Ultrasonic treatment head

Abstract

The utility model discloses an ultrasonic treatment head, relates to ultrasonic treatment technical field, this ultrasonic treatment head includes liquid storage chamber structure, transducer subassembly, drive subassembly and seal subassembly, liquid storage chamber structure is filled with sound conducting medium, transducer subassembly is provided in liquid storage chamber structure, drive subassembly is provided with drive subassembly, seal subassembly is provided with drive subassembly, the seal subassembly is provided with drive subassembly. The driving assembly penetrates through the liquid storage bin structure to be in transmission connection with the transducer assembly, the sealing assembly comprises a sealing piece and an elastic piece, the sealing piece is arranged on the driving assembly in a sleeving mode and located at the connecting position of the driving assembly and the liquid storage bin structure, the elastic piece abuts against the sealing piece, and the elastic piece is located at the connecting position of the driving assembly and the liquid storage bin structure. And the extrusion part is used for providing extrusion force for the sealing part. According to the ultrasonic treatment head, the elastic piece is arranged to provide continuous extrusion for the sealing piece, so that the sealing piece is tightly attached to the peripheral side wall in contact with the sealing piece, the problem of loosening of the sealing piece is effectively solved, and the sealing performance is guaranteed.

Description

Technical Field

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

[0002] In recent years, non-invasive cosmetic technology using focused ultrasound has been widely used. The principle is that ultrasonic energy is emitted through a transducer unit installed inside the treatment head. After the ultrasonic energy is transmitted through a liquid conductor, it is focused on the subcutaneous tissue or fat tissue, and forms a "high temperature point" on the local subcutaneous tissue or fat tissue, thereby causing the local subcutaneous tissue to contract under the action of high temperature, thereby achieving the cosmetic effect of improving skin firmness and losing weight.

[0003] During the actual treatment process, the transducer needs to be driven up and down by the transmission shaft to adjust the position of the transducer, so as to treat skin layers at different depths. However, the chamber of the treatment head is filled with liquid sound-conducting medium. In order to prevent the liquid sound-conducting medium from leaking out of the shaft hole, a sealing ring needs to be installed on the rotating shaft. During actual use, the long-term friction between the transmission shaft and the sealing ring will cause the sealing ring to wear. The worn sealing ring is prone to loosening, thereby weakening the sealing performance and posing a risk of leakage. Utility Model Content

[0004] The main purpose of the utility model is to provide an ultrasonic treatment head, aiming to solve the problem of loosening of the sealing ring due to wear.

[0005] To achieve the above-mentioned purpose, the ultrasonic therapy head proposed in the present invention includes a liquid storage tank structure, a transducer assembly, a drive assembly and a sealing assembly. The liquid storage tank structure is filled with a sound-conducting medium, the transducer assembly is arranged in the liquid storage tank structure, the drive assembly is passed through the liquid storage tank structure to be transmission-connected to the transducer assembly, the sealing assembly includes a sealing member and an elastic member, the sealing member is sleeved on the drive assembly and is located at the connection between the drive assembly and the liquid storage tank structure, the elastic member is arranged to abut the sealing member to provide extrusion force for the seal.

[0006] In one embodiment, a sealing groove is provided on the side wall of the liquid storage structure that is in contact with the driving assembly or on the side wall of the driving assembly that is in contact with the liquid storage structure, and the sealing member and the elastic member are both accommodated in the sealing groove.

[0007] In one embodiment, the sealing groove is connected to the chamber of the liquid storage structure, and the sealing assembly further includes a pressing piece, which is detachably mounted on the driving assembly and seals the sealing groove.

[0008] In one embodiment, the elastic member and the sealing member are both sleeved on the driving assembly, and one end of the elastic member abuts against the sealing member to provide axial extrusion force for the sealing member.

[0009] In one embodiment, the sealing member is concentrically arranged with the elastic member, and the inner peripheral wall or the outer peripheral wall of the sealing member abuts against the elastic member to provide radial extrusion force for the sealing member.

[0010] In one embodiment, an annular groove is formed on the inner circumferential wall or the outer circumferential wall of the sealing member, and the elastic member is sleeved on the sealing member and embedded in the annular groove.

[0011] In one embodiment, the elastic member is a canted coil spring.

[0012] In one embodiment, sealing teeth are protruding from the inner circumferential wall and / or the outer circumferential wall of the sealing element.

[0013] In one embodiment, the drive assembly includes a transmission shaft that passes through and is rotationally connected to the liquid reservoir structure. An axial telescopic channel is excavated on one end of the transmission shaft that faces the transducer assembly. An optical axis is protruding from the side of the transducer assembly that faces the drive assembly. The optical axis is inserted into the telescopic channel to be in transmission connection with the transmission shaft. Rotation of the transmission shaft drives the optical axis up and down.

[0014] In one embodiment, the side wall of the telescopic channel is provided with an internal thread, the peripheral side wall of the optical shaft is provided with an external thread, and the optical shaft is inserted into the telescopic channel to be threadedly connected with the transmission shaft.

[0015] The sealing assembly in this ultrasonic treatment head includes a sealing member and an elastic member, wherein the sealing member is sleeved on the driving assembly and is located at the connection between the driving assembly and the liquid storage tank structure. The elastic member and the sealing member are arranged in abutment with each other to provide continuous extrusion for the sealing member. Even if the sealing member is worn due to the friction of the driving assembly, the sealing member can always fit tightly with the contacting peripheral side wall under the extrusion of the elastic member, effectively eliminating the problem of loosening of the sealing member and ensuring the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1This is a structural diagram of the first embodiment of the ultrasonic therapy head provided by the utility model;

[0018] Figure 2 This is a schematic structural diagram of the second embodiment of the ultrasonic therapy head provided by the present utility model;

[0019] Figure 3 This is a structural schematic diagram of the third embodiment of the ultrasonic therapy head provided by the present utility model;

[0020] Figure 4 for Figure 3 An enlarged view of the sealing position in FIG;

[0021] Figure 5 This is a structural schematic diagram of a fourth embodiment of the ultrasonic therapy head provided by the present utility model;

[0022] Figure 6 for Figure 5 An enlarged view of the sealing position in FIG;

[0023] Figure 7 This is a schematic diagram of the internal structure of the liquid storage tank structure in an embodiment of the ultrasonic treatment head provided by the present invention.

[0024] Description of Figure Numbers:

[0025] 100. Ultrasonic therapy head; 10. Liquid storage tank structure; 11. Limiting plate; 13. Guide groove; 20. Transducer assembly; 21. Optical axis; 22. Guide rib; 30. Drive assembly; 31. Transmission shaft; 311. Telescopic channel; 40. Sealing assembly; 41. Sealing element; 42. Elastic element; 43. Pressing piece.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually 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 present invention.

[0030] The present utility model provides an ultrasonic treatment head 100 .

[0031] See also Figures 1 to 6 The embodiment of the ultrasonic therapy head 100 includes a liquid storage tank structure 10, a transducer assembly 20, a drive assembly 30 and a sealing assembly 40. The liquid storage tank structure 10 is filled with a sound-conducting medium. The transducer assembly 20 is arranged in the liquid storage tank structure 10. The drive assembly 30 is passed through the liquid storage tank structure 10 to be transmission-connected with the transducer assembly 20. The sealing assembly 40 includes a sealing member 41 and an elastic member 42. The sealing member 41 is sleeved on the drive assembly 30 and is located at the connection between the drive assembly 30 and the liquid storage tank structure 10. The elastic member 42 is arranged in contact with the sealing member 41 to provide an extrusion force for the sealing member 41.

[0032] In the present ultrasonic therapy head 100, the transducer assembly 20 may include a transducer holder and a transducer mounted on the transducer holder. The transducer is immersed in a sound-conducting medium. The ultrasonic waves emitted by the transducer are transmitted through the sound-conducting medium to the acoustic window of the liquid reservoir structure 10, where they act on the skin tissue, thereby achieving a therapeutic effect. Simultaneously, a drive assembly 30 is disposed through the liquid reservoir structure 10 and is in transmission connection with the transducer assembly 20 to drive the transducer assembly 20 up and down. For example, the drive assembly 30 can drive the transducer assembly 20 up and down by rotating, or by telescoping. To prevent the sound-conducting medium from leaking from the connection between the drive assembly 30 and the liquid reservoir structure 10, a sealing assembly 40 is also required at this location. Conventional ultrasonic therapy heads use only a sealing ring as the sealing assembly. However, prolonged friction between the drive assembly and the sealing ring inevitably causes wear of the sealing ring, which can easily cause the sealing ring to loosen and weaken the sealing performance. Unlike traditional ultrasonic therapy heads, the sealing assembly 40 in the present ultrasonic therapy head 100 includes a sealing member 41 and an elastic member 42, wherein the sealing member 41 is sleeved on the driving assembly 30 and is located at the connection between the driving assembly 30 and the liquid storage tank structure 10, and the elastic member 42 is arranged in abutment with the sealing member 41 to provide continuous extrusion for the sealing member 41. Even if the sealing member 41 is worn due to the friction of the driving assembly 30, the sealing member 41 can always fit tightly with the contacted peripheral side wall under the extrusion of the elastic member 42, effectively eliminating the problem of loosening of the sealing member 41 and ensuring the sealing performance.

[0033] Regarding the installation of the sealing assembly 40, a sealing groove is recessed in the side wall of the liquid storage structure 10 that is in contact with the driving assembly 30 or the side wall of the driving assembly 30 that is in contact with the liquid storage structure 10, and the sealing member 41 and the elastic member 42 are both accommodated in the sealing groove.

[0034] exist Figure 1 In the embodiment shown, a sealing groove is recessed in the side wall of the liquid storage structure 10 that is in contact with the drive assembly 30, and a sealing member 41 and an elastic member 42 are both accommodated in the sealing groove. At this time, the sealing member 41 and the elastic member 42 are both annular, and the sealing member 41 and the elastic member 42 are concentrically arranged. The sealing member 41 is sleeved on the drive assembly 30, and the inner peripheral wall of the sealing member 41 is in contact with the side peripheral wall of the drive assembly 30. Subsequently, the elastic member 42 is sleeved on the sealing member 41, and the outer peripheral wall of the sealing member 41 is in contact with the inner peripheral wall of the elastic member 42, and the outer peripheral wall of the elastic member 42 is in contact with the bottom wall of the sealing groove. Among them, the sealing member 41 can be a sealing ring, and the elastic member 42 can be one of a compression spring, a canted coil spring, a spring sheet, or a rubber ring, and is in a compressed state.

[0035] Figure 2 The embodiment shown is Figure 1The embodiment shown differs in that the sealing groove is recessed in the side wall of the drive assembly 30 that abuts the liquid storage structure 10. In this case, the elastic member 42 is disposed between the sealing member 41 and the bottom wall of the sealing groove, and the outer wall of the sealing member 41 abuts the inner wall of the liquid storage structure 10. This arrangement also achieves the sealing effect of the previous embodiment, and will not be repeated here.

[0036] like Figure 3 and Figure 4 As shown, the inner or outer wall of the seal 41 may be provided with an annular groove, and the elastic member 42 is sleeved on the seal 41 and embedded in the annular groove, thereby realizing the limited installation of the elastic member 42 and preventing the elastic member 42 from shifting during reuse.

[0037] In this case, the elastic member 42 can be a canted coil spring and is in a compressed state. A canted coil spring is a circular spring with elliptical windings that are tilted at a certain angle. When compressed, each winding deforms independently. Regardless of which part of the winding deforms, it exerts a radial elastic compressive force on the seal 41, thereby tightly fitting the seal 41 to the drive assembly 30 and ensuring a good seal.

[0038] exist Figure 5 In the illustrated embodiment, the sealing member 41 and the elastic member 42 are both housed within the sealing groove, and both the elastic member 42 and the sealing member 41 are sleeved onto the drive assembly 30. One end of the elastic member 42 abuts against the sealing member 41, and the elastic member 42 is in a compressed state, providing an axial compressive force on the sealing member 41. The sealing member 41 is compressed and deformed by the axial pressure of the elastic member 42, thereby being squeezed outward to closely fit the drive assembly 30 and ensure a good sealing effect.

[0039] exist Figure 3 and Figure 5 In the illustrated embodiment, the sealing groove is interlinked with the chamber of the liquid reservoir structure 10. In this case, the sealing assembly 40 further includes a pressing plate 43, which is removably mounted on the drive assembly 30 and seals the sealing groove. The pressing plate 43 can be fixedly connected to the chamber wall of the liquid reservoir structure 10 via fasteners (such as screws). After the sealing member 41 and the elastic member 42 are placed in the sealing groove, the pressing plate 43 seals the sealing groove, facilitating installation of the sealing member 41 and the elastic member 42.

[0040] Furthermore, the inner circumferential wall and / or the outer circumferential wall of the seal 41 may be convexly provided with sealing teeth. The provision of the sealing teeth can reduce the contact area between the seal 41 and the fitting surface, increase the pressure, and further ensure the sealing performance of the seal 41.

[0041] In the present ultrasonic therapy head 100, the drive assembly 30 is used to drive the transducer assembly 20 to move up and down. Specifically, the drive assembly 30 includes a transmission shaft 31, which is disposed through the liquid reservoir structure 10 and is rotationally connected thereto. An axial telescopic channel 311 is excavated at one end of the transmission shaft 31 facing the transducer assembly 20. An optical axis 21 is protruding from the side of the transducer assembly 20 facing the drive assembly 30. The optical axis 21 is inserted into the telescopic channel 311 for transmission connection with the transmission shaft 31. Rotation of the transmission shaft 31 drives the optical axis 21 up and down. For example, the sidewalls of the telescopic channel 311 are provided with internal threads, while the peripheral sidewalls of the optical axis 21 are provided with external threads. The optical axis 21 is inserted into the telescopic channel 311 for threaded connection with the transmission shaft 31.

[0042] At this time, the sealing assembly 40 is located at the connection between the transmission shaft 31 and the liquid storage tank structure 10. In addition, the driving assembly 30 also includes a motor, which has a rotating shaft. The rotating shaft of the motor is in driving connection with the transmission shaft 31, so that the rotation of the rotating shaft will drive the transmission shaft 31 to rotate. The rotation of the transmission shaft 31 will drive the optical axis 21 to move up and down, thereby driving the transducer assembly 20 to move up and down, thereby adjusting the vertical height of the transducer assembly 20.

[0043] In addition, the circumferential side of the transducer assembly 20 may be provided with a guide rib 22, and the inner wall of the liquid storage tank structure 10 may be provided with at least two spaced-apart limiting plates 11, with a guide groove 13 formed between the two limiting plates 11. Figure 7 As shown, the width of the guide groove 13 is consistent with the thickness of the guide rib 22, and the guide rib 22 is inserted into the guide groove 13. The limiting piece 11 can guide and limit the guide rib 22, thereby preventing the transducer assembly 20 from deflecting during the upward and downward movement.

[0044] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An ultrasonic treatment head, characterized in that: include: A liquid storage structure filled with a sound-conducting medium; a transducer assembly, the transducer assembly being disposed in the liquid storage structure; A drive assembly, the drive assembly being arranged through the liquid storage structure to be transmission-connected to the transducer assembly; The sealing assembly includes a sealing member and an elastic member. The sealing member is sleeved on the driving assembly and is located at the connection between the driving assembly and the liquid storage tank structure. The elastic member is arranged in abutment with the sealing member to provide extrusion force for the sealing member.

2. The ultrasonic treatment head according to claim 1, wherein: A sealing groove is provided on the peripheral wall surface of the liquid storage structure that is in contact with the driving component or the peripheral wall surface of the driving component that is in contact with the liquid storage structure. The sealing member and the elastic member are both accommodated in the sealing groove.

3. The ultrasonic treatment head according to claim 2, wherein: The sealing groove is connected to the chamber of the liquid storage structure, and the sealing component further includes a pressing piece, which is detachably mounted on the driving component and seals the sealing groove.

4. The ultrasonic treatment head according to claim 1, wherein: The elastic member and the sealing member are both sleeved on the driving assembly, and the elastic member and the sealing member are axially stacked. One end of the elastic member abuts against the sealing member to provide axial extrusion force for the sealing member.

5. The ultrasonic treatment head according to claim 1, wherein: The sealing member is concentrically arranged with the elastic member, and the inner peripheral wall or the outer peripheral wall of the sealing member abuts against the elastic member to provide radial extrusion force for the sealing member.

6. The ultrasonic treatment head according to claim 5, characterized in that: An annular groove is concavely formed on the inner circumferential wall or the outer circumferential wall of the sealing component, and the elastic component is sleeved on the sealing component and embedded in the annular groove.

7. The ultrasonic treatment head according to claim 5, wherein: The elastic member is a canted coil spring.

8. The ultrasonic treatment head according to claim 1, wherein: The inner peripheral wall and / or the outer peripheral wall of the sealing element are convexly provided with sealing teeth.

9. The ultrasonic treatment head according to claim 1, wherein: The drive assembly includes a transmission shaft, which is passed through the liquid storage structure and is rotatably connected to the liquid storage structure. An axial telescopic channel is dug at one end of the transmission shaft facing the transducer assembly. An optical axis is protruded from one side of the transducer assembly facing the driving assembly. The optical axis is inserted into the telescopic channel to be in transmission connection with the transmission shaft. The transmission shaft rotates to drive the optical axis to move up and down.

10. The ultrasonic treatment head according to claim 9, wherein: The side wall of the telescopic channel is provided with an internal thread, the peripheral side wall of the optical shaft is provided with an external thread, and the optical shaft is inserted into the telescopic channel to be threadedly connected with the transmission shaft.

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