Ultrasonic therapeutic apparatus

Abstract

The utility model discloses an ultrasonic therapeutic apparatus, relates to the technical field of ultrasonic therapy, the ultrasonic therapeutic apparatus comprises a transducer assembly and a driving assembly, the transducer assembly comprises a transducer support and a transducer installed on the transducer support, the driving assembly comprises a push rod and a screw rod which are arranged in parallel, and a moving part installed on the screw rod, the push rod is arranged between the moving part and the transducer support so as to be in transmission connection with the moving part and the transducer support, an inserting hole is formed in the moving part, an inserting part is arranged at the end, facing the moving part, of the push rod, the inserting part is inserted into the inserting hole and limited through the fixing shaft, and the size of the inserting hole is larger than that of the inserting part. And therefore, the inserting part can deviate by taking the fixed shaft as the center. According to the technical scheme, the push rod and the moving part are connected through the fixed shaft, and stable connection of the driving assembly can be guaranteed even under the condition that assembly tolerance exists.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic therapy, and particularly relates to an ultrasonic therapeutic apparatus. Background Art

[0002] A linear ultrasonic therapeutic apparatus usually drives a transducer assembly to perform a linear reciprocating motion through a transmission connection between a motor assembly and the transducer assembly. Among them, the motor assembly includes a push rod, a lead screw, and a moving nut installed on the lead screw. The moving nut is connected to the push rod, and the push rod is connected to the transducer assembly. Thus, when the lead screw rotates, it will drive the moving nut to move along the lead screw, and then drive the push rod and the transducer assembly to move, finally realizing the linear movement of the transducer assembly.

[0003] However, in the actual production and manufacturing process, the assembly of the push rod and the moving nut will inevitably be misaligned due to tolerance problems. To ensure stable connection of the push rod and the moving nut in the case of assembly tolerances, the connection method of the push rod and the moving nut is usually magnetic fixation. However, the size of the magnet is limited by the size of the handle. When the moving speed of the transducer assembly is too fast, the insufficient suction force of the magnet will cause the magnet to break away and lead to the problem of motion failure. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an ultrasonic therapeutic apparatus, aiming to ensure stable connection of the drive assembly even in the case of assembly tolerances.

[0005] To achieve the above purpose, the ultrasonic therapeutic apparatus proposed by the utility model includes a transducer assembly and a drive assembly. The transducer assembly includes a transducer bracket and a transducer installed on the transducer bracket. The drive assembly includes a push rod and a lead screw arranged in parallel, and a moving member installed on the lead screw. The push rod is arranged between the moving member and the transducer bracket to transmit and connect the moving member and the transducer bracket. A plug hole is formed on the moving member, and one end of the push rod facing the moving member has a plug portion. The plug portion is inserted into the plug hole and limited by a fixed shaft. The size of the plug hole is larger than the size of the plug portion, so that the plug portion can offset with the fixed shaft as the center.

[0006] In one embodiment, the movable part is provided with a first fixing hole which is arranged perpendicularly to the plug-in hole, and the size of the first fixing hole is consistent with the size of the fixed shaft. The plug-in part is provided with a second fixing hole, and the direction parallel to the axis of the push rod is defined as the width direction. In the plane where the push rod and the screw rod are located, the direction perpendicular to the axis of the push rod is defined as the height direction. The size of the second fixing hole in the width direction is consistent with the size of the fixed shaft in the width direction, and the size of the second fixing hole in the height direction is larger than the size of the fixed shaft in the height direction. The fixed shaft remains stable under the constraint of the first fixing hole, and the plug-in part can be offset in the height direction under the constraint of the fixed shaft.

[0007] In one embodiment, the second fixing hole is a straight hole provided along the axial direction of the fixing shaft, the top surface of the second fixing hole is provided as a first curved surface arched upward, and the bottom surface of the second fixing hole is provided as a second curved surface arched downward.

[0008] In one embodiment, the driving assembly further includes an auxiliary rod, one end of the auxiliary rod is connected to the transducer bracket, and the other end of the auxiliary rod is connected to the push rod via a connecting shaft; the second fixing hole is an arc-shaped hole with the connecting shaft as the center, and the fixing shaft is confined in the second fixing hole so that the push rod can swing in the plug-in hole with the connecting shaft as the center.

[0009] In one embodiment, the ultrasonic therapeutic device also includes a liquid storage tank structure, which is filled with a sound-conducting medium. The transducer bracket and the transducer are both arranged in the liquid storage tank structure. A water-permeable hole is provided on the transducer bracket, and the axial direction of the water-permeable hole is arranged parallel to the moving direction of the transducer bracket.

[0010] In one embodiment, the ultrasonic therapeutic device also includes a first telescopic tube and a second telescopic tube arranged in the liquid storage tank structure, the first telescopic tube is arranged on the side of the transducer bracket away from the screw rod, and the second telescopic tube is arranged on the side of the transducer bracket facing the screw rod, and the first telescopic tube and the second telescopic tube are extended and retracted under the pull of the transducer bracket.

[0011] In one embodiment, the transducer bracket includes a bracket body and a sleeve, the water-permeable holes are arranged at intervals on the bracket body, the sleeve is arranged at one end of the bracket body and is integrally connected to the bracket body, and the ends of the first telescopic tube and the second telescopic tube facing the transducer bracket are both connected and fixed to the sleeve.

[0012] In one embodiment, a chassis is disposed inside the sleeve, and the push rod is inserted into the first telescopic tube or the second telescopic tube to be in transmission connection with the chassis.

[0013] In one embodiment, the drive assembly further includes an auxiliary rod disposed inside the first telescopic tube or the second telescopic tube. One end of the auxiliary rod is fixedly connected to the chassis, and the other end of the auxiliary rod is fixedly connected to the push rod.

[0014] In one embodiment, a jack is formed in the side wall of the liquid storage chamber structure. A bearing is disposed in the jack. The push rod passes through the central hole of the bearing to be in transmission connection with the transducer bracket. The inner peripheral wall of the bearing is attached to the peripheral side wall of the push rod, and a ventilation groove is locally recessed in the inner peripheral wall of the bearing to communicate the chamber inside the telescopic tube and the chamber outside the telescopic tube.

[0015] Different from traditional ultrasonic therapy devices, the ultrasonic therapy device of the present invention is provided with a socket hole on the moving member, and a plugging portion is disposed at one end of the push rod facing the moving member. Then, the plugging portion is inserted into the socket hole and fixedly connected to the moving member through a fixed shaft. Obviously, the fixed shaft can bear a large force, and there will be no problem of falling off even if the movement speed of the transducer assembly is increased. Moreover, the size of the socket hole is larger than the size of the plugging portion, so that the plugging portion is allowed to deflect around the fixed shaft, thereby ensuring effective cooperation even when there is a positional deviation or an angular deviation between the push rod and the lead screw, and thus improving the stability and reliability of the connection between the push rod and the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 is a schematic cross-sectional structure diagram of an embodiment of the ultrasonic therapy device provided by the present invention;

[0018] Figure 2 is a cross-sectional view of the connection node between the push rod and the lead screw in an embodiment of the ultrasonic therapy device provided by the present invention;

[0019] Figure 3 is a cross-sectional view of the connection node between the push rod and the lead screw in another embodiment of the ultrasonic therapy device provided by the present invention;

[0020] Figure 4 is Figure 2Cross-sectional view of the connection node between the push rod and the lead screw in another direction;

[0021] Figure 5 Internal structure schematic diagram of the liquid storage bin structure of an embodiment of the ultrasonic therapeutic apparatus provided by the present utility model;

[0022] Figure 6 Structure schematic diagram of the transducer support in the ultrasonic therapeutic apparatus provided by the present utility model;

[0023] Figure 7 Schematic diagram of the connection node between the push rod and the bearing in the ultrasonic therapeutic apparatus provided by the present utility model.

[0024] Explanation of the reference numerals in the drawings:

[0025] 100, ultrasonic therapeutic apparatus; 1, liquid storage bin structure; 2, transducer assembly; 21, transducer support; 211, water-permeable hole; 213, support body; 214, sleeve; 216, chassis; 2161, ventilation hole; 22, transducer; 3, drive assembly; 31, push rod; 311, insertion part; 312, second fixing hole; 32, lead screw; 33, moving part; 34, auxiliary rod; 35, motor; 36, fixed shaft; 37, connecting shaft; 5, first telescopic tube; 6, second telescopic tube; 7, bearing; 71, ventilation groove; 8, sealing ring.

[0026] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications 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 invention provides an ultrasonic therapeutic apparatus 100 .

[0031] Reference Figures 1 to 3 , an embodiment of the ultrasonic therapeutic apparatus 100 includes a transducer assembly 2 and a drive assembly 3, the transducer assembly 2 includes a transducer bracket 21 and a transducer 22 mounted on the transducer bracket 21, the drive assembly 3 includes a push rod 31 and a screw rod 32 arranged in parallel, and a moving part 33 mounted on the screw rod 32, the push rod 31 is arranged between the moving part 33 and the transducer bracket 21 to transmit and connect the moving part 33 and the transducer bracket 21, a plug hole is opened on the moving part 33, and the end of the push rod 31 facing the moving part 33 has a plug portion 311, the plug portion 311 is inserted in the plug hole and limited by the fixed shaft 36, the size of the plug hole is larger than the size of the plug portion 311, so that the plug portion 311 can be offset with the fixed shaft 36 as the center.

[0032] It should be noted that the ultrasonic therapeutic device 100 also includes a therapeutic handle (not marked) and a therapeutic head mounted at one end of the therapeutic handle. The axis of the therapeutic handle is arranged along a first direction, and the axis of the therapeutic head is arranged along a second direction, and the first direction and the second direction are arranged crosswise, so that the overall shape of the ultrasonic therapeutic device 100 is in the shape of a "pistol", which is convenient for the operator to hold and use. Then, the transducer assembly 2 is arranged in the liquid storage tank structure 1 of the therapeutic head, and the drive assembly 3 is arranged in the therapeutic handle. The transducer assembly 2 includes a transducer bracket 21 and a transducer 22 mounted on the transducer bracket 21. The transducer 22 is used to emit ultrasonic waves toward the sound-transmitting port. The ultrasonic waves are transmitted to the sound-transmitting membrane of the sound-transmitting port through the sound-conducting medium and then act on the skin tissue, thereby achieving a therapeutic effect. The driving assembly 3 includes a push rod 31, a screw rod 32 and a motor 35 for driving the screw rod 32 to rotate. A moving part 33 is sleeved on the screw rod 32. The push rod 31 is arranged between the moving part 33 and the transducer bracket 21 to transmit the connection between the moving part 33 and the transducer bracket 21. The length direction of the transducer bracket 21 is parallel to the axial direction of the treatment head and perpendicular to the axial direction of the push rod 31. Therefore, the motor 35 drives the screw rod 32 to rotate, which will drive the moving part 33 on the screw rod 32 to move linearly. The movement of the moving part 33 will drive the push rod 31 to move. The movement of the push rod 31 will drive the transducer bracket 21 and the transducer 22 to perform linear reciprocating motion.

[0033] Conventional ultrasonic therapeutic devices usually use a magnetic fixation method to achieve the connection between the push rod 31 and the moving part 33, thereby ensuring that the two can be stably connected even if there is an assembly tolerance between the two. However, the size of the magnet will be limited by the size of the handle. When the transducer assembly 2 moves too fast, the insufficient suction force of the magnet will cause the magnet to detach, thereby causing the movement to fail. Unlike conventional ultrasonic therapeutic devices, the ultrasonic therapeutic device 100 of the present invention is provided with a plug hole on the moving part 33, and a plug part 311 is provided at one end of the push rod 31 facing the moving part 33. The plug part 311 is then inserted into the plug hole and fixedly connected to the moving part 33 via a fixed shaft 36. The fixed shaft 36 can be a screw that can withstand a large force, and there will be no problem of falling off even if the movement speed of the transducer assembly 2 is increased. Moreover, the width and height of the plug hole are respectively larger than the width and height of the plug part 311. In the figure, the X direction is the width direction, and the Y direction is the height direction, thereby allowing the plug part 311 to be offset in the X direction, Y direction and Z direction (the direction perpendicular to the X direction and Y direction is the Z direction) with the fixed axis 36 as the center, thereby ensuring that the push rod 31 and the screw rod 32 can also be effectively matched when there is a position deviation or an angle deviation, thereby improving the stability and reliability of the connection between the push rod 31 and the screw rod 32.

[0034] Specifically, a first fixing hole perpendicular to the insertion hole is formed in the moving member 33. The cross-sectional size of the first fixing hole is the same as that of the fixing shaft 36. For example, when the fixing shaft 36 is a screw, the screw includes a nut and a screw rod. At this time, the cross-sectional size of the first fixing hole is the same as that of the screw rod, so that the fixing shaft 36 can be kept stable under the constraint of the first fixing hole. A second fixing hole 312 is formed in the insertion portion 311, and the covering area of the second fixing hole 312 is larger than that of the first fixing hole. The direction parallel to the axis of the push rod 31 is defined as the width direction, that is, the X direction in the figure. In the plane where the push rod 31 and the lead screw 32 are located, the direction perpendicular to the axis of the push rod 31 is defined as the height direction, that is, the Y direction in the figure. When the push rod 31 is parallel to the lead screw 32, the dimension of the second fixing hole 312 in the width direction is the same as the dimension of the fixing shaft 36 in the width direction, and the dimension of the second fixing hole 312 in the height direction is larger than the dimension of the fixing shaft 36 in the height direction, so as to allow the push rod 31 to deflect in the height direction, as Figure 2 shown. Even if there is a slight height deviation between the push rod 31 and the moving member 33, the push rod 31 can be adjusted accordingly under the constraint of the fixing shaft 36 to maintain a stable connection with the moving member 33.

[0035] Furthermore, referring to Figure 2 , the second fixing hole 312 is a straight hole penetrating along the axis direction of the fixing shaft 36. The top surface of the second fixing hole 312 is set as a first curved surface arched upward, and the bottom surface of the second fixing hole 312 is set as a second curved surface arched downward. That is, the cross-section of the second fixing hole 312 is integrally in a shape of a runway circle. The design of the first curved surface and the second curved surface allows the push rod 31 to have more adjustment space in the height direction.

[0036] Referring to Figure 1 , in the ultrasonic therapeutic apparatus 100, the driving assembly 3 further includes an auxiliary rod 34. One end of the auxiliary rod 34 is connected to the transducer bracket 21, and the other end of the auxiliary rod 34 is connected to the push rod 31 through a connecting shaft 37. That is, the push rod 31 is connected to the transducer bracket 21 through the auxiliary rod 34. When the motor 35 drives the lead screw 32 to rotate, it will drive the moving member 33 on the lead screw 32 to linearly move. The movement of the moving member 33 will drive the push rod 31 and the auxiliary rod 34 to move together. The movement of the auxiliary rod 34 will drive the transducer bracket 21 and the transducer 22 to perform a linear reciprocating motion.

[0037] In Figure 3In the illustrated embodiment, the second fixing hole 312 is an arc-shaped hole centered on the connecting shaft 37. The fixing shaft 36 is confined within the second fixing hole 312. This allows the push rod 31 to wobble within the insertion hole centered on the connecting shaft 37. This arrangement of the second fixing hole 312 as an arc-shaped hole centered on the connecting shaft 37 ensures that even if the push rod 31 wobble within the insertion hole of the movable member 33, the connecting shaft 37 will not shift, thereby ensuring the stability of the auxiliary rod 34.

[0038] In the ultrasonic therapeutic apparatus 100, the transducer support 21 and the transducer 22 are both arranged in the liquid storage structure 1, and the liquid storage structure 1 is filled with a liquid sound-conducting medium. Therefore, the transducer support 21 needs to overcome the liquid resistance during the reciprocating movement. When the liquid resistance is too large, a jamming phenomenon may occur. To this end, an embodiment of the ultrasonic therapeutic apparatus 100 is provided with a water-permeable hole 211 on the transducer support 21, and the axial direction of the water-permeable hole 211 is arranged parallel to the moving direction of the transducer support 21, such as Figure 5 The provision of the water-permeable holes 211 can reduce the direct impact area between the sound-conducting medium and the transducer bracket 21, thereby reducing the movement resistance and avoiding the problem of the transducer bracket 21 being stuck during the movement.

[0039] In addition, the ultrasonic therapeutic device 100 may also include a first telescopic tube 5 and a second telescopic tube 6 arranged in the liquid storage tank structure 1. The first telescopic tube 5 is arranged on the side of the transducer bracket 21 away from the screw rod 32, and the second telescopic tube 6 is arranged on the side of the transducer bracket 21 facing the screw rod 32. The first telescopic tube 5 and the second telescopic tube 6 are extended and retracted under the traction of the transducer bracket 21 to buffer the resistance generated by the disturbance of the sound-conducting medium.

[0040] In order to achieve the connection between the first telescopic tube 5 and the second telescopic tube 6 and the transducer bracket 21, the transducer bracket 21 includes a bracket body 213 and a sleeve 214. The water-permeable holes 211 are arranged at intervals on the bracket body 213. The sleeve 214 is arranged at one end of the bracket body 213 and is integrally connected to the bracket body 213. The ends of the first telescopic tube 5 and the second telescopic tube 6 facing the transducer bracket 21 are both connected and fixed to the sleeve 214.

[0041] The surfaces of the first telescopic tube 5 and the second telescopic tube 6 are corrugated or wrinkled. When the sound-conducting medium produces large fluctuations, the telescopic tubes can be squeezed and the volume of the telescopic tubes can be changed, thereby absorbing and buffering the water pressure and preventing the sound-transmitting membrane from swelling under the action of water pressure.

[0042] At this time, the connection node between the push rod 31 and the transducer bracket 21 is preferably arranged inside the telescopic tube, so as to prevent the connection node from being corroded due to immersion in the sound conduction medium. For this purpose, a chassis 216 is arranged inside the sleeve 214, and the push rod 31 is inserted into the first telescopic tube 5 or the second telescopic tube 6 to be in transmission connection with the chassis 216.

[0043] Meanwhile, ventilation holes 2161 are formed in the chassis 216 to communicate the first telescopic tube 5 and the second telescopic tube 6, so as to avoid the jamming problem caused by the pressure difference generated during the movement of the first telescopic tube 5 and the second telescopic tube 6 on the chassis 216.

[0044] In this ultrasonic therapeutic apparatus 100, the driving assembly 3 further includes an auxiliary rod 34. The auxiliary rod 34 is arranged inside the first telescopic tube 5 or the second telescopic tube 6. One end of the auxiliary rod 34 is fixedly connected to the chassis 216, and the other end of the auxiliary rod 34 is fixedly connected to the push rod 31, that is, the push rod 31 is connected to the transducer bracket 21 through the auxiliary rod 34. During assembly, the transducer 22, the transducer bracket 21, the first telescopic tube 5, the second telescopic tube 6 and the auxiliary rod 34 are first assembled into an integral body as shown in Figure 3 shown, and then this integral body is installed into the liquid storage chamber structure 1. Finally, one end of the push rod 31 is inserted into the liquid storage chamber structure 1 to be fixedly connected to the auxiliary rod 34, and the other end of the push rod 31 is inserted into the insertion hole to be connected to the moving member 33.

[0045] To facilitate the connection of the push rod 31, a jack is formed in the side wall of the liquid storage chamber structure 1, and a bearing 7 is arranged inside the jack. The push rod 31 passes through the central hole of the bearing 7 to be in transmission connection with the transducer bracket 21. The inner peripheral wall of the bearing 7 is arranged in fit with the peripheral side wall of the push rod 31. The precise fit between the push rod 31 and the bearing 7 can ensure the stability of the movement of the transducer assembly 2. However, at this time, the fit clearance between the push rod 31 and the bearing 7 is very small, and the gas inhaled during the movement of the telescopic tube is difficult to discharge, which will cause the volume of the telescopic tube to expand. This volume change transmitted to the sound transmission film may cause the sound transmission film to bulge. For this reason, in an embodiment of this ultrasonic therapeutic apparatus 100, a ventilation groove 71 is locally recessed in the inner peripheral wall of the bearing 7 to communicate the chamber inside the telescopic tube and the chamber outside the telescopic tube. The arrangement of the ventilation groove 71 enables the gas inside the telescopic tube to be discharged smoothly, avoiding the problem of the sound transmission film bulging caused by the expansion of the telescopic tube.

[0046] Meanwhile, a sealing ring 8 is sleeved on the bearing 7, and the sealing ring 8 is located at the connection between the bearing 7 and the liquid storage chamber structure 1 to prevent the sound conduction medium from leaking.

[0047] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An ultrasonic therapeutic apparatus, characterized in that, include: A transducer assembly, the transducer assembly comprising a transducer support and a transducer mounted on the transducer support; A driving assembly, the driving assembly includes a push rod and a screw rod arranged in parallel, and a moving part installed on the screw rod, the push rod is arranged between the moving part and the transducer bracket to transmit the connection between the moving part and the transducer bracket, a plug hole is provided on the moving part, and the end of the push rod facing the moving part has a plug part, the plug part is inserted in the plug hole and limited by a fixed shaft, the size of the plug hole is larger than the size of the plug part, so that the plug part can be offset with the fixed shaft as the center.

2. The ultrasonic therapeutic apparatus according to claim 1, characterized in that, The movable part is provided with a first fixing hole which is arranged perpendicularly to the plug hole, and the size of the first fixing hole is consistent with the size of the fixed shaft. The plug-in part is provided with a second fixing hole, and the direction parallel to the axis of the push rod is defined as the width direction. In the plane where the push rod and the screw rod are located, the direction perpendicular to the axis of the push rod is defined as the height direction. The size of the second fixing hole in the width direction is consistent with the size of the fixed shaft in the width direction, and the size of the second fixing hole in the height direction is larger than the size of the fixed shaft in the height direction. The fixed shaft remains stable under the constraint of the first fixing hole, and the plug-in part can be offset in the height direction under the constraint of the fixed shaft.

3. The ultrasonic therapeutic apparatus according to claim 2, wherein, The second fixing hole is a straight hole provided along the axis of the fixing shaft. The top surface of the second fixing hole is provided as a first curved surface arched upward, and the bottom surface of the second fixing hole is provided as a second curved surface arched downward.

4. The ultrasonic therapeutic apparatus according to claim 2, characterized in that, The driving assembly further includes an auxiliary rod, one end of which is connected to the transducer bracket, and the other end of which is connected to the push rod via a connecting shaft; The second fixing hole is an arc-shaped hole with the connecting shaft as the center. The fixing shaft is restricted in the second fixing hole so that the push rod can swing in the plug hole with the connecting shaft as the center.

5. The ultrasonic therapeutic apparatus according to any one of claims 1 to 4, characterized in that, The ultrasonic therapeutic device also includes a liquid storage tank structure, which is filled with a sound-conducting medium. The transducer bracket and the transducer are both arranged in the liquid storage tank structure. A water-permeable hole is opened on the transducer bracket, and the axial direction of the water-permeable hole is arranged parallel to the moving direction of the transducer bracket.

6. The ultrasonic therapeutic apparatus according to claim 5, characterized in that, The ultrasonic therapeutic device also includes a first telescopic tube and a second telescopic tube arranged in the liquid storage tank structure. The first telescopic tube is arranged on the side of the transducer bracket away from the screw rod, and the second telescopic tube is arranged on the side of the transducer bracket facing the screw rod. The first telescopic tube and the second telescopic tube are extended and retracted under the pull of the transducer bracket.

7. The ultrasonic therapeutic apparatus according to claim 6, characterized in that, The transducer bracket includes a bracket body and a sleeve, the water-permeable holes are arranged at intervals on the bracket body, the sleeve is arranged at one end of the bracket body and is integrally connected to the bracket body, and the ends of the first telescopic tube and the second telescopic tube facing the transducer bracket are both connected and fixed to the sleeve.

8. The ultrasonic therapeutic apparatus according to claim 7, characterized in that, A chassis is provided inside the sleeve, and the push rod is inserted into the first telescopic tube or the second telescopic tube to be in driving connection with the chassis; Vent holes are formed in the chassis to communicate the first telescopic tube and the second telescopic tube.

9. The ultrasonic therapeutic apparatus according to claim 8, characterized in that, The driving assembly further includes an auxiliary rod, the auxiliary rod is arranged inside the first telescopic tube or the second telescopic tube, one end of the auxiliary rod is fixedly connected with the chassis, and the other end of the auxiliary rod is fixedly connected with the push rod.

10. The ultrasonic therapeutic apparatus according to claim 6, wherein, A jack is formed in the side wall of the liquid storage bin structure, a bearing is arranged in the jack, the push rod passes through the central hole of the bearing to be in driving connection with the transducer bracket, the inner peripheral wall of the bearing is attached to the peripheral side wall of the push rod, and a ventilation groove is partially concavely formed in the inner peripheral wall of the bearing to communicate the chamber inside the telescopic tube and the chamber outside the telescopic tube.

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