A coupling agent auxiliary device for ultrasound examination

Abstract

The present invention discloses a coupling agent auxiliary device for ultrasonic examination, which belongs to the technical field of medical examination auxiliary instruments. The device comprises a sealed box, the top of which is open, the bottom of which is fixedly connected with a support leg, and a compression plate is slidably connected inside the sealed box. By setting up a sealed box, the coupling agent is filled in the sealed box to isolate it from the external environment, so that the sealing and safety of the coupling agent can be guaranteed. By setting up a heating rod in the sealed box, the coupling agent can be preheated when the coupling agent is used, so as to avoid the coupling agent temperature being too low to stimulate the patient's skin, resulting in a poor patient experience. By setting up a coupling agent detection mechanism, the working state of the coupling agent nozzle can be switched according to the coupling agent condition on the skin of different parts of the patient. On the premise of ensuring that the coupling agent is applied in an appropriate amount to the patient's examination part, the amount of coupling agent used is also saved, thereby avoiding the waste of medical resources.

Description

Technical Field

[0001] The invention belongs to the technical field of medical examination auxiliary instruments, and in particular relates to a coupling agent auxiliary device for ultrasonic examination. Background Art

[0002] During ultrasound examination, since the transmission efficiency of ultrasound in the air is poor, medical staff need to apply coupling agent on the patient's skin when performing ultrasound examination on the patient. The role of the coupling agent is to fill the gaps on the patient's skin so that the ultrasound probe can fit the patient's skin completely, thereby avoiding the influence of air and forming a clear image. In addition, the coupling agent also helps the probe to slide on the skin, reducing the discomfort caused by friction, and also allows the doctor to operate more flexibly.

[0003] The prior art still has the following deficiencies:

[0004] During the existing ultrasound examination, the patient needs to lie on the examination bed, exposing the examination area, and the medical staff directly squeezes the coupling agent on the patient's area and spreads it evenly with the ultrasonic probe. This method of applying the coupling agent is the simplest, but the problem is that the patient's body sensation is extremely poor. Since the overall temperature of the coupling agent is significantly lower than the patient's body temperature, the patient's skin will be irritated. At the same time, since the extrusion amount of the coupling agent is extremely poorly controllable, if too much coupling agent is extruded, it will cause the coupling agent to flow onto the examination bed, making cleaning inconvenient. If too little coupling agent is extruded, the coupling agent will be unevenly distributed, and the gaps on the patient's skin will not be fully filled. When the ultrasonic probe moves on the patient's skin, there will be a gap between the ultrasonic probe and the patient's skin, resulting in blurred imaging, and medical staff cannot obtain clear imaging.

[0005] In addition, during the use of the coupling agent, the coupling agent needs to be sealed and stored. The cleanliness of the coupling agent directly affects the safety of the use of the coupling agent. When using the existing bottled coupling agent, if the medical staff fails to clean the bottle mouth and seal the coupling agent in time, the coupling agent is easily contaminated, resulting in subsequent inability to use. Summary of the invention

[0006] In order to overcome the above defects, the present invention provides a coupling agent auxiliary device for ultrasonic examination, which solves the problems in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: a coupling agent auxiliary device for ultrasonic examination, comprising:

[0008] A sealed box, wherein the top of the sealed box is open, the bottom of the sealed box is fixedly connected to a supporting leg, a compression plate is slidably connected inside the sealed box, two heating rods are fixedly connected to the bottom of the sealed box, the heating rods penetrate the compression plate and are slidably connected thereto, a servo motor unit is fixedly connected to the bottom of the sealed box, a threaded rod is rotatably connected to the inner bottom of the sealed box, the output end of the servo motor unit penetrates the sealed box and is coaxially fixedly connected to the threaded rod, the threaded rod penetrates the compression plate and is threadedly connected thereto, and a liquid outlet is provided on one side of the sealed box;

[0009] An ultrasonic probe, wherein a matching enclosure is fixedly connected to the outside of the ultrasonic probe, a plurality of rotation grooves are provided on the matching enclosure, a connecting shaft is fixedly connected in the rotation groove, a rolling wheel is provided on the connecting shaft, and a coupling agent detection mechanism is provided in the rolling wheel;

[0010] The coupling agent detection mechanism includes a control disk fixedly connected to the connecting shaft, the rolling wheel is rotatably connected to the connecting shaft, the control disk is rotatably connected with a rotating disk, the rotating disk is provided with a gear ring, the control disk is fixedly connected with an arc bracket, the arc bracket is fixedly connected with a stepping motor, the output end of the stepping motor is coaxially fixedly connected with a matching gear, the matching gear is meshed with the gear ring, three sliding grooves are equidistantly provided on the control disk, the three sliding grooves are radially arranged along the control disk, a matching slide is slidably connected in the sliding groove, and a limiting pin is provided on the matching slide. The rotating disk is provided with three arc grooves, the limit pin is slidably connected to the arc groove on the corresponding side, the end of the matching slide away from the axis of the control disk is fixedly connected to a buffer shell, a sliding plate is slidably connected in the buffer shell, a buffer spring and a No. 1 telescopic rod are fixedly connected in the buffer shell, the buffer spring is sleeved on the outside of the No. 1 telescopic rod, the output ends of the buffer spring and the No. 1 telescopic rod are fixedly connected to the sliding plate, a connecting shaft is fixedly connected to the sliding plate, and an arc-shaped bonding plate is fixedly connected to the end of the connecting shaft away from the sliding plate, and the arc-shaped bonding plate is bonded to the inner wall of the rolling wheel.

[0011] As a further solution of the present invention: a photoelectric switch receiver and a light source are arranged in the matching enclosure, and a shielding folding plate is arranged at the axis center position of the rolling wheel.

[0012] As a further solution of the present invention: four coupling agent nozzles are arranged on the matching enclosure, and two centralized ports are fixedly connected to the side of the matching enclosure away from the ultrasonic probe, and two connecting pipes are connected to the centralized ports.

[0013] As a further solution of the present invention: a buffer box is arranged at one end of the matching enclosure close to the centralized port, two return springs and a second telescopic rod are fixedly connected in the buffer box, and the return spring is sleeved on the outside of the second telescopic rod.

[0014] As a further solution of the present invention: a holding handle is slidably connected in the buffer box, the holding handle is fixedly connected to one end of the return spring away from the buffer box and the output end of the second telescopic rod, and a button switch is arranged in the buffer box.

[0015] As a further solution of the present invention: a connecting plate is fixedly connected to the bottom of the holding handle, a plug hole and a coupling agent inlet are provided on the connecting plate, and the coupling agent inlet and outlet are connected through a hose.

[0016] As a further solution of the present invention: the coupling agent liquid inlet is connected to four connecting pipes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a sealed box and fills the coupling agent in the sealed box to isolate it from the external environment, thereby ensuring the sealing and safety of the coupling agent. At the same time, when the coupling agent is taken, the threaded rod can be driven by controlling the servo motor unit to release the coupling agent quantitatively. By controlling the amount of coupling agent, medical personnel can better control the application range and degree of the coupling agent, and avoid coupling agent waste while ensuring that the coupling agent is evenly applied.

[0019] The present invention arranges a heating rod in a sealed box, so that the coupling agent can be preheated when the coupling agent is used, thereby avoiding the situation where the coupling agent temperature is too low to irritate the patient's skin and the patient has a poor experience.

[0020] The present invention is provided with a coupling agent detection mechanism. By setting a plurality of rotating grooves and setting a plurality of rolling wheels in the rotating grooves, the rotating disk is controlled to rotate by a micro-stepping motor. The arc groove on the rotating disk will make the limit pin on the matching slide drive the matching slide to move, so that the pressure between the arc-shaped bonding plate and the rolling wheel can be adjusted, and the friction force is affected by the friction coefficient and the pressure. At this time, the friction resistance encountered by the rolling wheel when rotating will be greatly increased. Since the coupling agent will play a lubricating role when being applied, the lubrication effect of the coupling agent and whether the application is uniform can be understood according to the rotation of the rolling wheel. When the rolling wheel rotates, the shielding folding plate rotates with the connecting shaft to shield the light generated by the light source. At this time, the value of the photoelectric switch receiver will change, and the coupling agent nozzle will continuously extrude the coupling agent. When the rolling wheel stops rotating, the corresponding coupling agent nozzle will stop extruding the coupling agent. In this way, the working state of the coupling agent nozzle can be switched according to the coupling agent conditions on the skin of different parts of the patient. On the premise of ensuring that the coupling agent is applied in an appropriate amount at the patient's examination part, the use amount of the coupling agent is also saved to avoid wasting medical resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of part A;

[0023] Figure 3 It is a schematic diagram of the three-dimensional internal structure of the sealing box of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the ultrasonic probe part of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the scroll wheel of the present invention;

[0026] Figure 6 is a schematic diagram of the three-dimensional structure of the scroll wheel of the present invention from another angle;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the matching slide plate part of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the matching enclosure part of the present invention;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional internal structure of the matching enclosure of the present invention.

[0030] In the figure: 1 sealing box, 2 supporting legs, 3 compression plate, 4 heating rod, 5 servo motor unit, 6 threaded rod, 7 ultrasonic probe, 8 matching enclosure, 9 rotating groove, 10 rolling wheel, 11 control plate, 12 rotating plate, 13 gear ring, 14 arc bracket, 15 stepping motor, 16 matching gear, 17 matching slide plate, 18 limit pin, 19 arc groove, 20 buffer shell, 21 sliding plate, 22 buffer spring, 23 No. 1 telescopic rod, 24 arc fitting plate, 25 photoelectric switch receiver, 26 light source, 27 shielding folding plate, 28 coupling agent nozzle, 29 centralized port, 30 buffer box, 31 reset spring, 32 No. 2 telescopic rod, 33 holding handle, 34 button switch, 35 connecting plate, 36 jack, 37 coupling agent liquid inlet. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0032] like Figure 1-Figure 9 As shown, the present invention provides a technical solution:

[0033] A sealed box 1 is provided with an opening at the top, a supporting leg 2 is fixedly connected to the bottom of the sealed box 1, a compression plate 3 is slidably connected inside the sealed box 1, two heating rods 4 are fixedly connected to the bottom of the sealed box 1, the heating rod 4 penetrates the compression plate 3 and is slidably connected thereto, a servo motor unit 5 is fixedly connected to the bottom of the sealed box 1, a threaded rod 6 is rotatably connected to the inner bottom of the sealed box 1, an output end of the servo motor unit 5 penetrates the sealed box 1 and is coaxially fixedly connected to the threaded rod 6, the threaded rod 6 penetrates the compression plate 3 and is threadedly connected thereto, and a liquid outlet is provided on one side of the sealed box 1;

[0034] Specifically, the sealed box 1 is used as a storage device for the coupling agent. The heating rod 4 provided in the sealed box 1 can heat the coupling agent, so that when the coupling agent is applied to the patient, the irritation of the coupling agent will be lower. Specifically, when the coupling agent in the sealed box 1 is pumped out, the threaded rod 6 can be rotated by the power of the servo motor unit 5. The rotation of the threaded rod 6 will cause the compression plate 3 threadedly connected thereto to move up and down. When the compression plate 3 moves down, the coupling agent in the sealed box 1 can be squeezed out.

[0035] Ultrasonic probe 7, the outside of the ultrasonic probe 7 is fixedly connected with a matching enclosure 8, the matching enclosure 8 is provided with a plurality of rotation slots 9, a connecting shaft is fixedly connected in the rotation slot 9, a rolling wheel 10 is provided on the connecting shaft, and a coupling agent detection mechanism is provided in the rolling wheel 10. It should be noted that a wireless transmitting module is provided inside the ultrasonic probe 7, and a wireless receiving module is provided inside the detection instrument, so as to connect the detection instrument with data. The wireless LAN technology based on the IEEE 802.11 standard can not only support the operation of multiple ultrasonic probes 7 at the same time, but also realize the synchronous transmission of multi-point data;

[0036] The coupling agent detection mechanism includes a control disk 11 fixedly connected to the connecting shaft, a scroll wheel 10 is rotatably connected to the connecting shaft, a rotating disk 12 is rotatably connected to the control disk 11, a gear ring 13 is arranged on the rotating disk 12, an arc bracket 14 is fixedly connected to the control disk 11, a stepping motor 15 is fixedly connected to the arc bracket 14, a matching gear 16 is coaxially fixedly connected to the output end of the stepping motor 15, and the matching gear 16 is meshed with the gear ring 13, three sliding grooves are equidistantly provided on the control disk 11, and the three sliding grooves are arranged radially along the control disk 11, a matching slide plate 17 is slidably connected in the sliding groove, a limit pin 18 is arranged on the matching slide plate 17, and a limit pin 18 is arranged on the rotating disk 12. Three arc grooves 19 are provided, and the limit pin 18 is slidably connected to the arc groove 19 on the corresponding side. The end of the matching slide plate 17 away from the axis of the control panel 11 is fixedly connected with a buffer shell 20, and a sliding plate 21 is slidably connected in the buffer shell 20. A buffer spring 22 and a No. 1 telescopic rod 23 are fixedly connected in the buffer shell 20. The buffer spring 22 is sleeved on the outside of the No. 1 telescopic rod 23. The output ends of the buffer spring 22 and the No. 1 telescopic rod 23 are fixedly connected to the sliding plate 21. A connecting shaft is fixedly connected to the sliding plate 21. An arc-shaped bonding plate 24 is fixedly connected to the end of the connecting shaft away from the sliding plate 21, and the arc-shaped bonding plate 24 is bonded to the inner wall of the rolling wheel 10;

[0037] Specifically, the main function of the coupling agent detection mechanism is to adjust the rotation resistance of the scroll wheel 10. According to the roughness of the skin surface of different patients, the rotation resistance of the scroll wheel 10 needs to be adjusted to a corresponding degree. The stepping motor 15 on the arc-shaped bracket 14 controls the rotation of the matching gear 16, and the matching gear 16 can drive the gear ring 13 meshing therewith to rotate, and the rotating disk 12 rotates accordingly. When the rotating disk 12 rotates, the three arc-shaped grooves 19 on the rotating disk 12 will cause the limit pin 18 sliding therein to move radially along the rotating disk 12, then the matching slide plate 17 slides in the sliding groove, and the distance between the arc-shaped bonding plate 24 and the inner wall of the scroll wheel 10 will change. When the arc-shaped bonding plate 24 contacts the scroll wheel 10, the relative pressure between the arc-shaped bonding plate 24 and the scroll wheel 10 will change, then the scroll wheel 1 The friction between the arc-shaped laminating plate 24 and the rolling wheel 10 changes accordingly with the pressure between the two. In actual use, the medical staff can pre-roll the patient's examination area. After the rolling wheel 10 is attached to the patient's skin, the medical staff moves the ultrasonic probe 7 to ensure that the rolling wheel 10 can roll. In order to better adapt to the skin conditions of different patients, a buffer shell 20 is provided on the matching slide plate 17, and a buffer spring 22 is provided in the buffer shell 20. When the buffer spring 22 is not fully compressed, the force on the arc-shaped laminating plate 24 is the deformation of the buffer spring 22 multiplied by the elastic coefficient of the buffer spring 22. When the buffer spring 22 is fully compressed, the force on the arc-shaped laminating plate 24 will be further increased. The advantage of this is that the force stroke of the arc-shaped laminating plate 24 will become larger, so as to facilitate better adjustment.

[0038] A photoelectric switch receiver 25 and a light source 26 are arranged in the cooperating enclosure 8, and a shielding folding plate 27 is arranged at the axis center of the rolling wheel 10;

[0039] Specifically, the photoelectric switch receiver 25 is electrically connected to the servo motor unit 5, and cooperates with the light source 26 in the enclosure 8 to continuously emit light. When the rolling wheel 10 rotates, the shielding folding plate 27 continuously rotates to shield the light, and the parameters received by the photoelectric switch receiver 25 will change;

[0040] When the pressure between the arc-shaped laminating plate 24 and the rolling wheel 10 is adjusted, since the friction force is affected by the friction coefficient and the pressure, the friction resistance encountered by the rolling wheel 10 when rotating can be increased with the adjustment. Since the coupling agent plays a lubricating role when being applied, the lubrication effect of the coupling agent and whether the application is uniform can be understood according to the rotation of the rolling wheel 10. When the rolling wheel 10 rotates, since the shielding folding plate 27 rotates with the connecting shaft, the light generated by the light source 26 is shielded. At this time, the value of the photoelectric switch receiver 25 will change, and the coupling agent nozzle 28 will continuously extrude the coupling agent. When the rolling wheel 10 stops rotating, the corresponding coupling agent nozzle 28 will stop extruding the coupling agent. In this way, the working state of the coupling agent nozzle 28 can be switched according to the coupling agent conditions on the skin of different parts of the patient. On the premise of ensuring that the coupling agent is applied in an appropriate amount to the patient's examination part, the amount of coupling agent used is also saved to avoid wasting medical resources.

[0041] Four coupling agent nozzles 28 are arranged on the matching enclosure 8, and two centralized ports 29 are fixedly connected to the side of the matching enclosure 8 away from the ultrasonic probe 7, and two connecting pipes are connected to the centralized port 29. A buffer box 30 is arranged at one end of the matching enclosure 8 close to the centralized port 29, and two reset springs 31 and a second telescopic rod 32 are fixedly connected in the buffer box 30. The reset spring 31 is sleeved on the outside of the second telescopic rod 32. A holding handle 33 is slidably connected in the buffer box 30, and the holding handle 33 is fixedly connected to the end of the reset spring 31 away from the buffer box 30 and the output end of the second telescopic rod 32. A button switch 34 is arranged in the buffer box 30, and a connecting plate 35 is fixedly connected to the bottom of the holding handle 33. A jack 36 and a coupling agent liquid inlet 37 are arranged on the connecting plate 35. The coupling agent liquid inlet 37 is connected to the liquid outlet through a hose, and the coupling agent liquid inlet 37 is connected to the four connecting pipes.

[0042] Specifically, the coupling agent nozzle 28 can extrude the coupling agent. Since a return spring 31 is provided in the buffer box 30, when the medical staff holds the holding handle 33 and presses the ultrasonic probe 7, the ultrasonic probe 7 can be attached to the patient's examination part. At this time, the return spring 31 is compressed, and the button switch 34 is turned on. The button switch 34 and the photoelectric switch receiver 25 are connected in parallel and in series with the servo motor unit 5. At this time, the servo motor unit 5 can be driven.

[0043] The working principle of the present invention is:

[0044] The sealed box 1 is used as a storage device for the coupling agent. The heating rod 4 provided in the sealed box 1 can heat the coupling agent, so that when the coupling agent is applied to the patient, the irritation of the coupling agent will be lower. Specifically, when the coupling agent in the sealed box 1 is pumped out, the threaded rod 6 can be rotated by the power of the servo motor unit 5. The rotation of the threaded rod 6 will cause the compression plate 3 threadedly connected thereto to move up and down. When the compression plate 3 moves down, the coupling agent in the sealed box 1 can be squeezed out.

[0045] The main function of the coupling agent detection mechanism is to adjust the rotation resistance of the scroll wheel 10. According to the roughness of the skin surface of different patients, the rotation resistance of the scroll wheel 10 needs to be adjusted to a corresponding degree. The stepping motor 15 on the arc-shaped bracket 14 controls the rotation of the matching gear 16, and the matching gear 16 can drive the gear ring 13 meshing therewith to rotate, and the rotating disk 12 rotates accordingly. When the rotating disk 12 rotates, the three arc-shaped grooves 19 on the rotating disk 12 will cause the limit pin 18 sliding therein to move radially along the rotating disk 12, then the matching slide plate 17 slides in the sliding groove, and the distance between the arc-shaped bonding plate 24 and the inner wall of the scroll wheel 10 will change. When the arc-shaped bonding plate 24 contacts the scroll wheel 10, the relative pressure between the arc-shaped bonding plate 24 and the scroll wheel 10 will change, then the scroll wheel 10 and The friction between the arc-shaped laminating plates 24 changes accordingly with the pressure between the two. In actual use, the medical staff can pre-roll the patient's examination area. After the rolling wheel 10 is attached to the patient's skin, the medical staff moves the ultrasonic probe 7 to ensure that the rolling wheel 10 can roll. In order to better adapt to the skin conditions of different patients, a buffer shell 20 is provided on the matching slide plate 17, and a buffer spring 22 is provided in the buffer shell 20. When the buffer spring 22 is not fully compressed, the force on the arc-shaped laminating plate 24 is the deformation of the buffer spring 22 multiplied by the elastic coefficient of the buffer spring 22. When the buffer spring 22 is fully compressed, the force on the arc-shaped laminating plate 24 will be further increased. The advantage of this is that the force stroke of the arc-shaped laminating plate 24 will become larger, so as to facilitate better adjustment.

[0046] The photoelectric switch receiver 25 is electrically connected to the servo motor unit 5, and cooperates with the light source 26 in the enclosure 8 to continuously emit light. When the rolling wheel 10 rotates, the shielding folding plate 27 rotates continuously to shield the light, and the parameters received by the photoelectric switch receiver 25 will change;

[0047] When the pressure between the arc-shaped laminating plate 24 and the rolling wheel 10 is adjusted, since the friction force is affected by the friction coefficient and the pressure, the friction resistance encountered by the rolling wheel 10 when rotating can be increased with the adjustment. Since the coupling agent plays a lubricating role when being applied, the lubrication effect of the coupling agent and whether the application is uniform can be understood according to the rotation of the rolling wheel 10. When the rolling wheel 10 rotates, since the shielding folding plate 27 rotates with the connecting shaft, the light generated by the light source 26 is shielded. At this time, the value of the photoelectric switch receiver 25 will change, and the coupling agent nozzle 28 will continuously extrude the coupling agent. When the rolling wheel 10 stops rotating, the corresponding coupling agent nozzle 28 will stop extruding the coupling agent. In this way, the working state of the coupling agent nozzle 28 can be switched according to the coupling agent conditions on the skin of different parts of the patient. On the premise of ensuring that the coupling agent is applied in an appropriate amount to the patient's examination part, the amount of coupling agent used is also saved to avoid wasting medical resources.

[0048] The coupling agent nozzle 28 can extrude the coupling agent. Since a return spring 31 is provided in the buffer box 30, when the medical staff holds the holding handle 33 and presses the ultrasonic probe 7, the ultrasonic probe 7 can be attached to the patient's examination part. At this time, the return spring 31 is compressed, and the button switch 34 is turned on. The button switch 34 and the photoelectric switch receiver 25 are connected in parallel and in series with the servo motor unit 5. At this time, the servo motor unit 5 can be driven.

[0049] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A coupling agent auxiliary device for ultrasound examination, characterized in that: include: A sealed box (1), wherein the top of the sealed box (1) is open, the bottom of the sealed box (1) is fixedly connected to a support leg (2), a compression plate (3) is slidably connected inside the sealed box (1), two heating rods (4) are fixedly connected to the bottom of the sealed box (1), the heating rods (4) penetrate the compression plate (3) and are slidably connected thereto, a servo motor unit (5) is fixedly connected to the bottom of the sealed box (1), a threaded rod (6) is rotatably connected to the bottom of the sealed box (1), an output end of the servo motor unit (5) penetrates the sealed box (1) and is coaxially fixedly connected to the threaded rod (6), the threaded rod (6) penetrates the compression plate (3) and is threadedly connected thereto, and a liquid outlet is provided on one side of the sealed box (1); An ultrasonic probe (7), wherein the outside of the ultrasonic probe (7) is fixedly connected to a matching enclosure (8), the matching enclosure (8) is provided with a plurality of rotation grooves (9), a connecting shaft is fixedly connected in the rotation groove (9), a rolling wheel (10) is provided on the connecting shaft, and a coupling agent detection mechanism is provided in the rolling wheel (10); The coupling agent detection mechanism comprises a control disk (11) fixedly connected to a connecting shaft, the rolling wheel (10) being rotatably connected to the connecting shaft, a rotating disk (12) being rotatably connected to the control disk (11), a toothed ring (13) being provided on the rotating disk (12), an arc-shaped bracket (14) being fixedly connected to the control disk (11), a stepping motor (15) being fixedly connected to the arc-shaped bracket (14), a matching gear (16) being coaxially fixedly connected to an output end of the stepping motor (15), the matching gear (16) being meshed with the toothed ring (13), three sliding grooves being equidistantly provided on the control disk (11), the three sliding grooves being radially arranged along the control disk (11), a matching slide plate (17) being slidably connected in the sliding groove, a limit pin (18) being provided on the matching slide plate (17), the rotating disk (11) 2) is provided with three arc grooves (19), the limit pin (18) is slidably connected to the arc groove (19) on the corresponding side, the end of the matching slide plate (17) away from the axis of the control plate (11) is fixedly connected to a buffer shell (20), a sliding plate (21) is slidably connected inside the buffer shell (20), a buffer spring (22) and a No. 1 telescopic rod (23) are fixedly connected inside the buffer shell (20), the buffer spring (22) is sleeved on the outside of the No. 1 telescopic rod (23), the output ends of the buffer spring (22) and the No. 1 telescopic rod (23) are fixedly connected to the sliding plate (21), the sliding plate (21) is fixedly connected to a connecting shaft, and the end of the connecting shaft away from the sliding plate (21) is fixedly connected to an arc-shaped bonding plate (24), and the arc-shaped bonding plate (24) is bonded to the inner wall of the rolling wheel (10).

2. The coupling agent auxiliary device for ultrasonic examination according to claim 1, characterized in that: A photoelectric switch receiver (25) and a light source (26) are arranged in the matching enclosure (8), and a shielding folding plate (27) is arranged at the axis center position of the rolling wheel (10).

3. The coupling agent auxiliary device for ultrasonic examination according to claim 2, characterized in that: Four coupling agent nozzles (28) are arranged on the matching enclosure (8), and two centralized ports (29) are fixedly connected to a side of the matching enclosure (8) away from the ultrasonic probe (7), and two connecting pipes are connected to the centralized ports (29).

4. The coupling agent auxiliary device for ultrasonic examination according to claim 3, characterized in that: A buffer box (30) is provided at one end of the matching enclosure (8) close to the central port (29), two return springs (31) and a second telescopic rod (32) are fixedly connected inside the buffer box (30), and the return spring (31) is sleeved on the outside of the second telescopic rod (32).

5. The coupling agent auxiliary device for ultrasonic examination according to claim 4, characterized in that: A holding handle (33) is slidably connected in the buffer box (30), and the holding handle (33) is fixedly connected to an end of the return spring (31) away from the buffer box (30) and an output end of the second telescopic rod (32). A button switch (34) is provided in the buffer box (30).

6. The coupling agent auxiliary device for ultrasonic examination according to claim 5, characterized in that: A connecting plate (35) is fixedly connected to the bottom of the holding handle (33), and a plug hole (36) and a coupling agent liquid inlet (37) are provided on the connecting plate (35), and the coupling agent liquid inlet (37) is connected to the liquid outlet via a hose.

7. The coupling agent auxiliary device for ultrasonic examination according to claim 6, characterized in that: The coupling agent liquid inlet (37) is connected to the four connecting pipes.

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