Ultrasonic apparatus foot switch

Abstract

The application relates to the technical field of foot switches, and discloses an ultrasonic equipment foot switch which comprises an outer protective box body, fixed seats are symmetrically arranged in the inner part of the outer protective box body, a pair of torsion spring shafts are rotationally connected between the two fixed seats, wire collecting wheels are fixedly connected to the outer walls of the two torsion spring shafts, fixing members are wound around the outer walls of the two wire collecting wheels, detection guns one and detection guns two are fixedly connected to the ends, away from the wire collecting wheels, of the two fixing members respectively, the detection guns one and the detection guns two are placed on the top of the outer protective box body, a foot plate one is arranged on one side of a T-shaped frame, a clamping assembly for limiting the foot plate one is arranged below the foot plate one, the clamping assembly is arranged, in the ultrasonic detection work, the opening state of the detection gun may need to be quickly switched according to different detection requirements, the existence of the clamping assembly enables an operator to quickly switch between different segmented positions without worrying about the unstable position of the foot plate one.

Description

Technical Field

[0001] This invention belongs to the field of foot switch technology: specifically, it relates to a foot switch for an ultrasonic device. Background Technology

[0002] A foot switch is a switch that controls the on / off state of a circuit by stepping on it. It is used in control circuits where the hands cannot reach, thus replacing the hands in operation.

[0003] By using the foot movements of staff to control the opening, closing, or status switching of certain functional modules (such as the detection gun) in the ultrasound equipment, the aim is to improve the convenience, accuracy, and efficiency of equipment operation, reduce the burden on staff's hands, and allow them to focus more on ultrasound detection or other operational tasks.

[0004] In the existing technology, when operating ultrasound equipment, if it is necessary to quickly switch between the on and off states of different detection guns, it is difficult for operators to accurately control the foot pedal position in the traditional way. This results in unsmooth switching and is prone to errors, affecting detection efficiency and accuracy. In order to keep the ultrasound equipment on continuously, the operator needs to continuously press the switch device, which restricts the operator's free movement and keeps the foot muscles in a state of tension, which can easily lead to foot fatigue.

[0005] Therefore, the present invention provides a foot switch for an ultrasonic device. Summary of the Invention

[0006] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The ultrasonic device foot switch of the present invention includes an outer protective housing. A fixed base is symmetrically fixedly installed inside the outer protective housing. A pair of torsion spring shafts are rotatably connected between the two fixed bases. A take-up reel is fixedly connected to the outer wall of each of the two torsion spring shafts. A fixing member is wound around the outer wall of each of the two take-up reels. Detection gun one and detection gun two are respectively fixedly connected to the ends of the two fixing members away from the take-up reels. Detection gun one and detection gun two are respectively placed on the top of the outer protective housing. A T-shaped frame is fixedly connected inside the outer protective housing. A sensing button one and a sensing button two are fixedly installed on one side of the T-shaped frame. A foot pedal one is provided on one side of the T-shaped frame. A locking component for limiting the movement of foot pedal one is provided below foot pedal one. Return components for resetting foot pedal one are provided on both sides of the outer protective housing.

[0008] Preferably, a balance shaft is fixedly connected to the inner wall of one end of the foot pedal, a balance plate is fixedly connected to one side of the foot pedal, a connecting frame is fixedly connected to one side of the balance plate, a hinge seat is hinged to the bottom of the connecting frame, and a pressing block is fixedly connected to one side of the hinge seat.

[0009] Preferably, the two sides of the extrusion block are fixedly connected with limiting blocks, the top of the outer protective box body is fixedly connected with limiting sliding seats in a symmetrical manner, the limiting blocks and the limiting sliding seats are in sliding connection and are matched with each other, and the outer wall of the balance shaft is rotatably connected with a fixing frame, and the fixing frame is fixedly installed in the inner portion of the outer protective box body.

[0010] Preferably, the clamping component comprises a clamping block, the two sides of the foot pedal one are fixedly connected with side connecting pieces, the side connecting pieces are fixedly connected with the clamping block, the top of the outer protective box body is fixedly connected with a lower limiting plate in a symmetrical manner, the side surface of the lower limiting plate is fixedly connected with a connecting spring, one side of the connecting spring is fixedly connected with an upper limiting plate, and three clamping grooves are formed in the surface of the upper limiting plate.

[0011] Preferably, the top of the outer protective box body is fixedly connected with a protective frame in a symmetrical manner, the inner side of the protective frame is attached to the two sides of the foot pedal one, an inner groove is formed in the inner wall of the protective frame, and the side connecting piece is in sliding connection with the inner groove.

[0012] Preferably, the return component comprises two extrusion blocks, the two extrusion blocks are located between the upper limiting plate and the lower limiting plate, a rotating rod is fixedly connected between the two extrusion blocks, the bottom of the foot pedal one is fixedly connected with a torsional spring two, one end of the torsional spring two away from the foot pedal one is fixedly connected with the upper surface of the protective frame, and one side of the extrusion block is provided with a driving component.

[0013] Preferably, the driving component comprises two receiving plates, the receiving plates are fixedly connected to the two sides of the outer protective box body, the top of each receiving plate is fixedly connected with a hinged seat two, the inner wall of each hinged seat two is hingedly connected with a foot pedal two, one end of each foot pedal two is fixedly connected with a rack plate, the teeth of the rack plate are in meshing connection with a gear, and the gear is fixedly connected to the two ends of the rotating rod.

[0014] Preferably, the bottom of each foot pedal two is fixedly connected with a torsional spring one, and one end of the torsional spring one away from the foot pedal two is fixedly connected with the top of the receiving plate.

[0015] Preferably, the top of the foot pedal one and the two foot pedals two are fixedly connected with anti-skid blocks.

[0016] Preferably, the top of the outer protective box body is fixedly connected with a controller, and a pair of light bulbs are arranged above the controller.

[0017] The beneficial effects of the application are as follows:

[0018] 1. The ultrasonic equipment foot pedal switch can realize three different working modes of detecting gun one alone, detecting gun one and detecting gun two simultaneously, and detecting gun two alone through segmented control, and the flexibility makes the device adapt to various ultrasonic detection requirements.

[0019] 2. The ultrasonic equipment foot switch provided by the application, through the setting of the clamping component, in the ultrasonic detection work, the opening state of the detection gun may need to be quickly switched according to different detection requirements, the existence of the clamping component enables the operator to quickly switch between different segmented positions without worrying about the unstable position of the foot pedal one, and enables the staff to not continuously press the foot pedal one when controlling the start of the ultrasonic equipment with the feet, when it is needed to switch to different working modes, only the foot pedal one is pressed to the corresponding segmented position, the clamping component will automatically fix it, the operation is more convenient, in addition, since the clamping component provides a clear limiting feeling, the operator can more accurately grasp the pressing force and amplitude in the operation process, and the error caused by inaccurate operation is reduced.

[0020] 3. The ultrasonic equipment foot switch provided by the application, when it is needed to close the entire ultrasonic equipment, the staff only needs to press any one of the foot pedals two on both sides of the foot pedal, after the foot pedal two is pressed, the rack plate is moved, and then the teeth of the rack plate and the gear are engaged, the gear is driven to rotate, when the gear rotates, the extrusion block is driven to rotate through the rotating rod, in the rotating process of the extrusion block, the protruding end of the extrusion block extrudes the upper limiting plate, so that the upper limiting plate moves, with the movement of the upper limiting plate, the clamping groove loses the limiting effect on the clamping block; at this time, under the action of the torsional spring two, the foot pedal one is automatically reset, so that the closing operation of the ultrasonic equipment is realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below in combination with the drawings.

[0022] Figure 1 is the overall perspective view of the application;

[0023] Figure 2 is the internal structure schematic view of the outer protective box in the application;

[0024] Figure 3 is the structure schematic view of the extrusion block in the application;

[0025] Figure 4 is the structure schematic view of the balance plate in the application;

[0026] Figure 5 is the structure schematic view of the foot pedal one in the application;

[0027] Figure 6 is the structure schematic view of the protective frame in the application;

[0028] Figure 7 is the structure schematic view of the clamping block in the application;

[0029] Figure 8 is the structure schematic view of the foot pedal two in the application.

[0030] In the figure: 1, the outer protective box body; 2, detection gun one; 3, detection gun two; 4, fixing piece; 5, take-up wheel; 6, fixed seat; 7, torsion spring shaft; 8, T-shaped frame; 9, induction button one; 10, induction button two; 11, extrusion block; 12, foot pedal one; 13, balance shaft; 14, fixed frame; 15, balance plate; 16, connecting frame; 17, hinged seat one; 18, limit block; 19, limit sliding seat; 20, protective frame; 21, side connecting piece; 22, clamping block; 23, upper limit plate; 24, lower limit plate; 25, clamping groove; 26, connecting spring; 27, extrusion block; 28, rotating rod; 29, gear; 30, bearing plate; 31, hinged seat two; 32, foot pedal two; 33, rack plate; 34, anti-skid block; 35, torsion spring one; 36, torsion spring two; 37, controller; 38, light bulb. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0032] As Figures 1 to 8 shown, the present application provides a technical solution: an ultrasonic equipment foot switch, comprising an outer protective box body 1, the inside of the outer protective box body 1 is symmetrically fixedly installed with fixed seats 6, a pair of torsion spring shafts 7 are rotationally connected between the two fixed seats 6, the outer walls of the two torsion spring shafts 7 are fixedly connected with take-up wheels 5, the outer walls of the two take-up wheels 5 are wound with fixing pieces 4, the ends of the two fixing pieces 4 away from the take-up wheels 5 are fixedly connected with detection guns one 2 and detection guns two 3 respectively, the detection guns one 2 and the detection guns two 3 are placed on the top of the outer protective box body 1 respectively, the inside of the outer protective box body 1 is fixedly connected with a T-shaped frame 8, the side of the T-shaped frame 8 is fixedly installed with induction button one 9 and induction button two 10, the side of the T-shaped frame 8 is provided with a foot pedal one 12, the lower part of the foot pedal one 12 is provided with a clamping assembly for limiting the foot pedal one 12, the two sides of the outer protective box body 1 are provided with a return assembly for resetting the foot pedal one 12.

[0033] When working: In the specific use of the device, the operator needs to detect in advance whether the working state of the detection gun 2 and the detection gun 3 is normal, and confirm that the power connection is correct, the sensing button 9 is electrically connected with the detection gun 2, and the sensing button 10 is electrically connected with the detection gun 3. By touching the two sensing buttons, the on-off state of the corresponding detection gun can be controlled. The operator only needs to step on the foot pedal 12 with one foot. The foot pedal 12 will present a segmented downward pressing characteristic during being pressed down. After completing a segment of downward pressing, the detent assembly will fix the foot pedal 12 at the current position, and the operator can clearly feel the limit feeling. When the foot pedal 12 is pressed down to the first segment, the sensing button 9 is touched, and only the detection gun 2 is turned on at this time. If the foot pedal 12 is continuously pressed down to the second segment, the sensing button 9 and the sensing button 10 are touched at the same time, and the detection gun 2 and the detection gun 3 are turned on at the same time. If the foot pedal 12 is continuously pressed down to the third segment, the sensing button 10 is touched alone, and only the detection gun 3 is turned on at this time. The operator can clearly perceive each operation stage, so as to accurately control the on-off state of the detection gun. When the operator pulls the detection gun 2 and the detection gun 3 to the easy position for detection, the two take-up wheels 5 can automatically rotate and pay out the line, which is suitable for any working environment. When the detection gun 2 and the detection gun 3 are returned to the original position after use, the two take-up wheels 5 automatically rotate in the reverse direction under the action of the torsion spring shaft 7. When the foot pedal 12 is in any segment position for ultrasonic work, the foot pedal 12 can be restored to the original position by the return assembly at one time. After the foot pedal 12 is restored to the original position, the detection gun 2 and the detection gun 3 are in the off state.

[0034] Through the above embodiment, through segmented control, three different working modes of the detection gun 2 being turned on alone, the detection gun 2 and the detection gun 3 being turned on at the same time, and the detection gun 3 being turned on alone are realized. The flexibility makes the device adapt to various ultrasonic detection needs. Through the detent assembly, the on-off state of the detection gun may need to be quickly switched according to different detection needs during ultrasonic detection work. The existence of the detent assembly enables the operator to quickly switch between different segmented positions without worrying about the unstable position of the foot pedal 12. When the operator controls the start of the ultrasonic equipment with the foot, the foot does not need to continuously press down the foot pedal 12. When it is needed to switch to different working modes, the foot pedal 12 only needs to be pressed down to the corresponding segmented position, and the detent assembly will automatically fix it. The operation is more convenient. In addition, since the detent assembly provides a clear limit feeling, the operator can more accurately grasp the pressing force and amplitude during operation, reducing errors caused by inaccurate operation.

[0035] As Figures 3 to 4As shown, one end of the footboard one 12 is fixedly connected with a balance shaft 13, one side of the footboard one 12 is fixedly connected with a balance plate 15, one side of the balance plate 15 is fixedly connected with a connecting frame 16, the bottom of the connecting frame 16 is hingedly connected with a hinge seat one 17, one side of the hinge seat one 17 is fixedly connected with the extrusion block 11.

[0036] When the staff steps on the footboard one 12, the footboard one 12 will rotate downward around the balance shaft 13 as the center line, at the same time, the balance plate 15 at the other end will be raised. When the balance plate 15 is raised, it will drive the connecting frame 16 and the hinge seat one 17 to rise. Because the hinge seat one 17 and the connecting frame 16 can automatically hinge to adapt to changes, the extrusion block 11 can move vertically upward. During the vertical upward movement of the extrusion block 11, different touch situations will occur: one side will first touch the sensing button one 9, causing the detection gun one 2 to open; when the extrusion block 11 continues to rise, it will touch the sensing button one 9 and the sensing button two 10 at the same time, causing the detection gun one 2 and the detection gun two 3 to open at the same time; when the extrusion block 11 rises again, it will only touch the sensing button two 10 alone, causing the detection gun one 2 to be turned off and the detection gun two 3 to be turned on. The height of the upward movement of the extrusion block 11 depends on the force of the foot stepping on the footboard one 12, and the different opening states of the detection gun one 2 and the detection gun two 3 are flexibly controlled, so that the device can adapt to various ultrasonic detection needs.

[0037] As shown in the figure, Figure 4 The two sides of the extrusion block 11 are fixedly connected with limit blocks 18, the top of the outer protective box body 1 is fixedly and symmetrically installed with limit sliding seats 19, the limit blocks 18 and the limit sliding seats 19 are slidingly connected and mutually adapted, the outer wall of the balance shaft 13 is rotatably connected with a fixed frame 14, and the fixed frame 14 is fixedly installed in the inner part of the outer protective box body 1.

[0038] During work, the staff controls the vertical upward movement of the extrusion block 11 by stepping on the footboard one 12. When the extrusion block 11 rises, it is ensured that it can only move in the vertical direction by the cooperation of the limit blocks 18 and the limit sliding seats 19, so as to realize precise touch sensing with the sensing button one 9 and the sensing button two 10. When the extrusion block 11 moves vertically upward, adaptive hinging rotation will occur between the connecting frame 16 and the hinge seat one 17 to compensate for the change in angle caused by movement, so as to ensure smooth and precise movement during the entire process.

[0039] As shown in the figure, Figures 5 to 8 The clamping assembly includes a clamping block 22, the two sides of the footboard one 12 are fixedly connected with side connecting pieces 21, the side connecting pieces 21 are fixedly connected between the clamping block 22, the top of the outer protective box body 1 is fixedly and symmetrically connected with a lower limit plate 24, the side surface of the lower limit plate 24 is fixedly connected with a connecting spring 26, one side of the connecting spring 26 is fixedly connected with an upper limit plate 23, and three clamping grooves 25 are formed in the surface of the upper limit plate 23.

[0040] When working: the upper limit plate 23 and the lower limit plate 24 are both arc-shaped, and the two cooperate to form an arc-shaped groove. When the staff steps on the pedal one 12, it will drive the clamping block 22 to enter the arc-shaped groove. Since the lower limit plate 24 is fixed in position, and the upper limit plate 23 is connected to the lower limit plate 24 through the connecting spring 26, the clamping block 22 will extrude the upper limit plate 23 after entering the arc-shaped groove, so as to expand the arc-shaped groove. In this process, the connecting spring 26 is stretched. When one end of the clamping block 22 is clamped into the inner wall of the first clamping groove 25, if the pedal one 12 is released at this time, the pedal one 12 will be fixed in position due to the cooperation of the clamping block 22 and the clamping groove 25. At this time, the extrusion block 11 just touches the sensing button one 9, so that the detection gun one 2 is turned on. If the staff continues to step on the pedal one 12 and gives more pressure, the clamping block 22 will overcome the elastic force of the connecting spring 26 and continue to move in the arc-shaped groove, and then can enter the second clamping groove 25. When the clamping block 22 is clamped into the second clamping groove 25, the extrusion block 11 will touch the sensing button one 9 and the sensing button two 10 at the same time, so that the detection gun one 2 and the detection gun two 3 are turned on at the same time. If the staff further increases the stepping force, the clamping block 22 will continue to move and be clamped into the third clamping groove 25. At this time, the extrusion block 11 only touches the sensing button two 10, causing the detection gun one 2 to be turned off and the detection gun two 3 to be turned on. Through the design of the clamping assembly, the pedal one 12 is stably stopped at different positions, and the extrusion block 11 accurately touches different sensing buttons, realizing flexible control of the detection gun one 2 and the detection gun two 3.

[0041] The existence of the clamping assembly enables the operator to quickly switch between different segmented positions without worrying about the unstable position of the pedal one 12. When the staff controls the start of the ultrasonic equipment by stepping, the staff does not need to continuously press the pedal one 12, and the staff can freely move with the detection gun one 2 and the detection gun two 3.

[0042] As shown in Figures 5 to 6 The top of the outer protective box body 1 is symmetrically fixedly connected with a protective frame 20, the inner side of the protective frame 20 is attached to the two sides of the pedal one 12, the inner wall of the protective frame 20 is provided with an inner groove, and the side connecting piece 21 is slidingly connected with the inner groove.

[0043] When working: through the set of protective frame 20, the operation of the staff stepping on the pedal one 12 can be effectively limited, when the staff steps on the pedal one 12, the protective frame 20 will constrain the two sides of the pedal one 12, so that it can only rotate according to the predetermined track, that is, with the balance shaft 13 as the axis, prevent the pedal one 12 from shaking left and right or deviating during stepping, ensure the stability and accuracy of the whole operation process; at the same time, the side connecting piece 21 is slidably connected with the inner groove of the inner wall of the protective frame 20, further assisting the pedal one 12 to realize stable and smooth rotation, ensuring that the clamping block 22 can smoothly enter the arc-shaped groove formed by the upper limiting plate 23 and the lower limiting plate 24, and accurately clamped into different clamping grooves 25.

[0044] As shown in Figures 7 to 8 , the reset assembly includes two extrusion blocks 27, two extrusion blocks 27 are located between the upper limiting plate 23 and the lower limiting plate 24, and the two extrusion blocks 27 are fixedly connected with a rotating rod 28, the bottom of the pedal one 12 is fixedly connected with a torsional spring two 36, the end of the torsional spring two 36 away from the pedal one 12 is fixedly connected with the upper surface of the protective frame 20, and one side of the extrusion block 27 is provided with a driving assembly.

[0045] When working: when the whole ultrasonic equipment is used, the pedal one 12 needs to be reset so that the detection gun one 2 and the detection gun two 3 are in a disconnected state, at this time the staff can step on the driving assembly, the driving assembly will drive the extrusion block 27 to rotate, because the extrusion block 27 is in the shape of "water droplet", the extrusion block 27 will forcibly increase the distance between the arc-shaped groove of the upper limiting plate 23 and the lower limiting plate 24 when rotating, so that the clamping block 22 is no longer clamped into one of the clamping grooves 25, the pedal one 12 is automatically reset to the original position under the action of the torsional spring two 36, at this time the ultrasonic equipment is in a disconnected state.

[0046] As shown in Figure 5 and Figure 8 , the driving assembly includes two receiving plates 30, the receiving plates 30 are fixedly connected to the two sides of the outer protective box body 1, the top of the receiving plate 30 is fixedly connected with a hinge seat two 31, the inner wall of the hinge seat two 31 is hingedly connected with a pedal two 32, one end of the pedal two 32 is fixedly connected with a rack plate 33, the teeth of the rack plate 33 are meshed with a gear 29, and the gear 29 is fixedly connected to the two ends of the rotating rod 28.

[0047] When working: when the entire ultrasonic device needs to be closed, the staff only needs to step on any one of the two second foot pedals 32, after the second foot pedal 32 is pressed down, the rack plate 33 is driven to move, and then the rack plate 33 is meshed with the gear teeth of the gear 29, the gear 29 is driven to rotate, when the gear 29 rotates, the extrusion block 27 is driven to rotate through the rotating rod 28, during the rotation of the extrusion block 27, the protruding end of the extrusion block 27 extrudes the upper limiting plate 23, so that the upper limiting plate 23 moves, along with the movement of the upper limiting plate 23, the clamping groove 25 loses the limiting effect on the clamping block 22; at this time, under the action of the second torsional spring 36, the first foot pedal 12 is automatically reset, so that the closing operation of the ultrasonic device is realized.

[0048] As shown in Figure 8 The bottom of the second foot pedal 32 is fixedly connected with the first torsional spring 35, and the end, away from the second foot pedal 32, of the first torsional spring 35 is fixedly connected with the top of the receiving plate 30.

[0049] When working: through the setting of the first torsional spring 35, after the second foot pedal 32 loses the pressing force, the second foot pedal 32 can be automatically reset under the action of the first torsional spring 35, during the resetting of the second foot pedal 32, the rack plate 33 can be meshed with the gear 29 again, so that the extrusion block 27 is reversely rotated and reset, and the upper limiting plate 23 and the lower limiting plate 24 return to the initial state.

[0050] As shown in Figures 7 to 8 The top of the first foot pedal 12 and the two second foot pedals 32 are fixedly connected with the anti-skid blocks 34.

[0051] When working: through the setting of the anti-skid blocks 34, the friction between the feet of the staff and the first foot pedal 12 and the two second foot pedals 32 can be effectively increased, so that the smoothness and accuracy of the entire device operation process are ensured.

[0052] As shown in Figures 2 to 3 The top of the outer protective box body 1 is fixedly connected with the controller 37, and a pair of light bulbs 38 are arranged above the controller 37.

[0053] When working: the light bulbs 38 can prompt whether the detection gun 1 and the detection gun 2 are in the working state through the lighting mode, the working conditions of the detection gun 1 and the detection gun 2 are directly understood, and the working efficiency and the operation accuracy are improved.

[0054] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A foot switch for an ultrasonic device, comprising an outer protective housing, characterized in that: The outer protective housing has symmetrically fixed mounting bases inside. A pair of torsion spring shafts are rotatably connected between the two fixed bases. A take-up reel is fixedly connected to the outer wall of each of the two torsion spring shafts. A fixing member is wound around the outer wall of each of the two take-up reels. Detection gun one and detection gun two are fixedly connected to the ends of the two fixing members away from the take-up reels, respectively. Detection gun one and detection gun two are placed on the top of the outer protective housing. A T-shaped frame is fixedly connected inside the outer protective housing. A sensor button one and a sensor button two are fixedly installed on one side of the T-shaped frame. Sensor button one is electrically connected to detection gun one, and sensor button two is electrically connected to detection gun two. A foot pedal one is set on one side of the T-shaped frame. A locking component for limiting the foot pedal one is set below the foot pedal one. Return components for resetting the foot pedal one are set on both sides of the outer protective housing. The locking assembly includes a locking block, and side connectors are fixedly connected to both sides of the foot pedal. The side connectors are fixedly connected to the locking block. A lower limit plate is symmetrically fixedly connected to the top of the outer protective box. A connecting spring is fixedly connected to the side of the lower limit plate. An upper limit plate is fixedly connected to one side of the connecting spring. Three slots are opened on the surface of the upper limit plate. A balance shaft is fixedly connected to the inner wall of one end of the foot pedal, a balance plate is fixedly connected to one side of the foot pedal, a connecting frame is fixedly connected to one side of the balance plate, a hinge seat is hinged to the bottom of the connecting frame, and a pressing block is fixedly connected to one side of the hinge seat.

2. The foot switch for an ultrasonic device according to claim 1, characterized in that: Limit blocks are fixedly connected to both sides of the extrusion block, and limit slides are symmetrically fixedly installed on the top of the outer protective box. The limit blocks and limit slides are slidably connected and mutually adapted. A fixed frame is rotatably connected to the outer wall of the balance shaft, and the fixed frame is fixedly installed inside the outer protective box.

3. The foot switch for an ultrasonic device according to claim 2, characterized in that: The top of the outer protective box is symmetrically fixed with protective frames. The inner side of the protective frame fits against both sides of the foot pedal. The inner wall of the protective frame has an inner groove, and the side connector is slidably connected to the inner groove.

4. The foot switch for an ultrasonic device according to claim 3, characterized in that: The return assembly includes two push blocks, which are located between the upper limit plate and the lower limit plate respectively. A rotating rod is fixedly connected between the two push blocks. A torsion spring is fixedly connected to the bottom of the foot pedal one. The end of the torsion spring two away from the foot pedal one is fixedly connected to the upper surface of the protective frame. A drive assembly is provided on one side of the push blocks.

5. A foot switch for an ultrasonic device according to claim 4, characterized in that: The drive assembly includes two support plates, which are fixedly connected to both sides of the outer housing. A hinge seat 2 is fixedly connected to the top of each support plate. A foot pedal 2 is hinged to the inner wall of each hinge seat 2. A rack plate is fixedly connected to one end of each foot pedal 2. The teeth of the rack plate are engaged with gears, which are fixedly connected to both ends of the rotating rod.

6. A foot switch for an ultrasonic device according to claim 5, characterized in that: Each foot pedal 2 has a torsion spring 1 fixedly connected to its bottom. The end of the torsion spring 1 away from the foot pedal 2 is fixedly connected to the top of the support plate.

7. A foot switch for an ultrasonic device according to claim 6, characterized in that: Anti-slip blocks are fixedly connected to the top of both foot pedal one and the two foot pedals two.

8. A foot switch for an ultrasonic device according to claim 7, characterized in that: A controller is fixedly connected to the top of the outer casing, and a pair of light bulbs are installed above the controller.

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