Anti-loosening ultrasonic transducer structure

Abstract

The utility model relates to the technical field of ultrasonic equipment, and discloses an anti-loosening ultrasonic transducer structure which comprises a lower driver and an upper driver, a screw hole is formed in the middle of the interior of the lower driver, a counter bore is formed in the middle of the interior of the upper driver, and the lower driver and the upper driver are fixedly connected through screws. Two piezoelectric ceramics are further fixedly installed between the lower driver and the upper driver, connecting ends are fixedly installed on the outer sides of the two piezoelectric ceramics respectively, and a plurality of sliding grooves are formed in the upper end of the upper driver. After a lower driver, piezoelectric ceramics, a connecting end and an upper driver are fixedly connected through a screw, a plurality of groups of second fixing seats on the inner side of an adjusting ring and a positioning groove synchronously move a plurality of limiting strips at the upper end of the upper driver towards the center point of a counter bore by rotating the adjusting ring, so that the radial movement of the screw is limited through the plurality of limiting strips; therefore, the anti-loosening effect of the screw is achieved, and the use stability of the transducer is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic equipment technology, and in particular to an anti-loosening ultrasonic transducer structure. Background Technology

[0002] An ultrasonic transducer is an energy conversion device that can convert alternating electrical signals within the ultrasonic frequency range into acoustic signals, or vice versa. An ultrasonic transducer mainly consists of a piezoelectric ceramic disc transducer, a shell, and other structures. The piezoelectric ceramic is the core component of the transducer, which realizes the conversion between electrical energy and mechanical energy through the piezoelectric effect. When an alternating voltage is applied to the piezoelectric ceramic, it will generate mechanical vibration, thereby generating ultrasonic waves.

[0003] In some ultrasonic transducers, the connection between the housing or the front and rear actuators and the piezoelectric ceramic is usually fixed with screws. While screw fixing facilitates transducer maintenance, over long-term use, the ultrasonic transducer generates high-frequency vibrations during operation. These vibrations act on the screw connection points for a long time, which can easily cause the screws to gradually loosen. In addition, material expansion or contraction due to temperature changes, as well as insufficient torque during installation, can also cause the fixing screws to loosen. Loose screws can lead to unstable connections between internal components of the transducer, thereby affecting the transmission efficiency and directionality of sound waves. In severe cases, it may even lead to transducer failure or damage. Utility Model Content

[0004] The purpose of this invention is to provide an anti-loosening ultrasonic transducer structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An anti-loosening ultrasonic transducer structure includes a lower driver and an upper driver. The lower driver has a screw hole in its center, and the upper driver has a countersunk hole in its center. The lower driver and the upper driver are fixedly connected by screws. Two piezoelectric ceramics are also fixedly installed between the lower driver and the upper driver, and connecting ends are fixedly installed on the outer sides of the two piezoelectric ceramics respectively. The upper driver has multiple sliding grooves at its upper end, and limit strips are slidably connected in the sliding grooves. The upper driver also has a rotating groove at its upper end, and the rotating groove is connected to the cavity of the multiple sliding grooves. An adjusting ring is rotatably installed in the rotating groove.

[0007] As a further preferred embodiment of this utility model, the plurality of said grooves are arranged in a ring around the countersunk hole at the upper end of the upper driver.

[0008] As a further preferred embodiment of this utility model, a first fixing seat is fixedly installed at the bottom of the slide groove near the countersunk hole. A shaft groove is opened in the middle of the first fixing seat. A slide groove is opened at the upper end of the upper driver, and the first fixing seat is provided in the slide groove, which can realize the sliding connection of the limiting strip and provide limiting conditions for the radial movement of the limiting strip.

[0009] As a further preferred embodiment of this utility model, a limiting groove is provided on the inner side of the rotating groove.

[0010] As a further preferred embodiment of this utility model, a T-shaped through groove is provided in the limiting strip, and a connecting shaft is fixedly installed in the T-shaped through groove. The T-shaped through groove in the limiting strip passes through the first fixed seat, and one end of the connecting shaft is clamped in the shaft groove and can slide. A compression spring is also fitted on the outside of the connecting shaft. One end of the compression spring abuts against one side of the limiting strip, and the other end of the compression spring abuts against one side of the first fixed seat. The limiting strip is slidably connected in the sliding groove, and can be moved with the adjusting ring to realize the movement of the limiting strip. Thus, the screw end placed in the countersunk hole is limited by one end of multiple limiting strips.

[0011] As a further preferred embodiment of this utility model, a fixing ring is fixedly installed on the inner side of the adjusting ring, and multiple second fixing seats are also fixedly installed on the inner side of the adjusting ring above the fixing ring. A positioning groove is opened on one side of the second fixing seat, and the inner side of the fixing ring is rotatably connected in the limiting groove. The positioning groove is engaged with one end of the corresponding limiting strip. After the adjusting ring is rotatably installed in the rotating groove through the fixing ring, the multiple positioning grooves can be used to realize the synchronous movement of multiple limiting strips, so as to quickly limit the screw and prevent the lower driver, piezoelectric ceramic, connecting end and upper driver from becoming loose.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, after the lower actuator, piezoelectric ceramic, connecting end and upper actuator are fixedly connected by screws, the adjustment ring can be rotated so that the multiple sets of second fixing seats on the inner side of the adjustment ring and the positioning groove can move the multiple limiting strips on the upper end of the upper actuator toward the center point of the countersunk hole in a synchronous manner. This restricts the radial movement of the screws by the multiple limiting strips, thereby achieving the function of preventing the screws from loosening and ensuring the stability of the transducer. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled main structure of this utility model;

[0016] Figure 3This is a schematic diagram of the disassembled structure of the upper actuator and the adjusting ring of this utility model;

[0017] Figure 4 This is a cross-sectional view of the upper actuator and the limiting strip of this utility model;

[0018] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Lower actuator; 2. Piezoelectric ceramic; 3. Connecting end; 4. Upper actuator; 5. Screw hole; 6. Countersunk hole; 7. Slide groove; 8. Limiting strip; 9. Rotary groove; 10. Adjusting ring; 11. First fixed seat; 12. Shaft groove; 13. Connecting shaft; 14. Compression spring; 15. Limiting groove; 16. Fixed ring; 17. Second fixed seat; 18. Positioning groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-5 As shown, the present invention provides an anti-loosening ultrasonic transducer structure, including a lower driver 1 and an upper driver 4. The lower driver 1 has a screw hole 5 in the middle, and the upper driver 4 has a countersunk hole 6 in the middle. The lower driver 1 and the upper driver 4 are fixedly connected by screws. Two piezoelectric ceramics 2 are also fixedly installed between the lower driver 1 and the upper driver 4, and connecting ends 3 are fixedly installed on the outer sides of the two piezoelectric ceramics 2 respectively. The upper driver 4 has multiple sliding grooves 7 at its upper end, and limit strips 8 are slidably connected in the sliding grooves 7. The upper driver 4 also has a rotating groove 9 at its upper end, and the rotating groove 9 is connected to the cavity of the multiple sliding grooves 7. An adjusting ring 10 is rotatably installed in the rotating groove 9.

[0022] like Figures 2-5As shown, multiple sliding grooves 7 are arranged in a ring around the countersunk hole 6 at the upper end of the upper driver 4. A first fixing seat 11 is fixedly installed at the bottom of the sliding groove 7 near the countersunk hole 6. A shaft groove 12 is formed in the middle of the first fixing seat 11. The sliding groove 7 is formed at the upper end of the upper driver 4, and the first fixing seat 11 is set in the sliding groove 7, which can realize the sliding connection of the limiting strip 8 and provide the limiting condition for the radial movement of the limiting strip 8. A limiting groove 15 is formed on the inner side of the rotating groove 9. A T-shaped through groove is formed in the limiting strip 8, and a fixed part is installed in the T-shaped through groove. The connecting shaft 13 and the T-shaped through groove in the limiting strip 8 are inserted into the first fixed seat 11. One end of the connecting shaft 13 is clamped in the shaft groove 12 and can slide. A compression spring 14 is also fitted on the outside of the connecting shaft 13. One end of the compression spring 14 abuts against one side of the limiting strip 8, and the other end of the compression spring 14 abuts against one side of the first fixed seat 11, so that the limiting strip 8 is slidably connected in the slide groove 7. It can move the limiting strip 8 in conjunction with the adjusting ring 10, thereby limiting the end of the screw placed in the countersunk hole 6 by means of multiple limiting strips 8.

[0023] like Figures 3-5 As shown, a fixing ring 16 is fixedly installed on the inner side of the adjusting ring 10. Multiple second fixing seats 17 are also fixedly installed on the inner side of the adjusting ring 10 above the fixing ring 16. A positioning groove 18 is opened on one side of the second fixing seat 17. The inner side of the fixing ring 16 is rotatably connected in the limiting groove 15. The positioning groove 18 is snapped into one end of the corresponding limiting strip 8. After the adjusting ring 10 is rotatably installed in the rotating groove 9 through the fixing ring 16, the multiple positioning grooves 18 can be used to realize the synchronous movement of multiple limiting strips 8, so as to quickly limit the screw and prevent the lower driver 1, piezoelectric ceramic 2, connecting end 3 and upper driver 4 from becoming loose.

[0024] It should be noted that this utility model is an anti-loosening ultrasonic transducer structure. When assembling the lower driver 1, piezoelectric ceramic 2, connecting end 3, and upper driver 4, the two connecting ends 3 can be stacked together and placed between the lower driver 1 and the upper driver 4. Then, screws are passed through the countersunk hole 6 and threaded into the screw hole 5 to complete the fixed connection of the lower driver 1, piezoelectric ceramic 2, connecting end 3, and upper driver 4. Subsequently, the adjusting ring 10 is manually rotated at a certain angle, so that the multiple second fixing seats 17 on the inner side of the adjusting ring 10 rotate synchronously with the adjusting ring 10, and the second fixing seats are used to fix the upper driver 4. The slope between one side of the fixed seat 17 and the adjusting ring 10 presses one end of the corresponding limiting strip 8 toward the center point of the countersunk hole 6, thereby causing the connecting shaft 13 inside the limiting strip 8 to move in the shaft groove 12. The T-shaped through groove inside the limiting strip 8 compresses the compression spring 14 toward the first fixed seat 11, thereby causing the limiting strip 8 to slide in the sliding groove 7 and causing the end of the limiting strip 8 away from the adjusting ring 10 to move above the screw, thereby limiting the radial displacement of the screw and thus limiting the axial movement of the screw. Simultaneously, the other end of the limiting strip 8 is inserted into the positioning groove 18, and the force of the compressed spring 14 ensures the stability of the adjustment position of the limiting strip 8.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A l oose-tight ultrasonic transducer structure, c h a r a c t e r i z e d in that: The utility model provides a kind of upper and lower driver, including lower driver (1) and upper driver (4), the middle part of the lower driver (1) is provided with screw hole (5), the middle part of the upper driver (4) is provided with counterbore (6), the lower driver (1) and upper driver (4) are fixedly connected by screw, and two piezoelectric ceramics (2) are further fixedly installed between the lower driver (1) and upper driver (4), and two the connecting end (3) is respectively fixedly installed outside piezoelectric ceramic (2), the upper end of the upper driver (4) is provided with multiple sliding slot (7), the sliding slot (7) is slidably connected with limiting strip (8), the upper end of the upper driver (4) is further provided with rotation slot (9), and the rotation slot (9) and multiple sliding slot (7) are communicated, and the rotation slot (9) is rotatably installed with adjusting ring (10).

2. The anti-looseness ultrasonic transducer structure according to claim 1, characterized in that: Multiple the sliding slot (7) is arranged in the upper end of the upper driver (4) with counterbore (6) as center annularly.

3. The anti-looseness ultrasonic transducer structure according to claim 1, characterized in that: The first fixed seat (11) is fixedly installed in the bottom of the sliding slot (7) close to the counterbore (6), and the middle part of the first fixed seat (11) is provided with shaft slot (12).

4. The anti-looseness ultrasonic transducer structure according to claim 1, characterized in that: The limiting slot (15) is formed in the inner side of the rotation slot (9).

5. The anti-looseness ultrasonic transducer structure according to claim 3, characterized in that: T-shaped through slot is formed in the limiting strip (8), and connecting shaft (13) is fixedly installed in the T-shaped through slot, the T-shaped through slot in the limiting strip (8) is inserted on the first fixed seat (11), one end of the connecting shaft (13) is clamped in the shaft slot (12) and can slide, the outer side of the connecting shaft (13) is further sleeved with compression spring (14), one end of the compression spring (14) abuts against one side in the limiting strip (8), and the other end of the compression spring (14) abuts against one side of the first fixed seat (11).

6. The anti-looseness ultrasonic transducer structure according to claim 4, characterized in that: The fixed ring (16) is fixedly installed in the inner side of the adjusting ring (10), multiple second fixed seats (17) are further fixedly installed in the inner side of the adjusting ring (10) above the fixed ring (16), the positioning slot (18) is formed in one side of the second fixed seat (17), and the fixed ring (16) is rotatably connected in the limiting slot (15) in the inner side, and the positioning slot (18) is clamped in one end of corresponding limiting strip (8).

Images