Ultrasonic hydrophone with multi-layer sealing waterproof structure

Abstract

The utility model relates to the technical field of ultrasonic detection, in particular to an ultrasonic hydrophone with a multilayer sealing waterproof structure, which comprises a shell, a processing unit, a voiceprint pickup, an output line and a sealing structure. One end of the output line penetrates through the shell and is electrically connected with the other end of the processing unit, the shell comprises a fixed cylinder, a first cover body and a second cover body, the first cover body and the second cover body cover the two sides of the fixed cylinder respectively, and the sealing structure comprises an inner sealing layer arranged in the shell and an outer sealing layer wrapping the outer side of the shell. And the processing unit and the voiceprint pickup are respectively arranged in the inner sealing layer. The ultrasonic hydrophone with the multi-layer sealing waterproof structure can detect the leakage condition of underwater molten aluminum more accurately and reliably, and is better in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic detection, in particular to an ultrasonic hydrophone with a multi-layer sealed waterproof structure. Background Art

[0002] With the continuous improvement of China's industrial manufacturing technology, the risks faced in the process of enterprise safety production have attracted more and more attention. Especially in the deep-well casting industry of aluminum processing, the leakage of molten aluminum is a high-risk point in the deep-well casting process; once the high-temperature molten aluminum leaks and comes into improper contact with cooling water, it will cause an explosion accident, with extremely high safety risks. In order to detect the leakage of molten aluminum more accurately and reliably in real time, ultrasonic detection equipment has emerged on the market at present. The ultrasonic detection equipment is immersed in water to detect the situation in the water in real time, and the existing sealing structure mainly realizes sealing by setting sealing rings and other methods. Due to the need to be immersed in water for a long time and being affected by the vibration of ultrasonic waves, the existing sealing methods are difficult to meet the sealing requirements of ultrasonic detection equipment.

[0003] It can be seen that the existing technology still needs to be improved. Content of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide an ultrasonic hydrophone with a multi-layer sealed waterproof structure to solve the problem of insufficient sealing of existing ultrasonic detection equipment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ultrasonic hydrophone with a multi-layer sealed waterproof structure includes a housing, a processing unit, a sound pattern pickup, an output line and a sealing structure. The sound pattern pickup is electrically connected to one end of the processing unit. One end of the output line penetrates through the housing and is electrically connected to the other end of the processing unit. The housing includes a fixed cylinder, and a first cover body and a second cover body respectively covering both sides of the fixed cylinder. The sealing structure includes an inner sealing layer arranged inside the housing and an outer sealing layer covering the outside of the housing. The processing unit and the sound pattern pickup are respectively arranged inside the inner sealing layer.

[0007] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, the housing is a waterproof housing made of waterproof materials.

[0008] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, the inner sealing layer includes a heat-resistant sealing glue filled inside the housing, and the heat-resistant sealing glue respectively fits and covers the outside of the processing unit and the sound pattern pickup.

[0009] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, the outer shell further includes a first connecting member and a second connecting member with the same structure. The first connecting member connects the fixed cylinder and the first cover body, and the second connecting member connects the fixed cylinder and the second cover body. A plurality of through holes are provided on the first connecting member.

[0010] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, a convex ring is provided on one side of the first connecting member facing away from the fixed cylinder. A plurality of clamping holes are provided on the circumferential side of the convex ring, and a plurality of buckles are provided on the circumferential side inside the first cover body. The plurality of clamping holes and the plurality of buckles are respectively arranged in one-to-one correspondence.

[0011] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, the ultrasonic hydrophone further includes a first shock-absorbing ring and a second shock-absorbing ring respectively sleeved on the outer side of the outer shell. The first shock-absorbing ring is arranged at the connection between the first cover body and the fixed cylinder, and the second shock-absorbing ring is arranged at the connection between the second cover body and the fixed cylinder.

[0012] The ultrasonic hydrophone with a multi-layer sealed waterproof structure as described above, the outer sealing layer includes a waterproof paint layer coated on the outer surface of the outer shell.

[0013] Beneficial effects:

[0014] The ultrasonic hydrophone with a multi-layer sealed waterproof structure of the present invention includes an outer shell, a processing unit, a sound pattern pickup, an output line and a sealing structure. The ultrasonic hydrophone is placed in a deep well, and the sound pattern pickup obtains the sound information of the underwater aluminum liquid. The processing unit performs noise reduction and analog-to-digital conversion on the sound information. The output line transmits the signal processed by the processing unit to an analysis device. Part of the processing unit, the sound pattern pickup and the output line are arranged inside the inner sealing layer. The outer sealing layer, the outer shell and the inner sealing layer form a three-layer seal. The ultrasonic hydrophone of the present application can more accurately and reliably detect the leakage of underwater aluminum liquid while having better sealing performance. Description of the drawings

[0015] Figure 1 It is a schematic structural diagram of the ultrasonic hydrophone provided by the present invention;

[0016] Figure 2 It is an exploded view of the ultrasonic hydrophone provided by the present invention;

[0017] Figure 3 It is a cross-sectional view of the ultrasonic hydrophone provided by the present invention;

[0018] Reference numerals: 1, housing; 11, fixed cylinder; 12, first cover; 13, second cover; 14, first connecting member; 15, second connecting member; 16, through hole; 17, convex ring; 18, clamping hole; 19, buckle; 2, first processing board; 3, second processing board; 4, voiceprint pickup; 5, output line; 6, first shock-absorbing ring; 7, second shock-absorbing ring. Detailed implementation manners

[0019] The utility model provides an ultrasonic hydrophone with a multi-layer sealed waterproof structure. To make the purpose, technical solution and effect of the utility model clearer and more definite, the following examples are given with reference to the accompanying drawings to further elaborate on the utility model in detail.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and should not be construed as a limitation to the present utility model; in addition, terms such as "installation", "connection", etc. should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] As Figures 1-3 shown, the ultrasonic hydrophone with a multi-layer sealed waterproof structure proposed in the embodiment of the present application includes a housing 1, a processing unit, a voiceprint pickup 4, an output line 5 and a sealing structure. The voiceprint pickup 4 is electrically connected to one end of the processing unit. One end of the output line 5 penetrates through the housing 1 and is electrically connected to the other end of the processing unit. The housing 1 includes a fixed cylinder 11, and a first cover 12 and a second cover 13 respectively covering both sides of the fixed cylinder 11. The sealing structure includes an inner sealing layer provided inside the housing 1 and an outer sealing layer covering the outside of the housing 1. The processing unit and the voiceprint pickup 4 are respectively provided inside the inner sealing layer.

[0022] The ultrasonic hydrophone with a multi-layer sealed waterproof structure of the present utility model includes a housing 1, a processing unit, a voiceprint pickup 4, an output line 5 and a sealing structure. The ultrasonic hydrophone is placed in a deep well. The voiceprint pickup 4 obtains the sound information of the underwater aluminum liquid. The processing unit performs noise reduction and analog-to-digital conversion on the sound information. The output line 5 transmits the signal processed by the processing unit to an analysis device. Part of the processing unit, the voiceprint pickup 4 and the output line 5 are provided inside the inner sealing layer. The outer sealing layer, the housing 1 and the inner sealing layer form a three-layer seal. The ultrasonic hydrophone of the present application can more accurately and reliably detect the leakage of underwater aluminum liquid while having better sealing performance.

[0023] Among them, the processing unit includes a first processing board 2 and a second processing board 3. The first processing board 2 and the second processing board 3 are circuit boards respectively. A first shielding box and an analog-to-digital converter are integrated on the first processing board 2. A second shielding box and a processing box are integrated on the second processing board 3. Inside the processing box, a preamplifier, a band-pass filter, an automatic gain controller, and a buffer are arranged in sequence along the signal input and output direction. The circuit board, the first shielding box, the analog-to-digital converter, the second shielding box, the preamplifier, the band-pass filter, the automatic gain controller, and the buffer are all prior arts. The voiceprint pickup 4 acquires the sound information of the underwater aluminum liquid. The second processing board 3 improves the quality of the sound information acquired by the voiceprint pickup 4, and then the first processing board 2 performs analog-to-digital conversion on the signal output by the second processing board 3.

[0024] The housing 1 is a waterproof housing made of waterproof materials to prevent water from entering the housing 1 and affecting the normal operation of the internal electronic components of the housing 1.

[0025] The inner sealing layer includes a heat-resistant sealant filled in the housing. The heat-resistant sealant is respectively adhered and coated on the outer sides of the processing unit and the voiceprint pickup 4. On the one hand, by using the fluidity of the colloid, it can flow to all corners during filling and completely cover the outer sides of the first processing board 2, the second processing board 3, and the voiceprint pickup 4, achieving the best sealing effect. On the other hand, using a heat-resistant sealant can reduce the negative impact of temperature changes on the normal operation of electronic components and improve the stability of the underwater aluminum liquid leakage detection device during operation.

[0026] The housing 1 further includes a first connecting member 14 and a second connecting member 15 with the same structure. The first connecting member 14 connects the fixed cylinder 11 and the first cover body 12. The second connecting member 15 connects the fixed cylinder 11 and the second cover body 13. A plurality of through holes 16 are provided on the first connecting member 14. The heat-resistant sealant is filled inward through one of the through holes 16. After the inside of the fixed cylinder 11 is filled, it flows out from other through holes 16. After the heat-resistant sealant hardens, both ends of the heat-resistant sealant pull the first connecting member 14 and the second connecting member 15 respectively, playing a role in reinforcement.

[0027] A convex ring 17 is provided on the side of the first connecting member 14 facing away from the fixed cylinder 11. A plurality of clamping holes 18 are provided on the circumferential side of the convex ring 17. A plurality of buckles 19 are provided on the circumferential side inside the first cover body 12. The plurality of clamping holes 18 and the plurality of buckles 19 are arranged in one-to-one correspondence respectively. Through the snap connection of the buckles 19 and the clamping holes 18, the installation is quick.

[0028] The ultrasonic hydrophone further includes a first shock-absorbing ring 6 and a second shock-absorbing ring 7 respectively sleeved on the outer side of the housing 1. The first shock-absorbing ring 6 is arranged at the connection between the first cover body 12 and the fixed cylinder 11, and the second shock-absorbing ring 7 is arranged at the connection between the second cover body 13 and the fixed cylinder 11. Due to the fluctuation of the water body and the reflection of ultrasonic waves, relative vibration is likely to occur between the ultrasonic hydrophone and the inner side of the deep well. The setting of the shock-absorbing ring can effectively reduce the influence of vibration on the operation of the ultrasonic hydrophone.

[0029] The outer sealing layer includes a waterproof paint layer coated on the outer surface of the housing 1. The waterproof paint layer is light and has good waterproof performance. Moreover, compared with the housing 1 itself, the weight and thickness increased by the waterproof paint layer coated on the housing 1 can be ignored and will not affect the sound pickup effect of the sound pattern pickup 4.

[0030] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. An ultrasonic hydrophone with a multi-layer sealed and waterproof structure, characterized in that: The invention comprises a housing (1), a processing unit, a voiceprint pickup (4), an output line (5) and a sealing structure, wherein the voiceprint pickup (4) is electrically connected to one end of the processing unit, one end of the output line (5) is passed through the housing (1) and is electrically connected to the other end of the processing unit, the housing (1) comprises a fixing tube (11), and a first cover body (12) and a second cover body (13) respectively covering two sides of the fixing tube (11), the sealing structure comprises an inner sealing layer arranged in the housing (1), and an outer sealing layer covering the outer side of the housing (1), and the processing unit and the voiceprint pickup (4) are respectively arranged in the inner sealing layer.

2. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 1, characterized in that: The housing (1) is a waterproof housing made of waterproof material.

3. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 1, characterized in that: The inner sealing layer comprises a heat-resistant sealant filled in the outer shell, and the heat-resistant sealant is respectively adhered and coated on the outer sides of the processing unit and the voiceprint pickup (4).

4. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 3, characterized in that: The housing (1) further comprises a first connecting member (14) and a second connecting member (15) of the same structure, wherein the first connecting member (14) connects the fixed cylinder (11) and the first cover body (12), and the second connecting member (15) connects the fixed cylinder (11) and the second cover body (13), and the first connecting member (14) is provided with a plurality of through holes (16).

5. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 4, characterized in that: A convex ring (17) is provided on the side of the first connecting member (14) facing away from the fixing tube (11); a plurality of snap-fit ​​holes (18) are provided on the peripheral side of the convex ring (17); a plurality of snap-fit ​​holes (19) are provided on the peripheral side inside the first cover body (12); and the plurality of snap-fit ​​holes (18) and the plurality of snap-fit ​​holes (19) are respectively arranged in one-to-one correspondence.

6. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 1, characterized in that: The ultrasonic hydrophone further comprises a first shock absorbing ring (6) and a second shock absorbing ring (7) which are respectively sleeved on the outside of the housing (1); the first shock absorbing ring (6) is arranged at the connection between the first cover body (12) and the fixing tube (11); and the second shock absorbing ring (7) is arranged at the connection between the second cover body (13) and the fixing tube (11).

7. The ultrasonic hydrophone with a multi-layer sealing and waterproof structure according to claim 1, characterized in that: The outer sealing layer comprises a waterproof paint layer coated on the outer surface of the outer shell (1).

Images