Cylindrical plane test block supporting structure for ultrasonic water immersion detection

Abstract

The invention discloses a cylindrical plane test block supporting structure for ultrasonic water immersion detection, and belongs to the technical field of ultrasonic water immersion detection. The problems that in the prior art, the detection efficiency is low, and a probe is prone to being damaged are solved. The supporting structure body comprises a shell with an opening in the upper end, an inner support is arranged in the shell, the inner support and the cylindrical plane test blocks are sequentially placed in the shell, the bottom face of the inner support is attached to the bottom face of the shell, the top face of the inner support is attached to the bottom faces of the cylindrical plane test blocks, the top faces of all the cylindrical plane test blocks are coplanar, and the shell is provided with a window. The cylindrical plane test block supporting structure for ultrasonic water immersion detection is used for ultrasonic water immersion detection, the top surface of each detection test block is located on the same plane, it is guaranteed that the water distance between a probe and the top surface of each test block is consistent, detection of test blocks of different lengths can be achieved only by translating the probe in the test block detection process, and the detection efficiency is improved. The time for moving and adjusting the water distance each time is shortened, and the detection efficiency is greatly improved; the probe is prevented from moving and colliding with the test block.

Description

Technical Field

[0001] The invention belongs to the technical field of ultrasonic water immersion detection, and in particular relates to a cylindrical plane test block support structure for ultrasonic water immersion detection. Background Art

[0002] In order to ensure the internal quality of aerospace discs, rings and slabs, ultrasonic testing is required for the internal parts of discs, rings and slabs during the manufacturing process and before installation. The main testing technology is the longitudinal wave direct incidence water immersion method, which detects defects such as holes, bubbles, gaps, tiny cracks, inclusions, etc. by vertically incidenting the longitudinal wave probe onto the workpiece surface, using water as a coupling agent, and ultrasonic propagation characteristics in the workpiece. The cylindrical flat-bottom hole test block (cylindrical plane test block) with a flat incident surface is an important auxiliary tool for ultrasonic water immersion testing. It is used to adjust the sensitivity of ultrasonic testing before testing and to evaluate the equivalent size of defects after defects are found.

[0003] In each set of cylindrical plane test blocks, the length of each cylindrical plane test block is different. The length of the conventional test blocks in the domestic standard ranges from 17.5mm to 135mm, and the height difference between the test blocks ranges from 2.5mm, 5.0mm, 10.00mm, etc. The length of the conventional test blocks in the American standard ranges from 20.65mm to 165.10mm, and the height difference between the test blocks ranges from 1.5875mm, 3.175mm, 6.35mm, 12.7mm, 10% of the test block length, etc.

[0004] Before making DAC / TCG curve or retesting sensitivity, the cylindrical plane test blocks need to be placed on the test block support table from low to high. The center of the end surface of the cylindrical plane test block should be on the same line. When making or checking DAC / TCG curve, the probe needs to be moved to the top of each probe in turn to collect data, such as Figure 8 As shown. During data acquisition, the water distance (the distance from the probe wafer to the upper surface of the test block) is consistent. Therefore, when the probe moves from one test block to another, in order to ensure the consistency of the water distance, the probe needs to move upward (from a low test block to a high test block) or downward (from a high test block to a low test block). In actual operation, in order to ensure that the water distance displayed by the system is real, and to prevent the probe from colliding with the test block during movement, the probe needs to be lifted to a safe height in a large range before translation, then translated, and finally adjusted to the appropriate water distance. For operators who are more skilled and experienced, it takes about 15 minutes to 20 minutes to make a DAC / TCG curve, and about 10 minutes to 15 minutes to verify a DAC / TCG curve. For general operators, it takes more time.

[0005] The current operation mode has the following shortcomings:

[0006] 1. After the detection system completes data collection on one test block, it needs to move the probe to the top of another test block for data collection. During the movement of the probe, in order to avoid the risk of collision between the probe and the test block, the probe must be raised to a safe distance first, then moved horizontally, and finally adjusted upward or downward until the water distance meets the requirements. During each movement of the probe, the time spent moving upward to a safe position and adjusting the water distance accounts for a large proportion, which directly prolongs the time for making and verifying DAC / TCG curves, reduces detection efficiency, increases detection costs, and does not meet the requirements of lean production.

[0007] 2. If the probe forgets to move upward to a safe distance during the movement process, the probe may collide with the test block. This problem often occurs in actual operation. The ultrasonic water immersion detection probe is a high-precision and expensive electronic component. The collision may cause damage to the probe, such as reduced accuracy or scrapping, which reduces the service life of the ultrasonic water immersion probe and increases the cost of ultrasonic testing. After the collision, in order to ensure safety, the ultrasonic water immersion detection system will automatically trigger the emergency stop protection program, and the system needs to be restored to continue testing. During recovery, all detection parameters need to be reset and adjusted from scratch, which prolongs the time for DAC / TCG curve preparation and verification, reduces detection efficiency, and increases detection costs, which does not meet the requirements of lean production. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a cylindrical plane test block support structure for ultrasonic water immersion detection, which has a simple structure and is easy to operate, greatly improves the detection efficiency, reduces the detection cost, and avoids collision damage between the probe and the test block.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] The present invention discloses a cylindrical plane test block support structure for ultrasonic water immersion detection, comprising a support structure body, wherein the support structure body comprises an outer shell with an upper end opening, wherein the outer shell is provided with inner supports corresponding to the cylindrical plane test blocks one by one, wherein the inner supports and the corresponding cylindrical plane test blocks are sequentially placed in the outer shell, wherein the bottom surface of the inner supports is fitted with the bottom surface of the corresponding outer shell, wherein the top surface of the inner supports is fitted with the bottom surface of the cylindrical plane test blocks, wherein the top surfaces of all the cylindrical plane test blocks are coplanar, and wherein the outer shell is provided with windows for observing the inner supports and the cylindrical plane test blocks.

[0011] Furthermore, the outer shell is a cylindrical outer shell, the inner diameter of the outer shell is D1, the outer diameter of the cylindrical plane test block is D2, and 0mm<D1-D2≤10mm.

[0012] Furthermore, the bottom surface thickness of the shell is h, 0<h≤10mm, and the side wall thickness of the shell is e, 0<e≤10mm.

[0013] Furthermore, the window is arranged along the axial direction of the shell, the inner depth of the shell is L1, the length of the window is L2, and L2≤L1.

[0014] Furthermore, the number of the windows is two, and the two windows are arranged opposite to each other on the housing.

[0015] Furthermore, the lower edge of the window is coplanar with the inner bottom surface of the shell.

[0016] Furthermore, the top and bottom ends of the inner support are chamfered.

[0017] Furthermore, the longest length of the cylindrical plane test block is L3, the shortest length of the cylindrical plane test block is L4, and L4<L1≤L3.

[0018] Furthermore, the shell is provided with a screw hole, and the distance between the screw hole close to the top edge of the shell and the top edge of the shell is b1, 0<b1<L1-(L3-L4), and the screw hole is provided with a top screw matching therewith.

[0019] Furthermore, at least two screw holes are arranged along the axial direction of the shell, and the distance between the screw hole close to the bottom edge of the shell and the top edge of the shell is b2, and b1<b2<L3.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] A cylindrical plane test block support structure for ultrasonic water immersion detection provided by the present invention is used for ultrasonic water immersion detection, and includes an outer shell and an inner support that cooperates with the cylindrical plane test block, such as a longer cylindrical plane test block cooperates with a shorter inner support, and a shorter cylindrical plane test block cooperates with a longer inner support. The total length of the cylindrical plane test block and the inner support are the same, and the size of the outer shell is the same. During ultrasonic water immersion detection, the corresponding inner support and cylindrical plane test block are placed in the outer shell, and a pair of matched inner support and cylindrical plane test block are placed in an outer shell, the bottom surface of the inner support is in contact with the inner bottom surface of the outer shell, and the top surface of the inner support is in contact with the bottom surface of the cylindrical plane test block. After all the cylindrical plane test blocks are placed in the outer shell, the top surface of each cylindrical plane test block is in the same plane. The top surface of each cylindrical plane test block is in the same plane, ensuring that the distance (water distance) between the detection probe and the top surface of each cylindrical plane test block is consistent. During the ultrasonic water immersion detection of the cylindrical plane test block, it is only necessary to translate the detection probe to the top of the corresponding cylindrical plane test block to detect cylindrical plane test blocks of different lengths, thereby reducing the time for adjusting the water distance after each movement of the detection probe, greatly improving the detection efficiency and reducing the detection cost. For example, in a traditional ultrasonic water immersion detection system, it takes about 15 to 20 minutes for a skilled and experienced operator to produce a DAC / TCG curve and about 10 to 15 minutes to verify a DAC / TCG curve, for a total of 25 to 35 minutes per time. The cylindrical plane test block support structure for ultrasonic water immersion detection of the present application is generally It only takes about 10 minutes for an operator to make a DAC / TCG curve, and about 5-10 minutes to verify a DAC / TCG curve, a total of 15-20 minutes per time, saving an average of 10-15 minutes per time, which is nearly half the time each time, greatly improving efficiency. General operators can complete the production and verification of DAC / TCG curves in a shorter time, improving practicality and reducing detection costs; during the translation of the detection probe, there is no risk of collision between the detection probe and the cylindrical plane test block, avoiding collision damage between the detection probe and the cylindrical plane test block, and ensuring the service life of the detection probe; reducing the time required to reset and adjust the detection parameters from the beginning when the detection probe is damaged, ensuring detection efficiency and reducing detection costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1It is a schematic diagram of ultrasonic water immersion detection placement state of a cylindrical plane test block support structure for ultrasonic water immersion detection provided by an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of a shell of a supporting structure body provided by an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the operation of placing the inner support and cylindrical plane test block provided by an embodiment of the present invention into the outer shell;

[0026] Figure 4 yes Figure 1 A top view of

[0027] Figure 5 yes Figure 1 A front view of

[0028] Figure 6 yes Figure 4 AA section view of the inner support and cylindrical plane test block placed into the shell;

[0029] Figure 7 is a schematic structural diagram of an inner support provided by an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of ultrasonic detection in the prior art.

[0031] Reference numerals: detection probe 1 , housing 2 , window 201 , screw hole 202 , cylindrical plane test block 3 , inner support 4 , top screw 5 . DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, this embodiment provides a cylindrical plane test block support structure for ultrasonic water immersion detection, including multiple support structure bodies, the support structure body includes a shell 2 with an upper end opening, the shell 2 is provided with an inner support 4 corresponding to the cylindrical plane test block 3, the inner support 4 and the corresponding cylindrical plane test block 3 are placed in the shell 2 in sequence, the bottom surface of the inner support 4 is in contact with the corresponding inner bottom surface of the shell 2, the top surface of the inner support 4 is in contact with the bottom surface of the cylindrical plane test block 3, the top surfaces of all the cylindrical plane test blocks 3 are coplanar, and the side wall of the shell 2 is provided with a window 201 for observing the inner support 4 and the cylindrical plane test block. The shape of the window 201 is square, elliptical, circular, etc. The shell 2 is a cylindrical shell 2 or a square column shell 2, and the shell 2 has a cavity for accommodating the cylindrical plane test block 3 and the inner support 4. The shell 2, the cylindrical plane test block 3, and the inner support 4 correspond to each other.

[0035] A cylindrical plane test block support structure for ultrasonic water immersion detection based on the above structure is used for ultrasonic water immersion detection, including an outer shell 2 and an inner support 4 matched with the cylindrical plane test block 3, such as a longer cylindrical plane test block 3 matched with a shorter inner support 4, and a shorter cylindrical plane test block 3 matched with a longer inner support 4, the total length of the cylindrical plane test block 3 and the inner support 4 are the same, and the size of the outer shell 2 is the same. During ultrasonic water immersion detection, the corresponding matched inner support 4 and cylindrical plane test block 3 are placed in the outer shell 2, and a pair of matched inner support 4 and cylindrical plane test block 3 are placed in an outer shell 2, the bottom surface of the inner support 4 is in contact with the inner bottom surface of the outer shell 2, and the top surface of the inner support 4 is in contact with the bottom surface of the cylindrical plane test block 3. After all the cylindrical plane test blocks 3 are placed in the outer shell 2, the top surface of each cylindrical plane test block 3 is in the same plane. The top surface of each cylindrical plane test block 3 is in the same plane, which ensures that the distance (water distance) between the detection probe 1 and the top surface of each cylindrical plane test block 3 is consistent. During the ultrasonic water immersion detection of the cylindrical plane test block 3, it is only necessary to translate the detection probe 1 to the top of the corresponding cylindrical plane test block 3 to detect cylindrical plane test blocks 3 of different lengths, thereby reducing the time for adjusting the water distance after each movement of the detection probe 1, greatly improving the detection efficiency and reducing the detection cost. For example, the traditional ultrasonic water immersion detection system, such as Figure 8 As shown, it takes about 15 minutes to 20 minutes for a skilled and experienced operator to make a DAC / TCG curve, and about 10 minutes to 15 minutes to verify a DAC / TCG curve, a total of 25 minutes to 35 minutes per time. The cylindrical plane test block support structure for ultrasonic water immersion detection of this application, such as Figure 1As shown, it only takes about 10 minutes for a general operator to make a DAC / TCG curve, and only 5 minutes to 10 minutes to verify a DAC / TCG curve, a total of 15 minutes to 20 minutes per time, saving an average of 10 minutes to 15 minutes per time, and shortening the time by nearly half each time on average, greatly improving efficiency. General operators can complete the production and verification of DAC / TCG curves in a shorter time, improving practicality and reducing detection costs; during the translation of the detection probe 1, there is no risk of collision between the detection probe 1 and the cylindrical plane test block 3, avoiding collision damage between the detection probe 1 and the cylindrical plane test block 3, ensuring the service life of the detection probe 1; reducing the time required to reset and adjust the detection parameters from the beginning when the detection probe 1 is damaged, ensuring detection efficiency and reducing detection costs. When placing the support structure, such as Figure 6 As shown, they are arranged from large to small or from small to large according to the length of the cylindrical plane test block 3 or the length of the inner support 4, so as to facilitate the preparation of DAC / TCG curves or sensitivity verification. The outer shell 2, the cylindrical plane test block 3, and the inner support 4 are independent entities, which have no effect on the function of the cylindrical plane test block 3 itself, and can be used in combination or separately. When used in combination for detection, they can be matched arbitrarily, as long as the top surface of the cylindrical plane test block 3 is in the same plane.

[0036] As an implementation method, Figure 2 , Figure 3 As shown, the housing 2 is a cylindrical housing 2, the inner diameter of the housing 2 is D1, the outer diameter of the cylindrical plane test block 3 is D2, and 0mm<D1-D2≤10mm.

[0037] The cylindrical shell 2 better cooperates with the cylindrical plane test block 3. The inner diameter of the shell 2 is 0mm to 10mm larger than the outer diameter of the cylindrical plane test block 3, such as 0mm, 0.1mm, 1mm, 4mm, 5mm, 8mm, 10mm, etc. If the inner diameter of the shell 2 is 0.1mm larger than the outer diameter of the cylindrical plane test block 3, the cylindrical plane test block 3 can be placed in the shell 2 to basically ensure that the top surface of the cylindrical plane test block 3 is level, and there is no adjustment gap between the cylindrical plane test block 3 and the inner wall of the shell 2, which is inconvenient for the inspection personnel to adjust; if the inner diameter of the shell 2 is 10mm larger than the outer diameter of the cylindrical plane test block 3, there is an adjustment gap between the cylindrical plane test block 3 and the inner wall of the shell 2, which is convenient for the inspection personnel to adjust the cylindrical plane test block 3.

[0038] As an implementation method, Figure 2 , Figure 6 As shown, the bottom thickness of the shell 2 is h, 0<h≤10mm, and the side wall thickness of the shell 2 is e, 0<e≤10mm.

[0039] The bottom thickness h of the outer shell 2 is 0<h≤10mm, such as 1mm, 2mm, 5mm, 8mm, 10mm, and the side wall thickness e of the outer shell 2 is 0<e≤10mm, such as 1mm, 3mm, 5mm, 7mm, 10mm. The smaller the bottom thickness of the outer shell 2 and the side wall thickness of the outer shell 2 are, the lighter the outer shell 2 is, which is convenient for transportation and material saving, ensuring effective support for the cylindrical plane test block 3 and the inner support 4 while reducing the weight of the outer shell 2.

[0040] As an implementation method, Figure 2 , Figure 3 As shown, the window 201 is arranged along the axial direction of the housing 2, the inner depth of the housing 2 is L1, and the length of the window 201 is L2, where L2≤L1.

[0041] The window 201 is opened on the side wall of the shell 2 along the axial direction of the shell 2 and is located between the top edge and the inner bottom surface of the shell 2, so as to ensure that the shell 2 effectively supports the cylindrical plane test block 3 and the inner support 4 while facilitating observation and drainage.

[0042] As an implementation method, Figure 2 As shown, there are two windows 201 , and the two windows 201 are arranged opposite to each other on the housing 2 .

[0043] The two windows 201 can better observe the contact situation between the cylindrical plane test block 3 and the inner support 4 in the outer shell 2, which is convenient for the inspection personnel to make adjustments and also facilitates rapid drainage.

[0044] As an implementation method, Figure 2 , Figure 3 As shown, the lower edge of the window 201 is coplanar with the inner bottom surface of the housing 2 .

[0045] The lower edge of the window 201 is coplanar with the inner bottom surface of the outer shell 2, which is convenient for completely draining the water in the outer shell 2, observing the contact between the inner support 4 and the inner bottom surface of the outer shell 2 and the contact between the cylindrical plane test block 3 and the inner support 4, and facilitating adjustments by the inspection personnel.

[0046] As an implementation method, Figure 7 As shown, the top and bottom ends of the inner support 4 are both chamfered.

[0047] The top and bottom ends of the inner support 4 are chamfered to facilitate the placement of the inner support 4 into the outer shell 2, and to facilitate the bottom end of the inner support 4 to completely fit with the inner bottom surface of the outer shell 2 to avoid cutting the inspection personnel. The top and bottom ends of the inner support 4 are chamfered or rounded, and the chamfer does not exceed 10mm×45° when chamfering, and the rounded corner does not exceed R10mm when rounding.

[0048] Among them, Figure 1As shown, the longest length of the cylindrical plane test block 3 is L3, the shortest length of the cylindrical plane test block 3 is L4, and L4<L1≤L3.

[0049] It is ensured that the top surface of the cylindrical plane test block 3 extends out of the housing 2, so that it is easy to observe that the top surfaces of all the cylindrical plane test blocks 3 are coplanar, thereby improving the accuracy of the detection probe 1 on the cylindrical plane test block 3.

[0050] As an implementation method, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the shell 2 is provided with a screw hole 202, and the distance between the screw hole 202 close to the top edge of the shell 2 and the top edge of the shell 2 is b1, 0<b1<L1-(L3-L4), and a top screw 5 cooperating therewith is provided in the screw hole 202.

[0051] Before ultrasonic water immersion testing of cylindrical plane test block 3, loosen top screw 5, and top screw 5 exits housing 2 along screw hole 202. First, put inner support 4 into housing 2, and then put cylindrical plane test block 3 into housing 2. After cylindrical plane test block 3 is leveled, tighten top screw 5, 0<b1<L1-(L3-L4), (the length of cylindrical plane test block 3 placed on inner support 4 is L, and the length of cylindrical plane test block 3 extending out of housing 2 is L5, 0<b1<L-L5), top screw 5 is tightened, and top screw 5 is tightened. The screw 5 is against the cylindrical plane test block 3, and the cylindrical plane test block 3 is tightly fitted with the inner wall of the shell 2. The cylindrical plane test block 3 is fixed in the shell 2. The inner support 4 is located below the cylindrical plane test block 3 and is also fixed in the shell 2, so as to prevent the cylindrical plane test block 3 and the inner support 4 from shifting or even sliding during transportation, and avoid the need to level the cylindrical plane test block 3 after transportation, thereby improving the detection efficiency and avoiding the safety accident caused by the cylindrical plane test block 3 sliding and causing damage to the detection personnel. The side wall thickness of the shell 2 is small, and the screw hole 202 is convex outward, so that the top screw 5 has a better fastening effect. During the placement of the shell 2, the screw hole 202 faces outward to ensure that the spacing between the end center of each cylindrical plane test block 3 in the same row is consistent.

[0052] As an implementation method, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, at least two screw holes 202 are arranged along the axial direction of the shell 2, and the screw holes 202 correspond to the top screws 5 one by one. The distance between the screw holes 202 close to the bottom edge of the shell 2 and the top edge of the shell 2 is b2, and b1<b2<L3.

[0053] At least two screw holes 202 are arranged on the housing 2 along the axial direction of the housing 2, such as two, three, four or more integers, and the screw holes 202 are located in the same straight line or arranged around the circumference of the housing 2. The arrangement of multiple screw holes 202 and top screws 5 plays a better role in fixing the cylindrical plane test block 3 and the inner support 4 in the housing 2, and prevents the cylindrical plane test block 3 and the inner support 4 from moving in the housing 2 during transportation.

[0054] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical plane test block support structure for ultrasonic water immersion detection, characterized in that: The invention comprises a supporting structure body, wherein the supporting structure body comprises an outer shell (2) with an opening at the upper end, wherein the outer shell (2) is provided with inner supports (4) corresponding to cylindrical plane test blocks (3) one by one, wherein the inner supports (4) and the corresponding cylindrical plane test blocks (3) are sequentially placed in the outer shell (2), wherein the bottom surface of the inner supports (4) is in contact with the bottom surface of the corresponding outer shell (2), and the top surface of the inner supports (4) is in contact with the bottom surface of the cylindrical plane test blocks (3), and the top surfaces of all the cylindrical plane test blocks (3) are coplanar, and the outer shell (2) is provided with a window (201) for observing the inner supports (4) and the cylindrical plane test blocks (3).

2. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 1 is characterized in that: The housing (2) is a cylindrical housing (2), the inner diameter of the housing (2) is D1, the outer diameter of the cylindrical plane test block (3) is D2, and 0mm<D1-D2≤10mm.

3. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 1 is characterized in that: The bottom surface thickness of the shell (2) is h, 0<h≤10mm, and the side wall thickness of the shell (2) is e, 0<e≤10mm.

4. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 1 is characterized in that: The window (201) is arranged along the axial direction of the outer shell (2), the inner depth of the outer shell (2) is L1, and the length of the window (201) is L2, where L2≤L1.

5. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 4 is characterized in that: The number of the windows (201) is two, and the two windows (201) are arranged opposite to each other on the housing (2).

6. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 5, characterized in that: The lower edge of the window (201) is coplanar with the inner bottom surface of the outer shell (2).

7. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 1 is characterized in that: The top and bottom ends of the inner support (4) are both chamfered.

8. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 1 is characterized in that: The longest length of the cylindrical plane test block (3) is L3, and the shortest length of the cylindrical plane test block (3) is L4, where L4<L1≤L3.

9. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 8, characterized in that: The housing (2) is provided with a screw hole (202), the distance between the screw hole (202) close to the top edge of the housing (2) and the top edge of the housing (2) is b1, 0<b1<L1-(L3-L4), and a top screw (5) cooperating therewith is provided in the screw hole (202).

10. The cylindrical plane test block support structure for ultrasonic water immersion detection according to claim 9, characterized in that: At least two screw holes (202) are arranged along the axial direction of the outer shell (2), and the distance between the screw hole (202) close to the bottom edge of the outer shell (2) and the top edge of the outer shell (2) is b2, and b1<b2<L3.

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