Small-diameter tube detection auxiliary tool and ray detection device

Abstract

The utility model discloses a small-diameter tube detection auxiliary tool, and relates to the field of nondestructive detection. The small-diameter tube detection auxiliary tool comprises an annular fastening piece, a supporting piece and an adjusting piece. A containing space is formed in the annular fastener and can contain a small-diameter tube to be detected in the extending direction of the containing space. The supporting piece can support the ray machine; the first end of the adjusting piece is connected with the annular fastener, the second end of the adjusting piece is rotationally connected with the supporting piece, and the rotating axis is perpendicular to the extending direction. Wherein the supporting piece is driven to rotate relative to the adjusting piece, and the emitting angle of the ray machine relative to the small-diameter tube to be detected is driven to change. The problems that in the prior art, the emergent angle of a ray machine relative to a small-diameter tube cannot be adjusted, defect judgment of the welding seam position of the small-diameter tube is not facilitated, and the accuracy of a detection result is affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of nondestructive testing, and in particular, to an auxiliary tool for small-diameter pipe inspection and a ray detection device. Background Art

[0002] With the development of science and technology, small-diameter pipes with an outer diameter less than 100 mm are applied to important industries such as aviation, aerospace, and military. In order to ensure the safety and reliability of small-diameter pipes during use, it is necessary to inspect the weld positions of small-diameter pipes. Since ray detection can achieve high-precision and high-visibility nondestructive testing, a ray machine is used to emit rays at the weld position of the small-diameter pipe, and an image is formed on a negative film provided on the small-diameter pipe to obtain a test result.

[0003] In the prior art, an auxiliary tool is used to fix the ray machine on the small-diameter pipe, so that the ray machine emits rays at a fixed emission angle to the small-diameter pipe. However, the prior art cannot adjust the emission angle of the ray machine relative to the small-diameter pipe, which is not conducive to defect judgment of the weld position of the small-diameter pipe and affects the accuracy of the test result.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide an auxiliary tool for small-diameter pipe inspection and a ray detection device, which solve the problem that the prior art cannot adjust the emission angle of the ray machine relative to the small-diameter pipe, which is not conducive to defect judgment of the weld position of the small-diameter pipe and affects the accuracy of the test result.

[0006] To solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the present application provides an auxiliary tool for small-diameter pipe inspection, including:

[0008] An annular fastener, a receiving space is formed inside the annular fastener, and the receiving space can receive a small-diameter pipe to be inspected along its extending direction;

[0009] A support member, the support member can support a ray machine;

[0010] An adjusting member, the first end of the adjusting member is connected to the annular fastener, and the second end of the adjusting member is rotatably connected to the support member and the rotation axis is perpendicular to the extending direction;

[0011] Wherein, driving the support member to rotate relative to the adjusting member drives the emission angle of the ray machine relative to the small-diameter pipe to change.

[0012] In some embodiments, the aforementioned small-diameter pipe detection auxiliary tooling also includes: a driving member, the driving member having a connecting end and a free end, the connecting end is spaced apart from the rotational connection position of the adjusting member and the supporting member and is rotationally connected to the adjusting member, the free end is spaced apart from the rotational connection position and is rotationally connected to the supporting member, and the rotation axis of the connecting end and the free end is parallel to the rotation axis of the adjusting member and the supporting member; wherein, when the free end is driven close to or away from the connecting end, the driving member drives the supporting member to rotate relative to the adjusting member.

[0013] In some embodiments, the aforementioned small-diameter pipe detection auxiliary tooling, wherein the driving member includes a first rod body, a second rod body and a third rod body; the first end of the first rod body is a connecting end, and the side of the first rod body away from the connecting end has a first thread segment; the first end of the third rod body is a free end, and the side of the third rod body away from the free end has a second thread segment, and the second thread segment and the first thread segment have opposite rotation directions; the two ends of the second rod body are respectively nested in the first rod body and the third rod body and are threadedly connected to the first thread segment and the second thread segment.

[0014] In some embodiments, in the aforementioned small-diameter pipe detection auxiliary tooling, the adjusting member includes multi-stage sleeves that are nested and slidably connected to each other, one end of the multi-stage sleeve is connected to the annular fastener, and the other end is connected to the support member.

[0015] In some embodiments, the aforementioned small-diameter pipe detection auxiliary tooling, wherein the adjusting member includes a two-stage sleeve and is respectively a first sleeve and a second sleeve, one end of the first sleeve is connected to the annular fastener, and the other end is nested in the first end of the second sleeve, the second end of the second sleeve is rotatably connected to the support member, the first sleeve is provided with a plurality of spaced first through holes along its length direction, and the second sleeve is provided with a second through hole near its first end; the adjusting member also includes a limiting member, the limiting member passes through the first through hole and the second through hole to limit the first sleeve.

[0016] In some embodiments, the aforementioned small-diameter pipe detection auxiliary tooling, wherein the annular fastener includes a semicircular first clamp and a second clamp, one end of the first clamp and the second clamp are hinged, and the other end is detachably connected, and the inner walls of the first clamp and the second clamp enclose a accommodating space.

[0017] In some embodiments, in the aforementioned small-diameter pipe detection auxiliary tooling, the annular fastener includes a plurality of groups of first clamps and second clamps arranged in parallel and spaced apart along the extension direction, and adjacent first clamps and adjacent second clamps are at least partially welded.

[0018] In some embodiments, the aforementioned small-diameter tube detection auxiliary tooling, wherein the first clamp and the second clamp are each provided with at least one threaded hole, a bolt is passed through the threaded hole, one end of the bolt protrudes out of the outer edge of the first clamp or the second clamp and is provided with a knob, and the other end of the bolt is provided with a limiting block, which can limit the small-diameter tube to be detected in the accommodating space.

[0019] In some embodiments, in the aforementioned small-diameter tube detection auxiliary tooling, the end surface of the limit block on the side away from the knob is arc-shaped.

[0020] The second aspect of the present application provides a radiation detection device, including a radiation machine and the above-mentioned small-diameter tube detection auxiliary tooling, the radiation machine has an emission angle relative to the small-diameter tube to be detected; the radiation machine is cooperatively connected with the support member of the small-diameter tube detection auxiliary tooling; wherein the driving support member rotates relative to the adjusting member, driving the supporting surface to approach or move away from the accommodating space to change the emission angle.

[0021] By means of the above technical solution, the small-diameter pipe detection auxiliary tooling and the ray detection device of the utility model have at least the following advantages:

[0022] The first aspect of the present application provides a small-diameter tube detection auxiliary tooling, comprising an annular fastener, a support member and an adjusting member; a accommodating space is formed inside the annular fastener, and the accommodating space can accommodate the small-diameter tube to be detected along its extension direction; the supporting member can support the X-ray machine; the first end of the adjusting member is connected to the annular fastener, and the second end of the adjusting member is rotatably connected to the supporting member and the rotation axis is perpendicular to the extension direction; wherein, the driving support member rotates relative to the adjusting member, driving the X-ray machine to change the emission angle relative to the small-diameter tube to be detected. The small-diameter tube inspection auxiliary tooling of the present application can fasten the small-diameter tube to be inspected and the X-ray machine respectively through the accommodating space and the support provided by the annular fastener, and realize the linkage between the X-ray machine and the small-diameter tube to be inspected through the adjusting member between the annular fastener and the support. In order to realize the adjustable emission angle of the X-ray machine relative to the small-diameter tube, the present application sets the second end of the adjusting member to be rotatably connected with the support, and limits the rotation axis to be perpendicular to the extension direction of the accommodating space for the small-diameter tube to be inspected, so that the support supporting the X-ray machine rotates relative to the adjusting member under driving, thereby changing the emission angle of the X-ray machine relative to the small-diameter tube to be inspected. Different inclined elliptical imaging and vertical transillumination imaging results can be obtained at different emission angles, so that the defects of the weld position of the small-diameter tube to be inspected can be judged more comprehensively, so that the detection results are more accurate under the reference comparison of multiple results. Through the application of the present application, the problem that the existing technology cannot adjust the emission angle of the X-ray machine relative to the small-diameter tube, which is not conducive to the defect judgment of the weld position of the small-diameter tube and affects the accuracy of the detection results is solved.

[0023] The radiation detection device provided in the second aspect of the present application has the same or similar effect as the small-diameter pipe detection auxiliary tooling provided in the first aspect of the present application.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present application will become readily understandable. In the drawings, several embodiments of the present application are shown by way of illustration and not limitation, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0026] Figure 1 Schematically shown is a front view structural schematic diagram of an auxiliary tool for small-diameter pipe inspection provided by an embodiment of the present utility model;

[0027] Figure 2 Schematically shown is a partial axonometric structural schematic diagram of an adjusting member of an auxiliary tool for small-diameter pipe inspection provided by an embodiment of the present utility model;

[0028] Figure 3 Schematically shown is a side view structural schematic diagram of an annular fastener of an auxiliary tool for small-diameter pipe inspection provided by an embodiment of the present utility model.

[0029] Explanation of reference numerals in the drawings:

[0030] 1. Annular fastener; 11. Accommodating space; 12. First clamp; 13. Second clamp; 14. Threaded hole; 15. Bolt; 16. Knob; 17. Limiting block;

[0031] 2. Support member;

[0032] 3. Adjusting member; 31. First sleeve; 32. Second sleeve; 33. Limiting member; 311. First through hole; 321. Second through hole;

[0033] 4. Driving member; 41. Connection end; 42. Free end; 43. First rod body; 44. Second rod body; 45. Third rod body; 431. First threaded section; 451. Second threaded section;

[0034] 5. Ray machine;

[0035] 6. Small-diameter pipe to be inspected;

[0036] A. Extension direction. Detailed implementation manners

[0037] The following further describes in detail the implementation manners of the present application in conjunction with the drawings and embodiments. The detailed description and drawings of the following embodiments are used to illustrate the principle of the present application by way of example, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms, is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0038] It should be noted that in the description of this application, unless otherwise specified, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0039] In addition, the "first", "second" and similar terms used in this application do not represent any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Terms such as "including" or "comprising" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0040] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. All terms used in this application have the same meanings as understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0041] For technologies, methods and devices known to those of ordinary skill in the relevant art, they may not be discussed in detail, but in appropriate cases, the technologies, methods and devices should be regarded as part of the specification.

[0042] Embodiment 1

[0043] As Figure 1 shown, in the first aspect of this application, a detection auxiliary tooling for small-diameter pipes is provided, including an annular fastener 1, a support member 2 and an adjustment member 3; a receiving space 11 is formed inside the annular fastener 1, and the receiving space 11 can receive the small-diameter pipe 6 to be detected along its extension direction A; the support member 2 can support the ray machine 5; the first end of the adjustment member 3 is connected to the annular fastener 1, and the second end of the adjustment member 3 is rotatably connected to the support member 2 and the rotation axis is perpendicular to the extension direction A; wherein, driving the support member 2 to rotate relative to the adjustment member 3 drives the emission angle of the ray machine 5 relative to the small-diameter pipe 6 to change.

[0044] Specifically, in order to fasten and limit the small-diameter pipe 6 to be detected, the present application sets an annular fastener 1, and fastens and limits the small-diameter pipe 6 to be detected through the accommodation space 11 formed by the annular fastener 1. The extending direction A of the accommodation space 11, that is, also the length direction of the small-diameter pipe 6 to be detected, so that the annular fastener 1 can cooperate with the small-diameter pipe 6 to be detected. When detecting the continuous pipeline that has been installed on site, the annular fastener 1 can be in the form of a detachable connection clamp, which can be composed of two semi-circular clamps combined into a circular ring through fasteners such as screws and pins, or two clamps with one end hinged and the other end openable, specifically not limited, as long as it can realize the fastening of the small-diameter pipe 6 to be detected. When detecting the non-continuous part of the pipeline, the annular fastener 1 can also be an integral annular device, which is sleeved from one end of the small-diameter pipe 6 to be detected and reaches the preset position for fastening and limiting.

[0045] As the support member 2 corresponding to one end of the small-diameter pipe detection auxiliary tooling of the present application for the ray machine 5, the support member 2 can be a bracket, a support rod, or a channel steel, an angle steel, etc., specifically not limited, as long as it can realize the support function. In order to be able to fix the ray machine 5, the support member 2 and the ray machine 5 can be tied together through a tight rope device or an elastic rope, or a guide rail can be set on the support member 2, and the ray machine 5 is fixedly connected to a slider matching the guide rail, or a clamp can be set between the support member 2 and the ray machine 5 for fastening, specifically not limited, as long as the fastening connection between the ray machine 5 and the support member 2 can be realized.

[0046] In order to realize the linkage between the ray machine 5 and the small-diameter pipe 6 to be detected, the present application is provided with an adjusting member 3 between the annular fastener 1 and the support member 2. The second end of the adjusting member 3 is rotatably connected to the support member 2, and the rotation axis is defined to be perpendicular to the extending direction A of the accommodation space 11 for accommodating the small-diameter pipe 6 to be detected, so that the support member 2 supporting the ray machine 5 rotates relative to the adjusting member 3 under drive, thereby changing the emission angle of the ray machine 5 relative to the small-diameter pipe 6 to be detected. Under different emission angles, different inclined elliptical imaging and vertical penetration imaging results can be obtained, and then the defects at the weld position of the small-diameter pipe 6 to be detected can be judged more comprehensively, making the detection result more accurate under the reference and comparison of multiple results.

[0047] The first aspect of the present application provides an auxiliary tooling for small-diameter pipe inspection, including an annular fastener 1, a support member 2, and an adjusting member 3. An accommodation space 11 is formed inside the annular fastener 1, and the accommodation space 11 can accommodate a small-diameter pipe 6 to be inspected along its extending direction A. The support member 2 can support the ray machine 5. The first end of the adjusting member 3 is connected to the annular fastener 1, and the second end of the adjusting member 3 is rotatably connected to the support member 2 with the rotation axis perpendicular to the extending direction A. Wherein, by driving the support member 2 to rotate relative to the adjusting member 3, the outgoing angle of the ray machine 5 relative to the small-diameter pipe 6 to be inspected is driven to change. The auxiliary tooling for small-diameter pipe inspection in the present application can respectively fasten and connect the small-diameter pipe 6 to be inspected and the ray machine 5 through the accommodation space 11 provided by the annular fastener 1 and the support member 2, and realizes the linkage between the ray machine 5 and the small-diameter pipe 6 to be inspected through the adjusting member 3 between the annular fastener 1 and the support member 2. In order to enable the outgoing angle of the ray machine 5 relative to the small-diameter pipe to be adjustable, in the present application, the second end of the adjusting member 3 is rotatably connected to the support member 2, and the rotation axis is defined to be perpendicular to the extending direction A of the accommodation space 11 for accommodating the small-diameter pipe 6 to be inspected, so that the support member 2 supporting the ray machine 5 rotates relative to the adjusting member 3 under driving, thereby changing the outgoing angle of the ray machine 5 relative to the small-diameter pipe 6 to be inspected. Different inclined elliptical imaging and vertical penetration imaging results can be obtained at different outgoing angles, and further, the defects at the weld position of the small-diameter pipe 6 to be inspected can be judged more comprehensively, making the inspection result more accurate under the reference and comparison of multiple results. Through the application of the present application, the problem in the prior art that the outgoing angle of the ray machine 5 relative to the small-diameter pipe cannot be adjusted, which is not conducive to judging the defects at the weld position of the small-diameter pipe and affects the accuracy of the inspection result, is solved.

[0048] As Figure 1 shown, in some embodiments, it further includes: a driving member 4. The driving member 4 has a connecting end 41 and a free end 42. The connecting end 41 is rotatably connected to the adjusting member 3 at an interval from the rotation connection position between the adjusting member 3 and the support member 2, and the free end 42 is rotatably connected to the support member 2 at an interval from the rotation connection position. The rotation axes of the connecting end 41 and the free end 42 are parallel to the rotation axis between the adjusting member 3 and the support member 2. Wherein, by driving the free end 42 to approach or move away from the connecting end 41, the driving member 4 drives the support member 2 to rotate relative to the adjusting member 3.

[0049] Specifically, in order to enable the support member 2 to rotate relative to the adjusting member 3, the present application is provided with a driving member 4. In the present embodiment, the support member 2 rotates relative to the adjusting member 3, and the adjusting member 3 is in a relatively static state. Therefore, the ends of the driving member 4 provided in the present application respectively include a connecting end 41 and a free end 42. The connecting end 41 is spaced apart from the rotational connection position of the adjusting member 3 and the support member 2 and is rotationally connected to the adjusting member 3. The free end 42 is spaced apart from the rotational connection position and is rotationally connected to the support member 2. The rotation axis of the connecting end 41 and the free end 42 is parallel to the rotation axis of the adjusting member 3 and the support member 2. As the free end 42 approaches the connecting end 41, the support member 2 is driven to rotate relative to the adjusting member 3. The free end 42 moves away from the connecting end 41, and the support member 2 rotates in the opposite direction relative to the adjusting member 3, so that the X-ray machine 5 on the support member 2 can have different emission angles relative to the small-diameter tube 6 to be detected.

[0050] In order to drive the free end 42 to move closer to or further away from the connecting end 41, the driving member 4 can be a combination of a driving motor and a telescopic rod. The driving motor drives the telescopic rod to extend and retract, thereby driving the free end 42 to move closer to or further away from the connecting end 41. It can also be a combination of multi-stage threaded rods. By screwing the multi-stage threaded rods in and out, the change in their total length is controlled, thereby achieving a change in the position of the free end 42 relative to the connecting end 41. It can also be in the form of a sleeve. The change in the total length is achieved by controlling the embedding distance of the sleeve, that is, the free end 42 moves closer to or further away from the connecting end 41. There is no specific limitation as long as it can drive the support member 2 to rotate relative to the adjusting member 3.

[0051] like Figure 1 As shown, in some embodiments, the driving member 4 includes a first rod body 43, a second rod body 44 and a third rod body 45; the first end of the first rod body 43 is a connecting end 41, and the side of the first rod body 43 away from the connecting end 41 has a first threaded segment 431; the first end of the third rod body 45 is a free end 42, and the side of the third rod body 45 away from the free end 42 has a second threaded segment 451, and the second threaded segment 451 and the first threaded segment 431 have opposite rotation directions; the two ends of the second rod body 44 are respectively nested in the first rod body 43 and the third rod body 45 and are threadedly connected to the first threaded segment 431 and the second threaded segment 451.

[0052] Specifically, in the embodiment of the present application, the driving member 4 is composed of a three-stage rod body, namely a first rod body 43, a second rod body 44 and a third rod body 45. The first end of the first rod body 43 is a connecting end 41 connected to the adjusting member 3, and the first rod body 43 has a first threaded section 431 on the side away from the connecting end 41. The first end of the third rod body 45 is a free end 42 connected to the support member 2, and the third rod body 45 has a second threaded section 451 on the side away from the free end 42. The two ends of the second rod body 44 are respectively embedded in the first rod body 4 3 and the third rod 45 and are threadedly connected to the first thread segment 431 and the second thread segment 451. The second thread segment 451 and the first thread segment 431 rotate in opposite directions. When it is necessary to adjust the free end 42 to be closer to or farther away from the connecting end 41, it is only necessary to drive the second rod 44 to rotate, so that the embedding length of the second rod 44 relative to the first rod 43 and the third rod 45 can be changed at the same time, thereby realizing the change of the overall length of the driving member 4, and then the free end 42 is closer to or farther away from the connecting end 41, and the driving support member 2 is rotated relative to the adjusting member 3.

[0053] In some embodiments, the adjusting member 3 includes a multi-stage sleeve that is nested and slidably connected to each other, one end of the multi-stage sleeve is connected to the annular fastener 1, and the other end is connected to the supporting member 2.

[0054] Specifically, in order to achieve adjustable focal length of the X-ray machine 5 for irradiating the small-diameter tube 6 to be inspected, and thus to be able to perform non-destructive testing on small-diameter tubes with different wall thicknesses and different diameters, so as to optimize the penetration ability of the rays through focal length adjustment, optimize the image resolution, and improve the clarity and contrast of the image obtained in the film, the present application sets an adjustment member 3 including a multi-stage sleeve that is nested and slidably connected to each other, and the multi-stage sleeve is connected between the annular fastener 1 and the support 2. Through the sliding between the multi-stage sleeves, the distance between the X-ray machine 5 supported by the support 2 and the small-diameter tube 6 to be inspected in the accommodating space 11 of the annular fastener 1 is changed, thereby realizing focal length adjustment.

[0055] like Figure 1 and Figure 2 As shown, in some embodiments, the adjusting member 3 includes a two-stage sleeve and is respectively a first sleeve 31 and a second sleeve 32. One end of the first sleeve 31 is connected to the annular fastener 1, and the other end is nested in the first end of the second sleeve 32. The second end of the second sleeve 32 is rotatably connected to the support member 2. The first sleeve 31 is provided with a plurality of spaced first through holes 311 along its length direction, and the second sleeve 32 is provided with a second through hole 321 near its first end. The adjusting member 3 also includes a limiting member 33, and the limiting member 33 passes through the first through hole 311 and the second through hole 321 to limit the first sleeve 31.

[0056] Specifically, in an embodiment of the present application, the adjusting member 3 includes two-stage sleeves, namely a first sleeve 31 and a second sleeve 32. The first sleeve 31 is closer to the small-diameter pipe 6 to be detected than the second sleeve 32, and the first sleeve 31 is nested in the second sleeve 32 with a smaller diameter. In order to change the distance between the ray machine 5 supported by the support member 2 and the small-diameter pipe 6 in the accommodating space 11 of the annular fastener 1, in the present application, a plurality of spaced first through holes 311 are provided along the length direction of the first sleeve 31, and a second through hole 321 is provided near the first end of the second sleeve 32. The first through holes 311 and the second through hole 321 are limited by a limiting member 33 to limit the first sleeve 31 to the second sleeve 32. At this time, the focal length of the ray machine 5 is limited. The limiting member 33 can be a pin or a rod-like object, etc., specifically not limited, as long as it can pass through the first through holes 311 and the second through hole 321 at the same time to limit the first sleeve 31 relative to the second sleeve 32. It should be noted that the setting position of the first through holes 311 can be matched according to the required emission angle of the ray machine 5, the diameter and wall thickness of the small-diameter pipe 6 to be detected, etc., by calculating the optimal focal length at different emission angles in advance, so as to ensure that the total length of the two-stage sleeves meets the detection requirements of the ray machine 5 and the small-diameter pipe 6 at both ends.

[0057] As Figure 3 shown, in some embodiments, the annular fastener 1 includes a semi-circular first clamp 12 and a second clamp 13. One end of the first clamp 12 and the second clamp 13 is hinged, and the other end is detachably connected. The inner walls of the first clamp 12 and the second clamp 13 enclose an accommodating space 11.

[0058] Specifically, in order to be able to tightly limit the small-diameter pipe 6 to be detected, the annular fastener 1 of the present application includes a semi-circular first clamp 12 and a second clamp 13. Among them, one end of the first clamp 12 and the second clamp 13 is hinged, and the other end is detachably connected, so that the detachable ends of the first clamp 12 and the second clamp 13 can be opened and closed, so that the annular fastener 1 can be installed from the outside of the small-diameter pipe 6 to be detected. The detachable connection method can be realized by fasteners such as screws and pins, specifically not limited, as long as the small-diameter pipe 6 to be detected can be tightly limited by the accommodating space 11 enclosed by the inner walls of the first clamp 12 and the second clamp 13.

[0059] In some embodiments, the annular fastener 1 includes multiple groups of first clamps 12 and second clamps 13 arranged in parallel at intervals along the extension direction A. At least part of the adjacent first clamps 12 and the adjacent second clamps 13 are welded.

[0060] Specifically, in order to more stably fasten and limit the small-diameter pipe 6 to be detected, the present application is provided with multiple groups of first clamps 12 and second clamps 13 arranged in parallel at intervals along the extending direction A of the accommodating space 11. By the multiple groups of first clamps 12 and second clamps 13, the volume of the enclosed accommodating space 11 is increased, and the contact area with the small-diameter pipe 6 to be detected is increased to ensure the stability of fastening. And in order to facilitate the installation and disassembly of the annular fastener 1, the present application arranges at least partial welding between adjacent first clamps 12 and between adjacent second clamps 13, and the multiple groups of second clamps 13 can rotate relative to the first clamps 12 at the same time and then enclose the accommodating space 11 to limit the small-diameter pipe 6 to be detected.

[0061] As Figure 3 shown, in some embodiments, at least one threaded hole 14 is provided in both the first clamp 12 and the second clamp 13. A bolt 15 is inserted into the threaded hole 14. One end of the bolt 15 protrudes from the outer edge of the first clamp 12 or the second clamp 13 and is provided with a knob 16, and the other end of the bolt 15 is provided with a limiting block 17, and the limiting block 17 can limit the small-diameter pipe 6 to be detected within the accommodating space 11.

[0062] Specifically, in order to achieve adjustable and more stable fastening of the small-diameter pipe 6 to be detected, the present application is provided with at least one threaded hole 14 in both the first clamp 12 and the second clamp 13. A bolt 15 with a knob 16 and a limiting block 17 is inserted into the threaded hole 14. The knob 16 can be operated by an operator to realize the screwing-in and screwing-out of the bolt 15. At least two corresponding limiting blocks 17 of the first clamp 12 and the second clamp 13 can play a limiting role to limit the small-diameter pipe 6 within the accommodating space 11. At the same time, the above setting enables the small-diameter pipe detection auxiliary tooling of the present application to be adaptively adjusted according to the different pipe diameters of the small-diameter pipe 6 to be detected. By operating the knob 16 to adjust the position of the bolt 15, the limiting block 17 can fasten and limit small-diameter pipes with different pipe diameters.

[0063] When each of the first clamp 12 and the second clamp 13 is provided with one threaded hole 14, the two threaded holes 14 are arranged opposite to each other to more stably fix the small-diameter pipe 6 to be detected. When the first clamp 12 is provided with one threaded hole 14 and the second clamp 13 is provided with two threaded holes 14, the three threaded holes 14 are arranged evenly in the circumferential direction. When both the first clamp 12 and the second clamp 13 are provided with two threaded holes 14, the four threaded holes 14 are arranged evenly in the circumferential direction. The specific number of the threaded holes 14 is not limited, as long as the limiting blocks 17 of the corresponding bolts 15 can stably clamp the small-diameter pipe 6.

[0064] For the installation of the limit block 17, a threaded hole 14 can be opened at the other end of the bolt 15, and the limit block 17 is partially threadedly connected to the threaded hole 14. A limit hole with a threaded hole 14 can also be used and directly threadedly connected to the other end of the bolt 15. The limit block 17 can also be welded to the bolt 15. There is no specific limitation as long as the multiple limit blocks 17 of the multiple bolts 15 can limit the small-diameter tube 6 to be inspected in the accommodating space 11.

[0065] like Figure 3 As shown, in some embodiments, the end surface of the limiting block 17 facing away from the knob 16 is arc-shaped.

[0066] Specifically, in order to make the limit block 17 at one end of the bolt 15 passed through the first clamp 12 and the second clamp 13 of the present application better match the outer edge of the small-diameter tube 6 to be tightened, meet the tightening requirements and protect the small-diameter tube from damage, the present application sets the end face of the limit block 17 on one side away from the knob 16 to be arc-shaped to match the outer edge of the small-diameter tube 6 to be inspected. And in order to further buffer the contact between the limit block 17 and the small-diameter tube 6 to be inspected, an elastic coating such as polyurethane or silicone grease can be used on the limit block 17, or an arc-shaped elastic gasket can be added, etc., without limitation.

[0067] Embodiment 2

[0068] like Figure 1 As shown, the second aspect of the present application provides a radiation detection device, including a radiation machine 5 and the above-mentioned small-diameter tube detection auxiliary tooling, the radiation machine 5 has an emission angle relative to the small-diameter tube 6 to be detected; the radiation machine 5 is cooperatively connected with the support member 2 of the small-diameter tube detection auxiliary tooling; wherein, the support member 2 is driven to rotate relative to the adjustment member 3, driving the support surface to approach or move away from the accommodating space 11 to change the emission angle.

[0069] Specifically, please refer to Example 1 for the specific structure of the small-diameter pipe detection auxiliary tooling, which will not be repeated here.

[0070] The second aspect of the present application provides a ray detection device, which includes a ray machine 5 and the above-mentioned small-diameter pipe detection auxiliary tooling. The ray machine 5 has an emission angle relative to the small-diameter pipe 6 to be detected; the ray machine 5 is cooperatively connected with the support member 2 of the small-diameter pipe detection auxiliary tooling; wherein, driving the support member 2 to rotate relative to the adjusting member 3 drives the support surface to approach or move away from the accommodation space 11 to change the emission angle. The small-diameter pipe detection auxiliary tooling includes an annular fastener 1, a support member 2 and an adjusting member 3; an accommodation space 11 is formed inside the annular fastener 1, and the accommodation space 11 can accommodate the small-diameter pipe 6 to be detected along its extending direction A; the support member 2 can support the ray machine 5; the first end of the adjusting member 3 is connected to the annular fastener 1, and the second end of the adjusting member 3 is rotatably connected to the support member 2 and the rotation axis is perpendicular to the extending direction A; wherein, driving the support member 2 to rotate relative to the adjusting member 3 drives the emission angle of the ray machine 5 relative to the small-diameter pipe 6 to be detected to change. The small-diameter pipe detection auxiliary tooling of the present application can respectively fasten and connect the small-diameter pipe 6 to be detected and the ray machine 5 through the accommodation space 11 provided by the annular fastener 1 and the support member 2, and realizes the linkage between the ray machine 5 and the small-diameter pipe 6 to be detected through the adjusting member 3 between the annular fastener 1 and the support member 2. In order to enable the emission angle of the ray machine 5 relative to the small-diameter pipe to be adjustable, the present application sets the second end of the adjusting member 3 to be rotatably connected to the support member 2 and defines the rotation axis to be perpendicular to the extending direction A of the accommodation space 11 for accommodating the small-diameter pipe 6 to be detected, so that the support member 2 supporting the ray machine 5 rotates relative to the adjusting member 3 under driving, thereby changing the emission angle of the ray machine 5 relative to the small-diameter pipe 6 to be detected. Different inclined elliptical imaging and vertical penetration imaging results can be obtained at different emission angles, and thus the defects at the weld position of the small-diameter pipe 6 to be detected can be judged more comprehensively, making the detection result more accurate under the reference and comparison of multiple results. Through the application of the present application, the problem in the prior art that the emission angle of the ray machine 5 relative to the small-diameter pipe cannot be adjusted, which is not conducive to judging the defects at the weld position of the small-diameter pipe and affects the accuracy of the detection result, is solved.

[0071] As mentioned above, the above are only the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. An auxiliary tooling for small-diameter pipe detection, characterized in that include: An annular fastener (1), wherein a receiving space (11) is formed in the annular fastener (1), and the receiving space (11) is capable of receiving a small-diameter tube (6) to be inspected along its extension direction (A); A support member (2), wherein the support member (2) is capable of supporting a X-ray machine (5); An adjusting member (3), wherein a first end of the adjusting member (3) is connected to the annular fastener (1), and a second end of the adjusting member (3) is rotatably connected to the supporting member (2) and the axis of rotation is perpendicular to the extending direction (A); The support member (2) is driven to rotate relative to the adjustment member (3), thereby driving the emission angle of the ray machine (5) relative to the small-diameter tube (6) to be detected to change.

2. The small-diameter pipe detection auxiliary tooling according to claim 1, wherein Also includes: A driving member (4), the driving member (4) comprising a connecting end (41) and a free end (42), the connecting end (41) being spaced apart from a rotational connection position between the adjusting member (3) and the supporting member (2) and being rotationally connected to the adjusting member (3), the free end (42) being spaced apart from the rotational connection position and being rotationally connected to the supporting member (2), and a rotation axis between the connecting end (41) and the free end (42) being parallel to a rotation axis between the adjusting member (3) and the supporting member (2); Wherein, by driving the free end (42) to move closer to or farther away from the connecting end (41), the driving member (4) drives the supporting member (2) to rotate relative to the adjusting member (3).

3. The small-diameter pipe detection auxiliary tooling according to claim 2 is characterized in that: The driving member (4) comprises a first rod body (43), a second rod body (44) and a third rod body (45); The first end of the first rod body (43) is the connecting end (41), and the side of the first rod body (43) facing away from the connecting end (41) has a first threaded section (431); The first end of the third rod body (45) is the free end (42), and the side of the third rod body (45) facing away from the free end (42) has a second thread segment (451), and the second thread segment (451) and the first thread segment (431) have opposite rotation directions; Two ends of the second rod body (44) are respectively nested in the first rod body (43) and the third rod body (45) and are threadedly connected to the first thread segment (431) and the second thread segment (451).

4. The small-diameter pipe detection auxiliary tooling according to claim 1 is characterized in that: The adjusting member (3) comprises a plurality of sleeves which are nested with each other and slidably connected, one end of the plurality of sleeves being connected to the annular fastener (1) and the other end being connected to the supporting member (2).

5. The small-diameter pipe detection auxiliary tooling according to claim 4 is characterized in that: The adjusting member (3) comprises two-stage sleeves, namely a first sleeve (31) and a second sleeve (32); one end of the first sleeve (31) is connected to the annular fastener (1), and the other end is nested in the first end of the second sleeve (32); the second end of the second sleeve (32) is rotatably connected to the supporting member (2); the first sleeve (31) is provided with a plurality of first through holes (311) spaced apart along its length direction; and the second sleeve (32) is provided with a second through hole (321) near its first end; The adjusting member (3) further comprises a limiting member (33), wherein the limiting member (33) passes through the first through hole (311) and the second through hole (321) to limit the first sleeve (31).

6. The small-diameter pipe detection auxiliary tooling according to claim 1 is characterized in that: The annular fastener (1) comprises a semicircular first clamp (12) and a second clamp (13); one end of the first clamp (12) and the second clamp (13) are hinged and the other end is detachably connected; the inner walls of the first clamp (12) and the second clamp (13) enclose the accommodating space (11).

7. The small-diameter pipe detection auxiliary tooling according to claim 6 is characterized in that: The annular fastener (1) comprises a plurality of groups of the first clamps (12) and the second clamps (13) arranged in parallel and spaced apart along the extension direction (A), and adjacent first clamps (12) and adjacent second clamps (13) are at least partially welded.

8. The small-diameter pipe detection auxiliary tooling according to claim 6 or 7, characterized in that: The first clamp (12) and the second clamp (13) are each provided with at least one threaded hole (14), a bolt (15) is passed through the threaded hole (14), one end of the bolt (15) protrudes out of the outer edge of the first clamp (12) or the second clamp (13) and is provided with a knob (16), and the other end of the bolt (15) is provided with a limiting block (17), and the limiting block (17) can limit the position of the small-diameter tube (6) to be detected in the accommodating space (11).

9. The small-diameter pipe detection auxiliary tooling according to claim 8, characterized in that: The end surface of the limiting block (17) which faces away from the knob (16) is arc-shaped.

10. A ray detection device for detecting a small-diameter tube (6) to be detected, characterized in that, include: A ray machine (5), wherein the ray machine (5) has an emission angle relative to the small-diameter tube (6) to be inspected; According to any one of claims 1 to 9, the X-ray machine (5) is cooperatively connected with the support member (2) of the small-diameter tube detection auxiliary tooling; The driving support member (2) rotates relative to the adjusting member (3), driving the support surface to move closer to or farther from the accommodating space (11) so that the emission angle changes.

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