Testing tool for scanning inspection system

Abstract

The invention relates to a scanning inspection system test tool (100), which comprises a support frame (1), a mounting assembly (2), a first shielding object (3), a test object (4) and an adjusting assembly (5), and is characterized in that the mounting assembly (2) is movably arranged on the support frame (1), the first shielding object (3) is mounted on the mounting assembly (2), the test object (4) is arranged on one side of the first shielding object (3), and the adjusting assembly (5) is arranged on the support frame (1). The adjusting assembly (5) is configured to adjust the angle of the installation assembly (2) relative to the supporting frame (1), and then the angles of the first shielding object (3) and the testing object (4) relative to the supporting frame (1) are adjusted. According to the invention, by arranging the mounting assembly for mounting the first shielding object, the angle adjustment of the first shielding object and the test object can be realized by adjusting the angle of the mounting assembly relative to the support frame, and each first shielding object does not need to be manually moved during each adjustment, so that the manual labor can be greatly saved, and the manual labor intensity is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of scanning inspection technology, and in particular to a scanning inspection system test tool. Background Art

[0002] At present, scanning and inspection equipment is usually installed in large public places or transportation places such as ports, docks, and airports to scan and inspect people or items coming in and out to prevent illegal and prohibited items from entering or flowing out, posing a threat to social security.

[0003] Scanning inspection equipment needs to be tested for indicators before use. The current test tooling has a simple structure, is inconvenient to use, and has high manual labor intensity.

[0004] It should be noted that the information disclosed in the background technology section of this disclosure is only intended to increase the understanding of the overall background of this disclosure, and should not be regarded as admitting or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. The above statements are only used to provide background technology information related to this disclosure, and do not necessarily constitute the prior art. Summary of the invention

[0005] The disclosed embodiment provides a scanning inspection system test tool, which can effectively save manpower.

[0006] According to one aspect of the present disclosure, a scanning inspection system test tool is provided, comprising:

[0007] Support frame;

[0008] A mounting assembly is movably disposed on the support frame;

[0009] A first shielding object is installed on the installation assembly;

[0010] A test object is disposed on one side of the first shielding object; and

[0011] The adjustment component is configured to adjust the angle of the mounting component relative to the support frame, thereby adjusting the angle of the first shielding object and the test object relative to the support frame.

[0012] In some embodiments, the mounting assembly includes a support and a connector, the support is movably mounted on the support frame, and the first shielding object is mounted on the support via the connector.

[0013] In some embodiments, the support is provided with a first connecting hole, the first shielding object is provided with a first through hole, and the connecting member passes through the first through hole and the first connecting hole to connect the first shielding object and the support.

[0014] In some embodiments, a first opening is provided on the first shielding object, and the first opening extends from the first through hole to an edge of the first shielding object, so that the position of the connecting member relative to the first shielding object can be observed through the first opening.

[0015] In some embodiments, the first opening has a size smaller than a diameter of the first through hole.

[0016] In some embodiments, the installation assembly also includes a connector, the connecting member is provided with a first annular limiting groove, the connector is provided with a plug-in hole, the plug-in hole has a second opening, the connector can be inserted into the first limiting groove through the second opening, and the groove wall of the first limiting groove axially limits the connector.

[0017] In some embodiments, the first covering object is provided with a first through hole, a first opening and a second limiting groove connected to the first through hole, the connecting piece is passed through the first through hole, the first opening extends from the first through hole to the edge of the first covering object, the side of the second limiting groove perpendicular to the extension direction of the first opening is open, and the connector can be inserted into the second limiting groove.

[0018] In some embodiments, in the thickness direction of the first shielding object, the height of the second limiting groove is greater than or equal to the height of the connector.

[0019] In some embodiments, the connector includes a first boss, a third limiting groove is provided inside the second limiting groove, the first boss can be inserted into the third limiting groove, and the groove wall of the third limiting groove prevents the connector from detaching from the second limiting groove in a direction perpendicular to the axis of the connector.

[0020] In some embodiments, the connector includes an operating portion located outside the second limiting groove, and the operating portion is provided with an operating hole.

[0021] In some embodiments, the mounting assembly includes a first locking nut, which is threadably connected to the connector, and the first locking nut is located on a side of the connector away from the first shielding object.

[0022] In some embodiments, the connector is connected to the support via threads.

[0023] In some embodiments, the support includes a base plate and two side plates, the two side plates are respectively connected to opposite sides of the base plate, the first shielding object is installed in the accommodating space surrounded by the base plate and the two side plates, and the two side plates are respectively provided with a baffle extending toward the opposite side.

[0024] In some embodiments, the scanning inspection system test tool further includes a first storage device disposed on the support frame, and the first storage device is configured to store a first shielding object to be used.

[0025] In some embodiments, the first storage device is movably disposed on the support frame so that the first storage device has a first state where it is located directly below the mounting assembly and a second state where it is away from directly below the mounting assembly.

[0026] In some embodiments, the scanning inspection system test fixture further includes a first guide rail and a first slider, the first slider is installed at the bottom of the first storage device, and the first slider is slidably matched with the first guide rail.

[0027] In some embodiments, the scanning inspection system test tooling also includes a lead screw and a rotatable part, the lead screw is threadedly connected to the first storage device, and the rotatable part is installed at the end of the lead screw to drive the lead screw to rotate by rotating the rotatable part, thereby driving the first storage device to move relative to the support frame, wherein the lead screw has a self-locking function.

[0028] In some embodiments, the scanning inspection system test fixture further includes a first limiting structure disposed on the support frame, and the first limiting structure is configured to limit the movement of the first storage device when the first storage device moves to directly below the mounting assembly.

[0029] In some embodiments, the first storage device includes a first lifting assembly and a storage structure, the storage structure is used to store the first covering object, and the first lifting assembly is configured to drive the storage structure to move in a vertical direction.

[0030] In some embodiments, the storage structure includes a limiting rod installed on the first lifting assembly and extending in the vertical direction, the first shielding object is provided with a second through hole closed along the circumferential direction, and the first shielding object is mounted on the limiting rod through the second through hole.

[0031] In some embodiments, the first lifting assembly includes a scissor-type lifting structure.

[0032] In some embodiments, the scanning inspection system test tool further includes a second shielding object, the test object is fixedly mounted on the second shielding object, and the second shielding object is connected to the first shielding object.

[0033] In some embodiments, the scanning inspection system test tooling also includes a conveying device, which is disposed on a support frame and is configured to convey the second covering object and the test object to the bottom of the mounting assembly to facilitate the connection between the second covering object and the first covering object located on the mounting assembly.

[0034] In some embodiments, the conveying device includes a tray for carrying the second shielding object and the test object, the tray is mounted on the support frame, and the tray is movable relative to the mounting assembly.

[0035] In some embodiments, the tray is provided with a third through hole, and the tray is configured to support the second shielding object and allow the test object to be exposed downward through the third through hole.

[0036] In some embodiments, the scanning inspection system test fixture further includes a second limiting structure, and the second limiting structure is configured to limit the movement of the tray when the tray moves to below the mounting assembly.

[0037] In some embodiments, the second limiting structure includes a support plate disposed on the mounting assembly and a positioning column disposed on the tray, the support plate is provided with a fourth through hole, and the positioning column is inserted into the fourth through hole when the tray moves to the bottom of the mounting assembly.

[0038] In some embodiments, the scanning inspection system test fixture further includes a first locking device disposed on the support frame, and the first locking device is configured to fix the tray in a position away from below the mounting assembly.

[0039] In some embodiments, the scanning inspection system test fixture further includes a third shielding object mounted on the mounting assembly, and the thickness of the third shielding object is less than the thickness of the first shielding object.

[0040] In some embodiments, the support includes a receiving space for receiving the first covering object, and the third covering object is installed on the support and is located outside the receiving space.

[0041] In some embodiments, the connecting member extends to the outside of the accommodating space so that the third covering object can be mounted on the support through the connecting member.

[0042] In some embodiments, the mounting assembly includes a second locking nut, which is threadedly connected to the connecting member, and the second locking nut is located on a side of the third shielding object away from the support.

[0043] In some embodiments, the scanning inspection system test tool further includes a second storage device disposed on the support frame, and the second storage device is configured to store a third obstruction.

[0044] In some embodiments, the second storage device includes an openable and closable drawer cabinet, and the third covering object is stored in the drawer cabinet.

[0045] In some embodiments, the scanning inspection system test fixture further includes a second lifting assembly, and the second lifting assembly is configured to drive the support frame to move in a vertical direction.

[0046] In some embodiments, the adjustment assembly includes a rotating shaft and a first driving member, the first driving member is mounted on the support frame, one end of the rotating shaft is connected to the mounting assembly, and the other end of the rotating shaft is drivingly connected to the first driving member, and the first driving member is configured to drive the rotating shaft to rotate relative to the support frame to drive the mounting assembly to rotate relative to the support frame, thereby adjusting the angle of the first obstruction and the test object relative to the support frame.

[0047] In some embodiments, the first driving member includes a reducer, and a dial is provided on the reducer so that the angle of the first shielding object and the test object relative to the support frame can be known through the dial during the adjustment process.

[0048] Based on the above technical solution, the present invention provides a mounting assembly for mounting the first covering object, and can adjust the angle of the first covering object and the test object by adjusting the angle of the mounting assembly relative to the support frame. There is no need to manually move each first covering object during each adjustment, which can greatly save manpower and reduce labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0050] Figure 1 Schematic diagram of the test principles of some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0051] Figure 2 A schematic diagram of the structure of some embodiments of the scanning inspection system test tooling provided by the present disclosure when the second storage device is opened.

[0052] Figure 3 A schematic diagram of the structure of some embodiments of the scanning inspection system test tooling provided by the present disclosure when the second storage device is closed.

[0053] Figure 4 A front view of some embodiments of the scanning inspection system test tool provided by the present disclosure when the second storage device is closed.

[0054] Figure 5 A side view of some embodiments of the scanning inspection system test tool provided by the present disclosure when the second storage device is closed.

[0055] Figure 6 A schematic diagram of the structure of the installation components in some embodiments of the scanning inspection system test tooling provided by the present invention.

[0056] Figure 7 A schematic diagram of the structure of supports and connectors in some embodiments of the scanning inspection system test tooling provided in the present invention.

[0057] Figure 8 A schematic diagram of the structure of connectors in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0058] Fig. 9 A schematic diagram of the structure of connectors in some embodiments of the scanning inspection system test tooling provided in the present invention.

[0059] Fig.10 A schematic diagram of the structure of the first shielding object in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0060] Fig.11 A schematic diagram of the matching structure of a connector and a first shielding object in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0061] Fig.12 A schematic diagram of the matching structure of the connector, the first shielding object and the connecting member in some embodiments of the scanning inspection system test tooling provided in the present invention.

[0062] Fig.13 A schematic diagram of the structure of the first driving member in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0063] Fig.14 A schematic diagram of the structure of the first storage device in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0064] Fig.15 A schematic diagram of the structure before the anti-drop pad is installed in some embodiments of the scanning inspection system test tooling provided by the present invention.

[0065] Fig.16 A schematic diagram of the structure after the anti-drop pad is installed in some embodiments of the scanning inspection system test tooling provided by the present invention.

[0066] Fig.17 A schematic diagram of the structure of the movable installation structure of the first storage device in some embodiments of the scanning inspection system test tooling provided by the present disclosure.

[0067] Fig.18 A schematic structural diagram of the first limiting structure in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0068] Fig.19 A schematic diagram of the partial structure of the movable mounting structure of the first storage device in some embodiments of the scanning inspection system test tooling provided by the present disclosure.

[0069] Fig. 20 A schematic diagram of the installation structure of the second shielding object and the test object in some embodiments of the scanning inspection system test tooling provided by the present invention.

[0070] Fig.21 A schematic diagram of the structure in which a tray moves below a mounting assembly in some embodiments of a scanning inspection system test tooling provided by the present invention.

[0071] Fig. 22A schematic diagram of the structure in which a test object is lifted up by a first storage device in some embodiments of the scanning inspection system test tooling provided by the present disclosure.

[0072] Fig.23 A schematic diagram of the structure of the second guide rail in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0073] Fig.24 A schematic structural diagram of the second limiting structure in some embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0074] Fig.25 A schematic diagram of the structure of some embodiments of the scanning inspection system test tooling provided by the present disclosure in a test state.

[0075] Fig.26 Schematic diagrams of the structures of other embodiments of the scanning inspection system test tooling provided in the present invention.

[0076] Fig. 27 Schematic diagrams of the structures of some further embodiments of the scanning inspection system test tooling provided in the present disclosure.

[0077] In the figure:

[0078] 100. Scanning inspection system test tooling; 201. Radiation source; 202. Detector; 203. Radiation; 300. Vehicle;

[0079] 1. Support frame; 11. First fork; 12. Second fork; 13. Inner leg; 14. Outer leg;

[0080] 2. Mounting assembly; 21. Support; 211. First connecting hole; 212. Bottom plate; 213. Side plate; 214. Stop bar; 215. Second connecting hole; 22. Connector; 221. First limiting groove; 222. First threaded section; 223. Second threaded section; 224. Screw section; 23. Connector; 231. Connecting hole; 232. Second opening; 233. First boss; 234. Operating part; 235. Operating hole; 24. First locking nut; 25. Second locking nut;

[0081] 3. first shielding object; 31. first through hole; 32. first opening; 33. second limiting groove; 34. third limiting groove; 35. second through hole;

[0082] 4. Test object;

[0083] 5. Adjustment assembly; 51. Rotating shaft; 52. First driving member; 521. Hand-cranked wheel; 522. Scale plate; 523. Pointer; 53. Bearing seat;

[0084] 6. First storage device; 61. First lifting assembly; 611. Scissor-type lifting structure; 612. Second driving member; 613. Gear pump; 614. Transmission end; 615. Anti-slip pad; 616. Screw; 617. Unloading valve; 62. Storage structure;

[0085] 7. movable mounting structure; 71. first guide rail; 72. first slider; 73. lead screw; 74. rotatable member; 75. first position limiting structure; 76. stopper;

[0086] 8. Second obstruction;

[0087] 9. Auxiliary structure; 91. Conveying device; 911. Tray; 912. Third through hole; 913. Second guide rail; 92. Second position limiting structure; 921. Support plate; 922. Positioning column; 923. Fourth through hole; 93. First locking device;

[0088] 10. Third shielding object; 20. Second storage device; 30. Base; 40. Second locking device; 50. Storage cabinet; 60, 60', second lifting assembly. DETAILED DESCRIPTION

[0089] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0090] In the description of the present disclosure, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present disclosure.

[0091] refer to Figures 1 to 27 As shown, in some embodiments of the scanning inspection system test fixture 100 provided in the present disclosure, the test fixture includes a support frame 1, a mounting assembly 2, a first shielding object 3, a test object 4 and an adjustment assembly 5, the mounting assembly 2 is movably disposed on the support frame 1, the first shielding object 3 is mounted on the mounting assembly 2, the test object 4 is disposed on one side of the first shielding object 3, and the adjustment assembly 5 is configured to adjust the angle of the mounting assembly 2 relative to the support frame 1, thereby adjusting the angle of the first shielding object 3 and the test object 4 relative to the support frame 1.

[0092] In some embodiments, the test object 4 is fixed to one side of the first shielding object 3 by bolts, structural adhesive, etc.

[0093] The detection capability of the scanning inspection system can be tested by using the test fixture embodiment provided in the present disclosure. The scanning inspection system includes a ray source 201 and a detector 202. After the ray 203 emitted by the ray source 201 penetrates the first shielding object 3 and the test object 4, the detector 202 receives the ray 203 to form a transmission image of the test object 4.

[0094] The test tooling embodiment provided by the present disclosure can at least test the penetration index and contrast sensitivity index of the scanning inspection system.

[0095] The penetration index refers to the thickness of the first shielding object 3 that the ray 203 emitted by the ray source 201 can penetrate, and the image quality of the test object 4 obtained after the ray 203 penetrates the first shielding object 3 needs to meet the preset standard. The thicker the first shielding object 3 that the ray 203 can penetrate, the better the thick material recognition performance of the scanning inspection system.

[0096] The contrast sensitivity index refers to the ability of the ray 203 to distinguish the thickness or diameter of the test object 4 after penetrating the first shielding object 3 of a preset thickness.

[0097] In the embodiment of the present disclosure, the first shielding object 3 has a shielding effect on the ray 203 emitted by the ray source 201. The number of the first shielding objects 3 can be one or more. By adjusting the number of the first shielding objects 3 or replacing the first shielding objects 3 of different thicknesses, the total thickness of the shielding objects penetrated by the ray 203 can be adjusted. For example, the first shielding object 3 can be a steel plate.

[0098] The test object 4 can be a lead brick, a lead block, an iron sheet or an iron wire.

[0099] The embodiment of the present disclosure can make the first shielding object 3 and the test object 4 installed on the mounting assembly 2 movable relative to the support frame 1 by providing a mounting assembly 2 movable relative to the support frame 1, thereby facilitating adjustment of the angle of the first shielding object 3 and the test object 4 relative to the support frame 1 through the adjustment assembly 5 according to the test requirements, and further adjusting the angle of the first shielding object 3 and the test object 4 relative to the scanning and inspection system, so that the first shielding object 3 and the test object 4 match the emission angle of the ray source 201 and the receiving position of the detector 202 in the scanning and inspection system, so that the ray 203 emitted by the ray source 201 can penetrate the first shielding object 3 and the test object 4 and be received by the detector 202, so as to obtain an image of the test object 4.

[0100] The embodiment of the present disclosure provides a mounting assembly 2 for mounting the first shielding object 3. The angle of the first shielding object 3 and the test object 4 can be adjusted by adjusting the angle of the mounting assembly 2 relative to the support frame 1. There is no need to manually move each first shielding object 3 during each adjustment, which can greatly save human labor and reduce labor intensity.

[0101] There are many options for the specific structure of the mounting assembly 2.

[0102] In some embodiments, the mounting assembly 2 includes a support 21 and a connector 22 . The support 21 is movably mounted on the support frame 1 , and the first shielding object 3 is mounted on the support 21 via the connector 22 .

[0103] By providing the support 21 , the first shielding object 3 can be mounted on the support 21 , and the connecting member 22 serves to connect the first shielding object 3 and the support 21 .

[0104] The connecting member 22 can be a bolt, a pin or a wire rope.

[0105] The structure of the support 21 can be flexibly set, as long as the support 21 is movable relative to the support frame 1 and has a place to install the first shielding object 3. In some embodiments, the structure of the support 21 is configured to be rotatable relative to the support frame 1.

[0106] In some embodiments, the support 21 is provided with a first connection hole 211 , the first shielding object 3 is provided with a first through hole 31 , and the connecting member 22 passes through the first through hole 31 and the first connection hole 211 to connect the first shielding object 3 and the support 21 .

[0107] By providing the first connection hole 211 on the support 21 and the first through hole 31 on the first shielding object 3, the connection between the first shielding object 3 and the support 21 can be achieved by passing the connecting member 22 through the first through hole 31 and the first connection hole 211. This connection method is easy to implement, simple to operate, and has good connection stability and reliability.

[0108] Moreover, the connection between the first covering 3 and the support 21 is achieved by passing the connecting member 22 through the first through hole 31 and the first connecting hole 211, which is also conducive to adapting to the situation of multiple first coverings 3. Multiple first coverings 3 can be stacked and installed on the support 21 by passing the connecting member 22 through the first through holes 31 on multiple first coverings 3. There is no increase in the number of installation steps or difficulty of installation due to the increase in the number of first coverings 3.

[0109] In some embodiments, the support 21 is provided with two first connection holes 211 , the first shielding object 3 is provided with two first through holes 31 , and the mounting assembly 2 includes two connectors 22 .

[0110] By providing two first connection holes 211 , two through holes and two connection members 22 , the support 21 and the first shielding object 3 can be connected via the two connection members 22 , thereby effectively enhancing the connection stability between the first shielding object 3 and the support 21 .

[0111] In some embodiments, a first opening 32 is disposed on the first shielding object 3 . The first opening 32 extends from the first through hole 31 to an edge of the first shielding object 3 , so that the position of the connecting member 22 relative to the first shielding object 3 can be observed through the first opening 32 .

[0112] By providing the first opening 32, the connector 22 inserted into the first through hole 31 can be seen through the first opening 32 from one side of the first shielding object 3, and the relative position of the connector 22 and the first shielding object 3 can be observed. When there are a large number of first shielding objects 3, the insertion position of the connector 22 can be determined through the first opening 32, which improves the convenience of operation.

[0113] In addition, by providing the first opening 32 to observe the position of the connector 22 , the position of the first limiting groove 221 to be introduced later can also be conveniently observed to select the timing of plugging in the connector 23 to be introduced later.

[0114] In some embodiments, the size of the first opening 32 is smaller than the diameter of the first through hole 31. By setting the size of the first opening 32 smaller than the diameter of the first through hole 31, it is possible to effectively prevent the first shielding object 3 from being separated from the connecting member 22 through the first opening 32, causing the first shielding object 3 to accidentally fall off, thereby affecting the safety of the test fixture.

[0115] In some embodiments, the installation assembly 2 also includes a connector 23, the connector 22 is provided with a first annular limiting groove 221, the connector 23 is provided with a plug-in hole 231, the plug-in hole 231 has a second opening 232, the connector 23 can be inserted into the first limiting groove 221 through the second opening 232, and the groove wall of the first limiting groove 221 axially limits the connector 23.

[0116] By providing the plug-in connector 23, after the plug-in connector 23 is inserted into the first limiting groove 221 of the connector 22 through the second opening 232, the axial limitation of the plug-in connector 23 by the groove wall of the first limiting groove 221 can be achieved to realize the relative stability of the plug-in connector 23 and the connector 22 in the axial direction, thereby axially limiting the first obstruction 3 connected to the connector 22 by the plug-in connector 23.

[0117] In some embodiments, the first covering 3 is provided with a second limiting groove 33 connected to the first through hole 31, the first through hole 31 and the first opening 32 are provided on the first covering 3, the connecting member 22 is passed through the first through hole 31, the first opening 32 extends from the first through hole 31 to the edge of the first covering 3, and the side of the second limiting groove 33 perpendicular to the extension direction of the first opening 32 is open, and the connector 23 can be inserted into the second limiting groove 33.

[0118] By arranging the second limiting groove 33 to communicate with the first through hole 31 , the insertion of the plug connector 23 into the first limiting groove 221 and the insertion of the plug connector 23 into the second limiting groove 33 can be completed simultaneously.

[0119] Moreover, the side surface of the second limiting groove 33 which is perpendicular to the extension direction of the first opening 32 is open, and the connector 23 can be inserted into the second limiting groove 33 from the side surface of the first shielding member 3, while maintaining the same insertion direction as that of the connector 23 into the annular first limiting groove 221, thereby facilitating the simultaneous completion of the insertion of the connector 23 into the first limiting groove 221 and the insertion of the connector 23 into the second limiting groove 33.

[0120] In some embodiments, in the thickness direction of the first shielding member 3 , the height of the second limiting groove 33 is greater than or equal to the height of the connector 23 .

[0121] By making the height of the second limiting groove 33 greater than or equal to the height of the connector 23, the connector 23 can be completely accommodated in the second limiting groove 33. When the two first shielding objects 3 are stacked, it can be effectively avoided that the connector 23 cannot be inserted into the second limiting groove 33 from the side due to the height of the connector 23 being higher than the height of the second limiting groove 33.

[0122] In some embodiments, the connector 23 includes a first boss 233, and a third limiting groove 34 is provided inside the second limiting groove 33. The first boss 233 can be inserted into the third limiting groove 34, and the groove wall of the third limiting groove 34 prevents the connector 23 from detaching from the second limiting groove 33 in a direction perpendicular to the axis of the connector 22.

[0123] In some embodiments, when the plug-in component 23 is inserted into the second limiting groove 33 , the first boss 233 faces and fits the third limiting groove 34 .

[0124] The third limiting groove 34 and the first boss 233 can be provided to effectively prevent the connector 23 from being disengaged from the second limiting groove 33 in a direction perpendicular to the axis of the connector 22 after being inserted into the first limiting groove 221 and the second limiting groove 33, thereby causing limiting failure and affecting safety of use.

[0125] In some embodiments, the plug connector 23 includes an operating portion 234 located outside the second limiting groove 33 , and the operating portion 234 is provided with an operating hole 235 .

[0126] By providing the operating portion 234 outside the second limiting groove 33, it is convenient for the operator to complete the operation of inserting and removing the plug connector 23 by grasping the operating portion 234. The operating hole 235 is provided on the operating portion 234, so that the operator can put a finger into the operating hole 235 to conveniently remove the plug connector 23 from the second limiting groove 33.

[0127] In some embodiments, the mounting assembly 2 includes a first locking nut 24 , which is threadedly connected to the connector 22 , and the first locking nut 24 is located on a side of the connector 23 away from the first shielding object 3 .

[0128] By connecting the first locking nut 24 to the connector 22, the axial relative position of the connector 22 and the first shielding object 3 can be doubly protected on the basis of the limitation of the plug-in component 23, thereby preventing the connector 22 and the first shielding object 3 from relative movement in the axial direction.

[0129] In some embodiments, the connector 22 is connected to the support 21 via threads.

[0130] The connecting member 22 is connected to the support 21 by threads, so that the connecting member 22 and the support 21 can be kept relatively fixed in the axial direction when the connecting member 22 and the support 21 do not rotate relative to each other.

[0131] In some embodiments, the support 21 includes a base plate 212 and two side plates 213, the two side plates 213 are respectively connected to the opposite sides of the base plate 212, the first shielding 3 is installed in the accommodating space surrounded by the base plate 212 and the two side plates 213, and the two side plates 213 are respectively provided with a baffle 214 extending toward the opposite side.

[0132] By providing the bottom plate 212 and the two side plates 213 , the support 21 can be made into a U-shape, which is convenient for installing the first shielding object 3 .

[0133] By providing the blocking bars 214 extending toward the opposite sides on the two side plates 213, the first shielding object 3 can be effectively prevented from falling off the support 21. The width of the blocking bars 214 does not need to be too large, as long as it can form a limiting effect.

[0134] In some embodiments, the scanning inspection system test fixture 100 further includes a first storage device 6 disposed on the support frame 1 , and the first storage device 6 is configured to store the first shielding object 3 to be used.

[0135] By providing the first storage device 6 , the first shielding objects 3 to be used can be stored, so that the number of the first shielding objects 3 installed on the installation assembly 2 can be increased or decreased according to the test requirements.

[0136] In some embodiments, the first storage device 6 stores a plurality of stacked first shielding objects 3 , and the plurality of first shielding objects 3 may be, for example, a plurality of steel plates of the same specification.

[0137] By providing a dedicated first storage device 6, it is possible to avoid the first shielding object 3 being randomly placed, shielding the rays 203, and affecting the test quality.

[0138] In some embodiments, the first storage device 6 is movably disposed on the support frame 1 so that the first storage device 6 has a first state of being located directly below the mounting assembly 2 and a second state of being away from directly below the mounting assembly 2 .

[0139] By setting the first storage device 6 to be movable relative to the support frame 1, the position of the first storage device 6 can be moved according to the test requirements, for example, the first storage device 6 can have a first state and a second state. In the first state, the first storage device 6 is located directly below the mounting component 2, which is convenient for removing excess first shielding material 3 from the mounting component 2, or installing the first shielding material 3 on the mounting component 2; in the second state, the first storage device 6 is away from directly below the mounting component 2 to avoid the first storage device 6 being located on the emission path of the ray 203 and thus blocking the test object 4, thereby affecting the accuracy of the test.

[0140] There are many options for the position away from directly below the mounting assembly 2 , that is, the specific position of the first storage device 6 in the second state can be flexibly set, as long as the first storage device 6 does not block the rays 203 emitted by the ray source 201 .

[0141] In some embodiments, the scanning inspection system test fixture 100 further includes a first guide rail 71 and a first slider 72 . The first slider 72 is installed at the bottom of the first storage device 6 , and the first slider 72 is slidably matched with the first guide rail 71 .

[0142] By providing the first guide rail 71 and the first slider 72 , the movement of the first storage device 6 can be guided and restricted, thereby improving the accuracy of switching the first storage device 6 between the first state and the second state.

[0143] The first guide rail 71 can extend in the horizontal direction to enable the first storage device 6 to move in the horizontal direction. In the second state, the first storage device can move to one side of the mounting component 2. This method is conducive to quickly switching between directly below the mounting component 2 and the side of the mounting component 2.

[0144] In some embodiments, the scanning inspection system test fixture 100 also includes a screw 73 and a rotatable member 74, the screw 73 is connected to the first storage device 6 by a threaded connection, and the rotatable member 74 is installed at the end of the screw 73 to drive the screw 73 to rotate by rotating the rotatable member 74, thereby driving the first storage device 6 to move relative to the support frame 1, such as horizontal movement, wherein the screw 73 has a self-locking function.

[0145] By setting up the lead screw 73 and the rotatable part 74, the lead screw 73 can be driven to rotate by rotating the rotatable part 74, and then the first storage device 6 can be driven to slide along the first guide rail 71 through the threaded cooperation between the lead screw 73 and the first storage device 6, thereby realizing the position movement of the first storage device 6.

[0146] The lead screw 73 has a self-locking function. After the first storage device 6 reaches the preset position, the self-locking function of the lead screw 73 can keep the position of the first storage device 6 stable to prevent the first storage device 6 from accidentally moving and affecting the subsequent loading and unloading of the first covering object 3.

[0147] In some embodiments, the scanning inspection system test fixture 100 also includes a first limiting structure 75 disposed on the support frame 1, and the first limiting structure 75 is configured to limit the movement of the first storage device 6 when the first storage device 6 moves to directly below the mounting assembly 2.

[0148] By setting the first limiting structure 75, the movement of the first storage device 6 can be limited when the first storage device 6 moves to directly below the mounting assembly 2, providing reminder information for the movement position of the first storage device 6 to prevent the first storage device 6 from moving excessively, thereby effectively improving the accuracy of the movement of the first storage device 6.

[0149] There are many options for the specific structural form of the first limiting structure 75.

[0150] For example, in some embodiments, the first limiting structure 75 may include a limiting bar, which may be fixedly disposed on the support frame 1, for example, at the end of the maximum movement range of the first storage device 6, so as to prevent the first storage device 6 from excessive movement and enable the first storage device 6 to stop accurately directly below the mounting assembly 2.

[0151] The limiting strip can be made of a rubber strip or other soft materials to avoid collision with the first storage device 6 and causing position displacement of the first shielding object 3 thereon.

[0152] In some embodiments, the first storage device 6 includes a first lifting assembly 61 and a storage structure 62 . The storage structure 62 is used to store the first covering object 3 . The first lifting assembly 61 is configured to drive the storage structure 62 to move in a vertical direction.

[0153] By setting up the first lifting component 61, the storage structure 62 for storing the first covering 3 can be driven to move in the vertical direction. After the first storage device 6 moves to directly below the installation component 2, the distance between the first storage structure 62 and the installation component 2 can be adjusted by the first lifting component 61 to facilitate the loading and unloading of the first covering 3.

[0154] In some embodiments, the storage structure 62 includes a limiting rod installed on the first lifting assembly 61 and extending in the vertical direction. The first covering object 3 is provided with a second through hole 35 closed along the circumferential direction. The first covering object 3 is mounted on the limiting rod through the second through hole 35.

[0155] By setting the limiting rod and the second through hole 35, the first covering 3 can be easily fixed and stored. The structure is simple and easy to operate. The connection between the first covering 3 and the installation component 2 can also be conveniently achieved by cooperating with the connection method between the first covering 3 and the installation component 2.

[0156] The shape of the limiting rod matches that of the second through hole 35 so that the limiting rod can be inserted into the second through hole 35. In some embodiments, the limiting rod can be cylindrical and the second through hole 35 can be circular. This shape can reduce the difficulty of inserting the limiting rod into the second through hole 35 and improve assembly efficiency.

[0157] Of course, in other embodiments, the limiting rod and the second through hole 35 may also be square or triangular.

[0158] There are many options for the specific structure of the first lifting assembly 61.

[0159] In some embodiments, the first lifting assembly 61 includes a scissor-type lifting structure 611. This structure occupies a small area, is responsive, and has high stability during the lifting process.

[0160] In some embodiments, the scanning inspection system test fixture 100 further includes a second shielding object 8 , the test object 4 is fixedly mounted on the second shielding object 8 , and the second shielding object 8 is used to be connected to the first shielding object 3 .

[0161] By providing the second shielding object 8 , the test object 4 can be pre-fixed and connected to the second shielding object 8 , eliminating the operation of connecting the test object 4 with the second shielding object 8 when assembling the test tooling, thereby effectively improving the efficiency of on-site assembly.

[0162] The test object 4 and the second shielding object 8 may be connected by bonding with an adhesive, or may be connected by bolts or pins.

[0163] The material of the second shielding 8 may be the same as that of the first shielding 3. The thickness of the second shielding 8 may be the same as that of the first shielding 3, or may be different.

[0164] In some embodiments, the second shielding object 8 and the first shielding object 3 may be steel plates of the same specification.

[0165] In some embodiments, the scanning inspection system test tooling 100 also includes a conveying device 91, which is disposed on the support frame 1. The conveying device 91 is configured to convey the second covering object 8 and the test object 4 to the bottom of the mounting assembly 2 to facilitate the connection between the second covering object 8 and the first covering object 3 located on the mounting assembly 2.

[0166] By setting up the conveying device 91, the second covering object 8 and the test object 4 can be first set at a position away from the installation component 2 to prevent the second covering object 8 and the test object 4 from affecting the connection between the first covering object 3 and the installation component 2. After the connection between the first covering object 3 and the installation component 2 is completed, the second covering object 8 and the test object 4 can be conveyed to the bottom of the installation component 2 through the conveying action of the conveying device 91, so as to facilitate the connection between the second covering object 8 and the first covering object 3 located on the installation component 2, thereby realizing the connection between the test object 4 and the first covering object 3.

[0167] There are many options for the specific structure of the conveying device 91.

[0168] In some embodiments, the conveying device 91 includes a tray 911 for carrying the second shielding object 8 and the test object 4 . The tray 911 is installed on the support frame 1 , and the tray 911 is movable relative to the mounting assembly 2 .

[0169] By providing the tray 911 , the second shielding object 8 and the test object 4 can be driven to move by the movement of the tray 911 relative to the mounting assembly 2 .

[0170] In some embodiments, the tray 911 is provided with a third through hole 912, and the tray 911 is configured to support the second shielding object 8 and allow the test object 4 to be exposed downward through the third through hole 912. The second shielding object 8 is supported and limited by the tray 911 to prevent the second shielding object 8 and the test object 4 from falling off the tray 911.

[0171] By setting the third through hole 912, the test object 4 can be exposed downward through the third through hole 912, so that after the second covering object 8 and the test object 4 reach directly below the mounting assembly 2, the test object 4 is supported by the first storage device 6 located below, and the second covering object 8 can leave the tray 911 without affecting the return of the tray 911.

[0172] In some embodiments, the scanning inspection system test fixture 100 further includes a second limiting structure 92 , which is configured to limit the movement of the tray 911 when the tray 911 moves to below the mounting assembly 2 .

[0173] By setting a second limiting structure 92, the movement of the tray 911 can be limited when the tray 911 moves to the bottom of the installation component 2 to prevent the tray 911 from moving excessively, so that the tray 911 can be accurately stopped under the installation component 2, effectively improving the accuracy of the movement of the tray 911.

[0174] In some embodiments, the second limiting structure 92 includes a support plate 921 arranged on the installation component 2 and a positioning column 922 arranged on the tray 911, and the support plate 921 is provided with a fourth through hole 923. When the tray 911 moves to the bottom of the installation component 2, the positioning column 922 is inserted into the fourth through hole 923.

[0175] When the tray 911 moves to the bottom of the mounting assembly 2 , the positioning column 922 is inserted into the fourth through hole 923 , and the support plate 921 can block the continued movement of the tray 911 , thereby ensuring the accuracy of the position where the tray 911 stops.

[0176] The shapes of the positioning post 922 and the fourth through hole 923 match. For example, the positioning post 922 may be a cylinder, and the fourth through hole 923 may be a circle, which can reduce the difficulty of inserting the positioning post 922 into the fourth through hole 923, avoid premature limitation caused by insertion failure, and affect the movement accuracy of the tray 911.

[0177] Of course, in other embodiments, the positioning column 922 and the fourth through hole 923 may also be square or triangular.

[0178] In some embodiments, the scanning inspection system test fixture 100 further includes a first locking device 93 disposed on the support frame 1 , and the first locking device 93 is configured to fix the tray 911 at a position away from below the mounting assembly 2 .

[0179] By setting the first locking device 93, the tray 911 can be fixed in a position away from the bottom of the installation component 2, preventing the tray 911 from accidentally moving and causing interference with the installation component 2 and the first covering object 3, the second covering object 8 and the test object 4 installed on the installation component 2, thereby affecting the normal progress of the test.

[0180] In some embodiments, the scanning inspection system test fixture 100 further includes a third shielding object 10 installed on the mounting assembly 2 , and the thickness of the third shielding object 10 is less than the thickness of the first shielding object 3 .

[0181] By setting the third covering 10 with a thickness smaller than that of the first covering 3 , the thickness requirement can be met by adding the third covering 10 when the tested thickness is not an integer multiple of the first covering 3 .

[0182] In some embodiments, the third shielding 10 may be a thin steel plate having the same specifications as the first shielding 3 except that the thickness is thinner than the first shielding 3. In some embodiments, the third shielding 10 replaces part of the first shielding 3 or the second shielding 8 for testing.

[0183] In some embodiments, similar to Fig.10 The third shielding member 10 is also provided with the same structure as the first through hole 31, the first opening 32 and the second through hole 35, but is not provided with the same structure as the second limiting groove 33 and the third limiting groove 34, so as to simplify the structure of the third shielding member 10. The third shielding member 10 of this structure is fixed to the connecting member 22 by the first locking nut 24 and the second locking nut 25.

[0184] In some embodiments, the support 21 includes a receiving space for receiving the first shielding object 3, and the third shielding object 10 is installed on the support 21 and is located outside the receiving space.

[0185] By installing the third covering 10 on the support 21 and situating it outside the accommodating space, the third covering 10 can be set at a position different from the first covering 3, which is easy to distinguish. It is also convenient to temporarily increase or decrease the number of third coverings 10 as needed without affecting the installation of the first covering 3, thereby reducing the disassembly and assembly of the first covering 3.

[0186] When the third shielding object 10 is not in use, it is stored in the storage space (the second storage device 20 mentioned later). When the third shielding object 10 is needed, it can be taken out of the storage space and then installed on the support 21 through the connecting member 22.

[0187] In some embodiments, the connecting member 22 extends to the outside of the accommodating space, so that the third covering object 10 is installed on the support 21 through the connecting member 22 .

[0188] By extending the connecting piece 22 to the outside of the accommodating space, the third covering 10 can be installed on the support 21 through the connecting piece 22, and there is no need to add a new connecting piece for connecting the third covering 10 with the support 21. This not only saves the number of connecting pieces, but also simplifies the connection operation and improves the efficiency of disassembly and assembly.

[0189] In some embodiments, the mounting assembly 2 includes a second locking nut 25 , which is threadedly connected to the connecting member 22 , and the second locking nut 25 is located on a side of the third shielding object 10 away from the support 21 .

[0190] By providing the second locking nut 25 , an additional axial limit can be provided on the basis of the axial limit achieved by the threaded connection between the connector 22 and the support 21 , thereby achieving double protection and preventing the connector 22 from axially moving.

[0191] In some embodiments, the scanning inspection system test fixture 100 further includes a second storage device 20 disposed on the support frame 1 , and the second storage device 20 is configured to store the third shielding object 10 .

[0192] By providing the second storage device 20, a dedicated storage space can be provided for the third covering 10, thereby preventing the third covering 10 from being stored together with the first covering 3 or the second covering 8 and making it inconvenient to access.

[0193] In some embodiments, the second storage device 20 includes an openable and closable drawer cabinet, and the third covering object 10 is stored in the drawer cabinet.

[0194] By providing an openable and closable drawer cabinet, the third shielding object 10 can be easily accessed. When the drawer cabinet is opened, the third shielding object 10 can be taken out or stored; after taking out or storing, the drawer cabinet can be closed to prevent the third shielding object 10 from being lost or the opened drawer cabinet from interfering with or colliding with other items. The third shielding object 10 is thin and light, and the third shielding object 10 can be taken out or stored manually.

[0195] In some embodiments, the scanning inspection system test fixture 100 further includes a second lifting assembly 60 , and the second lifting assembly 60 is configured to drive the support frame 1 to move in a vertical direction.

[0196] By providing the second lifting assembly 60 , the support frame 1 can be moved in the vertical direction, thereby adjusting the height of the support frame 1 from the ground to meet the testing requirements at different heights.

[0197] In some embodiments, the adjustment component 5 includes a rotating shaft 51 and a first driving member 52. The first driving member 52 is installed on the support frame 1. One end of the rotating shaft 51 is connected to the mounting component 2, and the other end of the rotating shaft 51 is drivingly connected to the first driving member 52. The first driving member 52 is configured to drive the rotating shaft 51 to rotate relative to the support frame 1, so as to drive the mounting component 2 to rotate relative to the support frame 1, thereby adjusting the angle of the first obstruction 3 and the test object 4 relative to the support frame 1.

[0198] By setting the rotating shaft 51 and the first driving member 52, the rotating shaft 51 can be driven to rotate by the first driving member 52, thereby driving the installation component 2 to rotate, thereby achieving angle adjustment of the first shielding object 3 and the test object 4, so that the first shielding object 3 and the test object 4 match the emission direction of the rays emitted by the ray source.

[0199] In some embodiments, the first driving member 52 includes a reducer, and a dial 522 is provided on the reducer so that the angles of the first shielding object 3 and the test object 4 relative to the support frame 1 can be known through the dial 522 during the adjustment process.

[0200] By setting a dial 522 on the reducer, the operator can promptly know the angles of the first shielding object 3 and the test object 4 relative to the support frame 1 through the dial 522 during the adjustment process to avoid adjusting the angle too large or too small, which is beneficial to improving the adjustment efficiency.

[0201] The following is combined with Figures 1 to 27 , the structure and working process of an embodiment of the scanning inspection system test tooling provided by the present disclosure are described:

[0202] like Figure 1 As shown, when using the scanning inspection system test fixture embodiment provided by the present invention for testing, the scanning inspection system test fixture 100 is placed on the vehicle 300, and the scanning inspection system includes a ray source 201 and a detector 202. The height and angle of the first shielding object 3 and the test object 4 on the scanning inspection system test fixture 100 are adjusted, for example, the first shielding object 3 and the test object 4 are placed at the center of the beam of ray 203 emitted by the ray source 201; the ray 203 penetrates the first shielding object 3 and the test object 4, and the detector 202 can obtain an image of the test object 4 after receiving the transmitted ray. In actual use, by adjusting the angle between the first shielding object 3 and the test object 4, one surface of the first shielding object 3 can be made perpendicular to the center line of the beam of ray 203. For ease of explanation, Figure 1 The ray beam on the fan-shaped surface is represented by a line segment.

[0203] When the image quality of the test object 4 meets the preset standard, the penetration index of the scanning inspection system can be obtained according to the thickness of the first shielding object 3. When the image quality of the test object 4 does not meet the preset standard, the thickness of the first shielding object 3 can be changed by the test fixture 100 of the present disclosure, and the image of the test object 4 can be obtained again, and the penetration index of the scanning inspection system can be obtained repeatedly.

[0204] When the thickness of the first shielding object 3 is fixed to a preset thickness, the image quality of the test object 4 obtained can measure the reaction sensitivity index of the scanning inspection system.

[0205] like Figure 2 As shown, the scanning inspection system test tool 100 may include a support frame 1, a mounting assembly 2, a first shielding object 3, a test object 4, an adjustment assembly 5, a first storage device 6, a movable mounting structure 7, a second shielding object 8, an auxiliary structure 9, a third shielding object 10, a second storage device 20, a base 30, a second locking device 40 and a storage cabinet 50.

[0206] The support frame 1 can be in various structural forms. For ease of explanation, in the accompanying drawings and subsequent descriptions, a rectangular support frame 1 is selected as an example. The support frame 1 is a frame structure, such as Figure 2 As shown, it has a left-right length direction (longitudinal direction), a front-back width direction (transverse direction) and an upper-lower height direction. The mounting assembly 2 is arranged in the middle position of the length direction of the support frame 1. The first shielding object 3 and the test object 4 are installed on the mounting assembly 2. The first storage device 6 is arranged below the mounting assembly 2. The adjustment assembly 5 is located on the right side of the mounting assembly 2. The auxiliary structure 9 is located on the right side of the mounting assembly 2 and below the adjustment assembly 5. The second storage device 20 is located below the auxiliary structure 9. The third shielding object 10 is arranged in the second storage device 20. The storage cabinet 50 is located below the second storage device 20. The shape of the base 30 is the same as that of the support frame 1, and the base 30 is supported below the support frame 1.

[0207] like Figure 3 As shown, the front and right sides of the support frame 1 are respectively provided with a first fork opening 11 and a second fork opening 12, so that a forklift can remove the support frame 1 from the base 30 or place it on the base 30 through the first fork opening 11 from the front side of the support frame 1, and can also remove the support frame 1 from the base 30 or place it on the base 30 from the right side of the support frame 1 through the second fork opening 12.

[0208] The mounting assembly 2 is rotatably mounted on the support frame 1, for example, the mounting assembly 2 can rotate along an axis parallel to the length direction of the support frame 1. The first shielding object 3 and the second shielding object 8 are both mounted on the mounting assembly 2. The test object 4 is fixedly mounted on the second shielding object 8 by bolts and / or glue. The adjustment assembly 5 can adjust the angle of the mounting assembly 2 relative to the support frame 1, so as to adjust the angle of the first shielding object 3, the second shielding object 8 and the test object 4 relative to the support frame 1.

[0209] like Figure 4 and Fig.14 As shown, the first storage device 6 includes a first lifting assembly 61 and a storage structure 62, and the storage structure 62 can be used to store the first shielding object 3. The storage structure 62 is installed on the top of the first lifting assembly 61, and the first lifting assembly 61 can drive the storage structure 62 to move in the height direction.

[0210] The first storage device 6 is movably mounted on the support frame 1 via a movable mounting structure 7. The auxiliary structure 9 can drive the tray to carry the second shielding object 8 and the test object 4 to move on the support frame 1, so as to connect the second shielding object 8 and the test object 4 to the mounting assembly 2.

[0211] A second storage device 20 for storing the third shielding object 10 is disposed on the right side of the support frame 1. The thickness of the third shielding object 10 may be less than the thickness of the first shielding object 3.

[0212] like Figure 2 and Figure 3 As shown, the second storage device 20 is a drawer cabinet that can be opened and closed.

[0213] The base 30 is arranged at the bottom of the support frame 1, and the base 30 is connected and fixed to the support frame 1 through the second locking device 40. The second locking device 40 can be a rotary lock. The rotary lock can be installed on the top of the base 30, and the support frame 1 is provided with a corresponding hole. By aligning the rotary lock with the hole, the support frame 1 and the base 30 can be quickly positioned and fixedly connected.

[0214] A storage cabinet 50 is provided below the second storage device 20 , and tools such as electric drills and wrenches can be stored in the storage cabinet 50 .

[0215] like Figure 6 and Figure 7 As shown, the installation assembly 2 includes a support 21, a connecting member 22, a plug-in member 23, a first locking nut 24 and a second locking nut 25.

[0216] The support 21 includes a bottom plate 212 and two side plates 213. The two side plates 213 are respectively connected to the left and right sides of the bottom plate 212, and the bottom plate 212 and the two side plates 213 are connected to form a U-shaped structure. The two ends of the two side plates 213 are respectively provided with blocking bars 214 extending relative to each other by a certain length to prevent the first shielding object 3 connected to the bottom plate 212 from being separated from the front and rear sides between the two side plates 213.

[0217] The bottom plate 212 is provided with a first connection hole 211 and a second connection hole 215. A plurality of first shielding objects 3 are stacked and placed on the bottom plate 212, and the connector 22 passes through the first connection hole 211 and the plurality of first shielding objects 3. The plug-in connector 23 is plugged into the connector 22, and the plug-in connector 23 is located at one end of the connector 22 away from the bottom plate 212. The first locking nut 24 is located at one side of the plug-in connector 23 away from the first shielding object 3. On the basis of realizing axial limitation of the plug-in connector 23, the first locking nut 24 cooperates with the thread on the connector 22 to realize secondary axial limitation.

[0218] At the end of the bottom plate 212 away from the first shielding object 3, the connecting member 22 is connected to the bottom plate 212 by threads, which can realize the axial limit of the connecting member 22; on this basis, the connecting member 22 is also provided with a second locking nut 25 for secondary axial limit. The thinner third shielding object 10 can be installed on the outer side of the bottom plate 212 away from the first shielding object 3, and is limited by the second locking nut 25.

[0219] like Figure 8As shown, the connecting member 22 includes a first thread segment 222, a second thread segment 223 and a screwing segment 224, and the first thread segment 222 is located between the second thread segment 223 and the screwing segment 224. The thread diameter of the first thread segment 222 is greater than the thread diameter of the second thread segment 223. The thread length of the first thread segment 222 is greater than the thread length of the second thread segment 223. The thread pitch of the first thread segment 222 is greater than the thread pitch of the second thread segment 223. A first limiting groove 221 is provided between the first thread segment 222 and the second thread segment 223. The first limiting groove 221 is annular, and the diameter of the connecting member 22 at the first limiting groove 221 is smaller than the diameter of the connecting member 22 at the first thread segment 222 and the second thread segment 223. The screwing segment 224 can be in the shape of a hexagonal head, so as to be connected to an operating tool for screwing operation.

[0220] like Fig. 9 As shown, the plug connector 23 includes a first boss 233 and an operating portion 234 . The first boss 233 is provided with a plug hole 231 and a second opening 232 . The plug hole 231 and the second opening 232 are connected to form a U-shaped hole structure. The thickness of the first boss 233 is greater than that of the operating portion 234 .

[0221] The operating portion 234 is provided with an operating hole 235. The operating hole 235 may be a circular hole.

[0222] like Fig.10 As shown, the first shielding member 3 is provided with two first through holes 31 and two second through holes 35, and the first through holes 31 and the second through holes 35 are arranged at intervals in the circumferential direction. Fig.10 In the case of the square shape shown, two first through holes 31 are disposed at two opposite corners of the first shielding object 3 , and two second through holes 35 are disposed at the other two opposite corners of the first shielding object 3 .

[0223] The first shielding member 3 is also provided with a first opening 32, which is connected to the first through hole 31 to form a U-shaped hole structure. The first opening 32 extends to the side of the first shielding member 3. The opening directions of the two first openings 32 are opposite, and they extend to the opposite sides of the first shielding member 3. The second through hole 35 is a circumferentially closed circular hole.

[0224] The first shielding member 3 is further provided with a second limiting groove 33, which is in communication with both the first through hole 31 and the first opening 32. A third limiting groove 34 is provided inside the second limiting groove 33, and the volume of the third limiting groove 34 is smaller than that of the second limiting groove 33. Moreover, the third limiting groove 34 extends from the bottom of the second limiting groove 33 in a direction away from the second limiting groove 33.

[0225] like Fig.11As shown, the first boss 233 of the connector 23 is inserted into the second limiting groove 33, and the portion of the first boss 233 protruding relative to the operating portion 234 is inserted into the third limiting groove 34, so that the movement of the first boss 233 is limited by the groove wall of the third limiting groove 34, and the second limiting groove 33 can accommodate the entire first boss 233. The operating portion 234 is located outside the second limiting groove 33 for the operator to hold. When the connector 23 needs to be pulled out, the operating hole 235 can be used to allow the operator's fingers to hook the operating hole 235, thereby improving the convenience of gripping and operation.

[0226] like Fig.12 As shown, when the connector 23 is inserted into the first covering 3 and the connector 22, the connector 23 is inserted into the first limiting groove 221 of the connector 22 through the plug-in hole 231 and the second opening 232. At the same time, the first boss 233 of the connector 23 is inserted into the second limiting groove 33 of the first covering 3, and the protruding portion of the first boss 233 relative to the operating portion 234 is inserted into the third limiting groove 34. In this way, the connector 23 can be prevented from detaching from the first covering 3 in a direction perpendicular to the axis of the connector 22 through the cooperation between the connector 23 and the first covering 3, thereby achieving relative fixation of the connector 23 and the first covering 3 in a direction perpendicular to the axis of the connector 22. The connector 23 is inserted into the first limiting groove 221 of the connector 22 through the plug hole 231 and the second opening 232. The groove wall of the first limiting groove 221 can limit the axial movement of the connector 23, so that the connector 23 and the connector 22 can be relatively fixed in the axial direction of the connector 22. In this way, the connector 23, the first shielding object 3 and the connector 22 are relatively fixed in the directions parallel to and perpendicular to the axis of the connector 22.

[0227] For the sake of safety, a first locking nut 24 may also be installed on the connecting member 22 to enhance the axial limiting effect.

[0228] like Figure 2 , Figures 5 to 7 and Fig.13 As shown, the adjustment assembly 5 includes a rotating shaft 51, a first driving member 52 and a bearing seat 53. The outer sides of the two side plates 213 on the support 21 are rotatably connected to the support frame 1 through the rotating shaft 51 respectively. There are two rotating shafts 51. The first driving member 52 is rotatably connected to one of the rotating shafts 51. The bearing seat 53 is installed on the support frame 1. The end of the other rotating shaft 51 away from the support 21 is connected to the bearing seat 53. The first driving member 52 drives the rotating shaft 51 connected thereto to rotate, driving the support 21 and the other rotating shaft 51 to rotate relative to the support frame 1, thereby adjusting the angles of the first covering object 3, the second covering object 8 and the test object 4 on the support 21.

[0229] like Fig.13As shown, the first driving member 52 includes a reducer, a housing of the reducer is provided with a dial 522, and a pointer 523 is provided on the dial 522. By observing the position of the pointer 523, the rotation angle of the support 21 can be intuitively understood, effectively improving the accuracy of the angle adjustment.

[0230] The reducer cooperates with the dial to visually observe the rotation angle of the support frame, which helps to adjust the support frame 1 to the optimal imaging angle more quickly when testing indicators. At the optimal imaging angle, the ray 203 emitted by the ray source 201 penetrates the first shielding object 3 and the test object 4, and the image of the test object 4 obtained by the detector 202 after receiving the transmitted ray meets the preset standard.

[0231] The reducer may further include a hand wheel 521 . By rotating the hand wheel 521 , the reducer may be driven to rotate, thereby driving the support 21 to rotate, thereby adjusting the angles of the first shielding object 3 and the test object 4 .

[0232] like Fig.14 As shown, the first storage device 6 includes a first lifting assembly 61 and a storage structure 62. The storage structure 62 is disposed on the top of the first lifting assembly 61. The storage structure 62 may include two limiting rods, which may be inserted into the second through holes 35 of the first shielding object 3, and a plurality of first shielding objects 3 may be stacked along the axis direction of the limiting rods.

[0233] like Fig.14 , Fig.15 and Fig.16 As shown, the first lifting assembly 61 includes a scissor-type lifting structure 611 and a second driving member 612. The second driving member 612 includes a hydraulic cylinder (not shown), a gear pump 613, a transmission end 614, an anti-slip pad 615, a screw 616 and a relief valve 617.

[0234] The gear pump 613 drives the hydraulic cylinder to extend and retract. The gear pump 613 can be started by rotating the transmission end 614. The transmission end 614 can be rotated by using tools such as an electric sleeve. The anti-slip pad 615 is sleeved on the transmission end 614 and fixed to the gear pump 613 by screws 616. The transmission end 614 on the gear pump 613 can be firmly buckled inside by the anti-slip pad 615. The anti-slip pad 615 can effectively prevent the transmission end 614 from falling and affecting the operation of the gear pump 613. The first lifting component 61 can be lowered by the unloading valve 617.

[0235] like Fig.17 , Fig.18 and Fig.19 As shown, the movable mounting structure 7 for realizing the movement of the first storage device 6 includes a first guide rail 71 , a first slider 72 , a lead screw 73 , a rotatable member 74 , a first limiting structure 75 and a stopper 76 .

[0236] The first guide rail 71 is arranged at the lower part of the support frame 1 along the length direction, and the first slider 72 is installed at the bottom of the first storage device 6, and the first slider 72 is slidably matched with the first guide rail 71. One end of the lead screw 73 is connected to the bottom of the first storage device 6 by a thread, and the other end of the lead screw 73 is rotatably connected to the stopper 76. The rotatable member 74 is connected to the lead screw 73 and is located on the side of the stopper 76 away from the first storage device 6. The rotatable member 74 can be rotated by using tools such as an electric sleeve.

[0237] By rotating the rotatable member 74, the lead screw 73 can be driven to rotate, and the rotation of the lead screw 73 can drive the first storage device 6 to slide along the first guide rail 71, thereby realizing the lateral movement of the first storage device 6. The first guide rail 71 extends in the lateral direction, and the first storage device 6 can be guided to the bottom of the installation assembly 2 to facilitate the installation or removal of the first shielding object 3 and the second shielding object 8; the first storage device 6 can also be guided to the side of the installation assembly 2, away from the bottom of the installation assembly 2, so as to avoid interference with the rays and affect the test accuracy.

[0238] like Fig.18 As shown, at one end away from the stopper 76, the support frame 1 is further provided with a first limiting structure 75, which can limit the first storage device 6 from continuing to move in a direction away from the stopper 76. The stopper 76 and the first limiting structure 75 limit the movement range of the first storage device 6.

[0239] The first limiting structure 75 may be a wedge-shaped limiting block and may be made of a soft material such as rubber to prevent the first limiting structure 75 from causing wear or impact damage to the first storage device 6 when in contact with the first storage device 6 .

[0240] like Fig. 20 As shown, the test object 4 can be fixed on the second shielding object 8 by glue.

[0241] The second shielding object 8 can be the same in shape, size and structure as the first shielding object 3. It can be understood that the second shielding object 8 is one of the plurality of first shielding objects 3. In this way, the second shielding object 8 can be installed by using the installation assembly 2 for installing the first shielding object 3, and there is no need to provide a special connection device for the second shielding object 8.

[0242] like Figures 21 to 24As shown, the test fixture also includes an auxiliary structure 9, and the auxiliary structure 9 includes a conveying device 91, a second limiting structure 92 and a first locking device 93. The conveying device 91 includes a tray 911 and a second guide rail 913, and the tray 911 is provided with a third through hole 912, and the second guide rail 913 is extended along the length direction. The second shielding object 8 is placed on the tray 911, and the test object 4 is exposed downward from the third through hole 912. The tray 911 is connected to the second guide rail 913, and when the tray 911 is pushed, the tray 911 can move along the second guide rail 913. The second guide rail 913 extends in the horizontal direction, and can guide the tray 911 to the bottom of the installation component 2, and can also bring the tray 911 back and leave the bottom of the installation component 2.

[0243] The extension direction of the second guide rail 913 is parallel to the extension direction of the first guide rail 71. The second guide rail 913 can be disposed below the mounting assembly 2 and extend to the right, and the first guide rail 71 can be disposed below the mounting assembly 2 and extend to the left. Of course, in other embodiments, the first guide rail 71 and the second guide rail 913 can extend from the bottom of the mounting assembly 2 to the same direction, because in the vertical direction, the first guide rail 71 is located below the second guide rail 913.

[0244] After the required number of first shielding objects 3 are installed on the installation assembly 2, the tray 911 can be pushed to bring the second shielding object 8 and the test object 4 to the bottom of the installation assembly 2, and then the first storage device 6 located under the installation assembly 2 is lifted up until the two limit rods in the storage structure 62 are inserted into the two through holes of the second shielding object 8, and the top of the first storage device 6 (which may be the top surface of the first lifting assembly 61 or the top surface of the first shielding object 3 stored on the storage structure 62) contacts the test object 4, and then slightly lifted up to make the second shielding object 8 leave the tray 911; then, the tray 911 is lifted up to make the second shielding object 8 leave the tray 911; The tray 911 returns, and the first locking device 93 is used to fix the tray 911 to prevent the tray 911 from accidentally moving; then, the first lifting assembly 61 continues to rise until the second shielding object 8 contacts the first shielding object 3 located at the bottom, and then the first locking nut 24 is screwed down, the connecting member 22 is rotated to make the connecting member 22 screwed out downward, the plug-in member 23 is pulled out, and then the plug-in member 23 is inserted into the limiting groove of the second shielding object 8 and into the first limiting groove 221 of the connecting member 22 that has moved downward, and finally the first locking nut 24 is tightened to achieve a fixed connection between the connecting member 22 and the second shielding object 8; then, as shown in FIG. Fig.25 As shown, for example, by using the hand-cranked wheel 521, the adjustment component 5 is started to adjust the angle of the support 21 relative to the support frame 1, and the first covering object 3, the second covering object 8 and the test object 4 are adjusted to a suitable test angle. At the same time, the rotatable part 74 is rotated to move the first storage device 6 to the left side of the installation component 2 to prevent the first covering object 3 on the first storage device 6 from affecting the test.

[0245] like Fig.24 As shown, the second limiting structure 92 includes a support plate 921 disposed on the outside of the support 21 and a positioning column 922 disposed on the tray 911. The support plate 921 is provided with a fourth through hole 923. When the tray 911 moves to the bottom of the mounting assembly 2, the positioning column 922 is inserted into the fourth through hole 923, which can limit the movement of the tray 911 and prevent the tray 911 from continuing to move away from the starting position. The positioning column 922 is cylindrical, and the fourth through hole 923 is a round hole.

[0246] The first locking device 93 may be a buckle lock.

[0247] like Fig.26 and 27 , which are schematic structural diagrams of two other embodiments of the test tooling provided by the present disclosure.

[0248] In such Fig.26 In the illustrated embodiment, the support frame 1 includes an inner leg 13 and an outer leg 14 . The inner leg 13 is disposed inside the outer leg 14 . The inner leg 13 can be extended or retracted relative to the outer leg 14 to adjust the height of the support frame 1 .

[0249] In this embodiment, the test fixture includes a second lifting assembly 60 . The second lifting assembly 60 adopts a worm gear drive structure and can drive the inner leg 13 to move relative to the outer leg 14 .

[0250] In such Fig. 27 In the illustrated embodiment, the support frame 1 includes an inner leg 13 and an outer leg 14 . The inner leg 13 is disposed inside the outer leg 14 . The inner leg 13 can be extended or retracted relative to the outer leg 14 to adjust the height of the support frame 1 .

[0251] In this embodiment, the test fixture includes a second lifting assembly 60 ′. The second lifting assembly 60 ′ adopts an electric cylinder, an oil cylinder or a gas cylinder, and can drive the inner leg 13 to move relative to the outer leg 14 .

[0252] By providing the second lifting assembly 60 or 60 ′, the height of the support frame 1 can be flexibly adjusted according to test requirements.

[0253] In the test fixture embodiment provided in the present disclosure, by providing the plug-in connector 23 , the first shielding object 3 can be quickly locked and positioned.

[0254] The first storage device 6 is movable in the transverse direction, and has a first state for disassembling and installing the first shielding object 3 , and also has a second state away from the test station, so as to prevent the first storage device 6 from blocking the test rays and affecting the imaging effect during the test.

[0255] In the test fixture embodiment provided in the present disclosure, the test object 4 can be made of lead, and the test object 4 can include two lead blocks with a size of 200mm×100mm×100mm and a weight of about 50kg. The weight of each first shielding object 3 can be about 40kg, and each test fixture usually needs to prepare about 20 first shielding objects 3. By setting the installation component 2, the embodiment of the present disclosure can easily operate the equipment through simple operations, without the need for the debugging personnel to exert high-intensity physical strength, and completely solves the heavy labor of manual handling and disassembly.

[0256] Moreover, after the installation and debugging of the test tooling are simplified, a large amount of personnel allocation can be saved, manpower can be reduced, and human resources can be saved.

[0257] By providing a liftable first storage device 6, manual handling can be replaced, accidental work injuries can be avoided, and the safety of the test tooling is greatly improved.

[0258] In the test tooling embodiment provided in the present disclosure, the plurality of first shielding objects 3 may be distinguished by color markings to ensure the consistency of the connector during the assembly process.

[0259] The test tooling embodiment provided in the present disclosure can replace obstructions and disassemble test objects more efficiently and safely, can solve the high-intensity physical labor of operators, effectively ensure the personal safety of operators, and can be operated by one person, which can save human resources and reduce working hours.

[0260] The following describes the assembly process of an embodiment of the test tool provided by the present disclosure:

[0261] The support 21 is moved horizontally by the hand-cranked wheel 521, with the opening of the U-shaped structure of the support 21 facing downward;

[0262] Connecting the electric sleeve to the rotatable member 74 drives the first storage device 6 to move below the mounting assembly 2;

[0263] Use an electric sleeve to connect to the transmission end 614 to make the first lifting assembly 61 rise until it is firmly attached to the bottom plate 212 of the support 21;

[0264] According to the required thickness of the shielding, the number of the first shielding objects 3 is determined, the two connecting members 22 are rotated, and the position of the first limiting groove 221 on the connecting member 22 is determined through the first opening 32 of the first shielding object 3;

[0265] When the first limiting groove 221 is flush with the first shielding object 3 at the bottom, the plug connector 23 is inserted into two corresponding positions, and then the connector 22 is rotated in the opposite direction to make the connector 22 rise and tighten the plug connector 23;

[0266] The first storage device 6 is driven to descend, so that the selected first shielding object 3 is separated from the first storage device 6;

[0267] Next, the tray 911 is pushed to bring the second shielding object 8 with the test object 4 to the bottom of the installation assembly 2;

[0268] Raise the first storage device 6, hold up the test object 4, and after confirming that the second shielding object 8 leaves the tray 911, retract the tray 911 and lock it with the first locking device 93;

[0269] Continue to raise the first storage device 6 until the second shielding object 8 is completely attached to the bottom first shielding object 3;

[0270] At this time, loosen the connecting member 22, unplug the plug-in member 23, rotate the connecting member 22 downward, and align the first limiting groove 221 of the connecting member 22 with the second shielding object 8;

[0271] Insert the connector 23 into the groove on the second shielding object 8, rotate the connector 22 upward in the opposite direction to tighten the connector 23, and at the same time make sure that the first boss 233 on the connector 23 is completely embedded in the limiting groove of the second shielding object 8;

[0272] After the connector 22 and the connector 23 are fastened, a first locking nut 24 and a second locking nut 25 may be installed at both ends of the connector 22 respectively;

[0273] Retract the first storage device 6 so that the first storage device 6 is away from below the installation assembly 2;

[0274] The angle of the support 21 is adjusted by a ruler. At this point, the test fixture is assembled.

[0275] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0276] Those skilled in the art will appreciate that, in the above method of a specific embodiment, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0277] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that without departing from the principles of the present disclosure, the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, and these modifications and equivalent replacements should be included in the scope of the technical solution for protection of the present disclosure.

Claims

1. A scanning inspection system test fixture (100), characterized in that: include: Support frame (1); A mounting assembly (2) movably disposed on the support frame (1); A first shielding object (3) is mounted on the mounting assembly (2); A test object (4) is arranged on one side of the first shielding object (3); and An adjustment component (5) is configured to adjust the angle of the mounting component (2) relative to the support frame (1), thereby adjusting the angle of the first shielding object (3) and the test object (4) relative to the support frame (1).

2. The scanning inspection system test fixture (100) according to claim 1, characterized in that: The mounting assembly (2) comprises a support (21) and a connecting member (22); the support (21) is movably mounted on the support frame (1); and the first shielding object (3) is mounted on the support (21) via the connecting member (22).

3. The scanning inspection system test fixture (100) according to claim 2, characterized in that: The support (21) is provided with a first connection hole (211), the first shielding object (3) is provided with a first through hole (31), and the connecting member (22) passes through the first through hole (31) and the first connection hole (211) to connect the first shielding object (3) and the support (21).

4. The scanning inspection system test fixture (100) according to claim 3, characterized in that: The first shielding object (3) is provided with a first opening (32), the first opening (32) extending from the first through hole (31) to the edge of the first shielding object (3), so that the position of the connecting member (22) relative to the first shielding object (3) can be observed through the first opening (32).

5. The scanning inspection system test fixture (100) according to claim 4, characterized in that: The size of the first opening (32) is smaller than the diameter of the first through hole (31).

6. The scanning inspection system test fixture (100) according to claim 2, characterized in that: The mounting assembly (2) further comprises a plug-in component (23), the connecting component (22) being provided with a first annular limiting groove (221), the plug-in component (23) being provided with a plug-in hole (231), the plug-in hole (231) having a second opening (232), the plug-in component (23) being insertable into the first limiting groove (221) through the second opening (232), and the groove wall of the first limiting groove (221) axially limiting the plug-in component (23).

7. The scanning inspection system test fixture (100) according to claim 6, characterized in that: The first shielding object (3) is provided with a first through hole (31), a first opening (32) and a second limiting groove (33) communicating with the first through hole (31); the connecting member (22) is inserted into the first through hole (31); the first opening (32) extends from the first through hole (31) to the edge of the first shielding object (3); a side surface of the second limiting groove (33) perpendicular to an extension direction of the first opening (32) is open; and the plug-in member (23) can be inserted into the second limiting groove (33).

8. The scanning inspection system test fixture (100) according to claim 7, characterized in that: In the thickness direction of the first shielding object (3), the height of the second limiting groove (33) is greater than or equal to the height of the plug-in component (23).

9. The scanning inspection system test fixture (100) according to claim 7, characterized in that: The plug-in connector (23) comprises a first boss (233), a third boss (34) is provided inside the second boss (33), the first boss (233) can be inserted into the third boss (34), and a wall of the third boss (34) prevents the plug-in connector (23) from escaping from the second boss (33) in a direction perpendicular to the axis of the connector (22).

10. The scanning inspection system test fixture (100) according to claim 7, characterized in that: The plug connector (23) comprises an operating portion (234) located outside the second limiting groove (33), and the operating portion (234) is provided with an operating hole (235).

11. The scanning inspection system test fixture (100) according to claim 6, characterized in that: The mounting assembly (2) comprises a first locking nut (24), the first locking nut (24) being connected to the connecting member (22) via a thread, and the first locking nut (24) being located on a side of the connector (23) away from the first shielding object (3).

12. The scanning inspection system test fixture (100) according to claim 2, characterized in that: The connecting piece (22) is connected to the support (21) via threads.

13. The scanning inspection system test fixture (100) according to claim 2, characterized in that: The support (21) comprises a bottom plate (212) and two side plates (213), the two side plates (213) being respectively connected to two opposite sides of the bottom plate (212), the first shielding object (3) being installed in a receiving space surrounded by the bottom plate (212) and the two side plates (213), and the two side plates (213) being respectively provided with blocking bars (214) extending towards opposite sides.

14. The scanning inspection system test fixture (100) according to claim 1, characterized in that: It also comprises a second shielding object (8), the test object (4) is fixedly mounted on the second shielding object (8), and the second shielding object (8) is connected to the first shielding object (3).

15. The scanning inspection system test fixture (100) according to claim 2, characterized in that: It also comprises a third shielding object (10) mounted on the mounting assembly (2), the thickness of the third shielding object (10) being smaller than the thickness of the first shielding object (3).

16. The scanning inspection system test fixture (100) according to claim 15, characterized in that: The support (21) comprises a receiving space for receiving the first shielding object (3); the third shielding object (10) is mounted on the support (21) and is located outside the receiving space.

17. The scanning inspection system test fixture (100) according to claim 16, characterized in that: The connecting member (22) extends to the outside of the accommodating space, so that the third shielding object (10) is mounted on the support (21) through the connecting member (22).

18. The scanning inspection system test fixture (100) according to claim 17, characterized in that: The mounting assembly (2) comprises a second locking nut (25), the second locking nut (25) being connected to the connecting member (22) via a thread, and the second locking nut (25) being located on a side of the third shielding object (10) away from the support (21).

19. The scanning inspection system test fixture (100) according to claim 15, characterized in that: It also comprises a second storage device (20) arranged on the support frame (1), wherein the second storage device (20) is configured to store the third covering object (10).

20. The scanning inspection system test fixture (100) according to claim 19, characterized in that: The second storage device (20) comprises an openable and closable drawer cabinet, and the third covering object (10) is stored in the drawer cabinet.

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