Detection apparatus

Abstract

Provided in the present application is a detection apparatus, comprising a conveying mechanism, a detection mechanism and a mounting frame. The conveying mechanism comprises a drive roller, a deflection roller, driven rollers and a conveyor belt; the conveyor belt is sleeved on the drive roller, the deflection roller and the driven rollers; the conveyor belt comprises a carrying layer and a ready-to-carry layer which are parallel to each other, the carrying layer being used for carrying and conveying objects to be inspected. The detection mechanism comprises a radiation source, a detector component and a channel component; the channel component is configured with a first channel and a second channel, the carrying layer and the radiation source are both located in the first channel, and the detector component is located in the second channel. The conveying mechanism and the detection mechanism are both mounted on the mounting frame.

Description

Detection device

[0001] The present application claims priority to Chinese Patent Application No. 202410708059.X, filed on June 3, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of detection devices, and in particular, to a detection device. BACKGROUND

[0003] The detection device irradiates an article or a human body with an X-ray beam, judges whether a dangerous article is carried according to a scanning image, or diagnoses a disease, and is widely used in the fields of security inspection and medical treatment.

[0004] In the related art, the detection device mainly includes a conveying component and a detection component. The conveying component mainly includes a driving roller, a redirecting roller and a conveying belt, and the conveying belt includes an upper conveying belt and a lower conveying belt. The detection component mainly includes a radiation source and a detector. The radiation source is located above the upper conveying belt, and the detector is located below the lower conveying belt. The object to be detected is in contact with the top surface of the upper conveying belt.

[0005] Since the detector and the object to be detected are far apart, and there are two layers of conveying belts between the detector and the object to be detected, the scanning image quality is affected, and thus the detection accuracy is affected. SUMMARY

[0006] In one aspect, embodiments of the present disclosure provide a detection device, comprising:

[0007] A conveying mechanism, comprising a driving roller, a redirecting roller, a driven roller and a conveying belt, the conveying belt being sleeved on the driving roller, the redirecting roller and the driven roller, the conveying belt including a bearing layer and a to-be-bearing layer parallel to each other, the bearing layer being used for bearing and conveying an object to be detected;

[0008] A detection mechanism, comprising a radiation source, a detector component and a passage component, the passage component being configured with a first passage and a second passage, the bearing layer and the radiation source being located in the first passage, and the detector component being located in the second passage;

[0009] A mounting frame, the conveying mechanism and the detection mechanism being mounted on the mounting frame;

[0010] The driven roller is located on the inner side of the conveying belt, the detector component is located between the bearing layer and the to-be-bearing layer, and is close to the bearing layer.

[0011] According to an embodiment of the present disclosure, the channel component comprises a first channel assembly and a second channel assembly, the first channel assembly is connected to the mounting frame, the first channel assembly is configured with the first channel; the second channel assembly is detachably connected with the first channel assembly, and the second channel assembly is configured with the second channel.

[0012] The detector component comprises a detector and a bracket, the detector is mounted on the bracket, and the bracket is adjustably arranged in the second channel in the vertical direction, so that the detector can be lifted in the vertical direction.

[0013] According to an embodiment of the present disclosure, the second channel assembly comprises a first top plate, a bottom plate, two first side plates arranged oppositely, and two second side plates arranged oppositely, the first top plate, the bottom plate, the two first side plates and the two second side plates form a box structure.

[0014] The side support of the first channel assembly is bent and extended in the direction away from the inside of the first channel to form a first connecting part; the two first side plates are arranged in the width direction of the detection equipment, the top of the first side plate is bent and extended in the direction away from the inside of the second channel assembly to form a second connecting part, and the first connecting part and the second connecting part are detachably connected.

[0015] According to an embodiment of the present disclosure, the bracket comprises a first support plate and a second support plate arranged in the vertical direction, a connecting piece, a fastener and an adjusting piece, the connecting piece is arranged on the side of the first support plate away from the second support plate, and is used for connecting the detector;

[0016] The first support plate and the second support plate are connected through the fastener, and the adjusting piece is used for adjusting the vertical distance between the first support plate and the second support plate, so that the detector can be lifted in the vertical direction.

[0017] According to an embodiment of the present disclosure, the adjusting piece comprises a screw rod and a nut, the nut is connected to the side of the first support plate away from the second support plate, the screw rod is screwed with the nut, and one end of the screw rod abuts against the second support plate;

[0018] Screwing the screw rod can adjust the vertical distance between the first support plate and the second support plate.

[0019] According to an embodiment of the present disclosure, the second channel assembly further comprises a cover plate, at least one of the first side plates is provided with an opening, and the cover plate can open or close the opening.

[0020] When the opening is in the open state, the detector component can be installed or maintained.

[0021] According to an embodiment of the present disclosure, the detection mechanism further comprises a sensor and a controller, the sensor and the radiation source are connected with the controller, the sensor is arranged in the second channel and is configured to detect whether the cover plate is in a state of covering or uncovering the opening;

[0022] The sensor is configured to generate an emission control signal for controlling the radiation source to emit rays when detecting that the cover plate covers the opening, and the controller controls the radiation source to emit rays based on the emission control signal.

[0023] According to an embodiment of the present disclosure, the sensor comprises a contact sensor, a contact end of the contact sensor is in contact with the cover plate when the cover plate is in a state of covering the opening, and the contact sensor generates the emission control signal.

[0024] According to an embodiment of the present disclosure, the second channel assembly further comprises a second top plate and a third top plate, the second top plate and the third top plate are arranged at opposite ends of the first top plate respectively, and the first top plate, the second top plate and the third top plate form a coplanar structure for supporting the carrying layer.

[0025] According to an embodiment of the present disclosure, the first top plate is a carbon fiber piece;

[0026] The second top plate and / or the third top plate is a metal piece.

[0027] According to an embodiment of the present disclosure, the conveying mechanism further comprises a support frame, the driving roller, the redirection roller and the driven roller are mounted on the support frame, and the support frame is detachably connected with the mounting frame.

[0028] In another aspect, an embodiment of the present disclosure provides a detection device, comprising:

[0029] A conveying mechanism comprising a driving roller, a redirection roller, a driven roller and a conveying belt, the conveying belt is sleeved on the driving roller, the redirection roller and the driven roller, and the conveying belt comprises a carrying layer and a to-be-carried layer which are parallel to each other, the carrying layer is configured to carry and convey an object to be detected;

[0030] A detection mechanism comprising a radiation source, a detector component and a channel component, the channel component is configured with a first channel and a second channel, the carrying layer and the radiation source are located in the first channel, and the detector component is located in the second channel; and

[0031] A mounting frame, the conveying mechanism and the detection mechanism are mounted on the mounting frame.

[0032] The driven roller is located outside the conveying belt, and the detector component is located on the side of the layer to be carried away from the carrying layer and close to the layer to be carried.

[0033] According to an embodiment of the present disclosure, the distance between the carrying layer and the layer to be carried is less than one tenth of the diameter of the driving roller. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments thereof taken in conjunction with the accompanying drawings, in which:

[0035] FIG. 1 schematically shows an oblique view of a detection apparatus according to an embodiment of the present disclosure;

[0036] FIG. 2 schematically shows a front view of a detection apparatus according to an embodiment of the present disclosure;

[0037] FIG. 3 schematically shows a structural schematic diagram of a conveying mechanism according to an embodiment of the present disclosure;

[0038] FIG. 4 schematically shows a sectional view of a detection apparatus according to an embodiment of the present disclosure;

[0039] FIG. 5 schematically shows one of partial sectional views of a detection apparatus according to an embodiment of the present disclosure;

[0040] FIG. 6 schematically shows another of partial sectional views of a detection apparatus according to an embodiment of the present disclosure;

[0041] FIG. 7 is a partial enlarged schematic view of A in FIG. 6;

[0042] FIG. 8 is a partial enlarged schematic view of B in FIG. 6;

[0043] FIG. 9 schematically shows a position schematic diagram of a detector component close to a layer to be carried according to an embodiment of the present disclosure;

[0044] Label: 1: conveying mechanism; 11: driving roller; 12: redirection roller; 13: driven roller; 14: conveying belt; 141: bearing layer; 142: layer to be borne; 15: support frame; 151: second frame beam; 152: connecting seat assembly; 1521: first connecting seat; 1522: second connecting seat; 1523: third connecting seat; 16: second driven roller; 2: detection mechanism; 21: detector component; 211: support; 2111: first support plate; 2112: second support plate; 2113: connecting piece; 2114: adjusting piece; 212: detector; 22: first channel assembly; 220: first channel; 221: first channel piece; 2211: first connecting part; 222: second channel piece; 223: third channel piece; 23: second channel assembly; 230: second channel; 231: first side plate; 2311: second connecting part; 232: first top plate; 233: cover plate; 234: second top plate; 235: third top plate; 24: radiation source; 25: sensor; 3: mounting frame; 31: first frame beam; 32: base. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure is further described in detail below with reference to specific embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present disclosure.

[0046] The terms used herein are only used to describe specific embodiments, and are not intended to limit the present disclosure. The terms "include", "contain" and the like used herein indicate the existence of the described features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0047] In the description of the present disclosure, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0048] The detection device provided by the embodiments of the present disclosure is described below with reference to FIGS. 1 to 9.

[0049] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5, the detection device provided by the embodiments of the present disclosure includes a conveying mechanism 1, a detection mechanism 2 and a mounting rack 3. The conveying mechanism 1 includes a driving roller 11, a redirection roller 12, a driven roller 13 and a conveying belt 14. The conveying belt 14 is sleeved on the driving roller 11, the redirection roller 12 and the driven roller 13. The conveying belt 14 includes a parallel bearing layer 141 and a to-be-borne layer 142. The bearing layer 141 is used for bearing and conveying an object to be detected. The detection mechanism 2 includes a radiation source 24, a detector component 21 and a channel component. The channel component is configured with a first channel 220 and a second channel 230. The bearing layer 141 and the radiation source 24 are located in the first channel 220. The detector component 21 is located in the second channel 230. The conveying mechanism 1 and the detection mechanism 2 are both mounted on the mounting rack 3.

[0050] In some embodiments, the driven roller 13 is located on the inner side of the conveying belt 14. The detector component 21 is located between the bearing layer 141 and the to-be-borne layer 142 and close to the bearing layer 141.

[0051] In some embodiments, the driven roller 13 is located on the outer side of the conveying belt 14. The detector component 21 is located on the side of the to-be-borne layer 142 away from the bearing layer 141 and close to the to-be-borne layer 142.

[0052] Specifically, the conveying mechanism 1 and the detection mechanism 2 are both mounted on the mounting rack 3. The mounting rack 3 can be a frame beam structure. For example, the mounting rack 3 includes two first frame beams 31 and a base 32. The two first frame beams 31 are arranged on the base 32 along the width direction of the base 32. The first frame beam 31 is spliced by a plurality of first horizontal beams and a plurality of first vertical beams. For example, the first frame beam 31 is spliced by two first vertical beams and two first horizontal beams.

[0053] The conveying mechanism 1 includes a support frame 15, the driving roller 11, the redirection roller 12, the driven roller 13 and the conveying belt 14. The driving roller 11, the redirection roller 12 and the driven roller 13 are all mounted on the support frame 15. The conveying belt 14 is sleeved on the plurality of rollers. With the rotation of the conveying belt 14, different sections of the conveying belt 14 are constantly switched between the bearing layer 141 and the to-be-borne layer 142. The bearing layer 141 and the to-be-borne layer 142 are parallel to each other. The bearing layer 141 is located above, and the to-be-borne layer 142 is located below. The object to be detected is placed on the bearing layer 141. With the movement of the bearing layer 141, the object to be detected moves to a detection position and is detected by the detection mechanism 2.

[0054] The support frame 15 can also be a frame beam structure, for example, the support frame 15 comprises two second frame beams 151, the two second frame beams 151 are arranged at intervals, the second frame beams 151 are located on the inner side of the first frame beam 31, and the second frame beams 151 are spliced by a plurality of second vertical beams and a plurality of second horizontal beams, for example, the second frame beams 151 are spliced by two second vertical beams and two second horizontal beams.

[0055] The second frame beams 151 and the first frame beam 31 can be detachably connected in a screwing or clamping manner. For example, the first vertical beam and the second vertical beam are arranged in abutment, the first vertical beam is provided with a through hole, the second vertical beam is provided with a threaded hole, a screw passes through the through hole and is screwed with the threaded hole, and the connection of the second frame beams 151 and the first frame beam 31 is realized. Alternatively, the first horizontal beam and the second horizontal beam are arranged in abutment, the first horizontal beam is provided with a through hole, the second horizontal beam is provided with a threaded hole, a screw passes through the through hole and is screwed with the threaded hole, and the connection of the second frame beams 151 and the first frame beam 31 is realized.

[0056] The mounting frame 3 and the support frame 15 are both frame beam structures, which is conducive to the lightweight of the detection equipment. The second frame beams 151 and the first frame beam 31 are detachably connected, which facilitates the whole conveying mechanism 1 to be taken off from the mounting frame 3 for maintenance or replacement of parts of the conveying mechanism 1, such as maintenance or replacement of the conveying belt 14.

[0057] The detection mechanism 2 comprises a radiation source 24, a detector component 21 and a channel component, the channel component is configured with a first channel 220 and a second channel 230, the first channel 220 is located above the bearing layer 141, and the second channel 230 is located below the bearing layer 141. The length of the first channel 220 is greater than the length of the second channel 230, and the length direction of the first channel 220 and the length direction of the second channel 230 are both the same as the conveying direction of the conveying mechanism 1, the bearing layer 141 and the radiation source 24 are located in the first channel 220, the radiation source 24 is spaced apart from the bearing layer 141 by a predetermined distance, and the detector component 21 is located in the second channel 230.

[0058] The driving roller 11 and the redirecting roller 12 are arranged at intervals along the conveying direction of the conveying mechanism 1, and the top profile line of the driven roller 13 is lower than the top profile lines of the driving roller 11 and the redirecting roller 12. The number of the driven rollers 13 is two, the two driven rollers 13 are arranged at intervals along the conveying direction, the axes of the two driven rollers 13 are located on the same horizontal plane, and the spacing between the two driven rollers 13 is smaller than the spacing between the driving roller 11 and the redirecting roller 12.

[0059] The driven roller 13 can be located on the inner side of the conveying belt 14, that is, the driven roller 13 is in rolling contact with the inner surface of the conveying belt 14; or the driven roller 13 can be located on the outer side of the conveying belt 14, that is, the driven roller 13 is in rolling contact with the outer surface of the conveying belt 14.

[0060] As shown in FIG. 4, taking the example that the driven roller 13 is located at the inner side of the conveying belt 14. Both of the driven rollers 13 are located below the driving roller 11 and the driven roller 13 in the vertical direction, one driven roller 13 is spaced apart from the driving roller 11 by a preset distance, and the other driven roller 13 is spaced apart from the redirection roller 12 by a preset distance.

[0061] Both of the driven rollers 13 are spaced apart from the driving roller 11 and the redirection roller 12 in the vertical direction, so that the inner side of the conveying belt 14 has a suitable accommodation space, and thus the detector component 21 can be installed at the accommodation space between the bearing layer 141 and the to-be-borne layer 142. The detector component 21 is arranged close to the bearing layer 141, and the detector 212 is separated from the object under inspection on the bearing layer 141 by only one layer of the conveying belt 14, which reduces the vertical distance between the detector 212 and the object under inspection, and thus is beneficial to improving the quality of the scanning image.

[0062] Further, a second driven roller 16 is arranged between the driven roller 13 and the driving roller 11 in the height direction of the conveying mechanism 1, and a second driven roller 16 is arranged between the driven roller 13 and the redirection roller 12, and the second driven roller 16 is in rolling contact with the outer surface of the conveying belt 14. By arranging two second driven rollers 16, the conveying belt 14 can be replaced.

[0063] During the replacement of the conveying belt 14, the connecting member connecting the support frame 15 and the mounting frame 3 is first disassembled, so that the entire conveying mechanism 1 is disassembled from the mounting frame 3, and then the two second driven rollers 16 are disassembled. The conveying belt 14 changes from a tensioned state to a relaxed state, and there is sufficient reserved space between the lower side of the second driven roller 16 and the inner surface of the conveying belt 14, so that the conveying belt 14 can be pulled out from the plurality of rollers and the support frame 15 in the width direction of the conveying mechanism 2.

[0064] During the entire replacement of the conveying belt 14, only the connecting member of the support frame 15 and the mounting frame 3 needs to be disassembled and assembled, and the second driven roller 16 needs to be disassembled and assembled, which greatly reduces the parts that need to be disassembled, and reduces the labor intensity of the workers.

[0065] As shown in FIG. 9, taking the example that the driven roller 13 is located at the outer side of the conveying belt 14, the top profile line of the driven roller 13 is higher than the bottom profile line of the driving roller 11, and the top profile line of the driven roller 13 is lower than the top profile line of the driving roller 11, so that the spacing between the carrying layer 141 and the to-be-carried layer 142 is far less than the diameter of the driving roller 11. For example, the spacing between the carrying layer 141 and the to-be-carried layer 142 is less than one-tenth of the diameter of the driving roller 11, which ensures that the to-be-carried layer 142 is close enough to the carrying layer 141, and meanwhile guarantees that the to-be-carried layer 142 will not contact the carrying layer 141 in the case that the conveying belt 14 is shaken or vibrated by external force factors during movement.

[0066] In the embodiment shown in FIG. 9, the detector 212 is separated from the inspected object on the carrying layer 141 by two layers of the conveying belt 14. Since the detector 212 is arranged close to the to-be-carried layer 142, the spacing between the detector 212 and the inspected object is far less than the outer diameter of the driving roller 11, which is equivalent to reducing the vertical spacing between the detector 212 and the inspected object, thereby facilitating the improvement of the quality of the scanning image.

[0067] In the embodiments of the present disclosure, the conveying belt 14 is sleeved on the driving roller 11, the redirection roller 12 and the two driven rollers 13. The driven roller 13 is located at the inner side of the conveying belt 14, and the detector component 21 is arranged close to the carrying layer 141, or the driven roller 13 is located at the outer side of the conveying belt 14, and the detector component 21 is arranged close to the to-be-carried layer 142, so that the vertical spacing between the detector 212 and the inspected object on the carrying layer 141 is far less than the outer diameter of the driving roller 11. By such arrangement, the vertical spacing between the detector 212 and the inspected object is reduced, thereby facilitating the improvement of the quality of the scanning image.

[0068] As shown in FIGS. 2, 4 and 5, in optional embodiments, the channel component includes a first channel assembly 22 and a second channel assembly 23. The first channel assembly 22 is connected to the mounting frame 3, and the first channel assembly 22 is configured with a first channel 220. The second channel assembly 23 is detachably connected to the first channel assembly 22, and the second channel assembly 23 is configured with a second channel 230. The detector component 21 includes a detector 212 and a bracket 211. The detector 212 is mounted to the bracket 211, and the bracket 211 is adjustably arranged in the second channel 230 in the vertical direction, so that the detector 212 can be lifted in the vertical direction.

[0069] Specifically, the conveying mechanism 1 further includes a support frame 15. The driving roller 11, the redirection roller 12 and the driven rollers 13 are all mounted to the support frame 15. The second frame beam 151 of the support frame 15 and the first frame beam 31 of the mounting frame 3 can be connected by screwing. The support frame 15 and the mounting frame 3 are connected by screwing, which is simple in structure and facilitates the installation and dismounting of the support frame 15.

[0070] It can be understood that the driving roller 11, the redirecting roller 12 and the driven roller 13 are all mounted at the end of the support frame 15, and the support frame 15 further comprises a connecting seat assembly 152 located at the end of the second frame beam 151, which is used to connect the driving roller 11, the redirecting roller 12 and the driven roller 13.

[0071] The two ends of the second frame beam 151 are each provided with one connecting seat assembly 152, and the two connecting seat assemblies 152 located at the same end of the support frame 15 constitute a connecting unit. The connecting unit located at the first end of the support frame 15 is used to mount the driving roller 11 and one driven roller 13, and the connecting unit located at the second end of the support frame 15 is used to mount the redirecting roller 12 and the other driven roller 13.

[0072] The connecting seat assembly 152 comprises a first connecting seat 1521 and a second connecting seat 1522, which can both be connected with the second vertical beam of the second frame beam 151. Alternatively, the first connecting seat 1521 is connected with the second vertical beam, and the second connecting seat 1522 is connected with the first connecting seat 1521. The first connecting seat 1521 is used to mount the driven roller 13, and the second connecting seat 1522 is used to mount the driving roller 11 or the redirecting roller 12.

[0073] Further, the connecting seat assembly 152 further comprises a third connecting seat 1523, which is used to mount the second driven roller 16.

[0074] The channel component comprises a first channel assembly 22 and a second channel assembly 23, and the first channel assembly 22 can be connected with the mounting frame 3. The first channel assembly 22 comprises two side support bodies and a top support body, which enclose a U-shaped first channel 220.

[0075] The side support body can be connected with the mounting frame 3, for example, the side support body comprises a side plate body and a connecting plate formed by bending and extending outwardly from the bottom end of the side plate body, and the connecting plate is connected with the top end of the first vertical beam. For example, a through hole is formed in the connecting plate, and a threaded hole is formed in the top end of the first vertical beam, and a screw is screwed through the through hole and the threaded hole to achieve the connection of the side support body and the mounting frame 3.

[0076] The second channel assembly 23 is located below the first channel assembly 22, and the second channel assembly 23 and the first channel assembly 22 can be connected by screwing or clamping. After the first channel assembly 22 is fixed, the second channel assembly 23 is connected with the first channel assembly 22, which is conducive to the convenience of installation and disassembly of the second channel assembly 23.

[0077] When the parts of the conveying mechanism 1 need to be repaired or replaced, for example, the conveying belt 14 needs to be replaced. The connecting part of the support frame 15 and the mounting frame 3 is disassembled, and the connecting part of the second channel assembly 23 and the first channel assembly 22 is disassembled, and the conveying mechanism 1 and the second channel assembly 23 are removed from the lower area of the first channel assembly 22, so that the parts can be repaired or replaced. In this process, the first channel assembly 22 does not need to be disassembled, which reduces the disassembly workload of the parts and is beneficial to reduce the workload of the repair or replacement process.

[0078] The second channel assembly 23 is formed with a closed second channel 230, and the detector part 21 is located in the second channel 230. The bracket 211 can be connected with the bottom wall or the side wall of the second channel assembly 23, and the detector 212 is installed on the bracket 211. The movable end of the bracket 211 can move in the vertical direction, thereby driving the detector 212 to move up and down in the vertical direction, and further adjusting the distance between the detector 212 and the object to be detected, thereby facilitating the quality of the scanning image.

[0079] In the embodiments of the present disclosure, the support frame 15 and the mounting frame 3 are detachably connected, which facilitates the removal of the conveying mechanism 1 from the mounting frame 3 for repair or replacement of the parts of the conveying mechanism 1. The second channel assembly 23 and the first channel assembly 22 are detachably connected, and the first channel assembly 22 does not need to be disassembled when the conveying mechanism 1 is disassembled, which is beneficial to reduce the workload of the repair or replacement process. The detector 212 can move up and down in the vertical direction, which is beneficial to adjust the vertical distance between the detector 212 and the object to be detected and to ensure the quality of the scanning image.

[0080] As shown in FIGS. 4, 5, 6 and 7, in an optional embodiment, the second channel assembly 23 includes a first plate 232, a bottom plate, two first side plates 231 arranged oppositely, and two second side plates arranged oppositely, and the first plate 232, the bottom plate, the two first side plates 231 and the two second side plates form a box structure. The side support body of the first channel assembly 22 is bent and extended in a direction away from the inside of the first channel 220 to form a first connecting part 2211. The two first side plates 231 are arranged in the width direction of the detection device, and the top of the first side plate 231 is bent and extended in a direction away from the inside of the second channel assembly 23 to form a second connecting part 2311. The first connecting part 2211 and the second connecting part 2311 are detachably connected.

[0081] Specifically, the first channel assembly 22 comprises two side supports and a top support, the side supports comprise a side plate body and a first connecting portion 2211 formed by bending the bottom of the side plate body to extend away from the interior of the first channel assembly 22, for example, the bottom of the side plate body is bent by 90 degrees to form the first connecting portion 2211, and a plurality of first through holes are formed in the first connecting portion 2211. The first connecting portion 2211 can be connected to the top end of the mounting frame 3 by welding, screwing or clamping.

[0082] The two first side plates 231 are arranged in the width direction of the detection device, and the two second side plates are arranged in the length direction of the detection device. Adjacent first side plates 231 and second side plates are connected, so that the two first side plates 231, the two second side plates, the top plate and the bottom plate form a box structure.

[0083] The top of the first side plate 231 is bent to extend away from the interior of the second channel assembly 23 to form a second connecting portion 2311, for example, the top of the first side plate 231 is bent by 90 degrees to form the second connecting portion 2311, and a plurality of second through holes are formed in the second connecting portion 2311. The plurality of second through holes and the plurality of first through holes correspond one by one. The fastener passes through the first through hole and the second through hole to realize the connection of the first connecting portion 2211 and the second connecting portion 2311, and the fastener comprises a bolt and a nut.

[0084] The bottom of the side plate body is bent to extend to form the first connecting portion 2211, and the top of the first side plate 231 is bent to extend to form the second connecting portion 2311. The first connecting portion 2211 and the second connecting portion 2311 are in close contact with each other, which can prevent the leakage of rays from the gap between the side support and the second channel assembly 23. The close connection of the first connecting portion 2211 and the second connecting portion 2311 is beneficial to ensure the sealing of the channel component.

[0085] Further, the side away from the second connecting portion 2311 of the first connecting portion 2211 is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged in the length direction of the first connecting portion 2211, which is beneficial to improve the structural strength of the side support and prevent the side support from deforming due to the long-term bearing of the load of the second channel 230 assembly 23 and the detector component 21.

[0086] Further, the support frame 15 further comprises a connecting beam, and the number of the connecting beam is at least two. The two ends of the connecting beam are respectively connected to the two second frame beams 151, for example, the two ends of the connecting beam are respectively connected to the two second vertical beams.

[0087] When the second channel assembly 23 is installed, the second channel assembly 23 can be placed on the plurality of connecting beams, and the bottom surface of the second channel assembly 23 is in contact with the top surface of the connecting beam, which is beneficial to the convenience of the operator.

[0088] Further, the connecting beams are provided with stop blocks, the top surface of each connecting beam is provided with two stop blocks, the spacing between the two stop blocks is adapted to the width of the second channel assembly 23. When installing the second channel assembly 23, the second channel assembly 23 is first placed in the area between the two stop blocks to avoid movement of the second channel assembly 23 along the width direction, and then the first channel assembly 22 and the second channel assembly 23 are assembled after the preliminary positioning of the second channel assembly 23, which is beneficial to the convenience of installation work.

[0089] In the embodiment of the present disclosure, the side support body of the first channel assembly 22 is bent towards the outside to form a first connecting part 2211, the first side plate 231 of the second channel assembly 23 is bent towards the outside to form a second connecting part 2311, the first connecting part 2211 and the second connecting part 2311 are abutted and arranged, and can be detachably connected, which is beneficial to guarantee the sealing of the channel component, and at the same time is beneficial to the convenience of installation and disassembly work.

[0090] As shown in FIGS. 6 and 7, in an optional embodiment, the bracket 211 includes first and second support plates 2111 and 2112 spaced apart in the vertical direction, a connecting piece 2113, a fastener, and an adjusting piece 2114, the connecting piece 2113 is arranged on the side of the first support plate 2111 away from the second support plate 2112, and is used to connect the detector 212; the first and second support plates 2111 and 2112 are connected by the fastener, and the adjusting piece 2114 is used to adjust the vertical spacing of the first and second support plates 2111 and 2112, so that the detector 212 can be lifted along the vertical direction.

[0091] Specifically, the first and second support plates 2111 and 2112 are spaced apart in the vertical direction, the second support plate 2112 is close to the bottom plate, the first support plate 2111 is above the second support plate 2112, and the connecting piece 2113 is on the side of the first support plate 2111 away from the second support plate 2112. The second support plate 2112 can be connected with the first side plate 231, and the opposite ends of the second support plate 2112 are respectively connected with the inner wall surfaces of the two first side plates 231. It can be understood that the width of the first support plate 2111 is less than the spacing between the two first side plates 231.

[0092] The connecting piece 2113 includes a connecting plate and a fastener, the connecting plate includes a vertical plate and a horizontal plate connected with each other, the vertical plate is connected with the first support plate 2111, the detector 212 has a first mounting hole, the horizontal plate is provided with a second mounting hole, a bolt passes through the first and second mounting holes, and a nut is screwed to realize the connection between the detector 212 and the horizontal plate.

[0093] The adjusting member 2114 is used to adjust the vertical spacing between the first support plate 2111 and the second support plate 2112. The adjusting member 2114 can be a plurality of thin pads, which are clamped between the first support plate 2111 and the second support plate 2112. By increasing or decreasing the number of pads, the spacing between the first support plate 2111 and the second support plate 2112 can be increased or decreased, so that the probe 212 can be raised or lowered in the vertical direction. The adjusting member 2114 can also be other structures.

[0094] The fastener includes a bolt and a nut. For example, a third through hole is formed on the first support plate 2111, and a fourth through hole is formed on the second support plate 2112. After the vertical spacing between the first support plate 2111 and the second support plate 2112 is adjusted by the adjusting member 2114, the bolt is sequentially inserted through the third through hole and the fourth through hole, and the nut is screwed, so that the first support plate 2111 and the second support plate 2112 are connected.

[0095] In the embodiments of the present disclosure, the probe 212 is fixed to the connecting member 2113, the connecting member 2113 is fixed to the first support plate 2111, and the second support plate 2112 is relatively fixed. By adjusting the spacing between the first support plate 2111 and the second support plate 2112 by the adjusting member 2114, the probe 212 can be raised or lowered in the vertical direction, which is simple in structure and convenient to operate.

[0096] In optional embodiments, the adjusting member 2114 includes a screw rod and a nut. The nut is connected to the side of the first support plate 2111 away from the second support plate 2112. The screw rod is screwed with the nut, and one end of the screw rod abuts against the second support plate 2112. By rotating the screw rod, the vertical spacing between the first support plate 2111 and the second support plate 2112 can be adjusted.

[0097] Specifically, the adjusting member 2114 includes a screw rod and a nut. The nut is welded to the top surface of the first support plate 2111. A through hole corresponding to the nut is formed on the first support plate 2111. After the screw rod is inserted through the threaded hole of the nut and the through hole, the bottom surface of the screw rod abuts against the top surface of the second support plate 2112.

[0098] By rotating the screw rod in the clockwise direction, the spacing between the bottom surface of the screw rod and the first support plate 2111 is adjusted to be smaller, so that the vertical spacing between the first support plate 2111 and the second support plate 2112 is reduced. By rotating the screw rod in the counterclockwise direction, the spacing between the bottom surface of the screw rod and the first support plate 2111 is adjusted to be larger, so that the vertical spacing between the first support plate 2111 and the second support plate 2112 is increased.

[0099] The number of screw rods and nuts is set according to actual needs. For example, two screw rods and two nuts are arranged on the first side of the first support plate 2111, and two screw rods and two nuts are also arranged on the second side of the first support plate 2111.

[0100] In the embodiments of the present disclosure, by screwing the screw, the vertical spacing between the first support plate 2111 and the second support plate 2112 is increased or decreased, which facilitates the adjustment of the spacing between the first support plate 2111 and the second support plate 2112.

[0101] As shown in FIGS. 6 and 8, in optional embodiments, the second channel assembly 23 further comprises a cover plate 233, and at least one first side plate 231 is provided with an opening, and the cover plate 233 can open or close the opening; when the opening is in an open state, the detector component 21 is suitable for being installed or overhauled.

[0102] Specifically, the first side plate 231 is provided with an opening, and the length and width dimensions of the opening are adapted to the size of the detector component 21, so that the worker can put the detector component 21 into the inside of the second channel 230 through the opening, install the detector component 21, and take the detector component 21 out of the inside of the second channel 230 through the opening to overhaul or maintain the detector component 21.

[0103] The cover plate 233 can be connected with the first side plate 231 by screwing or clamping, and the cover plate 233 is connected with the first side plate 231 by screwing, which is simple in structure and convenient to install and disassemble.

[0104] Both of the first side plates 231 are provided with openings, and two cover plates 233 are arranged one-to-one with the two openings, which facilitates the worker to install and overhaul the detector component 21.

[0105] In the embodiments of the present disclosure, the first side plate 231 is provided with an opening, and the cover plate 233 can open or close the opening, which facilitates the worker to install and overhaul the detector component 21.

[0106] As shown in FIGS. 5, 6 and 7, in optional embodiments, the detection mechanism 2 further comprises a sensor 25 and a controller, the sensor 25 and the radiation source 24 are connected with the controller, the sensor 25 is arranged in the second channel 230 and is used to detect the state of the cover plate 233 opening or shielding the opening; the sensor 25 is configured to: when it is detected that the cover plate 233 shields the opening, a radiation emission control signal capable of controlling the radiation source 24 to emit rays is generated, and the controller controls the radiation source 24 to emit rays based on the radiation emission control signal; and / or when it is detected that the cover plate 233 does not shield the opening, a radiation inhibition control signal capable of controlling the radiation source 24 to inhibit the emission of rays is generated, and the controller controls the radiation source 24 not to emit rays based on the radiation inhibition control signal.

[0107] Specifically, the sensor 25 and the radiation source 24 are connected with the controller, the sensor 25 is arranged close to the opening, and the sensor 25 can be connected to the first top plate 232. The sensor 25 can be a proximity sensor, a contact sensor, or the like.

[0108] The sensor 25 can detect the state of the cover plate 233 opening or shielding the opening. For example, the sensor 25 is a proximity switch, and the side of the cover plate 233 facing the sensor 25 is provided with a sensing sheet. When the cover plate 233 opens the opening, the sensing sheet is not in the sensing area of the proximity switch, indicating that the opening is in an open state at this time; when the cover plate 233 shields the opening, the sensing sheet is in the sensing area of the proximity switch, indicating that the opening is in a closed state at this time, and the sensor 25 generates a transmission control signal.

[0109] The controller controls the radiation source 24 to emit rays according to the transmission control signal, that is, the opening is in an open state, and the radiation source 24 will not emit rays, which is beneficial to ensure the safety of the detection process.

[0110] In an optional embodiment, the sensor 25 includes a contact sensor, the cover plate 233 is in a state of shielding the opening, the contact end of the contact sensor is in contact with the cover plate 233, and the contact sensor generates a transmission control signal.

[0111] Specifically, after the cover plate 233 shields the opening, the contact end of the contact sensor is in contact with the inner wall surface of the cover plate 233, and the contact sensor has the advantages of high measurement accuracy, high sensitivity, and rapid response.

[0112] If the cover plate 233 is not fixed well, there is a small gap between the cover plate 233 and the opening, and the contact end of the contact sensor cannot be in contact with the cover plate 233, at which time the contact sensor will not generate a transmission control signal, which is beneficial to ensure the safe operation of the detection equipment.

[0113] As shown in FIG. 5, in an optional embodiment, the second channel assembly 23 further includes a second top plate 234 and a third top plate 235, the second top plate 234 and the third top plate 235 are respectively arranged at opposite ends of the first top plate 232, and the first top plate 232, the second top plate 234, and the third top plate 235 form a coplanar structure for supporting the bearing layer 141.

[0114] Specifically, the first channel assembly 22 includes a first channel piece 221, a second channel piece 222, and a third channel piece 223 arranged on both sides of the first channel piece 221. The side support of the first channel piece 221 is connected with the mounting frame 3, the two ends of the first channel piece 221 respectively form a first connecting plate body and a second connecting plate body, the end of the second channel piece 222 facing the first channel piece 221 forms a third connecting plate body, and the end of the third channel piece 223 facing the first channel piece 221 forms a fourth connecting plate body.

[0115] The first connecting plate body and the third connecting plate body are parallel to each other, and the first connecting plate body and the third connecting plate body are connected through a plurality of fasteners; the second connecting plate body and the fourth connecting plate body are parallel to each other, and the second connecting plate body and the fourth connecting plate body are connected through a plurality of fasteners, and the fasteners include bolts and nuts. This structure is conducive to the assembly of the first channel assembly 22 and the fixation of the first channel assembly 22.

[0116] The side support body of the first channel piece 221 is connected to the top end of the mounting frame 3, realizing the connection of the first channel assembly 22 and the mounting frame 3.

[0117] The second top plate 234 and the third top plate 235 are respectively located on the opposite sides of the first top plate 232, and the second top plate 234 and the third top plate 235 have the same fixing mode. The two ends of the second top plate 234 are respectively connected to the top of the two connecting seat assemblies 152 oppositely arranged at the first end of the support frame 15, and the second top plate 234 can be connected to the two connecting seat assemblies 152 by welding. The two ends of the third top plate 235 are respectively connected to the top of the two connecting seat assemblies 152 oppositely arranged at the second end of the support frame 15.

[0118] The first top plate 232, the second top plate 234 and the third top plate 235 form a coplanar structure, and the first top plate 232, the second top plate 234 and the third top plate 235 jointly support the bearing layer 141. The bottom surface of the side support body of the second channel piece 222 is arranged in abutment with the top surface of the second top plate 234, and the bottom surface of the side support body of the third channel piece 223 is arranged in abutment with the top surface of the third top plate 235.

[0119] The second connecting portion 2311 of the second channel assembly 23 and the first connecting portion 2211 of the first channel piece 221 are arranged in abutment, the side support body of the second channel piece 222 is arranged in abutment with the second top plate 234, and the side support body of the third channel piece 223 is arranged in abutment with the third top plate 235, which fully guarantees the sealing property of the first channel 220.

[0120] The end of the second channel piece 222 away from the first channel piece 221 is provided with a shielding door curtain, and the end of the third channel piece 223 away from the first channel piece 221 is also provided with a shielding door curtain, which facilitates the entry of the inspected object into the first channel 220 or the removal of the inspected object from the first channel 220.

[0121] In the embodiments of the present disclosure, the first top plate 232, the second top plate 234 and the third top plate 235 not only play a role in supporting the bearing layer 141, but also guarantee the sealing property of the first channel 220.

[0122] In optional embodiments, the first top plate 232 is a carbon fiber piece; the second top plate 234 and / or the third top plate 235 are metal pieces.

[0123] Specifically, the first top plate 232 is a carbon fiber piece, the carbon fiber piece has small absorption to the rays, is beneficial to the rays being absorbed by the detector 212 through the carbon fiber piece, and the carbon fiber piece has small density, is beneficial to the lightweight of the second channel assembly 23.

[0124] At least one of the second top plate 234 and the third top plate 235 is a metal piece, the metal piece can guarantee the structural strength of the second channel assembly 23, and is beneficial to reducing the manufacturing cost of the second channel assembly 23.

[0125] The detection equipment provided by the embodiment of the present disclosure can at least achieve the following technical effects: the conveying belt is sleeved on the driving roller, the redirection roller and the two driven rollers, the driven rollers are located on the inner side of the conveying belt, the detector component is arranged close to the bearing layer, the driven rollers are located on the outer side of the conveying belt, and the detector component is arranged close to the to-be-borne layer, so that the vertical distance between the detector and the detected object on the bearing layer is much smaller than the outer diameter of the driving roller, the vertical distance between the detector and the detected object is reduced through the above arrangement, and the quality of the scanning image is improved.

[0126] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any change or replacement made within the spirit and principles of the present disclosure should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A detection device, comprising: a conveying mechanism, comprising a driving roller, a redirecting roller, a driven roller and a conveying belt, the conveying belt being sleeved on the driving roller, the redirecting roller and the driven roller, the conveying belt comprising a carrying layer and a to-be-carried layer which are parallel to each other, the carrying layer being used for carrying and conveying an object to be detected; a detection mechanism, comprising a radiation source, a detector component and a channel component, the channel component being configured with a first channel and a second channel, the carrying layer and the radiation source being located in the first channel, the detector component being located in the second channel; and a mounting frame, the conveying mechanism and the detection mechanism being mounted on the mounting frame; wherein the driven roller is located on an inner side of the conveying belt, the detector component is located between the carrying layer and the to-be-carried layer and is close to the carrying layer. 2.The detection device according to claim 1, wherein the channel component comprises a first channel assembly and a second channel assembly, the first channel assembly being connected to the mounting frame, the first channel assembly being configured with the first channel; the second channel assembly being detachably connected with the first channel assembly, the second channel assembly being configured with the second channel; the detector component comprises a detector and a bracket, the detector being mounted on the bracket, the bracket being adjustably arranged in the second channel in a vertical direction, so that the detector can be lifted in the vertical direction. 3.The detection device according to claim 2, wherein the second channel assembly comprises a first top plate, a bottom plate, two first side plates arranged oppositely and two second side plates arranged oppositely, the first top plate, the bottom plate, the two first side plates and the two second side plates forming a box structure; a side support of the first channel assembly is bent and extended in a direction away from an inside of the first channel to form a first connecting part; the two first side plates are arranged in a width direction of the detection device with a spacing, a top of each of the first side plates is bent and extended in a direction away from an inside of the second channel assembly to form a second connecting part, the first connecting part and the second connecting part being detachably connected. 4.The detection device according to claim 2, wherein the bracket comprises a first support plate and a second support plate arranged with a spacing in a vertical direction, a connecting piece, a fastener and an adjusting piece, the connecting piece being arranged on a side of the first support plate away from the second support plate, and being used for connecting the detector; the first support plate and the second support plate are connected by the fastener, and the adjusting piece is used for adjusting a vertical spacing of the first support plate and the second support plate, so that the detector can be lifted in the vertical direction. 5.The detection device according to claim 4, wherein the adjusting piece comprises a screw rod and a nut, the nut being connected to a side of the first support plate away from the second support plate, the screw rod being screwed with the nut, and one end of the screw rod being in abutment with the second support plate; screwing the screw rod can adjust the vertical spacing of the first support plate and the second support plate. 6.The detection device according to claim 3, wherein ​ The second channel assembly further comprises a cover plate, at least one of the first side plates is provided with an opening, and the cover plate is capable of opening or closing the opening; The opening is in an open state, and the detector component is suitable for being installed or maintained.

7. The detection device according to claim 6, wherein, The detection mechanism further comprises a sensor and a controller, the sensor and the radiation source are connected to the controller, the sensor is arranged in the second channel and is used for detecting the state of the cover plate opening or shielding the opening; The sensor is configured to generate an emission control signal capable of controlling the radiation source to emit rays when detecting that the cover plate shields the opening, and the controller controls the radiation source to emit rays based on the emission control signal.

8. The detection device according to claim 7, wherein, The sensor comprises a contact sensor, the cover plate is in a state of shielding the opening, a contact end of the contact sensor is in contact with the cover plate, and the contact sensor generates the emission control signal.

9. The detection device according to claim 3, wherein, The second channel assembly further comprises a second top plate and a third top plate, the second top plate and the third top plate are respectively arranged at opposite ends of the first top plate, and the first top plate, the second top plate and the third top plate form a coplanar structure for supporting the carrying layer.

10. The detection device according to claim 9, wherein, The first top plate is a carbon fiber piece; The second top plate and / or the third top plate are metal pieces.

11. The detection device according to any one of claims 1 to 10, wherein, The conveying mechanism further comprises a support frame, the driving roller, the redirection roller and the driven roller are all mounted on the support frame, and the support frame is detachably connected to the mounting frame.

12. A detection device, comprising: a conveying mechanism comprising a driving roller, a redirection roller, a driven roller and a conveying belt, the conveying belt is sleeved on the driving roller, the redirection roller and the driven roller, and the conveying belt comprises a carrying layer and a to-be-carried layer which are parallel to each other, and the carrying layer is used for carrying and conveying an object to be detected; a detection mechanism comprising a radiation source, a detector component and a channel component, the channel component is configured with a first channel and a second channel, the carrying layer and the radiation source are located in the first channel, and the detector component is located in the second channel; and a mounting frame, the conveying mechanism and the detection mechanism are both mounted on the mounting frame; wherein the driven roller is located outside the conveying belt, the detector component is located on a side of the to-be-carried layer away from the carrying layer and close to the to-be-carried layer.

13. The detection device according to claim 12, wherein, The distance between the carrying layer and the to-be-carried layer is less than one tenth of the diameter of the driving roller. ​

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