Detector apparatus and ray irradiation apparatus

Abstract

Disclosed are a detector apparatus and a ray irradiation apparatus, being related to the technical field of radiation scanning. The detector apparatus comprises a detector box that defines a first accommodating space, one side of the detector box having a first slit for rays to pass through; a shielding assembly being located in the first accommodating space and defining a second accommodating space, one side of the shielding assembly having a second slit for rays to pass through, and the second slit being aligned with the first slit; S detectors being located in the second accommodating space and being configured to detect rays passing through the first slit and the second slit, S being an integer greater than or equal to 1; and a first sealing member being configured to cover the first slit, wherein the first sealing member allows rays to pass through so as to enter the first slit; the first sealing member works in conjunction with the detector box to enable the first accommodating space to form a sealed, waterproof space.

Description

Detector device and radiation irradiation device

[0001] This application claims priority to Chinese patent application No. 202311841992.6 filed on December 28, 2023, the contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of radiation scanning, and in particular to a detector device and a ray irradiation device. Background Art

[0003] Detectors are sometimes used in humid and warm environments. Due to the inadequate sealing of common detectors, their components are very sensitive to the operating environment. These conditions can cause performance issues and performance degradation, limiting their application. Therefore, designing detectors that are waterproof and moisture-proof while also meeting radiation protection requirements is a pressing issue.

[0004] The above information disclosed in this section is only for understanding the background of the disclosed concept of the present disclosure and therefore the above information may contain information that does not constitute the relevant art. Summary of the Invention

[0005] The present disclosure provides a detector device and a ray irradiation device.

[0006] According to a first aspect of the present disclosure, a detector device is provided, comprising: a detector box, which defines a first accommodating space, and a first slit is provided on one side of the detector box for rays to pass through; a shielding assembly, which is located in the first accommodating space and defines a second accommodating space, and a second slit is provided on one side of the shielding assembly for rays to pass through, and the second slit is aligned with the first slit; S detectors, which are located in the second accommodating space and are configured to detect rays passing through the first slit and the second slit, where S is an integer greater than or equal to 1; a first seal, which is configured to cover the first slit, wherein the first seal allows rays to pass through to enter the first slit; wherein the first seal cooperates with the detector box to form the first accommodating space into a sealed and waterproof space.

[0007] In some exemplary embodiments of the present disclosure, the detector box includes: a box body, which defines a space for accommodating each detector and an opening connected to the space; a box cover, which is located on one side of the opening and is configured to be connected to the box body in an openable and closable manner so as to move between an open position and a closed position relative to the box body; a second seal, which is placed in the connection area between the box body and the box cover, wherein the box body, the second seal and the box cover cooperate to define a first accommodating space; when the box cover is in the closed position, the first seal, the box body, the box cover and the second seal cooperate to form the first accommodating space into a sealed and waterproof space.

[0008] In some exemplary embodiments of the present disclosure, the box body includes: a container portion, which defines a space for accommodating each detector; a box body connecting portion, which is located on one side of the opening, and the first end of the box body connecting portion is connected to the opening edge portion of the container portion, and the second end of the box body connecting portion is connected to the box lid connecting portion of the box cover; wherein, the connection area includes the box body connecting portion and the box lid connecting portion, and the box body connecting portion and the box lid connecting portion cooperate to form a chamber, and the connection between the first end of the box body connecting portion and the opening edge portion of the container portion is located in the chamber.

[0009] In some exemplary embodiments of the present disclosure, the opening edge portion of the container portion is bent toward the outside of the box body to form a bent edge, and the box body connecting portion includes a first recessed portion, the recessed direction of the first recessed portion is toward the inside of the box body and is perpendicular to the ray direction; the first end of the box body connecting portion is connected to the opening edge portion of the container portion, including: the first end of the first recessed portion is connected to the bending point of the bent edge, and the first recessed portion, the bent edge and the box cover connecting portion cooperate to form a chamber.

[0010] In some exemplary embodiments of the present disclosure, the container portion includes a rectangular container, the first end and the bent edge of the first recessed portion are parallel to the slit surface of the rectangular container, the first slit is located on the slit surface, and the first end and the bent edge of the first recessed portion are flush and together constitute the first side of the chamber.

[0011] In some exemplary embodiments of the present disclosure, a recessed profile is provided in the connecting portion of the box cover to form a second recessed portion. When the box cover is in a closed position, the first recessed portion is opposite to the second recessed portion and has opposite recessed directions. The first recessed portion, the bent edge and the second recessed portion cooperate to form a chamber.

[0012] In some exemplary embodiments of the present disclosure, the second recessed portion at least partially overlaps with the projection of the bent edge along the ray direction, the end of the second recessed portion opposite to the bent edge is spaced a certain distance from the bent edge, and the first recessed portion, the bent edge and the second recessed portion cooperate to form a cavity with an opening.

[0013] In some exemplary embodiments of the present disclosure, the second sealing member is located in the cavity, and the second sealing member is at least partially located between the bent edge and the second recessed portion to seal the opening of the cavity.

[0014] In some exemplary embodiments of the present disclosure, the shielding assembly includes: a shielding layer configured to cover at least a portion of an inner surface of the detector box.

[0015] In some exemplary embodiments of the present disclosure, the shielding layer includes: a first shielding layer, configured to cover at least a portion of the inner surface of the box cover of the detector box; a second shielding layer, configured to cover at least a portion of the inner surface of the box body of the detector box, and the first shielding layer and the second shielding layer contact each other in the connection area between the box body and the box cover to define a second accommodating space.

[0016] In some exemplary embodiments of the present disclosure, a first seal is located on the outside of the detector box to cover the first slit, and the detector device further includes: a third seal, located on the inside of the detector box, configured to cover the second slit, wherein the third seal allows radiation to pass through to enter each detector.

[0017] In some exemplary embodiments of the present disclosure, at least one of the first sealing member and the third sealing member is configured to block incidence of visible light.

[0018] In some exemplary embodiments of the present disclosure, the box cover further includes: N sub-box covers, wherein every two adjacent sub-box covers are sealed and connected, and each sub-box cover is openably and closably connected to the box body so as to move between an open position and a closed position relative to the box body, and N is an integer greater than or equal to 2.

[0019] In some exemplary embodiments of the present disclosure, the detector device further includes: N sensing sensors corresponding one-to-one to the N sub-box covers, wherein each sensing sensor is configured to sense whether the corresponding sub-box cover is in an open position or a closed position.

[0020] According to a second aspect of the present disclosure, a radiation irradiation device is provided, comprising: a radiation source configured to emit radiation; and the above-mentioned detector device configured to detect radiation.

[0021] Additional aspects and advantages of the present disclosure will be given in part in the description that follows and, in part, will be obvious from the description that follows, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to better understand the present disclosure, the present disclosure will be described in detail according to the following drawings:

[0023] FIG1 schematically shows an application scenario diagram of a detector device according to an embodiment of the present disclosure.

[0024] FIG2 is a schematic structural diagram of a radiation irradiation device according to some exemplary embodiments of the present disclosure;

[0025] FIG3A is a schematic structural diagram of a detector device according to some exemplary embodiments of the present disclosure;

[0026] FIG3B is a schematic structural diagram of a detector device according to some exemplary embodiments of the present disclosure, wherein the box cover is in an open state;

[0027] FIG3C is a schematic cross-sectional view of the structure at AA in FIG3A ;

[0028] FIG4 is a schematic structural diagram of a box body according to some exemplary embodiments of the present disclosure;

[0029] FIG5 is a schematic structural diagram of a box cover according to some exemplary embodiments of the present disclosure;

[0030] FIG6 is a schematic structural diagram of a mounting frame assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure;

[0031] FIG7 is a schematic structural diagram of a radiation source assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure;

[0032] FIG8 is a schematic structural diagram of a detector assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure;

[0033] FIG9 is a schematic diagram of a partial structure of a detector device according to some exemplary embodiments of the present disclosure;

[0034] FIG10 is a schematic diagram of a partial structure of a detector device according to some other exemplary embodiments of the present disclosure;

[0035] FIG11 is a schematic diagram of a connection structure between a carrying portion and a bracket portion in a detector device according to some exemplary embodiments of the present disclosure;

[0036] FIG12 is an exploded view of a detector device according to some exemplary embodiments of the present disclosure;

[0037] FIG13 is a schematic structural diagram of a first connecting plate in a detector device according to some exemplary embodiments of the present disclosure;

[0038] FIG14 is a schematic diagram of a connection structure between a carrying portion and a detector in a detector device according to some exemplary embodiments of the present disclosure;

[0039] FIG15 is a schematic structural diagram of a carrying portion in a detector device according to some exemplary embodiments of the present disclosure;

[0040] FIG16 is a schematic structural diagram of adjustments in a detector device according to other exemplary embodiments of the present disclosure; and

[0041] FIG. 17 is a schematic structural diagram of adjustments in a detector device according to further exemplary embodiments of the present disclosure.

[0042] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the sizes of the overall / local structures or overall / local areas may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0043] Specific embodiments of the present disclosure will be described in detail below. It should be noted that the embodiments described herein are intended to be illustrative only and are not intended to limit the present disclosure. In the following description, a large number of specific details are set forth to provide a thorough understanding of the present disclosure. However, it will be apparent to those skilled in the art that these specific details are not necessarily required to practice the present disclosure. In other examples, known structures, materials, or methods are not specifically described to avoid obscuring the present disclosure.

[0044] The embodiments of the present disclosure provide a detector device and a ray irradiation device. Before introducing the technical solutions provided by the embodiments of the present disclosure, the related technologies involved in the present disclosure are first described.

[0045] In related technologies, detectors are sometimes used in humid and warm environments. Due to the lack of sealing in common detectors, their components are very sensitive to the operating environment. These conditions can cause abnormal performance and degradation in detector specifications, limiting their application. Therefore, it is necessary to consider the waterproof and moisture-proof design of the detector while also meeting radiation protection requirements.

[0046] For example, meat grading equipment currently operates in a different environment, operating conditions, and requirements than most security inspection equipment used for baggage inspection. Meat inspection requires constant rinsing, resulting in high humidity levels in the on-site testing environment, often reaching saturation. Therefore, to prevent humidity from affecting the detection performance of meat grading equipment, the equipment must meet radiation protection requirements while also being waterproof and moisture-resistant.

[0047] In view of this, an embodiment of the present disclosure provides a detector device, wherein the detector device includes: a detector box, which defines a first accommodating space, and a first slit is provided on one side of the detector box for rays to pass through; a shielding assembly, which is located in the first accommodating space and defines a second accommodating space, and a second slit is provided on one side of the shielding assembly for rays to pass through, and the second slit is aligned with the first slit; S detectors, which are located in the second accommodating space and are configured to detect rays passing through the first slit and the second slit, where S is an integer greater than or equal to 1; a first seal, which is configured to cover the first slit, wherein the first seal allows rays to pass through to enter the first slit; wherein the first seal cooperates with the detector box to form the first accommodating space into a sealed and waterproof space. The detector is installed in the detector box, and the detector box cooperates with the first seal to enable the detector to work in a sealed environment, which is not easily infiltrated with water and is not easily affected by the surrounding humid environment, thereby ensuring the normal operation of the detector and extending the service life of the detector. In addition, the S detectors are placed in the second accommodation space defined by the shielding assembly, and the shielding assembly is placed in the detector box, so that the detector device can meet the requirements of radiation protection, waterproof and moisture-proof design, and protect internal components from damage.

[0048] Figure 1 schematically illustrates an application scenario of a detector device according to an embodiment of the present disclosure. It should be noted that Figure 1 is merely an example of an application of the present disclosure to help those skilled in the art understand the technical content of the present disclosure, and does not mean that the present disclosure cannot be applied to other devices, systems, environments, or scenarios.

[0049] As shown in FIG. 1 , the application scenario 900 according to this embodiment may include: a shielding body 901 , a frame 902 , a ray source 903 , a detection assembly 904 , an assembly line 905 and a hoisting component 906 .

[0050] The shielding body 901 surrounds and forms a detection channel G. The object to be detected is lifted by the lifting component 906 and can pass through the detection channel G. The shielding body 901 is supported by the frame 902. A radiation source 903 is provided on one side of the shielding body 901. The radiation source 903 emits radiation for detecting the object to be detected as it passes through the detection channel G. The shielding body 901 has a first slit for the radiation to pass through. The detection assembly 904 is provided on the other side of the shielding body 901. The detection assembly 904 receives the radiation emitted by the radiation source 903 and passes through the detection channel G. The shielding body 901 has a second slit for the radiation to pass through after passing through the object to be detected.

[0051] The detection assembly 904 includes a detector box and a plurality of detectors.

[0052] In some embodiments, the detector box is a rectangular parallelepiped, and the detector box is arranged along the height direction of the shielding body 901. Multiple detectors are installed in the detector box, and the multiple detectors are arranged at intervals along the length direction of the detector box.

[0053] The top of the shielding body 901 is formed with an opening extending from the entrance to the exit of the detection channel G. An assembly line 905 is positioned above the opening of the shielding body 901. A hoisting assembly 906 is connected to and located below the assembly line 905. The assembly line 905 is capable of driving the hoisting assembly 906 to move. The hoisting assembly 906 is used to lift the object being inspected. The assembly line 905 uses the hoisting assembly 906 to move the object through the detection channel G.

[0054] The hanging component 906 may be a device with the function of fixing objects, including but not limited to a hook, a clip, a hanging rope, etc.

[0055] The objects to be inspected can be meat, workpieces, food products, etc.

[0056] The object under inspection is driven by the assembly line 905 through the opening into the inspection channel G. When the object under inspection moves to the middle of the inspection channel G (for example only), the radiation source 903 generates radiation that passes through the first slit into the inspection channel. The radiation passes through the object under inspection and is received by the detection detection assembly 904 through the second slit. The detection assembly 904 performs analysis and detection based on the received radiation.

[0057] The ray irradiation device according to the embodiment of the present disclosure will be described in detail below with reference to FIG. 2 .

[0058] FIG2 is a schematic structural diagram of a radiation irradiation device according to some exemplary embodiments of the present disclosure.

[0059] As shown in FIG2 , the radiation irradiation device includes: a radiation source assembly 1, a detector assembly 2, and a mounting frame assembly 3. The radiation source assembly 1 includes a first shielding member 5 having a third slit 511 (corresponding to the first slit in FIG1 ). The radiation source assembly 1 is configured to emit radiation through the third slit 511 to scan a target object 9 (corresponding to the object to be detected) within a detection channel. The detector assembly 2 includes a second shielding member 6 having a second slit 611 (corresponding to the second slit in FIG1 ). The detector assembly 2 is configured to detect radiation passing through the second slit 611. The radiation source assembly 1 and the detector assembly 2 are mounted on the mounting frame assembly 3 to define a detection channel 4 (corresponding to the detection channel G in FIG1 ). The first shielding member 5 and the second shielding member 6 are separate and are each separately fixed to the mounting frame assembly 3 to serve as a side wall of the detection channel. The first mark on the radiation source assembly 1 and the second mark on the detector assembly 2 are located on the beam exit surface of the radiation, with the first mark aligned with the third slit 511 and the second mark aligned with the second slit 611. By setting a first mark on the ray source assembly 1 and a second mark on the detector assembly 2, the first mark and the second mark are both located on the beam-exit surface of the ray. During installation, even if the first shielding component and the second shielding component are separated, accurate positioning between the ray source and the detector can be achieved by ensuring that the first mark is aligned with the second mark, and the third slit 511 is precisely aligned with the second slit 611, so that the detector has a better ray detection effect.

[0060] Regarding the detector assembly, the detector device (ie, the above-mentioned detector assembly) according to the embodiment of the present disclosure will be described in detail below with reference to FIG. 3A to FIG. 5 .

[0061] Figure 3A is a structural schematic diagram of a detector device according to some exemplary embodiments of the present disclosure; Figure 3B is a structural schematic diagram of a detector device according to some exemplary embodiments of the present disclosure, wherein the box cover is in an open state; Figure 3C is a cross-sectional structural schematic diagram at AA in Figure 3A.

[0062] As shown in FIG. 3A , 3B and 3C , the detector device (ie, the above-mentioned detector assembly) includes: a detector box 1 a , a shielding assembly 2 a , S detectors 3 a and a first sealing member 4 a .

[0063] The detector box 1a defines a first accommodating space, and a first slit 13a is provided on one side of the detector box 1a for rays to pass through. The first seal 4a is configured to cover the first slit 13a. The first seal 4a allows rays to pass through to enter the first slit 13a; the first seal 4a cooperates with the detector box 1a to form the first accommodating space into a sealed and waterproof space.

[0064] The shielding assembly 2a is located in the first accommodating space and defines a second accommodating space. A second slit for rays to pass through is provided on one side of the shielding assembly 2a close to the first slit 13a. The second slit is aligned with the first slit 13a.

[0065] The device includes multiple detectors 3a. Multiple mounting brackets 9a are provided in the second storage space. The mounting brackets 9a are evenly spaced along the first direction D1 (the length direction of the detector box 1a). One mounting bracket 9a corresponds to one detector 3a, and each detector 3a is mounted on the mounting bracket 9a.

[0066] It is understandable that when the detector 3a is working, multiple detectors 3a receive the rays passing through the first slit 13a and the second slit for analysis. The detector box 1a and the first seal 4a cooperate to form a sealed waterproof space, isolating the meat product detection environment from the working environment of the detector 3a, so that the humid air in the meat product detection environment is not easy to affect the working environment of the detector 3a, thereby ensuring the good detection performance of the detector 3a. The detector 3a and the mounting bracket 9a are installed as a whole in the sealed waterproof space, so that there are no exposed standard parts and adjustment parts on the outside of the detector box 1a, reducing the number of standard parts on the detector box 1a, so as to achieve the purpose of reducing leakage points. At the same time, the shielding component 2a can block the leakage of radiation rays, so that the detector box 1a also has the function of radiation protection. The present disclosure is not limited to meat product detection.

[0067] Continuing with FIG3C , in some embodiments, the detector 3a assembly further includes a third seal 6a. The first seal 4a is located outside the detector housing 1a, covering the first slit 13a. The third seal 6a is located inside the shield assembly 2a and is configured to cover the second slit. The third seal 6a allows radiation to pass through and enter each detector 3a, improving waterproof and moisture-proof performance.

[0068] In some embodiments, both the first sealing member 4 a and the third sealing member 6 a block the incidence of visible light.

[0069] For example, the first sealing member 4a and the third sealing member 6a can both be black plastic sheets that allow radiation to pass through while blocking visible light, so that the detector 3a is less susceptible to the influence of visible light when receiving radiation.

[0070] It should be noted that the presently disclosed embodiments do not specifically limit whether both the first sealant 4a and the third sealant 6a can block visible light, and can be adjusted based on actual needs. For example, the first sealant 4a can be configured to block visible light, while the third sealant 6a can be configured not to block visible light; alternatively, the third sealant 6a can be configured to block visible light, while the first sealant 4a can be configured not to block visible light.

[0071] It can be understood that the first sealing member 4a and the third sealing member 6a can block visible light while also forming a double-layer seal between the first slit 13a and the second slit, thereby further improving the sealing performance of the device.

[0072] In some embodiments, the detector box 1 a includes: a box body 11 a , a box cover 12 a and a second sealing member 5 a .

[0073] The main body of the box body 11a is rectangular, and the box body 11a defines a space for installing each detector 3a. The box body 11a is open on one side of the second direction D2 (i.e., the upper surface of the box body 11a), and the opening is connected to the space formed by the box body 11a. The box body 11a is provided with a first slit 13a for radiation to pass through on the other side of the second direction D2 (i.e., the lower surface of the box body 11a), and the first slit 13a is arranged along the first direction D1 (i.e., the length direction of the box body 11a).

[0074] One side of the box cover 12a is hinged to the box body 11a, and the hinge axis is consistent with the length direction of the box body 11a. The other side of the box cover 12a can realize the opening and closing of the box cover 12a and the box body 11a through a buckle.

[0075] The second sealing member 5a is arranged in the connection area between the box body 11a and the box cover 12a. The box body 11a, the second sealing member 5a and the box cover 12a cooperate to define a first accommodating space; when the box cover 12a is in the closed position, the first sealing member 4a cooperates with the box body 11a, the box cover 12a and the second sealing member 5a to form the first accommodating space into a sealed and waterproof space.

[0076] It is understood that the split design of the detector box 1a facilitates maintenance of the detector 3a inside the box body 11a. The box body 11a, the box cover 12a and the second sealing member 5a cooperate to ensure both the convenience of use and the sealing performance of the detector box 1a.

[0077] Fig. 4 is a schematic structural diagram of a box body according to some exemplary embodiments of the present disclosure. Fig. 5 is a schematic structural diagram of a box cover according to some exemplary embodiments of the present disclosure.

[0078] In some exemplary embodiments of the present disclosure, referring to FIG. 3C and FIG. 5 , the box body 11 a includes a container portion 111 a and a box body connecting portion 112 a .

[0079] The container portion 111a forms the main body of the detector box 1a, defining a space for accommodating each detector 3a. One side of the container portion 111a is open, and the first slit 13a is located on the side of the container portion 111a away from the opening. The box body connecting portion 112a is located on the side of the opening. The first end of the box body connecting portion 112a is connected to the edge of the opening of the container portion 111a, and the second end of the box body connecting portion 112a is designed to abut against the box cover 12a.

[0080] 3C and 4 , the lid 12a includes a lid body 121a and a lid connecting portion 122a. The lid connecting portion 122a is disposed around the lid body 121a. When the lid 12a is snapped onto the opening of the box body 11a, the second end of the box body connecting portion 112a is in contact with a side of the lid connecting portion 122a that is closer to the box body 11a.

[0081] The connection area includes a box body connection part 112a and a box lid connection part 122a. The box body connection part 112a and the box lid connection part 122a cooperate to form a chamber 7a. The connection between the first end of the box body connection part 112a and the opening edge of the container part 111a is both located in the chamber 7a. The second sealing member 5a is provided in the connection area, and the second sealing member 5a is used to seal the chamber 7a.

[0082] According to an embodiment of the present disclosure, by placing the connection between the first end of the box body connection part and the opening edge part of the container part in the cavity 7a, the connection part will not be exposed outside the cavity 7a and cause water to enter, thereby achieving the purpose of waterproofing and moisture-proofing.

[0083] In some exemplary embodiments of the present disclosure, with continued reference to FIG. 3C , the opening edge of the container portion 111a is bent toward the exterior of the box body 11a to form a horizontally arranged bent edge 1111a. The bent edge 1111a is integrally formed with the container portion 111a. The first end of the box body connecting portion 112a is connected and fixed to the opening edge of the container portion 111a. The box body connecting portion 112a includes a first recessed portion 1121a. The recessed direction of the first recessed portion 1121a is toward the interior of the box body 11a and perpendicular to the direction of the ray.

[0084] Specifically, the first end of the box body connecting portion 112a can be fixed to the bending position of the bending edge 1111a by welding, and the welding is required to be continuous and without cold welds.

[0085] According to an embodiment of the present disclosure, the first recessed portion, the bent edge and the cover connection portion cooperate to form a chamber 7a, which can facilitate the connection being located within the chamber 7a and provide a space for accommodating the seal to achieve a good sealing effect.

[0086] In some embodiments, the first end of the box body connecting portion 112a is connected to the opening edge of the container portion 111a, including: the first end of the first recessed portion 1121a is fixedly connected to the bend of the bent edge 1111a, and the second side of the first recessed portion 1121a away from the container portion 111a is connected to the box lid connecting portion 122a. The first end of the first recessed portion 1121a and the bent edge 1111a are both parallel to the slit surface of the container portion 111a, and the first slit 13a is located on the slit surface. The first recessed portion 1121a, the bent edge 1111a, and the box lid connecting portion 122a cooperate to form the chamber 7a. The first side of the first recessed portion 1121a near the container portion 111a and the bent edge 1111a are located in the same plane, and the first end of the first recessed portion 1121a and the bent edge 1111a are flush and together form the first side of the chamber 7a.

[0087] According to an embodiment of the present disclosure, a flush first side is provided and the connection is located on the first side, so that the sealing member is brought into contact with the first side for good sealing.

[0088] In some exemplary embodiments of the present disclosure, with continued reference to FIG3C , the lid connecting portion 122a includes a second recessed portion 1221a, and the edge portion of the lid 12a has a recessed profile to form the second recessed portion 1221a. The second recessed portion 1221a is connected to the lid body 121a away from the first side of the box body 11a. When the lid 12a is in the closed position, the first recessed portion 1121a and the second recessed portion 1221a are opposite and recessed in opposite directions. The second recessed portion 1221a is arranged parallel to the second side of the box body 11a and the bent edge 1111a, and the second side of the second recessed portion 1221a is located between the two opposite sides of the first recessed portion 1121a. The first recessed portion 1121a, the bent edge 1111a, and the second recessed portion 1221a cooperate to form the chamber 7a.

[0089] According to an embodiment of the present disclosure, the first recessed portion is opposite to the second recessed portion and has opposite recessed directions. The cavity 7a formed by the three can keep the above-mentioned connection away from the edge of the cavity 7a, that is, away from external water, effectively waterproof and moisture-proof.

[0090] In some exemplary embodiments of the present disclosure, with continued reference to Figures 3C and 4, the second recessed portion 1221a overlaps with the projection of the bent edge 1111a along the radial direction. The end of the second recessed portion 1221a opposite the bent edge 1111a is spaced a certain distance from the bent edge 1111a. The first recessed portion 1121a, the bent edge 1111a, and the second recessed portion 1221a cooperate to form a chamber 7a having an opening.

[0091] According to an embodiment of the present disclosure, providing an opening facilitates installation and sealing of a seal.

[0092] In some exemplary embodiments of the present disclosure, referring to FIG. 3C , the second sealing member 5a is located in the chamber 7a , and the second sealing member 5a is at least partially located between the bent edge 1111a and the second recessed portion 1221a to seal the opening of the chamber 7a .

[0093] Exemplarily, the second sealing member 5a is a self-clamping sealing strip that is integrally formed. One side of the self-clamping sealing strip is connected to the second side of the second recessed portion 1221a. When the lid 12a is in the closed position, the self-clamping sealing strip is deformed, and the other side of the self-clamping sealing strip abuts against the bent edge 1111a.

[0094] It can be understood that when the box cover 12a is buckled onto the box body 11a, as the box cover 12a gradually rotates toward the side of the box body 11a, the self-clamping sealing strip is deformed to seal the opening of the chamber 7a. The sealed chamber 7a forms a sealing area outside the connection between the box body 11a and the box cover 12a, thereby sealing the connection area between the box body 11a and the box cover 12a.

[0095] In other embodiments, the second sealing member 5a can also be a sealing strip with a single-sided adhesive backing, and a glue machine is used to apply glue at the opening of the chamber 7a for sealing. When a finished sealing strip is used, when the box cover 12a is in the closed position, sealant is applied to the connection between the sealing strip and the bent edge 1111a.

[0096] In some exemplary embodiments of the present disclosure, as shown in FIG3C , shielding assembly 2a includes a shielding layer 21a covering the inner surface of detector housing 1a. This prevents the material of shielding layer 21a from contaminating the target object being scanned. For example, when scanning meat, shielding layer 21a prevents contact with the meat, thereby preventing contamination.

[0097] In some embodiments, the shielding layer 21 a includes a first shielding layer 211 a and a second shielding layer 212 a .

[0098] The first shielding layer 211a covers the inner surface of the cover body 121a of the detector box 1a. The second shielding layer 212a covers the inner surface of the container portion 111a and the box body connecting portion 112a. The first shielding layer 211a and the second shielding layer 212a contact each other at the connection area between the box body 11a and the box cover 12a to define a second storage space.

[0099] Exemplarily, both the first shielding layer 211 a and the second shielding layer 212 a may be lead sheets.

[0100] It is understood that the lead sheet can prevent the radiation leakage in the box body 11a and has a protective effect. At the same time, the structure of the box body 11a prevents the lead sheet from leaking out and is sealed inside the box body 11a, thereby improving the safety of the device.

[0101] In some exemplary embodiments of the present disclosure, as shown in FIG3B and FIG5 , in order to facilitate the opening and closing of the detector box 1a, the box cover 12a includes a plurality of sub-box covers 12a, where every two adjacent sub-box covers 12a are sealed together, and each sub-box cover 12a is openably connected to the box body 11a to move between an open position and a closed position relative to the box body 11a.

[0102] Specifically, the embodiment of the present disclosure is described using two sub-box covers 12a as an example. As shown in FIG5 , the device further includes a partition plate 10a, which is disposed in the middle of the box body 11a. The two ends of the partition plate 10a are respectively connected to the opposite sides of the box body 11a along the length direction. The partition plate 10a divides the opening of the box body 11a into a first part and a second part. The partition plate 10a does not separate the interior of the box body 11a. When performing a sealing design, the box body connection portion 112a of the first part is connected and fixed to the box body connection portion 112a of the second part through the partition plate 10a. The partition plate 10a is integrally formed with the box body connection portion 112a of the first part and the box body connection portion 112a of the second part. At the same time, a shielding layer 21a is also provided on the inner side of the partition plate 10a. The shielding layer 21a is integrally provided with the box body connection portion 112a and the shielding layer 21a of the container portion 111a.

[0103] It is understandable that, when the box body 11 a is long, the design of the multiple box covers 12 a facilitates the staff to open and close the box covers 12 a separately.

[0104] It should be noted that the embodiment of the present disclosure does not specifically limit the number of sub-covers 12a, and can be adjusted according to the actual length of the box body 11a. For example, when the box body 11a is small, one sub-cover 12a can be provided; when the box body 11a is long, three, four, or five sub-covers 12a can be provided.

[0105] In some exemplary embodiments of the present disclosure, as shown in Figure 3A, the detector 3a device further includes: a plurality of inductive sensors 8a. One inductive sensor 8a corresponds to one sub-box cover 12a. Each inductive sensor 8a is configured to sense that the corresponding sub-box cover 12a is in an open position or a closed position. When the inductive sensor 8a senses that its corresponding sub-box cover 12a is open, the beam of the ray source is stopped to improve the safety of the device.

[0106] In other embodiments, the detector box 1a can be integrally formed, and the detector box 1a and the first sealing member 4a cooperate to form the first accommodation space into a sealed and waterproof space.

[0107] The other components of the radiation irradiation device are described below in conjunction with FIG. 6 to FIG. 8 .

[0108] FIG6 is a schematic structural diagram of a mounting frame assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure.

[0109] As shown in FIG. 2 and FIG. 6 , the radiation irradiation device includes: a radiation source assembly 1 , a detector assembly 2 and a mounting frame assembly 3 .

[0110] The mounting frame assembly 3 serves as a mounting base for other components of the radiation irradiation device.

[0111] In some embodiments, the mounting frame assembly 3 includes: a main frame 31 , at least one first support beam 32 , and at least one second support beam 33 .

[0112] 6 , the main frame 31 is rectangular in shape, with two first support beams 32 and one second support beam 33 arranged crisscrossly inside the main frame 31. The two first support beams 32 are installed inside the main frame 31, and both first support beams 32 are arranged along the second direction D2 (the width direction of the main frame 31), and the two first support beams 32 are arranged in parallel and spaced apart along the first direction D1 (the length direction of the main frame 31). The two ends of the two first support beams 32 are respectively fixed to the main frame 31. The second support beam 33 is installed inside the main frame 31, and the second support beam 33 is arranged along the first direction D1 (the length direction of the main frame 31), and the two ends of the second support beam 33 are also respectively fixed to the main frame 31. Among them, the first direction D1 and the second direction D2 are perpendicular to each other.

[0113] It should be noted that the embodiment of the present disclosure does not impose any specific limitation on the number of the first support beams 32 and the second support beams 33. The number of the first support beams 32 and the second support beams 33 installed can be adjusted according to actual application requirements. The number of the first support beams 32 and the second support beams 33 is an integer greater than or equal to 1.

[0114] In some exemplary embodiments of the present disclosure, with continued reference to FIG. 1 and FIG. 2 , the mounting frame assembly 3 further includes a third shielding plate 7 .

[0115] The third shielding plate 7 is laid flat on the main frame 31 and is located between the two first support beams 32. The third shielding plate 7 serves as a side wall of the detection channel 4.

[0116] Exemplarily, the third shielding plate 7 is a lead plate.

[0117] FIG7 is a schematic structural diagram of a radiation source assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure.

[0118] The radiation source assembly 1 of the embodiment of the present disclosure will be described in detail below with reference to FIG. 2 and FIG. 7 .

[0119] As shown in FIG. 1 and FIG. 3 , the radiation source assembly 1 includes a first shielding member 5 having a third slit 511 .

[0120] In some exemplary embodiments of the present disclosure, the first shielding member 5 includes a first shielding plate 51 .

[0121] The first shielding plate 51 is arranged along the third direction D3, wherein the third direction D3, the first direction D1 and the second direction D2 are perpendicular to each other. The first shielding plate 51 is fixed on a first support beam 32. A third slit 511 is formed on the first shielding plate 51.

[0122] Exemplarily, the first shielding plate 51 is a lead plate.

[0123] In some embodiments, the radiation source assembly 1 further comprises: a radiation source 903 and a first scale 12 having a first scale value. The first mark comprises the first scale value and is aligned with the beam exit surface of the radiation source assembly 1 .

[0124] Specifically, first scale 12 is disposed on radiation source 903, with the first scale value being the zero line of first scale 12. First scale 12 is parallel to the axis of the tube of radiation source 903, and the first scale value is aligned with the beam exit surface. Radiation is emitted from the tube, along the beam exit surface, through third slit 511, into detection channel 4, and irradiates target object 9.

[0125] In other embodiments, the first scale 12 may also be disposed on the first shielding plate 51 .

[0126] FIG8 is a schematic structural diagram of a detector assembly in a radiation irradiation device according to some exemplary embodiments of the present disclosure.

[0127] The detector assembly of the embodiment of the present disclosure is described in detail below with reference to FIG. 2 and FIG. 8 .

[0128] As shown in FIG. 1 and FIG. 7 , the detector assembly 2 includes a second shielding member 6 having a second slit 611 .

[0129] In some exemplary embodiments of the present disclosure, the second shielding member 6 includes a second shielding plate 61 having a second slit 611 formed therein.

[0130] The second shielding plate 61 is arranged along the third direction D3. The second shielding plate 61 is fixed to another first support beam 32. A second slit 611 is defined in the second shielding plate 61. The first shielding plate 51 and the second shielding plate 61 are arranged opposite each other. The first shielding plate 51 and the second shielding plate 61 are located on either side of the third shielding plate 7. The first shielding plate 51, the second shielding plate 61, and the third shielding plate 7 together form the inner sidewall of the detection channel 4. The radiation source 903 on the first shielding plate 51 and the detector box 1a on the second shielding plate 61 form a detection area within the detection channel 4.

[0131] Exemplarily, the second shielding plate 61 is a lead plate.

[0132] It can be understood that setting the shielding plate as a lead plate has a protective effect and improves the safety of the device when in use.

[0133] In some embodiments, the detector assembly 2 further comprises: a detector box 1 a and a second scale 22 having a second scale value. The second mark comprises the second scale value and is aligned with the beam exit surface of the radiation source assembly 1 .

[0134] Specifically, the detector box 1a is in an elongated shape and is arranged along the third direction D3. A plurality of detectors are arranged in the detector box 1a at intervals along the length of the detector box 1a. The detector box 1a is provided with a first slit 13a for radiation to pass through.

[0135] The second scale 22 is disposed on the second shielding plate 61. The second scale value is the zero line of the second scale 22. The second scale 22 is perpendicular to the length of the detectors. The second scale value is aligned with the main beam plane of the multiple detectors. After passing through the target object 9, the rays pass through the second slit 611 and the first slit 13a and are received by the detectors along the main beam plane.

[0136] In other embodiments, the second scale 22 may also be provided on the detector box 1 a.

[0137] It can be understood that the first scale value is aligned with the beam exit surface of the radiation source 903, and the second scale value is aligned with the main beam plane of the detector. This allows the third slit 511 to correspond to the first scale value, while the second slit 611 and the first slit 13a correspond to the second scale value. During installation, alignment between the radiation source 903 and the detector can be achieved by aligning the orthographic projections of the first and second scale values ​​on the third shielding plate 7 on the same straight line. Specifically, the orthographic projection of the beam exit surface along the third direction D3 can be aligned with this straight line.

[0138] It should be noted that in the disclosed embodiment, the first scale 12 and the second scale 22 can be located at different heights in the third direction D3. When located at different heights, during the alignment of the radiation source 903 and the detector box 1a, the orthographic projections of the first and second scale values ​​on the third shielding plate 7 can be made to lie on the same straight line. For convenience, the first scale 12 and the second scale 22 can be set to the same height. In this case, it is sufficient to ensure that the first and second scale values ​​lie on the same straight line, which is located at the beam exit surface.

[0139] It should be noted that the embodiment of the present disclosure does not make any specific restrictions on the selection of the first scale value and the second scale value. The first scale value can also select other scale lines of the first scale 12, and the second scale value can also select other scale lines of the second scale 22. However, when performing alignment calibration, it is necessary to ensure that the first scale value and the second scale value are aligned.

[0140] In some embodiments, the first shielding member 5 and the second shielding member 6 are each fixed through threaded holes on two first support beams 32; wherein, before fixing the first shielding member 5 and the second shielding member, the two first support beams 32 are first welded inside the main frame 31, and then threaded holes are opened.

[0141] Specifically, the first support beams 32 and second support beams 33 are first secured to the interior of the main frame 31 by welding. Threaded holes are then formed in the two first support beams 32, and bolts are installed in the first and second shielding plates 51, 61. When installing the first and second shielding plates 51, 61, the bolts are tightened into the threaded holes, securing the first and second shielding plates 51, 61 to the two first support beams 32, respectively.

[0142] It can be understood that the first support beam 32 and the second support beam 33 are first fixed to the main frame 31 by welding, and then threaded holes for installing the first shielding plate 51 and the second shielding plate 61 are opened on the two first support beams 32 to ensure processing accuracy. Compared with the method of first opening the threaded holes and then welding, the threaded holes are not easily affected by welding and deformed, thereby ensuring the accuracy of the position of the first shielding plate 51 and the second shielding plate 61 during installation, and reducing the amount of adjustment during the subsequent installation of the first shielding plate 51 and the second shielding plate 61.

[0143] In some embodiments, to facilitate maintenance of the detector box 1a, a ladder 10 is provided on the side of the second shielding plate 61 away from the first shielding plate 51. The ladder 10 is arranged upwardly and tilted, with one end of the ladder 10 fixedly connected to the main frame 31 and the other end fixedly connected to the second shielding plate 61. A protective cage 11c is provided at the upper end of the ladder 10.

[0144] 2 , the detection channel 4 includes an opening located at one side of the detection channel 4 , extending from the inlet of the detection channel 4 to the outlet of the detection channel 4 .

[0145] For example, the opening may be opened on a solid body on one side of the detection channel 4; or it may be directly surrounded by a plurality of solid bodies (ie shielding plates), ie there is no solid body on the side corresponding to the opening.

[0146] As shown in Figures 1 and 2, the first shielding plate 51, the second shielding plate 61, and the third shielding plate 7 enclose a detection channel 4 with an opening on one side. The side of the detection channel 4 away from the third shielding plate 7 has no sidewalls, and the opening is located on the side of the detection channel 4 away from the mounting frame assembly 3.

[0147] In other embodiments, the device further includes a fourth shielding plate, which is arranged opposite to the third shielding plate 7. Opposite sides of the fourth shielding plate are respectively connected to the first shielding plate 51 and the second shielding plate 61 on a side away from the third shielding plate 7. The fourth shielding plate has an opening arranged along the second direction D2. The first shielding plate 51, the second shielding plate 61, the third shielding plate 7, and the fourth shielding plate enclose a detection channel 4, and the opening of the detection channel 4 in the fourth shielding plate forms an opening portion.

[0148] In some exemplary embodiments of the present disclosure, with continued reference to FIG. 2 , the device further includes a hanging rail 8 .

[0149] Specifically, the hanging rail 8 is positioned above the opening, and the target object 9 is configured to be moved along the extension direction of the opening by the hanging rail 8. The target object 9 is moved along the extension direction of the opening so as to be scanned while moving from the entrance to the exit of the inspection channel 4. For example, the specific structure of one embodiment of the hanging rail 8 can refer to the hanging assembly 906 and assembly line 905 shown in Figure 1, but the present disclosure is not limited thereto.

[0150] It is understandable that setting the detection channel 4 as an open structure facilitates the target object 9 to be detected to pass through the detection channel 4, thereby improving the applicability of the device.

[0151] In order to facilitate understanding of the embodiments of the present disclosure, the specific implementation principles of the embodiments of the present disclosure are described.

[0152] When installing the radiation irradiation device, the first support beam 32 and the second support beam 33 can be pre-welded to the main frame 31 in a predetermined manner, and threaded holes can be opened in the first support beam 32 to form the mounting frame assembly 3. The radiation source 903 can be pre-mounted on the first shielding plate 51, and a first scale 12 can be provided on the radiation source 903, with the first scale value of the first scale 12 aligned with the beam exit plane. A third slit 511 can be opened in the first shielding plate 51 according to the first marking, thereby forming the radiation source assembly 1. The detector box 1a can be pre-mounted on the second shielding plate 61, and a first slit 13a can be opened in the detector box 1a according to the main beam plane of the detector inside the detector box 1a. A second scale 22 can be provided on the first shielding plate 51, with the second scale value of the second scale 22 aligned with the main beam plane. A second slit 611 can be opened in the second shielding plate 61 according to the second marking, thereby forming the detector assembly 2. Install the first shielding plate 51 in the radiation source assembly 1 onto one first support beam 32 of the mounting frame assembly 3 using bolts and threaded holes. Install the second shielding plate 61 in the detector assembly 2 onto the other first support beam 32 of the mounting frame assembly 3 using bolts and threaded holes. Place the third shielding plate 7 on the mounting frame assembly 3, with the first shielding plate 51 and the second shielding plate 61 positioned on either side of the third shielding plate 7. Position the hanging rail 8 above the opening of the detection channel 4 to ensure that the hanging rail 8 can carry the target object 9 through the detection channel 4.

[0153] When the radiation irradiation device is working, the target object 9 is driven by the hanging rail 8 to move along the extension direction of the opening of the detection channel 4, and the target object 9 enters from the entrance of the detection channel 4. When the target object 9 enters the detection channel 4 and enters the detection area, the radiation generated by the radiation source 903 passes through the third slit 511 and the target object 9 in the detection area. The radiation that passes through the target object 9 is sequentially received by the detector in the detector box 1a through the second slit 611 and the first slit 13a, and the detector analyzes the received radiation.

[0154] In order to facilitate the understanding of the installation structure of the detector 3a in the detector box 1a, a detailed description is given in conjunction with Figures 9 to 17.

[0155] The present disclosure also provides a detector device, comprising: a bracket portion 1b defining an installation space; S supporting portions 2b located within the installation space, each supporting portion 2b being provided with a positioning mark 4b, each supporting portion 2b being connected to the bracket portion 1b, where S is an integer greater than or equal to 2; and S detectors 3a mounted one-to-one to the S supporting portions 2b, wherein the crystal portion of each detector 3a is aligned with the positioning mark 4b on the supporting portion 2b to which it is mounted, the crystal portion being configured to receive radiation; wherein the S positioning marks 4b are positioned on the same straight line, which is located at the beam exit plane of the radiation. When the detectors 3a are mounted, each detector 3a is mounted on its corresponding supporting portion 2b, firstly aligning the crystal surface of the detector 3a with the positioning mark 4b on the supporting portion 2b, and then, based on the positioning mark 4b on each supporting portion, adjusting the multiple positioning marks to be positioned on the same straight line, and adjusting the multiple positioning marks 4b to be positioned on the same straight line (which is located at the beam exit plane of the radiation source), thereby achieving alignment of the crystal portions of the multiple detectors 3a and improving the radiation reception efficiency of the detectors 3a. The positioning mark 4b not only facilitates positioning of the crystal portion of each detector 3a, but also enables rapid alignment of the crystal portions of multiple detectors 3a, thereby improving the efficiency of installation and commissioning of the detectors 3a.

[0156] FIG9 is a schematic diagram of a partial structure of a detector device according to some exemplary embodiments of the present disclosure; FIG10 is a schematic diagram of a partial structure of a detector device according to some other exemplary embodiments of the present disclosure.

[0157] The detector device according to the embodiment of the present disclosure will be described in detail below with reference to FIG9 and FIG10 .

[0158] As shown in FIG9 and FIG10 , the detector device includes: a bracket portion 1 b , at least one carrying portion 2 b and at least one detector 3 a .

[0159] The bracket portion 1b is fixedly installed in the detector box 1a. The bracket portion 1b defines an installation space and serves as a basis for installing other components in the detector device.

[0160] In some embodiments, the bracket portion 1 b includes a first side bracket 11 b and a second side bracket 12 b .

[0161] The first side bracket 11b and the second side bracket 12b are both elongated and arranged along the length of the detector box 1a. They are spaced apart from each other and are fixedly connected to the detector box 1a. A mounting space for the detector 3a is defined between the first side bracket 11b and the second side bracket 12b.

[0162] At least one load-bearing portion 2b is located within the mounting space between the first side bracket 11b and the second side bracket 12b and is spaced apart along the length of the detector box 1a. The two sides of the load-bearing portion 2b are fixedly connected to the first side bracket 11b and the second side bracket 12b, respectively. One detector 3a corresponds to each load-bearing portion 2b and is mounted on the load-bearing portion 2b.

[0163] It can be understood that, through the cooperation between the carrying portion 2b and the bracket portion 1b, the multiple detectors 3a are installed in the detector box 1a as a whole.

[0164] Figure 11 is a schematic diagram of the connection structure between a bearing part and a bracket part in a detector device according to some exemplary embodiments of the present disclosure; Figure 12 is an exploded view of the detector device according to some exemplary embodiments of the present disclosure; Figure 13 is a schematic diagram of the structure of the first connecting plate in the detector device according to some exemplary embodiments of the present disclosure.

[0165] In some embodiments, refer to Figures 11, 12 and 13. The device further comprises a plurality of connectors 6b.

[0166] One bearing portion 2b corresponds to one connecting member 6b, and the bearing portion 2b is fixed to the bracket portion 1b via the connecting member 6b.

[0167] Specifically, the connecting member 6b includes a first connecting plate 61b.

[0168] The first connecting plate 61b includes a first plate 611b extending along a first direction D1 and a second plate 612b extending along a second direction D2. The first direction D1 is parallel to the beam-exiting surface, and the first direction D1 is perpendicular to the second direction D2. The first plate 611b is fixedly connected to the first side bracket 11b, and one side of the support portion 2b is fixedly connected to the second plate 612b.

[0169] In other embodiments, the connecting member 6b may further include a second connecting plate 62b.

[0170] The second connecting plate 62b is arranged opposite the first connecting plate 61b and includes a third plate 621b extending along the first direction D1 and a fourth plate 622b extending along the second direction D2. The third plate 621b is fixedly connected to the second side bracket 12b, and the other side of the bearing portion 2b is fixedly connected to the fourth plate 622b.

[0171] FIG14 is a schematic diagram of the connection structure between the carrier and the detector in the detector device according to some exemplary embodiments of the present disclosure; FIG15 is a schematic diagram of the structure of the carrier in the detector device according to some exemplary embodiments of the present disclosure.

[0172] In some embodiments, referring to FIG. 11 , FIG. 14 and FIG. 15 , the carrying portion 2 b includes a carrying body 21 b and a protrusion 22 b .

[0173] The carrier body 21 b is configured to allow the detector 3 a to be mounted; the protrusion 22 b is connected to an edge of the carrier body 21 b.

[0174] For example, the convex portion 22b is provided on one side of the carrier body 21b, or two convex portions 22b are provided, and the two convex portions 22b are respectively provided on opposite sides of the carrier body 21b, or the convex portions 22b are provided on the circumference of the carrier body 21b.

[0175] In one implementation, the protrusion 22b is provided on one side of the carrying body 21b.

[0176] Specifically, the main body 21b includes a carrier plate 211b, and the protrusion 22b includes a bent portion 221b. Copper posts 8b are located at the four corners of the lower surface of the carrier plate 211b. The detector 3a's circuit board and the copper posts 8b are secured to the carrier plate 211b using screws. The bent portion 221b is located on one side of the carrier plate 211b.

[0177] In other embodiments, the carrier body 21b may include shapes other than a plate, such as an irregular shell with reinforcing ribs disposed therein. The protrusion 22b may be fixedly connected by welding or by removably attaching the protrusion 22b to the carrier body 21b. It should be understood that the embodiments of the present disclosure are not limited thereto, and the carrier body 21b and the protrusion 22b may be deformed.

[0178] In some embodiments, each bearing part 2b includes at least one long hole 23b, and each second plate includes at least one mounting hole 6121b corresponding one-to-one to each long hole on the connected bearing part, and the corresponding long holes and mounting holes are connected by screws; wherein, each long hole 23b extends along the second direction, and for any bearing part 2b, when it moves in response to the force applied by the connected adjusting part, any long hole 23b thereon is at least partially connected to the corresponding mounting hole for screw connection.

[0179] Regarding the connection and fixation between the bearing portion 2b and the connecting member 6b. Two long holes 23b are provided on the side of the bearing plate 211b close to the first connecting plate 61b. The two long holes 23b are arranged at intervals along the third direction D3, and the third direction D3 is perpendicular to the first direction D1 and the second direction D2 respectively. A long hole 23b is provided on the side of the bearing plate 211b close to the second connecting plate 62b. The length of the long hole 23b is arranged in a direction parallel to the second direction D2. Correspondingly, mounting holes 6121b are provided on the second plate 612b and the fourth plate 622b corresponding to the long holes 23b on the bearing plate 211b. The long holes 23b and the mounting holes 6121b are connected by screws 7b.

[0180] When the position of the bearing portion 2b in the installation space along the second direction D2 needs to be adjusted, the long hole 23b facilitates the screws 7b to fix the bearing portion 2b at different positions.

[0181] In some embodiments, in order to facilitate the fixation of the carrying portion 2b, each carrying plate 211b is further provided with a first positioning hole 24b, and a second positioning hole 6122b is provided on the second plate 612b corresponding to the carrying plate 211b.

[0182] When installing the bearing portion 2b, the first positioning hole 24b and the second positioning hole 6122b are first aligned to pre-fix the bearing portion 2b on the connecting member 6b, so as to facilitate the subsequent fixed installation of at least one bearing portion 2b.

[0183] It should be noted that the embodiment of the present disclosure does not specifically limit the position of the first positioning hole 24b. For example, the first positioning hole 24b can be opened on the side of the carrier plate 211b corresponding to the fourth plate 622b, and the second positioning hole 6122b is opened on the fourth plate 622b.

[0184] In some embodiments, the crystal portion of each detector 3a on the support portion 2b is aligned with a positioning mark 4b on the support portion 2b on which it is mounted. The positioning mark 4b on each support portion 2b includes a notch 41b on a first side edge of the support plate 211b. When adjusting the position of the detector 3a, the notches 41b on each support plate 211b are aligned along a straight line, which is located at the beam exit plane.

[0185] In some other embodiments, the positioning mark 4b may further include: a notch 41b at the second side edge of the carrying plate 211b, where the first side of the carrying plate 211b is opposite to the second side of the carrying plate 211b.

[0186] In some further embodiments, the positioning mark 4b includes a notch 41b on the second side edge of the carrying plate 211b.

[0187] Exemplarily, the notch 41b may be triangular, rectangular or semicircular.

[0188] It should be noted that the embodiment of the present disclosure does not impose any specific limitation on the shape of the notch 41 b. In order to facilitate adjustment and alignment of the detector 3 a by using visible light in conjunction with the notch 41 b, the notch 41 b can be set to any shape.

[0189] In some embodiments, the device further comprises a plurality of adjustment parts 5b.

[0190] Each adjustment portion 5b corresponds to a support portion 2b. The adjustment portion 5b is connected to the support portion 2b. Each adjustment portion 5b is configured to apply force to the connected support portion 2b to change the position of the connected support portion 2b within the installation space so that the S positioning marks 4b are placed on the same straight line.

[0191] According to an embodiment of the present disclosure, the position of the carrying portion can be conveniently adjusted by providing an adjustment portion, thereby easily placing the S positioning marks on the same straight line, thereby improving the adjustment efficiency of multiple detectors.

[0192] It is understood that when force is applied to the support portion 2b along the second direction D2 via the adjustment portion 5b, the support plate can slide along the extension direction of the elongated hole 23b, thereby changing the position of the support plate between the first side bracket 11b and the second side bracket 12b, thereby driving the position of the detector 3a on the support plate to change within the installation space. By emitting infrared light to detect whether the multiple notches 41b are located on a straight line formed by the same infrared light, when the alignment notches 41b on the multiple support plates 211b are not aligned, the adjustment screw on one side of the bracket portion 1b is adjusted to move the support plate 211b left or right in the second direction D2, thereby fine-tuning the position of the detector 3a and aligning the multiple notches 41b. After adjustment is completed, the support plate 211b is secured to the first connecting plate 61b and the second connecting plate 62b using screws 7b.

[0193] Specifically, each adjusting portion 5b is provided with K grooves 51b, and each bending portion 221b has a snap-fitting structure snapped into any groove 51b of the connected adjusting portion 5b, where K is an integer greater than or equal to 1.

[0194] According to the embodiments of the present disclosure, the coordination of the groove and the clamping structure makes the adjustment portion simple in structure, highly reliable, and not prone to damage.

[0195] In some embodiments, the adjustment portion 5b includes a threaded rod 52a. A through-hole is formed on the side of the first side bracket 11b away from the installation space. The threaded rod 52a extends through the through-hole. A nut is fixed to the side of the first side bracket 11b away from the installation space corresponding to the through-hole. The threaded rod 52a is threadedly connected to the nut. One end of the threaded rod 52a protrudes from the side of the first side bracket 11b away from the installation space to facilitate the operator to turn the threaded rod 52a; the other end of the threaded rod 52a extends into the installation space. Each snap-fit ​​structure includes an opening 2211b on the bent portion 221b. The other end of the threaded rod 52a extends into the opening 2211b of the connected bent portion 221b. Any groove 51b formed on the threaded rod 52a allows it to be snapped into the edge of the opening 2211b of the connected bent portion 221b.

[0196] As can be understood, by turning the threaded rod 52a, the edge of the opening 2211b continuously rotates and feeds along the groove 51b on the threaded rod 52a, allowing it to engage within the grooves 51b formed by the threads at different positions on the threaded rod 52a, thereby adjusting the detector 3a on the support plate 211b to different positions within the installation space. The threaded adjustment method is more precise, allowing for fine-tuning of the position of the detector 3a within the installation space, making the installation and commissioning of the detector 3a more precise.

[0197] It should be noted that the disclosed embodiment does not specifically limit the form of the snap-fit ​​structure formed between the bent portion 221b and the groove 51b. For example, the snap-fit ​​structure may be formed by the edge of the bent portion 221b snapping into the groove 51b; or by fixing a snap ring on one side of the bent portion 221b so that the snap ring snaps into the groove 51b; or by fixing a hook on one side of the bent portion 221b so that the hook snaps into the groove 51b.

[0198] FIG. 16 is a schematic structural diagram of adjustments in a detector device according to other exemplary embodiments of the present disclosure.

[0199] In other embodiments, referring to Figure 16, the adjustment portion 5b includes a threaded section 53a and a clamping section 53b. The clamping section 53b is coaxially fixedly connected to one end of the threaded section 53a. A through-hole is provided on the side of the first side bracket 11b away from the installation space, and the threaded rod 52a passes through the through-hole. A nut is fixed on the side of the first side bracket 11b away from the installation space at a position corresponding to the through-hole, and the threaded section 53a is threadedly connected to the nut. The end of the threaded section 53a away from the clamping section 53b protrudes from the side of the first side bracket 11b away from the installation space. The clamping section 53b includes a plurality of grooves 51b provided therein, the grooves 51b are arranged concentrically with the clamping section 53b, and the plurality of grooves 51b are arranged at intervals along the axial direction of the clamping section 53b.

[0200] By twisting the threaded section 53a, different grooves 51b on the clamping section 53b are clamped with the edges of the opening 2211b on the bent portion 221b, thereby achieving the fixation of the detector 3a at different positions in the installation space.

[0201] FIG. 17 is a schematic structural diagram of adjustments in a detector device according to further exemplary embodiments of the present disclosure.

[0202] In yet other embodiments, referring to Figure 17 , the adjustment portion 5b includes an adjustment rod 54a and a spring 54b. The spring 54b is coaxially fixed to one end of the adjustment rod 54a and is located within the installation space. A through-hole is defined on the side of the first side bracket 11b facing away from the installation space, through which the threaded rod 52a extends. A nut is secured to the side of the first side bracket 11b facing away from the installation space, corresponding to the through-hole, and the adjustment rod 54a is threadedly connected to the nut. A groove 51b is formed between adjacent turns of the spring 54b, and the edge of the opening 2211b on the bent portion 221b engages within the groove 51b.

[0203] By twisting the adjusting rod 54a, different grooves 51b on the adjusting rod 54a engage with the edges of the opening 2211b of the bent portion 221b, thereby fixing the detector 3a at different positions in the installation space.

[0204] In order to facilitate understanding of the purpose of the present disclosure, the adjustment principle of the detector device of the present disclosure during installation is explained in combination with the above embodiments.

[0205] During installation, the circuit board of the detector 3a is screwed to the carrier plate 211b, with the notch 41b aligned with the crystal portion of the detector 3a. Pre-positioning is performed using the first positioning hole 24b on the carrier plate 211b and the second positioning hole 6122b on the second plate 612b. The carrier plate 211b, with the detector 3a mounted, is then pre-secured to the bracket portion 1b. Simultaneously, the adjustment bolt is passed through the opening 2211b on the bent portion 221b, with the edge of the opening 2211b engaging the groove 51b of the adjustment bolt. After the multiple detectors 3a are pre-secured to the bracket portion 1b via the carrier portion 2b, the infrared radiation emitted forms a straight line, with the infrared radiation and the beam exit plane of the radiation source coplanar. Align the infrared radiation with the first notch 41b at one end, and adjust the remaining notches 41b, using the notches 41b and the infrared radiation as the standard for adjustment. Turn the adjustment screw until all notches 41b on the carrier plate 211b are aligned with the straight line formed by the infrared radiation. Before adjusting the notch 41b to align with the infrared ray, the notch 41b has been aligned with the crystal part of the detector 3a. Therefore, when adjusting the position of the notch 41b subsequently, the notch 41b can be quickly aligned with the infrared ray, thereby improving the efficiency of the installation and debugging of the detector 3a. At the same time, the notch 41b serves as a visual positioning mark 4b, which facilitates the adjustment and positioning of multiple detectors 3a.

[0206] One or more of the above-described embodiments have the following beneficial effects: the detectors are installed in the detector box, which, in conjunction with the first sealing member, allows the detectors to operate in a sealed environment, making them impervious to water ingress and susceptibility to the effects of a humid environment, thereby ensuring normal operation of the detectors. Furthermore, the S detectors are placed within the second accommodation space defined by the shielding assembly, which is then placed within the detector box. This ensures that the detector assembly meets radiation protection, waterproofing, and moisture-proofing requirements, protecting internal components from damage and extending the life of the detectors.

[0207] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of this disclosure may be made, even if such combinations or combinations are not explicitly described in this disclosure. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of this disclosure may be made, without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0208] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A detector device, comprising: A detector box defining a first accommodation space, with a first slit provided on one side of the detector box for the ray to pass through; A shielding component located within the first accommodation space and defining a second accommodation space, with a second slit provided on one side of the shielding component for the ray to pass through, and the second slit being aligned with the first slit; S detectors located within the second accommodation space and configured to detect the rays passing through the first slit and the second slit, where S is an integer greater than or equal to 1; A first seal configured to cover the first slit, wherein the first seal allows the ray to pass through and enter the first slit; Wherein, the first seal cooperates with the detector box to form the first accommodation space into a sealed and waterproof space.

2. The detector device according to claim 1, wherein, The detector box includes: A box body defining a space for accommodating each of the detectors and an opening communicating with this space; A box cover located on one side of the opening and configured to be openably and closably connected to the box body to move relative to the box body between an open position and a closed position; A second seal placed in the connection area between the box body and the box cover, wherein the box body, the second seal, and the box cover cooperate to define the first accommodation space; When the box cover is in the closed position, the first seal, the box body, the box cover, and the second seal cooperate to form the first accommodation space into a sealed and waterproof space.

3. The detector device according to claim 2, wherein, The box body includes: A container part defining a space for accommodating each of the detectors; A box body connection part located on one side of the opening, with the first end of the box body connection part connected to the opening edge part of the container part, and the second end of the box body connection part connected to the box cover connection part of the box cover; Wherein, the connection area includes the box body connection part and the box cover connection part, the box body connection part and the box cover connection part cooperate to form a chamber, and the connection part of the first end of the box body connection part and the opening edge part of the container part is located within the chamber.

4. The detector device according to claim 3, wherein, The opening edge part of the container part is bent outward to form a bent edge, the box body connection part includes a first recess, and the recess direction of the first recess faces the inside of the box body and is perpendicular to the ray direction; The connection of the first end of the box body connection part and the opening edge part of the container part includes: The first end of the first recess is connected to the bending part of the bent edge, and the first recess, the bent edge, and the box cover connection part cooperate to form a chamber.

5. The detector device according to claim 4, wherein, The container part includes a cuboid container, The first end of the first recess and the bent edge are both parallel to the slit surface of the cuboid container, the first slit is located on the slit surface, and the first end of the first recess and the bent edge are flush with each other to jointly form the first side of the chamber.

6. The detector device according to claim 4, wherein, The box cover connection part has a recessed contour to form a second recess, When the lid is in the closed position, the first recess and the second recess are opposite to each other and have opposite recess directions, and the first recess, the bent edge and the second recess cooperate to form a chamber.

7. The detector device according to claim 6, wherein, At least a part of the projection of the second recess along the ray direction coincides with the bent edge. One end of the second recess opposite to the bent edge is spaced apart from the bent edge by a certain distance, and the first recess, the bent edge and the second recess cooperate to form a chamber with an opening.

8. The detector device according to claim 7, wherein, The second seal is located in the chamber, and at least a part of the second seal is located between the bent edge and the second recess to seal the opening of the chamber.

9. The detector device according to any one of claims 1 to 8, wherein, The shielding assembly includes: A shielding layer configured to cover at least a part of the inner surface of the detector box.

10. The detector device according to claim 9, wherein, The shielding layer includes: A first shielding layer configured to cover at least a part of the inner surface of the lid of the detector box; A second shielding layer configured to cover at least a part of the inner surface of the box body of the detector box. The first shielding layer and the second shielding layer are in contact with each other in the connection area between the box body and the lid to define the second accommodation space.

11. The detector device according to any one of claims 1 to 8, wherein, The first seal is located outside the detector box to cover the first slit. The detector device further includes: A third seal located inside the detector box and configured to cover the second slit. Wherein, the third seal allows the ray to pass through to enter each detector.

12. The detector device according to claim 11, wherein, At least one of the first seal and the third seal is configured to block the incidence of visible light.

13. The detector device according to any one of claims 2 to 8, wherein, The lid further includes: N sub-lids, wherein every two adjacent sub-lids are sealingly connected, and each sub-lid is operably connected to the box body to move relative to the box body between an open position and a closed position, and N is an integer greater than or equal to 2.

14. The detector device according to claim 13, wherein, The detector device further includes: N induction sensors corresponding to the N sub-lids one by one, wherein each induction sensor is configured to sense whether the corresponding sub-lid is in the open position or the closed position.

15. A ray irradiation device, comprising: A ray source configured to emit rays; The detector device according to any one of claims 1 to 14, configured to detect the rays.

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