A detector boom device

Abstract

The present disclosure provides a detector boom device, comprising: a cabin for accommodating a detector boom, with a detector provided on the detector boom; a slideway, one side of which is in sliding fit with a first slide rail provided on the cabin, and the other side of which is in sliding fit with a second slide rail provided on the detector boom; the first slide rail is configured to allow at least a part of the slideway to slide out of the cabin; the second slide rail is configured to allow at least a part of the second slide rail to slide out of the slideway. The detector boom device provided by the embodiments of the present disclosure, by using the cooperation of the slideway and the slide rail, can realize the extraction of the detector boom from the cabin, and utilize the space on both sides to install and maintain the detectors and other components inside the cabin, which is convenient for overhaul and maintenance; by adopting a three-section slideway device, sectional extraction is realized to ensure the stability during the sliding process; it can be independently processed, reducing the processing difficulty and cost.

Description

Technical Field

[0001] The present invention generally relates to the technical field of detectors, and particularly to a detector boom device. Background Art

[0002] At present, the commonly used means for border inspection or customs inspection is a radiation imaging detection system, which uses rays to scan vehicles, goods, etc., projects them on a detector, and forms an image for identification. To ensure the integrity of the imaging of the object to be detected, the detectors are evenly installed on the boom.

[0003] The existing detector boom is generally placed in a cabin with closed ends, and processing and maintenance windows are opened on the front and back of the cabin. When maintaining, the cover window needs to be removed, and then the internal components are maintained.

[0004] However, when maintaining such a detector boom, sufficient space needs to be left on both the front and back of the boom for the staff to operate. In the case of limited space at the equipment site or when the detector boom is in a folded state, the difficulty and working hours of maintenance are usually greatly increased. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a detector boom device that can realize the pull-out movement of the detector boom inside the cabin, facilitating inspection and maintenance.

[0006] The present disclosure provides a detector boom device, including:

[0007] A cabin for accommodating a detector boom, on which a detector is provided;

[0008] A slideway, one side of which is slidably engaged with a first slide rail provided on the cabin, and the other side of which is slidably engaged with a second slide rail provided on the detector boom;

[0009] The first slide rail is configured to allow at least a part of the slideway to slide out of the cabin;

[0010] The second slide rail is configured to allow at least a part of the second slide rail to slide out of the slideway.

[0011] Optionally, a first maintenance window is provided on one of the end faces of the cabin along the sliding direction of the slideway.

[0012] Further, a first limiting mechanism for limiting the sliding stroke of the slideway is provided on the first slide rail, and the first limiting mechanism is configured to limit the slideway from completely sliding out of the cabin through the first maintenance window.

[0013] Further, a second limiting mechanism for limiting the sliding stroke of the second slide rail is provided on the slideway, and the second limiting mechanism is configured to allow the second slide rail to slide out of the slideway from the first maintenance window portion and allow the second slide rail to completely slide out of the cabin from the first maintenance window.

[0014] Optionally, a first maintenance window is provided on one end surface of the cabin in the sliding direction of the slideway, and a second maintenance window is provided on the other end surface.

[0015] Further, a first limiting mechanism for limiting the sliding stroke of the slideway and a third limiting mechanism for limiting the sliding stroke of the slideway are provided on the first slide rail, wherein,

[0016] The first limiting mechanism is configured to allow a part of the slideway to slide out from the first maintenance window;

[0017] The third limiting mechanism is configured to allow the remaining part of the slideway to slide out from the second maintenance window.

[0018] Further, a second limiting mechanism for limiting the sliding stroke of the second slide rail and a fourth limiting mechanism for limiting the sliding stroke of the second slide rail are provided on the slideway, wherein,

[0019] The second limiting mechanism is configured to allow a part of the second slide rail to slide out from the first maintenance window;

[0020] The fourth limiting mechanism is configured to allow the remaining part of the second slide rail to slide out from the second maintenance window.

[0021] Optionally, the slideway is slidably connected to the first slide rail through balls or rollers, and / or the slideway is slidably connected to the second slide rail through balls or rollers.

[0022] Optionally, an auxiliary support cooperating with the detector arm is further provided inside the cabin.

[0023] Optionally, a nylon contact layer cooperating with the auxiliary support is provided on the detector arm.

[0024] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

[0025] A detector arm support device provided by an embodiment of the present invention adopts the cooperation of a slideway and a slide rail, which can realize the extraction of the detector arm from the cabin, and utilize the space on both sides to install and maintain the detectors and other components inside the cabin, facilitating inspection and maintenance; adopts a three-section slideway device to achieve segmented pulling, ensuring the stability during the sliding process; can be independently processed, reducing the processing difficulty and cost. Brief Description of the Drawings

[0026] Other features, objects, and advantages of the present invention will become more apparent by reading the following detailed description of non - limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 Schematic structural diagram of a detector boom device provided for an embodiment of the present invention;

[0028] Figure 2 Schematic diagram of the state when the detector boom device provided for an embodiment of the present invention is extended;

[0029] Figure 3 Schematic structural diagram of the cooperation between the slide rail and the track provided for an embodiment of the present invention;

[0030] Figure 4 Schematic diagram of the state when the slide rail provided for an embodiment of the present invention is extended;

[0031] Figure 5 Schematic structural diagram of the interior of the cabin provided for an embodiment of the present invention;

[0032] Figure 6 Schematic structural diagram of the auxiliary support provided for an embodiment of the present invention;

[0033] Figure 7 Schematic diagram of the state of a detector arrangement provided for an embodiment of the present invention;

[0034] Figure 8 Schematic diagram of the state of another detector arrangement provided for an embodiment of the present invention.

[0035] In the figures:

[0036] 1, cabin; 2, detector arm; 3, detector; 4, slideway; 5, first slide rail; 6, second slide rail; 7, first maintenance window; 8, second maintenance window; 9, first limiting mechanism; 10, second limiting mechanism; 11, third limiting mechanism;; 12, fourth limiting mechanism; 13, L - shaped mounting bracket; 15, auxiliary support; 16, nylon contact layer; 17, first groove; 18, second groove; 201, central detector; 202, side detector. Detailed Embodiments

[0037] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the related invention and not for limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0038] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] Please refer to Figure 1-2 , a detector boom device, comprising:

[0040] A cabin body 1 for accommodating a detector boom 2, and a detector 3 is arranged on the detector boom 2;

[0041] A slideway 4, one side of the slideway 4 is slidably matched with a first slide rail 5 arranged on the cabin body 1, and the other side of the slideway 4 is slidably matched with a second slide rail 6 arranged on the detector boom 2;

[0042] The first slide rail 5 is configured to allow at least a part of the slideway 4 to slide out of the cabin body 1;

[0043] The second slide rail 6 is configured to allow at least a part of the second slide rail 6 to slide out of the slideway 4.

[0044] In an embodiment of the detector boom device provided in the present disclosure, a three-section telescopic slide rail is adopted. A part of the slideway 4 can slide out of the cabin body 1, and the second slide rail 6 (and thus the detector boom 2) also slides out of the slideway 4 by a part. By the way of partial sliding out, the stability of the sliding-out state is ensured, as Figure 3-4 shown; the detector boom 2 can slide out completely relative to the cabin body 1 to facilitate the maintenance and repair of the detector on the detector boom 2.

[0045] When specifically setting, the cabin body 1 can be an integral tubular structure or a spliced tubular structure. The cross-sectional shape of the cabin body 1 can be rectangular, circular, triangular or other shapes; the cabin body 1 can be fixed on an installation surface of, for example, a radiation imaging detection system, or can be embedded in its installation surface. The present disclosure does not specifically limit the installation method of the cabin body 1. In application, the cabin body 1 can be a sealed structure. According to different application scenarios, the cabin body 1 can also be provided with structures such as gaps to facilitate the detector 3 to receive radiation beams, light, etc. from the radiation source to pass through.

[0046] In the embodiment of the present disclosure, multiple detectors 3 can be arranged on the detector boom 2, for example, more than two. Among them, the detector 3 can be a photosensitive film, a scintillator, a semiconductor diode array, etc., and the radiation source can be X / γ rays, neutrons, protons, electrons, heavy ions, muons, etc. The structures and working principles of the detector 3 and the radiation source can refer to existing detectors and radiation sources, and will not be described in detail here. Different selections can be made according to different devices or application scenarios, and the present disclosure does not limit this.

[0047] In addition, there are no restrictions on the installation position and the number of detectors 3 on the detector arm 2. In the embodiments of the present disclosure, an exemplary arrangement of the detectors 3 on the detector arm 2 is shown. In application, other arrangements can also be adopted. The shape and structure of the detector arm 2 can be adjusted according to different application scenarios and installation positions.

[0048] In the embodiments of the present disclosure, as Figure 1 shown, an exemplary detector arm 2 with a U-shaped structure is illustrated. The U-shaped structure includes an inner surface on the left side and an outer surface on the right side. The inner surface is used to fix the detector 3, and the outer surface is used to fix the second slide rail 6. On the inner surface, the detector 3 can be adjusted according to the detection direction. For example, taking the direction in which the length of the detector arm 2 extends as the X direction, the height direction of the axis of the detector 3 as the Y direction, and the fixing direction of the second slide rail 6 as the Z direction, as Figure 1 shown. It should be noted that in other embodiments, the X / Y / Z three directions can be interchanged.

[0049] Among them, when the detection direction of the detector 3 is along the Y direction, the installation position of the detector 3 can be within the XY plane and rotate around the Z axis. When fixing, it can be fixed on the inner surface through the L-shaped mounting bracket 13. One side of the L-shaped mounting bracket 13 is used to fix the detector 3, and the other side is used to fix to the detector arm 2. By adjusting the fixing direction of the L-shaped mounting bracket 13, the position of the detector 3 on the detector arm 2 with a U-shaped structure can be adjusted, and thus the direction and angle of the detector 3 facing the radiation source can be adjusted. As Figure 1 、 3 shown, on the outer surface of the detector arm 2 with a U-shaped structure, the upper end is used to set the second slide rail 6, and the lower end contacts with the auxiliary support 15 provided on the cabin body 1. By providing a plurality of auxiliary supports 15, the balanced sliding of the detector arm 2 can be maintained during the pulling process. As Figure 1 shown, the slideway 4 can be of an I-shaped type, including a first accommodation area and a second accommodation area located on both sides of the I-shaped. The first accommodation area is used to accommodate the first slide rail 5, and the second accommodation area is used to accommodate the second slide rail 6.

[0050] In the embodiments of the present disclosure, the slideway 4 and the first slide rail 5 can be slidably connected through balls, and / or the slideway 4 and the second slide rail 6 can be slidably connected through balls. On the slideway 4, first grooves 17 for accommodating balls are respectively provided in cooperation with the first slide rail 5 (second slide rail 6). Second grooves 18 for accommodating balls are provided on the first slide rail 5 (second slide rail 6). The balls are placed in the space formed by the first grooves 17 and the second grooves 18, and the smooth and stable sliding between the slideway 4 and the first slide rail 5 and the second slide rail 6 is achieved through the balls.

[0051] Specifically, the slideway 4 and the first slide rail 5 are in sliding contact at the first surface and the second surface in the first accommodation area. Among them, first grooves 17 for accommodating the balls are provided on the first surface and the second surface. The upper surface of the first slide rail 5 is in sliding contact with the first surface, and the lower surface of the first slide rail 5 is in sliding contact with the second surface. Second grooves 18 that cooperate with the balls are also provided on the upper surface and the lower surface of the first slide rail 5.

[0052] For example, in the case where the balls are embedded in the first grooves 17 on the first surface and the second grooves 18 on the upper surface of the first slide rail 5, when the first slide rail 5 and the slideway 4 slide relative to each other, the balls roll in the first grooves 17 and the second grooves 18, which can effectively reduce the sliding friction between the first slide rail 5 and the slideway 4.

[0053] In other embodiments of the present disclosure, for example, the relative sliding between the first slide rail 5 and the slideway 4 can also be achieved by means of rollers. The first grooves 17 and the second grooves 18 on the upper surface of the first slide rail 5 and the first surface of the slideway 4 are adapted to the shape of the rollers. By the rollers rolling in the first grooves and the second grooves, the sliding friction between the slide rail and the slideway can be effectively reduced. It should be noted that when setting the rollers, the axial direction of the rollers is perpendicular to the direction of relative sliding between the first slide rail 5 and the slideway 4.

[0054] In addition, the slideway 4 and the second slide rail 6 are in sliding contact at the first surface and the second surface in the second accommodation area. Among them, first grooves 17 for accommodating the balls are also provided on the first surface and the second surface. The upper surface of the second slide rail 6 is in sliding contact with the first surface, and the lower surface of the second slide rail 6 is in sliding contact with the second surface. Second grooves 18 that cooperate with the balls are also provided on the upper surface and the lower surface of the second slide rail 6.

[0055] For example, in the case where the balls are embedded in the first grooves 17 on the first surface and the second grooves 18 on the upper surface of the second slide rail 6, when the second slide rail 6 and the slideway 4 slide relative to each other, the balls roll in the first grooves 17 and the second grooves 18, which can effectively reduce the sliding friction between the second slide rail 6 and the slideway 4.

[0056] In other embodiments of the present disclosure, the relative sliding between the second slide rail 6 and the slideway 4 can also be achieved by means of rollers. The first grooves 17 and the second grooves 18 on the upper surface of the second slide rail 6 and the first surface of the slideway 4 are adapted to the shape of the rollers. By the rollers rolling in the first grooves 17 and the second grooves 18, the sliding friction between the slide rail and the slideway can be effectively reduced. It should be noted that when setting the rollers, the axial direction of the rollers is perpendicular to the direction of relative sliding between the second slide rail 6 and the slideway 4.

[0057] Furthermore, the situation where the balls and rollers are embedded in the first grooves 17 on the second surface of the first accommodation area (second accommodation area) and the second grooves 18 on the lower surface of the first slide rail 5 (second slide rail 6) is the same as the above situation, and will not be elaborated here.

[0058] In an embodiment of the present disclosure, a first maintenance window 7 is provided on one end surface of the cabin body 1 along the sliding direction of the slideway 4. The end plate of the first maintenance window 7 is detachable from the cabin body 1 and is equipped with an O-ring seal, thereby improving the sealing performance of the equipment.

[0059] Among them, a first limiting mechanism 9 for limiting the sliding stroke of the slideway 4 is provided on the first slide rail 5, and the first limiting mechanism 9 is configured to limit the slideway 4 from completely sliding out of the cabin body 1 from the first maintenance window 7.

[0060] A second limiting mechanism 10 for limiting the sliding stroke of the second slide rail 6 is provided on the slideway 4, and the second limiting mechanism 10 is configured to allow the second slide rail 6 to partially slide out of the slideway 4 from the first maintenance window 7 and allow the second slide rail 6 to completely slide out of the cabin body 1 from the first maintenance window 7.

[0061] It should be noted that in this embodiment, the cabin body 1 is provided with a first maintenance window 7 on one end surface, the slideway 4 can partially slide out of the first maintenance window 7, and the second slide rail 6 can drive the detector arm 2 to completely extend out of the first maintenance window 7. The first limiting mechanism 9 can limit the sliding distance of the slideway 4 relative to the first maintenance window 7. For example, the first limiting mechanism 9 allows at most 1 / 3 or 1 / 2 of the slideway 4 to slide out of the first maintenance window 7. The second limiting mechanism 10 can limit the sliding distance of the second slide rail 6 relative to the slideway 4. For example, the second limiting mechanism 10 allows at most 2 / 3 or 1 / 2 of the second slide rail 6 to slide out of the slideway 4. In this case, the second slide rail 6 can completely slide out of the first maintenance window 7.

[0062] In the embodiment of the present disclosure, the sliding stroke of the detector arm completely sliding out of the cabin body 1 is decomposed into the slideway 4 partially sliding out of the first slide rail 5 and the second slide rail 6 partially sliding out of the slideway 4. Through the three-stage sliding method, the stability of the part of the detector arm extending out of the cabin body 1 is achieved, and the strength of the detector arm support device is improved through the segmented support method.

[0063] The present disclosure does not limit the implementation manners of the first limiting mechanism 9 and the second limiting mechanism 10. For example, it can be achieved by limit switches, mechanical structural members, etc. In some embodiments, a plurality of limiting mechanisms can also be provided along the sliding length directions of the first slide rail 5 and the slideway 4 to achieve segmented control of the sliding distance.

[0064] In an embodiment of the present disclosure, a first maintenance window 7 is provided on one end face of the cabin body 1 in the sliding direction of the slideway 4, and a second maintenance window 8 is provided on the other end face. The end plate of the second maintenance window 8 is detachable from the cabin body 1 and is equipped with an O-ring seal, thereby improving the sealing performance of the equipment.

[0065] Further, when the detector arm 2 can be pushed out bidirectionally from the first maintenance window 7 and the second maintenance window 8, a first limiting mechanism 9 for limiting the sliding stroke of the slideway 4 and a third limiting mechanism 11 for limiting the sliding stroke of the slideway 4 are provided on the first slide rail 5. Among them, the first limiting mechanism 9 is configured to allow a part of the slideway 4 to slide out from the first maintenance window 7; the third limiting mechanism 11 is configured to allow the remaining part of the slideway 4 to slide out from the second maintenance window 8.

[0066] A second limiting mechanism 10 for limiting the sliding stroke of the second slide rail 6 and a fourth limiting mechanism 12 for limiting the sliding stroke of the second slide rail 6 are provided on the slideway 4. Among them, the second limiting mechanism 10 is configured to allow a part of the second slide rail 6 to slide out from the first maintenance window 7; the fourth limiting mechanism 12 is configured to allow the remaining part of the second slide rail 6 to slide out from the second maintenance window 8.

[0067] It should be noted that in this embodiment, the slideway 4 can be pushed out of the maintenance window from two directions relative to the first slide rail 5. When specifically setting, it can be set to completely push out the detector arm 2 from one direction through the second slide rail 6. During the sliding process, the slideway 4 can partially slide out of the first maintenance window 7 (or the second maintenance window 8), and the second slide rail 6 drives the detector arm 2 to completely extend out of the first maintenance window 7 (or the second maintenance window 8). When pushing out from the first maintenance window 7, the first limiting mechanism 9 can limit the sliding distance of the slideway 4 relative to the first maintenance window 7, and the second limiting mechanism 10 can limit the sliding distance of the second slide rail 6 relative to the slideway 4. Or when pushing out from the second maintenance window 8, the third limiting mechanism 11 can limit the sliding distance of the slideway 4 relative to the second maintenance window 8, and the fourth limiting mechanism 12 can limit the sliding distance of the second slide rail 6 relative to the slideway 4.

[0068] In another embodiment of the present disclosure, a part of the detector arm 2 can also be pushed out of the first maintenance window 7 through the second slide rail 6 in one direction, and the remaining part that is not pushed out of the first maintenance window 7 can be pushed out of the second maintenance window 8 in another direction. For example, 1 / 2 of the detector arm 2 can slide out of the first maintenance window 7, and the remaining 1 / 2 slides out of the second maintenance window 8. In application, the first limiting mechanism 9 allows at most 1 / 4 of the slideway 4 to slide out of the first maintenance window 7, and the second limiting mechanism 10 allows at most 1 / 4 of the second slide rail 6 to slide out of the slideway 4. In this case, 1 / 2 of the detector arm 2 close to the first maintenance window 7 can slide out of the first maintenance window 7.

[0069] It should be noted that in the embodiments of the present disclosure, when a part of the detector arm 2 is pushed out of the first maintenance window 7 through the second slide rail 6 in one direction, and the remaining part that is not pushed out of the first maintenance window 7 can be pushed out of the second maintenance window 8 in another direction, there is no limitation on the ratio or distance of the "part" and the "remaining part" therein, only to illustrate that the entire length of the detector arm cannot be completely pushed out in one direction. In an application scenario with space constraints, by pushing out the detector arm in two directions, space can be effectively saved and operation is facilitated.

[0070] Correspondingly, the first limiting mechanism 9 and the third limiting mechanism 11 can limit the sliding distance of the slideway 4 relative to the maintenance window, and the second limiting mechanism 10 and the fourth limiting mechanism 12 can limit the sliding distance of the second slide rail 6 relative to the slideway 4. Moreover, the second limiting mechanism 10 and the fourth limiting mechanism 12 can also be used to limit the sliding distance of the second slide rail 6 relative to the maintenance window. The telescopic slide rail in the present disclosure can be changed from a three-section ball-type slide rail to other forms of slide rails, and the present disclosure does not limit this.

[0071] In addition, as Figure 1 、 Figure 5 and Figure 6 , an auxiliary support 15 cooperating with the detector arm 2 is further provided inside the cabin body 1. A nylon contact layer 16 cooperating with the auxiliary support 15 is provided on the detector arm 2.

[0072] In specific implementation, by contacting the nylon contact layer 16 with the auxiliary support 15 made of, for example, a metal material, the sliding direction of the slideway 4 can be guided by the auxiliary support 15 during the sliding-out process. At the same time, the friction can be reduced during the sliding process to ensure smooth sliding. For example, two auxiliary supports 15 are arranged below the first slide rail 5 to ensure the stability and repeated positioning accuracy of the detector arm during the sliding-out process. The repeated positioning accuracy can also be further achieved by other structures such as additional positioning pins. It can also be achieved by arranging bolts or positioning holes cooperating with the bolts on the auxiliary support 15. It should be noted that in the embodiments of the present disclosure, the number of auxiliary supports can be two or multiple. The nylon contact layer on the detector arm is strip-shaped along the pulling direction of the detector arm, which can ensure smooth sliding during the entire sliding process.

[0073] In the embodiments of the present disclosure, a plurality of detectors 3 are arranged on the detector arm 2, and the detectors are arranged in different directions on the detector arm. In the embodiments of the present disclosure, the detectors on the detector arm are arranged in a symmetric manner on both sides, but there are some differences in the symmetric manners for different numbers of detectors. For example, when the number of detectors is an even number, the number of corresponding central detectors 201 is two, and the two detectors are symmetric about the center line of the detector arm (the center line in the length direction); for example, when the number of detectors is an odd number, the number of corresponding central detectors 201 is one, and the setting of the central detector 201 is symmetric about the center line of the detector arm (the center line in the length direction).

[0074] It should be noted that for the setting method of an even number of detectors, there are multiple situations. In some embodiments, the number of central detectors 201 can correspond to two detectors, and the others are used as side detectors 202 and set in the manner of the side detectors 202. In some other embodiments, the number of central detectors 201 can be set to zero; all the detectors are used as side detectors 202 and set in the manner of the side detectors 202.

[0075] Generally speaking, for the settings of an odd number of detectors and an even number of detectors, the other variation rules except the symmetric manner of the central detector 201 are the same. In the embodiments of the present disclosure, an odd number of detectors are used for exemplary illustration.

[0076] The plurality of detectors 3 include a central detector 201 located on the center line of the detector arm and a plurality of side detectors 202 located on both sides of the central detector 201, and the axes of the side detectors 202 are arranged at an angle with the center line of the detector arm.

[0077] In the embodiments of the present disclosure, there is no limitation on the size of the angle between the side detector 202 and the center line of the detector arm. For example, in the direction from the center line to both sides, the angles between the side detector 202 and the center line are arranged in an arithmetic progression. It should be noted that in other embodiments, according to the different numbers of detectors, the angles between the detectors can be different. In the present disclosure, the case where the angles between the detectors are the same is used for exemplary illustration.

[0078] Exemplarily, the central detector 201 is arranged along the center line of the detector arm. The angle between the axis of the central detector 201 and the axis of the adjacent side detector 202 is θ, and the angle between the side detector 202 and the center line is θ n = 90° - nθ; where n is the label of the side detector 202, that is, the side detector 202 is the nth detector from the central detector 201.

[0079] That is, in the direction from the central detector 201 to both sides, the inclination angle of the first side detector 202 is θ 1 = 90° - θ; the inclination angle of the second side detector 202 is θ 2 = 90° - 2θ; and so on.

[0080] In an embodiment of the present disclosure, as Figure 7 shown, the central extension lines of the detectors converge at the same point on the center line of the detector arm. This point is, for example, the target point of the radiation source. In another embodiment of the present disclosure, as Figure 8 shown, the central extension lines of the detectors converge at different points on the center line of the detector arm.

[0081] It should be noted that due to different application devices and application scenarios, the number of detectors is different. The present disclosure does not specifically limit the number of detectors, nor does it specifically limit the width of the detectors and the spacing between the detectors. Therefore, due to the differences in the width of the detectors, the spacing, and the angle between the center axes, the positions where the extension lines of the axes of different detectors converge on the detector arm are different.

[0082] Through the arrangement method of the detectors on the detector arm provided in the embodiments of the present disclosure, the layout space can be saved and the detection range of the detectors can be expanded.

[0083] It should be noted that in the drawings of the present disclosure, for the sake of clarity of illustration, only several detectors are schematically shown. It should be known that in an actual product, the number of detectors on a product can usually reach hundreds or thousands; in addition, for the sake of clarity of illustration, the angles shown in the drawings are often inconsistent with the angles they represent. It should be known that the drawings are only schematic.

[0084] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0085] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0086] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "arranged" as used herein may mean that one component is directly attached to another component or that one component is attached to another component through an intermediate member. Features described in one embodiment herein may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0087] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present invention within the scope of the described embodiments. Those skilled in the art can understand that more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope claimed by the present invention.

Claims

1. A detector boom device, characterized in that, comprising: a cabin for accommodating a detector boom, with a detector provided on the detector boom; a first maintenance window is provided on one end face of the cabin in the sliding direction of the slideway, and a second maintenance window is provided on the other end face; a slideway, one side of the slideway is slidably engaged with a first slide rail provided on the cabin, and the other side of the slideway is slidably engaged with a second slide rail provided on the detector boom; the first slide rail is configured to allow at least a part of the slideway to slide out of the cabin; the second slide rail is configured to allow at least a part of the second slide rail to slide out of the slideway; a first limit mechanism for restricting the sliding stroke of the slideway and a third limit mechanism for restricting the sliding stroke of the slideway are provided on the first slide rail, wherein the first limit mechanism is configured to allow a part of the slideway to slide out from the first maintenance window; the third limit mechanism is configured to allow the remaining part of the slideway to slide out from the second maintenance window; a second limit mechanism for restricting the sliding stroke of the second slide rail and a fourth limit mechanism for restricting the sliding stroke of the second slide rail are provided on the slideway, wherein the second limit mechanism is configured to allow a part of the second slide rail to slide out from the first maintenance window; the fourth limit mechanism is configured to allow the remaining part of the second slide rail to slide out from the second maintenance window.

2. The detector boom device according to claim 1, characterized in that, a first maintenance window is provided on one of the end faces of the cabin in the sliding direction of the slideway.

3. The detector boom device according to claim 2, characterized in that, a first limit mechanism for restricting the sliding stroke of the slideway is provided on the first slide rail, and the first limit mechanism is configured to restrict the slideway from completely sliding out of the cabin from the first maintenance window.

4. The detector boom device according to claim 2, characterized in that, a second limit mechanism for restricting the sliding stroke of the second slide rail is provided on the slideway, and the second limit mechanism is configured to allow a part of the second slide rail to slide out of the slideway from the first maintenance window and allow the second slide rail to completely slide out of the cabin from the first maintenance window.

5. The detector boom device according to claim 1, characterized in that, the slideway and the first slide rail are slidably connected by balls or rollers, and / or, the slideway and the second slide rail are slidably connected by balls or rollers.

6. The detector boom device according to claim 1, characterized in that, an auxiliary support for cooperating with the detector boom is further provided inside the cabin.

7. The detector boom device according to claim 6, characterized in that, a nylon contact layer for cooperating with the auxiliary support is provided on the detector boom.

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