Detector arm structure, and human body scanning device

Abstract

A detector arm structure, comprising: a cage-type source fixing portion (100); an arm supporting portion (200), which extends in a first direction; and a distal framework portion (300), which extends in a second direction and has a plurality of through holes (301). The arm supporting portion (200) is connected between the cage-type source fixing portion (100) and the distal framework portion (300). Further provided is a human body scanning device. The cage-type source fixing portion (100) is provided with a sliding block, and slides along a guide rail on a supporting column (400) by means of the sliding block to enable the cage-type source fixing portion (100) to move along the supporting column (400). The cage-type source fixing portion (100) is provided with a three-sided supporting holder. The three-surface supporting holder comprises a bottom plate (101), a side plate (102) and a back plate (103) which are connected to each other, the side plate (102) and the back plate (103) being both perpendicular to the plane where the bottom plate (101) is located and forming a right angle.

Description

Detector arm structure and human body scanning device

[0001] This application claims priority to Chinese Patent Application No. 202410417831.2, filed on April 8, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of detection. In particular, it relates to a detector arm structure and a human body scanning device. BACKGROUND

[0003] The main implementation of the related human body security inspection system based on ray perspective imaging is that the X-ray and the detector are fixed, and the transmission device drives the person to be inspected to pass through the X-ray beam to complete the scanning. The transmission mechanism of the person to be inspected mainly includes belt transmission and guide rail pedal transmission.

[0004] Another is that the person to be inspected stands still, and the ray source and the detector move relative to the human body to complete the scanning. The imaging mechanism mainly moves in the ways of screw transmission, belt transmission, steel belt or steel wire rope ring-shaped winding C-arm, etc.

[0005] In the related system, most of the C-arms are welded by section bars, which are relatively heavy. Therefore, the entire C-arm frame often needs to be driven on both sides, and the hollow structure of the steel pipe has poor torsional resistance, which easily causes the detector to shake and results in more horizontal lines on the image. SUMMARY

[0006] According to an aspect of the present disclosure, a detector arm structure is provided, comprising: a cage type source fixing part defining an accommodation space; an arm support part extending along a first direction and having a honeycomb structure; and a distal end framework part extending along a second direction and having a plurality of perforations, the second direction being at an angle to the first direction; wherein the arm support part is connected between the cage type source fixing part and the distal end framework part.

[0007] According to an embodiment of the present disclosure, the cage type source fixing part has a three-sided support seat, which includes a bottom plate, a side plate and a back plate connected to each other, and the side plate and the back plate are perpendicular to the plane where the bottom plate is located and form a right angle.

[0008] According to an embodiment of the present disclosure, the cage type source fixing part has a front plate, which is fixedly connected to the three-sided support seat by being fixed to the corresponding side end face of the side plate and the bottom plate of the three-sided support seat, so as to face the back plate of the three-sided support seat.

[0009] According to one embodiment of the present disclosure, the cage source fixing portion has a cover plate, an edge of a first surface of the cover plate has a groove, so that the cover plate is pressed and buckled at the end of the three-side support seat and the end fixedly connected to the three-side support seat and the front plate.

[0010] According to one embodiment of the present disclosure, the three-side support seat is integrally formed, and the back plate has a plurality of weight-reducing openings; and / or the front plate has a plurality of weight-reducing openings; and / or the cover plate has a thickness, and a second surface of the cover plate opposite to the first surface has a recess or the cover plate is provided with a through slot penetrating through the thickness of the cover plate.

[0011] According to one embodiment of the present disclosure, wherein the side plate of the three-side support seat has a side plate notch, the first end of the arm support portion can be buckled into the side plate notch so as to fixedly connect the side plate of the cage source fixing portion.

[0012] According to one embodiment of the present disclosure, the arm support portion comprises an inner side plate and an outer side plate, and a plurality of connecting plates connecting the inner side plate and the outer side plate are arranged between the inner side plate and the outer side plate.

[0013] According to one embodiment of the present disclosure, the arm support portion further comprises: a top plate connecting the top ends of the inner side plate and the outer side plate; and / or a reinforcing plate connected between the plurality of connecting plates.

[0014] According to one embodiment of the present disclosure, the second end of the arm support portion has a sleeve notch, the first end of the distal end framework portion can be inserted into the sleeve notch so as to fixedly connect the distal end framework portion to the arm support portion.

[0015] According to one embodiment of the present disclosure, the plurality of through holes gradually increase in size in a direction away from the first end of the distal end framework portion, so that the center of gravity of the distal end framework portion deviates from the geometric center and is close to the first end.

[0016] According to one embodiment of the present disclosure, the distal end framework portion comprises a shielding plate, and the shielding plate is inserted into the distal end framework portion.

[0017] According to one embodiment of the present disclosure, the cage source fixing portion, the arm support portion and the distal end framework portion are connected to form an I shape or an L shape or a transversely arranged “∩” shape.

[0018] According to another aspect of the present disclosure, there is provided a human body scanning apparatus, comprising: a support column; and a detector arm structure comprising: a cage source fixing portion for accommodating and fixing a radiation source of the human body scanning apparatus; an arm support portion extending in a first direction and having a honeycomb structure; and a distal end skeleton portion for mounting a detector of the human body scanning apparatus, the distal end skeleton portion extending in a second direction and having a plurality of perforations, the second direction being at an angle to the first direction; wherein the detector arm structure is movably connected to the support column by the cage source fixing portion, so that the detector arm structure is movable up and down along the support column.

[0019] It is to be understood that the details set forth herein do not limit the key or important features of the present disclosure, and are intended only to illustrate the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a better understanding of the present scheme, and do not constitute limitations on the present disclosure, in which:

[0021] FIG. 1 illustrates a perspective view of a detector arm structure according to an embodiment of the present disclosure;

[0022] FIG. 2 illustrates a perspective view of a cage source fixing portion according to an embodiment of the present disclosure;

[0023] FIG. 3 illustrates an exploded view of the cage source fixing portion according to an embodiment of the present disclosure;

[0024] FIG. 4 illustrates a perspective view of an arm support portion and a distal end skeleton portion according to an embodiment of the present disclosure;

[0025] FIG. 5 illustrates a perspective view of the arm support portion according to an embodiment of the present disclosure;

[0026] FIG. 6 illustrates a perspective view of the arm support portion according to another embodiment of the present disclosure;

[0027] FIG. 7 illustrates a perspective view of the distal end skeleton portion according to an embodiment of the present disclosure;

[0028] FIG. 8 illustrates a perspective view of a shielding plate according to an embodiment of the present disclosure;

[0029] FIG. 9 illustrates a perspective view of an I-shaped detector array mounted on the distal end skeleton portion according to an embodiment of the present disclosure;

[0030] FIG. 10 illustrates a perspective view of the I-shaped detector array mounted on the distal end skeleton portion and a detector array mounted in the arm support portion according to an embodiment of the present disclosure; and

[0031] FIG. 11 shows a perspective view of a human body scanning device according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the objectives, technical solutions and merits of the present disclosure, the embodiments of the present disclosure will be described in detail below with reference to the drawings. It should be understood that the following description of the embodiments is intended to explain and illustrate the general inventive concept of the present disclosure, and should not be construed as limiting the present disclosure. In the description and drawings, the same or similar reference signs refer to the same or similar components or members. For the sake of clarity, the drawings are not necessarily drawn to scale, and some well-known components and structures can be omitted from the drawings.

[0033] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. The term "one" does not exclude a plurality. The terms "comprising" or "including" or similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connected" or "connected" or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", "top", or "bottom" and the like are used only to indicate relative positional relationships, which can change when the absolute positions of the described objects change. When an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be "directly" on or under the other element, or there can be an intermediate element.

[0034] The present disclosure aims to provide a detector arm structure and a human body scanning device comprising the same, which can minimize the load weight by assembling a cage type weight reduction structure in a split manner, and ensure that the detector arm structure has good torsional resistance, thereby preventing the detector portion from shaking.

[0035] According to the general inventive concept of the present disclosure, a detector arm structure comprises: a cage type source fixing portion defining an accommodation space; an arm support portion extending in a first direction and having a honeycomb structure; and a distal end skeleton portion extending in a second direction and having a plurality of perforations, the second direction being at an angle to the first direction; wherein the arm support portion is connected between the cage type source fixing portion and the distal end skeleton portion.

[0036] FIG. 1 shows a perspective view of a detector arm support structure according to one embodiment of the present disclosure; FIG. 2 shows a perspective view of a cage source fixing portion according to one embodiment of the present disclosure; FIG. 3 shows an exploded view of the cage source fixing portion according to one embodiment of the present disclosure; FIG. 4 shows a perspective view of an arm support portion and a distal end skeleton portion according to one embodiment of the present disclosure; FIG. 5 shows a perspective view of the arm support portion according to one embodiment of the present disclosure; FIG. 6 shows a perspective view of the arm support portion according to another embodiment of the present disclosure; FIG. 7 shows a perspective view of the distal end skeleton portion according to one embodiment of the present disclosure; FIG. 8 shows a perspective view of a shielding plate according to one embodiment of the present disclosure; FIG. 9 shows a perspective view of a detector array arranged in an I shape on the distal end skeleton portion according to one embodiment of the present disclosure; FIG. 10 shows a perspective view of the detector array arranged in an I shape on the distal end skeleton portion and a detector array installed in the arm support portion according to one embodiment of the present disclosure; and FIG. 11 shows a perspective view of a human body scanning apparatus according to one embodiment of the present disclosure.

[0037] In one exemplary embodiment of the present disclosure, as shown in FIG. 1, a detector arm support structure includes a cage source fixing portion 100 defining an accommodation space, an arm support portion 200 extending in a first direction and having a honeycomb structure, and a distal end skeleton portion 300 extending in a second direction and having a plurality of perforations 301, the second direction being at an angle to the first direction, wherein the arm support portion 200 is connected between the cage source fixing portion 100 and the distal end skeleton portion 300. The accommodation space defined by the cage source fixing portion 100 is used to accommodate and fix a radiation source of a human body scanning apparatus. In one embodiment, the second direction is at an angle of 90° to the first direction. In one embodiment, the cage source fixing portion 100 is provided with a sliding block and moves along a support column 400 by sliding along a guide rail on the support column 400. In the configuration of the present disclosure, the cage source fixing portion 100 can achieve the effect of reducing the load weight of the detector arm support structure, and the heat dissipation effect of the cage source fixing portion is also better; and the arm support portion 200 having a honeycomb structure can ensure the stability of the radiation source during high-speed movement.

[0038] In one embodiment, as shown in FIG. 2 and FIG. 3, the cage source fixing part 100 has a three-sided support seat, which includes a bottom plate 101, a side plate 102 and a back plate 103 connected to each other, and the side plate 102 and the back plate 103 are perpendicular to the plane on which the bottom plate 101 is located and form a right angle. In one embodiment, the thickness of the bottom plate 101 is greater than the thickness of the side plate 102 and the back plate 103 to ensure the support strength of the cage source fixing part 100. In one embodiment, the bottom plate 101 can be a double-layer plate structure with an internal space, thereby having a reduced weight while having a suitable strength.

[0039] In one embodiment, as shown in FIG. 2 and FIG. 3, the cage source fixing part 100 has a front plate 104, which is fixedly connected to the three-sided support seat by being fixed to the corresponding side end surface of the side plate 102 and the bottom plate 101 of the three-sided support seat, so as to face the back plate 103 of the three-sided support seat. Further, as shown in FIG. 2 and FIG. 3, no corresponding side plate is arranged on the side of the cage source fixing part 100 opposite to the side plate 102, and instead, the side of the cage source fixing part 100 opposite to the side plate 102 is open. This arrangement is beneficial for further reducing the overall weight of the cage source fixing part 100 while ensuring the load-bearing strength of the cage source fixing part 100, and on the other hand, the always open side of the cage source fixing part 100 is also convenient for subsequent maintenance and emergency repair in case of emergency.

[0040] In one embodiment, as shown in FIG. 3, the cage source fixing part 100 has a cover plate 105, the edge of the first surface of the cover plate 105 has a groove, so that the cover plate 105 is pressed and buckled at the end of the three-sided support seat and the end of the front plate 104 fixedly connected to the three-sided support seat. The first surface of the cover plate 105 is the surface of the cover plate 105 facing the three-sided support seat, and in FIG. 3, the first surface is the bottom surface of the cover plate. The groove of the cover plate 105 is beneficial for the cover plate 105 to be more firmly engaged with the three-sided support seat and the front plate.

[0041] In one embodiment, as shown in FIGS. 2 and 3, the three-sided support seat is integrally formed, and the back plate 103 has a plurality of weight-reducing openings; and / or the front plate 104 has a plurality of weight-reducing openings; and / or the cover plate 105 has a thickness, and a second surface of the cover plate 105 opposite to the first surface has a recess. In another embodiment, the cover plate 105 is provided with a through slot 1051 penetrating through the thickness of the cover plate 105. In one embodiment, the three-sided support seat is integrally formed as a casted piece or as a single-piece product by welding, which not only ensures that the three-sided support seat has high structural strength, structural rigidity and supporting capacity, but also enables the three-sided support seat to be integrally formed as a single-piece product, which can greatly improve the assembly efficiency and reduce the assembly difficulty of the cage source fixing portion 100, because the assembly of the cage source fixing portion 100 is completed simply by fixing the front plate 104 to the corresponding side end surfaces of the side plate 102 and the bottom plate 101 of the three-sided support seat via fasteners. In one embodiment, the weight-reducing openings are square openings. As shown in FIGS. 2 and 3, the back plate 103 and the front plate 104 are each provided with 4 weight-reducing openings, and the front plate 104 is further provided with a radiation outlet 1041 for fixing a beam guiding box at the central position of the front plate 104. Specifically, the 4 weight-reducing openings on the front plate 104 are respectively formed at four corners of the front plate 104 and are aligned in pairs, and the 4 weight-reducing openings on the back plate 103 are arranged in a "cross" shape and are also aligned in pairs. The second surface of the cover plate 105 opposite to the first surface has a recess or the cover plate 105 is provided with a through slot 1051 penetrating through the thickness of the cover plate 105, which can further reduce the weight of the cage source fixing portion 100, and the recess can ensure the structural strength of the cage source fixing portion 100 while reducing the weight. In one embodiment, the cross-sectional shape of the recess or the through slot 1051 is "L" shaped. Further, in order to ensure the structural rigidity of the cage source fixing portion 100, the cover plate 105 is fixed on the three-sided support seat and the front plate 104 by screws or other fasteners.

[0042] In one embodiment, as shown in FIG. 3, the side plate 102 of the three-sided support seat has a side plate bayonet 1021, and the first end of the arm support portion 200 can be buckled to the side plate bayonet 1021 so that the arm support portion 200 is fixedly connected to the side of the cage source fixing portion 100. In one embodiment, the side plate bayonet 1021 is a square hole. In the embodiment shown in FIGS. 5 and 6, the first end of the arm support portion 200 is provided with a rectangular protrusion 2001 adapted to the side plate bayonet 1021, and the rectangular protrusion surrounds a slot penetrating through the end surface of the first end of the arm support portion 200, so as to reduce the weight of the arm support portion 200.

[0043] In one embodiment, as shown in FIGS. 1 and 4-6, the arm support part 200 comprises an inner side plate 201 and an outer side plate 202, and a plurality of connecting plates 203 connecting the inner side plate 201 and the outer side plate 202. In one embodiment, the inner side plate 201 and the outer side plate 202 are both L-shaped plates, and the plurality of connecting plates 203 are arranged between the inner side plate 201 and the outer side plate 202 at intervals to form a single-row honeycomb structure. The single-row honeycomb structure can be a regular arrangement honeycomb structure or a scattered arrangement honeycomb structure.

[0044] In one embodiment, the arm support part 200 further comprises a top plate 204 (see FIG. 10) connecting the top ends of the inner side plate 201 and the outer side plate 202, and / or a reinforcing plate 205 connected between the plurality of connecting plates 203. In the embodiment shown in FIGS. 4 and 5, only the connecting plates 203 are arranged between the inner side plate 201 and the outer side plate 202, without the reinforcing plate 205. In the embodiment shown in FIG. 6, not only the connecting plates 203 are arranged between the inner side plate 201 and the outer side plate 202, but also two rows of reinforcing plates 205 are arranged perpendicularly to the connecting plates 203, and the two rows of reinforcing plates 205 are also arranged at intervals to form a more dense multi-row honeycomb structure than the embodiment shown in FIGS. 4 and 5, so as to further improve the strength and rigidity of the arm support part 200, and meanwhile, to improve the torsional strength of the arm support part 200, and to reduce the risk of deformation of the arm support part 200 under the action of the distal framework part 300 during acceleration and deceleration. In one embodiment, a convenient wiring passage is arranged at the bottom of the arm support part 200, and the bottom of the arm support part 200 is packaged with a plate to form a closed cavity structure, so as to further increase the rigidity of the arm support part 200 and reduce its deformation.

[0045] In one embodiment, as shown in FIGS. 1, 4, 5 and 6, the second end of the arm support part 200 has a sleeve opening 206, and the first end of the distal framework part 300 can be inserted into the sleeve opening 206 so as to be fixedly connected to the arm support part 200. In one embodiment, the sleeve opening 206 has a rectangular cross section. Further, after the first end of the distal framework part 300 is inserted into the sleeve opening 206, fasteners such as bolts are used to reinforce the connection between the two, so as to ensure the connection strength and make the whole more integral.

[0046] In one embodiment, as shown in FIG. 1, FIG. 4 and FIG. 7, the plurality of perforations 301 gradually increase in size in a direction away from the first end of the distal skeleton 300, so that the center of gravity of the distal skeleton 300 deviates from the geometric center and is close to the first end. The design of the plurality of perforations 301 can reduce the weight of the distal skeleton 300 under the condition of ensuring the strength and motion stiffness of the distal skeleton 300. In one embodiment, the perforations 301 are square holes. In addition, by setting the center of gravity of the distal skeleton 300 to deviate from the geometric center and be close to the first end, the force arm of the gravity of the distal skeleton 300 can be shortened, so that the arm support 200 can provide better support for the distal skeleton 300.

[0047] In one embodiment, as shown in FIG. 1 and FIG. 8, in order to effectively reduce the influence of electromagnetic interference and shield the light of the detector, the distal skeleton 300 includes a shielding plate 302 which is inserted into the distal skeleton 300. In one embodiment, a strip-shaped opening is formed on the shielding plate 302 for the rays from the ray source to pass through, and the detector is arranged in the shielding plate 302 and connected with the shielding plate. The shielding plate 302 is sprayed with conductive paint. In the embodiment shown in FIG. 9, the shielding plates 302 including the detectors are arranged in sequence and aligned along the distal skeleton 300 to form an I-shaped detector arrangement for completing scanning imaging using a symmetrical ray beam. In the embodiment shown in FIG. 10, the shielding plates 302 including the detectors can be arranged in the inner cavity of the arm support 200 to form an L-shaped detector arrangement with the shielding plates 302 including the detectors arranged on the distal skeleton 300, thereby increasing the scanning width by adding the detectors and expanding the scanning area to adapt to different application requirements.

[0048] In one embodiment, the cage source fixing part 100, the arm support 200 and the distal skeleton 300 are connected to form an I shape or an L shape or a transverse "∩" shape. Arranging the cage source fixing part 100, the arm support 200 and the distal skeleton 300 into an I shape or an L shape or a transverse "∩" shape facilitates subsequent expandable installation.

[0049] In an exemplary embodiment of the present disclosure, as shown in FIG. 11, a human body scanning device comprises a support column 400, and a detector arm support structure as described in the above embodiments, which comprises a cage source fixing part 100 for accommodating and fixing a radiation source of the human body scanning device, an arm support part 200 extending in a first direction and having a honeycomb structure, and a distal end skeleton part 300 for mounting a detector of the human body scanning device, the distal end skeleton part 300 extending in a second direction and having a plurality of perforations 301, the second direction being at an angle to the first direction; wherein the detector arm support structure is movably connected to the support column 400 through the cage source fixing part 100, so that the detector arm support structure can move up and down along the support column 400.

[0050] The above various embodiments of the present disclosure propose an aspect to provide a detector arm support structure, which comprises a cage source fixing part defining an accommodation space, an arm support part extending in a first direction and having a honeycomb structure, and a distal end skeleton part extending in a second direction and having a plurality of perforations, the second direction being at an angle to the first direction; wherein the arm support part is connected between the cage source fixing part and the distal end skeleton part; the detector arm support structure of the present disclosure can realize the weight reduction of the C-arm through the cage source fixing part, the arm support part and the distal end skeleton part arranged in a split manner, and the cage source fixing part is also conducive to heat dissipation; at the same time, the arm support part with the honeycomb structure can enhance the torsional resistance of the detector arm support structure, so that the operation of the C-arm is more stable, thereby preventing the shaking of the detector part and ensuring to obtain clearer and higher quality imaging, thus solving the contradiction between the lightweight of the C-arm and the shaking caused by the lightweight, and finding a compromise and balance between the lightweight of the C-arm and the shaking caused by the lightweight.

[0051] It should be understood that the various forms of flow shown above can be reordered, added to, or deleted from. For example, the steps described in the present disclosure can be executed in parallel, in sequence, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, which is not limited herein.

[0052] The above detailed description does not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that the disclosed embodiments or examples can be variously modified, combined, sub-combined and replaced according to design requirements and other factors. Any modifications, equivalent replacements and improvements within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A detector arm structure, comprising: A cage-type source fixing portion (100), wherein the cage-type source fixing portion (100) defines a receiving space; an arm support portion (200), the arm support portion (200) extending along a first direction and having a honeycomb structure; and a distal skeleton portion (300), the distal skeleton portion (300) extending along a second direction and having a plurality of through holes (301), the second direction forming an angle with the first direction; The arm support portion (200) is connected between the cage source fixing portion (100) and the distal skeleton portion (300).

2. The detector arm structure according to claim 1, wherein the cage-type source fixing part (100) has a three-sided support seat, and the three-sided support seat includes a bottom plate (101), a side plate (102) and a back plate (103) that are interconnected, and the side plate (102) and the back plate (103) are perpendicular to the plane where the bottom plate (101) is located and form a right angle.

3. The detector arm structure according to claim 2, wherein the cage source fixing part (100) has a front plate (104), and the front plate (104) is fixed to the three-sided support seat by fixing two side edges to the side plates (102) of the three-sided support seat and the corresponding side end surfaces of the bottom plate (101) so as to face the back plate (103) of the three-sided support seat.

4. The detector arm structure according to claim 3, wherein the cage source fixing part (100) has a cover plate (105), and the edge of the first surface of the cover plate (105) has a groove, so that the cover plate (105) is pressed onto the end of the three-sided support seat and is fixedly connected to the end of the three-sided support seat and the front plate (104).

5. The detector arm structure according to claim 4, wherein: The three-sided support base is formed in one piece, and the back plate (103) has a plurality of weight-reducing openings; and / or The front plate (104) has a plurality of weight-reducing openings; and / or The cover plate (105) has a thickness, and a second surface of the cover plate (105) opposite to the first surface has a recessed portion, or the cover plate (105) is provided with a through groove (1051) penetrating the thickness of the cover plate (105).

6. The detector arm structure according to claim 2, wherein the side panel (102) of the three-sided support seat has a side panel snap-in (1021), and the first end of the arm support portion (200) can snap-fit ​​the side panel snap-in (1021) so that the arm support portion (200) is fixedly connected to the side of the cage source fixing portion (100).

7. The detector arm structure according to claim 6, wherein the arm support portion (200) includes an inner plate (201) and an outer plate (202), and a plurality of connecting plates (203) connecting the inner plate (201) and the outer plate (202) are provided between the inner plate (201) and the outer plate (202).

8. The detector arm structure according to claim 7, wherein the arm support portion (200) further comprises: a top plate (204), the top plate (204) connecting the top ends of the inner plate (201) and the outer plate (202); and / or A reinforcing plate (205) is connected between the plurality of connecting plates (203).

9. The detector arm structure according to claim 6, wherein the second end of the arm support part (200) has a sleeve (206), and the first end of the distal skeleton part (300) can be inserted into the sleeve (206) so that the distal skeleton part (300) is fixedly connected to the arm support part (200).

10. The detector arm structure according to claim 9, wherein the plurality of through holes (301) gradually increase in size in a direction away from the first end of the distal skeleton portion (300), so that the center of gravity of the distal skeleton portion (300) deviates from the geometric center and approaches the first end.

11. The detector arm structure according to claim 1, wherein the distal skeleton portion (300) comprises a shielding plate (302), and the shielding plate (302) is plugged into the distal skeleton portion (300).

12. The detector arm structure according to claim 1, wherein the cage source fixing part (100), the arm support part (200) and the distal skeleton part (300) are connected to form an I shape, an L shape or a horizontal "∩" shape.

13. A human body scanning device, comprising: Support column (400): and The detector arm structure includes: A cage-type source fixing part (100), the cage-type source fixing part (100) is used to accommodate and fix the source of the human body scanning device: an arm support portion (200), the arm support portion (200) extending along a first direction and having a honeycomb structure; and a distal skeleton portion (300), the distal skeleton portion (300) being used to mount a detector of a human body scanning device, the distal skeleton portion (300) extending along a second direction and having a plurality of through holes (301), the second direction forming an angle with the first direction; The detector arm structure is movably connected to the support column (400) via the cage source fixing portion (100), so that the detector arm structure can move up and down along the support column (400).

Images