Film box connecting structure and X-ray imaging equipment

Abstract

The utility model relates to the technical field of medical instruments, and discloses a film magazine connecting structure and X-ray imaging equipment, and the film magazine connecting structure comprises a cantilever assembly which is used for being in sliding connection with a stand column; the cantilever shaft is rotationally connected with the cantilever assembly; and the wafer box assembly is connected with the cantilever shaft through an expansion sleeve, and the wafer box assembly and the cantilever shaft can jointly rotate around the axis of the cantilever shaft relative to the cantilever assembly. According to the film magazine connecting structure and the X-ray imaging equipment provided by the invention, the problem that the film magazine assembly does not immediately stop due to inertia and generates certain jittering when the film magazine assembly needs to stay at a preset position in the process that the film magazine assembly slides relative to the stand column along with the cantilever assembly in the related technology can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical apparatuses, and in particular to a cassette connecting structure and an X-ray imaging device. BACKGROUND

[0002] An X-ray imaging device generally comprises a column, a boom assembly and a cassette assembly. The column is usually used to support and fix other components of the device. The boom assembly is slidingly connected to the column. The cassette assembly is used to place and fix an imaging film or a digital imaging plate, etc., and is a key component for receiving X-rays and forming an image. The cassette assembly needs to ensure an accurate relative position relationship with an X-ray source and an object to be detected to ensure imaging quality. The cassette assembly is generally rotationally connected to the boom assembly and can slide relative to the column along with the boom assembly.

[0003] In the related art, when the cassette assembly is connected to the boom assembly, the center of gravity of the cassette assembly is far away from the column. During the process of the cassette assembly sliding relative to the column along with the boom assembly, when it is needed to stop the cassette assembly at a predetermined position, a control button is generally released to make the brake effective. At this time, the cassette assembly will not be immediately stationary due to inertia, but will produce a certain jitter in the rotation direction thereof relative to the boom assembly, which affects the user experience. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a cassette connecting structure and an X-ray imaging device, which can improve the problem in the related art that, during the process of the cassette assembly sliding relative to the column along with the boom assembly, when it is needed to stop the cassette assembly at a predetermined position, the cassette assembly will not be immediately stationary due to inertia, and a certain jitter is produced.

[0005] In a first aspect, an embodiment of the present application provides a cassette connecting structure, comprising:

[0006] a boom assembly, configured to be slidingly connected to the column;

[0007] a boom shaft, rotationally connected to the boom assembly;

[0008] a cassette assembly, connected to the boom shaft through an expansion sleeve, and the cassette assembly can rotate around an axis of the boom shaft relative to the boom assembly together with the boom shaft.

[0009] In some embodiments, the boom assembly comprises a boom and a power telescopic member, the power telescopic member has opposite first and second ends; the cassette connecting structure comprises a detent wheel, a mounting shaft and a first connecting member, the detent wheel is connected to the boom shaft through the expansion sleeve, the mounting shaft is fixedly connected to the detent wheel, and an axis of the mounting shaft is parallel to an axis of the boom shaft, the first end is rotationally connected to the mounting shaft through the first connecting member, and the second end is rotationally connected to the boom.

[0010] In some embodiments, the mounting shaft includes a first shaft segment and a second shaft segment coaxially arranged and connected end to end, the diameter of the first shaft segment being larger than the diameter of the second shaft segment, the first connector being sleeved on the second shaft segment, and the first connector abutting against the end face of the first shaft segment facing the second shaft segment; the cassette connection structure further includes a limiting component, the limiting component abutting against the side of the first connector away from the first shaft segment, and the limiting component being connected to the second shaft segment.

[0011] In some embodiments, the first connector includes a first cylindrical portion and a second cylindrical portion coaxially arranged and connected end to end. Both the first cylindrical portion and the second cylindrical portion are sleeved on the first shaft segment. The outer diameter of the first cylindrical portion is smaller than the outer diameter of the second cylindrical portion. The first cylindrical portion is located between the first shaft segment and the second cylindrical portion. The first cylindrical portion abuts against the end face of the first shaft segment facing the second shaft segment. The limiting component abuts against the side of the second cylindrical portion away from the first cylindrical portion. The first end is sleeved on the first cylindrical portion. The first shaft segment and the second cylindrical portion abut against the two opposite sides of the first end, respectively.

[0012] In some embodiments, the limiting component includes a retaining member and a first locking member, the retaining member being located between the first connecting member and the first locking member, the retaining member abutting against the first connecting member, and the first locking member being detachably connected to the second shaft segment.

[0013] In some embodiments, the limiting component further includes an elastic element located between the abutment and the first locking element, with the opposite ends of the elastic element abutting against the abutment and the first locking element, respectively.

[0014] In some embodiments, the mounting shaft is made of 40Cr material.

[0015] In some embodiments, the cantilever includes two support frames, with the second end located between the two support frames, and the cassette connection structure further includes a mounting assembly, with both support frames rotatably connected to the second end via the mounting assembly.

[0016] In some embodiments, the mounting assembly includes a second connector and a second locking member. The second connector includes a first part and a second part connected together. The first part extends through both of the support frames and the second end. The second part is located on one side of one of the support frames opposite to the second end. The second locking member is located on the other side of the support frame opposite to the second end. The second locking member is detachably connected to the first part.

[0017] In a second aspect, the embodiments of the present application provide an X-ray imaging device, which comprises the film cassette connecting structure as described in the first aspect.

[0018] The film cassette connecting structure provided by the embodiments of the present application has the beneficial effect that: the cantilever assembly is slidingly connected with the stand column, the cantilever shaft is rotationally connected with the cantilever assembly, and the film cassette assembly is connected with the cantilever shaft through the expansion sleeve, so that the film cassette assembly can rotate together with the cantilever shaft relative to the cantilever assembly around the axis of the cantilever shaft, and therefore the connection between the film cassette assembly and the cantilever shaft is relatively tight, so that when the film cassette assembly needs to be stopped at a predetermined position during the process of the film cassette assembly sliding relative to the stand column along with the cantilever assembly, the film cassette assembly can be immediately stationary and will not vibrate.

[0019] The X-ray imaging device provided by the present application has the beneficial effect compared with the prior art, which can be explained by referring to the beneficial effect of the film cassette connecting structure provided by the present application, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic diagram of the film cassette connecting structure in one of the embodiments of the present application;

[0022] Figure 2 is Figure 1 a partial structural schematic diagram of the film cassette connecting structure shown in FIG. 1;

[0023] Figure 3 is Figure 2 a partial sectional view of the film cassette connecting structure shown in FIG. 1;

[0024] Figure 4 is Figure 2 a rear view of the film cassette connecting structure shown in FIG. 1;

[0025] Figure 5 is Figure 4 a sectional view of the film cassette connecting structure shown in FIG. 1 along the direction of A-A;

[0026] Figure 6 is Figure 5 a structural schematic diagram of the cantilever, the power telescopic member, the expansion sleeve, the detent wheel, the mounting shaft and the first connecting member in the film cassette connecting structure shown in FIG. 1;

[0027] Figure 7 isFigure 6 A partial sectional view of the cantilever, power telescopic component, expansion sleeve, locking wheel, mounting shaft, and first connecting component shown.

[0028] Figure 8 yes Figure 7 A cross-sectional view of the first connector shown;

[0029] Figure 9 yes Figure 5 Another structural schematic diagram of the cantilever, power telescopic component, expansion sleeve, locking wheel, mounting shaft, and first connecting component in the plate box connection structure shown;

[0030] Figure 10 yes Figure 9 Partial sectional view of the cantilever, power telescopic component, expansion sleeve, locking wheel, mounting shaft, and first connecting component shown.

[0031] The markings in the diagram mean:

[0032] 10. Columns;

[0033] 20. Cantilever assembly;

[0034] 21. Cantilever; 211. Support frame; 22. Power telescopic component; 221. First end; 222. Second end;

[0035] 30. Cantilever shaft;

[0036] 40. Disc cartridge assembly;

[0037] 401. Earpiece;

[0038] 50. Expansion sleeve;

[0039] 60. Positioning wheel;

[0040] 70. Install the shaft;

[0041] 71. First axle segment; 72. Second axle segment;

[0042] 80. First connecting component;

[0043] 81. The first cylindrical part; 82. The second cylindrical part;

[0044] 90. Limiting components;

[0045] 91. Supporting element; 92. First locking element; 93. Elastic element;

[0046] 100. Install components;

[0047] 101. Second connecting member; 1011. First part; 1012. Second part; 102. Second locking member. Detailed Implementation

[0048] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0050] In addition, the terms "first", "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0051] In the present application, the reference "one embodiment", "some embodiments" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0052] In order to illustrate the technical solutions of the present application, the following will be described in conjunction with specific drawings and embodiments.

[0053] The X-ray imaging device generally includes a column, a cantilever assembly and a cassette assembly. Among them, the column is usually used to support and fix other parts of the device, the cantilever assembly is slidingly connected to the column, and the cassette assembly is used to place and fix imaging films or digital imaging plates and the like, which is a key component for receiving X-rays and forming images, and needs to ensure accurate relative position relationship between the X-ray source and the detected object to ensure imaging quality. The cassette assembly is generally rotatably connected with the cantilever assembly and can slide with the cantilever assembly relative to the column.

[0054] In the related art, when the cassette assembly is connected with the cantilever assembly, the center of gravity of the cassette assembly is far away from the stand column. During the process that the cassette assembly slides relative to the stand column along with the cantilever assembly, when it is needed to stop the cassette assembly at a predetermined position, the control button is generally released to make the brake effective. Since the connection mode between the cassette assembly and the cantilever assembly generally includes key connection, there is a gap between the key groove and the key for smooth assembly, so at this time, the cassette assembly will not be immediately stationary due to inertia, but will produce a certain jitter in the rotation direction thereof relative to the cantilever assembly, which affects the user experience.

[0055] Therefore, the cassette connecting structure and the X-ray imaging device are provided. Since the cantilever assembly is slidingly connected with the stand column, the cantilever shaft is rotationally connected with the cantilever assembly, and the cassette assembly is connected with the cantilever shaft through the expansion sleeve, the cassette assembly can rotate together with the cantilever shaft relative to the cantilever assembly around the axis of the cantilever shaft, so the connection between the cassette assembly and the cantilever shaft is relatively close. Therefore, during the process that the cassette assembly slides relative to the stand column along with the cantilever assembly, when it is needed to stop the cassette assembly at a predetermined position, the cassette assembly will be immediately stationary and will not produce jitter.

[0056] Please refer to Figures 1 to 5 In a first aspect, the embodiments of the present application provide a cassette connecting structure, which comprises a cantilever assembly 20, a cantilever shaft 30 and a cassette assembly 40.

[0057] The cantilever assembly 20 is used to be slidingly connected with the stand column 10.

[0058] The cantilever shaft 30 is rotationally connected with the cantilever assembly 20, for example, through a bearing.

[0059] The cassette assembly 40 is connected with the cantilever shaft 30 through the expansion sleeve 50, and the cassette assembly 40 can rotate together with the cantilever shaft 30 relative to the cantilever assembly 20 around the axis of the cantilever shaft 30.

[0060] The maximum torque allowed by the expansion sleeve 50 can reach 251 N·m. After being fixed with the cantilever shaft 30, the gap generated by the key connection structure can be completely eliminated, and the expansion sleeve 50 will not slip during normal use.

[0061] As can be seen from the above, the cassette connecting structure provided by the embodiments of the present application is characterized in that the cantilever assembly 20 is slidingly connected with the stand column 10, the cantilever shaft 30 is rotationally connected with the cantilever assembly 20, and the cassette assembly 40 is connected with the cantilever shaft 30 through the expansion sleeve 50. The cassette assembly 40 can rotate together with the cantilever shaft 30 relative to the cantilever assembly 20 around the axis of the cantilever shaft 30, so the connection between the cassette assembly 40 and the cantilever shaft 30 is relatively close. Therefore, during the process that the cassette assembly 40 slides relative to the stand column 10 along with the cantilever assembly 20, when it is needed to stop the cassette assembly 40 at a predetermined position, the cassette assembly 40 will be immediately stationary and will not produce jitter.

[0062] The film cassette connecting structure provided by the embodiments of the present application reduces the shaking of the film cassette assembly 40 by only mechanical structure, so that the chest film stand does not need to be provided with an electric power assisting function, and does not need to import parts related to the electric power assisting function, such as a strain gauge, so that the cost can be avoided from rising.

[0063] Optionally, the cantilever shaft 30 is connected with the film cassette assembly 40 through the ear piece 401.

[0064] Please refer to Figure 6 and Figure 7 In the embodiments, the cantilever assembly 20 includes a cantilever 21 and a power telescopic piece 22, the power telescopic piece 22 has opposite first and second ends 221 and 222; the film cassette connecting structure includes a clamping wheel 60, a mounting shaft 70 and a first connecting piece 80, the clamping wheel 60 is connected with the cantilever shaft 30 through the expansion sleeve 50, the mounting shaft 70 is fixedly connected with the clamping wheel 60, and the axis of the mounting shaft 70 is parallel to the axis of the cantilever shaft 30, the first end 221 is rotatably connected with the mounting shaft 70 through the first connecting piece 80, and the second end 222 is rotatably connected with the cantilever 21.

[0065] By using the above scheme, the first end 221 can be rotatably connected with the mounting shaft 70 by using the first connecting piece 80, and the wear resistance of the connection between the first end 221 and the mounting shaft 70 can be increased.

[0066] It should be noted that the power telescopic piece 22 can be provided as an air spring, and a button on the film cassette side handrail is pressed to make the electromagnet pull the steel wire rope to trigger the air spring to be unlocked, so that the film cassette assembly 40 and the cantilever shaft 30 are driven to jointly rotate relative to the cantilever assembly 20 around the axis of the cantilever shaft 30 by the elongation and shortening of the power telescopic piece 22, and the film cassette assembly 40 is flipped around the axis of the cantilever shaft 30.

[0067] Compared with the key connection, the expansion sleeve 50 can prevent the axial movement of the clamping wheel 60, so that the parts or structures for axial positioning can be cancelled, the key itself and the key groove on the cantilever shaft 30 are also cancelled, so that the machining cost can be reduced and the assembly process can be simplified.

[0068] The first end 221 and the mounting shaft 70 are both rotatably connected with the first connecting piece 80, or one of the first end 221 and the mounting shaft 70 is rotatably connected with the first connecting piece 80, and the other one is fixedly connected with the first connecting piece 80.

[0069] The sheet box connecting structure provided by the application has an anti-wear design, and after long-term use, the surface of the part fitting position is not seriously worn and is not obviously deformed, the gap between the parts is avoided from being increased, the shaking caused by the manual lifting braking of the sheet box assembly 40 is avoided from being aggravated, the sheet box assembly 40 is avoided from being inclined in the normal state, and the imaging of the flat plate is ensured. The sheet box connecting structure provided by the application can significantly improve the service life and mechanical strength of the cantilever assembly 20, thereby increasing the reliability, and is suitable for high-frequency use requirements of the overturning function of the sheet box assembly 40.

[0070] For example, the first end 221 is provided with a hole, and the first connecting piece 80 is located in the hole. The first connecting piece 80 is sleeved on the mounting shaft 70. The first connecting piece 80 can be a shoulder type bushing, which can effectively increase the wear resistance of the structure and will not affect the smooth rotation of the mounting shaft 70 in the hole of the first end 221.

[0071] It should be further pointed out that the first connecting piece 80 can be made of a material that is more wear-resistant. When the first connecting piece 80 is worn, only the first connecting piece 80 needs to be replaced.

[0072] Optionally, the mounting shaft 70 includes a first shaft segment 71 and a second shaft segment 72 coaxially arranged and connected end to end. The shaft diameter of the first shaft segment 71 is greater than the shaft diameter of the second shaft segment 72. The first connecting piece 80 is sleeved on the second shaft segment 72, and the first connecting piece 80 abuts against the end face of the first shaft segment 71 facing the second shaft segment 72. The sheet box connecting structure further includes a limiting assembly 90 abutting against the side of the first connecting piece 80 away from the first shaft segment 71, and the limiting assembly 90 is connected with the second shaft segment 72.

[0073] In this way, the first connecting piece 80 can be limited by the end face of the first shaft segment 71 facing the second shaft segment 72 and the limiting assembly 90.

[0074] For reference Figure 8 Optionally, the first connecting piece 80 includes a first cylindrical portion 81 and a second cylindrical portion 82 coaxially arranged and connected end to end. The first cylindrical portion 81 and the second cylindrical portion 82 are both sleeved on the first shaft segment 71. The outer diameter of the first cylindrical portion 81 is smaller than the outer diameter of the second cylindrical portion 82. The first cylindrical portion 81 is located between the first shaft segment 71 and the second cylindrical portion 82. The first cylindrical portion 81 abuts against the end face of the first shaft segment 71 facing the second shaft segment 72. The limiting assembly 90 abuts against the side of the second cylindrical portion 82 away from the first cylindrical portion 81. The first end 221 is sleeved on the first cylindrical portion 81. The first shaft segment 71 and the second cylindrical portion 82 abut against the two opposite sides of the first end 221, respectively.

[0075] In this way, the first end 221 can be limited by the first shaft segment 71 and the second cylindrical portion 82.

[0076] The limiting assembly 90 comprises a bearing part 91 and a first locking part 92, the bearing part 91 is located between the first connecting part 80 and the first locking part 92, the bearing part 91 bears against the first connecting part 80, and the first locking part 92 is detachably connected with the second shaft segment 72.

[0077] In this way, the first connecting part 80 and the bearing part 91 can be sequentially sleeved on the mounting shaft 70, and then the first locking part 92 is connected with the second shaft segment 72, so that the installation process is more convenient.

[0078] It should be noted that the first locking part 92 and the second shaft segment 72 can be detachably connected through clamping, screw connection, bolt connection or buckle connection.

[0079] For example, the bearing part 91 can be a large flat pad, and the first locking part 92 can be a nylon nut.

[0080] Optionally, the limiting assembly 90 further comprises an elastic part 93, the elastic part 93 is located between the bearing part 91 and the first locking part 92, and the opposite ends of the elastic part 93 bear against the bearing part 91 and the first locking part 92 respectively.

[0081] In this way, the first connecting part 80 can be tightly fastened, and the first connecting part 80 and the first end 221 are not pressed too tightly, which affects the rotation of the first end 221 relative to the mounting shaft 70.

[0082] Optionally, the material of the mounting shaft 70 is 40Cr.

[0083] In this way, the strength of the mounting shaft 70 is higher, more wear-resistant, and has a longer service life.

[0084] The above-mentioned film box connecting structure can withstand 20,000 times of full-stroke flipping motion of the film box assembly 40, and there is no serious wear at the matching part of the mounting shaft 70 and the hole of the first end 221.

[0085] Please refer to Figure 9 and Figure 10 In the embodiment, the cantilever 21 comprises two support frames 211, the second end 222 is located between the two support frames 211, and the film box connecting structure further comprises a mounting assembly 100, and the two support frames 211 are rotationally connected with the second end 222 through the mounting assembly 100.

[0086] By adopting the above-mentioned scheme, the load transmitted by the film box assembly 40 to the second end 222 can be applied to the two support frames 211 of the cantilever 21, so that the stress is more balanced, and the support frame 211 is prevented from being deformed due to stress concentration.

[0087] Optionally, the mounting assembly 100 comprises a second connecting member 101 and a second locking member 102, the second connecting member 101 comprises a first part 1011 and a second part 1012 connected with each other, the first part 1011 penetrates through the two support frames 211 and the second end 222, the second part 1012 is located on the side of one of the support frames 211 away from the second end 222, and the second locking member 102 is located on the side of the other support frame 211 away from the second end 222, and the second locking member 102 is detachably connected with the first part 1011.

[0088] In this way, the load transmitted to the second end 222 of the film cassette assembly 40 can be applied to the two support frames 211 of the cantilever 21 through the second connecting member 101, and the stress is more balanced.

[0089] It should be noted that the second locking member 102 and the first part 1011 can be detachably connected by means of clamping, screw connection, bolt connection or buckle connection.

[0090] For example, the second connecting member 101 is provided as a bolt, and the second locking member 102 is provided as a hexagonal nut.

[0091] Optionally, the two support frames 211 are symmetrically arranged and connected with the fixing seat, and the fixing seat is fixed on the main body of the cantilever 21 by four hexagonal nuts.

[0092] In the second aspect, the embodiments of the present application provide an X-ray imaging device, and the X-ray imaging device comprises the film cassette connecting structure as in the first aspect.

[0093] The X-ray imaging device provided by the embodiments of the present application has the following advantages: the cantilever assembly 20 is slidably connected with the stand 10, the cantilever shaft 30 is rotatably connected with the cantilever assembly 20, and the film cassette assembly 40 is connected with the cantilever shaft 30 through the expansion sleeve 50, so that the film cassette assembly 40 can rotate around the axis of the cantilever shaft 30 together with the cantilever shaft 30 relative to the cantilever assembly 20, and the connection between the film cassette assembly 40 and the cantilever shaft 30 is relatively tight. Therefore, during the process that the film cassette assembly 40 slides relative to the stand 10 together with the cantilever assembly 20, when it is required to stop the film cassette assembly 40 at a predetermined position, the film cassette assembly 40 will immediately stop and will not vibrate.

[0094] It can be understood that the X-ray imaging device provided by the embodiments of the present application can further comprise an X-ray ball tube, and the X-ray ball tube is arranged opposite to the film cassette assembly 40.

[0095] The above examples are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A cassette connecting structure characterized by comprising: The utility model relates to a kind of cassette box, including: Cantilever assembly (20) for sliding connection with stand (10); Cantilever shaft (30) is rotatably connected with the cantilever assembly (20); Sheet box assembly (40) is connected with the cantilever shaft (30) by expansion sleeve (50), and the sheet box assembly (40) can be rotatable with the cantilever shaft (30) relative to the cantilever assembly (20) around the axis of the cantilever shaft (30).

2. The cassette connecting structure according to claim 1, wherein The cantilever assembly (20) includes cantilever (21) and power telescopic piece (22), and the power telescopic piece (22) has opposite first end (221) and second end (222);The sheet box connecting structure includes detent wheel (60), mounting shaft (70) and first connecting piece (80), the detent wheel (60) is connected with the cantilever shaft (30) by the expansion sleeve (50), the mounting shaft (70) is fixedly connected with the detent wheel (60), and the axis of the mounting shaft (70) is parallel to the axis of the cantilever shaft (30), the first end (221) is rotatably connected with the mounting shaft (70) by the first connecting piece (80), and the second end (222) is rotatably connected with the cantilever (21).

3. The cassette connection structure according to claim 2, wherein The mounting shaft (70) includes coaxially arranged and end-to-end first shaft section (71) and second shaft section (72), the shaft diameter of the first shaft section (71) is greater than the shaft diameter of the second shaft section (72), the first connecting piece (80) is sleeved on the second shaft section (72), and the first connecting piece (80) and the end face of the first shaft section (71) towards the second shaft section (72) are abutted;The limiting assembly (90) is abutted with the side of the first connecting piece (80) away from the first shaft section (71), and the limiting assembly (90) is connected with the second shaft section (72).

4. The cassette connecting structure according to claim 3, wherein The first connecting piece (80) includes coaxially arranged and end-to-end first cylindrical portion (81) and second cylindrical portion (82), the first cylindrical portion (81) and the second cylindrical portion (82) are both sleeved on the first shaft section (71), the outer diameter of the first cylindrical portion (81) is less than the outer diameter of the second cylindrical portion (82), the first cylindrical portion (81) is located between the first shaft section (71) and the second cylindrical portion (82), the first cylindrical portion (81) and the end face of the first shaft section (71) towards the second shaft section (72) are abutted, the limiting assembly (90) and the side of the second cylindrical portion (82) away from the first cylindrical portion (81) are abutted, the first end (221) is sleeved on the first cylindrical portion (81), and the first shaft section (71) and the second cylindrical portion (82) are abutted on the two sides of the first end (221) respectively.

5. The cassette connection structure according to claim 3, wherein The limiting assembly (90) comprises a bearing piece (91) and a first locking piece (92), the bearing piece (91) is located between the first connecting piece (80) and the first locking piece (92), the bearing piece (91) bears against the first connecting piece (80), and the first locking piece (92) is detachably connected with the second shaft section (72).

6. The cassette connecting structure according to claim 5, wherein The limiting assembly (90) further comprises an elastic piece (93), the elastic piece (93) is located between the bearing piece (91) and the first locking piece (92), and opposite ends of the elastic piece (93) bear against the bearing piece (91) and the first locking piece (92) respectively.

7. The cassette connecting structure according to claim 2, wherein The material of the mounting shaft (70) is 40Cr.

8. The magazine attachment structure according to any one of claims 2 to 7, characterized by The cantilever (21) comprises two support frames (211), the second end (222) is located between the two support frames (211), and the sheet box connecting structure further comprises a mounting assembly (100), and the two support frames (211) are rotationally connected with the second end (222) through the mounting assembly (100).

9. The cartridge connection structure according to claim 8, wherein The mounting assembly (100) comprises a second connecting piece (101) and a second locking piece (102), the second connecting piece (101) comprises a first part (1011) and a second part (1012) connected with each other, the first part (1011) penetrates through the two support frames (211) and the second end (222), the second part (1012) is located on one side of one of the support frames (211) away from the second end (222), and the second locking piece (102) is located on one side of the other support frame (211) away from the second end (222), and the second locking piece (102) is detachably connected with the first part (1011).

10. An X-ray imaging apparatus, characterized by The X-ray imaging device comprises the sheet box connecting structure according to any one of claims 1 to 9.

Images