An X-ray imaging device

Abstract

This invention discloses an X-ray imaging device, relating to the field of medical imaging equipment technology, which allows operators to perform patient positioning operations from the control room, eliminating the need to run back and forth between patient positioning and imaging. The X-ray imaging device includes: an X-ray component, a detector component, a bed component, a column component, and a sliding rail component. The detector component is disposed in the bed component and connected to the column component. The bed component includes a bed body, a bed surface, and a bed surface lifting component. The bed surface supports the patient, and the bed surface lifting component adjusts the height of the bed surface. The detector component rises and falls along with the bed surface. The sliding rail component drives the detector component and the X-ray component to the detection position. The sliding rail component enables synchronous movement of the detector component and the X-ray component, eliminating the need for manual positioning by the operator and significantly improving operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical imaging equipment technology, and in particular to an X-ray imaging device. Background Technology

[0002] In modern medical imaging, X-ray radiography is a commonly used diagnostic tool. Traditional X-ray equipment typically requires the operator to frequently move between patient positioning and imaging, which not only increases the complexity of the operation but may also affect the accuracy and efficiency of the imaging. Furthermore, the operator must maintain a specific posture and operating method during imaging, which can easily lead to fatigue and occupational diseases over time.

[0003] With the development of medical imaging technology, the demand for automation and intelligence in imaging equipment is increasing. Existing X-ray imaging equipment mostly relies on manual operation, which is not only inefficient, but also places a heavy workload on operators under high-intensity working conditions. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an X-ray imaging device that allows the operator to complete the positioning operation in the operating room without having to run back and forth between patient positioning and imaging.

[0005] This invention provides an X-ray imaging device, including an X-ray assembly, a detector assembly, a bed assembly, a column assembly, and a sliding rail assembly. The bed assembly is disposed on the ground, the sliding rail assembly is disposed on one side of the bed assembly, the detector assembly is disposed within the bed assembly, the column assembly is slidably disposed on the sliding rail assembly, the X-ray assembly is vertically and flexibly disposed on the column assembly, and the detector assembly is disposed within the bed assembly and connected to the column assembly. The bed assembly includes a bed body, a bed surface, and a bed surface lifting assembly. The bed surface is used to support the patient, the bed surface lifting assembly is used to adjust the height of the bed surface, and the detector assembly rises and falls together with the bed surface. The sliding rail assembly can drive the detector assembly and the X-ray assembly to a detection position.

[0006] An X-ray imaging device according to an embodiment of the present invention has at least the following advantages: the detector assembly and the X-ray assembly can be driven to move synchronously by the movable slide rail assembly, eliminating the need for operators to manually position the detector assembly and the X-ray assembly, thus greatly improving the operator's operating efficiency.

[0007] According to an X-ray imaging device of the present invention, the movable slide rail assembly includes a track frame, a linear circular rail, a sliding frame base plate, and a sliding frame base plate driving mechanism. The track frame is disposed on one side of the bed assembly, and the length direction of the track frame is consistent with the length direction of the bed assembly. The linear circular rail is disposed on the track frame along the length direction of the track frame. The sliding frame base plate is slidably disposed on the linear circular rail. The column assembly is disposed on the sliding frame base plate. The sliding frame base plate driving mechanism is used to drive the sliding frame base plate to slide along the linear circular rail.

[0008] According to an X-ray imaging device of the present invention, the sliding frame base plate drive mechanism includes a motor mounting bracket, a geared motor, a synchronous belt tensioning mechanism, and a synchronous belt. The motor mounting bracket is disposed at one end of the track frame, the geared motor is disposed on the motor mounting bracket, the synchronous belt tensioning mechanism is disposed at the other end of the track frame, and one end of the synchronous belt is connected to one side of the sliding frame base plate, and the other end passes around the geared motor and the synchronous belt tensioning mechanism and is connected to the other side of the sliding frame base plate.

[0009] According to the X-ray imaging device of the present invention, the sliding frame base plate drive mechanism further includes a permanent magnet electromagnetic clutch, which is disposed on the geared motor. When the permanent magnet electromagnetic clutch is energized, the geared motor loses its self-locking capability.

[0010] According to the X-ray imaging device of the present invention, the sliding frame base plate driving mechanism further includes a pull wire displacement sensor. The pull wire of the pull wire displacement sensor is connected to the sliding frame base plate. When the sliding frame base plate moves, it drives the pull wire of the pull wire displacement sensor to move. The pull wire displacement sensor can detect the moving position of the sliding frame base plate.

[0011] According to an X-ray imaging device of the present invention, the sliding frame base plate driving mechanism further includes a limit switch pressure plate and a limit switch. The limit switch pressure plate is disposed on the track frame, the limit switch is disposed on the sliding frame base plate, and the limit switch is attached to the limit switch pressure plate.

[0012] According to an X-ray imaging device of the present invention, the detector assembly includes a detector bracket, a flat panel detector, a detector telescopic assembly, and a detector sliding mechanism. The detector bracket is disposed in the bed assembly, the flat panel detector is disposed on the detector bracket, and the detector sliding mechanism includes a detector slide rail and a detector slider. The detector slide rail is disposed on one side of the bed assembly, and the detector slider is slidably disposed on the detector slide rail. One end of the detector telescopic assembly is connected to the detector slider, and the other end is connected to the detector bracket. The detector telescopic assembly is used to cooperate with the bed assembly in raising and lowering.

[0013] According to an X-ray imaging device of the present invention, the detector assembly further includes a centering mechanism, which includes a centering positioning plate, a centering mechanism mounting plate, a centering guide block, a centering transmission rod, a first return spring, and a centering positioning bearing. The centering positioning plate is disposed on the sliding frame base plate and has a locking groove. The centering mechanism mounting plate is disposed on the detector slider, the centering guide block is disposed on the centering mechanism mounting plate, the centering transmission rod is inserted into the centering guide block, and the centering positioning bearing is disposed at one end of the centering transmission rod and close to the centering positioning plate. One end of the first return spring abuts against the centering guide block, and the other end abuts against the centering positioning bearing. The first return spring can drive the centering positioning bearing to move closer to the centering positioning plate, and the centering positioning bearing can be accommodated in the locking groove.

[0014] According to an X-ray imaging device of the present invention, the column assembly and the sliding frame base plate are connected by a rotation positioning mechanism, which is used to rotate or fix the column assembly.

[0015] According to an X-ray imaging device of the present invention, the rotary positioning mechanism includes a rotary bearing, a rotary positioning plate, a first positioning pin, a second positioning pin, a hinge seat, a hinge plate, a second return spring, and a third return spring. The inner ring of the rotary bearing is fixedly mounted on the sliding frame base plate. The rotary positioning plate is mounted on the outer ring of the rotary bearing. The column assembly is mounted on the rotary positioning plate. The rotary positioning plate has a plurality of positioning holes. The hinge seat is mounted on the sliding frame base plate. The hinge plate is hinged to the hinge seat. One end of the first positioning pin is hinged to the middle of the hinge plate, and the other end passes through the sliding frame base plate and is inserted into the positioning hole. One end of the second positioning pin passes through the sliding frame base plate and abuts against one end of the hinge plate. The other end of the second positioning pin is provided with a pedal. The second return spring is sleeved on the first positioning pin and drives the first positioning pin away from the rotary positioning plate. The third return spring is sleeved on the second positioning pin and drives the second positioning pin away from the hinge plate.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the bed assembly according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the detector assembly according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the centering mechanism according to a preferred embodiment of the present invention;

[0023] Figure 6 This is a half-sectional schematic diagram of the centering mechanism according to a preferred embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the positioning plate in a preferred embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the movable slide rail assembly according to a preferred embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the sliding frame base plate drive mechanism according to a preferred embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the rotary positioning mechanism according to a preferred embodiment of the present invention;

[0028] Figure 11 This is an exploded view of a preferred embodiment of the rotary positioning mechanism of the present invention;

[0029] Figure 12 This is a schematic diagram of the assembly of the first locating pin and the second locating pin according to a preferred embodiment of the present invention. Figure 1 ;

[0030] Figure 13 This is a schematic diagram of the assembly of the first locating pin and the second locating pin according to a preferred embodiment of the present invention. Figure 2 . Detailed Implementation

[0031] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] Reference Figures 1 to 13An X-ray imaging device includes: an X-ray assembly 100, a detector assembly 200, a bed assembly 300, a column assembly 400, and a sliding rail assembly 500.

[0036] The bed assembly 300 is mounted on the ground. The sliding rail assembly 500 is mounted on one side of the bed assembly 300. The detector assembly 200 is mounted within the bed assembly 300. The column assembly 400 is slidably mounted on the sliding rail assembly 500. The X-ray assembly 100 is vertically and retractably mounted on the column assembly 400. The detector assembly 200 is mounted within the bed assembly 300 and connected to the column assembly 400.

[0037] The bed frame assembly 300 includes a bed frame 310, a bed surface 320, and a bed surface lifting assembly 330.

[0038] The bed surface 320 is used to support the patient, and the bed surface lifting assembly 330 is used to adjust the height of the bed surface 320. The detector assembly 200 rises and falls together with the bed surface 320.

[0039] The movable slide rail assembly 500 can drive the detector assembly 200 and the X-ray assembly 100 to the detection position.

[0040] It is understood that, in the embodiments of the present invention, the detector assembly 200 and the X-ray assembly 100 can be driven to move synchronously by the movable slide rail assembly 500, greatly improving the operator's operational efficiency. Furthermore, in some embodiments of the present invention, when it is necessary to move the detector assembly 200 and the X-ray assembly 100 quickly, they can be moved manually, further significantly improving operational efficiency.

[0041] Reference Figures 1 to 8 The movable slide rail assembly 500 includes a track frame 510, a linear circular rail 520, a sliding frame base plate 530, and a sliding frame base plate drive mechanism 540. The track frame 510 is disposed on one side of the bed assembly 300. The length direction of the track frame 510 is consistent with the length direction of the bed assembly 300. The linear circular rail 520 is disposed on the track frame 510 along its length direction. The sliding frame base plate 530 is slidably disposed on the linear circular rail 520. The column assembly 400 is disposed on the sliding frame base plate 530. The sliding frame base plate drive mechanism 540 is used to drive the sliding frame base plate 530 to slide along the linear circular rail 520.

[0042] Understandably, using the linear circular rail 520 to guide the movement of the sliding frame base plate 530 ensures smooth movement, reduces friction, and facilitates smooth motion.

[0043] Reference Figure 8 and Figure 9The sliding frame base plate drive mechanism 540 includes a motor mounting bracket 541, a geared motor 542, a synchronous belt tensioning mechanism 543, and a synchronous belt 544. The motor mounting bracket 541 is located at one end of the track frame 510. The geared motor 542 is mounted on the motor mounting bracket 541. The synchronous belt tensioning mechanism 543 is located at the other end of the track frame 510. One end of the synchronous belt 544 is connected to one side of the sliding frame base plate 530, and the other end passes over the geared motor 542 and the synchronous belt tensioning mechanism 543 before being connected to the other side of the sliding frame base plate 530.

[0044] It is understandable that by driving the synchronous belt 544 to rotate through the geared motor 542, the sliding frame base plate 530 can be driven to slide along the linear circular rail 520, thereby driving the column assembly 400 to move.

[0045] Reference Figure 8 and Figure 9 The sliding frame base plate drive mechanism 540 also includes a permanent magnet electromagnetic clutch 545. The permanent magnet electromagnetic clutch 545 is mounted on the geared motor 542. When the permanent magnet electromagnetic clutch 545 is energized, the geared motor 542 loses its self-locking function.

[0046] Understandably, the efficiency of driving the column assembly 400 through the geared motor 542 is relatively low. When a large movement of the column assembly 400 is required, the permanent magnet electromagnetic clutch 545 can be energized, and the geared motor 542 will then lose its self-locking function. The operator can then push the column assembly 400 to achieve rapid movement.

[0047] Reference Figure 8 and Figure 9 The sliding frame base plate drive mechanism 540 also includes a pull-wire displacement sensor 546. The pull wire of the pull-wire displacement sensor 546 is connected to the sliding frame base plate 530. When the sliding frame base plate 530 moves, it drives the pull wire of the pull-wire displacement sensor 546 to move, and the pull-wire displacement sensor 546 can detect the moving position of the sliding frame base plate 530.

[0048] When the column assembly 400 is manually moved, the position of the column assembly 400 can be detected by the pull wire displacement sensor 546, thus avoiding excessive displacement control caused by subsequent electric drive.

[0049] Reference Figure 8 and Figure 10 The sliding frame base plate drive mechanism 540 also includes a limit switch plate 547 and a limit switch 548. The limit switch plate 547 is mounted on the track frame 510. The limit switch 548 is mounted on the sliding frame base plate 530. The limit switch 548 is attached to the limit switch plate 547.

[0050] It is understood that, in some embodiments of the invention, the limit position of the sliding frame base plate drive mechanism 540 is controlled by the limit switch pressure plate 547. During the movement of the sliding frame base plate 530, the limit switch 548 remains in contact with the limit switch pressure plate 547. When the limit switch 548 disengages from the limit switch pressure plate 547, the reduction motor 542 stops. The limit position can be controlled by controlling the length of the limit switch pressure plate 547.

[0051] Reference Figures 4 to 10 The detector assembly 200 includes a detector bracket 210, a flat panel detector 220, a detector telescopic assembly 230, and a detector sliding mechanism 240. The detector bracket 210 is disposed within the bed assembly 300. The flat panel detector 220 is disposed on the detector bracket 210. The detector sliding mechanism 240 includes a detector slide rail 241 and a detector slider 242. The detector slide rail 241 is disposed on one side of the bed assembly 300. The detector slider 242 is slidably disposed on the detector slide rail 241. One end of the detector telescopic assembly 230 is connected to the detector slider 242, and the other end is connected to the detector bracket 210. The detector telescopic assembly 230 is used to coordinate with the lifting and lowering of the bed assembly 300.

[0052] Reference Figures 4 to 10 The detector assembly 200 also includes a centering mechanism 250. The centering mechanism 250 includes a centering positioning plate 251, a centering mechanism mounting plate 252, a centering guide block 253, a centering transmission rod 254, a first return spring 255, and a centering positioning bearing 256. The centering positioning plate 251 is mounted on the sliding frame base plate 530. The centering positioning plate 251 has a locking groove 251a. The centering mechanism mounting plate 252 is mounted on the detector slider 242. The centering guide block 253 is mounted on the centering mechanism mounting plate 252. The centering transmission rod 254 is inserted into the centering guide block 253. The centering positioning bearing 256 is located at one end of the centering transmission rod 254 and close to the centering positioning plate 251. One end of the first return spring 255 abuts against the centering guide block 253, and the other end abuts against the centering positioning bearing 256. The first return spring 255 can drive the centering positioning bearing 256 to approach the centering positioning plate 251. The centering positioning bearing 256 can be accommodated in the locking groove 251a.

[0053] It is worth noting that during the detection process, the detector assembly 200 needs to be located directly below the X-ray assembly. In this embodiment of the invention, the column assembly 400 and the detector assembly 200 are connected by the centering mechanism 250. When the column assembly 400 is moved, the centering positioning plate 251 drives the centering mechanism mounting plate 252 and the detector slider 242 to move, thereby driving the detector bracket 210 and the flat panel detector 220 to move together, achieving synchronous movement of the two. The operator does not need to operate the column assembly 400 and the detector assembly 200 separately, saving alignment time and greatly improving operating efficiency.

[0054] Reference Figures 10 to 13 The column assembly 400 and the sliding frame base plate 530 are connected by a rotary positioning mechanism 550. The rotary positioning mechanism 550 is used to rotate or fix the column assembly 400.

[0055] Reference Figures 10 to 13 The rotary positioning mechanism 550 includes a slewing bearing 551, a rotary positioning plate 552, a first positioning pin 553, a second positioning pin 554, a hinge seat 555, a hinge plate 556, a second return spring 557, and a third return spring 558. The inner ring of the slewing bearing 551 is fixedly mounted on the sliding frame base plate 530. The rotary positioning plate 552 is mounted on the outer ring of the slewing bearing 551. The column assembly 400 is mounted on the rotary positioning plate 552. The rotary positioning plate 552 has several positioning holes 552a. The hinge seat 555 is mounted on the sliding frame base plate 530. The hinge plate 556 is hinged to the hinge seat 555. One end of the first positioning pin 553 is hinged to the middle of the hinge plate 556, and the other end passes through the sliding frame base plate 530 and is inserted into the positioning hole 552a. One end of the second positioning pin 554 passes through the sliding frame base plate 530 and abuts against one end of the hinge plate 556. A pedal is provided at the other end of the second positioning pin 554. The second return spring 557 is sleeved on the first positioning pin 553. The second return spring 557 drives the first positioning pin 553 away from the rotating positioning plate 552. The third return spring 558 is sleeved on the second positioning pin 554. The third return spring 558 drives the second positioning pin 554 away from the hinge plate 556.

[0056] It is worth noting that, in the embodiments of the present invention, the rotation and positioning of the column assembly 400 can be realized by the rotation positioning mechanism 550, thereby realizing X-ray inspection in multiple postures.

[0057] Specifically, the operator presses the pedal for the second positioning pin 554, causing the lower end of the second positioning pin 554 to press down on the hinge plate 556. At this time, the first positioning pin 553, which is hinged to the middle of the hinge plate 556, moves downward and disengages from the positioning hole 552a. The slewing bearing 551 then unlocks, allowing the column assembly 400 to rotate freely. Releasing the pedal for the second positioning pin 554 causes the first positioning pin 553 and the second positioning pin 554 to reset under the drive of the second return spring 557 and the third return spring 558. The first positioning pin 553 then re-inserts into the new positioning hole 552a, locking the column assembly 400.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An X-ray imaging device, characterized in that, include: X-ray assembly (100), detector assembly (200), bed assembly (300), column assembly (400), and moving slide rail assembly (500); The bed assembly (300) is disposed on the ground, the sliding rail assembly (500) is disposed on one side of the bed assembly (300), the column assembly (400) is slidably disposed on the sliding rail assembly (500), the X-ray assembly (100) is vertically disposed on the column assembly (400), and the detector assembly (200) is disposed in the bed assembly (300) and connected to the column assembly (400). The bed assembly (300) includes a bed body (310), a bed surface (320), and a bed surface lifting assembly (330). The bed surface (320) is used to support the patient, the bed surface lifting assembly (330) is used to adjust the height of the bed surface (320), and the detector assembly (200) rises and falls together with the bed surface (320); The movable slide rail assembly (500) can drive the detector assembly (200) and the X-ray assembly (100) to the detection position; The detector assembly (200) includes a detector bracket (210), a flat panel detector (220), a detector telescopic assembly (230), and a detector sliding mechanism (240). The detector bracket (210) is disposed in the bed assembly (300), and the flat panel detector (220) is disposed on the detector bracket (210). The detector sliding mechanism (240) includes a detector slide rail (241) and a detector slider (242). The detector slide rail (241) is disposed on one side of the bed assembly (300), and the detector slider (242) is slidably disposed on the detector slide rail (241). One end of the detector telescopic assembly (230) is connected to the detector slider (242), and the other end is connected to the detector bracket (210). The detector telescopic assembly (230) is used to cooperate with the bed assembly (300) to lift and lower. The detector assembly (200) further includes a centering mechanism (250), which includes a centering positioning plate (251), a centering mechanism mounting plate (252), a centering guide block (253), a centering transmission rod (254), a first reset spring (255), and a centering positioning bearing (256). The centering positioning plate (251) is disposed on the sliding frame base plate (530) of the movable slide rail assembly (500), and the centering positioning plate (251) is provided with a locking groove (251a). The centering mechanism mounting plate (252) is disposed on the detector slider (242), and the centering guide block (253) is provided with a locking groove (251a). On the centering mechanism mounting plate (252), the centering transmission rod (254) is inserted into the centering guide block (253). The centering positioning bearing (256) is disposed at one end of the centering transmission rod (254) and close to the centering positioning plate (251). One end of the first return spring (255) abuts against the centering guide block (253), and the other end abuts against the centering positioning bearing (256). The first return spring (255) can drive the centering positioning bearing (256) to approach the centering positioning plate (251). The centering positioning bearing (256) can be accommodated in the locking groove (251a).

2. The X-ray imaging device according to claim 1, characterized in that, The movable slide rail assembly (500) further includes a track frame (510), a linear circular rail (520), and a sliding frame base plate drive mechanism (540). The track frame (510) is disposed on one side of the bed assembly (300), and the length direction of the track frame (510) is consistent with the length direction of the bed assembly (300). The linear circular rail (520) is disposed on the track frame (510) along the length direction of the track frame (510). The sliding frame base plate (530) is slidably disposed on the linear circular rail (520). The column assembly (400) is disposed on the sliding frame base plate (530). The sliding frame base plate drive mechanism (540) is used to drive the sliding frame base plate (530) to slide along the linear circular rail (520).

3. The X-ray imaging device according to claim 2, characterized in that, The sliding frame base plate drive mechanism (540) includes a motor mounting bracket (541), a geared motor (542), a synchronous belt tensioning mechanism (543), and a synchronous belt (544). The motor mounting bracket (541) is located at one end of the track frame (510), the geared motor (542) is located on the motor mounting bracket (541), the synchronous belt tensioning mechanism (543) is located at the other end of the track frame (510), and one end of the synchronous belt (544) is connected to one side of the sliding frame base plate (530), and the other end passes around the geared motor (542) and the synchronous belt tensioning mechanism (543) and is connected to the other side of the sliding frame base plate (530).

4. The X-ray imaging device according to claim 3, characterized in that, The sliding frame base plate drive mechanism (540) also includes a permanent magnet electromagnetic clutch (545), which is mounted on the geared motor (542). When the permanent magnet electromagnetic clutch (545) is energized, the geared motor (542) loses its self-locking function.

5. An X-ray imaging device according to claim 3, characterized in that, The sliding frame base plate drive mechanism (540) also includes a pull wire displacement sensor (546). The pull wire of the pull wire displacement sensor (546) is connected to the sliding frame base plate (530). When the sliding frame base plate (530) moves, it drives the pull wire of the pull wire displacement sensor (546) to move. The pull wire displacement sensor (546) can detect the moving position of the sliding frame base plate (530).

6. An X-ray imaging device according to claim 3, characterized in that, The sliding frame base plate drive mechanism (540) also includes a limit switch pressure plate (547) and a limit switch (548). The limit switch pressure plate (547) is disposed on the track frame (510), and the limit switch (548) is disposed on the sliding frame base plate (530). The limit switch (548) is attached to the limit switch pressure plate (547).

7. An X-ray imaging device according to claim 3, characterized in that, The column assembly (400) and the sliding frame base plate (530) are connected by a rotation positioning mechanism (550), which is used to rotate or fix the column assembly (400).

8. An X-ray imaging device according to claim 7, characterized in that, The rotary positioning mechanism (550) includes a slewing bearing (551), a rotary positioning plate (552), a first positioning pin (553), a second positioning pin (554), a hinge seat (555), a hinge plate (556), a second return spring (557), and a third return spring (558). The inner ring of the slewing bearing (551) is fixedly mounted on the sliding frame base plate (530), and the rotary positioning plate (552) is mounted on the outer ring of the slewing bearing (551). The column assembly (400) is mounted on the rotary positioning plate (552), which has several positioning holes (552a). The hinge seat (555) is mounted on the sliding frame base plate (530), and the hinge plate (556) is hinged to the hinge seat (555). One end of the first positioning pin (553) is hinged to the middle of the hinge plate (556), and the other end passes through the sliding frame base plate (530) and is inserted into the positioning hole (552a). One end of the second positioning pin (554) passes through the sliding frame base plate (530) and abuts against one end of the hinge plate (556). The other end of the second positioning pin (554) is provided with a pedal. The second return spring (557) is sleeved on the first positioning pin (553). The second return spring (557) drives the first positioning pin (553) away from the rotating positioning plate (552). The third return spring (558) is sleeved on the second positioning pin (554). The third return spring (558) drives the second positioning pin (554) away from the hinge plate (556).

Images