Scanning bracket for medical imaging system

Abstract

The present invention provides a scanning support for a medical imaging system, the scanning support comprising a bottom support frame and an inclined support frame connected to each other, the inclined support frame being able to tilt relative to the bottom support frame. The scanning support further comprises a locking mechanism connected between the bottom support frame and the inclined support frame, the locking mechanism being in an unlocked state when the inclined support frame is tilted relative to the bottom support frame; and the locking mechanism being in a locked state when the inclined support frame is stationary relative to the bottom support frame, so as to prevent the inclined support frame from moving relative to the bottom support frame.

Description

Technical Field

[0001] The invention relates to the field of medical imaging, and in particular to a scanning support of a medical imaging system. Background Art

[0002] A medical imaging system, such as a computed tomography (CT) system, has a scanning support. The scanning support generally includes a base and a rotatable component disposed on the base. The rotatable component is provided with imaging components such as an X-ray tube and a detector. These components are driven to rotate at high speed to achieve three-dimensional imaging of an object in a scanning cavity located in the middle of the rotatable component.

[0003] With the continuous development of imaging technology, in some use cases, the rotatable component also needs to be able to tilt, for example, to adapt to special imaging angles and / or reduce the radiation dose applied to the object. Therefore, the rotatable component needs to be rotated at high speed in a tilted state to realize the imaging process. At present, when the rotating component rotates, the vibration amplitude of the rotating component on the scanning bracket with a tilt function limits the further increase of the rotation speed. Higher rotation speeds help diagnose more diseases and reduce the X-ray dose received by patients. Summary of the invention

[0004] One object of the present invention is to provide a new scanning support for a medical imaging system, so that when a rotating part rotates on the scanning support with a tilting function, the rotating part has a lower vibration value, better stability, and better image quality. Or, under the same image quality, the rotating part rotates faster on the scanning support with a tilting function.

[0005] An exemplary embodiment of the present invention provides a scanning support for a medical imaging system, the scanning support comprising a bottom support frame and an inclined support frame connected to each other, the inclined support frame being able to tilt relative to the bottom support frame. The scanning support further comprises a locking mechanism connected between the bottom support frame and the inclined support frame, the locking mechanism being in an unlocked state when the inclined support frame is tilted relative to the bottom support frame; and the locking mechanism being in a locked state when the inclined support frame is stationary relative to the bottom support frame, so as to prevent the inclined support frame from moving relative to the bottom support frame.

[0006] Other features and aspects will become apparent from the following detailed description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention may be better understood by describing exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0008] Figure 1 is a schematic structural diagram of a medical imaging system according to an embodiment;

[0009] Figure 2 , Figure 3 A scanning support of a medical imaging system according to a first embodiment of the present invention is shown;

[0010] Figure 4 Shows Figure 2 A locking mechanism of a scanning support in the embodiment of the present invention;

[0011] Figure 5 for Figure 4 A schematic diagram of the structure of the locking portion in FIG.

[0012] Figure 6 , Figure 7 Schematically shows Figure 4 The joint in the

[0013] Figure 8 A diagram schematically shows a state in which a locking tongue of an engaging portion is engaged with a locking slot of a locking portion;

[0014] Fig. 9 Shows Figure 4 A cross-sectional view of the locking mechanism in FIG.

[0015] Fig.10 Shows Figure 4 The support body in

[0016] Fig.11 Shows Fig.10 The matching structure of the locking block and the joint portion after the upper support body is removed;

[0017] Fig.12 Shows Fig.11 The lower support body in;

[0018] Fig.13 , Fig.15 Both show Figure 4 A locking block driving mechanism;

[0019] Fig.14 Shows Fig.13 A cross-sectional view of the locking block driving mechanism in FIG.

[0020] Fig.16 Shows Fig.15 A cross-sectional view of the locking block driving mechanism in FIG.

[0021] Fig.17 Shows Fig.13 The cover in the

[0022] Fig.18 Out Fig.11 A wedge-shaped block of a locking block;

[0023] Fig.19 Shows Fig.13 The valve stem in

[0024] Fig. 20 A connection method of a wedge block and a valve stem according to an embodiment is shown;

[0025] Fig.21 and 22 The states of the locking block clamping the joint portion under different situations of mechanical errors are respectively shown;

[0026] Fig.23 , which shows the locking mechanism of the scanning support of the second embodiment;

[0027] Fig.24 Shows Fig.23 The decomposition structure of the locking mechanism in;

[0028] Fig.25 Shows Fig.23 The part after removing the shielding shell;

[0029] Fig.26 The movable magnetic core and the main electromagnetic assembly and the secondary electromagnetic assembly are shown in a state when they are attracted;

[0030] Fig. 27 and Fig.28 Both show Fig.23 The main electromagnetic component in;

[0031] Fig.29 Shows Fig. 27 Example structure of the electromagnetic unit in;

[0032] Fig.30 Shows Fig.29 The decomposed structure of the electromagnetic unit in . DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention will be described below. It should be noted that in the specific description of these embodiments, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present invention, some changes such as design, manufacturing or production based on the technical content disclosed in this disclosure are just conventional technical means, and should not be understood as insufficient content of this disclosure.

[0034] Unless otherwise defined, the technical or scientific terms used in the claims and the specification shall have the usual meaning understood by persons with ordinary skills in the technical field to which the invention belongs. The words "first", "second" and similar words used in the patent application specification and the claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. "Include" or "comprises" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalent elements, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0035] Figure 1 FIG. 1 is a schematic diagram of a medical imaging system according to an embodiment of the present invention. As an example, the medical imaging system is a computed tomography (CT) system. Figure 1 As shown, the medical imaging system includes a scanning support, which includes a supporting portion 110 and a rotating portion 120. The rotating portion 120 is provided with a scanning cavity 130, which is used to accommodate an object 101 to be imaged. In one embodiment, the part to be imaged of the object 101 can be positioned in the scanning cavity 130 through a movable inspection table 900. An X-ray source 140 and a detector 150 are provided on the rotating portion 120, and the X-ray source 140 and the detector 150 are relatively arranged on both sides of the scanning cavity 130. The X-ray source 140 is used to project an X-ray beam, which forms an attenuated X-ray beam after penetrating the object 101. In one embodiment, the detector 150 receives the attenuated X-ray beam and converts it into simulated image data.

[0036] In one embodiment, the rotating portion 120 can rotate at a high speed so that the X-ray source 140 projects X-ray beams at multiple angles, so that the generated image data has different viewing angles.

[0037] In one embodiment, the rotating portion 120 can also be tilted to meet specific imaging requirements, such as a smaller radiation dose, a better radiation incident angle for the object 101, etc. In one example, the supporting portion 110 of the scanning support can include a tiltable portion, and the rotating portion 120 is configured to be tilted along with the tiltable portion. For example, the rotating portion 120 can be tilted so that the central axis of the scanning cavity 130 forms an angle with the horizontal direction.

[0038] The medical imaging system may further include a control mechanism 160, which includes, for example, a controller 161 for controlling the rotation speed / rotation position of the rotating part 120, which may be specifically used to control the working state of the motor of the rotating part 120. The control mechanism 160 may also include a controller 162 for controlling the movement / lifting of the examination bed 300, a controller 163 for controlling the working state of the X-ray source 110, and a controller 164 for controlling the tilting of the above-mentioned tiltable part of the support part 110 and the tilting of the rotating part 120. Further, the control mechanism 160 may also include a controller 166 for controlling the locking and unlocking of the tiltable part of the support part 110. The above-mentioned controllers may be integrated together or separately provided, and the above-mentioned various controls may be implemented by responding to the operation instructions input by the operator via the operation console.

[0039] The medical imaging system may further include a data acquisition system 170 for sampling and digitizing the analog image data.

[0040] The medical imaging system may further include a computing device 180, which may be used to process the image data sampled and digitized by the data acquisition system 170. In one example, the computing device 180 stores the image data in a storage device such as a mass storage device. The mass storage device may include a hard disk drive, a floppy disk drive, a compact disk read / write (CD-R / W) drive, a digital versatile disk (DVD) drive, a flash drive, and / or a solid-state storage device, etc.

[0041] In addition, the computing device 180 is also used to provide instructions and parameters to the data acquisition system 170 and part or all of the controllers of the control mechanism 160 to control system operations, such as data acquisition and / or processing.

[0042] The medical imaging system may further include an image reconstructor 190, which reconstructs an image of the to-be-imaged part of the object 101 by using a suitable image reconstruction method based on the digitized image data. Figure 1 The image reconstructor 190 is illustrated in illustrative embodiments as a separate entity, but in some embodiments, the image reconstructor 190 may form part of the computing device 180 .

[0043] The scanning support of the first embodiment

[0044] Figure 2 , Figure 3 FIG. 2 shows a scanning support of a medical imaging system according to a first embodiment of the present invention. Figure 2 , Figure 3As shown, the scanning support comprises a bottom support frame 10 and a tilting support frame 20 connected to each other. Similar to the tiltable portion of the above-mentioned support portion 110, the tilting support frame 20 can be tilted relative to the bottom support frame 10, and the rotating portion 120 of the medical imaging system is attached to the tilting support frame 20 and can be tilted together with the tilting support frame 20.

[0045] In one embodiment, the bottom support frame 10 includes a base 11 and two opposite side portions 12 connected to the base. The two ends of the inclined support frame 20 can be respectively pivoted on the two side portions 12 of the bottom support frame 10 and suspended relative to the base. In this way, the inclined support frame 20 can be tilted and rotated relative to the bottom support frame 10.

[0046] In one usage scenario, the rotating part 120 needs to rotate in a tilted state. At this time, after controlling the tilt support frame 20 to tilt to a certain angle to the required position, the tilt support frame 20 is locked at this position, and then the rotating part 120 can be controlled to rotate. If the rotating part needs to be restored to the initial position (for example, the central axis of the scanning cavity is parallel to the horizontal direction), the rotating part 120 is first controlled to stop rotating, the tilt support frame 20 is unlocked, and then the tilt support frame 20 is reversely rotated to the initial position.

[0047] In an existing embodiment, the bottom support frame 10 and the tilting support frame 20 can be connected by a rotating shaft, and the tilting support frame 20 can be driven to tilt to a desired angle by extending or shortening the telescopic rod 80 connected between the bottom support frame 10 and the tilting support frame 20. The telescopic rod described here can be a telescopic hydraulic cylinder, an electric push rod or other components with a telescopic function. The telescopic rod 80 can only be adapted to the change in the relative position of the bottom support frame 10 and the tilting support frame 10 to be telescopic. After the tilting stops, the telescopic rod 80 can play a certain supporting role. Since the tilting support frame 20 is not completely locked relative to the bottom support frame 10, the rotating part 120 still has obvious vibration during high-speed rotation.

[0048] The scanning support of the embodiment of the present invention also includes a locking mechanism 16 connected between the bottom support frame 10 and the tilting support frame 20. When the tilting support frame 20 is tilted relative to the bottom support frame 10, the locking mechanism is in an unlocked state; when the tilting support frame 20 is stationary relative to the bottom support frame 10, the locking mechanism is in a locked state to prevent the tilting support frame from moving relative to the bottom support frame. The locking mechanism is used to add a fixed point that can be locked or unlocked between the bottom support frame 10 and the tilting support frame 20. The tilting support frame 20 can stop at any position within a certain tilt range and be locked and stationary by the locking mechanism. When the locking mechanism is locked, the fixed point between the bottom support frame and the tilting support frame is increased, so that the stability of the scanning support is higher.

[0049] The number of the locking mechanisms 16 may be one or more. For example, in order to achieve locking stability, a plurality of locking mechanisms 16 may be disposed at different positions of the bottom support frame 10 and the inclined support frame 20 .

[0050] Figure 4 The locking mechanism 16 of the scanning support according to the embodiment of the present invention is shown, which includes a locking portion 30, a coupling portion 40 and a driving portion 50.

[0051] Combination Figures 2 to 4 The locking part 30 is arranged on the tilting support frame 20 according to the tilting track of the tilting support frame 20, and can move synchronously with the tilting support frame 20. Specifically, the effective size (such as length, angle, area, etc.) of the locking part 30 is related to the maximum tilting range of the tilting support frame 20. For example, when the tilting support frame 20 is tilted at the maximum angle, the size of the locking part 30 is large enough to lock the tilting support frame 20; more specifically, the shape of the effective part of the locking part 30 is related to the movement track of the tilting support frame 20. For example, the effective part of the locking part 30 is formed in an arc shape, and the arc is adapted to the arc of the tilting track of the tilting support frame 20, so that when the tilting support frame 20 is at any position within its tilting range, the locking part 30 can lock the tilting support frame 20. For example, the tilting track of the tilting support frame 20 is a circular arc, and the locking part 30 is arranged on the tilting support frame 20 according to the tilting track, extending to form another circular arc concentric with the circular arc.

[0052] The engaging portion 40 is provided on the bottom support frame 10, and is used to engage with the locking portion 30 and lock the tilt support frame 20 relative to the bottom support frame 10 when the locking portion 40 moves from the unlocked initial position to the locked position, or to engage with the locking portion 30 and the tilt support frame 20 when the locking position returns to the initial position. The above locking and unlocking can be achieved when the tilt support frame 20 is tilted at any position.

[0053] The driver 50 is used to drive the engaging portion 40 to move to a locked position or return to an unlocked initial position.

[0054] In this embodiment, the above-mentioned joint part 40 and the driving part 50 can be installed on the bottom support frame 10 through a fixing plate 70. For example, the fixing plate 70 is fixed to the bottom support frame 10 by screws or other installation methods and carries the above-mentioned joint part 40 and the driving part 50 thereon.

[0055] The structure, connection mode and working principle of the locking portion 30 , the engaging portion 40 and the driving portion 50 will be further described below in conjunction with the accompanying drawings.

[0056] Figure 5 for Figure 4 The structural diagram of the locking portion 30 in FIG. Figure 5The locking portion 30 includes a body 31, and a slot 32 extending in an arc shape is formed on the body 31. In one embodiment, the body 31 can be made of a rigid material and fixedly mounted on the tilting support frame 20 by screws or other mounting components. In other embodiments, the tilting support frame 20 itself can serve as the body of the locking portion 30, that is, the slot 32 can be opened on the tilting support frame 20 according to actual conditions. Figure 5 A cross-sectional view of the card slot 32 of the locking portion 30 is further schematically shown, in which the shape of the card slot 32 is shown. The above-mentioned card slot 32 can be used to cooperate with the joint portion set on the inclined support frame 20 to lock the inclined support frame 20 relative to the bottom support frame 10, which will be described in detail below in conjunction with the specific structure of the joint portion.

[0057] refer to Figure 6 and Figure 7 , schematically showing Figure 4 The engaging portion 40 includes a locking tongue 41 of the engaging portion 40 which can rotate from an initial position to a locking position to contact the inner wall of the card slot 32.

[0058] Combination Figures 5 to 8 The card slot 32 is connected to the outside through an opening 33, the width W1 of the opening 33 is smaller than the width W2 of the card slot 32, the locking tongue 41 passes through the opening 33 and is arranged in the card slot 32, and the locking tongue 41 has a longitudinal length L1 and a transverse length L2. The transverse length L2 of the locking tongue 41 is smaller than the width W1 of the opening so that the locking tongue 1 can be placed in the card slot 32, and the longitudinal length L1 of the locking tongue 41 is greater than the width W2 of the card slot 32 so that the locking tongue 41 can be locked in the card slot 32 at the locking position. The longitudinal length L1 of the locking tongue 41 can also be greater than the width of the card slot to further achieve locking stability. For example, in one embodiment, when the lock tongue 41 is in the initial position, it is longitudinally placed in the card slot 32 (the longitudinal direction of the lock tongue 41 is roughly parallel to the extension direction of the card slot 32), and a gap is formed between it and the inner wall of the card slot 32; when the lock tongue 41 is in the locked position, it is placed in the card slot 32 at a certain angle (the longitudinal direction of the lock tongue 41 has a certain angle with the extension direction of the card slot 32), and it conflicts with the inner wall of the card slot 32. Further, the lock tongue 41 has two wedge-shaped ends 410 opposite to each other in the longitudinal direction, and each wedge-shaped end 410 is provided with at least one pair of wedge-shaped surfaces opposite to each other in the vertical direction, and the vertical direction is perpendicular to the transverse and longitudinal directions of the lock tongue 41. The card slot 32 includes at least one pair of inner walls that conflict with the at least one pair of wedge-shaped surfaces.

[0059] For example, in Figure 6 The four wedge-shaped surfaces 411, 412, 413 and 414 on one side of the locking tongue 41 are marked. Figure 7The four wedge-shaped surfaces 415, 416, 417 and 418 on the other side of the locking tongue 41 are marked in the figure. The wedge-shaped end 410 at the upper end has two pairs of wedge-shaped surfaces: 411 and 415, 412 and 416, and the wedge-shaped end 410 at the lower end has two pairs of wedge-shaped surfaces: 413 and 417, 414 and 418. An intermediate transition plane is connected between each two adjacent wedge-shaped surfaces. For the wedge-shaped body 410 at the upper end, the above-mentioned wedge-shaped surfaces 411, 412, 415, 416 and the corresponding four intermediate planes are connected to form an octahedron. Since at least four faces are wedge-shaped faces, the octahedron is formed into an octahedral wedge-shaped body with a small top and a large bottom. The wedge-shaped body 410 at the lower end can be a structure roughly symmetrical with the above-mentioned wedge-shaped body 410 at the upper end, and no further description is given.

[0060] refer to Figure 5 The locking portion 30 in the embodiment of the present invention, the card slot 32 cooperates with the two wedge-shaped ends 410 of the locking tongue 41, and is roughly formed into an octahedral shape with an opening (33), which has inner walls 321, 322, 323 and 324.

[0061] Figure 8 The schematic diagram shows the state that the locking tongue 41 is engaged with the card slot 32, wherein: Figure 8 The left side shows the state where the locking tongue 41 rotates clockwise to engage with the card slot 32. Figure 8 The right side shows the state where the locking tongue 41 rotates counterclockwise to engage with the card slot 32. Figure 5-Figure 8 As shown, the inner wall 321 of the slot 32 can be used to contact the wedge surface 411 or 414 (the inner wall 321 can contact the wedge surface 411 when the lock tongue 41 rotates clockwise, and the inner wall 321 can contact the wedge surface 414 when it rotates counterclockwise). Similarly, the inner wall 322 of the slot 32 can be used to contact the wedge surface 415 or 418, the inner wall 323 of the slot 32 can be used to contact the wedge surface 412 or 413, and the inner wall 324 of the slot 32 can be used to contact the wedge surface 416 or 417.

[0062] The above-mentioned engagement method makes it possible for the wear between the locking tongue 41 and the inner wall of the slot 32 to have little effect on the engagement degree of the two. For example, when the engagement wedge surface of the locking tongue and the inner wall of the slot are worn, the engagement portion 40 is driven by the driving portion 50 to rotate a larger angle so that the engagement portion and the locking portion are clamped.

[0063] The above-mentioned wedge-shaped end 410 and wedge-shaped surface may also have at least one of the following other characteristics to enable the locking tongue 41 to more tightly contact the inner wall of the slot 32: the length of each wedge-shaped end 410 in its vertical direction gradually narrows along its longitudinal direction, for example, the cross-section of the above-mentioned two wedge-shaped ends 410 along the XY plane (X and Y are the vertical direction and longitudinal direction of the locking tongue 40, respectively) is roughly trapezoidal; each wedge-shaped surface is arranged at the edge of the wedge-shaped end, for example, the wedge-shaped surfaces 411-418 are respectively arranged at the corners of the locking tongue 41; the thickness of each wedge-shaped end in its transverse direction gradually thickens from one edge of the wedge-shaped surface thereon to the other edge, for example, the cross-section of each wedge-shaped end along the YZ plane (Z is the transverse direction of the locking tongue 41) at its pair of wedge-shaped surfaces 411 and 415 is trapezoidal.

[0064] The engaging portion 40 further includes a rotating shaft 42, one end of which forms the locking tongue 41. The driving portion 50 may include a motor, which may be connected to the other end of the rotating shaft 42 to rotate the engaging portion 40 to an initial position or a locking position. Specifically, the motor drives the locking tongue 41 to rotate to engage with or be released from the locking slot 32 of the locking portion 30 by controlling the rotating shaft 42.

[0065] The scanning support of this embodiment may also include a locking controller for providing power to the motor to rotate or maintain torque, and further for providing power to increase hydraulic pressure to a locking block driving mechanism, which will be described later. The locking controller may be connected to Figure 1 The controller 166 shown is or is a portion of the controller 166 . In one application scenario, when the tilting support frame 20 is in a non-tilted state, the control mechanism of the medical imaging system can respond to a tilting control signal (for example, sent by the controller 164) to control the rotation of the tilting support frame 20 to tilt it to a specific angle; after the tilting is completed, the motor can respond to a locking control signal (for example, sent by a locking controller or controller 166) to rotate the coupling 40, and drive the locking tongue 41 to rotate to engage with the card slot 32 to lock the bottom support frame 10 and the tilting support frame 20; after firmly locking, the control mechanism of the medical imaging system can respond to a rotation control signal (for example, sent by the controller 161) to control the rotating part of the scanning support to rotate at a high speed; after stopping the rotation of the rotating part, the motor responds to an unlocking control signal (for example, sent by the locking controller or controller 166) to rotate the coupling 40 in the opposite direction, and drive the locking tongue 41 to rotate back to the initial position, completing the unlocking of the bottom support frame 10 and the tilting support frame 20; after unlocking, the control mechanism of the medical imaging system can respond to a scanning support reset signal (for example, sent by the controller 164) to control the tilting of the tilting support frame 20.

[0066] Furthermore, the locking mechanism 16 of the scanning support of this embodiment further includes a fixing portion 60 disposed on the bottom support frame 10, which clamps the rotating shaft 42 to prevent the joint from rotating and moving axially when the tilting support frame 20 is in a locked state. Figure 7 , 8 As shown, the rotating shaft 42 includes a shaft rod 421 and a shaft disc 422 extending radially outward from the shaft rod 421. The rotating shaft 42 and / or the shaft disc 422 can be used to cooperate with the fixing portion 60 to prevent the engaging portion 40 from rotating and axially moving when the tilt support frame 20 is in a locked state. In one embodiment, the motor of the driving portion 50 maintains the motor torque in the locked position until the engaging portion 40 is clamped by the fixing portion 60.

[0067] The structure and working mode of the fixing part are described in detail below with reference to the accompanying drawings.

[0068] Figure 4 The locking mechanism 16 shown in the figure further includes the fixing portion 60. To facilitate observation of the internal structure of the clamping portion 60: Fig. 9 Shows Figure 4 A cross-sectional view of the locking mechanism 16 in FIG. Fig.10 Shows Figure 4 The support body 61, Fig.11 Shows Fig.10 The matching structure of the locking block 63 and the joint portion 40 after the upper support body 613 is removed, Fig.12 Shows Fig.11 The lower support body 611 in.

[0069] Combination Figure 4 as well as Fig. 9 , Fig.10 The fixing part 60 includes a support body 61, a locking block 63, and a locking block driving mechanism 65. The fixing part 60 can be installed on the fixing plate 70. The support body 61 can include a lower support body 611 and an upper support body 613.

[0070] refer to Fig. 9 , Fig.11 and Fig.12 The support body 61 is provided with a groove 615 for accommodating the rotating shaft 42 and a guide groove communicating with the groove 615. The locking block 63 is at least partially disposed in the guide groove and contacts the rotating shaft 42. Fig.12 As shown in the figure, those skilled in the art should understand that the upper support body 613 can have a structure that is substantially symmetrical with the lower support body 611 to jointly accommodate at least a portion of the above-mentioned joint 40 and the locking block 63, which will not be repeated here.

[0071] Further references Fig.12The support body 61 is also provided with an opening 612 for accommodating the shaft disc 422 of the rotating shaft 42 . The guide groove is communicated with the opening 612 so that the locking block 63 accommodated therein can clamp the shaft disc 422 .

[0072] In one embodiment, the guide groove may include a first guide groove 614 and a second guide groove 618 respectively arranged on both sides of the rotating shaft 42, the first guide groove 614 includes two side walls 6141 and 6142 distributed on both sides of the opening 612, and the second guide groove includes two side walls 6181 and 6182 distributed on both sides of the opening 612.

[0073] In one embodiment, Fig. 9 , Fig.11 As shown, the locking block 63 may include two first wedge blocks 631 and 632 and two second wedge blocks 633 and 634. The two first wedge blocks 631 and 632 are partially disposed in the first guide groove 614 and are relatively located on both sides of the shaft disc 422. The two second wedge blocks 633 and 634 are partially disposed in the second guide groove 618 and are relatively located on both sides of the shaft disc 422.

[0074] In one embodiment, Fig. 9 , Fig.11 As shown, the two side walls 6141 and 6142 of the first guide groove 614 respectively form wedge-shaped spaces with the shaft disc 422 to respectively cooperate with the above-mentioned first wedge blocks 631 and 632; the two side walls 6181 and 6182 of the second guide groove 618 respectively form wedge-shaped spaces with the shaft disc 422 to respectively cooperate with the above-mentioned second wedge blocks 633 and 634. The above-mentioned two first wedge blocks 631 and 632 and the two second wedge blocks 633 and 634 can move toward the shaft rod 421 within a certain range in their respective corresponding wedge-shaped spaces. During the movement of the first wedge block and the second wedge block toward the shaft rod 421, the pressure (or friction force) on the shaft disc 422, the two side walls 6141 and 6142 of the first guide groove 614 or the two side walls 6181 and 6182 of the second guide groove 618 is gradually increased until the shaft disc 422 is clamped so that the joint 40 cannot further rotate and move axially. As the first wedge block and the second wedge block move away from the shaft rod 421 , the pressure (or friction) on the shaft disc 422 and the side walls 6141 , 6142 , 6181 , 6182 is gradually reduced until the joint 40 is released, so that the joint 40 can rotate and move axially.

[0075] refer to Figure 4 , Fig. 9The lock block driving mechanism 65 is used to apply a driving force to the lock block 63 so that the lock block 63 clamps the joint portion 40. In one use scenario, the lock block driving mechanism 65 can respond to the above-mentioned rotation control signal (or other signals that can indicate that the tilt support frame 20 is to be locked) to drive the lock block 63 to clamp the joint portion 40 to prevent it from rotating and moving; the lock block driving mechanism 65 can also retract the lock block 63 to release the joint portion 40 when the unlocking control signal is received, so that the driver 50 can drive the joint portion 40 to rotate between the initial position and the locked position.

[0076] Fig.13 , Fig.15 Both show Figure 4 The locking block driving mechanism 65, Fig.14 Shows Fig.13 A cross-sectional view of the locking block driving mechanism 65 in FIG. Fig.16 Shows Fig.15 A cross-sectional view of the locking block driving mechanism 65 in FIG. Figure 4 , Fig. 9 and Figure 13-16 The lock block driving mechanism 65 includes a hydraulic assembly, which includes a housing 655, a valve stem, and an oil nozzle 656. A hydraulic chamber is formed in the housing 655, one end of the valve stem is arranged in the hydraulic chamber, and the other end extends out of the housing 655 to connect with the lock block 63. The oil nozzle 656 is connected to the hydraulic chamber, and is used to inject liquid into the hydraulic chamber to push the valve stem to drive the lock block 63 to move so as to apply pressure to the lock block 63, or to discharge liquid from the hydraulic chamber and pull back the valve stem under the rebound force of the elastic seal 661 to drive the lock block 63 to retract so as to release the pressure of the lock block 63 on the joint 40.

[0077] In one embodiment, a hydraulic device is already provided on the scanning support of the medical mobile device, and the oil nozzle 656 can be connected to the existing hydraulic device, so that liquid can be injected into the hydraulic cavity.

[0078] In this embodiment, the hydraulic cavity may include a first cavity 657 and a second cavity 659, which are respectively arranged at two ends of the housing 655, and a hydraulic pipeline 658 connecting the first cavity 657 and the second cavity 659 is also arranged in the housing 655. In one embodiment, the first cavity 657 and the second cavity 659 have two independent chambers respectively, and the four chambers are connected so that the hydraulic pressures on the four valve stems are equal, so that the clamping force of the locking block 63 on the joint 40 is equal.

[0079] The valve stem includes two first valve stems 651 and two second valve stems 652. One end of each first valve stem 651 is disposed in the first cavity 657 (for example, disposed in an independent cavity of the first cavity), and one end of each second valve stem 652 is disposed in the second cavity 659 (for example, disposed in an independent cavity of the second cavity). The other ends of the two first valve stems 651 extend out of the housing 655 to be connected to the two first wedge blocks 631 and 632 respectively, and the other ends of the two second valve stems 652 extend out of the housing 655 to be connected to the two second wedge blocks 633 and 634 respectively.

[0080] Furthermore, the two first valve stems 651 and the two second valve stems 652 are placed separately on the housing 655, for example, separated by a partition 660, to avoid mutual interference.

[0081] Furthermore, an elastic sealing member 661 is provided between each first valve stem 651 , each second valve stem 652 and the housing 655 , which can achieve sealing on the one hand and guide / limit the movement direction of the corresponding valve stem on the other hand.

[0082] Furthermore, the shell 655 is provided with two openings that respectively connect the first cavity 657 and the second cavity 659 to the outside, and the shell 655 is also connected with two blocking covers 6551 and 6552, which are respectively used to seal the two openings of the shell 655. In this way, it is convenient to assemble, disassemble and overhaul the components in the shell 655.

[0083] refer to Fig.17 , which shows Fig.13 The blocking covers 6551 and 6552 in the housing 655 are each provided with a limiting protrusion 6553 for limiting the corresponding two first valve stems or two second valve stems to avoid excessive recovery movement of the first valve stem 651 or the second valve stem 652 after the pressure is released.

[0084] The structure of the wedge block and valve stem and the connection method thereof are described below in conjunction with the accompanying drawings.

[0085] refer to Fig.18 , further showing Fig.11 The wedge blocks of the lock block 63 in the embodiment of the present invention each include a first end 671 and a second end 672 of the wedge block. The first end 671 of the wedge block can be arranged in the corresponding wedge space to match the rotating disk 422, and the second end 672 is used to connect the corresponding valve stem. Fig.18As shown in the left figure of , in one embodiment, the first end 671 of the wedge block includes a curved surface 6771 and an inclined surface 6772, the inclined surface 6771 is used to match with a side wall of the corresponding guide groove, and the curved surface 6772 is used to match with the rotating disk 422. In other words, the curved surface of the side of the rotating disk 422 is consistent with the curved surface of the curved surface 6772. Fig.18 As shown in the right side figure, in another embodiment, the first end 671 of the wedge block includes two opposite surfaces 6773 and 6774, wherein the surface 6773 is an inclined surface for cooperating with a side wall of the corresponding guide groove, and the surface 6774 is for cooperating with the turntable 422. The surface 6774 cooperating with the turntable 422 may not be inclined. In other words, the side surface of the turntable 422 and the surface 6774 are surfaces perpendicular to the axial direction of the joint 40.

[0086] Furthermore, the wedge block first end 671 of each wedge block also includes a limiting bottom surface 6775, which is used to be opposite to a wall of the guide groove in the movement direction of the wedge block to limit the position during the return movement.

[0087] refer to Fig.19 , further showing Fig.13 The valve stems 651 and 652 in the embodiment include a first end 681 and a second end 682. The first end 681 is used to be arranged in the cavity 657, 659 of the corresponding shell 655 of the hydraulic cavity so as to be driven to make reciprocating motion. The first end 681 is provided with a square limit block to prevent the valve stem from rotating freely by utilizing the square's characteristic of being difficult to rotate.

[0088] Continue to refer Fig. 20 , shows a connection method of an embodiment of wedge blocks 631, 632, 633, 634 and valve stems 651, 652. In this embodiment, the valve stem can be movably connected to the locking block 63 so that the locking block 63 has a certain movable margin relative to the valve stem. In this way, the locking block 63 is prevented from reducing the clamping efficiency due to mechanical errors during the clamping joint 40.

[0089] For example, in one embodiment, Fig.18 The second end 672 of the wedge block is formed with a T-shaped protrusion 6721. Fig.19 The second end 682 of the valve stem shown is formed with a T-slot 6821, and the above-mentioned T-shaped protrusion 6721 and the T-slot 6821 are arranged in cooperation with each other, and there can be a certain gap between the T-shaped protrusion 6721 and the wall of the T-slot 6821 so that the T-shaped protrusion 6721 can have a certain activity space at different angles while being able to achieve a stable connection, and can slide relatively along the length direction of the T-slot to adapt to the position change of the locking block along the T-slot direction of the valve stem during the clamping process and the releasing process.

[0090] Through the structure of the wedge block and the connection method with the valve stem, even if there may be mechanical errors or other influences, in the process of clamping the joint 40 by the locking block 63, the wedge block can be flexibly controlled to ensure effective clamping of the joint 40. This advantage will be achieved through Fig. 9 , Figure 21-22 The example shown is used for illustration.

[0091] The wear of the side wall of the guide groove and the inclined surface of the locking block can cause the locking block to push out a longer stroke of the valve stem of the locking block driving mechanism to clamp the shaft disc. Fig. 9 The figure shows the state of the locking block 63 clamping the joint portion 40 in an ideal state. Under the same locking block driving force, it can be seen that the distribution of the four wedge blocks is relatively symmetrical. Fig.21 and 22 The figures show the state of the locking block 63 clamping the joint 40 under different mechanical errors. It can be seen that: Fig.21 The two wedge blocks on the right side are closer to the shaft 421 than the two on the left side. This is because when the tilt support frame 20 is at different tilt angles, the slot 32 of the locking portion 30 moves inward due to the error, making the wedge space on the right side larger. However, due to the clamping method of the wedge structure and the movable connection method between the wedge block and the valve stem, such an error has little effect on the clamping efficiency. Fig. 22 The two wedge-shaped blocks on the left side are obviously closer to the shaft 421 than the two on the right side.

[0092] The scanning support of this embodiment may also include a sensor for sensing the locking state of the tilt support frame 20. Based on the sensing signal of the sensor, the control mechanism may generate a corresponding control signal. For example, when sensing that the tilt support frame 20 is locked, a rotation control signal may be generated, and when sensing that the tilt support frame 20 is unlocked, a tilt control signal may be generated. The above-mentioned sensors may be multiple and may be arranged, for example, on the inner wall of the slot 32, on the shaft disc 422 of the joint 40, or on the side wall of the guide slot to generate a sensing signal when sensing pressure.

[0093] The scanning support of the second embodiment

[0094] The scanning support of this embodiment is similar to the scanning support of the first embodiment in structure, connection mode, and working mode. For example, similar to Figure 2 , Figure 3 The bottom support frame 10 and the tilted support frame 20 in the scanning support of this embodiment may also include a bottom support frame 10 and a tilted support frame 20 connected to each other, and the tilted support frame 20 can be tilted relative to the bottom support frame 10. The scanning support of the embodiment of the present invention also includes a locking mechanism.

[0095] refer to Fig.23 , which shows the locking mechanism of this embodiment, the locking mechanism includes a main electromagnetic assembly 300 of a locking part 30, a coupling part 400 and a driving part 500, and may further include a fixing part 600 and a shielding shell 800.

[0096] Combination Figure 2 , 3 as well as Fig.23 , the main electromagnetic assembly 300 is arranged on the tilting support frame 20 according to the tilting track of the tilting support frame 20. Specifically, the effective size of the main electromagnetic assembly 300 is related to the maximum tilting range of the tilting support frame 20. For example, when the tilting support frame 20 is tilted at the maximum angle, the main electromagnetic assembly 300 is of sufficient size to lock the tilting support frame 20; more specifically, the shape of the effective part of the main electromagnetic assembly 300 is related to the motion track of the tilting support frame 20. For example, the effective part of the main electromagnetic assembly 300 is formed in an arc shape, and the arc is adapted to the arc of the tilting track of the tilting support frame 20, so that when the tilting support frame 20 is at any position within its tilting range, the locking mechanism can lock the tilting support frame 20. For example, the tilting track of the tilting support frame 20 is a circular arc, and the main electromagnetic assembly 300 is arranged on the tilting support frame 20 according to the tilting track, extending to form another circular arc concentric with the circular arc.

[0097] The engaging portion 400 is disposed on the bottom support frame 10 , and is used to engage with the main electromagnetic assembly 300 at any tilted position and lock the tilt support frame 20 relative to the bottom support frame 10 , or to unlock the main electromagnetic assembly 300 from the tilt support frame 20 .

[0098] The driver 500 is used to move the engaging portion 400 to a locked position or to return the engaging portion 400 to an initial non-locked position.

[0099] In this embodiment, the joint part 400 can be installed on the bottom support frame through a fixing plate 700. For example, the fixing plate 700 is fixed on the bottom support frame through screws or other fixing methods and carries the joint part 400 thereon.

[0100] The structure, connection method and working principle of the main electromagnetic assembly 300, the engaging part 400 and the driving part 500 of the locking part 30 will be further described below in conjunction with the accompanying drawings.

[0101] Fig.24 Shows Fig.23 The decomposition structure of the locking mechanism in Fig.25 The joint 40 is shown in Fig.23 The part covered by the shielding shell, combined with Figure 23-25As shown, the locking portion 300 includes an electromagnetic unit 310 extending in an arc shape. In other embodiments, the main electromagnetic assembly 300 can also be configured as a surface, and the size of the surface is determined to cover the required arc track.

[0102] The joint 400 is a movable magnetic core 450 , one end of which is connected to the fixed plate 700 via an elastic component 490 . For example, the elastic component can be a tension spring, one end of which is fixed to the fixed plate 700 and the other end is connected to the movable magnetic core 450 .

[0103] The driving unit 500 is used to control the movable magnetic core 450 to move toward the main electromagnetic assembly 300 so that the movable magnetic core 450 is attracted to the main electromagnetic assembly 300. At this time, the elastic assembly 490 is stretched. Specifically, the driving unit 500 includes a power controller (not shown in the figure) electrically connected to the main electromagnetic assembly 300. In one usage scenario, the power controller is used to provide current to the main electromagnetic assembly so that the main electromagnetic assembly 300 attracts the movable magnetic core 450. For example, the power controller can respond to a locking control signal to cause the main electromagnetic assembly 300 to generate suction on the movable magnetic core 450 opposite to it. The movable magnetic core 450 is driven by the suction force to overcome the pulling force of the elastic assembly 490 and move toward the main electromagnetic assembly 300 to a locked position and attract the main electromagnetic assembly 300. When the power controller stops supplying power to the main electromagnetic assembly, the main electromagnetic assembly 300 releases the movable magnetic core 450. For example, the power controller can respond to an unlocking control signal to cause the main electromagnetic assembly 300 to lose suction on the movable magnetic core 450, and the movable magnetic core 450 returns to its initial position under the action of the elastic assembly 490.

[0104] In one embodiment, the fixing portion 600 is disposed on the bottom support frame 10. For example, the fixing portion 600 can be disposed on the bottom support frame 10 via a fixing plate 700. The movable magnetic core 450 can be supported and guided by the fixing portion 600. For example, the fixing portion 600 of the movable magnetic core 450 only allows the movable magnetic core 450 to move in the axial direction, while preventing the movable magnetic core 450 from moving in other directions. The fixing portion 600 can further fix the movable magnetic core 450 when the movable magnetic core 450 is attracted to the main electromagnetic assembly 300 to prevent the movable magnetic core 450 from further moving. In this way, the movable magnetic core 450 can be stabilized in the locked state.

[0105] In one embodiment, the fixing portion 600 includes a secondary electromagnetic assembly 610. The movable magnetic core 450 includes a main attraction portion 420 located at one side of the main electromagnetic assembly 300 and a secondary attraction portion 430 located at the secondary electromagnetic assembly side, the main attraction portion 420 is opposite to the main electromagnetic assembly 300 so as to be attracted to the main electromagnetic assembly 300, and the secondary attraction portion 430 is opposite to the secondary electromagnetic assembly 610 so as to be attracted to the secondary electromagnetic assembly 610.

[0106] The fixing part 600 further includes an elastic soft magnetic pad 650 fixed on the secondary electromagnetic assembly 610, which is elastic when non-magnetic and is used to compensate for the gap between the secondary electromagnetic assembly 610 and the movable magnetic core 450 after the movable magnetic core 450 is attracted to the main electromagnetic assembly 300, so as to ensure that the secondary electromagnetic assembly and the movable magnetic core can be attracted reliably. The elastic soft magnetic pad 650 becomes hard when magnetic.

[0107] For example, two elastic soft magnetic pads 650 are respectively fixed on two secondary electromagnetic components 610, and are used to adapt to the changes in the gap between the secondary electromagnetic component 610 and the secondary attraction part 430 of the movable magnetic core 450 through the elastic compressible characteristics of the elastic soft magnetic pads 650 after the movable magnetic core 450 is first attracted by the main electromagnetic component 300. At the same time, the magnetism of the elastic soft magnetic pads 650 ensures that the secondary electromagnetic component 610 is in close contact and attracted with the secondary attraction part 430 of the movable magnetic core 450.

[0108] In one embodiment, the movable magnetic core 450 is roughly formed into a T-shaped structure, which includes a connecting body 401 forming the main part of the T-shaped structure, the main suction part 420 is arranged at one end of the connecting body 401, and the secondary suction part 430 is arranged at the other end of the connecting body 401, wherein the number of the secondary suction parts 430 is two, which are respectively arranged on both sides of the connecting body 401 opposite to each other.

[0109] The fixing part 600 further includes a lower support body 620 and an upper support body 680, wherein the lower support body 620 is provided with a groove 630 and two secondary electromagnetic mounting ends 640 located on both sides of the groove 630, and two secondary electromagnetic assemblies 610 are respectively embedded and mounted at one end of the two secondary electromagnetic mounting ends 640 close to the elastic assembly 490. The connecting body 401 of the movable magnetic core 450 is arranged in the groove 630, and the main suction end 420 thereon is opposite to the main electromagnetic assembly 300, and the two secondary suction parts 430 are respectively opposite to the two secondary electromagnetic assemblies 610.

[0110] Although the number of the secondary attraction parts shown in the figure is two, those skilled in the art should understand that more or larger secondary attraction parts and corresponding secondary electromagnetic components can be provided to achieve more stable attraction.

[0111] The power controller of the driving part 500 may be further electrically connected to the secondary electromagnetic assembly 610 so as to be able to attract the corresponding secondary attraction part 430 to fix the movable electromagnetic core in response to a locking control signal, or to release the movable electromagnetic core 450 in response to an unlocking control signal.

[0112] refer to Fig.26, shows the state when the movable magnetic core 450 is attracted to the main electromagnetic assembly 300 and the secondary electromagnetic assembly 610. On the contrary, the state when the movable magnetic core 450 is not attracted to the main electromagnetic assembly 300 and the secondary electromagnetic assembly 610 is shown in FIG. Fig.25 It has been shown in .

[0113] refer to Fig. 27 and Fig.28 , both show Fig.23 The main electromagnetic assembly 300, Fig.28 It also schematically shows Fig.25 The main electromagnetic assembly 300 includes a plurality of electromagnetic units 310 adjacent to each other in sequence, and these electromagnetic units 310 are arranged on a support plate 350 along an arc track, or in other words, arranged on an arc-shaped support plate 350. The support plate 350 can be fixed on the tilting support frame 20 by screws or other connection methods.

[0114] refer to Fig.29 , Fig.30 ,in Fig.29 Shows Fig.28 An example structure of the electromagnetic unit 310 in FIG. Fig.30 Shows Fig.29 The electromagnetic unit 310 in the exploded structure includes an electromagnetic unit core 320. The cross section of the electromagnetic unit core 320 is formed in an "H" shape, including a shaft and ends connected to both ends of the shaft. A coil assembly 330 is wound around the shaft of the electromagnetic unit core 320. The coil assembly 330 of any electromagnetic unit 310 can be used to receive the current sent by the power controller to control the working state of the electromagnetic unit 310. The coil assemblies 330 of the above-mentioned multiple electromagnetic units 310 can be connected in series or in parallel.

[0115] like Fig.23 As shown, the shielding portion 800 may be disposed outside the engaging portion 400 to shield at least a portion of the fixing portion 600 and the engaging portion 400 .

[0116] In the above-mentioned embodiments of the present invention, on the one hand, a locking portion is provided on a tiltable tilting support frame, and a coupling portion is provided on a relatively fixed bottom support frame, and the locking portion is provided according to the tilting trajectory of the tilting support frame, so that any position within the tilting range can engage with the coupling portion provided on the bottom support frame, so as to firmly lock the tilting support frame, avoid the rotating portion thereon from generating large vibrations when rotating at high speed, and improve the image quality of medical imaging.

[0117] On the other hand, the locking and unlocking of the tilt support frame can be achieved by the engagement or release between the lock tongue and the slot, or by the engagement or release between the electromagnetic assembly and the movable magnetic core. This not only can reliably lock the tilt support frame, but also has low manufacturing, installation and maintenance costs.

[0118] On the other hand, when locking, the locking state can be further stabilized by the fixing part, and the fixing part has good tolerance performance. The fixing part can attract the magnetic core through the same driving system, which is convenient for product design.

[0119] Some exemplary embodiments have been described above. However, it should be understood that various modifications may be made. For example, if the described techniques are performed in a different order and / or if the components in the described systems, architectures, systems, or circuits are combined in different ways and / or replaced or supplemented by other components or their equivalents, suitable results may be achieved. Accordingly, other implementations also fall within the scope of the claims.

Claims

1. A scanning support for a medical imaging system, the scanning support comprising a bottom support frame and an inclined support frame connected to each other, the inclined support frame being able to tilt relative to the bottom support frame, characterized in that: The scanning support further comprises a locking mechanism connected between the bottom support frame and the tilt support frame, wherein: During the process of the tilting support frame tilting relative to the bottom support frame, the locking mechanism is in an unlocked state; When the tilt support frame is stationary relative to the bottom support frame, the locking mechanism is in a locked state to prevent the tilt support frame from moving relative to the bottom support frame. Among them, the locking mechanism includes a locking part and a coupling part, the locking part is arranged on the inclined support frame according to the inclined trajectory of the inclined support frame and includes a main body, and a slot extending into an arc shape is formed on the main body, and the coupling part is arranged on the bottom support frame and includes a locking tongue that can be rotated from an initial position to a locking position to interfere with the inner wall of the slot.

2. The scanning support according to claim 1, characterized in that: The locking mechanism comprises: The engaging portion is used to engage with the locking portion and lock the tilting support frame relative to the bottom support frame when moving from the unlocked initial position to the locked position, or to unlock the tilting support frame when returning from the locked position to the initial position; and The driving part is used to drive the engaging part to move to the locking position or return to the unlocking initial position.

3. The scanning support according to claim 2, characterized in that: The card slot is connected to the outside through an opening, the width of the opening is smaller than the width of the card slot, the locking tongue passes through the opening and is arranged in the card slot, the locking tongue has a longitudinal length and a transverse length, the transverse length of the locking tongue is smaller than the width of the opening so that the locking tongue can be put into the initial position in the card slot, and the longitudinal length of the locking tongue is greater than the width of the opening so that the locking tongue can be stuck to the inner wall of the card slot in the locked position.

4. The scanning support according to claim 3, characterized in that: The locking tongue has two wedge-shaped ends opposite to each other in the longitudinal direction thereof, and each wedge-shaped end is provided with at least one pair of wedge-shaped surfaces opposite to each other in the vertical direction thereof, wherein the vertical direction is perpendicular to the transverse direction and the longitudinal direction of the locking tongue.

5. The scanning support according to claim 4, characterized in that: The slot includes at least one pair of inner walls that abut against the at least one pair of wedge-shaped surfaces.

6. The scanning support according to claim 2, characterized in that: The engaging part further comprises a rotating shaft, one end of which forms the locking tongue, and the driving part comprises a motor connected to the other end of the rotating shaft, and the motor is used to control the engaging part to rotate to an unlocked initial position or a locked position.

7. The scanning support according to claim 6, characterized in that: The scanning support further comprises a fixing portion arranged on the bottom support frame, which clamps the rotating shaft to prevent the engaging portion from rotating and moving when the tilting support frame is in a locked state.

8. The scanning support according to claim 7, characterized in that: The fixing portion comprises: A support body, wherein the support body is provided with a groove for accommodating the rotating shaft and a guide groove communicating with the groove; a locking block, at least partially disposed in the guide groove and in contact with the rotating shaft; The locking block driving mechanism is used to apply pressure to the locking block so that the locking block clamps the rotating shaft.

9. The scanning support according to claim 8, characterized in that: The locking block driving mechanism includes a hydraulic component, and the hydraulic component includes: a housing having a hydraulic chamber formed therein; a valve stem, one end of which is disposed in the hydraulic chamber and the other end of which extends out of the housing to connect with the locking block; and An oil nozzle connected to the hydraulic chamber is used to inject liquid into the hydraulic chamber to push the valve stem to drive the locking block to move so as to apply pressure to the locking block.

10. The scanning support according to claim 9, characterized in that: The rotating shaft comprises a shaft rod and a shaft disc extending radially outward from the shaft rod. The supporting body is provided with an opening for accommodating the shaft disc. The guiding groove is communicated with the opening so that the locking block accommodated therein can clamp the shaft disc.

11. The scanning support according to claim 10, characterized in that: The guide groove comprises a first guide groove and a second guide groove respectively arranged on both sides of the shaft, and the first guide groove and the second guide groove each comprise two side walls distributed on both sides of the opening; The locking block comprises: a first wedge block partially disposed in the first guide groove and relatively located at two sides of the shaft disc, and a second wedge block partially disposed in the second guide groove and relatively located at two sides of the shaft disc; The space between the side wall of each guide groove and the shaft disc forms a wedge-shaped space that cooperates with the corresponding first wedge block or second wedge block. The first wedge block and the second wedge block can move within a certain range toward or away from the shaft rod in the wedge space. During the movement of the first wedge block and the second wedge block toward the shaft rod, the pressure on the shaft disc is gradually increased under the guidance of the corresponding side walls of the guide groove until the shaft disc is clamped. During the movement of the first wedge block and the second wedge block away from the shaft rod, the pressure on the shaft disc is gradually reduced until the shaft disc is released.

12. The scanning support according to claim 9, characterized in that: The hydraulic chamber comprises a first chamber and a second chamber respectively arranged at two ends of the housing and a hydraulic pipeline connecting the first chamber and the second chamber; The valve stem includes two first valve stems and two second valve stems, one end of each first valve stem is arranged in the first cavity, one end of each second valve stem is arranged in the second cavity, and the other ends of the two first valve stems and the two second valve stems respectively extend out of the shell and are correspondingly connected to two first wedge blocks and two second wedge blocks.

13. The scanning support according to claim 12, characterized in that: An elastic sealing member is provided between each first valve stem and each second valve stem and the housing.

14. The scanning support according to claim 12, characterized in that: The shell is provided with two openings respectively communicating with the first cavity and the second cavity, and the shell is also provided with two blocking covers respectively used to block the two openings.

15. The scanning support according to claim 14, characterized in that: Each stop cover of the housing is provided with a limiting protrusion for limiting the corresponding two first valve stems or two second valve stems.

16. The scanning support according to claim 9, characterized in that: The valve stem is movably connected to the locking block so that the locking block has a certain movable margin relative to the valve stem.

17. The scanning support according to claim 2, characterized in that: The locking portion includes a main electromagnetic component extending into an arc shape, the engaging portion includes a movable magnetic core, one end of the movable magnetic core is connected to the bottom support frame through an elastic component, and the driving portion is used to control the movable magnetic core to move toward the main electromagnetic component so that the other end of the movable magnetic core is attracted to the main electromagnetic component.

18. The scanning support according to claim 17, characterized in that: The driving unit includes a power controller electrically connected to the main electromagnetic assembly, and the power controller is used to provide current to the main electromagnetic assembly so that the main electromagnetic assembly attracts the movable magnetic core.

19. The scanning support according to claim 18, characterized in that: It also includes a fixing portion arranged on the bottom support frame, which is used to contain the movable magnetic core and provide movement guidance for it, and fix the movable magnetic core when the main electromagnetic component is attracted.

20. The scanning support according to claim 19, characterized in that: The fixed part includes a secondary electromagnetic assembly arranged on the bottom support frame, and the movable magnetic core includes a main attraction part located on one side of the main electromagnetic assembly and a secondary attraction part located on the side of the secondary electromagnetic assembly, the main attraction part is opposite to the main electromagnetic assembly and can be attracted to the main electromagnetic assembly, and the secondary attraction part is opposite to the secondary electromagnetic assembly, and the power controller is also used to provide current to the secondary electromagnetic assembly so that the secondary electromagnetic assembly is attracted to the secondary attraction part.

21. The scanning support according to claim 19, characterized in that: The main electromagnetic assembly includes a plurality of electromagnetic units connected in series or in parallel.

22. The scanning support according to claim 19, characterized in that: The fixing part includes an elastic soft magnetic pad fixed on the secondary electromagnetic component. The elastic soft magnetic pad is elastic when non-magnetic and is used to compensate the gap between the secondary electromagnetic component and the movable magnetic core after the movable magnetic core is attracted to the main electromagnetic component.

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