Adjusting mechanism for CT (Computed Tomography) scanning angle and CT

Abstract

The invention discloses a CT scanning angle adjusting mechanism and a CT. The adjusting mechanism comprises a rotary supporting rack and a rotating shaft, wherein a hinge point is formed between the rotary supporting rack and the scanning system rack; the driving mechanism is connected with the rotary supporting rack and the scanning system rack, a gap is formed between the connecting point of the driving mechanism and the rotary supporting rack and the hinge point, and the driving mechanism is configured to be telescopic to drive the rotary supporting rack to rotate around the hinge point. According to the adjusting mechanism for the CT scanning angle, the driving mechanism drives the rotary supporting rack, then the scanning system of the CT is driven to rotate in the horizontal direction, and therefore inclination is achieved, and compared with the prior art, the thrust point of the driving mechanism and the rotation center of the scanning system form a force arm, so that inclination is achieved; the cost is saved, and the problem that the two motors are difficult to synchronize is solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a CT scanning angle adjustment mechanism and a CT. Background Art

[0002] Some existing CT scanning systems are designed with structures that can tilt forward and backward during scanning, which can improve imaging quality, increase the diversity of clinical applications, improve patient comfort, improve operational efficiency, and enhance the competitiveness of technical equipment, significantly improving the overall performance and clinical application value of CT equipment.

[0003] The existing main structure is to directly connect a single servo motor to the rotating shaft, and start the motor to rotate to drive the CT tilting action. The main problem with this solution is that the motor must have sufficient torque and reduction device. The CT scanning system itself is relatively heavy, and it will produce shaking and rotational inertia during scanning, so it is necessary to select a torque and reduction device with sufficient redundancy to ensure its operational safety and stability, but this will greatly increase the cost of the system. In addition, in the prior art, there is also a structure that drives the CT tilting by two motors, but it is difficult for the two motors to be synchronized.

[0004] The content of the background technology description is only for facilitating understanding of the relevant technology in this field and is not regarded as an admission of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a CT scanning angle adjustment mechanism and a CT.

[0006] According to a first aspect of the present application, a CT scanning angle adjustment mechanism is provided, the adjustment mechanism comprising: A rotating support frame having a hinge point with the scanning system frame; A driving mechanism is connected to both the rotating support frame and the scanning system frame, a connection point between the driving mechanism and the rotating support frame and the hinge point is spaced apart, and the driving mechanism is configured to be retractable to drive the rotating support frame to rotate around the hinge point.

[0007] According to one embodiment of the present application, the two ends of the rotating support mechanism respectively have a first connecting module and a second connecting module, the first connecting module is fixedly connected to the driving mechanism, the first connecting module is rotatably connected to the scanning system frame, and the second connecting module is rotatably connected to the scanning system frame.

[0008] According to one embodiment of the present application, the driving mechanism is rotatably connected to the scanning system frame.

[0009] According to one embodiment of the present application, the driving mechanism is an electrically driven push cylinder, which includes a fixed rod and a telescopic rod, the fixed rod is connected to the telescopic rod, the fixed rod is connected to the scanning system frame, and the telescopic rod is connected to the rotating support frame.

[0010] According to one embodiment of the present application, the adjustment mechanism also includes: a balancing module, whose two ends are respectively connected to the rotating support frame and the scanning system frame, and the balancing module is used to balance the tilt caused by the gravity of the scanning system when the CT scanning system rotates radially.

[0011] According to one embodiment of the present application, the adjustment mechanism also includes: a balancing module, whose two ends are respectively connected to the second connecting module and the scanning system frame, and the balancing module is used to balance the tilt caused by the gravity of the scanning system when the CT scanning system rotates around the horizontal direction.

[0012] According to one embodiment of the present application, the balancing module includes a retractable rod, a telescopic spring and a spring rod sleeve, the spring rod sleeve is connected to the scanning system frame, and the retractable rod is connected to the rotating support frame. When the scanning system rotates clockwise around the horizontal direction, the tensioning force of the telescopic spring is used to balance the inclination of the scanning system caused by the gravity. When the scanning system rotates counterclockwise around the horizontal direction, the compressive force of the telescopic spring is used to balance the inclination of the scanning system caused by the gravity.

[0013] According to one embodiment of the present application, the rotating support frame includes a rotating shaft and a supporting bearing seat, the supporting bearing seat is connected to the scanning system frame, and the rotating shaft is inserted into the supporting bearing seat.

[0014] According to one embodiment of the present application, the adjustment mechanism further includes: a rotary encoder for recording a rotation angle of the scanning system around a horizontal direction.

[0015] According to one embodiment of the present application, the adjustment mechanism also includes: a synchronization mechanism, which is connected between the rotary encoder and the rotating support frame, and the rotary encoder obtains the rotation angle of the rotating support mechanism through the synchronization mechanism to obtain the rotation angle of the scanning system around the horizontal direction.

[0016] According to one embodiment of the present application, the adjustment mechanism further includes: a rotary encoder for recording a rotation angle of the scanning system around a horizontal direction.

[0017] According to one embodiment of the present application, the adjustment mechanism further includes: a synchronization mechanism, which is connected between the rotary encoder and the second connection module, and the rotary encoder obtains the rotation angle of the rotating support mechanism through the synchronization mechanism to obtain the rotation angle of the scanning system around the horizontal direction.

[0018] According to one embodiment of the present application, the adjustment mechanism further comprises: an operating system configured to send a tilt instruction to the drive mechanism; The driving mechanism is configured to extend and retract according to the tilt instruction to rotate the scanning system around the horizontal direction; The rotary encoder is configured to record and feed back to the operating system the rotation angle of the scanning system around the horizontal direction; The operating system is further configured to control the driving mechanism to stop when the rotation angle of the rotary encoder is the same as the rotation angle included in the tilt instruction.

[0019] According to an embodiment of the present application, the CT scanning system includes an annular scanning system, and an annular hole is provided on the rotating support frame, and the size of the annular hole is adapted to the annular scanning system.

[0020] According to one embodiment of the present application, a plurality of weight-reducing holes are provided on the rotating support frame.

[0021] According to a second aspect of the present application, a CT is provided, comprising a scanning system frame, a scanning system, and the CT scanning angle adjustment mechanism provided in the above embodiment.

[0022] The CT scanning angle adjustment mechanism provided in the embodiment of the present application drives the rotating support frame through the driving mechanism, and then drives the CT scanning system to rotate around the horizontal direction, so as to achieve tilting. Compared with the prior art, since the thrust point of the driving mechanism and the rotation center of the scanning system form a force arm, it saves costs and avoids the problem of difficulty in synchronizing the two motors.

[0023] The optional features and other effects of the embodiments of the present application are partially described below, and partially can be understood by reading this document. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The embodiments of the present application are described in detail with reference to the accompanying drawings. The elements shown are not limited by the proportions shown in the accompanying drawings. The same or similar reference numerals in the accompanying drawings represent the same or similar elements, wherein: Figure 1 is a schematic structural diagram of a CT according to an embodiment of the present application; Figure 2 Schematic diagram of a first angle structure of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Figure 3 is a schematic diagram of a second angle structure of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Figure 4 is a schematic structural diagram of a CT scanning system in a vertical state according to an embodiment of the present application; Figure 5 It is a structural schematic diagram of a CT scanning system according to an embodiment of the present application after being rotated clockwise around the horizontal direction by an angle; Figure 6 It is a structural schematic diagram of a CT scanning system according to an embodiment of the present application after being rotated counterclockwise around the horizontal direction by an angle; Figure 7 It is a right view of the CT scanning system according to the embodiment of the present application after being rotated clockwise around the horizontal direction by another angle; Figure 8 It is a left view of the CT scanning system according to the embodiment of the present application after being rotated clockwise around the horizontal direction by another angle; Fig. 9 It is a structural schematic diagram of a rotating support frame of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Fig.10 It is a structural schematic diagram of a rotating support frame of a push cylinder of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Fig.11 It is a structural schematic diagram of a rotating support frame of a balancing module of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Fig.12 A partial schematic diagram of a CT scanning angle adjustment mechanism according to an embodiment of the present application; Fig.13 It is another partial schematic diagram of the adjustment mechanism of the CT scanning angle according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can also be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "upper", "lower" and similar expressions used herein are only for the purpose of illustration and are not limited to practical applications. The described features, structures or characteristics can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided so as to give a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical solution of the present application can be practiced in the absence of some specific details, or other modes, components, materials, devices or operations can be adopted. In these cases, known structures, methods, devices, implementations, materials or operations will not be shown or described in detail.

[0027] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0028] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" or "and / or" includes any and all combinations of one or more related listed items.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0030] As described in the previous background technology, the single servo motor drive method used in the existing tilt scanning CT has the problem of high system cost. In addition, in the prior art, there is also a structure in which two servo motors are arranged on both sides of the rotating shaft, which further increases the cost, and the synchronization of the two motors is difficult to be consistent.

[0031] In response to the above problems, the present application provides a new structure to enable the CT to be tilted during scanning to meet the actual scanning needs. Different from the existing direct motor drive method, the present application realizes the horizontal rotation of the CT, that is, tilting, through a rotating support frame and a driving mechanism, which greatly saves costs.

[0032] Some preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be noted that the following description is for illustrative purposes and is not intended to limit the scope of protection of the present application.

[0033] Figure 1 Schematic diagram of the structure of a CT according to an embodiment of the present application. Figure 2 Schematic diagram of the first angle structure of the CT scanning angle adjustment mechanism according to an embodiment of the present application. Figure 3 FIG. 2 is a schematic diagram of a second angle structure of the CT scanning angle adjustment mechanism according to an embodiment of the present application. Figure 1 As shown, see also Figure 2~Figure 3 The CT scanning angle adjustment mechanism provided in the present application generally includes a driving mechanism and a rotating support frame 200 .

[0034] Specifically, the rotating support frame 200 is connected to both the CT scanning system 300 and the scanning system frame 400. The shape of the CT scanning system 300 can be flat or annular, or can be any other existing shape structure. The rotating support frame 200 is adapted to the shape structure of the CT scanning system 300. For example, in one example of the present application, the CT scanning system 300 is an annular scanning system, and an annular hole 230 is provided on the rotating support frame 200. The size of the annular hole 230 is adapted to the annular scanning system. Figure 1 In the figure, a circular scanning system is shown, which is blocked by the structure. Figure 1 The annular hole cannot be seen in the figure. When the blocking structure is removed, Figure 2 and Figure 3 , showing an annular hole 230. It can be found that the annular hole 230 should be configured to avoid the detection field of view of the annular scanning system, and the physical structure part is connected to the annular scanning system.

[0035] The driving mechanism may be a push cylinder 100, which is connected to both the rotating support frame 200 and the scanning system frame 400. The connection point between the push cylinder 100 and the rotating support frame 200 is spaced from the hinge point (the position corresponding to the bearing seat 250), and the driving mechanism is configured to be retractable to drive the rotating support frame to rotate around the hinge point. In the example of the annular scanning system, the push cylinder 100 is disposed at the lower side of the scanning system 300, which can make the structure more compact, and the thrust point of the push cylinder 100 forms a force arm with the rotation center of the scanning system 300, which can reduce the requirements for power components and thus reduce costs. Among them, the thrust point of the push cylinder 100 is the connection point between it and the rotating support frame 200, and preferably, the balancing module 500 forms another connection point with the rotating support frame 200. It is understandable that when the CT scanning system 300 is a flat-panel scanning system, it can also be designed with reference to the structure of the annular scanning system, and the rotating support mechanism is set below the flat-panel scanning system, and the thrust point of the push cylinder 100 and the rotation center of the scanning system can also form a force arm, thereby reducing the requirements for power components and further reducing costs.

[0036] The scanning system frame 400 is used to support various scanning systems. It is configured to have sufficient rigidity and stability, and the bottom can be fixed to the ground with expansion screws. The scanning system is the main functional part of the CT, which includes a tube, a detector (not shown), high-voltage components, structural components, etc. The structural components have sufficient strength, and the tube, the detector and the high-voltage components are installed on the structural components.

[0037] Furthermore, the push cylinder 100 has a brake locking structure, which can lock the push cylinder 100 when it is rotated into place, so that the scanning system 300 can be stably maintained in a tilted state.

[0038] Specifically, the push cylinder 100 is connected to both the rotating support frame 200 and the scanning system frame 400, and the push cylinder 100 is configured to be retractable to drive the rotating support frame 200 to rotate, thereby driving the CT scanning system 300 to rotate around the horizontal direction. The push cylinder 100 has an initial state and also has a plurality of working states, which correspond to a plurality of tilting states of the CT scanning system 300.

[0039] Figure 4 It is a schematic structural diagram of a CT scanning system in a vertical state according to an embodiment of the present application. Figure 5 It is a schematic structural diagram of a CT scanning system according to an embodiment of the present application after being rotated clockwise around the horizontal direction by an angle. Figure 6It is a schematic structural diagram of a CT scanning system according to an embodiment of the present application after being rotated counterclockwise around the horizontal direction by an angle. Figure 7 This is a right view of the CT scanning system according to an embodiment of the present application after being rotated clockwise around the horizontal direction by another angle. Figure 8 It is a left view of the CT scanning system according to an embodiment of the present application after being rotated clockwise around the horizontal direction by another angle.

[0040] See also Figure 4~Figure 8 The push cylinder 100 is configured to drive the CT scanning system 300 to rotate clockwise and counterclockwise around the horizontal direction, wherein: Figure 4 is the vertical state of the CT scanning system 300. At this time, the plane of the ring where the scanning system 300 is located is parallel to the vertical direction. Figure 5 , Figure 7 and Figure 8 The CT scanning system 300 is in a clockwise tilted state. Fig. 9 The CT scanning system 300 is in a counterclockwise tilted state, Figure 5 The rotation angle is greater than Figure 7 and Figure 8 .

[0041] Fig. 9 FIG. 1 is a schematic diagram of the structure of a rotating support frame of a CT scanning angle adjustment mechanism according to an embodiment of the present application. Fig. 9 As shown, in an example of the present application, the two ends of the rotating support mechanism are respectively provided with a first connection module 210 and a second connection module 220, the first connection module 210 is fixedly connected to the push cylinder 100, the first connection module 210 is rotatably connected to the scanning system frame 400, and the second connection module 220 is rotatably connected to the scanning system frame 400. The structures of the first connection module 210 and the second connection module 220 are basically the same. When the push cylinder 100 is extended or retracted, the first connection module 210 is driven to rotate in a horizontal direction, and the second connection module 220 rotates with it, so that the rotation of both sides is synchronized, thereby driving the scanning system 300 to rotate in a horizontal direction.

[0042] More specifically, in an example of the present application, the push cylinder 100 is rotatably connected to the scanning system frame 400, so that one end of the push cylinder 100 is fixed and the other end is freely rotatable, so that when the scanning system 300 rotates around the horizontal direction, the angle between the push cylinder 100 and the vertical direction also changes, as shown in FIG. Figure 4~Figure 6 Angles A, B and C identified in the figure are provided to better support the scanning system 300.

[0043] Furthermore, the push cylinder 100 is connected to the scanning system frame 400 through a hinge, and rotates with the axis of the hinge as the rotation center. Furthermore, a first circular mounting hole is set at the bottom of the push cylinder 100, and a second circular mounting hole is set on the hinge, and the two are aligned and fixed by a hinge axis.

[0044] Fig.10 FIG. 1 is a schematic diagram of the structure of the rotating support frame of the push cylinder of the CT scanning angle adjustment mechanism according to an embodiment of the present application. Fig.10 As shown, in the present application, the driving mechanism is an electrically driven push cylinder 100, and the push cylinder 100 includes a fixed rod 110 and a telescopic rod 120, the fixed rod 110 and the telescopic rod 120 are connected, the fixed rod 110 is connected to the scanning system frame 400, and the telescopic rod 120 is connected to the rotating support frame 200. Further, the telescopic rod 120 is inserted into the fixed rod 110 and can be extended and retracted along its own axial direction.

[0045] Preferably, in an example of the present application, continue to refer to Figure 1~Figure 3 The adjustment mechanism further includes: a balancing module 500, whose two ends are respectively connected to the rotating support frame 200 and the scanning system frame 400, and the balancing module 500 is used to balance the tilt caused by the gravity of the scanning system 300 when the CT scanning system 300 rotates around the horizontal direction. Further, the two ends of the balancing module 500 are respectively connected to the second connecting module 220 and the scanning system frame 400. In addition, the balancing module 500 can also support the scanning system 300 together with the push cylinder 100.

[0046] Fig.11 FIG. 1 is a schematic structural diagram of a rotating support frame of a balancing module of a CT scanning angle adjustment mechanism according to an embodiment of the present application. Fig.11 As shown, the balancing module 500 includes a retractable rod 510, a telescopic spring (not shown) and a spring rod sleeve 520, wherein the spring rod sleeve 520 is connected to the scanning system frame 400, and the retractable rod 510 is connected to the rotating support frame 200. The length of the balancing module 500 varies with the length of the push cylinder 100. Since the scanning system 300 has a long lateral length and there is a gap in the bearing connection, when the push cylinder 100 is extended and retracted, the scanning system 300 will deflect under the action of gravity, so the balancing module 500 is set for balancing. Specifically, when the scanning system 300 rotates clockwise around the horizontal direction, the tensioning force of the telescopic spring is relied on to balance the tilt caused by the gravity of the scanning system 300, and when the scanning system 300 rotates counterclockwise around the horizontal direction, the compressive elastic force of the telescopic spring is relied on to balance the tilt caused by the gravity of the scanning system 300.

[0047] Furthermore, the connection method between the balancing module 500 and the scanning system frame 400 is similar to the connection method between the push cylinder 100 and the scanning system frame 400. The balancing module 500 is also connected to the scanning system frame 400 through a hinge and rotates with the axis of the hinge as the rotation center.

[0048] Fig.12 FIG. 1 is a partial schematic diagram of a CT scanning angle adjustment mechanism according to an embodiment of the present application. Fig.12 As shown, the rotating support frame 200 includes a rotating shaft 260 and a supporting bearing seat 250, the supporting bearing seat 250 is connected to the scanning system frame 400, the rotating shaft 260 is inserted in the supporting bearing seat 250, and the rotating support frame 200 and the scanning system frame 400 are rotatably connected through the rotating shaft 260 and the supporting bearing seat 250. Further, the number of the rotating shaft 260 and the supporting bearing seat 250 are both two, one rotating shaft 260 and one supporting bearing seat 250 form a set of rotating pairs, and the two sets of rotating pairs are respectively connected to the first connecting module 210 and the second connecting module 220.

[0049] Fig.13 FIG. 2 is another partial schematic diagram of the adjustment mechanism for the CT scanning angle according to an embodiment of the present application. Fig.13 As shown, the adjustment mechanism further includes: a rotary encoder 600, which is used to record the rotation angle of the scanning system 300 around the horizontal direction. By comparing the recorded rotation angle with the specified rotation angle, closed-loop control can be achieved.

[0050] Continue to see Fig.13 The adjustment mechanism further includes: a synchronization mechanism 700, which is connected between the rotary encoder 600 and the rotary support frame 200, and the rotary encoder 600 obtains the rotation angle of the rotary support mechanism through the synchronization mechanism 700 to obtain the rotation angle of the scanning system 300 around the horizontal direction. Exemplarily, the synchronization mechanism 700 includes a synchronous belt, which is connected between the rotary encoder 600 and the rotary support frame 200, and the rotary encoder 600 is arranged on the scanning system frame 400.

[0051] Further, the synchronization mechanism 700 is connected between the rotary encoder 600 and the second connecting module 220 . Further, the synchronization mechanism 700 is connected to the rotating shaft 260 on the second connecting module 220 .

[0052] More specifically, in an example of the present application, the adjustment mechanism further includes: an operating system. The operating system is configured to send a tilt instruction to the driving mechanism, the driving mechanism is configured to extend and retract according to the tilt instruction to rotate the scanning system 300 around the horizontal direction, the rotary encoder 600 is configured to record and feed back the rotation angle of the scanning system 300 around the horizontal direction to the operating system, and the operating system is further configured to control the driving mechanism to stop when the rotation angle of the rotary encoder 600 is the same as the rotation angle included in the tilt instruction, thereby realizing closed-loop control of tilt scanning.

[0053] Preferably, in an example of the present application, a plurality of weight-reducing holes 240 are provided on the rotating support frame 200 .

[0054] The CT scanning angle adjustment mechanism provided in the present application drives the rotating support frame through the push cylinder, and then drives the CT scanning system to rotate around the horizontal direction, so as to achieve tilting. Compared with the prior art, since the thrust point of the push cylinder and the rotation center of the scanning system form a force arm, it saves costs and avoids the problem of difficulty in synchronization of the two motors.

[0055] Corresponding to the above-mentioned CT scanning angle adjustment mechanism, the present application also provides a CT, which generally includes a scanning system frame, a scanning system and the CT scanning angle adjustment mechanism provided by any one of the above-mentioned examples.

[0056] In order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0057] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used for the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±10%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the method of general digit retention. Although the numerical domains and parameters used to confirm the breadth of the range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0058] Each patent, patent application, patent application disclosure, and other materials, such as articles, books, instructions, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety. Except for application history documents that are inconsistent with or conflicting with the content of this application, documents that limit the broadest scope of the claims of this application (currently or later attached to this application) are also excluded. It should be noted that if the description, definition, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content described in this application, the description, definition, and / or use of terms in this application shall prevail.

[0059] Finally, it should be understood that the embodiments described in this application are only used to illustrate the principles of the embodiments of the present application. Other variations may also fall within the scope of the present application. Therefore, as an example and not a limitation, the alternative configurations of the embodiments of the present application may be considered to be consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

1. A CT scanning angle adjustment mechanism, characterized in that: The regulating mechanism comprises: A rotating support frame having a hinge point with the scanning system frame; A driving mechanism is connected to both the rotating support frame and the scanning system frame, a connection point between the driving mechanism and the rotating support frame and the hinge point is spaced apart, and the driving mechanism is configured to be retractable to drive the rotating support frame to rotate around the hinge point.

2. The adjustment mechanism according to claim 1, characterized in that: The two ends of the rotating support mechanism are respectively provided with a first connecting module and a second connecting module, the first connecting module is fixedly connected to the driving mechanism, the first connecting module is rotatably connected to the scanning system frame, and the second connecting module is rotatably connected to the scanning system frame.

3. The adjustment mechanism according to claim 1, characterized in that: The driving mechanism is rotatably connected to the scanning system frame.

4. The adjustment mechanism according to claim 1, characterized in that: The driving mechanism is an electrically driven push cylinder, which includes a fixed rod and a telescopic rod, wherein the fixed rod is connected to the telescopic rod, the fixed rod is connected to the scanning system frame, and the telescopic rod is connected to the rotating support frame.

5. The adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism further includes: a balancing module, two ends of which are respectively connected to the rotating support frame and the scanning system frame, and the balancing module is used to balance the tilt caused by the gravity of the scanning system when the CT scanning system rotates in its own radial direction.

6. The adjustment mechanism according to claim 2, characterized in that: The adjustment mechanism further includes: a balancing module, two ends of which are respectively connected to the second connecting module and the scanning system frame, and the balancing module is used to balance the tilt caused by the gravity of the scanning system when the scanning system of the CT rotates around the horizontal direction.

7. The adjustment mechanism according to claim 5 or 6, characterized in that: The balancing module includes a retractable rod, a telescopic spring and a spring rod sleeve, the spring rod sleeve is connected to the scanning system frame, the retractable rod is connected to the rotating support frame, when the scanning system rotates clockwise around the horizontal direction, the tensioning force of the telescopic spring is relied on to balance the inclination caused by the gravity of the scanning system, and when the scanning system rotates counterclockwise around the horizontal direction, the compressive force of the telescopic spring is relied on to balance the inclination caused by the gravity of the scanning system.

8. The adjustment mechanism according to claim 1, characterized in that: The rotating support frame comprises a rotating shaft and a supporting bearing seat, the supporting bearing seat is connected to the scanning system frame, and the rotating shaft is inserted into the supporting bearing seat.

9. The adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism further includes: a rotary encoder, which is used to record the rotation angle of the scanning system around the horizontal direction.

10. The adjustment mechanism according to claim 9, characterized in that: The adjustment mechanism further includes: a synchronization mechanism connected between the rotary encoder and the rotary support frame, and the rotary encoder obtains the rotation angle of the rotary support mechanism through the synchronization mechanism to obtain the rotation angle of the scanning system around the horizontal direction.

11. The adjustment mechanism according to claim 2, characterized in that: The adjustment mechanism further includes: a rotary encoder, which is used to record the rotation angle of the scanning system around the horizontal direction.

12. The adjustment mechanism according to claim 12, characterized in that: The adjustment mechanism further includes: a synchronization mechanism connected between the rotary encoder and the second connection module, and the rotary encoder obtains the rotation angle of the rotary support mechanism through the synchronization mechanism to obtain the rotation angle of the scanning system around the horizontal direction.

13. The adjustment mechanism according to claim 9 or 11, characterized in that: The adjustment mechanism further includes: an operating system configured to send a tilt instruction to the drive mechanism; The driving mechanism is configured to extend and retract according to the tilt instruction to rotate the scanning system around the horizontal direction; The rotary encoder is configured to record and feed back to the operating system the rotation angle of the scanning system around the horizontal direction; The operating system is further configured to control the driving mechanism to stop when the rotation angle of the rotary encoder is the same as the rotation angle included in the tilt instruction.

14. The adjustment mechanism according to claim 1, characterized in that: The CT scanning system includes an annular scanning system. The rotating support frame is provided with an annular hole, and the size of the annular hole is adapted to the annular scanning system.

15. The adjustment mechanism according to claim 1, characterized in that: The rotating support frame is provided with a plurality of weight-reducing holes.

16. A CT, characterized in that: The invention comprises a scanning system frame, a scanning system and a CT scanning angle adjustment mechanism according to any one of claims 1 to 15.

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