A double feedback limiting mechanism for a detector rotation of an X-ray machine

Abstract

The application provides a detector rotating double-feedback limiting mechanism for an X-ray machine and belongs to the technical field of medical instruments. The structure is composed of a detector system, a double-feedback limiting mechanism and a U-arm system. The double-feedback limiting mechanism is composed of a push rod fixing seat, an electric push rod, a cam mechanism, a protractor, a limiting pin mechanism, a potential switch and a driving control board. The detector system can be driven to rotate by the driving control board and the electric push rod. The lower end pin of the limiting pin mechanism can mechanically control the rotating angle of the detector system. The upper end pin of the limiting pin mechanism can synchronously and electrically control the rotating movement of the detector system. The detector precision positioning and real-time feedback requirements are met, and the safety of the protection mechanism is ensured.

Description

Technical Field

[0001] This invention relates to a rotary dual-feedback limiting mechanism, and more particularly to a rotary dual-feedback limiting mechanism for a detector in an X-ray machine. Background Technology

[0002] Currently, some digital X-ray machines require the detector system to be rotated at a fixed horizontal angle when performing imaging work on patients. Clinically, the duration of imaging work is quite sensitive, and the positioning cycle of imaging equipment needs to be short and effective.

[0003] Currently, some digital X-ray imaging machines have limited positioning capabilities, resulting in difficulties in positioning, insufficient positioning accuracy, and inadequate positioning feedback. Summary of the Invention

[0004] Purpose of the invention: The technical problem to be solved by the present invention is to provide a detector rotation dual feedback limiting mechanism for X-ray machines, which addresses the shortcomings of the prior art.

[0005] To address the aforementioned technical problems, this invention discloses a detector rotation dual-feedback limiting mechanism for an X-ray machine. The imaging system in the X-ray machine includes a detector system for X-ray imaging and a U-arm system for supporting the detector system's movement. The detector system and the U-arm system are connected by the dual-feedback limiting mechanism. The dual-feedback limiting mechanism is fixedly installed on the U-arm system, and is fixedly connected to the detector system, controlling its rotation or stopping.

[0006] Furthermore, the dual feedback limiting mechanism includes: a rotation drive component, an indexing plate, and a limiting component, wherein one end of the rotation drive component is fixedly disposed on one side of the end of the U-arm system, and the other end is fixedly connected to the indexing plate for driving the indexing plate to rotate;

[0007] One end of the limiting component is fixedly disposed on the other side of the end of the U-arm system, and the other end extends toward the indexing plate, thereby limiting the rotation of the indexing plate by telescoping.

[0008] The axis of the indexing plate is fixedly connected to one side of the detector system, and the rotation of the indexing plate drives the detector system to rotate.

[0009] Furthermore, the rotation drive component and the limiting component are electrically connected, and the limiting component sends a control signal according to its own state to control the movement of the rotation drive component.

[0010] Furthermore, the rotation drive component includes: a push rod fixing seat, an electric push rod, and a cam mechanism;

[0011] The push rod fixing seat is fixed at the end of the U-arm system. One end of the electric push rod is fixed on the push rod fixing seat, and the other end is rotatably connected to the cam mechanism. The electric push rod extends and retracts to drive the cam mechanism to rotate. The cam mechanism is coaxially connected to the indexing plate. The rotation of the cam mechanism drives the indexing plate to rotate.

[0012] Furthermore, the limiting component includes a limiting pin mechanism, which is fixed at the end of the U-arm system. A pin is provided at the lower end of the limiting pin mechanism, and the pin restricts the rotation of the indexing plate when it moves downward.

[0013] Furthermore, the limiting component also includes: a potential switch and a drive control board, the potential switch and the drive control board being electrically connected;

[0014] The potential switch is fixedly mounted above the end-positioning pin mechanism of the U-arm system, and the drive control board is fixedly mounted above the end-positioning potential switch of the U-arm system.

[0015] The upper end of the limiting pin mechanism is provided with a plate. When the plate moves upward, it triggers a potential switch to generate a motion command, which is sent to the drive control board. When the plate moves downward, it triggers a potential switch to generate a stop command, which is sent to the drive control board.

[0016] The drive control board is electrically connected to the rotary drive component and drives the rotary drive component according to the movement or stop command.

[0017] Furthermore, the limiting component also includes: a lifting handle fixedly disposed in the middle of the limiting component, the handle being perpendicular to the movement direction of the limiting component, for manually lifting or lowering the lever to drive the pin to move up and down.

[0018] Furthermore, the electric push rod is electrically connected to the limiting component and receives a control signal to perform telescopic movement for rotating the indexing plate.

[0019] Furthermore, a groove pointing towards the center is provided on the circumference of the indexing plate. When the pin moves downward to restrict the rotation of the indexing plate, the pin is inserted into the groove.

[0020] Furthermore, the number of grooves is preset according to the rotation angle of the detector system.

[0021] Beneficial effects:

[0022] It meets the clinical placement requirements of detector systems, effectively protects institutional safety through real-time dual feedback, and features high precision, simple operation, high work efficiency, and reliable safety. Attached Figure Description

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0024] Figure 1 This is a three-dimensional structural diagram of the dual feedback limiting mechanism locking detector system in rotational state according to the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the dual feedback limiting mechanism locking detector system of the present invention from another angle in its rotational state.

[0026] Figure 3 This is a three-dimensional structural diagram of the X-ray imaging system using the present invention.

[0027] Figure 4 This is a three-dimensional structural diagram of the X-ray imaging system using the present invention from another angle.

[0028] Figure 5 This is an actual product drawing of the present invention.

[0029] In the diagram: detector system 100, dual feedback limit mechanism 200, U-arm system 300, push rod fixing seat 1, electric push rod 2, cam mechanism 3, indexing plate 4, limit pin mechanism 5, potential switch 6, drive control board 7. Detailed Implementation

[0030] like Figure 3 As shown, the dual feedback limit mechanism 200 is installed on the U-arm system 300. The dual feedback limit mechanism 200 is connected to the detector system 100 and rotates through it.

[0031] like Figure 1 As shown, the electric push rod 2 is fixed on the push rod fixing seat 1. The telescopic rod of the electric push rod 2 is connected to the cam mechanism 3. The cam mechanism 3 is coaxially connected to the indexing plate 4. The indexing plate 4 is coaxially connected to the detector system 100. The drive control board 7 controls the telescopic movement of the electric push rod 2 and drives the detector system 100 to rotate.

[0032] like Figure 4 As shown, the dual feedback limit mechanism 200 can mechanically limit the rotation of the indexing plate 4 through the lower pin of the limit pin mechanism 5, thereby limiting the rotation angle of the detector system 100. It can also send commands to the control board 7 through the upper plate of the limit pin mechanism 5 to control the start and stop of the electric push rod 2.

[0033] When the limit pin mechanism 5 is manually lifted, the lower pin disengages from the slot of the indexing plate 4, and the upper insert probes into the sensing area of ​​the potential switch 6. The drive control board 7 sends a motion command, the electric push rod 2 starts moving, and the detector system 100 rotates. When the limit pin mechanism 5 releases the manual lifting rod, the lower pin automatically falls into the slot of the indexing plate 4, and the upper insert disengages from the sensing area of ​​the potential switch 6. The drive control board 7 sends a stop command, the electric push rod 2 stops moving, and the detector system 100 stops rotating.

[0034] Example:

[0035] In the process of positioning a digital X-ray imaging machine, this invention provides a detector rotation dual feedback limiting mechanism, which can meet the requirements of precise positioning and real-time feedback of the detector system.

[0036] The following is an embodiment of the present invention, such as Figure 2 As shown, the specific scheme is as follows: The imaging system structure of the digital X-ray imaging machine consists of a detector system 100, a dual feedback limiting mechanism 200, and a U-arm system 300. The dual feedback limiting mechanism 200 is installed on the U-arm system 300 and is connected to the detector system 100, causing it to rotate.

[0037] A further preferred embodiment of the present invention is that the dual feedback limiting mechanism 200 comprises a push rod fixing seat 1, an electric push rod 2, a cam mechanism 3, an indexing plate 4, a limiting pin mechanism 5, a potential switch 6, and a drive control board 7.

[0038] The electric push rod 2 is fixed on the push rod fixing seat 1. The telescopic rod in the electric push rod 2 is connected to the cam mechanism 3. The cam mechanism 3 is coaxially connected to the indexing plate 4. The indexing plate 4 is coaxially connected to the detector system 100.

[0039] A further preferred embodiment of the present invention is that the dual feedback limiting mechanism 200 mechanically restricts the rotation of the indexing plate 4 by means of the lower end pin of the limiting pin mechanism 5, thereby limiting the rotation angle of the detector system 100.

[0040] A further preferred embodiment of the present invention is that the dual feedback limiting mechanism 200 can send commands to the control board 7 via the upper insert of the limiting pin mechanism 5 to control the start and stop of the electric push rod 2.

[0041] A further preferred embodiment of the present invention is that the drive control board 7 controls the electric push rod 2 to extend and retract, thereby driving the detector system 100 to rotate.

[0042] A further preferred embodiment of the present invention is as follows: the limiting pin mechanism 5 is manually lifted, the lower pin disengages from the slot of the indexing plate 4, the upper insert probes into the sensing area of ​​the potential switch 6, the drive control board 7 sends a motion command, the electric push rod 2 starts to move, and the detector system 100 rotates.

[0043] A further preferred embodiment of the present invention is as follows: when the limiting pin mechanism 5 releases the manual lifting rod, the lower pin automatically falls into the slot of the indexing plate 4, the upper insert disengages from the sensing area of ​​the potential switch 6, the drive control board 7 sends a stop command, the electric push rod 2 stops moving, and the detector system 100 stops rotating.

[0044] A further preferred embodiment of the present invention is that the mechanical limiting pin mechanism 5 operates synchronously with the electric control, effectively preventing overload of the electric push rod 2 motor and protecting the performance and stability of the electric push rod 2.

[0045] This invention provides a concept and method for a detector rotation dual-feedback limiting mechanism for X-ray machines. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A detector rotation dual-feedback limiting mechanism for an X-ray machine, wherein the imaging system of the X-ray machine includes a detector system (100) for performing X-ray imaging and a U-arm system (300) for supporting the movement of the detector system (100), characterized in that, The detector system (100) and the U-arm system (300) are connected by the dual feedback limiting mechanism (200); the dual feedback limiting mechanism (200) is fixedly installed on the U-arm system (300), and the dual feedback limiting mechanism (200) is fixedly connected to the detector system (100) and controls its rotation or stop; The dual feedback limiting mechanism (200) includes: a rotation drive component, an indexing plate (4) and a limiting component, wherein one end of the rotation drive component is fixedly disposed on one side of the end of the U-arm system (300), and the other end is fixedly connected to the indexing plate (4) for driving the indexing plate (4) to rotate; One end of the limiting component is fixedly disposed on the other side of the end of the U-arm system (300), and the other end extends toward the indexing plate (4), and restricts the rotation of the indexing plate (4) by extension and retraction; The axis of the indexing plate (4) is fixedly connected to one side of the detector system (100), and the rotation of the indexing plate (4) drives the detector system (100) to rotate. The rotation drive component includes: a push rod fixing seat (1), an electric push rod (2), and a cam mechanism (3); Among them, the push rod fixing seat (1) is fixed at the end of the U-arm system (300), one end of the electric push rod (2) is fixed on the push rod fixing seat (1), and the other end is rotatably connected to the cam mechanism (3). The electric push rod (2) extends and retracts to drive the cam mechanism (3) to rotate. The cam mechanism (3) is coaxially connected to the indexing plate (4). The rotation of the cam mechanism (3) drives the indexing plate (4) to rotate. The limiting component includes: a limiting pin mechanism (5), which is fixed at the end of the U-arm system (300), and a pin is provided at the lower end of the limiting pin mechanism (5). When the pin moves downward, it restricts the rotation of the indexing plate (4). The limiting component further includes: a potential switch (6) and a drive control board (7), which are electrically connected; The potential switch (6) is fixedly installed above the end limit pin mechanism (5) of the U-arm system (300), and the drive control board (7) is fixedly installed above the end potential switch (6) of the U-arm system (300). The upper end of the limiting pin mechanism (5) is provided with a insert. When the insert moves upward, it triggers the potential switch (6) to generate a motion command and sends it to the drive control board (7); when the insert moves downward, it triggers the potential switch (6) to generate a stop command and sends it to the drive control board (7). The drive control board (7) is electrically connected to the rotation drive component and drives the rotation drive component according to the movement or stop command; The rotation drive component and the limiting component are electrically connected. The limiting component sends a control signal according to its own state to control the movement of the rotation drive component. The limiting component further includes: a lifting handle fixedly disposed in the middle of the limiting component, the lifting handle being perpendicular to the movement direction of the limiting component, for manually lifting or lowering the lever, thereby driving the pin to move up and down; The electric push rod (2) is electrically connected to the limiting component and receives a control signal to perform telescopic movement for the rotation of the indexing plate (4); The indexing plate (4) has a groove pointing to the center on its circumference. When the pin moves downward to restrict the rotation of the indexing plate (4), the pin is inserted into the groove. The number of grooves is preset according to the rotation angle of the detector system (100); When the limit pin mechanism (5) is manually lifted, the lower pin disengages from the slot of the indexing plate (4), the upper insert probes into the sensing area of ​​the potential switch (6), the drive control board (7) sends a motion command, the electric push rod (2) starts to move, and the detector system (100) rotates. When the limit pin mechanism (5) releases the manual lifting rod, the lower pin automatically falls into the slot of the indexing plate (4), the upper insert disengages from the sensing area of ​​the potential switch (6), the drive control board (7) sends a stop command, the electric push rod (2) stops moving, and the detector system (100) stops rotating. The limiting pin mechanism (5) is mechanically limited and electrically controlled synchronously to prevent the motor of the electric push rod (2) from being overloaded.

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