Vehicle-mounted CT system

Abstract

The vehicle-mounted CT system comprises a vehicle-mounted CT host and further comprises an angle adjusting mechanism arranged at the bottom of the CT host, the angle adjusting mechanism comprises a direction assembly, the direction assembly comprises a transverse rod and a sliding block, the two ends of the transverse rod are connected with the two opposite inner walls of an adjusting cavity respectively, and the transverse rod is perpendicular to the length axis of a vehicle; when the vehicle runs in a straight line, the sliding block is located in the center of the adjusting cavity, springs are arranged on the portions, on the two sides of the sliding block, of the cross rod in a sleeving mode, pressure sensors are arranged between the springs and the inner wall of the adjusting cavity, the bottom of the CT host is connected with an installation base, and the installation base is movably connected with the inner bottom wall of the vehicle. An adjusting cavity located below the mounting base is formed in the inner bottom wall of the vehicle, and the driving assembly is located in the adjusting cavity and used for adjusting the inclination angle of the mounting base.

Description

Technical Field

[0001] The present invention relates to the technical field of CT machines, and in particular to a vehicle-mounted CT system. Background Art

[0002] In a vehicle-mounted CT system, the CT host is generally installed on an ambulance. When an ambulance is transporting patients, especially emergency patients, it usually travels at a high speed. When a sharp turn occurs during driving, the CT host is often separated from its fixed position and collides with the inner wall of the ambulance due to excessive centrifugal force. The collision can easily cause damage to its appearance and internal components. The existing vehicle-mounted CT host is not equipped with a device to cope with the centrifugal force, and cannot provide good protection for the CT host in the case of a sharp turn. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle-mounted CT system, which can adjust the inclination angle of the internal CT host when the ambulance makes a sharp turn, thereby generating a sufficiently large centripetal force to balance the centrifugal force generated when the CT host follows the vehicle when making a sharp turn, thereby preventing the CT host from being separated from the vehicle and colliding in the vehicle when the vehicle makes a sharp turn, causing damage to its appearance and internal components, and reducing the loss of the hospital.

[0004] In order to solve the above technical problems, the present invention adopts the following solutions: A vehicle-mounted CT system comprises a vehicle-mounted CT host, and also comprises an angle adjustment mechanism arranged at the bottom of the CT host, the angle adjustment mechanism comprises a direction component, the direction component comprises a cross bar and a slider, the two ends of the cross bar are respectively connected to two opposite inner walls of an adjustment cavity, the cross bar is perpendicular to the length axis of the vehicle, the slider passes through the cross bar, and the slider is provided with a through hole allowing the cross bar to pass through, when the vehicle travels in a straight line, the slider is located at the center of the adjustment cavity, the cross bars on both sides of the slider are sleeved with springs, a pressure sensor is provided between the spring and the inner wall of the adjustment cavity, a mounting seat is connected to the bottom of the CT host, the mounting seat is movably connected to the inner bottom wall of the vehicle, the inner bottom wall of the vehicle is provided with an adjustment cavity located below the mounting seat, and also comprises a driving component located in the adjustment cavity and used for adjusting the inclination angle of the mounting seat.

[0005] Optionally, the mounting seat is adapted to the size of the adjustment cavity, and a rotating shaft rotatably connected to the inner wall of the adjustment cavity is provided on the side of the mounting seat, the axis of the rotating shaft is parallel to the axis in the length direction of the vehicle, the driving assembly is installed on the bottom wall of the adjustment cavity and is located on both sides of the axis of the rotating shaft, and the working end of the driving assembly is hinged to the bottom surface of the mounting seat.

[0006] Optionally, the driving assembly is a hydraulic cylinder, and hydraulic cylinders are provided on both sides of the rotating shaft, the bottom end of the hydraulic cylinder is connected to the bottom wall of the adjustment cavity, and the telescopic end of the hydraulic cylinder is hinged to the bottom surface of the mounting seat.

[0007] Optionally, when the pressure value measured by the pressure sensor on the right side of the slider is greater than a threshold value, the vehicle turns left, and the centrifugal force applied to the CT host is opposite to the direction of the vehicle's turning. At this time, the hydraulic cylinder on the right extends and the hydraulic cylinder on the left contracts; when the pressure value measured by the pressure sensor on the left side of the slider is greater than a threshold value, the vehicle turns right, and the centrifugal force applied to the CT host is opposite to the direction of the vehicle's turning. At this time, the hydraulic cylinder on the right contracts and the hydraulic cylinder on the left extends.

[0008] Optionally, a bearing is sleeved on the rotating shaft, and the bearing is embedded in the inner wall of the adjusting cavity.

[0009] The present invention has the beneficial effects: In the present invention, when the ambulance makes a sharp turn, the driving component can adjust the tilt angle of the vehicle-mounted CT host, thereby generating a sufficiently large centripetal force to balance the centrifugal force generated when the CT host follows the vehicle to make a sharp turn, thereby preventing the CT host from being separated from the vehicle and colliding in the vehicle when the vehicle makes a sharp turn, causing damage to its appearance and internal components, and reducing the loss of the hospital. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure after the CT host angle is adjusted after the vehicle turns left; Figure 3 This is a schematic diagram of the mechanical balance of the CT host after tilting; Figure 4 It is a schematic diagram of the extension and retraction height of the hydraulic cylinder; Figure 5 This is a road information map for left turns.

[0011] Figure numerals: 1-vehicle, 2-hydraulic cylinder, 3-mounting seat, 4-rotating shaft, 5-CT main engine, 6-adjusting chamber, 7-cross bar, 8-slider, 9-spring, 10-pressure sensor. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0013] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0014] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] A vehicle-mounted CT system includes a vehicle-mounted CT host 5, and also includes an angle adjustment mechanism arranged at the bottom of the CT host 5, the angle adjustment mechanism includes a direction component, the direction component includes a cross bar 7 and a slider 8, both ends of the cross bar 7 are respectively connected to two opposite inner walls of an adjustment cavity 6, the cross bar 7 is perpendicular to the length axis of a vehicle 1, the slider 8 passes through the cross bar 7, and the slider 8 is provided with a through hole allowing the cross bar 7 to pass through, when the vehicle 1 travels in a straight line, the slider 8 is located at the center of the adjustment cavity 6, springs 9 are sleeved on the cross bars 7 on both sides of the slider 8, and a pressure sensor 10 is provided between the spring 9 and the inner wall of the adjustment cavity 6, a mounting seat 3 is connected to the bottom of the CT host 5, the mounting seat 3 is movably connected to the inner bottom wall of the vehicle 1, the inner bottom wall of the vehicle 1 is provided with an adjustment cavity 6 located below the mounting seat 3, and also includes a driving component located in the adjustment cavity 6 and used to adjust the inclination angle of the mounting seat 3.

[0016] Furthermore, the mounting seat 3 is adapted to the size of the adjustment cavity 6, and a rotating shaft 4 rotatably connected to the inner wall of the adjustment cavity 6 is provided on the side of the mounting seat 3, the axis of the rotating shaft 4 is parallel to the axis of the length direction of the vehicle 1, and the driving assembly is installed on the bottom wall of the adjustment cavity 6 and is located on both sides of the axis of the rotating shaft 4, and the working end of the driving assembly is hinged to the bottom surface of the mounting seat 3.

[0017] Furthermore, the driving component is a hydraulic cylinder 2 , and a hydraulic cylinder 2 is provided on both sides of the rotating shaft 4 , the bottom end of the hydraulic cylinder 2 is connected to the bottom wall of the adjusting chamber 6 , and the telescopic end of the hydraulic cylinder 2 is hinged to the bottom surface of the mounting seat 3 .

[0018] Furthermore, when the pressure value measured by the pressure sensor 10 on the right side of the slider 8 is greater than a threshold value, the vehicle 1 turns left, and the centrifugal force applied to the CT host 5 is opposite to the turning direction of the vehicle 1. At this time, the hydraulic cylinder 2 on the right side extends, and the hydraulic cylinder 2 on the left side contracts; when the pressure value measured by the pressure sensor 10 on the left side of the slider 8 is greater than a threshold value, the vehicle 1 turns right, and the centrifugal force applied to the CT host 5 is opposite to the turning direction of the vehicle 1. At this time, the hydraulic cylinder 2 on the right side contracts, and the hydraulic cylinder 2 on the left side extends.

[0019] Furthermore, a bearing is sleeved on the rotating shaft 4 , and the bearing is embedded in the inner wall of the adjusting cavity 6 .

[0020] In this embodiment, Figure 1 As shown, the CT host 5 is generally installed inside the ambulance. When the ambulance is driving on the road, the general city road turns are not in an inclined state. In this way, the vehicle 1 (ambulance) will generate a large centrifugal force when making a sharp turn. Therefore, the internal on-board CT host 5 will also generate centrifugal force in the same direction as the ambulance, which can easily cause the CT host 5 to be thrown out and separated from the ambulance, thereby causing the CT host 5 to collide with the interior of the ambulance and cause damage.

[0021] In order to adjust the angle accurately and automatically, a controller can be added to control the action of the drive component. The controller is connected to the vehicle system of vehicle 1, and can obtain the real-time speed information of vehicle 1 and the corresponding map information. The CT host 5 is synchronized with the speed of the vehicle, and the road turning radius data at the turn can be obtained from the map. The pressure sensor 10 in the direction component is connected to the controller, and the steering data of vehicle 1 can be known through the pressure sensor 10. The controller obtains the angle value that the CT host 5 needs to adjust based on the speed data of vehicle 1, the road turning radius data on the map, and the steering data, and controls the drive component to adjust the CT host 5 to the angle value. Figure 2 As shown, the angle adjustment unit is controlled to adjust the CT host 5 to the angle, so that when the ambulance makes a sharp turn, the tilt angle of the internal vehicle-mounted CT host 5 can be adjusted, thereby generating a sufficiently large centripetal force to balance the centrifugal force generated when the CT host 5 follows the vehicle 1 when making a sharp turn, thereby preventing the CT host 5 from being separated from the vehicle 1 when the vehicle 1 makes a sharp turn and colliding in the vehicle, causing damage to its appearance and internal components, thereby reducing the loss of the hospital.

[0022] Specific adjustment principle: Figure 3 , Figure 4 and Figure 5 As shown, when the controller receives the speed data of vehicle 1 and the road turning radius data, according to the centrifugal force calculation formula F1=mv 2 / r to obtain the centrifugal force value of the critical point where the CT host 5 is thrown out and is about to separate from the vehicle 1, where F1 is the centrifugal force on the CT host 5 when the vehicle 1 makes a sharp turn, m is the mass of the CT host 5, v is the speed at which the CT host 5 moves with the vehicle 1, that is, the speed of the vehicle 1, and r is the radius of the curve at the turning point of the vehicle 1. Combined with the mechanical balance relationship, in order to prevent the CT host 5 from being thrown out, it is necessary to generate a corresponding centripetal force to offset the centrifugal force brought by the vehicle 1 when turning. The centripetal force is in the opposite direction to the centrifugal force, and the centrifugal force has been calculated, so the centripetal force F2= F1, in order to make the CT host 5 generate centripetal force, the CT host 5 needs to tilt when the vehicle 1 turns, and the tilt angle θ is unknown. After the CT host 5 is tilted, its bottom surface is located on an inclined plane, and the angle between the inclined plane and the horizontal plane is the angle value θ. The gravity mg of the CT host 5 generates two components in the direction perpendicular to the inclined plane and parallel to the inclined plane. The force toward the center of the curve is the centripetal force F2, and the force away from the center of the curve is the centrifugal force F1, where g is the acceleration of gravity. According to the vector decomposition after the CT host 5 is tilted and combined with the trigonometric function relationship, F2=mg×sinθ= F1=mv 2 / r, after conversion, we get sinθ=v 2 / gr, thus obtaining the angle value that the CT host 5 needs to be adjusted, and the controller controls the hydraulic cylinder to adjust the CT host 5 to the inclined state of the angle value. The specific inclination direction of the CT host 5 is determined according to the steering data. If the vehicle 1 turns right, the centrifugal force on the CT host 5 is to the left, and the CT host 5 needs to be tilted to the right to obtain the centripetal force; conversely, if the vehicle 1 turns left, the centrifugal force on the CT host 5 is to the right, and the CT host 5 needs to be tilted to the left to obtain the centripetal force. Based on this, the inclination direction of the CT host 5 is adjusted to generate a sufficiently large centripetal force to balance the centrifugal force generated when the CT host 5 follows the vehicle 1 when making a sharp turn, so as to avoid the CT host 5 being separated from the vehicle 1 when the vehicle 1 makes a sharp turn and colliding in the vehicle, causing damage to its appearance and internal components, thereby reducing the loss of the hospital.

[0023] The mounting seat 3 is connected to the bottom of the CT host 5, providing a stable support platform for the CT host 5. At the same time, an active connection is achieved between the mounting seat 3 and the inner bottom wall of the vehicle 1, so that the mounting seat 3 (and the CT host 5 connected thereto) can be freely tilted within a certain range. An adjustment cavity 6 is provided on the inner bottom wall of the vehicle 1, located below the mounting seat 3. The adjustment cavity allows the mounting seat 3 to tilt. The direction component is used to obtain the steering data of the CT host 5 following the vehicle 1, that is, whether the vehicle 1 turns left or right, and then obtains the direction of the centrifugal force exerted on the CT host 5. The hydraulic cylinder 2 adjusts the tilt angle of the mounting seat 3 according to the instructions of the controller through precise control algorithms and mechanical transmission mechanisms. In this way, when the vehicle 1 turns, the CT host 5 can automatically tilt to a suitable angle according to the radius and speed of the turn, generate centripetal force to offset the influence of the centrifugal force and maintain stability.

[0024] A rotating shaft 4 is fixed at the center of the side of the mounting seat 3. A bearing is sleeved on the rotating shaft 4. The bearing is embedded in the inner wall of the adjustment cavity 6. In this way, when the driving component drives the mounting seat 3 to move, the rotation of the mounting seat 3 is more sensitive.

[0025] like Figure 4 As shown, when the controller calculates sinθ=v 2 / gr, the controller will control the hydraulic cylinders 2 on both sides of the rotating shaft 4 to move. For example, the mounting plate needs to be tilted to the left. At this time, the required tilt angle is θ. The mounting seat 3 forms an inclined surface after tilting. The top surface of the adjustment cavity 6 is a horizontal plane. The telescopic rod of the hydraulic cylinder 2 on the left needs to be retracted to a length of h, and the telescopic rod of the hydraulic cylinder 2 on the right needs to be extended to h. The length L of the mounting plate is known. According to the trigonometric function, sinθ=h / L is obtained. After conversion, h / L=v is obtained. 2 / gr, h can be calculated. The controller controls the left hydraulic cylinder 2 to retract vertically downward by h, and the right hydraulic cylinder 2 to extend vertically upward by h, so that the mounting seat 3 can be adjusted to an inclined state with an angle value of θ, and then the inclination angle value of the CT host 5 is also θ.

[0026] The specific working principle of the direction component: Figure 2As shown, the two ends of the cross bar 7 are respectively connected to the two opposite inner walls of the adjustment chamber 6 to ensure the fixed position of the cross bar 7 in the vehicle 1. The cross bar 7 is perpendicular to the length axis of the vehicle 1. This design is to enable the movement of the slider 8 on the cross bar 7 to accurately reflect the direction of the centrifugal force when the vehicle 1 turns. The slider 8 passes through the cross bar 7 and is provided with a through hole allowing the cross bar 7 to pass through, so that the slider 8 can slide freely on the cross bar 7. Springs 9 are sleeved on the cross bars 7 on both sides of the slider 8. The springs 9 keep the slider 8 at the center of the adjustment chamber 6 when the vehicle 1 is traveling in a straight line. A pressure sensor 10 connected to the controller is provided between the spring 9 and the inner wall of the adjustment chamber 6. When the vehicle 1 turns, the slider 8 will move due to the action of the centrifugal force, thereby compressing or stretching the spring 9, so that the pressure sensor 10 is pressurized. When the pressure sensor 10 is pressurized, it will send a signal to the controller to obtain the steering data of the centrifugal force exerted on the CT host 5.

[0027] When the pressure value measured by the pressure sensor 10 on the right side of the slider 8 is greater than the threshold value, it means that the vehicle 1 is turning left, and the centrifugal force on the CT host 5 is judged to be to the right. The design of a threshold value is to avoid the shaking of the vehicle 1 during normal driving, which causes the slider 8 to slide slightly, so that the pressure data generated when the pressure sensor 10 is compressed causes the controller to control the hydraulic cylinder 2 to act, ensuring that the hydraulic cylinder 2 will be activated only in the case of a sharp turn. After determining the direction of the centrifugal force, at this time, the controller will control the hydraulic cylinder 2 on the right to extend and the hydraulic cylinder 2 on the left to contract, so that the mounting seat 3 and the CT host 5 tilt to the left to offset the centrifugal force. On the contrary, when the pressure value measured by the pressure sensor 10 on the left side of the slider 8 is greater than the threshold value, it means that the vehicle 1 is turning right, and the centrifugal force on the CT host 5 is to the left. At this time, the controller will control the hydraulic cylinder 2 on the right to contract and the hydraulic cylinder 2 on the left to extend, so that the mounting seat 3 and the CT host 5 tilt to the right. By extending and contracting the hydraulic cylinder 2, the inclination angle of the mounting seat 3 is adjusted, thereby achieving angle adjustment of the CT mainframe 5. This adjustment is real-time and can be dynamically adjusted according to the turning situation and speed of the vehicle 1 to ensure that the CT mainframe 5 remains stable during the turning process and avoids being thrown out.

[0028] Example 2 In this embodiment, the controller obtains the speed data, road turning radius data, and steering data of the CT main engine 5, obtains the angle value that the CT main engine 5 needs to be adjusted according to the received speed data, road turning radius data, and steering data, and controls the hydraulic cylinder 2 to adjust the CT main engine 5 to the angle value. The controller first obtains the centrifugal force of the CT main engine 5 at the critical point of being thrown out when the vehicle 1 turns according to the speed data and the road turning radius data, obtains the balance of the centrifugal force and the centripetal force on the CT main engine 5 according to the mechanical balance relationship, and then obtains the angle value that the CT main engine 5 needs to be adjusted according to the centripetal force. The controller combines the steering data and the hydraulic cylinder 2 to adjust the CT main engine 5 to the angle value. If the centrifugal force is to the right, the CT main engine 5 needs to tilt to the left, and if the centrifugal force is to the left, the CT main engine 5 needs to tilt to the right.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. According to the technical essence of the present invention, within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vehicle-mounted CT system, comprising a vehicle-mounted CT host (5), characterized in that: The invention also includes an angle adjustment mechanism arranged at the bottom of the CT mainframe (5), the angle adjustment mechanism including a direction assembly, the direction assembly including a crossbar (7) and a slider (8), the two ends of the crossbar (7) are respectively connected to two opposite inner walls of the adjustment chamber (6), the crossbar (7) is perpendicular to the length axis of the vehicle (1), the slider (8) passes through the crossbar (7), and the slider (8) is provided with a through hole allowing the crossbar (7) to pass through. When the vehicle (1) is traveling in a straight line, the slider (8) is located at the center of the adjustment chamber (6), the crossbars (7) on both sides of the slider (8) are provided with springs (9), and a pressure sensor (10) is provided between the spring (9) and the inner wall of the adjustment chamber (6). The bottom of the CT mainframe (5) is connected to a mounting seat (3), the mounting seat (3) is movably connected to the inner bottom wall of the vehicle (1), and the inner bottom wall of the vehicle (1) is provided with an adjustment chamber (6) located below the mounting seat (3). The invention also includes a drive assembly located in the adjustment chamber (6) and used to adjust the tilt angle of the mounting seat (3).

2. The vehicle-mounted CT system according to claim 1, characterized in that: The mounting seat (3) is adapted to the size of the adjustment cavity (6); a rotating shaft (4) rotatably connected to the inner wall of the adjustment cavity (6) is provided on the side of the mounting seat (3); the axis of the rotating shaft (4) is parallel to the axis of the length direction of the vehicle (1); the driving assembly is mounted on the bottom wall of the adjustment cavity (6) and is located on both sides of the axis of the rotating shaft (4); and the working end of the driving assembly is hinged to the bottom surface of the mounting seat (3).

3. The vehicle-mounted CT system according to claim 2, characterized in that: The driving assembly is a hydraulic cylinder (2), and a hydraulic cylinder (2) is provided on both sides of the rotating shaft (4). The bottom end of the hydraulic cylinder (2) is connected to the bottom wall of the adjustment chamber (6), and the telescopic end of the hydraulic cylinder (2) is hinged to the bottom surface of the mounting seat (3).

4. The vehicle-mounted CT system according to claim 3, characterized in that: When the pressure value measured by the pressure sensor (10) on the right side of the slider (8) is greater than a threshold value, the vehicle (1) turns left, and the centrifugal force applied to the CT main unit (5) is opposite to the turning direction of the vehicle (1). At this time, the hydraulic cylinder (2) on the right side extends, and the hydraulic cylinder (2) on the left side contracts. When the pressure value measured by the pressure sensor (10) on the left side of the slider (8) is greater than a threshold value, the vehicle (1) turns right, and the centrifugal force applied to the CT main unit (5) is opposite to the turning direction of the vehicle (1). At this time, the hydraulic cylinder (2) on the right side contracts, and the hydraulic cylinder (2) on the left side extends.

5. The vehicle-mounted CT system according to claim 3, characterized in that: The rotating shaft (4) is sleeved with a bearing, which is embedded in the inner wall of the adjustment cavity (6).

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