An imaging chain driving device

Abstract

The present invention relates to the field of image chain adjustment technology, and discloses an image chain driving device, including: a housing, a bracket is provided inside the housing, a ray emitting end is provided at one end of the bracket, a detector receiving end is provided at the other end of the bracket, an arc driving component for driving the detector receiving end to move in an arc is installed on the bracket, a rotating component for driving the ray emitting end to rotate is installed on the bracket, and a control box for controlling the working state of the arc driving component and the rotating component is provided on the bracket. Since the control box plays a control role, the detector receiving end is driven to move in an arc through the arc driving section, and the rotating component drives the ray emitting end to rotate, thereby providing an image chain driving device, which is easy to install, has a low process cost, and the offset distance between the SDD and the detector can be dynamically adjusted to realize the imaging functions of multiple SDDs, and improve the imaging quality, and has stronger functional expansibility.

Description

Technical Field

[0001] The present invention relates to the technical field of image chain adjustment, and in particular to an image chain driving device. Background Art

[0002] In the prior art, CBCT is a cone beam CT, which is a cone beam projection computerized reconstruction tomography device. SDD is the distance from the focus of the radiation source to the receiving surface of the detector. However, due to the structure of the driving device of the imaging chain, the offset distance between SDD and the detector is fixed and cannot be adjusted, which affects the use of the imaging function.

[0003] Therefore, how to provide an image chain driving device to facilitate the adjustment of the SDD and detector offset distance has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to provide an image chain driving device to facilitate the adjustment of the SDD and the detector offset distance.

[0005] To this end, according to a first aspect, an embodiment of the present invention discloses an image chain driving device, comprising: a shell, a bracket is provided in the shell, one end of the bracket is provided with a ray emitting end, the other end of the bracket is provided with a detector receiving end, an arc driving component for driving the detector receiving end to move in an arc is installed on the bracket, a rotating component for driving the ray emitting end to rotate is installed on the bracket, and a control box for controlling the working states of the arc driving component and the rotating component is provided on the bracket.

[0006] The present invention is further configured such that the rotating assembly includes a rotating shaft passing through the bracket and a rotating motor, the rotating motor is fixedly connected to the bracket, one end of the rotating shaft is fixedly connected to the output shaft of the rotating motor, and the other end of the rotating shaft is fixedly connected to the ray emitting end.

[0007] The present invention is further configured such that a first slot switch is mounted on the bracket.

[0008] The present invention is further configured such that a receiving plate for receiving imaging is provided in the receiving end of the detector, and the receiving plate is arranged parallel to the ray emitting end.

[0009] The present invention is further configured such that the arc driving assembly includes a driving base plate, an arc guide rail is installed on the driving base plate, a first slider is slidably connected to the arc guide rail, the first slider is connected to the detector receiving end, and a driving motor is provided on the driving base plate for driving the first slider to slide.

[0010] The present invention is further configured as follows: a screw is provided on the driving motor, a second slider is sleeved on the outer side of the screw, a linear slide rail is provided on the driving base plate and is slidably connected to the second slider, a first connecting rod is fixedly connected to the second slider, the first connecting rod is hinged to the second connecting rod, and the second connecting rod is hinged to the first slider.

[0011] The present invention is further configured such that a second slot switch is installed on the driving bottom plate.

[0012] The present invention is further configured such that the side wall of the driving base plate is arranged in an arc shape, and the first sliding block is arranged in an L shape.

[0013] The present invention has the following beneficial effects: since the control box plays a controlling role, the arc driving section drives the detector receiving end to move in an arc shape, and the rotating component drives the ray emitting end to rotate, thereby providing an image chain driving device, which is easy to install, has a low process cost, is convenient for adjusting the SDD and detector offset distance, improves the imaging quality, and has stronger functional expansibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of an image chain driving device disclosed in this embodiment;

[0016] Figure 2 is a partial structural diagram of an image chain driving device disclosed in this embodiment;

[0017] Figure 3 It is a structural schematic diagram of an arc driving component in an image chain driving device disclosed in this embodiment.

[0018] Figure numerals: 1. housing; 2. bracket; 3. ray emitting end; 4. detector receiving end; 5. arc driving assembly; 501. driving base plate; 502. arc guide rail; 503. first slider; 504. driving motor; 505. screw rod; 506. second slider; 507. linear guide rail; 508. first connecting rod; 509. second connecting rod; 510. second slot switch; 6. rotating assembly; 61. rotating shaft; 62. rotating motor; 63. first slot switch; 7. control box. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "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, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] The embodiment of the present invention discloses an image chain driving device, such as Figure 1 and Figure 2 As shown, it comprises: a housing 1, a bracket 2 is arranged inside the housing 1, a ray emitting end 3 is arranged at one end of the bracket 2, a detector receiving end 4 is arranged at the other end of the bracket 2, an arc driving component 5 for driving the detector receiving end 4 to move in an arc is installed on the detector bracket 2, a rotating component 6 for driving the ray emitting end 3 to rotate is installed on the bracket 2, and a control box 7 for controlling the working state of the arc driving component 5 and the rotating component 6 is arranged on the bracket 2. In the specific implementation process, the distance between the end face center line of the detector receiving end 4 and the focus center line of the ray receiving end is the offset distance of the detector.

[0024] It should be noted that since the control box 7 plays a controlling role, the detector receiving end 4 is driven to move in an arc shape through the arc driving interval, and the rotating component 6 drives the ray emitting end 3 to rotate, thereby providing an image chain driving device, which is easy to install, has a low process cost, is convenient for adjusting the SDD and detector offset distance, improves the imaging quality, and has stronger functional expandability.

[0025] like Figure 1 and Figure 2 As shown, the rotating assembly 6 includes a rotating shaft 61 passing through the bracket 2 and a rotating motor 62. The rotating motor 62 is fixedly connected to the bracket 2, one end of the rotating shaft 61 is fixedly connected to the output shaft of the rotating motor 62, and the other end of the rotating shaft 61 is fixedly connected to the ray emitting end 3.

[0026] It should be noted that, through the rotation of the rotating motor 62, the rotating shaft 61 is driven to rotate, so that the ray emitting end 3 rotates around the axis, thereby facilitating the adjustment of the SDD value and the offset distance.

[0027] like Figure 1 and Figure 2 As shown, a first slot switch 63 is installed on the bracket 2. In the specific implementation process, the number of the first slot switches 63 is set to two, and the working state of the rotating motor 62 can be controlled by the control function of the first slot switch 63.

[0028] like Figure 1 and Figure 2 As shown, a receiving plate for receiving imaging is provided in the detector receiving end 4, and the receiving plate is arranged in parallel with the ray emitting end 3. It should be noted that since the receiving plate is arranged in parallel with the ray emitting end 3, it is convenient for the detector receiving end 4 to receive images and improve the imaging quality.

[0029] like Figure 2 and Figure 3 As shown, the arc driving assembly 5 includes a driving base plate 501, on which an arc guide rail 502 is mounted, on which a first slider 503 is slidably connected, and the first slider 503 is connected to the detector receiving end 4. The driving base plate 501 is provided with a driving motor 504 for driving the first slider 503 to slide. In the specific implementation process, the driving base plate 501 is fixedly connected to the bracket 2. The driving motor 504 provides driving power to the first slider 503, so that the first slider 503 is on the arc guide rail 502 and drives the detector receiving end 4 to move in an arc.

[0030] It should be noted that the thickness of the ray receiving end is reduced under the same volume through arc driving, which solves the problems of messy wiring, inconvenient user operation and large positioning error in the prior art; and reduces the installation process of the ray transmitting end 3, reduces the rotation variable and improves the positioning accuracy of the ray receiving end, thereby improving the image quality of the product and the scalability of its functions.

[0031] like Figure 2 and Figure 3 As shown, a screw rod 505 is provided on the driving motor 504, a second slider 506 is sleeved on the outer side of the screw rod 505, a linear slide rail 507 slidably connected to the second slider 506 is provided on the driving base plate 501, a first connecting rod 508 is fixedly connected to the second slider 506, the first connecting rod 508 is hinged to the second connecting rod 509, and the second connecting rod 509 is hinged to the first slider 503.

[0032] It should be noted that, through the driving action of the driving motor 504, the lead screw 505 is driven to rotate, so that the second slider 506 slides on the linear slide rail 507, and then through the transmission of the first connecting rod 508 and the second connecting rod 509, the second slider 506 is driven to slide on the arc guide rail 502. Since the second slider 506 is connected to the detector receiving end 4, the detector receiving end 4 rotates in an arc.

[0033] It should also be noted that the distance between the end face center line of the detector receiving end 4 and the focus center line of the ray receiving end is the offset distance of the detector. According to the preset SDD value and offset distance value, the ray emitting end 3 is driven to rotate through the rotating component 6 and rotated to a preset angle, and then the detector receiving end 4 is driven to move in an arc through the arc driving component 5. When the receiving plate is parallel to the ray emitting end 3, the detector receiving end 4 stops moving in an arc, thereby realizing SDD and offset distance adjustment, making the imaging function more comprehensive, the scalability application more extensive, improving the ray utilization rate, and improving the imaging quality.

[0034] like Figure 2 and Figure 3 As shown, a second slot switch 510 is installed on the driving bottom plate 501. It should be noted that the number of the second slot switches 510 is set to two, and the setting of the second slot switch 510 facilitates the control of the working state of the driving motor 504.

[0035] like Figure 2 and Figure 3 As shown, the side wall of the driving base plate 501 is arranged in an arc shape, and the first slider 503 is arranged in an L shape. It should be noted that since the side wall of the driving base plate 501 is arranged in an arc shape and the first slider 503 is arranged in an L shape, it is convenient to drive the detector receiving end 4 to move in an arc shape through the first slider 503.

[0036] Working principle: Since the control box 7 plays a controlling role, the detector receiving end 4 is driven to move in an arc through the arc driving interval, and the rotating component 6 drives the ray emitting end 3 to rotate, thereby providing an image chain driving device, which is easy to install, has a low process cost, is convenient to adjust the SDD and detector offset distance, improves the imaging quality, and has stronger functional expansibility.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An image chain driving device, characterized in that: include: A housing (1), wherein a bracket (2) is provided inside the housing (1), a ray emitting end (3) is provided at one end of the bracket (2), a detector receiving end (4) is provided at the other end of the bracket (2), an arc driving component (5) for driving the detector receiving end (4) to move in an arc is installed on the bracket (2), a rotating component (6) for driving the ray emitting end (3) to rotate is installed on the bracket (2), and a control box (7) for controlling the working states of the arc driving component (5) and the rotating component (6) is provided on the bracket (2); The arc driving assembly (5) comprises a driving base plate (501), an arc guide rail (502) is mounted on the driving base plate (501), a first slider (503) is slidably connected to the arc guide rail (502), the first slider (503) is connected to the detector receiving end (4), and a driving motor (504) for driving the first slider (503) to slide is provided on the driving base plate (501); The driving motor (504) is provided with a screw rod (505), the outer side of the screw rod (505) is sleeved with a second slider (506), the driving base plate (501) is provided with a linear slide rail (507) slidably connected to the second slider (506), the second slider (506) is fixedly connected with a first connecting rod (508), the first connecting rod (508) is hinged with a second connecting rod (509), and the second connecting rod (509) is hinged with the first slider (503).

2. The image chain driving device according to claim 1, characterized in that: The rotating assembly (6) comprises a rotating shaft (61) passing through the bracket (2) and a rotating motor (62); the rotating motor (62) is fixedly connected to the bracket (2); one end of the rotating shaft (61) is fixedly connected to an output shaft of the rotating motor (62); and the other end of the rotating shaft (61) is fixedly connected to the ray emitting end (3).

3. The image chain driving device according to claim 2, characterized in that: A first slot-type switch (63) is mounted on the bracket (2).

4. The image chain driving device according to claim 1, characterized in that: A receiving plate for receiving imaging is provided in the detector receiving end (4), and the receiving plate is arranged in parallel with the ray emitting end (3).

5. The image chain driving device according to any one of claims 1 to 4, characterized in that: A second slot-type switch (510) is installed on the driving bottom plate (501).

6. The image chain driving device according to claim 5, characterized in that: The side wall of the driving base plate (501) is arranged in an arc shape, and the first sliding block (503) is arranged in an L shape.

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