Multi-degree-of-freedom adjusting and fixing device of flat panel detector

Abstract

The utility model discloses a multi-degree-of-freedom adjusting and fixing device of a flat panel detector, and belongs to the technical field of medical instruments. A multi-degree-of-freedom adjusting and fixing device of a flat panel detector comprises a hoisting plate, a height adjusting mechanism is installed on the lower portion of the hoisting plate, the height adjusting mechanism comprises a supporting frame, a threaded rod and a driven gear, the supporting frame and the hoisting plate are installed and fixed, the threaded rod is rotationally connected with the supporting frame, and the driven gear is fixedly installed at the top end of the threaded rod. The lower portion of the threaded rod is in threaded connection with a supporting arm, and the lower end of the supporting arm is rotationally connected with a connecting plate. By arranging the hoisting plate, the flat panel detector can be hoisted on the ceiling, occupation of the ground space is avoided, the situation that the flat panel detector is interfered is reduced, and meanwhile by arranging the length adjusting mechanism, a user can adjust the installation height of the flat panel detector on the ground through a tool.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more specifically, to a multi-degree-of-freedom adjustment and fixation device for a flat panel detector. Background Art

[0002] At present, when radiotherapy equipment conducts image-guided treatment for patients, it is necessary to ensure the relative positions of the X-ray tube and the flat panel detector, and two groups need to be cross-fixed. When the flat panel detector is fixed, it is necessary to ensure that the X-ray emitted by the X-ray tube is evenly received. The flat panel detector fixing device needs to be able to adjust in multiple degrees of freedom to ensure that the center point of the flat panel detector and the center point of the X-ray emission of the X-ray tube are theoretically coincident, and to ensure that the ray boundary of the X-ray tube and the ray receiving boundary of the flat panel detector are theoretically coincident, so as to ensure higher image quality of the patient.

[0003] After retrieval, the patent document with the existing publication number CN209916027U provides an indirect flat panel detector. This device is fixedly welded with a hook on the other surface of the detector. By snapping the hook into the inner cavity of the fixing ring on the surface of the fixing disk and rotating the detector, the hook rotates within the fixing ring, thereby fixedly installing the detector on the surface of the fixing disk. The connection is made by combining the hook and the fixing disk, making the installation and disassembly very convenient and labor-saving.

[0004] The above device installs the detector in a floor-standing manner. Although it is convenient to use the detector, it will affect the passability of the ground, and the detector is easily touched, resulting in the displacement of the position of the flat panel detector and affecting the reception of X-rays by the flat panel detector. In view of this, we propose a multi-degree-of-freedom adjustment and fixation device for a flat panel detector. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] The purpose of the present application is to provide a multi-degree-of-freedom adjustment and fixation device for a flat panel detector to solve the problems raised in the above background art.

[0007] 2. Technical Solutions

[0008] The present application is achieved through the following technical solutions:

[0009] A multi-degree-of-freedom adjustment and fixation device for a flat panel detector includes a hoisting plate. A height adjustment mechanism is installed below the hoisting plate. The height adjustment mechanism includes a support frame, a threaded rod, and a driven gear. The support frame is fixedly installed with the hoisting plate. The threaded rod is rotatably connected to the support frame. The driven gear is fixedly installed at the top of the threaded rod. A support arm is threadedly connected to the lower part of the threaded rod. The lower end of the support arm is rotatably connected to a connecting plate.

[0010] As an alternative solution to the technical solution of this application document, the height adjustment mechanism further includes a drive shaft and a driving gear. The drive shaft is rotatably connected to the support frame, the driving gear is fixedly connected to the drive shaft, and the driving gear is meshed with the driven gear.

[0011] As an alternative solution to the technical solution of this application document, a guide tube is fixedly connected to the lower part of the support frame. The guide tube is sleeved outside the support arm, the support arm is slidably connected to the guide tube, an external thread is provided on the outer side of the threaded rod, and the support arm is sleeved outside the threaded rod.

[0012] As an alternative solution to the technical solution of this application document, the lower end of the drive shaft extends to the outside of the support frame, and the lower end of the drive shaft is prismatically arranged.

[0013] As an alternative solution to the technical solution of this application document, a first hinge support is fixedly installed at the lower part of the support arm, a second hinge support is rotatably connected to the upper part of the connecting plate, and the first hinge support is rotatably connected to the second hinge support.

[0014] As an alternative solution to the technical solution of this application document, a fixing plate is slidably connected below the connecting plate. A first threaded rod is rotatably connected to the fixing plate. The first threaded rod is threadedly connected to the connecting plate. At least two mutually perpendicular clamping plates are fixedly connected to the side surface of the fixing plate.

[0015] As an alternative solution to the technical solution of this application document, the hoisting plate includes a top plate, a first adjusting plate, and a second adjusting plate. The first adjusting plate is slidably connected to the top plate, the second adjusting plate is slidably connected to the first adjusting plate. A second threaded rod is rotatably connected to the surface of the top plate. The second threaded rod is threadedly connected to the first adjusting plate. A third threaded rod is threadedly connected to the surface of the first adjusting plate. The third threaded rod is threadedly connected to the second adjusting plate. The second threaded rod and the third threaded rod are orthogonal to each other, and the support frame is fixedly installed with the second adjusting plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this application are as follows:

[0018] 1) By setting the hoisting plate in this application, the flat panel detector can be hoisted on the ceiling, avoiding the occupation of the ground space, reducing the interference of the flat panel detector, and at the same time, by setting the length adjustment mechanism, the user can adjust the installation height of the flat panel detector on the ground with tools, increasing the convenience of using this device.

[0019] 2) By providing the second threaded rod and the third threaded rod on the hoisting plate, the present application can adjust the position of the flat panel detector through the second threaded rod and the third threaded rod when there is a deviation in the installation position of the top plate, reducing the requirement of the device for installation accuracy, and can finely adjust the flat panel detector through the first threaded rod, which is beneficial to increasing the installation accuracy of the flat panel detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an overall structural schematic diagram of a multi-degree-of-freedom adjustment and fixing device for a flat panel detector;

[0021] Figure 2 is a schematic diagram of the height adjustment mechanism of a multi-degree-of-freedom adjustment and fixing device for a flat panel detector;

[0022] Figure 3 is a schematic diagram of the connecting plate of a multi-degree-of-freedom adjustment and fixing device for a flat panel detector;

[0023] In the figure: 1. Hoisting plate; 101. Top plate; 102. First adjustment plate; 103. Second adjustment plate; 104. Second threaded rod; 105. Third threaded rod; 2. Length adjustment mechanism; 201. Support frame; 202. Threaded rod; 203. Driven gear; 204. Drive shaft; 205. Driving gear; 206. Guide tube; 3. Support arm; 301. First hinge support; 4. Connecting plate; 401. Fixed plate; 402. First threaded rod; 403. Clamping plate; 404. Second hinge support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] Please refer to Figure 1 , the present application provides a multi-degree-of-freedom adjustment and fixing device for a flat panel detector, including a hoisting plate 1, a height adjustment mechanism 2 is installed below the hoisting plate 1, the height adjustment mechanism 2 includes a support frame 201, a threaded rod 202, and a driven gear 203. The support frame 201 is fixedly installed with the hoisting plate 1, the threaded rod 202 is rotatably connected with the support frame 201, the driven gear 203 is fixedly installed at the top end of the threaded rod 202, a support arm 3 is threadedly connected to the lower part of the threaded rod 202, and the lower end of the support arm 3 is rotatably connected to a connecting plate 4.

[0026] As Figure 2As shown in the figure, the hoisting plate 1 includes a top plate 101, a first adjusting plate 102, and a second adjusting plate 103. The first adjusting plate 102 is slidably connected to the top plate 101, and the second adjusting plate 103 is slidably connected to the first adjusting plate 102. A second threaded rod 104 is rotatably connected to the surface of the top plate 101. The second threaded rod 104 is threadedly connected to the first adjusting plate 102. A third threaded rod 105 is threadedly connected to the surface of the first adjusting plate 102. The third threaded rod 105 is threadedly connected to the second adjusting plate 103. The second threaded rod 104 and the third threaded rod 105 are orthogonal to each other. The support frame 201 is fixedly installed on the second adjusting plate 103. Adjust the first adjusting plate 102 to the middle position of the second threaded rod 104, and adjust the second adjusting plate 103 to the middle position of the third threaded rod 105. Then, install the top plate 101 on the ceiling through expansion bolts. Move the connecting plate 4 to the designated position by adjusting the second threaded rod 104 and the second adjusting plate 103. Then, install the flat panel detector on the connecting plate 4.

[0027] The height adjusting mechanism 2 further includes a driving shaft 204 and a driving gear 205. The driving shaft 204 is rotatably connected to the support frame 201. The driving gear 205 is fixedly connected to the driving shaft 204. The driving gear 205 is meshed with the driven gear 203. The lower end of the driving shaft 204 extends to the outside of the support frame 201. The lower end of the driving shaft 204 is prismatically arranged. A guide tube 206 is fixedly connected to the lower part of the support frame 201. The guide tube 206 is sleeved on the outside of the support arm 3. The support arm 3 is slidably connected to the guide tube 206. An external thread is provided on the outside of the threaded rod 202. The support arm 3 is sleeved on the outside of the threaded rod 202.

[0028] The user can insert an external tool into the lower end of the driving shaft 204 and rotate the driving shaft 204. The driving gear 205 and the driven gear 203 can be used to drive the threaded rod 202 to rotate, thereby pushing the support arm 3 to slide in the guide tube 206, realizing the height adjustment of the flat panel detector installed on the connecting plate 4. Since the above adjustment structures all adopt threaded drive, the self-locking characteristic of the thread can be utilized to keep the position of the connecting plate 4 stable and avoid the position of the flat panel detector on the connecting plate 4 from shifting.

[0029] As Figure 3 shown, a first hinge support 301 is fixedly installed on the lower part of the support arm 3. A second hinge support 404 is rotatably connected to the upper part of the connecting plate 4. The first hinge support 301 is rotatably connected to the second hinge support 404. The user can change the orientation of the connecting plate 4 by rotating the second hinge support 404 and lock the positions of the first hinge support 301 and the second hinge support 404 by tightening the nut. The user can also rotate the connecting plate 4 relative to the second hinge support 404 to change the installation direction of the connecting plate 4 and lock the positions of the second hinge support 404 and the connecting plate 4 by tightening the nut, realizing the adjustment of the installation position of the flat panel detector.

[0030] A fixing plate 401 is slidably connected below the connecting plate 4. A first threaded rod 402 is rotatably connected to the fixing plate 401. The first threaded rod 402 is threadedly connected to the connecting plate 4. At least two mutually perpendicular clamping plates 403 are fixedly connected to the side surface of the fixing plate 401. The user can fix the flat panel detector on the surface of the fixing plate 401 through the clamping plates 403 to realize the installation of the flat panel detector, and can finely adjust the position of the flat panel detector by rotating the first threaded rod 402 to ensure the installation accuracy of the flat panel detector.

[0031] Moreover, scales are provided at the degree-of-freedom adjustment part of the device, which facilitates the flat panel detector to quickly return to its original position after being disturbed.

Claims

1. A multi-degree-of-freedom adjustment and fixing device for a flat panel detector, characterized in that: It includes a lifting plate (1), a height adjusting mechanism (2) is installed at the lower part of the lifting plate (1), and the height adjusting mechanism (2) includes a support frame (201), a threaded rod (202), and a driven gear (203). The support frame (201) is fixedly installed with the lifting plate (1), the threaded rod (202) is rotatably connected with the support frame (201), the driven gear (203) is fixedly installed at the top end of the threaded rod (202), a support arm (3) is threadedly connected to the lower part of the threaded rod (202), and the lower end of the support arm (3) is rotatably connected with a connecting plate (4).

2. The multi-degree-of-freedom adjustment and fixing device of a flat panel detector according to claim 1, characterized in that: The height adjusting mechanism (2) further includes a drive shaft (204) and a driving gear (205). The drive shaft (204) is rotatably connected with the support frame (201), the driving gear (205) is fixedly connected with the drive shaft (204), and the driving gear (205) is meshed and connected with the driven gear (203).

3. The multi-degree-of-freedom adjustment and fixing device for a flat panel detector according to claim 1, characterized in that: A guide tube (206) is fixedly connected to the lower part of the support frame (201). The guide tube (206) is sleeved outside the support arm (3), the support arm (3) is slidably connected with the guide tube (206), an external thread is provided on the outside of the threaded rod (202), and the support arm (3) is sleeved outside the threaded rod (202).

4. The multi-degree-of-freedom adjustment and fixing device for a flat panel detector according to claim 2, characterized in that: The lower end of the drive shaft (204) extends outside the support frame (201), and the lower end of the drive shaft (204) is prismatically arranged.

5. A multi-degree-of-freedom adjustment and fixation device for a flat panel detector according to claim 1, characterized in that: A first hinge support (301) is fixedly installed at the lower part of the support arm (3), a second hinge support (404) is rotatably connected to the upper part of the connecting plate (4), and the first hinge support (301) is rotatably connected with the second hinge support (404).

6. The multi-degree-of-freedom adjustment and fixing device for a flat panel detector according to claim 1, wherein: A fixing plate (401) is slidably connected below the connecting plate (4). A first threaded rod (402) is rotatably connected to the fixing plate (401), the first threaded rod (402) is threadedly connected with the connecting plate (4), and at least two mutually perpendicular clamping plates (403) are fixedly connected to the side surface of the fixing plate (401).

7. A multi-degree-of-freedom adjustment and fixing device for a flat panel detector according to claim 1, characterized in that: The lifting plate (1) includes a top plate (101), a first adjusting plate (102), and a second adjusting plate (103). The first adjusting plate (102) is slidably connected with the top plate (101), the second adjusting plate (103) is slidably connected with the first adjusting plate (102), a second threaded rod (104) is rotatably connected to the surface of the top plate (101), the second threaded rod (104) is threadedly connected with the first adjusting plate (102), a third threaded rod (105) is threadedly connected to the surface of the first adjusting plate (102), the third threaded rod (105) is threadedly connected with the second adjusting plate (103), the second threaded rod (104) is orthogonal to the third threaded rod (105), and the support frame (201) is fixedly installed with the second adjusting plate (103).

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