Tool for calibrating CT (Computed Tomography) external laser lamp

Abstract

The utility model discloses a tool for calibrating a CT (Computed Tomography) external laser lamp, which belongs to the technical field of CT equipment and is characterized in that a first datum line and a second datum line are arranged on the surface of a calibration cylinder, a leveling instrument platform is arranged at one end of the calibration cylinder, a positioning rod is fixedly connected to the other end of the calibration cylinder, and a first spring washer and a mounting plate are movably sleeved on the surface of the positioning rod; according to the tool for calibrating the CT external laser lamp, through two side holes formed in a mounting plate, two connecting rods arranged on two connecting arms, a second adjusting sleeve and a third adjusting sleeve, the mounting plate has a rotary adjusting function, and then the horizontal position of a calibration cylinder is adjusted; and through a center hole formed in the mounting plate and a positioning rod and a first adjusting sleeve arranged on the calibration barrel, the calibration barrel has a rotating function, the position of the leveling instrument platform is adjusted, the positioning speed of the calibration tool is greatly increased, and the calibration efficiency of the CT external laser lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CT equipment, and more specifically to a tool for calibrating an external laser lamp of a CT. Background Art

[0002] CT, or computer tomography, uses precisely collimated X-ray beams, gamma rays, ultrasound, etc., together with highly sensitive detectors to perform cross-sectional scans one after another around a certain part of the human body. It has the characteristics of fast scanning time and clear images, and can be used for the examination of various diseases. In order to meet the requirements of CT detection and positioning, multiple CT external laser lights are calibrated through calibration tools. However, after the calibration tool is installed on the CT frame, it cannot adjust the horizontal position and rotation angle, thereby reducing the calibration efficiency of the CT external laser light.

[0003] For example, a CT rack laser lamp rapid positioning device disclosed in announcement number CN109014887A includes a crossbeam, positioning and mounting structures are provided at both ends of the crossbeam, a transparent tube is provided in the middle of the crossbeam, one end of the transparent tube is positioned and fixed to the crossbeam, a plurality of groups of centrally symmetrical first reference lines are provided on the circumferential side walls of the transparent tube, and second reference lines surrounding the transparent tube are provided on the circumferential side walls at both ends of the transparent tube.

[0004] It can be seen from the above-mentioned public solution that the transparent tube is fixed to the crossbeam by positioning pins and fixing screws, but the fixed transparent tube cannot be adjusted in horizontal position, and the horizontal position of the platform cannot be rotated to adjust, which increases the positioning time and reduces the calibration efficiency of the CT external laser light. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tool for calibrating a CT external laser light. The tool for calibrating a CT external laser light enables the mounting plate to have a rotation adjustment function through two side holes provided on the mounting plate, two connecting rods provided on the two connecting arms, and a second adjustment sleeve and a third adjustment sleeve, thereby adjusting the horizontal position of the calibration cylinder. The calibration cylinder is enabled to have a rotation function through the center hole provided on the mounting plate, the positioning rod provided on the calibration cylinder, and the first adjustment sleeve, thereby adjusting the position of the level ruler platform, thereby greatly improving the positioning speed of the calibration tool and improving the calibration efficiency of the CT external laser light.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A tool for calibrating a CT external laser light comprises a calibration cylinder, wherein a first reference line and a second reference line are arranged on the surface of the calibration cylinder, a level platform is arranged at one end of the calibration cylinder, a positioning rod is fixedly connected to the other end of the calibration cylinder, a first spring pad and a mounting plate are movably sleeved on the surface of the positioning rod, a first adjustment sleeve is threadedly connected to the surface of the positioning rod, a first connecting arm and a second connecting arm are detachably connected to the two sides of the mounting plate, one end of the first connecting arm is fixedly connected to the first connecting rod, a second adjustment sleeve is threadedly connected to the surface of the first connecting rod, one end of the second connecting arm is fixedly connected to the second connecting rod, and a third adjustment sleeve is threadedly connected to the surface of the second connecting rod. The tool for calibrating a CT external laser light enables the mounting plate to have a rotation adjustment function through two side holes arranged on the mounting plate and two connecting rods arranged on the two connecting arms, and the second adjustment sleeve and the third adjustment sleeve, thereby adjusting the horizontal position of the calibration cylinder, and enables the calibration cylinder to have a rotation function through a center hole arranged on the mounting plate and the positioning rod and the first adjustment sleeve arranged on the calibration cylinder, thereby adjusting the position of the level platform, thereby greatly improving the positioning speed of the calibration tool and improving the calibration efficiency of the CT external laser light.

[0008] Furthermore, the surfaces of the first connecting rod and the second connecting rod are both sleeved with second elastic washers, the second elastic washers and the first elastic washers are both circular, the second elastic washers and the first elastic washers are both made of elastic and extrusion-resistant rubber, the second elastic washers and the first elastic washers are in a state of compressed elastic force, and have a buffering and shock-absorbing effect.

[0009] Furthermore, the cross-sectional shape of the mounting plate is U-shaped, a center hole is provided at the center position of the mounting plate, the inner wall of the center hole is in contact and connected with the surface of the positioning rod, and the surface of the positioning rod is provided with an external thread, which facilitates the rapid positioning of the positioning rod and the subsequent adjustment and rotation.

[0010] Furthermore, the first adjustment sleeve, the second adjustment sleeve and the third adjustment sleeve are all provided with an extrusion portion, a threaded hole and an anti-slip bump, and the cross-sectional shape of the anti-slip bump is semicircular, which is convenient for manual rotation of the first adjustment sleeve, the second adjustment sleeve and the third adjustment sleeve.

[0011] Furthermore, a threaded hole is provided at one end of the positioning rod, and a screw is threadedly connected to the inner wall of the threaded hole, and an anti-skid protrusion is extruded on the surface of the screw, which facilitates manual rotation of the positioning rod and then rotation of the calibration cylinder.

[0012] Furthermore, the anti-skid protrusion is in the shape of a polygon, and a countersunk hole is provided on the side of the anti-skid protrusion, so that the anti-skid protrusion has the function of being disassembled and assembled, and will not affect the assembly and disassembly of the positioning rod.

[0013] Furthermore, a first side hole and a second side hole which are concentric and coaxial are provided on both sides of the mounting plate, so as to facilitate the mounting and positioning with two connecting rods.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In this solution, the mounting plate has the function of rotational adjustment through two side holes provided on the mounting plate, two connecting rods provided on the two connecting arms, and the second adjustment sleeve and the third adjustment sleeve, thereby adjusting the horizontal position of the calibration cylinder.

[0016] (2) This solution enables the calibration tube to rotate by means of the center hole provided on the mounting plate, the positioning rod provided on the calibration tube, and the first adjustment sleeve, thereby adjusting the position of the level platform, thereby greatly improving the positioning speed of the calibration tool and the calibration efficiency of the CT external laser light. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the mounting plate structure of the utility model;

[0019] Figure 3 This is a side view of the first adjustment sleeve structure of the utility model;

[0020] Figure 4 It is a front view of the first connecting arm and the first connecting rod structure of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1 calibration cylinder, 11 first reference line, 12 second reference line, 13 level ruler platform, 14 positioning rod, 15 anti-slip block, 2 first spring washer, 3 mounting plate, 31 center hole, 32 first side hole, 33 second side hole, 4 first connecting arm, 41 first connecting rod, 42 second spring washer, 5 second connecting arm, 51 second connecting rod, 6 first adjusting sleeve, 61 extrusion part, 62 threaded hole, 63 anti-slip bump, 7 second adjusting sleeve, 8 third adjusting sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-4 A tool for calibrating a CT external laser light comprises a calibration tube 1, which is a transparent cylinder. A first reference line 11 and a second reference line 12 are arranged on the surface of the calibration tube 1. The first reference line 11 and the second reference line 12 are used to calibrate the CT external laser light at different positions. The adjustment method and principle thereof are well known to those skilled in the art and will not be described in detail herein. A level platform 13 is arranged at one end of the calibration tube 1, and a positioning rod 14 is fixedly connected to the other end of the calibration tube 1. A first spring pad 2 and a mounting plate 3 are movably sleeved on the surface of the positioning rod 14. A first adjustment sleeve 6 is threadedly connected to the surface of the positioning rod 14, and the mounting plate 3 is threadedly connected to the first adjustment sleeve 6. 3 is provided with a first side hole 32 and a second side hole 33 which are concentric and coaxial, so as to facilitate installation and positioning with two connecting rods. The first connecting arm 4 and the second connecting arm 5 are detachably connected to the two sides of the mounting plate 3, respectively. The first connecting arm 4 and the second connecting arm 5 are connected to the CT frame assembly, so as to facilitate fixing the position of the calibration cylinder 1, and then quickly calibrate the CT external laser light. One end of the first connecting arm 4 is fixedly connected to the first connecting rod 41, and the surface of the first connecting rod 41 is connected to the second adjusting sleeve 7 by threading. One end of the second connecting arm 5 is fixedly connected to the second connecting rod 51, and the surface of the second connecting rod 51 is connected to the third adjusting sleeve 8 by threading.

[0026] The surfaces of the first connecting rod 41 and the second connecting rod 51 are both sleeved with the second spring washer 42, and the second spring washer 42 and the first spring washer 2 are both annular in shape. The second spring washer 42 and the first spring washer 2 are both made of elastic and extrusion-resistant rubber. The second spring washer 42 and the first spring washer 2 are in a state of compressed elastic force, and have the effect of buffering and shock absorption. The cross-sectional shape of the mounting plate 3 is U-shaped, and a center hole 31 is provided at the center position of the mounting plate 3. The inner wall of the center hole 31 is in contact and connected with the surface of the positioning rod 14, and the surface of the positioning rod 14 is provided with an external thread, which is convenient for the rapid positioning of the positioning rod 14 and the subsequent adjustment and rotation.

[0027] The first adjustment sleeve 6, the second adjustment sleeve 7 and the third adjustment sleeve 8 are all provided with an extrusion portion 61, a threaded hole 62 and an anti-slip protrusion 63. The cross-sectional shape of the anti-slip protrusion 63 is semicircular, which is convenient for manual rotation of the first adjustment sleeve 6, the second adjustment sleeve 7 and the third adjustment sleeve 8. One end of the positioning rod 14 is provided with a threaded hole, and the inner wall of the threaded hole is connected with a screw through a thread. The surface of the screw is contacted and extruded with an anti-slip protrusion 63. The anti-slip protrusion 63 facilitates manual rotation of the positioning rod 14 and then rotates the calibration cylinder 1. The shape of the anti-slip protrusion 63 is polygonal, and the side of the anti-slip protrusion 63 is provided with a countersunk hole, which can avoid that the anti-slip protrusion 63 has the function of disassembly and assembly, and will not affect the assembly and disassembly of the positioning rod 14.

[0028] When installing the tool for calibrating the CT external laser light, first, plug the first positioning rod 14 provided at one end of the calibration cylinder 1 into the center hole 31 provided on the mounting plate 3, then manually tighten the first adjusting sleeve 6 clockwise to fix the position of the calibration cylinder 1 by the extrusion force, then plug the first connecting rod 41 provided on the first connecting arm 4 into the first side hole 32, then tighten it clockwise through the second adjusting sleeve 7, plug the second connecting rod 51 provided on the second connecting arm 5 into the second side hole 33, then tighten it through the third adjusting sleeve 8, when adjusting the horizontal position of the calibration cylinder 1, by loosening the second adjusting sleeve 7 and the third adjusting sleeve 8, the mounting plate 3 can be rotated, thereby adjusting the horizontal position of the calibration cylinder 1, and the positioning rod 1 is rotated by loosening the first adjusting sleeve 6. 4 is used to adjust the horizontal position of the level ruler platform 13 on the surface of the calibration cylinder 1. After the calibration cylinder 1 is positioned, each CT external laser lamp can be calibrated through the first reference line 11 and the second reference line 12. Through the two side holes provided on the mounting plate 3 and the two connecting rods provided on the two connecting arms, as well as the second adjustment sleeve 7 and the third adjustment sleeve 8, the mounting plate 3 has a rotation adjustment function, thereby adjusting the horizontal position of the calibration cylinder 1. Moreover, through the central hole 31 provided on the mounting plate 3 and the positioning rod 14 provided on the calibration cylinder 1 and the first adjustment sleeve 6, the calibration cylinder 1 has a rotation function, thereby adjusting the position of the level ruler platform 13, thereby greatly improving the positioning speed of the calibration tool and improving the calibration efficiency of the CT external laser lamp.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A tool for calibrating a CT external laser lamp, comprising a calibration cylinder (1), a surface of the calibration cylinder (1) being provided with a first reference line (11) and a second reference line (12), and one end of the calibration cylinder (1) being provided with a level ruler platform (13), characterized in that: The other end of the calibration cylinder (1) is fixedly connected to a positioning rod (14), the surface of the positioning rod (14) is movably sleeved with a first spring washer (2) and a mounting plate (3), the surface of the positioning rod (14) is threadedly connected to a first adjustment sleeve (6), the two sides of the mounting plate (3) are detachably connected to a first connecting arm (4) and a second connecting arm (5), one end of the first connecting arm (4) is fixedly connected to a first connecting rod (41), the surface of the first connecting rod (41) is threadedly connected to a second adjustment sleeve (7), one end of the second connecting arm (5) is fixedly connected to a second connecting rod (51), the surface of the second connecting rod (51) is threadedly connected to a third adjustment sleeve (8).

2. A tool for calibrating a CT external laser lamp according to claim 1, characterized in that: The surfaces of the first connecting rod (41) and the second connecting rod (51) are both sleeved with a second elastic washer (42); the second elastic washer (42) and the first elastic washer (2) are both annular; and the second elastic washer (42) and the first elastic washer (2) are both made of elastic, extrusion-resistant rubber.

3. A tool for calibrating a CT external laser lamp according to claim 1, characterized in that: The cross-sectional shape of the mounting plate (3) is U-shaped, a center hole (31) is provided at the center position of the mounting plate (3), the inner wall of the center hole (31) is in contact with the surface of the positioning rod (14), and the surface of the positioning rod (14) is provided with an external thread.

4. A tool for calibrating a CT external laser lamp according to claim 1, characterized in that: The first adjustment sleeve (6), the second adjustment sleeve (7) and the third adjustment sleeve (8) are all provided with a pressing portion (61), a threaded hole (62) and an anti-slip bump (63); the cross-sectional shape of the anti-slip bump (63) is semicircular.

5. The tool for calibrating a CT external laser lamp according to claim 1, characterized in that: One end of the positioning rod (14) is provided with a threaded hole, and the inner wall of the threaded hole is connected to a screw via a thread, and the surface of the screw is contacted and extruded with an anti-slip bump (63).

6. A tool for calibrating a CT external laser lamp according to claim 5, characterized in that: The anti-skid protrusion (63) is in the shape of a polygon, and a countersunk hole is provided on the side surface of the anti-skid protrusion (63).

7. The tool for calibrating a CT external laser lamp according to claim 1, characterized in that: The mounting plate (3) is provided with a first side hole (32) and a second side hole (33) which are concentric and coaxial on both sides.

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