Light plastic flash detector adaptive to portable camera

Abstract

The invention relates to the technical field of medical instruments, in particular to a light plastic flash detector adaptive to a portable camera, which comprises a detector, a shell is arranged on one side of the detector, an adjusting mechanism is arranged at the bottom of the detector, a supporting table is arranged at the bottom of the adjusting mechanism, and a reflecting sleeve is arranged in the shell. A plastic scintillator is arranged in the reflection sleeve, one side of the plastic scintillator is provided with a light guide, and one side of the light guide is provided with a plurality of groups of photomultipliers. According to the invention, the connecting plate drives the fixed rod to rotate by a certain angle, the fixed rod rotates to drive the detector to rotate, and the detector rotates to drive the shell to rotate; therefore, fine adjustment is carried out according to different angles needing to be detected, the needed detection angles are adjusted conveniently, rapidly and accurately, the labor intensity of workers is reduced, the working quality of the device is improved in the working process, and the detection effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a lightweight plastic scintillation detector adapted to a portable camera. Background Art

[0002] With the progress of society and the development of science and technology, the types of medical devices are becoming more and more complete. The gamma camera is one of the medical devices. The gamma camera can perform a single imaging of the distribution of radionuclides in the internal organs of the human body, and at the same time can dynamically observe, display, and record the metabolic conditions of radioactive drugs in the internal organs of the human body. Generally, a plastic scintillation detector is required to detect gamma rays.

[0003] Most of the existing plastic scintillation detections are fixed in use. Since most of the internal components are fixedly designed, it is difficult to adjust the detection angle of the detector. During the detection process, it is difficult to adjust according to the detection direction, resulting in the detection result being prone to errors and affecting the detection quality of the device. Summary of the Invention

[0004] The purpose of the present invention is to drive the fixed rod to rotate a certain angle through the connecting plate, the rotation of the fixed rod drives the detector to rotate, and the rotation of the detector drives the housing to rotate, so as to make fine adjustments according to different detection angles required, conveniently and quickly and accurately adjust the required detection angle, reduce the labor intensity of the staff, and improve the working quality of the device during the working process and enhance the detection effect.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lightweight plastic scintillation detector adapted to a portable camera, including a detector, a housing is arranged on one side of the detector, an adjustment mechanism is arranged at the bottom of the detector, a support platform is arranged at the bottom of the adjustment mechanism, a reflection sleeve is arranged inside the housing, a plastic scintillator is arranged inside the reflection sleeve, a light guide is arranged on one side of the plastic scintillator, and multiple photomultiplier tubes are arranged on one side of the light guide;

[0006] The adjustment mechanism includes a first fixed platform fixedly arranged on one side of the support platform, a motor is arranged at one end of the first fixed platform, a first rack is arranged at one end of the motor, a second fixed platform is also arranged on the support platform, a rotating shaft penetrates through the second fixed platform, a first gear meshing with the first rack is arranged on the rotating shaft, a sliding connecting rod is arranged at the bottom of the detector, the sliding connecting rod is movably connected with the second fixed platform, a connecting plate is arranged on one side of the first fixed platform, a fixed rod penetrates through the connecting plate, one end of the fixed rod is fixedly connected with the detector, a sliding groove is also arranged on the fixed rod, a fixed rope slides inside the sliding groove, and both ends of the fixed rope are connected with the rotating shaft.

[0007] Preferably, a push rod is provided on one side of the motor, and the push rod is fixedly connected to the first rack.

[0008] Preferably, a first hole is provided inside the second fixing table, the size of the first hole is adapted to the sliding connecting rod, and one end of the sliding connecting rod is spherical.

[0009] Preferably, two sets of second gears are further provided on the rotating shaft, second racks meshing with the second gears are reversely provided on both sides of the two sets of second gears, an extrusion rod is provided on one side of the second rack, an extrusion groove is provided on one side of the extrusion rod, a spring is provided inside the extrusion groove, and one end of the extrusion rod is connected to the spring.

[0010] Preferably, two sets of support frames are provided on the support table, and one side of the support frame is inserted into the extrusion groove.

[0011] Preferably, connecting pieces are respectively provided on both sides of the two ends of the rotating shaft, and one side of the connecting piece is fixedly connected to the fixing rope.

[0012] Preferably, the rotating shaft penetrates through two sets of limiting sleeves, and the internal size of the limiting sleeve is adapted to the second rack.

[0013] Preferably, fixing pieces are provided on the outside of multiple photomultiplier tubes, and the size of the fixing piece is adapted to the outer shell.

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

[0015] 1. The present invention drives the fixed rod to rotate a certain angle through the connecting plate, the rotation of the fixed rod drives the detector to rotate, and the rotation of the detector drives the outer shell to rotate, so as to perform fine adjustment according to different detection angles required, conveniently and accurately adjust the required detection angle, reduce the labor intensity of the staff, and improve the working quality of the device during the working process and enhance the detection effect.

[0016] 2. When the rotating shaft rotates in the present invention, it drives the connecting pieces on both sides of the rotating shaft to rotate, the rotation of the connecting piece stretches the fixing rope, and at the same time the fixing rope slides inside the sliding groove. The rotation of the rotating shaft by a certain angle causes the connecting piece to stretch the fixing rope, so as to fix it, and assist in fixing the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

[0018] Figure 2 is the first partial structural schematic diagram of the adjustment mechanism of the present invention;

[0019] Figure 3 is the partial structural dissection diagram of the present invention;

[0020] Figure 4 The second partial structural schematic diagram of the adjustment mechanism of the present invention;

[0021] Figure 5 The third partial structural schematic diagram of the adjustment mechanism of the present invention;

[0022] Figure 6 The fourth partial structural schematic diagram of the adjustment mechanism of the present invention.

[0023] In the figure: 1, detector; 12, support platform; 13, outer shell; 14, plastic scintillator; 15, reflection sleeve; 16, light guide; 17, photomultiplier tube; 171, fixing piece; 18, sliding connecting rod; 2, adjustment mechanism; 21, motor; 211, first fixing platform; 212, push rod; 213, first rack; 22, rotating shaft; 221, first gear; 23, support frame; 24, connecting plate; 241, fixing rod; 242, sliding groove; 243, fixing rope; 244, connecting piece; 25, second fixing platform; 26, second gear; 261, second rack; 262, extrusion rod; 263, extrusion groove; 264, spring; 27, limiting sleeve. Specific embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] The present invention provides a lightweight plastic scintillation detector adapted to a portable camera, including a detector 1. There is an outer shell 13 on one side of the detector 1, an adjustment mechanism 2 at the bottom of the detector 1, a support platform 12 at the bottom of the adjustment mechanism 2, a reflection sleeve 15 inside the outer shell 13, a plastic scintillator 14 inside the reflection sleeve 15, a light guide 16 on one side of the plastic scintillator 14, and multiple groups of photomultiplier tubes 17 on one side of the light guide 16;

[0026] The adjusting mechanism 2 includes a first fixed platform 211 fixedly arranged on one side of the support platform 12. One end of the first fixed platform 211 is provided with a motor 21, one end of the motor 21 is provided with a first rack 213. The support platform 12 is also provided with a second fixed platform 25. A rotating shaft 22 is penetrated through the inside of the second fixed platform 25. A first gear 221 meshing with the first rack 213 is arranged on the rotating shaft 22. The bottom of the detector 1 is provided with a sliding connecting rod 18. The sliding connecting rod 18 is movably connected with the second fixed platform 25. One side of the first fixed platform 211 is provided with a connecting plate 24. A fixing rod 241 is penetrated through the connecting plate 24. One end of the fixing rod 241 is fixedly connected with the detector 1. A sliding groove 242 is also arranged on the fixing rod 241. A fixing rope 243 slides inside the sliding groove 242. Both ends of the fixing rope 243 are connected with the rotating shaft 22.

[0027] After starting to work simultaneously, according to different required angles, the motor 21 is controlled to slowly push the push rod 212 to move. The movement of the push rod 212 drives the movement of the first rack 213. The movement of the first rack 213 drives the rotation of the first gear 221. The rotation of the first gear 221 drives the connecting plate 24 to rotate around the rotating shaft 22 by a certain angle. At the same time, the connecting plate 24 drives the fixing rod 241 to rotate by a certain angle. The rotation of the fixing rod 241 drives the detector 1 to rotate. The rotation of the detector 1 drives the housing 13 to rotate, so as to perform fine adjustment according to different required detection angles, improve the working quality of the device during the working process, and enhance the detection effect.

[0028] At the same time, the rotation of the rotating shaft 22 drives the rotation of the second gear 26 on one side of the rotating shaft 22. The rotation of the second gear 26 drives the movement of the second racks 261 on both sides of the second gear 26. Since two groups of second gears 26 are arranged in the reverse direction on the rotating shaft 22, when the rotating shaft 22 rotates to drive the second gear 26 to rotate, one of the second racks 261 drives the extrusion rod 262 to extrude the spring 264 to fix the device, avoiding damage to the device during use due to unstable fixation when the detector 1 adjusts the angle. At the same time, the other second rack 261 moves in the reverse direction, so that there is always one extrusion rod 262 to assist in fixing the device when the device adjusts the angle. At the same time, the rotation of the rotating shaft 22 drives the rotation of the connecting pieces 244 on both sides of the rotating shaft 22. The rotation of the connecting pieces 244 stretches the fixing rope 243. At the same time, the fixing rope 243 slides inside the sliding groove 242. The rotating shaft 22 rotates by a certain angle so that the connecting piece 244 stretches the fixing rope 243, thereby fixing 22 and 241 to assist in fixing the device.

[0029] In an optional embodiment, a push rod 212 is arranged on one side of the motor 21. The push rod 212 is fixedly connected with the first rack 213.

[0030] It should be noted that by driving the push rod 212 to move through the motor 21, the movement of the push rod 212 drives the first rack 213 to move. The forward movement of the first rack 213 drives the first gear 221 to rotate downward, driving the detector 1 to rotate downward. The backward movement of the first rack 213 drives the first gear 221 to rotate upward, driving the detector 1 to rotate upward, thereby adjusting the angle of the detector 1 to facilitate the staff to work better.

[0031] In an alternative embodiment, a first hole is provided inside the second fixed platform 25, and the size of the first hole is adapted to the sliding connecting rod 18. One end of the sliding connecting rod 18 is spherical.

[0032] It should be noted that the detector 1 is fixedly connected to the sliding connecting rod 18, and the sliding connecting rod 18 is slidably connected to the second fixed platform 25. When the detector 1 rotates, it drives one end of the sliding connecting rod 18 to rotate inside the second fixed platform 25, thereby causing the detector 1 to rotate. At the same time, one end of the sliding connecting rod 18 is clamped inside the second fixed platform 25 to prevent the sliding connecting rod 18 from disengaging from the second fixed platform 25 during work and causing damage to the device.

[0033] In an alternative embodiment, two sets of second gears 26 are further provided on the rotating shaft 22. On both sides of the two sets of second gears 26, second racks 261 meshing with the second gears 26 are arranged in the reverse direction. One side of the second rack 261 is provided with an extrusion rod 262, one side of the extrusion rod 262 is provided with an extrusion groove 263, a spring 264 is arranged inside the extrusion groove 263, and one end of the extrusion rod 262 is connected to the spring 264.

[0034] It should be noted that the rotation of the rotating shaft 22 drives the two sets of second gears 26 to rotate. The rotation of the two sets of second gears 26 drives the second racks 261 on both sides of the second gears 26 to move respectively. The two sets of second racks 261 move in the reverse direction. One of the second racks 261 squeezes the extrusion rod 262, driving the extrusion rod 262 to squeeze the spring 264, enhancing the fixing effect when adjusting the angle of the detector 1. The other second rack 261 rotates in the reverse direction, thereby ensuring that the detector 1 can be fixed regardless of how the rotation adjustment angle is adjusted, avoiding damage to the device during the adjustment of the angle, affecting the work, and even causing economic losses.

[0035] In an alternative embodiment, two sets of support frames 23 are provided on the support platform 12, and one side of the support frame 23 is inserted into the extrusion groove 263.

[0036] It should be noted that both sides of the two sets of support frames 23 are in contact with the extrusion groove 263. When the rotating shaft 22 rotates, one set of second racks 261 extrude the extrusion rod 262, driving the extrusion rod 262 to extrude the extrusion groove 263 and the spring 264, thereby extruding the support frame 23 to ensure the fixing effect between the rotating shaft 22 and the support frame 23 when the rotating shaft 22 rotates.

[0037] In an alternative embodiment, connection pieces 244 are respectively arranged on both sides of the two ends of the rotating shaft 22, and one side of the connection piece 244 is fixedly connected to the fixing rope 243.

[0038] It should be noted that the rotation of the rotating shaft 22 drives the rotation of the connection piece 244, and the rotation of the connection piece 244 drives the stretching of the fixing rope 243 to ensure the fixed connection between the rotating shaft 22 and the fixing rod 241, and further ensure the fixed connection between the detector 1 and the second fixing platform 25.

[0039] In an alternative embodiment, the rotating shaft 22 penetrates through two sets of limiting sleeves 27, and the internal size of the limiting sleeve 27 is adapted to the second rack 261.

[0040] It should be noted that the two sets of limiting sleeves 27 respectively limit the second racks 261 inside to prevent the second racks 261 from moving out of the pre-set track during movement, which may affect the normal operation of the device and thus reduce the working quality of the device.

[0041] In an alternative embodiment, fixing pieces 171 are arranged outside multiple photomultiplier tubes 17, and the size of the fixing piece 171 is adapted to the outer shell 13.

[0042] It should be noted that the fixing piece 171 fixes the multiple photomultiplier tubes 17 at the same time, and the fixing piece 171 works inside the outer shell 13.

[0043] Working principle: After starting to work, according to different required angles, the motor 21 is controlled to slowly push the push rod 212 to move. The movement of the push rod 212 drives the movement of the first rack 213. The movement of the first rack 213 drives the rotation of the first gear 221. The rotation of the first gear 221 drives the connecting plate 24 to rotate around the rotating shaft 22 by a certain angle. At the same time, the connecting plate 24 drives the fixing rod 241 to rotate by a certain angle. The rotation of the fixing rod 241 drives the detector 1 to rotate, and the rotation of the detector 1 drives the outer shell 13 to rotate, so as to make fine adjustments according to different required detection angles, improve the working quality of the device during the working process, and enhance the detection effect.

[0044] Meanwhile, the rotation of the rotating shaft 22 drives the rotation of the second gear 26 on one side of the rotating shaft 22. The rotation of the second gear 26 drives the movement of the second rack bars 261 on both sides of the second gear 26. Since there are two sets of second gears 26 arranged in opposite directions on the rotating shaft 22, when the rotating shaft 22 rotates to drive the second gear 26 to rotate, one set of second rack bars 261 drives the extrusion rod 262 to extrude the spring 264, fixing the device and preventing damage to the device during use due to unstable fixation when the detector 1 adjusts the angle. At the same time, the other set of second rack bars 261 moves in the opposite direction, so that there is always one set of extrusion rods 262 to assist in fixing the device when the device adjusts the angle. Meanwhile, the rotation of the rotating shaft 22 drives the rotation of the connecting pieces 244 on both sides of the rotating shaft 22. The rotation of the connecting pieces 244 stretches the fixing rope 243. At the same time, the fixing rope 243 slides inside the sliding groove 242. The rotating shaft 22 rotates a certain angle to make the connecting piece 244 stretch the fixing rope 243, so as to fix 22 and 241, assisting in fixing the device.

[0045] The motor 21 drives the movement of the push rod 212. The movement of the push rod 212 drives the movement of the first rack bar 213. The forward movement of the first rack bar 213 drives the first gear 221 to rotate downward, driving the detector 1 to rotate downward. The backward movement of the first rack bar 213 drives the first gear 221 to rotate upward, driving the detector 1 to rotate upward, thereby adjusting the angle of the detector 1, which is convenient for the staff to work better. The detector 1 is fixedly connected to the sliding connecting rod 18, and the sliding connecting rod 18 is slidably connected to the second fixed platform 25. When the detector 1 rotates, it drives one end of the sliding connecting rod 18 to rotate inside the second fixed platform 25, so that the detector 1 rotates. At the same time, one end of the sliding connecting rod 18 is clamped inside the second fixed platform 25, preventing the sliding connecting rod 18 from separating from the second fixed platform 25 during work and causing damage to the device. The rotation of the rotating shaft 22 drives the rotation of the two sets of second gears 26. The rotation of the two sets of second gears 26 drives the movement of the second rack bars 261 on both sides of the second gear 26 respectively. The two sets of second rack bars 261 move in opposite directions. One set of second rack bars 261 extrudes the extrusion rod 262, driving the extrusion rod 262 to extrude the spring 264, enhancing the fixing effect when adjusting the angle of the detector 1. The other set of second rack bars 261 rotates in the opposite direction, so as to ensure that the detector 1 during the rotation adjustment angle can be fixed anyway, avoiding damage to the device during the angle adjustment, affecting the work, and even causing economic losses.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight plastic scintillation detector adapted for a portable camera, comprising a detector (1), characterized in that, On one side of the detector (1), there is a housing (13). At the bottom of the detector (1), there is an adjusting mechanism (2). At the bottom of the adjusting mechanism (2), there is a support platform (12). Inside the housing (13), there is a reflection sleeve (15). Inside the reflection sleeve (15), there is a plastic scintillator (14). On one side of the plastic scintillator (14), there is an optical guide (16). On one side of the optical guide (16), there are multiple photomultiplier tubes (17). The adjusting mechanism (2) includes a first fixed platform (211) fixedly arranged on one side of the support platform (12). At one end of the first fixed platform (211), there is a motor (21). At one end of the motor (21), there is a first rack (213). On the support platform (12), there is also a second fixed platform (25). Inside the second fixed platform (25), a rotating shaft (22) is arranged through. On the rotating shaft (22), there is a first gear (221) meshing with the first rack (213). At the bottom of the detector (1), there is a sliding connecting rod (18). The sliding connecting rod (18) is movably connected to the second fixed platform (25). On one side of the first fixed platform (211), there is a connecting plate (24). Through the connecting plate (24), there is a fixing rod (241). One end of the fixing rod (241) is fixedly connected to the detector (1). On the fixing rod (241), there is also a sliding groove (242). Inside the sliding groove (242), a fixing rope (243) slides. Both ends of the fixing rope (243) are connected to the rotating shaft (22).

2. The lightweight plastic scintillation detector adapted to a portable camera according to claim 1, characterized in that, On one side of the motor (21), there is a push rod (212). The push rod (212) is fixedly connected to the first rack (213).

3. The lightweight plastic scintillation detector adapted to a portable camera according to claim 1, characterized in that Inside the second fixed platform (25), there is a first hole. The size of the first hole is adapted to the sliding connecting rod (18). One end of the sliding connecting rod (18) is spherical.

4. A lightweight plastic scintillation detector adapted for a portable camera according to claim 1, characterized in that, On the rotating shaft (22), there are also two second gears (26). On both sides of the two second gears (26), there are second racks (261) arranged in the opposite direction and meshing with the second gears (26). On one side of the second rack (261), there is an extrusion rod (262). On one side of the extrusion rod (262), there is an extrusion groove (263). Inside the extrusion groove (263), there is a spring (264). One end of the extrusion rod (262) is connected to the spring (264).

5. The lightweight plastic scintillation detector adapted to a portable camera according to claim 1, characterized in that, On the support platform (12), there are two support frames (23). One side of the support frame (23) is inserted into the extrusion groove (263).

6. The lightweight plastic scintillation detector adapted for a portable camera according to claim 5, characterized in that, On both sides of the two ends of the rotating shaft (22), there are connecting pieces (244). One side of the connecting piece (244) is fixedly connected to the fixing rope (243).

7. A lightweight plastic scintillation detector adapted for a portable camera according to claim 1, characterized in that, The rotating shaft (22) passes through two limiting sleeves (27). The internal size of the limiting sleeve (27) is adapted to the second rack (261).

8. The lightweight plastic scintillation detector adapted for a portable camera according to claim 1, wherein, Outside multiple photomultiplier tubes (17), there are fixing pieces (171). The size of the fixing piece (171) is adapted to the housing (13).

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