High-sensitivity digital gamma spectrometer

Abstract

The utility model relates to the technical field of detection equipment, and discloses a high-sensitivity digital gamma spectrometer, which comprises a bottom plate, and the front end and the rear end of the right side of the upper surface of the bottom plate are fixedly connected with fixing frames; and the mounting block is movably connected to the top of the inner surface of the fixing frame, and rotating shafts are fixedly connected to the outer surfaces of the front side and the rear side of the mounting block. Through the arrangement of the rotating shaft, the toothed plate, the gear, the universal wheels and the handrail, due to the design of the universal wheels and the handrail, an operator can move the whole bottom plate at will, the operation of the pneumatic cylinder enables the connecting block and the toothed plate to start to move up and down, and due to the fact that the toothed plate is meshed with the gear, the whole bottom plate can move up and down. The mounting block is integrally driven by the toothed plate to rotate by taking the rotating shaft as the axis, so that the orientation of the detector is changed, the detector can be aligned with gamma ray sources at different angles, and an operator does not need to hold the detector for detection.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, and more specifically, to a high-sensitivity digital gamma spectrometer. Background Art

[0002] A gamma spectrometer is a radiation meter used to measure the gamma ray energy of radioactive materials. The spectrometer mainly consists of two parts: a detector and a pulse amplitude analyzer. Its main principle is to convert rays of different energies into electrical pulses of corresponding amplitudes through the detector and amplify them. The amplified pulses are sent to the pulse amplitude analyzer for analysis, and the analyzed readings are displayed on the display screen for reading by the recorder.

[0003] When operators detect gamma rays, they often use a high-sensitivity gamma spectrometer so that they can read and record the gamma ray intensity in the environment. In actual use, although the existing gamma spectrometers have basic analysis functions, they generally require operators to hold the detector and aim it at the gamma ray source to accurately analyze the ray intensity. This brings unnecessary physical burden to the operators and increases the labor intensity of the operators. Therefore, they need to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a high-sensitivity digital gamma spectrometer, which has the advantage of no need for handheld detection.

[0005] To achieve the above object, the utility model provides the following technical solution: a high-sensitivity digital gamma spectrometer, comprising:

[0006] A bottom plate, wherein both front and rear ends of the right side of the upper surface of the bottom plate are fixedly connected with fixing frames;

[0007] A mounting block, the mounting block is movably connected to the top of the inner surface of the fixing frame, the outer surfaces of the front and rear sides of the mounting block are fixedly connected with a rotating shaft, the front and rear ends of the rotating shaft both penetrate the fixing frame and extend to the outside of the fixing frame, and the outer surface of the rotating shaft is movably sleeved with the inner surface of the fixing frame;

[0008] An adjustment mechanism, wherein the adjustment mechanism is arranged at the rear side of the fixing frame;

[0009] Wherein, the adjustment mechanism includes a gear, the inner surface of the gear is fixedly sleeved on the outer surface of the rotating shaft located on the front side of the fixed frame, the outer surface of the gear is meshingly connected with a toothed plate, the middle part of the right surface of the toothed plate is fixedly connected with a connecting block, the right side of the lower surface of the connecting block is fixedly connected with a pneumatic cylinder located on the right side of the fixed frame, the lower surface of the pneumatic cylinder is fixedly connected to the upper surface of the base plate, and the toothed plate moves up and down to cause the gear to drive the rotating shaft and the mounting block to rotate as a whole.

[0010] As a preferred technical solution of the utility model, a detector is fixedly sleeved on the inner surface of the mounting block, the right end of the detector passes through the mounting block and extends to the right side of the mounting block, and a support frame is fixedly connected to the left side of the upper surface of the base plate.

[0011] As a preferred technical solution of the utility model, a universal wheel is movably mounted on the lower surface of the base plate, and an armrest located on the left side of the support frame is fixedly connected to the upper surface of the base plate.

[0012] As a preferred technical solution of the utility model, a pulse amplitude analyzer is fixedly connected to the upper surface of the support frame, and a sliding groove located in front of the pulse amplitude analyzer is opened on the upper surface of the support frame.

[0013] As a preferred technical solution of the utility model, the right end of the detector is fixedly connected with a transmission line, and the other end of the transmission line is fixedly connected to the left surface of the pulse amplitude analyzer.

[0014] As a preferred technical solution of the utility model, a power motor is fixedly mounted on the upper surface of the pulse amplitude analyzer, and a round shaft is fixedly sleeved on the other end of the output shaft of the power motor.

[0015] As a preferred technical solution of the utility model, the outer surface of the circular shaft is fixedly sleeved with a rotating rod located above the pulse amplitude analyzer, and the left and right ends of the rotating rod are hinged with a No. 1 connecting rod. There are two No. 1 connecting rods, and the two No. 1 connecting rods have the same size.

[0016] As a preferred technical solution of the utility model, the other ends of the two No. 1 connecting rods are hinged with No. 2 connecting rods, and the front side of the lower surface of the No. 2 connecting rod is fixedly connected with a protective plate. There are two protective plates, and the outer surfaces of the bottom ends of the two protective plates are movably connected to the inner surface of the sliding groove, and the outer surfaces of the two protective plates are movably connected to the front surface of the pulse amplitude analyzer.

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

[0018] 1. The utility model is provided with a rotating shaft, a toothed plate, a gear, a universal wheel and an armrest. Due to the design of the universal wheel and the armrest, the operator can move the entire bottom plate at will, and the operation of the pneumatic cylinder will cause the connecting block and the toothed plate to start moving up and down. Since the toothed plate and the gear are meshed with each other, the mounting block as a whole will start to rotate around the rotating shaft driven by the toothed plate, which changes the orientation of the detector, so that the detector can be aimed at a gamma ray source at different angles, thereby eliminating the need for the operator to hold the detector for detection, thereby reducing the physical burden of the operator.

[0019] 2. The utility model sets a sliding groove, a rotating rod, a No. 1 connecting rod, a No. 2 connecting rod and a protective plate. When the power motor is running, the circular shaft and the rotating rod will start to rotate, and the rotation of the rotating rod will drive the two No. 1 connecting rods, so that the two No. 1 connecting rods start to rotate with the left and right ends of the rotating rod as the axis respectively. At the same time, the other ends of the two No. 1 connecting rods will also drive the two No. 2 connecting rods, so that the two No. 2 connecting rods and the two protective plates start to move towards each other under the limit of the sliding groove. Finally, the two protective plates will block the screen and buttons of the pulse amplitude analyzer, thereby protecting the pulse amplitude analyzer and preventing the screen of the pulse amplitude analyzer from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the back of the utility model;

[0022] Figure 3 It is a schematic cross-sectional view of the power motor of the utility model;

[0023] Figure 4 It is a schematic cross-sectional structure diagram of the rotating shaft of the utility model;

[0024] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0025] In the figure: 1. base plate; 2. fixing frame; 3. rotating shaft; 4. mounting block; 5. detector; 6. pneumatic cylinder; 7. connecting block; 8. tooth plate; 9. gear; 10. universal wheel; 11. handrail; 12. supporting frame; 13. pulse amplitude analyzer; 14. sliding groove; 15. transmission line; 16. power motor; 17. round shaft; 18. rotating rod; 19. connecting rod No. 1; 20. connecting rod No. 2; 21. protection plate. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figures 1 to 5 As shown, the utility model provides a high-sensitivity digital gamma spectrometer, comprising:

[0028] A bottom plate 1, with fixing frames 2 fixedly connected to the front and rear ends of the right side of the upper surface of the bottom plate 1;

[0029] A mounting block 4 is movably connected to the top of the inner surface of the fixing frame 2. The outer surfaces of the front and rear sides of the mounting block 4 are fixedly connected with a rotating shaft 3. The front and rear ends of the rotating shaft 3 penetrate the fixing frame 2 and extend to the outside of the fixing frame 2. The outer surface of the rotating shaft 3 is movably sleeved with the inner surface of the fixing frame 2.

[0030] An adjustment mechanism, the adjustment mechanism is arranged on the rear side of the fixing frame 2;

[0031] Among them, the adjustment mechanism includes a gear 9, the inner surface of the gear 9 is fixedly sleeved on the outer surface of the rotating shaft 3 located on the front side of the fixed frame 2, the outer surface of the gear 9 is meshedly connected with a toothed plate 8, the middle part of the right surface of the toothed plate 8 is fixedly connected with a connecting block 7, the right side of the lower surface of the connecting block 7 is fixedly connected with a pneumatic cylinder 6 located on the right side of the fixed frame 2, the lower surface of the pneumatic cylinder 6 is fixedly connected to the upper surface of the base plate 1, and the toothed plate 8 moves up and down to make the gear 9 drive the rotating shaft 3 and the mounting block 4 to rotate as a whole.

[0032] When the pneumatic cylinder 6 is running, the connecting block 7 and the tooth plate 8 will start to move upward under the drive of the pneumatic cylinder 6. Due to the engagement between the tooth plate 8 and the outer surface of the gear 9, the gear 9, the rotating shaft 3 and the mounting block 4 as a whole will start to rotate around the rotating shaft 3 as the axis under the drive of the tooth plate 8.

[0033] The inner surface of the mounting block 4 is fixedly sleeved with a detector 5 , the right end of the detector 5 passes through the mounting block 4 and extends to the right side of the mounting block 4 , and the left side of the upper surface of the base plate 1 is fixedly connected with a support frame 12 .

[0034] The detector 5 can receive the gamma ray signal and has the function of converting its wavelength into an electrical signal and then amplifying it.

[0035] A universal wheel 10 is movably mounted on the lower surface of the base plate 1 , and an armrest 11 located on the left side of the support frame 12 is fixedly connected to the upper surface of the base plate 1 .

[0036] Due to the design of the universal wheels 10 and the armrests 11 , the operator can more conveniently move the entire base plate 1 .

[0037] The upper surface of the support frame 12 is fixedly connected with a pulse amplitude analyzer 13 , and the upper surface of the support frame 12 is provided with a sliding groove 14 located in front of the pulse amplitude analyzer 13 .

[0038] The pulse amplitude analyzer 13 can analyze the electrical signal transmitted by the detector 5 and display it in the form of data, so as to facilitate the operator to record the intensity of the gamma rays.

[0039] The right end of the detector 5 is fixedly connected to a transmission line 15 , and the other end of the transmission line 15 is fixedly connected to a left surface of the pulse amplitude analyzer 13 .

[0040] The transmission line 15 can transmit the electrical signal sent by the detector 5 to the pulse amplitude analyzer 13, thereby playing the role of transmitting data.

[0041] A power motor 16 is fixedly mounted on the upper surface of the pulse amplitude analyzer 13 , and a round shaft 17 is fixedly sleeved on the other end of the output shaft of the power motor 16 .

[0042] When the power motor 16 is running, the circular shaft 17 will start to rotate.

[0043] The outer surface of the circular shaft 17 is fixedly sleeved with a rotating rod 18 located above the pulse amplitude analyzer 13, and both left and right ends of the rotating rod 18 are hinged with a No. 1 connecting rod 19. There are two No. 1 connecting rods 19, and the two No. 1 connecting rods 19 have the same size.

[0044] When the rotating rod 18 rotates, the two No. 1 connecting rods 19 will rotate driven by the rotating rod 18 .

[0045] Among them, the other ends of the two No. 1 connecting rods 19 are hinged with the No. 2 connecting rod 20, and the front side of the lower surface of the No. 2 connecting rod 20 is fixedly connected with a protective plate 21. There are two protective plates 21. The outer surfaces of the bottom ends of the two protective plates 21 are movably connected to the inner surface of the sliding groove 14, and the outer surfaces of the two protective plates 21 are movably connected to the front surface of the pulse amplitude analyzer 13.

[0046] When the two No. 1 connecting rods 19 start to rotate, the other ends of the two No. 1 connecting rods 19 will drive the two No. 2 connecting rods 20 and the two protection plates 21 , so that the two protection plates 21 start to move toward each other under the limit of the inner surface of the sliding groove 14 .

[0047] The working principle and use process of this utility model:

[0048] The operator first starts the pneumatic cylinder 6. As the pneumatic cylinder 6 runs, the connecting block 7 and the toothed plate 8 begin to move up and down. During this process, due to the mutual meshing between the outer surfaces of the toothed plate 8 and the gear 9, the gear 9, the rotating shaft 3 and the mounting block 4 as a whole begin to rotate around the rotating shaft 3 under the drive of the toothed plate 8, and the rotation of the mounting block 4 will change the orientation of the detector 5. When the detector 5 is aimed at the gamma ray source, the operator starts the detector 5 and the pulse amplitude analyzer 13. The detector 5 absorbs the gamma rays and converts them into electrical signals, and the electrical signals are transmitted to the pulse amplitude analyzer 13 through the transmission line 15. After analyzing and processing these signals, the pulse amplitude analyzer 13 obtains data such as the intensity of the gamma rays and displays it on the screen of the pulse amplitude analyzer 13, so that the operator can read and record them conveniently.

[0049] When the detection of the gamma ray source is completed, the operator starts the power motor 16. As the power motor 16 runs, the circular shaft 17 and the rotating rod 18 begin to rotate, and the two No. 1 connecting rods 19 rotate under the drive of the rotating rod 18. At this time, the other ends of the two No. 1 connecting rods 19 drive the two No. 2 connecting rods 20, and the two No. 2 connecting rods 20 respectively drive the two protective plates 21 to make the two protective plates 21 start to move toward each other along the inner surface of the sliding groove 14. Finally, the two protective plates 21 will cover the screen and buttons of the pulse amplitude analyzer 13, thereby preventing the screen of the pulse amplitude analyzer 13 from being damaged and scratched after being placed for a long time.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sensitive digital gamma spectrometer, characterized in that: Included are: A bottom plate (1), wherein both front and rear ends of the right side of the upper surface of the bottom plate (1) are fixedly connected to a fixing frame (2); A mounting block (4), the mounting block (4) being movably connected to the top of the inner surface of the fixing frame (2), the outer surfaces of the front and rear sides of the mounting block (4) being fixedly connected to a rotating shaft (3), the front and rear ends of the rotating shaft (3) both passing through the fixing frame (2) and extending to the outside of the fixing frame (2), the outer surface of the rotating shaft (3) being movably sleeved with the inner surface of the fixing frame (2); An adjustment mechanism, the adjustment mechanism being arranged on the rear side of the fixing frame (2); The adjustment mechanism comprises a gear (9), the inner surface of the gear (9) is fixedly sleeved on the outer surface of the rotating shaft (3) located on the front side of the fixed frame (2), the outer surface of the gear (9) is meshingly connected with a toothed plate (8), the middle part of the right surface of the toothed plate (8) is fixedly connected with a connecting block (7), the right side of the lower surface of the connecting block (7) is fixedly connected with a pneumatic cylinder (6) located on the right side of the fixed frame (2), the lower surface of the pneumatic cylinder (6) is fixedly connected to the upper surface of the bottom plate (1), and the toothed plate (8) moves up and down so that the gear (9) drives the rotating shaft (3) and the mounting block (4) to rotate as a whole.

2. A high-sensitivity digital gamma spectrometer according to claim 1, characterized in that: A detector (5) is fixedly sleeved on the inner surface of the mounting block (4), the right end of the detector (5) passes through the mounting block (4) and extends to the right side of the mounting block (4), and a support frame (12) is fixedly connected to the left side of the upper surface of the base plate (1).

3. A high-sensitivity digital gamma spectrometer according to claim 1, characterized in that: A universal wheel (10) is movably mounted on the lower surface of the base plate (1), and an armrest (11) located on the left side of the support frame (12) is fixedly connected to the upper surface of the base plate (1).

4. A high-sensitivity digital gamma spectrometer according to claim 2, characterized in that: A pulse amplitude analyzer (13) is fixedly connected to the upper surface of the support frame (12), and a sliding groove (14) located in front of the pulse amplitude analyzer (13) is provided on the upper surface of the support frame (12).

5. A high-sensitivity digital gamma spectrometer according to claim 2, characterized in that: The right end of the detector (5) is fixedly connected to a transmission line (15), and the other end of the transmission line (15) is fixedly connected to the left surface of the pulse amplitude analyzer (13).

6. A high-sensitivity digital gamma spectrometer according to claim 4, characterized in that: A power motor (16) is fixedly mounted on the upper surface of the pulse amplitude analyzer (13), and a round shaft (17) is fixedly sleeved on the other end of the output shaft of the power motor (16).

7. A high-sensitivity digital gamma spectrometer according to claim 6, characterized in that: The outer surface of the circular shaft (17) is fixedly sleeved with a rotating rod (18) located above the pulse amplitude analyzer (13), and the left and right ends of the rotating rod (18) are both hinged with a No. 1 connecting rod (19), and the number of the No. 1 connecting rods (19) is two, and the two No. 1 connecting rods (19) have the same size.

8. A high-sensitivity digital gamma spectrometer according to claim 7, characterized in that: The other ends of the two No. 1 connecting rods (19) are hinged with No. 2 connecting rods (20), and the front side of the lower surface of the No. 2 connecting rod (20) is fixedly connected with a protective plate (21). The number of the protective plates (21) is two, and the outer surfaces of the bottom ends of the two protective plates (21) are movably connected to the inner surface of the sliding groove (14), and the outer surfaces of the two protective plates (21) are movably connected to the front surface of the pulse amplitude analyzer (13).

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