Turnover type radioactive source switch device

Abstract

The utility model discloses a turnover type radioactive source switching device, which comprises a driving device, the output end of the driving device is provided with a containing device for containing a radioactive source, the driving device comprises a power source, the output end of the power source is provided with a rotating device, the containing device is connected with the rotating device, and the rotating device is connected with the containing device. An output device with an opening at one end is arranged on the outer side of the radioactive source, so that the contact frequency of a human body and the radioactive source when the radioactive source is controlled to be switched on and off is reduced, the operation risk is reduced, and the body health of operators is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of use of radioactive elements, in particular to a flip-type radiation source switch device. Background Art

[0002] Cesium 137 is a common radioactive cesium isotope with a half-life of about 30 years. It will gradually decay into radioactive barium and finally into a stable form of barium element. This isotope has special applications in the medical field, such as treating cancer. In addition, cesium element will release electrons under the action of light, so metallic cesium is mainly used to manufacture phototubes, spectrometers, scintillation counters, radio tubes, military infrared signal lights, and various optical instruments and detection instruments.

[0003] When the radioactivity of cesium 137 is used for experiments or use, it is necessary to use the switch of the lead box to control the output direction of the radioactive particles, so that the output radioactive particles can be used for experiments or use. Some existing operating devices manually control the switch of the lead box, which makes the human body contact the radiation source too much at a close distance, which will cause harm to the human body over time and is not conducive to the health of the operator. This technical solution is now proposed to improve this. Utility Model Content

[0004] The utility model aims to overcome the disadvantage of the prior art that excessive human intervention is required when operating a radiation source switch, and provides a flip-type radiation source switch device.

[0005] The utility model is realized through the following technical scheme: a flip-type radiation source switch device, comprising a driving device, wherein the output end of the driving device is provided with a containing device for placing the radiation source, the driving device comprises a power source, the output end of the power source is provided with a rotating device, the containing device is connected to the rotating device, and an output device with an open end is provided on the outer side of the radiation source.

[0006] Furthermore, the driving device comprises a housing, the power source is arranged inside the housing, the power source is a driving motor, and the driving motor is fixed inside the housing via a mounting bracket.

[0007] Furthermore, a reduction device is provided at the output end of the driving motor, and a turning frame is connected to the output end of the reduction device, and the turning frame is connected to the containing device.

[0008] Furthermore, the containing device comprises a rotating body, a side surface of the rotating body is provided with a connecting groove, and the rotating body is rotatably arranged inside the output device.

[0009] Furthermore, the output device comprises an upper protective shell, a connecting plate is arranged at the lower part of the upper protective shell, a lower protective shell is arranged at the lower part of the connecting plate, and an outlet is arranged at the top of the upper protective shell.

[0010] Furthermore, the lower protective shell is in the shape of a truncated cone with a bottom protruding downward, and a protective sleeve is arranged inside the lower protective shell.

[0011] The beneficial effects of the utility model are as follows: when in use, the driving motor drives the reducer and the sleeve to rotate, the sleeve drives the rotating body to rotate, photoelectric position sensors are installed on both sides of the rotation path of the limit plate, the rotation angle of the rotating body is controlled by the photoelectric position sensors, and the driving motor can be driven by wired control or wireless control, which reduces the frequency of contact between the human body and the radiation source when controlling the radiation source switch, reduces the operation risk, and ensures the health of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0014] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the explosion structure of the utility model from another angle;

[0016] Figure 5 This is a schematic diagram of the casing structure of the utility model;

[0017] Wherein: 1. outer shell; 101. driving motor; 102. reducer; 103. sleeve; 104. photoelectric position sensor; 2. upper protective shell; 201. connecting plate; 202. lower protective shell; 3. rotating body; 301. limiting piece; 302. connecting groove. DETAILED DESCRIPTION

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, 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.

[0020] Example 1

[0021] like Figure 1-5 As shown: The present invention relates to a flip-type radiation source switch device, which is particularly suitable for precise control of radiation sources in the fields of medical treatment and scientific research. The device realizes stable flipping of the radiation source through a driving device, and realizes effective protection and export of the radiation source through an output device.

[0022] First of all, the core part of the flip-type radiation source switch device is the driving device, which is mainly composed of a shell 1, a power source and a rotating device. The power source is a driving motor 101, which is fixed inside the shell 1 through a mounting frame to ensure the stable operation of the motor. The shell 1 provides stable support and protection for the entire device. The power source is arranged inside the shell 1. A reduction device is arranged at the output end of the driving motor 101. The reduction device is a planetary reducer 102. The main function of the reduction device is to reduce the output speed of the motor. The output through the reducer 102 makes the flipping action smoother and also reduces energy consumption.

[0023] The output end of the reducer 102 is connected to a flip frame, which is connected to a containing device. The containing device is responsible for carrying and fixing the radiation source, and mainly includes a rotating body 3. The rotating body 3 is cylindrical and is rotatably arranged inside the upper protective shell 2. The flip frame includes a sleeve 103 connected to the reducer 102. A notch is provided on the side wall of the sleeve 103, and the notch is engaged with a limit plate 301 on the rotating body 3. When in use, the driving motor 101 drives the reducer 102 and the sleeve 103 to rotate, and the sleeve 103 drives the rotating body 3 to rotate. Photoelectric position sensors 104 are installed on both sides of the rotation path of the limit plate 301. The photoelectric position sensor 104 controls the rotation angle of the rotating body 3, and further controls the opening and closing of the radiation source. The structural technology is mature and stable.

[0024] A connecting groove 302 is provided on the side of the rotating body 3, so that the flip frame can be stably connected to it. The rotating body 3 is rotatably installed inside the output device. When the driving motor 101 is started, the rotating body 3 is driven to flip inside the output device through the reduction device and the flip frame. The driving motor 101 can be driven by wired control or wireless control, which reduces the frequency of contact between the human body and the radiation source when controlling the radiation source switch, reduces the operation risk, and ensures the health of the operator.

[0025] The main function of the output device is to protect the radioactive source and export the radioactive source when necessary. It includes an upper protective shell 2, a connecting plate 201 and a lower protective shell 202. An outlet is provided at the top of the upper protective shell 2 for exporting the radioactive source. The connecting plate 201 connects the upper protective shell 2 and the lower protective shell 202 to ensure the stability of the entire output device. The lower protective shell is designed to be a truncated cone with a downwardly protruding bottom. This design can not only better fix and protect the radioactive source, but also reduce the shaking of the radioactive source during the flipping process. In addition, a protective sleeve is also provided inside the lower protective shell 202 to further enhance the protective effect of the radioactive source. The lower protective shell 202 can be removed. The radioactive source is generally cesium 137. By placing it inside the lead box, the bottom of the lead box is bolted to the inside of the connecting groove 302 by bolts. When replacing or installing cesium 137, the lower protective shell 202 is removed. It is easy to use and simple to adjust, which greatly reduces the contact time between the operator and cesium 137 during reciprocating operation, ensuring the safety of the operator.

[0026] In actual use, when the radiation source needs to be turned on, the driving motor 101 is started, and the rotating body 3 and the cesium 137 are driven to flip inside the output device through the reduction device and the flip frame, so that the radiation source is output from the outlet of the lower protective shell 202. When the radiation source needs to be turned off, the driving motor 101 rotates in the opposite direction, driving the rotating body 3 back to the initial position. At this time, the radiation source is completely enclosed inside the lower protective shell 202, thereby achieving effective protection of the radiation source.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flip-type radiation source switch device, characterized in that: It comprises a driving device, wherein an output end of the driving device is provided with a containing device for placing a radiation source, the driving device comprises a power source, an output end of the power source is provided with a rotating device, the containing device is connected to the rotating device, and an output device with an open end is provided on the outer side of the radiation source.

2. The flip-type radiation source switch device according to claim 1, characterized in that: The driving device comprises a shell, the power source is arranged inside the shell, the power source is a driving motor, and the driving motor is fixed inside the shell through a mounting frame.

3. The flip-type radiation source switch device according to claim 2, characterized in that: The output end of the driving motor is provided with a speed reducing device, the output end of the speed reducing device is connected with a turning frame, and the turning frame is connected with the containing device.

4. The flip-type radiation source switch device according to claim 1, characterized in that: The containing device comprises a rotating body, a connecting groove is arranged on the side of the rotating body, and the rotating body is rotatably arranged inside the output device.

5. The flip-type radiation source switch device according to claim 1, characterized in that: The output device comprises an upper protective shell, a connecting plate is arranged at the lower part of the upper protective shell, a lower protective shell is arranged at the lower part of the connecting plate, and an outlet is arranged at the top of the upper protective shell.

6. The flip-type radiation source switch device according to claim 5, characterized in that: The lower protective shell is in the shape of a truncated cone with a bottom protruding downward, and a protective sleeve is arranged inside the lower protective shell.

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