CN212907117U - Gas-electric hybrid power opening and closing device for beam outlet of radioactive source critical device - Google Patents
Gas-electric hybrid power opening and closing device for beam outlet of radioactive source critical device Download PDFInfo
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- CN212907117U CN212907117U CN202021376653.7U CN202021376653U CN212907117U CN 212907117 U CN212907117 U CN 212907117U CN 202021376653 U CN202021376653 U CN 202021376653U CN 212907117 U CN212907117 U CN 212907117U
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- shielding body
- lead screw
- placing plate
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Abstract
The utility model discloses a critical device of radiation source goes out bundle mouth gas-electricity hybrid and opens closing device, shielding lead indoor portion is equipped with the radiation source, shielding lead indoor lateral wall is equipped with out the bundle mouth, shielding lead outdoor wall goes out bundle mouth department and is equipped with the shielding body, the shielding body below still is equipped with the promotion subassembly that promotes the shielding body, the promotion subassembly includes the shelf board that is located out bundle mouth below, shelf board top is equipped with a plurality of parallel arrangement's slide rail, the shielding body bottom is equipped with the slider that slides on the slide rail, still be equipped with a lead screw parallel with the slide rail on the shelf board, the lead screw both ends and shelf board are connected through the bearing, the shielding body bottom is equipped with the connecting block with lead screw threaded connection, lead screw one end is connected through shaft coupling, speed reducer and motor; the placing plate is also provided with an air cylinder, the telescopic direction of the air cylinder is parallel to the sliding rail, and an air cylinder piston rod is connected with the connecting block. The utility model discloses in when electric power system goes wrong, can in time switch to the cylinder drive, reach the purpose that in time closes ray beam outlet.
Description
Technical Field
The utility model relates to an ionizing radiation protection field especially relates to a critical device of radiation source goes out beam outlet gas-electricity hybrid and opens closing device.
Background
The radioactive source is a generic term for a radiation source made of a radioactive substance. The radioactive source can be divided into a sealed source and a non-sealed source according to the sealing condition of the radioactive source; and can be classified into alpha sources, beta sources, gamma sources, and radionuclide neutron sources according to the type of radiation they release. Radioactive sources have been widely used in the fields of industry, agriculture, medical hygiene, isotope instrumentation, scientific research, and the like.
The radiation emitted by the radioactive source has a certain energy, and can destroy cell tissues, thereby causing damage to human bodies. When a person is irradiated by a large amount of rays, symptoms such as dizziness, hypodynamia, anorexia, nausea, vomiting and the like are generated, and the body is seriously damaged and even possibly killed. The dose is below 150rad, the mortality rate is zero, but the effect is not harmless, and some symptoms can be shown after 20 years. Radioactivity can also damage genetic material, primarily by causing genetic mutations and chromosomal aberrations that compromise one or even several generations.
In the field of scientific research, the radiation source critical device usually adopts class I strong radioactive sources as emission sources, and if the radiation source is shielded improperly, the radiation source critical device can cause huge damage to organisms until the organisms die. In general application, the opening and closing of the beam outlet of the radioactive source are basically realized by a roller attached to a motor-driven shielding body. The roller is used as a stroke system for supporting and guiding a moving part, and due to the defects of the self structure, such as large starting resistance, poor positioning property, large inertia and the like, the system has poor running stability, low precision and increased power consumption of the motor.
Even if other driving modes are adopted, under the condition of still adopting motor driving, when power failure occurs (for example, a main power supply and a standby power supply cannot work normally), if effective safety measures are lacked, the shielding of a beam outlet of a radioactive source fails, and therefore ionizing radiation accidents are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a critical device of radiation source goes out beam port gas-electricity hybrid and opens closing device.
The utility model discloses an innovation point lies in the utility model discloses in use the cylinder drive as the standby measure, if electric power system breaks down, can in time switch pneumatic control, reach the purpose that in time closes ray beam outlet.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that: a gas-electric hybrid power opening and closing device for a beam outlet of a radioactive source critical device comprises a shielding lead chamber, wherein a radioactive source is arranged in the shielding lead chamber, a beam outlet is formed in the side wall of the shielding lead chamber, a shielding body is arranged at the beam outlet of the outer wall of the shielding lead chamber, a pushing assembly for pushing the shielding body is further arranged below the shielding body, the pushing assembly comprises a placing plate positioned below the beam outlet, a plurality of sliding rails arranged in parallel are arranged above the placing plate, a sliding block which slides on the sliding rails is arranged at the bottom of the shielding body, a lead screw which is parallel to the sliding rails is further arranged on the placing plate, two ends of the lead screw are connected with the placing plate through bearings, a connecting block which is in threaded connection with the lead screw is arranged at the bottom of the shielding body, and one end of; the shelving plate is further provided with an air cylinder, the stretching direction of the air cylinder is parallel to the sliding rail, and an air cylinder piston rod is connected with the connecting block.
Furthermore, the number of the slide rails is two, and the screw rod is located between the two slide rails. The sliding is more stable.
Furthermore, a plurality of supporting plates for supporting the placing plate are arranged at the bottom of the placing plate. The shelf board is reinforced more effectively.
Furthermore, the air cylinder is located below the placing plate, a rectangular through hole parallel to the sliding rail in the length direction is formed in the placing plate, the connecting block penetrates through the rectangular through hole and is connected with the air cylinder piston rod, and a through hole penetrating through the air cylinder piston rod is formed in the supporting plate.
The utility model has the advantages that:
the utility model discloses in use the cylinder drive as the standby measure, if electric power system goes wrong, can in time switch over pneumatic control, reach the purpose that in time closes the radiation source and go out the beam mouth. The safety accidents of the radioactive source are avoided, and people-oriented and safe operation is better embodied.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the pushing assembly and the cylinder.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: the utility model provides a critical device of radiation source goes out pencil mouth gas-electricity hybrid and opens closing device, is equipped with the radiation source including shielding lead chamber 1, shielding lead chamber 1 inside, and 1 lateral wall of shielding lead chamber is equipped with out pencil mouth 2, and 1 outer wall of shielding lead chamber 2 departments of being out pencil mouth are equipped with shielding body 3, and shielding body 3 below still is equipped with the promotion subassembly 4 that promotes shielding body 3, promotes subassembly 4 including being located out pencil 2 below shelve the board 5, shelve the board 5 bottom and be equipped with a plurality of backup pads 11 that are used for supporting shelve board 5. The placing plate 5 is provided with a plurality of parallel slide rails 6, the bottom of the shielding body 4 is provided with a slide block 7 sliding on the slide rails 6, the placing plate 5 is further provided with a screw rod 8 parallel to the slide rails 6, two ends of the screw rod 8 are connected with the placing plate 5 through bearings, the slide rails 6 are provided with two screw rods 8, and the screw rods 8 are located between the two slide rails 6. The bottom of the shield 4 is provided with a connecting block 9 in threaded connection with a screw rod 8, and one end of the screw rod 9 is connected with a motor 10 through a coupler and a speed reducer; the placing plate 5 is also provided with an air cylinder 12, the telescopic direction of the air cylinder 12 is parallel to the sliding rail 6, and the piston rod of the air cylinder 12 is connected with the connecting block 9. The cylinder 12 is arranged below the placing plate 5, a rectangular through hole 13 parallel to the sliding rail 6 in the length direction is formed in the placing plate 5, the connecting block 9 penetrates through the rectangular through hole 13 to be connected with a piston rod of the cylinder 12, and a through hole 14 penetrating through the piston rod of the cylinder 12 is formed in the supporting plate 11.
When the device works, the motor 10 is started to drive the screw rod 8 to rotate, the screw rod 8 rotates to drive the connecting block 9 to move, and therefore the sliding block 7 at the bottom of the shielding body 3 is driven to move along the sliding rail 6 to drive the beam outlet 2 to be opened and closed; when power fails, the cylinder 12 is started to drive the connecting block 9 to move, so that the sliding block 7 at the bottom of the shielding body 3 is driven to move along the sliding rail 6, and the beam outlet 2 is driven to be opened and closed.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (4)
1. A gas-electric hybrid power opening and closing device for a beam outlet of a radioactive source critical device is characterized by comprising a shielding lead chamber, wherein a radioactive source is arranged in the shielding lead chamber, a beam outlet is formed in the side wall of the shielding lead chamber, a shielding body is arranged at the beam outlet of the outer wall of the shielding lead chamber, a pushing assembly for pushing the shielding body is further arranged below the shielding body, the pushing assembly comprises a placing plate positioned below the beam outlet, a plurality of sliding rails arranged in parallel are arranged above the placing plate, a sliding block sliding on the sliding rails is arranged at the bottom of the shielding body, a lead screw parallel to the sliding rails is further arranged on the placing plate, two ends of the lead screw are connected with the placing plate through bearings, a connecting block in threaded connection with the lead screw is arranged at the bottom of the shielding body, and one end of the lead screw is connected with; the shelving plate is further provided with an air cylinder, the stretching direction of the air cylinder is parallel to the sliding rail, and an air cylinder piston rod is connected with the connecting block.
2. The radiation source critical apparatus outlet beam port gas-electric hybrid opening and closing device as claimed in claim 1, wherein there are two sliding rails, and the lead screw is located between the two sliding rails.
3. The radiation source critical apparatus beam outlet gas-electric hybrid opening and closing device as claimed in claim 1, wherein the bottom of the shelf board is provided with a plurality of supporting boards for supporting the shelf board.
4. The device for opening and closing the beam outlet port of the radioactive source critical device through gas-electric hybrid power as claimed in claim 3, wherein the cylinder is located below the placing plate, a rectangular through hole parallel to the sliding rail in the length direction is formed in the placing plate, the connecting block penetrates through the rectangular through hole and is connected with a cylinder piston rod, and a through hole penetrating through the cylinder piston rod is formed in the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376653.7U CN212907117U (en) | 2020-07-14 | 2020-07-14 | Gas-electric hybrid power opening and closing device for beam outlet of radioactive source critical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376653.7U CN212907117U (en) | 2020-07-14 | 2020-07-14 | Gas-electric hybrid power opening and closing device for beam outlet of radioactive source critical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212907117U true CN212907117U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021376653.7U Active CN212907117U (en) | 2020-07-14 | 2020-07-14 | Gas-electric hybrid power opening and closing device for beam outlet of radioactive source critical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212907117U (en) |
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2020
- 2020-07-14 CN CN202021376653.7U patent/CN212907117U/en active Active
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