Alarm device for detecting displacement of irradiation container

Abstract

The utility model discloses an alarm device for detecting displacement of an irradiation container, which comprises a detection device mounting rack, a detection mounting moving assembly arranged on one side of the detection device mounting rack, an automatic reciprocating assembly arranged on one side of the detection mounting moving assembly, and a support lifting assembly arranged on the periphery of the detection device mounting rack. According to the utility model, the prior art is improved, in actual use, when the ultrasonic range finder detects that the cargo box shifts and potential safety hazards possibly exist, the PLC controller enables the external buzzer to be started to remind an operator to pay attention, the improvement is carried out on the basis of the original safety design, the detection diversity is increased, and the detection efficiency is improved. The phenomenon that the displacement of the container is not detected when the bolt is normally inserted downwards can be effectively avoided, and the safe operation of the irradiation device can be further ensured.

Description

Technical Field

[0001] The utility model relates to the field of 60Co irradiation devices, in particular to an alarm device for detecting displacement of an irradiated cargo box. Background Art

[0002] As a large-scale device for the industrial application of nuclear technology, the 60Co irradiation device has certain particularities due to the presence of radioactive nuclides inside it; radiation safety issues have attracted much attention from the society. A general irradiation device is mainly composed of an irradiation room, a control room, a lifting source device, a personnel and cargo passage, a PLC control system, and a corresponding safety interlock system. In order to fully accommodate radioactive hazards, through effective maze shielding design and redundant safety defense ideas, it can be ensured that most of the radiation is shielded in the irradiation room during the operation of the device, which will not cause harm to the environment and human health. The decay process of 60Co radioactive source will continuously release gamma rays. The physical and chemical changes caused by the interaction between rays and matter can be widely used in the storage and preservation of food, sterilization and disinfection of medical equipment, modification of materials, radiation-induced mutation breeding and other research, which has very important economic and social value. At present, the sling transportation system outside the irradiation room of the irradiation device automatically sends the sling to the irradiation room for irradiation under the control of the PLC system. Every time the bolt on the sling is inserted and locked to the door frame, it will rub against the edge of the cargo box, resulting in a smooth contact surface on the edge of the cargo box. As the irradiation device runs for too long and the equipment ages, the bolt often inserts normally, but the cargo box displacement is not detected. In addition, in the radiation environment of the irradiation room, the anti-collision travel switch detection line will also bend with the operation of the device, and the displacement of the cargo box cannot be detected; there is a great radiation safety hazard. Utility Model Content

[0003] In view of the problems in the related technology, the utility model proposes an alarm device for detecting the displacement of an irradiated cargo box to overcome the above technical problems existing in the existing related technology.

[0004] To this end, the specific technical solutions adopted by the utility model are as follows:

[0005] An alarm device for detecting displacement of an irradiated cargo box comprises a detection device mounting frame, a detection installation moving assembly is arranged on one side of the detection device mounting frame, an automatic reciprocating assembly is arranged on one side of the detection installation moving assembly, and a supporting lifting assembly is arranged on the periphery of the detection device mounting frame;

[0006] In order to achieve the purpose of mobile detection installation, the detection installation mobile component includes a rack mounting frame, the rack mounting frame is connected to the detection device mounting frame, a rack mounting groove is opened inside the rack mounting frame, a transmission rack is installed inside the rack mounting groove, a transmission gear is meshed around the transmission rack, a rotating rod is connected to the middle of the transmission gear, a mobile mounting plate is movably connected to the periphery of the rotating rod, a transmission motor is connected to one end of the rotating rod, the transmission motor housing is connected to the mobile mounting plate, and an ultrasonic rangefinder is installed on one side of the mobile mounting plate.

[0007] Furthermore, limit plates are symmetrically provided on both sides of the rack mounting frame.

[0008] Furthermore, for the purpose of automatic reciprocation, the automatic reciprocation component includes a sliding plate, a sliding groove is provided inside the sliding plate, a sliding block is slidably fitted inside the sliding groove, and a travel switch is symmetrically installed inside the limit plate.

[0009] Furthermore, a PLC controller is installed on one side of the detection device mounting frame, and a control switch is electrically connected to one side of the PLC controller.

[0010] Furthermore, the travel switch and the transmission motor are electrically connected to the PLC controller respectively.

[0011] Furthermore, in order to support the lifting, the lifting support assembly includes a lifting fixing frame, which is symmetrically installed on both sides of the detection device mounting frame. An electric lifting rod is installed inside the lifting fixing frame, and one end of the electric lifting rod is connected to a support seat.

[0012] Furthermore, the electric lifting rod is electrically connected to the PLC controller.

[0013] The beneficial effects of the utility model are:

[0014] (1) The present invention improves upon the prior art. In actual use, when the ultrasonic rangefinder detects that the cargo box is displaced and there may be a safety hazard, the PLC controller activates an external buzzer to alert the operator. This improves upon the original safety design and increases the diversity of detection. This can effectively avoid the phenomenon where the bolt is inserted normally but the cargo box is not detected to be displaced, thereby further ensuring the safe operation of the irradiation device.

[0015] (2) In actual use, by setting a sliding block, the sliding block is connected to the movable mounting plate. When the movable mounting plate drives the sliding block to move, the sliding block can be moved along the sliding groove in the sliding plate, thereby achieving the purpose of stabilizing the movable mounting plate. When the movable mounting plate touches the left travel switch, the left travel switch causes the transmission motor to reverse through the PLC controller. When the movable mounting plate touches the right travel switch, the right travel switch causes the transmission motor to rotate forward through the PLC controller, thereby achieving the purpose of reciprocating movement of the movable mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the main structure of an alarm device for detecting displacement of an irradiated cargo box according to an embodiment of the utility model;

[0018] Figure 2 It is a stereoscopic diagram of an alarm device for detecting displacement of an irradiated cargo box according to an embodiment of the utility model.

[0019] Figure 3 It is a structural schematic diagram of a detection and installation moving component in an alarm device for detecting displacement of an irradiated cargo box according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of an automatic reciprocating component in an alarm device for detecting displacement of an irradiated cargo box according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Detection device mounting frame; 2. Detection mounting moving assembly; 201. Rack mounting frame; 202. Rack mounting slot; 203. Transmission rack; 204. Transmission gear; 205. Rotating rod; 206. Ultrasonic rangefinder; 207. Moving mounting plate; 208. Transmission motor; 3. Automatic reciprocating assembly; 301. Sliding plate; 302. Sliding slot; 303. Sliding block; 304. Travel switch; 4. Support lifting assembly; 401. Lifting fixed frame; 402. Electric lifting rod; 403. Support seat; 5. Limit plate; 6. PLC controller; 7. Control switch; 8. Buzzer. 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] According to an embodiment of the utility model, an alarm device for detecting the displacement of an irradiated cargo box is provided, including a detection device mounting frame 1, a detection device mounting moving component 2 is provided on one side of the detection device mounting frame 1, an automatic reciprocating component 3 is provided on one side of the detection device mounting moving component 2, and a supporting lifting component 4 is provided on the periphery of the detection device mounting frame 1.

[0025] like Figure 1-4 As shown, according to the alarm device for detecting the displacement of the irradiated cargo box according to the embodiment of the utility model, the detection installation moving component 2 includes a rack mounting frame 201, the rack mounting frame 201 is connected to the detection device mounting frame 1, a rack mounting groove 202 is opened inside the rack mounting frame 201, a transmission rack 203 is installed inside the rack mounting groove 202, a transmission gear 204 is meshed on the periphery of the transmission rack 203, a rotating rod 205 is connected to the middle part of the transmission gear 204, a mobile mounting plate 207 is movably connected to the periphery of the rotating rod 205, a transmission motor 208 is connected to one end of the rotating rod 205, the housing of the transmission motor 208 is connected to the mobile mounting plate 207, an ultrasonic rangefinder 206 is installed on one side of the mobile mounting plate 207, and limit plates 5 are symmetrically provided on both sides of the rack mounting frame 201.

[0026] Through the above technical scheme, by setting the rack mounting frame 201, the purpose of facilitating the installation of the transmission rack 203 through the rack mounting groove 202 is achieved, so that the transmission motor 208 can drive the rotating rod 205 to rotate in the rack mounting frame 201, and when the rotating rod 205 rotates, the transmission gear 204 can rotate, and when the transmission gear 204 rotates, the movable mounting plate 207 can be driven to move through the transmission rack 203, and the movable mounting plate 207 is moved back and forth through the automatic reciprocating component 3, and the lower edge of the cargo box is detected by the ultrasonic rangefinder 206. When the ultrasonic rangefinder 206 of model DX50 detects that the cargo box has a displacement of greater than or equal to 1 cm, there may be a safety hazard, the buzzer 8 on one side of the detection device mounting frame 1 is started through the S7-200 PLC controller 6 to remind the operating personnel to pay attention, and the limit plate 5 is set to facilitate the limit of the movable mounting plate 207.

[0027] like Figure 1-4 As shown, according to the alarm device for detecting the displacement of the irradiated cargo box according to the embodiment of the utility model, the automatic reciprocating component 3 includes a sliding plate 301, a sliding groove 302 is opened inside the sliding plate 301, a sliding block 303 is slidably matched inside the sliding groove 302, and a travel switch 304 is symmetrically installed inside the limit plate 5. A PLC controller 6 is installed on one side of the detection device mounting frame 1, and a control switch 7 is electrically connected to one side of the PLC controller 6. The travel switch 304 and the transmission motor 208 are electrically connected to the PLC controller 6 respectively.

[0028] Through the above technical scheme, by setting the sliding block 303, the sliding block 303 is connected to the movable mounting plate 207. When the movable mounting plate 207 drives the sliding block 303 to move, the sliding block 303 can be moved along the sliding groove 302 in the sliding plate 301, thereby achieving the purpose of stabilizing the movable mounting plate 207. When the movable mounting plate 207 touches the left travel switch 304, the left travel switch 304 reverses the transmission motor 208 through the PLC controller 6. When the movable mounting plate 207 touches the right travel switch 304, the right travel switch 304 rotates the transmission motor 208 forward through the PLC controller 6, thereby achieving the purpose of reciprocating movement of the movable mounting plate 207, so that the control switch 7 can achieve the function of manually controlling the device.

[0029] like Figure 1-4 As shown, according to the alarm device for detecting the displacement of the irradiated cargo box according to the embodiment of the utility model, the supporting lifting component 4 includes a lifting fixing frame 401, and the lifting fixing frame 401 is symmetrically installed on both sides of the detection device mounting frame 1, and an electric lifting rod 402 is installed inside the lifting fixing frame 401, and one end of the electric lifting rod 402 is connected to the support seat 403, and the electric lifting rod 402 is electrically connected to the PLC controller 6.

[0030] Through the above technical solution, by setting the lifting and fixing frame 401, the purpose of facilitating the installation of the electric lifting rod 402 is achieved, and the electric lifting rod 402 can drive the support seat 403 to rise and fall, thereby achieving the effect of adjusting the height of the detection device installation frame 1.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] In summary, with the aid of the above technical solution of the utility model, by setting the rack mounting frame 201, the purpose of facilitating the installation of the transmission rack 203 through the rack mounting groove 202 is achieved, so that the transmission motor 208 can drive the rotating rod 205 to rotate in the rack mounting frame 201, and when the rotating rod 205 rotates, the transmission gear 204 can rotate, and when the transmission gear 204 rotates, the movable mounting plate 207 can be driven to move through the transmission rack 203, and the movable mounting plate 207 is moved back and forth through the automatic reciprocating component 3, and the lower edge of the cargo box is detected by the ultrasonic rangefinder 206 at the same time. When the DX50 ultrasonic rangefinder 206 detects that the cargo box has a displacement of greater than or equal to 1 cm, there may be a safety hazard, the buzzer 8 on one side of the detection device mounting frame 1 is started through the PLC controller 6 to remind the operating personnel to pay attention, and by setting the limit plate 5, it is convenient to limit the movable mounting plate 207;

[0033] By setting a sliding block 303, the sliding block 303 is connected to the mobile mounting plate 207. When the mobile mounting plate 207 drives the sliding block 303 to move, the sliding block 303 can be moved along the sliding groove 302 in the sliding plate 301, so as to achieve the purpose of stabilizing the mobile mounting plate 207. When the mobile mounting plate 207 touches the left travel switch 304, the left travel switch 304 causes the transmission motor 208 to reverse through the PLC controller 6. When the mobile mounting plate 207 touches the right travel switch 304, the right travel switch 304 causes the transmission motor 208 to rotate forward through the PLC controller 6, so as to achieve the purpose of reciprocating movement of the mobile mounting plate 207, so that the control switch 7 can achieve the function of manually controlling the device.

[0034] By providing the lifting fixing frame 401 , the purpose of facilitating the installation of the electric lifting rod 402 is achieved, and the electric lifting rod 402 can drive the support seat 403 to move up and down, thereby achieving the effect of adjusting the height of the detection device installation frame 1 .

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. An alarm device for detecting displacement of an irradiated cargo box, characterized in that: It comprises a detection device mounting frame (1), a detection device mounting frame (1) having a detection mounting moving assembly (2) on one side, an automatic reciprocating assembly (3) on one side of the detection device mounting moving assembly (2), and a supporting lifting assembly (4) on the periphery of the detection device mounting frame (1); The detection installation moving assembly (2) comprises a rack mounting frame (201), the rack mounting frame (201) being connected to the detection device mounting frame (1), the rack mounting frame (201) being provided with a rack mounting groove (202), a transmission rack (203) being installed in the rack mounting groove (202), a transmission gear (204) being meshed on the periphery of the transmission rack (203), a rotating rod (205) being connected to the middle of the transmission gear (204), a movable mounting plate (207) being movably connected to the periphery of the rotating rod (205), a transmission motor (208) being connected to one end of the rotating rod (205), a housing of the transmission motor (208) being connected to the movable mounting plate (207), and an ultrasonic rangefinder (206) being installed on one side of the movable mounting plate (207).

2. The alarm device for detecting displacement of an irradiated cargo box according to claim 1, characterized in that: Limiting plates (5) are symmetrically provided on both sides of the rack mounting frame (201).

3. The alarm device for detecting displacement of an irradiated cargo box according to claim 2, characterized in that: The automatic reciprocating assembly (3) comprises a sliding plate (301), a sliding groove (302) is provided inside the sliding plate (301), a sliding block (303) is slidably engaged inside the sliding groove (302), and a travel switch (304) is symmetrically installed inside the limit plate (5).

4. The alarm device for detecting displacement of an irradiated cargo box according to claim 3, characterized in that: A PLC controller (6) is installed on one side of the detection device mounting frame (1), and a control switch (7) is electrically connected to one side of the PLC controller (6).

5. The alarm device for detecting displacement of an irradiated cargo box according to claim 4, characterized in that: The travel switch (304) and the transmission motor (208) are electrically connected to the PLC controller (6) respectively.

6. The alarm device for detecting displacement of an irradiated cargo box according to claim 5, characterized in that: The support lifting assembly (4) comprises a lifting fixing frame (401), wherein the lifting fixing frame (401) is symmetrically mounted on both sides of the detection device mounting frame (1), and an electric lifting rod (402) is mounted inside the lifting fixing frame (401), and one end of the electric lifting rod (402) is connected to a support seat (403).

7. The alarm device for detecting displacement of an irradiated cargo box according to claim 6, characterized in that: The electric lifting rod (402) is electrically connected to the PLC controller (6).

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