CN210534929U

CN210534929U - Alarm device for irradiation equipment

Info

Publication number: CN210534929U
Application number: CN201921143250.5U
Authority: CN
Inventors: 姚江涛; 尹龙辉; 肖广旺; 魏利霞
Original assignee: Zhongguang Nuclear Gori Shenzhen Technology Co ltd
Current assignee: Zhongguang Nuclear Gori Shenzhen Technology Co ltd
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-05-15
Anticipated expiration: 2029-07-20

Abstract

An alarm device used for irradiation equipment comprises a voltage stabilizing circuit, a short message prompt module, a buzzer, an adjustable contact switch, a control circuit and a light control circuit; the multiple photoresistors of the multi-path light-operated circuit are respectively arranged in the multiple grooves on the outer side of the lower portion of the annular isolation plate at the lower end of the irradiation container body, the multiple adjustable contact switches are respectively arranged on the outer side of the lower end of the irradiation container body, and the voltage stabilizing circuit, the short message prompting module, the buzzer, the rest parts of the multi-path light-operated circuit and the control circuit are arranged in the element box and are connected with the photoresistors through leads. This is novel as long as irradiation container body and irradiation equipment body opening upper portion side have one to locate not sealed, perhaps a contact switch's button does not contact irradiation equipment body opening upper portion among them, and the signal sounder all can send warning sound field alarm to through SMS suggestion managers, can also break off the working power supply of irradiation equipment body, effectively prevented that the irradiation source from revealing and the problem that the product irradiation effect is not good.

Description

Alarm device for irradiation equipment

Technical Field

The utility model relates to a detection alarm device technical field that irradiation equipment used, especially an alarm device that irradiation equipment used.

Background

An irradiation apparatus is a device used in the industrial field. The method has applications in a plurality of industries, such as jewelry industry, which applies irradiation processing to change the color of jewelry jade, food industry, which applies irradiation sterilization to food and prolongs the quality guarantee period of food, chemical industry, which applies modification irradiation to chemical materials, improves the physical, mechanical and chemical properties of the materials, and battery diaphragm material and cable material, which improve the physical properties thereof.

In various irradiation devices, products to be irradiated are placed in an irradiation container during operation, then the irradiation container (in which a product placing frame is arranged) in which the irradiation products are placed is placed on an opening at the upper end of irradiation equipment with an irradiation source (the irradiation container is controlled to move up and down in the upper end of the irradiation equipment according to needs in a generally electric driving mode or pneumatic component driving mode), the irradiation source generated by the irradiation equipment acts on the irradiation device in the mode of irradiating the products in the container at the upper end through the opening, and the irradiation device is widely used in non-assembly line irradiation production (for example, the irradiation device used in the jewelry processing industry). In order to ensure that the irradiation effect and the radioactive source generated by the irradiation equipment do not leak, it is necessary to ensure effective contact between the lower end of the irradiation container and the upper end (generally having a flexible sealing material) around the opening of the irradiation equipment. The existing irradiation container and irradiation equipment shell are generally made of metal materials, and in actual production, if the metal materials are deformed, sunken and the like due to various reasons (such as collision and the like), or workers are not careful in operation, and when foreign matters fall on the upper end of an opening of irradiation equipment to cause a gap between the irradiation container and the upper end of the opening of the irradiation equipment, an irradiation source can be leaked in work, and meanwhile, a good product irradiation effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that the prior irradiation device which adopts the working mode that an irradiation container is placed on an opening of irradiation equipment and receives an irradiation source in the irradiation equipment when in work can cause the leakage of the irradiation source and cause that the required irradiation product can not achieve good irradiation effect when the sealing between the irradiation container and the irradiation equipment is not good due to the limited structure, the utility model provides a plurality of photosensitive probes are arranged in a plurality of directions at the outer side end of the bottom of the irradiation container, a plurality of adjustable contact switches are arranged at the outer side end of the lower part of the irradiation container, when in use, as long as one side end of the irradiation container and the upper part of the opening of the irradiation equipment is not well sealed, external light enters the irradiation container, or an action key of one contact switch is not contacted with the upper part of the opening of the irradiation equipment, a sounder can give out warning sound on-site alarm and can prompt managers through short messages, and the working power supply of the irradiation equipment can be disconnected, so that the irradiation source leakage and the poor irradiation effect of the product are effectively prevented.

The utility model provides a technical scheme that its technical problem adopted is:

an alarm device used for irradiation equipment comprises a voltage stabilizing circuit, a short message prompt module and a buzzer, and is characterized by also comprising an adjustable contact switch, a control circuit and a multi-path light-operated circuit; the multi-path light control circuit comprises a plurality of photoresistors, resistors, NPN triodes and relays, the plurality of photoresistors are respectively arranged on an insulating plate, the upper ends of the insulating plates are respectively and fixedly arranged in a plurality of grooves on the outer side of the lower part of an annular isolating plate at the lower end of the irradiation container body, the light receiving surfaces of the plurality of photoresistors face the lower end, and the height of the lower end is lower than that of the lower ends of the grooves; the multiple adjustable contact switches are respectively fixedly arranged on the outer side of the lower end of the irradiation container body at intervals, the voltage stabilizing circuit, the short message prompting module, the buzzer, the resistor, the relay and the NPN triode of the multi-path light control circuit are arranged in the element box; the power supply input end of the voltage stabilizing circuit is connected with an alternating current 220V power supply through a lead, the power supply output end of the voltage stabilizing circuit is connected with the power supply input ends of the first light-operated circuit and the control circuit through leads respectively, between every two light-operated circuits, the power supply output end of the previous light-operated circuit and the power supply input end of the adjacent light-operated circuit are connected through leads respectively, the power supply output end of the last light-operated circuit and the signal input end of the control circuit as well as one end of a plurality of serially-connected adjustable contact switches are connected through leads, the other end of the plurality of adjustable contact switches is connected with the signal input end of the control circuit through leads, the positive power supply output end of the control circuit is connected with the positive power supply input end of the audible alarm and the short message prompting module through leads, and the negative power supply output end of the voltage stabilizing circuit is connected with the negative power, the 380V alternating current power supply and three control power supply input ends of the control circuit are respectively connected through leads, and the alternating current control power supply output end of the control circuit and the power supply input end of the irradiation equipment body are respectively connected through leads.

Further, the stabilized voltage power supply is an alternating current 220V-to-direct current switching power supply module.

Furthermore, the negative power input end of the short message prompt module is connected with the trigger signal input end through circuit board wiring.

Furthermore, each adjustable contact switch comprises a shell, a normally open contact microswitch and a movable rod, wherein a guide hole which is distributed from top to bottom is formed in the middle of the upper end of the shell, the upper end of the microswitch is fixedly installed at the lower end of the movable rod, the upper portion of the movable rod is located in the guide hole, an opening with an internal thread is formed in the middle of the front end of the shell, a screw rod is screwed into the opening, and an action key of the microswitch is located on the outer side of the middle of the lower end of the shell.

Furthermore, the control circuit comprises two relays which are connected through a circuit board in a wiring mode, the negative power input ends of the two relays are connected, and the normally closed contact end of the first relay is connected with the positive power input end of the second relay.

Furthermore, in each path of light control circuit, one end of the photosensitive resistor is connected with the input end of the positive power supply of the relay and the input end of the control power supply through leads, the other end of the photosensitive resistor is connected with one end of the resistor through leads, the other end of the resistor is connected with the base of the NPN triode through leads, and the collector of the NPN triode is connected with the input end of the negative power supply of the relay through leads.

The utility model has the advantages that: when the novel irradiation equipment is used, when a required irradiation product is placed in the irradiation container body, then the lower end of the irradiation container body is placed at the upper end around the opening of the irradiation equipment body, if the lower end of the irradiation container body is tightly contacted with the upper end of the opening of the irradiation equipment body, the photoresistor of the multi-path light-operated circuit is not acted by an external light source, and a plurality of action keys at the lower end of the contact switch are simultaneously contacted with the upper part of the side end of the opening of the irradiation equipment body, the alarm does not sound, and the irradiation equipment body is normally powered to; in actual use, as long as the side ends of the upper parts of the openings of the irradiation container body and the irradiation equipment body are not sealed, external light enters the irradiation container body, or the action key of one contact switch does not contact the upper part of the opening of the irradiation equipment body, the alarm can give out warning sound for field alarm, and prompts a manager through a short message, so that the manager can find out the reason in time for maintenance, can disconnect the working power supply of the irradiation equipment body, and effectively prevents the problems of exposure of an irradiation source and poor irradiation effect of a product. Based on the above, this is novel has good application prospect.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention and the local irradiation container body and the local irradiation equipment body.

Fig. 2 is a schematic structural diagram of an adjustable contact switch of the present invention.

Fig. 3 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, an alarm device for irradiation equipment includes a voltage stabilizing circuit 1, a short message prompt module 2, a buzzer 3, an adjustable contact switch 4, a control circuit 5, and a light control circuit 6; the three paths of light control circuits 6 respectively comprise photoresistors, resistors, NPN triodes and relays, the three photoresistors 61 are respectively arranged on a circular insulating plate, the upper ends of the three insulating plates are respectively arranged in three grooves 71 on the outer side of the lower part of an annular isolating plate at the lower end of the irradiation container body 7 at intervals in an adhesive bonding or screw nut fixing mode, the light receiving surfaces of the three photoresistors 61 face the lower end, and the height of the lower end is lower than that of the lower ends of the grooves 71; the three adjustable contact switches 4 are respectively installed on the outer side of the lower end of the irradiation container body 7 at intervals at a certain equal distance in a screw nut fixing mode or an adhesive bonding fixing mode, the voltage stabilizing circuit 1, the short message prompting module 2, the resistor, the relay and the NPN triode of the multi-path light control circuit 6, the control circuit 5 and the buzzer 3 are installed on a circuit board, the circuit board is installed in an element box 8, and the element box 8 is fixedly installed at the outer side end of the irradiation container body 7 through a screw nut.

As shown in fig. 1 and 2, each adjustable contact switch 4 comprises a rectangular housing 41, a normally open contact microswitch 42 and a movable rod 43, wherein the rectangular housing 41 has a rectangular guide hole 44 distributed from top to bottom in the middle of the upper end, the upper end of the housing of the microswitch 42 is bonded and fixed to the lower end of the rectangular movable rod 43, the upper portion of the movable rod 43 is positioned in the guide hole 44, the uppermost end of the movable rod 43 is provided with a rectangular operating handle 45, the middle part of the front end of the rectangular shell is provided with an opening 46 with internal threads, a screw rod 47 is screwed into the opening, the movable rod 43 can freely move up and down along the guide hole 44, the action key of the microswitch 42 is positioned on the outer side of the middle part of the lower end of the shell 41, the three adjustable contact switches 42 are respectively arranged behind the outer side of the lower end of the irradiation container body 7, and the lower ends of the action keys are positioned at a certain distance below the bottom of the irradiation container body 7. The wire connected with the photoresistor 61 of the three-way light control circuit is sleeved in an insulating guide pipe, the insulating guide pipe is led out from an opening in the middle of the side end of the irradiation container body 7 and is positioned in the element box 8, and the opening is sealed by sealant. If the irradiation container body 7 is placed on the irradiation equipment body 9 and the two are tightly combined, the internal contacts of the three micro-switches 42 are respectively closed.

The regulated power supply is a switching power supply module product of 220V AC to 12V DC, model NES-2KW, brand MEN WAELL MW. The short message prompt module A1 is a GSM short message module finished product with the model YK-S1108/3108, the short message module finished product A1 is provided with a trigger signal input end X, a SIM card is arranged in the short message module finished product A1, after a low level signal is input from the trigger signal input end X, a short message can be sent to an internal preset telephone number, before the short message prompt module is used, a short message can be stored in the short message module finished product A1 in advance through the self function of the short message module finished product A1, the content is 'equipment failure' and the like, and a negative power supply input end GND (pin 2) of the short message module finished product A1 is connected with the trigger signal input X. The buzzer B is a high-decibel buzzer alarm finished product with Brand Beran and model BJ-1. The control circuit comprises two relays J4 and J5 which are connected through circuit board wiring, the negative power input ends of the two relays J4 and J5 are connected, and the normally closed contact end of the first relay J4 is connected with the positive power input end of the second relay J5. In the first light control circuit, one end of a photosensitive resistor RL is connected with the positive power supply input end and the control power supply input end of a relay J1 through leads, the other end of the photosensitive resistor RL is connected with one end of a resistor R through leads, the other end of the resistor R is connected with the base electrode of an NPN triode Q through leads, and the collector electrode of the NPN triode Q is connected with the negative power supply input end of a relay J1 through leads. In the second path of light control circuit, one end of a photosensitive resistor RL1 is connected with the positive power supply input end of a relay J2 and the control power supply input end through leads, the other end of the photosensitive resistor RL1 is connected with one end of a resistor R1 through leads, the other end of the resistor R1 is connected with the base electrode of an NPN triode Q1 through leads, and the collector electrode of the NPN triode Q1 is connected with the negative power supply input end of the relay J2 through leads. In the third light-operated circuit, one end of a photosensitive resistor RL2 is connected with the positive power input end of a relay J3 and the control power input end through leads, the other end of the photosensitive resistor RL2 is connected with one end of a resistor R2 through leads, the other end of the resistor R2 is connected with the base electrode of an NPN triode Q2 through leads, and the collector electrode of the NPN triode Q2 is connected with the negative power input end of the relay J3 through leads.

As shown in FIG. 3, the power input terminals 1 and 2 of the voltage stabilizing circuit A are respectively connected with an alternating current 220V power supply through wires.

Pins

3 and 4 of a power output end of the voltage stabilizing circuit A, one end of a photoresistor RL at two power input ends of the first light control circuit, an emitter of an NPN triode Q, and a control power input end and a negative power input end of a power input two-end relay J4 of the control circuit are respectively connected through leads; a normally closed contact end of a relay J1 at two power output ends of the first path of light control circuit and an emitter of an NPN triode Q are connected with one end of a photoresistor RL1 at two power input ends of the second path of light control circuit and an emitter of an NPN triode Q1 through leads respectively; the normally closed contact end of a relay J2 at the two ends of the power output of the second path of light control circuit and the emitting electrode of an NPN triode Q1 are connected with one end of a photoresistor RL2 at the two ends of the power input of the third path of light control circuit and the emitting electrode of an NPN triode Q2 through leads respectively. The normally closed contact end of a power output end relay J3 of the third light-operated circuit is connected with one end of a micro switch S1 of the first adjustable contact switch through a lead, the other end of the micro switch S1 of the first adjustable contact switch is connected with one end of a micro switch S2 of the second adjustable contact switch through a lead, the other end of the micro switch S2 of the second adjustable contact switch is connected with one end of a micro switch S3 of the third adjustable contact switch through a lead, and the other end of the micro switch S3 of the third adjustable contact switch is connected with the positive power input end of a signal input end relay J4 of the control circuit through a lead. The positive power output end of the control circuit is connected with a normally closed contact end of a relay J4, a sounder B and a positive power input end VCC (pin 1) of a short message prompt module A1 through leads. The negative power output end 4 pin of the voltage stabilizing circuit A is connected with the negative power input end of the control circuit relay J4, the negative power input end of the buzzer B and the negative power input end GND (2 pin) of the short message module A1 through leads, the 380V alternating current power supply is connected with the three control power input ends of the relay J5 of the control circuit through leads respectively, and the three normally closed contact ends of the relay J3 of the alternating current control power output end of the control circuit and the power input end of the irradiation equipment body FZ are connected through leads respectively.

As shown in fig. 1, 2 and 3, when a desired irradiation product is placed in the irradiation container body 7, and then the lower end of the irradiation container body 7 is placed around the opening of the irradiation equipment body 9 through the driving of the electric driving or pneumatic component, a user can turn on the power supply of the voltage stabilizing circuit a and turn on the power supply of the irradiation equipment body FZ, and the whole equipment enters a working state. After a 220V alternating-current power supply enters pins 1 and 2 of a voltage stabilizing circuit A, under the action of an internal circuit of the voltage stabilizing circuit A,

pins

3 and 4 of the voltage stabilizing circuit A can output a stable 12V direct-current power supply to enter two ends of a power supply input end of a first light control circuit, and then the first light control circuit is in a power-on working state; in operation, if the lower end of the irradiation container body 7 is in close contact with the upper end of the opening of the irradiation equipment body 9, an external light source (including a light source of a lighting lamp) cannot irradiate on the photoresistor RL, the resistance value of the photoresistor RL is large (about 10M), the voltage entering the base electrode of the NPN triode Q through the photoresistor RL and the resistor R is lower than 0.7V, the NPN triode Q is cut off, and then the input end of a control power supply (communicated with the pin 3 of the voltage stabilizing circuit A) of the relay J1 is in a power-off state and is communicated with the normally closed; because the input end of the anode power supply of the second path of light control circuit is connected with the normally closed contact end of the relay J1, the second path of light control circuit is in an electrified working state at the moment; in operation, if there is a gap between the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation device body 9 due to various reasons (for example, the lower part of the metal material irradiation container body 7 is deformed and dented due to collision, etc., or the worker is not careful during operation, and foreign matter falls on the upper end of the opening of the irradiation device body 9, causing a gap between the irradiation container body 7 and the upper end of the opening of the irradiation device body 9), an external light source will irradiate on the photoresistor RL, the resistance value of the photoresistor RL becomes small (about 100K), at this moment, the voltage of the power output by the pin 3 of the voltage regulator circuit a is reduced by the photoresistor RL and the resistor R and then enters the base of the NPN triode Q, the NPN triode Q conducts the low level output by the collector thereof and enters the negative power input end of the relay J1 (the positive power, the relay J1 is in an electrified attraction state, and controls the power supply input end and the normally closed contact end to be open-circuited; because the positive power supply input end of the second path of light control circuit is connected with the normally closed contact end of the relay J1, the second path of light control circuit is in a power-off and non-operating state at the moment. When the second light control circuit is powered on to work, in work, if the lower end of the irradiation container body 7 is in close contact with the upper end of the opening of the irradiation equipment body 9, an external light source (including a light source of a lighting lamp) cannot irradiate on the photoresistor RL1, the photoresistor R1L has a large resistance value (about 10M), the voltage entering the base electrode of the NPN triode Q1 through the photoresistor RL1 and the resistor R1 is lower than 0.7V, the NPN triode Q1 is cut off, and then the relay J2 is in a power-off state and controls the power supply input end (communicated with the 3 pin of the voltage stabilizing circuit A) to be communicated with the normally closed contact; because the positive power supply input end of the third light-operated circuit is connected with the normally closed contact end of the relay J2, the third light-operated circuit is in an electrified working state at the moment; in operation, if there are gaps at the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation equipment body 9 due to various reasons, an external light source can irradiate on the photoresistor RL1, the resistance value of the photoresistor RL1 becomes small (about 100K), at the moment, a power supply output by a pin 3 of the voltage stabilizing circuit A is subjected to voltage reduction and current limitation by the photoresistor RL1 and the resistor R1, the voltage of the base electrode of the NPN triode Q1 is higher than 0.7V, the NPN triode Q1 conducts the collector thereof to output low level and enters the negative power input end of the relay J2 (the positive power input end is communicated with the pin 3 of the voltage stabilizing circuit A), and then the relay J2 is in an electric attraction state and; because the positive power supply input end of the third light-operated circuit is connected with the normally closed contact end of the relay J2, the third light-operated circuit is in a power-off and non-operating state at the moment. When the third light-operated circuit is powered on to work, in work, if the lower end of the irradiation container body 7 is in close contact with the upper end of the opening of the irradiation equipment body 9, an external light source cannot irradiate on the photoresistor RL2, the resistance value of the photoresistor R12 is large (about 10M), the voltage entering the base electrode of the NPN triode Q2 through the photoresistor RL2 and the resistor R2 is lower than 0.7V, the NPN triode Q2 is cut off, and then the relay J3 is in a power-off state, and the control power supply input end (communicated with the 3 pin of the voltage stabilizing circuit A) is communicated with the normally closed contact end; because one end of the microswitch S1 is connected with the normally closed contact end of the relay J3, and the other end of the microswitch S3 is connected with the positive power supply input end of the control circuit relay J4, one ends of the control circuit relay J4 and the microswitch S1 are in an electrified working state (the internal contacts of the microswitches S1, S2 and S3 are in a closed state at the moment); in operation, if there are gaps at the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation equipment body 9 due to various reasons, an external light source can irradiate on the photoresistor RL2, the resistance value of the photoresistor RL2 becomes small (about 100K), at the moment, a power supply output by a pin 3 of the voltage stabilizing circuit A is subjected to voltage reduction and current limitation by the photoresistor RL2 and the resistor R2, the voltage of the base electrode of the NPN triode Q2 is higher than 0.7V, the NPN triode Q2 conducts the collector thereof to output low level and enters the negative power input end of the relay J3 (the positive power input end is communicated with the pin 3 of the voltage stabilizing circuit A), and then the relay J3 is in an electric attraction state and; because one end of the microswitch S1 is connected with the normally closed contact end of the relay J3, and the other end of the microswitch S3 is connected with the positive power supply input end of the control circuit relay J4, one end of the control circuit relay J4 and one end of the microswitch S1 are in a power-off non-working state.

As shown in fig. 1, 2 and 3, in operation, if the lower end of the irradiation container body 7 is in close contact with the upper end of the opening of the irradiation equipment body 9, the action keys of the three micro-switches S1, S2 and S3 are just in contact with the side part of the upper end of the opening of the irradiation equipment body 9 respectively, and the internal contacts of the three micro-switches S1, S2 and S3 are in a closed state; because the normally closed contact end of the relay J3 is connected with one end of the microswitch S1, the other end of the microswitch S1 is connected with one end of the microswitch S2, the other end of the second microswitch S2 is connected with one end of the third microswitch S3, and the other end of the third microswitch S3 is connected with the positive power supply input end of the relay J4, the relay J4 can be electrically pulled to open the circuit of the control power supply input end and the normally closed contact end; because the short message module A1 and the positive power input end of the buzzer B, the positive power input end of the relay J5 and the normally closed contact end of the relay J4 are connected, at the moment, the short message module A1, the buzzer B and the relay J5 are all in a power-off state, and the three control power input ends and the three normally closed contact ends of the relay J5 are respectively closed; because the 380V alternating current power supply is connected with the three control power supply input ends of the relay J5, and the three normally closed contact ends of the relay J5 are respectively connected with the three power supply input ends of the irradiation equipment body FZ, the irradiation equipment body FZ can be in a normal power-on working state after the lower end of the irradiation container body 7 is tightly contacted with the upper end of the opening of the irradiation equipment body 9. In actual operation, if the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation device body 9 are separated from each other due to any one of the directions and for any reason (for example, the lower portion of the metal material irradiation container body 7 is deformed or dented due to collision or the like, or the operator is not careful during operation, and a foreign object falls on the upper end of the opening of the irradiation device body 9, causing a gap between the irradiation container body 7 and the upper end of the opening of the irradiation device body 9), the lower end of one of the micro switches near the separation distance and the upper end of the opening of the irradiation device body 9 will be separated from each other, and the two contacts inside the micro switch will be in an open circuit state, so that, since the normally closed contact end of the relay J3 is connected to one end of the micro switch S1, the other end of the micro switch S1 is connected to one end of the micro switch S, the other end of the third microswitch S3 is connected with the positive power supply input end of the relay J4, so no matter any one microswitch internal contact is open at the moment, the relay J4 loses power and does not attract the control power supply input end and the normally closed contact end to be closed. In practical situations, as long as any one side of the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation equipment body 9 has a gap for various reasons, the photoresistor near the gap can be reduced in resistance value due to illumination of a light receiving surface, and then the photoresistor connected with the photoresistor can be electrified to pull the control power supply input end and the normally closed contact end of the photoresistor to open the circuit; because the normally closed contact end of the relay J1 is connected with the positive power supply input end of the second light-operated circuit, the normally closed contact end of the relay J2 is connected with the positive power supply input end of the third light-operated circuit, and the normally closed contact end of the relay J3 is connected with one end of the microswitch S1, as long as the light receiving surface of any photoresistor is illuminated, and the light-operated circuit relay connected with the photoresistor is electrified to attract the control power supply input end and the normally closed contact end to be opened, no positive power supply enters the positive power supply input end of the relay J4, and further the relay J4 is electrified to no longer attract the control power supply input end and the normally closed contact end to be closed. When the irradiation container body 7 and the irradiation equipment body 9 are not well sealed due to various reasons, and the relay J4 is not electrified and is not attracted to close the control power supply input end and the normally closed contact end, the short message module A1, the sounder B and the relay J5 are connected with the normally closed contact end of the relay J4 (the short message module A1, the sounder B and the relay J5 are communicated with 4 pins of the voltage stabilizing circuit A, and the relay J4 controls the power supply input end to be communicated with 3 pins of the voltage stabilizing circuit A), so that the short message module A1, the sounder B and the relay J5 can be electrified to work at the moment; the short message module A1 can send a short message to the mobile phone of the manager after the power is on (the manager can know the field condition at the far end and monitor the working condition), the sounder B can send the alarm sound on the field to prompt the operator, thus the operator can find the reason in time after hearing the alarm sound and maintain the fault; the control power supply input end and the normally closed contact end of the relay J5 are opened after the relay J5 is electrified and attracted, because the 380V alternating current power supply is connected with the three control power supply input ends of the relay J5, and the three normally closed contact ends of the relay J5 are respectively connected with the power supply input end of the irradiation equipment body FZ, therefore, gaps are reserved at the lower end of the irradiation container body 7 and the upper end of the opening of the irradiation equipment body 9, and after the relay J5 is electrified and attracted, the irradiation equipment body FZ can not work again, and the irradiation source is prevented from being leaked.

As shown in fig. 1, 2 and 3, in actual use, as long as one of the side ends of the upper openings of the irradiation container body 7 and the irradiation equipment body 9 is not sealed, external light enters the irradiation container body 7, or one of the action keys of the contact switch is not in contact with the upper opening of the irradiation equipment body 9 (double insurance function, preventing light-operated circuit or contact switch, one of them cannot detect and alarm after being damaged), the alarm can give out alarm sound to alarm on site, and prompts management personnel through short messages, the operator can find out the reason in time for maintenance, and can cut off the working power supply of the irradiation equipment body FZ, thereby effectively preventing the problems of radiation source leakage and poor product irradiation effect. In the use of the novel irradiation equipment, if the space between the irradiation container body 7 and the irradiation equipment body 9 is completely sealed after the inspection, but the sounder B still alarms, the short message module A1 still sends a short message, and the irradiation equipment body FZ cannot work all the time, the lower end operation key of one microswitch is probably not contacted with the upper end of the lower part of the irradiation equipment body 9, and the internal contact points are probably in an open circuit state. At the moment, an operator can respectively unscrew the screw rods 47 of the three adjustable contact switches to the left, then pushes the movable rod 43 downwards along the guide hole 44, when the lower part of an operation key of the microswitch 42 is just in contact with the upper end of the lower part of the irradiation equipment body 9 and two contacts in the microswitch are closed, the adjustment is not carried out (in the adjustment, the adjustment can be carried out by connecting the resistance gear of a universal meter to two terminals of the microswitch respectively, the adjustment is more visual), then the operator respectively screws the screw rods 47 of the three adjustable contact switches to the right, the rear side ends of the screw rods 47 are in close contact with the front part of the movable rod 43, the movable rod 43 cannot move up and down along the guide hole 44, the position of the microswitch 42 is adjusted in place. The models of the photoresistors RL, RL1 and RL2 are MD 45; the resistances of the resistors R, R1 and R2 are 10K; model numbers of NPN triode Q, Q1 and Q2 are 9013; the relays J1, J2, J3, and J4 are DC4123 type mini relays of the song brand, and have an operating voltage of 12V. Relay J5 is a Songle brand 12V direct current relay having two power inputs, three control power inputs, three normally open contact ends, three normally closed contact ends.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the examples can also be combined appropriately to form other embodiments that can be understood by those skilled in the art.

Claims

1. An alarm device used for irradiation equipment comprises a voltage stabilizing circuit, a short message prompt module and a buzzer, and is characterized by also comprising an adjustable contact switch, a control circuit and a multi-path light-operated circuit; the multi-path light control circuit comprises a plurality of photoresistors, resistors, NPN triodes and relays, the plurality of photoresistors are respectively arranged on an insulating plate, the upper ends of the insulating plates are respectively and fixedly arranged in a plurality of grooves on the outer side of the lower part of an annular isolating plate at the lower end of the irradiation container body, the light receiving surfaces of the plurality of photoresistors face the lower end, and the height of the lower end is lower than that of the lower ends of the grooves; the multiple adjustable contact switches are respectively fixedly arranged on the outer side of the lower end of the irradiation container body at intervals, the voltage stabilizing circuit, the short message prompting module, the buzzer, the resistor, the relay and the NPN triode of the multi-path light control circuit are arranged in the element box; the power supply input end of the voltage stabilizing circuit is connected with an alternating current 220V power supply through a lead, the power supply output end of the voltage stabilizing circuit is connected with the power supply input ends of the first light-operated circuit and the control circuit through leads respectively, between every two light-operated circuits, the power supply output end of the previous light-operated circuit and the power supply input end of the adjacent light-operated circuit are connected through leads respectively, the power supply output end of the last light-operated circuit and the signal input end of the control circuit as well as one end of a plurality of serially-connected adjustable contact switches are connected through leads, the other end of the plurality of adjustable contact switches is connected with the signal input end of the control circuit through leads, the positive power supply output end of the control circuit is connected with the positive power supply input end of the audible alarm and the short message prompting module through leads, and the negative power supply output end of the voltage stabilizing circuit is connected with the negative power, the 380V alternating current power supply and three control power supply input ends of the control circuit are respectively connected through leads, and the alternating current control power supply output end of the control circuit and the power supply input end of the irradiation equipment body are respectively connected through leads.

2. The alarm device for irradiation equipment of claim 1, wherein the regulated power supply is an ac 220V to dc switching power supply module.

3. The alarm device for irradiation equipment of claim 1, wherein the negative power input terminal of the short message prompt module and the trigger signal input terminal are connected via circuit board wiring.

4. The alarm device of claim 1, wherein each adjustable contact switch comprises a housing, a normally open contact microswitch, and a movable rod, the middle of the upper end of the housing has a guide hole distributed from top to bottom, the upper end of the housing of the microswitch is fixedly mounted at the lower end of the movable rod, the upper portion of the movable rod is located in the guide hole, the middle of the front end of the housing has an opening with internal threads, a screw rod is screwed into the opening, and the action button of the microswitch is located outside the middle of the lower end of the housing.

5. An alarm device for use in irradiation equipment according to claim 1 wherein the control circuit comprises two relays connected via wiring on a circuit board, the negative power input terminals of the two relays are connected, and the normally closed contact terminal of the first relay is connected to the positive power input terminal of the second relay.

6. The warning device for irradiation equipment as claimed in claim 1, wherein in each of the light control circuits, one end of the photo-resistor is connected to the positive power input terminal of the relay and the control power input terminal via wires, the other end of the photo-resistor is connected to one end of the resistor via wires, the other end of the resistor is connected to the base of the NPN transistor via wires, and the collector of the NPN transistor is connected to the negative power input terminal of the relay via wires.