CN114306970A - Air tightness self-checking type antichemical clothes with air tightness detection equipment - Google Patents
Air tightness self-checking type antichemical clothes with air tightness detection equipment Download PDFInfo
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- CN114306970A CN114306970A CN202210012105.3A CN202210012105A CN114306970A CN 114306970 A CN114306970 A CN 114306970A CN 202210012105 A CN202210012105 A CN 202210012105A CN 114306970 A CN114306970 A CN 114306970A
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Abstract
The invention discloses air tightness self-checking chemical protective clothing with air tightness detection equipment, and belongs to the technical field of chemical protective clothing detection. The invention comprises chemical protective clothing, an inflation valve and a detection assembly, wherein the inflation valve is arranged on the chemical protective clothing, the chemical protective clothing is also provided with a pressure measuring port, the detection assembly is connected with the chemical protective clothing through the inflation valve and the pressure measuring port, the inflation valve is used for controlling the pressure inside the chemical protective clothing, the detection assembly detects whether the chemical protective clothing leaks or not, in the invention, a zipper is divided into a section of mutually isolated space by using a sealing strip, when the leakage exists, leakage point gas is gathered between the sealing strips at two ends, so that the gas pressure between the sealing strips at two ends is increased, the gas rushes off the connection between a polar plate and a conductive electrode, so that an indicator light circuit is disconnected, the electrode connection part in the indicator light circuit is separated by using the leaked gas pressure, the leakage point is quickly positioned according to the position of the indicator light, the manual point-by-point inspection is avoided, and the function of self-checking of the gas tightness of the chemical protective clothing is realized.
Description
Technical Field
The invention relates to the technical field of chemical protective clothing detection, in particular to air tightness self-checking chemical protective clothing with air tightness detection equipment.
Background
The chemical protective clothing is a common protective tool, and can prevent external toxic and harmful substances from invading a human body when workers enter a polluted area or a dangerous area for operation.
The most common method is to use a pressure instrument to detect the air tightness of the chemical protective clothing, an air outlet on the chemical protective clothing is opened, whether the chemical protective clothing leaks or not is judged by observing the loss value of air pressure in the chemical protective clothing within a set time after the air is filled into the chemical protective clothing, and because the position of a measuring point is fixed, even if the chemical protective clothing leaks, the positions of the leakage points possibly exist need to be checked one by a worker, wherein the leakage is most easily caused at the zipper of the chemical protective clothing and the joint of the chemical protective clothing and a face screen, the leakage points are difficult to quickly determine, certain trouble is brought for subsequent remediation, and the use of a user is influenced.
Disclosure of Invention
The invention aims to provide air tightness self-checking chemical protective clothing with air tightness detection equipment, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a carry gas tightness self-checking type antichemical clothes of gas tightness check out test set, includes antichemical clothes, inflation valve, determine module, the inflation valve sets up on antichemical clothes, still be provided with the pressure measurement mouth on the antichemical clothes, determine module passes through inflation valve and pressure measurement mouth and is connected with antichemical clothes, the inflation valve is used for controlling the inside pressure of antichemical clothes, determine module detects the atmospheric pressure in the antichemical clothes.
Furthermore, the chemical defense suit comprises a jacket, an inflation valve and a pressure measuring port are arranged on the jacket, the detection assembly comprises an air bottle and an air gun, an inflation pipe is connected between the air bottle and the air gun, a magnetic suction flange is arranged at the air injection port of the air gun and is adsorbed with the inflation valve, and a rubber ring is arranged between the magnetic suction flange and the inflation valve;
the detection assembly further comprises a pressure difference meter, two pipeline connecting ports are arranged on the pressure difference meter, a pressure measuring pipe is connected onto one pipeline connecting port on the pressure difference meter, the other pipeline connecting port on the pressure difference meter is communicated with the atmosphere, one end of the pressure measuring pipe is connected with a magnetic suction flange, the magnetic suction flange on the pressure measuring pipe is adsorbed with a pressure measuring port, a rubber ring is arranged between the magnetic suction flange and the pressure measuring port, the magnetic suction flange on an air gun is adsorbed onto an inflation valve, the rubber ring is compressed between the magnetic suction flange and the inflation valve to play a sealing role, a plugging plug at the pressure measuring port is taken out, the magnetic suction flange on the pressure measuring pipe is adsorbed at the pressure measuring port, the rubber ring is compressed between the magnetic suction flange and the pressure measuring port to play a sealing role, a switch of the air bottle is opened, the air gun is used for inflating, and the air in the air bottle is introduced into the chemical defense suit from the inflation valve after passing through the inflation pipe, when the inflation pressure is reached, the inflation valve is closed, the differential pressure gauge starts timing, the pressure loss is calculated by comparing the atmospheric pressure with the inflation pressure in the chemical protective clothing, and whether the air tightness of the chemical protective clothing is qualified or not is judged.
Further, the inflation valve comprises a valve body, the valve body is arranged at the back of the jacket, the interior of the valve body is communicated, a ball valve core is arranged at the through part, the ball valve core blocks the through part, a rotating shaft is arranged on the ball valve core, the rotating shaft is rotatably arranged in the valve body, a gear is arranged at one end of the rotating shaft, a circular groove is formed in one surface, facing the interior of the chemical protective clothing, of the valve body, a piston is slidably arranged in the circular groove, a rack is connected to the piston, the rack is in meshing transmission with the gear, when the inflation pressure in the chemical protective clothing is detected, when the inflation pressure in the chemical protective clothing reaches a preset value, the piston is pushed by air pressure, the rack on the piston also moves, the rack pushes the gear to rotate, the gear drives the ball valve core to rotate through the rotating shaft, the through part of the valve body is blocked by the ball valve core, and the air in the air bottle cannot enter the chemical protective clothing, the inflation pressure of the chemical defense suit is controllable, overpressure use of the pressure difference meter is avoided, the service life of the pressure difference meter is prolonged, and the measurement precision of the pressure difference meter is improved.
Furthermore, a top plate is arranged at one end of the rack, which is far away from the piston, a top plate spring is arranged between the top plate and the valve body, a notch is formed in the rack, a limiting block is rotatably installed on the valve body, the spring is connected between the limiting block and the valve body, the limiting block is clamped with the notch, a rectangular sliding groove is formed in the limiting block, a connecting rod is slidably installed in the valve body, cylindrical shifting pins are arranged at two ends of the connecting rod, one cylindrical shifting pin is slidably installed in the rectangular sliding groove, in the process of carrying out air tightness detection on the chemical protective clothing by using a pressure difference meter, the pressure change in the chemical protective clothing needs to be continuously measured, when the inflation pressure of the chemical protective clothing reaches a preset value, the piston is pushed, the notch in the rack is clamped with the limiting block, the rack and the piston are locked, and when the internal pressure of the chemical protective clothing gradually drops, the piston does not move, the through position of the valve body is always kept to be blocked by the ball valve core, the inflation valve is automatically turned off after preset pressure is reached, air pressure inside the chemical protective clothing is reduced in the measuring process to realize self-locking, and the detection requirement is met.
Furthermore, one side of the valve body facing to the outside is provided with an unlocking groove, the other cylindrical shifting pin is positioned in the unlocking groove, a magnetic suction flange on the air gun is provided with an unlocking head which is matched with the unlocking groove, the unlocking head is provided with an arched sliding groove and a straight sliding groove, the communication part of the front end of the arched sliding groove and the straight sliding groove is provided with a spring plate, the cylindrical shifting pin slides in the arched sliding groove and the straight sliding groove, the magnetic suction flange on the air gun is adsorbed on the inflation valve, the unlocking head extends into the unlocking groove, the cylindrical shifting pin positioned in the unlocking groove is shifted into the straight sliding groove, along with the continuous extension of the unlocking head, the cylindrical shifting pin is jacked by the spring plate and slides into the arched sliding groove, the arched sliding groove utilizes the cylindrical shifting pin to lift the connecting rod, the lower end of the connecting rod utilizes the cylindrical shifting pin to lift the limiting block, the locking of the rack is released after the limiting block is lifted, and the pushing action of the top plate spring is exerted, roof spring promotes the roof and makes rack and piston reset, and the rack drives the gear rotation in the in-process of removing, and the gear drives the ball valve core rotation through the pivot, and the department of lining up on the valve body is opened once more to the ball valve core, alright afterwards with filling gas in toward antichemical clothes through utilizing the air gun and detecting, only utilize when aerifing the detection to separate the tapered end and replace the inflation valve, guarantee that the use inflation valve of antichemical clothes all keeps closing at every turn, improve the security that antichemical clothes used.
Further, the chemical protective clothing comprises gloves, trousers and galoshes, the upper garment, the gloves, the trousers and the galoshes are connected into a whole, the front portion of the upper garment is provided with a aestates, a zipper and a zipper head, the zipper head is used for opening and closing the zipper, and the aestates are used for closing the position of the zipper.
Further, a plurality of sections of hook locks are arranged on the edge of the aestates, elastic hooks are arranged at positions of the upper garment corresponding to the sections of the hook locks, the elastic hooks are matched with the hook locks, polar plates are arranged between the sections of the hook locks, conductive electrodes are arranged between the sections of the elastic hooks, each polar plate is contacted with each corresponding conductive electrode, a plurality of indicator lamps are further arranged on the aestates, each indicator lamp is connected with one polar plate and one conductive electrode circuit, the contact of the polar plates and the conductive electrodes controls the on-off of the indicator lamp circuit, a plurality of sealing strips are arranged at the contact positions of the aestates and the zippers, each sealing strip is positioned between two polar plates and is connected in a zipper connection mode so as to be easy to cause leakage, and the hook locks on the aestates are matched with the elastic hooks on the upper garment at the zippers so as to be closely connected between the aestates and the upper garment, the method has the advantages that certain air tightness is ensured, the zipper is divided into multiple sections of mutually isolated spaces by the sealing strips, the polar plate is in contact with the conductive electrode under the condition that the zipper is not leaked, all indicator light circuits are kept connected, the indicator light is kept to be lightened, leaked point gas is gathered between the sealing strips at two ends under the condition that the zipper is leaked, so that the air pressure between the sealing strips at two ends is increased, due to the fact that the hook lock is tightly in sealing connection with the elastic hook, after the air pressure is further increased, the contact position of the polar plate and the conductive electrode becomes a weak position for connection, the gas rushes off the connection of the polar plate and the conductive electrode, the indicator light circuits are disconnected, the indicator light is extinguished, the electrode connection position in the indicator light circuits is separated by means of the leaked gas pressure, the leaked point is quickly positioned according to the position where the indicator light is extinguished, and manual point-by-point troubleshooting is avoided.
Furthermore, the chemical protective clothing further comprises a face screen, the face screen is nested in a head cover of the coat, a circuit leakage detection assembly is arranged between the face screen and the head cover, the circuit leakage detection assembly comprises a plurality of sections of metal sheets and a plurality of sections of contact sheets, the metal sheets are arranged at the edge of the face screen in a surrounding manner, a plurality of sections of contact sheets are arranged on the head cover in a surrounding manner, each section of metal sheet is in contact connection with each section of contact sheet, an indicator lamp is arranged at the joint of the head cover and the face screen, each indicator lamp is in circuit connection with one metal sheet and one contact sheet, the contact of the metal sheets and the contact sheets controls the on-off of an indicator lamp circuit, the joint of the head cover and the face screen is a position where the chemical protective clothing is connected with other substances and leakage is easy to occur at another position, if leakage occurs between the head cover and the face screen, the leakage point gas can block the connection between the metal sheets and the contact sheets, the metal sheet and the contact sheet are disconnected, then the indicator light connected in the same circuit with the metal sheet is turned off, the connection between the metal sheet and the contact sheet is broken by utilizing the pressure of leaked gas, the indicator light is turned off, and the rapid troubleshooting of the leakage point is facilitated.
Compared with the prior art, the invention has the following beneficial effects:
1. the anti-chemical suit inflation valve has the advantages that the unlocking head is used for replacing the ball valve core during inflation detection, when the anti-chemical suit is inflated to reach set pressure, the piston is used for pushing the rack to drive the gear to rotate to close the ball valve core, meanwhile, the notch in the rack is clamped with the limiting block to lock the rack and the piston, the through position of the ball valve core is always kept to block the valve body, the inflation valve is automatically turned off after preset pressure is reached, air pressure inside the anti-chemical suit is reduced in the measurement process to achieve self-locking, detection requirements are met, controllable inflation pressure of the anti-chemical suit is achieved, overpressure use of the pressure difference meter is avoided, the service life of the pressure difference meter is prolonged, measurement accuracy of the pressure difference meter is improved, the unlocking head is used for replacing the inflation valve only during inflation detection, the inflation valve is guaranteed to be kept closed in the using process of the anti-chemical suit every time, and use safety of the anti-chemical suit is improved.
2. The pressure lock on the zipper is matched with the elastic hook on the jacket, so that the pressure lock is tightly connected with the jacket, certain air tightness is ensured, the zipper is divided into a plurality of sections of mutually isolated spaces by using the sealing strips, dew point leaking gas is gathered between the sealing strips at two ends under the condition that the zipper leaks, so that the air pressure between the sealing strips at two ends is increased, the sealing connection between the hook lock and the elastic hook is tight, the contact part of the polar plate and the conductive electrode becomes the weak part for connection, the polar plate and the conductive electrode are flushed by the gas, the indicating lamp circuit is disconnected, the indicating lamp is extinguished, the electrode connection part in an indicating lamp circuit is separated by using the leaked gas pressure, the dew point leaking position is quickly positioned to complement, manual checking is avoided, and the function of preventing chemical clothing air tightness is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the hermeticity test of the present invention;
FIG. 3 is a schematic view of the valve body structure of the present invention;
FIG. 4 is an enlarged view of a portion of the invention in the area B of FIG. 3;
FIG. 5 is a schematic view of the structure of the zipper part of the present invention;
FIG. 6 is a schematic view of the structure of the zipper part of the present invention;
FIG. 7 is a schematic circuit diagram of the indicator light of the present invention;
FIG. 8 is a schematic view of the attachment of the face screen to the coat according to the present invention;
in the figure: 1. a face screen; 2. a coat; 3. a glove; 4. trousers; 5. a boot; 6. the selected picture is pressed; 701. a zipper; 702. a slider of a zipper fastener; 8. a gas cylinder; 9. an inflation tube; 10. an air gun; 111. magnetically attracting the flange; 112. an unlocking head; 12. a rubber ring; 13. a valve body; 141. a ball valve core; 142. a rotating shaft; 143. a gear; 151. a piston; 152. a rack; 153. a top plate; 154. a roof spring; 16. a limiting block; 17. a connecting rod; 18. a differential pressure gauge; 19. a piezometric tube; 20. an elastic hook; 21. hooking and locking; 221. a polar plate; 222. a conductive electrode; 23. an indicator light; 24. a metal sheet; 25. and a contact sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: the utility model provides a carry gas tightness self-checking type antichemical clothes of gas tightness check out test set, including antichemical clothes, the inflation valve, determine module, the inflation valve sets up on antichemical clothes, still be provided with the pressure measurement mouth on the antichemical clothes, determine module passes through the inflation valve and the pressure measurement mouth is connected with antichemical clothes, antichemical clothes includes gloves 3, trousers 4, overshoes 5, jacket 2 and gloves 3, trousers 4, overshoes 5 connect into a whole, the front portion of jacket 2 is provided with presses the staffing 6, zip fastener 701, draw zipper head 702 and open and shut zip fastener 701, press the staffing 6 to seal the position of zip fastener 701.
An unlocking groove is formed in one side, facing the outside, of the valve body 13, the other cylindrical shifting pin is located in the unlocking groove, an unlocking head 112 is arranged on a magnetic suction flange 111 on the air gun 10, the unlocking head 112 is matched with the unlocking groove, an arched sliding groove and a straight sliding groove are formed in the unlocking head 112, a spring plate is arranged at the communication position of the front end of the arched sliding groove and the straight sliding groove, the cylindrical shifting pin slides in the arched sliding groove and the straight sliding groove, the magnetic suction flange 111 on the air gun 10 is adsorbed on the inflation valve, the unlocking head 112 extends into the unlocking groove, the cylindrical shifting pin located in the unlocking groove is shifted into the straight sliding groove, along with the continuous extension of the unlocking head 112, the cylindrical shifting pin is jacked by the spring plate and slides into the arched sliding groove, the arched sliding groove lifts the connecting rod 17 by the cylindrical shifting pin, the lower end of the connecting rod 17 lifts the limiting block 16 by the cylindrical shifting pin, after the limiting block 16 is lifted, the locking of the rack 152 is released, and the top plate spring 154 is pushed, the top plate spring 154 pushes the top plate 153 to reset the rack 152 and the piston 151, the rack 152 drives the gear 143 to rotate in the moving process, the gear 143 drives the ball valve core 141 to rotate through the rotating shaft 142, the ball valve core 141 opens the through position on the valve body 13 again, and then the detection can be carried out by utilizing the air gun 10 to charge air into the chemical defense suit.
The antichemical clothes comprises a jacket 2, an inflation valve and a pressure measuring port are arranged on the jacket 2, a detection assembly comprises an air bottle 8 and an air gun 10, an inflation pipe 9 is connected between the air bottle 8 and the air gun 10, a magnetic suction flange 111 is arranged at the air injection port of the air gun 10, the magnetic suction flange 111 and the inflation valve are adsorbed, a rubber ring 12 is arranged between the magnetic suction flange 111 and the inflation valve, the detection assembly also comprises a pressure difference meter 18, two pipeline connectors are arranged on the pressure difference meter 18, a pressure measuring pipe 19 is connected on one pipeline connector on the pressure difference meter 18, the other pipeline connector on the pressure difference meter 18 is communicated with the atmosphere, one end of the pressure measuring pipe 19 is connected with the magnetic suction flange 111, the magnetic suction flange 111 on the pressure measuring pipe 19 and the pressure measuring port are adsorbed, a rubber ring 12 is arranged between the magnetic suction flange 111 and the pressure measuring port, the magnetic suction flange 111 on the air gun 10 is adsorbed on the inflation valve, the rubber ring 12 is tightly pressed between the magnetic suction flange 111 and the inflation valve, play sealed effect, take out the shutoff stopper of pressure measurement mouth department, magnetism on the piezometric tube 19 is inhaled flange 111 and is adsorbed to pressure measurement mouth department, rubber circle 12 is inhaled flange 111 and is compressed tightly with the pressure measurement mouth play at magnetism, play the sealing effect, open the switch of gas cylinder 8, utilize air gun 10 to aerify, gas in the gas cylinder 8 passes through gas tube 9 back, let in the chemical protective clothing from the inflation valve again, the inflation valve is closed when inflation pressure reachs 1750Pa, the pressure differential table 18 begins the timing, calculate the pressure loss through comparing atmospheric pressure and the inside inflation pressure of chemical protective clothing after 6 minutes, if pressure loss is less than 300Pa, then judge that the gas tightness of chemical protective clothing is qualified.
A top plate 153 is arranged at one end of the rack 152 far away from the piston 151, a top plate spring 154 is arranged between the top plate 153 and the valve body 13, a notch is arranged on the rack 152, a limit block 16 is rotatably arranged on the valve body 13, a spring is connected between the limit block 16 and the valve body 13, the limit block 16 is clamped with the notch, a rectangular sliding groove is arranged on the limit block 16, a connecting rod 17 is slidably arranged in the valve body 13, two ends of the connecting rod 17 are respectively provided with a cylindrical poking pin which is slidably arranged in the rectangular sliding groove, in the process of carrying out air tightness detection on the chemical protective clothing by using a pressure difference meter 18, the pressure loss in the chemical protective clothing needs to be continuously measured, when the inflation pressure of the chemical protective clothing reaches a preset value, the piston 151 is pushed, the notch on the rack 152 is clamped with the limit block 16 to lock the rack 152 and the piston 151, when the internal pressure of the chemical protective clothing gradually drops, the piston 151 cannot move, the ball valve body 141 is always held to close the through portion of the valve body 13.
The inflation valve comprises a valve body 13, the valve body 13 is arranged at the back of the coat 2, the interior of the valve body 13 is communicated, a ball valve core 141 is arranged at the through part, the ball valve core 141 seals the through part, a rotating shaft 142 is arranged on the ball valve core 141, the rotating shaft 142 is rotatably arranged in the valve body 13, one end of the rotating shaft 142 is provided with a gear 143, one surface of the valve body 13 facing the inside of the chemical defense suit is provided with a circular groove, a piston 151 is arranged in the circular groove in a sliding way, a rack 152 is connected on the piston 151, the rack 152 is in meshing transmission with the gear 143, when the gas in the chemical protective clothing is detected, when the inflation pressure in the chemical protective clothing reaches a preset value, the piston 151 is pushed by the air pressure, the rack 152 on the piston 151 moves along with the piston, the rack 152 pushes the gear 143 to rotate, the gear 143 drives the ball valve core 141 to rotate through the rotating shaft 142, the ball valve core 141 seals the through position of the valve body 13, and the gas in the gas cylinder 8 cannot enter the chemical protective clothing.
The edge of the pressure device 6 is provided with a plurality of section hook locks 21, the upper garment 2 is provided with an elastic hook 20 corresponding to each section hook lock 21, the elastic hook 20 is matched with the hook lock 21, pole plates 221 are arranged between each section hook lock 21, conducting electrodes 222 are arranged between each section elastic hook 20, each pole plate 221 is contacted with each corresponding conducting electrode 222, a plurality of indicating lamps 23 are further arranged on the pressure device 6, each indicating lamp 23 is electrically connected with one pole plate 221 and one conducting electrode 222, the contact of the pole plates 221 and the conducting electrodes 222 controls the on-off of the circuits of the indicating lamps 23, a plurality of sealing strips are arranged at the contact positions of the pressure device 6 and the zipper 701, each sealing strip is positioned between the two pole plates 221, the connection is easy to leak by the connection mode of the zipper 701, the hook lock 21 on the pressure device 6 is matched with the elastic hook 20 on the upper garment 2 at the zipper 701, so that the pressure device 6 is tightly connected with the upper garment 2, ensuring certain air tightness, dividing the zipper 701 into a plurality of sections of mutually isolated spaces by using sealing strips, under the condition that no leakage exists at the zipper 701, enabling the pole plate 221 to be in contact with the conductive electrode 222, keeping the circuits of all the indicator lamps 23 connected, enabling the indicator lamps 23 to be lightened, under the condition that the leakage exists at the zipper 701, enabling leakage dew point gas to be gathered between the sealing strips at the two ends to cause the air pressure between the sealing strips at the two ends to be increased, because the sealing connection between the hook lock 21 and the elastic hook 20 is tighter, after the air pressure is further increased, the contact part between the pole plate 221 and the conductive electrode 222 becomes a weak part for connection, enabling the connection between the pole plate 221 and the conductive electrode 222 to be broken by gas flushing, enabling the circuit of the indicator lamps 23 to be turned off, enabling the electrode connection part in the circuit of the indicator lamps 23 to be separated by using the pressure of the leaked gas, quickly positioning the leakage dew point for complementing according to the turned-off position of the indicator lamps 23, avoiding manual point-by-point investigation.
The antichemical clothes also comprises a face screen 1, the face screen 1 is nested at the position of a head cover of the jacket 2, a circuit leakage detection assembly is arranged between the face screen 1 and the head cover, the circuit leakage detection assembly comprises a plurality of sections of metal sheets 24 and a plurality of sections of contact sheets 25, the plurality of sections of metal sheets 24 are arranged at the edge of the face screen 1 in a surrounding manner, a plurality of short contact sheets 25 are arranged on the head cover in a surrounding manner, each section of metal sheet 24 is in contact connection with each section of contact sheet 25, an indicator lamp 23 is arranged at the connection position of the head cover and the face screen 1, each indicator lamp 23 is in circuit connection with one metal sheet 24 and one contact sheet 25, the contact of the metal sheets 24 and the contact sheets 25 controls the on-off of the circuit of the indicator lamp 23, the position of the other position where the antichemical clothes is connected with other substances is at the connection position of the head cover and the face screen 1, if leakage occurs between the head cover and the face screen 1, the leakage gas can block the connection between the metal sheets 24 and the contact sheets 25, the indicator lamp 23 connected to the same circuit after the metal piece 24 and the contact piece 25 are disconnected is turned off, and the connection between the metal piece 24 and the contact piece 25 is broken by the pressure of the leaked gas, so that the indicator lamp 23 is turned off, and the rapid check of the leakage point is facilitated.
The working principle of the invention is as follows: the user takes out the chemical protective clothing and the detection assembly, the chemical protective clothing is flatly laid on the ground, the zipper 701 is pulled, the pressure selected door 6 is pressed, the magnetic flange 111 on the air gun 10 is adsorbed on the inflation valve, the unlocking head 112 extends into the unlocking groove, the cylindrical poking pin in the unlocking groove is poked into the straight sliding groove, the unlocking head 112 continues to extend, the cylindrical poking pin is jacked by the spring plate and slides into the arched sliding groove, the arched sliding groove utilizes the cylindrical poking pin to lift the connecting rod 17, the lower end of the connecting rod 17 utilizes the cylindrical poking pin to lift the limiting block 16, the limiting block 16 is lifted and then releases the locking of the rack 152, under the jacking action of the top plate spring 154, the top plate spring 154 pushes the top plate 153 to reset the rack 152 and the piston 151, the gear 143 drives the ball valve core 141 to rotate in the moving process of the rack 152, the gear 143 drives the ball valve core 141 to rotate through the rotating shaft 142, the ball valve core 141 opens the through position on the valve body 13, and opens the switch of the air bottle 8, inflating by using an air gun 10, wherein the gas in the gas bottle 8 is introduced into the chemical protective clothing from an inflation valve after passing through an inflation tube 9; when the inflation pressure reaches 1750Pa, the inflation valve is closed, the piston 151 is pushed, the notch in the rack 152 is clamped with the limiting block 16, the rack 152 and the piston 151 are locked, the differential pressure gauge 18 starts timing, the pressure loss is calculated by comparing the atmospheric pressure with the inflation pressure in the chemical protective suit after 6 minutes, and if the pressure loss is less than 300Pa, the air tightness of the chemical protective suit is judged to be qualified.
When no leakage exists at the position of the zipper 701, the polar plate 221 is in contact with the conductive electrode 222, all the indicating lamp 23 circuits are kept connected, the indicating lamp 23 is kept on, leakage point gas is gathered between sealing strips at two ends under the condition that the zipper 701 has leakage, so that the gas pressure between the sealing strips at two ends is increased, because the sealing connection between the hook lock 21 and the elastic hook 20 is tighter, after the gas pressure is further increased, the contact position of the polar plate 221 and the conductive electrode 222 becomes a weak position for connection, the gas breaks the connection between the polar plate 221 and the conductive electrode 222, so that the indicating lamp 23 circuits are disconnected, the indicating lamp 23 is extinguished, a user quickly positions the leakage point according to the position where the indicating lamp 23 is extinguished to complement, the connection position of the chemical protective clothing and other substances is a position where the leakage point is easy to occur at the connection position, and if the leakage occurs between the headgear and the face screen 1, the leakage point can block the connection between the metal sheets 24 and 25 through the gas, the indicator lamp 23 connected to the same circuit after the metal piece 24 and the contact piece 25 are disconnected is turned off, and the connection between the metal piece 24 and the contact piece 25 is broken by the pressure of the leaked gas, so that the indicator lamp 23 is turned off, and the rapid check of the leakage point is facilitated.
After all the tests are finished and the test results are not problematic, the user can wear the chemical protective clothing to perform the operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a carry gas tightness self-checking type antichemical clothes of gas tightness check out test set which characterized in that: including antichemical clothes, inflation valve, determine module, the inflation valve sets up on antichemical clothes, still be provided with the pressure measurement mouth on the antichemical clothes, determine module passes through the inflation valve and the pressure measurement mouth is connected with antichemical clothes, the inflation valve is used for controlling the inside pressure of antichemical clothes, determine module detects the atmospheric pressure in to antichemical clothes.
2. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 1, wherein: the chemical defense suit comprises a jacket (2), an inflation valve and a pressure measuring port are arranged on the jacket (2), the detection assembly comprises an air bottle (8) and an air gun (10), an inflation pipe (9) is connected between the air bottle (8) and the air gun (10), a magnetic suction flange (111) is arranged at the air injection port of the air gun (10), the magnetic suction flange (111) is adsorbed with the inflation valve, and a rubber ring (12) is arranged between the magnetic suction flange (111) and the inflation valve;
the detection assembly further comprises a pressure difference meter (18), wherein two pipeline connectors are arranged on the pressure difference meter (18), a pressure measuring pipe (19) is connected to one pipeline connector on the pressure difference meter (18), the other pipeline connector on the pressure difference meter (18) is communicated with the atmosphere, one end of the pressure measuring pipe (19) is connected with a magnetic suction flange (111), the magnetic suction flange (111) on the pressure measuring pipe (19) is adsorbed to the pressure measuring port, and a rubber ring (12) is arranged between the magnetic suction flange (111) and the pressure measuring port.
3. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 2, wherein: the inflation valve comprises a valve body (13), the valve body (13) is arranged at the back of the coat (2), the inside of the valve body (13) is communicated, a ball valve core (141) is arranged at the communication position, the communication position is blocked by the ball valve core (141), a rotating shaft (142) is arranged on the ball valve core (141), the rotating shaft (142) is rotatably arranged in the valve body (13), a gear (143) is arranged at one end of the rotating shaft (142), a circular groove is formed in one surface of the valve body (13) facing the inside of the chemical defense suit, a piston (151) is slidably arranged in the circular groove, a rack (152) is connected onto the piston (151), and the rack (152) is in meshing transmission with the gear (143).
4. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 3, wherein: the one end that piston (151) was kept away from in rack (152) is provided with roof (153), be provided with roof spring (154) between roof (153) and valve body (13), the breach has been seted up on rack (152), it installs stopper (16) to rotate on valve body (13), be connected with the spring between stopper (16) and valve body (13), stopper (16) carry out the block with the breach, have seted up the rectangle spout on stopper (16), slidable mounting has connecting rod (17) in valve body (13), the both ends of connecting rod (17) all are provided with the cylinder and dial the round pin, one the round pin slidable mounting is dialled to the cylinder in the rectangle spout.
5. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 4, wherein: the air gun is characterized in that one side, facing the outside, of the valve body (13) is provided with an unlocking groove, the other side of the valve body is located in the unlocking groove, the magnetic suction flange (111) on the air gun (10) is provided with an unlocking head (112), the unlocking head (112) is matched with the unlocking groove, the unlocking head (112) is provided with an arched sliding groove and a straight sliding groove, the communication position of the front end of the arched sliding groove and the straight sliding groove is provided with a spring plate, and the cylindrical shifting pin slides in the arched sliding groove and the straight sliding groove.
6. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 5, wherein: the chemical defense suit comprises gloves (3), trousers (4) and boots (5), the jacket (2), the gloves (3), the trousers (4) and the boots (5) are connected into a whole, the front part of the jacket (2) is provided with a pressure sash (6), a zipper (701) and a zipper puller (702), the zipper puller (702) opens and closes the zipper (701), and the pressure sash (6) closes the position of the zipper (701).
7. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 6, wherein: the edge of the pressure swing handle (6) is provided with a plurality of sections of hook locks (21), the position of the coat (2) corresponding to each section of hook lock (21) is provided with an elastic hook (20), the elastic hooks (20) are matched with the hook locks (21), polar plates (221) are arranged between every two sections of the hook locks (21), conductive electrodes (222) are arranged between every two sections of the elastic hooks (20), each polar plate (221) is contacted with each corresponding conductive electrode (222), the pressure device (6) is also provided with a plurality of indicator lamps (23), each indicator lamp (23) is electrically connected with one pole plate (221) and one conducting electrode (222), the contact between the polar plate (221) and the conductive electrode (222) controls the on-off of the circuit of the indicator lamp (23), the contact position of the pressure device (6) and the zipper (701) is provided with a plurality of sealing strips, and each sealing strip is positioned between two pole plates (221).
8. The airtightness self-inspection chemical protective clothing with the airtightness detection device according to claim 7, wherein: the chemical defense suit still includes face screen (1), face screen (1) nestification is in the headgear department of jacket (2), be provided with circuit leak hunting subassembly between face screen (1) and the headgear, circuit leak hunting subassembly includes a plurality of sections sheetmetal (24), a plurality of sections contact piece (25), a plurality of sections sheetmetal (24) encircle the edge that sets up in face screen (1), a plurality of weak points contact piece (25) encircle to set up on the headgear, every section sheetmetal (24) and every section contact piece (25) contact connection each other, the headgear is provided with pilot lamp (23) with the junction of face screen (1), every pilot lamp (23) all with a sheetmetal (24) and a contact piece (25) circuit connection, the break-make of contact control pilot lamp (23) circuit of sheetmetal (24) and contact piece (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210012105.3A CN114306970B (en) | 2022-01-07 | 2022-01-07 | Air tightness self-checking type antichemical clothes with air tightness detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210012105.3A CN114306970B (en) | 2022-01-07 | 2022-01-07 | Air tightness self-checking type antichemical clothes with air tightness detection equipment |
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| CN114306970A true CN114306970A (en) | 2022-04-12 |
| CN114306970B CN114306970B (en) | 2022-12-13 |
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| CN116659758A (en) * | 2023-08-02 | 2023-08-29 | 烟台盈德精密机械有限公司 | Air-tightness test platform for air-driven urea nozzle |
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| CN116659758B (en) * | 2023-08-02 | 2023-10-10 | 烟台盈德精密机械有限公司 | Air-tightness test platform for air-driven urea nozzle |
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|---|---|
| CN114306970B (en) | 2022-12-13 |
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