CN102901599A - Gas cylinder residual pressure warning device - Google Patents
Gas cylinder residual pressure warning device Download PDFInfo
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- CN102901599A CN102901599A CN201210228007XA CN201210228007A CN102901599A CN 102901599 A CN102901599 A CN 102901599A CN 201210228007X A CN201210228007X A CN 201210228007XA CN 201210228007 A CN201210228007 A CN 201210228007A CN 102901599 A CN102901599 A CN 102901599A
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Abstract
Disclosed is a gas cylinder residual pressure warning device. The gas cylinder residual pressure warning device comprises a base body and a circuit unit, the circuit unit comprises a first connecting end and at least two second connecting ends, the circuit unit is used for generating different signals when the first connecting end is electrically connected with different second connecting ends, the base body sequentially comprises a gas inlet chamber, an air pressure transmitting chamber and a contact electric conduction chamber along the axis direction of the base body, an air pressure transmission part is arranged in the air pressure transmitting chamber and used for converting the air pressure in the gas inlet chamber to displacement of the end portion of the air pressure transmission part which faces to the contact electric conduction chamber in the axis direction of the base body, the inner wall of the contact electric conduction chamber is insulated, at least two conducting layers which are distributed along the axis direction of the base body are covered on the inner wall of the contact electric conduction chamber, the conducting layers are electrically connected with the different second connecting ends in the circuit unit respectively, the end portion of the air pressure transmission part, which faces to the contact electric conduction chamber, is fixed with an electric conduction part, and the electric conduction part is connected with the first connecting end of the circuit unit and used for being in contact with different conducting layers according to the difference of displacement of the end portion of the air pressure transmission part along the axis direction of the base body. By means of the gas cylinder residual pressure warning device, the warning of multiple pressure sections is achieved.
Description
Technical field
The present invention relates to gas cylinder overbottom pressure detection technique field, relate in particular to a kind of gas cylinder excess pressure alarm device.
Background technology
Usually can carry diving apparatus during the operations such as the frogman surveys under water, salvages, repairing and Underwater Engineering, comprise in the described diving apparatus for frogman's underwater operation gas cylinder.
The frogman can constantly consume gas in the gas cylinder in the operation under water.The frogman need know described gas cylinder overbottom pressure, to guarantee the returning water surface before gas is used up, to prevent diving accident.
In the prior art, developed the gas cylinder excess pressure alarm device and be used for when the gas cylinder overbottom pressure is lower than predetermined threshold value, reporting to the police.In publication number is the Chinese patent of CN200987840Y, disclose a kind of gas cylinder excess pressure alarm device, with reference to figure 1, shown the synoptic diagram of gas cylinder excess pressure alarm device one embodiment in the described Chinese patent application.Described gas cylinder excess pressure alarm device comprises matrix 11, pressure breathing mouth 17 and air pressure transfer chamber 16 are arranged in the matrix 11, the air pressure transmission mechanism is installed in the air pressure transfer chamber 16, described air pressure transmission mechanism comprises nozzle 12, one end of air pressure transfer chamber 16 and pressure breathing mouth 17 and rain glass are connected, and the other end is connected with alarm whistle 15.When the force value of pressure breathing mouth 17 input pressure gas was lower than the alarm pressure value of setting, pressure gas was discharged through alarm whistle 15 via nozzle 2, sends loud birdie to report to the police.
But gas cylinder excess pressure alarm device shown in Figure 1 is not suitable for underwater operation, because under water in the environment, the birdie of alarm whistle 15 is submerged easily, is unfavorable in time making the frogman to know the information of gas cylinder overbottom pressure, and the diving safety problem occurs easily.
In order to address the above problem, in publication number is the Chinese patent of CN201823178U a kind of gas cylinder excess pressure alarm device is disclosed also.Described gas cylinder excess pressure alarm device comprises pneumatic switch, pressure transducer and display lamp, and when storage pressure was not enough, warning device sent caution sound when display lamp flashed signal.Except sounding, described gas cylinder excess pressure alarm device also sends alerting signal by light signal to the frogman, can guarantee the security that the frogman dives under water like this.
But above-mentioned gas cylinder excess pressure alarm device can only be realized the single-point warning, namely can only compare with the alarm pressure value of a setting, reports to the police when being lower than the alarm pressure value of described setting.Such gas cylinder excess pressure alarm device does not possess enough use dirigibilities, and usable range is also smaller.
Summary of the invention
The technical matters that the present invention solves provides a kind of gas cylinder excess pressure alarm device of realizing that multiple pressure power section is reported to the police.
In order to address the above problem, the invention provides a kind of gas cylinder excess pressure alarm device, comprising: the matrix of hollow type; Circuit unit comprises the first link and at least two the second links, and described circuit unit is used for forming different signals when the first link is electrically connected with different the second links; Described matrix comprises the inlet plenum that links to each other with gas cylinder, along the matrix axis direction also comprise successively the air pressure transfer chamber that links to each other with described inlet plenum, link to each other with described air pressure transfer chamber contact the conduction chamber; Described air pressure transmits the indoor air pressure transmission moving part that is provided with, and is used for the air pressure of inlet plenum is converted into the displacement at the matrix axis direction towards the end that contacts the conduction chamber of air pressure transmission moving part; The inwall insulation of described contact conduction chamber is coated with two conductive layers of arranging along the matrix axis direction on the described contact conduction chamber interior walls at least, described conductive layer respectively from circuit unit in different the second link be electrically connected; Described air pressure transmission moving part is fixed with electric-conductor towards the end of contact conduction chamber, described electric-conductor links to each other with the first link of described circuit unit, described electric-conductor contacts with different conductive layers in the difference of matrix axis direction displacement towards the end that contacts the conduction chamber based on the air pressure transmission moving part, to realize electrical connection.
Alternatively, described gas cylinder excess pressure alarm device also comprises the rain glass that is arranged on the matrix, and described rain glass all communicates near inlet plenum one side with described inlet plenum, air pressure transfer chamber, is used for measuring the gas cylinder overbottom pressure.
Alternatively, described air pressure transmission moving part comprises: slide block, comprise the first end that is arranged in the air pressure transfer chamber and be arranged in the second end that contacts the conduction chamber, wherein, the xsect of the xsect of described first end and described air pressure transfer chamber is complementary, described first end is used for sealing gas towards the face of inlet plenum, and described electric-conductor is arranged at described the second end; Elastomeric element, an end are fixed on the face of the reverse inlet plenum of slide block first end, and the other end is fixed on the inwall of the matrix between slide block first end and the contact conduction chamber.
Alternatively, described elastomeric element is pressure spring.
Alternatively, an end of described pressure spring is fixed on the slide block, the other end be fixed in the air pressure transfer chamber with contact the conduction position, boundary, chamber the matrix inwall on.
Alternatively, described contact conduction chamber is cubic type, and described contact conduction chamber comprises four inwalls, all is coated with a conductive layer on each inwall.
Alternatively, being covered in respectively four conductive layers on the inwall joins successively along the matrix axis direction.
Alternatively, described conductive layer is copper facing.
Alternatively, described electric-conductor comprises four electroconductive elastic sheets, respectively towards described four inwalls.
Alternatively, described signal is light signal, and described circuit unit comprises triggering frequency divider and warning lamp, and described the first link, the second link, warning lamp all couple with described triggering frequency divider; Described triggering frequency divider is used for forming the square-wave signal of different frequency when the first link is electrically connected with different the second links; Described warning lamp is used for receiving described square-wave signal, and glimmers based on the corresponding frequency of described square-wave signal.
Alternatively, described signal is light signal, described circuit unit comprises the warning lamp that triggers frequency divider and at least two different colours, described the first link, the second link and described triggering frequency divider couple, described warning lamp all couples with the first link, and the warning lamp of different colours couples from different the second link; Described triggering frequency divider is used for forming the square-wave signal of different frequency when the first link is electrically connected with different the second links; Described warning lamp is used for when the first link is electrically connected with the second link corresponding with it, based on the corresponding frequency of described square-wave signal, glimmer with its corresponding color.
Alternatively, described gas cylinder excess pressure alarm device also is provided with seal closure at the end that matrix does not connect gas cylinder.
Alternatively, described circuit unit is positioned at outside the seal closure, described conductive layer links to each other with described the first link by the first connecting line, described electric-conductor links to each other with described the second link by the second connecting line, be provided with through hole on the described seal closure, described the first connecting line passes described through hole with the second connecting line and links to each other with circuit unit, is provided with O-ring seal between described the first connecting line and the second connecting line and the through hole.
Compared with prior art, the present invention has the following advantages:
The air pressure transmission moving part can be converted to air pressure the displacement at the matrix axis direction towards the end that contacts the conduction chamber of air pressure transmission moving part, and electric-conductor can contact with different conductive layers in the difference of matrix axis direction displacement towards the end that contacts the conduction chamber based on the air pressure transmission moving part, because different conductive layers is continuous from the second different links respectively, and then can make the first link and different the second links realize being electrically connected, so that forming different signals, circuit unit reports to the police; Corresponding different gas cylinder overbottom pressure can adopt unlike signal to report to the police like this, has therefore realized the warning of multiple pressure power section, and then has enlarged the usable range of gas cylinder excess pressure alarm device.
Description of drawings
Fig. 1 is the synoptic diagram of prior art gas cylinder excess pressure alarm device one embodiment;
Fig. 2 is the synoptic diagram of gas cylinder excess pressure alarm device one embodiment of the present invention;
Fig. 3 is conductive layer distribution schematic diagram in the gas cylinder excess pressure alarm device shown in Figure 2;
Fig. 4 is the synoptic diagram of circuit unit one embodiment in the gas cylinder excess pressure alarm device shown in Figure 2;
Fig. 5 is the synoptic diagram of another embodiment of circuit unit in the gas cylinder excess pressure alarm device shown in Figure 2.
Embodiment
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar popularization in the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public implementation.
Secondly, the present invention utilizes synoptic diagram to be described in detail, and when the embodiment of the invention was described in detail in detail, for ease of explanation, described synoptic diagram was example, and it should not limit the scope of protection of the invention at this.
In order to solve the problem of prior art, the invention provides a kind of gas cylinder excess pressure alarm device, comprising: the matrix of hollow type; Circuit unit comprises the first link and at least two the second links, and described circuit unit is used for forming different signals when the first link is electrically connected with different the second links; Described matrix comprises the inlet plenum that links to each other with gas cylinder, along the matrix axis direction also comprise successively the air pressure transfer chamber that links to each other with described inlet plenum, link to each other with described air pressure transfer chamber contact the conduction chamber; Described air pressure transmits the indoor air pressure transmission moving part that is provided with, and is used for the air pressure of inlet plenum is converted into the displacement at the matrix axis direction towards the end that contacts the conduction chamber of air pressure transmission moving part; The inwall insulation of described contact conduction chamber is coated with two conductive layers of arranging along the matrix axis direction on the described contact conduction chamber interior walls at least, described conductive layer respectively from circuit unit in different the second link be electrically connected; Described air pressure transmission moving part is fixed with electric-conductor towards the end of contact conduction chamber, described electric-conductor links to each other with the first link of described circuit unit, described electric-conductor contacts with different conductive layers in the difference of matrix axis direction displacement towards the end that contacts the conduction chamber based on the air pressure transmission moving part, to realize electrical connection.
Among the present invention, the air pressure transmission moving part can be converted to air pressure the displacement at the matrix axis direction towards the end that contacts the conduction chamber of air pressure transmission moving part, and described electric-conductor can contact with different conductive layers in the difference of matrix axis direction displacement towards the end that contacts the conduction chamber based on the air pressure transmission moving part, because different conductive layers is continuous from the second different links respectively, and then can make the first link and different the second links realize being electrically connected, report to the police to form different signals.Corresponding different gas cylinder overbottom pressure, the present invention can adopt unlike signal to report to the police, so the present invention realized the warning of multiple pressure power section, can enlarge the usable range of gas cylinder excess pressure alarm device.
Below in conjunction with specific embodiment technical scheme of the present invention is described further.
With reference to figure 2, show the synoptic diagram of gas cylinder excess pressure alarm device one embodiment of the present invention.Described gas cylinder excess pressure alarm device comprises:
Matrix is positioned at the outer circuit unit 10 of matrix;
Matrix is hollow structure, and described matrix comprises inlet plenum I, the II of air pressure transfer chamber and contacts conduction chamber III along axis (dot-and-dash line among Fig. 2) direction.
Particularly, inlet plenum I is provided with air intake opening 2, and described air intake opening 2 is tightly connected with described gas cylinder gas outlet, thereby the air pressure in the air intake opening 2 is equated with the gas cylinder overbottom pressure.
Be provided with the air pressure transmission moving part among the II of air pressure transfer chamber, be used for air pressure with inlet plenum be converted into the air pressure transmission moving part towards the end of contact conduction chamber in the displacement of matrix axis direction.In the present embodiment, described air pressure transmission moving part comprises slide block 3 and elastomeric element 4, wherein,
Slide block 3 comprises the first end that is arranged in the II of air pressure transfer chamber and is arranged in the second end that contacts conduction chamber III that wherein, the xsect of the xsect of described first end and described air pressure transfer chamber is complementary, described first end towards the face of inlet plenum I for sealing gas.
In the present embodiment, slip for the ease of slide block 3, the described air pressure II of transfer chamber is circular perpendicular to the xsect of described axis, correspondingly, the first end of described slide block 3 also is circular perpendicular to the xsect of described axis, and the xsect of described slide block 3 equates with the size of the described air pressure II of transfer chamber, so that the first end of slide block 3 is realized the sealing to gas, the described air pressure II of transfer chamber is connected with described air intake opening 2 near a side of air intake opening 2, therefore the described air pressure II of transfer chamber is identical with the air pressure of described air intake opening 2 near a side of air intake opening 2, namely equates with described gas cylinder overbottom pressure.
Elastomeric element 4, one ends are fixed on the face of the reverse air intake opening 2 of slide block 3 first ends, and the other end is fixed on the inwall of the matrix between slide block 3 first ends and the contact conduction chamber III.
In the present embodiment, described elastomeric element 4 is pressure spring.Pressure spring is not fragile and aging, can improve the serviceable life of gas cylinder excess pressure alarm device of the present invention.
As shown in Figure 2, an end of described pressure spring is fixed on the slide block 3, the other end be fixed in the II of air pressure transfer chamber with contact the conduction position, III boundary, chamber the matrix inwall on.Thereby can be maximum utilize the II of air pressure transfer chamber size vertically, improve the compactedness of gas cylinder excess pressure alarm device of the present invention.
Air pressure transmission moving part in the present embodiment is converted into slide block 3 in the displacement of matrix axis direction with air pressure.Introduce its transforming principle below in conjunction with the course of work of air pressure transmission moving part.
When the II of air pressure transfer chamber was atmospheric pressure near the air pressure of a side of air intake opening 2 (referring to that specifically slide block 3 first ends are towards zone that face and the matrix inwall of inlet plenum I surrounds), pressure spring was in the nature elongation state; When slide block 3 first ends towards the face of inlet plenum I when zone that the matrix inwall surrounds links to each other with gas cylinder, because the gas cylinder overbottom pressure is usually greater than atmospheric pressure, slide block 3 first ends can be subject to the pressure that the gas cylinder overbottom pressure produces towards the face of inlet plenum I, thereby the side of slide block 3 along axis towards reverse inlet plenum I produced slides, this can make pressure spring be in compressive state, and then the face that is positioned at the reverse inlet plenum I of the slide block 3 first ends elastic force that spring produces because of deformation that can be under pressure.The elastic force opposite direction that the pressure that the gas cylinder overbottom pressure that slide block 3 is subject to produces and camber of spring produce, final described slide block 3 is when being subjected to described pressure and described elastic force to be in equilibrium state, and the elastic force that described pressure spring produces is identical with the pressure of described gas cylinder overbottom pressure generation.Because the elastic force of pressure spring is relevant with the deformation of pressure spring, therefore, the pressure that described gas cylinder overbottom pressure produces during equilibrium state is relevant with the deformation of pressure spring.
Because an end of pressure spring is fixed on the matrix inwall in the present embodiment, the other end is fixed on the slide block 3, and the direction of pressure spring deformation along base shaft to, therefore, the displacement that spring deformation produces is identical along the displacement that axis moves with slide block 3.
In the present embodiment, because slide block 3 is a rigid element, the second end that described slide block 3 is arranged in contact conduction chamber III is identical along the displacement that axis moves with slide block 3 along the displacement that axis moves.
Continuation is provided with electric-conductor 6 with reference to figure 2 on the second end of described slide block 3, and described electric-conductor 6 contacts with the inwall that contacts conduction chamber III.In the process that slide block 3 slides, described electric-conductor 6 slides along the inwall of axis direction at contact conduction chamber III.
In the present embodiment, described contact conduction chamber III is cubic type, described contact conduction chamber III comprises that four inwalls are (because Fig. 2 is planimetric map, can only illustrate two inwalls of contact conduction chamber III and paper perpendicular direction), described four inwalls are insulating material, all are coated with a conductive layer 5 that links to each other from the different second link (not shown) of circuit unit 10 on each inwall.
Correspondingly, in the present embodiment, described electric-conductor 6 comprises four electroconductive elastic sheets that all link to each other with the first link (not shown) of circuit unit 10, and described electroconductive elastic sheet contacts the inwall of conduction chamber III separately towards difference, and all contacts with corresponding inwall.
In conjunction with reference to figure 3, show the expansion synoptic diagram of four inwalls of contact conduction chamber III shown in Figure 2 and the synoptic diagram of slide block.As shown in Figure 3, being covered in four conductive layers 5 on the inwall staggers mutually along the matrix axis direction.The described direction of four conductive layers 5 on the inwall from the II of air pressure transfer chamber to contact conduction chamber III that be covered in is followed successively by the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81, and described the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81 are realized being electrically connected with circuit unit 10 corresponding the second links by the first connecting line 8D, 8C, 8B, 8A respectively.Particularly, described the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81 are copper facing, but the present invention does not limit the material of conductive layer 5.
Four electroconductive elastic sheets 61 of electric-conductor 6 are realized being electrically connected with the first link of circuit unit 10 by the second connecting line 8E.Described electric-conductor 6 along axis direction when the inwall of contact conduction chamber III slides, described electroconductive elastic sheet 61 contacts the inwall of conduction chamber III separately towards difference, corresponding to different displacements, described electroconductive elastic sheet contacts with the conductive layer 5 that is in diverse location, and then realizes the electrical connection of the first link and different the second links in the circuit unit 10.
Specifically, if the gas cylinder overbottom pressure is larger, the Displacement Ratio of initial position was not larger when slide block 3 connected gas cylinder relatively, electric-conductor 6 is in from the II of air pressure transfer chamber the 4th conductive layer 81 places farthest, contact with the 4th conductive layer 81 towards the electroconductive elastic sheet 61 of the 4th conductive layer 81 and to realize being electrically connected, and other three electroconductive elastic sheets 61 of electric-conductor 6 contact with the inwall of insulation when this position, because electroconductive elastic sheet 61 links to each other with the first link of circuit unit 10 by the second connecting line 8E, and the 4th conductive layer 81 links to each other with corresponding the second link in the circuit unit 10, thereby realize the conducting of the first link and the second link, circuit unit 10 can send first signal.Along with the consumption of frogman to gas, the gas cylinder overbottom pressure reduces gradually, the displacement of slide block 3 reduces gradually, electric-conductor 6 is in the position apart from the 3rd conductive layer 82 inferior far away of the II of air pressure transfer chamber, contact with the 3rd conductive layer 82 towards the electroconductive elastic sheet 61 of the 3rd conductive layer 82 and to realize being electrically connected, and other three electroconductive elastic sheets 61 of electric-conductor 6 contact with the inwall of insulation when this position, can realize like this conducting with the 3rd conductive layer 82 corresponding the second links and the first link, thereby make circuit unit 10 send secondary signal.Similarly, along with further reducing of gas cylinder overbottom pressure, electric-conductor 6 makes the second conductive layer 83, the first conductive layer 84 successively, and corresponding the second link and the first link make respectively circuit unit 10 send the 3rd signal, the 4th signal to connection respectively.
The frogman can know that based on different signals the scope of gas cylinder overbottom pressure, gas cylinder excess pressure alarm device of the present invention have realized that multiple pressure power section reports to the police.
Need to prove, can be in advance elasticity coefficient by pressure corresponding to gas cylinder overbottom pressure, elastomeric element can calculate respectively the displacement that the corresponding different pressures of elastomeric element produces, conductive layer corresponding to different pressures section be can design along the length of axis direction based on described displacement, thereby size and the arrangement on matrix inside of conductive layer in the gas cylinder excess pressure alarm device set gradually.
Continuation is with reference to figure 2, and described gas cylinder excess pressure alarm device also comprises the rain glass 12 that is arranged on the matrix, and described rain glass 12 communicates near inlet plenum I one side with described inlet plenum I and the II of air pressure transfer chamber, is used for measuring the gas cylinder overbottom pressure.Can know the concrete numerical value of gas cylinder overbottom pressure by described rain glass 12.
As shown in Figure 3, in the present embodiment, described the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81 join successively along the matrix axis direction.Be positioned at different matrix inwalls though that is to say the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81, but the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81 do not have the interval each other along axis direction, can take full advantage of so on the one hand contact conduction chamber III along the space of axis direction, the continuity between a plurality of pressure sections that can guarantee on the other hand can report to the police to the gas cylinder excess pressure alarm device.But the present invention does not limit this, along axis direction certain interval can also be arranged between described the first conductive layer 84, the second conductive layer 83, the 3rd conductive layer 82 and the 4th conductive layer 81.
In addition, embodiment illustrated in fig. 3 in, be provided with conductive layer 5 on each inwall of contact conduction chamber III, but the present invention does not limit this, in other embodiments, can also conductive layer 5 be set at the part inwall of contact conduction chamber III, and conductive layer 5 is not set on other inwalls.
Those skilled in the art can be according to the environment for use of gas cylinder excess pressure alarm device, the difference of pressure section is required described conductive layer 5 is designed.
For the frogman who carries out underwater operation, because the voice signal of warning usefulness is unfavorable for that at water transmission preferably, the signal that the circuit unit of described gas cylinder excess pressure alarm device sends is light signal.
In conjunction with reference to figure 4, show the schematic equivalent circuit of circuit unit one embodiment shown in Figure 2.Except the circuit diagram that circuit unit is shown, the equivalent electrical circuit that also shows electric-conductor and conductive layer is synoptic diagram among Fig. 4.Particularly, described circuit unit comprises:
Power Vcc is used for providing operating voltage to each device of circuit unit;
As shown in Figure 4, resistance R A, RB, RC, the RD of a plurality of parallel connections also are set between described the first terminal 91 and the second terminal 92, the first link of each resistance R A, RB, RC, RD links to each other with the first terminal 91 by the second connecting line 8E, and the second link of each resistance R A, RB, RC, RD couples from different the first connecting line 8A, 8B, 8C, 8D by a switch respectively.
Web member 6 consists of the switch 801,802,803,804 that couples mutually with described the first connecting line 8A, 8B, 8C, 8D with the 4th conductive layer 81, the 3rd conductive layer 82, the second conductive layer 83, the first conductive layer 84 respectively.
In the course of work of gas cylinder excess pressure alarm device of the present invention, when the gas cylinder overbottom pressure higher and when the electroconductive elastic sheet of web member 6 being contacted with the 4th conductive layer 81 realize being electrically connected, correspondingly, switch 801 is in conducting state, is communicated with the square-wave signal that makes triggering frequency divider 9 form first frequencies via resistance R A between the first terminal 91 and the second terminal 92; Along with the gas cylinder overbottom pressure reduces when the electroconductive elastic sheet of web member 6 contacts the realization electrical connection with the 3rd conductive layer 82, correspondingly, switch 802 is in conducting state, is communicated with the square-wave signal that makes triggering frequency divider 9 form second frequencies via resistance R B between the first terminal 91 and the second terminal 92; Along with further reducing of gas cylinder overbottom pressure, the electroconductive elastic sheet of web member 6 contacts with the second conductive layer 83 when realizing being electrically connected, correspondingly, switch 803 is in conducting state, is communicated with the square-wave signal that makes triggering frequency divider 9 form the 3rd frequency via resistance R C between the first terminal 91 and the second terminal 92; When the gas cylinder overbottom pressure is down to low-down state, the electroconductive elastic sheet of web member 6 contacts with the first conductive layer 84 when realizing being electrically connected, correspondingly, switch 804 is in conducting state, is communicated with the square-wave signal that makes triggering frequency divider 9 form the 4th frequency via resistance R D between the first terminal 91 and the second terminal 92.Described warning lamp 11 glimmers based on described first frequency, second frequency, the 3rd frequency or the 4th frequency, thereby can make the frogman know the residing pressure section of gas cylinder overbottom pressure.
Particularly, in the present embodiment, described relative size by design resistance R A, RB, RC, RD makes described first frequency less than second frequency, and second frequency less than the 3rd frequency, the 3rd frequency less than the 4th frequency, thereby make in the gas cylinder overbottom pressure hour, warning lamp 11 glimmers with higher frequency, to reach preferably alarming effect.
Need to prove that the present invention does not limit the relative size of first frequency, second frequency, the 3rd frequency, the 4th frequency, as long as described first frequency, second frequency, the 3rd frequency are different with the 4th frequency.
With reference to figure 5, show the schematic equivalent circuit of another embodiment of circuit unit shown in Figure 2.Present embodiment and something in common embodiment illustrated in fig. 4 repeat no more, present embodiment and difference embodiment illustrated in fig. 4 are, warning lamp 11 links to each other with the output terminal of described triggering frequency divider 9, can glimmer with corresponding frequency based on described square-wave signal.Trigger between the output terminal of frequency divider 9 and the ground end and be parallel with four warning lamp LED-A, LED-B, LED-C, LED-D that can send different colours light, and described four warning lamp LED-A, LED-B, LED-C, LED-D couple mutually with switch 801,802,803,804 respectively.When the electroconductive elastic sheet that makes web member 6 when the gas cylinder overbottom pressure like this and different conductive layers 5 contact and realize being electrically connected, corresponding switch conduction, can make on the one hand and trigger the square-wave signal that frequency divider 9 forms certain frequency, also can be communicated with simultaneously the warning lamp of respective color, thereby the warning lamp that can make respective color is with the corresponding frequency of square-wave signal, glimmering with its correspondence.For example: when the gas cylinder overbottom pressure is higher, glimmer with the low frequency green light signals, when the gas cylinder overbottom pressure is low, glimmer with the high frequency red signal.In embodiment illustrated in fig. 5, the gas cylinder excess pressure alarm device can make based on different air pressure the warning lamp of different colours glimmer based on different frequencies, thereby has improved alarming effect.
Need to prove that gas cylinder excess pressure alarm device of the present invention not only is suitable for underwater operation is reported to the police with gas cylinder, also is suitable for being applied to medical domain, and gas cylinder is reported to the police, the present invention does not limit field under the gas cylinder.
Be used for the situation that underwater operation is reported to the police with gas cylinder for the gas cylinder excess pressure alarm device, continuation is with reference to figure 2, in the gas cylinder excess pressure alarm device of the present invention, an end that does not connect gas cylinder at matrix also is provided with seal closure 7, described seal closure 7 can water proof, thereby prevents from occuring when carrying out underwater operation drainage.
Continuation is with reference to figure 2, described circuit unit 10 is positioned at outside the seal closure 7, described conductive layer 5 links to each other with circuit unit 10 first links by the first connecting line 8A, 8B, 8C, 8D, described electric-conductor 6 links to each other with circuit unit 10 second links by the second connecting line 8E, be provided with the through hole (not shown) on the described seal closure 7, described the first connecting line 8A, 8B, 8C, 8D pass described through hole with the second connecting line 8E and link to each other with circuit unit.
Preferably, in order to prevent leaking, be provided with the O-ring seal (not shown) between described the first connecting line 8A, 8B, 8C, 8D and the second connecting line 8E and the through hole.
Need to prove that also the present invention does not limit the kind of gas cylinder, gas cylinder can be oxygen gas cylinder, pressurized air gas cylinder, combination gas gas cylinder etc.Those skilled in the art can revise accordingly, replace and be out of shape the present invention according to above-described embodiment.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made possible change and modification; therefore; every content that does not break away from technical solution of the present invention; to any simple modification, equivalent variations and modification that above embodiment does, all belong to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (13)
1. a gas cylinder excess pressure alarm device is characterized in that, comprising:
The matrix of hollow type;
Circuit unit comprises the first link and at least two the second links, and described circuit unit is used for forming different signals when the first link is electrically connected with different the second links;
Described matrix comprises the inlet plenum that links to each other with gas cylinder, along the matrix axis direction also comprise successively the air pressure transfer chamber that links to each other with described inlet plenum, link to each other with described air pressure transfer chamber contact the conduction chamber;
Described air pressure transmits the indoor air pressure transmission moving part that is provided with, and is used for the air pressure of inlet plenum is converted into the displacement at the matrix axis direction towards the end that contacts the conduction chamber of air pressure transmission moving part;
The inwall insulation of described contact conduction chamber is coated with two conductive layers of arranging along the matrix axis direction on the described contact conduction chamber interior walls at least, described conductive layer respectively from circuit unit in different the second link be electrically connected;
Described air pressure transmission moving part is fixed with electric-conductor towards the end of contact conduction chamber, described electric-conductor links to each other with the first link of described circuit unit, described electric-conductor contacts with different conductive layers in the difference of matrix axis direction displacement towards the end that contacts the conduction chamber based on the air pressure transmission moving part, to realize electrical connection.
2. gas cylinder excess pressure alarm device as claimed in claim 1, it is characterized in that, described gas cylinder excess pressure alarm device also comprises the rain glass that is arranged on the matrix, and described rain glass all communicates near inlet plenum one side with described inlet plenum, air pressure transfer chamber, is used for measuring the gas cylinder overbottom pressure.
3. gas cylinder excess pressure alarm device as claimed in claim 1 is characterized in that, described air pressure transmission moving part comprises:
Slide block, comprise the first end that is arranged in the air pressure transfer chamber and be arranged in the second end that contacts the conduction chamber, wherein, the xsect of the xsect of described first end and described air pressure transfer chamber is complementary, described first end is used for sealing gas towards the face of inlet plenum, and described electric-conductor is arranged at described the second end;
Elastomeric element, an end are fixed on the face of the reverse inlet plenum of slide block first end, and the other end is fixed on the inwall of the matrix between slide block first end and the contact conduction chamber.
4. gas cylinder excess pressure alarm device as claimed in claim 3 is characterized in that, described elastomeric element is pressure spring.
5. gas cylinder excess pressure alarm device as claimed in claim 4 is characterized in that, an end of described pressure spring is fixed on the slide block, the other end be fixed in the air pressure transfer chamber with contact the conduction position, boundary, chamber the matrix inwall on.
6. gas cylinder excess pressure alarm device as claimed in claim 1 is characterized in that, described contact conduction chamber is cubic type, and described contact conduction chamber comprises four inwalls, all is coated with a conductive layer on each inwall.
7. gas cylinder excess pressure alarm device as claimed in claim 6 is characterized in that, is covered in respectively four conductive layers on the inwall and joins successively along the matrix axis direction.
8. such as claim 1,6 or 7 described gas cylinder excess pressure alarm devices, it is characterized in that described conductive layer is copper facing.
9. gas cylinder excess pressure alarm device as claimed in claim 6 is characterized in that, described electric-conductor comprises four electroconductive elastic sheets, respectively towards described four inwalls.
10. gas cylinder excess pressure alarm device as claimed in claim 1 is characterized in that, described signal is light signal, and described circuit unit comprises triggering frequency divider and warning lamp, and described the first link, the second link, warning lamp all couple with described triggering frequency divider;
Described triggering frequency divider is used for forming the square-wave signal of different frequency when the first link is electrically connected with different the second links;
Described warning lamp is used for receiving described square-wave signal, and glimmers based on the corresponding frequency of described square-wave signal.
11. gas cylinder excess pressure alarm device as claimed in claim 1, it is characterized in that, described signal is light signal, described circuit unit comprises the warning lamp that triggers frequency divider and at least two different colours, described the first link, the second link and described triggering frequency divider couple, described warning lamp all couples with the first link, and the warning lamp of different colours couples from different the second link;
Described triggering frequency divider is used for forming the square-wave signal of different frequency when the first link is electrically connected with different the second links;
Described warning lamp is used for when the first link is electrically connected with the second link corresponding with it, based on the corresponding frequency of described square-wave signal, glimmer with its corresponding color.
12. gas cylinder excess pressure alarm device as claimed in claim 1 is characterized in that, described gas cylinder excess pressure alarm device also is provided with seal closure at the end that matrix does not connect gas cylinder.
13. gas cylinder excess pressure alarm device as claimed in claim 12, it is characterized in that, described circuit unit is positioned at outside the seal closure, described conductive layer links to each other with described the first link by the first connecting line, described electric-conductor links to each other with described the second link by the second connecting line, be provided with through hole on the described seal closure, described the first connecting line passes described through hole with the second connecting line and links to each other with circuit unit, is provided with O-ring seal between described the first connecting line and the second connecting line and the through hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210228007.XA CN102901599B (en) | 2012-06-25 | 2012-06-25 | Gas cylinder residual pressure warning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210228007.XA CN102901599B (en) | 2012-06-25 | 2012-06-25 | Gas cylinder residual pressure warning device |
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| CN102901599A true CN102901599A (en) | 2013-01-30 |
| CN102901599B CN102901599B (en) | 2014-12-03 |
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| CN103353372A (en) * | 2013-07-05 | 2013-10-16 | 中国人民解放军海军医学研究所 | Adjustable breathing gas oxygen partial pressure segmentation alarm |
| CN105424270A (en) * | 2015-12-03 | 2016-03-23 | 山西汾西重工有限责任公司 | Underwater detector overpressure alarm device |
| CN106697230A (en) * | 2017-03-03 | 2017-05-24 | 佛山市丈量科技有限公司 | Smart diving clothing |
| CN110044536A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas-detecting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102901599B (en) | 2014-12-03 |
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