CN203705271U - Pressure resistance testing system of high-altitude protecting equipment - Google Patents
Pressure resistance testing system of high-altitude protecting equipment Download PDFInfo
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- CN203705271U CN203705271U CN201320891601.7U CN201320891601U CN203705271U CN 203705271 U CN203705271 U CN 203705271U CN 201320891601 U CN201320891601 U CN 201320891601U CN 203705271 U CN203705271 U CN 203705271U
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- isolating door
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Abstract
The utility model discloses a pressure resistance testing system of high-altitude protecting equipment. The pressure resistance testing system comprises a pressure storage container (1), a testing vessel (2), an isolating door (5) and a blasting depressurizing power device (6), wherein the pressure storage container (1) is used for providing pressure of predetermined height; the testing vessel (2) is used for containing the tested high-altitude protecting equipment, is in sealed connection with the pressure storage container and comprises an internal throat passage which is used for relieving pressure, and a blasting depressurizing diaphragm (4) which covers the end face of the whole throat passage is fixedly arranged in the internal throat passage; the isolating door (5) is arranged between the testing vessel and the pressure storage container and is used for isolating or communicating the pressure storage container and the testing vessel; the blasting depressurizing power device (6) comprises a striking needle (7) which is used for breaking through the blasting depressurizing diaphragm, so as to enable the internal pressure of the testing vessel to reach the pressure of predetermined height. The striking needle of the blasting depressurizing power device can instantly break through the blasting depressurizing diaphragm, so that the internal pressure of the testing vessel instantaneously reaches the pressure of predetermined height, and thus, the pressure resistance of the high-altitude protecting equipment in case of instantaneous loss of pressure can be excellently tested.
Description
Technical field
The utility model relates to voltage-withstand test technical field, particularly, relates to a kind of pressure-resistant test system of high altitude protective assembly.
Background technology
High altitude protective assembly; such as, oxygen regulator, oxygen supply equipment etc. in work high above the ground personnel dress high-altitude training clothes, oxygen mask, the helmet and work high above the ground cabin; while causing work high above the ground cabin rapid decompression in some extraneous factor; need to bear the compression shock of rapid decompression; prevent explosion; so that work high above the ground personnel are protected accordingly, thereby avoid operating personnel to be directly exposed under extraneous rugged environment.Therefore, these high-altitude safeguards, before formally coming into operation, need to carry out corresponding compression resistance test.
In order to realize this compression resistance test purpose, produced the hypobaric chamber analogue technique of simulating corresponding test environment.Along with the requirements at the higher level to high altitude protective assembly in reality, on the basis in pressure common cabin, develop rapid decompression chamber, be mainly used in research and the detection of protective gear under fast decompression environment.But this rapid decompression chamber technology also only can simulate 300 milliseconds～500 milliseconds explosive decompression experimental enviroments.
But according to reality, the applicant studies discovery, under certain altitude, because some extraneous factor causes the Working cabin Working cabin instantaneous loss of pressure that breaks down, its time often only has the time of tens milliseconds; In addition, there is imbalance in the volume ratio between the experimental cabin of simulation test and negative pressure deposit cabin, causes simulated environment and actual environment gap larger conventionally, thereby cause result and legitimate reading that test figure obtains to have larger error.Therefore, such rapid decompression chamber can not meet well people to high altitude protective assembly the fc-specific test FC demand under high altitude environment.
Utility model content
Problem to be solved in the utility model is that existing rapid decompression chamber its decompression time in the time of voltage-withstand test is longer, the technical matters of voltage endurance capability that can not fine test high altitude protective assembly, thereby provide one within the utmost point short time, to reduce pressure, to test out the pressure-resistant test system of high altitude protective assembly of voltage endurance capability of high altitude protective assembly.
To achieve these goals, the utility model provides a kind of pressure-resistant test system of high altitude protective assembly, comprising: pressure tank, for the pressure of predetermined altitude is provided; Test chamber, for holding tested high altitude protective assembly, itself and pressure tank are tightly connected, and comprise the interior venturi for pressure releasing, are fixedly installed the explosion decompression barrier film that covers its whole venturi end face in interior venturi; Isolating door, is arranged between test chamber and pressure tank, for cutting off or be communicated with pressure tank and test chamber; Explosion decompression propulsion system, comprise for crashing through explosion decompression barrier film, make pressure in test chamber reach the striker of predetermined altitude pressure.
The pressure-resistant test system of described high altitude protective assembly also comprises the principal pressure balance device for the space pressure pressure of the pressure tank of isolating door one side and isolating door opposite side and that explosion is reduced pressure between barrier film being carried out to balance.
Principal pressure balance device comprises: pipeline, extends in pressure tank; Two main solenoid valves, reduce pressure between barrier film and are connected with pipeline at isolating door and explosion; Adjustable plate, is arranged on the junction of pipeline and main solenoid valve, for the speed of adjustments of gas balance.
The quantity of isolating door is two, and space arranges; The pressure-resistant test system of described high altitude protective assembly also comprises secondary stress balance device, comprises tracheae, extends into two clearance spaces between isolating door; Secondary solenoid valve, reduces pressure between barrier film and is connected with tracheae at isolating door and explosion.
The pressure-resistant test system of described high altitude protective assembly also comprises the switching venturi between pressure tank and test chamber, and isolating door is arranged between pressure tank and switching venturi.
Explosion decompression propulsion system comprise the cylinder being connected with external air source by solenoid valve, and the front end of the piston rod of cylinder is provided with described striker.
The pressure-resistant test system of described high altitude protective assembly also comprises with isolating door power and being connected, the isolating door propulsion system of opening or closing to realize isolating door.
Isolating door propulsion system comprise: accumulator, can be connected with external air source and Pneumatic pressure power is converted into hydraulic power; Hydraulic cylinder, is connected with accumulator and isolating door, to drive isolating door to close or open under the hydraulic power of accumulator.
Isolating door propulsion system also comprise: stop valve, between accumulator and external air source; Gas solenoid valve, is positioned at the entrance pipe place of accumulator; Liquid solenoid valve, is positioned at the export pipeline place of accumulator; Throttling valve, uses between solenoid valve at accumulator and liquid.
On sidepiece on test chamber, be provided with the entrance that enters into interior venturi for explosion decompression barrier film.
The position of the seal of the close explosion decompression barrier film of interior venturi lower side is provided with the rail plate that slides into fixed installation position for explosion decompression barrier film.
Rail plate comprises the gathering sill consisting of web member interior plate and outer panel, and multiple roller being arranged on rotationally in gathering sill.
In entrance, have position corresponding with rail plate and for guiding explosion decompression barrier film to enter the guide frame of rail plate.
Entrance is the passage being connected with interior venturi, and passage seals by door is installed.
Described guide frame is two guide blocks corresponding with rail plate that are formed on top and the bottom in passage; Or be to extend to the rail plate passage and/or be formed on passage top and the guided plate corresponding with rail plate position from interior venturi.
Described fastener is included in explosion decompression barrier film and slides in the process of installation site, for guiding explosion decompression barrier film to be adjacent to the fixing briquetting device of seal, and slide into installation site and be close to after seal at explosion decompression barrier film, for compressing the hold down gag of explosion decompression barrier film.
Fixing briquetting device comprises mounting-fixing base, on mounting-fixing base, slide arrange and orientable guiding compact heap and for adjusting the regulating part of guiding compact heap position, guiding compact heap has the guiding surface of guiding explosion decompression barrier film towards seal motion.
Hold down gag comprises supporting seat, be arranged on bias piece on supporting seat rotationally, prevent bias piece reversion locating part, contact the pressure strip that also can move towards seal under the effect of bias piece with bias piece.
Technique scheme of the present utility model compared with prior art, has the following advantages:
The pressure-resistant test system of high altitude protective assembly of the present utility model, the test chamber that itself and pressure tank are tightly connected comprises the interior venturi for pressure releasing, and fixing seal is provided with the explosion decompression barrier film that covers its whole venturi end face in interior venturi, the striker of explosion decompression propulsion system can crash through explosion decompression barrier film, in the time of test, isolating door is closed, pressure in pressure tank is subscribed to the pressure of test height, then explosion decompression barrier film is installed in sealing, and high altitude protective assembly to be tested is contained in test chamber and by the hatch door sealing of test chamber, open subsequently hermatic door, now, explosion decompression barrier film is by the corresponding pressure bearing in pressure tank, subsequently, the striker of explosion decompression propulsion system can crash through explosion decompression barrier film moment, make pressure moment in test chamber reach the pressure of predetermined altitude, thereby can test out well the voltage endurance capability of high-altitude safeguard under instantaneous loss of pressure.
The pressure-resistant test system of high altitude protective assembly of the present utility model, its principal pressure balance device can by the pressure of the pressure tank of isolating door one side and isolating door opposite side and explosion decompression barrier film between the pressure in space carry out corresponding balance, thereby in the time that isolating door is opened, can effectively reduce the difference force that isolating door bears, be convenient to the unlatching of isolating door.
The pressure-resistant test system of high altitude protective assembly of the present utility model, on sidepiece on its test chamber, be provided with the entrance that enters interior venturi for explosion decompression barrier film, entrance seals by hermatic door, simultaneously, on the lower side of interior venturi, there is the rail plate that slides into installation site for explosion decompression barrier film, by this entrance and rail plate, can facilitate, the barrier film that rapidly explosion reduced pressure is set to its installation site, reduce staff's labour intensity, improve testing efficiency, and can prevent the damage of explosion decompression barrier film.
Accompanying drawing explanation
For the content that makes utility model is more easily expressly understood, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 represents the sectional structure schematic diagram of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
B portion enlarged drawing in Fig. 2 presentation graphs 1;
Fig. 3 represents the structural representation of the isolating door propulsion system of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Fig. 4 represents the structural representation of the principal pressure balance device of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Fig. 5 represents the structural representation of the secondary stress balance device of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Fig. 6 represents the structural representation of the explosion decompression propulsion system of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides
Fig. 7 represents the structural representation of the test chamber of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Fig. 8 represents the structural representation of the fixing briquetting device of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Fig. 9 represents the structural representation of the hold down gag of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides;
Figure 10 represents the structural representation of the rail plate of the pressure-resistant test system of the high altitude protective assembly that the utility model embodiment provides.
Description of reference numerals
1-pressure tank, 2-test chamber, venturi in 3-, 4-explosion decompression barrier film, 5-isolating door, 6-explosion decompression propulsion system, 7-striker, 8-principal pressure balance device, 9-pipeline, 10-main solenoid valve, 11-adjustable plate, 12-secondary stress balance device, 13-tracheae, 14-clearance space, the 15-venturi of transferring, the secondary solenoid valve of 16-, 17-gas solenoid valve, 18-liquid solenoid valve, 19-solenoid valve, 20-cylinder, 21-isolating door propulsion system, 22-accumulator, 23-hydraulic cylinder, 24-stop valve, 25-throttling valve, 26-entrance, 27-passage, 28-installs door, 29-flexible pipe, 30-pipeline passes through cabin joint, 32-interior plate, 33-outer panel, 34-web member, 35-gathering sill, 36-roller, 37-supporter, 38-flow-guiding mouth, 39-lining, 40-tommy, 50-seal, 51-teat, 52-fixes briquetting device, 53-guiding surface, 54-seal face, the 55-compact heap that leads, 56-fixture, 57-long shape hole, 58-holder, 59-regulating part, 60-hold down gag, 61-rotating shaft, 62-eccentric body, 63-self-return part, 64-pillar, 65-bolster, 66-pressure strip, 67-locating part, 68-supporting seat, 69-guide, 70-bias piece, 80-sliding rail, 151-fish plate.
Embodiment
The pressure-resistant test system of high altitude protective assembly the utility model embodiment being provided below in conjunction with accompanying drawing is elaborated.
As illustrated in fig. 1 and 2, the pressure-resistant test system of described high altitude protective assembly comprises pressure tank 1, test chamber 2, isolating door 5 and explosion decompression propulsion system 6, wherein,
Pressure tank 1 provides predetermined altitude for example apart from the infrabar pressure of ten thousand metres-20000, ground meter height for simulating, and is the vacuum tank of whole pressure-resistant test system;
Test chamber 2 is for holding tested height protective device, it is as the analog operation space of various detections or testing equipment use, test chamber 2 is tightly connected with pressure tank 1, and comprise the interior venturi 3 for pressure releasing being arranged in test chamber 2, in interior venturi 3, be fixedly installed the explosion decompression barrier film 4 of the whole venturi end face of venturi in covering;
Isolating door 5 is arranged between test chamber 2 and pressure tank 1, for cutting off or be communicated with pressure tank 1 and test chamber 2;
Explosion decompression propulsion system 6, comprise for crashing through explosion decompression barrier film 4, make pressure in test chamber 2 reach the striker 7 of predetermined altitude pressure.
In the time of test, isolating door is closed, by outside vacuum unit, pressure in pressure tank is subscribed to for example pressure of ten thousand metres-20000 meter height of test height, then explosion decompression barrier film is installed in sealing, and high altitude protective assembly to be tested is contained in test chamber and by the hatch door sealing of test chamber, open subsequently hermatic door, now, explosion decompression barrier film is by the corresponding pressure bearing in pressure tank, subsequently, the striker of explosion decompression propulsion system can crash through explosion decompression barrier film moment, make the pressure moment in test chamber, reach predetermined altitude pressure about 5ms-15ms greatly, for example, can within the time of 9ms, reach the pressure of 15000 meters of height, thereby can test out well the voltage endurance capability of high-altitude safeguard under instantaneous loss of pressure.
Pressure tank 1 generally includes pressure tank housing, is positioned at the hatch door of shell of tank sidepiece and steps on cabin stair, and is positioned at the multiple saddles of shell of tank bottom for support vessels housing.
Pressure tank housing is with reference to associated vacuum container handbook and standard, be usually designed to drum-shaped structure, outside bearing course adopts metal sheet processing and forming, indoor design " T " font reinforcement carries out axially, radially strengthens, for the processibility of proof strength and product, two ends are designed to the oval spherical crown end socket sealing of melon lobe formula, design rear pressure tank housing and can adopt finite element analysis software to carry out performance analysis, guaranteed reliability, stability, security and the economy of project organization.
Hatch door can adopt minute-pressure self-closing high strength rectangle shell door, it is the passage of realizing the turnover containers such as the inside and outside personnel of container and testing equipment, device, instrument and meter, hatch door is made up of parts such as door body, doorframe, sealing strip, door lock and hinge pages, and structure lightly has the self-closing and auto-lock function of low pressure.
Step on cabin stair for facilitating staff to enter pressure tank by hatch door, step on cabin stair and adopt shape and the processing of decorative pattern checkered plates.
Saddle supports relevant criterion with reference to pressure vessel and designs, and adopts the processing of sheet metal assembly welding, is pressure tank housings support and secure mounting arrangements.
In addition, test chamber 2 can be the rectangular pressure vessels of an interior pressure-bearing external reinforced, the analog operation space using for the high altitude protective assembly of various detections or test, for convenience of observation and the monitoring to various Test condition in personnel, various instrument, equipment turnover and test, testing process, correspondingly dispose view window, hatch door, hereinafter to describe in detail enter the entrance 26 of interior venturi and be fixed the fastener of the seal of interior venturi for barrier film that explosion is reduced pressure for explosion decompression barrier film.
The housing of test chamber 2 is main parts of test chamber 2, can adopt sheet metal moulding to be welded into rectangular box-shaped structure, and surface is strengthened with the gusset that sheet metal is welded with " T " font.In a kind of structure, when the static pressure of can bear-101KPa of the housing of test chamber and high-velocity detonation decompression, the Instantaneous Situation of 80KPa pressure impacts.
View window can be arranged on the dead ahead of test chamber 2, observes window seat and is fixedly connected with by Type of Welding with test chamber housing, and endoscopy glass fixedly mounts by screw by a metal platen, between endoscopy glass and observation window seat, sealing strip is installed and is sealed; Endoscopy glass can be selected the processing of high strength ultra-clear glasses, gets a clear view, and intensity is high, and safety coefficient reaches more than 10 times.Can clear understanding and the test detection case of observing each equipment by view window staff.
Hatch door can adopt fast-open type shell door, has the features such as quality is light, intensity is high, easy and simple to handle; Hatch door is arranged on doorframe by hinge page, between hatch door and doorframe, sealing strip is installed and is sealed, and when work, hatch door has minute-pressure function of self closing; Doorframe adopts sheet metal processing and forming, is weldingly fixed on the sidepiece of test chamber housing; On hatch door, can be provided with a circular view window, so that Test condition in when test multi-faceted observation container.
As shown in Fig. 2 and 7, interior venturi 3 can adopt the orthogonal frame of sheet metal processing and forming, be arranged in test chamber 2 by welding manner, the outside of interior venturi 3 can be directly and pressure tank 1 be tightly connected, or interior venturi 3 can be by switching venturi 15(described below as shown in Figure 1) come connection test container and pressure tank, pressure bleed passage when interior venturi 3 is explosion decompression test.
Explosion decompression barrier film 4 should guarantee that enough intensity is to bear the front pressure when existing between pressure tank and test chamber after isolating door unlatching of test, while guaranteeing again explosion decompression test, barrier film is under the impact of striker, should moment be broken into graininess, not affect pressure decompression time.Explosion decompression barrier film 4 can be the high-intensity tempered glass after special processing processing.
Explosion decompression propulsion system 6 are that 4 explosions of explosion decompression barrier film provide power during for test, realize the 4 moment fragmentation of explosion decompression barrier film, make the pressure moment in test chamber reach high-altitude infrabar pressure environment from home.
In addition, test chamber 2 also comprises that pipeline passes through cabin joint 30 and the electric cabin joint (not shown) of passing through, wherein, pipeline passes through cabin joint 30 can adopt 3 covers, it can be arranged on respectively on the sidewall of test chamber housing, switching venturi described below and pressure tank, the pipeline of the isolating door propulsion system 21 of describing for below and explosion decompression propulsion system 6 passes through cabin passage, realizes the transmission of power; Electric passing through on the sidewall that cabin is arranged on test chamber housing and pressure accumlator is cabin intraoral illumination, monitoring and other lab-size equipment electricity consumption and the signal interface channel while transmitting.For guaranteeing sealing and purposes, pressure terminal or sealed wiring post can be installed on the electric web joint that passes through cabin joint.
Further, as shown in figs. 1 and 4, the pressure-resistant test system of described high altitude protective assembly also comprise for by the pressure of the pressure tank 1 of isolating door 5 one sides and isolating door 5 opposite sides and explosion decompression barrier film 4 between the pressure in space carry out the principal pressure balance device 8 of balance, with in process of the test, isolating door is in the time of closed condition, the pressure differential that the space of balance isolating door both sides exists, thus the resistance that isolating door is opened reduced.
Fig. 4 has shown a kind of version of principal pressure balance device 8.As shown in the figure, principal pressure balance device 8 comprises pipeline 9, two main solenoid valves 10, adjustable plate 11, wherein
Pipeline 9 extends through fish plate 151 to enter in pressure tank, namely, principal pressure balance device 8 can be arranged on the joint of pressure tank and test chamber, now, this fish plate 151 is the sidewall of pressure tank or the sidewall of test chamber or the other fish plate for both joints; Or, also comprise at pressure-resistant test system of the present utility model under the situation of switching venturi 15 described below, the end-face wall that this fish plate 151 is switching venturi 15, specifically as shown in Figure 1, one end of switching venturi 15 extend in pressure tank, meanwhile, switching venturi 15 extend in the end-face wall of pressure tank has the pressure port sealing by hermatic door 5, and 9, pipeline is fixing above pressure port welds and pass end-face wall to extend in pressure tank;
Two 10 of main solenoid valves reduce pressure between barrier film 4 and are connected with pipeline 9 at isolating door 5 and explosion, the gas flow of two main solenoid valves 10 is contrary, and can communicate with the space that isolating door 5 and explosion are reduced pressure between barrier film 4, while use separately with assurance pressure tank and test chamber, can not leak because of valve member performance issue, meanwhile, pressure that also can balance isolating door both sides;
Adjustable plate 11 is arranged on the junction of pipeline 9 and close main solenoid valve 10, for the speed of adjustments of gas balance.
As shown in Figure 1, in order to guarantee sealing good between pressure tank and explosion decompression barrier film, the quantity of isolating door 5 is two, and space arranges, namely, between twice isolating door 5, be formed with clearance space 14, now, described high altitude protective assembly pressure-resistant test system is except comprising principal pressure balance device 8, also comprise secondary stress balance device 12, as shown in Figure 5, this secondary stress balance device 12 comprises tracheae 13 and secondary solenoid valve 16, wherein, tracheae 13 extends into two secondary solenoid valves 16 of the clearance space 14 isolating door from the space between isolating door 5 and explosion decompression barrier film 4 through the door body of isolating door 5 and reduces pressure between barrier film 4 and be connected with tracheae 13 at isolating door 5 and explosion, thereby for the pressure differential of the clearance space between balance test process twice isolating door and test chamber and the existence of pressure tank space, the resistance of opening further to reduce isolating door.
In addition, as shown in Figure 1, the switching venturi 15 that the pressure-resistant test system of described high altitude protective assembly of the present utility model also comprises between pressure tank 1 and test chamber 2 and is mutually tightly connected, isolating door 5 is arranged between pressure tank 1 and switching venturi 15, namely, one end of switching venturi 15 extend in pressure tank 1, and there is pressure port in this end-face wall, isolating door is for sealing this pressure port, with in the time that pressure tank or test chamber are tested separately and when long run test changes explosion decompression barrier film, cut off the communicating passage between two containers, reach energy-saving and emission-reduction, reduce the object of use cost.
Particularly, isolating door 5 comprises a body, this body is the main bearing member of isolating door 5, door body is arranged on by hinge page mount pad and hinge page on the doorframe of the switching venturi end-face wall between pressure tank and switching venturi, for guaranteeing enough intensity and alleviating a weight, door body adopts sheet metal processing, and structure is the framed structure with reinforcement.
Isolating door 5 can be by staff's manual unlocking.But in order to improve the efficiency of test and good sealing to be provided, preferably, as shown in figs. 1 and 3, the pressure-resistant test system of described high altitude protective assembly of the present utility model also comprises with isolating door 5 power and being connected, the isolating door propulsion system 21 of opening or closing to realize isolating door 5.
Fig. 3 has shown a kind of version of isolating door propulsion system 21, and particularly, isolating door propulsion system 21 comprise accumulator 22 and hydraulic cylinder 23, and wherein, accumulator 22 can be connected with external air source and Pneumatic pressure power is converted into hydraulic power; 23 of hydraulic cylinders are connected with accumulator and isolating door respectively, to drive isolating door to close or open under the hydraulic power of accumulator, now, on the door body of isolating door, are provided with the hydraulic cylinder Connection Block that can be connected with the piston rod of hydraulic cylinder 23.
Isolating door propulsion system 21 are used to isolating door in process of the test, to realize automatically opening or closing power are provided, it adopts pressure gas is power, by accumulator 22, Pneumatic pressure power is converted into hydraulic power, promotes the piston rod movement of hydraulic cylinder 23, realize the unlatching of isolating door or close.The isolating door propulsion system that arrange like this can solve the construction that independent employing hydraulic pressure is the cum rights such as hydraulic power unit of the bulky complex brought of power effectively, and the instant impact producing while adopting separately air pressure to be power easily makes the defect of a body damage etc.
In addition, between accumulator and hydraulic cylinder, be connected by the high voltage bearing flexible pipe 29 that passes through cabin joint 30 through pipeline, to open or close in process at isolating door, can there is certain angle and rotate in hydraulic cylinder, can continue to drive isolating door action
Further, isolating door propulsion system 21 also comprise: stop valve 24, between accumulator 22 and external air source, to break down in system and when abnormal occurrence, can cut off supply air line, maintains easily and overhaul; Solenoid valve 17 for gas, is positioned at the entrance pipe place of accumulator, to carry out corresponding air feed demand when the robotization control; Solenoid valve 18 for liquid, is positioned at the export pipeline place of accumulator, to carry out corresponding feed flow demand when the robotization control; Throttling valve 25, uses between solenoid valve, with the speed that regulates isolating door to open or close at accumulator and liquid.
In addition, be that under the situation of two, each isolating door is connected with hydraulic cylinder 23 at isolating door 5, accordingly, each hydraulic cylinder 23 is connected with accumulator 22, solenoid valve 17 for gas, solenoid valve 18, throttling valve 25 for liquid, concrete structure as shown in Figure 3.
In addition, as shown in Figure 6, explosion decompression propulsion system 6 comprise the cylinder 20 being connected with external air source by solenoid valve 19, and the front end of the piston rod of cylinder 20 is provided with described striker 7.
In order to realize the object of explosion decompression barrier film moment fragmentation, described explosion decompression propulsion system 6 adopt high-speed cylinder 20 for major impetus executive component, utilize pressurized air for power source; By the various combination mode of 4 solenoid valves 19 of automatic controlling system, the piston that changes pressure gas promotion high-speed cylinder 20 stretches out or regains by the requirement of setting, and crashes through decompression barrier film thereby promote striker 7; Described striker 7 adopts alloy structure steel making, and through test of many times finishing striker pin angle, to meet the functional requirement of high-speed breakage decompression barrier film.
In addition, can enter into interior venturi 3 for the ease of explosion decompression barrier film, preferably, as shown in Figure 7, on the sidepiece on test chamber 2, be provided with the entrance 26 that enters into interior venturi for explosion decompression barrier film.
Further, as shown in Figure 2, the position of the seal of the close explosion decompression barrier film of interior venturi 3 lower sides is provided with the rail plate 80 that slides into fixed installation position for explosion decompression barrier film 4, and in this fixed installation position, explosion decompression barrier film 4 will be close to seal 50; Meanwhile, the both sides of interior venturi 3, have respectively the explosion barrier film 4 that reduces pressure are close to the fixing fastener of seal 50.
Like this, staff can be by entrance and rail plate, and the barrier film that easily and quickly explosion reduced pressure is set to its installation site, thereby has reduced staff's labour intensity, improve testing efficiency, and can prevent the improper damage of explosion decompression barrier film or break.
Seal 50 can be the parts that adopt silicon rubber to make; it has minute-pressure function of self closing; after guaranteeing that explosion decompression barrier film is installed; between test chamber and pressure tank, can not leak; simultaneously in the installation process of explosion decompression barrier film; explosion decompression barrier film is played to buffer protection function, avoid explosion decompression barrier film directly contact with interior venturi generation rigidity and cause explosion decompression barrier film cracked.
Figure 10 has shown a kind of version of rail plate 80, particularly, as shown in figure 10, rail plate 80 comprises by the interior plate 32 near seal 50 and the gathering sill 35 consisting of web member 34 away from the outer panel 33 of seal 50, and multiple roller 36 being arranged on rotationally in gathering sill 35.
By the restriction of gathering sill 35, and the tumble action of roller 36, can reduce explosion decompression barrier film and move required power, to be facilitated and to be set to like a cork installation site, to be adjacent to seal.
Web member 34 can be mounting screw.
Further, in order to alleviate the pressure of explosion decompression barrier film pair roller 36, namely, in order to share the weight of explosion decompression barrier film, in gathering sill 35, be also provided with multiple limited support posts 37 concordant with roller 36.In addition, while rotation for fear of roller, outer panel in wearing and tearing, is provided with anti-wearing liner 39 in the junction of roller and both sides side plate, to improve the serviceable life of this rail plate.
In order to maintain easily, dismounting is provided with two tommys 40 between interior outer panel.
In addition, as shown in Figure 2, in order to make explosion decompression barrier film 4 can enter as early as possible all its installation sites, seal 50 is on its thickness direction, extend across the medial surface of interior plate 32 and partly extend towards gathering sill 35, making explosion reduce pressure barrier film can be before touching interior plate 32, can form and contact with seal 50, to arrive its installation site, namely, be arranged at seal 50 under the situation of the end face towards test chamber 2 of interior venturi 3, this rail plate 80 by screw be fixedly connected on interior venturi 3 in test chamber under, now, seal 50 extends across interior plate 32.
Extend across in a kind of structure of interior plate 32 at seal 50, as described in Figure 2, seal 50 is formed with the teat 51 extending in gathering sill 35, namely, in the nested end face that is arranged on interior venturi 3 of main body of seal 50, and teat 51 extend in gathering sill 35, and contact with explosion decompression barrier film 4.In like manner, this teat 51 all can reduce pressure with explosion in the circumferential direction of interior venturi, and barrier film 4 contacts and compacted sealing.
In addition, as shown in figure 10, the below of outer panel 33 is formed with the flow-guiding mouth 38 of being convenient to clear up explosion decompression barrier film fragment, to facilitate the fragment of the rear cleaning of test explosion decompression barrier film.
Successfully import in the rail plate 80 interior venturi from entrance 26 for the ease of explosion decompression barrier film 4, in entrance 26, have position corresponding with rail plate and for guiding the explosion barrier film that reduces pressure to enter the guide frame of rail plate.By this guide frame, explosion decompression barrier film 4 can be quick, enters into reposefully the sliding rail of interior venturi.
In addition, aforesaid entrance 26 can be the opening being molded directly within on interior venturi sidepiece, and seals by the hermatic door matching with this opening.
And in the another kind of version of entrance 26, as shown in Figure 7, entrance 26 is the passage 27 being connected with interior venturi 3, passage 27 seals by door 28 is installed.Passage 27 is connected and stretches out with interior venturi has length, it is fixed by welding on the housing of test chamber, door 28 is installed and is connected by hinge page with passage 27, and for example unblank soon and door locked or release are installed by lockset, install on door and be provided with door sealing circle.Like this, explosion decompression barrier film, after passage enters the installation site in interior venturi completely, is installed door and is closed, and locked by lockset, fitting completely in the outer face of door weather strip and passage, thereby realizes the sealing of passage, make interior venturi in sealing state, can't affect pressure test effect.
Passage 27 can be rectangular tube shape passage.
This guide frame can have several form described below, but it will be appreciated that, it is not limited to this.
A kind of form of described guide frame is to be formed on top and the bottom in passage to extend two corresponding guide blocks with position rail plate, like this, staff by explosion reduce pressure barrier film lift in passage and make its rely on guide block, then promote explosion decompression barrier film, explosion decompression barrier film, by under the guiding at upper and lower two guide blocks, can vertically and not be toppled over the rail plate that enters into interior venturi.
The another kind of form of described guide frame is to extend to the rail plate passage and/or be formed on passage top and the guided plate (not shown) corresponding with rail plate position from interior venturi.Namely, rail plate can extend to passage in interior venturi, enters thereby be convenient to explosion decompression barrier film; Or, on the top of passage and the position corresponding with rail plate be formed with the guided plate extending along the length direction of passage, by this guided plate, can effectively prevent that explosion decompression barrier film from toppling over; Or be, rail plate extends into passage, the top of passage also has guided plate simultaneously, and by both cooperations, explosion decompression barrier film can be quick, enters into reposefully interior venturi.
In addition, explosion decompression barrier film slips in the process of its installation site on rail plate, topple over away from seal in order to prevent explosion decompression barrier film, the position of the close seal of the upper side edge of interior venturi is provided with at explosion decompression barrier film and slides in the process of installation site, for the guide plate that prevents that explosion decompression barrier film from toppling over away from seal, the guide plate barrier film that explosion can be reduced pressure imports to its installation site, and prevents that explosion decompression barrier film from toppling over and damaging in progradation.
In a kind of version of guide plate, guide plate has the extension extending towards the center of interior venturi, make explosion decompression barrier film between this extension and seal, like this, this extension can prevent that explosion decompression barrier film from toppling over away from seal effectively, this extension matches with the rail plate of interior venturi below, can realize explosion decompression barrier film quick, and without damage be set to installation site.
Certainly, this guide plate can extend in passage, to form aforesaid guided plate.
When explosion decompression barrier film is set to behind its installation site, be i.e., after explosion decompression barrier film contacts with seal, need to compress explosion decompression barrier film by fastener, and it be carried out fastening fixing.Namely, as shown in Fig. 2,8 and 9, the fastener of the both sides of aforesaid interior venturi 3 is included in explosion decompression barrier film and slides in the process of installation site, for guiding explosion decompression barrier film to be adjacent to the fixing briquetting device 52 of seal, and slide into installation site and be close to after seal at explosion decompression barrier film, for compressing the hold down gag 60 of explosion decompression barrier film.
After explosion decompression barrier film slides and contact with fixing briquetting device on rail plate, fixing briquetting device can guide the explosion barrier film that reduces pressure to move towards seal in slip.
Fig. 8 has shown a kind of version of fixing briquetting device 52.Particularly, as shown in Figure 8, fixing briquetting device 52 comprises mounting-fixing base 58, guiding compact heap 55, and regulating part 59, wherein, guiding compact heap 55 is slidably arranged on mounting-fixing base 58, and sliding into after desired location and can locate, regulating part 59 is for adjusting the position of guiding compact heap 55, and guiding compact heap 55 has the guiding surface 53 that guiding explosion decompression barrier film 4 moves towards seal 50, like this, according to the thickness of explosion decompression barrier film, guiding compact heap 55 is adjusted to desired position, after explosion decompression barrier film contacts with guiding surface 53, to under the guiding function at guiding surface 53, move and contact with seal 50 towards seal 50, subsequently, by regulating part 59 make the to lead guiding surface 53 press seal parts of compact heap 55, simultaneously, guiding compact heap 55 is by stationary positioned, thereby realize the pre-tightening seal to explosion decompression barrier film at a side.
Further, in another kind is implemented, guiding compact heap 55 also has the seal face 54 for press seal part 50 being connected with guiding surface 53 arc-shaped transition, now, as shown in Figure 2, now, between seal face 54 and seal 50, there is gap, this gap allows explosion decompression barrier film to enter, explosion decompression barrier film 4 enters into gap under the guiding function of guiding surface 53, and on rail plate, continue to move to installation site to contact with seal 50, force seal face 54 to compress explosion decompression barrier film by adjusting regulating part 59, by the face contact of seal face 54, can avoid explosion decompression barrier film local pressure excessive and cause unnecessary damage, simultaneously, contact by face, can guarantee explosion decompression barrier film its side stressed evenly, make it seal and contact more equably with seal.
In addition, the slide construction of guiding compact heap 55 on mounting-fixing base 58 can be, as shown in Figure 6, on guiding compact heap 55, there is the long shape hole 57 that multiple length is extended, and by being connected with mounting-fixing base 58 through the fixture 56 of long shape hole 57, long shape hole 57 can slide with respect to fixture 56.
As shown in Figure 2, be arranged at seal 50 under the situation of end face of interior venturi 3, mounting-fixing base 58 can be positioned at the sidepiece of venturi 3 and be fixedly mounted on the inwall of test chamber by the mode of welding or the mode of screw installation, now, 54 of seal faces contact towards seal 50 and with seal.
Fixture 56 can be bolt, and it is through long shape hole 57 to coordinate with corresponding threaded hole on mounting-fixing base 58, and regulating part 59 can be set screw, to adjust the position of guiding compact heap 55 according to the thickness of explosion decompression barrier film.
Guiding compact heap 55 is for adopting nonmetallic materials to process the parts that make, or, on the guiding seal face 54 of compact heap 55 and/or guiding surface 53, be provided with cushion, when preventing from contact with explosion decompression barrier film, rigid collision occurs and cause the broken damage of explosion decompression barrier film.
In addition, this fixing briquetting device 52 can, according to explosion reduce pressure height dimension and the sealing property requirement of barrier film 4, can be provided with multiple, for example in one embodiment, interval is provided with the fixing briquetting device of three covers, certainly, the fixing briquetting device of two covers or quadruplet also can be set.
A kind of version of fixing briquetting device 12 has more than been described, but it will be appreciated that, it is not limited to this, as long as can realize, explosion decompression barrier film is guided, it is moved towards seal, and can carry out the function of pre-tightening seal to the explosion barrier film that reduces pressure.
Fig. 9 has shown a kind of version of hold down gag 60, as shown in the figure, hold down gag 60 comprises supporting seat 68, bias piece 70, locating part 67 and pressure strip 66, and wherein, bias piece 67 is arranged on supporting seat 68 rotationally, push pressure strip 66 to setover, 67 of locating parts coordinate with bias piece 67, and to prevent that bias piece 67 from rotating backward and return, pressure strip 66 contacts with bias piece 67, and can under the squeezing action of bias piece, move towards seal 50, to compress explosion decompression barrier film 4.
Further, as shown in Figure 7, hold down gag 13 also comprises the guide 69 that pressure strip 66 is led and the self-return part 63 that makes pressure strip 66 returns, like this, in the time that needs are removed the pressuring action to explosion decompression barrier film, make locating part 67 remove the restriction to bias piece 67, bias piece 67 returns, and pressure strip 66 the effect of self-return part 63 and under the effect of guide 69 self-return.
Further, as shown in Figure 9, supporting seat 68 is two and space layout, bias piece 67 is for having the rotating shaft 61 of multiple spaced apart eccentric bodies 62, between the locating part 67 arranging on one end of rotating shaft 61 and a supporting seat 68, it is toothed-wheel ratchet structure, the other end extension of rotating shaft 61 passes another supporting seat 68, and is configured as the polygonized structure that is easy to extraneous tool holding rotation, has the pillar 64 that contact corresponding to each eccentric body 62 coordinates on pressure strip 66.
Namely, bias piece 67 is the ratchet eccentric shaft structure that comprises rotating shaft 61 and eccentric body 62, and its eccentric stroke can reach 26mm, can meet the compression installation requirements of the explosion decompression barrier film after 8-16mm, and certainly, it is not limited to this.
One end of rotating shaft 61 is set to toothed-wheel ratchet structure between locating part 67, for example, in the time that forward compresses rotation, locating part 67 to ratchet excentric shaft without any inhibition, and when reverse rotation, 67 of locating parts automatically snap onto in hook tooth under the elastic reaction of self spring, thus the reverse rotation of restriction ratchet excentric shaft.Namely, as shown in Figure 7, locating part 67 is arranged on a supporting seat 68, it comprises square bayonet lock, ball handle and Compress Spring, square bayonet lock and ball handle are together by a threaded connection, Compress Spring is enclosed within on square bayonet lock, is compressed and is arranged on a supporting seat 68 by the cap nut of a tape guide.Ratchet torque-transmitting axle is rotated in the forward and compresses after explosion decompression barrier film, and the square bayonet lock of locating part 67 automatically snaps in torque-transmitting axle hook tooth under spring action, makes the ratchet torque-transmitting axle can not reverse rotation, to maintain the pretightning force that explosion decompression barrier film is applied; After off-test, grasp ball handle and be pulled outwardly, make square bayonet lock depart from torque-transmitting axle hook tooth, the homing under the effect of self-return part such as ratchet torque-transmitting axle, pressure strip.
In addition, between rotating shaft 61 and corresponding supporting seat, be provided with lining, in case spline axle wear damage supporting seat in rotary course, thereby increase serviceable life of this hold down gag.
The polygonized structure of the other end of rotating shaft 61 can be hexagonal structure, applies snap-in force with torque spanner easy to use.
The bottom surface of pressure strip 66, namely, is provided with bolster 65 on the face contacting with explosion decompression barrier film, with in the time that pressure strip contacts with explosion decompression barrier film, avoids making explosion decompression barrier film chipping because of rigidity contact.
Between eccentric body 62 and pillar 64 for cambered surface contacts.
As shown in Figure 2, be arranged on the structure of the end face of interior venturi 3 at seal 50, and entrance 26 is under the situation of passage 27, the installation portion on the sidewall of test chamber 2 with the supporting seat for hold down gag is installed of passage 27, each installation portion side is provided with the through hole passing for guide 69, and the breach contacting with pressure strip 66 for bias piece 67, particularly, supporting seat 68 is fixedly installed on the side towards test chamber of channel side wall, 66 of pressure strips be positioned at channel side wall towards seal 50, guide 69 passes sidewall to be connected with pressure strip 66 from a side of the seal dorsad 50 of channel side wall, self-return part 63 is between guide 69 and channel side wall and be sleeved on the spring on guide 69, when bias piece 67 pushes pressure strip, pressure strip will drive guide 69 to move towards explosion decompression barrier film 4 in through hole, simultaneously, due to the barrier effect of the sidewall of passage 27, to force the self-return part 63 of form of springs in compressive state, and when after bias piece 67 returns, because pressure strip 66 will lose extruding force, its by under the stretching, extension elastic force effect at spring away from seal 50, thereby realize the self-return of pressure strip 66.
Guide 69 can be for being connected in guide spiro rod on pressure strip, to guarantee that pressure strip compresses or away from explosion decompression barrier film along straight line in motion process.
A kind of version of more than having described hold down gag 13, in like manner, it will be appreciated that, it is not limited to this.
The course of work of the pressure-resistant test system of the high altitude protective assembly of a kind of embodiment is below described:
First, check that source of the gas and various parts reach after trystate, pass through automatic control system, click and control interface isolating door X button, the respective electrical magnet valve in isolating door propulsion system is opened, and source of the gas center provides Pneumatic pressure power by pipeline to system, Pneumatic pressure power is converted to hydraulic power through accumulator, and hydraulic power is passed to hydraulic cylinder by pipeline, and the piston rod of hydraulic cylinder stretches out, thus the isolating door slowly promoting is closed.
According to test demand, calculating the front pressure tank of test needs preset pressure altitude; The hatch door of closing presure tank and other and the extraneous passage communicating, by automatic control system, start vacuum unit, and pressure tank internal pressure is preset to required pressure altitude.
Check that explosion decompression barrier film installation environment meets after barrier film mounting condition, open the installation door on test chamber, be transported in test chamber by goalkeeper's explosion decompression barrier film is installed, and by corresponding fastener, the explosion barrier film that reduces pressure is in place; Close door is installed.
The high altitude protective assemblies such as the device detecting with need that needs experimental study, equipment, instrument and meter, aviation articles for use are fixedly installed in test chamber on request.
Close the hatch door of test chamber and other and the extraneous passage communicating, by automatic control system, start vacuum unit, test chamber internal pressure is preset to required pressure altitude before test.
By automatic control system, click and control releasing the button in interfacial pressure balance device hurdle, open the solenoid valve in the principal pressure balance device on bulkhead between pressure tank and switching venturi, make the pressure between pressure tank and switching venturi reach balance.Click and control releasing the button in interfacial pressure balance device hurdle, open the solenoid valve in the secondary stress balance device on isolating door, make space between two isolating doors reach balance with the pressure of transferring between venturi.
Pass through automatic control system, clicking control interface isolating door releases the button, respective electrical magnet valve in isolating door propulsion system is opened, source of the gas center provides Pneumatic pressure power by pipeline to device, Pneumatic pressure power is converted to hydraulic power through accumulator, and hydraulic power is passed to hydraulic cylinder by pipeline, and the piston rod of hydraulic cylinder shrinks, thereby pull isolating door to open, be communicated with pressure tank and switching venturi passage.
By automatic control system, click the X button of controlling in interfacial pressure balance device hurdle, the solenoid valve in the principal pressure balance device between closing presure tank and switching venturi on bulkhead; Click the X button of controlling in interfacial pressure balance device hurdle, close the solenoid valve in the secondary stress balance device on isolating door.
Check and confirm that each link reaches testing requirements, again check pressure tank and test chamber internal pressure Pass Test requirement, as do not meet, by automatic control system, start vacuum unit and make its pressure reach the required pressure of test.
Check test process acquisition instrument instrument reaches after duty and validation test safety, pass through automatic control system, clicking control interface explosion releases the button, open respective electrical magnet valve in explosion decompression power system, make source of the gas center provide power by pipeline to high-speed cylinder, high-speed cylinder piston rod is shot out, and promotes to be arranged on the striker shock explosion decompression barrier film of piston rod head.
Explosion decompression barrier film is under striker clashes into, and moment fragmentation, is communicated with pressure tank and test chamber by switching venturi, makes test chamber internal pressure moment drop to required pressure altitude.
By acquisition system, can check test container pressure change curve.
Pass through automatic control system, click and control interface isolating door X button, respective electrical magnet valve in isolating door propulsion system is opened, source of the gas center provides Pneumatic pressure power by pipeline to system, Pneumatic pressure power is converted to hydraulic power through accumulator, and hydraulic power is passed to hydraulic cylinder by pipeline, and the piston rod of hydraulic cylinder stretches out, thus the isolating door slowly promoting is closed.
By automatic control system, the pressure rise in test chamber and switching venturi is arrived to floor level.
Open the hatch door of test chamber, check each tested or by the intact degree of the high altitude protective assemblies such as checking device, equipment, instrument and meter, aviation articles for use.
Cleaning barrier film fragment, by above-mentioned steps, re-starts test next time or detects.
Obviously, above-described embodiment is only for example is clearly described, not the restriction to embodiment.Concerning those of ordinary skill in the field, also can make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And among the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (18)
1. a pressure-resistant test system for high altitude protective assembly, is characterized in that, comprises
Pressure tank (1), for providing the pressure of predetermined altitude;
Test chamber (2), for holding tested high altitude protective assembly, itself and pressure tank (1) are tightly connected, and comprise the interior venturi (3) for pressure releasing, are fixedly installed the explosion decompression barrier film (4) that covers its whole venturi end face in interior venturi (3);
Isolating door (5), is arranged between test chamber (2) and pressure tank (1), for cutting off or be communicated with pressure tank (1) and test chamber (2);
Explosion decompression propulsion system (6), comprise for crashing through explosion decompression barrier film (4), make the interior pressure of test chamber (2) reach the striker (7) of predetermined altitude pressure.
2. the pressure-resistant test system of high altitude protective assembly according to claim 1, it is characterized in that, also comprise the principal pressure balance device (8) for the space pressure pressure of the pressure tank (1) of isolating door (5) one sides and isolating door (5) opposite side and that explosion is reduced pressure between barrier film (4) being carried out to balance.
3. the pressure-resistant test system of high altitude protective assembly according to claim 2, is characterized in that, principal pressure balance device (8) comprises
Pipeline (9), extends in pressure tank;
Two main solenoid valves (10), are positioned between isolating door (5) and explosion decompression barrier film (4) and are connected with pipeline (9);
Adjustable plate (11), is arranged on the junction of pipeline (9) and main solenoid valve (10), for the speed of adjustments of gas balance.
4. according to the pressure-resistant test system of the high altitude protective assembly described in claim 2 or 3, it is characterized in that, the quantity of isolating door (5) is two, and space arranges;
The pressure-resistant test system of described high altitude protective assembly also comprises secondary stress balance device (12), comprises
Tracheae (13), extends into two clearance spaces (14) between isolating door;
Secondary solenoid valve (16), is positioned between isolating door (5) and explosion decompression barrier film (4) and is connected with tracheae (13).
5. according to the pressure-resistant test system of the high altitude protective assembly described in claim 1,2 or 3, it is characterized in that, also comprise the switching venturi (15) being positioned between pressure tank (1) and test chamber (2), isolating door (5) is arranged between pressure tank (1) and switching venturi (15).
6. the pressure-resistant test system of high altitude protective assembly according to claim 1, it is characterized in that, explosion decompression propulsion system (6) comprise the cylinder (20) being connected with external air source by solenoid valve (19), and the front end of the piston rod of cylinder (20) is provided with described striker (7).
7. the pressure-resistant test system of high altitude protective assembly according to claim 1, is characterized in that, also comprises with isolating door (5) power and being connected, the isolating door propulsion system (21) of opening or closing to realize isolating door (5).
8. the pressure-resistant test system of high altitude protective assembly according to claim 7, is characterized in that, isolating door propulsion system (21) comprising:
Accumulator (22), can be connected with external air source and Pneumatic pressure power is converted into hydraulic power;
Hydraulic cylinder (23), is connected with accumulator and isolating door, to drive isolating door to close or open under the hydraulic power of accumulator.
9. the pressure-resistant test system of high altitude protective assembly according to claim 8, is characterized in that, isolating door propulsion system also comprise:
Stop valve (24), is positioned between accumulator (22) and external air source;
Solenoid valve for gas (17), is positioned at the entrance pipe place of accumulator;
Solenoid valve for liquid (18), is positioned at the export pipeline place of accumulator;
Throttling valve (25), uses between solenoid valve at accumulator and liquid.
10. the pressure-resistant test system of high altitude protective assembly according to claim 1, is characterized in that, is provided with the entrance (26) that enters into interior venturi for explosion decompression barrier film on the sidepiece on test chamber (2).
The pressure-resistant test system of 11. high altitude protective assemblies according to claim 10, it is characterized in that, the position of the seal of the close explosion decompression barrier film of interior venturi (3) lower side is provided with the rail plate that slides into fixed installation position for explosion decompression barrier film;
The both sides of interior venturi (3), have respectively the explosion barrier film that reduces pressure are close to the fixing fastener of seal.
The pressure-resistant test system of 12. high altitude protective assemblies according to claim 11, it is characterized in that, rail plate comprises the gathering sill (35) consisting of web member (34) interior plate (32) and outer panel (33), and multiple roller (36) being arranged on rotationally in gathering sill (35).
The pressure-resistant test system of 13. high altitude protective assemblies according to claim 11, is characterized in that, in entrance (26), have position corresponding with rail plate and for guiding explosion decompression barrier film to enter the guide frame of rail plate.
14. according to the pressure-resistant test system of the high altitude protective assembly described in claim 10-13 any one, it is characterized in that, entrance (26) is the passage (27) being connected with interior venturi (3), and passage (27) seals by door (28) is installed.
The pressure-resistant test system of 15. high altitude protective assemblies according to claim 13, is characterized in that, described guide frame is for being formed on two guide blocks corresponding with rail plate of the interior top and the bottom of passage (27); Or be,
Extend to the rail plate passage (27) and/or be formed on passage (27) top the guided plate corresponding with rail plate position from interior venturi (3).
The pressure-resistant test system of 16. high altitude protective assemblies according to claim 11, it is characterized in that, described fastener is included in explosion decompression barrier film and slides in the process of installation site, for guiding explosion decompression barrier film to be adjacent to the fixing briquetting device (52) of seal, and slide into installation site and be close to after seal at explosion decompression barrier film, for compressing the hold down gag (60) of explosion decompression barrier film.
The pressure-resistant test system of 17. high altitude protective assemblies according to claim 16, it is characterized in that, fixing briquetting device (52) comprise mounting-fixing base (58), mounting-fixing base (58) upper slide arrange and orientable guiding compact heap (55) and for adjusting the regulating part (59) of guiding compact heap (55) position, guiding compact heap (55) has the guiding surface (53) of guiding explosion decompression barrier film towards seal motion.
18. according to the pressure-resistant test system of the high altitude protective assembly described in claim 16 or 17, it is characterized in that, hold down gag (60) comprises supporting seat (68), be arranged on bias piece (70) on supporting seat (68) rotationally, prevent bias piece reversion locating part (67), contact the pressure strip (66) that also can move towards seal under the effect of bias piece with bias piece (70).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891601.7U CN203705271U (en) | 2013-12-31 | 2013-12-31 | Pressure resistance testing system of high-altitude protecting equipment |
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| CN201320891601.7U CN203705271U (en) | 2013-12-31 | 2013-12-31 | Pressure resistance testing system of high-altitude protecting equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776699A (en) * | 2013-12-31 | 2014-05-07 | 中国人民解放军空军航空医学研究所 | Pressure resistance testing system for high-altitude protection equipment |
| CN107741356A (en) * | 2017-10-11 | 2018-02-27 | 河南理工大学 | The variable lower different scale break up coal rock pressure contracting carrying experimental provision of pretightning force effect |
-
2013
- 2013-12-31 CN CN201320891601.7U patent/CN203705271U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776699A (en) * | 2013-12-31 | 2014-05-07 | 中国人民解放军空军航空医学研究所 | Pressure resistance testing system for high-altitude protection equipment |
| CN103776699B (en) * | 2013-12-31 | 2016-06-29 | 中国人民解放军空军航空医学研究所 | The pressure-resistant test system of high altitude protective assembly |
| CN107741356A (en) * | 2017-10-11 | 2018-02-27 | 河南理工大学 | The variable lower different scale break up coal rock pressure contracting carrying experimental provision of pretightning force effect |
| CN107741356B (en) * | 2017-10-11 | 2019-10-25 | 河南理工大学 | Variable pretightning force acts on lower different scale break up coal rock pressure contracting carrying experimental provision |
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