CN204461466U - The reliever of three combined test chambers - Google Patents
The reliever of three combined test chambers Download PDFInfo
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- CN204461466U CN204461466U CN201520092099.2U CN201520092099U CN204461466U CN 204461466 U CN204461466 U CN 204461466U CN 201520092099 U CN201520092099 U CN 201520092099U CN 204461466 U CN204461466 U CN 204461466U
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- decompression
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- decompression box
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Abstract
The utility model relates to a kind of reliever of three combined test chambers, comprise casing, box top wall is provided with the decompressing connection be communicated with cabinets cavity, box top wall is provided with decompression box, each drift angle place of decompression box is respectively equipped with a fixed support block, decompression box is fixed on box top wall by fixed support block, the roof of decompression box is provided with uncovered, one decompression air bag by air bag fixed head be fixedly connected on decompression box roof on and cover uncovered, the inner chamber of decompression air bag is by the uncovered inner space with decompression box, the diapire of decompression box is provided with connecting pipe, one end and the decompression box inner space of connecting pipe, the other end is fixedly connected in decompressing connection, be communicated with cabinets cavity.It can not only realize the object to casing decompression, ensure that gas can not be discharged into outside casing, and automatically can supplement pressure in casing, fluctuation can not be caused to the test index of casing, thus solve shaking table high-frequency in casing and vibrate the problem that casing internal gas pressure is impacted.
Description
Technical field
The utility model relates to a kind of three combined test chambers, particularly a kind of reliever of three combined test chambers.
Background technology
Three combined test chambers refer to the chamber for simulating temperature in the Nature, humidity and vibration coexisted environment, it primarily of have insulation effect casing and for providing the composition such as device and control element of temperature, damp condition in casing, also comprise for casing provides the shaking table of vibration condition, shaking table is independent equipment simultaneously.
Three combined test chambers, when doing temperature, humidity and vibration test, due to shaking table dither in casing, the volume in casing is also changed fast, and the pressure thereupon in casing also changes, and cabinets cavity itself is the container of a rigidity, when the pressure in casing uprises, very large burden will be caused, time serious to the chamber door of casing, chamber door can be flicked or be caused casing modification, and in casing, damp-heat air can be leaked to outside casing simultaneously; When in case during pressure step-down, not meeting the air that temperature and humidity requires will enter in casing, and then causes the test condition in casing that larger fluctuation occurs.At present, by the potential safety hazard flicked, following two kinds of modes are mainly contained for solving three combined test chambers chamber door when doing vibration test:
First kind of way is the intensity increasing casing and chamber door, although have certain protection effect like this, can increase cost greatly, generally can not adopt in this way;
The second way is pressure release, and as shown in Figure 3, it adopts structure to be arrange pressure relief device 8 on casing 1, by casing 1 inner chamber and air communication, like this when pressure in three combined test chambers raises, by pressure relief device, the gas in casing is discharged to outside casing, reaches pressure equilibrium; When in casing during hypotony, by pressure relief device, the gas (i.e. air) outside casing is sucked in casing, reach pressure equilibrium.Although adopt this structure can solve when three compbined test casings do temperature, humidity and vibration test because of stress problems that shaking table vibration produces, but its shortcoming is, pressure relief device due to this structure is the device of an open loop type, like this when producing high pressure in three compbined test box bodies, gases at high pressure are then directly discharged in air, now because the gas in casing is damp-heat air, just easily form ' white cigarette ' during Exhaust Gas, unsightly; When producing negative pressure in three compbined test box bodies, the air outside casing directly adds in casing, and due to the gas supplemented, its humidity and temperature all cannot meet the demands, and so just cause temperature in casing, moisture fluctuation, can cause test failure time serious.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of reliever of three combined test chambers is provided, it can not only realize the object to casing decompression, ensure that gas can not be discharged into outside casing, and automatically can supplement pressure in casing, to ensure the gas identity in casing, fluctuation can not be caused to the test index of casing, thus solve shaking table high-frequency in casing and vibrate the problem that casing internal gas pressure is impacted.
The purpose of this utility model is achieved in that a kind of reliever of three combined test chambers, comprise casing, the roof of casing is provided with the decompressing connection be communicated with cabinets cavity, the roof of described casing is provided with decompression box, each drift angle place of described decompression box is respectively equipped with a fixed support block, decompression box is fixed on the roof of casing by fixed support block, the roof of described decompression box is provided with uncovered, one decompression air bag by air bag fixed head be fixedly connected on decompression box roof on and cover uncovered, the inner chamber of this decompression air bag is by the uncovered inner space with decompression box, the diapire of described decompression box is provided with connecting pipe, one end and the decompression box inner space of described connecting pipe, the other end is fixedly connected in decompressing connection, be communicated with cabinets cavity.
Described decompression box is square, and this decompression box adopts stainless steel material to make.
The side of described fixed support block is provided with installation journal stirrup, and fixed support block is fixedly connected on box top wall by installing journal stirrup.
The cross section undulate of described decompression air bag, described air bag fixed head is the frame structure of middle part hollow out, and the edge of decompression air bag is fixedly connected on the roof of decompression box by air bag fixed head.
Described decompression air bag adopts silastic material to make.
Adopt technique scheme: the roof due to casing of the present utility model is provided with decompression box, each drift angle place of described decompression box is respectively equipped with a fixed support block, decompression box is fixed on the roof of casing by fixed support block, the roof of described decompression box is provided with uncovered, one decompression air bag by air bag fixed head be fixedly connected on decompression box roof on and cover uncovered, the inner chamber of this decompression air bag is by the uncovered inner space with decompression box, the diapire of decompression box is provided with connecting pipe, one end and the decompression box inner space of described connecting pipe, the other end is fixedly connected in decompressing connection, be communicated with cabinets cavity, like this when shaking table press-in casing, the pressure that casing internal cause shaking table is pressed into and increases, can enter in decompression air bag through decompression box by connecting pipe, decompression air bag is expanded, the pressure containment that now casing increases is reducing pressure in air bag, thus reach the object of decompression, avoid impacting chamber door, simultaneously owing to being airtight space between the inner chamber of the box that reduces pressure and the inner chamber of decompression air bag, make the gas in casing can not discharged to outside casing, also the phenomenon of ' white cigarette ' would not be formed outward at casing, when shaking table is to case extracorporeal movement, because tank pressure reduces, now the gas reduced pressure in air bag adds to again in casing, to ensure the gas identity in casing, fluctuation can not be caused to the test index of casing, thus solve shaking table high-frequency in casing and vibrate the problem that casing internal gas pressure is impacted.
Due to the cross section undulate of described decompression air bag, be convenient to hold and release gas.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the pressure relief device of existing three combined test chambers.
In accompanying drawing, 1 is casing, and 2 is decompressing connection, and 3 is decompression box, and 3a is uncovered, and 4 is fixed support block, and 4a is for installing journal stirrup, and 5 is decompression air bag, and 6 is air bag fixed head, and 7 is connecting pipe, and 8 is pressure relief device.
Embodiment
See Fig. 1 to Fig. 2, a kind of reliever of three combined test chambers, this device comprises casing 1, and the roof of casing 1 is provided with the decompressing connection 2 with casing 1 inner space, for passing in and out for gas in casing 1.The roof of described casing 1 is provided with decompression box 3, described decompression box 3 is square, and this decompression box 3 adopts stainless steel material to make, and the decompression box 3 of the present embodiment adopts corrosion resistant plate to process, and facilitates processing and fabricating, and has certain intensity.Each drift angle place of described decompression box 3 is respectively equipped with a fixed support block 4, decompression box 3 is fixed on by fixed support block 4 on the roof of casing 1, the side of described fixed support block 4 is provided with installs journal stirrup 4a, fixed support block 4 is fixedly connected on casing 1 roof by installing journal stirrup 4a, the fixed support block 4 of the present embodiment is welded and fixed with decompression box 3, certainly also connects by bolt; Installation journal stirrup 4a and casing 1 roof are bolted, convenient installation, dismounting and replacing.The roof of described decompression box 3 is provided with uncovered 3a, one decompression air bag 5 by air bag fixed head 6 be fixedly connected on decompression box 3 roof on and cover uncovered 3a, the inner chamber of this decompression air bag 5 is by the inner space of uncovered 3a with decompression box 3, described decompression air bag 5 adopts soft silastic material to make, the cross section undulate of decompression air bag 5, be convenient to hold and release gas, described air bag fixed head 6 is the frame structure of middle part hollow out, be convenient to compress decompression air bag 5, the edge of decompression air bag 5 is fixedly connected on by air bag fixed head 6 on the roof of decompression box 3, to ensure the sealing reduced pressure between air bag 5 and decompression box 3, make to form airtight space between the inner chamber of the inner chamber of decompression box 3 and decompression air bag 5.The diapire of described decompression box 3 is provided with connecting pipe 7, one end and decompression box 3 inner space of described connecting pipe 7, and the other end is fixedly connected in decompressing connection 2, with casing 1 inner space, gas in casing 1 is entered in decompression air bag 5.
The utility model is work like this:
When shaking table press-in casing, the pressure that casing internal cause shaking table is pressed into and increases, can enter in decompression air bag through decompression box by connecting pipe, decompression air bag is expanded, and the pressure containment that now casing increases is reducing pressure in air bag, thus reaches the object of decompression, avoid impacting chamber door, simultaneously owing to defining airtight space between the inner chamber of the box that reduces pressure and the inner chamber of decompression air bag, make the gas in casing discharged to outside casing, also can not would not form the phenomenon of ' white cigarette ' outward at casing; When shaking table is to case extracorporeal movement, because tank pressure reduces, now the gas reduced pressure in air bag adds to again in casing, to ensure the gas identity in casing, fluctuation can not be caused to the test index of casing, thus solve shaking table high-frequency in casing and vibrate the problem that casing internal gas pressure is impacted.
Above embodiment is only preferred embodiment be described the utility model; not scope of the present utility model is limited; under not departing from the utility model and relating to the prerequisite of spirit, the various distortion that those of ordinary skill in the art makes the technical solution of the utility model and improving all falls in the protection domain that claim of the present utility model determines.
Claims (5)
1. the reliever of a combined test chamber, comprise casing (1), the roof of casing (1) is provided with the decompressing connection (2) with casing (1) inner space, it is characterized in that: the roof of described casing (1) is provided with decompression box (3), each drift angle place of described decompression box (3) is respectively equipped with a fixed support block (4), decompression box (3) is fixed on the roof of casing (1) by fixed support block (4), the roof of described decompression box (3) is provided with uncovered (3a), one decompression air bag (5) by air bag fixed head (6) be fixedly connected on decompression box (3) roof on and cover uncovered (3a), the inner chamber of this decompression air bag (5) is by uncovered (3a) inner space with decompression box (3), the diapire of described decompression box (3) is provided with connecting pipe (7), one end and decompression box (3) inner space of described connecting pipe (7), the other end is fixedly connected in decompressing connection (2), with casing (1) inner space.
2. the reliever of three combined test chambers according to claim 1, is characterized in that: described decompression box (3) is for square, and this decompression box (3) adopts stainless steel material to make.
3. the reliever of three combined test chambers according to claim 1, it is characterized in that: the side of described fixed support block (4) is provided with installs journal stirrup (4a), fixed support block (4) is fixedly connected on casing (1) roof by installing journal stirrup (4a).
4. the reliever of three combined test chambers according to claim 1, it is characterized in that: the cross section undulate of described decompression air bag (5), the frame structure that described air bag fixed head (6) is middle part hollow out, the edge of decompression air bag (5) is fixedly connected on the roof of decompression box (3) by air bag fixed head (6).
5. the reliever of three combined test chambers according to claim 1 or 4, is characterized in that: described decompression air bag (5) adopts silastic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092099.2U CN204461466U (en) | 2015-02-10 | 2015-02-10 | The reliever of three combined test chambers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092099.2U CN204461466U (en) | 2015-02-10 | 2015-02-10 | The reliever of three combined test chambers |
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| Publication Number | Publication Date |
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| CN204461466U true CN204461466U (en) | 2015-07-08 |
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| CN201520092099.2U Active CN204461466U (en) | 2015-02-10 | 2015-02-10 | The reliever of three combined test chambers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303281A (en) * | 2018-04-16 | 2018-07-20 | 吉林大学 | Attaching/detaching apparatus applied to three combined test chambers |
| CN112556959A (en) * | 2020-12-10 | 2021-03-26 | 上海增达科技股份有限公司 | Large-scale shaking table environment case |
-
2015
- 2015-02-10 CN CN201520092099.2U patent/CN204461466U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303281A (en) * | 2018-04-16 | 2018-07-20 | 吉林大学 | Attaching/detaching apparatus applied to three combined test chambers |
| CN112556959A (en) * | 2020-12-10 | 2021-03-26 | 上海增达科技股份有限公司 | Large-scale shaking table environment case |
| CN112556959B (en) * | 2020-12-10 | 2021-08-03 | 上海增达科技股份有限公司 | Large-scale shaking table environment case |
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