CN216012661U - Multi-environment vibration test box sealed by expansion joint - Google Patents
Multi-environment vibration test box sealed by expansion joint Download PDFInfo
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- CN216012661U CN216012661U CN202122557745.6U CN202122557745U CN216012661U CN 216012661 U CN216012661 U CN 216012661U CN 202122557745 U CN202122557745 U CN 202122557745U CN 216012661 U CN216012661 U CN 216012661U
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Abstract
The utility model belongs to the technical field of environmental test equipment, in particular to a multi-environment vibration test box sealed by expansion joints, which comprises a test chamber and a vibration chamber, wherein the bottom of the test chamber is provided with a first opening, the vibration platform is arranged on the upper side of the vibration chamber, the vibration platform upwards runs through the vibration chamber and extends into the opening, the bottom of the test chamber is provided with a heat insulation expansion joint, the heat insulation expansion joint is sleeved outside the first opening, the lower end of the heat insulation expansion joint is fixedly connected with the vibration chamber, and an air pressure communicating structure is arranged between the test chamber and the vibration chamber; the utility model discloses make vibration cavity and experimental cavity seal as a whole through thermal-insulated expansion joint to make vibration platform no longer receive the influence because of pressure differential, make the test piece can normally carry out the vibration test under the low pressure environment.
Description
Technical Field
The utility model belongs to the technical field of environmental test equipment, concretely relates to utilize sealed multi-environment vibration test case of expansion joint.
Background
At present, a three-comprehensive test box for simultaneously simulating high and low temperature, humidity and vibration is generally composed of a test chamber and a vibrator, a vibration platform is inserted into the test chamber to vibrate up and down, and different environments are simulated by a heater, an evaporator, a humidifier and the like in the test chamber, so that a comprehensive test of high and low temperature, humidity and vibration is performed, however, if a test piece needs to be subjected to a vibration test in a low-pressure environment, other equipment is often used for performing the test alone, because the pressure at one end of the vibration platform inserted into the test chamber is low and the normal atmospheric pressure is at the other end under the low-pressure environment, the pressures borne by the upper end and the lower end of the vibration platform are inconsistent, a pressure difference exists, and the vibration test of the vibration platform is easily influenced due to the pressure difference, so we propose a multi-environment vibration test box sealed by using expansion joints, make vibration chamber and experimental chamber seal and be a whole to make vibration platform no longer receive the influence because of pressure differential, make the test piece can normally carry out the vibration test under the low pressure environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the multi-environment vibration test box is sealed by the expansion joint, so that the vibration chamber and the test chamber are sealed into a whole through the heat insulation expansion joint, the vibration platform is not influenced by pressure difference any more, and a test piece can normally perform a vibration test in a low-pressure environment.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
the utility model provides an utilize sealed multi-environment vibration test box of expansion joint, includes experimental cavity and vibration cavity, experimental cavity bottom is equipped with first opening, vibration platform is installed to vibration cavity upside, vibration platform up runs through the vibration cavity stretches into in the opening, thermal-insulated expansion joint is installed to experimental cavity bottom, thermal-insulated expansion joint cover is located the first opening outside, thermal-insulated expansion joint lower extreme with vibration cavity fixed connection, experimental cavity with be equipped with atmospheric pressure connectivity structure between the vibration cavity.
And the upper side and the lower side of the heat insulation expansion joint are fixedly provided with mounting ring plates, and the mounting ring plates on the upper side and the lower side are fixed with the bottom of the test chamber and the vibration chamber through bolts.
Through the installation ring plates on the upper side and the lower side, the installation structure between the heat insulation expansion joint and the bottom of the test chamber and between the heat insulation expansion joint and the vibration chamber is simple, and the assembly and disassembly are convenient.
And the mounting ring plates on the upper side and the lower side are also provided with sealing gaskets.
The sealing washer can further make the installation ring plate and the bottom of the test chamber and the installation ring plate and the vibration chamber tightly sealed, and the sealing performance is ensured.
The upper side of the vibration chamber can be of an opening structure, the air pressure communication structure is a second opening arranged on the upper side of the vibration chamber, and a communication gap is formed between the second opening and the vibration platform.
The opening on the upper side of the vibration chamber is communicated with the vibration platform through a communicating gap formed between the second opening, so that the vibration chamber and the test chamber jointly form a communicated whole under the connection of the heat insulation expansion joint, and the pressure in the test chamber, the heat insulation expansion joint and the vibration chamber can be kept consistent when the low-pressure environment is simulated for vacuumizing.
The utility model discloses a vibration cavity, including vibration cavity, atmospheric pressure intercommunication structure, vibration cavity, second elastic sealing ring, vibration platform, vibration cavity upside also can be the enclosed construction, atmospheric pressure intercommunication structure for set up in the logical groove of vibration cavity, respectively set up in the vibration cavity with the atmospheric pressure balance hole of experimental cavity, the lateral wall that leads to the groove is installed the second elastic sealing ring, vibration platform with lead to the groove and seal through second elastic sealing ring, two be connected with the heat-insulating tube jointly between the atmospheric pressure balance hole.
Seal through vibration cavity upside, under the sealed of second elastic sealing ring, make vibration platform obtain sealedly all the time at the in-process that leads to groove vibration, and connect thermal-insulated pipe between two atmospheric pressure balance holes, can be linked together experimental cavity and vibration cavity as a whole, through thermal-insulated pipe with experimental cavity, leather thermal expansion festival and vibration cavity intercommunication are a whole, when simulation low pressure environment evacuation, experimental cavity, thermal-insulated expansion festival and vibration cavity's atmospheric pressure can keep unanimous, and thermal-insulated pipe can avoid simultaneously and external atmosphere between the heat transfer.
The utility model discloses a thermal-insulated expansion joint can make experimental cavity, thermal-insulated expansion joint and vibration cavity communicate each other and form a whole, when simulation low pressure environment evacuation, can make experimental cavity, thermal-insulated expansion joint and vibration cavity's inner space pressure keep unanimous, makes vibration platform no longer receive the influence because of the pressure differential, makes the test piece can normally carry out the vibration test under the low pressure environment.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a first schematic structural diagram of an embodiment of a multi-environment vibration test chamber sealed by expansion joints according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural diagram II of an embodiment of a multi-environment vibration test chamber sealed by expansion joints according to the present invention;
the main element symbols are as follows:
the device comprises a test chamber 1, a first opening 11, a vibration chamber 2, a vibration platform 21, a second opening 22, a through groove 23, a second elastic sealing ring 24, a heat insulation expansion joint 3, a mounting ring plate 31, a sealing gasket 32, an air pressure balance hole 4 and a heat insulation pipe 41.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1-3, the utility model discloses an utilize sealed multi-environment vibration test box of expansion joint, including experimental cavity 1 and vibration cavity 2, experimental cavity 1 bottom is equipped with first opening 11, and vibration platform 21 is installed to 2 upsides of vibration cavity, and vibration platform 21 up runs through vibration cavity 2 and stretches into in the opening 11, and thermal-insulated expansion joint 3 is installed to experimental cavity 1 bottom, and the first opening 11 outside is located to thermal-insulated expansion joint 3 cover, and 3 lower extremes of thermal-insulated expansion joint and vibration cavity 2 fixed connection are equipped with atmospheric pressure connectivity structure between experimental cavity 1 and the vibration cavity 2.
Can seal between test chamber 1 and vibration chamber 2 through thermal-insulated expansion joint 3, and can make between test chamber 1 and the vibration chamber 2 through atmospheric pressure communicating structure and be linked together between test chamber 1 and the vibration chamber 2, thereby make test chamber 1, thermal-insulated expansion joint 3 and vibration chamber 2 can communicate each other and form a whole, when simulation low pressure environment evacuation, can make test chamber 1, thermal-insulated expansion joint 3 and vibration chamber 2's inner space pressure keeps unanimous, make vibration platform no longer receive the influence because of pressure differential, make the test piece can normally carry out the vibration test under the low pressure environment.
Referring to fig. 2, the upper and lower sides of the thermal insulation expansion joint 3 are both fixedly provided with mounting ring plates 31, and the mounting ring plates 31 on the upper and lower sides are both fixed to the bottom of the test chamber 1 and the vibration chamber 2 by bolts.
Through the installation ring plates 31 on the upper side and the lower side, the installation structure between the heat insulation expansion joint 3 and the bottom of the test chamber 1 and between the heat insulation expansion joint 3 and the vibration chamber 2 is simple, and the assembly and disassembly are convenient.
Referring to fig. 2, the mounting ring plates 31 on the upper and lower sides are also provided with sealing washers 32.
The sealing gaskets 32 can further seal tightly between the mounting ring plate 31 and the bottom of the test chamber 1 and between the mounting ring plate 31 and the vibration chamber 2, so as to ensure the sealing performance.
Example 2:
compared with embodiment 1, embodiment 2 provides an arrangement manner of the air pressure communication structure, as shown in fig. 1, the upper side of the vibration chamber 2 is an opening structure, the air pressure communication structure is a second opening 22 opened on the upper side of the vibration chamber 2, and a communication gap is formed between the second opening 22 and the vibration platform 21.
The upper side of the vibration chamber 2 is opened, and a communicating gap is formed between the second opening 22 and the vibration platform 21, so that the vibration chamber 2 and the test chamber 1 jointly form a communicated whole under the connection of the heat insulation expansion joint 3, and the pressure in the test chamber 1, the heat insulation expansion joint 3 and the vibration chamber 2 can be kept consistent when the vacuum pumping is performed in a simulated low-pressure environment.
Example 3:
compared with the embodiment 1, the embodiment 3 further provides another arrangement mode of the air pressure communication structure, as shown in fig. 3, the upper side of the vibration chamber 2 is of a closed structure, the air pressure communication structure is a through groove 23 formed in the vibration chamber 2 and air pressure balance holes 4 formed in the vibration chamber 2 and the test chamber 1 respectively, a second elastic sealing ring 24 is installed on the side wall of the through groove 23, the vibration platform 21 and the through groove 23 are sealed through the second elastic sealing ring 24, and a heat insulation pipe 41 is connected between the two air pressure balance holes 4.
Seal through 2 upsides of vibration chamber, under the sealed of second elastic seal ring 24, make vibration platform 21 obtain sealedly all the time at the in-process that leads to groove 23 vibration from top to bottom, and connect heat insulating tube 31 between two atmospheric pressure balance hole 3, can be linked together test chamber 1 and vibration chamber 2 for a whole, through heat insulating tube 31 with test chamber 1, leather thermal expansion joint 3 and vibration chamber 2 intercommunication are a whole, when simulation low pressure environment evacuation, test chamber 1, the atmospheric pressure of heat insulating expansion joint 3 and vibration chamber 2 can keep unanimous, and heat insulating tube 31 can avoid simultaneously and external atmosphere between the heat transfer.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides an utilize sealed many environment vibration test case of expansion joint, includes experimental chamber and vibration chamber, its characterized in that: the utility model discloses a vibration cavity, including vibration cavity, experimental cavity, vibration platform, vibration cavity, thermal-insulated expansion joint, vibration cavity, vibration platform, thermal-insulated expansion joint cover, vibration cavity, vibration platform up runs through the vibration cavity stretches into in the opening, thermal-insulated expansion joint is installed to experimental cavity bottom, the thermal-insulated expansion joint cover is located the first opening outside, thermal-insulated expansion joint lower extreme with vibration cavity fixed connection, experimental cavity with be equipped with atmospheric pressure intercommunication structure between the vibration cavity.
2. The multi-environment vibration test chamber sealed by the expansion joint as set forth in claim 1, wherein: and the upper side and the lower side of the heat insulation expansion joint are fixedly provided with mounting ring plates, and the mounting ring plates on the upper side and the lower side are fixed with the bottom of the test chamber and the vibration chamber through bolts.
3. The multi-environment vibration test chamber sealed by the expansion joint as set forth in claim 2, wherein: and the mounting ring plates on the upper side and the lower side are also provided with sealing gaskets.
4. A multi-environment vibration test chamber sealed with an expansion joint according to any one of claims 1 to 3, wherein: the upper side of the vibration chamber can be of an opening structure, the air pressure communication structure is a second opening arranged on the upper side of the vibration chamber, and a communication gap is formed between the second opening and the vibration platform.
5. A multi-environment vibration test chamber sealed with an expansion joint according to any one of claims 1 to 3, wherein: the utility model discloses a vibration cavity, including vibration cavity, atmospheric pressure intercommunication structure, vibration cavity, second elastic sealing ring, vibration platform, vibration cavity upside also can be the enclosed construction, atmospheric pressure intercommunication structure for set up in the logical groove of vibration cavity, respectively set up in the vibration cavity with the atmospheric pressure balance hole of experimental cavity, the lateral wall that leads to the groove is installed the second elastic sealing ring, vibration platform with lead to the groove and seal through second elastic sealing ring, two be connected with the heat-insulating tube jointly between the atmospheric pressure balance hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557745.6U CN216012661U (en) | 2021-10-21 | 2021-10-21 | Multi-environment vibration test box sealed by expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557745.6U CN216012661U (en) | 2021-10-21 | 2021-10-21 | Multi-environment vibration test box sealed by expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216012661U true CN216012661U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122557745.6U Active CN216012661U (en) | 2021-10-21 | 2021-10-21 | Multi-environment vibration test box sealed by expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216012661U (en) |
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2021
- 2021-10-21 CN CN202122557745.6U patent/CN216012661U/en active Active
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