CN214183141U

CN214183141U - High-low temperature alternating damp-heat test box shell protection device

Info

Publication number: CN214183141U
Application number: CN202021930511.0U
Authority: CN
Inventors: 聂代候
Original assignee: Wuxi Jiuying Environmental Testing Equipment Co ltd
Current assignee: Wuxi Jiuying Environmental Testing Equipment Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-09-14
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a high-low temperature alternation damp-heat test box shell protection device, which comprises a box shell, wherein a gas outlet is arranged inside the box shell, the outside of the gas outlet is connected with a pipeline, a pressure relief valve device is arranged outside the box shell, and one end of the pressure relief valve device is communicated with the pipeline, the utility model fixes the pressure relief valve device outside the box shell of the test box, and the box shell of the test box is provided with a top cover, but the box shell is not drawn because of the picture in the text, because the strong air pressure is generated due to the excessive temperature difference change in the experiment, the air pressure is possibly pressed out without extruding and deforming the test box, the pressure relief valve device can be used, when the air pressure in the box shell of the test box reaches a certain high strength, the air pressure pushes a push rod to drive the telescopic rod to move through the pipeline, when the telescopic rod stretches to a certain length, a plug on the push rod moves to the outside the pipeline to release the air pressure, the strength of air pressure in the box is reduced, and the box body deformation caused by over-strong air pressure and subsequent use influence of the box body are avoided.

Description

High-low temperature alternating damp-heat test box shell protection device

Technical Field

The utility model relates to a proof box case shell protection field specifically is a high low temperature reversal damp and hot proof box case shell protector.

Background

The high-low temperature alternating damp-heat test box is necessary test equipment in the fields of aviation, automobiles, household appliances, scientific research and the like, and is used for testing and determining parameters and performances of electricians, electronics and other products and materials after the temperature environment changes of high temperature, low temperature, alternating damp-heat degree or constant test.

The existing high-low temperature alternating damp-heat test box can simulate the environmental temperature of dozens of degrees below zero to more than one hundred degrees above zero, but the products used in certain specific fields need the high-low temperature alternating damp-heat test box to simulate the environmental temperature of more than one hundred degrees below zero to more than one hundred degrees above zero, even more than two hundred degrees. Therefore, the box body of the existing high-low temperature alternating test box is easy to generate high pressure when the environment temperature difference is large, so that the box body is deformed. Therefore, a high-low temperature alternating damp-heat test box shell protection device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high low temperature reversal damp and hot test box case shell protector to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high low temperature reversal damp and hot test case shell protector, includes the case shell, the inside gas outlet that is equipped with of case shell, the gas outlet outside is connected with the pipeline, relief valve device is installed in the case shell outside, and relief valve device one end and pipeline intercommunication.

Preferably, the relief valve device includes casing, extrusion device and regulator installation are in the casing again, the regulator is connected to the extrusion device, the extrusion device includes telescopic link, push rod and spring, pipeline internal fixation telescopic link, the push rod is connected to the telescopic link, be fixed with the stopper with pipeline looks adaptation on the push rod, stopper and pipeline sliding connection, the push rod outer end is fixed with first ring, first ring one end fixed spring.

Preferably, the pressure regulating device includes closure plate, lead screw, nut and pressure release stopper, the fixed second ring of lead screw, and second ring one end is fixed with the spring, fixed closure plate on the lead screw, lead screw threaded connection nut, the lead screw other end pass the casing and with pressure release stopper sliding connection, pressure release stopper fixed department is equipped with the O shape circle that prevents gas leakage, the case shell is equipped with the bounding wall that prevents the unexpected breaking away from of pressure release stopper outward.

Preferably, the telescopic rod extends and retracts for a distance greater than the moving distance of the plug in the push rod.

Preferably, the outer ring of the blocking plate is provided with a soft plug matched with the area of the shell of the pressure release valve

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an at test box case shell external fixation relief valve device, because can produce powerful atmospheric pressure because of the difference in temperature change is too big in the experiment, it does not go to the extrusion deformation of test box to lead to the atmospheric pressure, we can use relief valve device, when atmospheric pressure in the test box case shell reaches certain high strength, atmospheric pressure passes through pipeline promotion push rod and drives the telescopic link motion, when the telescopic link stretches out and draws back to certain length, stopper on the push rod moves the pipeline outside and carries out the release of atmospheric pressure, the intensity of atmospheric pressure in the case has been alleviateed, the case can not appear leading to the box to warp because of atmospheric pressure is too strong, influence follow-up use.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a schematic side-cut view of the air release valve device of the present invention;

FIG. 3 is a schematic view of the connection of the air release valve device of the present invention;

fig. 4 is a schematic view of the assembly connection of the extruding apparatus of the present invention.

In the figure: 1-a box shell; 2-air outlet; 3-a pipeline; 4-a pressure relief valve device; 5-an extrusion device; 6-a pressure regulating device; 7-a telescopic rod; 8-a push rod; 9-a spring; 10-a plug; 11-a first circular ring; 12-a blocking plate; 13-a screw rod; 14-a screw cap; 15-a pressure relief plug; 16-a second ring; 17-O-rings; 18-enclosing plates; 19-soft plug; 20-shell.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, a high-low temperature alternating humidity and heat test box shell protection device is shown, which comprises a box shell 1 and is characterized in that; the inside gas outlet 2 that is equipped with of

case shell

1, 2 outsides in the gas outlet are connected with pipeline 3, relief valve device 4 is installed in the 1 outside of case shell, and 4 one end of relief valve device communicate with pipeline 3.

Relief valve device 4 includes casing, extrusion device 5 and pressure regulating device 6, extrusion device 5 and the installation of pressure regulating device 6 are in the casing again, extrusion device 5 connects pressure regulating device 6, extrusion device 5 includes telescopic link 7, push rod 8 and

spring

9, 3 internal fixation telescopic links 7 of pipeline, telescopic link 7 connects push rod 8, be fixed with the stopper 10 with 3 looks adaptations of pipeline on the push rod 8, stopper 10 and 3 sliding connection of pipeline, 8 outer ends of push rod are fixed with

first ring

11, 11 one end fixed spring 9 of first ring.

Pressure regulating device 6 includes closure plate 12, lead screw 13, nut 14 and pressure release stopper 15, the fixed second ring 16 of

lead screw

13, and 16 one end of second ring is fixed with spring 9, fixed closure plate 12 on the lead screw 13, lead screw 13 threaded connection nut 14, the lead screw 13 other

end passes casing

5 and 15 sliding connection with pressure release stopper, pressure release stopper 15 fixed department is equipped with the O shape circle 17 that prevents gas leakage, case shell 1 is equipped with the bounding wall 18 that prevents pressure release stopper 15 unexpected breaking away from outward, and the removal of nut 14 realizes the control to the amount of movement of lead screw 13.

The telescopic rod 7 extends and retracts for a distance which is larger than the moving distance of the plug 10 in the push rod 8.

The outer ring of the blocking plate 12 is provided with a soft plug 19 which is matched with the area of the pressure relief valve shell 5.

In this scheme, need to explain, experimental box case 1 is there is the top cap, but does not draw because of the picture needs herein, when release valve device 4 moves, use extrusion device 5 to release the strong atmospheric pressure of case the inside and be greater than the principle of stopper 10 to the outer movement distance of pipeline 3 on the push rod 8 through telescopic link 7 movement distance in the gas outlet 2 follow pipeline 3, alleviate the atmospheric pressure of incasement, can adjust the intensity of release atmospheric pressure through pressure regulating device 6 according to the intensity of atmospheric pressure, prevent that incasement atmospheric pressure from leading to the case deformation to influence follow-up use, lead to work efficiency to descend.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-low temperature alternating damp-heat test box shell protection device comprises a box shell (1) and is characterized in that; the gas outlet (2) is arranged inside the box shell (1), the pipeline (3) is connected to the outer side of the gas outlet (2), the pressure release valve device (4) is installed on the outer side of the box shell (1), and one end of the pressure release valve device (4) is communicated with the pipeline (3).

2. The high-low temperature alternating damp-heat test box shell protection device according to claim 1, wherein: relief valve device (4) are including casing (20), extrusion device (5) and pressure regulating device (6), install in casing (20) extrusion device (5) and pressure regulating device (6), pressure regulating device (6) are connected in extrusion device (5), extrusion device (5) are including telescopic link (7), push rod (8) and spring (9), pipeline (3) internal fixation telescopic link (7), telescopic link (7) connecting rod (8), be fixed with on push rod (8) with stopper (10) of pipeline (3) looks adaptation, stopper (10) and pipeline (3) sliding connection, push rod (8) outer end is fixed with first ring (11), first ring (11) one end fixed spring (9).

3. The high-low temperature alternating damp-heat test box shell protection device according to claim 2, wherein: pressure regulating device (6) are including closure plate (12), lead screw (13), nut (14) and pressure release stopper (15), lead screw (13) outside is fixed with second ring (16), and second ring (16) one end is fixed with spring (9), the fixed closure plate (12) in outside is gone up in lead screw (13), lead screw (13) threaded connection nut (14), lead screw (13) other end pass casing (20) and with pressure release stopper (15) sliding connection, pressure release stopper (15) fixed department is equipped with O shape circle (17) that prevent gas leakage, case shell (1) is equipped with bounding wall (18) that prevent pressure release stopper (15) unexpected break away from outward.

4. The high-low temperature alternating damp-heat test box shell protection device according to claim 3, wherein: the telescopic distance of the telescopic rod (7) is greater than the moving distance of the plug (10) in the push rod (8).

5. The high-low temperature alternating damp-heat test box shell protection device according to claim 4, wherein: the outer ring of the blocking plate (12) is provided with a soft plug (19) which is matched with the area of the shell (20).