CN220226666U - Large-scale test box chamber door seal structure - Google Patents

Abstract

The utility model discloses a large-scale test box door sealing structure which comprises a test box body, wherein a box door is arranged at one end of the test box body, a sealing ring is arranged between the box door and the test box body, the sealing ring is elastic, a hollow cavity surrounding along the circumferential direction of the sealing ring is arranged in the sealing ring, the hollow cavity is connected with an inflation and deflation system, and after the box door is closed, the inflation and deflation system can inflate air into the hollow cavity so that the sealing ring is inflated and extruded between the box door and the test box body. The beneficial effects of the utility model are as follows: and (3) filling gas into the hollow cavity through the inflation and deflation system, and expanding and extruding the sealing ring between the box door and the box body of the test box to finish the sealing of the box body of the test box. Compared with the traditional rubber ring seal, the sealing mode has better and excellent sealing performance. In addition, even if the case door deforms, the elastic sealing ring can adaptively deform, so that the sealing ring is ensured to be always sealed between the case door and the test case body without gaps.

Description

Large-scale test box chamber door seal structure

Technical Field

The utility model relates to an environment test box, in particular to a box door sealing structure of a large-scale test box.

Background

The environment test box is test equipment capable of simulating different environment parameters, and after the product is placed in the test box, the service performance of the product in a simulated environment can be tested and evaluated by setting the environment parameters in the test box. The simulation functions of the currently known test chambers are: temperature, humidity, air pressure, vibration, snow, sand and the like. The functions of the test chamber can be combined and configured in a targeted manner according to different test objects.

The test box comprises a box body and a box door pivotally arranged on the front side of the box body. In general, in the process of performing each test, the sealing between the box door and the box body must be ensured, so as to ensure the sealing of the test space of the test box, and prevent the external temperature from affecting the temperature of the test space. The traditional test box sealing system generally adopts the rubber ring sealing mode, but for large-scale test objects, the box body and the box door of the test box can be larger, and the too large box door can have the problems of insufficient rigidity, easy deformation and the like, and if the traditional rubber ring sealing is used again, the risk of the reduction of the sealing performance of the box door and even failure exists.

Disclosure of Invention

In view of the above, the utility model provides a large-sized box door sealing structure which can be applied to a large-sized box door and has better sealing performance.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a large-scale test box chamber door seal structure, includes the test box, the chamber door is installed to the one end of test box, its key lies in: the sealing ring is arranged between the box door and the box body of the test box, the sealing ring is elastic, a hollow cavity surrounding along the circumferential direction of the sealing ring is arranged inside the sealing ring, the hollow cavity is connected with an inflation and deflation system, and after the box door is closed, the inflation and deflation system can inflate air into the hollow cavity so that the sealing ring is inflated and extruded between the box door and the box body of the test box.

By adopting the structure, when the box body of the test box needs to be sealed, the box door is closed, gas is filled into the hollow cavity through the gas filling and discharging system, and the sealing ring is expanded and extruded between the box door and the box body of the test box to finish the sealing of the box body of the test box. Compared with the traditional rubber ring seal, the sealing mode has better and excellent sealing performance. In addition, even if the case door deforms, the elastic sealing ring can adaptively deform, so that the sealing ring is ensured to be always sealed between the case door and the test case body without gaps.

As preferable: one end of the box door is rotationally connected with the box body of the test box, and a locking component is arranged between the other end of the box door and the box body of the test box.

As preferable: the inflation and deflation system comprises an air inlet pipe and an exhaust pipe which are communicated with the hollow cavity, an air pump and an air inlet electromagnetic valve are arranged on the air inlet pipe, and an exhaust electromagnetic valve is arranged on the exhaust pipe.

As preferable: the sealing washer is close to one side of test box has two rings of bulge, after the sealing washer inflation extrusion is between chamber door and test box, two rings the bulge, homoenergetic with the lateral wall butt of test box.

As preferable: the box door is provided with an annular clamping groove which is matched with the sealing ring, and the two circles of protruding parts of the sealing ring protrude out of the notch of the annular clamping groove.

As preferable: the sealing ring is made of a silicon rubber material. With the above structure, the sealing property, heat resistance and cold resistance are excellent.

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

when the large-sized test box door sealing structure provided by the utility model is adopted, the box door is closed when the test box body needs to be sealed, gas is filled into the hollow cavity through the gas filling and discharging system, and the sealing ring is expanded and extruded between the box door and the test box body, so that the seal of the test box body is completed. Compared with the traditional rubber ring seal, the sealing mode has better and excellent sealing performance. In addition, even if the case door deforms, the elastic sealing ring can adaptively deform, so that the sealing ring is ensured to be always sealed between the case door and the test case body without gaps.

Drawings

FIG. 1 is a cross-sectional view of a test chamber body 1;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic diagram of the operation of the inflation and deflation system.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1, a large-scale test box door sealing structure comprises a test box body 1, wherein the test box body 1 is provided with a working chamber 1b for placing a product to be tested; the open end of the working chamber 1b is provided with a chamber door 1a, and as can be seen from fig. 2, a sealing ring 2 is arranged between the chamber door 1a and the working chamber 1b, the sealing ring 2 has elasticity, and a hollow chamber 2a surrounding along the circumferential direction is arranged in the sealing ring 2; the hollow chamber 2a is connected with an inflation and deflation system, and after the box door 1a is closed, the inflation and deflation system can inflate gas into the hollow chamber 2a so that the sealing ring 2 is inflated and extruded between the box door 1a and the test box body 1. In this embodiment, one end of the door 1a is rotatably connected to the open end of the working chamber 1b, and a locking assembly 3 is provided between the other end and the open end of the working chamber 1 b.

Before testing the product in the working chamber 1b, the chamber door 1a is closed, the locking component 3 is used for locking the chamber door 1a, the inflation and deflation system is opened, and the hollow chamber 2a is inflated with gas, so that the sealing ring 2 can be expanded and extruded between the chamber door 1a and the test chamber body 1, the seal of the test chamber body 1 is completed, and compared with the traditional rubber ring seal mode, the sealing device has better excellent sealing performance, and is simple in structure and easy to install. In addition, even if the case door 1a is deformed, the sealing ring 2 having elasticity can be deformed adaptively, so that the sealing ring 2 is always tightly sealed between the case door 1a and the test case body 1.

Further, as shown in fig. 3, the inflation/deflation system includes an air inlet pipe 2b and an air outlet pipe 2c which are communicated with the hollow chamber 2a, the air inlet pipe 2b is provided with an air pump 2d and an air inlet electromagnetic valve 2e, and the air outlet pipe 2c is provided with an air outlet electromagnetic valve 2f. After the box door 1a is locked, the air pump 2d and the air inlet electromagnetic valve 2e are opened, and air can be filled into the hollow cavity 2a of the sealing ring 2, so that the sealing ring 2 is expanded and tightly pressed between the box door 1a and the test box body 1. After the test is finished, the exhaust electromagnetic valve 2f is opened to release the gas in the hollow chamber 2a, so that the box door 1a can be opened, the whole operation process is simple and convenient, and meanwhile, the device has certain safety and reliability.

Referring to fig. 2, a box door 1a is provided with an annular clamping groove 1a1 adapted to a sealing ring 2, and the sealing ring 2 is preset in the annular clamping groove 1a 1; two circles of protruding parts 2g are arranged on one side, close to the test box body 1, of the sealing ring 2, and the two circles of protruding parts 2g protrude out of the notch of the annular clamping groove 1a 1. After the sealing ring 2 is expanded and extruded between the box door 1a and the test box body 1, the two rings of protruding parts 2g can be abutted with the side wall of the test box body 1. The setting of two rings of bulge 2g has increased the area of contact with test box 1 after the inflation gas system is inflated to it, has better leakproofness in comparison with the sealing washer of only single circle.

In addition to the above embodiment, the sealing ring 2 may be embedded outside the open end of the working chamber 1b, and two rings of protruding portions 2g are provided on one side of the sealing ring 2 near the chamber door 1a, and when the sealing ring 2 is expanded and extruded between the chamber door 1a and the test chamber body 1, the two rings of protruding portions 2g can both be abutted against the chamber door 1 a. The same effects as those of the above embodiment can be produced by such a design.

In this embodiment, the seal ring 2 is made of a silicone rubber material, and has higher high temperature resistance and low temperature resistance than ordinary rubber, and excellent sealing performance.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (6)

1. The utility model provides a large-scale test box chamber door seal structure, includes test box (1), chamber door (1 a), its characterized in that are installed to one end of test box (1): be equipped with sealing washer (2) between chamber door (1 a) and test box (1), sealing washer (2) have elasticity, and its inside is equipped with hollow cavity (2 a) of encircling along its circumference, hollow cavity (2 a) are connected with and fill the gassing system, after chamber door (1 a) is closed, fill the gassing system and can fill gas to hollow cavity (2 a) to make sealing washer (2) inflation extrusion between chamber door (1 a) and test box (1).

2. The large-scale proof box chamber door seal structure of claim 1, wherein: one end of the box door (1 a) is rotationally connected with the test box body (1), and a locking component (3) is arranged between the other end of the box door and the test box body (1).

3. The large-scale proof box chamber door seal structure of claim 1, wherein: the air charging and discharging system comprises an air inlet pipe (2 b) and an air outlet pipe (2 c), wherein the air inlet pipe (2 b) is communicated with the hollow cavity (2 a), an air pump (2 d) and an air inlet electromagnetic valve (2 e) are arranged on the air inlet pipe (2 b), and an air outlet electromagnetic valve (2 f) is arranged on the air outlet pipe (2 c).

4. The large-scale proof box chamber door seal structure of claim 1, wherein: one side of the sealing ring (2) close to the test box body (1) is provided with two circles of protruding parts (2 g), and after the sealing ring (2) is expanded and extruded between the box door (1 a) and the test box body (1), the two circles of protruding parts (2 g) can be abutted to the side wall of the test box body (1).

5. The large-scale proof box chamber door seal structure of claim 4, wherein: the box door (1 a) is provided with an annular clamping groove (1 a 1) which is matched with the sealing ring (2), and two circles of protruding parts (2 g) of the sealing ring (2) protrude out of the notch of the annular clamping groove (1 a 1).

6. The large-scale proof box chamber door seal structure of claim 1, wherein: the sealing ring (2) is made of a silicon rubber material.