Vacuum test air inlet plugging structure of vacuum detection box

Abstract

The utility model relates to vacuum test technical field, and disclose a kind of vacuum test air inlet plugging structure of vacuum detection box, including detection cabinet, still include: fixed in the pipeline of detection cabinet one side, the surface of the pipeline is fixedly connected with fixed ring, the surface of the pipeline one side is inserted with sealing head, the inside fixedly connected with baffle of sealing head, the baffle one side is provided with pressure relief piece, the pressure relief piece includes torsion ring and sealing ring, the side of the pipeline is provided with first sealing groove. With the adaptation of first sealing groove and sealing block, the sealing property when sealing head and pipeline are engaged is improved;At the same time, using sealing tube cooperates second sealing groove, the sealing of the sticking part of the surface of pipeline and sealing head is carried out, to avoid gas escape, and, while pressure relief piece is placed in sealing head interior, can be adjusted pipeline exhaust pressure relief according to actual demand, prevent the adverse effect caused by air pressure sudden change when detection cabinet is opened, guarantee detection process stability.

Description

Technical Field

[0001] This utility model relates to the field of vacuum test chamber technology, specifically to a vacuum test inlet sealing structure for a vacuum test chamber. Background Technology

[0002] Currently, vacuum test chambers must undergo a sealing test before vacuum testing to prevent outside air from seeping in due to poor sealing, which could lead to inaccurate test results. The first step before the sealing test is to seal the air inlet of the vacuum test chamber to ensure no gas leakage, thus laying a solid foundation for accurate vacuum testing.

[0003] In the precise testing process of vacuum test chambers, effective sealing of the air inlet is the core point for maintaining the airtightness of the chamber and ensuring accurate test results. However, traditional sealing plugs generally rely on a single mechanical sealing structure. Although they can meet the basic airtightness requirements during the testing stage, they are difficult to meet the functional requirements of the entire process. After the test is completed, due to their lack of fine control over the depressurization process, when the test chamber is opened, it is very easy to cause drastic changes in air pressure. This will not only cause errors in the test data, but may also cause irreversible damage to the delicate test objects inside, becoming a bottleneck that restricts the improvement of testing efficiency and quality. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum testing air inlet sealing structure for a vacuum testing chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum testing inlet sealing structure for a vacuum testing chamber, comprising a testing chamber body, and further comprising:

[0006] A pipe is fixed to one side of the testing box. A fixing ring is fixedly connected to the surface of the pipe. A sealing head is inserted into one side of the surface of the pipe. A partition is fixedly connected inside the sealing head. A pressure relief component is provided on one side of the partition. The pressure relief component includes a torsion ring and a sealing ring.

[0007] Preferably, a first sealing groove is provided on one side of the pipe, and a sealing block that works in conjunction with the first sealing groove is fixedly connected to one side of the sealing head.

[0008] Preferably, a sealing tube is fixedly connected to one side of the sealing head, and a second sealing groove is provided on one side of the fixing ring to cooperate with the sealing tube.

[0009] Preferably, the inside of the pipe has two annular sealing grooves, and the inside of the sealing head is fixedly connected with a sealing ring that matches the annular sealing grooves.

[0010] Preferably, the torsion ring is rotatably connected to one side of the partition, the sealing ring is slidably connected to the inside of the sealing head, and a screw that is rotatably connected to the inside of the partition is fixedly connected to one side of the torsion ring. A pusher is threadedly connected to the surface of the screw, and one side of the pusher is fixedly connected to the sealing ring.

[0011] Preferably, a limiting plate is fixedly connected to one side of the sealing ring, and exhaust grooves are provided at the top and bottom of the inner cavity of the sealing head to cooperate with the sealing ring.

[0012] Preferably, one end of the screw is fixedly connected to a retaining ring for limiting the stroke of the pusher, and the surface of the torsion ring is provided with an anti-slip groove.

[0013] Preferably, the sealing head has a torsion groove on its outer surface, and the torsion groove is arranged in a ring array.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention improves the sealing performance when the sealing head and the pipe are engaged by adapting the first sealing groove and the sealing block. At the same time, the sealing tube works with the second sealing groove to seal the part of the pipe surface that is in contact with the sealing head, preventing gas from escaping. Furthermore, the pressure relief component is placed inside the sealing head, which can adjust the pipe exhaust pressure relief according to actual needs, preventing adverse effects caused by sudden changes in air pressure when the test box is opened, and ensuring the stability of the test process. Attached Figure Description

[0016] Figure 1 A schematic diagram of the vacuum testing air inlet sealing structure of the vacuum testing chamber provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the sealing head provided by this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the pipeline provided by this utility model;

[0019] Figure 4 This is a schematic diagram of the pressure relief component provided by this utility model.

[0020] In the diagram: 1. Detection box; 2. Pipeline; 3. Sealing head; 31. Fixing ring; 4. Partition; 5. Pressure relief component; 501. Torsion ring; 502. Sealing ring; 503. Screw; 504. Push frame; 505. Limiting plate; 506. Exhaust groove; 507. Retention ring; 508. Anti-slip groove; 6. First sealing groove; 7. Sealing block; 8. Sealing pipe; 9. Second sealing groove; 10. Annular sealing groove; 11. Sealing ring; 12. Torsion groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 As shown, a vacuum testing inlet sealing structure for a vacuum testing chamber includes a testing chamber body 1 and a pipe 2 fixed to one side of the testing chamber body 1. A first sealing groove 6 is formed on one side of the pipe 2. A sealing block 7, which works in conjunction with the first sealing groove 6, is fixedly connected to one side of a sealing head 3. A twisted groove 12 is formed on the outside of the sealing head 3, arranged in a ring array. The twisted groove 12 facilitates the operator's manipulation of the sealing head 3 to insert it into the surface of the pipe 2, improving operational convenience. A fixing ring 31 is fixedly connected to the surface of the pipe 2, and two annular sealing blocks are formed inside the pipe 2. The sealing groove 10 and the sealing head 3 are internally fixedly connected with a sealing ring 11 that works with the annular sealing groove 10. Gas flows into the interior of the detection chamber 1 through the pipe 2 on one side of the detection chamber 1. The first sealing groove 6 on one side of the pipe 2, together with the sealing block 7 on one side of the sealing head 3, improves the sealing performance when the sealing head 3 and the pipe 2 are engaged. The setting of the fixing ring 31 facilitates subsequent sealing work. The setting of the annular sealing groove 10, together with the sealing ring 11 extending inside the sealing head 3, can improve the sealing performance between the inside of the pipe 2 and the sealing head 3, and prevent gas from escaping.

[0023] A sealing head 3 is inserted into one side of the surface of pipe 2. A sealing tube 8 is fixedly connected to one side of the sealing head 3. A second sealing groove 9 for use with the sealing tube 8 is opened on one side of the fixing ring 31. A partition 4 is fixedly connected inside the sealing head 3. A pressure relief component 5 is provided on one side of the partition 4. The pressure relief component 5 includes a torsion ring 501 and a sealing ring 502. The sealing tube 8 on one side of the sealing head 3 can completely cover the surface of pipe 2. With the cooperation of the second sealing groove 9 inside the fixing ring 31, the overall sealing performance between the sealing head 3 and pipe 2 can be achieved. The partition 4 facilitates the fixed installation of the pressure relief component 5. The setting of the pressure relief component 5 can adjust the pressure relief and exhaust between the sealing head 3 and pipe 2, improve the convenience of use, and prevent adverse effects caused by sudden changes in air pressure when the test box is opened.

[0024] A torsion ring 501 is rotatably connected to one side of the partition 4, and a sealing ring 502 is slidably connected to the inside of the sealing head 3. A limiting plate 505 is fixedly connected to one side of the sealing ring 502. Exhaust grooves 506 for use with the sealing ring 502 are provided at the top and bottom of the inner cavity of the sealing head 3. A screw 503 rotatably connected to the inside of the partition 4 is fixedly connected to one side of the torsion ring 501. A pusher 504 is threadedly connected to the surface of the screw 503. A retaining ring 507 for limiting the stroke of the pusher 504 is fixedly connected to one end of the screw 503. The surface of the torsion ring 501 is open... The device is equipped with an anti-slip groove 508. One side of the pusher 504 is fixedly connected to the sealing ring 502. When the user needs to relieve pressure and vent through the vent groove 506, the user rotates the torsion ring 501. The torsion ring 501 drives the screw 503 to rotate. At this time, the pusher 504 with internal threads will drive the sealing ring 502 to move. The sealing ring 502 will drive the limiting plate 505 to move within the preset vent groove 506. When the sealing ring 502 moves a certain distance, the vent groove 506 will vent through the inside of the pipe 2, thereby achieving the effect of venting pressure.

[0025] Working principle: First, when the user needs to seal the pipe 2, they first squeeze the sealing head 3 to align the sealing block 7 and sealing tube 8 with the pipe 2, and then move them. At this time, the sealing block 7 will be inserted into the first sealing groove 6, and the sealing tube 8 will be inserted into the second sealing groove 9, thus sealing and covering the entire surface of the pipe 2. At this time, the sealing ring 11 inside the sealing head 3 will also elastically engage with the annular sealing groove 10, thus preventing gas from escaping. When the user needs to release pressure and vent through the vent groove 506, they rotate the torsion ring 501, which drives the screw 503 to rotate. At this time, the pusher 504 with internal threads will drive the sealing ring 502 to move. The sealing ring 502 will drive the limiting plate 505 to move within the preset vent groove 506. When the sealing ring 502 moves to a certain distance, the vent groove 506 will be vented through the pipe 2, thus achieving the effect of pressure relief and preventing adverse effects caused by sudden changes in air pressure when the test box is opened, ensuring the stability of the test process.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum testing inlet sealing structure for a vacuum testing chamber, comprising a testing chamber body (1), characterized in that, Also includes: A pipe (2) is fixed to one side of the detection box (1). A fixing ring (31) is fixedly connected to the surface of the pipe (2). A sealing head (3) is inserted into one side of the surface of the pipe (2). A partition (4) is fixedly connected inside the sealing head (3). A pressure relief component (5) is provided on one side of the partition (4). The pressure relief component (5) includes a torsion ring (501) and a sealing ring (502).

2. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 1, characterized in that: A first sealing groove (6) is provided on one side of the pipe (2), and a sealing block (7) that works in conjunction with the first sealing groove (6) is fixedly connected to one side of the sealing head (3).

3. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 1, characterized in that: A sealing tube (8) is fixedly connected to one side of the sealing head (3), and a second sealing groove (9) is provided on one side of the fixing ring (31) to cooperate with the sealing tube (8).

4. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 1, characterized in that: The pipe (2) has two annular sealing grooves (10) inside, and the sealing head (3) has a sealing ring (11) that is used in conjunction with the annular sealing grooves (10) inside.

5. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 1, characterized in that: The torsion ring (501) is rotatably connected to one side of the partition (4), and the sealing ring (502) is slidably connected to the inside of the sealing head (3). A screw (503) is fixedly connected to one side of the torsion ring (501) and rotatably connected to the inside of the partition (4). A pusher (504) is threadedly connected to the surface of the screw (503), and one side of the pusher (504) is fixedly connected to the sealing ring (502).

6. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 5, characterized in that: A limiting plate (505) is fixedly connected to one side of the sealing ring (502), and an exhaust groove (506) is provided at the top and bottom of the inner cavity of the sealing head (3) to cooperate with the sealing ring (502).

7. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 5, characterized in that: One end of the screw (503) is fixedly connected to a retaining ring (507) used to limit the stroke of the pusher (504), and the surface of the torsion ring (501) is provided with an anti-slip groove (508).

8. The vacuum testing inlet sealing structure of a vacuum testing chamber according to claim 1, characterized in that: The sealing head (3) has a twisted groove (12) on its outside, and the twisted groove (12) is arranged in a ring array.

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