Mounting structure for testing cavity through pressure attenuation method

Abstract

The utility model provides a mounting structure for a pressure attenuation method test cavity, which comprises an upper cavity, a lower cavity and a sealing cavity clamped in the upper cavity, the upper cavity covers the lower cavity, and a rotating structure which enables the upper cavity and the lower cavity to rotate relatively and drives the upper cavity and the lower cavity to be locked is arranged between the upper cavity and the lower cavity. The rotating structure is arranged between the upper cavity and the lower cavity, does not protrude outwards, is small in occupied space, can be locked only through rotation, and is convenient to operate and high in opening and closing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging seal detection, in particular to an installation structure for a pressure decay method test cavity. Background Art

[0002] Due to its numerous advantages and reliability, the pressure decay method is becoming a mainstream test method for package integrity testing. However, existing pressure decay test chambers use a latch-type locking mechanism. To ensure uniform force distribution between the upper and lower contact surfaces, a latch is required on each side. This not only increases the overall volume of the chamber, making it very bulky, but also requires unlocking on both sides. Frequent sample changes require time-consuming opening and closing of the chamber, making sample replacement inefficient. Summary of the Invention

[0003] In order to solve the above problems of the prior art, the utility model provides an installation structure for a pressure decay method test cavity, in which a rotating structure is set at the joint of the upper and lower cavities, which can be opened and closed by rotation, which is easy to operate and occupies little space.

[0004] The technical solutions adopted are as follows:

[0005] A mounting structure for a pressure decay method test chamber includes an upper chamber, a lower chamber, and a sealed chamber clamped to the interior of the upper chamber. The upper chamber cover is disposed on the lower chamber, and a rotating structure is provided between the upper and lower chambers for enabling the upper and lower chambers to rotate relative to each other and drive the upper and lower chambers to be locked.

[0006] Furthermore, the rotating structure includes at least one guide groove provided on the side wall of the upper cavity for the upper cavity to rotate downward and be locked with the lower cavity; and also includes at least one guide column provided on the side wall of the lower cavity which can slide in the guide groove and cooperate with the upper cavity to rotate and lock, and the guide column is provided on the outer wall of the lower cavity and protrudes outward.

[0007] Furthermore, the rotating structure includes at least one guide groove provided on the side wall of the lower cavity for the upper cavity to rotate downward and is locked with the lower cavity; it also includes at least one guide column provided on the side wall of the upper cavity and slidingly cooperating with the rotation and locking of the lower cavity, and the guide column is provided on the inner wall of the upper cavity and protrudes inward.

[0008] Furthermore, the guide groove includes a translation section and a lifting section.

[0009] Furthermore, a notch is provided at the starting end of the guide groove for the guide post to enter the guide groove.

[0010] Furthermore, there are three guide grooves and three guide pillars respectively.

[0011] Furthermore, the upper cavity or the lower cavity is provided with a mounting hole for mounting a guide column.

[0012] Furthermore, the upper end of the upper cavity is provided with a rotating shaft for facilitating rotation and a fixing bolt for fixing the rotating shaft.

[0013] Furthermore, a sealing ring is provided between the sealing cavity and the lower cavity, and a recess for installing the sealing ring is provided on the lower cavity.

[0014] Furthermore, the inner wall of the upper cavity is provided with a slot cooperating with the sealing cavity, and the sealing cavity is rotatably arranged in the upper cavity.

[0015] Compared with the prior art, the beneficial effects produced by the present invention are:

[0016] The utility model provides an installation structure for a pressure decay method test chamber, wherein a sealed chamber is disposed within an upper chamber, and a rotating structure is disposed between the upper chamber and the lower chamber. The rotating structure includes a guide groove and a guide post disposed between the upper and lower chambers and cooperating with each other. The guide post can slide within the guide groove, and the guide groove can limit the guide post, so that the upper chamber rotates downward and a cover is disposed on the lower chamber and locked. Using the guide groove and the guide post to replace the lock in the prior art makes operation faster and simpler, and locking can be achieved by simply rotating. Moreover, the guide post and the guide groove are directly disposed on the outer walls of the upper and lower chambers, which does not increase the overall volume of the chamber, reduces the volume and occupied space, and makes sample replacement more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a disassembly diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 Schematic diagram of the structure of the upper cavity;

[0020] Figure 4 is a cross-sectional schematic diagram of the upper cavity;

[0021] Figure 5 It is a bottom view of the utility model;

[0022] Figure 6 It is an overall cross-sectional view of the utility model;

[0023] Among them, the upper cavity 1, the lower cavity 2, the sealing cavity 3, the rotating structure 4, the guide groove 401, the translation section 4011, the lifting section 4012, the guide column 402, the notch 5, the rotating shaft 6, the fixing bolt 7, the sealing ring 8, the sinking groove 9, and the card slot 10. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific embodiments.

[0025] refer to Figure 1-6 A mounting structure for a pressure decay method test chamber includes an upper chamber 1, a lower chamber 2, and a sealed chamber 3 that is clamped to the inside of the upper chamber. The upper chamber 1 is covered on the lower chamber 2. A rotating structure 4 is provided between the upper chamber 1 and the lower chamber 2 to rotate and drive the upper and lower chambers to lock.

[0026] As an embodiment, the rotating structure 4 includes at least one guide groove 401 provided on the side wall of the upper cavity 1 for the upper cavity to rotate downward and be locked with the lower cavity; it also includes at least one guide column 402 provided on the side wall of the lower cavity 2, which can slide in the guide groove and cooperate with the upper cavity to rotate and lock, and the guide column is provided on the outer wall of the lower cavity and protrudes outward.

[0027] As another embodiment, the rotating structure 4 includes at least one guide groove 401 provided on the side wall of the lower cavity 2 for the upper cavity to rotate downward and is locked with the lower cavity; it also includes at least one guide column 402 provided on the side wall of the upper cavity 1 and slidingly cooperating with the lower cavity to rotate and lock, and the guide column is provided on the inner wall of the upper cavity and protrudes inward.

[0028] The upper cavity 1 or the lower cavity 2 is provided with a mounting hole for mounting a guide post 402. The guide post 402 can be a cylindrical pin mounted in the mounting hole.

[0029] The guide slot 401 comprises a translation section 4011 and an elevation section 4012. The elevation section allows the upper chamber to move downward during rotation, through the cooperation of the guide slot and the guide post, to cover the lower chamber. A translation section is provided at the end of the guide post's sliding motion, limiting its upward and downward position when it reaches the end point, ensuring that the upper and lower chambers remain locked and prevent relative rotation.

[0030] The guide groove 401 has a notch 5 at its starting end for the guide post 402 to enter. The guide post 402 enters the guide groove 401 through the notch 5 and can slide within the guide groove 401. It is then rotated to the translation section 4011 at the end of the guide groove 401 to limit its position and complete the tightening action. The operation is simple, and only requires inserting the upper cavity into the lower cavity and tightening it. Compared to the traditional lock structure that requires unlocking a lock on each side of the cavity, the utility model opens and closes faster, greatly improving the efficiency of sample replacement. In addition, since the cavity is integrated with the rotating structure, there is no need to set a lock outside the cavity, which reduces the overall volume of the cavity.

[0031] Preferably, there are three guide grooves 401 and three corresponding guide posts 402. A plurality of guide grooves and matching guide posts are provided, evenly distributed on the upper and lower cavities. After rotation, the guide grooves match the guide posts, making the upper and lower cavities fit more tightly.

[0032] The upper end of the upper cavity is provided with a rotating shaft 6 for facilitating rotation and a fixing bolt 7 for fixing the rotating shaft. The rotating shaft 6 is provided to facilitate manual operation to rotate the upper cavity 1.

[0033] A sealing ring 8 is provided between the sealed cavity 3 and the lower cavity 2, and a recess 9 for mounting the sealing ring is provided on the lower cavity 2. The sealing ring is an O-ring. When the upper cavity 1 rotates downward, the sealing ring 8 is compressed, achieving a vacuum seal and making the upper and lower cavities more tightly connected and less likely to fall off.

[0034] The inner wall of the upper cavity 1 is provided with a groove 10 that cooperates with the sealing cavity 3. The sealing cavity is rotatably arranged in the upper cavity 1. Since the sealing cavity 3 can rotate in the upper cavity 1, and the friction between the sealing cavity 3 and the sealing ring is relatively large, the O-ring will not be pulled out of the groove of the lower cavity due to friction during the rotation of the upper cavity.

[0035] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mounting structure for a pressure decay test chamber, characterized by: The invention comprises an upper cavity (1), a lower cavity (2), and a sealed cavity (3) clamped inside the upper cavity. The upper cavity (1) is covered on the lower cavity (2). A rotating structure (4) is provided between the upper cavity (1) and the lower cavity (2) for enabling the upper and lower cavities to rotate relative to each other and driving the upper and lower cavities to be locked.

2. The mounting structure for a pressure decay method test chamber according to claim 1, wherein: The rotating structure (4) includes at least one guide groove (401) provided on the side wall of the upper cavity (1) for the upper cavity to rotate downward and be locked with the lower cavity; and also includes at least one guide column (402) provided on the side wall of the lower cavity (2) and capable of sliding in the guide groove and cooperating with the upper cavity to rotate and lock, wherein the guide column is provided on the outer wall of the lower cavity and protrudes outward.

3. The mounting structure for a pressure decay method test chamber according to claim 1, wherein: The rotating structure (4) includes at least one guide groove (401) provided on the side wall of the lower cavity (2) for the upper cavity to rotate downward and is locked with the lower cavity; and also includes at least one guide column (402) provided on the side wall of the upper cavity (1) and slidingly cooperating with the lower cavity to rotate and lock, wherein the guide column is provided on the inner wall of the upper cavity and protrudes inward.

4. The mounting structure for a pressure decay method test chamber according to claim 2 or 3, wherein: The guide groove (401) comprises a translation section (4011) and a lifting section (4012).

5. The mounting structure for a pressure decay method test chamber according to claim 2 or 3, wherein: The starting end of the guide groove (401) is provided with a notch (5) for the guide post (402) to enter the guide groove.

6. The mounting structure for a pressure decay method test chamber according to claim 2 or 3, wherein: There are three guide grooves (401) and three guide pillars (402) respectively.

7. The mounting structure for a pressure decay method test chamber according to claim 2 or 3, wherein: The upper cavity (1) or the lower cavity (2) is provided with a mounting hole for mounting the guide column (402).

8. The mounting structure for a pressure decay method test chamber according to claim 1, wherein: The upper end of the upper cavity is provided with a rotating shaft (6) for facilitating rotation and a fixing bolt (7) for fixing the rotating shaft.

9. The mounting structure for a pressure decay method test chamber according to claim 1, wherein: A sealing ring (8) is provided between the sealing cavity (3) and the lower cavity (2), and a sink (9) for installing the sealing ring is provided on the lower cavity (2).

10. The mounting structure for a pressure decay method test chamber according to claim 1, wherein: The inner wall of the upper cavity (1) is provided with a clamping groove (10) that cooperates with the sealing cavity (3), and the sealing cavity is rotatably arranged in the upper cavity (1).

Images