一种密封测试机构

Abstract

本实用新型涉及一种密封测试机构，包括密封件，呈环形，所述密封件的环形区域用于供待测产品穿设其中；驱动件，能沿密封件的轴向往复移动，所述驱动件能挤压密封件使密封件径向变形，从而使得密封件与待测产品密封接触；壳体，内部具有供密封件和驱动件容置于内的空腔，所述壳体上设有均与空腔相连通的穿孔、第一通孔和第二通孔，所述穿孔和密封件的环形区域在轴向上对应，所述穿孔用于供待测产品穿过进入密封件的环形区域中，所述第一通孔和第二通孔均供气流通过或者供驱动气流的设备插入，所述第一通孔用于和待测产品相连通以检测其性能，所述第二通孔用于供进入的气流推动驱动件朝向密封件的方向移动。本实用新型对待测产品的密封性能好。

Claims

1. A sealing test mechanism, comprising: The sealing element (1) is annular, and the annular area (11) of the sealing element (1) is used for the product to be tested (4) to pass through it; The driving element (2) can reciprocate along the axial direction of the seal (1). The driving element (2) can squeeze the seal (1) to deform the seal (1) radially, so that the seal (1) and the product to be tested (4) are in sealed contact. characterized in that Also includes The housing (3) has an internal cavity (31) for housing the sealing element (1) and the driving element (2). The housing (3) is provided with a through hole (32), a first through hole (33) and a second through hole (34) that are all connected to the cavity (31). The through hole (32) and the annular area (11) of the sealing element (1) are axially corresponding. The through hole (32) is used for the product to be tested (4) to pass through and enter the annular area (11) of the sealing element (1). The first through hole (33) and the second through hole (34) are both for airflow to pass through or for the device (6) to drive the airflow to be inserted. The first through hole (33) is used to connect with the product to be tested (4) to detect its performance. The second through hole (34) is used for the incoming airflow to push the driving element (2) to move toward the sealing element (1).

2. The sealed test mechanism of claim 1, wherein: The drive member (2) is provided with a groove (21) corresponding to the annular area (11) of the seal member (1), and the groove (21) and the first through hole (33) are connected by an airflow channel (22).

3. The sealed test mechanism of claim 1, wherein: A sealing ring (5) is provided between the outer wall surface of the drive component (2) and the wall surface of the cavity (31).

4. The sealed test mechanism of any one of claims 1-3, wherein: The housing (3) includes a top cover (35), a cylindrical body (36) and a base (37). The cylindrical body (36) is open at both ends. The base (37) is connected to the first end of the cylindrical body (36) and covers the port of the first end of the cylindrical body (36). The top cover (35) includes an annular body (351) and a flange (352) extending inward from the periphery of the annular body (351). The area enclosed by the flange (352) is the perforation (32). The annular body (351) is inserted into the second end of the cylindrical body (36). Both the drive member (2) and the seal member (1) are disposed in the cylinder (36), and the seal member (1) is squeezed between the drive member (2) and the flange (352).

5. The sealed test mechanism of claim 4, wherein: The second through hole (34) is provided on the base (37), and the base (37) is provided with a flow channel (38) connecting the second through hole (34) and the cylinder (36).

6. The sealing test mechanism according to claim 4, characterized in that: The annular body (351) and the cylindrical body (36) are threaded together.

7. The sealed test mechanism of claim 4, wherein: The cylinder (36) is partially inserted into the base (37), and the two are threaded together.

Images