Rivet nut airtightness detection tool

Abstract

The utility model discloses a rivet nut airtightness detection tool comprising a detection cylinder, a sealing groove is arranged in the detection cylinder, the top of the sealing groove is fixedly connected with a sealing gasket, the surface of the sealing gasket is provided with a detection gap, the top edge of the detection cylinder is provided with a matching groove, and a detection cover plate is slidably arranged above the matching groove. The top of the detection cover plate is slidably provided with an adjusting cover plate, the surfaces of the detection cover plate and the adjusting cover plate are provided with positioning holes, one side of each positioning hole is provided with a pipe thread joint, the surface of the adjusting cover plate is in threaded connection with an adjusting bolt, and the tail end of the adjusting bolt is rotatably connected with the surface of the detection cover plate. The beneficial effects of the utility model are that the rivet nut standard component to be detected is fixedly installed in the positioning holes on the detection cover plate and the adjusting cover plate, the detection cover plate and the adjusting cover plate are installed on the detection cylinder in a sealing manner after the detection cover plate and the adjusting cover plate are connected with the airtight instrument through the pipe screwed joint, and the efficient and rapid airtightness detection of the rivet nut standard component is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet nuts, in particular to an airtightness detection tool for rivet nuts. Background Art

[0002] With the rapid development of the new energy industry, especially the continuous progress in the field of electric vehicles, energy storage systems and power battery packs have higher and higher requirements for sealing. Good sealing performance can effectively prevent external factors such as water vapor and dust from affecting the internal part of the battery, thereby ensuring the safety and service life of the battery system. For this reason, rivet nuts with good sealing performance are widely used in these applications. This type of nut can not only provide a reliable connection, but also ensure the airtightness of the connection.

[0003] In order to ensure the reliability of these nuts in actual applications, they need to be rigorously tested for sealing performance before being installed in the final product. However, there is currently a lack of sealing testing equipment specifically for small rivet nut standard parts on the market. Most existing testing methods and technologies are either too complicated and costly, or cannot meet the diverse needs of different types of rivet nuts. In addition, traditional manual inspection methods are inefficient and prone to errors, making it difficult to adapt to the high-precision and high-speed requirements of modern manufacturing. No effective solutions have been proposed to address the problems in related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a rivet nut air tightness detection tool to overcome the above-mentioned technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A rivet nut air tightness detection tool comprises a detection cylinder, a sealing groove is formed inside the detection cylinder, a sealing gasket is fixedly connected to the top of the sealing groove, a detection notch is formed on the surface of the sealing gasket, a matching groove is formed on the top edge of the detection cylinder, a detection cover is slidably mounted above the matching groove, an adjustment cover is slidably mounted on the top of the detection cover, positioning holes are formed on the surfaces of the detection cover and the adjustment cover, a pipe threaded joint is provided on one side of the positioning hole, an adjusting bolt is threadedly connected to the surface of the adjustment cover, and the end of the adjusting bolt is rotatably connected to the surface of the detection cover.

[0007] Furthermore, in order to achieve sealing installation between the detection cover and the detection tube, a sealing ring is fixedly installed inside the matching groove, and a sealing groove is opened on the surface of the sealing ring, and the sealing groove is sealed with the edge bottom surface of the detection cover.

[0008] Furthermore, in order to realize the air tightness detection of standard rivet nuts of different sizes, the number of positioning holes on the surface of the detection cover plate and the adjustment cover plate is eight, and the aperture size of each positioning hole is different.

[0009] Furthermore, in order to realize the through connection between the end of the pipe threaded joint and the inside of the detection tube, a sliding groove is opened on the surface of the sealing gasket, and the end of the pipe threaded joint cooperates with the sliding groove.

[0010] Furthermore, in order to achieve air tightness between the detection cover and the detection tube during detection, the top of the sealing gasket is tightly attached to the bottom surface of the detection cover to block and seal the positioning hole on the detection cover.

[0011] Furthermore, in order to facilitate the transportation and movement of the detection tooling, support handles are fixedly installed on both sides of the surface of the detection cylinder.

[0012] The beneficial effects of the utility model are:

[0013] 1. After the rivet nut standard parts to be tested are riveted, they are fixedly installed in the positioning holes of the same size as the standard parts on the detection cover and the adjustment cover. Then the rivet standard parts, the detection cover and the adjustment cover are placed in the test box to simulate the changes in the sealing performance of the rivet standard parts under various environments. The simulated detection cover is connected to the airtightness tester through a pipe thread joint, and the detection cover and the adjustment cover are sealed and installed on the detection tube. The airtightness test of the rivet nut standard parts can be carried out efficiently and quickly through the airtightness tester.

[0014] 2. When it is necessary to perform air tightness test on rivet standard parts of different sizes and lengths, the positioning holes of different aperture sizes on the surface of the adjustment cover and the detection cover are selected for installation and testing, and the distance between the adjustment cover and the detection cover can be changed by screwing the adjusting bolt, so as to realize the rivet fixation of standard parts of different lengths on the detection cover. After riveting and fixing, the detection cover and the adjustment cover are installed on the surface of the detection tube, so that the sealing gasket on the top of the detection tube seals the positioning holes where the rivet standard parts are not installed. The air tightness test of the standard parts to be tested can be carried out by the airtightness tester, which effectively increases the applicability of the detection tooling when facing different models of standard parts, and the adjustment range can be further increased by replacing different covers. The detection tube can be reused, and only the cover needs to be replaced according to different rivet standard parts, which greatly reduces the overall testing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the surface structure of a rivet nut air tightness detection tool according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the installation structure of the detection tube in the rivet nut air tightness detection tool according to the embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal cross-sectional structure of a detection cover plate and an adjustment cover plate in a rivet nut air tightness detection tool according to an embodiment of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the unfolded structure of the rivet nut air tightness detection tool according to the embodiment of the utility model.

[0020] In the figure:

[0021] 1. Detection tube; 2. Sealing groove; 3. Sealing gasket; 4. Detection notch; 5. Matching groove; 6. Detection cover; 7. Adjustment cover; 8. Positioning hole; 9. Pipe threaded joint; 10. Adjustment bolt; 11. Sealing ring; 12. Sealing groove; 13. Sliding groove; 14. Support handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] According to an embodiment of the utility model, a rivet nut air tightness detection tool is provided.

[0024] Embodiment 1:

[0025] like Figure 1-Figure 4As shown, according to the embodiment of the utility model, the rivet nut airtight detection tool comprises a metal cylindrical detection tube 1, a sealing groove 2 is opened inside the detection tube 1, a rubber sealing gasket 3 is fixedly connected to the top of the sealing groove 2, a detection notch 4 is opened on the surface of the sealing gasket 3, a matching groove 5 is opened on the top edge of the detection tube 1, a detection cover 6 is slidably installed above the matching groove 5, an adjustment cover 7 is slidably installed on the top of the detection cover 6, eight positioning holes 8 with different apertures are opened on the surfaces of the detection cover 6 and the adjustment cover 7, which are used to install rivet standard parts of different sizes; a pipe threaded joint 9 is provided on one side of the positioning hole 8, which is used to achieve fixed connection with the airtightness instrument during detection; two pairs of adjusting bolts 10 are threadedly connected to the surface of the adjusting cover 7, and the ends of the adjusting bolts 10 are rotatably connected to the surface of the detection cover 6, and the distance between the adjusting cover 7 and the detection cover 6 is adjusted by screwing each adjusting bolt 10, thereby realizing the installation and detection of rivet nut standard parts to be detected of different lengths.

[0026] like Figure 1-Figure 4 As shown, a rubber sealing ring 11 is fixedly installed inside the matching groove 5, and a sealing groove 12 is opened on the surface of the sealing ring 11. The sealing groove 12 is sealed with the bottom surface of the edge of the detection cover 6 to achieve a sealed connection between the detection cover 6 and the detection tube 1; a sliding groove 13 is opened on the surface of the sealing gasket 3, and the end of the pipe threaded joint 9 is matched with the sliding groove 13, so that after the detection cover 6 is installed on the top of the detection tube 1, the end of the pipe threaded joint 9 can pass through the sealing gasket 3 and be connected with the sealing groove 2; after the detection cover 6 is installed on the top of the detection tube 1, the top of the sealing gasket 3 is tightly attached to the bottom surface of the detection cover 6, and after adjustment, the sealing gasket 3 can block and seal the positioning hole 8 on the detection cover 6 where the rivet standard part is not installed, so that the detection notch 4 is located below the rivet standard part to be detected; support handles 14 are fixedly installed on both sides of the surface of the detection tube 1, which are used to facilitate the rapid transportation and movement of the detection tooling through the support handles 14.

[0027] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0028] To sum up, with the help of the above-mentioned technical scheme of the utility model, in actual use, the standard rivet nut to be tested is placed in the positioning hole 8 corresponding to its size, and the distance between the adjusting cover 7 and the detection cover 6 is changed by screwing the adjusting bolt 10, so that the rivet part of the standard rivet nut to be tested can pass through the positioning hole 8 on the detection cover 6, and the standard rivet nut to be tested is fixed on the detection cover 6 and the adjusting cover 7 after riveting, and then the standard rivet nut, the detection cover 6 and the adjusting cover 7 are placed in a test box to simulate the changes in the sealing performance of the standard rivet nut under various environments. The simulated detection cover 6 is connected to the airtightness tester through the pipe threaded joint 9, and the detection cover 6 and the adjusting cover 7 are sealed and installed on the detection tube 1, and the end of the standard rivet nut to be tested passes through the detection notch 4 on one side of the sealing gasket 3, and the airtightness test of the standard part to be tested is completed by the airtightness tester.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rivet nut air tightness detection tool, characterized in that: The invention comprises a detection cylinder (1), wherein a sealing groove (2) is provided inside the detection cylinder (1), a sealing gasket (3) is fixedly connected to the top of the sealing groove (2), a detection notch (4) is provided on the surface of the sealing gasket (3), a matching groove (5) is provided on the top edge of the detection cylinder (1), a detection cover (6) is slidably installed above the matching groove (5), an adjustment cover (7) is slidably installed on the top of the detection cover (6), a positioning hole (8) is provided on the surface of the detection cover (6) and the adjustment cover (7), a pipe threaded joint (9) is provided on one side of the positioning hole (8), an adjustment bolt (10) is threadedly connected to the surface of the adjustment cover (7), and the end of the adjustment bolt (10) is rotatably connected to the surface of the detection cover (6).

2. The rivet nut air tightness detection tool according to claim 1 is characterized in that: A sealing ring (11) is fixedly installed inside the matching groove (5), a sealing groove (12) is formed on the surface of the sealing ring (11), and the sealing groove (12) is sealingly matched with the bottom surface of the edge of the detection cover plate (6).

3. The rivet nut air tightness detection tool according to claim 1 is characterized in that: There are eight positioning holes (8) on the surfaces of the detection cover plate (6) and the adjustment cover plate (7), and the aperture sizes of the positioning holes (8) are all different.

4. The rivet nut air tightness detection tool according to claim 1 is characterized in that: A sliding groove (13) is formed on the surface of the sealing gasket (3), and the end of the pipe threaded joint (9) matches the sliding groove (13).

5. The rivet nut air tightness detection tool according to claim 1 is characterized in that: The top of the sealing gasket (3) is tightly attached to the bottom surface of the detection cover plate (6), thereby blocking and sealing the positioning hole (8) on the detection cover plate (6).

6. The rivet nut air tightness detection tool according to claim 1, characterized in that: Support handles (14) are fixedly mounted on both sides of the surface of the detection cylinder (1).

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