Rivet nut air tightness detection tool

Abstract

The utility model discloses a rivet nut air tightness detection tool which comprises a detection bin which is of a hollow cylindrical structure, a cover plate is fixed above the detection bin, and a detachable annular base is arranged below the detection bin. A rivet nut mounting plate is fixed between the annular base and the detection bin; and a plurality of rivet nut detection holes are formed in the rivet nut mounting plate. According to the utility model, the detachable rivet nut mounting plate is arranged below the detection bin, and different rivet nut mounting plates can be replaced according to the specification of the rivet nut to be detected, so that the universality is strong; the air tightness of the rivet nut is tested before the rivet nut leaves a factory, so that the subsequent equipment quality can be prevented from being influenced.

Description

Technical Field

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

[0002] Rivet nuts, also known as pull rivet nuts and pull caps, are used in the fastening of various metal plates, pipes and other manufacturing industries. They are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations, etc. They are developed to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes, easy deformation of base materials during welding, and easy slipping of tapping internal threads. It does not require tapping internal threads, does not require welding nuts, has strong riveting efficiency, and is easy to use.

[0003] Some precision equipment needs to be tested for air tightness after assembly. Therefore, rivet nuts should also be tested for air tightness before leaving the factory to avoid affecting the quality of subsequent equipment. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a rivet nut air tightness detection tool, which can perform air tightness detection on the rivet nut and improve the quality of the rivet nut.

[0005] To this end, the technical solution of the utility model is: a rivet nut air tightness detection tool, including a detection chamber, the detection chamber is a hollow cylindrical structure, a cover plate is fixed on the top, and a detachable annular base is provided at the bottom; a rivet nut mounting plate is fixed between the annular base and the detection chamber, and a plurality of rivet nut detection holes are provided on the rivet nut mounting plate.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: annular sealing grooves are provided on the upper and lower sides of the detection chamber, and a sealing ring is provided in the annular sealing groove, and the detection chamber is tightly fitted with the cover plate and the rivet nut mounting plate.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of first assembly holes are provided under the detection chamber, and the first assembly holes are located on the outside of the annular sealing groove; a plurality of first through holes and second through holes are respectively provided at the edges of the annular base and the rivet nut mounting plate, and the first bolt passes through the annular base and the rivet nut mounting plate and is locked and fixed with the first assembly hole.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of second assembly holes are provided above the detection chamber, the second assembly holes are located outside the annular sealing groove, a third through hole is provided on the cover plate, and the second bolt fixes the cover plate to the detection chamber.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the interior of the detection chamber is a closed space, and a vent hole is provided on the side of the detection chamber, and the vent hole is connected to the interior of the detection chamber.

[0010] When in use, select a suitable rivet nut mounting plate according to the specifications of the rivet nuts to be tested, select a test sample from the rivet nuts to be tested, and then fix them on the various rivet nut detection holes of the rivet nut mounting plate in turn, and lock and fix the bolts matching the rivet nuts; then disassemble the annular base, place the rivet nut mounting plate between the annular base and the bottom of the detection chamber, and then lock it with the first bolt, so that the rivet nut mounting plate fits tightly with the detection chamber, and a closed airtight detection space is formed in the detection chamber; then connect the inflation port of the inflation device to the vent hole on the side of the detection chamber, fill the detection chamber with gas, and then judge the airtightness of the rivet nut by conventional methods such as watertightness test and air pressure test.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a detachable rivet nut mounting plate is arranged under the detection chamber, and different rivet nut mounting plates can be replaced according to the specifications of the rivet nuts to be tested, so the utility model has strong versatility; a plurality of detection holes are arranged on the rivet nut mounting plate, so a plurality of rivet nuts can be tested at the same time, thereby improving the detection efficiency; and an air tightness test is performed on the rivet nuts before they leave the factory, so as to avoid affecting the quality of subsequent equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , Figure 2 It is a schematic diagram of the structure of the utility model;

[0013] Figure 3 It is an exploded view of the parts of the utility model.

[0014] Marked in the figure are: detection chamber 1, annular sealing groove 11, second assembly hole 12, vent hole 13, cover plate 2, third through hole 21, annular base 3, first through hole 31, sealing ring 4, second bolt 5, rivet nut mounting plate 6, rivet nut detection hole 61, second through hole 62, first bolt 7. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0017] See the attached drawings. The rivet nut air tightness detection tool described in this embodiment includes a detection chamber 1, which is a hollow cylindrical structure, with a cover plate 2 fixed on the top and a detachable annular base 3 at the bottom; an annular sealing groove 11 is provided on both the upper and lower sides of the detection chamber 1, and a sealing ring 4 is provided in the annular sealing groove; a plurality of second assembly holes 12 are provided on the top of the detection chamber 1, and the second assembly holes 12 are located outside the annular sealing groove 11, and a third through hole 21 is provided on the cover plate 2, and a second bolt 5 passes through the third through hole 21 and is threadedly matched with the second assembly hole 12 to fix the cover plate 2 on the detection chamber 1.

[0018] A rivet nut mounting plate 6 is fixed between the annular base 3 and the detection chamber 1, and a plurality of rivet nut detection holes 61 are provided on the rivet nut mounting plate 6. A plurality of first assembly holes are provided below the detection chamber 1, and the first assembly holes are located outside the annular sealing groove; a plurality of first through holes 31 and second through holes 62 are respectively provided at the edges of the annular base 3 and the rivet nut mounting plate 6, and a first bolt 7 passes through the first through hole 31 on the annular base 3 and the second through hole 62 on the rivet nut mounting plate, and is locked and fixed with the first assembly hole, so that the annular base 3 and the rivet nut mounting plate 6 are firmly fixed below the detection chamber 1.

[0019] The cover plate 2, the rivet nut mounting plate 6 and the upper and lower ends of the detection chamber 1 are tightly fixedly connected, so that the interior of the detection chamber 1 is a closed space. A vent hole 13 is provided on the side of the detection chamber 1, and the vent hole 13 is connected to the interior of the detection chamber.

[0020] When using:

[0021] 1) Select a suitable rivet nut mounting plate 6 according to the specifications of the rivet nut to be tested, and then select a test sample from the rivet nut to be tested;

[0022] 2) fix them on the rivet nut detection holes 61 of the rivet nut mounting plate 6 in sequence, and tighten the bolts matched with the rivet nuts;

[0023] 3) Disassemble the annular base 3, place the rivet nut mounting plate 6 between the annular base 3 and the detection chamber 1, and then tighten it with the first bolt 7, so that the rivet nut mounting plate 6 is tightly fitted with the detection chamber 1, and a closed airtight detection space is formed in the detection chamber;

[0024] 4) Connect the inflation port of the inflation device to the vent hole 13 on the side of the inspection chamber 1, fill the inspection chamber 1 with gas, and then judge the air tightness of the rivet nut by conventional methods such as water tightness test and air pressure test.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A rivet nut air tightness detection tool, characterized by: It includes a detection chamber, which is a hollow cylindrical structure with a cover plate fixed on the top and a detachable annular base at the bottom; a rivet nut mounting plate is fixed between the annular base and the detection chamber, and a plurality of rivet nut detection holes are arranged on the rivet nut mounting plate.

2. A rivet nut air tightness detection tool as claimed in claim 1, characterized in that: The upper and lower sides of the detection chamber are both provided with annular sealing grooves, and a sealing ring is arranged in the annular sealing groove. The detection chamber is tightly fitted with the cover plate and the rivet nut mounting plate.

3. A rivet nut air tightness detection tool as claimed in claim 2, characterized in that: A plurality of first assembly holes are provided below the detection chamber, and the first assembly holes are located outside the annular sealing groove; a plurality of first through holes and second through holes are respectively provided at the edges of the annular base and the rivet nut mounting plate, and the first bolt passes through the annular base and the rivet nut mounting plate and is locked and fixed with the first assembly hole.

4. A rivet nut air tightness detection tool as claimed in claim 2, characterized in that: A plurality of second assembly holes are arranged above the detection chamber, the second assembly holes are located outside the annular sealing groove, a third through hole is arranged on the cover plate, and the cover plate is fixed to the detection chamber by second bolts.

5. A rivet nut air tightness detection tool as claimed in claim 1, characterized in that: The interior of the detection chamber is a closed space, and a vent hole is provided on the side of the detection chamber, and the vent hole is connected to the interior of the detection chamber.

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