Air tightness detection experiment table for quick connector

Abstract

The utility model relates to an air tightness detection experiment table for a quick-plug connector, which belongs to the technical field of quick-plug connector detection and comprises a detection box, an air tightness detection mechanism is arranged on the detection box and comprises an air pump and a pressure gauge which are fixedly mounted on the upper surface of the detection box. The air outlet end of the air pump is fixedly provided with an air inlet bent pipe penetrating into the detection box. According to the air tightness detection experiment table for the quick-plug connector, the air pump and the pressure gauge are arranged on the detection box, the pressure in the quick-plug connector can be increased by using the air pump during use, and the pressure in the quick-plug connector is monitored through the pressure gauge, so that the air tightness of the quick-plug connector can be judged according to the change of the pressure in the quick-plug connector; high temperature can be generated in the detection box through the heating plate and the heating pipe, then the air tightness of the quick-plug connector used in a high-temperature environment can be simulated, use is convenient and fast, and meanwhile the detection accuracy of the quick-plug connector can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-connect joint detection, in particular to an airtightness detection test bench for quick-connect joints. Background Technique

[0002] A quick-connect joint is a fast connection device used to connect pipelines. It has the advantages of simple structure, rapid connection, and convenient disassembly. In pipeline systems, quick-connect joints are widely used in various occasions, such as water pipes, gas pipes, oil pipes, etc. The working principle of a quick-connect joint is to achieve connection through the friction force between the plug and the socket. After the plug is inserted into the socket, a pressing or locking device is used to ensure the stability of the connection. In order to ensure the airtightness of the quick-connect joint, it is necessary to detect the quick-connect plug after it is produced.

[0003] Chinese Patent CN209166729U discloses an airtightness detection test bench for quick-connect joints, including support columns, cylindrical protrusions, and quick-connect joints; the columns are square tube structures, a total of four, welded to the four corners of the top side of the bottom plate; the top plate is a rectangular plate structure, welded to the top sides of the four columns; the air pipe passes through the top plate and the top sheet from top to bottom and extends below the top sheet; the bottom sheet is a square plate structure, and four support columns with square tube structures are welded to the four corners of its top side; the top sheet is a square sheet structure, with the same size as the bottom sheet, welded to the top sides of the four support columns; through observing the state of the quick-connect joint immersed in water under the rated pressure, it is easy to check whether bubbles will be generated, so as to draw a conclusion on whether it has qualified airtightness. The detection process is smooth, the operation is simple and fast, the use is convenient, the detection efficiency is high, the detection accuracy is high, the cost is low, and it is convenient for processing and manufacturing.

[0004] The above patent improves the disadvantages that the existing airtightness detection instruments are relatively inconvenient to operate when in use, and the method of connecting the air circuit and sensing air leakage commonly used in the production workshop, due to the different sensitivities of different people, some people cannot feel small air leakage and the detection is also relatively inaccurate. This embodiment provides another implementation scheme for the problems proposed in the above patent and makes further improvements. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides an airtightness detection test bench for quick-connect joints, which has the advantage of good detection effect, and solves the problems that the existing airtightness detection instruments are relatively inconvenient to operate when in use, and the method of connecting the air circuit and sensing air leakage commonly used in the production workshop, due to the different sensitivities of different people, some people cannot feel small air leakage and the detection is also relatively inaccurate.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An airtightness detection test bench for a quick-connect fitting, comprising a detection box, on which an airtightness detection mechanism is provided;

[0007] The airtightness detection mechanism includes an air pump and a pressure gauge fixedly installed on the upper surface of the detection box. The air outlet end of the air pump is fixedly installed with an intake elbow that penetrates into the detection box. One end of the intake elbow away from the air pump is fixedly installed with a first connector. One end of the pressure gauge is fixedly installed with a second connector that penetrates into the detection box. A grid plate is fixedly installed inside the detection box. A heating plate is fixedly installed on the upper surface of the grid plate. An installation plate is fixedly installed on the lower surface of the inner cavity of the detection box. A groove is formed on the upper surface of the installation plate. A heating tube is fixedly installed on the lower surface of the inner cavity of the groove.

[0008] Further, a plurality of electric heating wires are fixedly installed inside the heating plate, and the plurality of electric heating wires are evenly distributed inside the heating plate.

[0009] Further, the number of the heating tubes is three, and adjacent two heating tubes are evenly distributed on the lower surface of the inner cavity of the groove.

[0010] Further, two supporting plates are fixedly installed on the upper surface of the grid plate, and clamping grooves are formed on the surfaces of the supporting plates.

[0011] Further, a heat insulation layer is fixedly installed on the inner cavity surface of the detection box, and the thickness of the heat insulation layer is not less than one centimeter.

[0012] Further, a sound insulation cover is fixedly installed on the upper surface of the detection box, and the air pump is located inside the sound insulation cover.

[0013] Further, a second intake elbow that penetrates to the outer surface of the sound insulation cover is fixedly installed at the air intake end of the sound insulation cover, and the opening of the second intake elbow faces downward.

[0014] Further, a dust-proof net is fixedly installed at one end of the second intake elbow away from the air pump.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] The airtightness detection test bench for the quick connector is provided with an air pump and a pressure gauge on the detection box. During use, the air pump can be used to increase the pressure inside the quick connector, and the pressure inside the quick connector can be monitored through the pressure gauge. Thus, the airtightness of the quick connector can be judged by the change in the pressure inside the quick connector. The heating plate and the heating tube can generate high temperature inside the detection box, and then the airtightness of the quick connector when used in a high-temperature environment can be simulated. It is convenient and fast to use, and at the same time, the detection accuracy of the quick connector can be improved, solving the problems that the existing airtightness detection instruments are inconvenient to operate during use, and the method of connecting the air circuit and sensing air leakage commonly used in the production workshop is inaccurate in detection because different people have different sensitivities and some people can't detect small air leaks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic internal view of the detection box of the structure of the present utility model;

[0018] Figure 2 It is a schematic view of the heating tube of the structure of the present utility model;

[0019] Figure 3 It is a schematic internal view of the heating plate of the structure of the present utility model;

[0020] Figure 4 It is a schematic view of the mounting plate of the structure of the present utility model;

[0021] Figure 5 It is a schematic view of the support plate of the structure of the present utility model.

[0022] In the figure: 1, detection box; 2, air pump; 3, pressure gauge; 4, intake elbow; 5, first connector; 6, second connector; 7, grid plate; 8, heating plate; 9, mounting plate; 10, groove; 11, heating tube; 12, heating wire; 13, support plate; 14, card slot; 15, heat insulation layer; 16, sound insulation cover; 17, second intake elbow; 18, dust filter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5, An airtightness detection test bench for a quick-connect fitting in this embodiment includes a detection box 1. An airtightness detection mechanism is provided on the detection box 1. The airtightness detection mechanism includes an air pump 2 and a pressure gauge 3 fixedly installed on the upper surface of the detection box 1. The air outlet end of the air pump 2 is fixedly installed with an intake elbow 4 that penetrates into the detection box 1. A first connector 5 is fixedly installed at one end of the intake elbow 4 away from the air pump 2. One end of the pressure gauge 3 is fixedly installed with a second connector 6 that penetrates into the detection box 1. A grid plate 7 is fixedly installed inside the detection box 1. A heating plate 8 is fixedly installed on the upper surface of the grid plate 7. A plurality of heating wires 12 are fixedly installed inside the heating plate 8. The plurality of heating wires 12 are evenly distributed inside the heating plate 8. It is convenient to heat the heating plate 8 through the plurality of heating wires 12, and it is convenient to heat the quick-connect fitting through the heating plate 8. An installation plate 9 is fixedly installed on the lower surface of the inner cavity of the detection box 1. A groove 10 is opened on the upper surface of the installation plate 9. A heating tube 11 is fixedly installed on the lower surface of the inner cavity of the groove 10. The number of the heating tubes 11 is three. Adjacent two heating tubes 11 are evenly distributed on the lower surface of the inner cavity of the groove 10. The heating tubes 11 can create a high-temperature environment inside the detection box 1, which is convenient to simulate the airtightness of the quick-connect fitting in a high-temperature environment.

[0025] Two support plates 13 are fixedly installed on the upper surface of the grid plate 7. Card slots 14 are opened on the surfaces of the support plates 13. It is convenient to fix the quick-connect fitting on the grid plate 7 through the support plates 13 and the card slots 14. A heat insulation layer 15 is fixedly installed on the inner cavity surface of the detection box 1. The thickness of the heat insulation layer 15 is not less than one centimeter. By setting the heat insulation layer 15 inside the detection box 1, it is beneficial to reduce the heat loss inside the detection box 1. A sound insulation cover 16 is fixedly installed on the upper surface of the detection box 1. The air pump 2 is located inside the sound insulation cover 16. It is convenient to isolate the air pump 2 through the sound insulation cover 16, which is beneficial to reduce the noise transmission when the air pump 2 works. The air intake end of the sound insulation cover 16 is fixedly installed with a second intake elbow 17 that penetrates to the outer surface of the sound insulation cover 16. The opening of the second intake elbow 17 faces downward, which is convenient for the air pump 2 to intake air. A dust-proof net 18 is fixedly installed at one end of the second intake elbow 17 away from the air pump 2. By setting the dust-proof net 18 on the second intake elbow 17, dust or sundries can be prevented from entering the second intake elbow 17, which is beneficial to prevent the second intake elbow 17 from being blocked.

[0026] It should be noted that the heat insulation layer 15 in this embodiment is made of fiberglass material.

[0027] It should be noted that the structure of the detection box 1 in this embodiment has an opening on the front surface and a sealing door adapted to the opening.

[0028] The working principle of the above embodiment is:

[0029] In use, both ends of the quick-connect fitting are connected through the first connector 5 and the second connector 6. Then, the quick-connect fitting is clamped in the card slots 14 on the two pallets 13. Next, the air pump 2 is started, and pressure is applied to the quick-connect fitting through the air pump 2. The pressure gauge 3 is used to detect the pressure inside the quick-connect fitting. Then, the heating plate 8 is heated by the heating wire 12, and the heating tube 11 generates heat, so that a high-temperature environment is formed inside the detection box 1, thereby simulating the working state of the quick-connect fitting in a high-temperature environment. After pressure is applied to the quick-connect fitting, the quick-connect fitting is allowed to stand for a period of time. When the pressure value of the pressure gauge 3 is less than the applied pressure, it is determined that the airtightness of the quick-connect fitting is poor. When the pressure value of the pressure gauge 3 is equal to or greater than the applied pressure, it is determined that the airtightness of the quick-connect fitting is good.

[0030] The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An airtightness detection test bench for a quick-insert connector, including a detection box (1), characterized in that: An airtight detection mechanism is provided on the detection box (1). The airtight detection mechanism includes an air pump (2) and a pressure gauge (3) fixedly installed on the upper surface of the detection box (1). The air outlet end of the air pump (2) is fixedly installed with an intake elbow (4) penetrating into the detection box (1). One end of the intake elbow (4) far from the air pump (2) is fixedly installed with a first connector (5). One end of the pressure gauge (3) is fixedly installed with a second connector (6) penetrating into the detection box (1). A grid plate (7) is fixedly installed inside the detection box (1). A heating plate (8) is fixedly installed on the upper surface of the grid plate (7). An installation plate (9) is fixedly installed on the lower surface of the inner cavity of the detection box (1). A groove (10) is formed on the upper surface of the installation plate (9). A heating tube (11) is fixedly installed on the lower surface of the inner cavity of the groove (10).

2. The airtightness detection test bench for a quick-connect fitting according to claim 1, characterized in that: A plurality of electric heating wires (12) are fixedly installed inside the heating plate (8), and the plurality of electric heating wires (12) are evenly distributed inside the heating plate (8).

3. The airtightness detection test bench for a quick-connect fitting according to claim 1, characterized in that: The number of the heating tubes (11) is three, and adjacent two heating tubes (11) are evenly distributed on the lower surface of the inner cavity of the groove (10).

4. The airtightness detection test bench for a quick connector according to claim 1, characterized in that: Two support plates (13) are fixedly installed on the upper surface of the grid plate (7), and clamping grooves (14) are formed on the surfaces of the support plates (13).

5. The airtightness detection test bench for a quick connector according to claim 1, characterized in that: A heat insulation layer (15) is fixedly installed on the inner surface of the inner cavity of the detection box (1), and the thickness of the heat insulation layer (15) is not less than one centimeter.

6. The airtightness detection test bench for a quick-connect fitting according to claim 1, characterized in that: A sound insulation cover (16) is fixedly installed on the upper surface of the detection box (1), and the air pump (2) is located inside the sound insulation cover (16).

7. An airtightness detection test bench for a quick connector according to claim 6, characterized in that: The air inlet end of the sound insulation cover (16) is fixedly installed with a second intake elbow (17) penetrating through the outer surface of the sound insulation cover (16), and the opening of the second intake elbow (17) faces downward.

8. An airtightness detection test bench for a quick connector according to claim 7, characterized in that: A dustproof net (18) is fixedly installed at one end of the second intake elbow (17) far from the air pump (2).

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