Sealing test device for refrigerator connecting pipe production

Abstract

The invention discloses a sealing detection device for refrigerator connecting pipe production, which relates to the technical field of pipeline detection. The main problem to be solved is that currently the detection of refrigerator connecting pipes is all carried out on the outer wall welding part of the connecting pipe, and the detection range is small. However, if the whole connecting pipe is detected, it is time-consuming and laborious. A diversion component is arranged in the first sealing cover and the second sealing cover, and the diversion component comprises a detection pipe, a main pipe, a side pipe and a sealing pipe, wherein: the detection pipe is arranged on the first sealing cover and the second sealing cover, the main pipe is arranged on the detection pipe, the side pipe is arranged on the main pipe, and the sealing pipe is arranged on the main pipe. The inner and outer walls of the connecting pipe itself are uneven. Water flow impacts the connecting pipe wall from the outside of the connecting pipe to mainly detect the concave part of the outer wall of the connecting pipe, which is the place where the connecting pipe is easily damaged. Water flow impacts the connecting pipe wall from the inside of the connecting pipe to mainly detect the concave part of the inner wall of the connecting pipe. Water pressure detection can cover the entire wall of the connecting pipe at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection, in particular to a sealing detection device for producing refrigerator connecting pipes. Background Art

[0002] Refrigerators are essential household appliances in every household and are used all year round, especially in the hot summer. The connecting pipes among refrigerator parts are important structures of refrigerators. Since aluminum pipes are cheap now, they are widely used. However, the connecting pipes are also a relatively easy-to-break component among refrigerator parts. Therefore, in the process of producing connecting pipes, it is necessary to test the sealing performance of the connecting pipes to reduce the proportion of unqualified products in the connecting pipes. Otherwise, as social demand improves, the quality of parts cannot keep up and the products will be eliminated.

[0003] At present, the detection of refrigerator connecting pipes is carried out on the outer wall welding part of the connecting pipe, and the detection range is small. However, if the entire connecting pipe is tested, it is time-consuming and laborious. Therefore, it is necessary to design a sealing detection device for refrigerator connecting pipe production. Summary of the invention

[0004] The object of the present invention is to provide a sealing detection device for refrigerator connecting pipe production to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a sealing detection device for refrigerator connecting pipe production, comprising a frame;

[0006] The frame is provided with a detection cavity;

[0007] A first sealing cover is provided at one end of the detection cavity;

[0008] A second sealing cover is provided at the other end of the detection cavity;

[0009] Two ends of the detection cavity are provided with first threads, and the first sealing cover and the second sealing cover are provided with second threads;

[0010] A clamping assembly is provided on the detection cavity, and the clamping assembly includes a bearing sleeve assembly and a clamping plate, wherein:

[0011] The bearing sleeve assembly is fixedly arranged on the inner wall of the detection cavity, and the clamping plate is arranged on the bearing sleeve assembly.

[0012] According to the above technical solution, a flow dividing assembly is provided inside the first sealing cover and the second sealing cover, and the flow dividing assembly includes a detection tube, a main tube, a side tube, and a sealing tube, wherein:

[0013] The detection tube is arranged on the first sealing cover and the second sealing cover, the main pipe is arranged on the detection tube, the side pipe is arranged on the main pipe, and the sealing tube is arranged on the main pipe.

[0014] According to the above technical solution, the detection tube protrudes from the first sealing cover and the second sealing cover, and the detection tube is provided with a matching sealing sleeve.

[0015] According to the above technical solution, a first detection box and a second detection box are respectively provided on both sides of the frame;

[0016] The top of the first detection box is connected to a first water tank, and a first pump is provided in the first water tank;

[0017] The bottom of the side wall of the second detection box is connected to a second water tank, and a second pump is provided in the second water tank;

[0018] The pipe on the side wall of the first detection box is connected to the first telescopic tube, and the pipe on the side wall of the second detection box is connected to the second telescopic tube.

[0019] According to the above technical solution, an operation room is provided on one side of the frame, a main control terminal is provided in the operation room, and a PLC program is provided in the main control terminal.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, by providing a detection chamber, the water flow continuously applies pressure to the connecting pipe, the water pressure detection can cover the entire wall of the connecting pipe at the same time, the pressure is applied evenly, the wall detection and sealing detection of the connecting pipe are more accurate, and the dual detection of the sealing and strength of the connecting pipe can be realized in the same device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the implementation rules of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the detection cavity structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the detection chamber and the connecting tube of the present invention;

[0025] Figure 4 is a schematic diagram of a clamping assembly of the present invention;

[0026] Figure 5 is a schematic diagram of a flow diversion assembly of the present invention;

[0027] In the figure: 1. frame; 2. first detection box; 3. second detection box; 4. second telescopic tube; 5. first telescopic tube; 6. detection chamber; 7. first sealing cover; 8. second sealing cover; 9. bearing sleeve assembly; 10. clamping plate; 11. detection tube; 12. main tube; 13. side tube; 14. sealing tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-5 The present invention provides a technical solution: a sealing detection device for refrigerator connecting pipe production, comprising a frame 1, the frame 1 is welded by a plurality of metal structural members, a plurality of metal rods are welded on the middle layer of the frame 1, and the interior of the frame 1 is divided into a plurality of placement places by using a plurality of metal rods, each placement place is used to place a detection cavity 6, and the two ends of the detection cavity 6 are respectively provided with a first sealing cover 7 and a second sealing cover 8;

[0030] A micro-monitor is provided inside the detection chamber 6;

[0031] The side wall of the detection chamber 6 is made of high-strength glass;

[0032] The first threads are provided on both end walls of the detection chamber 6, and the second threads are provided on the inner walls of the first sealing cover 7 and the second sealing cover 8. The personnel can open and close the detection chamber 6 by rotating the first sealing cover 7 and the second sealing cover 8;

[0033] A bearing sleeve assembly 9 is fixedly mounted on the inner wall of the detection chamber 6, and a clamping plate 10 is fixedly mounted on the bearing sleeve assembly 9. The refrigerator connecting pipe (hereinafter referred to as the connecting pipe) is clamped by the clamping plate 10 to facilitate the subsequent detection work.

[0034] A detection tube 11 is provided in the middle of the first sealing cover 7 and the second sealing cover 8. A main pipe 12 is fixedly installed at the inner end of the detection tube 11. A side pipe 13 is provided on the side wall of the main pipe 12. A first electromagnetic valve is provided in the side pipe 13. A sealing tube 14 is fixedly installed on the port of the main pipe 12. A person uses the sealing tube 14 to connect with the connecting pipe to detect the sealing of the connecting pipe.

[0035] The detection tube 11 protrudes from the first sealing cover 7 and the second sealing cover 8, and a matching sealing sleeve is provided on the detection tube 11;

[0036] A first detection box 2 and a second detection box 3 are respectively provided on both sides of the frame 1, the top of the first detection box 2 is connected to the first water tank, a first pump is provided in the first water tank, the bottom of the side wall of the second detection box 3 is connected to the second water tank, a second pump is provided in the second water tank, the first detection box 2 and the second detection box 3 are both tubular, the pipe on the side wall of the first detection box 2 is connected to the first telescopic tube 5, the setting height of the first telescopic tube 5 is on the same horizontal line as the detection tube 11 at one end of the detection cavity 6, and the first telescopic tube 5 is calibrated and aligned with the detection tube 11, the pipe on the side wall of the second detection box 3 is connected to the second telescopic tube 4, the setting height of the second telescopic tube 4 is on the same horizontal line as the detection tube 11 at the other end of the detection cavity 6, and the second telescopic tube 4 is calibrated and aligned with the detection tube 11;

[0037] The first telescopic tube 5 corresponds to the first sealing cover 7, and the second telescopic tube 4 corresponds to the second sealing cover 8;

[0038] The diameters of the first telescopic tube 5 and the second telescopic tube 4 are adapted to the diameter of the detection tube 11;

[0039] A second electromagnetic valve and a third electromagnetic valve are respectively disposed in each of the first telescopic tube 5 and the second telescopic tube 4;

[0040] A fourth electromagnetic valve is provided in the detection tube 11;

[0041] The first telescopic tube 5 and the second telescopic tube 4 are both metal tubes, and both the first telescopic tube 5 and the second telescopic tube 4 can be telescoped. After the first telescopic tube 5 and the second telescopic tube 4 are inserted into the detection tube 11, personnel use a sealing sleeve to tightly seal the connection between the first telescopic tube 5, the second telescopic tube 4 and the detection tube 11 to improve the sealing accuracy;

[0042] An operating room is provided on one side of the frame 1, and a main control terminal is provided in the operating room. A PLC program is provided in the main control terminal, and the PLC program is used to realize the control of the above structure;

[0043] The first embodiment is a process for fixing the connecting pipe:

[0044] Step S1, the personnel opens the first sealing cover 7, does not open the second sealing cover 8, and removes the first sealing cover 7 and the second sealing cover 8 from the detection chamber 6 by rotating them, inserts one end of the connecting pipe into the sealing pipe 14, and the inner wall of the sealing pipe 14 is provided with thread patterns corresponding to the pipe opening of the connecting pipe. The personnel rotates the connecting pipe to tightly connect the connecting pipe and the sealing pipe 14 together, which is the preliminary fixing process of the connecting pipe;

[0045] At this time, the second sealing cover 8 is connected to the second telescopic tube 4;

[0046] Step S2, the personnel controls the bearing sleeve assembly 9 through the control end and then controls the movement of the clamping plate 10. The initial state of the clamping plate 10 is close to the inner wall of the detection cavity 6, which is convenient for the personnel to place the connecting pipe. The clamping plate 10 clamps the connecting pipe as the second step of the fixing process;

[0047] Step S3, then the personnel close the first sealing cover 7 with the detection chamber 6 again. The closing process is that the personnel rotate the first sealing cover 7, and align the sealing tube 14 on the first sealing cover 7 with the other end of the connecting tube before rotating. When the first sealing cover 7 is rotated, not only the first sealing cover 7 is connected with the detection chamber 6 through the first thread and the second thread, but the sealing tube 14 is also connected with the connecting tube through the thread rotation. At this time, the first sealing cover 7, the second sealing cover 8 and the clamping plate 10 all play a fixing role on the connecting tube, and the connecting tube is in an empty state in the monitoring detection chamber 6;

[0048] Place a moisture detector in the connecting pipe;

[0049] Step S4, wait for the first sealing cover 7 to close with the detection chamber 6, the personnel control the first telescopic tube 5 to extend through the control end, and insert it into the detection tube 11, and finally connect the first telescopic tube 5 and the detection tube 11 together through the sealing sleeve.

[0050] The first embodiment is the detection process of the connecting pipe:

[0051] The entire testing process is divided into two testing modes, namely water pressure external flushing mode and water pressure internal flushing mode;

[0052] Water pressure external flushing mode: The personnel open the second and third electromagnetic valves through the control end, the first electromagnetic valve opens, and the fourth electromagnetic valve closes;

[0053] The first pump is running to flush the water in the first water tank into the first detection box body 2, and then into the detection chamber 6 through the first telescopic tubes 5 and the side tubes 13. Since the fourth electromagnetic valve is closed at this time, the water cannot enter the inside of the connecting pipe. As the water flows quickly, the detection chamber 6 is filled, and the water flows into the second detection box body 3 through the side tube 13 close to the second telescopic tube 4, and finally into the second water tank;

[0054] The personnel controls the opening amplitude of the fourth electromagnetic valve at the water outlet, and then controls the water outlet speed. At this time, the water injection speed in the detection chamber 6 is slightly slower than the water outlet speed, resulting in the water flow in the detection chamber 6 always maintaining a certain degree of pressure on the connecting pipe. The water flow continues to pressurize the connecting pipe. At this time, if the moisture detector detects that water has entered the connecting pipe, it means that the connecting pipe is unqualified. If the water flow pressure ends and the moisture detector does not detect that water has entered the connecting pipe, it means that the first step of the connecting pipe detection process has passed, and the sealing of the connecting pipe has been determined.

[0055] Water pressure internal flushing mode: the personnel opens the second and third electromagnetic valves through the control end, closes the first electromagnetic valve, and opens the fourth electromagnetic valve;

[0056] The second pump starts to discharge the water in the second water tank into the connecting pipe, and the micro-monitor detects whether the connecting pipe is leaking or deformed;

[0057] If it is necessary to strengthen the detection of the connecting pipe, the control end sets the water outlet speed to V, which is divided into 9 levels from V1 to V9, V1 indicates the slowest water outlet speed, V9 indicates the fastest water outlet speed, and the conventional water outlet speed is V9. As the detection requirements increase, the water outlet speed is reduced, and the pressure of the water flow in the detection chamber 6 on the connecting pipe is increased, and finally the purpose of detecting whether the connecting pipe is easy to change is achieved. The micro-monitor monitors the state of the connecting pipe in real time. If the micro-monitor detects that the connecting pipe is deformed, it is determined that the pipe body strength of the connecting pipe is unqualified, and the double detection of the sealing and strength of the connecting pipe is achieved;

[0058] The purpose of first performing the water pressure external flushing mode is to ensure that the inside of the connecting pipe is dry and to create an adaptive environment for the moisture detector to work;

[0059] The purpose of testing the connecting pipe twice is that the surface of the connecting pipe itself is not extremely smooth, and the inner and outer walls are uneven. The water flow impacts the connecting pipe wall from the outside of the connecting pipe to mainly detect the concave part of the outer wall of the connecting pipe, which is the place where the connecting pipe is easily damaged. The water flow impacts the connecting pipe wall from the inside of the connecting pipe to mainly detect the concave part of the inner wall of the connecting pipe. The water pressure test can cover the entire wall of the connecting pipe at the same time, and the pressure is evenly applied, which is more accurate for the wall detection and sealing detection of the connecting pipe;

[0060] Only the connecting pipes that are qualified for the water pressure external flushing mode will be used for the water pressure internal flushing mode.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing detection device for refrigerator connecting pipe production, characterized in that: include: Framework (1); A detection chamber (6), wherein the detection chamber (6) is arranged on the frame (1); A first sealing cover (7), wherein the first sealing cover (7) is arranged at one end of the detection chamber (6); A second sealing cover (8), the second sealing cover (8) being arranged at the other end of the detection chamber (6); Both ends of the detection chamber (6) are provided with first threads, and the first sealing cover (7) and the second sealing cover (8) are provided with second threads; A clamping assembly is provided on the detection chamber (6), and the clamping assembly comprises a bearing sleeve assembly (9) and a clamping plate (10), wherein: The bearing sleeve assembly (9) is fixedly arranged on the inner wall of the detection chamber (6), and the clamping plate (10) is arranged on the bearing sleeve assembly (9); A flow splitter assembly is provided inside the first sealing cover (7) and the second sealing cover (8), and the flow splitter assembly includes a detection tube (11), a main tube (12), a side tube (13), and a sealing tube (14), wherein: The detection tube (11) is arranged on the first sealing cover (7) and the second sealing cover (8), the main pipe (12) is arranged on the detection tube (11), the side pipe (13) is arranged on the main pipe (12), and the sealing tube (14) is arranged on the main pipe (12); The detection tube (11) protrudes from the first sealing cover (7) and the second sealing cover (8), and a matching sealing sleeve is provided on the detection tube (11).

2. The sealing detection device for refrigerator connecting pipe production according to claim 1, characterized in that: A first detection box (2) and a second detection box (3) are respectively provided on both sides of the frame (1); The top of the first detection box (2) is connected to a first water tank, and a first pump is arranged in the first water tank; The bottom of the side wall of the second detection box body (3) is connected to a second water tank, and a second pump is arranged in the second water tank; The pipe on the side wall of the first detection box (2) is connected to the first telescopic tube (5), and the pipe on the side wall of the second detection box (3) is connected to the second telescopic tube (4).

3. The sealing detection device for refrigerator connecting pipe production according to claim 2, characterized in that: An operating room is provided on one side of the frame (1), a main control terminal is provided in the operating room, and a PLC program is provided in the main control terminal.

4. The sealing detection device for refrigerator connecting pipe production according to claim 3, characterized in that: Preliminary fixing process of connecting pipe: The first sealing cover (7) is opened, and the second sealing cover (8) is not opened, and the first sealing cover (7) and the second sealing cover (8) are removed from the detection chamber (6) by rotating them; One end of the connecting pipe is inserted into the sealing pipe (14), and the inner wall of the sealing pipe (14) is provided with thread patterns corresponding to the pipe opening of the connecting pipe. The connecting pipe is tightly connected to the sealing pipe (14) by rotating the connecting pipe.

5. The sealing detection device for refrigerator connecting pipe production according to claim 4, characterized in that: The second fixing process of the connecting pipe: The bearing sleeve assembly (9) is controlled by the control end, thereby controlling the movement of the clamping plate (10), wherein the clamping plate (10) is initially in close contact with the inner wall of the detection cavity (6); The personnel closes the first sealing cover (7) with the detection chamber (6) again. The closing process is that the personnel rotates the first sealing cover (7). Before rotating, the sealing tube (14) on the first sealing cover (7) is aligned with the other end of the connecting tube. When the first sealing cover (7) is rotated, not only the first sealing cover (7) is connected with the detection chamber (6) through the first thread and the second thread, but the sealing tube (14) is also connected with the connecting tube through the thread rotation.

6. The sealing detection device for refrigerator connecting pipe production according to claim 5, characterized in that: Initial testing process: The first pump is operated to flush water in the first water tank into the first detection box body (2), and then into the detection chamber (6) through the first telescopic tubes (5) and the side tubes (13). As the water flows rapidly, the detection chamber (6) is filled, and the water flows into the second detection box body (3) through the side tubes (13) close to the second telescopic tubes (4), and finally into the second water tank; Personnel controls the opening amplitude of the fourth electromagnetic valve at the water outlet, and then controls the water outlet speed. If the water flow pressure is over and the moisture detector does not detect any moisture entering the connecting pipe, it means that the first step of the connecting pipe detection process has passed.

7. The sealing detection device for refrigerator connecting pipe production according to claim 6, characterized in that: Second test process: If it is necessary to strengthen the detection of the connecting pipe, the control end sets the water outlet speed to V, which is divided into 9 levels from V1 to V9, V1 represents the slowest water outlet speed, V9 represents the fastest water outlet speed, and the conventional water outlet speed is V9. As the detection requirements increase, the water outlet speed is reduced, and the pressure of the water flow in the detection chamber (6) on the connecting pipe is increased, and finally the purpose of detecting whether the connecting pipe is easy to deform is achieved. The micro-monitor monitors the state of the connecting pipe in real time. If the micro-monitor detects that the connecting pipe is deformed, it is determined that the pipe body strength of the connecting pipe is unqualified, thereby realizing the dual detection of the sealing and strength of the connecting pipe.

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