Water testing machine

Abstract

The utility model provides a water testing machine which is used for testing the air tightness of a to-be-tested piece, the to-be-tested piece is provided with an air inlet port, the water testing machine comprises a machine table, a sealing assembly, a pushing assembly and a water tank, the machine table comprises a rack, a plurality of first stand columns and a pedestal used for fixing the to-be-tested piece, and the pedestal is installed on the rack through the first stand columns; the sealing assembly comprises a support, a first driving mechanism and a plug installed at the output end of the first driving mechanism, the support is installed on the pedestal, and the first driving mechanism is installed on the support; the pushing assembly comprises a second driving mechanism, a connecting block installed at the output end of the second driving mechanism and a bracket connected with the connecting block, and the second driving mechanism is installed on the rack; the water tank is installed on the bracket and located below the pedestal. When air tightness detection is needed, the first driving mechanism drives the plug to block the air inlet port of the to-be-detected piece, and the second driving mechanism drives the bracket to drive the water tank to move upwards, so that the to-be-detected piece sinks into liquid in the water tank, and whether air leakage exists or not is detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, in particular to a water testing machine. Background Art

[0002] A drainer is a device used in drainage systems, and is typically used in hospitals, laboratories, and other environments with high requirements. A drainer generally consists of a main body, a connector, and a drain valve. The main body is equipped with an air inlet port, an exhaust port, and a drain outlet. The air inlet port and the exhaust port are both connected to the drain outlet. The connector is installed on the exhaust port, and the drain outlet is located at the bottom of the main body. The drain valve is installed on the drain outlet. In order to test the air tightness of the drainer, the connector will directly seal the exhaust port, and the drain valve will directly seal the drain outlet. Simply plug the air inlet port with a plug and place the drainer with the plug in water. If conditions permit, you can also fill the drainer with compressed air to observe whether bubbles emerge to test the air tightness of the drainer.

[0003] However, manual testing of the air tightness of the drainer is cumbersome, time-consuming, and wastes manpower and material resources, making it unsuitable for large-scale promotion. Utility Model Content

[0004] The purpose of the utility model is to provide a water testing machine, aiming to solve the problems of the existing manual air tightness detection of drainers, which is cumbersome to operate, takes too long, wastes manpower and material resources, and is not suitable for large-scale promotion.

[0005] The utility model is implemented as follows: a water testing machine for detecting the air tightness of a test piece, wherein the test piece has an air inlet port, and the water testing machine comprises:

[0006] A machine platform, comprising a frame, a plurality of first columns, and a base for fixing the test piece, wherein the base is mounted on the frame via the first columns;

[0007] A sealing assembly, comprising a bracket, a first driving mechanism, and a plug mounted on an output end of the first driving mechanism, wherein the bracket is mounted on the base, and the first driving mechanism is mounted on the bracket;

[0008] A pushing assembly, comprising a second driving mechanism, a connecting block mounted on an output end of the second driving mechanism, and a bracket connected to the connecting block, wherein the second driving mechanism is mounted on the frame;

[0009] A water tank for storing liquid, wherein the water tank is mounted on the bracket and is located below the base;

[0010] When air tightness testing is required, the test piece is fixed on the base, the first driving mechanism drives the plug to block the air inlet port of the test piece, and the second driving mechanism drives the bracket to move the water tank upward so that the test piece sinks into the liquid to detect whether there is any air leakage.

[0011] Optionally, the pushing assembly further includes two slide rails and a plurality of sliders respectively slidably mounted on the two slide rails, the two slide rails are both mounted on the rack, and each slider is connected to the bracket.

[0012] Optionally, the water testing machine also includes an air delivery device, which includes an air pump and an air pipe. The air pump is installed on the frame, and the plug is provided with an air duct for connecting with the air inlet port. One end of the air pipe is connected to the air pump, and the other end is connected to the air duct.

[0013] Optionally, the gas delivery device further includes an air pressure sensor for collecting internal gas pressure, and the air pressure sensor is connected to the air pipe.

[0014] Optionally, the platform includes a platform and a fixture seat for fixing the workpiece to be inspected, the first column is connected to the platform, and the fixture seat is detachably mounted on the platform.

[0015] Optionally, the fixture seat is provided with a mounting groove for fixing the workpiece to be inspected, the mounting groove includes a concave cavity and at least one avoidance hole, and each of the avoidance holes is connected to the concave cavity.

[0016] Optionally, the bracket includes a support plate and a plurality of second columns, one end of the second column is connected to the base and the other end is connected to the support plate, and the first driving mechanism is installed on the support plate.

[0017] Optionally, the water testing machine further includes a human-machine interface mounted on the frame, and the first driving mechanism and the second driving mechanism are both electrically connected to the human-machine interface.

[0018] Optionally, the water testing machine further includes a downward pressing assembly, which includes a third driving mechanism and a pressing block for abutting the top of the test piece, the third driving mechanism is mounted on the bracket, and the pressing block is mounted on the output end of the third driving mechanism.

[0019] Optionally, the water tank is a box made of transparent material.

[0020] The utility model adopts a mechanical water testing machine to replace the previous manual method to test the air tightness of the inspected parts. The manual participation is low, and the manual factors have almost no effect on the test results. The test results are accurate, the intensity of manual work is reduced, time and labor are saved, and the test data is traceable, which is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a water testing machine provided by an embodiment of the present utility model;

[0022] Figure 2 The water testing machine provided by the embodiment of the utility model is a three-dimensional Figure 1 ;

[0023] Figure 3 The water testing machine provided by the embodiment of the utility model is a three-dimensional Figure 2 ;

[0024] Figure 4 This is a three-dimensional diagram of the water testing machine provided by an embodiment of the utility model with the cover plate and the human-machine interface removed;

[0025] Figure 5 yes Figure 4 Exploded diagram;

[0026] Figure 6 This is a three-dimensional diagram of the combination of the frame and the pushing assembly provided by the embodiment of the utility model;

[0027] Figure 7 This is a three-dimensional diagram of the sealing assembly, the pressing assembly and the base provided by the embodiment of the utility model after being assembled;

[0028] Figure 8 yes Figure 7 Exploded diagram;

[0029] Figure 9 This is a three-dimensional diagram of a fixture base provided by an embodiment of the present utility model;

[0030] Figure 10 It is a three-dimensional diagram of the part to be inspected provided by an embodiment of the present utility model;

[0031] Figure 11 yes Figure 10 Exploded diagram.

[0032] Reference numerals:

[0033] 10. Part to be inspected; 11. Main body; 111. Air inlet port; 112. Exhaust port; 113. Drain port; 12. Connector; 13. Drain valve; 20. Machine; 21. Frame; 22. First column; 23. Base; 231. Table; 232. Fixture base; 233. Mounting slot; 2331. Concave cavity; 2332. Avoidance hole; 24. Cover; 30. Sealing assembly; 31. Bracket; 311. Support Support plate; 3111, guide hole; 312, second column; 32, first drive mechanism; 33, plug; 331, airway; 40, push assembly; 41, second drive mechanism; 42, connecting block; 43, bracket; 44, slide rail; 45, slider; 50, water tank; 60, human-machine interface; 61, button; 70, press-down assembly; 71, third drive mechanism; 72, pressure block; 73, guide rod; 80, fastener. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0036] It should also be noted that the directional terms such as left, right, up, and down in this embodiment are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0037] See also Figures 1 to 7 ,as well as Figures 10 and 11 As shown, an embodiment of the present invention provides a water testing machine for detecting the air tightness of a test piece 10. The test piece 10 is a drainer. The test piece 10 includes a main body 11, a connector 12, and a drain valve 13. The main body 11 has an air inlet port 111, an exhaust port 112, and a drain port 113. The air inlet port 111 and the exhaust port 112 are both connected to the drain port 113. The connector 12 is installed on the exhaust port 112. The drain port 113 is provided at the bottom of the main body 11. The drain valve 13 is installed on the drain port 113. In order to detect the air tightness of the test piece 10, the connector 12 will automatically and directly seal the exhaust port 112 in advance, and the drain valve 13 will directly seal the drain port 113, leaving only the air inlet port 111. The drain valve 13 is similar to a bolt and needs to be manually unscrewed before water can be drained.

[0038] The water testing machine includes a machine platform 20, a sealing assembly 30, a pushing assembly 40 and a water tank 50. The machine platform 20 includes a frame 21, multiple first columns 22 and a base 23 for fixing the test piece 10. One end of the first column 22 is connected to the base 23 and the other end is connected to the frame 21. The base 23 is installed on the frame 21 through the first column 22, and the base 23 is suspended.

[0039] The sealing assembly 30 includes a bracket 31, a first driving mechanism 32 and a plug 33 installed on the output end of the first driving mechanism 32. The bracket 31 is installed on the base 23. The first driving mechanism 32 is installed on the bracket 31. The plug 33 is located above the base 23. The first driving mechanism 32 can drive the plug 33 downward to block the air inlet port 111 of the inspected part 10. The first driving mechanism 32 can be a telescopic cylinder; the pushing assembly 40 includes a second driving mechanism 41, a connecting block 42 installed on the output end of the second driving mechanism 41 and a bracket 43 connected to the connecting block 42. The second driving mechanism 41 is installed on the frame 21. The second driving mechanism 41 can drive the bracket 43 to move up and down; the water tank 50 is used to store liquid, which is water. The water tank 50 is detachably installed on the bracket 43. The water tank 50 is located below the base 23. The water tank 50 is a box made of transparent material to widen the operator's field of view. The second driving mechanism 41 can be a sliding cylinder.

[0040] When the test piece 10 needs to be tested for air tightness, the test piece 10 is fixed on the base 23, and the first driving mechanism 32 drives the plug 33 to block the air inlet port 111 of the test piece 10 to seal the test piece 10. The second driving mechanism 41 drives the bracket 43 to drive the water tank 50 upward to make the test piece 10 sink into the liquid to detect whether there is air leakage and whether bubbles emerge. If bubbles emerge, the air tightness of the test piece 10 is very poor. If no bubbles emerge, the air tightness of the test piece 10 is very good.

[0041] The pushing assembly 40 also includes two slide rails 44 and a plurality of sliders 45 respectively slidably mounted on the two slide rails 44. The two slide rails 44 are arranged in parallel. Both slide rails 44 are mounted on the frame 21. Each slider 45 is connected to the bracket 43 so that the bracket 43 can run stably on the frame 21 in the vertical direction.

[0042] Please see further Figure 1 ,as well as Figures 5 to 10 In this embodiment, the water testing machine also includes an air delivery device, which includes an air pump and an air pipe. The air pump is installed on the frame 21. The plug 33 is provided with an air channel 331 for communicating with the air inlet port 111. One end of the air pipe is connected to the air pump and the other end is connected to the air channel 331. Compressed air is filled into the test piece 10 so that the detection effect can be better observed.

[0043] In some embodiments, the gas delivery device further includes a pressure sensor for collecting internal gas pressure, and the pressure sensor is connected to the gas pipe so that the gas pressure inside the test piece 10 can be checked at any time.

[0044] The base 23 includes a table 231 and a fixture seat 232 for fixing the test piece 10. The first column 22 is connected to the table 231. The fixture seat 232 is detachably mounted on the table 231 so that the fixture seat 232 can be replaced at any time according to the product.

[0045] The fixture seat 232 is provided with a mounting groove 233 for fixing the test piece 10. The mounting groove 233 includes a concave cavity 2331 and at least one avoidance hole 2332. Each avoidance hole 2332 is connected to the concave cavity 2331. There are two avoidance holes 2332, one of which is used to avoid the joint 12 and the other is used to avoid the drain valve 13. The structure of the fixture seat 232 can be designed according to the shape of the test piece 10.

[0046] The bracket 31 includes a support plate 311 and multiple second columns 312. The support plate 311 is located above the fixture base 232. One end of the second column 312 is connected to the base 23 and the other end is connected to the support plate 311. The first drive mechanism 32 is installed on the support plate 311 so that the first drive mechanism 32 can drive the plug 33 to move up and down.

[0047] In this embodiment, the water testing machine also includes a human-machine interface 60 installed on the frame 21. The air pump, pressure sensor, first drive mechanism 32 and second drive mechanism 41 are all electrically connected to the human-machine interface 60. By operating the button 61 on the human-machine interface 60, the corresponding driving operation can be achieved, reducing the intensity of manual work.

[0048] In some embodiments, the water testing machine further includes a foot switch, which is electrically connected to the human-machine interface 60. The foot switch can replace the button 61 on the human-machine interface 60 to improve work efficiency.

[0049] The water testing machine also includes a downward pressing component 70, which includes a third driving mechanism 71 and a pressure block 72 for abutting the top of the inspected piece 10. The first driving mechanism 32 and the third driving mechanism 71 are both installed on the support plate 311 of the bracket 31 through fasteners 80. The pressure block 72 is installed on the output end of the third driving mechanism 71. The third driving mechanism 71 is also electrically connected to the human-machine interface 60. The third driving mechanism 71 can drive the pressure block 72 downward to press the inspected piece 10 to prevent it from moving during the inspection process. The third driving mechanism 71 can be a telescopic cylinder and the fastener 80 can be a screw.

[0050] In some embodiments, the pressing assembly 70 also includes at least one guide rod 73, and the support plate 311 is provided with at least one guide hole 3111. One end of the guide rod 73 is fixedly connected to the pressing block 72, and the other end passes through the corresponding guide hole 3111 and protrudes outside the support plate 311, so that the pressing block 72 can be more stable during operation.

[0051] In some embodiments, the machine 20 further includes a plurality of cover plates 24 , each of which is mounted on the frame 21 to provide a certain degree of protection and enhance the appearance of the entire water testing machine.

[0052] The method for the water testing machine to perform air tightness testing on the test piece 10 is as follows:

[0053] Step S101, fix the test piece 10. First, place the test piece 10 on the fixture seat 232 and fix it. Then, press the corresponding button 61 on the human-machine interface 60. The third drive mechanism 71 drives the pressure block 72 downward to press the test piece 10. After that, the first drive mechanism 32 drives the plug 33 downward to block the air inlet port 111 of the test piece 10 to seal the test piece 10.

[0054] Step S102, the test piece 10 is put into water for testing. After the sealing of the test piece 10 is completed, the air pump is started to fill the test piece 10 with compressed air. At the same time, the second drive mechanism 41 drives the bracket 43 to drive the water tank 50 upward until the test piece 10 sinks below the liquid level in the water tank 50. When the internal air pressure of the test piece 10 reaches the set value, the air pressure sensor collects air pressure data, and a manual check is performed to see if there is any leakage and whether there are any bubbles. If bubbles emerge, the air tightness of the test piece 10 is very poor. If no bubbles emerge, the product is qualified, and the judgment result and data are transmitted to the memory of the human-machine interface 60.

[0055] Step S103, cleaning and resetting, use the second drive mechanism 41 to drive the bracket 43 and the water tank 50 to descend and reset, then turn off the air pump to discharge the compressed air in the inspected part 10. When the atmospheric pressure in the cavity of the inspected part 10 is restored, the first drive mechanism 32 drives the plug 33 to reset, and the third drive mechanism 71 drives the pressure block 72 to reset and return to the initial position. The operator can then take out the inspected product.

[0056] In summary, the utility model adopts a mechanical water testing machine to replace the previous manual method to test the air tightness of the test piece 10. The manual participation is low, and the manual factors have almost no effect on the test results. The test results are accurate, the intensity of manual work is reduced, time and labor are saved, and the test data is traceable, which is suitable for large-scale promotion.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water testing machine, characterized in that , used to detect the air tightness of the test piece, the test piece has an air inlet port, the water testing machine includes: A machine platform, comprising a frame, a plurality of first columns, and a base for fixing the test piece, wherein the base is mounted on the frame via the first columns; A sealing assembly, comprising a bracket, a first driving mechanism, and a plug mounted on an output end of the first driving mechanism, wherein the bracket is mounted on the base, and the first driving mechanism is mounted on the bracket; A pushing assembly, comprising a second driving mechanism, a connecting block mounted on an output end of the second driving mechanism, and a bracket connected to the connecting block, wherein the second driving mechanism is mounted on the frame; A water tank for storing liquid, wherein the water tank is mounted on the bracket and is located below the base; When air tightness testing is required, the test piece is fixed on the base, the first driving mechanism drives the plug to block the air inlet port of the test piece, and the second driving mechanism drives the bracket to move the water tank upward so that the test piece sinks into the liquid to detect whether there is any air leakage.

2. The water testing machine according to claim 1, characterized in that The pushing assembly also includes two slide rails and a plurality of sliders respectively slidably mounted on the two slide rails. Both slide rails are mounted on the rack, and each slider is connected to the bracket.

3. The water testing machine according to claim 1, characterized in that The water testing machine also includes an air delivery device, which includes an air pump and an air pipe. The air pump is installed on the frame. The plug is provided with an air channel for connecting with the air inlet port. One end of the air pipe is connected with the air pump and the other end is connected with the air channel.

4. The water testing machine according to claim 3, characterized in that The gas delivery device also includes a pressure sensor for collecting internal gas pressure, and the pressure sensor is connected to the air pipe.

5. The water testing machine according to claim 1, characterized in that The base includes a table and a fixture seat for fixing the inspected piece. The first column is connected to the table, and the fixture seat is detachably mounted on the table.

6. The water testing machine according to claim 5, characterized in that The fixture seat is provided with a mounting groove for fixing the test piece, and the mounting groove includes a concave cavity and at least one avoidance hole, and each of the avoidance holes is connected to the concave cavity.

7. The water testing machine according to claim 1, characterized in that The bracket includes a support plate and a plurality of second columns, one end of the second column is connected to the base and the other end is connected to the support plate, and the first driving mechanism is installed on the support plate.

8. The water testing machine according to claim 1, characterized in that The water testing machine also includes a human-machine interface installed on the frame, and the first driving mechanism and the second driving mechanism are both electrically connected to the human-machine interface.

9. The water testing machine according to claim 1, characterized in that The water testing machine also includes a downward pressing component, which includes a third driving mechanism and a pressure block for abutting the top of the test piece. The third driving mechanism is installed on the bracket, and the pressure block is installed on the output end of the third driving mechanism.

10. The water testing machine according to claim 1, characterized in that ,The water tank is a box made of transparent material.

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