Water testing equipment

Abstract

The utility model provides water testing equipment which is used for detecting the air tightness of a filtering assembly, the filtering assembly is provided with two communicated flange interfaces, the water testing equipment comprises a machine table, a water tank and a pushing device, the water tank is used for storing liquid, and the water tank is installed on the machine table; the pushing device comprises a transferring assembly, two oppositely-arranged clamping assemblies and two oppositely-arranged sealing assemblies, the transferring assembly comprises a first driving mechanism, a transmission pair installed at the output end of the first driving mechanism and a bracket connected with the transmission pair, the first driving mechanism is installed on the machine table, and the bracket is located above the water tank; the clamping assembly comprises a second driving mechanism, a connecting frame installed at the output end of the second driving mechanism and a clamping block connected with the connecting frame, and the second driving mechanism is installed on the bracket; and the sealing assembly comprises a third driving mechanism and a plug installed at the output end of the third driving mechanism, the third driving mechanism is installed on the connecting frame, previous manual work is replaced by a machine, and the manual participation degree is low.

Description

Technical Field

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

[0002] A filter is a high-efficiency air filtration device designed to capture tiny particles and pollutants in the air. It is commonly used in air purification systems, industrial dust removal equipment, hospitals, laboratories, and other environments with high air quality requirements. To test the airtightness of filters, multiple filters are usually connected in series to form a filter assembly. The filter assembly is equipped with a flange interface at each end, and the two flange interfaces are connected. Two plugs are manually used to plug the two flange interfaces at both ends of the filter assembly. The filter assembly with the plugs installed is then placed in water. If conditions permit, compressed air can also be injected into the filter assembly to observe whether bubbles emerge to test the airtightness of the filter assembly.

[0003] However, manual testing of the air tightness of the filter components 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 device, aiming to solve the problems of the existing manual air tightness detection of filter components, which is cumbersome, time-consuming, wastes manpower and material resources, and is not suitable for large-scale promotion.

[0005] The utility model is implemented as follows: a water testing device for detecting the air tightness of a filter assembly, wherein the filter assembly has two communicating flange interfaces, and the water testing device comprises:

[0006] Machine;

[0007] A water tank, which is used to store liquid and is installed on the machine;

[0008] A pushing device, the pushing device includes a transfer assembly, two oppositely arranged clamping assemblies and two oppositely arranged sealing assemblies, the transfer assembly includes a first drive mechanism, a transmission pair mounted on the output end of the first drive mechanism, and a bracket connected to the transmission pair, the first drive mechanism is mounted on the machine platform, and the bracket is located above the water tank; the clamping assembly includes a second drive mechanism, a connecting frame mounted on the output end of the second drive mechanism, and a clamping block connected to the connecting frame, the second drive mechanism is mounted on the bracket; the sealing assembly includes a third drive mechanism and a plug mounted on the output end of the third drive mechanism, and the third drive mechanism is mounted on the connecting frame;

[0009] When air tightness testing is required, the two second driving mechanisms respectively drive the two clamping blocks to move towards each other to clamp the filter assembly, and the two third driving mechanisms respectively drive the two plugs to plug the corresponding flange interfaces. Finally, the first driving mechanism drives the bracket to drive the filter assembly downward into the liquid to detect whether there is any air leakage.

[0010] Optionally, the transfer assembly further includes two slide rails and a plurality of sliders slidably mounted on the two slide rails, the two slide rails are both mounted on the machine platform, and each slider is connected to the bracket.

[0011] Optionally, the bracket includes a support frame, two oppositely arranged rockers, two oppositely arranged slides and two ball slides respectively fixed on the two slides, the support frame is connected to the transmission pair, and the two slides are slidably installed on the support frame. The support frame is provided with two through holes, and the rocker passes through the corresponding through holes and is threadedly connected to the ball slide, and the second driving mechanism is installed on the slide.

[0012] Optionally, the transfer assembly further includes a support plate for supporting the filter assembly, the support plate including a positioning plate and an adjustment rod with adjustable length, one end of the adjustment rod is connected to the bracket, and the other end is vertically connected to the positioning plate.

[0013] Optionally, the clamping block is provided with a through hole, and the third driving mechanism can drive the plug to pass through the corresponding through hole.

[0014] Optionally, the water testing equipment also includes a gas delivery device, which includes an air pump, an air pipe, at least one rubber plug and an air pressure sensor for collecting internal gas pressure. The air pump and the air pressure sensor are both installed on the machine platform. The plug is provided with an air channel for communicating with the flange interface. One end of the air pipe is connected to the air pump, and the other end is connected to the air channel in one of the plugs. The rubber plug seals the air channel in the other plug, and the air pressure sensor is connected to the air pipe.

[0015] Optionally, the water testing equipment further includes a human-machine interface installed on the machine platform, and the first driving mechanism, the second driving mechanism and the third driving mechanism are all electrically connected to the human-machine interface.

[0016] Optionally, the water testing equipment further includes a camera for monitoring the filter assembly, the camera is mounted on the machine platform, and the camera is electrically connected to the human-machine interface.

[0017] Optionally, the water testing equipment also includes a safety grating, which includes a transmitting grating and a receiving grating that cooperates with the transmitting grating. The transmitting grating and the receiving grating are both installed on the machine platform, and the transmitting grating and the receiving grating are both electrically connected to the human-machine interface.

[0018] Optionally, the water tank is a box made of transparent material.

[0019] The utility model adopts a machine water testing device to replace the previous manual method to detect the air tightness of the filter component. 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

[0020] Figure 1 It is a three-dimensional diagram of the water testing equipment provided by an embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional diagram of the water testing equipment provided by an embodiment of the utility model without the water tank;

[0022] Figure 3 This is a three-dimensional diagram of the combination of the pushing device and part of the machine provided in the embodiment of the utility model;

[0023] Figure 4 It is a partial three-dimensional diagram of the pushing device provided by the embodiment of the utility model. Figure 1 ;

[0024] Figure 5 It is a partial three-dimensional diagram of the pushing device provided by the embodiment of the utility model. Figure 2 ;

[0025] Figure 6 This is a three-dimensional diagram of the clamping assembly and the sealing assembly provided by an embodiment of the present utility model;

[0026] Figure 7 yes Figure 6 Exploded diagram;

[0027] Figure 8 It is a three-dimensional diagram of the filter assembly provided by an embodiment of the present utility model.

[0028] Reference numerals:

[0029] 10. Filter assembly; 11. Filter; 12. Flange interface; 13. Fixing plate; 20. Machine; 30. Water tank; 40. Pushing device; 50. Transfer assembly; 51. First drive mechanism; 52. Transmission pair; 53. Bracket; 531. Support frame; 532. Rocker; 533. Slide; 534. Ball bearing slide; 54. Slide rail; 55. Slider; 56. Locking piece; 57. Card sleeve; 58. Support plate ;581. Adjusting rod; 582. Positioning plate; 60. Clamping assembly; 61. Second driving mechanism; 62. Connecting frame; 63. Block; 631. Through hole; 632. Arc groove; 633. Avoidance groove; 70. Sealing assembly; 71. Third driving mechanism; 72. Plug; 721. Airway; 80. Human-machine interface; 90. Camera; 100. Safety light grid; 110. Transmitting grid; 120. Receiving grid. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figures 1 to 8 As shown, an embodiment of the present invention provides a water testing device for detecting the air tightness of a filter assembly 10. The filter assembly 10 is formed by a plurality of filters 11 connected in series. The water testing device can perform air tightness detection on a plurality of filters 11 at one time. The filter assembly 10 has two interconnected flange interfaces 12. The two flange interfaces 12 are disposed at the two side ends of the filter assembly 10 with their backs to each other. The filter assembly 10 is compatible with a plurality of different types of filters 11.

[0034] The water testing equipment includes a machine 20, a water tank 30 and a pushing device 40. The water tank 30 is used to store liquid, which is water. The water tank 30 can be detachably installed on the machine 20. The water tank 30 is a box made of transparent material to widen the operator's field of view.

[0035] The pushing device 40 includes a transfer assembly 50, two oppositely arranged clamping assemblies 60 and two oppositely arranged sealing assemblies 70. The transfer assembly 50 includes a first drive mechanism 51, a transmission pair 52 installed on the output end of the first drive mechanism 51 and a bracket 53 connected to the transmission pair 52. The first drive mechanism 51 is installed on the machine 20, the bracket 53 is located above the water tank 30, and the bracket 53 is slidably installed on the machine 20. The first drive mechanism 51 can drive the bracket 53 to slide back and forth in the vertical direction through the transmission pair 52. The transmission pair 52 can be a chain transmission component, and the first drive mechanism 51 can be a lifting cylinder.

[0036] The clamping assembly 60 includes a second driving mechanism 61, a connecting frame 62 installed on the output end of the second driving mechanism 61, and a clamping block 63 connected to the connecting frame 62. The second driving mechanism 61 is installed on the bracket 53, and the connecting frame 62 is installed on the bracket 53 for horizontal sliding. The two second driving mechanisms 61 can drive the clamping block 63 to reciprocate in the horizontal direction through the corresponding connecting frame 62 to clamp or release the filter assembly 10. The second driving mechanism 61 can be a telescopic cylinder.

[0037] The sealing assembly 70 includes a third driving mechanism 71 and a plug 72 installed on the output end of the third driving mechanism 71. The third driving mechanism 71 is installed on the connecting frame 62. The third driving mechanism 71 can drive the plug 72 to plug the corresponding flange interface 12. The third driving mechanism 71 can be a telescopic cylinder.

[0038] When it is necessary to test the air tightness of the filter assembly 10, first, the two second driving mechanisms 61 respectively drive the two clamping blocks 63 to run in opposite directions to clamp the filter assembly 10 to prevent movement. The second driving mechanism 61 can also drive the sealing assembly 70 as a whole to run together with the clamping block 63 through the connecting frame 62. Then, the two third driving mechanisms 71 respectively drive the two plugs 72 to block the corresponding flange interfaces 12 to seal the filter assembly 10. Finally, the first driving mechanism 51 drives the bracket 53 to drive the filter assembly 10 downward into the liquid to detect whether there is any air leakage and whether there are bubbles. If bubbles emerge, the air tightness of the filter assembly 10 is very poor. If no bubbles emerge, the air tightness of the filter assembly 10 is very good.

[0039] In this embodiment, the transfer assembly 50 also includes two slide rails 54 and a plurality of sliders 55 slidably mounted on the two slide rails 54. The two slide rails 54 are arranged in parallel. Both slide rails 54 are mounted on the machine 20. Each slider 55 is connected to the bracket 53 so that the bracket 53 can run stably on the machine 20 in the vertical direction.

[0040] The bracket 53 includes a support frame 531, two oppositely arranged rocking arms 532, two oppositely arranged slides 533 and two ball slides 534 respectively fixed on the two slides 533. The support frame 531 is connected to the transmission pair 52. The support frame 531 is slidably installed on the machine table 20 along the vertical direction. The two slides 533 are both slidably installed on the support frame 531 laterally. The support frame 531 is provided with two through holes, and the ball slide 534 is provided with a first threaded hole. The rocking arm 532 passes through the corresponding through holes and is threadedly connected to the first threaded hole in the ball slide 534. The rocking arm 532 and the ball slide 534 constitute a ball screw transmission component. The rocking arm 532 is a manual rod. Manually rotating the rocking arm 532 can make the slide 533 reciprocate along the horizontal direction. The second driving mechanism 61 is installed on the slide 533.

[0041] In some embodiments, the bracket 53 also includes two locking pieces 56 and two clamping sleeves 57, both of which are connected to the support frame 531. The clamping sleeves 57 are C-shaped structures. The two clamping sleeves 57 are respectively mounted on the two rockers 532. One end of the clamping sleeve 57 is provided with a positioning hole and the other end is provided with a second threaded hole. The locking piece 56 passes through the positioning hole and is threadedly connected to the second threaded hole to lock the adjusted rocker 532. The locking piece 56 can be a handle screw.

[0042] The transfer assembly 50 also includes a support plate 58 for supporting the filter assembly 10. The support plate 58 includes an adjusting rod 581 and a positioning plate 582. One end of the adjusting rod 581 is connected to the bracket 53, and the other end is vertically connected to the positioning plate 582. The length of the adjusting rod 581 can be adjusted. The filter assembly 10 can be placed on the positioning plate 582 before being clamped and fixed. The position of the filter assembly 10 can be adjusted by telescopic adjustment of the adjusting rod 581 to facilitate smooth clamping of the filter assembly 10.

[0043] The block 63 is provided with a through hole 631 , and the third driving mechanism 71 can drive the plug 72 through the corresponding through hole 631 to block the flange interface 12 , so that the forces exerted on the filter assembly 10 by the second driving mechanism 61 and the third driving mechanism 71 are on the same axis.

[0044] In some embodiments, the block 63 is further provided with an arc groove 632 and an avoidance groove 633. The arc groove 632 and the avoidance groove 633 are both connected to the through hole 631. The arc groove 632 and the avoidance groove 633 are both located on the side of the block 63 away from the third driving mechanism 71. The arc groove 632 is used to abut against the outer avoidance surface of the filter 11, and the avoidance groove 633 is used to avoid the fixing plate 13 on the filter 11.

[0045] The water testing equipment also includes an air delivery device, which includes an air pump, an air pipe, at least one rubber plug and an air pressure sensor for collecting internal gas pressure. The air pump and the air pressure sensor are both installed on the machine 20. The plug 72 is provided with an air channel 721 for communicating with the flange interface 12. One end of the air pipe is connected to the air pump and the other end is connected to the air channel 721 in one of the plugs 72. The rubber plug can be sealed in the air channel 721 in the other plug 72 as needed. The air pressure sensor is connected to the air pipe, and compressed air is filled into the filter assembly 10 so that the air pressure in the filter assembly 10 can be checked at any time.

[0046] In this embodiment, the water testing equipment also includes a human-machine interface 80 installed on the machine 20. The air pump, pressure sensor, first drive mechanism 51, second drive mechanism 61 and third drive mechanism 71 are all electrically connected to the human-machine interface 80. By controlling the clamping button on the human-machine interface 80, the corresponding driving operation can be achieved, reducing the intensity of manual work.

[0047] In some embodiments, the water testing device further includes a foot switch, which is electrically connected to the human-machine interface 80. The foot switch can replace the clamping button on the human-machine interface 80 to improve work efficiency.

[0048] The water testing equipment also includes a camera 90 for monitoring the filter assembly 10. The camera 90 is installed on the machine 20 and is located above the water tank 30. The camera 90 is electrically connected to the human-machine interface 80 to reflect the detection status of the filter assembly 10 in real time on the display screen of the human-machine interface 80, thereby improving the traceability of the detection data.

[0049] The water testing equipment also includes a safety grating 100, which includes a transmitting grating 110 and a receiving grating 120 that cooperates with the transmitting grating 110. The transmitting grating 110 and the receiving grating 120 are both installed on the machine platform 20. The transmitting grating 110 and the receiving grating 120 are both electrically connected to the human-machine interface 80 to protect the personal safety of the operator.

[0050] The method for the water testing equipment to perform air tightness testing on the filter assembly 10 is as follows:

[0051] Step S101, fix the filter assembly 10. First, place the filter assembly 10 on the support plate 58 and straighten it. Then, manually adjust the rocker 532 to make the two slides 533 slide to the appropriate position relative to the support frame 531. Tighten the two locking pieces 56 to prevent the slides 533 from sliding relative to the support frame 531. Then, press a clamping button on the human-machine interface 80. The two second drive mechanisms 61 respectively drive the two blocks 63 to run towards each other to clamp the filter assembly 10 to prevent movement. Finally, the operator's arm exits the detection range of the safety grating 100 and presses another clamping button on the human-machine interface 80. The two third drive mechanisms 71 then respectively drive the two plugs 72 to plug the corresponding flange interfaces 12 to seal the filter assembly 10.

[0052] Step S102, the filter component 10 is tested for entering water. After the sealing of the filter component 10 is completed, the first drive mechanism 51 drives the bracket 53 to drive the filter component 10 downward until the filter component 10 sinks below the liquid level in the water tank 30, and the air pump is started to fill the filter component 10 with compressed air. When the internal air pressure of the filter component 10 reaches the set value, the air pressure sensor collects air pressure data, and the camera 90 takes a photo to identify the water test screen of the filter component 10 in the water tank 30 to determine whether there is air leakage during the water test process, and the data fed back by the camera 90 and the air pressure sensor are used to determine whether it is qualified, and detect whether there are bubbles. If bubbles emerge, the air tightness of the filter component 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 80.

[0053] Step S103, clean and reset, use the first drive mechanism 51 to lift and reset the bracket 53, then turn off the air pump, and reset the third drive mechanism 71 and the second drive mechanism 61 in turn, and take out the filter component 10. Only manual loading and unloading is required, and the detection process is fully automatic. The test air pressure and visual detection data can be uploaded to the human-machine interface 80.

[0054] In summary, the utility model adopts a machine water testing device to replace the previous manual method to detect the air tightness of the filter component 10. The manual participation is low, and the manual factors have almost no effect on the 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.

[0055] 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 device, characterized in that , used to detect the air tightness of the filter assembly, the filter assembly has two connected flange interfaces, the water testing equipment includes: Machine; A water tank, which is used to store liquid and is installed on the machine; A pushing device, the pushing device includes a transfer assembly, two oppositely arranged clamping assemblies and two oppositely arranged sealing assemblies, the transfer assembly includes a first drive mechanism, a transmission pair mounted on the output end of the first drive mechanism, and a bracket connected to the transmission pair, the first drive mechanism is mounted on the machine platform, and the bracket is located above the water tank; the clamping assembly includes a second drive mechanism, a connecting frame mounted on the output end of the second drive mechanism, and a clamping block connected to the connecting frame, the second drive mechanism is mounted on the bracket; the sealing assembly includes a third drive mechanism and a plug mounted on the output end of the third drive mechanism, and the third drive mechanism is mounted on the connecting frame; When air tightness testing is required, the two second driving mechanisms respectively drive the two clamping blocks to move towards each other to clamp the filter assembly, and the two third driving mechanisms respectively drive the two plugs to plug the corresponding flange interfaces. Finally, the first driving mechanism drives the bracket to drive the filter assembly downward into the liquid to detect whether there is any air leakage.

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

3. The water testing device according to claim 1, characterized in that The bracket includes a support frame, two oppositely arranged rockers, two oppositely arranged slides and two ball slides respectively fixed on the two slides. The support frame is connected to the transmission pair. The two slides are slidably installed on the support frame. The support frame is provided with two through holes. The rocker passes through the corresponding through holes and is threadedly connected to the ball slide. The second driving mechanism is installed on the slide.

4. The water testing device according to claim 1, characterized in that The transfer assembly also includes a support plate for supporting the filter assembly, and the support plate includes a positioning plate and an adjustment rod with adjustable length. One end of the adjustment rod is connected to the support seat, and the other end is vertically connected to the positioning plate.

5. The water testing device according to claim 1, characterized in that The block is provided with a through hole, and the third driving mechanism can drive the plug to pass through the corresponding through hole.

6. The water testing device according to claim 1, characterized in that The water testing equipment also includes a gas delivery device, which includes an air pump, an air pipe, at least one rubber plug and an air pressure sensor for collecting internal gas pressure. The air pump and the air pressure sensor are both installed on the machine. The plug is provided with an air channel for communicating with the flange interface. One end of the air pipe is connected to the air pump and the other end is connected to the air channel in one of the plugs. The rubber plug seals the air channel in the other plug, and the air pressure sensor is connected to the air pipe.

7. The water testing device according to claim 1, characterized in that The water testing equipment also includes a human-machine interface installed on the machine, and the first driving mechanism, the second driving mechanism and the third driving mechanism are all electrically connected to the human-machine interface.

8. The water testing device according to claim 7, characterized in that The water testing equipment also includes a camera for monitoring the filter component. The camera is installed on the machine platform and is electrically connected to the human-machine interface.

9. The water testing device according to claim 7, characterized in that The water testing equipment also includes a safety grating, which includes a transmitting grating and a receiving grating that cooperates with the transmitting grating. The transmitting grating and the receiving grating are both installed on the machine platform, and the transmitting grating and the receiving grating are both electrically connected to the human-machine interface.

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

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