A water detection device for a liquid storage tank shell

Abstract

This utility model relates to the technical field of liquid reservoir testing equipment, and in particular to a liquid reservoir shell water testing device, including a frame, a clamp assembly, an inflation assembly, a water testing tank mounted on the frame, and a lifting component mounted on the frame for moving the clamp assembly up and down to and from the water testing tank. The clamp assembly includes a clamping frame mounted on the output end of the lifting component, a connector for connecting to an upper vent pipe, a quick clamp mounted on the clamping frame for driving the connector to move up and down, a support plate mounted on the clamping frame for supporting the liquid reservoir shell, a plug for blocking the lower vent pipe, and a baffle mounted on the clamping frame for abutting against the left side of the plug. The inflation assembly is connected to the connector. The plug includes a plug plate and an elastic sealing tube mounted on the right side of the plug plate for extending into the lower vent pipe, the outer diameter of the elastic sealing tube gradually decreasing from left to right. Implementing this utility model can reduce the operational difficulty of liquid reservoir shell water testing and ensure the water testing is performed.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid storage tank testing equipment, and in particular to a liquid storage tank shell water testing device. Background Technology

[0002] Liquid receivers are widely used devices in refrigeration and air conditioning systems, primarily for storing and regulating the flow of liquids. The airtightness of the receiver housing is a key factor in ensuring its proper functioning. To guarantee the performance and safety of the receiver, leak testing of the housing during the manufacturing process is essential. Leak testing is typically performed using a water-based method, which involves injecting gas or liquid at a certain pressure into the housing and observing for any leaks, thus ensuring the housing's tightness.

[0003] The structural design of a liquid reservoir casing typically includes an upper vent pipe and a lower vent pipe. For example... Figure 1 As shown, the upper vent pipe is located on the upper side of the housing and extends upwards, used to connect to an external air source or detection equipment; the lower vent pipe is located on the lower side of the housing, typically extending downwards first and then horizontally to the left, used to discharge liquid or gas. This design allows the reservoir to effectively store liquid and discharge gas, while also facilitating connection to water detection devices.

[0004] Existing water leak detection devices are typically equipped with clamping assemblies for securing and inspecting the reservoir housing. These clamping assemblies generally include a clamping frame, a connector, a quick-release clamp, a support plate, and a plug. The connector connects to the upper vent pipe of the reservoir housing, the quick-release clamp moves the connector up and down, the support plate supports the reservoir housing, and the plug blocks the lower vent pipe. The water leak detection device connects to the upper vent pipe via the connector and, in conjunction with the plug, blocks the lower vent pipe, thus enabling the detection of air leaks in the reservoir housing.

[0005] Although existing water testing devices can perform basic leak detection, their operation has certain shortcomings. Because the plug is fixed to the clamping frame, aligning the lower vent tube with the plug is cumbersome and increases operational difficulty when clamping the reservoir housing. Furthermore, the length of the lower vent tube may deviate within a certain range, causing the connection between the plug and the lower vent tube to loosen, thus affecting the water testing process. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a water testing device for a liquid storage tank shell, which can reduce the difficulty of operation and ensure the water testing is carried out.

[0007] To solve the above-mentioned technical problems, this utility model provides a water testing device for a liquid reservoir shell, comprising a frame, a clamping assembly, an inflation assembly, a water testing tank mounted on the frame, and a lifting component mounted on the frame for moving the clamping assembly up and down to and from the water testing tank. The clamping assembly includes a clamping frame mounted on the output end of the lifting component, a connector for connecting to an upper vent pipe, a quick clamp mounted on the clamping frame for driving the connector to move up and down, a support plate mounted on the clamping frame for supporting the liquid reservoir shell, a plug for blocking the lower vent pipe, and a baffle mounted on the clamping frame for abutting against the left side of the plug. The inflation assembly is connected to the connector. The plug includes a plug plate and an elastic sealing tube mounted on the right side of the plug plate for extending into the lower vent pipe, wherein the outer diameter of the elastic sealing tube gradually decreases from left to right.

[0008] As an improvement to the above solution, the inner side of the elastic sealing tube is provided with multiple outwardly concave clearance ring grooves from left to right.

[0009] As an improvement to the above solution, the plug also includes a support tube fixed to the right side of the plug plate and whose inner side is used to abut against the outer side of the lower vent tube, and the elastic sealing tube is placed inside the support tube.

[0010] As an improvement to the above solution, the cross-section of the plug plate is a regular polygon with eight to twelve sides, and the axis of the plug plate, the axis of the bearing tube, and the axis of the elastic sealing tube coincide.

[0011] As an improvement to the above solution, the liquid storage tank housing water detection device of this utility model also includes a pressure sensor installed in the connector and a digital display installed on the frame and communicating with the pressure sensor.

[0012] As an improvement to the above solution, the support plate is provided with a support through hole whose diameter gradually decreases from top to bottom and matches the lower part of the liquid reservoir housing.

[0013] As an improvement to the above solution, a clearance notch is provided on the front side of the supporting through hole to allow the lower vent pipe to enter and exit.

[0014] As an improvement to the above solution, the clamping frame includes a base plate, a horizontal arm installed at the output end of the lifting component, and two connecting rods spaced apart on the horizontal arm. The baffle is installed on the base plate, and the quick clamp is installed on the horizontal arm. The base plate has two first through holes through which the two connecting rods pass, and the support plate has two second through holes through which the two connecting rods pass. Each of the two connecting rods is threaded with two first nuts that abut against the upper and lower sides of the base plate, and two second nuts that abut against the upper and lower sides of the support plate, respectively.

[0015] Implementing this utility model has the following beneficial effects:

[0016] The water testing device for the reservoir shell of this utility model works together with a frame, clamping assembly, air filling assembly, water testing tank and lifting component. During the clamping process, there is no need to align the lower air pipe with the plug fixed on the baffle for positioning, which reduces the difficulty of operation. It can also adapt to the length deviation of the lower air pipe within a certain range so that the plug and the lower air pipe are tightly connected and the water testing is guaranteed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the reservoir housing to be inspected by the water detection device for the reservoir housing in this embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the water detection device for the liquid reservoir housing in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixture assembly in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the plug structure in an embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional schematic diagram of the plug plate in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram illustrating the working principle of the plug in this embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram illustrating the working principle of the connector in an embodiment of this utility model.

[0024] Figure 8 This is a diagram showing the layout of the supporting through holes on the support plate in an embodiment of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure in which the support plate and the base plate are installed on the connecting rod in an embodiment of this utility model.

[0026] In the picture:

[0027] 110. Upper ventilator; 120. Lower ventilator;

[0028] 200. Rack;

[0029] 300. Clamp assembly; 310. Clamping frame; 311. Base plate; 312. Cross arm; 313. Connecting rod; 314. First through hole; 315. First nut; 316. Second nut; 320. Connector; 330. Quick clamp; 340. Support plate; 341. Support through hole; 342. Relief notch; 343. Second through hole; 350. Plug; 351. Plug plate; 352. Elastic sealing tube; 353. Relief annular groove; 354. Support tube; 360. Baffle;

[0030] 400. Inflatable components;

[0031] 500. Water inspection tank;

[0032] 600. Lifting components;

[0033] 700. Barometric pressure sensor;

[0034] 800, Digital Display Instrument. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to facilitate a clearer understanding of the technical concept claimed by the present invention. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit the present invention.

[0036] like Figure 1 The diagram shown is a structural schematic of the reservoir housing to be inspected by the water testing device in this embodiment of the invention. The reservoir housing has an upwardly extending upper vent pipe 110 on its upper side and a lower vent pipe 120 extending downwards and then horizontally to the left at its lower side. In practice, one of the upper vent pipe 110 and the lower vent pipe 120 is used to introduce gas while the other is used to block it, preparing for the water testing of the reservoir housing.

[0037] like Figures 2 to 9 As shown in the figure, a water testing device for a liquid reservoir housing according to an embodiment of this utility model includes a frame 200, a clamping assembly 300, an inflation assembly 400, a water testing tank 500 mounted on the frame 200, and a lifting component 600 mounted on the frame 200 for moving the clamping assembly 300 up and down in and out of the water testing tank 500. Specifically, the clamping assembly 300 is used to clamp and fix the liquid reservoir housing; the inflation assembly 400 can be a high-pressure gas cylinder, air compressor, nitrogen generator, or air pump in conjunction with a pressure regulator, etc., and inflates the liquid reservoir housing on the clamping assembly 300 through a flexible air tube; the lifting component 600 can be a hydraulic or pneumatic lifting structure, a motor in conjunction with connecting rods, gears and racks, sprockets and chains, etc., to move the liquid reservoir housing in and out of the water testing tank 500, preparing for water testing of the liquid reservoir housing.

[0038] The clamp assembly 300 includes a clamping frame 310 mounted on the output end of the lifting component 600, a connector 320 for connecting to the upper vent pipe 110, a quick clamp 330 mounted on the clamping frame 310 for driving the connector 320 to move up and down, a support plate 340 mounted on the clamping frame 310 for supporting the liquid reservoir housing, a plug 350 for plugging the lower vent pipe 120, and a baffle 360 ​​mounted on the clamping frame 310 for abutting against the left side of the plug 350. In practice, the quick clamp 330 generally includes a base plate, a handle mounted on the base plate, and a lever linkage mechanism mounted on the base plate. By pressing down the handle and lever linkage mechanism, the operating force is amplified, allowing the connector 320 to move down and connect to and abut against the upper vent pipe 110. Before clamping the reservoir housing, the clamp assembly 300 blocks the lower vent pipe 120 with the plug 350, places the reservoir housing on the support plate 340, and operates the quick clamp 330 to connect and abut the connector 320 with the upper vent pipe 110. The quick clamp 330 and the support plate 340 work together to clamp the reservoir housing and fix it to the clamping frame 310. During clamping, it is not necessary to align the lower vent pipe 120 with the plug 350 fixed on the baffle 360, reducing the difficulty of operation.

[0039] The inflation component 400 is connected to the connector 320. In fact, the inflation component 400 is connected to the connector 320 through a flexible air tube. After the connector 320 is connected to the upper air pipe 110, the inflation component 400 inflates the liquid reservoir housing with gas through the connector 320.

[0040] The plug 350 includes a plug plate 351 and an elastic sealing tube 352 installed on the right side of the plug plate 351 and used to extend into the lower vent pipe 120. The outer diameter of the elastic sealing tube 352 gradually decreases from left to right. In fact, the outer diameter of the left part of the elastic sealing tube 352 should be larger than the inner diameter of the lower vent pipe 120. After the elastic sealing tube 352 is forcefully inserted into the lower vent pipe 120, the outer side of the elastic sealing tube 352 abuts against the inner wall of the lower vent pipe 120 under its own elastic deformation, which seals the outlet of the lower vent pipe 120. If the gas pressure in the reservoir shell is too high, the elastic sealing tube 352 will be fixed out of the lower vent pipe 120. The baffle 360 ​​abuts against the plug plate 351 to prevent the elastic sealing tube 352 from continuing to move to the left. It can adapt to the length deviation of the lower vent pipe 120 within a certain range, so that the plug 350 and the lower vent pipe 120 are tightly connected, ensuring the water test.

[0041] The water testing device for the reservoir shell of this utility model is made possible by the cooperation of the frame 200, the clamping assembly 300, the air filling assembly 400, the water testing tank 500 and the lifting component 600. During the clamping process, it is not necessary to align the lower air pipe 120 with the plug 350 fixed on the baffle 360, which reduces the difficulty of operation. It can also adapt to the length deviation of the lower air pipe 120 within a certain range, so that the plug 350 and the lower air pipe 120 are tightly connected, ensuring the water testing.

[0042] It should be noted that the inner side of the elastic sealing tube 352 preferably has a plurality of outwardly concave relief grooves 353 from left to right. Under the action of the relief grooves 353, a larger relief space is provided for the elastic sealing tube 352 to shrink and deform, so that the elastic sealing tube 352 can be more easily inserted into the lower vent tube 120. At the same time, the inner side of the elastic sealing tube 352 has a larger contact area with the high-pressure gas in the reservoir housing, so that the elastic sealing tube 352 and the inner wall of the lower vent tube 120 are in closer contact, ensuring a tight connection between the plug 350 and the lower vent tube 120.

[0043] Specifically, the plug 350 preferably includes a support tube 354 fixed to the right side of the plug plate 351 and with its inner side abutting against the outer side of the lower vent tube 120. The elastic sealing tube 352 is placed inside the support tube 354. When the elastic sealing tube 352 is placed inside the lower vent tube 120 and abuts against the inner wall of the lower vent tube 120, the lower vent tube 120 is placed inside the support tube 354, preventing the elastic sealing tube 352 from twisting, deforming, and detaching from the lower vent tube 120, and ensuring a reliable seal between the plug 350 and the lower vent tube 120.

[0044] More specifically, the cross-section of the plug plate 351 is a regular polygon with eight to twelve sides, and the axis of the plug plate 351, the axis of the support tube 354, and the axis of the elastic sealing tube 352 coincide. Figure 5 As shown in the embodiment of this utility model, the number of sides of the cross section of the plug plate 351 is ten. In actual application, the number of sides of the cross section of the plug plate 351 can be changed according to the corresponding needs. The number of sides of the cross section of the plug plate 351 can be set to eight to twelve, which can provide a clamping surface for rotating the plug plate 351. Compared with the circular cross section of the plug plate 351, it is easier for the operator to rotate the plug plate 351 to drive the elastic sealing tube 352 into the lower vent pipe 120.

[0045] It is worth mentioning that the liquid reservoir housing water testing device of this utility model preferably includes a pressure sensor 700 installed in the connector 320 and a digital display 800 installed on the frame 200 and communicatively connected to the pressure sensor 700. Previously, when testing the liquid reservoir housing, the operator needed to observe the surface of the liquid reservoir housing within the water testing tank 500 (either through the liquid surface or by making the side of the water testing tank 500 transparent and observing through the side) to determine if there were bubbles forming, thus determining whether the liquid reservoir housing was leaking. This required experience and judgment, and prolonged observation put a heavy strain on the operator's eyes. This utility model, however, directly observes the pressure stability inside the liquid reservoir housing using the digital display 800, eliminating the need to observe bubbles on the surface of the liquid reservoir housing, making observation easier and reducing the operator's burden.

[0046] It should be noted that the support plate 340 preferably has a support through hole 341 with a diameter that gradually decreases from top to bottom and matches the lower part of the reservoir housing. In fact, the reservoir housing generally includes a cylindrical body and end caps fixed to the cylindrical body at both ends. Since the outer diameter of the lower end cap gradually decreases from top to bottom, and the support through hole 341 matches the lower part of the reservoir housing, when the lower part of the reservoir housing extends into the support through hole 341, the support plate 340 can support the reservoir housing through the support through hole 341, ensuring that the quick clamp 330, connector 320 and support plate 340 can cooperate to clamp the reservoir housing.

[0047] Furthermore, the front side of the supporting through hole 341 is preferably provided with a clearance notch 342 for the lower vent pipe 120 to enter and exit. If the supporting through hole 341 is set to be closed, the liquid reservoir housing first passes the lower vent pipe 120 through the supporting through hole 341 and then swings to a vertical state, so that the lower part of the liquid reservoir housing abuts against the supporting through hole 341. The present invention adds a clearance notch 342, so that when the liquid reservoir housing is in a vertical state, the lower vent pipe 120 first enters the corresponding position through the clearance notch 342, and then moves down so that the lower part of the liquid reservoir housing abuts against the supporting through hole 341, simplifying the clamping difficulty of the liquid reservoir housing on the clamping assembly 300.

[0048] Specifically, the clamping frame 310 preferably includes a base plate 311, a horizontal arm 312 installed at the output end of the lifting component 600, and two connecting rods 313 spaced apart on the horizontal arm 312. The baffle 360 ​​is installed on the base plate 311, and the quick clamp 330 is installed on the horizontal arm 312. The base plate 311 is provided with two first through holes 314 through which the two connecting rods 313 pass, and the support plate 340 is provided with two second through holes 343 through which the two connecting rods 313 pass. Each of the two connecting rods 313 is threadedly connected to two first nuts 315 that abut against the upper and lower sides of the base plate 311, and two second nuts 316 that abut against the upper and lower sides of the support plate 340, respectively. In fact, by rotating the two first nuts 315 to loosen their contact with the upper and lower sides of the base plate 311, the vertical position of the base plate 311 relative to the connecting rod 313 can be adjusted, thereby adjusting the vertical position of the baffle 360 ​​on the base plate 311. Similarly, by rotating the two second nuts 316, the vertical position of the support plate 340 relative to the connecting rod 313 can be adjusted, which in turn adjusts the vertical position of the baffle 360 ​​so that the baffle 360 ​​can better contact the stopper plate 351.

[0049] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A liquid accumulator housing water detection device, the liquid accumulator housing is provided with an upper vent pipe extending upwardly on the upper side of the liquid accumulator housing, and the liquid accumulator housing is provided with a lower vent pipe extending downwardly first and then extending horizontally to the left, characterized in that: The liquid reservoir housing water testing device includes a frame, a clamp assembly, an inflation assembly, a water testing tank mounted on the frame, and a lifting component mounted on the frame for moving the clamp assembly up and down to and from the water testing tank. The clamp assembly includes a clamping frame mounted on the output end of the lifting component, a connector for connecting to the upper vent pipe, a quick clamp mounted on the clamping frame for driving the connector to move up and down, a support plate mounted on the clamping frame for supporting the liquid reservoir housing, a plug for blocking the lower vent pipe, and a baffle mounted on the clamping frame for abutting against the left side of the plug. The inflation assembly is connected to the connector. The plug includes a plug plate and an elastic sealing tube mounted on the right side of the plug plate for extending into the lower vent pipe. The outer diameter of the elastic sealing tube gradually decreases from left to right.

2. The water detection device for a liquid storage tank shell as described in claim 1, characterized in that: The inner side of the elastic sealing tube is provided with multiple outwardly concave relief ring grooves from left to right.

3. The water detection device for a liquid storage tank shell as described in claim 2, characterized in that: The plug also includes a support tube fixed to the right side of the plug plate and whose inner side is used to abut against the outer side of the lower vent tube, and the elastic sealing tube is placed inside the support tube.

4. The water detection device for a liquid storage tank shell as described in claim 3, characterized in that: The cross-section of the plug plate is a regular polygon with eight to twelve sides, and the axis of the plug plate, the axis of the support tube, and the axis of the elastic sealing tube coincide.

5. The water detection device for a liquid storage tank shell as described in claim 1, characterized in that: It also includes a pressure sensor installed in the connector and a digital display mounted on the rack and communicating with the pressure sensor.

6. The water detection device for a liquid storage tank shell as described in claim 1, characterized in that: The support plate has support through holes with a diameter that gradually decreases from top to bottom and matches the lower part of the liquid reservoir housing.

7. A water detection device for a liquid storage tank shell as described in claim 6, characterized in that: The front side of the supporting through hole is provided with a clearance notch for the lower vent pipe to enter and exit.

8. A water detection device for a liquid storage tank shell as described in claim 1, characterized in that: The clamping frame includes a base plate, a horizontal arm installed at the output end of the lifting component, and two connecting rods spaced apart on the horizontal arm. The baffle is installed on the base plate, and the quick clamp is installed on the horizontal arm. The base plate has two first through holes through which the two connecting rods pass, and the support plate has two second through holes through which the two connecting rods pass. Each of the two connecting rods is threaded with two first nuts that abut against the upper and lower sides of the base plate, and two second nuts that abut against the upper and lower sides of the support plate, respectively.

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