Automobile radiator airtightness detection water tank water level control system

The water level control system, which uses a lifting drive component and a scale indicator, solves the problem of inaccurate water level in the water tank, improving the accuracy and clarity of the airtightness test for automotive radiators.

CN224682591UActive Publication Date: 2026-08-25ZHENJIANG GRETE MACHINERY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202522037347.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-25
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

In the airtightness testing of automotive radiators, existing technologies have difficulty accurately controlling the water level in the water tank, resulting in low testing accuracy and the possibility of missing or misjudging leak points.

Method used

The water level control system for the automotive radiator airtightness test tank uses a lifting drive component to adjust the height of the extension tube. Combined with scale and arrow indicators, it achieves precise control of the water level, ensuring that the water level is appropriate to fully submerge the radiator and improve the clarity of the test.

Benefits of technology

It enables precise adjustment of the water level in the tank, ensuring full coverage of the radiator for testing, improving the accuracy and clarity of airtightness testing, and reducing misjudgments and missed detections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sink water level control, disclose an automobile radiator airtightness detection sink water level control system for controlling the liquid level of sink body, and the sink body has a pool cavity, the pool cavity is equipped with the water for the airtightness detection of automobile radiator, the bottom side inner wall of pool cavity on the sink body has a water outlet, the water outlet of pool cavity inner wall is fixed with the lowest water level cylinder, one side top wall of sink body has a side cavity, and the sink water level control system comprises: the extension cylinder is movably installed on the lowest water level cylinder, and the extension cylinder has two water outlets, the utility model makes the lifting piece slide up in the cross frame cavity of frame body, and then makes the first connecting rod drive the extension cylinder slide up on the lowest water level cylinder, thereby adjusting the water height of the cylinder mouth of the lowest water level cylinder top, and then realizing the adjustment of the liquid level height in the pool cavity.
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Description

Technical Field

[0001] This utility model relates to the field of water tank level control technology, and in particular to a water tank level control system for detecting the air tightness of automotive radiators. Background Technology

[0002] The car radiator is the core component of the car cooling system, and its sealing performance is directly related to the normal operation of the engine. A common way to test the sealing performance of a car radiator is to fill the radiator with compressed air (usually at a pressure of 0.05-0.2 MPa) and immerse it in water in a water tank. The leak point is determined by observing whether bubbles emerge.

[0003] When testing the airtightness of car radiators of different sizes, it is necessary to fill the water tank with an appropriate amount of water. If the water level is too low, the area of ​​the radiator to be tested will not be fully submerged in the water, and the leak point may be exposed above the water surface, preventing the formation of bubbles and thus causing the leak to be missed. If the water level is too high, the bubbles rise slowly in the deep water environment, and the visual clarity is low, which will affect the testers' accurate judgment of the leak point. Therefore, it is very important to fill the water tank with an appropriate amount of water. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a water level control system for the airtightness detection water tank of an automotive radiator, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A water level control system for an automotive radiator airtightness testing tank is used to control the water level in the tank body. The tank body has a cavity containing water for airtightness testing of the automotive radiator. The bottom inner wall of the cavity has a water outlet, and a minimum water level cylinder is fixedly installed at the water outlet. One side of the top wall of the tank body has a side cavity. The water level control system includes: An extension tube is movably installed on the lowest water level tube. The extension tube has two water outlets, which facilitate the flow of water in the pool cavity into the lowest water level tube through the two water outlets on the extension tube. A lifting drive assembly is disposed in the side cavity. The lifting drive assembly is used to adjust the lifting height of the extension cylinder, thereby adjusting the water flow height of the lowest water level cylinder, and realizing the adjustment of the liquid level height in the pool cavity.

[0006] Preferably, a frame is fixedly installed on one side of the top wall of the water tank body, and the frame has a cross cavity, which is arranged in a cross shape.

[0007] Preferably, the lifting drive assembly includes: The lifting block is movably installed in the cross cavity on the frame. The lifting block is arranged in a cross shape and adapted to the cross cavity. Its bottom side is attached to one side of the top wall of the water tank body. An electric push rod is fixedly installed on the bottom inner wall of the side cavity, and its output end is fixedly installed on the bottom side of the lifting block. The first connecting rod has one end fixedly installed on the bottom side of the lifting block and the other end fixedly installed on the top side of the extension tube.

[0008] Preferably, one outer wall of the water tank body has a scale, and the initial zero value on the scale is kept horizontal with the bottom inner wall of the pool cavity.

[0009] Preferably, one end of the second connecting rod is fixedly installed on the bottom side of the lifting block, and an arrow is fixedly installed on the other end of the second connecting rod. The arrow is attached to the outer side wall of one side of the water tank body, and the tip of the arrow is horizontal to the inner side wall of the water outlet on the extension tube.

[0010] Preferably, a water outlet pipe is fixedly installed at the water outlet hole on the water tank body, and a water storage tank is placed below the water outlet pipe inside the water tank body.

[0011] Preferably, a water pump is installed on the inner wall of the water tank body. The pumping end of the water pump is connected to one end of a pumping pipe, and the other end of the pumping pipe is connected to a water storage tank. The draining end of the water pump is connected to one end of a draining pipe, and the other end of the draining pipe is installed on the top side wall of the water tank body. The top opening of the draining pipe faces the pool cavity.

[0012] This application activates an electric push rod, causing the lifting block to slide upward within the cross-shaped cavity of the frame. This, in turn, causes the first connecting rod to slide the extension cylinder upward on the lowest water level cylinder, thereby adjusting the water level at the top of the lowest water level cylinder. Simultaneously, it moves an arrow, and the value on the scale pointed to by the arrow tip is the water level at the bottom inner wall of the water outlet on the extension cylinder. This indicates the actual volume of water in the pool for testing the airtightness of automotive radiators. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure in plan view of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A; Figure 5This is a partial cross-sectional view of the structure of this utility model from an exploded perspective.

[0014] In the diagram: 100, Water tank body; 101, Pool cavity; 102, Water outlet; 103, Lowest water level cylinder; 104, Side cavity; 105, Frame; 1051, Cross cavity; 106, Scale; 107, Water outlet pipe; 200, Extension cylinder; 201, Water outlet; 300, Lifting drive assembly; 301, Lifting block; 302, Electric push rod; 303, First connecting rod; 304, Second connecting rod; 305, Arrow; 400, Water storage tank; 500, Water pump; 501, Water pumping pipe; 502, Drain pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] To address the problem of controlling the water level in a water tank, this embodiment discloses a water level control system for an automotive radiator airtightness testing water tank. This system controls the water level in the tank body (100). The water level control system includes: Figure 5 The extension tube 200 and the lifting drive assembly 300 are shown.

[0017] like Figure 2 As shown, the water tank body 100 has a pool cavity 101, which is filled with water for testing the airtightness of the car radiator. The bottom inner wall of the pool cavity 101 on the water tank body 100 has a water outlet hole 102. A minimum water level cylinder 103 is fixedly installed at the water outlet hole 102 on the inner wall of the pool cavity 101. The opening height of the top of the minimum water level cylinder 103 is the minimum liquid level height in the pool cavity 101.

[0018] like Figure 4 As shown, the extension cylinder 200 is movably installed on the lowest water level cylinder 103. The extension cylinder 200 can be raised and lowered on the lowest water level cylinder 103. The extension cylinder 200 has two water outlets 201, which facilitates the flow of water in the pool cavity 101 into the lowest water level cylinder 103 through the two water outlets 201 on the extension cylinder 200.

[0019] Continue as Figure 4As shown, a frame 105 is fixedly installed on one side top wall of the water tank body 100. The frame 105 has a cross-shaped cavity 1051, which is arranged in a cross shape. For the installation of the lifting drive assembly 300, one side top wall of the water tank body 100 has a side cavity 104, and the lifting drive assembly 300 is disposed within the side cavity 104. The lifting drive assembly 300 includes a lifting block 301, an electric push rod 302, and a first connecting rod 303. The lifting block 301 is movably installed within the cross-shaped cavity 1051 on the frame 105. The lifting block 301 is arranged in a cross shape and is adapted to the cross-shaped cavity 1051, with its bottom side attached to the water tank body 105. The top wall of the 0; the electric push rod 302 is fixedly installed on the bottom inner wall of the side cavity 104, and its output end is fixedly installed on the bottom side of the lifting block 301; one end of the first connecting rod 303 is fixedly installed on the bottom side of the lifting block 301, and the other end is fixedly installed on the top side of the extension cylinder 200; by activating the electric push rod 302, the lifting block 301 slides upward in the cross cavity 1051 of the frame 105, thereby causing the first connecting rod 303 to drive the extension cylinder 200 to slide upward on the lowest water level cylinder 103, thereby adjusting the water flow height at the top of the lowest water level cylinder 103, thereby achieving the adjustment of the liquid level height in the pool cavity 101.

[0020] like Figure 1 As shown, one side of the outer wall of the water tank body 100 has a scale 106. The initial zero value on the scale 106 is level with the bottom inner wall of the pool cavity 101. At the same time, one end of the second connecting rod 304 is fixedly installed on the bottom side of the lifting block 301, and the other end of the second connecting rod 304 is fixedly installed with an arrow 305. The arrow 305 is attached to one side of the outer wall of the water tank body 100, and the tip of the arrow 305 is level with the bottom inner wall of the water outlet 201 on the extension cylinder 200. The value on the scale 106 pointed to by the tip of the arrow 305 is the water level height of the bottom inner wall of the water outlet 201 on the extension cylinder 200. Thus, it can be known that the pool cavity 101 contains the actual volume of water for airtightness testing of car radiators.

[0021] like Figure 2 As shown, a water outlet pipe 107 is fixedly installed at the water outlet hole 102 on the water tank body 100, so that the water overflowing from the lowest water level cylinder 103 can flow into the water outlet pipe 107; at the same time, a water storage tank 400 is placed below the water outlet pipe 107 in the water tank body 100, and the overflowing water can be collected in a centralized manner through the water storage tank 400.

[0022] like Figure 1As shown, a water pump 500 is installed on the inner wall of the water tank body 100. The pumping end of the water pump 500 is connected to one end of a pumping pipe 501, and the other end of the pumping pipe 501 is connected to a water storage tank 400. The draining end of the water pump 500 is connected to one end of a drain pipe 502, and the other end of the drain pipe 502 is installed on the top side wall of the water tank body 100. The top opening of the drain pipe 502 faces the pool cavity 101. By starting the water pump 500, water in the water storage tank 400 can be pumped into the pool cavity 101, thereby realizing the water filling operation in the pool cavity 101.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A water level control system for an automotive radiator airtightness testing water tank, used to control the liquid level of the water tank body (100), the water tank body (100) having a pool cavity (101), the pool cavity (101) being filled with water used for airtightness testing of the automotive radiator, the bottom inner wall of the pool cavity (101) of the water tank body (100) having a water outlet hole (102), a minimum water level cylinder (103) being fixedly installed at the water outlet hole (102) on the inner wall of the pool cavity (101), and a side cavity (104) on one side of the top wall of the water tank body (100), characterized in that, The water level control system for the water tank includes: An extension tube (200) is movably mounted on the lowest water level tube (103). The extension tube (200) has two water outlets (201) to facilitate the flow of water in the pool cavity (101) into the lowest water level tube (103) through the two water outlets (201) on the extension tube (200). The lifting drive assembly (300) is disposed in the side cavity (104). The lifting drive assembly (300) is used to adjust the lifting height of the extension cylinder (200), thereby adjusting the water flow height of the lowest water level cylinder (103) and realizing the adjustment of the liquid level height in the pool cavity (101).

2. The water level control system for the automotive radiator airtightness testing water tank according to claim 1, characterized in that, A frame (105) is fixedly installed on one side of the top wall of the water tank body (100). The frame (105) has a cross cavity (1051) with a cross-shaped structure.

3. The water level control system for the automotive radiator airtightness testing water tank according to claim 2, characterized in that, The lifting drive assembly (300) includes: The lifting block (301) is movably installed in the cross cavity (1051) on the frame (105). The lifting block (301) is arranged in a cross shape and is adapted to the cross cavity (1051). Its bottom side is attached to one side top wall of the water tank body (100). An electric push rod (302) is fixedly installed on the bottom inner wall of the side cavity (104), and its output end is fixedly installed on the bottom side of the lifting block (301); The first connecting rod (303) has one end fixedly installed on the bottom side of the lifting block (301) and the other end fixedly installed on the top side of the extension tube (200).

4. The water level control system for the automotive radiator airtightness testing water tank according to claim 1, characterized in that, The outer wall of one side of the water tank body (100) has a scale (106), and the initial zero value on the scale (106) is level with the bottom inner wall of the pool cavity (101).

5. The water level control system for the automotive radiator airtightness testing water tank according to claim 3, characterized in that, One end of a second connecting rod (304) is fixedly installed on the bottom side of the lifting block (301), and an arrow (305) is fixedly installed on the other end of the second connecting rod (304). The arrow (305) is attached to the outer side wall of the water tank body (100), and the tip of the arrow (305) is kept horizontal with the bottom inner wall of the water outlet (201) on the extension tube (200).

6. The water level control system for the automotive radiator airtightness testing water tank according to claim 1, characterized in that, A water outlet pipe (107) is fixedly installed at the water outlet hole (102) on the water tank body (100), and a water storage tank (400) is placed below the water outlet pipe (107) inside the water tank body (100).

7. The water level control system for the automotive radiator airtightness testing water tank according to claim 6, characterized in that, A water pump (500) is installed on the inner wall of the water tank body (100). The water pump (500) is connected to one end of a water pump pipe (501) at the water pump end. The other end of the water pump pipe (501) is connected to a water storage tank (400). The water pump (500) is connected to one end of a drain pipe (502) at the drain end. The other end of the drain pipe (502) is installed on the top side wall of the water tank body (100). The top opening of the drain pipe (502) faces the pool cavity (101).