Expansion kettle air tightness detection device

Abstract

The utility model provides an air tightness detection device for an expansion kettle, relates to the technical field of air tightness detection of expansion kettles, and aims to solve the technical problem that in the prior art, normal driving of an automobile is affected when an expansion kettle with poor air tightness flows into the market and is installed in the automobile. An expansion pot air tightness detection device comprises a mounting base, a placing table, a fixing assembly, an air tightness detection assembly and a plurality of plugging assemblies, the placing table is connected with the mounting base, the fixing assembly fixes an expansion pot, each plugging assembly comprises a first cylinder and a first plug, and the first cylinder is connected with the first plug and drives the first plug to plug an opening of the expansion pot. The air tightness detection assembly comprises a second cylinder, a second plug and a breather pipe, the second cylinder is connected with the second plug and controls the second plug to plug the detection port of the expansion pot, an air hole is axially formed in the second plug, the lower end of the air hole forms an air outlet in the bottom end of the second plug, the air hole forms an air inlet in the side wall of the second plug, and the breather pipe is connected with the air inlet. And the breather pipe is externally connected with an air pressure detection device.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection of expansion pots, in particular to an air tightness detection device for expansion pots. Background Art

[0002] The expansion pot is an essential safety functional component of the automobile engine cooling system. It is equipped with multiple openings to accommodate and compensate for the expansion and contraction of water in the system. During the operation of the engine, when the temperature of the automobile's cooling system rises, the coolant expands. At this time, the coolant vapor enters the expansion pot, preventing a large amount of evaporation loss of the coolant, increasing the boiling point of the coolant, and eliminating the low-pressure steam in the cooling system so that it does not cause air blockage. At the same time, it gives the coolant room to expand due to changes in temperature, load, and speed, ensuring the coolant circulation capacity. Therefore, the air tightness requirements of the expansion pot are relatively high. If an expansion pot with unqualified air tightness is directly put on the market and used in automobiles, once a leak occurs, it will affect the normal driving of the car. Therefore, designing a device for air tightness detection of expansion pots to screen out unqualified products is a problem that needs to be solved urgently. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an expansion pot air tightness detection device to solve the technical problem in the prior art that expansion pots with poor air tightness flow into the market and are installed in automobiles, which affects the normal driving of the automobile.

[0004] In order to solve the above technical problems, the utility model provides an expansion pot air tightness detection device, including a mounting seat, a placement table, a fixing component, an air tightness detection component and a plurality of plugging components, the placement table is connected to the mounting seat, the placement table is provided with a mounting position for placing the expansion pot, the fixing component is connected to the placement table and is used to fix the expansion pot, the plurality of plugging components are connected to the placement table and correspond to the openings of the expansion pot one by one, the plugging component includes a first cylinder and a first plug, the first cylinder is connected to the placement table, the first cylinder is connected to the first plug and drives the first plug to block the opening of the expansion pot, the air tightness detection component includes a second cylinder, a second plug and a ventilation pipe, the second cylinder is connected to the mounting seat and is located above the placement table, the second cylinder is connected to the second plug and controls the second plug to move vertically and makes the second plug block the detection port at the top of the expansion pot, an air hole is axially arranged in the second plug, the lower end of the air hole forms an air outlet at the bottom end of the second plug, the air hole forms an air inlet on the side wall of the second plug, the ventilation pipe is connected to the air inlet, and the ventilation pipe is externally connected to an air pressure detection device.

[0005] After adopting the above structure, the utility model has the following advantages for an air tightness detection device for an expansion pot: when detecting the air tightness of the expansion pot, the expansion pot is placed on the installation position, fixed by the fixing assembly, and then the first cylinder of each sealing assembly drives the first plug to seal each opening respectively, leaving only the opening at the top of the expansion pot as the detection port, and then the second cylinder drives the second plug to seal the detection port, and the air pressure detection device takes air into the expansion pot through the vent pipe and the air hole, and judges whether there is a leakage in the expansion pot according to the pressure value detected by the air pressure detection device; if the measured pressure value is lower than the qualified pressure value, it is judged that the air tightness of the expansion pot is unqualified, and it is treated as a defective product, so as to prevent the expansion pots with unqualified air tightness from entering the market and being used in automobiles to affect the normal driving of the automobile.

[0006] As an improvement, each first plug is connected to a first sealing gasket; adopting this structure can improve the sealing effect of the first plug on each opening and improve the accuracy of air tightness detection.

[0007] As an improvement, a second sealing gasket is connected to the bottom end of the second plug, and a vertical through hole is provided in the middle of the second sealing gasket, which is connected to the air outlet. This structure improves the sealing effect of the second plug on the detection port and improves the accuracy of air tightness detection.

[0008] As an improvement, the fixed component includes a lifting and rotating cylinder and a limit rod, the lifting and rotating cylinder is connected to the placement table, and the lifting and rotating cylinder is connected to the limit rod and controls the limit rod to abut against the top of the expansion pot; with this structure, the lifting and rotating cylinder has two actions, lifting and rotating. Before placing the expansion pot, the limit rod is set away from the installation position to prevent the limit rod from affecting the placement of the expansion pot. After the expansion pot is placed on the installation position, the lifting and rotating cylinder first drives the limit rod to rotate above the installation position, and then the lifting and rotating cylinder drives the limit rod to press down and abut against the expansion pot, which can prevent the limit rod from contacting the expansion pot during rotation and causing damage to the surface of the expansion pot.

[0009] As an improvement, a base plate is detachably connected to the mounting seat, a placement table is set on the base plate, and several sealing components are connected to the base plate; this structure allows the placement table and the sealing components to move with the base plate, so that different placement tables and sealing components can be connected to the mounting seat to match different types of expansion pots.

[0010] As an improvement, a sensor is connected to the bottom plate for detecting whether the expansion pot is placed in the installation position. When the expansion pot is placed in the installation position, the sensor is set toward the expansion pot. With this structure, the sensor can detect whether the expansion pot is placed in place.

[0011] As an improvement, a marking component is connected to the placement table, and the marking component includes a third cylinder and a marking pen. The third cylinder is connected to the placement table, and the third cylinder is connected to the marking pen and drives the marking pen to leave a mark on the expansion pot. With this structure, after the airtightness test, the third cylinder drives the marking pen to leave a mark on the expansion pot to facilitate the distinction between good products and defective products.

[0012] As an improvement, a fixed block is connected to the mounting seat, the second cylinder is connected to the fixed block, the second plug is connected to a guide rod through the connecting block, and the guide rod is slidably connected in the fixed block; this structure improves the stability of the vertical movement of the second plug, thereby improving the accuracy of air tightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the placement table part in the utility model.

[0015] Figure 3 It is a structural schematic diagram of the airtightness detection component part of the utility model.

[0016] Figure 4 It is a cross-sectional view of the second plug part in the utility model.

[0017] Figure 5 It is a structural schematic diagram of the placement table in the utility model.

[0018] Figure markings: 1. mounting base; 2. placing table; 3. fixing assembly; 31. lifting and rotating cylinder; 32. limiting rod; 4. air tightness detection assembly; 41. second cylinder; 42. second plug; 5. sealing assembly; 51. first cylinder; 52. first plug; 6. mounting position; 7. air hole; 8. air outlet; 9. air inlet; 10. first sealing gasket; 11. second sealing gasket; 12. through hole; 13. bottom plate; 14. sensor; 15. marking assembly; 151. third cylinder; 152. marking pen; 16. fixing block; 17. connecting block; 18. guide rod. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown, an expansion pot air tightness detection device comprises a mounting base 1, a placement table 2, a fixing component 3, an air tightness detection component 4 and a plurality of blocking components 5, wherein the placement table 2 is connected to the mounting base 1. Figure 1As shown, the front end surface of the mounting seat 1 is provided with a mounting cavity, and the placement platform 2 is connected in the mounting cavity. Specifically, the mounting seat 1 is detachably connected with a bottom plate 13, and the placement platform 2 is erected on the bottom plate 13 through a plurality of legs. The mounting seat 1 and the bottom plate 13 are detachably connected by bolts, and two handles are provided on the upper end surface of the bottom plate 13 for easy carrying; Figure 5 As shown, the placement table 2 is provided with a mounting position 6 for placing the expansion pot, and the mounting position 6 is a hole arranged on the placement table 2 and passing through the placement table 2. When the expansion pot is placed in the mounting position 6, the lower half of the expansion pot is located below the placement table 2, and the flange of the expansion pot arranged along the circumferential direction abuts against the upper surface of the placement table 2. That is to say, the expansion pot is placed on the placement table 2 through the flange, and its lower half is located below the placement table 2 through the mounting position 6, and its upper half is located above the placement table 2. Figure 2 shown.

[0021] like Figure 2 As shown, several sealing components 5 are connected to the placement table 2 and correspond to the openings of the expansion pot one by one. The sealing components 5 include a first cylinder 51 and a first plug 52. The first cylinder 51 is connected to the placement table 2. The first cylinder 51 is connected to the first plug 52 and drives the first plug 52 to block the opening of the expansion pot. The openings of the expansion pot in this embodiment are distributed as follows: two at the bottom and one at the top. Therefore, two groups of sealing components 5 are correspondingly arranged in this example, and the sealing components 5 are all connected to the bottom plate 13, that is, the sealing components 5 are located below the expansion pot, the first cylinder 51 is connected to the bottom plate 13, the two groups of sealing components 5 correspond to the two openings at the bottom, and the opening at the top is used as a detection port. In addition, each first plug 52 is connected to a first sealing gasket 10, and the first sealing gasket 10 is specifically used to seal the opening.

[0022] like Figure 1 and Figure 3 As shown, the air tightness detection component 4 includes a second cylinder 41, a second plug 42 and a ventilation pipe (not shown in the figure), the second cylinder 41 is connected to the mounting seat 1 and is located above the placement table 2, specifically, the second cylinder 41 is connected to the side wall of the mounting cavity, the second cylinder 41 is connected to the second plug 42 and controls the vertical movement of the second plug 42 and makes the second plug 42 block the detection port at the top of the expansion pot, the mounting seat 1 is connected to a fixed block 16, the fixed block 16 is connected to the side wall of the mounting cavity, the second cylinder 41 is connected to the fixed block 16, the second plug 42 is connected to the guide rod 18 through the connecting block 17, and the guide rod 18 is slidably connected in the fixed block 16; as shown Figure 4As shown, an air hole 7 is axially provided in the second plug 42, and an air outlet 8 is formed at the lower end of the air hole 7 at the bottom end of the second plug 42. The air hole 7 forms an air inlet 9 on the side wall of the second plug 42. The air pipe is connected to the air inlet 9. A second sealing gasket 11 is connected to the bottom end of the second plug 42. A vertical through hole 12 is provided in the middle of the second sealing gasket 11. The through hole 12 is connected to the air outlet 8. The air pipe is externally connected to an air pressure detection device. The specific structure and working principle of the air pipe and the air pressure detection device are all existing technologies and will not be repeated here.

[0023] like Figure 2 As shown, the fixing component 3 is connected to the placing table 2 and is used to fix the expansion pot. The fixing component 3 includes a lifting and rotating cylinder 31 and a limiting rod 32. The lifting and rotating cylinder 31 is connected to the placing table 2, and the lifting and rotating cylinder 31 is connected to the limiting rod 32 and controls the limiting rod 32 to abut against the top of the expansion pot.

[0024] like Figure 2 As shown, a sensor 14 for detecting whether the expansion pot is placed in the installation position 6 is connected to the bottom plate 13. When the expansion pot is placed in the installation position 6, the sensor 14 is set toward the expansion pot. In this embodiment, two sensors 14 are provided in total, and the sensor 14 can be optionally a distance sensor.

[0025] like Figure 2 As shown, a marking component 15 is connected to the placement table 2, and the marking component 15 includes a third cylinder 151 and a marking pen 152. The third cylinder 151 is connected to the placement table 2, and the third cylinder 151 is connected to the marking pen 152 and drives the marking pen 152 to leave a mark on the expansion pot; the third cylinder 151 and the air pressure detection device are electrically connected to the control system. After the air pressure detection device completes the detection, the third cylinder 151 automatically moves to leave a mark on the defective product.

[0026] When testing the air tightness of the expansion pot, the expansion pot is placed on the installation position 6, and the expansion pot is fixed by the fixing component 3. Then the first cylinder 51 of each sealing component 5 drives the first plug 52 to seal each opening respectively, leaving only the opening at the top of the expansion pot as the detection port. Thereafter, the second cylinder 41 drives the second plug 42 to seal the detection port. The air pressure detection device draws air into the expansion pot through the vent pipe and the air hole 7. The pressure value detected by the air pressure detection device is used to determine whether there is a leak in the expansion pot. If the measured pressure value is lower than the qualified pressure value, the air tightness of the expansion pot is determined to be unqualified and it is treated as a defective product to prevent expansion pots with unqualified air tightness from entering the market and being used in automobiles to affect the normal driving of the automobile.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. An expansion pot air tightness detection device, characterized in that: The invention comprises a mounting seat (1), a placing platform (2), a fixing component (3), an airtightness detection component (4) and a plurality of blocking components (5), wherein the placing platform (2) is connected to the mounting seat (1), the placing platform (2) is provided with a mounting position (6) for placing an expansion pot, the fixing component (3) is connected to the placing platform (2) and is used to fix the expansion pot, a plurality of blocking components (5) are connected to the placing platform (2) and correspond one to one to the openings of the expansion pot, the blocking components (5) comprise a first cylinder (51) and a first plug (52), the first cylinder (51) is connected to the placing platform (2), the first cylinder (51) is connected to the first plug (52) and drives the first plug (52) to block the opening of the expansion pot The air tightness detection component (4) comprises a second cylinder (41), a second plug (42) and a vent pipe, the second cylinder (41) is connected to the mounting seat (1) and is located above the placement table (2), the second cylinder (41) is connected to the second plug (42) and controls the vertical movement of the second plug (42) so that the second plug (42) blocks the detection port at the top of the expansion pot, an air hole (7) is axially arranged in the second plug (42), the lower end of the air hole (7) forms an air outlet (8) at the bottom end of the second plug (42), the air hole (7) forms an air inlet (9) on the side wall of the second plug (42), the vent pipe is connected to the air inlet (9), and the vent pipe is externally connected to an air pressure detection device.

2. The air tightness detection device for an expansion pot according to claim 1, characterized in that: Each of the first plugs (52) is connected to a first sealing gasket (10).

3. The air tightness detection device for an expansion pot according to claim 1, characterized in that: The bottom end of the second plug (42) is connected to a second sealing gasket (11), and a through hole (12) arranged vertically is provided in the middle of the second sealing gasket (11), and the through hole (12) is connected to the air outlet (8).

4. The air tightness detection device for an expansion pot according to claim 1, characterized in that: The fixing assembly (3) comprises a lifting and rotating cylinder (31) and a limiting rod (32); the lifting and rotating cylinder (31) is connected to the placing platform (2); the lifting and rotating cylinder (31) is connected to the limiting rod (32) and controls the limiting rod (32) to abut against the top of the expansion pot.

5. The air tightness detection device for an expansion pot according to claim 1, characterized in that: The mounting seat (1) is detachably connected to a bottom plate (13), the placement platform (2) is mounted on the bottom plate (13), and a plurality of the blocking components (5) are all connected to the bottom plate (13).

6. The air tightness detection device for an expansion pot according to claim 5, characterized in that: The bottom plate (13) is connected to a sensor (14) for detecting whether the expansion pot is placed in the installation position (6); when the expansion pot is placed in the installation position (6), the sensor (14) is arranged toward the expansion pot.

7. The air tightness detection device for an expansion pot according to claim 1, characterized in that: The placement table (2) is connected to a marking component (15), the marking component (15) comprising a third cylinder (151) and a marking pen (152), the third cylinder (151) being connected to the placement table (2), the third cylinder (151) being connected to the marking pen (152) and driving the marking pen (152) to leave a mark on the expansion pot.

8. The air tightness detection device for an expansion pot according to claim 1, characterized in that: The mounting seat (1) is connected to a fixing block (16), the second cylinder (41) is connected to the fixing block (16), the second plug (42) is connected to a guide rod (18) via a connecting block (17), and the guide rod (18) is slidably connected in the fixing block (16).

Images