Heater water pump air tightness test tool

Abstract

The utility model provides a kind of heater water pump air tightness test tool, including support plate, fixed plugging mechanism, mobile plugging mechanism and gas supply mechanism;The fixed plugging mechanism is arranged at one end of the support plate, the mobile plugging mechanism is retractably arranged at the other end of the support plate, the mobile plugging mechanism is used to push heater water pump to move, so that one end of the heater water pump is tightly and fixed on the fixed plugging mechanism, the other end of the heater water pump is stuffed in the mobile plugging mechanism;The gas supply mechanism is installed on the mobile plugging mechanism, for filling compressed air into the heater water pump. The heater water pump air tightness test tool can quickly realize the quick sealing and release of water pump inlet and outlet, and simultaneously facilitate inflating into the heater water pump cavity to meet the needs of air tightness test.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing equipment, specifically, to a fixture for testing the airtightness of a heater or water pump. Background Technology

[0002] In the pre-processing stage of forced circulating water heaters, the airtightness of the water pump needs to be tested. This test requires sealing the pump's inlet and outlet, while leaving an air vent at one end to inflate the pump cavity with air. The pressure is maintained for a period to detect any leakage, thus determining whether the pump's airtightness is up to standard. Therefore, a fixture capable of both sealing the pump's inlet and outlet and inflating the pump cavity has become an urgent testing requirement.

[0003] Utility model patent CN222784275U discloses a water pump airtightness testing device, including a sealing mechanism, a pressurizing mechanism, and a limiting mechanism. The sealing mechanism includes a sealing pool, a clamping member connected to the bottom of the sealing pool's inner cavity, and a central support fixed in the middle of the sealing pool's inner cavity. The pressurizing mechanism includes side support blocks installed on both sides of the sealing pool's exterior and support rods installed on the side support blocks. This water pump airtightness testing device seals the water pump with a sealing plate and semi-suspends it inside the sealing pool, avoiding the influence of the sealing pool's inner wall on the test, making the test more comprehensive. Simultaneously, a lower pressure plate increases the pressure inside the sealing pool, and a pressure gauge continuously monitors the pressure inside the sealing pool. Therefore, the water pump's airtightness can be determined based on pressure changes. The structure is simple; before use, a module of the same volume as the water pump is placed in the sealing pool for pressure change calibration, allowing testing of any type of water pump and broad applicability. However, the disclosed structure of this water pump airtightness testing device does not feature rapid sealing and desealing, nor can it perform sealing and inflation operations simultaneously. Utility Model Content

[0004] In order to quickly seal and release the inlet and outlet of the water pump and facilitate the testing of the water pump's sealing performance, the technical solution adopted by this utility model is: a heater water pump air tightness testing fixture, including a support plate, a fixed sealing mechanism, a movable sealing mechanism and an air supply mechanism. The fixed sealing mechanism is located at one end of the support plate, and the movable sealing mechanism is telescopically located at the other end of the support plate. The movable sealing mechanism is used to push the heater water pump to move, so that the limiting end of the heater water pump is pressed against and fixed on the fixed sealing mechanism, and the air charging end of the heater water pump is filled into the movable sealing mechanism. The air supply mechanism is installed on the movable sealing mechanism and is used to supply compressed air to the heater water pump.

[0005] Based on the above, the fixed sealing mechanism includes a limiting seat, a sealing gasket, and a limiting post. The sealing gasket and the limiting post are respectively disposed on the side of the limiting seat and face the movable sealing mechanism. The limiting post is used to limit the limiting end of the heater water pump, and the sealing gasket is used to press and seal the limiting end of the heater water pump.

[0006] Beneficial effects: By setting a pair of limiting posts on the limiting seat, the limiting seat can be inserted into the first water pump flange on one side of the water pump during the water pump sealing test to fix and limit the water pump, thus preventing the water pump from shaking during the test.

[0007] Based on the above, the movable sealing mechanism includes a cylinder and a plug. The plug is disposed at the telescopic end of the cylinder. The cylinder is used to push the plug to move so that the air-filling end of the heater water pump fills the plug.

[0008] Based on the above, the air supply mechanism includes an air supply channel opened in the plug and an air pipe connector provided on the plug, wherein the air pipe connector is connected to the air supply channel and is externally connected to compressed air.

[0009] Based on the above, a pad is provided on the support plate, which is used to adjust the placement height of the heater water pump.

[0010] Based on the above, the plug and the sealing gasket are arranged opposite to each other, and the installation height of the plug is the same as the installation height of the sealing gasket.

[0011] Beneficial effect: By setting shims on the support plate, the sealing test requirements of different models of water pumps can be met by replacing shims of different sizes without changing the height of the plug and limit seat.

[0012] Based on the above, a support leg is provided at the bottom of the support plate. The support leg is used to adjust the height of the support plate so that the heater water pump is horizontally clamped between the fixed sealing mechanism and the movable sealing mechanism.

[0013] Based on the above, a housing is also provided on the support plate, the cylinder is disposed in the housing, and a manual valve for controlling the extension and retraction of the cylinder is provided on the housing.

[0014] This utility model has substantial features and advancements compared to existing technologies. Specifically, the utility model provides a heater water pump air tightness testing fixture. By analyzing the structure of existing heater water pumps, a mechanical structure including a support plate, a fixed sealing mechanism, and a movable sealing mechanism is designed. The movable sealing mechanism can use its telescopic movement to seal and clamp the heater water pump between the fixed sealing mechanism and the movable sealing mechanism, facilitating the inflation and pressure maintenance of the heater water pump for leak detection. The entire operation process is convenient and quick.

[0015] Furthermore, by setting a pair of limiting posts on the limiting seat, the limiting seat can be inserted into the first pump flange on one side of the pump during the water pump sealing test to fix and limit the pump, thus preventing the pump from shaking during the test.

[0016] Furthermore, by setting shims on the support plate, the sealing test requirements of different models of water pumps can be met by replacing shims of different sizes without changing the height of the plug and the limit seat.

[0017] Therefore, this heater-water pump airtightness testing fixture can quickly seal and release the water pump inlet and outlet, facilitating the testing of the water pump's sealing performance. Attached Figure Description

[0018] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of a heater and water pump air tightness testing fixture provided by this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of a heater / water pump airtightness testing fixture provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the working state of a heater / water pump airtightness testing fixture provided by this utility model.

[0021] In the diagram: 1. Manual valve; 2. Housing; 3. Through-plate pipe connector; 4. Plug; 5. First air pipe connector; 6. Gasket; 7. Limit seat; 8. Limit post; 9. Sealing gasket; 10. Cylinder; 11. Speed ​​control valve; 12. Second air pipe connector; 13. First water pump flange; 14. Second water pump flange; 15. Support plate; 16. Heater water pump. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] Example 1 This embodiment provides a fixture for testing the airtightness of a heater and water pump, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the system includes a support plate 15, a fixed sealing mechanism, a movable sealing mechanism, and an air supply mechanism. The fixed sealing mechanism is located at one end of the support plate 15, and the movable sealing mechanism is telescopically located at the other end of the support plate. The movable sealing mechanism is used to push the heater water pump 16 to move, so that the limiting end of the heater water pump 16 is pressed against and fixed on the fixed sealing mechanism, and the air supply end of the heater water pump 16 is filled into the movable sealing mechanism.

[0024] The air supply mechanism is installed on the movable sealing mechanism and is used to supply compressed air to the heater water pump 16.

[0025] Specifically, such as Figure 1 As shown, the fixed sealing mechanism includes a limiting seat 7, a sealing gasket 9, and a pair of limiting posts 8. The sealing gasket 9 and the limiting posts 8 are respectively disposed on the side of the limiting seat 7 and face the movable sealing mechanism. The limiting posts 8 are used to limit the limiting end of the heater water pump 16. The sealing gasket 9 is used to provide a top pressure seal to the limiting end of the heater water pump 16.

[0026] like Figure 3 As shown, the movable sealing mechanism includes a cylinder 10 and a plug 4. The plug 4 is located at the telescopic end of the cylinder 10, and the cylinder 10 is used to push the plug 4 to move so that the air-filling end of the heater water pump 16 fills the plug 4. The air supply mechanism includes an air supply channel opened in the plug 4 and a first air pipe connector 5 provided on the plug. The first air pipe connector 5 is connected to the air supply channel and is externally connected to compressed air.

[0027] The support plate is further provided with a housing 2, and the cylinder 10 is disposed within the housing 2. A manual valve 1 for controlling the extension and retraction of the cylinder 10 is provided on the housing 2. A second air pipe connector 12 and a through-plate pipe connector 3 are also provided on the housing 2. A first water pump flange 13 is connected to the limiting end of the heater water pump, and a second water pump flange 14 is connected to the air charging end of the heater water pump. The first water pump flange 13 cooperates with the limiting post 8. The second water pump flange 14 cooperates with the plug 4. A speed regulating valve 11 is provided on the cylinder 10.

[0028] Example 2 This embodiment provides a heater water pump air tightness testing fixture. The main difference from Embodiment 1 is that in this embodiment, a pad 6 is provided on the support plate 15, and the pad 6 is used to adjust the placement height of the heater water pump 16.

[0029] Example 3 This embodiment provides a heater / water pump airtightness testing fixture. The main difference from Embodiment 1 is that in this embodiment: the plug 4 and the sealing gasket 9 are arranged opposite each other, and the installation height of the plug 4 is the same as the installation height of the sealing gasket 9. The bottom of the support plate 15 is provided with support legs, which are used to adjust the height of the support plate so that the heater / water pump is horizontally clamped between the fixed sealing mechanism and the movable sealing mechanism.

[0030] Specifically, the specific operating steps for using the heater / water pump airtightness testing fixture provided by this utility model are as follows: like Figure 4 As shown, connect the air source to the through-plate pipe connector 3, rotate the manual valve 1 clockwise, and the cylinder 10 will move the plug 4 to the right, placing the heater water pump 16 on the pad 6. Move the pump along the pad 6 towards the limit seat 7, inserting the limit pin 8 into the mounting hole on the first water pump flange 13. Then, rotate the manual valve 1 counterclockwise, and the cylinder 10 will move the plug 4 to the left. After the cylinder reaches its position, the plug 4 and the sealing gasket 9 on the limit seat 7 seal the inlet and outlet of the water pump.

[0031] The airtightness testing equipment pressurizes the heater / pump cavity with air through the air supply channel inside the plug, maintains pressure, and detects leaks. After the test, rotating manual valve 1 clockwise activates the cylinder, causing the plug to move to the right and be removed, ready to test the next product.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A heater water pump air tightness test tool, characterized in that: Includes a support plate, a fixed sealing mechanism, a movable sealing mechanism, and a gas supply mechanism; The fixed sealing mechanism is disposed at one end of the support plate, and the movable sealing mechanism is retractably disposed at the other end of the support plate. The movable sealing mechanism is used to push the heater water pump to move, so that the limiting end of the heater water pump is pressed against and fixed on the fixed sealing mechanism, and so that the air charging end of the heater water pump is filled into the movable sealing mechanism. The air supply mechanism is installed on the movable sealing mechanism and is used to supply compressed air to the heater water pump.

2. The heater water pump air tightness test tool of claim 1, wherein: The fixed sealing mechanism includes a limiting seat, a sealing gasket, and a limiting post. The sealing gasket and the limiting post are respectively disposed on the side of the limiting seat and face the movable sealing mechanism. The limiting post is used to limit the limiting end of the heater water pump, and the sealing gasket is used to press and seal the limiting end of the heater water pump.

3. The heater water pump air tightness test tool of claim 2, wherein: The movable sealing mechanism includes a cylinder and a plug. The plug is located at the telescopic end of the cylinder. The cylinder is used to push the plug to move so that the air-filling end of the heater water pump fills the plug.

4. The heater water pump air tightness test tool of claim 3, wherein: The air supply mechanism includes an air supply channel opened in the plug and an air pipe connector installed on the plug. The air pipe connector is connected to the air supply channel and is externally connected to compressed air.

5. The heater water pump air tightness test tool of claim 1 or 2 or 3 or 4, wherein: The support plate is provided with pads, which are used to adjust the placement height of the heater and water pump.

6. The heater water pump air tightness test tool of claim 3 or 4, wherein: The plug is positioned opposite to the sealing gasket, and the installation height of the plug is the same as the installation height of the sealing gasket.

7. The heater water pump air tightness test tool of claim 1, wherein: The bottom of the support plate is provided with a support leg, which is used to adjust the height of the support plate so that the heater water pump is horizontally clamped between the fixed sealing mechanism and the movable sealing mechanism.

8. The heater water pump air tightness test tool of claim 3 or 4, wherein: The support plate is also provided with a housing, the cylinder is disposed in the housing, and the housing is provided with a manual valve for controlling the extension and retraction of the cylinder.

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