Stable idling automobile water pump leakproofness detection device

Abstract

The utility model relates to the technical field of water pump leakproofness detection, and especially relates to a stable idling automobile water pump leakproofness detection device comprising a fixed frame; the automobile water pump body is fixedly installed in the fixing frame, the water outlet end and the water inlet end of the automobile water pump body are connected with a water outlet pipe and a water inlet pipe through flanges correspondingly, and installation blocks slidably penetrate through the water outlet end and the water inlet end of the automobile water pump body and the tops of the water outlet pipe and the water inlet pipe correspondingly. The pressure sensor can be pressed through the impact of water flow in the automobile water pump body on the stress column, so that the water flow can be prevented from being in direct contact with the pressure sensor, the risk that the pressure sensor breaks down and is damaged is reduced, meanwhile, the pressure sensor is easy to disassemble, assemble and replace, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of water pump sealing test technology, and in particular to a device for testing the sealing of a car water pump at stable idling speed. Background Technology

[0002] Inside the cylinder block of a car engine, there are multiple water channels for cooling water circulation. These channels are connected to the radiator (commonly known as the water tank) located at the front of the car via water pipes, forming a large water circulation system. At the upper outlet of the engine, there is a water pump that is driven by a fan belt to pump hot water out of the engine block's water channels and pump cold water in. Therefore, it plays a crucial role in the engine cooling system, and its airtightness directly affects the engine's operating temperature and overall performance.

[0003] Currently, water pump sealing tests are generally conducted at high engine speeds or idling speeds. However, when testing water pump sealing at engine idling speeds, two pressure sensors are typically used to measure whether the pressure values ​​at the water pump inlet and outlet are consistent. In this test, the pressure sensors are usually in direct contact with the water flow. Even waterproof pressure sensors will have an increased risk of failure and damage after prolonged contact with water. Furthermore, once damaged, they are not easy to disassemble and replace, making them less practical. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the background art by proposing a stable idling speed automotive water pump sealing test device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for testing the sealing performance of a car water pump at stable idling speed, comprising:

[0007] Fixed frame;

[0008] The car water pump body is fixedly installed in the fixed frame. The water outlet end and water inlet end of the car water pump body are respectively connected to the water outlet pipe and the water inlet pipe through flanges. The top of the water outlet end and the water inlet end of the car water pump body, as well as the top of the water outlet pipe and the water inlet pipe, are all slidably penetrated by mounting blocks.

[0009] Four detection components are installed in four mounting blocks respectively, and are used to detect the water pressure at the outlet and inlet of the car water pump body, as well as in the outlet and inlet pipes.

[0010] A fixing component is used to fix the mounting block inside the outlet and inlet ends of the car water pump body, as well as inside the outlet and inlet pipes.

[0011] Preferably, the detection assembly includes a detection box fixedly installed at the bottom of the mounting block, a pressure sensor fixedly installed inside the detection box, a stress column fixedly installed on the surface of the pressure sensor, and the stress column movably penetrates the inner wall of the detection box, an arc-shaped sealing plate fixedly installed on the top of the mounting block, a pressure gauge fixedly installed on the top of the arc-shaped sealing plate, and the pressure gauge is electrically connected to the corresponding pressure sensor.

[0012] Preferably, the fixing assembly includes multiple sets of pressure rods that abut against the top of each arc-shaped sealing plate, and each set of pressure rods consists of two rods that symmetrically abut against the top of the same arc-shaped sealing plate. A movable plate is fixedly installed on the top of the multiple pressure rods, and an electric push rod for driving the movable plate to rise and fall is fixedly installed on the top of the fixing frame.

[0013] Preferably, a rubber sealing ring is fixedly fitted on the surface of each stress column, and the rubber sealing ring is fixedly installed on the surface of the corresponding detection box.

[0014] Preferably, a rubber sealing gasket is fixedly installed at the bottom of each of the arc-shaped sealing plates.

[0015] Preferably, the top of the water outlet and water inlet of the car water pump body, as well as the top of the water outlet pipe and water inlet pipe, are provided with mounting holes, and the mounting holes are slidably connected to the mounting block.

[0016] Preferably, a support block is fixedly installed between the inner bottom wall of the fixed frame and the bottom of the car water pump body.

[0017] Compared with existing technologies, the advantages of the stable idling speed automotive water pump sealing performance testing device provided by this utility model are as follows:

[0018] The water flowing through the car water pump body impacts the stress column, which can put pressure on the pressure sensor, thereby avoiding direct contact between the water flow and the pressure sensor and reducing the risk of pressure sensor 7 failure and damage.

[0019] The electric push rod controls the moving plate to move each pressure rod up and down, which facilitates the disassembly and replacement of the pressure sensor.

[0020] In summary, this utility model utilizes the impact of water flow within the car water pump body on the stress column to compress the pressure sensor, thereby preventing direct contact between the water flow and the pressure sensor, reducing the risk of pressure sensor malfunction and damage. Furthermore, it facilitates easy disassembly and replacement of the pressure sensor, improving the device's practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a stable idling speed automotive water pump sealing test device proposed in this utility model.

[0022] Figure 2 This is a partial cross-sectional view of a stable idling speed automotive water pump sealing test device proposed in this utility model.

[0023] Figure 3 This is a partial exploded structural diagram of a stable idling speed automotive water pump sealing test device proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the fixed component in a stable idling speed automotive water pump sealing test device proposed in this utility model.

[0025] In the diagram: 1. Fixed frame, 2. Car water pump body, 3. Outlet pipe, 4. Inlet pipe, 5. Mounting block, 6. Detection box, 7. Pressure sensor, 8. Stress column, 9. Arc-shaped sealing plate, 10. Pressure gauge, 11. Pressure rod, 12. Moving plate, 13. Electric push rod, 14. Rubber sealing ring, 15. Rubber sealing gasket, 16. Mounting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1 to 4 A device for testing the sealing performance of a car water pump at stable idling speed, comprising:

[0028] Fixed frame 1; car water pump body 2, fixedly installed inside fixed frame 1, according to the above-mentioned stable idle speed car water pump sealing test device, ensures the stability of car water pump body 2.

[0029] The outlet and inlet ends of the car water pump body 2 are respectively connected to the outlet pipe 3 and inlet pipe 4 via flanges. Mounting blocks 5 slide through the top of the outlet and inlet ends of the car water pump body 2, as well as the top of the outlet pipe 3 and inlet pipe 4. Mounting holes 16 are provided on the top of the outlet and inlet ends of the car water pump body 2, as well as the top of the outlet pipe 3 and inlet pipe 4, and the mounting holes 16 are slidably connected to the mounting blocks 5. An arc-shaped sealing plate 9 is fixedly installed on the top of the mounting blocks 5, and a rubber sealing gasket 15 is fixedly installed on the bottom of each arc-shaped sealing plate 9, which increases the sealing between the arc-shaped sealing plate 9 and the top of the outlet and inlet ends of the car water pump body 2, as well as the outlet pipe 3 and inlet pipe 4, to prevent liquid leakage from the mounting holes 16.

[0030] Four detection components are installed in four mounting blocks 5 respectively, and are used to detect the water pressure at the outlet and inlet ends of the car water pump body 2, as well as in the outlet pipe 3 and inlet pipe 4. The detection components include a detection box 6 fixedly installed at the bottom of the mounting block 5. A pressure sensor 7 is fixedly installed in the detection box 6. A stress column 8 is fixedly installed on the surface of the pressure sensor 7, and the stress column 8 moves through the inner wall of the detection box 6. A rubber sealing ring 14 is fixedly fitted on the surface of each stress column 8, and the rubber sealing ring 14 is fixedly installed on the surface of the corresponding detection box 6 to ensure the sealing between the stress column 8 and the detection box 6.

[0031] A pressure gauge 10 is fixedly installed on the top of the arc-shaped sealing plate 9, and the pressure gauge 10 is electrically connected to the corresponding pressure sensor 7. The pressure gauge 10 can also be connected to an external display to display the result measured by each pressure gauge 10. During testing, the car engine is in an idling state (the water circuit connection between the car engine and the car water pump is existing publicly available technology, which will not be described in detail in this technical solution). Then, the water flowing in the car water pump body 2 will impact the stress column 8, thereby pressurizing the pressure sensor 6, and the pressure of the water flow at that point can be measured and displayed on the corresponding pressure sensor 7. On pressure gauge 10, water flow can be prevented from directly contacting pressure sensor 7, reducing the risk of pressure sensor 7 failure and damage. Finally, by comparing the readings measured by each pressure gauge 10, if the readings of each pressure gauge 10 are different, it indicates that there is a problem with the airtightness of the car water pump body 2 at idle speed. Otherwise, there is no problem with the airtightness. At the same time, the readings of each pressure gauge 10 can also be used to determine whether the problem is with the airtightness of the car water pump body 2 or with the airtightness of the connection between its inlet and outlet ends and the flanges of the inlet pipe 4 and outlet pipe 3, respectively.

[0032] A fixing assembly is used to fix the mounting block 5 inside the outlet and inlet ends of the car water pump body 2, as well as inside the outlet pipe 3 and inlet pipe 4. The fixing assembly includes multiple sets of pressure rods 11 that abut against the top of each arc-shaped sealing plate 9, with two pressure rods 11 in each set symmetrically abutting against the top of the same arc-shaped sealing plate 9. A movable plate 12 is fixedly installed on the top of the multiple pressure rods 11. An electric push rod 13 for driving the movable plate 12 to rise and fall is fixedly installed on the top of the fixing frame 1. If the pressure sensor 7 causes an incident... In case of malfunction or damage, the moving plate 12 can be moved upward by the electric push rod 13, which will move each set of pressure rods 11 upward away from the arc-shaped sealing plate 9. At this time, the mounting block 5 corresponding to the malfunctioning or damaged pressure sensor 7 can be pulled out to quickly complete the disassembly. Conversely, during installation, the mounting block 5 can be inserted into the mounting hole 16, and then the moving plate 12 can be moved downward by the electric push rod 13, so that each set of pressure rods 11 presses against the arc-shaped sealing plate 9 to complete the installation, thus facilitating the disassembly and replacement of the pressure sensor 7.

[0033] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for testing the sealing performance of a stable idling automotive water pump, characterized in that, include: Fixed frame (1); The car water pump body (2) is fixedly installed in the fixed frame (1). The water outlet end and the water inlet end of the car water pump body (2) are respectively connected to the water outlet pipe (3) and the water inlet pipe (4) through flanges. The top of the water outlet end and the water inlet end of the car water pump body (2) as well as the top of the water outlet pipe (3) and the water inlet pipe (4) are all slidably penetrated by the mounting block (5). Four detection components are installed in four mounting blocks (5) respectively, and are used to detect the water flow pressure in the outlet and inlet of the car water pump body (2) and inlet pipe (3) and inlet pipe (4); A fixing component is used to fix the mounting block (5) inside the outlet and inlet ends of the car water pump body (2) and inside the outlet pipe (3) and inlet pipe (4).

2. The stable idling speed automotive water pump sealing test device according to claim 1, characterized in that, The detection assembly includes a detection box (6) fixedly installed at the bottom of the mounting block (5), a pressure sensor (7) fixedly installed inside the detection box (6), a stress column (8) fixedly installed on the surface of the pressure sensor (7), and the stress column (8) movably penetrates the inner wall of the detection box (6). An arc-shaped sealing plate (9) is fixedly installed on the top of the mounting block (5), and a pressure gauge (10) is fixedly installed on the top of the arc-shaped sealing plate (9), and the pressure gauge (10) is electrically connected to the corresponding pressure sensor (7).

3. The stable idling speed automotive water pump sealing test device according to claim 2, characterized in that, The fixing assembly includes multiple sets of pressure rods (11) that abut against the top of each arc-shaped sealing plate (9), and each set of pressure rods (11) consists of two rods that abut against the top of the same arc-shaped sealing plate (9) symmetrically. A movable plate (12) is fixedly installed on the top of the multiple pressure rods (11), and an electric push rod (13) for driving the movable plate (12) to rise and fall is fixedly installed on the top of the fixing frame (1).

4. The stable idling speed automotive water pump sealing test device according to claim 2, characterized in that, Each stress column (8) is fixedly fitted with a rubber sealing ring (14), and the rubber sealing ring (14) is fixedly installed on the surface of the corresponding detection box (6).

5. The stable idling speed automotive water pump sealing test device according to claim 3, characterized in that, A rubber sealing gasket (15) is fixedly installed at the bottom of each of the arc-shaped sealing plates (9).

6. The stable idling speed automotive water pump sealing test device according to claim 1, characterized in that, The top of the water outlet and water inlet of the car water pump body (2), as well as the top of the water outlet pipe (3) and water inlet pipe (4), are provided with mounting holes (16), and the mounting holes (16) are slidably connected to the mounting block (5).

7. The stable idling speed automotive water pump sealing test device according to claim 1, characterized in that, A support block (17) is fixedly installed between the inner bottom wall of the fixed frame (1) and the bottom of the car water pump body (2).

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