Device for detecting sealing performance of motor breather valve by using leak detector

Abstract

The utility model relates to the technical field of machinery, in particular to a device for detecting the sealing performance of a motor breather valve by using a leak detector, which comprises the leak detector, a water tank, a valve, a digital pressure gauge, a water drainage container, a sealing clamp and a fixing clamp, an air inlet pipe of the leak detector is connected with an air source, an air outlet pipe of the leak detector is connected with one end of the water tank, and the water tank is provided with a sealing cover. The other end of the water tank is connected with the sealing clamp through a first water pipe, a first valve and a digital pressure gauge are installed on the first water pipe, the first water pipe is connected with the water drainage container through a second water pipe, a second valve is installed on the second water pipe, the sealing clamp is installed outside the motor upper cover and connected with the motor ventilation valve, and the motor upper cover is installed on the fixing clamp. Compared with the prior art, the leak detector is adopted to provide a stable air source for the leakproofness detection device, and the detection is safer and more stable while the leakproofness detection requirement of the ventilation valve of the motor is met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically a device for detecting the sealing performance of a motor vent valve using a leak detector. Background Technology

[0002] Currently, existing leak detectors can test the sealing performance of motors through their vent valves. However, these detectors cannot test the sealing performance of the motor's vent valves, thus failing to meet the requirements for vent valve sealing performance testing.

[0003] Therefore, it is necessary to design a device that uses a leak detector to test the sealing performance of the motor's vent valve, in order to meet the requirement of testing the sealing performance of the motor's vent valve. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for testing the sealing performance of a motor vent valve using a leak detector, so as to meet the need for testing the sealing performance of a motor vent valve.

[0005] To achieve the above objectives, this utility model is a device for detecting the sealing performance of a motor vent valve using a leak detector. It includes a leak detector, a water tank, a valve, a digital pressure gauge, a drain container, a sealing clamp, and a fixing clamp. The leak detector's inlet pipe is connected to an air source, and its outlet pipe is connected to one end of the water tank. The water tank has a sealing cover. The other end of the water tank is connected to the sealing clamp via a water pipe. A valve and a digital pressure gauge are installed on the water pipe. The water pipe is connected to the drain container via a water pipe, and a valve is installed on the water pipe. The sealing clamp is installed outside the motor cover and connected to the motor vent valve. The motor cover is installed on the fixing clamp.

[0006] The sealing fixture includes a connecting fixture, a two-way valve, a first pressure block, a second pressure block, and screws. After the screws pass through the mounting hole of the first pressure block, they are connected to the second pressure block. The bottom of the side of the second pressure block facing the first pressure block has a boss, which fastens the fixing fixture. The bottom of the first pressure block is equipped with a connecting fixture. One end of the connecting fixture near the second pressure block is connected to the motor vent valve, and the other end of the connecting fixture is equipped with a two-way valve, which is connected to the first water pipe.

[0007] There are two valves, installed on both sides of the digital pressure gauge.

[0008] The water pipe includes a hard water pipe and a soft water pipe. One end of the hard water pipe is connected to a water tank, and the other end of the hard water pipe is equipped with a soft water pipe. The soft water pipe is connected to a two-way valve.

[0009] The second water pipe is a soft water pipe.

[0010] The aforementioned fixing clamp and sealing clamp are located inside a transparent safety box.

[0011] The fixing fixture includes a fixture base, a lower clamp, an upper clamp, and fasteners. The fixture base is installed at the bottom of the lower clamp. The lower clamp and the upper clamp are sleeved on the outside of the motor cover and are connected by fasteners.

[0012] The water pipe is horizontally installed on a pipe support, and the bottom of the pipe support is fixed on the tooling table.

[0013] The tooling table and leak detector are located on top of the table.

[0014] The diameter of the connecting fixture is matched with the motor vent valve.

[0015] Compared with existing technologies, this invention uses a leak detector to provide a stable air source for the sealing test device, which not only meets the sealing test requirements of the motor's vent valve but also makes the test safer and more stable. By changing the fixing fixture and sealing fixture, it can be adapted to the motor cover and motor vent valve of different motor products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the fixing clamp of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the sealing clamp of this utility model from the rear view.

[0019] Figure 4 This is a structural schematic diagram of the sealing clamp of this utility model from the front view.

[0020] Figure 5 This is an assembly diagram of the fixing clamp, sealing clamp, and motor cover of this utility model.

[0021] Figure 6 This is an assembly cross-sectional view of the fixing clamp, sealing clamp, and motor cover of this utility model. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] See Figure 1 , Figure 5This utility model is a device for testing the sealing performance of a motor vent valve using a leak detector. It includes a leak detector, a water tank, a valve, a digital pressure gauge, a drain container, a sealing clamp, and a fixing clamp. The air inlet pipe of the leak detector 1 is connected to an air source, and the air outlet pipe of the leak detector 1 is connected to one end of the water tank 2. The water tank 2 has a sealing cover. The other end of the water tank 2 is connected to the sealing clamp 9 by a water pipe 3. A valve 4 and a digital pressure gauge 5 are installed on the water pipe 3. The water pipe 3 is connected to the drain container 6 by a water pipe 7. A valve 8 is installed on the water pipe 7. The sealing clamp 9 is installed outside the motor cover 11 and connected to the motor vent valve 10. The motor cover 11 is installed on the fixing clamp 12.

[0024] In order to test the sealing performance of the motor vent valve 10 without damaging the motor vent valve 10 and the structural parts mechanically connected to it, and to be able to observe the test results of the sealing performance, the motor needs to be disassembled before the test. The motor cover 11, including the motor vent valve 10 and the structural parts mechanically connected to it, is used to test the sealing performance.

[0025] See Figure 3 , Figure 4 , Figure 6 The sealing fixture 9 includes a connecting fixture 91, a two-way valve 92, a first pressure block 93, a second pressure block 94, and a screw 95. The screw 95 passes through the mounting hole of the first pressure block 93 and connects to the second pressure block 94. The bottom of the side of the second pressure block 94 facing the first pressure block 93 has a boss 941, which fastens the fixing fixture 12. The bottom of the first pressure block 93 is equipped with the connecting fixture 91. One end of the connecting fixture 91 near the second pressure block 94 is connected to the motor vent valve 10, and the other end of the connecting fixture 91 is equipped with the two-way valve 92, which is connected to the water pipe 3.

[0026] There are two valves, numbered 4, installed on both sides of the digital pressure gauge 5.

[0027] Water pipe 3 includes a hard water pipe and a soft water pipe. One end of the hard water pipe is connected to the water tank 2, and the other end of the hard water pipe is fitted with the soft water pipe. The soft water pipe is connected to the two-way valve 92. Water pipe 7 is the soft water pipe.

[0028] The fixing clamp 12 and the sealing clamp 9 are located inside the transparent safety box 13 to further improve safety.

[0029] See Figure 2 The fixing fixture 12 includes a fixture base 121, a lower clamp 122, an upper clamp 124, and a fastener 123. The fixture base 121 is installed at the bottom of the lower clamp 122. The lower clamp 122 and the upper clamp 124 are sleeved on the motor cover 11. The lower clamp 122 and the upper clamp 124 are connected by the fastener 123.

[0030] Water pipe 3 is horizontally installed on pipe support 14, and the bottom of pipe support 14 is fixed on tooling table 15 to keep water pipe 3 horizontal and maintain stable water pressure inside water pipe 3. Tooling table 15 and leak detector 1 are located on top of table 16.

[0031] The diameter of the connecting tool 91 matches that of the motor vent valve 10.

[0032] When this utility model is in operation, first open the transparent safety box 13, fix the motor cover 11 with the fixing clamp 12, then install the sealing clamp 9, tighten the screw 95 so that the pressure block 1 93 and pressure block 2 94 assemble the connecting tool 91 and the motor vent valve 10 into place, and the soft water pipe 1 is assembled with the two-way valve 92, the connecting tool 91 and the motor vent valve 10 through the two-way valve 92, and then close the transparent safety box 13.

[0033] Next, open both valves 4 on water pipe 3 and close valve 8 on water pipe 7. Open the sealing cap of water tank 2, add pure water to the 10cm mark, observe the reading on digital pressure gauge 5, and tighten the sealing cap of water tank 2 after confirming that it is correct.

[0034] Next, confirm that the leak detector 1 is correctly connected to the air source, set the air pressure and holding time of the leak detector 1, and start operation. Simultaneously observe the display value of the digital pressure gauge 5 to confirm whether it matches the set pressure of the leak detector 1. If the display value of the digital pressure gauge 5 matches the set pressure of the leak detector 1, it indicates that the installation and settings are correct. Then, for the side of the motor vent valve 10 without the sealing clamp 9, visually inspect for water stains to determine if the motor vent valve's sealing performance is up to standard. If necessary, use water-reflecting test paper; if water seeps through the vent valve, the water-reflecting test paper will change color upon contact with water to prevent errors in visual inspection.

[0035] Finally, after the test is complete, open the sealing cap of water tank 2 to equalize the internal and external pressure. Open valve 2 (8), and the pure water in the water pipe and water tank 2 will automatically flow into the drain container 6. After all the pure water has flowed into the drain container 6, close both valves (4). For the next test, pour the pure water from the drain container 6 back into water tank 2, allowing the pure water to be recycled.

[0036] This invention utilizes a leak detector to provide a stable air source for the sealing test device, meeting the requirements for sealing tests on motor vent valves while also making the test safer and more stable. By changing the fixing clamp and sealing clamp, it can be adapted to motor covers and motor vent valves of different motor products.

Claims

1. A device for detecting the sealing performance of a motor vent valve using a leak detector, comprising a leak detector, a water tank, a valve, a digital pressure gauge, a drain container, a sealing clamp, and a fixing clamp, characterized in that: The air inlet pipe of the leak detector (1) is connected to the air source, and the air outlet pipe of the leak detector (1) is connected to one end of the water tank (2). The water tank (2) has a sealing cover. The other end of the water tank (2) is connected to the sealing clamp (9) by a water pipe (3). A valve (4) and a digital pressure gauge (5) are installed on the water pipe (3). The water pipe (3) is connected to the drain container (6) by a water pipe (7). A valve (8) is installed on the water pipe (7). The sealing clamp (9) is installed outside the motor cover (11) and connected to the motor vent valve (10). The motor cover (11) is installed on the fixing clamp (12). The sealing fixture (9) includes a connecting fixture (91), a two-way valve (92), a pressure block one (93), a pressure block two (94), and a screw (95). The screw (95) passes through the mounting hole of the pressure block one (93) and connects to the pressure block two (94). The bottom of the side of the pressure block two (94) facing the pressure block one (93) is provided with a boss (941). The boss (941) fastens the fixing fixture (12). The bottom of the pressure block one (93) is equipped with a connecting fixture (91). One end of the connecting fixture (91) near the pressure block two (94) is connected to the motor vent valve (10). The other end of the connecting fixture (91) is equipped with a two-way valve (92). The two-way valve (92) is connected to the water pipe one (3).

2. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: There are two valves (4), which are installed on both sides of the digital pressure gauge (5).

3. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The water pipe (3) includes a hard water pipe and a soft water pipe. One end of the hard water pipe is connected to the water tank (2), and the other end of the hard water pipe is equipped with a soft water pipe. The soft water pipe is connected to a two-way valve (92).

4. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The water pipe 2 (7) is a soft water pipe 2.

5. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The fixing clamp (12) and sealing clamp (9) are located inside the transparent safety box (13).

6. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The fixing clamp (12) includes a clamp base (121), a lower clamp (122), an upper clamp (124), and a fastener (123). The clamp base (121) is installed at the bottom of the lower clamp (122). The lower clamp (122) and the upper clamp (124) are sleeved on the motor cover (11). The lower clamp (122) and the upper clamp (124) are connected by the fastener (123).

7. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The water pipe (3) is horizontally installed on the pipe support (14), and the bottom of the pipe support (14) is fixed on the tooling table (15).

8. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 7, characterized in that: The tooling table (15) and the leak detector (1) are located on top of the table (16).

9. The device for detecting the sealing performance of a motor vent valve using a leak detector according to claim 1, characterized in that: The aperture of the connecting fixture (91) is matched with that of the motor vent valve (10).

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