Sealing and pressurizing tool of engine oil pressure sensor

Abstract

The utility model provides a sealing pressurization tool of an engine oil pressure sensor. The sealing pressurization tool comprises a pressurization tool body, a limiting tool body and a detection tool body. The lower end of the pressurizing tool is connected with the engine oil pressure sensor, and the upper end of the limiting tool is connected with the engine oil pressure sensor; the detection tool penetrates through the limiting tool to be communicated with the engine oil pressure sensor, and the detection tool is controlled through a control program. A sealing ring is arranged at the joint of the pressurizing tool and the engine oil pressure sensor. The pressurizing and testing tool provided by the utility model can be simultaneously suitable for engine oil pressure sensors with various thread specifications under the condition that the original due sealing effect is maintained, so that the adaptability of the sealing and pressurizing tool is improved; and a sealing space is further created by using a sealing ring, so that when the sealing effect is weakened, the sealing ring can be directly replaced, and the abrasion of the pressurizing tool is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing and pressurizing, in particular to a sealing and pressurizing tool for an oil pressure sensor. Background Art

[0002] An automotive oil pressure sensor is a crucial device for monitoring the engine's oil pressure. The data collected helps control engine operation. While the engine is running, the oil pressure sensor uses a pressure measuring device to detect the lubricating oil pressure. A signal processing circuit converts the pressure signal into an electrical signal, which is then connected to the oil pressure gauge via a current and voltage amplification circuit. In oil pressure sensor performance testing systems, a test fixture is typically used to secure and pressurize the oil pressure sensor.

[0003] In existing oil pressure sensor performance testing systems, the test fixture is primarily divided into a fixed fixture and a pressurizing fixture. The fixed fixture secures the oil pressure sensor via designed stop holes, while the pressurizing fixture connects directly to the oil pressure sensor's oil channel interface. However, to accommodate different engine models, the lubrication channel dimensions of the oil pressure sensor vary. This direct pressurization method requires designing pressurizing fixtures of varying sizes, which presents certain limitations. Utility Model Content

[0004] In response to the technical problems raised in the above background technology, the utility model provides a sealing and pressurizing tool for an oil pressure sensor.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a sealing and pressurizing tool for an oil pressure sensor. The sealing and pressurizing tool comprises: a pressurizing tool, a position limiting tool, and a detection tool;

[0007] The lower end of the pressurizing fixture is connected to the oil pressure sensor, and the upper end of the limiting fixture is connected to the oil pressure sensor;

[0008] The detection tooling passes through the limit tooling and is in communication with the oil pressure sensor, and the detection tooling is controlled by a control program;

[0009] A sealing ring is provided at the connection between the pressurizing tool and the oil pressure sensor.

[0010] Preferably, the pressurizing tooling includes a nitrogen gas guide tube, a diversion gas cavity and a plurality of diversion gas tubes;

[0011] The nitrogen gas guide pipe is arranged on the upper side of the diversion gas cavity;

[0012] A plurality of the diversion air pipes are evenly distributed on the lower side of the diversion air cavity and connected to the lubricating oil channel of the oil pressure sensor.

[0013] Preferably, the limiting tooling includes limiting holes, and the limiting holes are evenly distributed.

[0014] Preferably, the detection tooling comprises a detection plate, a probe and a wire placement track;

[0015] The probes are distributed on the upper surface of the detection plate, the control program controls the detection tooling to rise, and the probes are connected to the oil pressure sensor.

[0016] Preferably, the sealing ring is provided at the connection between the bypass air pipe and the lubricating oil channel of the oil pressure sensor.

[0017] The positive progress of the present invention is that: the present invention provides a sealing and pressurizing tool for an oil pressure sensor. The sealing and pressurizing tool comprises: a pressurizing tool, a position limiting tool, and a detection tool;

[0018] The lower end of the pressurizing fixture is connected to the oil pressure sensor, while the upper end of the limit fixture is connected to the oil pressure sensor. The detection fixture passes through the limit fixture and is connected to the oil pressure sensor. The detection fixture is controlled by a control program. A sealing ring is installed at the connection between the pressurizing fixture and the oil pressure sensor. This utility model can be used for oil pressure sensors with various thread specifications while maintaining the original sealing effect, improving the adaptability of the sealing pressurizing fixture. The sealing ring is used to further create a sealed space. When the sealing effect is weakened, the sealing ring can be directly replaced to reduce wear on the pressurizing fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the sealing and pressurizing tooling structure of the oil pressure sensor according to an embodiment of the present utility model.

[0020] Legend: 1. Pressurizing fixture; 2. Limit fixture; 3. Detection fixture; 11. Nitrogen gas guide tube; 12. Diverter gas cavity; 13. Diverter gas tube; 21. Limit hole; 31. Detection plate; 32. Probe; 33. Wire placement track. DETAILED DESCRIPTION

[0021] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0022] Example 1

[0023] like Figure 1As shown, this embodiment provides a sealing and pressurizing tool for an oil pressure sensor. The sealing and pressurizing tool comprises: a pressurizing tool 1, a position limiting tool 2, and a detection tool 3. The lower end of the pressurizing tool 1 is connected to the oil pressure sensor, and the upper end of the position limiting tool 2 is connected to the oil pressure sensor. The detection tool 3 passes through the position limiting tool 2 and communicates with the oil pressure sensor. The detection tool 3 is controlled by a control program. A sealing ring is provided at the connection between the pressurizing tool 1 and the oil pressure sensor.

[0024] In this embodiment, the pressurizing tool 1 includes a nitrogen gas duct 11, a diverter air chamber 12, and several diverter air pipes 13. The nitrogen gas duct 11 is positioned above the diverter air chamber 12. Several diverter air pipes are evenly distributed below the diverter air chamber 12 and connect to the lubrication channel of the oil pressure sensor. A sealing ring is installed at the connection between the diverter air pipe 13 and the lubrication channel of the oil pressure sensor. The diverter air pipe 13 has a large aperture, adapting to oil pressure sensors with various thread specifications (M12×1.5, NPT1 / 8, NPT1 / 4).

[0025] In this embodiment, the oil pressure sensor is fixed by a limiting fixture 2 , and the limiting fixture 2 includes limiting holes 21 , which are evenly distributed.

[0026] In this embodiment, the detection tooling 3 includes a detection plate 31, a probe 32 and a wire placement track 33; the probe 32 is distributed on the upper surface of the detection plate 31, and the control program controls the detection tooling 3 to rise, and the probe 32 is connected to the oil pressure sensor.

[0027] This embodiment provides a sealing and pressurizing tool for an oil pressure sensor. This pressurizing and testing tool maintains the desired sealing effect while being compatible with oil pressure sensors of various thread specifications, improving the tool's adaptability. Furthermore, a sealing ring is used to further create a sealed space. When the sealing effect weakens, the ring can be directly replaced, reducing wear on the pressurizing tool.

[0028] The operating principle of this utility model is as follows: the oil pressure sensor is fixed to a stop fixture 2. A control program controls the detection fixture 3 to rise and contact the oil pressure sensor, connecting the probe 32 to the oil pressure sensor. Nitrogen is pumped into the diverter air chamber 12 via a nitrogen gas guide tube 11. The diverter air chamber 12 then distributes nitrogen to the diverter air pipes 13, applying it to the lubrication channels of the oil pressure sensor for testing. A sealing ring is then added to the connection between the diverter air pipes 13 and the lubrication channels of the oil pressure sensor to further create a sealed space. If the sealing effect weakens, the sealing ring can be directly replaced.

[0029] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A sealing and pressurizing tool for an oil pressure sensor, characterized in that: The sealing and pressurizing tooling includes: a pressurizing tooling, a limiting tooling, and a detection tooling; The lower end of the pressurizing fixture is connected to the oil pressure sensor, and the upper end of the limiting fixture is connected to the oil pressure sensor; The detection tooling passes through the limit tooling and is in communication with the oil pressure sensor, and the detection tooling is controlled by a control program; A sealing ring is provided at the connection between the pressurizing tool and the oil pressure sensor.

2. The sealing and pressurizing tool for the oil pressure sensor according to claim 1, characterized in that: The pressurizing tooling includes a nitrogen gas guide tube, a diversion gas cavity and a plurality of diversion gas tubes; The nitrogen gas guide pipe is arranged on the upper side of the diversion gas cavity; A plurality of the diversion air pipes are evenly distributed on the lower side of the diversion air cavity and connected to the lubricating oil channel of the oil pressure sensor.

3. The sealing and pressurizing tool for the oil pressure sensor according to claim 2, characterized in that: The limiting tooling includes limiting holes, and the limiting holes are evenly distributed.

4. The sealing and pressurizing tool for the oil pressure sensor according to claim 3, characterized in that: The detection tooling includes a detection plate, a probe and a wire placement track; The probes are distributed on the upper surface of the detection plate, the control program controls the detection tooling to rise, and the probes are connected to the oil pressure sensor.

5. The sealing and pressurizing tool for the oil pressure sensor according to claim 4, characterized in that: The sealing ring is provided at the connection between the shunt air pipe and the lubricating oil passage of the oil pressure sensor.

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