Air pressure sensor detection device

Abstract

The utility model relates to an air pressure detection device, and aims to solve the technical problem that a faulted air pressure sensor cannot be detected due to the fact that a closed space structure of the air pressure sensor is easily damaged when a riveting part of the air pressure sensor is cut and processed. The utility model provides an air pressure sensor detection device which comprises a cylinder body, and the side part of the cylinder body is provided with an air inlet valve communicated with an air supply unit; the upper and lower ends of the cylinder are respectively provided with an upper connecting flange and a lower connecting flange; an upper cover plate is hermetically mounted on the upper connecting flange; a lower cover plate is hermetically mounted on the lower connecting flange, a mounting hole is formed in the lower cover plate, a circuit board is hermetically mounted at the mounting hole in the top of the lower cover plate, and a to-be-tested air pressure sensor is arranged in the cylinder and electrically connected with the circuit board; the circuit board is electrically connected with the wire harness connector and used for outputting detection information of the to-be-detected air pressure sensor. And the influence on the detection of the fault air pressure sensor due to the fact that the closed space structure of the air pressure sensor is damaged when the fault air pressure sensor is cut is avoided.

Description

Technical Field

[0001] The utility model relates to a pneumatic pressure detection device, in particular to a pneumatic pressure sensor detection device. Background Art

[0002] In the production process of pneumatic pressure sensors, riveting technology and mechanical sealing are key steps to ensure their stable performance. However, when the sensor encounters a fault during use, in order to accurately trace the root cause of the fault, it is necessary to detect the faulty pneumatic pressure sensor.

[0003] Currently, when detecting a pneumatic pressure sensor, it is necessary to cut the riveting part of the pneumatic pressure sensor and then conduct a test after cutting; however, during the cutting process, it is easy to damage the sealed space structure of the pneumatic pressure sensor, resulting in the inability to detect the faulty pneumatic pressure sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problem that when cutting the riveting part of the pneumatic pressure sensor, it is easy to damage the sealed space structure of the pneumatic pressure sensor, resulting in the inability to detect the faulty pneumatic pressure sensor, and to provide a pneumatic pressure sensor detection device.

[0005] To solve the above technical problem, the technical solution provided by the utility model is as follows:

[0006] A pneumatic pressure sensor detection device includes a cylinder body, and an intake valve communicating with a gas supply unit is provided on the side of the cylinder body; upper and lower connecting flanges are respectively provided at the upper and lower ends of the cylinder body; an upper cover plate is hermetically installed on the upper connecting flange; a lower cover plate is hermetically installed on the lower connecting flange, and an installation hole is opened on the lower cover plate, and a circuit board is hermetically installed at the installation hole at the top of the lower cover plate. The pneumatic pressure sensor to be tested is placed in the cylinder body and electrically connected to the circuit board; the circuit board is electrically connected to a wire harness connector for outputting the detection information of the pneumatic pressure sensor to be tested.

[0007] Further, a plurality of evenly distributed gripping handles are provided on the top of the upper cover plate.

[0008] Further, a plurality of annular installation grooves are respectively opened at the top of the upper connecting flange and the bottom of the lower connecting flange, and sealing rings are installed in the annular installation grooves.

[0009] Further, a plurality of evenly distributed flange through holes are opened on both the upper connecting flange and the lower connecting flange; cover plate through holes are respectively opened at positions corresponding to the flange through holes of the upper connecting flange on the upper cover plate and at positions corresponding to the flange through holes of the lower connecting flange on the lower cover plate; the cover plate through holes and the flange through holes at the same positions of the upper cover plate and the upper connecting flange, and the lower cover plate and the lower connecting flange are connected by bolts.

[0010] Further, the air supply unit includes an air pump and a pressure gauge disposed at the air outlet of the air pump. The air outlet of the pressure gauge is connected to the intake valve through a hose.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The pressure sensor detection device provided by the present utility model forms a sealed environment through a cylinder body, an upper cover plate and a lower cover plate that are respectively and hermetically installed at both ends of the cylinder body through an upper connecting flange and a lower connecting flange. Since the upper cover plate is detachable, the pressure sensor to be measured can be directly connected to the circuit board inside the cylinder body, and the required pressure environment can be simulated by supplying air through the air supply unit; finally, the detection information is transmitted to the detection device through the wire harness connector connected to the circuit board to realize the detection of the pressure sensor to be measured; it avoids the influence on the detection of the faulty pressure sensor caused by the destruction of the sealed space structure of the pressure sensor during the cutting process of the faulty pressure sensor. Description of the Drawings

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

[0014] Description of the reference numerals: 1 - cylinder body, 2 - intake valve, 3 - upper connecting flange, 4 - lower connecting flange, 5 - upper cover plate, 6 - lower cover plate, 7 - circuit board, 8 - wire harness connector, 9 - gripping handle, 10 - sealing ring, 11 - flange through hole, 12 - cover plate through hole. Detailed Embodiments

[0015] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0016] As Figure 1 shown, a pressure sensor detection device includes a cylinder body 1, and an intake valve 2 communicating with the air supply unit is provided on the side of the cylinder body 1; the air supply unit includes an air pump and a pressure gauge disposed at the air outlet of the air pump. The air outlet of the pressure gauge is connected to the intake valve 2 through a hose. The air pump is used to inject gas into the cylinder body 1 to create the pressure environment required for detecting the pressure sensor.

[0017] To facilitate placing the pressure sensor to be measured, as Figure 1As shown in the figure, upper connecting flange 3 and lower connecting flange 4 are respectively provided at the upper and lower ends of cylinder body 1; upper cover plate 5 is hermetically installed on upper connecting flange 3; lower cover plate 6 is hermetically installed on lower connecting flange 4; a plurality of uniformly distributed flange through holes 11 are provided on both upper connecting flange 3 and lower connecting flange 4; cover plate through holes 12 are provided at positions corresponding to flange through holes 11 of upper connecting flange 3 on upper cover plate 5 and at positions corresponding to flange through holes 11 of lower connecting flange 4 on lower cover plate 6; cover plate through holes 12 and flange through holes 11 at the same positions of upper cover plate 5 and upper connecting flange 3, and lower cover plate 6 and lower connecting flange 4 are connected by bolts.

[0018] As Figure 1 shown, mounting holes are provided on lower cover plate 6, and circuit board 7 is hermetically installed at the mounting holes at the top of lower cover plate 6; the pressure sensor to be measured is placed inside cylinder body 1 and electrically connected to circuit board 7; circuit board 7 is electrically connected to wire harness connector 8, and wire harness connector 8 can be replaced according to the detection type and is used to output the detection information of the pressure sensor to be measured.

[0019] To facilitate the movement of upper cover plate 5, as Figure 1 shown, a plurality of evenly distributed gripping handles 9 are provided at the top of upper cover plate 5.

[0020] To achieve the sealing between upper cover plate 5 and upper connecting flange 3, and between lower cover plate 6 and lower connecting flange 4, as Figure 1 shown, a plurality of annular mounting grooves are provided at the top of upper connecting flange 3 and at the bottom of lower connecting flange 4, and sealing rings 10 are installed in the annular mounting grooves.

[0021] When the pressure sensor detection device provided by the present utility model is in use:

[0022] First, remove the bolts connecting upper connecting flange 3 and upper cover plate 5, and remove upper cover plate 5;

[0023] Secondly, place the pressure sensor to be measured inside cylinder body 1 and connect the pressure sensor to be measured to circuit board 7;

[0024] Then, after the connection is completed, fix upper cover plate 5 and upper connecting flange 3 together with bolts;

[0025] Then, connect wire harness connector 8 to the detection device;

[0026] Finally, inject gas into cylinder body 1 through air inlet valve 2 by an air pump, monitor the air pressure inside cylinder body 1 through a pressure gauge, and at the same time, the pressure sensor to be measured transmits the detection information to the detection device through wire harness connector 8.

[0027] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present utility model shall be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. An air pressure sensor detection device, comprising a cylinder (1), wherein a side portion of the cylinder (1) is provided with an air inlet valve (2) connected to an air supply unit; characterized in that: An upper connecting flange (3) and a lower connecting flange (4) are respectively provided at the upper and lower ends of the cylinder (1); The upper connecting flange (3) is sealingly mounted with an upper cover plate (5); The lower connecting flange (4) is sealed with a lower cover plate (6), a mounting hole is provided on the lower cover plate (6), a circuit board (7) is sealed with the mounting hole at the top of the lower cover plate (6), the air pressure sensor to be tested is placed in the cylinder (1) and is electrically connected to the circuit board (7); the circuit board (7) is electrically connected to a wiring harness connector (8) for outputting detection information of the air pressure sensor to be tested.

2. The air pressure sensor detection device according to claim 1, characterized in that: The top of the upper cover plate (5) is provided with a plurality of evenly distributed gripping handles (9).

3. The air pressure sensor detection device according to claim 1, characterized in that: A plurality of annular installation grooves are provided at the top of the upper connecting flange (3) and the bottom of the lower connecting flange (4), and sealing rings (10) are installed in the annular installation grooves.

4. The air pressure sensor detection device according to claim 1, characterized in that: The upper connecting flange (3) and the lower connecting flange (4) are both provided with a plurality of evenly distributed flange through holes (11); A cover plate through hole (12) is provided at a position corresponding to the flange through hole (11) of the upper connecting flange (3) and at a position corresponding to the flange through hole (11) of the lower connecting flange (4) of the lower cover plate (6); The upper cover plate (5) and the upper connecting flange (3), as well as the cover plate through holes (12) and the flange through holes (11) at the same positions as the lower cover plate (6) and the lower connecting flange (4) are connected by bolts.

5. The air pressure sensor detection device according to claim 1, characterized in that: The air supply unit comprises an air pump and a pressure gauge arranged at the air outlet of the air pump, and the air outlet of the pressure gauge is connected to the air inlet valve (2) through a hose.

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