Differential pressure sensor calibration tool

Abstract

The utility model discloses a differential pressure transducer calibration tool, which comprises a base, a mounting strip and a connecting plate, the base is provided with a mounting groove, the mounting groove is provided with a support leg hole for the penetration of a support leg of a differential pressure transducer, the two ends of the base are respectively provided with a support lug, and the support lug is provided with a support lug hole; the mounting strip is provided with a positioning column used for positioning the differential pressure sensor, flanges are arranged at the two ends of the mounting strip, and flange holes are formed in the flanges; and the base is connected with the mounting strip through the connecting plate. The base is used for installing the supporting legs of the differential pressure sensor, the installation strips are used for positioning the differential pressure sensor, pins of the sensor cannot be pressed, installation is convenient, efficiency is high, and the rate of unqualified products caused by detection is reduced.

Description

Technical Field

[0001] This utility model relates to calibration fixtures, specifically a differential pressure sensor calibration fixture. Background Technology

[0002] When testing differential pressure sensors, a calibration base is required. Currently, a base is used to install the sensor, and a pressure plate is used to press and position the sensor. However, the sensor is small and has pins on the side. The pressure plate method can easily damage the pins, resulting in a large number of defective products. Utility Model Content

[0003] To address the shortcomings of the existing technology, this invention provides a differential pressure sensor calibration fixture. This invention utilizes a base to mount the differential pressure sensor's feet and uses mounting strips to position the differential pressure sensor, preventing pressure on the sensor's pins. It is easy to install, highly efficient, and reduces the defect rate caused by faulty inspections.

[0004] To achieve the above technical objectives, this utility model adopts the following technical solution: a differential pressure sensor calibration fixture, comprising a base, a mounting strip, and a connecting plate. The base is provided with a mounting groove, and the mounting groove has foot holes for mounting the feet of the differential pressure sensor. Each end of the base is provided with a lug, and the lug has lug holes. The mounting strip is provided with a positioning post for positioning the differential pressure sensor, and both ends of the mounting strip are provided with flanges, and the flanges have flange holes. The connecting plate connects the base and the mounting strip.

[0005] Furthermore, the base is provided with bosses, and the mounting grooves are formed between adjacent bosses.

[0006] Furthermore, the mounting strip is provided with a positioning strip for positioning the pins of the differential pressure sensor.

[0007] Furthermore, the connecting plate is provided with a first leg and a second leg, which are respectively inserted into the lug hole and the flange hole.

[0008] In summary, this utility model achieves the following technical effects:

[0009] This invention utilizes a base to mount the differential pressure sensor's feet and uses an mounting strip to position the differential pressure sensor, preventing pressure on the sensor's pins. This makes installation convenient, efficient, and reduces the defect rate caused by faulty detection. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the base;

[0011] Figure 2 This is a diagram of the installation strip;

[0012] Figure 3 This is a schematic diagram of the connecting plate. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0019] Example:

[0020] A differential pressure sensor calibration fixture includes a base 1, a mounting strip 3, and a connecting plate 2.

[0021] Figure 1 This is a schematic diagram of the base. The base 1 is provided with a mounting groove 13. The mounting groove 13 has a foot hole 14 for inserting the foot of the differential pressure sensor. The two ends of the base 1 are respectively provided with ears 15, and the ears 15 have ears holes 16.

[0022] The base 1 is provided with bosses 12, and mounting grooves 13 are formed between adjacent bosses 12. The bosses 12 act as partitions to separate the two differential pressure sensors, facilitating installation and preventing mutual interference. A pad can also be used in the mounting groove 13, and bolts can be used to fix the sensor within the mounting groove 13, accommodating differential pressure sensors of various thicknesses.

[0023] The two legs of the differential pressure sensor are inserted into the two leg holes 14 and then connected to air tubes for inflation to test the airtightness.

[0024] Figure 2 This is a schematic diagram of the mounting strip. The mounting strip 3 is equipped with positioning posts 32 for positioning the differential pressure sensor. There is a positioning hole on each side of the differential pressure sensor, and the two positioning holes are respectively positioned on the two positioning posts 32 to ensure the accurate installation position of the sensor.

[0025] The mounting strip 3 has flanges 33 at both ends, and the flanges 33 have flange holes 34; the connecting plate 2 connects the base 1 and the mounting strip 3.

[0026] The mounting strip 3 is provided with a positioning strip 31 for positioning the pins of the differential pressure sensor.

[0027] Figure 3 This is a schematic diagram of a connecting plate. The connecting plate 2 is provided with a first support leg 21 and a second support leg 22, which are respectively inserted into the lug hole 16 and the flange hole 34.

[0028] Position the two positioning holes of the differential pressure sensor onto the two positioning posts 32, place the pins on the positioning strip 31, then connect multiple sensors and mounting strip 3 as a whole to the base 1, install the two legs of the differential pressure sensor into the two leg holes 14, and then use two connecting plates 2 to fix the mounting strip 3 and the base 1 together.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A differential pressure sensor calibration fixture, characterized in that: The device includes a base (1), a mounting strip (3), and a connecting plate (2). The base (1) is provided with a mounting groove (13), and the mounting groove (13) has a foot hole (14) for the foot of the differential pressure sensor to pass through. The two ends of the base (1) are respectively provided with ears (15), and the ears (15) have ears holes (16). The mounting strip (3) is provided with a positioning post (32) for positioning the differential pressure sensor. The two ends of the mounting strip (3) are provided with flanges (33), and the flanges (33) have flange holes (34). The connecting plate (2) connects the base (1) and the mounting strip (3).

2. The differential pressure sensor calibration fixture according to claim 1, characterized in that: The base (1) is provided with a boss (12), and the mounting groove (13) is formed between adjacent bosses (12).

3. The differential pressure sensor calibration fixture according to claim 1, characterized in that: The mounting strip (3) is provided with a positioning strip (31) for positioning the pins of the differential pressure sensor.

4. The differential pressure sensor calibration fixture according to claim 1, characterized in that: The connecting plate (2) is provided with a first leg (21) and a second leg (22), which are respectively inserted into the lug hole (16) and the flange hole (34).

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