Compact differential pressure sensor convenient to clean

Abstract

The utility model discloses a compact convenient-to-clean differential pressure sensor, which relates to the differential pressure sensor field, and comprises a lower valve body, the top end of the lower valve body is provided with a miniature upper valve body, the miniature upper valve body is cylindrical, the outer wall of the miniature upper valve body is smooth, the two sides of the lower valve body are provided with hexagonal nuts, and the hexagonal nuts are connected with the lower valve body. And a pressure guide hole is formed in the middle position of the hexagon nut. Through the arrangement of the miniature upper valve body, the occupied area of an existing upper valve body can be effectively reduced, structures such as a display screen do not need to be adopted, the differential pressure sensor can be conveniently installed in a narrow space, the size of the miniature upper valve body is small, and therefore dead corners on the outer side of the differential pressure sensor can be effectively reduced, and the reliability of the differential pressure sensor is improved. And the differential pressure sensor can be cleaned conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of differential pressure sensor, concretely to a compact differential pressure sensor convenient to clean. BACKGROUND

[0002] Differential pressure sensor is a kind of sensor for measuring the difference between two pressures, usually used to measure the pressure difference of the front and rear of a device or component, and the working principle of differential pressure sensor is that the measured pressure directly acts on the diaphragm of sensor, makes the diaphragm produce proportional micro-displacement with water pressure, makes the capacitance value of sensor change, and detects this change with electronic circuit, and converts and outputs a corresponding pressure standard measurement signal, and in use, differential pressure sensor is usually installed in pipeline.

[0003] The prior art such as the high-sensitive differential pressure sensor disclosed in Chinese published patent CN115628841A includes a differential pressure sensor shell, a maintenance cover plate is fixed on the middle of the upper surface of the differential pressure sensor shell, a display screen is inlaid and fixed on the middle of the front surface of the differential pressure sensor shell, heat dissipation holes are formed in the middle of the left and right outer surfaces of the differential pressure sensor shell, an installation plate is fixedly installed at the rear end of the lower surface of the differential pressure sensor shell, a connecting cylinder is fixedly installed in the middle of the lower surface of the differential pressure sensor shell, a pressure chamber is fixedly installed on the lower surface of the connecting cylinder, a temperature compensation assembly is arranged at the bottom of the right surface of the pressure chamber, and the temperature compensation assembly includes a square block fixedly installed at the bottom of the right surface of the pressure chamber.

[0004] However, the prior art has display screen and detection device at the top end, which leads to that the top end of differential pressure sensor is too large, so that the space occupied by the device is large, and the existing differential pressure sensor directly transmits information to the outside through wires when collecting information, without manual reading, so that the cost of using display is high, and the installation is inconvenient, and dead angles are generated outside the sensor, which is inconvenient to clean. SUMMARY

[0005] Therefore, the utility model aims at providing a compact differential pressure sensor convenient to clean to solve the technical problem of inconvenient installation and cleaning of sensor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a compact differential pressure sensor convenient to clean, including lower valve body, the top end of the lower valve body is installed with micro upper valve body, the micro upper valve body is cylindrical, and the outer wall of micro upper valve body is smooth, the both sides of lower valve body are installed with hexagon nut, and the middle position of hexagon nut is provided with pressure lead hole.

[0007] By adopting the technical scheme, the differential pressure sensor can be conveniently installed, and after installation, the differential pressure sensor is installed through the hexagonal nut, and installation is completed.

[0008] The utility model further sets up, the bottom of lower valve body installs the sealing plate, sealing plate is semicircle board, and sealing plate passes through bolt and is fixedly connected with lower valve body.

[0009] As preferred, the lower valve body can be conveniently sealed, and the lower valve body can be conveniently opened for maintenance.

[0010] The utility model further sets up, lower valve body is cylindrical as a whole, and the diameter of lower valve body is greater than the diameter of micro upper valve body.

[0011] As preferred, the lower valve body can be conveniently cleaned.

[0012] The utility model further sets up, the top of micro upper valve body is installed with the connector, the top of connector is connected with the connecting wire, and the connecting wire is connected with external control equipment.

[0013] As preferred, the micro upper valve body can be connected with external equipment through the connecting wire.

[0014] The utility model further sets up, the inside of micro upper valve body is installed with micro circuit board, and the micro circuit board is connected with external equipment through the connecting wire.

[0015] As preferred, the differential pressure in the pipeline can be conveniently detected.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] The utility model discloses a micro upper valve body, which can effectively reduce the occupied area of the existing upper valve body, without using a display screen and other structures, so that the differential pressure sensor can be conveniently installed in a narrow space, and the micro upper valve body has a small size, so that the dead angle outside the differential pressure sensor can be effectively reduced, and the differential pressure sensor can be conveniently cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The utility model discloses a structure schematic drawing;

[0019] Fig. 2 The utility model discloses a structure schematic drawing of side face;

[0020] Fig. 3 The utility model discloses a structure schematic drawing of bottom end.

[0021] Mark explanation:

[0022] 1, lower valve body; 101, hexagonal nut; 102, pressure hole; 103, sealing plate; 2, micro upper valve body; 3, connecting head; 301, connecting wire. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.

[0024] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0025] Please refer to Figs. 1-3 A compact differential pressure sensor convenient to clean, comprising a lower valve body 1, the top end of the lower valve body 1 is provided with a micro upper valve body 2, the micro upper valve body 2 is cylindrical, and the outer wall of the micro upper valve body 2 is smooth, the lower valve body 1 is cylindrical as a whole, the diameter of the lower valve body 1 is greater than that of the micro upper valve body 2, the lower valve body 1 is provided with hexagonal nuts 101 on both sides, and the middle position of the hexagonal nuts 101 is provided with a pressure hole 102, the top end of the micro upper valve body 2 is provided with a connecting head 3, the top end of the connecting head 3 is connected with a connecting wire 301, the connecting wire 301 is connected with external control equipment, the micro upper valve body 2 is internally provided with a micro circuit board, and the micro circuit board is connected with external equipment through the connecting wire 301.

[0026] In the above embodiment, specifically, please refer to Fig. 1 And Fig. 2 The bottom end of the lower valve body 1 is provided with a sealing plate 103, the sealing plate 103 is a semicircular plate, and the sealing plate 103 is fixedly connected with the lower valve body 1 through bolts.

[0027] In the use process, first, the valve body is installed into the pipeline, is fixed with external conveying pipeline through the hexagonal nut 101, is connected with the pipeline through the pressure hole 102, then the connecting wire 301 is connected with external control equipment, when the external pressure source is filled into the inside of the lower valve body 1, the circuit board in the micro upper valve body 2 detects the pressure difference through the sensor, so that the operation of the differential pressure sensor is realized, when the differential pressure sensor needs to be cleaned subsequently, the lower valve body 1 outer wall is cleaned through a cloth and other cleaning structures, then the outside of the micro upper valve body 2 is cleaned, so that the differential pressure sensor can be conveniently cleaned, and the cleaning effect is improved.

[0028] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A compact differential pressure sensor easy to clean, comprising a lower valve body (1), characterized in that: The top end of the lower valve body (1) is provided with a micro upper valve body (2), the micro upper valve body (2) is cylindrical, the outer wall of the micro upper valve body (2) is smooth, the two sides of the lower valve body (1) are provided with hexagonal nuts (101), and the middle positions of the hexagonal nuts (101) are provided with pressure guide holes (102).

2. A compact, easy-to-clean differential pressure sensor according to claim 1, characterized in that: The bottom end of the lower valve body (1) is provided with a sealing plate (103), the sealing plate (103) is a semicircular plate, and the sealing plate (103) is fixedly connected with the lower valve body (1) through bolts.

3. A compact, easy-to-clean differential pressure sensor according to claim 1, characterized in that: The lower valve body (1) is cylindrical as a whole, and the diameter of the lower valve body (1) is larger than that of the micro upper valve body (2).

4. A compact, easy-to-clean differential pressure sensor according to claim 1, characterized in that: The top end of the micro upper valve body (2) is provided with a connecting head (3), the top end of the connecting head (3) is connected with a connecting lead wire (301), and the connecting lead wire (301) is connected with external control equipment.

5. A compact, easy-to-clean differential pressure sensor according to claim 4, characterized in that: The micro upper valve body (2) is internally provided with a micro circuit board, and the micro circuit board is connected with external equipment through the connecting lead wire (301).

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