A liquid pressure measurement sensor

Abstract

This utility model relates to the field of sensor technology and discloses a liquid pressure measuring sensor, including a mounting base. A protective mechanism is provided on the lower surface of the mounting base. The protective mechanism includes a positioning seat, a protective shell, and a sealing groove. A water exchange pipe is fixedly connected to the center of the inner bottom surface of the positioning seat. A hexagonal locking block is threaded into the inner wall of the positioning seat. A filter screen is fixedly connected to the inner wall of the protective shell. A sealing ring is engaged with the lower end of the inner wall of the sealing groove. An air bladder is fixedly connected to the lower surface of the sealing ring. A pressure sensor is fixedly connected to the center of the lower surface of the mounting base. In this utility model, the protective shell and air bladder of the sensor are both fixedly mounted on the mounting base with lifting bolts, which makes maintenance and cleaning more convenient after use, thereby improving the service life and ease of use of the sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a liquid pressure measurement sensor. Background Technology

[0002] Liquid pressure measurement sensors have a wide range of applications in various fields such as industry, medicine, and scientific research. They are mainly used to monitor pressure changes in liquids. Liquid pressure sensors play a key role in situations where accurate monitoring and control of liquid pressure is required, ensuring the safety, efficiency, and normal operation of the system.

[0003] However, traditional pressure sensors are usually in direct contact with the liquid being measured, making them susceptible to impurities, suspended solids, and corrosive substances in the liquid. This can lead to sensor contamination, performance degradation, or even premature failure. Because they are directly exposed to the liquid being measured, sensors are prone to accumulating contaminants and deposits, requiring frequent cleaning or replacement, resulting in high and complex maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liquid pressure measurement sensor. This sensor is equipped with a protective mechanism. The pressure sensor is protected by a protective shell and a filter screen, providing the first layer of protection. The air bladder contains purified liquid, which can transmit the pressure of the liquid to be detected. This allows the pressure sensor to detect the liquid pressure indirectly, reducing the damage caused by direct contact between the pressure sensor and the liquid to be detected, thus providing a second layer of protection. This further prevents contaminants, impurities, or mechanical damage from directly contacting the pressure sensor, extending the sensor's service life and reducing maintenance frequency and costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A liquid pressure measuring sensor includes a mounting base. A protective mechanism is provided on the lower surface of the mounting base. The protective mechanism includes a positioning seat, a protective shell, and a sealing groove. A water exchange pipe is fixedly connected to the center of the inner bottom surface of the positioning seat. A hexagonal locking block is threaded into the inner wall of the positioning seat. A filter screen is fixedly connected to the inner wall of the protective shell. A sealing ring is engaged with the lower end of the inner wall of the sealing groove. An air bladder is fixedly connected to the lower surface of the sealing ring. A pressure sensor is fixedly connected to the center of the lower surface of the mounting base.

[0007] With the above technical solution, the protective shell and airbag of the sensor are both fixed to the mounting base by lifting bolts, which makes it easier for personnel to maintain and clean after use, thereby improving the service life of the sensor and the convenience of use.

[0008] Furthermore, the positioning seat is fixedly connected to one side of the lower end of the outer wall of the mounting seat;

[0009] The above technical solution enables users to replace or replenish the clean liquid inside the airbag via the positioning seat.

[0010] Furthermore, a rubber block is fixedly connected to the lower surface of the hexagonal locking block;

[0011] The above technical solution enables the hexagonal locking block to be tightly and securely installed on the positioning seat via the rubber block.

[0012] Furthermore, the protective shell is fixedly connected to the periphery of the lower surface of the mounting base;

[0013] The above technical solution enables users to disassemble or fix the protective shell using bolts.

[0014] Furthermore, the sealing groove is located in the middle of the lower surface of the mounting base;

[0015] The above technical solution enables users to disassemble or install the sealing ring by rotating the bolt.

[0016] Furthermore, a sealing gasket is tightly fitted to the inner top surface of the sealing groove;

[0017] The above technical solution improves the sealing performance when the sealing ring bolt is fixed by setting a sealing gasket.

[0018] Furthermore, a connecting wire is fixedly connected to the center of the upper surface of the mounting base, and the connecting wire is electrically connected to the pressure sensor;

[0019] The above technical solution enables users to connect external mobile devices to the connection cable and then understand the data detected by the pressure sensor.

[0020] This utility model has the following beneficial effects:

[0021] 1. The liquid pressure measuring sensor proposed in this utility model, compared with most traditional liquid pressure measuring sensors, is equipped with a protective mechanism. The pressure sensor is protected by a protective shell and a filter screen, which provides the first layer of protection. The air bladder contains purified liquid, which can transmit the pressure of the liquid to be detected. This allows the pressure sensor to detect the liquid pressure indirectly, reducing the damage caused by direct contact between the pressure sensor and the liquid to be detected. This provides a second layer of protection, preventing contaminants, impurities or mechanical damage from directly contacting the pressure sensor, extending the sensor's service life and reducing maintenance frequency and costs.

[0022] 2. The liquid pressure measuring sensor proposed in this utility model, compared with most traditional liquid pressure measuring sensors, has its protective shell and air bladder both mounted and fixed on the mounting base with lifting bolts. This makes it easier for personnel to maintain and clean after use, thereby improving the service life and ease of use of the sensor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a liquid pressure measuring sensor proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the protective shell structure of a liquid pressure measuring sensor proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the airbag structure of a liquid pressure measuring sensor proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the sealing groove structure of a liquid pressure measuring sensor proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of the mounting base for a liquid pressure measuring sensor proposed in this utility model.

[0028] Legend:

[0029] 1. Mounting bracket;

[0030] 2. Protective mechanism; 201. Positioning seat; 202. Water replacement pipe; 203. Hexagonal locking block; 204. Rubber block; 205. Protective shell; 206. Filter screen; 207. Sealing groove; 208. Sealing gasket; 209. Sealing ring; 2010. Airbag;

[0031] 3. Connecting wire; 4. Pressure sensor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] One embodiment provided by this utility model:

[0034] Reference Figure 1 , 23. A liquid pressure measuring sensor includes a mounting base 1. A protective mechanism 2 is provided on the lower surface of the mounting base 1. The protective mechanism 2 includes a positioning seat 201, a protective shell 205, and a sealing groove 207. A water exchange pipe 202 is fixedly connected to the center of the inner bottom surface of the positioning seat 201. A hexagonal locking block 203 is threaded into the inner wall of the positioning seat 201. A filter screen 206 is fixedly connected to the inner wall of the protective shell 205. A sealing ring 209 is engaged with the lower end of the inner wall of the sealing groove 207. An air bladder 2010 is fixedly connected to the lower surface of the sealing ring 209. A pressure sensor 4 is fixedly connected to the center of the lower surface of the mounting base 1. The protective shell 205 and the air bladder 2010 of the sensor are both fixedly mounted on the mounting base 1 with lifting bolts. This makes it easier for personnel to maintain and clean after use, thereby improving the service life and ease of use of the sensor.

[0035] Reference Figure 3 , 4 5. The positioning seat 201 is fixedly connected to one side of the lower end of the outer wall of the mounting base 1, so that the user can replace or replenish the clean liquid in the airbag 2010 through the positioning seat 201. A rubber block 204 is fixedly connected to the lower surface of the hexagonal locking block 203, so that the hexagonal locking block 203 can be tightly and firmly installed on the positioning seat 201 through the rubber block 204. The protective shell 205 is fixedly connected to the periphery of the lower surface of the mounting base 1, so that the user can disassemble or fix the protective shell 205 with bolts. The sealing groove 20 7 is located in the middle of the lower surface of the mounting base 1, allowing the user to disassemble or install the sealing ring 209 by rotating the bolt. The inner top surface of the sealing groove 207 is tightly fitted with a sealing gasket 208. By setting the sealing gasket 208, the sealing performance of the sealing ring 209 when the bolt is fixed is improved. A connecting wire 3 is fixedly connected to the center of the upper surface of the mounting base 1. The connecting wire 3 is electrically connected to the pressure sensor 4, allowing the user to connect an external mobile device to the connecting wire 3 and then understand the data detected by the pressure sensor 4.

[0036] Working principle: First, connect the connecting cable 3 to the mobile device. Then, place the sensor in the liquid to be detected. The sensor has an air bladder 2010 at the detection port of the pressure sensor 4. The air bladder 2010 is filled with clean liquid. The air bladder 2010 is surrounded by a filter screen 206 (glass fiber material) and a protective shell 205. The liquid to be detected is filtered by the filter screen 206 and then pressure is applied to the air bladder 2010. The air bladder 2010 transmits the pressure to the clean liquid inside, and the clean liquid transmits the pressure to the pressure sensor 4, thus completing the data detection.

[0037] It should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments of this disclosure; other structures can be referred to with ordinary designs. Where there is no conflict, the embodiments of this disclosure and the features thereof can be combined with each other to obtain new embodiments.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid pressure measuring sensor, characterized by, include: Mounting base (1), the lower surface of which is provided with a protective mechanism (2), the protective mechanism (2) includes a positioning base (201), a protective shell (205) and a sealing groove (207), a water exchange pipe (202) is fixedly connected to the center of the inner bottom surface of the positioning base (201), a hexagonal locking block (203) is threaded on the inner wall of the positioning base (201), a filter screen (206) is fixedly connected to the inner wall of the protective shell (205), a sealing ring (209) is snapped into the lower end of the inner wall of the sealing groove (207), an airbag (2010) is fixedly connected to the lower surface of the sealing ring (209), and a pressure sensor (4) is fixedly connected to the center of the lower surface of the mounting base (1).

2. A liquid pressure measuring sensor according to claim 1, characterized in that: The positioning seat (201) is fixedly connected to one side of the lower end of the outer wall of the mounting seat (1).

3. A liquid pressure measuring sensor according to claim 1, wherein: A rubber block (204) is fixedly connected to the lower surface of the hexagonal locking block (203).

4. A liquid pressure measuring sensor according to claim 1, wherein: The protective shell (205) is fixedly connected to the periphery of the lower surface of the mounting base (1).

5. The liquid pressure measuring sensor of claim 1, wherein: The sealing groove (207) is located in the middle of the lower surface of the mounting base (1).

6. A liquid pressure measuring sensor according to claim 1, wherein: The inner top surface of the sealing groove (207) is tightly fitted with a sealing gasket (208).

7. A liquid pressure measuring sensor according to claim 1, wherein: A connecting line (3) is fixedly connected to the center of the upper surface of the mounting base (1), and the connecting line (3) is electrically connected to the pressure sensor (4).

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