Single-communicating-pipe static leveling instrument

Abstract

The invention relates to the technical field of measurement, in particular to a single-communicating-pipe static leveling instrument which comprises an instrument shell, a circuit board and a cable connector, the cable connector is arranged on the instrument shell, the circuit board is arranged in the instrument shell, the single-communicating-pipe static leveling instrument further comprises an absolute pressure sensor and a liquid inlet pipeline, the liquid inlet pipeline penetrates through the instrument shell, and the absolute pressure sensor is arranged in the instrument shell. And the absolute pressure sensor is arranged in the instrument shell and is communicated with the liquid inlet pipeline. The absolute pressure sensor group is adopted, and compared with the prior art that the negative pressure side is in a vacuum environment, the influence of environment temperature and the influence of use and operation are avoided; the sensor is prevented from being in direct contact with air, influence of air humidity on the semiconductor sensor or permanent damage of the sensor is avoided, and detection stability is improved.

Description

Technical Field

[0001] The invention relates to the field of measurement technology, and in particular to a single-connected-tube static level. Background Art

[0002] A static level is a precision instrument used to measure small height differences between two or more points. It is often used in civil engineering, structural health monitoring, geological exploration and other fields to detect changes such as ground settlement and building tilt. The working principle of a static level is based on the principle of communicating vessels, that is, the surface of a stationary liquid in a closed system will remain at the same level when not affected by external forces.

[0003] The existing static level needs to be connected with the gas circuit and the liquid circuit to detect the settlement of the installation surface, which requires the laying of gas pipelines, and is relatively troublesome to use and maintain. Summary of the invention

[0004] The object of the present invention is to provide a single-connected tube static level, which is designed to use an absolute pressure sensor group to save gas pipelines, save product costs, and reduce installation and maintenance workload.

[0005] To achieve the above-mentioned objectives, the present invention provides a single-connected tube static level, including an instrument housing, a circuit board and a cable connector, wherein the cable connector is arranged on the instrument housing, the circuit board is arranged in the instrument housing, and also includes an absolute pressure sensor and a liquid inlet pipeline, the liquid inlet pipeline passes through the instrument housing, and the absolute pressure sensor is arranged in the instrument housing and connected to the liquid inlet pipeline.

[0006] Wherein, the liquid inlet pipeline includes two connectors and a passage, the passage is arranged in the instrument housing and connected to the absolute pressure sensor, the two connectors are connected to both ends of the passage and fixed to the instrument housing, and the connectors are used to connect to external pipelines.

[0007] Wherein, the connector includes a connector body, a sleeve and a conical ring, the connector body is connected to the instrument housing, the sleeve is fixedly connected to the connector body and is located on one side of the connector body, the conical ring is an elastic material, and the conical ring is arranged in the sleeve.

[0008] Wherein, the connector further comprises a plurality of spring sheets and a pressure ring, wherein the plurality of spring sheets are arranged on one side of the conical ring, and the pressure ring is threadedly connected to the sleeve and is located on one side of the plurality of spring sheets.

[0009] Among them, the cable connector includes a waterproof cable socket, a connecting plate and a connecting screw. The connecting plate is arranged on one side of the instrument housing. The connecting screw passes through the connecting plate and is connected to the instrument housing. The waterproof cable socket is fixed on the connecting plate.

[0010] Wherein, the cable connector further comprises a first sealing ring, which is fixedly connected to the connecting plate and is located between the connecting plate and the instrument housing.

[0011] Among them, the single-connected tube static level also includes a data transmission module, which includes a data storage unit, a data transmission unit and an alarm unit. The data storage unit is connected to the waterproof cable socket, the data transmission unit is connected to the data storage unit, and the alarm unit is connected to the data transmission unit.

[0012] Wherein, the single-connected-tube static level also includes a solar charger, and the solar charger is arranged on the instrument housing.

[0013] The solar charger comprises a solar panel, a first terminal, a second terminal and a power supply, wherein the power supply is fixed in the instrument housing, the first terminal is connected to the power supply, the solar panel is fixed on the instrument housing, the second terminal is connected to the solar panel, and is detachably connected to the first terminal.

[0014] The present invention provides a single-connected tube static level, in which the instrument housing serves as the main structure of the entire system, and the liquid can flow freely in the instrument housing to be monitored by an absolute pressure sensor. The liquid inlet and outlet pipelines are respectively connected to the instrument housing, providing channels for the liquid to enter and exit, which is convenient for filling or discharging operations before and after use. The absolute pressure sensor group is arranged on one side of the detection cavity, and is used to accurately measure the pressure changes of the liquid in the cavity, and then calculate the corresponding liquid level information. Through the above design, the absolute pressure sensor group is adopted, and the negative pressure side is a vacuum environment relative to the prior art, which is not affected by the ambient temperature and is not affected by the use operation; the sensor is prevented from directly contacting the air, and the influence of air humidity on the semiconductor sensor or causing permanent damage to the sensor is eliminated; permanent damage to the level sensor due to misoperation (such as water inflow into the air pipe) is avoided; the structure saves one pipeline, saves product costs, reduces installation and maintenance workload, reduces pipeline leaks, and improves product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural diagram of a single-connected-tube static level according to the first embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional structural diagram of a single-connected-tube static level according to the first embodiment of the present invention.

[0018] Figure 3 It is a structural diagram of a single-connected-tube static level according to the second embodiment of the present invention.

[0019] Figure 4 It is a cross-sectional structural diagram of a single-connected-tube static level according to the second embodiment of the present invention.

[0020] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0021] Figure 6 is a structural diagram of a data transmission module according to a second embodiment of the present invention.

[0022] Instrument housing 101, circuit board 102, cable connector 103, absolute pressure sensor 104, liquid inlet pipeline 105, connector 106, passage 107, connector body 108, sleeve 109, tapered ring 110, spring 111, pressure ring 112, waterproof cable socket 113, connecting plate 114, connecting screw 115, first sealing ring 116, data storage unit 118, data transmission unit 119, alarm unit 120, solar panel 122, first terminal 123, second terminal 124, power supply 125, anti-slip pattern 126, second sealing ring 127. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] First embodiment See also Figure 1~Figure 2 The present invention provides a single-connected tube static level, including an instrument housing 101, a circuit board 102 and a cable connector 103, wherein the cable connector 103 is arranged on the instrument housing 101, and the circuit board 102 is arranged in the instrument housing 101. The present invention also includes an absolute pressure sensor 104 and a liquid inlet pipeline 105, wherein the liquid inlet pipeline 105 passes through the instrument housing 101, and the absolute pressure sensor 104 is arranged in the instrument housing 101 and is connected to the liquid inlet pipeline 105.

[0026] In this embodiment, the instrument housing 101 serves as the main structure of the entire system, and the liquid can flow freely in the instrument housing 101 to be monitored by the absolute pressure sensor 104. The liquid inlet pipeline 105 and the liquid outlet pipeline are respectively connected to the instrument housing 101, providing a channel for the liquid to enter and exit, which is convenient for filling or discharging operations before and after use. The absolute pressure sensor 104 group is arranged on one side of the detection cavity, which is used to accurately measure the pressure change of the liquid in the cavity, and then calculate the corresponding liquid level information. Through the above design, the absolute pressure sensor 104 group is used, and the negative pressure side is a vacuum environment relative to the prior art, which is not affected by the ambient temperature and the use operation; the sensor is prevented from directly contacting the air, and the air humidity is prevented from affecting the semiconductor sensor or causing permanent damage to the sensor; the level sensor is prevented from being permanently damaged due to misoperation (such as water entering the air pipe); the structure saves a pipeline, saves product costs, reduces installation and maintenance workload, reduces pipeline leaks, and improves product quality.

[0027] Second embodiment See also Figure 3~Figure 6On the basis of the first embodiment, the present invention further provides a single-connected tube static level, the liquid inlet pipeline 105 includes two connectors 106 and a passage 107, the passage 107 is arranged in the instrument housing 101 and is connected to the absolute pressure sensor 104, the two connectors 106 are connected to both ends of the passage 107 and are fixed to the instrument housing 101, and the connector 106 is used to connect to an external pipeline.

[0028] The connector 106 includes a connector body 108, a sleeve 109 and a conical ring 110. The connector body 108 is connected to the instrument housing 101. The sleeve 109 is fixedly connected to the connector body 108 and is located on one side of the connector body 108. The conical ring 110 is made of elastic material and is arranged in the sleeve 109.

[0029] The connector body 108 is directly connected to the instrument housing 101, so that the liquid can flow smoothly into the system. The sleeve 109 is combined with the connector body 108 by a fixed connection, and is located on one side of the connector body 108, mainly used to protect the internal conical ring 110. The conical ring 110 is made of elastic material, which can adapt to the connection of pipes of different diameters, and is arranged inside the sleeve 109 to achieve a sealing effect through compression deformation.

[0030] The connector 106 further includes a plurality of spring pieces 111 and a pressure ring 112 . The plurality of spring pieces 111 are disposed on one side of the conical ring 110 . The pressure ring 112 is threadedly connected to the sleeve 109 and is located on one side of the plurality of spring pieces 111 .

[0031] In addition, the connector 106 further includes a plurality of spring pieces 111 and a pressure ring 112. The spring pieces 111 are located on one side of the conical ring 110 and can provide additional support when the conical ring 110 is under pressure, thereby helping it to seal better. The pressure ring 112 is threadedly connected to the sleeve 109 and is located on one side of the plurality of spring pieces 111. When the pressure ring 112 is tightened, the spring pieces 111 can be squeezed to further enhance the sealing of the conical ring 110.

[0032] The cable connector 103 includes a waterproof cable socket 113 , a connecting plate 114 and a connecting screw 115 . The connecting plate 114 is arranged on one side of the instrument housing 101 . The connecting screw 115 passes through the connecting plate 114 and is connected to the instrument housing. The waterproof cable socket 113 is fixed on the connecting plate 114 .

[0033] The connecting plate 114 is fixed to one side of the instrument housing 101 , and the connecting screws 115 pass through the connecting plate 114 and are connected to the instrument housing 101 , ensuring that the waterproof cable socket 113 is securely installed at a designated position.

[0034] The cable connector 103 further includes a first sealing ring 116 , which is fixedly connected to the connecting plate 114 and is located between the connecting plate 114 and the instrument housing 101 .

[0035] In order to enhance the sealing performance, a first sealing ring 116 is further provided between the waterproof cable socket 113 and the connecting plate 114 to prevent liquid leakage from affecting the operation of the sensor.

[0036] The single-connected tube static level also includes a data transmission module, which includes a data storage unit 118, a data transmission unit 119 and an alarm unit 120. The data storage unit 118 is connected to the waterproof cable socket 113, the data transmission unit 119 is connected to the data storage unit 118, and the alarm unit 120 is connected to the data transmission unit.

[0037] The data storage unit 118 is connected to the waterproof cable socket 113 and is responsible for storing the data collected by the sensor; the data transmission unit 119 is connected to the data storage unit 118 and is used to send the stored data to a remote device; the alarm unit 120 is connected to the data transmission unit 119 and triggers an alarm when an abnormal situation is detected.

[0038] The single-connected-tube static level also includes a solar charger, which is disposed on the instrument housing 101 .

[0039] The solar charger includes a solar panel 122, a first terminal 123, a second terminal 124 and a power supply 125. The power supply 125 is fixed in the instrument housing 101, the first terminal 123 is connected to the power supply 125, the solar panel 122 is fixed on the instrument housing 101, the second terminal 124 is connected to the solar panel 122, and is detachably connected to the first terminal 123.

[0040] The detection component is also equipped with a solar charger, which is set on the top cover and uses a solar panel 122 for power supply. The solar panel 122 is fixed on the top cover and is detachably connected to the first terminal 123 (the latter is connected to the power supply 125 fixed on the base) through the second terminal 124, which is convenient for maintenance and replacement.

[0041] The top cover has an anti-slip pattern 126 , and the anti-slip pattern 126 is arranged on the top of the top cover.

[0042] In order to improve the user experience, the top of the top cover is also designed with anti-slip grooves 126 to increase friction and facilitate manual operation.

[0043] The detection assembly further includes a second sealing ring 127 , and the second sealing ring 127 is disposed between the top cover and the cavity of the circuit board 102 .

[0044] In addition, in order to ensure the sealing between the top cover and the cavity of the circuit board 102, a second sealing ring 127 is provided between the two to prevent any external impurities from entering the cavity, thereby ensuring the stability and safety of the equipment operation. Through the above-mentioned improvement measures, the present invention provides a more advanced and reliable single-connected tube static level, which not only improves the detection accuracy, but also enhances the durability and practicality of the equipment.

[0045] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A single-connected tube static level, comprising an instrument housing, a circuit board and a cable connector, wherein the cable connector is arranged on the instrument housing, and the circuit board is arranged in the instrument housing, characterized in that: It also includes an absolute pressure sensor and a liquid inlet pipeline. The liquid inlet pipeline passes through the instrument housing. The absolute pressure sensor is arranged in the instrument housing and communicated with the liquid inlet pipeline.

2. A single-connected-tube static level as claimed in claim 1, characterized in that: The liquid inlet pipeline includes two connectors and a passage. The passage is arranged in the instrument housing and is connected to the absolute pressure sensor. The two connectors are connected to both ends of the passage and are fixed to the instrument housing. The connectors are used to connect to external pipelines.

3. A single-connected-tube static level as claimed in claim 2, characterized in that: The connector includes a connector body, a sleeve and a conical ring. The connector body is connected to the instrument housing. The sleeve is fixedly connected to the connector body and is located on one side of the connector body. The conical ring is made of elastic material and is arranged in the sleeve.

4. A single-connected-tube static level as claimed in claim 3, characterized in that: The connector also includes a plurality of spring sheets and a pressure ring. The plurality of spring sheets are arranged on one side of the conical ring. The pressure ring is threadedly connected to the sleeve and is located on one side of the plurality of spring sheets.

5. The single-connected-tube static level as claimed in claim 1, characterized in that: The cable connector comprises a waterproof cable socket, a connecting plate and connecting screws, wherein the connecting plate is arranged on one side of the instrument housing, the connecting screws pass through the connecting plate and are connected to the instrument housing, and the waterproof cable socket is fixed on the connecting plate.

6. A single-connected-tube static level as claimed in claim 5, characterized in that: The cable connector further comprises a first sealing ring, which is fixedly connected to the connecting plate and is located between the connecting plate and the instrument housing.

7. A single-connected-tube static level as claimed in claim 6, characterized in that: The single-connected tube static level also includes a data transmission module, which includes a data storage unit, a data transmission unit and an alarm unit. The data storage unit is connected to the waterproof cable socket, the data transmission unit is connected to the data storage unit, and the alarm unit is connected to the data transmission unit.

8. The single-connected-tube static level as claimed in claim 1, characterized in that: The single-connected-tube static level also includes a solar charger, which is arranged on the instrument housing.

9. A single-connected-tube static level as claimed in claim 8, characterized in that: The solar charger includes a solar panel, a first terminal, a second terminal and a power source, wherein the power source is fixed in the instrument housing, the first terminal is connected to the power source, the solar panel is fixed on the instrument housing, the second terminal is connected to the solar panel and is detachably connected to the first terminal.

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