Level sensor convenient to install

Abstract

The level sensor convenient to install comprises a base and installation holes, a circle of installation holes are formed in the base, a shell is fixedly connected to the top of the base, a connector is fixedly connected to the position, close to the lower edge, of the outer side of the shell, and a plurality of cutting grooves are formed in the outer surface of the shell. The utility model has the advantages that the proper length of the shell can be selected according to the site condition, after the base and the shell are installed, liquid is filled, and the liquid level of all the shells is confirmed to be stable, the PVC shell can be secondarily cut according to the actual condition, the cutting groove is designed, the shell is cut along the cutting groove, so that the accurate ring cutting of the shell is facilitated, and the production efficiency is improved. And finally, an upper shell is bonded above the outer shell, and a sensor electronic part is installed. Compared with a sensor with a traditional structure, the installation range is expanded, namely, the traditional sensor is lengthened under the condition that the height of the shell is increased, the sensor with a new structure does not need to be lengthened, and the height of the shell is freely adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of level sensors, in particular to a level sensor which is easy to install. Background Art

[0002] The magnetostrictive level sensor is a precision instrument that uses the magnetostrictive effect to measure liquid level or elevation changes.

[0003] The existing structure of magnetic level sensor is that there is a water tank on the top and a sensor on the bottom. The use scenario of the sensor is limited by the length of the water tank. That is, due to the limitation of the on-site installation location, the sensor cannot be installed on the same horizontal line. If the height difference exceeds the height of the water tank, it cannot be installed. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a level sensor that is easy to install, so as to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, an embodiment of the utility model provides a level sensor that is easy to install, including a base and a mounting hole. The base is provided with a circle of mounting holes, and the top of the base is fixedly connected to a housing;

[0007] An interface is fixedly connected to the outer side of the shell near the lower edge, and a plurality of cutting grooves are opened on the outer surface of the shell;

[0008] The top of the housing is fixedly connected with an upper shell, and the interior of the upper shell is fixedly connected with a collection circuit;

[0009] A liquid level sensing sensor is fixedly connected to the bottom of the acquisition circuit, and the liquid level sensing sensor is located inside the shell.

[0010] Preferably, in any of the above schemes, the base is bonded to the shell, and the base is disc-shaped.

[0011] Adopting the above technical solution: This level sensor is an inverted structure. It adopts a segment structure. The bottom is the inlet and outlet pipes, i.e. the interface, the middle is the PVC shell. The top is the inverted sensor electronic part, i.e. the upper shell and the collection circuit part.

[0012] Adopting the above technical solution: the core structure of the device is: shell, interface, cutting groove, upper shell, collection circuit, and liquid level sensing sensor.

[0013] Adopting the above technical solution: there are two interfaces at the front and back of the shell, which are liquid interfaces, and two symmetrical communication interfaces are also arranged at the upper shell, which are shown in the figure.

[0014] Preferably, any of the above schemes is that the mounting holes penetrate the base, and the mounting holes are arranged in a circular array on the base.

[0015] Preferably, in any of the above schemes, the outer shell is made of plastic material, and the top end of the outer shell is bonded to the upper shell.

[0016] Preferably, any of the above schemes is that the cutting groove cuts the outer shell in a circle, and below the acquisition circuit are the liquid level sensing sensor, the outer shell, the liquid, and the interface in sequence.

[0017] The above technical solution is adopted: the specific structure of the acquisition circuit and the liquid level sensor is: electronic warehouse, magnetostrictive wire, float, electronic energy pickup mechanism, signal processing circuit, and communication interface. Electronic warehouse: The electronic warehouse integrates the measurement circuit and the control circuit. The measurement circuit is responsible for sending the starting pulse and receiving the return pulse generated by the magnetic float. The control circuit is responsible for processing these pulse signals and converting them into readable liquid level values.

[0018] Magnetostrictive wire (waveguide wire): The magnetostrictive wire is installed in the measuring rod, which is usually a non-magnetic stainless steel tube. The magnetostrictive wire plays a key role in the measurement process. It is both the transmission medium of the pulse signal and the place where the magnetostrictive effect occurs.

[0019] Float: The float contains a permanent magnetic field, which floats up and down with the change of liquid level. The magnetic field of the float interacts with the magnetic field in the magnetostrictive wire to produce a magnetostrictive effect.

[0020] Electronic energy pickup mechanism: The electronic energy pickup mechanism is used to sense the twisting of the magnetostrictive wire due to the magnetostrictive effect and convert it into corresponding current pulses.

[0021] Signal processing circuit: The signal processing circuit is responsible for receiving the current pulses sent by the electronic energy pickup mechanism and calculating the time difference between the two pulses. There is a certain mathematical relationship between this time difference and the liquid level value, and the accurate liquid level value can be obtained through calculation.

[0022] Communication interface: The acquisition circuit also includes a communication interface, which is used to transmit the measured liquid level value to an external device or system. Common communication interfaces include RS485.

[0023] Preferably, any of the above schemes is that the liquid level sensing sensor is arranged vertically, and part of the liquid level sensing sensor is located in the liquid inside the shell.

[0024] The above technical solution is adopted: the shell length can be selected according to the site conditions. After the base and shell are installed, the liquid is added. After confirming that the liquid level of all shells is stable, the PVC shell can be cut twice according to the actual situation. The cutting groove design makes it easy to cut the shell accurately along the cutting groove. Finally, the upper shell is bonded on the upper part of the shell and the electronic part of the sensor is installed. Compared with the traditional structure sensor, the installation range is expanded.

[0025] This is equivalent to extending the shell height. In this case, the traditional sensor also needs to be lengthened, while the new structure sensor does not need to be lengthened and the shell height can be adjusted at will.

[0026] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0027] This easy-to-install level sensor adopts an inverted design. The core structure of this device is: shell, interface, cutting groove, upper shell, acquisition circuit, and liquid level sensor. The length of the shell can be selected according to the site conditions. After the base and shell are installed, the liquid is added. After confirming that the liquid level of all shells is stable, the PVC shell can be cut twice according to the actual situation. The design of the cutting groove makes it easy to cut the shell accurately along the cutting groove. Finally, the upper shell is bonded on the top of the shell and the electronic part of the sensor is installed. Compared with traditional structure sensors, the installation range is expanded.

[0028] This is equivalent to extending the shell height. In this case, the traditional sensor also needs to be lengthened, while the new structure sensor does not need to be lengthened and the shell height can be adjusted at will.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0032] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0033] Figure 3 This is a front view structural schematic diagram of the utility model;

[0034] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0035] In the figure: 1-base, 2-mounting hole, 3-housing, 4-interface, 5-cutting groove, 6-upper shell, 7-collection circuit, 8-liquid level sensor, 9-liquid. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1-4 As shown, the level sensor which is easy to install comprises a base 1 and mounting holes 2. A circle of mounting holes 2 is formed on the base 1, and a housing 3 is fixedly connected to the top of the base 1.

[0039] An interface 4 is fixedly connected to the outer side of the housing 3 near the lower edge, and a plurality of cutting grooves 5 are formed on the outer surface of the housing 3;

[0040] The top of the housing 3 is fixedly connected with an upper housing 6, and the interior of the upper housing 6 is fixedly connected with a collection circuit 7;

[0041] A liquid level sensing sensor 8 is fixedly connected to the bottom of the acquisition circuit 7 , and the liquid level sensing sensor 8 is located inside the housing 3 .

[0042] Embodiment 1: The base 1 is bonded to the housing 3, and the base 1 is a disc. This level sensor is an inverted structure. A three-section structure is adopted. The bottom is the liquid inlet and outlet pipe, i.e., the interface 4, and the middle is the PVC housing 3. The top is the inverted sensor electronic part, i.e., the upper housing 6 and the collection circuit 7. The core structure of this device is: housing 3, interface 4, cutting groove 5, upper housing 6, collection circuit 7, and liquid level sensing sensor 8. The mounting hole 2 runs through the base 1, and the mounting hole 2 is arranged in a circular array on the base 1.

[0043] There are two interfaces 4 at the front and rear of the housing 3, which are liquid interfaces. Two symmetrical communication interfaces are also provided at the upper housing 6, both of which are shown in the figure.

[0044] Embodiment 2: The outer shell 3 is made of plastic, and the top of the outer shell 3 is bonded to the upper shell 6. The cutting groove 5 cuts the outer shell 3, and below the acquisition circuit 7 are the liquid level sensing sensor 8, the outer shell 3, the liquid, and the interface 4 in sequence. The specific structure of the acquisition circuit 7 and the liquid level sensing sensor 8 is: an electronic warehouse, a magnetostrictive wire, a float, an electronic energy pickup mechanism, a signal processing circuit, and a communication interface. Electronic warehouse: The electronic warehouse integrates the measurement circuit and the control circuit. The measurement circuit is responsible for sending a start pulse and receiving a return pulse generated by the magnetic float. The control circuit is responsible for processing these pulse signals and converting them into readable liquid level values.

[0045] Magnetostrictive wire (waveguide wire): The magnetostrictive wire is installed in the measuring rod, which is usually a non-magnetic stainless steel tube. The magnetostrictive wire plays a key role in the measurement process. It is both the transmission medium of the pulse signal and the place where the magnetostrictive effect occurs.

[0046] Float: The float contains a permanent magnetic field, which floats up and down with the change of liquid level. The magnetic field of the float interacts with the magnetic field in the magnetostrictive wire to produce a magnetostrictive effect.

[0047] Electronic energy pickup mechanism: The electronic energy pickup mechanism is used to sense the twisting of the magnetostrictive wire due to the magnetostrictive effect and convert it into corresponding current pulses.

[0048] Signal processing circuit: The signal processing circuit is responsible for receiving the current pulses sent by the electronic energy pickup mechanism and calculating the time difference between the two pulses. There is a certain mathematical relationship between this time difference and the liquid level value, and the accurate liquid level value can be obtained through calculation.

[0049] Communication interface: The acquisition circuit 7 also includes a communication interface for transmitting the measured liquid level value to an external device or system. Common communication interfaces include RS485. The liquid level sensing sensor 8 is arranged vertically, and part of the liquid level sensing sensor 8 is located in the liquid inside the housing 3.

[0050] Embodiment 3: The base 1 is installed by means of a plurality of screws and mounting holes 2. The housing 3 is a top opening structure, after adding water, the height of the housing 3 is adjusted and cut, and then the upper housing 6, the collection circuit 7, and the liquid level sensing sensor 8 are installed as a whole structure.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] The level sensor, which is easy to install, adopts a flip-chip design. The core structure of the device is: shell 3, interface 4, cutting groove 5, upper shell 6, acquisition circuit 7, and liquid level sensor 8. The length of the shell 3 can be selected according to the site conditions. After the base 1 and the shell 3 are installed, the liquid is added. After confirming that the liquid level of all shells 3 is stable, the PVC shell 3 can be cut twice according to the actual situation. The design of the cutting groove 5 makes it easy to cut the shell 3 accurately along the cutting groove 5. Finally, the upper shell 6 is bonded on the top of the shell 3 to install the electronic part of the sensor. Compared with the traditional structure sensor, the installation range is expanded.

[0053] This is equivalent to extending the height of the shell 3. In this case, the traditional sensor also needs to be lengthened, while the new structure sensor does not need to be lengthened and the shell height can be adjusted at will.

Claims

1. A level sensor that is easy to install, characterized in that: It comprises a base (1) and mounting holes (2), wherein a circle of mounting holes (2) is formed on the base (1), and a housing (3) is fixedly connected to the top of the base (1); An interface (4) is fixedly connected to the outer side of the shell (3) near the lower edge, and a plurality of cutting grooves (5) are formed on the outer surface of the shell (3); The top of the housing (3) is fixedly connected to an upper housing (6), and the interior of the upper housing (6) is fixedly connected to a collection circuit (7); the bottom of the collection circuit (7) is fixedly connected to a liquid level sensing sensor (8), and the liquid level sensing sensor (8) is located inside the housing (3).

2. A level sensor that is easy to install as claimed in claim 1, characterized in that: The base (1) is bonded to the outer shell (3), and the base (1) is disc-shaped.

3. A level sensor that is easy to install as claimed in claim 2, characterized in that: The mounting holes (2) penetrate the base (1), and the mounting holes (2) are arranged in a circumferential array on the base (1).

4. A level sensor that is easy to install as claimed in claim 3, characterized in that: The outer shell (3) is made of plastic material, and the top end of the outer shell (3) is bonded to the upper shell (6).

5. A level sensor that is easy to install as claimed in claim 4, characterized in that: The cutting groove (5) cuts the outer shell (3) in a circular manner, and below the acquisition circuit (7) are the liquid level sensing sensor (8), the outer shell (3), the liquid, and the interface (4) in sequence.

6. A level sensor that is easy to install as claimed in claim 5, characterized in that: The liquid level sensing sensor (8) is arranged vertically, and part of the liquid level sensing sensor (8) is located in the liquid inside the housing (3).

Images