CN216206428U - Package structure of miniature photoelectric liquid level gauge for indicating the liquid level of chemical solution for detection - Google Patents

Abstract

The package structure of a miniature photoelectric liquid level gauge for indicating the liquid level of a chemical solution for detection includes an inner sealing gasket, an outer sealing gasket, a sensor jacket and a sensor inner jacket with a sensor inserted; wherein, the sensor jacket is arranged on the sensor inner jacket , the inner sealing gasket is arranged in the outer casing of the sensor, and the outer sealing gasket is arranged outside the inner sealing gasket. The package structure of the miniature photoelectric liquid level gauge of the utility model has the advantages of small size, simple, compact and reasonable structure, and is easy to be installed on a container with a small volume and a thin outer wall, especially a small-dose analytical chemical solution storage container.

Description

Package structure of miniature photoelectric liquid level gauge used to indicate the liquid level of chemical solution for detection

technical field

The utility model relates to an encapsulation structure, in particular to an encapsulation structure of a miniature photoelectric liquid level gauge used for indicating the liquid level of a chemical solution for detection.

Background technique

Different chemical solutions need to be stored, prepared and quantitatively pipetted during the operation of analytical chemistry automated testing instruments. For the storage of chemical solutions, the instrument needs to automatically determine the key point of the liquid level (such as full or empty) in the reagent bottle of a certain volume. ), for the quantitative extraction of a certain volume of chemical solution during the detection process, the extraction volume needs to be controlled (the liquid level is lowered to the target liquid level). An appropriate micro liquid level gauge (switch) is installed in the corresponding reagent bottle (container) to realize automatic liquid level measurement. At present, the commonly used electronic level sensors (liquid level switches) include float level gauges, radar level gauges, capacitive level gauges, ultrasonic level gauges, photoelectric level switches, etc. Among them, photoelectric level switches have better The ability to adapt to environmental space is more suitable for liquid level detection, alarm and control in small containers, especially for medium such as acid, alkali, salt solution and other chemical solutions.

At present, the packaged photoelectric level gauge (liquid level) switches on the market are mainly used in water purification/sewage treatment, papermaking, printing, power generation/substation equipment, petrochemical, food, beverage, electrical, dye industry, hydraulic machinery, etc. Containers such as machinery and equipment, container pipes, liquid reservoirs, circulating barrels, and oil reservoirs in the industrial field are large in size and usually have an outer diameter of ≥ Φ20. Analytical chemistry automated testing instruments often use milliliter-level solution consumption during operation. , the total volume of reagent bottles (containers) varies from tens to hundreds of milliliters, so this type of product is not suitable for installation in reagent bottles (containers) in analytical chemistry automated testing instruments.

Utility model content

In order to solve the problem that the current photoelectric liquid level switch cannot be applied to automatic instruments for analytical chemical detection, the purpose of this utility model is to provide a miniature photoelectric liquid level gauge package structure for indicating the liquid level of the chemical solution for detection The level switch is encapsulated in a micro structure suitable for installation on a chemical solution container for detection, and a single micro photoelectric liquid level switch can be encapsulated according to actual needs to realize single-point liquid level measurement.

In order to achieve the above object, the utility model adopts the following technical solutions:

The package structure of a miniature photoelectric liquid level gauge for indicating the liquid level of a chemical solution for detection includes an inner sealing gasket, an outer sealing gasket, a sensor jacket and a sensor inner jacket with a sensor inserted; wherein, the sensor jacket is arranged on the sensor inner jacket , the inner sealing gasket is arranged in the outer casing of the sensor, and the outer sealing gasket is arranged outside the inner sealing gasket.

Further, the inner sealing gasket is provided with an external thread, and the sensor jacket is provided with an internal thread matching the external thread.

Further, the inner sleeve of the sensor is provided with an axial connection hole, a radial connection hole and a lead socket port.

Further, a lead socket is arranged on the inner sleeve of the sensor.

Further, the lead socket is inserted into the lead socket port of the inner sleeve of the sensor.

Further, the three end feet of the sensor are arranged in the axial connection holes of the inner sleeve of the sensor.

Further, the three end pins of the lead socket are arranged in the radial connection holes of the inner sleeve of the sensor.

Further, the lead socket is provided with a plug, and the plug is provided with a connecting wire.

Further, the sensor cover is arranged on the container.

Compared with the prior art, the utility model has the following technical effects: the encapsulation structure of the miniature photoelectric liquid level gauge of the utility model has a small size, a simple, compact and reasonable structure, and is easy to be installed in a container with a smaller volume and a thinner outer wall. On, especially small doses of analytical chemical solution storage containers.

Further, the encapsulation structure of the miniature photoelectric liquid level gauge of the utility model is equipped with a lead socket, which is convenient for sensor encapsulation, and can be connected to the control circuit by connecting the electronic signal line through the matching plug conveniently and quickly.

Description of drawings

FIG. 1 is a schematic diagram of the packaging structure of the miniature photoelectric liquid level gauge of the present invention.

Figure 2 is a schematic structural diagram of a micro liquid level sensor.

FIG. 3 is a schematic diagram of the structure of the lead socket.

In the figure, 1. Sensor; 2. Sensor jacket; 3. Sensor inner jacket; 4. Inner gasket; 5. Outer gasket; 6. Lead socket.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings.

In order to facilitate the understanding of the present utility model, the present utility model will be more fully described below with reference to the related drawings. The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

The basic steps/thoughts of the design of the present utility model: 1. For the encapsulation of the single-point liquid level miniature photoelectric liquid level gauge, it is necessary to connect the three end wires of the miniature liquid level sensor with the electronic signal wire. The lead socket 6 is designed in the middle, which is convenient to connect with the plug connected with the electronic signal line; ② In order to keep the miniature photoelectric liquid level sensor and the container sealed, a sealing gasket is used to press the seal at the connection between the sensor and the sensor seat and the container; ③ For single-point micro-level sensors In the photoelectric level gauge, the sensor inner sleeve and the sensor outer sleeve are connected by threads, and the connection between the sensor outer sleeve and the container is directly threaded. The two groups of vertically intersecting wire holes (three holes in each group) coincide with the end wires of the lead socket 6 after vertically bending the sensor end wires during packaging.

Specific embodiments of the present utility model are given below. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of the present application all fall into the protection scope of the present utility model.

Following the above technical solution, as shown in FIG. 1 to FIG. 3 , this embodiment provides a package structure of a miniature photoelectric liquid level gauge for indicating the single-point liquid level of a chemical solution for detection.

As shown in FIG. 1 , a package structure of a miniature photoelectric level gauge used to indicate the single-point liquid level of a chemical solution for detection includes an inner sensor sleeve 3 , an inner sealing gasket 4 , a lead socket 6 , and an outer sealing gasket 5 and sensor housing 2. The sensor outer casing 2 is arranged on the sensor inner casing 3, the inner sealing gasket 4 is arranged in the sensor outer casing 2, and an outer sealing gasket 5 is arranged outside the inner sealing gasket 4.

Specifically, the sensor inner sleeve 3 is provided with an axial connection hole, a radial connection hole and a lead socket port, the inner sealing gasket 4 is provided with an external thread, and the sensor outer sleeve 2 is provided with an internal thread matching the external thread, The sensor inner casing 4 is arranged in the sensor outer casing 2 , and an outer sealing gasket 5 is arranged outside the sensor inner casing 4 .

A lead socket 6 is provided on the sensor inner sleeve 3 . Preferably, the lead socket 6 is inserted into the lead socket port of the sensor inner sleeve 3 . Further, the three end pins of the lead socket 6 are arranged in the radial connection holes of the sensor inner sleeve 3 . Referring to FIG. 3 , the lead socket 6 may be provided with a plug, and the plug is provided with a connecting wire.

The three end feet of the sensor 1 are arranged in the axial connection holes of the sensor inner sleeve 3 .

The sensor housing 2 is arranged on the container.

When packaging, first insert the sensor 1 into the sensor inner sleeve 3 along the sensor port with the three end feet as the head, wherein the three end feet of the sensor penetrate into the axial connection hole of the sensor inner sleeve 3 and fold to the radial connection hole. In parallel, insert the inner sealing gasket 4 from the head of the sensor 1, then screw it into the sensor outer sleeve 2 through the external thread of the sensor inner sleeve 4, and then insert the lead socket 6 into the lead socket port of the sensor inner sleeve 3, wherein, The three end pins of the lead socket 6 are inserted into the radial connection holes of the sensor inner sleeve 3, and are combined with the three end pins of the sensor 1, and the two are welded to complete the package. When in use, add the packaged miniature photoelectric level gauge with the outer sealing gasket 5, connect it to the container to be installed through the thread on the sensor jacket 2, and insert the plug and connection line matched with the lead socket 6, so as to Collect electronic signals.

The above only describes the best embodiment of the present utility model, but should not be construed as a limitation on the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. Any changes made within the protection scope of the independent claims of the present utility model are all within the protection scope of the present utility model.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims (9)

1. The micro photoelectric liquid level meter packaging structure is used for indicating the liquid level of a chemical solution for detection and is characterized by comprising an inner sealing gasket (4), an outer sealing gasket (5), a sensor outer sleeve (2) and a sensor inner sleeve (3) inserted with a sensor (1); the sensor outer sleeve (2) is arranged on the sensor inner sleeve (3), the inner sealing gasket (4) is arranged in the sensor outer sleeve (2), and the outer sealing gasket (5) is arranged on the outer side of the inner sealing gasket (4).

2. The micro electro-optical liquid level meter package for indicating the liquid level of a chemical solution for detection as claimed in claim 1, wherein the inner sealing gasket (4) is provided with an external thread, and the sensor housing (2) is provided with an internal thread matching with the external thread.

3. The micro electro-optical level gauge packaging structure for indicating the level of a chemical solution for detection according to claim 1, wherein the sensor inner case (3) is provided with an axial connection hole, a radial connection hole, and a lead socket port.

4. The micro electro-optical liquid level meter package structure for indicating the liquid level of a chemical solution for detection according to claim 3, wherein the lead socket (6) is provided on the sensor inner case (3).

5. The package structure of micro electro-optical level meter for indicating the level of chemical solution for detection according to claim 4, wherein the lead socket (6) is inserted into the lead socket port of the sensor inner case (3).

6. The packaging structure of a micro-electro-optical liquid level meter for indicating the liquid level of a chemical solution for detection according to claim 4, wherein three pins of the sensor (1) are disposed in the axial connection hole of the sensor inner case (3).

7. The micro electro-optical level gauge packaging structure for indicating the level of a chemical solution for sensing according to claim 5, wherein three terminal pins of the lead socket (6) are disposed in radial connection holes of the sensor inner case (3).

8. The micro electro-optical liquid level meter package structure for indicating the liquid level of a chemical solution for detection as claimed in claim 5, wherein the lead socket (6) is provided with a plug, and the plug is provided with a connecting wire.

9. The micro electro-optical level gauge package for indicating a level of a chemical solution for sensing according to claim 1, wherein the sensor housing (2) is provided on the container.

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