Housing of a liquid level sensor

Abstract

This utility model discloses a housing for a liquid level sensor, relating to the field of liquid level sensor technology. It includes a left end housing, a right end housing, an extended left end housing, and an extended right end housing. Each of the left and right end housings has a connector at one end, and a limiting ring is provided at the end of the connector. Both the extended left and right end housings have internal connecting grooves and limiting grooves. The advantages of this utility model are: through the design of the connector, limiting ring, connecting groove, limiting groove, fixing plate, threaded rod, connecting plate, fixing hole, and nut, when the extended left or right end housing is damaged and needs replacement, it can be directly disassembled from the middle for replacement, thereby improving the convenience of disassembly and replacement, and making overall installation and disassembly more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of liquid level sensor technology, specifically to a housing for a liquid level sensor. Background Technology

[0002] Capacitive level sensors are a type of variable dielectric capacitor that utilizes the change in capacitance caused by the change in the surface of the measured medium. They have advantages such as large dynamic range, fast response speed, small zero drift, and strong adaptability, and are widely used in liquid level measurement. In addition, existing level sensors are mainly divided into two categories: contact level sensors and non-contact level sensors.

[0003] According to a liquid level sensor housing with application number 201922215853.8, the extension unit includes several extension sections. The number of extension sections can be selected according to the volume of the container containing the liquid to be measured, so as to assemble liquid level sensors of different length specifications, making the liquid level sensor applicable to containers of different specifications and improving the applicability of the liquid level sensor. In addition, the first section, the last section and the extension sections are connected in a detachable manner, which facilitates installation and disassembly, improves maintenance efficiency, and when damage occurs, it is not necessary to replace the entire liquid level sensor, but only to replace the damaged parts, which can reduce production and use costs.

[0004] However, the housing of the above-mentioned liquid level sensor has the following shortcomings. Although the housing can be installed and disassembled and only the damaged part needs to be replaced when it is damaged, the sensor connection wire runs through the first section, the last section and the extension section. When the extension section needs to be disassembled and replaced, the first section must be disassembled first. The damaged extension section cannot be directly disassembled and replaced, which has certain shortcomings. Therefore, we propose a housing for the liquid level sensor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a housing for a liquid level sensor, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a housing for a liquid level sensor, comprising a left end housing, a right end housing, an extended left end housing, and an extended right end housing. Each of the left and right end housings has a connector at one end, and a limit ring is provided at the end of each connector. Both the extended left and right end housings have internal connecting grooves and limit grooves. Fixing plates are fixedly installed on both sides of the right end housing and the extended right end housing. Two threaded rods are fixedly installed on one side of each fixing plate. Connecting plates are fixedly installed on both sides of the left end housing and the extended left end housing. Two fixing holes are provided inside each connecting plate. The threaded rods engage with the fixing holes, and nuts are threaded onto the outer side of each threaded rod.

[0007] Furthermore, a positioning pin is fixedly installed on one side of the fixing plate, and a positioning hole is opened on one side of the connecting plate, with the positioning pin cooperating with the positioning hole.

[0008] Furthermore, both ends of the extended left shell and the extended right shell are provided with two end left shells and two end right shells.

[0009] Furthermore, the connecting plate has an internal mounting groove, and a sealing strip is provided inside the mounting groove, which cooperates with the fixing plate.

[0010] Furthermore, the connector and the limiting ring mate with the connecting groove and the limiting groove.

[0011] Furthermore, the middle parts of the left end shell, the right end shell, the extended left shell, and the extended right shell are hollowed out.

[0012] This utility model provides a housing for a liquid level sensor, which has the following advantages: The housing of this liquid level sensor, through the setting of connector, limiting ring, connecting groove, limiting groove, fixing plate, threaded rod, connecting plate, fixing hole and nut, can be directly disassembled from the middle for replacement when the extended left or extended right housing is damaged and needs to be replaced. This improves the convenience of disassembly and replacement, and the overall installation and disassembly are more convenient and quick. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the end right shell and the extended right shell of this utility model; Figure 3 This is a schematic diagram of the end left shell and the extended left shell of this utility model; Figure 4 This is a schematic diagram of the extended right shell section of this utility model; Figure 5 This is a schematic diagram of the extended left shell section of this utility model; Figure 6 This utility model Figure 2 Enlarged view of point A in the image.

[0014] In the diagram: 1. Left end housing; 2. Right end housing; 3. Extended left housing section; 4. Extended right housing section; 5. Connector; 6. Limiting ring; 7. Connecting groove; 8. Limiting groove; 9. Fixing plate; 10. Threaded rod; 11. Connecting plate; 12. Fixing hole; 13. Nut; 14. Locating pin; 15. Locating hole; 16. Mounting groove; 17. Sealing strip. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figures 1 to 6 This utility model provides a technical solution: a housing for a liquid level sensor, comprising a left end housing 1, a right end housing 2, an extended left end housing 3, and an extended right end housing 4. Each end of the left end housing 1 and the right end housing 2 is provided with a connector 5, and a limit ring 6 is provided at the end of the connector 5. Each extended left end housing 3 and the extended right end housing 4 has an internal connecting groove 7 and a limit groove 8. Fixing plates 9 are fixedly installed on both sides of the right end housing 2 and the extended right end housing 4. Two threaded rods 10 are fixedly installed on one side of each fixing plate 9. Connecting plates 11 are fixedly installed on both sides of the left end housing 1 and the extended left end housing 3. The connecting plates 11 have internal openings... Two fixing holes 12 are provided, and the threaded rod 10 is engaged with the fixing holes 12. A nut 13 is installed on the outer thread of the threaded rod 10. By dividing the end left housing 1, end right housing 2, extended left housing 3 and extended right housing 4 into multiple connection structures, it is easier to disassemble and replace the damaged parts. When the extended left housing 3 or extended right housing 4 is damaged and needs to be disassembled and replaced or its internal sensor circuit needs to be repaired, it is only necessary to rotate the nut 13 on the outer side of the extended left housing 3 to unscrew it from the outer thread of the threaded rod 10. Then the fixed connection between the extended left housing 3 and the extended right housing 4 can be released, and the extended left housing 3 and the extended right housing 4 can be separated for easy disassembly and replacement.

[0017] A positioning pin 14 is fixedly installed on one side of the fixing plate 9, and a positioning hole 15 is opened on one side of the connecting plate 11. The positioning pin 14 cooperates with the positioning hole 15. The positioning pin 14 and the positioning hole 15 facilitate the positioning of the end left shell 1 and the end right shell 2 or the extended left shell 3 and the extended right shell 4 during installation, thus improving the convenience of installation.

[0018] Both ends of the extended left shell 3 and the extended right shell 4 are provided with two end left shells 1 and end right shells 2; the interior of one end of the end left shell 1 and the end right shell 2 is also provided with a connecting groove 7 and a limiting groove 8, respectively, so as to increase the number of extended left shells 3 and extended right shells 4 according to installation requirements.

[0019] The connecting plate 11 has an internal mounting groove 16, and a sealing strip 17 is provided inside the mounting groove 16. The sealing strip 17 cooperates with the fixing plate 9. The mounting groove 16 and the sealing strip 17 increase the sealing performance of the connection between the end left housing 1, the end right housing 2, the extended left housing 3 and the extended right housing 4.

[0020] Connector 5 and limiting ring 6 cooperate with connecting groove 7 and limiting groove 8; by cooperating with connecting groove 7 and limiting groove 8, the left end shell 1 and right end shell 2 are connected and limited to the extended left end shell 3 and extended right end shell 4, which improves the firmness of the connection.

[0021] The middle sections of the left end housing 1, right end housing 2, extended left end housing 3, and extended right end housing 4 are hollowed out; the hollowed-out middle sections of the left end housing 1, right end housing 2, extended left end housing 3, and extended right end housing 4 facilitate the installation of the liquid level sensor and the routing of the connecting wires.

[0022] In summary, when using the housing of this liquid level sensor, simply pass the liquid level sensor through the hollowed-out holes in the middle of the two end left housing 1 and end right housing 2, and then connect the two end left housing 1 and end right housing 2 through the fixing plate 9 and connecting plate 11. During connection, the threaded rod 10 passes through the fixing hole 12, and the nut 13 is screwed on the outside of the threaded rod 10 to connect and fix the connecting plate 11 to the fixing plate 9. After connection and fixation, if it is necessary to add an extended left housing 3 and an extended right housing 4 according to installation requirements, install the extended left housing 3 and extended right housing 4 in the middle of the two end left housing 1 and end right housing 2, and connect and position them with the connecting head 5 and the limiting ring 6 through the connecting groove 7 and the limiting groove 8. Then connect the extended left housing 3 and extended right housing 4 through the fixing plate 9 and connecting plate 11. The installation is completed by fixing the extended left housing 3 and extended right housing 4 through the above fixing method. The installation and disassembly are both convenient and quick.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A housing for a liquid level sensor, comprising a left end housing (1), a right end housing (2), an extended left end housing (3), and an extended right end housing (4), characterized in that: A connector (5) is provided at one end of the left end housing (1) and the right end housing (2). A limit ring (6) is provided at the end of the connector (5). A connecting groove (7) is provided inside the extended left end housing (3) and the extended right end housing (4). A limit groove (8) is provided inside the extended left end housing (3) and the extended right end housing (4). A fixing plate (9) is fixedly installed on both sides of the right end housing (2) and the extended right end housing (4). Two threaded rods (10) are fixedly installed on one side of the fixing plate (9). A connecting plate (11) is fixedly installed on both sides of the left end housing (1) and the extended left end housing (3). Two fixing holes (12) are provided inside the connecting plate (11). The threaded rod (10) cooperates with the fixing hole (12). A nut (13) is installed on the outer thread of the threaded rod (10).

2. A housing for a liquid level sensor according to claim 1, characterised in that: A positioning pin (14) is fixedly installed on one side of the fixing plate (9), and a positioning hole (15) is opened on one side of the connecting plate (11). The positioning pin (14) cooperates with the positioning hole (15).

3. A housing for a liquid level sensor according to claim 1, wherein: Both ends of the extended left shell (3) and the extended right shell (4) are provided with two end left shells (1) and two end right shells (2).

4. A housing for a liquid level sensor according to claim 1, wherein: The connecting plate (11) has an installation groove (16) inside, and a sealing strip (17) is provided inside the installation groove (16), which cooperates with the fixing plate (9).

5. A housing for a liquid level sensor according to claim 1, wherein: The connector (5) and the limiting ring (6) are engaged with the connecting groove (7) and the limiting groove (8).

6. A housing for a liquid level sensor according to claim 1, wherein: The middle parts of the left end shell (1), the right end shell (2), the extended left shell (3), and the extended right shell (4) are hollowed out.

Images