Novel waterproof liquid level and liquid temperature meter head

Abstract

The utility model provides a novel waterproof liquid level and liquid temperature meter head, and relates to the technical field of liquid level display equipment. The device comprises a main shell, and a circuit board is limited in the main shell; the glass sealing gasket is placed in the observation opening of the main shell and is attached to the display side of the circuit board; the sealing gland is fixedly connected to the observation opening, and the sealing gland, the edge of the observation opening and the edge of the glass sealing gasket are arranged in a sealed mode; the liquid level and liquid temperature sensor connector is installed on the side wall of the main shell, the liquid level and liquid temperature sensor connector and the main shell are arranged in a sealed mode, and the liquid level and liquid temperature sensor connector is electrically connected with the circuit board. As a whole, the overall waterproof performance of the liquid level and liquid temperature meter head in a severe environment can be effectively improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level display equipment, in particular to a novel waterproof liquid level and temperature meter head. Background Art

[0002] Liquid level measurement is one of the four most important working parameters in industrial production, along with temperature, pressure, and flow. However, existing liquid level and temperature gauges are not waterproof enough during use. Water easily seeps into the gauges during inclement weather such as continuous heavy rain, significantly reducing their service life.

[0003] Therefore, there is an urgent need for a new waterproof liquid level and temperature meter head that can effectively improve the waterproof performance. Utility Model Content

[0004] The purpose of this utility model is to provide a novel waterproof liquid level and temperature meter head, which solves the technical problem of water leakage in inclement weather in the prior art. The various technical effects produced by the preferred technical solution among the various technical solutions provided by this utility model are described in detail below.

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

[0006] The utility model provides a novel waterproof liquid level and temperature gauge head, comprising:

[0007] a main housing, wherein the circuit board is positioned within the main housing;

[0008] a glass sealing gasket, the glass sealing gasket being placed in the viewing port of the main housing and being attached to the display side of the circuit board;

[0009] A sealing gland, which is fixedly connected to the observation port and is sealed with the edge of the observation port and the edge of the glass sealing gasket respectively;

[0010] A liquid level and liquid temperature sensor connector is mounted on the side wall of the main housing and is sealed with the main housing. The liquid level and liquid temperature sensor connector is electrically connected to the circuit board.

[0011] Preferably, it also includes:

[0012] A first sealing ring is installed at the edge of the observation port and is located between the main shell and the sealing cover.

[0013] Preferably, it also includes:

[0014] A second sealing ring is installed on the sealing gland and is located between the sealing gland and the glass sealing gasket.

[0015] Preferably, it also includes:

[0016] A first annular groove is provided at the edge of the observation port, and the first sealing ring is placed in the first annular groove.

[0017] Preferably, it also includes:

[0018] A second annular groove is provided on a side of the sealing gland close to the main housing, and the second sealing ring is placed in the second annular groove.

[0019] Preferably, it also includes:

[0020] A spacer is installed in the main shell and is arranged in contact with the glass sealing gasket. The circuit board is installed on a side of the spacer away from the glass sealing gasket.

[0021] Preferably, it also includes:

[0022] An annular extension is formed integrally with the main shell and is located on the side wall of the main shell. The liquid level and temperature sensor connector is installed in the annular extension.

[0023] Preferably, it also includes:

[0024] A rain shield ring is installed between the liquid level and temperature sensor connector and the annular extension.

[0025] In the technical solution provided by this utility model, the circuit board within the main housing is effectively protected by a glass gasket. The sealing arrangement between the sealing gland and the main housing, and between the sealing gland and the glass gasket, effectively prevents rainwater from seeping into the main housing through the observation port. Furthermore, a seal is provided at the connection between the level and temperature sensor connector and the main housing, further ensuring the overall sealing and waterproofing of the meter head. Overall, this application can effectively improve the overall waterproof performance of the level and temperature meter head in harsh environments, as well as extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic sectional view of the utility model in the main viewing direction.

[0029] In the figure, 1 is the main shell; 2 is the sealing cover; 3 is the glass sealing gasket; 4 is the liquid level and temperature sensor connector; 5 is the cable connector; 6 is the first sealing ring; 7 is the first annular groove; 8 is the second annular groove; 9 is the second sealing ring; 10 is the circuit board; 11 is the spacer; 12 is the rain shield ring; 13 is the annular extension. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] refer to Figure 1-2 The specific embodiment of the utility model provides a new waterproof liquid level and temperature gauge head, including:

[0032] The main housing 1 and the circuit board 10 are limited in the main housing 1;

[0033] A glass sealing gasket 3 is placed in the viewing port of the main housing 1 and is attached to the display side of the circuit board 10;

[0034] The sealing gland 2 is fixedly connected to the observation port by screws and is sealed with the edge of the observation port and the edge of the glass sealing gasket 3 respectively;

[0035] The liquid level and temperature sensor connector 4 is mounted on the side wall of the main housing 1 and is sealed with the main housing 1 . The liquid level and temperature sensor connector 4 is electrically connected to the circuit board 10 .

[0036] Liquid level measurement is the most important working parameter in industrial production. It is one of the four major industrial working parameters along with temperature, pressure and flow. However, the existing liquid level and temperature meter heads have poor waterproofing during use. In severe weather such as continuous heavy rain, water easily seeps into the interior, which greatly reduces the service life of the meter head. In the present application, the circuit board 10 in the main housing 1 is effectively protected by the glass sealing gasket 3. The sealing arrangement between the sealing cover 2 and the main housing 1, and between the sealing cover 2 and the glass sealing gasket 3 effectively prevents rainwater from seeping into the main housing 1 through the observation port. In addition, the connection between the liquid level and temperature sensor connector 4 and the main housing 1 is sealed to further ensure the overall sealing and waterproofing effect of the meter head. Overall, the present application can effectively improve the overall waterproof performance of the liquid level and temperature meter head in harsh environments, as well as increase its service life.

[0037] Further optimization plans also include:

[0038] The first sealing ring 6 is installed at the edge of the observation port and is located between the main shell 1 and the sealing cover 2.

[0039] The first sealing ring 6 is installed between the edge of the main housing 1 and the sealing gland 2 to prevent rainwater from seeping into the main housing 1 from the edge of the sealing gland 2.

[0040] Further optimization plans also include:

[0041] The second sealing ring 9 is installed on the sealing cover 2 and is located between the sealing cover 2 and the glass sealing gasket 3.

[0042] The second sealing ring 9 is installed between the sealing cover 2 and the glass sealing gasket 3 to prevent rainwater from seeping into the main housing 1 from the edge of the glass sealing gasket 3.

[0043] Further optimization plans also include:

[0044] The first annular groove 7 is opened at the edge of the observation port, and the first sealing ring 6 is placed in the first annular groove 7 .

[0045] The main function of the first annular groove 7 is to install the first sealing ring 6 to ensure the sealing effect of the first sealing ring 6.

[0046] Further optimization plans also include:

[0047] The second annular groove 8 is opened on a side of the sealing cover 2 close to the main housing 1 , and the second sealing ring 9 is placed in the second annular groove 8 .

[0048] The main function of the second annular groove 8 is to install the second sealing ring 9 to ensure the sealing effect of the second sealing ring 9.

[0049] Further optimization plans also include:

[0050] The spacer 11 is installed in the main housing 1 and is arranged in contact with the glass sealing gasket 3 . The circuit board 10 is installed on a side of the spacer 11 away from the glass sealing gasket 3 .

[0051] The main function of the spacer 11 is to assist in the installation of the circuit board 10. The indicator lights and the display screen on the circuit board 10 pass through the spacer 11, and the data can be easily observed through the glass sealing gasket 3.

[0052] Further optimization plans also include:

[0053] The annular extension 13 is integrally formed with the main housing 1 and is located on the side wall of the main housing 1 . The liquid level and temperature sensor connector 4 is installed in the annular extension 13 .

[0054] The annular extension 13 can effectively reduce the infiltration of rainwater through the connection between the liquid level and temperature sensor connector 4 and the main housing 1 .

[0055] Further optimization plans also include:

[0056] The rain shield ring 12 is installed between the liquid level and temperature sensor connector 4 and the annular extension 13.

[0057] An annular protrusion is provided at the end of the liquid level and temperature sensor connector 4, and a groove corresponding to the annular protrusion is provided on the inner side of the rain shield ring 12. The cooperation between the annular protrusion and the groove helps to improve the waterproof infiltration effect.

[0058] According to a further optimized solution, the cable connector 5 is fixedly connected to the side wall of the main housing 1 by screws.

[0059] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used herein to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are intended only to facilitate the description of this application and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] It should also be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A new type of waterproof liquid level and temperature gauge, characterized by: include: A main housing (1), wherein the circuit board (10) is positioned within the main housing (1); A glass sealing gasket (3), the glass sealing gasket (3) being placed in the observation port of the main housing (1) and being attached to the display side of the circuit board (10); A sealing gland (2), the sealing gland (2) being fixedly connected to the observation port and being sealed with the edge of the observation port and the edge of the glass sealing gasket (3); A liquid level and liquid temperature sensor connector (4), the liquid level and liquid temperature sensor connector (4) is mounted on the side wall of the main housing (1) and is sealed with the main housing (1), and the liquid level and liquid temperature sensor connector (4) is electrically connected to the circuit board (10).

2. The novel waterproof liquid level and temperature gauge according to claim 1 is characterized in that: Also includes: A first sealing ring (6) is installed at the edge of the observation port and is located between the main shell (1) and the sealing gland (2).

3. The novel waterproof liquid level and temperature gauge according to claim 1 is characterized in that: Also includes: A second sealing ring (9) is installed on the sealing gland (2) and is located between the sealing gland (2) and the glass sealing gasket (3).

4. The novel waterproof liquid level and temperature gauge according to claim 2 is characterized in that: Also includes: A first annular groove (7) is provided at the edge of the observation port, and the first sealing ring (6) is placed in the first annular groove (7).

5. The novel waterproof liquid level and temperature gauge according to claim 3 is characterized in that: Also includes: A second annular groove (8) is provided on a side of the sealing gland (2) close to the main housing (1), and the second sealing ring (9) is placed in the second annular groove (8).

6. The novel waterproof liquid level and temperature gauge according to claim 1 is characterized in that: Also includes: A spacer (11) is installed in the main housing (1) and is arranged in close contact with the glass sealing gasket (3); the circuit board (10) is installed on a side of the spacer (11) away from the glass sealing gasket (3).

7. The novel waterproof liquid level and temperature gauge according to claim 1 is characterized in that: Also includes: An annular extension (13) is formed integrally with the main shell (1) and is located on the side wall of the main shell (1); the liquid level and temperature sensor connector (4) is installed in the annular extension (13).

8. The novel waterproof liquid level and temperature gauge according to claim 7 is characterized in that: Also includes: A rain shield ring (12) is installed between the liquid level and liquid temperature sensor connector (4) and the annular extension (13).

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