A liquid level gauge with two standard signal outputs for warm liquid.

Abstract

This utility model relates to the field of metrology technology; specifically, it is a level gauge with dual-channel standard signal output for temperature and liquid, comprising a lower housing and an upper housing, which are mutually compatible. Both the lower and upper housings are provided with sealing strips and sealing grooves. The sealing strip on the lower housing mates with the sealing groove on the upper housing, and vice versa. A snap-fit ​​mechanism is provided between the lower and upper housings. An observation plate is provided on the upper housing. An inner cavity is provided inside both the lower and upper housings, and a thermometer and a level gauge are installed within the inner cavity. The observation plate has graduations that correspond to the thermometer and level gauge. Connecting studs and fastening nuts are provided at both ends of both the lower and upper housings, and these studs and nuts are screwed together to secure the two ends of the lower and upper housings. This effectively solves the problems of poor sealing and inaccurate measurement accuracy in existing dual-channel standard signal output level gauges for temperature and liquid.

Description

Technical Field

[0001] This utility model relates to the field of metrology technology, specifically to a liquid level gauge with two standard signal outputs for temperature-controlled liquid. Background Technology

[0002] With the acceleration of industrial automation, dual-channel standard signal output level gauges, which combine level and temperature monitoring functions, are widely used in the operation monitoring of critical equipment such as oil tanks, cooling tanks, and gearboxes. These instruments achieve simultaneous measurement of level and temperature through integrated design, providing real-time data support for industrial control systems.

[0003] However, existing temperature and liquid level gauges with dual-channel standard signal output still have significant shortcomings in structural design and performance stability. Firstly, there are deficiencies in the strength of the connection structure: most products use a plastic cap as the connection between the chamber and the outer shell, resulting in poor sealing while also serving as an external bolt fixing component. Under long-term vibration, impact, or high-load conditions, this design is prone to loosening due to insufficient cap strength, leading to instrument misalignment, seal failure, or even complete loss of measurement function. Secondly, there is the problem of thermal conduction interference: the direct contact between the chamber and the fixed components inevitably generates a thermal conduction effect, causing the temperature sensor measurement data to be affected by ambient temperature or the heat of the mounting components, resulting in dual measurement errors for both liquid level and temperature parameters, seriously affecting the accurate control and safe operation of industrial systems. Therefore, developing a new generation of temperature and liquid level gauges with reliable structural strength and high measurement accuracy has become an urgent technical challenge for the industry. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes a level gauge with dual-channel standard signal output for warm liquid, which effectively solves the problems of poor sealing and inaccurate measurement accuracy in existing level gauges with dual-channel standard signal output for warm liquid.

[0005] To achieve the above objectives, this utility model proposes the following technical solution: A dual-channel standard signal output level gauge for temperature and liquid, comprising a lower housing and an upper housing, the lower housing and the upper housing cooperating with each other, both the lower housing and the upper housing being provided with sealing strips and sealing grooves; the sealing strip on the lower housing cooperating with the sealing groove on the upper housing, and the sealing strip on the upper housing cooperating with the sealing groove on the lower housing; a snap-fit ​​mechanism is provided between the lower housing and the upper housing; an observation plate is provided on the upper housing; an inner cavity is provided inside the lower housing and the upper housing, and a thermometer and a level gauge are provided inside the inner cavity; the observation plate is provided with scales that cooperate with the thermometer and the level gauge; connecting studs and fastening nuts are provided at both ends of the lower housing and the upper housing, the connecting studs and fastening nuts being screwed together, and the connecting studs and fastening nuts fixing the two ends of the lower housing and the upper housing.

[0006] Furthermore: the latching mechanism includes a movable slide rod slidably connected inside the lower housing, a telescopic latch block slidably connected inside the lower housing, and the telescopic latch block and the movable slide rod being fixedly connected via a cylindrical shaft; a fixed sleeve slidably connected to the cylindrical shaft is fixedly connected inside the lower housing, a return spring is sleeved on the cylindrical shaft, one end of the return spring is fixedly connected to the fixed sleeve, and the other end of the return spring is fixedly connected to the telescopic latch block; a fixed latch block that cooperates with the telescopic latch block is fixedly connected on the upper housing.

[0007] Furthermore, the sliding mating surfaces of the telescopic block and the fixed block are inclined planes with the same angle.

[0008] Furthermore: the latching mechanism is located in the middle of the lower housing and the upper housing.

[0009] Furthermore, each connecting stud is screwed with a locating nut.

[0010] Furthermore, the observation panel is made of a transparent material.

[0011] Furthermore, the connecting stud is made of titanium alloy.

[0012] Compared with the prior art, the gain effect of this utility model is as follows:

[0013] 1. The locking mechanism secures the lower and upper housings in the middle, while the connecting studs and fastening nuts secure the lower and upper housings on both sides. In addition, the sealing strip and sealing groove greatly enhance the sealing of the inner cavity, thus effectively ensuring the airtightness of the inner cavity and facilitating the installation of measuring instruments in the inner cavity.

[0014] 2. The positioning nut allows for secondary reinforcement and fixation after the connecting stud is connected to the fixing element, improving the fixation strength; it also avoids the problem of heat transfer due to the contact between the cavity shell and the element; the design of the titanium alloy connecting stud solves the problem of poor accuracy caused by heat conduction. Attached Figure Description

[0015] Figure 1 This is the front view of the present utility model.

[0016] Figure 2 This is a perspective view of the present utility model.

[0017] Figure 3 This is a partial cross-sectional view of the present invention.

[0018] Figure 4 This is a perspective view of the buckle mechanism of this utility model.

[0019] Figure 5 This is a partial enlarged view of the present invention.

[0020] In the diagram: 1. Lower housing, 2. Upper housing, 4. Connecting stud, 5. Fastening nut, 6. Positioning nut, 7. Observation plate, 8. Movable slide rod, 9. Fixed slide sleeve, 10. Return spring, 11. Telescopic block, 12. Fixed block. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0022] A liquid level gauge with dual standard signal output for temperature and liquid levels includes a lower housing 1 and an upper housing 2, which are mutually compatible. Both the lower housing 1 and the upper housing 2 are provided with sealing strips and sealing grooves. The sealing strip on the lower housing 1 mates with the sealing groove on the upper housing 2, and the sealing strip on the upper housing 2 mates with the sealing groove on the lower housing 1. A snap-fit ​​mechanism is provided between the lower housing 1 and the upper housing 2. An observation plate 7 is provided on the upper housing 2. An inner cavity is provided inside the lower housing 1 and the upper housing 2, and a thermometer and a liquid level gauge are installed within the inner cavity. The observation plate 7 has graduations that correspond to the thermometer and the liquid level gauge. Connecting studs 4 and fastening nuts 5 are provided at both ends of the lower housing 1 and the upper housing 2, and the connecting studs 4 and fastening nuts 5 are screwed together to secure both ends of the lower housing 1 and the upper housing 2.

[0023] The latching mechanism includes a movable slide rod 8 slidably connected inside the lower housing 1, a telescopic latch 11 slidably connected inside the lower housing 1, and the telescopic latch 11 and the movable slide rod 8 being fixedly connected via a cylindrical shaft; a fixed sleeve 9 slidably connected to the cylindrical shaft is fixedly connected inside the lower housing 1, and a return spring 10 is sleeved on the cylindrical shaft, with one end of the return spring 10 fixedly connected to the fixed sleeve 9 and the other end of the return spring 10 fixedly connected to the telescopic latch 11; a fixed latch 12 that cooperates with the telescopic latch 11 is fixedly connected to the upper housing 2; the sliding mating surfaces of the telescopic latch 11 and the fixed latch 12 are inclined planes with the same angle; the latching mechanism is located in the middle of the lower housing 1 and the upper housing 2.

[0024] The observation board 7 is made of transparent material.

[0025] like Figure 1 , 2As shown in 3, 4 and 5: When installing this utility model, first install the thermometer and level gauge into the appropriate position in the inner cavity; then cover the lower housing 1 with the upper housing 2. At this time, the sealing strip and sealing groove ensure the airtightness of the inner cavity, and the buckling mechanism cooperates with each other to fix the middle of the lower housing 1 and the upper housing 2. During this process, the fixing block 12 slides downward in the lower housing 1. During the downward sliding of the fixing block 12, the fixing block 12 contacts the telescopic block 11. The telescopic block 11 slides in the lower housing 1. When the upper housing 2 contacts the contact surface of the lower housing 1, the telescopic block 11 rebounds under the action of the return spring 10. At this time, the telescopic block 11 and the fixing block 12 are engaged. When the latching mechanism needs to be opened, first slide the movable slide bar 8. The movable slide bar 8 will drive the telescopic latch 11 to slide. At this time, the return spring 10 is compressed. After the telescopic latch 11 moves a certain distance, the telescopic latch 11 and the fixed latch 12 engage and disengage, thereby releasing the engagement. After completing the above operation, the lower housing 1 and the upper housing 2 can be fixed in a suitable position by connecting studs 4. After the connecting studs 4 are fixed to the fixing parts, the connecting studs 4 are usually screwed to the fixing nuts on the fixing parts. Then, the lower housing 1 and the upper housing 2 can be fixed to the connecting studs 4 by tightening the nuts 5. This effectively solves the problem of poor sealing of the existing liquid level gauge with two standard signal outputs for temperature liquid. Example

[0026] The connecting stud 4 is made of titanium alloy.

[0027] Each connecting stud 4 is screwed with a positioning nut 6.

[0028] like Figure 1 As shown: Based on Embodiment 1, the connecting stud 4 and the fixing nut are fixed a second time by using the positioning nut 6; this can effectively prevent the lower housing 1 from contacting the fixing part; the titanium alloy metal setting greatly reduces heat conduction; and solves the problem of poor accuracy caused by heat conduction.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A liquid level gauge with dual-channel standard signal output for temperature-controlled liquids, characterized in that: It includes a lower housing (1) and an upper housing (2), which are mutually fitted. Both the lower housing (1) and the upper housing (2) are provided with sealing strips and sealing grooves. The sealing strip on the lower housing (1) fits into the sealing groove on the upper housing (2), and the sealing strip on the upper housing (2) fits into the sealing groove on the lower housing (1). A snap-fit ​​mechanism is provided between the lower housing (1) and the upper housing (2). An observation plate is provided on the upper housing (2). 7) The lower shell (1) and the upper shell (2) are provided with an inner cavity, and a thermometer and a level gauge are provided in the inner cavity; the observation plate (7) is provided with a scale that matches the thermometer and the level gauge; both ends of the lower shell (1) and the upper shell (2) are provided with a connecting stud (4) and a fastening nut (5), the connecting stud (4) and the fastening nut (5) are screwed together, and the connecting stud (4) and the fastening nut (5) fix the two ends of the lower shell (1) and the upper shell (2).

2. The liquid level gauge with dual-channel standard signal output for temperature and liquid levels according to claim 1, characterized in that: The latching mechanism includes a movable slide rod (8) slidably connected inside the lower housing (1), a telescopic latch (11) slidably connected inside the lower housing (1), and the telescopic latch (11) and the movable slide rod (8) being fixedly connected by a cylindrical shaft; a fixed sleeve (9) slidably connected to the cylindrical shaft is fixedly connected inside the lower housing (1), and a return spring (10) is sleeved on the cylindrical shaft, with one end of the return spring (10) fixedly connected to the fixed sleeve (9) and the other end of the return spring (10) fixedly connected to the telescopic latch (11); and a fixed latch (12) that cooperates with the telescopic latch (11) is fixedly connected on the upper housing (2).

3. The liquid level gauge with dual standard signal output for temperature and liquid levels according to claim 2, characterized in that: The sliding mating surfaces of the telescopic block (11) and the fixed block (12) are inclined planes with the same angle.

4. The liquid level gauge with dual-channel standard signal output for temperature and liquid levels according to claim 1, characterized in that: The latching mechanism is located in the middle of the lower housing (1) and the upper housing (2).

5. The liquid level gauge with dual standard signal output for temperature and liquid levels according to claim 1, characterized in that: Each connecting stud (4) is screwed with a positioning nut (6).

6. The liquid level gauge with dual standard signal output for temperature and liquid levels according to claim 1, characterized in that: The observation board (7) is made of transparent material.

7. The liquid level gauge with dual standard signal output for temperature and liquid levels according to claim 1, characterized in that: The connecting stud (4) is made of titanium alloy.

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