A waterproof instrument dial

Abstract

The utility model discloses a waterproof fog instrument instrument dial, including instrument body, the instrument body outside connection is equipped with the connecting ring, the connecting ring outer wall is equipped with the air inlet pipe fixedly, the air inlet pipe top is equipped with the mounting bush fixedly, the mounting bush top is equipped with the external sleeve fixedly, the mounting bush inboard abuts the push and is equipped with, the push bottom is equipped with the slide fixedly, the slide bottom is equipped with the connecting block fixedly, the mounting bush inboard is equipped with the limit board fixedly, the limit board and connecting block between link are equipped with the tension spring, and this device sets up the structure of connecting ring, air inlet pipe, mounting bush and external sleeve, makes instrument body can be connected with external fan fast, realizes the import of dry gas.

Description

Technical Field

[0001] This utility model relates to the field of instrumentation technology, and more specifically, to a waterproof fog-proof instrument dial. Background Technology

[0002] In the actual use environment of precision instruments, especially in industrial sites with large temperature differences, outdoor monitoring stations, and high humidity environments, the inside of the instrument dial often condenses water vapor in the air due to sudden temperature changes, forming fog. This seriously affects the clarity of the instrument readings and the measurement accuracy, and may even cause operators to misread data, leading to production safety accidents.

[0003] Existing instrument dials mainly employ a sealed structure combined with built-in desiccant or an anti-fog coating. However, these solutions have significant technical limitations. After long-term use, the desiccant becomes saturated with moisture and loses its dehumidifying ability, requiring periodic disassembly and replacement. This process is cumbersome and can easily damage the instrument's sealing performance. While anti-fog coatings can delay condensation to some extent, they cannot fundamentally solve the problem of internal moisture accumulation. The coating's effectiveness decreases significantly when the ambient humidity is too high or the temperature difference is too large. Moreover, the coating is prone to wear and aging during use, leading to a gradual loss of anti-fog performance. More importantly, once fog forms inside the traditional sealed structure, there is no effective dehumidification channel, and it can only rely on natural evaporation to dissipate slowly. In sustained low-temperature or high-humidity environments, fog may remain for a long time, affecting the normal operation of the instrument. Although some instruments are equipped with vents to balance internal and external air pressure, these simple vents cannot control the gas flow or filter external moisture. Instead, they may allow humid external air to enter the interior, exacerbating the fogging phenomenon. These technical defects seriously affect the reliability and measurement accuracy of instruments in complex environments. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a waterproof fog instrument dial to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a waterproof fog instrument dial, comprising an instrument body, a connecting ring connected to the outer side of the instrument body, an air inlet pipe fixed to the outer wall of the connecting ring, an installation sleeve fixed to the top of the air inlet pipe, an outer sleeve fixed to the top of the installation sleeve, a push block abutting against the inner side of the installation sleeve, a sliding rod fixed to the bottom surface of the push block, a connecting block fixed to the bottom end of the sliding rod, a limiting plate fixed to the inner side of the installation sleeve, and a tension spring connecting the limiting plate and the connecting block.

[0006] The present invention is further configured such that a sealing ring is fixedly provided on the outer wall of the push block, and a sealing groove is provided on the inner wall of the mounting sleeve. The sealing ring abuts against the sealing groove, thereby ensuring the air intake pipe is sealed and preventing external moisture from entering the instrument.

[0007] The present invention is further configured such that a limiting block is fixedly provided on the bottom surface of the push block, and a through hole is provided on the outer wall of the limiting plate. Multiple sets of the through holes and the limiting block are provided and slidably connected, which improves the stability and sealing effect of the push block and ensures the reliability of the sealing operation.

[0008] The present invention is further configured such that the slide bar is polygonal and slidably connected to the fiberboard, which enhances the stability between the slide bar and the fiberboard and prevents displacement and wear during operation.

[0009] The present invention is further configured such that the instrument body and the connecting ring are connected by a thread, which facilitates the stable connection and disassembly of the instrument body and the connecting ring, and improves the convenience of assembly and maintenance.

[0010] The present invention is further configured such that an air outlet pipe is fixedly provided on the outer wall of the connecting ring, which ensures smooth airflow and effectively supports the introduction of gas for demisting operation.

[0011] The present invention is further provided that a sealing plug is inserted at the bottom end of the air outlet pipe, which can close the air outlet pipe when not in use to prevent external gas from entering the instrument and maintain its airtightness.

[0012] The present invention is further provided with a glass cover fixedly installed on the inner side of the connecting ring, which effectively protects the instrument panel from the influence of the external environment and ensures the display effect and service life.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a waterproof fog instrument dial, which has the following beneficial effects: 1. This device, through its structure of connecting ring, air inlet pipe, mounting sleeve, and external sleeve, enables the instrument body to be quickly connected to an external fan, facilitating the introduction of dry gas. Simultaneously, through the linkage design of push block, slide rod, connecting block, and tension spring, the air inlet pipe is automatically sealed when not in use, preventing external moisture from entering the dial. This effectively avoids water mist formation on the instrument due to temperature or humidity changes, ensuring the clarity and long-term reliability of the instrument.

[0014] 2. This device, through a structure consisting of a sealing ring, an air inlet pipe, a mounting sleeve, and an external sleeve, allows the instrument body to be quickly connected to an external fan, enabling the introduction of dry gas. Simultaneously, through the coordinated design of the push block, slide rod, connecting block, and tension spring, the air inlet pipe is automatically sealed when not in use, preventing external moisture from entering the dial. This effectively avoids water mist formation due to temperature or humidity changes, ensuring the instrument's clarity and long-term reliability.

[0015] 3. This device, through the cooperation of the sealing ring and the sealing groove, ensures a complete seal of the air intake pipe when no demisting operation is performed, preventing moisture from entering the instrument through the air intake pipe, thereby reducing water mist generation and improving the instrument's performance and service life. The limiting block on the bottom surface of the push block slides and connects with the through hole on the limiting plate, further enhancing the stability and sealing of the push block and ensuring the reliability and durability of the sealing effect. When demisting is required, by connecting the external pipe to an external fan and pulling out the sealing plug, the air pressure pushes the push block and stretches the tension spring through the slide rod and connecting block, causing the sealing ring to disengage from the sealing groove, forming an airflow channel. Dry gas is blown into the sealing ring and glass cover for ventilation and demisting, effectively solving the problem of unclear instrument readings caused by water mist and improving the ease of use and reliability of the instrument. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a waterproof fog instrument dial according to the present invention; Figure 2 This is a cross-sectional view of the connecting ring in this utility model; Figure 3 This is a cross-sectional view of the mounting sleeve and the outer sleeve in this utility model. Figure 4 This is a schematic diagram of the slide bar and push block in this utility model; Figure 5 This is a cross-sectional view of the mounting sleeve in this utility model.

[0017] In the diagram: 1. Instrument body; 2. Connecting ring; 3. Air inlet pipe; 4. Mounting sleeve; 5. External sleeve; 6. Push block; 7. Slide rod; 8. Connecting block; 9. Limiting plate; 10. Tension spring; 11. Sealing ring; 12. Sealing groove; 13. Limiting block; 14. Through hole; 15. Air outlet pipe; 16. Sealing plug; 17. Glass cover. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-5 A waterproof fog instrument panel includes an instrument body 1. A connecting ring 2 is connected to the outer side of the instrument body 1. An air inlet pipe 3 is fixed to the outer wall of the connecting ring 2. An installation sleeve 4 is fixed to the top of the air inlet pipe 3. An outer sleeve 5 is fixed to the top of the installation sleeve 4. A push block 6 is abutted against the inner side of the installation sleeve 4. A slide rod 7 is fixed to the bottom surface of the push block 6. A connecting block 8 is fixed to the bottom end of the slide rod 7. A limiting plate 9 is fixed to the inner side of the installation sleeve 4. A tension spring 10 is connected between the limiting plate 9 and the connecting block 8.

[0022] A sealing ring 11 is fixedly provided on the outer wall of the push block 6, and a sealing groove 12 is provided on the inner wall of the mounting sleeve 4, with the sealing ring 11 abutting against the sealing groove 12.

[0023] The bottom surface of the push block 6 is fixedly provided with a limiting block 13, and the outer wall of the limiting plate 9 is provided with a through hole 14. Both the through hole 14 and the limiting block 13 are provided with multiple sets and are slidably connected. The slide bar 7 is polygonal and slidably connected to the fiberboard.

[0024] The instrument body 1 and the connecting ring 2 are configured to be threaded together.

[0025] An air outlet pipe 15 is fixedly provided on the outer wall of the connecting ring 2.

[0026] A sealing plug 16 is inserted into the bottom end of the air outlet pipe 15.

[0027] A glass cover 17 is fixedly installed on the inner side of the connecting ring 2.

[0028] In this embodiment, the connecting ring 2 is screwed onto the outer wall of the instrument body 1, and the sealing plug 16 is inserted into the air outlet pipe 15. At this time, the tension spring 10 pulls the connecting block 8, and pushes the push block 6 through the slide rod 7, so that the sealing ring 11 abuts against the sealing groove 12, forming a seal on the air inlet pipe 3.

[0029] More specifically, when defogging is required, the external pipe is connected to the external fan, the sealing plug 16 is pulled out of the air outlet pipe 15, the push block 6 is pushed by the wind pressure and the tension spring 10 is stretched by the slide rod 7 and the connecting block 8, so that the sealing ring 11 is disengaged from the sealing groove 12, so that an airflow channel is formed between the push block 6 and the mounting sleeve 4, and the dry gas is blown into the sealing ring 11 and the glass cover 17 for ventilation and defogging.

[0030] In summary, when the whole equipment is in use or running: screw the connecting ring 2 onto the outer wall of the instrument body 1, insert the sealing plug 16 into the air outlet pipe 15, at this time the tension spring 10 pulls the connecting block 8, and pushes the push block 6 through the slide rod 7, so that the sealing ring 11 abuts against the sealing groove 12, forming a seal on the air inlet pipe 3.

[0031] When defogging is required, connect the external pipe to the external fan, pull out the sealing plug 16 from the air outlet pipe 15, push the push block 6 with the wind pressure, and stretch the tension spring 10 through the slide rod 7 and the connecting block 8, so that the sealing ring 11 is disengaged from the sealing groove 12, so that an airflow channel is formed between the push block 6 and the mounting sleeve 4, and dry gas is blown into the sealing ring 11 and the glass cover 17 for ventilation and defogging.

[0032] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof fog-proof instrument panel, comprising an instrument body (1), characterized in that: The instrument body (1) is connected to a connecting ring (2) on the outside. An air inlet pipe (3) is fixed on the outer wall of the connecting ring (2). An installation sleeve (4) is fixed on the top of the air inlet pipe (3). An outer sleeve (5) is fixed on the top of the installation sleeve (4). A push block (6) is abutted on the inner side of the installation sleeve (4). A slide rod (7) is fixed on the bottom surface of the push block (6). A connecting block (8) is fixed on the bottom end of the slide rod (7). A limiting plate (9) is fixed on the inner side of the installation sleeve (4). A tension spring (10) is connected between the limiting plate (9) and the connecting block (8).

2. The waterproof fog instrument dial according to claim 1, characterized in that: The outer wall of the push block (6) is fixed with a sealing ring (11), and the inner wall of the mounting sleeve (4) is provided with a sealing groove (12), and the sealing ring (11) abuts against the sealing groove (12).

3. The waterproof fog instrument dial according to claim 2, characterized in that: The bottom surface of the push block (6) is fixedly provided with a limiting block (13), and the outer wall of the limiting plate (9) is provided with a through hole (14). The through hole (14) and the limiting block (13) are provided with multiple sets and are slidably connected.

4. The waterproof fog instrument dial according to claim 3, characterized in that: The slide bar (7) is polygonal and slidably connected to the fiberboard.

5. A waterproof fog instrument dial according to claim 4, characterized in that: The instrument body (1) and the connecting ring (2) are configured to be threaded together.

6. The waterproof fog instrument dial according to claim 5, characterized in that: The outer wall of the connecting ring (2) is fixed with an air outlet pipe (15).

7. A waterproof fog instrument dial according to claim 6, characterized in that: A sealing plug (16) is inserted into the bottom end of the air outlet pipe (15).

8. A waterproof fog instrument dial according to claim 7, characterized in that: A glass cover (17) is fixedly provided on the inner side of the connecting ring (2).

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