Heated embedded defogging glass sight glass

By incorporating a built-in heating element and an anti-fog composite film into the glass sight glass design, the problems of fog affecting the clarity of observation and inconvenience in disassembly and assembly are solved, achieving efficient defogging effect and simplified maintenance process.

CN224596630UActive Publication Date: 2026-08-04XINXIANG CHEM FIBER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG CHEM FIBER
Filing Date
2025-09-18
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing glass sight glasses are susceptible to fogging due to changes in ambient temperature and humidity, which reduces the clarity of observation. They are also inconvenient to disassemble and install and have high maintenance costs.

Method used

The composite sight glass body with an embedded heating element is combined with an anti-reflective and anti-fog composite film, along with a pop-up component that is easy to install and remove and a multi-seal structure, to ensure clear observation and simplify the maintenance process.

Benefits of technology

It achieves clear observation even in the presence of fog and shortens maintenance time through disassembly without additional tools, thereby improving maintenance efficiency and equipment reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a heating element-embedded defogging glass sight glass, relating to the field of glass defogging technology. The utility model includes a mounting base; the front of the mounting base has a mounting opening, inside which a composite sight glass body is placed; a clamping frame is fixedly connected to the front of the mounting base, and a pop-out component is provided on the back of the mounting base; the pop-out component includes an outer frame, inside which multiple evenly distributed mounting holes are formed along the circumference, and each mounting hole has a movably fitted push rod; a sealing plate is fixedly connected to the side of the outer frame facing away from the mounting base, and a push-out spring is movably fitted inside the mounting holes; the composite sight glass body includes two transparent sight glass panes, with a heating element sandwiched between the two transparent sight glass panes. This utility model, by combining a composite sight glass body with an embedded heating element and an anti-fogging composite film, can quickly remove fog; furthermore, the pop-out component allows for quick assembly and disassembly of the composite sight glass body, thereby improving maintenance efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of glass defogging technology, and in particular relates to a heating-body embedded defogging glass sight glass. Background Technology

[0002] A sight glass is a functional observation component made of transparent glass, typically installed at the observation port of equipment, containers, pipes, or devices. Its purpose is to provide operators with a clear visual channel while ensuring the equipment's airtightness or structural integrity, allowing for real-time observation of the equipment's internal operating conditions, material status, reaction processes, or fluid flow. However, in actual use, existing glass sight glasses are susceptible to fogging due to changes in ambient temperature and humidity. When there is a temperature difference between the two sides of the sight glass, water vapor in the air will condense on the glass surface to form tiny water droplets, causing the mirror to become blurry and severely obstructing the line of sight. At the same time, traditional glass sight glasses are mostly fixed by screws and clips, which makes disassembly inconvenient. Furthermore, improper force during disassembly and assembly can damage the glass body or sealing structure, increasing maintenance costs and workload.

[0003] To address these issues, we have provided a heating element-embedded defogged glass sight glass. Utility Model Content

[0004] The purpose of this invention is to provide a defogging glass sight glass with an embedded heating element. By combining a composite sight glass body with an embedded heating element and an anti-fogging composite film, and equipped with a pop-out component for easy and quick disassembly and assembly, as well as a multi-seal structure, the invention solves the problems of existing glass sight glasses being easily affected by fogging and having cumbersome disassembly and maintenance.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a heating body embedded defogging glass sight glass, including a mounting base; the front of the mounting base has an installation opening, the inside of which is placed a composite sight glass body, the front of the mounting base is fixedly connected to a clamping frame for fixing the composite sight glass body, and the back of the mounting base is provided with a pop-out component for ejecting the composite sight glass body. The pop-out component includes an outer frame mounted on the back of the mounting base. The inner side of the outer frame has multiple evenly distributed mounting holes along the circumference. Each mounting hole has a push rod movably fitted inside it. A sealing plate is fixedly connected to the side of the outer frame facing away from the mounting base. An ejection spring is movably fitted inside the mounting hole, and the ejection spring is located between the push rod and the sealing plate. The ends of the multiple push rods facing away from the ejection spring are fixedly connected to a top plate for ejecting the composite sight glass body.

[0006] The present invention is further configured such that the composite sight glass body includes two transparent sight glass, and a heating element is sandwiched between the two transparent sight glass.

[0007] The present invention is further provided that the outer periphery of the two transparent viewing mirrors is fixedly connected with sealing strips.

[0008] The present invention is further provided that the front of the mounting base has a cable tray for placing the heating element wires, and the inside of the cable tray is filled with a sealing plug.

[0009] The present invention is further configured such that a second sealing gasket is sandwiched between the clamping frame and the composite sight glass body, and a first sealing gasket is sandwiched on the side of the composite sight glass body facing the inner wall of the mounting opening.

[0010] The present invention is further configured such that a fixing plate is fixedly connected to the outside of the outer frame, and the fixing plate is fixedly connected to the back of the outer frame by screws.

[0011] The present invention is further configured such that the heating element is a transparent conductive film or a heating wire, and the outer surface of the transparent viewing glass is coated with a composite film for enhancing transparency and preventing fogging. The composite film is formed by alternating layers of silicon dioxide bottom layer and magnesium fluoride surface layer.

[0012] The present invention is further configured such that the shape of the composite viewing mirror body is selected from rectangle, circle or polygon, and its outer periphery contour matches the contour of the mounting port, the inner shape of the clamping frame and the adaptation structure of the first sealing gasket.

[0013] This utility model has the following beneficial effects: 1. This utility model, through the cooperation of the ejection spring, ejection rod and top plate of the pop-out component, allows the composite sight glass to be ejected without the need for additional tools when disassembling it, which not only protects the integrity of the composite sight glass but also shortens the disassembly time and improves maintenance efficiency.

[0014] 2. This utility model embeds the heating element between two transparent viewing glasses and combines it with a composite film on the outside of the transparent viewing glasses. This allows the heating element to quickly heat and remove fog, while the composite film enhances light transmittance, reduces reflection, and improves anti-fogging performance, thus ensuring the continuity and clarity of observation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2This is a schematic diagram of the overall exploded structure of this utility model.

[0018] Figure 3 This is an exploded structural diagram of the composite sight glass body of this utility model.

[0019] Figure 4 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 5 This is an exploded view of the pop-out component of this utility model.

[0021] Figure 6 This is a cross-sectional view of the pop-up component of this utility model.

[0022] Figure 7 This is a schematic diagram of the state of a circular composite sight mirror.

[0023] The attached diagram lists the components represented by each number as follows: 100. Mounting base; 101. Mounting port; 102. Cable tray port; 103. First sealing gasket; 104. Sealing plug; 200. Composite sight glass body; 201. Transparent sight glass; 202. Heating element; 203. Edge sealing strip; 300. Pressing frame; 301. Second sealing gasket; 400. Pop-out assembly; 401. Outer frame; 402. Mounting hole; 403. Push rod; 404. Push-out spring; 405. Sealing plate; 406. Top plate; 407. Fixing plate. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example 1

[0028] Please see Figures 1 to 6 This utility model is a heating body embedded defogger glass sight glass, including a mounting base 100; the front of the mounting base 100 has a mounting opening 101, and a composite sight glass body 200 is placed inside the mounting opening 101. A clamping frame 300 for fixing the composite sight glass body 200 is fixedly connected to the front of the mounting base 100. A pop-out component 400 for ejecting the composite sight glass body 200 is provided on the back of the mounting base 100. The mounting base 100 provides stable support for the overall structure, the mounting opening 101 provides installation space for the composite sight glass body 200, the clamping frame 300 can firmly fix the composite sight glass body 200 in the mounting opening 101 to prevent it from loosening, and the pop-out component 400 can easily eject the composite sight glass body 200 when it needs to be replaced or repaired, improving the ease of disassembly and assembly. The pop-out component 400 includes an outer frame 401 mounted on the back of the mounting base 100. The inner side of the outer frame 401 has a plurality of evenly distributed mounting holes 402 along its circumference. Each mounting hole 402 has a push rod 403 movably fitted inside it. A sealing plate 405 is fixedly connected to the side of the outer frame 401 facing away from the mounting base 100. An ejection spring 404 is movably fitted inside each mounting hole 402, located between the push rod 403 and the sealing plate 405. The ends of the push rods 403 facing away from the ejection spring 404 are fixedly connected to a device for ejection. The top plate 406 and outer frame 401 of the composite sight glass body 200 provide mounting carriers for other components of the pop-up assembly 400. The mounting hole 402 guides the push rod 403 to ensure stable movement of the push rod 403. The ejection spring 404 provides elastic force when the clamping frame 300 is released. The composite sight glass body 200 is ejected by the push rod 403 and the top plate 406 without the need for additional tools, saving time and effort. The sealing plate 405 prevents the ejection spring 404 and the push rod 403 from falling out of the mounting hole 402, ensuring the structural integrity of the pop-up assembly 400.

[0029] Specifically, the front of the mounting base 100 has a cable tray 102 for placing the wires of the heating element 202. The inside of the cable tray 102 is filled with a sealing plug 104. The cable tray 102 facilitates the orderly arrangement of the wires of the heating element 202, avoiding messy wires that may affect the overall structure or cause safety hazards. The sealing plug 104 can seal the cable tray 102 to prevent dust, moisture and other substances from entering the inside of the mounting base 100, protecting the wires and other components from damage, and improving the safety and service life of the equipment. A second sealing gasket 301 is sandwiched between the clamping frame 300 and the composite sight glass body 200, and a first sealing gasket 103 is sandwiched on the side of the composite sight glass body 200 facing the inner wall of the mounting port 101. The first sealing gasket 103 and the second sealing gasket 301 can enhance the sealing between the composite sight glass body 200 and the mounting port 101 and the clamping frame 300, effectively preventing liquids, gases, etc. from leaking from the gaps. It is suitable for occasions with sealing requirements and improves the reliability of the equipment. The outer frame 401 is externally fixedly connected to a fixing plate 407, and the fixing plate 407 is fixedly connected to the back of the outer frame 401 by screws.

[0030] Furthermore, the shape of the composite viewing mirror 200 is selected from rectangle, circle or polygon, and its outer periphery contour matches the contour of the mounting port 101, the inner shape of the clamping frame 300 and the adaptation structure of the first sealing gasket 103.

[0031] The operation process of this embodiment is as follows: When it is necessary to disassemble the composite sight mirror 200, first unscrew the screws that fix the clamping frame 300 and the mounting base 100. At this time, the constraint force of the clamping frame 300 on the composite sight mirror 200 disappears. Under its own elastic force, the ejector spring 404 pushes the ejector rod 403 to move closer to the composite sight mirror 200. The ejector rod 403 drives the top plate 406 to move synchronously. The top plate 406 contacts the back of the composite sight mirror 200 and applies a pushing force, pushing the composite sight mirror 200 out of the mounting port 101 a certain distance. Thus, the composite sight mirror 200 can be easily disassembled. No additional tools such as pry bars are needed during the disassembly process, which not only protects the integrity of the composite sight mirror 200, but also greatly shortens the disassembly time and improves maintenance efficiency. Example 2

[0032] Please see Figure 3 Based on the first specific embodiment, the composite viewing mirror body 200 includes two transparent viewing mirror glasses 201, with a heating element 202 sandwiched between the two transparent viewing mirror glasses 201. The two transparent viewing mirror glasses 201 provide a clear field of view for observation. The heating element 202 is embedded between the two and can directly heat the transparent viewing mirror glasses 201, which can quickly remove the fog on the glass surface and ensure the continuity and clarity of observation. Two transparent viewing glass 201 are fixedly connected to the outer periphery with sealing strips 203. The sealing strips 203 can firmly connect the two transparent viewing glass 201 together, and at the same time seal the gap between them to prevent moisture, dust and other substances from entering and affecting the normal operation of the heating element 202, and extend the service life of the composite viewing glass 200.

[0033] Specifically, the heating element 202 is a transparent conductive film or heating wire, and the outer surface of the transparent viewing glass 201 is coated with a composite film for enhancing light transmission and preventing fogging. The composite film is composed of alternating layers of silicon dioxide and magnesium fluoride. The use of a transparent conductive film for the heating element 202 does not affect the light transmittance of the transparent viewing glass 201, ensuring the observation effect. The composite film on the outside of the transparent viewing glass 201, through the alternating layers of silicon dioxide and magnesium fluoride, can effectively increase light transmittance and reduce reflection, while also having good anti-fogging performance, further improving the clarity of observation. In addition, the composite film can enhance the wear resistance and corrosion resistance of the glass, adapting to different working environments.

[0034] The operation process of this embodiment is as follows: When fog forms on the surface of the composite sight glass 200, the power supply of the heating element 202 is turned on. The heating element 202, made of transparent conductive film material, quickly generates heat. Since it is embedded between the two transparent sight glass 201, the heat can be directly transferred to the glass on both sides, causing the temperature of the transparent sight glass 201 to rise rapidly. The fog on the surface evaporates and dissipates due to the heat. At the same time, the composite film on the outside of the transparent sight glass 201 plays a synergistic role. Its anti-fog performance reduces the possibility of fog formation. Combined with the heating effect of the heating element 202, the defogging effect is improved.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A heating element embedded defogging glass sight glass, comprising a mounting base (100); characterized in that: The mounting base (100) has a mounting opening (101) on its front side, and a composite viewing mirror (200) is placed inside the mounting opening (101). A clamping frame (300) for fixing the composite viewing mirror (200) is fixedly connected to the front side of the mounting base (100), and a pop-out component (400) for ejecting the composite viewing mirror (200) is provided on the back side of the mounting base (100). The pop-out assembly (400) includes an outer frame (401) mounted on the back of the mounting base (100). The outer frame (401) has a plurality of evenly distributed mounting holes (402) in the circumferential direction. Each of the mounting holes (402) is movably fitted with a push rod (403). A sealing plate (405) is fixedly connected to the side of the outer frame (401) away from the mounting base (100). An ejection spring (404) is movably fitted inside the mounting hole (402), and the ejection spring (404) is located between the push rod (403) and the sealing plate (405). A top plate (406) for ejecting the composite sight glass body (200) is fixedly connected to the end of the plurality of push rods (403) away from the ejection spring (404).

2. The heat-generating body-in-embedded defogging glass sight mirror according to claim 1, characterized by, The composite sight glass body (200) includes two transparent sight glass (201), with a heating element (202) sandwiched between the two transparent sight glass (201).

3. The heat-generating body-in-glass defroster of claim 2 wherein, The outer periphery of the two transparent viewing glass (201) is fixedly connected with sealing strips (203).

4. The heat-generating body-in-glass defroster of claim 1 wherein, The mounting base (100) has a cable tray (102) on the front for placing the wires of the heating element (202), and the inside of the cable tray (102) is filled with a sealing plug (104).

5. The heat-generating body-in-glass defroster of claim 1 wherein, A second sealing gasket (301) is sandwiched between the clamping frame (300) and the composite sight glass body (200), and a first sealing gasket (103) is sandwiched on the side of the composite sight glass body (200) facing the inner wall of the mounting port (101).

6. The heat-generating body-in-glass defroster of claim 1 wherein, The outer frame (401) is fixedly connected to a fixing plate (407), and the fixing plate (407) is fixedly connected to the back of the outer frame (401) by screws.

7. The heat-generating body-in-glass defroster of claim 2 wherein, The heating element (202) is a transparent conductive film or a heating wire. The outer surface of the transparent viewing glass (201) is coated with a composite film for enhancing transparency and preventing fogging. The composite film is formed by alternating layers of silicon dioxide bottom layer and magnesium fluoride surface layer.

8. The heat-generating body-in-glass defroster of claim 1 wherein, The shape of the composite viewing mirror body (200) is selected from rectangle, circle or polygon, and its outer periphery is matched with the outline of the mounting port (101), the inner shape of the clamping frame (300) and the adaptation structure of the first sealing gasket (103).