Vacuum observation window of graphite horizontal heating furnace

Abstract

The utility model discloses a vacuum observation window of a graphite horizontal heating furnace, which comprises a horizontal heating furnace, an observation window assembly is arranged on the side wall of the horizontal heating furnace, the observation window assembly comprises an observation port fixed on the side wall of the horizontal heating furnace, and transparent glass is arranged on the end wall of the cavity of the observation port. A storage bin is arranged on the side wall of the observation opening located at the transparent glass, one end of the storage bin is rotationally connected with a sealing plate through a torsion spring, an air cylinder is arranged at the other end of the storage bin, a telescopic rod of the air cylinder penetrates through the storage bin and is provided with an installation bottom piece, cleaning cotton is arranged in the installation bottom piece, and sliding blocks are arranged on the two side walls of the installation bottom piece; a guide rail matched with the sliding block is fixedly arranged in a cavity of the storage bin. According to the utility model, through the innovatively designed observation window assembly, not only can the real-time observation function be conveniently realized, but also automatic cleaning can be realized in a high-temperature vacuum environment, and long-term stable operation is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of horizontal heating furnaces, in particular to a vacuum observation window of a graphite horizontal heating furnace. Background Art

[0002] Graphite horizontal heating furnaces are widely used in industrial fields such as high-temperature sintering and heat treatment, especially in situations that require precise temperature control and a vacuum environment. Since the internal working environment of the heating furnace is usually high temperature and in a vacuum state, real-time monitoring of the internal state during operation becomes an important technical challenge. Although traditional observation windows can meet certain visual observation requirements, in high temperature and vacuum environments, the observation windows are easily contaminated by material dust, affecting the observation effect.

[0003] Existing document 202223055054.7 discloses an observation window for vacuum equipment for nanopowder production, which mainly solves the problem that during the use of existing vacuum equipment for nanopowder production, powders are easily scattered and adsorbed on the glass lens surface of the observation window, which is not conducive to the subsequent observation of production status by production personnel. However, during long-term use, it was found that: 1. Its cleaning cotton is connected to the furnace environment and is easily indirectly contaminated, resulting in incomplete subsequent cleaning; 2. The pull-out bottom plate that mainly drives the movement of the cleaning cotton relies on auxiliary wheels, which is prone to mechanical friction and abnormal noise for a long time. Therefore, how to provide a long-term clear observation field of view while ensuring vacuum sealing and high temperature conditions, and be able to effectively clean the observation window, has become a difficulty in technical research and development. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum observation window for a horizontal graphite heating furnace in order to solve the problems that the existing observation window of a horizontal graphite heating furnace lacks certain protection for the cleaning cotton, which affects subsequent use, and the parts that drive the cleaning cotton to operate are prone to certain mechanical friction noises after long-term use.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a vacuum observation window of a graphite horizontal heating furnace comprises a horizontal heating furnace, and an observation window assembly is provided on the side wall of the horizontal heating furnace;

[0006] The observation window assembly includes an observation port fixed on the side wall of the horizontal heating furnace, the end wall of the observation port body is provided with transparent glass, and a storage bin is provided on the side wall of the observation port located at the transparent glass. A sealing plate is provided at one end of the storage bin through a torsion spring for rotation, and a cylinder is provided at the other end of the storage bin. The telescopic rod of the cylinder passes through the storage bin and is provided with a mounting base. Cleaning cotton is provided in the mounting base, and sliders are provided on both side walls of the mounting base, and a guide rail that cooperates with the slider is fixedly provided in the storage bin cavity.

[0007] Furthermore, the side wall of the storage bin is double-layered, and a vacuum structure is used between the double layers.

[0008] Furthermore, a sealing rubber ring is provided between the storage bin and the sealing plate.

[0009] Furthermore, the transparent glass and the end surface of the cleaning cotton are located on the same vertical plane, and the diameter of the transparent glass is smaller than the height of the cleaning cotton.

[0010] Furthermore, the cleaning cotton is installed in a detachable manner and is made of high-temperature resistant material.

[0011] Furthermore, the cross section of the guide rail is in the shape of an "I" character, and the sliding block is provided with an embedding groove that matches the "I" shape.

[0012] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0013] 1. Efficient observation and cleaning function: The design of cleaning cotton combined with cylinder drive can easily clean the transparent glass, maintain the clarity of the observation window, ensure stable observation in a vacuum environment, and reduce the difficulty of subsequent maintenance;

[0014] 2. Sealing effect: The sealing cover of the storage bin is set, which can be opened when the cleaning cotton is working and automatically closed when it is not working. It can effectively prevent the interference of the environment in the heating furnace on the cleaning cotton, thereby ensuring the cleaning cotton's subsequent cleaning effect on the transparent glass;

[0015] 3. Smooth control: The design of the slider and the guide rail can smoothly and accurately control the cleaning cotton to work, avoiding some mechanical friction and abnormal noise;

[0016] 4. Long-lasting use: The cleaning cotton is made of high-temperature resistant material, which helps to extend its service life and adapt to the needs of high-temperature working environment, ensuring that it is not easily damaged during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the present utility model;

[0018] Figure 2 This is a schematic structural diagram of the observation window assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the storage bin of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the cylinder of the utility model.

[0021] In the figure: 1-horizontal heating furnace, 2-observation window assembly;

[0022] 201-Observation port, 202-Transparent glass, 203-Storage bin, 204-Sealing plate, 205-Cylinder, 206-Mounting base, 207-Cleaning cotton, 208-Slider, 209-Guide rail. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1:

[0025] Combine Figure 1-4 The structure shown mainly consists of a horizontal heating furnace 1 and an observation window assembly 2 provided on its side wall, through which the environment inside the horizontal heating furnace 1 can be observed;

[0026] The observation window assembly 2 includes an observation port 201 fixed on the side wall of the horizontal heating furnace 1. A transparent glass 202 is installed on the end wall of the cavity of the observation port 201. The design of the transparent glass 202 can effectively provide a clear observation field of view, which is convenient for monitoring the working status in the horizontal heating furnace 1. In order to ensure the long-term use effect of the transparent glass 202 under subsequent vacuum conditions, a storage bin 203 is set on the side wall of the observation port 201. The design of the storage bin 203 has certain operability. One end is connected to a sealing plate 204 by a torsion spring, and the other end is set There is a cylinder 205, the telescopic rod of the cylinder 205 passes through the storage bin 203, and a mounting base 206 is provided at one end of the telescopic rod. Cleaning cotton 207 is provided inside the mounting base 206 for cleaning the surface of the transparent glass 202 to ensure that the transparency of the observation window does not affect the observation of the internal situation of the horizontal heating furnace 1 under high-temperature working environment. Sliders 208 are provided on both side walls of the mounting base 206. These slides 208 cooperate with guide rails 209 fixed in the cavity of the storage bin 203 to ensure that the mounting base 206 stably drives the cleaning cotton 207 to work.

[0027] When the transparent glass 202 needs to be cleaned, the user can control the extension and contraction of the cylinder 205 to drive the installation base 206 to move, and the installation base 206 drives the cleaning cotton 207 to move, so as to facilitate maintenance and cleaning. During this process, the sealing plate 204 of the storage bin 203 is opened and closed by the torsion spring. Through this design, the observation window of the graphite horizontal heating furnace not only has a good field of view, but also can maintain cleanliness in a long-term high-temperature working environment, ensuring that the operator can observe the situation in the furnace at any time without being affected.

[0028] In this embodiment, the side wall of the storage bin 203 adopts a double-layer setting, and a vacuum is used between the double layers. The double-layer structure effectively increases the strength and stability of the side wall, thereby improving its overall pressure resistance and durability when placed in the horizontal heating furnace 1. In addition, the vacuum layer between the double layers has a good heat insulation effect, which can reduce the impact of the environment inside the horizontal heating furnace 1.

[0029] In this embodiment, a sealing rubber ring is provided between the storage bin 203 and the sealing plate 204. The sealing rubber ring can form a tight sealing barrier at the contact portion between the storage bin 203 and the sealing plate 204, effectively preventing the environment in the furnace from affecting the cleaning cotton 207 in the storage bin 203. The material selection of the sealing rubber ring usually takes into account its high temperature resistance, corrosion resistance and good elasticity to adapt to the long-term use requirements in high temperature environments. In addition, the sealing rubber ring also has a certain pressure resistance, and can maintain a good sealing state as the storage bin 203 is opened and closed, and is not easily deformed or failed.

[0030] In this embodiment, the end faces of the transparent glass 202 and the cleaning cotton 207 are located on the same vertical plane, and the diameter of the transparent glass 202 is smaller than the height of the cleaning cotton 207. This design ensures the functional cooperation and coordination between the transparent glass 202 and the cleaning cotton 207. By aligning the end faces of the two, it can be ensured that the cleaning cotton 207 can effectively cover the areas of the transparent glass 202 that need to be cleaned, avoiding any omissions or dead corners during the cleaning process. In addition, the diameter of the transparent glass 202 is smaller than the height of the cleaning cotton 207. This design further enhances the covering ability of the cleaning cotton 207. The height of the cleaning cotton 207 is sufficient to enable it to fully contact and clean the surface of the transparent glass 202 during the cleaning process, ensuring that the transparent glass 202 always remains clean and dust-free during use.

[0031] In this embodiment, the cleaning cotton 207 is installed in a detachable manner. The cleaning cotton 207 is made of high-temperature resistant material. The cleaning cotton 207 is installed in a detachable manner. This design allows the cleaning cotton to be easily replaced and maintained. The user can easily take out the old cleaning cotton and replace it with a new cleaning cotton as needed, reducing the tedious operations in the cleaning process and improving the efficiency and convenience of equipment use. In addition, the cleaning cotton 207 is made of high-temperature resistant material. This choice is based on the special needs of the working environment of the graphite horizontal heating furnace. The high-temperature resistant material can withstand the challenges of the high-temperature environment in the furnace. During the cleaning operation, the material will not be deformed, melted or degraded due to excessive temperature. The high-temperature resistant property ensures that the cleaning cotton can maintain its cleaning function and structural stability after long-term use at high temperature, thereby effectively cleaning the transparent glass 202 without being affected by high temperature.

[0032] In this embodiment, the cross-section of the guide rail 209 is in the shape of an "I", and the slider 208 is provided with an embedding groove that matches the "I" shape. The cross-section of the guide rail 209 is in the shape of an "I". This design enables the guide rail 209 to have excellent stability and strength when carrying and guiding the movement of the slider 208. The guide rail structure with an "I" cross-section effectively improves the rigidity of the guide rail 209, while providing a larger contact area, which can better disperse the load and ensure that the slider 208 follows the track smoothly and accurately during movement. This shape not only enhances the load-bearing capacity of the guide rail 209, but also can reduce the impact of friction or vibration generated during use to a certain extent, providing a smoother operating experience. In addition, the embedding groove design makes the contact between the slider 208 and the guide rail 209 more stable, effectively preventing the slider from offsetting or shaking during operation, thereby improving the accuracy and safety of the movement.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vacuum observation window of a graphite horizontal heating furnace, comprising a horizontal heating furnace (1), characterized in that: An observation window assembly (2) is provided on the side wall of the horizontal heating furnace (1); The observation window assembly (2) includes an observation port (201) fixed on the side wall of the horizontal heating furnace (1), a transparent glass (202) is provided on the end wall of the cavity of the observation port (201), a storage bin (203) is provided on the side wall of the observation port (201) located at the transparent glass (202), one end of the storage bin (203) is rotatably connected to a sealing plate (204) via a torsion spring, and the other end of the storage bin (203) is provided with a cylinder (205), a telescopic rod of the cylinder (205) passes through the storage bin (203) and is provided with a mounting base (206), a cleaning cotton (207) is provided in the mounting base (206), sliders (208) are provided on both side walls of the mounting base (206), and a guide rail (209) that matches the slider (208) is fixedly provided in the cavity of the storage bin (203).

2. The vacuum observation window of the graphite horizontal heating furnace according to claim 1, characterized in that: The side wall of the storage bin (203) is double-layered, and a vacuum structure is used between the double layers.

3. The vacuum observation window of the graphite horizontal heating furnace according to claim 2, characterized in that: A sealing rubber ring is provided between the storage bin (203) and the sealing plate (204).

4. The vacuum observation window of the graphite horizontal heating furnace according to claim 3, characterized in that: The end faces of the transparent glass (202) and the cleaning cotton (207) are located on the same vertical plane, and the diameter of the transparent glass (202) is smaller than the height of the cleaning cotton (207).

5. The vacuum observation window of the graphite horizontal heating furnace according to claim 4, characterized in that: The cleaning cotton (207) is detachably installed and is made of a high-temperature resistant material.

6. The vacuum observation window of the graphite horizontal heating furnace according to claim 5, characterized in that: The guide rail (209) has an I-shaped cross section, and the slider (208) is provided with an embedding groove that matches the I-shaped section.

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