A high-temperature-resistant sealing device for an optical fiber preform sintering furnace

Abstract

The utility model discloses a kind of high-temperature-resistant sealing devices for optical fiber preform sintering furnace, including sintering furnace main body and sealing cover;Sealing structure is arranged between the sealing cover and sintering furnace main body, when sintering furnace main body and sealing cover cover, the sealing of sintering furnace main body is realized by sealing structure;Sealing cover and sintering furnace main body are opened and closed by lifting structure between them.The utility model has adopted the structure of upper and lower sealing seat, and the cooperation of sealing ring and sealing groove between upper sealing seat and lower sealing seat realizes good sealing property;Not only effectively prevent the leakage of high-temperature gas, but also ensure that the high-temperature environment required in sintering process can be maintained, improve sintering efficiency.

Description

Technical Field

[0001] This utility model relates to a sealing device, specifically a high-temperature resistant sealing device for an optical fiber preform sintering furnace. Background Technology

[0002] Traditional sintering furnaces typically use simple gaskets or sealing rings for sealing. These designs often fail to maintain a good seal at high temperatures, leading to high-temperature gas leakage, affecting the temperature stability of the sintering process, and reducing product quality. Many sintering furnaces use manual sealing covers, which are complex and time-consuming to operate. Manual operation by operators in high-temperature environments poses safety hazards, increases labor costs, reduces work efficiency, and replacing existing sealing structures is quite troublesome. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-temperature resistant sealing device for optical fiber preform sintering furnace, so as to solve the problems existing in the background art.

[0004] The high-temperature resistant sealing device for optical fiber preform sintering furnace of this utility model is achieved through the following technical solution, including the sintering furnace body and the sealing cover. A sealing structure is provided between the sealing cover and the sintering furnace body. When the sintering furnace body is closed with the sealing cover, the sealing structure achieves the sealing of the sintering furnace body. The sealing cover and the sintering furnace body are opened and closed by a lifting structure.

[0005] As a preferred technical solution, the lifting structure includes an electric telescopic rod and a connecting plate; The electric telescopic rod is installed on the side of the sintering furnace body, and the connecting plate is set on the side of the sealing cover; the output shaft of the electric telescopic rod is connected to the connecting plate of the sealing cover, and the sealing cover is opened and closed by the electric telescopic rod, and sealed by the sealing structure.

[0006] As a preferred technical solution, the sealing structure includes an upper sealing seat and a lower sealing seat; The sealing cover is provided with an upper mounting position, and the upper sealing seat is positioned on the upper mounting position by a positioning structure; The lower sealing seat is installed at the end of the sintering furnace body through a positioning structure; a sealing groove is provided below the upper sealing seat, and a sealing ring is provided on the upper sealing seat; when the sealing cover is closed with the sintering furnace body, the sealing ring is placed in the sealing groove, thereby achieving a seal between the sintering furnace body and the sealing cover.

[0007] As a preferred technical solution, the positioning structure includes positioning grooves set at the upper mounting position and the end of the sintering furnace body; positioning blocks are provided above the upper sealing seat and below the lower sealing seat, and the positioning blocks are inserted into the positioning grooves, thereby realizing the installation between the upper sealing seat and the lower sealing seat.

[0008] As a preferred technical solution, it also includes a control panel, which is connected to control the electric telescopic rod to facilitate the opening and closing of the sealing cover.

[0009] As a preferred technical solution, both the upper and lower sealing seats are made of zirconium oxide, which gives them good sealing performance in high-temperature environments.

[0010] As a preferred technical solution, an optical fiber preform fixing seat is provided below the sealing cover.

[0011] The beneficial effects of this utility model are: This invention adopts an upper and lower sealing seat structure. The upper and lower sealing seats are connected by a sealing ring and a sealing groove, which achieves good sealing performance. This not only effectively prevents the leakage of high-temperature gas, but also ensures that the high-temperature environment required during sintering is maintained, thereby improving sintering efficiency.

[0012] This invention makes opening and closing the sealing cover more convenient and efficient through the electric telescopic rod; the operator only needs to control it through the control panel, without manual operation, to achieve sealing of the sealing cover.

[0013] This utility model uses a positioning structure to position the upper and lower sealing seats, allowing them to be disassembled and replaced. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the unfolded structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the lower sealing seat of this utility model; Figure 4 This is a schematic diagram of the installation structure of the upper sealing seat of this utility model.

[0016] Explanation of reference numerals in the attached figures

[0017] 1. Sintering furnace body; 2. Sealing cover; 3. Electric telescopic rod; 4. Connecting plate; 5. Upper sealing seat; 6. Lower sealing seat; 7. Upper mounting position; 8. Sealing groove; 9. Sealing ring; 10. Positioning groove; 11. Positioning block; 12. Optical fiber preform fixing seat. Detailed Implementation

[0018] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] like Figures 1-4 As shown, a high-temperature resistant sealing device for an optical fiber preform sintering furnace according to the present invention includes a sintering furnace body 1 and a sealing cover 2. A sealing structure is provided between the sealing cover 2 and the sintering furnace body 1. When the sintering furnace body 1 and the sealing cover 2 are closed, the sealing structure achieves the sealing of the sintering furnace body 1. The sealing cover 2 and the sintering furnace body 1 are opened and closed by a lifting structure.

[0020] The lifting structure includes an electric telescopic rod 3 and a connecting plate 4; The electric telescopic rod 3 is installed on the side of the sintering furnace body 1, and the connecting plate 4 is set on the side of the sealing cover 2; the output shaft of the electric telescopic rod 3 is connected to the connecting plate 4 of the sealing cover 2, and the sealing cover 2 is opened and closed by the electric telescopic rod 3, and sealed by the sealing structure.

[0021] The sealing structure includes an upper sealing seat 5 and a lower sealing seat 6. The sealing cover 2 is provided with an upper mounting position 7, and the upper sealing seat 5 is positioned on the upper mounting position 7 by a positioning structure; The lower sealing seat 6 is installed at the end of the sintering furnace body 1 through a positioning structure; a sealing groove 8 is provided below the upper sealing seat 5, and a sealing ring 9 is provided on the upper sealing seat 5; when the sealing cover 2 is closed with the sintering furnace body 1, the sealing ring 9 is placed in the sealing groove 8, thereby achieving a seal between the sintering furnace body 1 and the sealing cover 2.

[0022] In order to achieve the effect of positioning and installation, in this embodiment, the positioning structure includes a positioning groove 10 set at the upper mounting position 7 and the end of the sintering furnace body 1; a positioning block 11 is provided above the upper sealing seat 5 and below the lower sealing seat 6, and the positioning block 11 is inserted into the positioning groove 10, thereby realizing the installation between the upper sealing seat 5 and the lower sealing seat 6.

[0023] For ease of control, this embodiment also includes a control panel, which is connected to control the electric telescopic rod 3 to operate, thereby facilitating the opening and closing of the sealing cover 2.

[0024] In order to achieve good sealing performance, in this embodiment, both the upper sealing seat 5 and the lower sealing seat 6 are made of zirconium oxide, which enables them to have good sealing performance in high-temperature environments.

[0025] To facilitate the fixing of the optical fiber preform, in this embodiment, an optical fiber preform fixing seat 12 is provided below the sealing cover 2.

[0026] This invention adopts an upper and lower sealing seat structure. The upper and lower sealing seats are connected by a sealing ring and a sealing groove, which achieves good sealing performance. This not only effectively prevents the leakage of high-temperature gas, but also ensures that the high-temperature environment required during sintering is maintained, thereby improving sintering efficiency.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A high-temperature resistant sealing device for an optical fiber preform sintering furnace, characterized in that, Includes the sintering furnace body (1) and the sealing cover (2); A sealing structure is provided between the sealing cover (2) and the sintering furnace body (1). When the sintering furnace body (1) and the sealing cover (2) are closed, the sintering furnace body (1) is sealed through the sealing structure. The sealing cover (2) and the sintering furnace body (1) are opened and closed through a lifting structure.

2. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 1, characterized in that: The lifting structure includes an electric telescopic rod (3) and a connecting plate (4); The electric telescopic rod (3) is installed on the side of the sintering furnace body (1), and the connecting plate (4) is set on the side of the sealing cover (2). The output shaft of the electric telescopic rod (3) is connected to the connecting plate (4) of the sealing cover (2). The electric telescopic rod (3) drives the sealing cover (2) to open and close, and seals it through the sealing structure.

3. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 1, characterized in that: The sealing structure includes an upper sealing seat (5) and a lower sealing seat (6); The sealing cover (2) is provided with an upper mounting position (7), and the upper sealing seat (5) is positioned on the upper mounting position (7) by a positioning structure; The lower sealing seat (6) is installed at the end of the sintering furnace body (1) through a positioning structure; a sealing groove (8) is provided below the upper sealing seat (5), and a sealing ring (9) is provided on the upper sealing seat (5); when the sealing cover (2) is closed with the sintering furnace body (1), the sealing ring (9) is placed in the sealing groove (8), thereby achieving a seal between the sintering furnace body (1) and the sealing cover (2).

4. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 3, characterized in that: The positioning structure includes a positioning groove (10) set at the upper mounting position (7) and the end of the sintering furnace body (1); a positioning block (11) is set above the upper sealing seat (5) and below the lower sealing seat (6), and the positioning block (11) is inserted into the positioning groove (10) to realize the installation between the upper sealing seat (5) and the lower sealing seat (6).

5. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 1, characterized in that: It also includes a control panel, which is connected to control the electric telescopic rod (3) to work, thereby facilitating the opening and closing of the sealing cover (2).

6. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 3, characterized in that: Both the upper sealing seat (5) and the lower sealing seat (6) are made of zirconium oxide.

7. The high-temperature-resistant sealing device for an optical fiber preform sintering furnace according to claim 1, characterized in that: A fiber optic preform fixing seat (12) is provided below the sealing cover (2).

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