Sealing structure for annular output port of tracer cabin

Abstract

The invention discloses a sealing structure for an annular output port of a tracer cabin, which is characterized by comprising an outer shell (1), an annular blocking ring (2), an inner shell (3), a diversion cone (4) and sealant (5), the annular output port is formed by the inner shell (3) and the outer shell (1), the annular blocking ring (2) is arranged at the annular output port formed by the inner shell (3) and the outer shell (1) and is fixed by the diversion cone (4), and the sealant (5) is arranged in the annular output port. And a sufficient amount of sealant (5) is smeared at the joint, so that a sealing structure is formed. The 360-degree annular output port of the tracer cabin can be reliably sealed, the structure is simple, operability is good, and the storage requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of tracing cabins, and in particular to a sealing structure for an annular output port of a tracing cabin. Background Art

[0002] There are two types of tracer cabin outputs currently in use, one is the end face circular output and the other is the end face annular output, both of which can achieve 360° uniform flame output. The end face circular output sealing structure is relatively conventional. However, there are two annular sealing surfaces inside and outside the annular output port, which has the problem of difficult sealing structure design and operation. In order to achieve the sealing of the annular output port, this paper proposes a sealing structure for the annular output port of the tracer cabin. Summary of the invention

[0003] The purpose of the present invention is to design a sealing structure for the annular output port of a tractor cabin, which can realize the sealing of the annular output port of the tractor cabin, and provide a material that can be used for the sealing form through experiments, so that the tractor cabin forms a sealing system. The tractor cabin has passed the environmental test on the ground and met the flight test requirements, confirming the reliability of its sealing structure.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a sealing structure for an annular output port of a tractor cabin, characterized in that it includes: an outer shell 1, an annular blocking ring 2, an inner shell 3, a guide cone 4, and a sealant 5. The inner shell 3 and the outer shell 1 form an annular output port, the annular blocking ring 2 is placed at the annular output port formed by the inner shell 3 and the outer shell 1, is fixed with the guide cone 4, and a sufficient amount of sealant 5 is applied at the connection, thereby forming a sealing structure.

[0005] Furthermore, the inner shell 3 and the outer shell 1 form a 360° annular output port.

[0006] Furthermore, after the annular blocking ring 2 is fixed with the guide cone 4, a proper amount of sealant 5 is applied to the gap between the annular blocking ring 2 and the outer shell 1, and the gap between the annular blocking ring 2 and the outer shell 1 and the guide cone 4, respectively, to form a sealing structure together.

[0007] Furthermore, the annular blocking ring 2 is an annular U-shaped structure, the thickness of the vertical edge on the outer diameter side is not less than 5 mm, and the thickness of the vertical edge on the inner diameter side is not less than 3 mm.

[0008] Furthermore, a V-shaped groove is prefabricated on the end surface of the U-shaped structure.

[0009] Furthermore, the U-shaped bottom thickness of the annular blocking ring 2 is 1 mm, and the V-shaped groove depth is 0.5 mm.

[0010] Furthermore, the annular blocking ring 2 is made of a laminated rod material or a high-silica wound glass fiber material.

[0011] Furthermore, the sealant 5 is evenly applied on the annular sealing surfaces of the inner shell 3 and the outer shell 1 .

[0012] Furthermore, the sealant 5 is epoxy glue.

[0013] Furthermore, the sealant 5 is Haiyan-914 sealant.

[0014] Compared with the prior art, the technical benefits of the present invention are:

[0015] The invention provides a sealing structure for an annular output port, which has a simple structure and good operability and can realize product sealing and reliable storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] A sealing structure for an annular output port of a tracing cabin of the present invention is provided by the following embodiments and drawings.

[0017] Figure 1 It is a schematic diagram of the sealing structure for the annular output port of the tracing cabin of the present invention.

[0018] In the figure: 1-outer shell; 2-annular blocking ring; 3-inner shell; 4-guide cone; 5-sealant.

[0019] Figure 2 It is a schematic diagram of the overall structure of the annular blocking ring of the present invention.

[0020] Figure 3 It is a partial enlarged schematic diagram of the V-shaped groove of the annular blocking ring of the present invention. DETAILED DESCRIPTION

[0021] The sealing structure for the annular output port of a tracing cabin of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] The invention provides a sealing structure capable of realizing an annular output port. Figure 1 Schematic diagram of the sealing structure for the annular output port of the tracing cabin of the present invention. Figure 1 As shown, the sealing structure of the present invention includes an outer shell 1, an annular blocking ring 2, an inner shell 3, a guide cone 4, and a sealant 5. The inner shell 3 and the outer shell 1 are connected to form an annular output port. The inner shell 3 and the outer shell 1 form a 360° annular output port. The annular blocking ring 2 is placed at the annular output port formed by the inner shell 3 and the outer shell 1, and is fixed by the guide cone 4.

[0023] Figure 2 Schematic diagram of the overall structure of the annular blocking ring of the present invention. Figure 2The outer shell 1 and the inner shell 3 are both provided with an inwardly recessed concave platform structure at the annular output port, and the annular blocking ring 2 abuts against the concave platform structures of the outer shell 1 and the inner shell 3 in the radial direction of the annular shape, thereby enhancing the sealing performance. The guide cone 4 abuts against one side of the inner shell 3 of the annular blocking ring 2. A second concave platform is further provided on the side of the inner shell 3. The guide cone 4 has a conical shape, and the inner side has a structure matching the inner shell 3 to abut against the second concave platform, so that the guide cone 4 is installed more stably. The conical side surface of the guide cone 4 enables the flame output to expand along the airflow along the conical surface, thereby reducing the influence of air resistance during flight while ensuring the effective radiation area of ​​the tracer cabin.

[0024] The sealant 5 is evenly applied to the annular sealing surfaces of the inner shell 3 and the outer shell 1. The annular plugging ring 2 is a U-shaped structure. After being placed in the annular output port, it is pressed tightly with the guide cone 4, and a sufficient amount of sealant 5 is applied at the connection to form a sealing structure. Specifically, after the annular plugging ring 2 is fixed with the guide cone 4, an appropriate amount of sealant 5 is applied to the gap between the annular plugging ring 2 and the outer shell 1, and the gap between the annular plugging ring 2 and the outer shell 1 and the guide cone 4, to form a sealing structure together.

[0025] The annular blocking ring 2 is an annular U-shaped structure, with the vertical edge thickness on the outer diameter side not less than 5mm, the vertical edge thickness on the inner diameter side not less than 3mm, the U-shaped bottom thickness is 1mm, the end face has a prefabricated V-shaped groove with a depth of 0.5mm, and the material includes but is not limited to laminated rod material or high silica wrapped glass fiber material. Figure 3 1 is a partial enlarged schematic diagram of the V-shaped groove of the annular plugging ring of the present invention. Figure 3 As shown, a plurality of V-shaped grooves may be provided, for example, two.

[0026] The sealant 5 is epoxy glue, and the material includes but is not limited to Haiyan-914 glue.

[0027] The invention can realize reliable sealing of the 360-degree annular output port of the tracer cabin, has a simple structure, good operability and meets storage requirements.

[0028] It should be noted that the above is only an illustrative description and explanation of the present invention, and those skilled in the art should understand that any modification and replacement of the present invention belongs to the protection scope of the present invention.

Claims

1. A sealing structure for an annular output port of a tracing cabin, characterized in that: include: An outer shell (1), an annular blocking ring (2), an inner shell (3), a guide cone (4), and a sealant (5); the inner shell (3) and the outer shell (1) form an annular output port; the annular blocking ring (2) is placed at the annular output port formed by the inner shell (3) and the outer shell (1), fixed by the guide cone (4), and a sufficient amount of sealant (5) is applied at the connection, thereby forming a sealing structure.

2. The sealing structure for the annular output port of the tracing cabin according to claim 1, characterized in that: The inner shell (3) and the outer shell (1) form a 360° annular output port.

3. The sealing structure for the annular output port of the tracing cabin according to claim 1, characterized in that: After the annular blocking ring (2) is fixed by the guide cone (4), a suitable amount of sealant (5) is applied to the gap between the annular blocking ring (2) and the outer shell (1), and the gap between the annular blocking ring (2) and the outer shell (1) and the guide cone (4), respectively, to form a sealing structure.

4. The sealing structure for the annular output port of the tracing cabin according to claim 1, characterized in that: The annular blocking ring (2) is an annular U-shaped structure, the thickness of the vertical edge on the outer diameter side is not less than 5mm, and the thickness of the vertical edge on the inner diameter side is not less than 3mm.

5. The sealing structure for the annular output port of the tracing cabin according to claim 4, characterized in that: The end surface of the U-shaped structure is prefabricated with a V-shaped groove.

6. The sealing structure for the annular output port of the tracing cabin according to claim 5, characterized in that: The U-shaped bottom of the annular blocking ring (2) has a thickness of 1 mm and a V-shaped groove depth of 0.5 mm.

7. The sealing structure for the annular output port of a tracing cabin according to claim 1, characterized in that: The material of the annular blocking ring (2) is a laminated rod material or a high-silica wound glass fiber material.

8. The sealing structure for the annular output port of a tracing cabin according to claim 1, characterized in that: The sealing glue (5) is evenly applied to the annular sealing surfaces of the inner shell (3) and the outer shell (1).

9. The sealing structure for the annular output port of a tracing cabin according to claim 1, characterized in that: The sealant (5) is epoxy glue.

10. The sealing structure for the annular output port of a tracing cabin according to claim 1, characterized in that: The sealant (5) is Haiyan-914 sealant.

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