Sealing structure of optical fiber gyroscope

Abstract

The utility model discloses a sealing structure of an optical fiber gyroscope, which comprises a base and an optical fiber gyroscope, the base is provided with a packaging assembly, the packaging assembly comprises a clamping sleeve and a cover plate, the cover plate is provided with a sealing assembly, the sealing assembly comprises an outer sleeve and an inner sleeve, the top of the clamping sleeve is provided with a sealing assembly, and the inner sleeve is provided with an inner sealing assembly. The sealing assembly comprises a rubber ring and a rubber ring, the inner side of the clamping sleeve is provided with a locking assembly, and the locking assembly comprises a clamping pin and an electromagnet I. According to the sealing structure of the optical fiber gyroscope, the rubber ring and the rubber ring can be utilized to form a three-layer sealing ring, so that the sealing effect is greatly improved, and the situation that the cover plate is loosened due to extrusion or vibration is avoided; therefore, the installation firmness of the cover plate and the sealing effect on the clamping sleeve are guaranteed, external impurities and dust are prevented from entering the inner side of the clamping sleeve, the situation that wiring is loosened due to tension or vibration is avoided, the line connection safety of the optical fiber gyroscope is guaranteed, and the sealing device is suitable for sealing and fixing the optical fiber gyroscope.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber optic gyroscope sealing equipment, in particular to a sealing structure of a fiber optic gyroscope. Background Art

[0002] The fiber optic gyroscope is a sensitive element based on an optical fiber coil. The light emitted by the laser diode propagates in two directions along the optical fiber. The change in the light propagation path determines the angular displacement of the sensitive element. In order to avoid interference to the fiber optic gyroscope during operation, a fiber optic gyroscope sealing structure is often required. The utility model patent with patent application number CN202123285379.X discloses a sealing structure of a fiber optic gyroscope for inclinometer. By laser welding the gyroscope Z-axis end joint and the gyroscope end joint to form a sealed whole with the gyroscope sealing tube, not only the gyroscope connection to the outside world is more stable and durable, but also the output performance is stable and reliable in the underground high temperature and high pressure working environment, the assembly process is reduced, the assembly difficulty is reduced, and the gyroscope sealing performance is more outstanding. According to the technical solution disclosed by the utility model patent, when the existing fiber optic gyroscope sealing equipment is used, on the one hand, the sealing connection is easy to loosen due to vibration or external force, which is not conducive to ensuring the sealing effect. On the other hand, when the fiber optic gyroscope is wired, the joint is easy to loosen due to pulling or vibration, which is not conducive to ensuring the safe connection of the line.

[0003] Therefore, how to design a sealing structure for a fiber optic gyroscope has become our current problem to be solved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a sealing structure for a fiber optic gyroscope to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable design and is relatively convenient to use, and is suitable for the sealing and fixing of a fiber optic gyroscope.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a fiber optic gyroscope, comprising a base and a fiber optic gyroscope, a packaging assembly being installed on the base, the packaging assembly comprising a ferrule and a cover plate, a sealing assembly being installed on the cover plate, the sealing assembly comprising an outer sleeve and an inner sleeve, a sealing assembly being installed on the top of the ferrule, the sealing assembly comprising a rubber ring and a rubber ring, a locking assembly being installed on the inner side of the ferrule, the locking assembly comprising a bayonet pin and an electromagnet 1, a wiring assembly being provided at the bottom of the ferrule, the wiring assembly comprising an opening and a seat sleeve, a fixing assembly being installed on the inner side of the ferrule, the fixing assembly comprising a sealing sleeve and an electromagnet 2.

[0006] Furthermore, the fiber optic gyroscope is mounted on the top of the base by bolts, the bottom of the ferrule is welded to the top of the base, the ferrule is sleeved on the outside of the fiber optic gyroscope, and the cover plate is clamped on the top of the ferrule.

[0007] Furthermore, the outer sleeve and the inner sleeve are integrally formed at the bottom of the cover plate, the outer sleeve and the inner sleeve are respectively clamped on the outer side and inner wall of the ferrule, the rubber ring is bonded to the top of the ferrule, and the rubber rings are respectively bonded to the outer side and inner side of the ferrule.

[0008] Furthermore, the rubber ring is clamped on the bottom of the cover plate, and the rubber ring is respectively clamped on the inner wall of the outer sleeve and the outer side of the inner sleeve, the rubber ring is connected with the rubber ring through a connecting tube, a bayonet is provided on the inner side of the outer sleeve, a slot is provided on the inner side of the clamping sleeve, and the electromagnet is welded on the inner wall of the slot.

[0009] Furthermore, one end of the bayonet is connected to the electromagnet via a spring, and the other end of the bayonet passes through the slot and extends to the inner side of the bayonet. A guide column is integrally formed at the bottom of the bayonet, and the guide column is clamped on the inner side of the bayonet.

[0010] Furthermore, an opening is provided at the bottom of the ferrule, and wiring ports are installed on both sides of the fiber optic gyroscope, the opening is located on the outside of the wiring ports, the seat sleeve is welded to the inner wall of the bottom of the ferrule, the sleeve is located on the top of the seat sleeve, and the two sides of the sleeve are clamped on the outer side of the seat sleeve.

[0011] Furthermore, the second electromagnet is welded to the inner wall of the ferrule, the sleeve is connected to the second electromagnet via a second spring, and the top of the seat cover and the bottom of the sleeve are both bonded with silicone.

[0012] Furthermore, the base is externally connected to a switch group, and the switch group is connected to the first electromagnet and the second electromagnet through electric wires.

[0013] The rubber ring is then pressed against the inner wall of the outer sleeve and the outer side of the inner sleeve to form a three-layer sealing ring, which greatly improves the sealing effect. The bayonet is clamped on the bottom of the bayonet in the outer sleeve under the elastic force of the spring. At the same time, the bottom of the bayonet is locked by the guide column, which effectively avoids the loosening of the cover plate due to squeezing or vibration, thereby effectively ensuring the installation firmness of the cover plate and the sealing effect of the ferrule, avoiding external impurities and dust from entering the inner side of the ferrule, and ensuring the working reliability of the fiber optic gyroscope. When the fiber optic gyroscope needs to be repaired, the cover plate is first squeezed downward to move the guide column out from the inner side of the bayonet, and then the electromagnet is turned on. The electromagnet pulls the bayonet out from the inner side of the bayonet, and the cover plate can be taken out upward, thereby facilitating the repair of the fiber optic gyroscope.

[0014] 2. When the sealing structure of the fiber optic gyroscope is connected, the second electromagnet is first opened, and the second electromagnet pulls the cover upward by magnetic force, thereby opening the opening, inserting the wiring connector into the inner side of the wiring port on the fiber optic gyroscope, and then the second electromagnet is closed, and the second spring squeezes the cover downward, so that the cover and the seat cover are clamped on the outer side of the wiring through silicone, thereby effectively ensuring the firmness of the wiring, and at the same time using silicone to seal the opening, effectively preventing the wiring from loosening due to tension or vibration, and ensuring the safety of the line connection of the fiber optic gyroscope.

[0015] 3. The sealing structure of the fiber optic gyroscope is reasonably designed, which is more efficient and convenient to use and is suitable for the sealing and fixing of the fiber optic gyroscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sealing structure of a fiber optic gyroscope of the utility model;

[0017] Figure 2 It is a cross-sectional view of a sealing structure of a fiber optic gyroscope of the utility model;

[0018] Figure 3 It is a cross-sectional view of a bayonet of a sealing structure of a fiber optic gyroscope according to the utility model;

[0019] Figure 4 A side sectional view of a sealing structure of a fiber optic gyroscope according to the utility model;

[0020] In the figure: 1. base; 2. fiber optic gyroscope; 3. ferrule; 4. cover plate; 5. outer sleeve; 6. inner sleeve; 7. rubber ring; 8. rubber ring; 9. connecting tube; 10. bayonet; 11. bayonet pin; 12. electromagnet 1; 13. spring 1; 14. guide column; 15. opening; 16. seat cover; 17. cover; 18. electromagnet 2; 19. spring 2; 20. silicone. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4The utility model provides a technical solution: a sealing structure of a fiber optic gyroscope, comprising a base 1 and a fiber optic gyroscope 2, a packaging component is installed on the base 1, the packaging component comprises a ferrule 3 and a cover plate 4, a sealing component is installed on the cover plate 4, the sealing component comprises an outer sleeve 5 and an inner sleeve 6, a sealing component is installed on the top of the ferrule 3, the sealing component comprises a rubber ring 7 and a rubber ring 8, a locking component is installed on the inner side of the ferrule 3, the locking component comprises a bayonet pin 11 and an electromagnet 12, a wiring component is arranged at the bottom of the ferrule 3, the wiring component comprises an opening 15 The inner side of the ferrule 3 is provided with a fixing assembly, the fixing assembly includes a sleeve 17 and an electromagnet 18, the bottom of the ferrule 3 is provided with an opening 15, both sides of the fiber optic gyroscope 2 are provided with wiring ports, the opening 15 is located on the outside of the wiring port, the ferrule 16 is welded to the inner wall of the bottom of the ferrule 3, the sleeve 17 is located at the top of the ferrule 16, the two sides of the sleeve 17 are clamped on the outer side of the ferrule 16, the electromagnet 18 is welded to the inner wall of the ferrule 3, the sleeve 17 is connected to the electromagnet 18 by a spring 19, the ferrule 16 ... The top and the bottom of the sealing sleeve 17 are both bonded with silicone 20. The base 1 is externally connected to a switch group, and the switch group is connected to the electromagnet 12 and the electromagnet 2 18 through wires. When in use, the cover plate 4 is squeezed and clamped on the top of the rubber ring 7, so that the air in the rubber ring 7 is squeezed to the inside of the rubber ring 8 through the connecting pipe 9, thereby causing the rubber ring 8 to expand and be sealed and clamped on the inner wall of the outer sleeve 5 and the outer side of the inner sleeve 6. The rubber ring 7 and the rubber ring 8 form a three-layer sealing ring, which greatly improves the sealing effect. The bayonet pin 11 is clamped on the bottom of the bayonet 10 in the outer sleeve 5 under the elastic force of the spring 13, and the bayonet pin 11 is clamped at the bottom of the bayonet 10 in the outer sleeve 5. The bottom of the pin 11 is locked by the guide column 14, which effectively prevents the cover plate 4 from loosening due to squeezing or vibration, thereby effectively ensuring the installation firmness of the cover plate 4 and the sealing effect on the ferrule 3, preventing external impurities and dust from entering the inner side of the ferrule 3, and ensuring the working reliability of the fiber optic gyroscope 1. When the fiber optic gyroscope 1 needs to be repaired, first squeeze the cover plate 4 downward to move the guide column 14 out from the inner side of the bayonet 11, and then turn on the electromagnet 12. The electromagnet 12 pulls the bayonet 11 out from the inner side of the bayonet 10, and the cover plate 4 can be taken out upward, thereby facilitating the maintenance of the fiber optic gyroscope 1.

[0023] In this embodiment, the fiber optic gyroscope 2 is mounted on the top of the base 1 by bolts, the bottom of the ferrule 3 is welded to the top of the base 1, the ferrule 3 is sleeved on the outside of the fiber optic gyroscope 2, the cover plate 4 is clamped on the top of the ferrule 3, the outer sleeve 5 and the inner sleeve 6 are both integrally formed at the bottom of the cover plate 4, the outer sleeve 5 and the inner sleeve 6 are respectively clamped on the outer side and inner wall of the ferrule 3, the rubber ring 7 is bonded to the top of the ferrule 3, the rubber ring 8 is respectively bonded to the outer side and inner side of the ferrule 3, the rubber ring 7 is clamped on the bottom of the cover plate 4, the rubber ring 8 is respectively clamped on the inner wall of the outer sleeve 5 and the outer side of the inner sleeve 6, the rubber ring 7 is connected with the rubber ring 8 through a connecting tube 9, a bayonet 10 is provided on the inner side of the outer sleeve 5, a slot is provided on the inner side of the ferrule 3, the electromagnet 12 is welded on the inner wall of the slot, the bayonet pin 11 One end of the pin 11 is connected to the electromagnet 12 through a spring 13, and the other end of the bayonet 11 passes through the slot and extends to the inner side of the bayonet 10. The bottom of the bayonet 10 is integrally formed with a guide column 14, and the guide column 14 is clamped on the inner side of the bayonet 11. When wiring, the electromagnet 18 is first opened, and the electromagnet 18 pulls the cover 17 upward through magnetic force, so that the opening 15 is opened, and the wiring connector is inserted into the inner side of the wiring port on the fiber optic gyroscope 1, and then the electromagnet 18 is closed, and the spring 19 squeezes the cover 17 downward, so that the cover 17 and the seat cover 16 are clamped on the outer side of the wiring through the silica gel 20, thereby effectively ensuring the firmness of the wiring, and at the same time, the opening 15 is sealed with the silica gel 20, which effectively prevents the wiring from loosening due to tension or vibration, thereby ensuring the safety of the line connection of the fiber optic gyroscope 1.

[0024] The sealing structure of the fiber optic gyroscope provides power to all electrical devices through an external power supply. When in use, the cover plate 4 is squeezed and clamped on the top of the rubber ring 7, so that the air in the rubber ring 7 is squeezed to the inner side of the rubber ring 8 through the connecting pipe 9, thereby causing the rubber ring 8 to expand and be sealed and clamped on the inner wall of the outer sleeve 5 and the outer side of the inner sleeve 6. The rubber ring 7 and the rubber ring 8 form a three-layer sealing ring, which greatly improves the sealing effect. The bayonet pin 11 is clamped on the bottom of the bayonet 10 in the outer sleeve 5 under the elastic force of the spring 13, and the bottom of the bayonet pin 11 is locked by the guide column 14, which effectively avoids loosening due to squeezing or vibration of the cover plate 4, thereby effectively ensuring the installation firmness of the cover plate 4 and the sealing effect of the ferrule 3, preventing external impurities and dust from entering the inner side of the ferrule 3, and ensuring the working reliability of the fiber optic gyroscope 1. When the fiber optic gyroscope 1 needs to be repaired When the cover plate 4 is pressed downward, the guide column 14 is moved out from the inner side of the bayonet 11, and then the electromagnet 12 is opened. The electromagnet 12 pulls the bayonet 11 out from the inner side of the bayonet 10, and the cover plate 4 can be taken out upward, so as to facilitate the maintenance of the fiber optic gyroscope 1. When wiring, the electromagnet 2 18 is opened first. The electromagnet 2 18 pulls the cover 17 upward by magnetic force, so that the opening 15 is opened, and the wiring connector is inserted into the inner side of the wiring port on the fiber optic gyroscope 1, and then the electromagnet 2 18 is closed. The spring 2 19 presses the cover 17 downward, so that the cover 17 and the seat cover 16 are clamped on the outer side of the wiring through the silica gel 20, thereby effectively ensuring the firmness of the wiring. At the same time, the opening 15 is sealed with the silica gel 20 to effectively prevent the wiring from loosening due to tension or vibration, thereby ensuring the safety of the line connection of the fiber optic gyroscope 1.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sealing structure for a fiber optic gyroscope, comprising a base (1) and a fiber optic gyroscope (2), wherein a packaging component is mounted on the base (1), and the packaging component comprises a ferrule (3) and a cover plate (4), wherein: A sealing assembly is mounted on the cover plate (4), the sealing assembly comprising an outer sleeve (5) and an inner sleeve (6); a sealing assembly is mounted on the top of the ferrule (3), the sealing assembly comprising a rubber ring (7) and a rubber ring (8); a locking assembly is mounted on the inner side of the ferrule (3), the locking assembly comprising a latch (11) and an electromagnet 1 (12); a wiring assembly is disposed at the bottom of the ferrule (3), the wiring assembly comprising an opening (15) and a seat sleeve (16); a fixing assembly is mounted on the inner side of the ferrule (3), the fixing assembly comprising a sealing sleeve (17) and an electromagnet 2 (18).

2. The sealing structure of a fiber optic gyroscope according to claim 1, characterized in that: The optical fiber gyroscope (2) is mounted on the top of the base (1) by means of bolts, the bottom of the ferrule (3) is welded to the top of the base (1), the ferrule (3) is sleeved on the outside of the optical fiber gyroscope (2), and the cover plate (4) is clamped on the top of the ferrule (3).

3. The sealing structure of a fiber optic gyroscope according to claim 2, characterized in that: The outer sleeve (5) and the inner sleeve (6) are integrally formed at the bottom of the cover plate (4); the outer sleeve (5) and the inner sleeve (6) are respectively clamped on the outer side and the inner wall of the clamping sleeve (3); the rubber ring (7) is bonded to the top of the clamping sleeve (3); and the rubber ring (8) is respectively bonded to the outer side and the inner side of the clamping sleeve (3).

4. The sealing structure of a fiber optic gyroscope according to claim 3, characterized in that: The rubber ring (7) is clamped on the bottom of the cover plate (4), and the rubber ring (8) is clamped on the inner wall of the outer sleeve (5) and the outer side of the inner sleeve (6) respectively. The rubber ring (7) is connected to the rubber ring (8) through a connecting tube (9). The inner side of the outer sleeve (5) is provided with a bayonet (10), and the inner side of the clamping sleeve (3) is provided with a slot. The electromagnet (12) is welded to the inner wall of the slot.

5. The sealing structure of a fiber optic gyroscope according to claim 4, characterized in that: One end of the bayonet (11) is connected to an electromagnet (12) via a spring (13), and the other end of the bayonet (11) passes through a slot and extends to the inside of the bayonet (10). A guide column (14) is integrally formed at the bottom of the bayonet (10), and the guide column (14) is clamped on the inside of the bayonet (11).

6. The sealing structure of a fiber optic gyroscope according to claim 1, characterized in that: An opening (15) is provided at the bottom of the ferrule (3), and wiring ports are installed on both sides of the fiber optic gyroscope (2), wherein the opening (15) is located outside the wiring port, the seat sleeve (16) is welded to the inner wall of the bottom of the ferrule (3), the sealing sleeve (17) is located at the top of the seat sleeve (16), and the two sides of the sealing sleeve (17) are clamped on the outer side of the seat sleeve (16).

7. The sealing structure of a fiber optic gyroscope according to claim 6, characterized in that: The second electromagnet (18) is welded to the inner wall of the clamping sleeve (3), the sealing sleeve (17) is connected to the second electromagnet (18) via the second spring (19), and the top of the seat sleeve (16) and the bottom of the sealing sleeve (17) are both bonded with silica gel (20).

8. The sealing structure of a fiber optic gyroscope according to claim 7, characterized in that: The base (1) is externally connected to a switch group, and the switch group is connected to the first electromagnet (12) and the second electromagnet (18) via electric wires.

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