A sealed spring seat structure for an aircraft

Abstract

This utility model discloses a sealing spring seat structure for aviation applications, belonging to the field of spring seats. It includes a support base, with a first spring fixedly connected to the top of the support base. A buffer seat is fixedly connected to the end of the first spring away from the support base. Through the setting of a limiting rod, a limiting hole, a first sealing cover, and a second sealing cover, the second sealing cover can slide down to the top of the support base, allowing the upper part of the first spring to be exposed for maintenance. Simultaneously, by reversing the support base, the first sealing cover can slide down onto the buffer seat, allowing maintenance of the lower part of the first spring. This device ensures good sealing performance for the first spring, preventing external dust and foreign objects from easily getting trapped inside and affecting its performance if the device fails to provide a seal. Furthermore, the disassembly process of the first sealing cover is simple, saving time and effort.

Description

Technical Field

[0001] This utility model relates to the field of spring seat technology, specifically a sealed spring seat structure for aviation applications. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. It is a part made of elastic material that deforms under the action of external force and returns to its original shape after the external force is removed. It is also called a "spring". A spring seat is usually used to fix one end of the spring so that it can effectively transmit the spring's force, increase the spring's stiffness, increase the spring's natural vibration frequency, and reduce resonance. It is widely used in automobiles, aerospace and other fields.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN214578496U) discloses a spring seat, which includes a spring seat composed of an annular base and a mounting plate. The base is fixedly disposed above the mounting plate, and the base and the mounting plate are an integral structure. A torsion spring is provided inside the base, and the lower end of the torsion spring is embedded in the base. A damping pad is provided on the inner wall of the base, and multiple annular damping pads are provided on the inner side of the base. The outer wall of the damping pads is in contact with the inner wall of the base.

[0004] In the aforementioned patent, although the torsional resistance of the torsion spring is increased by adding the resistance generated by the friction between the damping pad and the damping pad during torsion, thus meeting the requirements of some mechanisms for the resistance of the torsion spring, most spring seats in the prior art do not have good sealing performance. When the spring seat does not have good sealing performance, external dust and foreign objects can easily get stuck in the spring and affect its performance. Therefore, it is necessary to set a sealing cover to seal the spring. However, the installation of the sealing cover is usually fixed with bolts, which makes the disassembly process cumbersome, time-consuming and labor-intensive when the sealing cover needs to be removed for spring maintenance.

[0005] Therefore, this utility model provides a sealed spring seat structure for aviation applications to solve the above-mentioned problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a sealed spring seat structure for aviation applications, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an aviation-grade sealed spring seat structure, comprising a support base, a first spring fixedly connected to the top of the support base, a buffer seat fixedly connected to the end of the first spring away from the support base, a first sealing cover for surrounding the first spring being provided on the top of the support base, a second sealing cover for surrounding the first spring being slidably connected inside the first sealing cover, a limit rod slidably connected to the outer wall of the buffer seat, a second spring fixedly connected to the outer wall of the buffer seat, the end of the second spring away from the buffer seat being fixedly connected to the inner wall of the end of the limit rod, the limit rod being inserted into the inner ring of the second spring, and a limit hole for the limit rod to be inserted into the interior of the second sealing cover.

[0010] As a preferred technical solution of this application, the support base has an opening inside, and a gear is rotatably connected inside the support base within the opening.

[0011] As a preferred technical solution of this application, a cleaning rod is fixedly connected inside the gear, penetrating the interior of the support base, and the cleaning rod is located in the inner ring of the first spring.

[0012] As a preferred technical solution of this application, a rack meshes with the gear, and a force-bearing block is fixedly connected to the outer wall of the rack.

[0013] As a preferred technical solution of this application, the outer wall of the buffer seat is fixedly connected to a squeezing block that contacts the force-bearing block, and the squeezing block and the outer wall of the force-bearing block are inclined.

[0014] As a preferred technical solution of this application, a connecting rod is fixedly connected to the outer wall of the rack, and the connecting rod is slidably connected inside the support base.

[0015] As a preferred technical solution of this application, a third spring is fixedly connected to the outer wall of the rack, and the end of the third spring away from the rack is fixedly connected to the inner wall of the support base, and the connecting rod is inserted through the inner ring of the third spring.

[0016] (III) Beneficial Effects

[0017] This invention utilizes a limiting rod, a limiting hole, a first sealing cover, and a second sealing cover. The limiting rod, using the elastic force of the second spring, can smoothly engage with the limiting hole within the second sealing cover to secure it. Furthermore, the second sealing cover can extend and retract within the first sealing cover as the buffer seat moves. When the limiting rod is pulled outwards, the second sealing cover slides to the top of the support base, exposing the upper part of the first spring for inspection. Conversely, by reversing the support base, the first sealing cover slides onto the buffer base for inspection of the lower part of the first spring. This device ensures good sealing of the first spring, preventing external dust and foreign objects from easily getting trapped inside and affecting its performance if the device fails to provide a proper seal. The disassembly of the first sealing cover is also simple, saving time and effort. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a sealing spring seat structure for aviation applications.

[0019] Figure 2 This is a schematic diagram of a cross-section of a sealing spring seat structure for aviation applications.

[0020] Figure 3 This is a schematic diagram of an explosion occurring in a sealed spring seat structure for aircraft.

[0021] Figure 4 This is a schematic diagram of the cleaning rod in a sealing spring seat structure for aviation applications.

[0022] Figure 5 for Figure 3 A magnified structural diagram at point A;

[0023] In the picture:

[0024] 1. Support base; 2. First spring; 3. Buffer base; 4. First sealing cover; 5. Second sealing cover; 6. Limiting rod; 7. Second spring; 8. Limiting hole; 9. Opening; 10. Gear; 11. Cleaning rod; 12. Rack; 13. Force-bearing block; 14. Extrusion block; 15. Connecting rod; 16. Third spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a sealing spring seat structure for aviation applications, such as... Figures 1-5 As shown, the spring seat includes a support seat 1, a first spring 2 is fixedly connected to the top of the support seat 1, a buffer seat 3 is fixedly connected to the end of the first spring 2 away from the support seat 1, a first sealing cover 4 for surrounding the first spring 2 is provided on the top of the support seat 1, a second sealing cover 5 for surrounding the first spring 2 is slidably connected inside the first sealing cover 4, a limit rod 6 is slidably connected to the outer wall of the buffer seat 3, a second spring 7 is fixedly connected to the outer wall of the buffer seat 3, the end of the second spring 7 away from the buffer seat 3 is fixedly connected to the inner wall of the end of the limit rod 6, the limit rod 6 is inserted through the inner ring of the second spring 7, and a limit hole 8 for the limit rod 6 to be inserted is provided inside the second sealing cover 5.

[0027] Specifically, when it is necessary to fix the second sealing cover 5 so that it can cooperate with the first sealing cover 4 to seal the first spring 2, the limiting rod 6 is first inserted into the limiting hole 8 on the second sealing cover 5 by the elastic force of the second spring 7. The elastic tension provided by the second spring 7 ensures that the limiting rod 6 has good stability when it is in the limiting hole 8, ensuring the connection stability between the second sealing cover 5 and the buffer seat 3. Furthermore, by utilizing the extension and retraction of the second sealing cover 5 within the first sealing cover 4, when the first spring 2 is compressed, the buffer seat 3 can drive the second sealing cover 5 to retract and adjust accordingly within the first sealing cover 4. This allows the second sealing cover 5 and the first sealing cover 4 to be positioned and adjusted in accordance with the elastic compression of the first spring 2, ensuring that the first sealing cover 4 and the second sealing cover 5 can always provide a complete seal for the first spring 2, preventing external dust or debris from entering the first spring 2 and affecting its compression performance. When it is necessary to disassemble the first sealing cover 4 and the second sealing cover 5 to inspect the first spring 2, the limiting rod 6 is pulled outward. This allows the limiting rod 6 to disengage from the limiting hole 8 on the second sealing cover 5. Since the second sealing cover 5 lacks a limiting point, it can slide down to contact the support base 1, exposing the upper half of the first spring 2 for maintenance. When the lower half of the first spring 2 needs maintenance, the buffer base 3 can be reversed. Because there is no connection between the first sealing cover 4 and the support base 1, when the buffer base 3 is reversed, the first sealing cover 4 can slide down to contact the buffer base 3, exposing the lower half of the first spring 2. The exposed design allows for easy maintenance by staff, and the disassembly process is simple, saving time and effort. This prevents staff from expending excessive physical energy during the maintenance of the first spring 2. When the second sealing cover 5 needs to be reinstalled, first pull the limiting rod 6 outward continuously, then push the second sealing cover 5 upward until it contacts the buffer seat 3. Then release the limiting rod 6, allowing it to be easily inserted into the limiting hole 8 of the second sealing cover 5 by utilizing the elastic force of the second spring 7, thereby fixing the second sealing cover 5 in place.

[0028] The support base 1 has an opening 9 inside, and a gear 10 is rotatably connected inside the support base 1 within the opening 9.

[0029] A cleaning rod 11 is fixedly connected inside the gear 10, penetrating the interior of the support base 1. The cleaning rod 11 is located inside the first spring 2.

[0030] A rack 12 meshes with the gear 10, and a force-bearing block 13 is fixedly connected to the outer wall of the rack 12.

[0031] The outer wall of the buffer seat 3 is fixedly connected to a compression block 14 that contacts the force-bearing block 13. The compression block 14 and the outer wall of the force-bearing block 13 are inclined.

[0032] A connecting rod 15 is fixedly connected to the outer wall of the rack 12, and the connecting rod 15 is slidably connected inside the support base 1.

[0033] A third spring 16 is fixedly connected to the outer wall of the rack 12. The end of the third spring 16 away from the rack 12 is fixedly connected to the inner wall of the support base 1. The connecting rod 15 is inserted through the inner ring of the third spring 16.

[0034] Specifically, when the first spring 2 is compressed, one end of it can drive the buffer seat 3 to move downwards. This causes the buffer seat 3 to move the squeezing block 14 downwards until it contacts the force-bearing block 13. The squeezing block 14, through its oblique engagement with the force-bearing block 13, can then smoothly squeeze the force-bearing block 13. This causes the force-bearing block 13 to drive the rack 12 to move into the support seat 1. The gear 10 meshing with the rack 12 then drives the cleaning rod 11 to rotate. This allows the multiple brushes on the cleaning rod 11 to clean the impurities on the first spring 2. Furthermore, during the downward compression of the first spring 2, the brushes on the cleaning rod 11 can fully contact the first spring 2, ensuring that the cleaning rod 11 thoroughly cleans the impurities on the first spring 2. This prevents the strength of the first spring 2 from being affected by the presence of impurities, thus ensuring the effectiveness of the first spring 2. The third spring 16 provides the rack 12 with elastic adjustment force, so that when the first spring 2 is decompressed, the buffer seat connected to its end... 3 will naturally reset, so that after the squeezing block 14 on the buffer seat 3 resets, the squeezing block 14 can lose the squeezing of the force block 13, causing the rack 12 to reset using the elastic force of the third spring 16. This ensures that the rack 12 and the force block 13 can continue to be squeezed by the squeezing block 14 next time, so that the cleaning rod 11 can repeatedly clean the first spring 2 according to each compression process of the first spring 2. The connecting rod 15 provides a stable connection point for the rack 12, and the sliding cooperation between the connecting rod 15 and the support seat 1 allows the rack 12 to move at the same time, preventing the rack 12 from being unstable due to the connection of the third spring 16 alone. This ensures that the third spring 16 will not bend when the squeezing block 14 squeezes the force block 13, and also indirectly ensures the placement stability of the rack 12, so that the rack 12 can always form a normal meshing position with the gear 10. The opening 9 provides space for the gear 10 and rack 12 and other structures, preventing the gear 10 and rack 12 and other structures from failing to operate normally.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An aviation-grade sealed spring seat structure, comprising a support seat (1), characterized in that: A first spring (2) is fixedly connected to the top of the support base (1). A buffer seat (3) is fixedly connected to the end of the first spring (2) away from the support base (1). A first sealing cover (4) for surrounding the first spring (2) is provided on the top of the support base (1). A second sealing cover (5) for surrounding the first spring (2) is slidably connected inside the first sealing cover (4). A limit rod (6) is slidably connected to the outer wall of the buffer seat (3). A second spring (7) is fixedly connected to the outer wall of the buffer seat (3). The end of the second spring (7) away from the buffer seat (3) is fixedly connected to the inner wall of the end of the limit rod (6). The limit rod (6) is inserted into the inner ring of the second spring (7). A limit hole (8) for the limit rod (6) to be inserted is opened inside the second sealing cover (5).

2. The sealing spring seat structure for aviation applications according to claim 1, characterized in that: The support base (1) has an opening (9) inside, and a gear (10) is rotatably connected inside the opening (9).

3. The sealing spring seat structure for aviation applications according to claim 2, characterized in that: A cleaning rod (11) is fixedly connected inside the gear (10) through the support base (1), and the cleaning rod (11) is located in the inner ring of the first spring (2).

4. The sealing spring seat structure for aviation applications according to claim 2, characterized in that: A rack (12) meshes with the gear (10), and a force-bearing block (13) is fixedly connected to the outer wall of the rack (12).

5. The sealing spring seat structure for aviation applications according to claim 4, characterized in that: The outer wall of the buffer seat (3) is fixedly connected to a squeezing block (14) that contacts the force-bearing block (13). The squeezing block (14) and the outer wall of the force-bearing block (13) are arranged at an angle.

6. The sealing spring seat structure for aviation applications according to claim 4, characterized in that: A connecting rod (15) is fixedly connected to the outer wall of the rack (12), and the connecting rod (15) is slidably connected inside the support base (1).

7. The sealing spring seat structure for aviation applications according to claim 6, characterized in that: A third spring (16) is fixedly connected to the outer wall of the rack (12). The end of the third spring (16) away from the rack (12) is fixedly connected to the inner wall of the support base (1). The connecting rod (15) is inserted through the inner ring of the third spring (16).

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