High-temperature-resistant fireproof special rubber sealing element capable of avoiding abrasion and used for helicopter

Abstract

The high-temperature-resistant fireproof special rubber sealing element for the helicopter comprises a rubber sealing ring, a reinforcing device and a positioning block, a through hole is formed in the middle of the rubber sealing ring, a high-temperature-resistant layer is fixedly connected to the outer side face of the rubber sealing ring, a fireproof coating is sprayed to the outer side of the high-temperature-resistant layer, and the through hole is formed in the middle of the rubber sealing ring. A reinforcing device is fixedly connected to the rubber sealing ring, a plurality of positioning blocks are fixedly connected to the inner ends and the outer ends of the upper surface and the lower surface of the rubber sealing ring at equal angles, baffles are fixedly connected to the outer ends of the upper surface and the lower surface of the rubber sealing ring, and non-slip mats are fixedly connected to the inner side faces of the baffles. The reinforcing device is formed by combining a containing groove, a transverse reinforcing rod, a V-shaped reinforcing piece, a connecting ring and a vertical reinforcing rod, and the transverse reinforcing rod is fixedly connected into the containing groove. The high-temperature-resistant fireproof special rubber sealing element capable of avoiding abrasion for the helicopter can avoid abrasion, can improve the pressure resistance of the sealing element, and can resist high temperature and prevent fire.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, in particular to a high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear. Background Technique

[0002] A special rubber seal is used in helicopter manufacturing. Gasket seals play an important role in modern industry. Seal failure can cause phenomena such as leakage, seepage, dripping, etc., seriously affecting the performance of parts. If the seal is not good, it may even cause part failure and even lead to serious accidents.

[0003] The Chinese utility model patent with the reference authorization publication number CN214999372U discloses a special rubber seal, which relates to the technical field of seals. It includes a number of spark plug sealing gaskets, a number of bolt hole gaskets, and a connecting belt. Adjacent spark plug sealing gaskets and bolt hole gaskets are connected by a connecting belt. The spark plug sealing gasket includes a first gasket layer, a second gasket layer provided on the upper end of the first gasket layer, and a first compressive part provided on the side wall of the second gasket layer. The utility model can effectively avoid the situation of gasket inclination, the whole seal is uniformly stressed, greatly improving the sealing effect of the seal, and the uniform stress can effectively extend the service life of the seal; the compressive structure of the utility model has higher compressive performance and can maintain its original state under a large acting force, and can avoid the seal from falling down and causing leakage when being compressed; the compressive structure of the utility model has a smaller area and less raw material consumption compared with the traditional gasket compressive structure, and can greatly reduce the production process cost.

[0004] However, in the existing technology, when the sealing ring is used and is squeezed, etc., it will cause certain damage to the sealing ring, which is not convenient for avoiding wear of the sealing ring. Moreover, when the surface of the rubber sealing ring is squeezed or impacted, the compressive resistance of the sealing ring cannot be increased. And when the special rubber seal for helicopters is used, it does not have the problems of high temperature resistance and fire prevention. Therefore, we propose a high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, so as to solve the problems in the existing technology raised in the above background technique, that is, when the sealing ring is used and is squeezed, etc., it will cause certain damage to the sealing ring, which is not convenient for avoiding wear of the sealing ring. Moreover, when the surface of the rubber sealing ring is squeezed or impacted, the compressive resistance of the sealing ring cannot be increased. And when the special rubber seal for helicopters is used, it does not have the problems of high temperature resistance and fire prevention.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, comprising a rubber sealing ring, a strengthening device, and positioning blocks. A through hole is provided in the middle of the rubber sealing ring, and a high-temperature resistant layer is fixedly connected to the outer side surface of the rubber sealing ring, and a fireproof coating is sprayed on the outer side of the high-temperature resistant layer. A strengthening device is fixedly connected to the rubber sealing ring, and a plurality of positioning blocks are fixedly connected to the inner and outer ends of the upper and lower surfaces of the rubber sealing ring at equal angles, and baffles are fixedly connected to the outer ends of the upper and lower surfaces of the rubber sealing ring, and an anti-slip pad is fixedly connected to the inner side surface of the baffle.

[0007] Preferably, the strengthening device is composed of a storage groove, a horizontal strengthening rod, a V-shaped strengthening member, a connecting ring, and a vertical strengthening rod. A horizontal strengthening rod is fixedly connected in the storage groove, a V-shaped strengthening member is installed on the outer side of the horizontal strengthening rod, and a connecting ring is installed on the inner side of the horizontal strengthening rod, and a plurality of vertical strengthening rods are fixedly connected to the connecting ring at equal angles.

[0008] Preferably, a plurality of storage grooves are provided at equal angles in the middle of the upper and lower surfaces of the rubber sealing ring.

[0009] Preferably, the V-shaped strengthening members are fixedly connected to the outer side surface of the rubber sealing ring at equal angles.

[0010] Preferably, connecting rings are fixedly connected to the upper and lower ends inside the through hole, and a plurality of vertical strengthening rods are fixedly connected to the connecting ring at equal angles on the inner side.

[0011] Preferably, the inner sides of the upper and lower ends of the V-shaped strengthening member are respectively fixedly connected to the outer side surfaces of the upper and lower baffles.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: The high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear can avoid wear, increase the compressive resistance of the seal, and be resistant to high temperature and fire;

[0013] 1. A plurality of positioning blocks are fixedly connected to the inner and outer ends of the upper and lower surfaces of the rubber sealing ring at equal angles, baffles are fixedly connected to the outer ends of the upper and lower surfaces of the rubber sealing ring, and an anti-slip pad is fixedly connected to the inner side surface of the baffle, which can avoid wear;

[0014] 2. A strengthening device is fixedly connected to the rubber sealing ring, a plurality of horizontal strengthening rods are fixedly connected to the middle of the upper and lower surfaces of the rubber sealing ring at equal angles, a circle of V-shaped strengthening members is fixedly connected to the outer side surface of the rubber sealing ring, and a connecting ring and a vertical strengthening rod are fixedly connected to the through hole in the middle of the rubber sealing ring, which can increase the compressive resistance of the seal;

[0015] 3. The outer surface of the rubber sealing ring is sprayed with a high-temperature resistant layer, and the outer side of the high-temperature resistant layer is sprayed with a fireproof coating. The main materials of the high-temperature resistant layer include silicone rubber, fluororubber, hydrogenated nitrile rubber, polytetrafluoroethylene, graphite, etc., which can resist high temperatures and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front perspective sectional structure schematic diagram of the present utility model;

[0017] Figure 2 is a front perspective structure schematic diagram of the present utility model;

[0018] Figure 3 is a bottom perspective structure schematic diagram of the present utility model;

[0019] Figure 4 is a top perspective structure schematic diagram of the present utility model;

[0020] Figure 5 is a top perspective connection structure schematic diagram of the strengthening device of the present utility model;

[0021] Figure 6 is a top perspective sectional structure schematic diagram of the present utility model.

[0022] In the figure: 1, rubber sealing ring; 2, through hole; 3, high-temperature resistant layer; 4, fireproof coating; 5, strengthening device; 501, storage groove; 502, horizontal strengthening rod; 503, V-shaped strengthening member; 504, connecting ring; 505, vertical strengthening rod; 6, positioning block; 7, baffle; 8, anti-slip pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1: Please refer to Figures 1 - 4 , for the existing special rubber seal for helicopters, when the seal ring is squeezed during use, there is a certain damage to the seal ring, and it is not convenient to avoid wear of the seal ring. To solve this technical problem, the following technical content is disclosed in this embodiment;

[0025] A plurality of positioning blocks 6 are fixedly connected to the inner and outer ends of the upper and lower surfaces of the rubber sealing ring 1 at equal angles, and baffles 7 are fixedly connected to the outer ends of the upper and lower surfaces of the rubber sealing ring 1, and anti-slip pads 8 are fixedly connected to the inner sides of the baffles 7;

[0026] When installing the rubber sealing ring 1, align the positioning blocks 6 on the upper and lower surfaces of the rubber sealing ring 1 with the relatively opened grooves on the connecting device. The inner side of the baffle 7 outside the rubber sealing ring 1 fits against the outer side of the external connecting device. The anti-slip pad 8 on the inner side of the baffle 7 can increase the friction between the outer side of the external connecting device and the baffle 7, preventing the position of the rubber sealing ring 1 from shifting when the rubber sealing ring 1 is impacted or squeezed, resulting in wear of the rubber sealing ring 1.

[0027] Embodiment 2: For the existing special rubber seal for helicopters, when the surface of the sealing ring is squeezed or impacted, the compressive resistance of the sealing ring cannot be increased. Therefore, this embodiment adopts the following technical solutions, as Figures 1 - 3 、 Figure 5 and Figure 6 shown;

[0028] A strengthening device 5 is fixedly connected to the rubber sealing ring 1. The strengthening device 5 is composed of a storage groove 501, a horizontal strengthening rod 502, a V-shaped strengthening member 503, a connecting ring 504 and a vertical strengthening rod 505. A plurality of storage grooves 501 are equiangularly opened in the middle of the upper and lower surfaces of the rubber sealing ring 1, and a horizontal strengthening rod 502 is fixedly connected in the storage groove 501. And a V-shaped strengthening member 503 is installed outside the horizontal strengthening rod 502. The V-shaped strengthening members 503 are equiangularly fixedly connected to the outer side of the rubber sealing ring 1, and the inner sides of the upper and lower ends of the V-shaped strengthening member 503 are respectively fixedly connected to the outer sides of the upper and lower baffles 7. A connecting ring 504 is installed inside the horizontal strengthening rod 502. Connecting rings 504 are fixedly connected to both the upper and lower ends inside the through hole 2, and a plurality of vertical strengthening rods 505 are equiangularly fixedly connected inside the connecting ring 504, and a plurality of vertical strengthening rods 505 are equiangularly fixedly connected to the connecting ring 504;

[0029] The function of the horizontal strengthening rod 502 is to prevent the middle part of the rubber sealing ring 1 from being bent due to extrusion or impact, affecting the sealing effect. The V-shaped strengthening member 503 and the vertical strengthening rod 505 can prevent the rubber sealing ring 1 from being deformed due to long-term extrusion, causing damage to the rubber sealing ring 1. The strengthening device 5 can increase the compressive resistance of the rubber sealing ring 1 and prevent the rubber sealing ring 1 from deforming and affecting the sealing effect.

[0030] Embodiment 3: For the existing special rubber seal for helicopters, when the special rubber seal for helicopters is in use, it is not resistant to high temperature and fire. Therefore, this embodiment adopts the following technical solutions, as Figures 1 - 6 shown;

[0031] A through hole 2 is opened in the middle of the rubber sealing ring 1, and a high-temperature resistant layer 3 is fixedly connected to the outer side of the rubber sealing ring 1, and a fireproof coating 4 is sprayed on the outer side of the high-temperature resistant layer 3;

[0032] The main materials of the high-temperature resistant layer 3 include silicone rubber, fluororubber, hydrogenated nitrile rubber, polytetrafluoroethylene, graphite, etc. These materials can increase the high-temperature resistance of the rubber sealing ring 1. Then, a fireproof coating 4 is sprayed on the surface of the high-temperature resistant layer 3 to prevent the rubber sealing ring 1 from being damaged by fire.

[0033] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, comprising a rubber sealing ring (1), a strengthening device (5) and a positioning block (6), characterized in that: A through hole (2) is opened in the middle of the rubber sealing ring (1), and a high-temperature resistant layer (3) is fixedly connected to the outer side surface of the rubber sealing ring (1), and a fireproof coating (4) is sprayed on the outer side of the high-temperature resistant layer (3). A strengthening device (5) is fixedly connected to the rubber sealing ring (1), and a plurality of positioning blocks (6) are fixedly connected to the inner and outer ends of the upper and lower surfaces of the rubber sealing ring (1) at equal angles, and baffles (7) are fixedly connected to the outer ends of the upper and lower surfaces of the rubber sealing ring (1). An anti-slip pad (8) is fixedly connected to the inner side surface of the baffle (7).

2. The high-temperature resistant and fireproof special rubber seal for helicopter that can avoid abrasion according to claim 1, wherein: The strengthening device (5) is composed of a storage groove (501), a transverse strengthening rod (502), a V-shaped strengthening member (503), a connecting ring (504) and a vertical strengthening rod (505). A transverse strengthening rod (502) is fixedly connected in the storage groove (501), a V-shaped strengthening member (503) is installed on the outer side of the transverse strengthening rod (502), and a connecting ring (504) is installed on the inner side of the transverse strengthening rod (502). A plurality of vertical strengthening rods (505) are fixedly connected to the connecting ring (504) at equal angles.

3. A high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, characterized in that: A plurality of storage grooves (501) are opened at equal angles in the middle of the upper and lower surfaces of the rubber sealing ring (1).

4. The high-temperature resistant and fireproof special rubber seal for helicopter that can avoid wear according to claim 2, wherein: The V-shaped strengthening members (503) are fixedly connected to the outer side surface of the rubber sealing ring (1) at equal angles.

5. A high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, characterized in that: Connecting rings (504) are fixedly connected to the inner upper and lower ends of the through hole (2), and a plurality of vertical strengthening rods (505) are fixedly connected to the inner side of the connecting ring (504) at equal angles.

6. A high-temperature resistant and fireproof special rubber seal for helicopters that can avoid wear, characterized in that: The inner upper and lower ends of the V-shaped strengthening member (503) are respectively fixedly connected to the outer side surfaces of the upper and lower baffles (7).

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