Protective structure of valve handle for refueling connector

Abstract

The utility model relates to the technical field of protective structures, in particular to a protective structure of a valve handle for a refueling connector, a lantern ring is sleeved on the surface of the refueling connector, a handle is hinged on the surface of the lantern ring through an eccentric shaft, and the protective structure comprises movable parts symmetrically arranged on two sides of the lantern ring, a sliding assembly is arranged between the movable part and the lantern ring, so that the movable part can do circular motion around the axis of the lantern ring. Compared with a traditional method, the protection structure is designed for potential safety hazards during resetting of the valve handle of the aviation pressure refueling connector, rapid rebound energy of the handle is absorbed through the elastic protection net, and the hand injury risk of an operator is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protection structure, concretely relates to a protection structure of valve handle for refueling connector. BACKGROUND

[0002] The valve handle is associated with a valve, and plays a role of locking pipeline and increasing sealing performance during oil injection.

[0003] When filling fuel by using the aviation pressure refueling connector, the valve handle needs to be moved to lock the refueling connector and the connection, and the valve handle needs to be reset manually by the operator when the refueling connector is loosened. However, due to the pressure in the pipeline, the handle is reset and rotated at a high speed and with a large force. When the operator holds the valve handle to reset, the operator's hand is easily hit by the handle due to the rebounding force, and the hand is further hit by the refueling connector, causing injury. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art. Therefore, the utility model aims to provide a heat energy recycling system and method and electronic equipment to improve the safety of the valve handle.

[0005] The utility model discloses the purpose that can be realized through the following technical scheme:

[0006] A protection structure of valve handle for refueling connector, a sleeve ring is sleeved on the surface of the refueling connector, a handle is hingedly installed on the surface of the sleeve ring through an eccentric shaft, and the protection structure comprises:

[0007] A movable part symmetrically installed on both sides of the sleeve ring, a sliding assembly is arranged between the movable part and the sleeve ring, so that the movable part can make circular motion around the shaft of the sleeve ring.

[0008] A plurality of elastic blocks are arranged along the length direction of the movable part, and the two ends of the elastic block are fixedly connected with the movable parts on both sides respectively. The adjacent elastic blocks are connected through elastic belts to form an elastic protection net around the handle.

[0009] In some embodiments of the utility model, the sliding assembly comprises an arc-shaped guide groove opened on both sides of the sleeve ring and a guide block arranged on the side surface of the movable part, and the guide block is embedded in the guide groove and slides along the guide groove.

[0010] In some embodiments of the utility model, the elastic block comprises a first elastic block, a second elastic block and a third elastic block arranged in sequence along the length direction of the movable part, and the spacing between the adjacent elastic blocks is equal.

[0011] In some embodiments of the utility model, the tensile strength of the elastic band is 5-15N / mm², and both ends thereof are fixed to the middle part of the adjacent elastic blocks respectively.

[0012] In some embodiments of the utility model, the elastic blocks are in the form of "U" or " " structure with the opening downward, and the opening end faces the shaft center of the collar.

[0013] In some embodiments of the utility model, a plurality of elastic rods are connected between both ends of the elastic block.

[0014] In some embodiments of the utility model, the material of the elastic block, the elastic band and the elastic rod is silicon rubber or polyurethane, and the surface is provided with anti-skid lines.

[0015] In some embodiments of the utility model, the deployment length of the elastic protection net is greater than the maximum rotation stroke when the handle resets, and the deformation amount can cover the rebound path of the handle.

[0016] The utility model has the advantages of:

[0017] Compared with the traditional method, the protection structure is designed for the safety hazard of the aviation pressure refueling connector valve handle reset, the elastic protection net absorbs the rapid rebound energy of the handle, and the risk of hand injury of the operator is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings.

[0019] Figure 1 It is the perspective view of the utility model in the implementation state;

[0020] Figure 2 It is the perspective view of the collar and handle in the utility model;

[0021] Figure 3 It is the perspective view of the movable part in the utility model;

[0022] Figure 4 It is the side view of the protection mechanism in the utility model;

[0023] Figure 5 It is the perspective view of the protection mechanism in the utility model.

[0024] In the drawing: 1, refueling connector;11, collar;12, guide groove;2, handle;3, movable part;31, guide block;32, first elastic block;33, second elastic block;34, third elastic block;35, elastic band;36, elastic rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] As shown in Figure 1 , Figure 2 , a protective structure of a handle of a fuel filler neck valve, the surface of the fuel filler neck 1 is sleeved with a collar 11, the handle 2 is hingedly installed on the surface of the collar 11 through an eccentric shaft, and the protective structure comprises: movable members 3 symmetrically installed on both sides of the collar 11, a sliding assembly is arranged between the movable members 3 and the collar 11, so that the movable members 3 can make circumferential movement around the axis of the collar 11; a plurality of elastic blocks are arranged at intervals along the length direction of the movable members 3, and the two ends of the elastic blocks are fixedly connected with the movable members 3 on both sides respectively; the adjacent elastic blocks are connected through elastic belts 35, forming an elastic protective net around the handle 2.

[0027] When the handle 2 is not in use, if the movable members 3 continuously cover the gap between the handle 2 and the collar 11, the initial operation of the handle 2 can be hindered. Therefore, when the handle 2 is not operated, the operator can manually push the movable members 3 to move to the initial position away from the handle 2 (such as the back of the collar 11), so as to avoid forming an obstacle; when the handle 2 is pried open and locked, the operator controls the movable members 3 to be guided through the track of the guide groove 12, and the movable members 3 slide into the reset path area of the handle 2, so that the position of the elastic protective net corresponds to the reset position of the handle 2. If the handle 2 hits the elastic protective net under pressure, the plurality of elastic blocks and the elastic belts 35 absorb impact energy through multi-stage deformation, thereby protecting the operator's hands. After the handle 2 is reset, the movable members 3 can be separated from the handle 2 due to the elastic characteristic of the elastic protective net, and the subsequent use of the handle 2 is not affected.

[0028] As shown in Figure 2 , Figure 3 , in some embodiments of the utility model, the sliding assembly comprises arc-shaped guide grooves 12 opened on both sides of the collar 11 and guide blocks 31 arranged on the side surface of the movable members 3, and the guide blocks 31 are embedded in the guide grooves 12 and slide along the guide grooves 12. The sliding assembly can ensure that the movable members 3 and the elastic protective net can be used flexibly with the handle 2 in different use states of the handle 2.

[0029] As an example, the elastic protection net formed by the plurality of elastic blocks and the elastic band 35 is stretched and deformed when the movable piece 3 moves, and the kinetic energy of the handle 2 is absorbed by the ductility of the elastic material. The material of the elastic block, the elastic band 35 and the elastic rod 36 is silicone rubber or polyurethane, and the surface is provided with anti-skid lines. The surface anti-skid lines enhance the friction with the hand, avoid slipping during operation, and the high resilience characteristics of the material ensure that the protection performance can be maintained after long-term use.

[0030] As shown in Figure 4 , Figure 5 indicates that, in some embodiments of the utility model, the elastic block includes first elastic block 32, second elastic block 33 and third elastic block 34 arranged in turn along the length direction of movable piece 3, and the spacing between adjacent elastic blocks is equal. When the handle 2 rebounds and impacts the elastic protection net, the elastic block absorbs the impact energy by deforming itself, and the equal spacing ensures that the impact force is uniformly dispersed, avoiding local stress concentration.

[0031] As an example, the elastic block (such as the first elastic block 32) adopts a multi-layer composite structure. The inner layer is a high-density sponge layer, which provides initial cushioning; the middle layer is a silicone rubber matrix, which absorbs the main impact energy; and the outer layer is a polyurethane anti-skid layer, which is provided with diamond-shaped convex patterns on the surface to increase the friction with the hand.

[0032] In some embodiments of the utility model, the tensile strength of the elastic band 35 is 5-15 N / mm², and the two ends thereof are fixed to the middle of adjacent elastic blocks respectively. When the handle 2 is impacted, the elastic band 35 absorbs the impact energy by tensile deformation, and the tensile strength parameter ensures that it does not break under the maximum impact force.

[0033] As shown in Figure 4 , Figure 5 indicates that, in some embodiments of the utility model, the elastic block is in a "U" shape or "Fang" structure with the opening downward, and the opening end faces the shaft center of the sleeve ring 11. When impacted by the handle 2, the opening end can be elastically deformed inward to form a spring-like buffering effect.

[0034] As an example, a triangular support rib is additionally arranged at the internal corner of the "U" shape or "Fang" structure of the elastic block with the opening downward to prevent the structure from failing due to excessive compression of the elastic block.

[0035] As shown in Figure 5 , in some embodiments of the utility model, a plurality of elastic rods 36 are connected between the two ends of the elastic block. The elastic rod 36 connects the two ends of the elastic block transversely to form a three-dimensional network structure. When the elastic block is stressed, the elastic rod 36 further absorbs energy by bending deformation, while limiting the excessive deformation of the elastic block.

[0036] As an example, the elastic rod 36 adopts a spiral spring structure, with a diameter of 1.5 mm, a pitch of 2 mm, and a material of memory alloy (such as nickel-titanium alloy). When the elastic block is pressed, the elastic rod 36 absorbs the lateral impact force by spiral deformation, while limiting the lateral displacement of the elastic block, forming a three-dimensional buffering system.

[0037] In some embodiments of the utility model, the elastic protection net has an unfolding length greater than the maximum rotation stroke of the handle 2 in the reset state, and the deformation amount can cover the rebound path of the handle 2, so that the rebound path of the handle 2 is always within the coverage range of the elastic protection net, and the use is more convenient.

[0038] The protection structure is designed for the safety hazard of the handle 2 of the aviation pressure refueling connector valve in the reset state, absorbs the rapid rebound energy of the handle 2 through the elastic protection net, and significantly reduces the risk of hand injury of the operator.

[0039] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above is only an example and description of the utility model, and those skilled in the art can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as they do not deviate from the scope defined by the utility model or exceed the scope defined by the present claims, which shall belong to the protection scope of the utility model.

Claims

1. A protection structure of a hand lever of a fuel filler connector valve, a surface of a fuel filler connector is provided with a collar, and a hand lever is hingedly installed on the surface of the collar through an eccentric shaft, characterized in that, The protective structure comprises: movable members symmetrically installed on both sides of the collar, a sliding assembly is arranged between the movable members and the collar, so that the movable members can make circumferential movement around the axis of the collar; a plurality of elastic blocks are arranged along the length direction of the movable members, two ends of the elastic blocks are respectively fixedly connected with the movable members on both sides; the adjacent elastic blocks are connected through elastic belts, forming an elastic protective net around the handle.

2. The protective structure of a nozzle valve handle according to claim 1, characterized in that, The sliding assembly comprises arc-shaped guide grooves opened on both sides of the collar, and guide blocks arranged on the side surface of the movable members, the guide blocks are embedded in the guide grooves and slide along the guide grooves.

3. The protective structure of a nozzle valve handle according to claim 1, wherein The elastic blocks comprise first elastic blocks, second elastic blocks and third elastic blocks arranged along the length direction of the movable members in sequence, the spacing between the adjacent elastic blocks is equal.

4. The protective structure of a nozzle valve handle according to claim 1, wherein The tensile strength of the elastic belt is 5-15 N / mm², and the two ends of the elastic belt are respectively fixed to the middle part of the adjacent elastic blocks.

5. The protective structure of a nozzle valve handle according to claim 1, wherein The elastic blocks are in "U" type or "H" structure with the opening downward, and the opening end faces the axis of the collar.

6. The protective structure of a nozzle valve handle according to claim 5, wherein A plurality of elastic rods are connected between the two ends of the elastic blocks.

7. The protective structure of a nozzle valve handle according to claim 6, characterized in that, The material of the elastic blocks, the elastic belt and the elastic rods is silicone rubber or polyurethane, and the surface is provided with anti-skid lines.

8. The protective structure of a nozzle valve handle according to claim 1, wherein The deployment length of the elastic protective net is greater than the maximum rotation stroke of the handle when the handle is reset, and the deformation amount can cover the rebound path of the handle.

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