Charging filler cap sealing structure

Abstract

The utility model discloses a charging oil filler cap sealing structure which comprises an annular rubber suction cup, a hard ring face, a plurality of round holes, short pipes, L-shaped plates, penetrating holes, springs, piston rods and a cap opening ring gasket, the round holes are formed in the hard ring face of the annular rubber suction cup, one end of each short pipe is installed at the outer port of each round hole in a sealed mode, and the other end of each short pipe is provided with a through hole. One end of a piston rod is arranged in the short pipe, the piston rod is sleeved with a spring, and one end of the spring is fixedly installed at the outer end opening of the penetrating hole. The device is reasonable in structural design, the annular rubber suction cup and the annular surface of the cover opening ring gasket which are connected are adsorbed and fixed together by pushing the piston rod, and the piston rod is pushed and pressed by external force to move downwards to the short pipe to inflate and expand into the annular rubber suction cup, so that the effect of releasing the adsorption and fixing state is achieved; the sealing performance of cover opening connection contact is enhanced, adsorption operation is convenient to implement, and adsorption fixed sealing can be removed only by opening the cover.

Description

Technical Field

[0001] The utility model relates to the field of seals, and specifically to a sealing structure for a charging and refueling port cover. Background Technique

[0002] Traditional gasoline vehicles have a refueling port, and new energy vehicles also have a charging port. GB / T20234 clearly defines the physical dimensions and communication protocols of the charging port. Therefore, new energy vehicles of each vehicle factory are compatible with charging facilities of various brands. The charging ports of the national standard are divided into AC charging ports and DC charging ports. The AC charging port can only be charged using AC charging equipment, and the charging power is generally 7kW; the DC charging port can only be charged using DC charging equipment, and the charging power is generally 50kW.

[0003] The existing sealing structure for a charging and refueling port cover has a relatively simple structure. During long-term use, the sealing performance is likely to decline, which is not conducive to waterproofing, etc., and there is a risk of external substances entering and causing accidents. Therefore, a sealing structure for a charging and refueling port cover is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing structure for a charging and refueling port cover to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions. A sealing structure for a charging and refueling port cover includes an annular rubber suction cup, a hard ring surface, round holes, short tubes, L-shaped plates, perforations, springs, piston rods, and cover port ring gaskets. A plurality of round holes are opened at the hard ring surface located on the annular rubber suction cup, and one end of each short tube is hermetically installed at the outer port of each round hole. One end of a piston rod is arranged inside the short tube. A spring is sleeved on the piston rod, and one end of the spring is fixedly installed at the outer port of the perforation. The annular rubber suction cup adsorbs on the surface of the cover port ring gasket.

[0006] Preferably, a plurality of L-shaped plates are distributed and installed on the inner circumferential wall of the annular rubber suction cup.

[0007] Preferably, windows are opened on the L-shaped plates, and a part of the piston rod passes through the perforation.

[0008] Preferably, a piston ring is arranged at one end of the piston rod, and the piston ring is in sliding contact with the inner wall of the short tube.

[0009] Preferably, the other end of the spring is fixedly connected to the inner side of the outer end of the piston rod.

[0010] Preferably, the outer end of the piston rod is fixedly connected to the corresponding structure inside the external cover body.

[0011] Preferably, the inner circumferential wall of the annular rubber suction cup is in close contact with the periphery of the corresponding part inside the external cover body.

[0012] Compared with the prior art, the advantages of the present utility model are as follows: By pushing the piston rod, the connected annular rubber suction cup and the annular surface of the cover port ring gasket are adsorbed and fixed together, and by combining the use of external force to push and move the piston rod downward to the short tube to inflate and expand the annular rubber suction cup, the function of releasing the adsorbed and fixed state is achieved, enhancing the sealing performance of the cover port connection contact. The adsorption operation is convenient, and the release of the adsorbed and fixed seal can be completed simply by opening the cover. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a three-dimensional view of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the annular rubber suction cup of the present utility model;

[0016] Figure 3 It is a side view of the overall structure of the present utility model.

[0017] In the figure: 1. Annular rubber suction cup; 101. Hard ring surface; 102. Round hole; 2. Short tube; 3. L-shaped plate; 4. Perforation; 5. Spring; 6. Piston rod; 7. Cover port ring gasket. Detailed Embodiment

[0018] In order to make the purpose, features, and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the following-described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0019] The following will further illustrate the technical solutions of the present utility model in conjunction with the drawings and through specific embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] Please refer to Figures 1-3 As shown, a sealing structure for a charging and refueling port cover includes an annular rubber suction cup 1, a rigid ring surface 101, round holes 102, a short tube 2, an L-shaped plate 3, a perforation 4, a spring 5, a piston rod 6, and a cover port ring gasket 7. Multiple round holes 102 are provided at the rigid ring surface 101 located on the annular rubber suction cup 1, and one end of a short tube 2 is hermetically installed at the outer port of each round hole 102. One end of a piston rod 6 is arranged inside the short tube 2. A spring 5 is sleeved on the piston rod 6, and one end of the spring 5 is fixedly installed at the outer port of the perforation 4. The annular rubber suction cup 1 is adsorbed on the surface of the cover port ring gasket 7.

[0022] A plurality of L-shaped plates 3 are distributed and installed on the inner circumferential wall of the annular rubber suction cup 1; windows are provided on the L-shaped plates 3, and a part of the piston rod 6 passes through the perforation 4; a piston ring is provided at one end of the piston rod 6, and the piston ring is in sliding contact with the inner wall of the short tube 2; the other end of the spring 5 is fixedly connected to the inner side of the outer end of the piston rod 6; the outer end of the piston rod 6 is fixedly connected to the corresponding structure inside the external cover body; the inner circumferential wall of the annular rubber suction cup 1 is in close contact with the corresponding part around the external cover body.

[0023] When the present utility model is in use, by pushing the piston rod 6, the annular rubber suction cup 1 connected thereto is adsorbed and fixed to the annular surface of the cover port ring gasket 7. By combining and using an external force to push and move the piston rod 6 downward, the short tube 2 inflates the annular rubber suction cup 1 inward, which serves to release the adsorbed and fixed state, enhancing the sealing performance of the connection and contact of the cover port. The adsorption operation is convenient, and the release of the adsorbed and fixed seal can be completed simply by opening the cover.

[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging fuel filler cap sealing structure, characterized in that: The invention comprises an annular rubber suction cup (1), a hard annular surface (101), a circular hole (102), a short tube (2), an L-shaped plate (3), a perforation (4), a spring (5), a piston rod (6) and a cover ring gasket (7). A plurality of circular holes (102) are provided on the hard annular surface (101) on the annular rubber suction cup (1), and one end of a short tube (2) is sealedly mounted at the outer end of each circular hole (102), and one end of a piston rod (6) is arranged in the short tube (2). A spring (5) is sleeved on the piston rod (6), and one end of the spring (5) is fixedly mounted at the outer end of the perforation (4). The annular rubber suction cup (1) is adsorbed on the surface of the cover ring gasket (7).

2. A charging fuel filler cap sealing structure according to claim 1, characterized in that: A plurality of L-shaped plates (3) are distributed and installed on the inner ring wall of the annular rubber suction cup (1).

3. The sealing structure of the charging fuel filler cap according to claim 1, characterized in that: The L-shaped plate (3) is provided with a window, and a portion of the piston rod (6) passes through the through hole (4).

4. The sealing structure of the charging fuel filler cap according to claim 1, characterized in that: A piston ring is provided at one end of the piston rod (6), and the piston ring is in sliding contact with the inner wall of the short tube (2).

5. The sealing structure of the charging fuel filler cap according to claim 1, characterized in that: The other end of the spring (5) is fixedly connected to the inner side of the outer end of the piston rod (6).

6. The sealing structure of the charging fuel filler cap according to claim 1, characterized in that: The outer end of the piston rod (6) is fixedly connected to a corresponding structure in the external cover body.

7. The sealing structure of the charging fuel filler cap according to claim 1, characterized in that: The inner ring wall of the annular rubber suction cup (1) is in close contact with the periphery of the corresponding part in the external cover body.

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