Flow guide device, main cover unit and uncovered refueling device

Abstract

The utility model relates to the technical field of automobile refueling devices, and provides a fluid director, a main cover unit and an uncovered refueling device.The fluid director comprises a fluid director shell, a guiding structure and a limiting structure, the fluid director shell is provided with a fluid director channel and guides oil, and the guiding structure is arranged on the fluid director shell and located in the fluid director channel; the limiting structure is arranged on the flow guide shell and located in the flow guide channel, and an avoiding distance exists between the upper end face of the limiting structure and the upper end face, corresponding to the insertion end of the flow guide channel, of the flow guide shell. The oil gun insert is guided to the position abutting against the limiting structure through the guiding structure so as to limit the inserting stroke of the oil gun. By the adoption of the structure, the guide structure is designed to be used for guiding the oil gun to be inserted, the oil gun can be guided to the correct position, and it is ensured that the oil gun can be accurately inserted into the fluid director; and the limiting structure aims to limit the insertion depth of the oil gun, so that the accuracy and the safety of oil filling operation can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile refueling devices, in particular to a deflector, a main cover unit and a capless refueling device. Background Art

[0002] At present, a refueling device is usually installed on the refueling pipe of the automobile fuel tank to close the refueling port. When refueling, the refueling gun is inserted into the refueling pipe along the refueling device to refuel the fuel tank. Therefore, the refueling device is an indispensable component in the automobile fuel system.

[0003] The deflector of the refueling device of the related art guides the oil to flow into the fuel tank. However, during the process of inserting the refueling gun into the deflector, it is impossible to accurately grasp the insertion depth, which is time-consuming and labor-intensive, and affects the refueling efficiency. Utility Model Content

[0004] The utility model provides a deflector, which is used to solve the problem in the related art that during the process of inserting a refueling gun into the deflector, the insertion depth cannot be accurately controlled, which is time-consuming and labor-intensive, and affects the refueling efficiency.

[0005] The utility model provides a flow guide, comprising:

[0006] A flow guide housing, wherein the flow guide housing is provided with a flow guide channel, wherein the flow guide channel is used for inserting a refueling gun and guiding oil;

[0007] A guide structure, provided on the flow guide housing, the guide structure is located in the flow guide channel, and the guide structure is used to guide the insertion of the refueling gun;

[0008] A limiting structure, wherein the limiting structure is provided on the flow guide housing, the limiting structure is located in the flow guide channel, and an upper end surface of the limiting structure and an upper end surface of the flow guide housing corresponding to the insertion end of the flow guide channel have an avoidance spacing;

[0009] The refueling gun is inserted and guided by the guide structure to a position abutting against the limiting structure to limit the insertion stroke of the refueling gun.

[0010] According to a deflector provided by the utility model, the guide structure is a guide boss, and a guide arc surface is provided on a side wall of the guide boss facing the center of the guide channel, and the distance between the guide arc surface and the inner side wall of the guide shell gradually increases from the insertion end of the guide channel to the outlet end of the guide channel.

[0011] According to a flow guider provided by the utility model, a limiting step is provided on a side wall of the limiting structure facing the center of the flow guide channel, and the limiting step is concavely arranged.

[0012] According to a deflector provided by the utility model, the lowest position of the guiding arc surface is aligned with the lowest position of the limiting step.

[0013] According to a deflector provided by the utility model, the limiting structure is a limiting boss, and the limiting boss is arranged along the length direction of the deflector shell, wherein the upper end surface of the limiting boss and the upper end surface of the deflector shell corresponding to the insertion end of the deflector channel have the avoidance spacing, and the lower end surface of the limiting boss extends to the lower end surface of the deflector shell corresponding to the outlet end of the deflector channel.

[0014] According to a flow guide provided by the utility model, there are multiple limiting structures, and the multiple limiting structures are spaced apart and arranged relatively.

[0015] According to a flow deflector provided by the utility model, the guiding structure is located between two adjacent limiting structures.

[0016] According to a flow guide provided by the utility model, the inner diameter of the flow guide channel of the flow guide housing gradually decreases along the first direction from the insertion end to the outlet end thereof.

[0017] The utility model also provides a main cover unit, comprising:

[0018] The above-mentioned deflector;

[0019] A main cover shell is connected to the flow guide shell, and the main cover shell is provided with a main cover channel, and the main cover channel is communicated with the flow guide channel.

[0020] The utility model also provides a capless refueling device, comprising:

[0021] The main cover unit mentioned above;

[0022] A secondary gate unit, the main cover unit is fixedly matched with the secondary gate unit, the secondary gate unit is provided with a secondary gate chamber, and the secondary gate chamber is docked with and communicated with the main cover channel.

[0023] The deflector provided by the utility model adopts the above-mentioned structure. The guiding structure is designed to guide the insertion of the refueling gun, and can guide the refueling gun to the correct position to ensure that it can be accurately inserted into the deflector; and the limiting structure is intended to limit the insertion depth of the refueling gun to ensure that the refueling gun does not directly contact the outlet end of the deflector when inserted, thereby preventing damage to the deflector or the refueling gun, so as to facilitate the diversion of oil and ensure the accuracy and safety of the refueling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a cross-sectional schematic diagram of the deflector provided by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the deflector provided by the utility model from a first perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the deflector provided by the utility model from a second viewing angle;

[0028] Figure 4 It is a structural schematic diagram of the main cover unit provided by the utility model;

[0029] Figure 5 It is a structural schematic diagram of the coverless refueling device provided by the utility model;

[0030] Figure 6 It is a cross-sectional schematic diagram of a capless refueling device provided by the utility model.

[0031] Reference numerals:

[0032] 100, auxiliary gate housing; 110, auxiliary gate chamber; 120, drainage port;

[0033] 200, gate structure; 300, fuel gun guide rail; 310, drainage channel;

[0034] 400, blocking mechanism; 600, main cover shell; 610, main cover channel; 700, flow guide; 710, flow guide channel; 720, guide structure; 721, guide arc surface; 730, limit structure; 731, limit step; 800, valve structure. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are 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.

[0036] Combine the following Figure 1-Figure 6The utility model describes a deflector, a main cover unit and a capless refueling device. The capless refueling device comprises a secondary gate unit and a main cover unit.

[0037] Reference Figures 1 to 6 According to the utility model, a deflector is provided, including a deflector housing 700, a guide structure 720 and a limiting structure 730. The deflector housing 700 is provided with a deflector channel 710, which is used for inserting a refueling gun and guiding oil. The guide structure 720 is arranged on the deflector housing 700, and the guide structure 720 is located in the deflector channel 710. The guide structure 720 is used to guide the insertion of the refueling gun. The limiting structure 730 is arranged on the deflector housing 700, and the limiting structure 730 is located in the deflector channel 710. The upper end surface of the limiting structure 730 and the upper end surface of the insertion end of the deflector housing 700 corresponding to the deflector channel 710 have an avoidance spacing; wherein, the refueling gun is inserted and guided by the guide structure 720 to a position abutting against the limiting structure 730 to limit the insertion stroke of the refueling gun.

[0038] The deflector provided by the utility model adopts the above-mentioned structure. The guide structure 720 is designed to guide the insertion of the refueling gun, and can guide the refueling gun to the correct position to ensure that it can be accurately inserted into the deflector; and the limiting structure 730 is intended to limit the insertion depth of the refueling gun to ensure that the refueling gun does not directly contact the outlet end of the deflector when inserted, thereby preventing damage to the deflector or the refueling gun, so as to facilitate the diversion of oil and ensure the accuracy and safety of the refueling operation.

[0039] Specifically, refer to Figures 1 to 3 In the embodiment of the utility model, the guide structure 720 is a guide boss, and a guide arc surface 721 is provided on a side wall of the guide boss facing the center of the flow guide channel 710, and the distance between the guide arc surface 721 and the inner side wall of the flow guide housing 700 gradually increases from the insertion end of the flow guide channel 710 to the outlet end of the flow guide channel 710. Through the above arrangement, the role of the guide arc surface 721 is to provide a guiding surface when the fuel gun is inserted, ensuring that the fuel gun can be accurately inserted into the flow guide channel 710; and the distance between the guide arc surface 721 on the guide boss and the inner side wall of the flow guide housing 700 is gradually increased from the insertion end to the outlet end of the flow guide channel 710, in order to gradually relax the restrictions on the insertion angle and position of the fuel gun during the insertion of the fuel gun, ensuring that the fuel gun can be smoothly inserted into the flow guide channel 710.

[0040] It is understandable that, referring to Figures 1 to 3In the embodiment of the utility model, a side wall of the limiting structure 730 facing the center of the flow guide channel 710 is provided with a limiting step 731, and the limiting step 731 is set in a concave shape. When the fueling gun is inserted, it abuts against the limiting step 731, which serves to provide a reference point or structure for limiting the insertion depth, ensuring that the fueling gun is inserted into the correct position of the flow guide channel 710, with a simple structure, stability and reliability.

[0041] Specifically, refer to Figures 1 to 3 In the embodiment of the utility model, the lowest position of the guiding arc surface 721 is aligned with the lowest position of the limiting step 731, which ensures the maximum insertion depth of the refueling gun during insertion, simplifies the operation process, and makes it easier for refueling personnel to understand and master the correct insertion depth during use, reduces the possibility of operational errors, and helps to ensure a good connection between the refueling gun and the guide channel 710 to avoid leakage or other safety hazards.

[0042] Specifically, refer to Figure 2 and Figure 3 In the embodiment of the utility model, the limiting structure 730 is a limiting protrusion integrally formed with the flow guide housing 700, and the limiting protrusion is arranged along the length direction of the flow guide housing 700, wherein the upper end surface of the limiting protrusion and the upper end surface of the flow guide housing 700 corresponding to the insertion end of the flow guide channel 710 have an avoidance spacing, and the lower end surface of the limiting protrusion relative to the flow guide housing 700 extends to the lower end surface of the flow guide housing 700 corresponding to the outlet end of the flow guide channel 710. The setting of the avoidance spacing can provide enough space for the refueling gun, so that it can be smoothly inserted into the flow guide channel 710 without hindrance, ensuring the smooth progress of the refueling operation. Specifically, in the embodiment of the utility model, there are multiple limiting structures 730, and the multiple limiting structures 730 are spaced and arranged relatively to improve the stability of the limiting. Specifically, in the embodiment of the utility model, the guide structure 720 is located between two adjacent limiting structures 730, which further improves the stability of the limiting, can effectively optimize the refueling operation process, and improve the safety and efficiency of the operation. Specifically, in the embodiment of the utility model, the inner diameter of the flow guide housing 700 gradually decreases along the first direction from the insertion end to the outlet end thereof. With the above structure, since the inner diameter of the flow guide housing 700 gradually decreases, the flow of oil inside the flow guide housing 700 will be restricted and guided, thereby improving the flow efficiency of the fluid. Of course, the above-mentioned limiting structure 730 can also be detachably mounted on the flow guide housing 700, which is not limited here.

[0043] Specifically, refer to Figures 1 to 3 In the embodiment of the utility model, a plurality of limiting structures 730 are spaced apart and arranged relatively to each other, which helps to balance the force and maintain the overall stability of the structure, and facilitates the manufacture of the deflector.

[0044] Specifically, refer to Figures 1 to 3In the embodiment of the utility model, the guide structure 720 is located between two adjacent limiting structures 730, further improving the overall stability.

[0045] Specifically, referring to Figures and Figures, in the embodiment of the utility model, the inner diameter of the flow guide channel 710 of the flow guide housing 700 gradually decreases along the first direction from its insertion end to the outlet end. The larger inlet opening can facilitate the insertion of the head of the fueling gun, especially at the beginning of the insertion, and the larger opening can reduce the requirements for the alignment accuracy of the fueling gun, making it easier for the operator to correctly insert the fueling gun into the flow guide channel 710 of the flow guide housing 700.

[0046] It should be noted that, refer to Figure 4 and Figure 6 In an embodiment of the utility model, the main cover unit includes the above-mentioned deflector and a main cover shell 600, the main cover shell 600 is connected to the deflector shell 700, the main cover shell 600 is provided with a main cover channel 610, the main cover channel 610 is connected with the deflector channel 710 to form a main cover chamber, wherein the main cover shell 600 is provided with a valve structure 800 for opening or closing the main cover channel 610.

[0047] It should also be noted that, in the embodiment of the present utility model, the main cover unit is fixedly matched with the auxiliary gate unit, and the auxiliary gate unit is provided with an auxiliary gate chamber 110 , which is docked with and communicated with the main cover channel 610 .

[0048] Specifically, refer to Figure 5 and Figure 6In the embodiment of the utility model, the auxiliary gate unit includes an auxiliary gate housing 100, a gate structure 200 and a refueling gun guide rail 300. The auxiliary gate housing 100 is provided with an auxiliary gate chamber 110. The two opposite ends of the auxiliary gate chamber 110 are respectively a first inlet and a first outlet. The auxiliary gate chamber 110 is used for inserting a refueling gun; the gate structure 200 is used to open or close the first inlet. The gate structure 200 is used to open or close the first inlet. The gate structure 200 is fixedly arranged inside the auxiliary gate chamber 110. Part of the gate structure 200 is fixedly matched with the auxiliary gate housing 100; the refueling gun guide rail 300 is used to guide the refueling gun to move. The refueling gun guide rail 300 is fixedly arranged on the auxiliary gate. Inside the door chamber 110, the fueling gun guide rail 300 is located on one side of the gate structure 200, and part of the structure of the fueling gun guide rail 300 is fixedly matched with the auxiliary gate housing 100; in a first direction, one end of the gate structure 200 abuts against an inner wall at one end of the auxiliary gate chamber 110, and the other end of the gate structure 200 abuts against one end of the fueling gun guide rail 300; wherein, when the gate structure 200 is subjected to the pushing force of the fueling gun, the first inlet is opened, and the opening direction of the gate structure 200 is toward the location of the first outlet; after the gate structure 200 is out of contact with the fueling gun, the first inlet is closed, and the closing direction of the gate structure 200 is toward the location of the first inlet.

[0049] Through the above structure, there is no need to unscrew the auxiliary gate unit when refueling, and the refueling gun can be directly inserted, and the gate structure 200 is pushed by the refueling gun to open the first inlet, so that the refueling gun can be inserted into the auxiliary gate chamber 110, the gate structure 200 and the refueling gun guide rail 300 to realize the refueling operation. Through the above structure, the operation of opening and closing the fuel filler cap is omitted when refueling, and the first inlet can only be opened when the gate structure 200 is subjected to the push force of the fuel gun, and the door opening direction is toward the position of the first outlet; the first inlet can only be closed after the gate structure 200 is out of contact with the fuel gun, and the door closing direction is toward the position of the first inlet. The above gate structure 200 is a single-door structure to prevent water and dust from entering, and can ensure that the door is tightly closed in the non-refueling state, thereby achieving waterproof and dustproof, saving time and effort, and avoiding the situation of leaking; at the same time, when the fuel gun is inserted, the auxiliary gate chamber 110, the gate structure 200 and the fuel gun guide rail 300 are sequentially abutted and matched, thereby improving the stability of the gate structure 200, thereby improving the stability and reliability of the entire auxiliary gate unit.

[0050] It is understandable that, referring to Figure 5 and Figure 6In an embodiment of the utility model, the auxiliary gate housing 100 is provided with a drain port 120, and the refueling gun guide rail 300 is provided with a drain channel 310 connected to the drain port 120; the auxiliary gate unit also includes a blocking mechanism 400, which is provided on the refueling gun guide rail 300, and the blocking mechanism 400 has a blocking state and an open state; wherein the blocking mechanism 400 in the open state can open the drain channel 310; the blocking mechanism 400 can switch from the open state to the blocking state under the action of an external force to block the drain channel 310. Through the specially designed drain port 120 and drain channel 310, a small amount of water flowing in from the gap between the auxiliary gate housing 100 and the gate structure 200 can be discharged from the drain port 120, avoiding the decrease in the sealing performance of the auxiliary gate unit and the partial damage of the main cover unit caused by the insertion of the refueling gun after freezing; and because there are certain sealing requirements for the auxiliary gate unit and the entire refueling device during refueling, a sealing mechanism 400 is provided to seal the drain channel 310 and the drain port 120, so as to achieve sealed refueling while also being able to cope with steam reflux type refueling guns.

[0051] It can be understood that in the embodiment of the utility model, the overall assembly process of the above-mentioned refueling device is as follows: during installation, the main cover unit and the auxiliary gate unit are both installed at the refueling port of the car, the auxiliary gate unit cover is arranged on part of the structure of the main cover unit, the main cover unit is inserted into the refueling pipe of the fuel tank, and the auxiliary gate unit cover is installed on the body of the car.

[0052] It should be noted that a guide groove is provided in the auxiliary gate chamber 110 of the auxiliary gate shell 100 of the above-mentioned auxiliary gate unit, and a guide protrusion is provided in the main cover shell 600 of the main cover unit, which cooperates with the guide groove to assemble the auxiliary gate shell 100 and the main cover shell 600.

[0053] It can be understood that in the embodiment of the utility model, the use process of the above-mentioned refueling device is as follows: the refueling gun pushes the gate structure 200 to open the first inlet, the refueling gun passes through the gate structure 200 and the refueling gun guide rail 300 in sequence, then, the refueling gun pushes the valve structure 800 to open the second inlet, the refueling gun is inserted into the main cover channel 610 of the main cover shell 600 and the guide channel 710 of the guide device, and refueling is then carried out through the cooperation of the guide structure 720 and the limiting structure 730.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A flow guide, characterized in that: include: A flow guide housing (700), wherein the flow guide housing (700) is provided with a flow guide channel (710), wherein the flow guide channel (710) is used for inserting a refueling gun and guiding oil; A guide structure (720) is provided on the flow guide housing (700), the guide structure (720) is located in the flow guide channel (710), and the guide structure (720) is used to guide the insertion of the refueling gun; a limiting structure (730), the limiting structure (730) being arranged on the flow guide housing (700), the limiting structure (730) being located in the flow guide channel (710), and an upper end surface of the limiting structure (730) and an upper end surface of the flow guide housing (700) corresponding to an insertion end of the flow guide channel (710) having an avoidance spacing; The refueling gun is inserted and guided by the guide structure (720) to a position where it abuts against the limiting structure (730) to limit the insertion stroke of the refueling gun.

2. The deflector according to claim 1, characterized in that: The guide structure (720) is a guide boss, and a guide arc surface (721) is provided on a side wall of the guide boss facing the center of the guide channel (710), and the distance between the guide arc surface (721) and the inner side wall of the guide housing (700) gradually increases from the insertion end of the guide channel (710) to the outlet end of the guide channel (710).

3. The deflector according to claim 2, characterized in that: A side wall of the limiting structure (730) facing the center of the guide channel (710) is provided with a limiting step (731), and the limiting step (731) is arranged in a concave shape.

4. The deflector according to claim 3, characterized in that: The lowest position of the guiding arc surface (721) is aligned with the lowest position of the limiting step (731).

5. The deflector according to claim 4, characterized in that: The limiting structure (730) is a limiting boss, and the limiting boss is arranged along the length direction of the guide shell (700), wherein the upper end surface of the limiting boss and the upper end surface of the guide shell (700) corresponding to the insertion end of the guide channel (710) have the avoidance spacing, and the lower end surface of the limiting boss extends to the lower end surface of the guide shell (700) corresponding to the outlet end of the guide channel (710).

6. The deflector according to claim 1, characterized in that: There are a plurality of the limiting structures (730), and the plurality of limiting structures (730) are spaced apart and arranged relative to each other.

7. The deflector according to claim 6, characterized in that: The guiding structure (720) is located between two adjacent limiting structures (730).

8. The deflector according to claim 1, characterized in that: The inner diameter of the flow guiding channel (710) of the flow guiding housing (700) gradually decreases along a first direction from its insertion end to its outlet end.

9. A main cover unit, characterized in that: include: The deflector according to any one of claims 1 to 8; A main cover shell (600), the main cover shell (600) is connected to the flow guide shell (700), the main cover shell (600) is provided with a main cover channel (610), and the main cover channel (610) is communicated with the flow guide channel (710).

10. A capless refueling device, characterized in that: include: The main cover unit as claimed in claim 9; A secondary gate unit, the main cover unit and the secondary gate unit are fixedly matched, the secondary gate unit is provided with a secondary gate chamber (110), and the secondary gate chamber (110) is docked with and communicated with the main cover channel (610).

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