Oil tank exhaust connector capable of controlling oil filling amount

Abstract

The utility model discloses an oil tank exhaust connector capable of controlling oil filling amount, and relates to the technical field of oil tank exhaust connectors. The oil tank exhaust connector capable of controlling the oil filling amount comprises a connector body, a first cavity is formed in the upper surface of the connector body, a second cavity is formed in the bottom wall of the first cavity, threads are formed in the inner wall of the first cavity, a connecting cover is arranged on the upper side surface of the connector body, and a mounting ring is fixedly connected to the lower side surface of the connecting cover; the outer surface of the mounting ring is matched with the threads, a filtering assembly is arranged on the bottom wall of the first cavity, a through groove extending out of the lower surface of the filtering assembly is formed in the upper surface of the filtering assembly, an L-shaped through groove extending into the connector is formed in the upper surface of the connector, a fixing pressing plate is arranged on the upper surface of the filtering assembly, and a Z-shaped rod is fixedly connected to the upper side surface of the fixing pressing plate; according to the filter assembly, when the filter assembly is seriously blocked or damaged, the filter assembly can be conveniently replaced by rotating the connecting cover, and the maintenance cost is effectively reduced compared with overall replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank exhaust joints, in particular to an oil tank exhaust joint for controlling the refueling amount. Background Art

[0002] The fuel tank exhaust joint is an important component of the automobile fuel tank system. Its main function is to ensure that the air in the fuel tank can be discharged smoothly, while preventing external impurities and moisture from entering the fuel tank.

[0003] Since an exhaust joint is needed to achieve the exchange of internal and external air to maintain the air pressure balance inside and outside the fuel tank, and a filter component is also needed to filter impurities and moisture in the air, it is necessary to regularly check whether the exhaust joint is blocked or damaged in actual use to ensure normal operation. However, since the existing exhaust joints and internal filter components are mostly fixed, the exhaust joint needs to be replaced as a whole when serious blockage occurs or the filter component is damaged, which increases the overall use cost of the exhaust joint. In view of this, we propose a fuel tank exhaust joint that controls the refueling amount. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a fuel tank exhaust joint for controlling the refueling amount, which can solve the problem that the filter assembly is seriously blocked or damaged and cannot be replaced separately.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel tank exhaust joint for controlling the refueling amount, comprising a joint, the upper surface of the joint is provided with a first cavity, the bottom wall of the first cavity is provided with a second cavity, the inner wall of the first cavity is provided with a thread, the upper side surface of the joint is provided with a connecting cover, the lower side surface of the connecting cover is fixedly connected with a mounting ring, the outer surface of the mounting ring is adapted to the thread, the bottom wall of the first cavity is provided with a filter assembly, the upper surface of the filter assembly is provided with a through groove extending from its lower surface, the upper surface of the joint is provided with an L-shaped through groove extending into its interior, the upper surface of the filter assembly is provided with a fixed pressure plate, the upper side surface of the fixed pressure plate is fixedly connected with a Z-shaped rod, the upper end of the Z-shaped rod extends out of the upper side surface of the joint through the L-shaped through groove, and a fixing assembly is provided on the Z-shaped rod.

[0006] Preferably, the fixing assembly includes a second fixing plate, which is fixedly connected to the upper end of the Z-shaped rod, and a receiving groove is provided on the upper side surface of the joint.

[0007] Preferably, the receiving groove is matched with the second fixed pressing plate, and a rotation groove is provided on the lower surface of the connecting cover.

[0008] Preferably, a ball is movably connected to the top wall of the rotating groove, and a pressure plate is rotatably connected to the inner wall of the rotating groove.

[0009] Preferably, an extension cavity extending out of a lower surface of the connection cover is formed on the upper surface of the connection cover.

[0010] Preferably, a through pipe is fixedly connected to the lower surface of the joint.

[0011] Preferably, an exhaust pipe is fixedly connected to the outer surface of the joint.

[0012] Preferably, an arc-shaped baffle is sleeved on the outer surface of the Z-shaped rod 11, and the arc-shaped baffle is slidably connected to the inner wall of the first cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) When the filter assembly is seriously clogged or damaged, the connecting cover is rotated to synchronously drive the mounting ring to rotate. After the mounting ring rotates, the mating thread gradually moves upward. After the connecting cover moves, the restriction on the Z-shaped rod is released. At this time, the Z-shaped rod can be vertically displaced inside the L-shaped through groove. The filter assembly is rotated to align the through groove with the Z-shaped rod, so that the filter assembly can be pulled out. With the above structure, when the filter assembly is seriously clogged or damaged, it can be replaced more conveniently by turning off the connecting cover, which effectively reduces the maintenance cost compared with the overall replacement.

[0015] (2) The fuel tank exhaust joint for controlling the refueling amount will synchronously drive the pressure plate to move when the connecting cover rises. After the pressure plate moves, it stops contacting with the second fixed pressure plate. At this time, the second fixed pressure plate can actually limit the vertical movement. After the replacement is completed, the connecting cover is reinstalled. When the connecting cover descends, the second fixed pressure plate is again restricted by the pressure plate, thereby limiting the movement of the filter assembly. Through the above structure, the rotatable pressure plate can be used during reinstallation, so that the pressure plate will no longer rotate after contacting the second fixed pressure plate, thereby avoiding friction damage. At the same time, the friction between the pressure plate and the rotating groove is reduced by means of a ball bearing, and a through pipe arranged horizontally with the liquid in the fuel tank is used to shorten the time from the liquid surface contacting to the opening submerging the end during refueling, and the oil volume corresponding to the time from the liquid surface contacting to the opening submerging the end is small, thereby improving the accuracy of refueling amount control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of a fuel tank exhaust joint for controlling the refueling amount according to the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the rotating groove of the utility model;

[0020] Figure 4 It is a schematic diagram of the Z-shaped rod of the utility model.

[0021] Figure numerals: 1. connector; 2. first cavity; 3. second cavity; 4. thread; 5. connecting cover; 6. mounting ring; 7. filter assembly; 8. through groove; 9. L-shaped through groove; 10. fixed pressure plate; 11. Z-shaped rod; 12. second fixed pressure plate; 13. storage groove; 14. rotating groove; 15. ball bearing; 16. pressure plate; 17. extension cavity; 18. through pipe; 19. exhaust pipe; 20. arc-shaped baffle. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a fuel tank exhaust joint for controlling the amount of refueling, comprising a joint 1, a first cavity 2 is provided on the upper surface of the joint 1, a second cavity 3 is provided on the bottom wall of the first cavity 2, a thread 4 is provided on the inner wall of the first cavity 2, a connecting cover 5 is provided on the upper side surface of the joint 1, a mounting ring 6 is fixedly connected to the lower side surface of the connecting cover 5, and the outer surface of the mounting ring 6 is adapted to the thread 4, a filter assembly 7 is provided on the bottom wall of the first cavity 2, a through groove 8 extending from the lower surface of the filter assembly 7 is provided on the upper surface of the filter assembly 7, an L-shaped through groove 9 extending into the interior thereof is provided on the upper surface of the joint 1, a fixed pressing plate 10 is provided on the upper surface of the filter assembly 7, a Z-shaped rod 11 is fixedly connected to the upper side surface of the fixed pressing plate 10, and the upper end of the Z-shaped rod 11 extends out of the connection through the L-shaped through groove 9 On the upper surface of the head 1, a fixing component is arranged on the Z-shaped rod 11. The filter assembly 7 described in the text is an existing structure and will not be described in detail. When the filter assembly 7 is seriously blocked or damaged, the connecting cover 5 is rotated to synchronously drive the mounting ring 6 to rotate. After the mounting ring 6 is rotated, the mating thread 4 gradually moves upward. After the connecting cover 5 moves, the restriction on the Z-shaped rod 11 is released. At this time, the Z-shaped rod 11 can be displaced in the vertical direction inside the L-shaped through groove 9. By rotating the filter assembly 7 so that the through groove 8 and the Z-shaped rod 11 are aligned, the filter assembly 7 can be pulled out. Through the above structure, when the filter assembly 7 is seriously blocked or damaged, it can be replaced more conveniently by unscrewing the connecting cover 5, which effectively reduces the maintenance cost compared with the overall replacement.

[0024] Furthermore, the fixing assembly includes a second fixed pressure plate 12, which is fixedly connected to the upper end of the Z-shaped rod 11, a receiving groove 13 is provided on the upper side surface of the joint 1, and the receiving groove 13 is adapted to the second fixed pressure plate 12, a rotating groove 14 is provided on the lower side surface of the connecting cover 5, a ball 15 is movably connected to the top wall of the rotating groove 14, a pressure plate 16 is rotatably connected to the inner wall of the rotating groove 14, an extension cavity 17 extending from its lower surface is provided on the upper side surface of the connecting cover 5, a through pipe 18 is fixedly connected to the lower side surface of the joint 1, an exhaust pipe 19 is fixedly connected to the outer surface of the joint 1, an arc-shaped baffle 20 is sleeved on the outer surface of the Z-shaped rod 11, and the arc-shaped baffle 20 is slidably connected to the inner wall of the first cavity 2, the through pipe 18 described in the text is parallel to the liquid level in the oil tank, and when the connecting cover 5 rises, it will synchronously drive the pressure plate 16 to move, and the pressure plate After the movement, 16 stops contacting with the second fixed pressure plate 12. At this time, the second fixed pressure plate 12 is indeed restricted and can move in the vertical direction. After the replacement is completed, the connecting cover 5 is reinstalled. When the connecting cover 5 is lowered, the second fixed pressure plate 12 is restricted again with the help of the pressure plate 16, thereby restricting the movement of the filter assembly 7. Through the above structure, the rotatable pressure plate 16 can be used during reinstallation, so that the pressure plate 16 will no longer rotate after contacting the second fixed pressure plate 12, thereby avoiding friction damage. At the same time, the friction between the pressure plate 16 and the rotating groove 14 is reduced with the help of the ball 15, and the through pipe 18 arranged horizontally with the liquid in the oil tank is used to shorten the time from the liquid surface contacting to the opening submerging the end during refueling, and the oil volume corresponding to the opening contacting to the end submerging the end changes little, thereby achieving the improvement of the accuracy of refueling volume control.

[0025] Working principle: When the filter assembly 7 is seriously blocked or damaged, the connecting cover 5 is rotated to synchronously drive the mounting ring 6 to rotate. After the mounting ring 6 rotates, the mating thread 4 gradually moves upward. After the connecting cover 5 moves, the restriction on the Z-shaped rod 11 is released. At this time, the Z-shaped rod 11 can be vertically displaced inside the L-shaped through groove 9. By rotating the filter assembly 7 so that the through groove 8 and the Z-shaped rod 11 are aligned, the filter assembly 7 can be pulled out. When the connecting cover 5 rises, it will synchronously drive the pressure plate 16 to move. After the pressure plate 16 moves, it stops contacting with the second fixed pressure plate 12. At this time, the second fixed pressure plate 12 can effectively restrict the vertical movement. After the replacement is completed, the connecting cover 5 is reinstalled. When the connecting cover 5 descends, the second fixed pressure plate 12 is restricted again with the help of the pressure plate 16, thereby restricting the movement of the filter assembly 7.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A fuel tank venting connector for controlling the amount of refueling, comprising a connector (1), characterized in that: The upper surface of the joint (1) is provided with a first cavity (2), the bottom wall of the first cavity (2) is provided with a second cavity (3), the inner wall of the first cavity (2) is provided with a thread (4), the upper surface of the joint (1) is provided with a connection cover (5), the lower surface of the connection cover (5) is fixedly connected with a mounting ring (6), the outer surface of the mounting ring (6) is adapted to the thread (4), the bottom wall of the first cavity (2) is provided with a filter assembly (7), and the filter assembly ( The upper surface of the filter assembly (7) is provided with a through groove (8) extending from the lower surface thereof, the upper surface of the connector (1) is provided with an L-shaped through groove (9) extending into the interior thereof, the upper surface of the filter assembly (7) is provided with a fixed pressing plate (10), the upper side surface of the fixed pressing plate (10) is fixedly connected with a Z-shaped rod (11), the upper end of the Z-shaped rod (11) extends from the upper side surface of the connector (1) through the L-shaped through groove (9), and a fixing assembly is provided on the Z-shaped rod (11).

2. A fuel tank venting connector for controlling refueling amount according to claim 1, characterized in that: The fixing assembly comprises a second fixing plate (12), the second fixing plate (12) being fixedly connected to the upper end of the Z-shaped rod (11), and a receiving groove (13) is provided on the upper side surface of the joint (1).

3. The fuel tank venting connector for controlling the refueling amount according to claim 2, characterized in that: The receiving groove (13) is matched with the second fixed pressing plate (12), and a rotation groove (14) is provided on the lower surface of the connecting cover (5).

4. A fuel tank venting joint for controlling the refueling amount according to claim 3, characterized in that: A ball (15) is movably connected to the top wall of the rotating groove (14), and a pressure plate (16) is rotatably connected to the inner wall of the rotating groove (14).

5. The fuel tank venting connector for controlling the refueling amount according to claim 1, characterized in that: The upper surface of the connection cover (5) is provided with an extension cavity (17) extending out of the lower surface thereof.

6. The fuel tank venting connector for controlling the refueling amount according to claim 1, characterized in that: A through pipe (18) is fixedly connected to the lower surface of the joint (1).

7. The fuel tank venting connector for controlling the refueling amount according to claim 1, characterized in that: An exhaust pipe (19) is fixedly connected to the outer surface of the joint (1).

8. The fuel tank venting connector for controlling the refueling amount according to claim 2, characterized in that: The outer surface of the Z-shaped rod (11) is sleeved with an arc-shaped baffle (20), and the arc-shaped baffle (20) is slidably connected to the inner wall of the first cavity (2).

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