Self-closing oil outlet nozzle of oil drum

Abstract

The utility model relates to the technical field of oil outlet nozzles, in particular to an oil drum self-closing oil outlet nozzle which comprises an inner push-out oil pipe. The device further comprises an outer fixing sleeve, a fixing plate, a tough plate, a locking plate, a first air return hole and a second air return hole. The upper end of the periphery of the inner push-out oil pipe is sleeved with the outer fixing sleeve. The locking plate is pulled to be far away from the outer fixing sleeve, when oil is poured, the oil enters the inner push-out oil pipe, the inner push-out oil pipe is pushed to move in the direction of the closing piston through the pressure of the inflow oil, and at the moment, the locking plate slides along the outer wall of the outer fixing sleeve; when the piston is closed, the inner push-out oil pipe is pushed to reset, after the inner push-out oil pipe is reset, the locking plate is driven to move towards the inner push-out oil pipe through the characteristics of the tough plate till the locking plate is located at the bottom of the outer fixing sleeve, the position of the inner push-out oil pipe is fixed through mutual abutting of the locking plate and the outer fixing sleeve, and the locking function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of oil nozzle technology, and in particular to a self-closing oil nozzle for oil drums. Background Technology

[0002] When pouring oil from the oil drum outlet, the oil tends to flow along the drum wall, leading to waste and hygiene problems. Long-term accumulation can breed bacteria and affect the quality of the oil. Secondly, early oil outlets were mostly non-sealed structures, which are easily contaminated by prolonged contact with the outside environment, and may even cause the entire drum of oil to deteriorate. Therefore, it is necessary to install an oil nozzle on the oil outlet.

[0003] Common self-closing oil nozzles for oil drums only have a self-opening and self-closing function. They can open the nozzle when pouring oil and automatically close it when standing still. However, they lack a locking function and cannot guarantee the sealing of the nozzle. This can easily lead to the spring component failing after long-term use, which may cause the spring component to fail to fully push the piston down to its reset position, thus affecting the sealing of the nozzle.

[0004] Therefore, given that the aforementioned self-closing oil outlet nozzle for oil drums lacks a locking function, and is prone to piston repositioning obstructed due to fatigue failure of elastic elements during long-term use, resulting in decreased dynamic sealing effect and potential oil nozzle leakage, there is an urgent need to design a new type of self-closing oil outlet nozzle for oil drums. Utility Model Content

[0005] To overcome the common problem of self-closing oil nozzles on oil drums lacking a locking function, which can easily lead to piston repositioning obstruction due to fatigue failure of elastic elements during long-term use, resulting in reduced dynamic sealing effect and potential oil nozzle leakage.

[0006] The technical solution of this utility model is as follows: an oil drum self-closing oil outlet, including an inner push-out oil pipe; it also includes an outer fixing sleeve, a fixing plate, a flexible plate, a locking plate, a first vent hole and a second vent hole. The upper part of the inner push-out oil pipe is fitted with an outer fixing sleeve, the lower part of the inner push-out oil pipe is provided with a fixing plate, the top of the fixing plate is provided with a flexible plate, the top of the flexible plate is provided with a locking plate, the bottom side of the inner push-out oil pipe is provided with a first vent hole, and the top side of the inner push-out oil pipe is provided with a second vent hole corresponding to the position of the first vent hole.

[0007] Preferably, by pulling the locking plate away from the outer fixed sleeve, oil enters the interior of the inner ejection oil pipe during pouring. The pressure of the flowing oil pushes the inner ejection oil pipe towards the closing piston. At this time, the locking plate slides along the outer wall of the outer fixed sleeve. When the spring pushes the closing piston to reset, the closing piston pushes the inner ejection oil pipe to reset. After the inner ejection oil pipe resets, the characteristics of the flexible plate drive the locking plate to move towards the inner ejection oil pipe until the locking plate is located at the bottom of the outer fixed sleeve. The position of the inner ejection oil pipe is fixed by the mutual abutment between the locking plate and the outer fixed sleeve, thus realizing the locking function. This solves the problem of common self-closing oil nozzles on oil drums, which only have the function of self-opening and closing. They can open the nozzle when pouring oil and automatically close the nozzle when standing still, but lack the locking function. They cannot guarantee the sealing of the oil nozzle and are prone to spring failure after long-term use, which will cause the spring to fail to push the piston down to reset completely, affecting the sealing of the oil nozzle.

[0008] Preferably, the outer fixing sleeve is fitted with a limit ring, the top of the outer fixing sleeve is welded with a head cover, and the upper part of the outer fixing sleeve is provided with several oil outlet grooves at equal intervals.

[0009] Preferably, the lower end of the outer fixed sleeve is provided with a sliding groove, and the upper end of the inner push-out oil pipe is fitted with a fixing ring corresponding to the position of the sliding groove.

[0010] Preferably, a sliding block is provided around the fixed ring at the position corresponding to the sliding groove, and the sliding block is inserted into the sliding groove.

[0011] Preferably, a closing piston is slidably arranged inside the outer fixing sleeve, and a first O-ring is fitted around the lower end of the closing piston. A spring is provided at the bottom of the head cover corresponding to the position of the closing piston, and the bottom end of the spring is connected to the closing piston.

[0012] Preferably, the outer fixing sleeve is threaded with a nut corresponding to the position of the limiting ring, and the top of the nut is toothed.

[0013] Preferably, a backstop washer is fitted around the outer fixed sleeve at the position corresponding to the nut, the bottom of the backstop washer engaging with the teeth, and a second O-ring is fitted around the upper end of the inner push-out oil pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. By manually pulling the locking plate to disengage it from the outer fixed sleeve, during the oil pouring process, the oil enters the inner ejection oil pipe. Its fluid pressure drives the inner ejection oil pipe to move towards the closing piston. At this time, the locking plate slides synchronously along the outer wall of the outer fixed sleeve. When the spring drives the closing piston to reset, the closing piston pushes the inner ejection oil pipe back to its original position. During the reset process of the inner ejection oil pipe, the deformation recovery characteristics of the ductile plate pull the locking plate to move closer to the inner ejection oil pipe until the locking plate is completely against the bottom of the outer fixed sleeve. The rigid contact between the locking plate and the outer fixed sleeve constrains the axial degree of freedom of the inner ejection oil pipe, thus realizing the full closed-loop control of the oil nozzle locking function. Attached Figure Description

[0016] Figure 1 The diagram shown is a front view of the overall structure of the self-closing oil outlet of the oil drum according to this utility model.

[0017] Figure 2 The diagram shown is a cross-sectional view of the self-closing oil outlet of the oil drum according to this utility model.

[0018] Figure 3 The diagram shown is a schematic of the oil pipe extending from the self-closing oil outlet of the oil drum according to this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the outer fixing sleeve structure of the self-closing oil outlet of this utility model.

[0020] Figure 5 The diagram shown is a schematic diagram of the self-closing oil outlet piston structure of the oil drum according to this utility model.

[0021] Figure 6 The diagram shown is a schematic of the structure of the self-closing oil outlet nut of the oil drum according to this utility model.

[0022] Explanation of reference numerals in the attached diagram: 1. Inner push-out oil pipe; 2. Outer fixing sleeve; 3. Fixing plate; 4. Tough plate; 5. Locking plate; 6. First vent hole; 7. Second vent hole; 8. Limiting ring; 9. Head cover; 10. Oil outlet groove; 11. Sliding groove; 12. Fixing ring; 13. Sliding block; 14. Closing piston; 15. First O-ring seal; 16. Spring; 17. Nut; 18. Tooth; 19. Anti-reverse washer; 20. Second O-ring seal. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-6This utility model provides an embodiment of a self-closing oil outlet for an oil drum, including an inner push-out oil pipe 1; it also includes an outer fixing sleeve 2, a fixing plate 3, a flexible plate 4, a locking plate 5, a first vent hole 6, and a second vent hole 7. The upper part of the inner push-out oil pipe 1 is fitted with the outer fixing sleeve 2, the lower part of the inner push-out oil pipe 1 is provided with the fixing plate 3, the top of the fixing plate 3 is provided with the flexible plate 4, the top of the flexible plate 4 is provided with the locking plate 5, the bottom side of the inner push-out oil pipe 1 is provided with the first vent hole 6, and the top side of the inner push-out oil pipe 1 is provided with the second vent hole 7 corresponding to the position of the first vent hole 6. By pulling the locking plate 5 away from the outer fixing sleeve 2, the oil can be opened. When oil is poured, the fixed sleeve 2 allows oil to enter the interior of the inner ejection oil pipe 1. The pressure of the flowing oil pushes the inner ejection oil pipe 1 towards the closing piston 14. At this time, the locking plate 5 slides along the outer wall of the outer fixed sleeve 2. When the spring 16 pushes the closing piston 14 to reset, the closing piston 14 pushes the inner ejection oil pipe 1 to reset. After the inner ejection oil pipe 1 is reset, the characteristics of the flexible plate 4 drive the locking plate 5 to move towards the inner ejection oil pipe 1 until the locking plate 5 is located at the bottom of the outer fixed sleeve 2. The locking plate 5 and the outer fixed sleeve 2 abut against each other to fix the position of the inner ejection oil pipe 1, thus achieving the locking function.

[0025] Please see Figures 2-6 In this embodiment, a limiting ring 8 is fitted around the outer fixing sleeve 2, a head cover 9 is welded to the top of the outer fixing sleeve 2, and several oil outlet grooves 10 are evenly spaced on the upper part of the outer fixing sleeve 2. The oil flowing into the outer fixing sleeve 2 will flow out from the oil outlet grooves 10. A sliding groove 11 is provided at the lower part of the outer fixing sleeve 2. A fixing ring 12 is fitted on the upper part of the inner push-out oil pipe 1 at the position corresponding to the sliding groove 11. The fixing ring 12 fixes the position of the sliding block 13. A sliding block 13 is provided on the periphery of the fixing ring 12 at the position corresponding to the sliding groove 11. The sliding block 13 is inserted into the interior of the sliding groove 11. While the inner push-out oil pipe 1 moves towards the closing piston 14, the sliding block 13 slides along the sliding groove 11.

[0026] Please see Figures 1-6In this embodiment, a closing piston 14 is slidably disposed inside the outer fixing sleeve 2. A first O-ring seal 15 is fitted around the lower end of the closing piston 14. A spring 16 is disposed at the bottom of the head cover 9 corresponding to the position of the closing piston 14. The bottom end of the spring 16 is connected to the closing piston 14. The closing piston 14 is pushed downward by the spring 16 until the closing piston 14 is reset. A nut 17 is threadedly connected around the outer fixing sleeve 2 corresponding to the position of the limiting ring 8. The top of the nut 17 has teeth 18. The nut 17 is threadedly connected to the outer fixing sleeve 2. The limiting ring 8 limits the position of the nut 17. A backstop pad 19 is fitted around the outer fixing sleeve 2 corresponding to the position of the nut 17. The bottom of the backstop pad 19 engages with the teeth 18. A second O-ring seal 20 is fitted around the upper end of the inner push-out oil pipe 1. The meshing teeth at the bottom of the backstop pad 19 engage with the teeth 18 to prevent the nut 17 from loosening during use.

[0027] During operation, the oil is poured out using a hand-held oil drum. At this time, the locking plate 5 is manually pulled to disengage it from the outer fixed sleeve 2. During the pouring process, the oil enters the inner ejection pipe 1, and its fluid pressure drives the inner ejection pipe 1 to move towards the closing piston 14. Simultaneously, the locking plate 5 slides along the outer wall of the outer fixed sleeve 2. The inner ejection pipe 1 pushes the closing piston 14 towards the head cover 9, and the spring 16 is compressed by the closing piston 14. At this point, the oil in the inner ejection pipe 1 flows into the interior of the outer fixed sleeve 2. Finally, the oil flows out through the oil outlet 10. After the oil is poured out, the oil drum is placed upright on the ground. At this time, the spring 16 drives the closing piston 14 to reset. The closing piston 14 pushes the inner push-out oil pipe 1 back to its original position in the opposite direction. During the reset process of the inner push-out oil pipe 1, the deformation recovery characteristics of the tough plate 4 pull the locking plate 5 to move closer to the inner push-out oil pipe 1 until the locking plate 5 completely abuts against the bottom of the outer fixed sleeve 2. The rigid contact between the locking plate 5 and the outer fixed sleeve 2 constrains the axial degree of freedom of the inner push-out oil pipe 1, and finally realizes the function of locking the oil nozzle.

[0028] Through the above steps, by pulling the locking plate 5 away from the outer fixed sleeve 2, when pouring oil, the oil enters the interior of the inner push-out oil pipe 1. The pressure of the flowing oil pushes the inner push-out oil pipe 1 towards the closing piston 14. At this time, the locking plate 5 slides along the outer wall of the outer fixed sleeve 2. When the spring 16 pushes the closing piston 14 to reset, the closing piston 14 pushes the inner push-out oil pipe 1 to reset. After the inner push-out oil pipe 1 is reset, the characteristics of the flexible plate 4 drive the locking plate 5 to move towards the inner push-out oil pipe 1 until the locking plate 5 is located at the bottom of the outer fixed sleeve 2. The position of the inner push-out oil pipe 1 is fixed by the mutual abutment between the locking plate 5 and the outer fixed sleeve 2, thus realizing the locking function. This solves the problem of common self-closing oil nozzles in oil drums, which only have the function of self-opening and closing. They can open the nozzle when pouring oil and automatically close the nozzle when standing still, but lack the locking function. They cannot guarantee the sealing of the oil nozzle and are prone to failure of the spring 16 after long-term use, which will cause the spring 16 to fail to push the piston down to reset completely, affecting the sealing of the oil nozzle.

Claims

1. An oil drum self-closing oil outlet, comprising an internally extending oil pipe (1); characterized in that: It also includes an outer fixing sleeve (2), a fixing plate (3), a toughness plate (4), a locking plate (5), a first vent hole (6) and a second vent hole (7). The upper part of the inner push-out oil pipe (1) is fitted with an outer fixing sleeve (2), the lower part of the inner push-out oil pipe (1) is provided with a fixing plate (3), the top of the fixing plate (3) is provided with a toughness plate (4), the top of the toughness plate (4) is provided with a locking plate (5), the bottom side of the inner push-out oil pipe (1) is provided with a first vent hole (6), and the top side of the inner push-out oil pipe (1) is provided with a second vent hole (7) corresponding to the position of the first vent hole (6).

2. The self-closing oil outlet of the oil drum according to claim 1, characterized in that: The outer fixing sleeve (2) is fitted with a limit ring (8) around its body, and a head cover (9) is welded to the top of the outer fixing sleeve (2). Several oil outlet grooves (10) are opened at equal intervals on the upper part of the outer fixing sleeve (2).

3. The self-closing oil outlet of the oil drum according to claim 1, characterized in that: The lower end of the outer fixed sleeve (2) is provided with a sliding groove (11), and the upper end of the inner push-out oil pipe (1) is fitted with a fixing ring (12) corresponding to the position of the sliding groove (11).

4. The self-closing oil outlet of the oil drum according to claim 3, characterized in that: A sliding block (13) is provided around the fixed ring (12) at the position corresponding to the sliding groove (11), and the sliding block (13) is inserted into the interior of the sliding groove (11).

5. The self-closing oil outlet of the oil drum according to claim 2, characterized in that: The outer fixing sleeve (2) has a sliding closing piston (14) inside. The lower end of the closing piston (14) is fitted with a first O-ring seal (15). The bottom of the head cover (9) is provided with a spring (16) corresponding to the position of the closing piston (14). The bottom end of the spring (16) is connected to the closing piston (14).

6. The self-closing oil outlet of the oil drum according to claim 5, characterized in that: The outer fixing sleeve (2) is threaded with a nut (17) corresponding to the position of the limiting ring (8), and the top of the nut (17) is provided with teeth (18).

7. The self-closing oil outlet for an oil drum according to claim 6, characterized in that: The outer fixing sleeve (2) is fitted with a backstop washer (19) around the body corresponding to the position of the nut (17). The bottom of the backstop washer (19) engages with the teeth (18). The upper end of the inner push-out oil pipe (1) is fitted with a second O-ring seal (20).

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