Oil outlet nozzle of automobile oil drum

Abstract

The invention relates to the technical field of oil outlet nozzles, in particular to an automobile oil drum oil outlet nozzle which comprises a fixing sleeve, an oil outlet pipe is slidably arranged in the fixing sleeve, a connecting ring is arranged on the outer side of the fixing sleeve, a plug is arranged at the upper end of the fixing sleeve, a piston is slidably arranged in the fixing sleeve, and an oil inlet located between the plug and the piston is formed in the fixing sleeve. A reset spring is arranged between the piston and the plug, a top plate making contact with the piston is arranged on the oil outlet pipe, the upper end of the top plate is higher than the oil outlet pipe, an air inlet piece is arranged on the oil outlet pipe and comprises an air inlet channel arranged in the oil outlet pipe, an air outlet of the air inlet channel extends to the top plate, and an air inlet of the air inlet channel is communicated with the outside of the oil outlet pipe. In the oil pumping process of the oil pumping equipment, when oil in the oil drum runs off, air can enter the air inlet channel from the air inlet, and the air outlet of the air inlet channel extends to the top plate, so that the air in the air inlet channel enters the oil drum to fill the running-off oil.

Description

Technical Field

[0001] This application relates to the technical field of oil nozzles, particularly to the oil nozzle of an automotive oil barrel. Background Art

[0002] An introduction to the oil nozzle of an automotive oil barrel: The oil nozzle of an automotive oil barrel is a device used to safely and conveniently extract fuel from an oil barrel, and it is widely used in various scenarios such as automotive maintenance, agriculture, industry, and outdoor activities.

[0003] In the early days, during the process of automotive maintenance and repair, the addition and extraction of fuel mainly relied on manual pouring or a simple funnel. This method was not only inefficient but also prone to fuel waste and environmental pollution; with the increase in the number of automobiles and the improvement of the requirements for fuel management efficiency, there was an urgent need for a more efficient and safer fuel extraction tool.

[0004] With the increasingly strict environmental protection regulations and the emphasis on operation safety, the traditional manual pouring method has gradually been phased out. The new oil nozzle design needs to meet higher safety standards, reduce the risk of fuel leakage and spillage, and at the same time comply with environmental protection requirements to avoid fuel volatilization and pollution.

[0005] For example, a multifunctional oil barrel oil nozzle with the application number CN202010450644.6. This existing technology includes a tubing nozzle, a mounting lock nut, an oil barrel sealing ring, a body, a knob, and a pressing plate. The knob is installed on the body and fixed by the pressing plate, and it includes a conical blind hole, an oil inlet part, and an oil outlet part. The mounting lock nut is installed on the oil inlet part, and the tubing nozzle is installed on the oil outlet part. The knob includes a rotating handle and a mandrel. The mandrel is a cone and includes a stepped hole. The conical blind hole is designed to cooperate with the cone of the mandrel, and the basic dimensions of the cone angles of the two are the same, and the fitting clearance is not greater than 0.1 mm. The oil inlet part, the oil outlet part, and the stepped hole form an internal fuel passage.

[0006] However, there are still some defects in the above-mentioned existing technology when pumping oil from an oil barrel:

[0007] The upper valve body of the above-mentioned existing technology is connected to the lower valve body by bolts to form an internal valve cavity. An oil and gas outlet passage is connected to the upper valve body, and an oil and gas inlet passage is connected to the lower valve body. When pumping oil from an oil barrel, the oil liquid in the oil barrel passes through the oil and gas inlet passage and is discharged, while the external air enters the oil barrel through the oil and gas inlet passage to fill the lost oil liquid. At this time, the oil and gas exist in a mixture form. The oil and gas mixture not only contains oil and gas but may also contain impurities, moisture, and other pollutants in the air. These impurities will further affect the quality of the oil liquid and subsequent use.

[0008] Meanwhile, the flow directions of the oil fluid and air in the oil-gas inlet passage are opposite. This reverse flow will cause mutual interference and collision between the fluids, thereby significantly increasing the fluid resistance. Due to the increase in fluid resistance, more energy will be lost during the fluid flow, resulting in pressure loss. This pressure loss will reduce the fluid flow efficiency and affect the smooth progress of the oil pumping process.

[0009] Based on this, under the statement of the above viewpoints, there is still room for improvement in the existing technology for the oil outlet method of the oil barrel. Summary of the Invention

[0010] To solve the above technical problems, the present application provides an oil outlet nozzle for an automotive oil barrel, adopting the following technical solutions:

[0011] The oil outlet nozzle for an automotive oil barrel includes a fixed sleeve. An oil outlet pipe is slidably arranged inside the fixed sleeve. A connecting ring is arranged outside the fixed sleeve. A plug is arranged at the upper end of the fixed sleeve. A piston is slidably arranged inside the fixed sleeve. An oil inlet is formed on the fixed sleeve between the plug and the piston.

[0012] A return spring is arranged between the piston and the plug. A top plate in contact with the piston is arranged on the oil outlet pipe, and the upper end of the top plate is higher than the oil outlet pipe. An air intake member is arranged on the oil outlet pipe.

[0013] The air intake member includes an air intake passage arranged inside the oil outlet pipe. The two ends of the air intake passage are respectively configured with an air inlet and an air outlet. The air outlet of the air intake passage extends to the top plate, and the air inlet of the air intake passage is communicated with the outside of the oil outlet pipe.

[0014] Preferably, the air intake member further includes an adjustment sliding groove formed on the oil outlet pipe corresponding to the air inlet. An adjustment rod threadedly connected thereto is inserted into the adjustment sliding groove. An adjustment knob connected to the adjustment rod is rotatably and slidably arranged in the adjustment sliding groove. An air blocking plug rotatably connected to the adjustment rod is slidably arranged in the air inlet.

[0015] Preferably, a check valve is arranged at the air outlet of the air intake passage;

[0016] The check valve includes a check plug slidably arranged at one end of the air intake passage facing the air outlet. A pressing spring is arranged between the check plug and the air outlet.

[0017] Preferably, a locking clip is arranged on the oil outlet pipe. The locking clip is in an "L" shape and a protrusion is formed on the vertical end.

[0018] Preferably, a sealing inclined surface corresponding to the piston is arranged inside the fixed sleeve,

[0019] Preferably, an inner snap ring is arranged on the connecting ring;

[0020] The internal snap ring includes an annular groove formed in the fixed sleeve at the upper end of the connecting ring. A plurality of sliders evenly distributed circumferentially are slidably inserted into the annular groove. One end of each slider has an arc-shaped outer push bar located in the annular groove.

[0021] An inner sliding groove is formed in the slider. An inner slider connected to the annular groove is slidably arranged in the inner sliding groove. An inner push spring is arranged between the inner slider and the inner sliding groove.

[0022] Preferably, outer push grooves corresponding to the inner sliders one by one are formed in the oil outlet pipe. An outer push inclined surface is arranged on the lower side of the outer push groove. An outer push guiding surface is arranged at the lower inclined end of the outer push inclined surface.

[0023] Preferably, an outer snap ring is arranged on the connecting ring.

[0024] The outer snap ring includes a plurality of sliding rods distributed circumferentially and slidably inserted through the lower end of the connecting ring. One end of each sliding rod is configured with an L section. The L section extends to the upper end of the connecting ring and is provided with an arc-shaped inner push bar.

[0025] A guiding groove is formed in the sliding rod. A guiding block is slidably arranged in the guiding groove. An outer push spring is arranged between the guiding block and the guiding groove.

[0026] Preferably, inner push grooves corresponding to the sliding rods one by one are formed in the oil outlet pipe. An inner push inclined surface is arranged on one side of the inner push groove. An inner push guiding surface is arranged at the upper inclined end of the inner push inclined surface.

[0027] Preferably, a detachable filter plate is arranged in the oil inlet.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. During the oil pumping process of the oil pumping equipment of the present invention, when the oil in the oil barrel leaks, air will enter the intake passage from the air inlet. The air outlet of the intake passage extends to the top plate, so that the air in the intake passage enters the oil barrel to fill the leaked oil.

[0030] At the same time, by adjusting the size of the air inlet, the flow rate of air entering the oil barrel can be accurately controlled, thereby indirectly controlling the flow rate of the oil. The user can adjust the flow rate in real time according to the actual situation during the oil pumping process without interrupting the oil pumping process, improving the convenience and continuity of the operation.

[0031] 2. In the present invention, the slider drives the arc-shaped outer pushing strip at its end to expand outwards, and the arc-shaped outer pushing strip presses tightly against the barrel mouth from inside the oil barrel. At this time, the inner pushing spring is compressed to store elastic potential energy. The arc-shaped outer pushing strip presses tightly against the barrel mouth of the oil barrel from the inside, and together with the connecting ring, it prevents the connecting ring from loosening or falling off during the oil pumping process. Even in the case of long-term oil pumping or high flow rate, the cooperation of the arc-shaped outer pushing strip and the inner pushing spring can effectively prevent the connecting ring from falling off, ensuring the smooth progress of the oil pumping process. When the oil pumping is completed, the operator toggles the lock catch to make the protrusion exit the card slot and move to the lower end of the fixed sleeve.

[0032] 3. The movement of the sliding rod in the present invention drives the arc-shaped inner pushing strip, causing the arc-shaped inner pushing strip to press tightly against the outside of the barrel mouth of the oil barrel. At this time, the outer pushing spring is compressed to store elastic potential energy. The arc-shaped inner pushing strip presses tightly against the barrel mouth of the oil barrel from the outside, and together with the inner clamping ring that clamps the edge of the oil barrel from the inside, it forms a locking structure with internal and external clamping, further increasing the friction between the connecting ring and the oil barrel and improving the stability of the connection. During the oil pumping process, the cooperation of the outer clamping ring and the inner clamping ring effectively prevents the connecting ring from loosening or falling off due to oil fluid flow or external vibration, ensuring the stability and safety of the oil pumping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the present invention.

[0034] Figure 2 is a three-dimensional sectional view of the present invention.

[0035] Figure 3 is the present invention Figure 2 partial enlarged view at A of the present invention.

[0036] Figure 4 is the present invention Figure 2 partial enlarged view at B of the present invention.

[0037] Figure 5 is a schematic structural diagram of the oil outlet pipe of the present invention.

[0038] Figure 6 is a sectional view of the oil outlet pipe of the present invention.

[0039] Figure 7 is the present invention Figure 6 partial enlarged view at C of the present invention.

[0040] Figure 8 is the present invention Figure 6 partial enlarged view at D of the present invention.

[0041] Figure 9 is a schematic structural diagram of the inner clamping ring of the present invention.

[0042] Figure 10 is a sectional view of the inner clamping ring of the present invention.

[0043] Figure 11 is the enlarged partial view of the E part of the present invention Figure 10

[0044] Figure 12 is the cross-sectional view of the outer snap ring of the present invention

[0045] Figure 13 is the present invention Figure 12 the enlarged partial view of the F part

[0046] Figure 14 is the schematic structural view between the thrust washer and the nut of the present invention

[0047] Figure 15 is the cross-sectional view between the thrust washer and the nut of the present invention

[0048] Description of reference numerals: 1, fixed sleeve; 11, plug; 12, connecting ring; 13, oil inlet; 14, sealing inclined surface; 2, oil outlet pipe; 21, top plate; 3, piston; 31, return spring; 4, locking clip; 41, protrusion; 42, card slot; 5, air inlet part; 51, air inlet channel; 52, air inlet; 53, air outlet; 54, adjustment chute; 55, adjustment rod; 56, adjustment knob; 57, air blocking plug; 6, check valve; 61, check plug; 62, abutting spring; 7, inner snap ring; 71, annular groove; 72, slider; 73, arc-shaped outer push bar; 74, inner chute; 75, inner slider; 76, inner push spring; 77, outer push groove; 78, outer push inclined surface; 79, outer push guiding surface; 8, outer snap ring; 81, sliding groove; 82, sliding rod; 821, L section; 83, arc-shaped inner push bar; 84, guide groove; 85, guide block; 86, outer push spring; 87, inner push groove; 871, inner push inclined surface; 88, inner push guiding surface; 89, filter plate; 9, thrust washer; 91, positive ratchet teeth; 92, nut; 93, reverse ratchet teeth; 94, clamping groove; 95, sliding buckle Detailed implementation manners

[0049] The following is a further detailed description of the present application in conjunction with Figures 1 to 15

[0050] The embodiment of the present application discloses an oil outlet nozzle of an automobile oil barrel. By providing an air inlet passage that is completely separated from the oil flow passage for the circulation of air, it is ensured that air can smoothly enter the oil barrel during the oil pumping process

[0051] Embodiment 1:

[0052] Referring to Figure 1 and Figure 2 ​​As shown, the oil nozzle of the automobile oil barrel includes a fixed sleeve 1, an oil outlet pipe 2 is slidably arranged inside the fixed sleeve 1, a connecting ring 12 is arranged on the outside of the fixed sleeve 1, a plug 11 is arranged on the upper end of the fixed sleeve 1, a piston 3 is slidably arranged inside the fixed sleeve 1, and an oil inlet 13 located between the plug 11 and the piston 3 is opened on the fixed sleeve 1.

[0053] When pumping oil from the oil barrel, one side of the plug 11 of the fixing sleeve 1 is inserted into the oil barrel so that the connecting ring 12 contacts the barrel mouth of the oil barrel, and then the oil outlet pipe 2 is connected to the external oil pumping equipment. Before the oil pumping equipment is used for pumping, the oil outlet pipe 2 is pushed to move toward the side of the plug 11, and the oil outlet pipe 2 will drive the top plate 21 provided on the oil outlet pipe 2. The top plate 21 contacts the piston 3 to lift the piston 3, and the piston 3 moves upward and compresses the return spring 31 provided between the piston 3 and the plug 11. Since the upper end of the top plate 21 is higher than the oil outlet pipe 2, the movement of the piston 3 will open the oil inlet 13, so that the oil inlet 13 is connected to the oil outlet pipe 2.

[0054] Reference Figure 2 and Figure 3 As shown, in this process, it is necessary to first move the lock card 4 provided on the oil outlet pipe 2, and the lock card 4 is "L"-shaped and has a protrusion 41 on the vertical end, so that the protrusion 41 is lifted to the upper end of the fixed sleeve 1 and then the oil outlet pipe 2 is moved. The lock card 4 has a deformable resilience. In the initial state, the protrusion 41 of the lock card 4 will contact the lower edge of the fixed sleeve 1 to limit the movement of the oil outlet pipe 2.

[0055] A plurality of slots 42 corresponding to the protrusions 41 are provided on the fixing sleeve 1, and the plurality of slots 42 are evenly spaced. The upward movement distance of the oil outlet pipe 2 determines the upward movement distance of the piston 3, that is, determines the size of the opening of the oil inlet 13. The deformable resilience lock card 4 is moved to lift the protrusion 41 to the outer surface of the fixing sleeve 1, and then the protrusions 41 of the lock card 4 are inserted into different slots 42 to fix the oil outlet pipe 2 at different positions of the fixing sleeve 1, thereby adjusting the size of the oil outlet opening to adjust the amount of oil output.

[0056] That is, the closer the protrusion 41 of the locking card 4 is inserted into the slotted oil outlet pipe 2 above, the greater the distance the piston 3 is pushed upward, the larger the range of the oil outlet is opened, and the greater the oil output; conversely, the closer the protrusion 41 of the locking card 4 is inserted into the slotted oil outlet pipe 2 above, the smaller the distance the piston 3 is pushed upward, the smaller the range of the oil outlet is opened, and the smaller the oil output, thereby adjusting the oil output.

[0057] When the oil is pumped out, the lock card 4 provided on the oil outlet pipe 2 is moved to move the protrusion 41 out of the card slot 42 to the lower end of the fixing sleeve 1 , and the compressed return spring 31 pushes the piston 3 to block the oil inlet 13 .

[0058] After fixing the protrusion 41 of the lock card 4 in the appropriate card slot 42, start the externally connected oil pumping equipment to pump oil. During the oil pumping process, the air in the oil barrel gradually escapes, forming a negative pressure state. The air outside the oil barrel will enter the oil barrel through the air inlet member 5 provided on the oil outlet pipe 2 to fill the lost oil. The oil continuously enters the oil outlet pipe 2 through the oil inlet 13 and is pumped by the oil pumping equipment until the required pumping volume is reached.

[0059] Refer to Figure 4 As shown, a sealing inclined surface 14 corresponding to the piston 3 is provided inside the fixing sleeve 1. The sealing inclined surface 14 is inclined. During the pressing process, the piston 3 will generate an inward component force to further press the contact between the sealing inclined surface 14 and the piston 3 to enhance the sealing effect.

[0060] The sealing inclined surface 14 also has a certain ability to compensate for wear. Even during long-term use, the sealing performance can still be guaranteed, improving the reliability of the equipment, reducing oil leakage and equipment failures caused by sealing failure, and reducing the maintenance frequency and maintenance cost.

[0061] Refer to Figure 5 、 Figure 6 and Figure 7 As shown, specifically, the air inlet member 5 includes an air inlet channel 51 provided inside the oil outlet pipe 2. The air inlet channel 51 is used for air circulation. An air inlet 52 and an air outlet 53 are respectively constructed at both ends of the air inlet channel 51. The air inlet 52 of the air inlet channel 51 is communicated with the outside of the oil outlet pipe 2, enabling air to enter the air inlet channel 51.

[0062] During the oil pumping process of the oil pumping equipment, when the oil in the oil barrel is lost, air will enter the air inlet channel 51 from the air inlet 52. The air outlet 53 of the air inlet channel 51 extends to the top plate 21, enabling the air in the air inlet channel 51 to enter the oil barrel to fill the lost oil.

[0063] Among them, an adjustment sliding groove 54 corresponding to the air inlet 52 is opened on the oil outlet pipe 2. An adjustment rod 55 threadedly connected thereto is inserted into the adjustment sliding groove 54. An adjustment knob 56 connected to the adjustment rod 55 is rotatably and slidably arranged in the adjustment sliding groove 54.

[0064] By rotating the adjustment knob 56, the adjustment rod 55 can be driven to rotate synchronously. The rotating adjustment rod 55 will drive the adjustment knob 56 to move in the adjustment sliding groove 54 through the threaded connection with the adjustment sliding groove 54. At the same time, the adjustment rod 55 will drive a gas blocking plug 57 slidably arranged in the air inlet 52 and rotatably connected thereto. The gas blocking plug 57 moves in the air inlet 52 to change the size of the air inlet 52, thereby knowing the flow rate of air entering the oil barrel and thus the pumping speed of the oil.

[0065] That is, when the adjustment knob 56 is rotated, the adjustment rod 55 drives the air-blocking plug 57 to move in the air inlet 52 through a threaded connection, and when the air inlet 52 is narrowed, the amount of air that can enter the air inlet 52 will decrease accordingly. After the air entering the oil barrel decreases, the air filling the oil decreases, and the flow rate of the oil will decrease; conversely, when the adjustment knob 56 is rotated, the adjustment rod 55 drives the air-blocking plug 57 to move in the air inlet 52 through a threaded connection, and when the air inlet 52 is enlarged, the amount of air that can enter the air inlet 52 will increase accordingly. After the air entering the oil barrel increases, the air filling the oil increases, and the flow rate of the oil will increase.

[0066] By adjusting the size of the air inlet 52, the user can precisely control the flow rate of air entering the oil barrel, thereby indirectly controlling the flow rate of the oil. The user can adjust the flow rate in real time according to the actual situation during the oil pumping process without interrupting the oil pumping process, improving the convenience and continuity of the operation.

[0067] Refer to Figure 8 As shown, in addition, in some cases, the oil in the oil barrel may attempt to flow back into the intake passage 51 through the air outlet 53. By providing a check valve 6 in the air outlet 53 of the intake passage 51, the check valve 6 can prevent the oil in the oil barrel from entering the intake passage 51.

[0068] Specifically, the check valve 6 includes a check plug 61 slidably arranged at one end of the intake passage 51 facing the air outlet 53. A compression spring 62 is arranged between the check plug 61 and the air outlet 53. When air enters the intake passage 51 from the air inlet 52 and then flows out from the air outlet 53, the air will push the check plug 61 to move and compress the compression spring 62, thereby opening the air outlet 53 so that air can enter the oil barrel; conversely, when the oil in the oil barrel wants to enter the intake passage 51 through the air outlet 53, the compression spring 62 will push the check plug 61 to block the air outlet 53, so that the oil cannot pass through the air outlet 53 and enter the intake passage 51, thereby achieving the purpose of preventing the oil in the oil barrel from entering the intake passage 51.

[0069] During the oil pumping process, the entry of air and the protection against the backflow of oil are a cyclic process. Air continuously enters the oil barrel through the check valve 6, while the oil is effectively blocked by the check valve 6, ensuring the smooth progress of the oil pumping process.

[0070] Refer to Figure 9 、 Figure 10 and Figure 11 As shown, when the oil outlet is opened by the protrusion 41 of the lock card 4 being inserted into different card slots 42, the inner snap ring 7 provided on the connecting ring 12 will catch the edge of the oil barrel from the inside to prevent the oil barrel from becoming detached during the oil pumping process.

[0071] Specifically, the inner snap ring 7 includes an annular groove 71 formed in the fixing sleeve 1 at the upper end of the connecting ring 12. A plurality of sliders 72 evenly distributed in the circumferential direction are slidably inserted into the annular groove 71. An inner sliding groove 74 is formed in the slider 72, and an inner slider 75 connected to the annular groove 71 is slidably arranged in the inner sliding groove 74.

[0072] When the protrusion 41 of the lock card 4 is inserted into different card slots 42 to open the oil outlet, the oil outlet pipe 2 will move upward. At this time, the outer push groove 77 formed in the oil outlet pipe 2 will move accordingly, and the outer push groove 77 corresponds to the inner slider 75 one by one. When the outer push groove 77 moves upward, the slider 72 will enter the outer guiding surface 79 provided at the inclined end of the outer push surface 78 through the outer push surface 78 provided at the lower side of the outer push groove 77, so that the slider 72 drives the arc-shaped outer push bar 73 at one end of the slider 72 located in the annular groove 71, and compresses the inner push spring 76 provided between the inner slider 75 and the inner sliding groove 74. At this time, the arc-shaped outer push bar 73 will press against the barrel mouth from inside the oil barrel, thereby preventing the fixing from falling off the oil barrel during the oil pumping process.

[0073] The slider 72 drives the arc-shaped outer push bar 73 at its end to expand outward, and the arc-shaped outer push bar 73 presses against the barrel mouth from inside the oil barrel. At this time, the inner push spring 76 is compressed and stores elastic potential energy. The arc-shaped outer push bar 73 presses against the oil barrel mouth from the inside and acts together with the connecting ring 12 to prevent the connecting ring 12 from loosening or falling off during the oil pumping process.

[0074] Even in the case of long-term oil pumping or high flow rate, the cooperation of the arc-shaped outer push bar 73 and the inner push spring 76 can effectively prevent the connecting ring 12 from falling off, ensuring the smooth progress of the oil pumping process. When the oil pumping is over, the operator toggles the lock card 4 to make the protrusion 41 withdraw from the card slot 42 and move to the lower end of the fixing sleeve 1.

[0075] When the oil pumping is over, toggle the lock card 4 to make the protrusion 41 withdraw from the card slot 42. When the protrusion 41 is withdrawn from the card slot 42 and moved to the lower end of the fixing sleeve 1, the slider 72 will return to the outer push groove 77 through the outer push surface 78. At this time, the compressed inner push spring 76 will push the slider 72, making the slider 72 move into the inner push groove 87. At the same time, the slider 72 will drive the arc-shaped inner push bar 83, making the arc-shaped inner push bar 83 retract into the annular groove 71.

[0076] It should be noted that the length of the outer push groove 77 is only for accommodating the slider 72. Even if the lock card 4 makes the protrusion 41 snap into the lowermost card slot 42, the slider 72 will withdraw from the inner push groove 87 and enter the inner guiding surface 88 to realize the locking of the fixing sleeve 1.

[0077] Refer to Figure 12 and Figure 13As shown in the figure, an outer snap ring 8 is further provided on the connecting ring 12. The outer snap ring 8 is located outside the connecting ring 12, near the mouth of the oil barrel. The outer snap ring 8 will snap the mouth of the oil barrel from the outside to further fix the fixing sleeve 1.

[0078] Specifically, the outer snap ring 8 includes a plurality of circumferentially distributed sliding grooves 81 opened at the lower end of the connecting ring 12. A sliding rod 82 is slidably arranged in the sliding groove 81. One end of the sliding rod 82 slidably penetrates through the fixing sleeve 1. An L section 821 is constructed at one end of the sliding rod 82. The L section 821 extends to the upper end of the connecting ring 12 and is provided with an arc-shaped inner pushing strip 83. A guide groove 84 is opened on the sliding rod 82, and a guide block 85 is slidably arranged in the guide groove 84.

[0079] When the protrusion 41 of the locking card 4 is inserted into different card slots 42 to open the oil outlet, the oil outlet pipe 2 will move upward. At this time, the inner pushing groove 87 opened on the oil outlet pipe 2 will move upward accordingly, and the inner pushing grooves 87 correspond to the sliding rods 82 one by one. When the inner pushing groove 87 moves upward, one end of the sliding rod 82 will enter the inner pushing inclined surface 871 provided on one side of the inner pushing groove 87 through the inner pushing inclined surface 871, and an inner pushing guiding surface 88 is provided at the lower inclined end of the inner pushing inclined surface 871.

[0080] At this time, an outer pushing spring 86 is arranged between the guide block 85 and the guide groove 84, which will push the sliding rod 82 to approach the fixing sleeve 1. The sliding rod 82 synchronously drives the arc-shaped inner pushing strip 83, so that the arc-shaped inner pushing strip 83 abuts against the outside of the mouth of the oil barrel, thereby further fixing the fixing sleeve 1.

[0081] When the oil pumping is completed, the locking card 4 is toggled to make the protrusion 41 withdraw from the card slot 42. When the protrusion 41 withdraws from the card slot 42 and moves to the lower end of the fixing sleeve 1, the sliding rod 82 will return to the inner pushing guiding surface 88 through the inner pushing inclined surface 871. At this time, the sliding rod 82 will move away from the fixing sleeve 1 and compress the inner pushing spring 76, so as to disengage from the contact with the mouth of the barrel and release the fixing sleeve 1.

[0082] The movement of the sliding rod 82 will drive the arc-shaped inner pushing strip 83, so that the arc-shaped inner pushing strip 83 abuts against the outside of the mouth of the oil barrel. At this time, the outer pushing spring 86 is compressed and stores elastic potential energy. The arc-shaped inner pushing strip 83 abuts against the mouth of the oil barrel from the outside, and together with the inner snap ring 7 that clamps the edge of the oil barrel from the inside, it forms a locking structure of internal and external clamping, further increasing the friction between the connecting ring 12 and the oil barrel and improving the stability of the connection. During the oil pumping process, the cooperation of the outer snap ring 8 and the inner snap ring 7 effectively prevents the connecting ring 12 from loosening or falling off due to oil fluid flow or external vibration, ensuring the stability and safety of the oil pumping process.

[0083] It should be noted that the length of the inner pushing guiding surface 88 is only for accommodating the slider 72. Even if the locking card 4 makes the protrusion 41 snap into the lowermost card slot 42, the sliding rod 82 will also move out of the inner pushing guiding surface 88 and enter the inner pushing groove 87 to realize the locking of the fixing sleeve 1.

[0084] Reference Figure 13 As shown, in addition, a detachable filter plate 89 is provided in the oil inlet 13 , and the filter plate 89 filters the oil when the oil passes through the oil inlet 13 and enters the oil outlet pipe 2 .

[0085] Embodiment 2:

[0086] Reference Figure 14 and Figure 15 On the basis of the first embodiment, a thrust pad 9 is provided on the connecting ring 12, a positive ratchet 91 is provided at the upper end of the thrust pad 9, a detachable nut 92 is rotatably provided on the thrust pad 9, and a reverse ratchet 93 corresponding to the positive ratchet 91 is provided at the lower end of the nut 92.

[0087] The nut 92 is provided with a plurality of snap-fit grooves 94 evenly distributed in the circumferential direction, and one of the snap-fit grooves 94 is configured as a sliding buckle 95 .

[0088] The thrust pad 9 is installed on the connecting ring 12. Its main function is to provide support and prevent the connecting ring 12 from loosening or shifting due to external force during oil pumping. The upper end of the thrust pad 9 is designed with positive ratchet teeth 91. These ratchet teeth are serrated with the tooth tips facing upward, and are used to cooperate with the reverse ratchet teeth 93 at the lower end of the nut 92 to achieve one-way locking.

[0089] The nut 92 is designed to be detachable and connected to the thrust pad 9 by a thread. The user can use a tool (such as a wrench) to easily tighten or loosen the nut 92. The lower end of the nut 92 is designed with a reverse ratchet 93, which corresponds to the positive ratchet 91 on the thrust pad 9. When the nut 92 is tightened, the reverse ratchet 93 meshes with the positive ratchet 91 to form a one-way lock to prevent the nut 92 from loosening.

[0090] The implementation principle of the present invention is:

[0091] (1): When pumping oil from an oil barrel, insert one side of the plug 11 of the fixing sleeve 1 into the oil barrel so that the connecting ring 12 contacts the barrel mouth of the oil barrel, and then connect the oil outlet pipe 2 to the external oil pumping equipment. Before the oil pumping equipment is used for pumping, push the oil outlet pipe 2 toward the plug 11. The oil outlet pipe 2 will drive the top plate 21 provided on the oil outlet pipe 2. The top plate 21 contacts the piston 3 to lift the piston 3. The movement of the piston 3 will open the oil inlet 13, so that the oil inlet 13 is connected to the oil outlet pipe 2.

[0092] (2): During this process, it is necessary to first move the lock card 4 provided on the oil outlet pipe 2 so that the protrusion 41 is lifted to the upper end of the fixed sleeve 1 and then move the oil outlet pipe 2. The lock card 4 has a deformable resilience. In the initial state, the protrusion 41 of the lock card 4 will contact the lower edge of the fixed sleeve 1 to limit the movement of the oil outlet pipe 2.

[0093] (3): After fixing the protrusion 41 of the locking card 4 in the appropriate card slot 42, start the externally connected oil pumping equipment to pump oil. During the oil pumping process of the oil pumping equipment, when the oil in the oil barrel is lost, air will enter the air intake channel 51 from the air intake port 52. The air outlet 53 of the air intake channel 51 extends to the top plate 21, so that the air in the air intake channel 51 enters the oil barrel to fill the lost oil. The oil continuously enters the oil outlet pipe 2 through the oil inlet 13 and is pumped by the oil pumping equipment until the required pumping volume is reached.

[0094] (4): When the protrusion 41 of the locking card 4 is inserted into different card slots 42 to open the oil outlet, the oil outlet pipe 2 will move upward. At this time, the outer push groove 77 opened on the oil outlet pipe 2 will move accordingly. When the outer push groove 77 moves upward, the slider 72 will enter the outer push guiding surface 79 provided at the inclined end of the outer push inclined surface 78 through the outer push inclined surface 78 provided on the lower side of the outer push groove 77, so that the slider 72 drives the arc-shaped outer push bar 73 and compresses the inner push spring 76. At this time, the arc-shaped outer push bar 73 will press against the barrel mouth from inside the oil barrel, thereby preventing the fixation from falling off the oil barrel during the oil pumping process.

[0095] (5): When the protrusion 41 of the locking card 4 is inserted into different card slots 42 to open the oil outlet, the oil outlet pipe 2 will move upward. At this time, the inner push groove 87 opened on the oil outlet pipe 2 will move upward accordingly, and the inner push groove 87 corresponds to the sliding rod 82 one by one. When the inner push groove 87 moves upward, one end of the sliding rod 82 will enter the inner push guiding surface 88 provided at the lower inclined end of the inner push inclined surface 871 through the inner push inclined surface 871 provided on one side of the inner push groove 87. At this time, the outer push spring 86 provided between the guide block 85 and the guide groove 84 will push the sliding rod 82 towards the fixed sleeve 1, and the sliding rod 82 synchronously drives the arc-shaped inner push bar 83, so that the arc-shaped inner push bar 83 presses against the outside of the barrel mouth of the oil barrel, thereby further fixing the fixed sleeve 1.

[0096] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. The oil outlet nozzle of an automobile oil barrel, comprising a fixed sleeve (1), and an oil outlet pipe (2) is slidably arranged in the fixed sleeve (1), characterized in that: A connecting ring (12) is arranged on the outside of the fixed sleeve (1), a plug (11) is arranged at the upper end of the fixed sleeve (1), a piston (3) is slidably arranged in the fixed sleeve (1), and an oil inlet (13) located between the plug (11) and the piston (3) is formed on the fixed sleeve (1); A return spring (31) is arranged between the piston (3) and the plug (11), a top plate (21) contacting the piston (3) is arranged on the oil outlet pipe (2), and the upper end of the top plate (21) is higher than the oil outlet pipe (2), and an air inlet member (5) is arranged on the oil outlet pipe (2); The air inlet member (5) includes an air inlet channel (51) arranged in the oil outlet pipe (2), an air inlet (52) and an air outlet (53) are respectively constructed at both ends of the air inlet channel (51), the air outlet (53) of the air inlet channel (51) extends to the top plate (21), and the air inlet (52) of the air inlet channel (51) is communicated with the outside of the oil outlet pipe (2).

2. The fuel outlet nozzle of the fuel drum for an automobile according to claim 1, characterized in that: The air inlet member (5) further includes an adjustment chute (54) formed on the oil outlet pipe (2) corresponding to the air inlet (52), an adjustment rod (55) threadedly connected with the adjustment chute (54) is inserted in the adjustment chute (54), an adjustment knob (56) connected with the adjustment rod (55) is rotatably and slidably arranged in the adjustment chute (54), and an air blocking plug (57) rotatably connected with the adjustment rod (55) is slidably arranged in the air inlet (52).

3. The fuel outlet nozzle of the car fuel tank according to claim 1, characterized in that: A check valve (6) is arranged at the air outlet (53) of the air inlet channel (51); The check valve (6) includes a check plug (61) slidably arranged at one end of the air inlet channel (51 facing the air outlet (53), and a pressing spring (62) is arranged between the check plug (61) and the air outlet (53).

4. The fuel outlet nozzle of the fuel drum for an automobile according to claim 1, wherein: A locking clip (4) is arranged on the oil outlet pipe (2), and the locking clip (4) is in an "L" shape and a protrusion (41) is constructed at the vertical end.

5. The fuel outlet nozzle of the fuel tank for an automobile according to claim 1, wherein: A sealing inclined surface (14) corresponding to the piston (3) is arranged in the fixed sleeve (1).

6. The fuel outlet nozzle of the fuel drum for an automobile according to claim 1, characterized in that: An inner snap ring (7) is arranged on the connecting ring (12); The inner snap ring (7) includes an annular groove (71) formed on the fixed sleeve (1) at the upper end of the connecting ring (12), a plurality of sliders (72) evenly distributed in the circumferential direction are slidably inserted in the annular groove (71), and an arc-shaped outer pushing strip (73) located in the annular groove (71) is arranged at one end of the slider (72); An inner chute (74) is formed on the slider (72), an inner slider (75) connected with the annular groove (71) is slidably arranged in the inner chute (74), and an inner pushing spring (76) is arranged between the inner slider (75) and the inner chute (74).

7. The fuel outlet nozzle of the car fuel tank according to claim 6, characterized in that: Outer pushing grooves (77) corresponding to the inner sliders (75) one by one are formed on the oil outlet pipe (2), an outer pushing inclined surface (78) is arranged below the outer pushing grooves (77), and an outer pushing guiding surface (79) is arranged at the lower inclined end of the outer pushing inclined surface (78).

8. The fuel oil outlet nozzle of the motor vehicle fuel tank according to claim 1, characterized in that: An outer snap ring (8) is arranged on the connecting ring (12); The outer snap ring (8) includes a plurality of sliding rods (82) circumferentially distributed and slidably inserted through the lower end of the connecting ring (12), an L section (821) is constructed at one end of the sliding rod (82), and an arc-shaped inner pushing strip (83) is arranged at the upper end of the L section (821) extending to the connecting ring (12); A guide groove (84) is formed in the sliding rod (82), a guide block (85) is slidably arranged in the guide groove (84), and an external pushing spring (86) is arranged between the guide block (85) and the guide groove (84).

9. The fuel outlet nozzle of the fuel drum for an automobile according to claim 8, characterized in that: Inner pushing grooves (87) corresponding to the sliding rods (82) one by one are formed in the oil outlet pipe (2), an inner pushing inclined surface (871) is arranged on one side of the inner pushing groove (87), and an inner pushing guiding surface (88) is arranged at the upper inclined end of the inner pushing inclined surface (871).

10. The fuel outlet nozzle of the fuel drum for a vehicle according to claim 1, wherein: A detachable filter plate (89) is arranged in the oil inlet (13).

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