Oil bottle cap capable of accurately controlling quantity

Abstract

The utility model relates to the technical field of bottle caps, and discloses an oil bottle cap capable of accurately controlling quantity, which comprises a lower cap body, an upper cap body and a lower cap body, the upper cover body is arranged on one side, far away from the container, of the lower cover body; the flat hose is arranged in the through hole, and the wall of the flat hose is elastic; the flow limiter comprises two closed frames which are oppositely arranged and hinged to the through hole, each closed frame comprises a long shifting rod and a short shifting rod which are arranged in an included angle mode, a first clamping column is arranged at the end, away from the short shifting rod, of the long shifting rod, a second clamping column is arranged at the end, away from the long shifting rod, of the short shifting rod, and the flow limiter has a first closed state and a second closed state. Edible oil enters the flat hose and opens the pipe wall at the corresponding position of the flat hose, so that the flow limiter is driven to be converted into the second closed state from the first closed state, and the edible oil pouring device solves the problems that when a consumer pours the edible oil, the amount of the poured edible oil cannot be judged, and the health of the consumer is harmed due to excessive pouring.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle caps, and in particular to a precise quantity-controlled oil bottle cap. Background Art

[0002] Edible oil, also known as cooking oil, is an animal or vegetable fat used in food preparation and is typically liquid at room temperature. Excessive consumption of cooking oil can lead to obesity and increase the risk of diabetes, hypertension, dyslipidemia, atherosclerosis, and other diseases. Therefore, the World Health Organization recommends that adults consume no more than 25 grams of cooking oil per day.

[0003] In the related art, cooking oil usually enters the hands of consumers in the form of oil barrels or oil bottles as storage carriers. When consumers use it, they open or remove the bottle cap and pour the cooking oil from the oil bottle or oil barrel to cook food.

[0004] However, in the above-mentioned related technologies, consumers are unable to accurately judge the amount of cooking oil to be poured when pouring it, and often over-dumping occurs, resulting in excessive intake of cooking oil and endangering the health of consumers. Utility Model Content

[0005] In view of this, the utility model provides a precise quantity-controlled oil bottle cap to solve the problem that consumers cannot judge the amount of cooking oil to be poured when pouring cooking oil, resulting in excessive pouring and endangering the health of consumers.

[0006] In the first aspect, the utility model provides a precise control oil bottle cap, comprising: a lower cover body, which is arranged at the opening of the container, and the lower cover body is provided with a through hole extending along the axis direction of the lower cover body; an upper cover body, which is arranged on the side of the lower cover body away from the container and is used to close the opening of the through hole; a flat hose, which is arranged in the through hole, and the two end openings of the flat hose are respectively arranged at different openings of the through hole, and the tube wall of the flat hose is elastic. When edible oil enters the flat hose, the tube wall of the flat hose moves in a direction away from each other; a flow limiter, comprising two closing The closing frame includes a long lever and a short lever arranged at an angle, a first clamping column is provided at one end of the long lever away from the short lever, and a second clamping column is provided at one end of the short lever away from the long lever. The flow limiter has a first closed state and a second closed state. In the first closed state, the two first clamping columns clamp and close the flat hose. In the second closed state, the two second clamping columns clamp and close the flat hose. Edible oil enters the flat hose and stretches the tube wall of the corresponding position of the flat hose, thereby driving the flow limiter from the first closed state to the second closed state.

[0007] Beneficial effect: The outlet of the edible oil is sealed by setting an upper cover body, which plays the role of sealing the container. The lower cover body is provided with a through hole, and a flat hose is provided in the through hole. When the consumer pours the edible oil, the edible oil flows out of the through hole through the flat hose. When the consumer pours the edible oil, the container is tilted or inverted, and the edible oil enters the flat hose under the action of gravity, and the tube wall of the flat hose is stretched open, so that the two side walls of the flat hose with larger widths are separated in the direction of moving away from each other, and the flat hose expands. When the edible oil enters the flat hose from the container, it first passes through the position of the second clamping column. At this time, the two second clamping columns are pushed away from each other by the tube wall of the flat hose. At the same time, the first clamping columns approach each other and clamp the closed flat hose, so that the closing frame rotates, the flow limiter is in the first closed state, and the edible oil continues to move along the flat hose. When the edible oil reaches the position of the first clamping column, the side wall of the flat hose at the first clamping column is squeezed by the edible oil, and the first clamping column is pushed by the flat hose to have a tendency to move away from each other. At the same time, due to the long length of the long lever, the lever Under the action, the first clamping column is more easily pushed by the tube wall than the second clamping column, thereby forcing the first clamping column to be pushed open, and the closing frame rotates to change the flow limiter from the first closed state to the second closed state. At this time, the two second clamping columns clamp the flat hose, blocking the edible oil from continuing to enter the flat hose from the container. The edible oil that is in the flat hose and has passed the position of the second clamping column flows out from the flat hose toward the pipe mouth of the upper cover, thereby realizing the quantitative pouring of edible oil. The overall structure is simple, and it is convenient for consumers to judge the amount of edible oil poured out, avoiding excessive dumping that endangers consumer health.

[0008] In an optional embodiment, the first clamping column and the second clamping column are both perpendicular to the axis of the through hole, and the first clamping column and the second clamping column are both parallel to the wider pipe wall of the flat hose.

[0009] Beneficial effect: By limiting the posture of the first clamping column and the second clamping column, the first clamping column and the second clamping column are parallel to the wider side wall of the flat hose and perpendicular to the axial direction of the flat hose. When the oil enters the flat hose and pushes the corresponding first clamping column and the second clamping column, the first clamping column and the second clamping column are subjected to more uniform force. In addition, under the premise of ensuring that the first clamping column and the second clamping column can clamp and close the flat hose, the length of the first clamping column and the second clamping column is minimized, the overall weight of the flow limiter is reduced, and the influence of the flow limiter's own weight on the operation of the flow limiter is reduced.

[0010] In an optional implementation, the length of the long lever is L1, the length of the short lever is L2, and L1≥2L2 is satisfied.

[0011] Beneficial effect: By limiting the length ratio of the long lever and the short lever, the lever formed by the long lever and the short lever has a sufficient lever arm ratio. When the oil reaches the first clamping column position and pushes the flat hose wall, the long lever can be pushed smoothly to ensure that the closing frame can be transformed from the first closed state to the second closed state, and prevent the structure from getting stuck.

[0012] In an optional embodiment, the included angle between the long lever and the short lever ranges from 90° to 165°.

[0013] Beneficial effect: By controlling the angle between the long lever and the short lever, the posture of the flow restrictor closing frame can be controlled to ensure the closing effect of the flat hose in the first closing state and the blocking effect of the edible oil flow in the second closing state.

[0014] In an optional embodiment, one end of the long lever is connected to one end of the short lever, and the flow limiter is located at the connection between the long lever and the short lever and is hinged to the hole wall of the through hole.

[0015] Beneficial effect: The long lever and the short lever are connected at their ends, and the connection is hinged to the wall of the through hole, thereby improving the lever effect formed between the long lever and the short lever within the limited space in the through hole and improving the reliability of the structure.

[0016] In an optional embodiment, the pipe opening of the flat hose facing the container is arranged in a trumpet shape.

[0017] Beneficial effect: By setting the nozzle of the flat hose toward the container side into a trumpet shape, when the consumer pours the cooking oil, the cooking oil can enter the flat hose more efficiently. At the same time, since the container is not suddenly inverted when the consumer pours the cooking oil, but gradually tilted, it is not easy for the cooking oil to suddenly fill the nozzle of the flat hose when it flows, and thus it is not easy to suddenly block the air pressure connection between the flat hose and the container, resulting in the oil being unable to flow smoothly into the flat hose. In addition, in the process of the consumer gradually tilting the container, the cooking oil gradually enters the flat hose through the trumpet-shaped nozzle, so that the flat hose at the position of the second clamping column is smoothly and evenly stretched, slowing down the speed of closing the flat hose on the first clamping column side, so that the residual air in the flat hose has sufficient time to be discharged from the nozzle close to the upper cover side, thereby avoiding the situation where the residual air in the flat hose cannot be discharged due to the closing of the flat hose by the first clamping column, occupying the space in the flat hose, and affecting the pouring accuracy of each oil output.

[0018] In an optional embodiment, a mounting plate is provided at the opening of the through hole facing the upper cover body, a through groove is provided on the mounting plate, and one end of the flat hose facing the upper cover body is connected to the mounting plate and the pipe opening is connected to the through groove.

[0019] Beneficial effect: By arranging a mounting plate on the side of the through hole facing the upper cover body, and arranging a through groove connected to the flat hose on the mounting plate, the flow rate of the edible oil flowing out of the flat hose is limited by the width of the through groove, and it is convenient for the upper cover body to guide the outflowing edible oil, avoiding the edible oil flowing out too quickly and causing oil spillage, resulting in waste and other inconveniences, and making it convenient for consumers to control the pouring speed and pouring direction of the edible oil.

[0020] In an optional embodiment, the opening of the through slot is diamond-shaped, and the diamond-shaped corners of the opening of the through slot are rounded.

[0021] Beneficial effect: By setting the through groove into a diamond shape, when the consumer tilts the container, one of the angles of the diamond can be facing downward. When the cooking oil flows out of the flat hose and passes through the through groove, it will concentrate on the angle to form a liquid flow, further improving the consumer's control over the pouring speed and direction of the cooking oil.

[0022] In an optional embodiment, the upper cover body is hinged to the lower cover body.

[0023] Beneficial effect: Since the upper cover and the lower cover are hinged, on the one hand, it is convenient for the upper cover and the lower cover to be buckled together, and on the other hand, when the upper cover and the lower cover are opened, the upper cover is prevented from being lost, thereby further improving the convenience of the bottle cap.

[0024] In an optional embodiment, the flat hose includes two oppositely arranged first side walls and two oppositely arranged second side walls, the first side walls are wider than the second side walls, the second side walls are side walls with accordion-type folds, and the folds on the second side walls extend along the length direction of the flat hose.

[0025] Beneficial effect: By arranging accordion-shaped pleats on the second side wall of the flat hose, the extent to which the flat hose can be stretched is increased, and the amount of edible oil contained in the flat hose is increased, thereby effectively saving the length of the lower cover in the axial direction, which is convenient for saving space. At the same time, due to the arrangement of the accordion-shaped pleats on the second side wall, the flat hose has better tension, which helps to improve the elasticity of the flat hose, so that the flat hose has a larger expansion upper limit. At the same time, when the flat hose is not stretched by edible oil, it can also effectively shrink to reduce the channel area through which the oil can pass, reduce the evaporation of edible oil, and avoid the contamination of the edible oil by dust and other debris outside the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of a bottle cap with precise quantity control according to an embodiment of the present utility model;

[0028] Figure 2 This is a cross-sectional schematic diagram showing the internal structure of a bottle cap with precise quantity control according to an embodiment of the present utility model;

[0029] Figure 3 This is a cross-sectional schematic diagram of a bottle cap with precise quantity control according to an embodiment of the present utility model, showing a first closed state;

[0030] Figure 4 This is a cross-sectional schematic diagram of a bottle cap with precise quantity control according to an embodiment of the present utility model, which is used to reflect a second closed state;

[0031] Figure 5 This is a schematic diagram of a bottle cap with precise quantity control according to an embodiment of the utility model, used to reflect the cross section of a flat hose.

[0032] Description of reference numerals:

[0033] 100, lower cover; 101, through hole; 200, upper cover; 300, flat hose; 301, first side wall; 302, second side wall; 400, flow restrictor; 401, closing frame; 4011, long lever; 4012, short lever; 4013, first clamping column; 4014, second clamping column; 500, mounting plate; 501, through groove. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0035] The following combination Figures 1 to 5 , describing the embodiments of the present utility model.

[0036] According to an embodiment of the present invention, on the one hand, a precise control oil bottle cap is provided, comprising: a lower cover body 100, which is arranged at the opening of the container, and a through hole 101 is provided in the lower cover body 100 and is arranged along the axial direction of the lower cover body 100; an upper cover body 200, which is arranged on the side of the lower cover body 100 away from the container and is used to close the opening of the through hole 101; a flat hose 300, which is arranged in the through hole 101, and the two end openings of the flat hose 300 are respectively arranged at different openings of the through hole 101, and the tube wall of the flat hose 300 is elastic. When edible oil enters the flat hose 300, the tube wall of the flat hose 300 moves in a direction away from each other; a flow restrictor 400, which comprises two oppositely arranged and respectively hinged to the through hole 101. The closing frame 401 includes a long lever 4011 and a short lever 4012 arranged at an angle. The long lever 4011 is provided with a first clamping column 4013 at one end away from the short lever 4012, and the short lever 4012 is provided with a second clamping column 4014 at one end away from the long lever 4011. The flow limiter 400 has a first closed state and a second closed state. In the first closed state, the two first clamping columns 4013 clamp and seal the flat hose 300. In the second closed state, the two second clamping columns 4014 clamp the flat hose 300. The edible oil enters the flat hose 300 and stretches the tube wall of the corresponding position of the flat hose 300, thereby driving the flow limiter 400 to change from the first closed state to the second closed state.

[0037] In this embodiment, the upper cover 200 seals the cooking oil outlet, effectively sealing the container. The lower cover 100 is provided with a through hole 101, within which a flat hose 300 is positioned. When the consumer pours the cooking oil, the oil flows out through the flat hose 300. When the container is tilted or inverted, the oil enters the flat hose 300 under the force of gravity, stretching the walls of the flat hose 300 and causing the two wider sidewalls of the flat hose 300 to separate, expanding the flat hose 300. When the cooking oil enters the flat hose 300 from the container, it first passes through the position of the second clamping post 4014. At this time, the two second clamping posts 4014 are pushed away from each other by the tube wall of the flat hose 300. At the same time, the first clamping posts 4013 approach each other and clamp the closed flat hose 300, so that the closing frame 401 rotates, the flow limiter 400 is in the first closed state, and the cooking oil continues to move along the flat hose 300. When the cooking oil reaches the position of the first clamping post 4013, the side wall of the flat hose 300 at the first clamping post 4013 is squeezed by the cooking oil, and the first clamping post 4013 is pushed by the flat hose 300 and tends to move away from each other. At the same time, due to the length of the long lever 4011 The length is longer, and under the action of the lever, the first clamping column 4013 is more easily pushed by the tube wall than the second clamping column 4014, thereby forcing the first clamping column 4013 to be pushed open, and the closing frame 401 rotates to change the flow limiter 400 from the first closed state to the second closed state. At this time, the two second clamping columns 4014 clamp the flat hose 300, preventing the edible oil from continuing to enter the flat hose 300 from the container. The edible oil located in the flat hose 300 and having passed the position of the second clamping column 4014 flows out from the flat hose 300 toward the pipe mouth of the upper cover, thereby realizing the quantitative pouring of the edible oil. The overall structure is simple, and it is convenient for consumers to judge the amount of edible oil poured out, avoiding excessive pouring that endangers consumer health.

[0038] Specifically, in the above embodiment, there is no limitation on the specific form of the upper cover 200 and the lower cover 100. The upper cover 200 can be hinged to the lower cover 100, the upper cover 200 can be separately provided from the lower cover 100, or the upper cover 200 can be connected via a flexible cable. The upper cover 200 can be fastened to the lower cover 100 to close the through hole 101, or it can be connected to the lower cover 100 by means of a snap connection, a threaded connection, or the like to close the opening of the through hole 101.

[0039] It should be noted that the above embodiment does not limit the material and shape of the flat hose 300. For example, the flat hose 300 is made of latex material, the cross-section of the flat hose 300 is rectangular, and the aspect ratio of the cross-section of the flat hose 300 is 5:1.

[0040] In one embodiment, the first clamping column 4013 and the second clamping column 4014 are both perpendicular to the axis of the through hole 101 , and the first clamping column 4013 and the second clamping column 4014 are both parallel to the wider wall of the flat hose 300 .

[0041] In this embodiment, by restricting the postures of the first clamping column 4013 and the second clamping column 4014, the first clamping column 4013 and the second clamping column 4014 are parallel to the wider side wall of the flat hose 300 and perpendicular to the axial direction of the flat hose 300. When the oil enters the flat hose 300 and pushes the corresponding first clamping column 4013 and the second clamping column 4014, the force on the first clamping column 4013 and the second clamping column 4014 is more evenly distributed. In addition, under the premise of ensuring that the first clamping column 4013 and the second clamping column 4014 can clamp and close the flat hose 300, the length of the first clamping column 4013 and the second clamping column 4014 are minimized to reduce the overall weight of the flow limiter 400 and reduce the influence of the weight of the flow limiter 400 on the operation of the flow limiter 400.

[0042] In one embodiment, the length of the long lever 4011 is L1, the length of the short lever 4012 is L2, and L1≥2L2 is satisfied.

[0043] In this embodiment, by limiting the length ratio of the long lever 4011 and the short lever 4012, the lever formed by the long lever 4011 and the short lever 4012 has a sufficient lever arm ratio. When the oil reaches the position of the first clamping column 4013 and pushes the wall of the flat hose 300, the long lever 4011 can be pushed smoothly, ensuring that the closing frame 401 can be transformed from the first closed state to the second closed state, and preventing the structure from getting stuck.

[0044] In one embodiment, the included angle between the long lever 4011 and the short lever 4012 ranges from 90° to 165°.

[0045] In this embodiment, by controlling the angle between the long lever 4011 and the short lever 4012, the posture of the closing frame 401 of the flow limiter 400 can be controlled to ensure the sealing effect of the flat hose 300 in the first closed state and the blocking effect of the edible oil flow in the second closed state.

[0046] In one embodiment, one end of the long lever 4011 is connected to one end of the short lever 4012 , and the flow limiter 400 is hinged to the wall of the through hole 101 at the connection between the long lever 4011 and the short lever 4012 .

[0047] In this embodiment, the long lever 4011 and the short lever 4012 are connected at their ends, and the connection is hinged to the wall of the through hole 101, thereby enhancing the lever effect formed between the long lever 4011 and the short lever 4012 within the limited space in the through hole 101 and improving the reliability of the structure.

[0048] In one embodiment, the pipe opening of the flat hose 300 facing the container is configured in a trumpet shape.

[0049] In this embodiment, the nozzle of the flat hose 300 facing the container is set to be trumpet-shaped, so that when the consumer pours the cooking oil, the cooking oil can enter the flat hose 300 more efficiently. At the same time, because the container is not suddenly inverted when the consumer pours the cooking oil, but gradually tilted, it is not easy for the cooking oil to suddenly fill the nozzle of the flat hose 300 when it flows, and it is not easy to suddenly block the air pressure connection between the flat hose 300 and the container, resulting in the oil not being able to flow smoothly into the flat hose 300. In addition, in the process of the consumer gradually tilting the container, the cooking oil passes through The trumpet-shaped pipe mouth gradually converges into the flat hose 300, so that the flat hose 300 is smoothly and evenly stretched at the position of the second clamping column 4014, slowing down the speed of closing the flat hose 300 on one side of the first clamping column 4013, so that the residual air in the flat hose 300 has sufficient time to be discharged from the pipe mouth close to the side of the upper cover body 200, thereby avoiding the situation where the residual air in the flat hose 300 cannot be discharged due to the closure of the flat hose 300 by the first clamping column 4013, and occupies the space inside the flat hose 300, affecting the accuracy of pouring the oil output each time.

[0050] In one embodiment, a mounting plate 500 is provided at the opening of the through hole 101 facing the upper cover body 200, and a through groove 501 is opened on the mounting plate 500. One end of the flat hose 300 facing the upper cover body 200 is connected to the mounting plate 500 and the pipe mouth is connected to the through groove 501.

[0051] In this embodiment, a mounting plate 500 is provided on the side of the through hole 101 facing the upper cover body 200, and a through groove 501 connected to the flat hose 300 is provided on the mounting plate 500, so that the flow rate of the edible oil flowing out of the flat hose 300 is limited by the width of the through groove 501, and it is convenient for the upper cover body 200 to guide the outflowing edible oil, avoiding the edible oil flowing out too quickly and causing the oil to spill, resulting in waste and other inconveniences, and making it convenient for consumers to control the pouring speed and pouring direction of the edible oil.

[0052] In one embodiment, the opening of the through slot 501 is in a diamond shape, and the diamond-shaped corners of the opening of the through slot 501 are rounded.

[0053] In this embodiment, by setting the through groove 501 into a diamond shape, when the consumer tilts the container, one of the angles of the diamond can be facing downward. When the cooking oil flows out of the flat hose 300 and passes through the through groove 501, it will be concentrated toward the angle to form a liquid flow, further improving the consumer's control over the pouring speed and direction of the cooking oil.

[0054] In one embodiment, the upper cover 200 is hinged to the lower cover 100 .

[0055] In this embodiment, since the upper cover body 200 and the lower cover body 100 are hinged, on the one hand, it is convenient for the upper cover body 200 to be buckled with the lower cover body 100, and on the other hand, when the upper cover body 200 and the lower cover body 100 are opened, the upper cover body 200 is prevented from being lost, further improving the convenience of the bottle cap.

[0056] In one embodiment, the flat hose 300 includes two oppositely arranged first side walls 301 and two oppositely arranged second side walls 302, the first side wall 301 is wider than the second side wall 302, the second side wall 302 is a side wall with accordion-shaped folds, and the folds on the second side wall 302 extend along the length direction of the flat hose 300.

[0057] In this embodiment, by providing accordion-shaped pleats on the second side wall 302 of the flat hose 300, the extent to which the flat hose 300 can be stretched is increased, and the capacity of the flat hose 300 for edible oil is increased, thereby effectively saving the length of the lower cover body 100 in the axial direction, which is convenient for saving space. At the same time, due to the provision of the accordion-shaped pleats on the second side wall 302, the flat hose 300 has better tension, which helps to improve the elasticity of the flat hose 300, so that the flat hose 300 has a larger expansion upper limit. At the same time, when the flat hose 300 is not stretched by edible oil, it can also effectively shrink to reduce the channel area through which the oil can pass, reduce the evaporation of edible oil, and avoid the situation where dust and other debris outside the container contaminate the edible oil.

[0058] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A precise control oil bottle cap, characterized by: include: A lower cover (100) is provided at the opening of the container, wherein a through hole (101) is provided in the lower cover (100) and is penetrated along the axis direction of the lower cover (100); An upper cover (200) is provided on a side of the lower cover (100) away from the container and is used to close the opening of the through hole (101); A flat hose (300) is provided in the through hole (101), with the ends of the flat hose (300) being respectively provided at different openings of the through hole (101), and the tube wall of the flat hose (300) being elastic, so that when edible oil enters the flat hose (300), the tube walls of the flat hose (300) move in directions away from each other; The flow limiter (400) comprises two closing frames (401) arranged opposite to each other and respectively hinged to the through hole (101), the closing frames (401) comprising a long lever (4011) and a short lever (4012) arranged at an angle, a first clamping column (4013) being provided at one end of the long lever (4011) away from the short lever (4012), and a second clamping column (4014) being provided at one end of the short lever (4012) away from the long lever (4011). The invention has a first closed state and a second closed state. In the first closed state, the two first clamping columns (4013) clamp and seal the flat hose (300). In the second closed state, the two second clamping columns (4014) clamp the flat hose (300). Edible oil enters the flat hose (300) and stretches the tube wall of the flat hose (300) at a corresponding position, thereby driving the flow restrictor (400) to change from the first closed state to the second closed state.

2. The precise control oil bottle cap according to claim 1, characterized in that: The first clamping column (4013) and the second clamping column (4014) are both perpendicular to the axis of the through hole (101), and the first clamping column (4013) and the second clamping column (4014) are both parallel to the wider wall of the flat hose (300).

3. The precise control oil bottle cap according to claim 1, characterized in that: The length of the long lever (4011) is L1, the length of the short lever (4012) is L2, and L1≥2L2 is satisfied.

4. The precise control oil bottle cap according to claim 3, characterized in that: The included angle between the long lever (4011) and the short lever (4012) ranges from 90° to 165°.

5. The precise control oil bottle cap according to claim 4, characterized in that: One end of the long lever (4011) is connected to one end of the short lever (4012), and the flow limiter (400) is located at the connection between the long lever (4011) and the short lever (4012) and is hinged to the hole wall of the through hole (101).

6. The precise control oil bottle cap according to claim 5, characterized in that: The pipe opening of the flat hose (300) facing the container is arranged in a trumpet shape.

7. The precise control oil bottle cap according to claim 6, characterized in that: A mounting plate (500) is provided at the opening of the through hole (101) on the side facing the upper cover (200), and a through groove (501) is provided on the mounting plate (500). One end of the flat hose (300) facing the upper cover (200) is connected to the mounting plate (500), and the pipe opening is communicated with the through groove (501).

8. The precise control oil bottle cap according to claim 7, characterized in that: The notch of the through slot (501) is rhombus-shaped, and the rhombus-shaped corners of the notch of the through slot (501) are rounded.

9. The precise control oil bottle cap according to claim 1, characterized in that: The upper cover body (200) is hinged to the lower cover body (100).

10. The precise control oil bottle cap according to any one of claims 1 to 9, characterized in that: The flat hose (300) comprises two oppositely arranged first side walls (301) and two oppositely arranged second side walls (302), wherein the width of the first side walls (301) is greater than that of the second side walls (302), and the second side walls (302) are side walls with accordion-type folds, and the folds on the second side walls (302) extend along the length direction of the flat hose (300).

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