Quantitative liquid bottle

Abstract

The quantitative liquid bottle comprises a bottle body, a bottle cap and an air guide pipe, the air guide pipe is arranged in an inner cavity of the bottle body, and the lower end of the air guide pipe is close to the bottom face of the inner cavity of the bottle body; the bottle cap comprises a quantitative cavity, a siphon and a vent hole, a bottom plate of the quantitative cavity comprises a liquid inlet hole communicated with the quantitative cavity and an inner cavity of the bottle body, and a top plate of the quantitative cavity comprises a liquid outlet; the siphon is arranged in the quantitative cavity and comprises a liquid inlet pipe, a liquid outlet pipe and a connecting part of the liquid inlet pipe and the liquid outlet pipe, the upper end of the liquid outlet pipe is connected with the liquid outlet, and the liquid inlet end of the liquid inlet pipe is close to the top plate of the quantitative cavity; the connecting part close to the quantitative cavity bottom plate comprises a breather pipe; the breather pipe is connected with the upper end of the gas guide pipe; the upper end of the vent hole is communicated with the atmosphere, and the lower end is positioned at the lower part of the quantitative cavity. According to the quantitative liquid bottle, the quantitative cavity can be quantitatively filled with the quantitative liquid bottle after the quantitative liquid bottle is poured once, and quantitative liquid is output.

Description

[Technical field]

[0001] The invention relates to a container for containing liquid, in particular to a quantitative liquid bottle. [Background Technology]

[0002] Oil bottles are commonly used kitchen utensils. Nowadays, people pay more attention to the refinement of their diet, and health-conscious groups strictly control the intake of edible oil. Traditional oil bottles lack an effective oil control mechanism, making it difficult to accurately take out oil, affecting healthy diet plans, and are inconsistent with the trend of refined oil control management.

[0003] The utility model with patent number CN202121796498.9 discloses an oil pot, which includes a pot body and a pot cover connected to the pot body, the pot cover is provided with a pot spout extending upward, the top of the pot spout is an oil pouring port, the pot cover is inserted with a quantitative chamber located below the pot spout, the quantitative chamber has a quantitative chamber oil nozzle inserted on the pot spout, a partition plate is provided in the quantitative chamber, the partition plate divides the quantitative chamber into a first chamber and a second chamber, the quantitative chamber oil nozzle is located in the first chamber and the partition plate is blocked at the bottom of the quantitative chamber oil nozzle, the partition plate is provided with a first through hole connecting the second chamber and the quantitative chamber oil nozzle, and a second through hole connecting the first chamber and the second chamber, and an oil inlet is provided on the side wall of the first chamber. The utility model can realize quantitative pouring of liquid in the pot, but in order to pour out a quantitative amount of liquid, the oil pot needs to be poured twice, which is not convenient enough. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a quantitative liquid bottle which can output a quantitative liquid by pouring it once.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a quantitative liquid bottle, including a bottle body, a bottle cap and an air guide tube, the air guide tube is arranged in the inner cavity of the bottle body, and the lower end of the air guide tube is close to the bottom surface of the inner cavity of the bottle body; the bottle cap includes a quantitative cavity, a siphon tube and an air vent, the bottom plate of the quantitative cavity includes a liquid inlet hole connecting the quantitative cavity with the inner cavity of the bottle body, and the top plate of the quantitative cavity includes a liquid outlet; the siphon tube is arranged in the quantitative cavity, including a liquid inlet pipe, a liquid outlet pipe and a connecting part between the liquid inlet pipe and the liquid outlet pipe, the upper end of the liquid outlet pipe is connected to the liquid outlet, and the liquid inlet end of the liquid inlet pipe is close to the top plate of the quantitative cavity; the connecting part close to the bottom plate of the quantitative cavity includes a vent tube, and the vent tube is connected to the upper end of the air guide tube; the upper end of the vent hole is connected to the atmosphere, and the lower end of the vent hole is located at the lower part of the quantitative cavity.

[0006] In the quantitative liquid bottle described above, the siphon is a telescoped tube, the liquid outlet pipe of the siphon is inserted into the liquid inlet pipe, the inner diameter of the liquid inlet pipe is larger than the outer diameter of the liquid outlet pipe; the lower end of the liquid outlet pipe is close to the bottom of the liquid inlet pipe, and the bottom of the liquid inlet pipe serves as the connecting part and includes the ventilation pipe; the ventilation pipe is fixed on the bottom plate of the quantitative cavity, and has an opening on the bottom surface of the bottom plate, and the upper end of the air guide tube is inserted into the inner hole of the ventilation pipe through the opening.

[0007] In the quantitative liquid bottle described above, the axis of the liquid outlet pipe is obliquely intersected with the main axis of the bottle body, the liquid inlet hole is located on the inclined side of the liquid outlet pipe, and the vent hole is located on the side away from the inclined side of the liquid outlet pipe; the liquid inlet hole and the vent hole are through holes with a water drop-shaped cross section.

[0008] In the quantitative liquid bottle described above, the intersection angle between the axis of the liquid outlet pipe and the main axis of the bottle body is 25° to 35°; the distance between the lower end of the liquid outlet pipe and the bottom surface of the liquid inlet pipe is 2 to 3 mm.

[0009] The quantitative liquid bottle described above, the bottle cap includes a cover body and a quantitative cavity, the cover body includes a receiving hole for accommodating the quantitative cavity, and the quantitative cavity is installed in the receiving hole; the quantitative cavity is arranged in the quantitative cavity, the bottom plate of the quantitative cavity is the bottom plate of the quantitative cavity, and the top plate of the quantitative cavity is the top plate of the quantitative cavity; the top plate of the quantitative cavity includes a boss protruding downward in the quantitative cavity, and the vent hole penetrates the boss.

[0010] In the quantitative liquid bottle described above, the axis of the liquid outlet tube is inclined in the longitudinal direction, and the bottle cap includes two elastic buckles, which are separated in the transverse direction and arranged symmetrically; the elastic buckle includes a buckle and a compression spring, and the buckle includes a button and a hook, the hook is arranged below the button, the hook head of the hook faces outward, and the inner side of the button includes a spring seat; the quantitative cavity includes a buckle mounting groove corresponding to the buckle, and the upper part of the buckle mounting groove includes a button hole; the buckle and the compression spring are arranged in the buckle mounting groove, and the button of the buckle is arranged in the button hole, and a gap is left between the inner side of the buckle and the bottom of the buckle mounting groove, the compression spring is installed between the bottom of the buckle mounting groove and the spring seat of the button, and the inner wall of the cover body bearing hole includes a groove corresponding to the buckle hook, and the buckle hook hooks the upper edge of the groove.

[0011] The quantitative liquid bottle described above has an outer periphery of the lower part of the quantitative cavity including an annular groove, in which an elastic sealing ring is installed, and the lower part of the quantitative cavity and the bearing hole of the cover body are sealed by the elastic sealing ring; the lower end of the quantitative cavity includes a bottom plate bearing hole, and the bottom plate is installed in the bottom plate bearing hole and has an interference fit with the bottom plate bearing hole.

[0012] The quantitative liquid bottle described above includes a bottle cap including a cover plate and a strip-shaped gravity flip cover, the top plate includes a liquid nozzle protruding upward, the liquid nozzle includes the liquid outlet, and the inclination angle of the liquid outlet is the same as the inclination angle of the liquid outlet pipe; the upper part of the quantitative cavity includes a cylindrical side wall, the top end of the cylindrical side wall is higher than the top plate, and the cover plate is clamped with the upper end of the cylindrical side wall; the cover plate includes a flip cover hole, the gravity flip cover is arranged in the flip cover hole, and the gravity flip cover is hinged to the cover plate.

[0013] In the quantitative liquid bottle described above, the button hole of the buckle mounting groove is opened on the cylindrical side wall, the upper end of the buckle mounting groove is open, and the opening at the upper end of the buckle mounting groove serves as an entrance for the buckle installation; the opening at the upper end of the buckle mounting groove is closed by a cover plate, and the gap between the upper end of the button and the cover plate along the axial direction of the compression spring is smaller than the gap between the lower end of the buckle and the bottom of the buckle mounting groove.

[0014] The above-mentioned quantitative liquid bottle, the liquid discharge process of the quantitative liquid bottle includes the following working steps:

[0015] 1) Turn over the quantitative liquid bottle so that the liquid outlet pipe of the siphon tube is vertically downward, and the liquid in the bottle body cavity flows into the quantitative cavity from the liquid inlet hole on the bottom plate. At the same time, air enters from the liquid outlet pipe of the siphon tube and flows into the upper part of the liquid in the bottle body cavity through the air guide pipe to fill the vacuum formed by the outflow of the liquid in the bottle body cavity; the air above the liquid surface in the quantitative cavity is reduced due to the entry of liquid, and flows out from the vent hole on the top plate;

[0016] 2) The liquid level in the quantitative cavity gradually rises. When the liquid enters the connecting part from the liquid inlet pipe of the siphon tube, the liquid entering the connecting part blocks the air passage between the liquid outlet pipe and the air guide pipe. The air no longer enters the inner cavity of the bottle body. A vacuum is formed above the liquid in the inner cavity of the bottle body. The liquid in the inner cavity of the bottle body stops flowing into the quantitative cavity from the liquid inlet hole on the bottom plate.

[0017] 3) Under the action of siphon, the liquid in the quantitative cavity flows outward through the liquid outlet pipe of the siphon tube, the liquid level in the quantitative cavity gradually drops, and the space vacated by the liquid flowing out of the quantitative cavity is replenished by air flowing into the vent hole; 4) When the liquid level in the quantitative cavity drops to the inlet position of the siphon inlet pipe, the siphon action stops, and the liquid outlet pipe of the siphon tube stops discharging liquid outward; the amount of liquid discharged from the quantitative liquid bottle at one time is equivalent to the volume of liquid corresponding to the vertical distance between the inlet of the quantitative cavity and the bottom of the liquid inlet pipe;

[0018] 5) If the quantitative liquid bottle remains in the flipped state, the quantitative liquid bottle will repeat the above steps 1 to 4, and a quantitative volume of liquid will flow out in each cycle; the quantitative liquid bottle can pour out an integer multiple of the quantitative volume of liquid by flipping it once.

[0019] The quantitative liquid bottle of the present invention can quantitatively fill the quantitative cavity and output a quantitative amount of liquid by pouring once. [Drawings]

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a three-dimensional diagram of a quantitative oil bottle according to embodiment 1 of the present invention.

[0022] Figure 2 It is a top view of the quantitative oil bottle according to Example 1 of the present invention.

[0023] Figure 3 It is an exploded view of the quantitative oil bottle according to Example 1 of the present invention.

[0024] Figure 4 yes Figure 2 AA section view in.

[0025] Figure 5 yes Figure 2 BB section view in.

[0026] Figure 6 It is a schematic diagram of injecting oil into the quantitative cavity of the bottle body in Example 1 of the present invention.

[0027] Figure 7 It is a schematic diagram of the quantitative chamber of Example 1 of the present invention just being filled with quantitative oil.

[0028] Figure 8 It is a schematic diagram of the quantitative cavity of Example 1 of the present invention starting to output oil.

[0029] Fig. 9 It is a schematic diagram of the quantitative chamber of Example 1 of the present invention stopping outputting oil.

[0030] Fig.10 It is a cross-sectional view of a quantitative oil bottle according to embodiment 2 of the present invention. [Specific implementation method]

[0031] The structure and working principle of the quantitative oil bottle of embodiment 1 of the present invention are as follows Figures 1 to 9 As shown, it includes a glass bottle body 100 and a bottle cap 200.

[0032] The bottle cap 200 includes a cover body 10, a quantitative cavity 20, two elastic buckles 30, a cover plate 40 and a strip-shaped gravity flip cover 50. The lower part of the cover body 10 includes an internal thread 11 connected to the glass bottle body 100, and the upper part of the cover body 10 has a receiving hole 12 for accommodating the quantitative cavity 20, and the quantitative cavity 20 is installed in the receiving hole 12. The cavity in the quantitative cavity 20 is the quantitative cavity 20A, the bottom plate 21 of the quantitative cavity 20 is the bottom plate of the quantitative cavity 20A, and the top plate 22 of the quantitative cavity 20 is the top plate of the quantitative cavity 20A.

[0033] The bottom plate 21 of the quantitative cavity 20 has an oil inlet 211 communicating the quantitative cavity 20A with the inner cavity of the glass bottle 100 . The top plate 22 of the quantitative cavity 20 has an oil nozzle 221 protruding outwards, and the oil nozzle 221 has an oil outlet 222 .

[0034] A siphon 23 is provided in the quantitative chamber 20 . The siphon 23 includes an oil inlet pipe 231 , an oil outlet pipe 232 , and a connecting portion 233 between the oil inlet pipe 231 and the oil outlet pipe 232 .

[0035] In this embodiment, the siphon tube 23 is a telescoped tube, and the oil inlet end of the oil inlet tube 231 is close to the top plate 22 of the quantitative chamber 20. The oil outlet tube 232 of the siphon tube 23 is inserted into the oil inlet tube 231 from the oil inlet end of the oil inlet tube 231, and the inner diameter of the oil inlet tube 231 is larger than the outer diameter of the oil outlet tube 232. The upper end of the oil outlet tube 232 is connected to the oil outlet 222, and the lower end of the oil outlet tube 232 is close to the bottom of the oil inlet tube 231. The bottom of the oil inlet tube 231 is provided with a vent tube 234 as a connecting portion 233, and the vent tube 234 is connected to the cavity in the connecting portion 233. The ventilation tube 234 is fixed on the bottom plate 21 of the quantitative cavity 20, and is opened at the bottom surface of the bottom plate 21. The upper end of the air guide tube 60 is inserted into the inner hole of the ventilation tube 234 through the opening. The main body of the air guide tube 60 is vertically arranged in the inner cavity of the glass bottle body 100, and the lower end of the air guide tube 60 is close to the bottom surface of the inner cavity of the glass bottle body 100.

[0036] The quantitative chamber 20A has a vent hole 224 connected to the atmosphere. The top plate 22 of the quantitative chamber 20 has a boss 223 protruding downward in the quantitative chamber, and the vertically arranged vent hole 224 penetrates the boss. The opening at the upper end of the vent hole 224 is connected to the atmosphere, and the opening at the lower end of the vent hole 224 is located at the lower part of the quantitative chamber 20A.

[0037] The axis of the oil outlet pipe 232 is inclined toward the longitudinal direction (X direction), and the axis of the oil outlet pipe 232 is obliquely intersected with the main axis of the glass bottle body 100. The oil inlet hole 211 is located on the inclined side of the oil outlet pipe 232, and the vent hole 224 is located on the inclined side away from the oil outlet pipe 232. The oil inlet hole 211 and the vent hole 224 are both through holes with a water droplet-shaped cross section. Compared with a circular through hole, a water droplet-shaped through hole has smoother circulation, does not generate bubbles, and is not easy to be blocked.

[0038] In this embodiment, the intersection angle between the axis of the oil outlet pipe 232 and the main axis of the glass bottle body 100 is 30°, the upper end of the oil outlet pipe 232 is inserted into the oil outlet port 222, and the inclination angle of the oil outlet port 222 is the same as the inclination angle of the oil outlet pipe 232. The distance b between the lower end of the oil outlet pipe 232 and the bottom surface of the oil inlet pipe 231 is 2 to 3 mm.

[0039] An annular groove 24 is formed on the outer periphery of the lower part of the quantitative cavity 20 . An elastic sealing ring 241 is installed in the annular groove 24 . The lower part of the quantitative cavity 20 and the receiving hole 12 of the cover body 10 are sealed by the elastic sealing ring 241 .

[0040] A bottom plate receiving hole 25 is formed at the lower end of the quantitative chamber 20A. The bottom plate 21 is installed in the bottom plate receiving hole 12 and is sealed by interference fit with the bottom plate receiving hole 252.

[0041] The upper part of the quantitative chamber 20 includes a circle of cylindrical side walls 26, the top of the cylindrical side walls 26 is higher than the top plate 22, and the edge of the cover plate 40 is snap-fitted with the upper end of the cylindrical side walls 26. The cover plate 40 has a flap hole 41 for facilitating oil discharge, and the gravity flap 50 is arranged in the flap hole 41, and the rear part of the gravity flap 50 is hinged to the cover plate 40.

[0042] The two elastic buckles 30 are separated in the horizontal direction (Y-axis direction) and arranged symmetrically. The elastic buckle 30 includes a buckle 31 and a compression spring 33. The buckle 31 includes a button 311 and a hook 312. The hook 312 is located below the button 311, the hook head of the hook 312 faces outward, and the inner side of the button 311 has a spring seat 313. The quantitative cavity 20 includes a buckle mounting groove 27 corresponding to the buckle 31, and the upper part of the buckle mounting groove 27 includes a button hole 271. The buckle 31 and the compression spring 33 are arranged in the buckle mounting groove 27, the button 311 of the buckle 31 is arranged in the button hole 271, and a gap is left between the inner side of the buckle 31 and the bottom of the buckle mounting groove 27, so that the buckle 31 is pressed inward. The compression spring 33 is installed between the bottom of the buckle installation groove 27 and the spring seat 313 of the button 311 . The inner wall of the cover body bearing hole 12 includes a slot 13 corresponding to the buckle hook 312 . The hook 312 of the buckle 31 hooks the upper edge of the slot 13 .

[0043] The button hole 271 of the buckle installation groove 27 is opened on the cylindrical side wall 26, and the upper end of the buckle installation groove 27 is open. The opening at the upper end of the buckle installation groove 27 serves as an entry for installing the buckle 31. The opening at the upper end of the buckle installation groove 27 is closed by the cover plate 40, and the gap δ between the upper end of the button 311 and the cover plate 40 along the axial direction of the compression spring 33 is smaller than the gap Δ between the lower end of the buckle 31 and the bottom of the buckle installation groove 27. When the button 311 is pressed, the lower end of the buckle 31 swings inward, and the hook 312 is separated from the slot 13. At this time, the quantitative cavity 20 can be taken out from the bearing hole 12.

[0044] The working principle of pouring oil from a quantitative oil bottle in Example 1 of the present invention is as follows Figures 6 to 9 As shown, the following working steps are included:

[0045] 1) If Figure 6As shown, the quantitative oil bottle is tilted (inverted) along the longitudinal direction (X-axis direction) so that the oil outlet pipe 232 of the siphon tube 23 is vertically downward. At this time, the oil in the inner cavity of the glass bottle body 100 flows into the quantitative cavity 20A from the oil inlet hole 211 on the bottom plate 21. At the same time, air enters from the oil outlet pipe 232 of the siphon tube 23 and flows into the top of the oil in the inner cavity of the glass bottle body 100 through the air guide pipe 60, filling the vacuum formed by the outflow of oil in the inner cavity of the glass bottle body 100; the air above the liquid surface in the quantitative cavity 20A is reduced in space due to the entry of oil, and flows out from the vent hole 224 on the top plate 22.

[0046] 2) If Figure 7 As shown, the liquid level in the metering chamber 20A gradually rises, and when the oil enters the connecting portion 233 from the oil inlet pipe 231 of the siphon tube 23, the oil entering the connecting portion 233 blocks the air passage between the oil outlet pipe 232 and the air guide pipe 60, and the air no longer enters the inner cavity of the glass bottle body 100. A vacuum is formed above the oil in the inner cavity of the glass bottle body 100, and the oil in the inner cavity of the glass bottle body 100 stops flowing into the metering chamber 20A from the oil inlet hole 211 on the bottom plate 21.

[0047] 3) If Figure 8 As shown, since the space above the liquid level in the metering chamber 20A is connected to the atmosphere through the vent 224, under the action of siphon, the oil in the metering chamber 20A flows out through the oil outlet pipe 232 of the siphon tube 23, the liquid level in the metering chamber 20A gradually decreases, and the space vacated by the oil in the metering chamber 20A is replenished by the air flowing in through the vent 224.

[0048] 4) If Fig. 9 As shown, when the liquid level in the metering chamber 20A drops to the inlet position of the siphon tube oil inlet pipe 231, the siphon effect stops and the oil outlet pipe 232 of the siphon tube 23 stops discharging oil outward; the amount of oil discharged by the metering oil bottle at one time is equivalent to the volume of oil corresponding to the vertical distance H between the inlet of the metering chamber 20A and the bottom of the oil inlet pipe 231.

[0049] 5) If the quantitative amount is enough for one time, the inverted (inverted) quantitative oil bottle can be restored to an upright state to stop the oil discharge. If it is necessary to continue to discharge oil, the quantitative oil bottle can be kept in an inverted (inverted) state. The quantitative oil bottle will repeat the above steps 1 to 4. Each cycle of outflow is the same as the above. Fig. 9 The vertical spacing H shown corresponds to the volume of oil. The quantitative oil bottle can pour out an integer multiple of the approved quantitative amount of oil at one time.

[0050] The structure of the quantitative oil bottle of Example 2 of the present invention is as follows Fig.10 As shown, the difference between Example 2 and Example 1 is only that the siphon tube 23 is replaced by a U-shaped bent tube from the overlapping tube of Example 1, and the working principle and other structures are exactly the same.

Claims

1. A quantitative liquid bottle, comprising a bottle body and a bottle cap, characterized in that: It includes an air guide tube, which is arranged in the inner cavity of the bottle body, and the lower end of the air guide tube is close to the bottom surface of the inner cavity of the bottle body; the bottle cap includes a quantitative cavity, a siphon tube and a vent hole, the bottom plate of the quantitative cavity includes a liquid inlet hole communicating with the quantitative cavity and the inner cavity of the bottle body, and the top plate of the quantitative cavity includes a liquid outlet; the siphon tube is arranged in the quantitative cavity, and includes a liquid inlet pipe, a liquid outlet pipe and a connecting part between the liquid inlet pipe and the liquid outlet pipe, the upper end of the liquid outlet pipe is connected with the liquid outlet, and the liquid inlet end of the liquid inlet pipe is close to the top plate of the quantitative cavity; the connecting part close to the bottom plate of the quantitative cavity includes a vent tube, and the vent tube is connected with the upper end of the air guide tube; the upper end of the vent hole is communicated with the atmosphere, and the lower end of the vent hole is located at the lower part of the quantitative cavity.

2. The quantitative liquid bottle according to claim 1, characterized in that: The siphon tube is a telescoped tube, the liquid outlet pipe of the siphon tube is inserted into the liquid inlet pipe, the inner diameter of the liquid inlet pipe is larger than the outer diameter of the liquid outlet pipe; the lower end of the liquid outlet pipe is close to the bottom of the liquid inlet pipe, and the bottom of the liquid inlet pipe serves as the connecting part and includes the ventilation pipe; the ventilation pipe is fixed on the bottom plate of the quantitative chamber, and has an opening on the bottom surface of the bottom plate, and the upper end of the air guide tube is inserted into the inner hole of the ventilation pipe through the opening.

3. The quantitative liquid bottle according to claim 2, characterized in that: The axis of the liquid outlet pipe is obliquely intersected with the main axis of the bottle body, the liquid inlet hole is located on the inclined side of the liquid outlet pipe, and the vent hole is located on the side away from the inclined side of the liquid outlet pipe; the liquid inlet hole and the vent hole are through holes with a water drop-shaped cross section.

4. The quantitative liquid bottle according to claim 3, characterized in that: The intersection angle between the axis of the liquid outlet pipe and the main axis of the bottle body is 25° to 35°; the distance between the lower end of the liquid outlet pipe and the bottom surface of the liquid inlet pipe is 2 to 3 mm.

5. The quantitative liquid bottle according to claim 3, characterized in that: The bottle cap comprises a cap body and a quantitative cavity, the cap body comprises a receiving hole for accommodating the quantitative cavity, and the quantitative cavity is installed in the receiving hole; The quantitative cavity is arranged in the quantitative cavity body, the bottom plate of the quantitative cavity is the bottom plate of the quantitative cavity body, and the top plate of the quantitative cavity is the top plate of the quantitative cavity body; the top plate of the quantitative cavity body includes a boss protruding downward in the quantitative cavity, and the vent hole penetrates the boss.

6. The quantitative liquid bottle according to claim 5, characterized in that: The axis of the liquid outlet tube is inclined in the longitudinal direction, and the bottle cap includes two elastic buckles, which are separated in the transverse direction and arranged symmetrically; the elastic buckle includes a buckle and a compression spring, and the buckle includes a button and a hook, the hook is arranged below the button, the hook head of the hook faces outward, and the inner side of the button includes a spring seat; the quantitative cavity includes a buckle mounting groove corresponding to the buckle, and the upper part of the buckle mounting groove includes a button hole; the buckle and the compression spring are arranged in the buckle mounting groove, and the button of the buckle is arranged in the button hole, and a gap is left between the inner side of the buckle and the bottom of the buckle mounting groove, the compression spring is installed between the bottom of the buckle mounting groove and the spring seat of the button, and the inner wall of the cover body bearing hole includes a groove corresponding to the buckle hook, and the buckle hook hooks the upper edge of the groove.

7. The quantitative liquid bottle according to claim 5, characterized in that: The outer periphery of the lower part of the quantitative cavity includes an annular groove, in which an elastic sealing ring is installed, and the lower part of the quantitative cavity and the bearing hole of the cover body are sealed through the elastic sealing ring; the lower end of the quantitative cavity includes a bottom plate bearing hole, and the bottom plate is installed in the bottom plate bearing hole and has an interference fit with the bottom plate bearing hole.

8. The quantitative liquid bottle according to claim 6, characterized in that: The bottle cap comprises a cover plate and a strip-shaped gravity flip cover, the top plate comprises a liquid nozzle protruding upward, the liquid nozzle comprises the liquid outlet, the inclination angle of the liquid outlet is the same as the inclination angle of the liquid outlet pipe; the upper part of the quantitative cavity comprises a cylindrical side wall, the top end of the cylindrical side wall is higher than the top plate, the cover plate is clamped with the upper end of the cylindrical side wall; the cover plate comprises a flip cover hole, the gravity flip cover is arranged in the flip cover hole, and the gravity flip cover is hinged to the cover plate.

9. The quantitative liquid bottle according to claim 5, characterized in that: The button hole of the buckle mounting groove is opened on the cylindrical side wall, and the upper end of the buckle mounting groove is open. The opening at the upper end of the buckle mounting groove serves as an entrance for the buckle installation; the opening at the upper end of the buckle mounting groove is closed by a cover plate, and the gap between the upper end of the button and the cover plate along the axial direction of the compression spring is smaller than the gap between the lower end of the buckle and the bottom of the buckle mounting groove.

10. The quantitative liquid bottle according to claim 1, characterized in that: The process of discharging the quantitative liquid bottle includes the following steps: 1) Turn over the quantitative liquid bottle so that the liquid outlet pipe of the siphon tube is vertically downward, and the liquid in the bottle body cavity flows into the quantitative cavity from the liquid inlet hole on the bottom plate. At the same time, air enters from the liquid outlet pipe of the siphon tube and flows into the upper part of the liquid in the bottle body cavity through the air guide pipe to fill the vacuum formed by the outflow of the liquid in the bottle body cavity; the air above the liquid surface in the quantitative cavity is reduced due to the entry of liquid, and flows out from the vent hole on the top plate; 2) The liquid level in the quantitative cavity gradually rises. When the liquid enters the connecting part from the liquid inlet pipe of the siphon tube, the liquid entering the connecting part blocks the air passage between the liquid outlet pipe and the air guide pipe. The air no longer enters the inner cavity of the bottle body. A vacuum is formed above the liquid in the inner cavity of the bottle body. The liquid in the inner cavity of the bottle body stops flowing into the quantitative cavity from the liquid inlet hole on the bottom plate. 3) Under the action of siphon, the liquid in the quantitative cavity flows out through the liquid outlet pipe of the siphon tube, the liquid level in the quantitative cavity gradually decreases, and the space vacated by the liquid in the quantitative cavity is replenished by the air flowing into the vent hole; 4) When the liquid level in the quantitative chamber drops to the inlet position of the siphon inlet pipe, the siphon action stops and the outlet pipe of the siphon stops discharging liquid outward; The amount of liquid discharged from the quantitative liquid bottle at one time is equal to the volume of liquid corresponding to the vertical distance between the inlet of the quantitative cavity and the bottom of the liquid inlet tube; 5) If the quantitative liquid bottle is kept in the flipped state, the quantitative liquid bottle repeats the above steps 1 to 4, and a quantitative volume of liquid flows out in each cycle; the quantitative liquid bottle can pour out an integer multiple of the quantitative volume of liquid by flipping it once.

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