Quantitative drop bottle

Abstract

The invention discloses a quantitative drop bottle, and belongs to the technical field of drop bottles. A quantitative drop bottle comprises a hollow bottle body with an opening in the upper end, a scale cover, a quantitative box and a liquid outlet pipe. The scale cover and the quantitative box are sequentially and hermetically connected to the upper end of the bottle body; the liquid outlet pipe is vertically arranged in the scale cover and the quantitative box in a penetrating mode, the lower side face of the liquid outlet pipe is flush with the lower side face of the quantitative box, and the upper end of the liquid outlet pipe extends out of the outer side of the scale cover; the outer side wall of the liquid outlet pipe is sealed and rotationally connected with the inner side walls of the scale cover and the quantitative box; an indicating rod is radially arranged at the upper part of the liquid outlet pipe; the lower side surface of the indicating rod is propped against the upper side surface of the scale cover; when the rotary indicating rod is aligned with the scale marks, the baffle plate completely shields the feeding hole, and the discharging hole is aligned with the discharging groove; the structure is simple, the volume in the liquid storage cavity can be conveniently designed and calculated to mark corresponding scales, a one-way valve does not need to be additionally arranged to isolate liquid, the liquid volume can be freely selected, and the liquid can be accurately and quantitatively poured out.

Description

Technical Field

[0001] The invention belongs to the technical field of dropper bottles, and more specifically, relates to a quantitative dropper bottle. Background Art

[0002] As disclosed in the patent document with application number CN201910083950.8 (application date January 29, 2019), an adjustable inverted quantitative liquid discharge container comprises a bottle body, a middle cover, an upper cover and a quantitative liquid discharge pipe, a partition block is provided at the lower end of the quantitative liquid discharge pipe, the middle cover, the inner side wall of the bottle body, the outer side wall of the quantitative liquid discharge pipe and the upper part of the partition block constitute a accommodating chamber for containing liquid, when the quantitative liquid discharge pipe is driven to move upward with the partition block, the liquid in the accommodating chamber will flow from the liquid inlet through the one-way valve into the liquid storage chamber, the liquid storage chamber is connected with the inner side wall of the quantitative liquid discharge pipe, the liquid in the liquid storage chamber can be directly poured out, and the distance that the quantitative liquid discharge pipe moves upward reflects the volume of the liquid flowing into the liquid storage chamber; therefore, under the condition of setting the scale reasonably, the volume of the liquid flowing into the liquid storage chamber can be directly read, so that it is convenient for the operator to take the required volume of liquid; However, it has at least the following defects: 1. When pouring out the liquid in the bottle, the bottle body is usually in a tilted state. When the bottle body is full of liquid, as the liquid in the holding chamber is poured out, the remaining liquid on the upper side of the partition block may continue to enter the holding chamber through the one-way valve, resulting in inaccurate measured liquid volume; 2. The container can only measure liquid in a quantitative manner and cannot switch between free pouring of liquid and quantitative pouring, which limits the use scenarios of the container; 3. The liquid needs to be isolated by a one-way valve, and the sealing performance of the one-way valve is relatively high; 4. The volume of the liquid storage chamber is irregular, and the design of the corresponding scale reading is relatively complicated, which is not suitable for actual production. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a quantitative dropper bottle, which has a simple structure and is easy to design and calculate the volume in the liquid storage cavity to mark the corresponding scale. It does not require an additional one-way valve to isolate the liquid, and can realize free selection of the liquid volume and precise quantitative pouring of the liquid.

[0004] The quantitative dropper bottle of the present invention comprises a hollow bottle body with an open upper end, a scale cover, a quantitative box and a liquid outlet pipe. The scale cover and the quantitative box are sealed and connected to the upper end of the bottle body in sequence. The liquid outlet pipe is vertically penetrated and arranged inside the scale cover and the quantitative box, the lower side of the liquid outlet pipe is flush with the lower side of the quantitative box, and the upper end of the liquid outlet pipe extends out of the outer side of the scale cover. The outer side wall of the liquid outlet pipe is sealed and rotatably connected to the inner side wall of the scale cover and the quantitative box.

[0005] An indicator rod is radially arranged at the upper part of the liquid outlet pipe, and the lower side of the indicator rod abuts against the upper side of the scale cover. The bottom end of the liquid outlet pipe is sealed, and a connecting rod is arranged at the bottom end of the liquid outlet pipe in the same extending direction as the indicator rod, and a baffle is fixedly connected to the outermost end of the connecting rod. A through discharge trough is arranged at the lower part of the liquid outlet pipe to connect the inside of the discharge pipe with the outer space.

[0006] The scale cover is provided with at least one scale area, and a scale line is radially arranged on the outer edge of the scale area.

[0007] At least one quantitative chamber is provided inside the quantitative box, the quantitative chamber corresponds to the scale area and is located below the scale area, and an inlet is provided on the lower side of the quantitative chamber. The projection of the inlet and the scale line are located on the same straight line. A discharge port is provided on the inner wall of the quantitative chamber, and the discharge port and the discharge trough are located at the same height.

[0008] When the rotating indicator rod is aligned with the scale line, the baffle completely covers the inlet, and the outlet is aligned with the outlet chute.

[0009] As a further improvement of the present invention, an annular groove and a separation groove are provided on the upper side of the scale cover. The annular groove is located between the outer edge of the liquid outlet pipe and the outer edge of the scale cover. The separation groove is radially arranged with the center of the scale cover as the center of the circle, and the separation groove is located above the side wall of the quantitative chamber and the transition chamber, and a scale area is formed between the two separation grooves. The separation groove is connected to the annular groove. A positioning bead is fixedly arranged on the lower side of one end of the indicator rod, and the positioning bead is slidably connected to the annular groove.

[0010] As a further improvement of the present invention, a positioning groove is also provided on the upper side of the scale cover. The positioning groove is provided on the annular groove and is located on the same straight line as the scale line. When the positioning bead rotates to the positioning groove, it is embedded in the positioning groove.

[0011] As a further improvement of the present invention, a transition chamber is further provided inside the quantitative box. A transition hole is provided on the lower side of the transition chamber, and the outer diameter of the transition hole is larger than the outer diameter of the baffle plate, so that the liquid in the bottle body flows into the transition chamber. An indefinite amount of taking area is provided on the scale cover, and the transition chamber is located below the indefinite amount of taking area. A letter mark is radially provided on the outer edge of the indefinite amount of taking area. The projection of the transition hole and the letter mark are located on the same straight line. A discharge port is provided on the inner wall of the transition chamber, and the discharge port and the discharge trough of the liquid discharge pipe are located at the same height.

[0012] As a further improvement of the present invention, the quantitative chamber includes a first chamber, a second chamber, and a third chamber which are arranged in sequence, and the chamber volumes are increased in direct proportion. The upper side of the first chamber corresponds to the first scale area, and a first feed inlet is provided on the lower side. The upper side of the second chamber corresponds to the second scale area, and a second feed inlet is provided on the lower side. The upper side of the third chamber corresponds to the third scale area, and a third feed inlet is provided on the lower side. The scale lines corresponding to the quantitative chambers are all located in the middle of the scale area.

[0013] As a further improvement of the present invention, the diameters of the first feed inlet, the second feed inlet and the third feed inlet increase in direct proportion to each other.

[0014] As a further improvement of the present invention, the volume of the second chamber is twice that of the first chamber. The volume of the third chamber is four times that of the first chamber.

[0015] As a further improvement of the present invention, the scale cover further comprises a stopper which is fixedly arranged on the upper side of the scale cover, at least partly located in the annular groove, and located at the edge of the scale area for limiting the relative rotation of the indicating rod.

[0016] As a further improvement of the present invention, a first through hole is provided at the center of the scale cover, a second through hole is provided at the center of the quantitative box, the first through hole and the second through hole are coaxially arranged, and the lower end of the liquid outlet pipe is arranged to penetrate the first through hole and the second through hole.

[0017] As a further improvement of the present invention, the upper opening of the liquid outlet pipe is provided with a flange extending outwards for discharging liquid.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the bottle body, scale cover, quantitative box and liquid outlet tube, the liquid outlet tube is rotated to align with the corresponding scale line, that is, the liquid volume corresponding to the scale is selected, and there is no need to pour out the liquid and then measure it, which is convenient for quantitative liquid taking; 2. By setting a transition chamber and rotating the liquid outlet tube to align it with the letter mark, the liquid in the bottle can be freely poured out from the liquid outlet tube, and the user can freely choose between two different modes of quantitative or non-quantitative taking, so that the dropper bottle can adapt to more usage scenarios and can be flexibly selected according to the needs of the user; 3. Through the first chamber, the second chamber and the third chamber, the chamber volumes are increased in direct proportion respectively; so that the dropper bottle can have a variety of quantitative chambers of different volumes for selection of taking out amounts, and at the same time, the quantitative chamber is a fan-shaped structure with a relatively regular shape, which is convenient for calculating the corresponding volume in the chamber and is convenient for actual production and manufacturing;

[0019] 4. By setting the annular groove, the positioning groove and the positioning bead, the dividing groove is radially arranged with the center of the scale cover as the center of the circle, the dividing groove is located above the side walls of the quantitative chamber and the transition chamber, and a scale area is formed between the two dividing grooves; the dividing groove is connected with the annular groove; a positioning bead is fixedly arranged on the lower side of one end of the indicator rod, and the positioning bead is slidably connected with the annular groove; when the positioning bead rotates to the positioning groove, it is embedded in the positioning groove; the indicator rod can be stably rotated, which is convenient for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a general exploded schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the scale cover of the present invention; Figure 4 It is a structural schematic diagram of the quantitative box of the present invention; Figure 5 It is a cross-sectional view of the upper side of the quantitative box of the present invention; Figure 6 It is a side cross-sectional view of the scale cover and the quantitative box of the present invention; Figure 7 It is a partial enlarged view of the positioning bead and the positioning groove embedded in the present invention; Figure 8 It is an exploded view of a second specific embodiment of the present invention; Fig. 9 It is the overall structural diagram of the specific embodiment 2 of the present invention.

[0021] Description of the numbers in the figure: Bottle body 1, scale cover 2, first through hole 21, annular groove 22, positioning groove 23, dividing groove 24, first scale area 25, second scale area 26, third scale area 27, start and stop rotating block 28, end rotating block 29, quantitative box 3, first chamber 31, second chamber 32, third chamber 33, transition chamber 34, feed port 35, first feed port 351, second feed port 352, third feed port 353, transition hole 354, discharge port 36, second through hole 37, liquid outlet pipe 4, discharge trough 41, connecting rod 42, baffle plate 43, indicator rod 44, positioning bead 45, assembly set 5, first threaded portion 51, second threaded portion 52. DETAILED DESCRIPTION

[0022] Specific embodiment 1: Please refer to Figure 1-Figure 7 A quantitative dropper bottle comprises a hollow bottle body 1 with an open upper end, a graduated cover 2, a quantitative box 3 and a liquid outlet tube 4.

[0023] The scale cover 2 and the quantitative box 3 are sealed and connected to the upper end of the bottle body 1 in sequence. The liquid outlet pipe 4 is vertically arranged inside the scale cover 2 and the quantitative box 3, the lower side of the liquid outlet pipe 4 is flush with the lower side of the quantitative box 3, and the upper end of the liquid outlet pipe 4 extends out of the outer side of the scale cover 2. Figure 2 As shown, a first through hole 21 is provided at the center of the scale cover 2, and a second through hole 37 is provided at the center of the quantitative box 3. The first through hole 21 and the second through hole 37 are coaxially arranged, and the lower end of the liquid outlet pipe 4 is arranged to penetrate the first through hole 21 and the second through hole 37. The outer wall of the liquid outlet pipe 4 is sealed and rotatably connected to the inner wall of the scale cover 2 and the quantitative box 3.

[0024] An indicator rod 44 is radially arranged at the upper part of the liquid outlet pipe 4, and the lower side of the indicator rod 44 abuts against the upper side of the scale cover 2. The bottom end of the liquid outlet pipe 4 is sealed, and a connecting rod 42 is arranged at the bottom end of the liquid outlet pipe 4 in the same extending direction as the indicator rod 44, and a baffle 43 is fixedly connected to the outermost end of the connecting rod 42. A through discharge trough 41 is arranged at the lower part of the liquid outlet pipe 4 to connect the inside of the discharge pipe 4 with the outer space. Preferably, the upper end opening of the liquid outlet pipe 4 is provided with a flange extending outward as a liquid outlet nozzle for discharging liquid.

[0025] The scale cover 2 has at least one scale area, and a scale line is radially arranged on the outer edge of the scale area. Figure 7 As shown, an annular groove 22 and a separation groove 24 are provided on the upper side of the scale cover 2. The annular groove 22 is located between the outer edge of the liquid outlet pipe 4 and the outer edge of the scale cover 2. The separation groove 24 is radially arranged with the center of the scale cover 2 as the center of the circle, and the separation groove 24 is located above the side wall of the quantitative chamber and the transition chamber, and a scale area is formed between the two separation grooves 24. The separation groove 24 is connected to the annular groove 22. A positioning bead 45 is fixedly provided on the lower side of one end of the indicator rod 44, and the positioning bead 45 is slidably connected to the annular groove 22. A positioning groove 23 is also provided on the upper side of the scale cover 2. The positioning groove 23 is provided on the annular groove 22 and is located on the same straight line as the scale line. When the positioning bead 45 rotates to the positioning groove 23, it is embedded in the positioning groove 23.

[0026] The positioning bead 45 on the lower side of the indicator rod 44 is stuck in the annular groove 22, so that the user can rotate the indicator rod 44 to drive the liquid outlet tube 4 to rotate, and the indicator rod 44 rotates circumferentially along the contour of the annular groove 22. When the positioning bead 45 rotates to the positioning groove 23, it is embedded in the positioning groove 23. It should be noted that the positioning bead 45 has a certain elasticity. When the user applies a greater force to the indicator rod, the positioning bead 45 can be separated from the positioning groove 23 and continue to move along the annular groove 22. The indicator rod 44 can be stably rotated, which is convenient for the user to operate.

[0027] At least one quantitative chamber is provided inside the quantitative box 3, and the quantitative chamber corresponds to the scale area and is located below the scale area. An inlet 35 is provided on the lower side of the quantitative chamber. The inlet 35 and the projection of the scale line are located on the same straight line. A discharge port 36 is provided on the inner wall of the quantitative chamber, and the discharge port 36 and the discharge trough 41 are located at the same height.

[0028] In this embodiment, the quantitative chamber includes a first chamber 31, a second chamber 32 and a third chamber 33 which are arranged in a circle in sequence, and the chamber volumes thereof are increased in direct proportion. The upper side of the first chamber 31 corresponds to the first scale area 25, and a first feed inlet 351 is provided on the lower side. The upper side of the second chamber 32 corresponds to the second scale area 26, and a second feed inlet 352 is provided on the lower side. The upper side of the third chamber 33 corresponds to the third scale area 27, and a third feed inlet 353 is provided on the lower side. The scale lines corresponding to the quantitative chambers are all located in the middle of the scale area. The diameters of the first feed inlet 351, the second feed inlet 352 and the third feed inlet 353 increase in direct proportion in sequence. The chamber volume of the second chamber 32 is twice that of the first chamber 31. The chamber volume of the third chamber 33 is four times that of the first chamber 31.

[0029] The volume of the liquid taken from the first chamber 31 is 5 mL, the volume of the liquid taken from the second chamber 32 is 10 mL, and the volume of the liquid taken from the first chamber 33 is 20 mL. The height of each quantitative chamber is the same, and the angle between the side walls of the quantitative chamber can be adjusted to increase it by an integer multiple, so that the dropper bottle can have a variety of quantitative chambers of different volumes to choose from. The quantitative chamber is a fan-shaped structure with a relatively regular shape, which is convenient for calculating the corresponding volume in the chamber and is convenient for actual production.

[0030] A transition chamber 34 is also provided inside the quantitative box 3. A transition hole 354 is provided on the lower side of the transition chamber 34. The outer diameter of the transition hole 354 is larger than the outer diameter of the baffle 43, so that the liquid in the bottle body 1 flows into the transition chamber 34. An indefinite amount of taking area is provided on the scale cover 2. The transition chamber 34 is located below the indefinite amount of taking area. A letter mark is radially provided on the outer edge of the indefinite amount of taking area. The projection of the transition hole 354 and the letter mark are located on the same straight line. A discharge port 36 is provided on the inner wall of the transition chamber 34. The discharge port 36 and the discharge trough 41 of the liquid discharge pipe 4 are located at the same height.

[0031] The scale cover 2 also includes a stop block. The stop block is fixedly arranged on the upper side of the scale cover 2, and the stop block is at least partially located in the annular groove 22. The stop block is located at the edge of the scale area and is used to limit the relative rotation of the indicator rod 44. In this embodiment, the preferred stop block includes a start stop block 28 and a stop block 29; the start stop block 28 is fixedly arranged on the inner side of the first scale area 25, and is located on the side away from the second scale area 26. When the indicator rod 44 rotates to align with the 5mL scale, the side of the indicator rod 44 abuts against the side of the start stop block 28; the stop block 29 is fixedly arranged on the inner side of the variable-quantity taking area, and when the indicator rod 44 rotates to align with the letter mark, the side of the indicator rod 44 abuts against the side of the stop block 29. It can prevent the indicator rod 44 from rotating too much, and prompt the user that it is already at the initial / end position.

[0032] When the rotating indicator rod 44 is aligned with the scale line, the baffle 43 completely blocks the inlet 35, and the outlet 36 is aligned with the outlet trough 41. It should be noted that in this embodiment, the outlet 36 and the outlet trough 41 are aligned in a straight slot type.

[0033] Working principle: 1. When quantitative measurement is required, place the dropper bottle upright and rotate the indicator rod 44 to the top of any adjacent dividing groove 24 of the required measuring scale area. At this time, the discharge groove 41 of the liquid discharge pipe 4 is staggered with the discharge port 36, and the inlet port 35 is not blocked; invert the dropper bottle so that the liquid in the bottle flows into the quantitative chamber from the inlet port 35, and then rotate the indicator rod 44 to the required scale. When the positioning bead 45 of the indicator rod 44 is embedded in the positioning groove 23, stop rotating the indicator rod 44. At this time, the discharge groove 41 of the liquid discharge pipe 4 is aligned with the discharge port 36, and the baffle 43 blocks the subsequent liquid from flowing in. The quantitative chamber is filled with liquid, and the liquid flows out from the discharge port 36 along the discharge pipe 4 from the opening until the liquid stops flowing. The volume of liquid flowing out is the volume of liquid required to be measured.

[0034] 2. When it is necessary to take an indefinite amount of measurement, place the dropper bottle upright and rotate the indicator rod 44 to the top of any adjacent dividing groove 24 of the indefinite amount taking area. At this time, the discharge groove 41 of the liquid discharge pipe 4 is staggered with the discharge port 36, and the inlet 35 is not blocked; invert the dropper bottle so that the liquid in the bottle flows into the transition chamber 34 from the inlet 35, and then rotate the indicator rod 44 to the letter mark. When the positioning bead 45 of the indicator rod 44 is embedded in the positioning groove 23, stop rotating the indicator rod 44. At this time, the discharge groove 41 of the liquid discharge pipe 4 is aligned with the discharge port 36, and the liquid flows out from the discharge port 36 along the discharge pipe 4 from the opening. When it is necessary to stop pouring, rotate the indicator rod 44 to leave.

[0035] Specific embodiment 2: Please refer to Figure 8-Figure 9 A quantitative dropper bottle is provided, and the same points as the specific embodiment 1 are not repeated here, and the difference lies in that: it also includes an assembly sleeve 5. The assembly sleeve 5 is a hollow structure, and a first threaded portion 51 and a second threaded portion 52 are provided in the assembly sleeve 5; the first threaded portion 51 and the second threaded portion 52 are internal threads; the first threaded portion 51 is arranged at the upper end of the assembly sleeve 5, and the second threaded portion 52 is arranged at the lower end of the assembly sleeve 5. An external thread is provided on the outer side of the scale cover 2, and the external thread of the scale cover 2 matches the first threaded portion 51, and the scale cover 2 and the first threaded portion 51 are connected by threads; the upper side surface of the scale cover 2 is flush with the upper surface of the assembly sleeve 5.

[0036] There is no thread arrangement between the first threaded portion 51 and the second threaded portion 52; an external thread is provided at the upper opening of the bottle body 1, and the external thread of the bottle body 1 matches the second threaded portion 52, and the bottle body 1 and the second threaded portion 52 are connected by threads. When assembling the scale cover 2 and the quantitative box 3, the scale cover 2 is first threadedly connected to the assembly sleeve 5, and then the quantitative box 3 is installed into the assembly sleeve 5 from the lower side of the assembly sleeve 5, and the upper side of the quantitative box 3 is abutted against the lower side of the scale cover 2, and finally the assembly sleeve 2 is connected to the bottle body 1. By providing the assembly sleeve 5, it is convenient to install the scale cover 2 and the quantitative box 3 on the bottle body 1, reduce the time required for assembly, and improve production efficiency.

Claims

1. A quantitative dropper bottle, characterized in that: The invention comprises a hollow bottle body (1) with an open top, a graduated cover (2), a quantitative box (3) and a liquid outlet pipe (4); the graduated cover (2) and the quantitative box (3) are sequentially sealed and connected to the upper end of the bottle body (1); the liquid outlet pipe (4) is vertically penetrated and arranged inside the graduated cover (2) and the quantitative box (3); the lower side surface of the liquid outlet pipe (4) is flush with the lower side surface of the quantitative box (3), and the upper end of the liquid outlet pipe (4) extends outside the graduated cover (2); the outer side wall of the liquid outlet pipe (4) is sealed and rotatably connected to the inner side walls of the graduated cover (2) and the quantitative box (3); An indicator rod (44) is radially arranged at the upper portion of the liquid outlet pipe (4), and the lower side surface of the indicator rod (44) is in contact with the upper side surface of the scale cover (2); the bottom end of the liquid outlet pipe (4) is sealed, and a connecting rod (42) extending in the same direction as the indicator rod (44) is arranged at the bottom end of the liquid outlet pipe (4), and a baffle (43) is fixedly connected to the outermost end of the connecting rod (42); a through discharge groove (41) is arranged at the lower portion of the liquid outlet pipe (4) so ​​that the inside of the discharge pipe (4) is connected to the outer space; The scale cover (2) is provided with at least one scale area, and a scale line is radially arranged on the outer edge of the scale area; At least one quantitative chamber is provided inside the quantitative box (3), the quantitative chamber corresponds to the scale area and is located below the scale area, and an inlet (35) is provided on the lower side of the quantitative chamber; the inlet (35) and the projection of the scale line are located on the same straight line; an outlet (36) is provided on the inner wall of the quantitative chamber, and the outlet (36) and the outlet trough (41) are located at the same height; When the rotating indicating rod (44) is aligned with the scale line, the blocking plate (43) completely blocks the material inlet (35), and the material outlet (36) and the material outlet chute (41) are aligned.

2. A quantitative dropper bottle according to claim 1, characterized in that: An annular groove (22) and a separation groove (24) are provided on the upper side of the scale cover (2); the annular groove (22) is located between the outer edge of the liquid outlet pipe (4) and the outer edge of the scale cover (2); the separation groove (24) is radially arranged with the center of the scale cover (2) as the center of the circle, the separation groove (24) is located above the side walls of the quantitative chamber and the transition chamber, and a scale area is formed between the two separation grooves (24); the separation groove (24) is connected to the annular groove (22); a positioning bead (45) is fixedly arranged on the lower side of one end of the indicator rod (44), and the positioning bead (45) is slidably connected to the annular groove (22).

3. A quantitative dropper bottle according to claim 2, characterized in that: A positioning groove (23) is also provided on the upper side of the scale cover (2); the positioning groove (23) is provided on the annular groove (22) and is located on the same straight line as the scale line, and when the positioning bead (45) rotates to the positioning groove (23), it is embedded in the positioning groove (23).

4. A quantitative dropper bottle according to claim 1, characterized in that: A transition chamber (34) is further provided inside the quantitative box (3); a transition hole (354) is provided on the lower side of the transition chamber (34); the outer diameter of the transition hole (354) is larger than the outer diameter of the baffle (43), so that the liquid in the bottle body (1) flows into the transition chamber (34); an indefinite quantity taking area is provided on the scale cover (2); the transition chamber (34) is located below the indefinite quantity taking area; a letter mark is radially provided on the outer edge of the indefinite quantity taking area; the projection of the transition hole (354) and the letter mark are located on the same straight line; a discharge port (36) is provided on the inner wall of the transition chamber (34); the discharge port (36) and the discharge groove (41) of the liquid discharge pipe (4) are located at the same height.

5. A quantitative dropper bottle according to claim 1, characterized in that: The quantitative chamber comprises a first chamber (31), a second chamber (32) and a third chamber (33) which are arranged in sequence in a circle, and the chamber volumes increase in direct proportion to each other; the upper side of the first chamber (31) corresponds to the first scale area (25), and a first material inlet (351) is provided on the lower side; the upper side of the second chamber (32) corresponds to the second scale area (26), and a second material inlet (352) is provided on the lower side; the upper side of the third chamber (33) corresponds to the third scale area (27), and a third material inlet (353) is provided on the lower side; and the scale lines corresponding to the quantitative chambers are all located in the middle of the scale areas.

6. A quantitative dropper bottle according to claim 5, characterized in that: The diameters of the first feed opening (351), the second feed opening (352), and the third feed opening (353) increase in direct proportion to each other.

7. A quantitative dropper bottle according to claim 2, characterized in that: The chamber volume of the second chamber (32) is twice that of the first chamber (31); and the chamber volume of the third chamber (33) is four times that of the first chamber (31).

8. A quantitative dropper bottle according to claim 5, characterized in that: The scale cover (2) further comprises a stop block which is fixedly arranged on the upper side of the scale cover (2), the stop block being at least partially located within the annular groove (22), and the stop block being located at the edge of the scale area, for limiting the relative rotation of the indicating rod (44).

9. A quantitative dropper bottle according to claim 1, characterized in that: A first through hole (21) is provided at the center of the scale cover (2); a second through hole (37) is provided at the center of the quantitative box (3); the first through hole (21) and the second through hole (37) are coaxially arranged, and the lower end of the liquid outlet tube (4) is arranged to penetrate the first through hole (21) and the second through hole (37).

10. A quantitative dropper bottle according to claim 1, characterized in that: The upper end opening of the liquid outlet pipe (4) is provided with a flange extending outwards for discharging liquid.

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