CN218741881U

CN218741881U - Liquid dropping device

Info

Publication number: CN218741881U
Application number: CN202221776657.3U
Authority: CN
Inventors: 黄超强; 钟细明; 陈炎丰
Original assignee: Guangdong Benyan New Material Technology Co ltd
Current assignee: Guangdong Benyan New Material Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-03-28
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to a dropping liquid device, this dropping liquid device are including bearing box and dropping liquid ware, and bearing box has the bearing space that is used for bearing liquid and the fixed part that is used for fixed dropping liquid ware, and the dropping liquid ware passes through the fixed part to be fixed on bearing box, and the dropping liquid ware is equipped with the perpendicular dropping liquid needle of putting, and the dropping liquid needle is aimed at downwards including the stock solution pipe of storing the dropping liquid and the dripper of switch-on in the stock solution pipe below the dripper bearing space, the volume ratio of dripper and stock solution pipe is 0.005 ~ 0.030. The dropping device has simple structure and low manufacturing cost; experiments prove that the volume ratio of the dripper of the dripping device to the liquid storage pipe is 0.005-0.030, the dripping liquid stored in the liquid storage pipe can automatically drip out of the dripper drop by drop without manpower or machines, and the dripping speed is reasonable; the dropping device is fixed on the bearing box and is not held by hands.

Description

Liquid dropping device

Technical Field

The utility model relates to a microcapsule preparation technical field, concretely relates to dropping liquid device.

Background

The existing essential oil microspheres take essential oil as a core material and take a high polymer material as a wall material to embed the core material. The common preparation method comprises the following operations: the essential oil, the high molecular material and the emulsifier are uniformly mixed to obtain emulsion, the emulsion is dripped into the cross-linking agent by using a rubber head dropper or an injector, the emulsion is cross-linked and solidified under the action of the cross-linking agent solution to obtain semi-finished essential oil microspheres, and the semi-finished essential oil microspheres are filtered and dried to obtain the finished essential oil microspheres. During the preparation, the emulsion is added dropwise to the crosslinking agent by the following two methods: (1) The method is characterized in that a person manually operates a rubber head dropper or a syringe to suck the emulsion into the rubber head dropper or the syringe and then drops the emulsion into the cross-linking agent dropwise, and the method has the defects of time consumption and low long acting rate. (2) The emulsion is injected into the cross-linking agent by using a specific injector, and a plurality of emulsion droplets can be injected by injecting the injector at one time, so that the efficiency can be improved, and the defect is that the manufacturing cost of the injector is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dropping device which can automatically drop dropping liquid drop by drop without the help of manpower or other injection instruments; overcomes the defects of the method (2) in the background art and has low manufacturing cost.

In order to achieve the above object, the utility model provides a dropping device, including bearing box and drip ware, bearing box has the fixed part that is used for bearing the weight of the bearing space of liquid and is used for fixed drip ware, and the drip ware passes through the fixed part to be fixed on bearing box, and the drip ware is equipped with the perpendicular drip needle of putting, and the drip needle is aimed at downwards including the stock solution pipe of storing the dropping liquid and the dripper of switch-on in the stock solution pipe below, the dripper bearing space, the volume ratio of dripper and stock solution pipe is 0.005 ~ 0.030.

Further, the plurality of the drip needles are arranged in parallel.

Furthermore, the dropping device is provided with a liquid supply cavity for supplying dropping liquid, a liquid inlet of a liquid storage pipe of the dropping needle faces upwards and is arranged at the top of the liquid storage pipe, and the liquid storage pipe is communicated with the liquid supply cavity through the liquid inlet.

Furthermore, the liquid storage pipe and the dripper are both in a circular pipe shape, the inner diameter of the liquid storage pipe is 10-15 mm, the length of the liquid storage pipe is 50-70 mm, and the inner diameter of the dripper is 2.8-3.2 mm, and the length of the dripper is 10-15 mm.

Furthermore, the liquid supply cavity bottom wall comprises a mounting plate, the liquid storage pipe of the liquid dropping needle is provided with an outer supporting edge at the top of the liquid storage pipe, the mounting plate is provided with mounting holes corresponding to the number of the liquid dropping needles, the liquid storage pipe of the liquid dropping needle is arranged in the corresponding mounting holes in a penetrating manner, and the outer supporting edge of the liquid dropping needle is supported on the mounting plate.

Furthermore, a positioning plate is supported on the mounting plate, positioning holes corresponding to the number of the liquid dropping needles are formed in the positioning plate, the size of each positioning hole is matched with the outer supporting edge, and the top of the liquid storage pipe and the outer supporting edge are positioned in the corresponding positioning holes.

Furthermore, the mounting plate and the positioning plate are connected in a waterproof sealing manner, and the mounting plate and the positioning plate are respectively connected with the outer supporting edge in a waterproof sealing manner.

Furthermore, a pressing plate is arranged to press the positioning plate and the outer supporting edge of each liquid storage tube of the dropping needle so as to block a gap between the wall of the positioning hole and the outer supporting edge, liquid passing holes corresponding to the number of the dropping needles are formed in the pressing plate, and the liquid passing holes are aligned to liquid inlets of the liquid storage tubes of the corresponding dropping needles.

Furthermore, the positioning plate and the outer supporting edge are respectively connected with the pressure plate in a waterproof sealing mode.

Furthermore, the top opening of the dropping device is used for adding emulsifier into the liquid supply cavity.

Furthermore, the top of the bearing box is provided with an opening for adding liquid into the bearing space, the top of the side wall of the bearing box is used as the fixed part, the bottom wall of the liquid supply cavity is supported at the top of the side wall of the bearing box and covers the opening of the bearing box, the liquid dropper is fixed on the bearing box in such a way, and the dropper of the liquid dropper enters the bearing box.

Furthermore, the fixing part comprises a baffle arranged on the outer side of the top of the bearing box, and the top of the baffle is higher than the top of the bearing box and is blocked on the outer side of the drip device.

Further, above-mentioned dropping liquid device is the dropping liquid device of preparation essential oil microballon, the bearing box is the bearing box that is used for bearing cross-linking agent solution, the dripper is the dripper that is used for dropwise add the emulsion.

Has the advantages that:

the liquid dropping device has simple structure and low manufacturing cost, and solves the defects of the method (2) in the background technology; experiments prove that the volume ratio of the dripper of the dripping device to the liquid storage pipe is 0.005-0.030, the dripping liquid stored in the liquid storage pipe can be automatically dripped from the dripper drop by drop without the help of manpower or machines, and the dripping speed is reasonable; the dropping device is fixed on the bearing box and is not held by hands.

Drawings

Fig. 1 is a three-dimensional exploded view of the dropping device of the present invention;

fig. 2 is a longitudinal section view of the liquid dropping device of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is an exploded perspective view of a drip filter.

Detailed Description

The invention will be described in further detail with reference to specific embodiments.

Example 1:

the dropping device is shown in fig. 1 and 2, and comprises a bearing box 2 and a dropping device 1 detachably fixed on the bearing box 2. The liquid dropper 1 is provided with a liquid supply cavity 11 for supplying liquid drops, the top of the liquid supply cavity 11 is an opening of the liquid dropper 1, and a plurality of liquid dropping needles 13 which are vertically arranged are arranged below the bottom wall of the liquid supply cavity 11 in parallel; the dropper 13 includes a liquid storage tube 131 and a dropper 132 connected to the lower portion of the liquid storage tube 131, and the top of the liquid storage tube 131 is provided with a liquid inlet which is upwardly connected to the liquid supply chamber 11. The liquid storage tube 131 and the dripper 132 are both in a circular tube shape, the inner diameter of the liquid storage tube 131 is 13mm, the length of the liquid storage tube 131 is 60mm, the inner diameter of the dripper 132 is 3.2mm, the length of the dripper 132 is 10mm, the volume of the dripper 132 is 80.42 cubic millimeters, the volume of the liquid storage tube 131 is 7963.94 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage tube 131 is 0.01.

Referring to fig. 1, the carrying box 2 encloses a carrying space 22 for carrying liquid, the top of the box body is open, a baffle 21 is arranged outside the box body, and the top of the baffle 21 is higher than the carrying box 2. The dropping liquid device of this embodiment is used for preparing the essential oil microballon, and the dropping liquid device is whole to be made by the ya keli material, and the liquid that bears case 2 and bear is specifically cross-linking agent solution, and the dropping liquid that supplies the liquid cavity 11 supply is specifically by the emulsion that essential oil, macromolecular material and emulsifier mix and obtain. When an operator prepares the essential oil microspheres, firstly, the essential oil, the high polymer material and the emulsifier are uniformly mixed to obtain an emulsion, then, by using the dropping device of the embodiment, the cross-linking agent solution is added into the bearing space 22 through the opening at the top of the bearing box 2, so that the liquid level H of the cross-linking agent solution reaches 50mm, then, the dropping device 1 is placed on the bearing box 2, so that the bottom wall of the liquid supply cavity 11 of the dropping device 1 is supported at the top of the side wall of the bearing box 2, and the outer side of the bottom wall is blocked by the baffle 21 to realize fixation, in this state, the bottom wall of the liquid supply cavity 11 of the dropping device 1 covers the opening of the bearing box 2, the dropping head 132 of the dropping needle 13 enters the bearing box 2 to be aligned with the bearing space 22 (see fig. 2) downwards, the distance H from the outlet 1321 of the dropping head 132 to the liquid level of the cross-linking agent solution in the bearing space 22 is 70mm, then, the emulsion as the dropping liquid is added into the liquid supply cavity 11 through the opening of the dropping needle, the liquid supply cavity 11 is supplied to the liquid storage tube 131, and then flows into the outlet 1321 of the cross-linking agent solution in the cross-linking microsphere cavity 22, and the emulsion is solidified into the cross-linking agent solution.

As shown in fig. 4, the dropping needle 13 of the dropper 1 of this embodiment is provided with an outer supporting edge 133 at the top of the liquid storage tube 131, the bottom wall of the liquid supply chamber 11 includes a mounting plate 12, a positioning plate 14 and a pressing plate 15, the mounting plate 12 is provided with mounting holes 121 corresponding to the number of the dropping needles 13, the positioning plate 14 is provided with positioning holes 141 corresponding to the number of the dropping needles 13, the size of the positioning holes 141 matches with the outer supporting edge 133, and the pressing plate 15 is provided with liquid passing holes 151 corresponding to the number of the dropping needles 13. When a manufacturing worker manufactures the drip chamber 1, starting from the state shown in fig. 4, waterproof glue is coated on the mounting plate 12 or the positioning plate 14, the positioning plate 14 is aligned with the mounting plate 12 for sealing and bonding, the positioning plate 14 is supported on the mounting plate 12, then waterproof glue is respectively coated on the overlapping area of the mounting plate 12 and the positioning hole 141 and the wall of the positioning hole 141, the liquid storage tube 131 of each drip needle 13 sequentially penetrates through each mounting hole 121 of the mounting plate 12, the outer supporting edge 133 of the drip needle 13 is supported on the mounting plate 12 and is positioned in the corresponding positioning hole 141 together with the top of the liquid storage tube 131, and thus, the mounting plate 12 and the positioning plate 14 are respectively sealed and bonded with the outer supporting edge 133; then, waterproof glue is coated on the top of the outer supporting edge 133 and the positioning plate 14, the pressing plate 15 is aligned with the outer supporting edge 133 and the positioning plate 14 for sealing and bonding, the pressing plate 15 presses the positioning plate 14 and the outer supporting edge 133 of the liquid storage tube 131 of each drip needle 13 to block the gap between the hole wall of the positioning hole 141 and the outer supporting edge 133, the liquid passing hole 151 of the pressing plate 15 is aligned with the liquid inlet of the liquid storage tube 131 of the corresponding drip needle 13, and then the side wall of the liquid supply cavity 11 is adhered to the periphery of the bottom wall of the liquid supply cavity by the waterproof glue, so that the liquid dropper 1 in fig. 1 and 2 is obtained.

In this embodiment, the dropping device is integrally made of an acrylic material, and accordingly, the acrylic glue is used as the waterproof glue, so that the acrylic material is high in mechanical strength and easy to process and customize, and can keep stable in property even in the presence of water for a long time. In other embodiments, the dropping device may be made of stainless steel, PVC, or other materials that can maintain stable properties and have sufficient strength when meeting water instead of using an acrylic material, and the dropping device 1 may be formed by sequentially bonding the mounting plate 12, the dropping needle 13, the positioning plate 14, the pressing plate 15, and the sidewall of the liquid supply cavity 11, which are independent of each other, instead of using a single material, and may be integrally cast or stamped.

Example 2:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, the inner diameter of the liquid storage tube 131 is 10mm, the volume of the liquid storage tube 131 is 4712.39 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage tube 131 is 0.017.

Example 3:

the embodiment is substantially the same as embodiment 1, except that in the embodiment, the inner diameter of the liquid storage tube 131 is 15mm, the volume of the liquid storage tube 131 is 10602.88 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage tube 131 is 0.008.

Example 4:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, the length of the reservoir 131 is 50mm, the volume of the reservoir 131 is 6636.61 cubic millimeters, and the volume ratio of the dripper 132 to the reservoir 131 is 0.012.

Example 5:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, the length of the reservoir 131 is 70mm, the volume of the reservoir 131 is 9291.26 cubic millimeters, and the volume ratio between the drippers 132 and the reservoir 131 is 0.009.

Example 6:

this embodiment is substantially the same as embodiment 1 except that in this embodiment, the length of the dripper 132 is 13mm, the volume of the dripper 132 is 104.55 cubic millimeters, and the volume ratio of the dripper 132 to the reservoir 131 is 0.013.

Example 7:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, the length of the dripper 132 is 15mm, the volume of the dripper 132 is 120.64 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.015.

Example 8:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, the inner diameter of the dripper 132 is 2.8mm, the volume of the dripper 132 is 61.58 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.008.

Example 9:

this embodiment is substantially the same as embodiment 1 except that in this embodiment, the inner diameter of the dripper 132 is 3.0mm, the volume of the dripper 132 is 70.69 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.009.

Example 10:

this embodiment is substantially the same as embodiment 1 except that the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.005.

Example 11:

this example is substantially the same as example 1, except that the volume ratio of the dripper 132 to the reservoir 131 is 0.030 in this example.

Example 12:

this example is substantially the same as example 1 except that in this example, when the operator prepares the essential oil microspheres, the liquid level height h of the crosslinking agent solution added into the supporting space 22 is 40mm.

Example 13:

this embodiment is substantially the same as embodiment 1 except that in this embodiment, the distance H between the surface of the crosslinker solution in the supporting space 22 and the outlet 1321 of the dripper 132 is 60mm.

Comparative example 1:

this comparative example is substantially the same as example 1 except that in this comparative example, the inner diameter of the reservoir 131 is 20mm, the volume of the reservoir 131 is 18849.56 cubic millimeters, and the volume ratio of the dropper 132 to the reservoir 131 is 0.004.

Comparative example 2:

this comparative example is substantially the same as example 1 except that in this comparative example, the length of the reservoir 131 is 150mm, the volume of the reservoir 131 is 19909.84 cubic millimeters and the volume ratio of the dripper 132 to the reservoir 131 is 0.004.

Comparative example 3:

this comparative example is substantially the same as example 1 except that in this comparative example, the length of the dripper 132 is 4mm, the volume of the dripper 132 is 32.17 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.004.

Comparative example 4:

this comparative example is substantially the same as example 1 except that in this comparative example, the inner diameter of the dripper 132 is 1.8mm, the volume of the dripper 132 is 25.45 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.003.

Comparative example 5:

this comparative example is substantially the same as example 1 except that in this comparative example, the inner diameter of the reservoir 131 is 5mm, the volume of the reservoir 131 is 1178.10 cubic millimeters, and the volume ratio of the dripper 132 to the reservoir 131 is 0.068.

Comparative example 6:

this comparative example is substantially the same as example 1 except that in this comparative example, the length of the reservoir 131 is 15mm, the volume of the reservoir 131 is 1990.98 cubic millimeters, and the volume ratio of the dripper 132 to the reservoir 131 is 0.040.

Comparative example 7:

this comparative example is substantially the same as example 1 except that in this comparative example, the length of the dripper 132 is 32mm, the volume of the dripper 132 is 257.36 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.032.

Comparative example 8:

this comparative example is substantially the same as example 1 except that in this comparative example, the inner diameter of the dripper 132 is 6mm, the volume of the dripper 132 is 282.60 cubic millimeters, and the volume ratio of the dripper 132 to the liquid storage pipe 131 is 0.036.

Comparative example 9:

this comparative example is substantially the same as example 1 except that in this comparative example, the liquid level h of the crosslinking agent solution to be fed into the supporting space 22 when the operator prepares the essential oil microspheres is 20mm.

Comparative example 10:

this embodiment is substantially the same as embodiment 1 except that in this embodiment, the distance H between the surface of the crosslinker solution in the supporting space 22 and the outlet 1321 of the dripper 132 is 40mm.

To verify the effect of comparing the essential oil microspheres prepared in examples 1 to 13 and comparative examples 1 to 10, essential oil microspheres were prepared by using the solutions of examples 1 to 13 and comparative examples 1 to 10, and the emulsion was observed to drip from the dripper 132 of the dripper 1 and to drip into the crosslinker solution in the carrying space 22, and the results were recorded as shown in the following table:

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the results are as follows:

in the dropping unit 1 of the dropping device of comparative examples 1 and 2, the volume ratio of the dripper 132 to the liquid storage pipe 131 is too small due to the too large volume of the liquid storage pipe 131, in the dropping unit 1 of the dropping device of comparative example 3, the volume ratio of the dripper 132 to the liquid storage pipe 131 is too small due to the too small length of the dripper 132, and in all of these three comparative examples, the emulsion is continuously discharged from the dripper 132, and the droplets cannot be formed and dropped dropwise, and therefore, the emulsion dropped into the cross-linking agent solution cannot form a microsphere structure. In the dropping device 1 of the dropping device of the comparative example 4, the volume ratio of the dropping head 132 and the liquid storage tube 131 is too small due to too small inner diameter of the dropping head 132, the dropping speed of the emulsion from the dropping head 132 is very slow, which affects the preparation efficiency of the essential oil micro-spheres, unlike the comparative examples 1 to 3.

In the dripper 1 of the dripping device of comparative examples 5 and 6, the volume ratio of the dripper 132 to the liquid pipe 131 is too large due to the too small volume of the liquid pipe 131, and in the dripper 1 of the dripping device of comparative example 7, the volume ratio of the dripper 132 to the liquid pipe 131 is too large due to the too large length of the dripper 132, and in all of the three comparative examples, the emulsion is dripped from the dripper 132 at a very slow speed, which affects the preparation efficiency of the essential oil microspheres. In the dropping unit 1 of the dropping device of comparative example 8, the volume ratio of the dropping head 132 and the reservoir 131 is too large due to the too large inner diameter of the dropping head 132, and the emulsion is dropped from the dropping head 132, unlike in comparative examples 5 to 7, and the emulsion is continuously discharged from the dropping head 132, and the drop cannot be formed and dropped dropwise, and the emulsion dropped into the crosslinking agent solution cannot be formed into a microsphere structure.

The emulsion drops need a certain time to be cross-linked and solidified when falling into the cross-linking agent solution, the liquid level of the cross-linking agent solution added into the bearing space 22 in the comparative example 9 is too small, the emulsion drops do not have enough buffering time to buffer the impact force caused by the dropping when falling into the cross-linking agent solution, when the surface of the emulsion drops which are dropped in the previous time is not solidified, the emulsion drops which are dropped in the next time are followed, so that the emulsion drops which are dropped in the previous time are adhered, and the emulsion drops which are adhered together cannot form independent microspheres.

The emulsion droplets need to have enough impact force to be completely collided into the cross-linking agent solution, and the distance between the cross-linking agent solution in the bearing space 22 of the comparative example 10 and the outlet 1321 of the dripper 132 is too small, so that the impact force is not enough when the emulsion droplets drop to the cross-linking agent, and the emulsion droplets cannot be completely collided into the cross-linking agent solution, and thus a complete microsphere structure cannot be formed.

The essential oil microspheres are prepared by using the schemes of the embodiments 1 to 13, the volume ratio of the dripper 132 of the dripper 1 to the liquid storage pipe 131 in the dripping device of each embodiment is reasonable, emulsion can form droplets through the dripper 132 of the dripper 1 and drip into a cross-linking agent solution, and the dripping speed of the emulsion from the dripper 132 is normal, so that the conventional preparation requirements can be met; the height H of the cross-linking agent solution added into the supporting space 22 is reasonable, and the distance H between the cross-linking agent solution level and the outlet 1321 of the dripper 132 is also reasonable, so that emulsion droplets dropped into the cross-linking agent solution can be cross-linked and solidified into an independent microsphere structure in the cross-linking agent solution. The utility model provides an in embodiment 1 ~ 13, the drip ware 1 all has a plurality of drip needles 13 that parallel, supplies liquid chamber 11 can supply emulsion for these drip needles 13 simultaneously, and the emulsion among these drip needles 13 can be simultaneously through the cross-linking agent solution that dripped in bearing space 22 of dripper 132, compares that a hand-held rubber head burette of prior art people or syringe drip gradually, has higher dropwise add efficiency.

The above description is only the embodiments of the present invention, and the scope of protection is not limited thereto. The insubstantial changes or substitutions will now be made by those skilled in the art based on the teachings of the present invention, which fall within the scope of the claims.

Claims

1. The utility model provides a dropping liquid device, a serial communication port, including bearing box (2) and drip ware (1), bearing box (2) have be used for bearing the weight of liquid space (22) and be used for the fixed part of fixed drip ware (1), drip ware (1) is fixed on bearing box (2) through the fixed part, drip ware (1) is equipped with vertical dropping liquid needle (13) of putting, dropping liquid needle (13) are including stock solution pipe (131) of storing the dropping liquid and dripper (132) of switch-on in stock solution pipe (131) below, dripper (132) aim at downwards bearing space (22), the volume ratio of dripper (132) and stock solution pipe (131) is 0.005 ~ 0.030.

2. A dripping device according to claim 1, characterized in that the dripping needle (13) is provided in a plurality in parallel.

3. A dripping device according to claim 1, characterized in that the dripping device (1) has a liquid supply chamber (11) for supplying dripping liquid, and the dripping needle (13) has a liquid inlet opening of the liquid storage tube (131) facing upwards, which opens at the top of the liquid storage tube (131), through which opening the liquid storage tube (131) opens into the liquid supply chamber (11).

4. A dropper device according to claim 3 wherein the drip needle (13) is provided in a plurality of juxtaposed relationship.

5. A dripping device according to claim 4, wherein the reservoir (131) and the dripper (132) are both circular tubular, the reservoir (131) having an internal diameter of 10-15 mm and a length of 50-70 mm, the dripper (132) having an internal diameter of 2.8-3.2 mm and a length of 10-15 mm.

6. A dropper device according to claim 4, wherein the bottom wall of the liquid supply chamber (11) comprises a mounting plate (12), the dropper (13) comprises an outer rim (133) on the top of the reservoir (131), the mounting plate (12) being provided with a number of mounting holes (121) corresponding to the number of droppers (13), the reservoirs (131) of the droppers (13) being inserted into the corresponding mounting holes (121), the outer rim (133) being supported on the mounting plate (12).

7. A dripping device according to claim 6, wherein a positioning plate (14) is carried by the mounting plate (12), the positioning plate (14) having positioning holes (141) corresponding to the number of dripping needles (13), the positioning holes (141) being dimensioned to match the outer rims (133), the top and outer rims (133) of the reservoir (131) being positioned in the corresponding positioning holes (141).

8. A dripping device according to claim 7, wherein the mounting plate (12) and the spacer plate (14) are connected in a watertight manner, and the mounting plate (12) and the spacer plate (14) are connected in a watertight manner to the outer rim (133).

9. A dropper device according to claim 7, wherein the pressure plate (15) is arranged to press against the retaining plate (14) and against the outer rim (133) of the reservoir (131) of each dropper (13) to block the gap between the wall of the retaining hole (141) and the outer rim (133), the pressure plate (15) being provided with a number of dispensing holes (151) corresponding to the number of droppers (13), the dispensing holes (151) being aligned with the inlet of the reservoir (131) of the respective dropper (13).

10. A dripping device according to claim 9, characterized in that the retaining plate (14) and the outer rim (133) are each connected to the pressure plate (15) in a watertight manner.

11. A dripping device according to claim 3, wherein the top opening of the dripping device (1) is provided for introducing emulsifier into the feed chamber (11).

12. A dropper assembly according to claim 3, wherein the top of the container (2) is open for liquid to enter the receiving space (22), the top of the side wall of the container (2) serves as the fixing means, the bottom wall of the liquid supply chamber (11) is supported on the top of the side wall of the container (2) and covers the opening of the container (2), and the dropper (1) is fixed to the container (2) in such a way that the dropper (132) of the dropper needle (13) enters the container (2).

13. A dripping device according to claim 12, wherein the holder comprises a baffle (21) arranged outside the top of the carrier tank (2), the top of the baffle (21) being higher than the top of the carrier tank (2) and being arranged outside the drip emitter (1).

14. The dripping device according to any of the claims 1 to 13 wherein the carrier tank (2) is a carrier tank (2) for carrying a solution of the crosslinking agent and the dripping device (1) is a dripping device (1) for dripping an emulsion.