Liquid dropping assembly for synchronously adding multiple liquids

Abstract

The invention discloses a liquid dropping assembly capable of synchronously adding multiple liquids, and belongs to the technical field of liquid dropping. The liquid dropping assembly comprises a base plate, and a plurality of liquid dropping channels are formed in the base plate; the plurality of liquid dropping channels are not communicated with one another and are respectively communicated with corresponding external liquid; an inlet of the liquid dropping channel is located in the side wall of the base plate, and an outlet of the liquid dropping channel is located below the base plate. According to the liquid dropping assembly, the installation space is saved, the angle between the inlet and the outlet in the liquid dropping channel, the end face structure of the outlet, the arrangement mode of the outlets and the like are designed, the liquid dropping efficiency and the accuracy of the liquid dropping amount are improved, bubbles in liquid can be effectively removed, multiple kinds of liquid do not interfere with one another when dropping, and the liquid dropping efficiency is improved. Meanwhile, the liquid dropping assembly is wide in application range and can be applied to liquid feeding procedures of multiple industries.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of liquid dropping, and particularly relates to a liquid dropping assembly for synchronously adding multiple liquids. BACKGROUND

[0002] In industrial production, multiple liquids need to be added quantitatively at the same time or in sequence in many scenarios. The conventional method is to use a separate liquid dropping device for each liquid. However, this method is time-consuming, and when multiple liquids are added at the same time, a large space is occupied, which is difficult to meet the actual production needs.

[0003] For example, the patent application with the publication number CN108294788A discloses a liquid dropping device capable of quantitatively dropping liquid. The liquid dropping device comprises a left liquid storage component, a right liquid storage component and an insertion plate. The left liquid storage component and the right liquid storage component are provided with liquid storage holes, flow guide grooves and drainage grooves. When in use, the left liquid storage hole, the left flow guide groove, the right liquid storage hole and the right flow guide groove are all covered and sealed by the insertion plate. When in use, the height of the insertion plate is pulled upward according to the amount of liquid to be added, so that the corresponding number of liquid storage holes are exposed, and the amount of liquid to be added can be quantitatively determined. However, only one kind of liquid can be added by operating the device once. When multiple liquids need to be added, the device needs to be cleaned and operated repeatedly, which is low in dropping efficiency. SUMMARY

[0004] The purpose of the present application is to provide a liquid dropping assembly for synchronously adding multiple liquids to solve the technical problems mentioned in the background.

[0005] To achieve the above purpose, the present application discloses a liquid dropping assembly for synchronously adding multiple liquids, which comprises a substrate provided with a plurality of liquid dropping channels; the plurality of liquid dropping channels are not communicated with each other and are respectively communicated with corresponding external liquids; the inlets of the liquid dropping channels are located on the side wall of the substrate, and the outlets are located below the substrate.

[0006] Further, the outlets of the plurality of liquid dropping channels are uniformly arranged below the substrate.

[0007] Further, the outlets of the plurality of liquid dropping channels are irregularly, matrix-shaped, circularly or radially uniformly arranged below the substrate.

[0008] Further, the outlet of the liquid dropping channel is a columnar structure, the end of the columnar structure is a flat surface, an inclined surface or provided with a cross-shaped opening at the end, which can break the bubbles in the liquid during liquid dropping, effectively eliminate the gas in the liquid drops, and improve the liquid dropping accuracy.

[0009] Further, a groove is arranged below the substrate, and the outlets of the plurality of drop channels are located in the groove, and the plurality of drop channels extend to the groove along the sidewall of the substrate.

[0010] Further, two sidewalls of the groove are arranged to be inclined towards the outer sidewall of the substrate, and the outer sidewall of the substrate is arranged to be inclined towards the groove; the inlet of the drop channel is vertically arranged on the outer sidewall of the substrate, and the outlet of the drop channel is vertically arranged on the inner sidewall of the groove; the inlet of the drop channel is lower than the corresponding outlet, and the inlet to the outlet forms an inverted V-shaped design, and there is a highest point in the drop channel.

[0011] Further, the substrate comprises a first substrate and a second substrate, and the first substrate and the second substrate are connected through an angle adjusting mechanism; one sidewall of the groove is located below the first substrate, and the other sidewall is located below the second substrate.

[0012] Further, the angle adjusting mechanism comprises a first protrusion, a second protrusion, an internal hexagonal bolt and a nut; the first protrusion is arranged on the side surface of the first substrate facing the second substrate, the second protrusion is arranged on the side surface of the second substrate facing the first substrate, the structures of the first protrusion and the second protrusion are matched and can be connected with each other, and the internal hexagonal bolt is arranged in the through hole, and the nut is fixed.

[0013] Further, there is an included angle α between the two sidewalls of the groove, and the α = 60-90°.

[0014] Further, the groove is a stepped groove comprising a first stepped groove and a second stepped groove, the first stepped groove is arranged at the middle position of the bottom of the second stepped groove, and the second stepped groove is arranged in parallel with the first stepped groove; the outlets of the drop channels are uniformly arranged in the first stepped groove and the second stepped groove.

[0015] Compared with the prior art, the drop assembly for simultaneously adding multiple liquids has the following advantages:

[0016] (1) The drop assembly is provided with a plurality of drop channels which are not connected with each other, and a plurality of different liquids can be simultaneously or synchronously added as needed, thereby saving the installation space of the drop device and improving the drop efficiency.

[0017] (2) The outlet of the drop channel in the drop assembly can be selected to be a flat surface, an inclined surface or provided with a cross-shaped opening structure according to the type of the liquid drop, the surface tension and other requirements, so that the liquid drop is more easily discharged from the drop channel, and the air bubbles in the liquid drop are effectively eliminated.

[0018] (3) The drop assembly of the present application can adjust the angle between the outlet and the inlet of the drop channel by designing the included angle between the two side walls of the groove, thereby adjusting the inclination angle of the drop channel, and ensuring the normal dropping of the last drop when the dropping is completed, thereby improving the accuracy of the drop amount.

[0019] (4) The drop assembly of the present application can design the outlet of the drop channel in the groove according to the needs, and design the structure of the groove and the arrangement of the outlet, so that the drops between the multiple outlets of the drop channel do not interfere with each other when dropping, while meeting the assembly requirements of the drop assembly.

[0020] (5) The drop assembly of the present application has simple structure and wide application range, and can be applied in the liquid raw material feeding process of any industry such as water quality monitoring, chemical industry, medicine, food, etc. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 : First perspective structure diagram of the drop assembly in Example 1.

[0022] Figure 2 : Second perspective structure diagram of the drop assembly in Example 1.

[0023] Figure 3 : Partial sectional structure diagram of the drop assembly in Example 1.

[0024] Figure 4 : Structure diagram of the drop assembly in Example 1 in use state.

[0025] Figure 5 : Perspective structure diagram of the drop assembly in Example 2.

[0026] Figure 6 : Assembly drawing of the drop assembly in Example 2.

[0027] Figure 7 : First perspective structure diagram of the drop assembly in Example 3.

[0028] Figure 8 : Second perspective structure diagram of the drop assembly in Example 3.

[0029] Figure 9 : Partial sectional structure diagram of the drop assembly in Example 3.

[0030] Figure 10 : First perspective structure diagram of the drop assembly in Example 4.

[0031] Figure 11 : Second perspective structure diagram of the drop assembly in Example 4.

[0032] Figure 12 : Partial sectional structure diagram of the drop assembly in Example 4.

[0033] Figure 13 First perspective view of the drop assembly in Example 5.

[0034] Figure 14 Second perspective view of the drop assembly in Example 5.

[0035] Figure 15 Partial cutaway view of the drop assembly in Example 5.

[0036] Figure 16 First perspective view of the drop assembly with a smaller cross- sectional exit end opening in Example 6.

[0037] Figure 17 Second perspective view of the drop assembly with a smaller cross- sectional exit end opening in Example 6.

[0038] Figure 18 Partial cutaway view of the drop assembly with a smaller cross- sectional exit end opening in Example 6.

[0039] Figure 19 First perspective view of the drop assembly with a larger cross- sectional exit end opening in Example 6.

[0040] Figure 20 Second perspective view of the drop assembly with a larger cross- sectional exit end opening in Example 6.

[0041] Figure 21 Partial cutaway view of the drop assembly with a larger cross- sectional exit end opening in Example 6.

[0042] Figure 22 First perspective view of the drop assembly in Example 7.

[0043] Figure 23 Second perspective view of the drop assembly in Example 7.

[0044] Figure 24 Partial cutaway view of the drop assembly in Example 7.

[0045] Figure 25 First perspective view of the drop assembly in Example 8.

[0046] Figure 26 Second perspective view of the drop assembly in Example 8.

[0047] Figure 27 Partial cutaway view of the drop assembly in Example 8.

[0048] Figure 28 Top view of the drop assembly in Example 9.

[0049] Figure 29 Figure 9 is a bottom view of the drop assembly in Example 9.

[0050] Figure 30 Figure 10 is an assembled view of the drop assembly in use in Example 9.

[0051] Figure 31 Figure 11 is a perspective view of the drop assembly in use in Example 9.

[0052] Wherein, 1, substrate; 2, groove; 3, inlet; 4, outlet; 5, drop channel; 6, rubber tube; 7, external liquid pipeline; 101, first substrate; 102, second substrate; 103, first protrusion; 104, second protrusion; 105, hexagonal bolt; 106, nut; 201, first stepped groove; 202, second stepped groove; 301, first groove; 302, second groove; 303, cover plate. DETAILED DESCRIPTION

[0053] The technical solutions of the present application will be described in detail below through specific examples.

[0054] Example 1

[0055] As shown in Figure 1, a drop assembly for simultaneous addition of multiple liquids includes a substrate 1, which has one mounting hole reserved at each of the four corner positions of the substrate 1. Figures 1-4 The middle part of the substrate 1 is provided with a groove 2, and 10 groups of drop channels 5 that are not connected to each other are formed from the side wall of the substrate 1 to the groove 2. The 10 groups of drop channels 5 are evenly and symmetrically distributed on both sides of the groove 2, i.e., there are 5 groups of drop channels 5 on the left side and the right side of the groove 2.

[0056] The outer side wall of the substrate 1 is inclined at equal angles towards the groove 2, and the two side walls of the groove 2 are inclined at equal angles towards the outer side of the substrate 1. The inlet 3 of the drop channel 5 is located on the outer side wall of the substrate 1, and the inlet 3 is a columnar structure vertically arranged on the outer side wall of the substrate 1. The outlet 4 of the drop channel 5 is located on the inner side wall of the groove 2, and the outlet 4 is a columnar structure vertically arranged on the inner side wall of the groove 2. The inlet 3 of the drop channel 5 is lower than the outlet 4 of the drop channel 5, so the drop channel 5 is designed in an inverted V shape from the inlet 3 to the outlet 4, and there is a highest point in the drop channel 5.

[0057] There is an included angle α between the two side walls of the groove 2, and α = 60-90°. In a specific application scenario, α = 78°. The setting of the included angle α can minimize the surface tension between the liquid drop and the outlet 4, so that the liquid drop can quickly drop when the last drop is dropped, and the liquid drop can be prevented from adhering to the outlet 4, thereby ensuring the accuracy of the drop amount.

[0058]

[0059] ​In use, the dripping assembly of this embodiment 1 first connects a rubber tube 6 to the inlet 3, and then inserts an external liquid pipe 7 into the rubber tube 6 to prevent liquid leakage. During dripping, the liquid enters the dripping channel 5 from the external liquid pipe 7 through the inlet 3, rises to the highest point, falls from the highest point, and flows out through the outlet 4. The type and order of the dripping liquid can be selected according to actual needs, and up to 10 kinds of liquids can be dripped simultaneously, either at the same time or sequentially.

[0060] Example 2

[0061] like Figures 5-6 As shown, the multi-liquid synchronous dispensing dripping assembly in this embodiment 2 differs from that in embodiment 1 in that the substrate 1 is composed of a first substrate 101 and a second substrate 102 that can rotate relative to each other, connected by an angle adjustment mechanism, which can adjust the included angle α between the two sidewalls of the groove 2.

[0062] Specifically, the angle adjustment mechanism includes a first protrusion 103, a second protrusion 104, an internal hex bolt 105, and a nut 106. The first protrusion 103 is located on the side of the first substrate 101 facing the second substrate 102, and the second protrusion 104 is located on the side of the second substrate 102 facing the first substrate 101. The first protrusion 103 and the second protrusion 104 are structurally compatible and can be engaged with each other. Through holes are provided at corresponding positions on the first protrusion 103 and the second protrusion 104, and an internal hex bolt 105 is inserted through the through holes. The end of the internal hex bolt 105 is fitted with a nut 106, which can fix the first substrate 101 and the second substrate 102 together.

[0063] Depending on the application scenario, the included angle α between the first substrate 101 and the second substrate 102 can be adjusted to a suitable size. Then, the hex socket bolt 105 is passed through the through hole, and the nut 106 is tightened onto the end of the hex socket bolt 105 to fix the value of the included angle α between the first substrate 101 and the second substrate 102. When the angle needs to be adjusted, simply loosen the nut 106 and repeat the above operation.

[0064] Example 3

[0065] like Figures 7-9 As shown, a multi-liquid synchronous dispensing dripping assembly includes a substrate 1, with a mounting hole reserved at each of the four corners of the substrate 1.

[0066] The substrate 1 has a groove 2 in the middle, and eight sets of non-communicating drip channels 5 are opened from the side wall of the substrate 1 to the groove 2. The eight sets of drip channels 5 are symmetrically arranged on the left and right sides of the groove 2, that is, there are four sets of drip channels 5 on the left and right sides of the groove 2.

[0067] The inlet 3 of the drip channel 5 is located on the side wall of the substrate 1, and the outlet 4 is located at the bottom of the groove 2. The outlet 4 has a columnar structure with a protrusion vertically positioned at the bottom of the groove 2. The drip channel 5 has a vertically bent structure from the inlet 3 to the outlet 4, and the inlet 3 and outlet 4 of the drip channel 5 are vertically positioned.

[0068] In use, the dripping assembly of this embodiment 3 allows the external liquid pipe 7 to be directly inserted into the inlet 3. During dripping, the liquid enters the dripping channel 5 from the external liquid pipe 7 through the inlet 3, and then flows out through the outlet 4 along the dripping channel 5. The type and order of the liquid can be selected according to actual needs, and up to 8 liquids can be dripped simultaneously, either at the same time or sequentially.

[0069] Example 4

[0070] like Figures 10-12 As shown, the multi-liquid simultaneous dispensing dripping assembly in Example 4 differs from that in Example 3 in that:

[0071] There are 9 sets of drip channels 5. The outlets 4 of 3 sets of drip channels 5 are located in the groove 2, and the inlets 3 are located on the left side wall of the substrate 1. The outlets 4 of the other 3 sets of drip channels 5 are located below the substrate 1 and on the left side of the groove 2, and the inlets 3 are located on the left side wall of the substrate 1. The outlets 4 of the remaining 3 sets of drip channels 5 are located below the substrate 1 and on the right side of the groove 2, and the inlets 3 are located on the right side wall of the substrate 1.

[0072] Example 5

[0073] like Figures 13-15 As shown, the multi-liquid simultaneous dispensing dripping assembly in Example 5 differs from that in Example 3 in that:

[0074] There are 8 sets of drip channels 5. The outlets 4 of the drip channels 5 are evenly arranged in a circular shape at the bottom of the groove 2. The inlets 3 are respectively located on the side walls of the substrate 1. Among them, the inlets 3 of 3 sets of drip channels 5 are located on the left side wall of the substrate 1, the inlets 3 of 3 sets of drip channels 5 are located on the right side wall of the substrate 1, and the inlets 3 of 2 sets of drip channels 5 are respectively located on the front side wall and the rear side wall of the substrate 1.

[0075] Example 6

[0076] like Figures 16-21 As shown, the multi-liquid simultaneous dispensing dripping assembly in Example 6 differs from that in Example 3 in that:

[0077] The groove 2 provided on the substrate 1 is a stepped groove, including a first stepped groove 201 and a second stepped groove 202. The first stepped groove 201 is opened at the bottom middle position of the second stepped groove 202, and the second stepped groove 202 is arranged parallel to the first stepped groove 201.

[0078] There are a total of 9 sets of dripping channels 5. The outlets 4 of 3 sets of dripping channels 5 are located in the first stepped groove 201, and the inlets 3 are located on the left side wall of the substrate 1. The outlets 4 of the other 3 sets of dripping channels 5 are located in the second stepped groove 202 on the left side of the first stepped groove 201, and the inlets 3 are located on the left side wall of the substrate 1. The outlets 4 of the remaining 3 sets of dripping channels 5 are located in the second stepped groove 202 on the right side of the first stepped groove 201, and the inlets 3 are located on the right side wall of the substrate 1.

[0079] In this embodiment 4, the outlet 4 of the drip channel 5 has a cross-shaped opening structure at the end. When the droplet flows out, it can reduce the surface tension of the droplet, making it easier for the liquid to drip from the outlet 4, and the air bubbles in the droplet are also easier to expel.

[0080] In practical applications, the size of the cross-shaped opening structure can be selected according to needs, for example... Figures 16-18 The case with a smaller cross opening is given. Figures 19-21 The case with a larger cross opening is given.

[0081] Example 7

[0082] like Figures 22-24 As shown, the multi-liquid synchronous dispensing dripping assembly in this embodiment 7 differs from that in embodiment 6 in that the outlet 4 of the dripping channel 5 has a beveled structure. The beveled structure design facilitates the dripping of liquid and the discharge of air bubbles from the liquid droplets.

[0083] Example 8

[0084] like Figures 25-27 As shown, in this embodiment 8, the multi-liquid synchronous addition dripping component has a shorter second stepped groove 202 than the first stepped groove 201 compared to embodiment 6, meaning that the second stepped groove 202 is located inside the first stepped groove 201.

[0085] In the use of the dripping components in the above embodiments 1-8, when different liquids need to be added, the corresponding dripping channel 5 can be rinsed with a cleaning agent and then rinsed with the liquid to be added before adding other liquids; the same applies when the dripping component needs to be replaced.

[0086] Example 9

[0087] like Figures 28-31 As shown, a multi-liquid synchronous dispensing dripping assembly includes a substrate 1, with a mounting hole reserved at each of the four corners of the substrate 1.

[0088] A first groove 301 is formed above the substrate 1, and a second groove 302 is formed below the substrate 1. The corresponding two ends of the first groove 301 are open structures. The two openings of the first groove 301 are designed to be inclined downward relative to the bottom of the substrate 1, forming the inlet 3 of the drip channel 5.

[0089] A through hole is provided at the bottom of the first groove 301, which communicates with the second groove 302. The through hole forms the outlet 4 of the drip channel 5. There are 8 outlets 4, which are randomly and evenly distributed at the bottom of the first groove 301 and the second groove 302, forming 8 sets of drip channels 5.

[0090] In use, the external liquid pipe 7 is inserted into the outlet 4 of the drip channel 5 at the bottom of the first groove 301 through the inlet 3 (i.e., the openings on both sides of the first groove 301), and the length of the external liquid pipe 7 inserted into the outlet 4 is adjusted as needed.

[0091] In embodiment 9, in order to fix the external liquid pipe 7, a cover plate 303 is provided on the top of the substrate 1. The cover plate 303 is adapted to the structure of the first groove 301. Mounting holes are provided at corresponding positions of the cover plate 303 and the first groove 301, so that the cover plate 303 can be covered on the first groove 301. When the cover plate 303 is covered on the first groove 301, there is a gap between the bottom of the cover plate 303 and the bottom of the first groove 301, which can prevent the external liquid pipe 7 from being squeezed, thereby ensuring the normal flow of liquid.

[0092] In this invention, a specific application scenario is water quality monitoring. The external liquids include the water sample to be tested, pure water, and standard solutions, each connected to a dripping channel. A specific amount of liquid is added to a mixing cup via the dripping assembly according to the dripping sequence. After thorough mixing, the mixture is sent to a water quality monitor for analysis and monitoring. Using the dripping assembly of this invention improves dripping efficiency and accuracy, thereby enhancing the efficiency and accuracy of water quality monitoring.

[0093] In other application scenarios, such as the liquid raw material feeding process in the chemical, pharmaceutical, and food industries, the dripping component of this invention can be used to add liquid raw materials, which can greatly improve the dripping efficiency of liquid raw materials and ensure dripping accuracy.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-liquid simultaneous dispensing dripping assembly, characterized in that: The device includes a substrate on which a plurality of droplet channels are provided; the plurality of droplet channels are not interconnected with each other, and each is connected to a corresponding external liquid; the inlet of the droplet channel is located on the side wall of the substrate, and the outlet is located below the substrate.

2. The multi-liquid simultaneous dispensing dripping assembly as described in claim 1, characterized in that: The outlets of the multiple droplet channels are evenly arranged below the substrate.

3. The multi-liquid simultaneous dispensing dripping assembly as described in claim 2, characterized in that: The outlets of the multiple droplet channels are arranged in an irregular, matrix-shaped, circular, or radial pattern below the substrate.

4. The multi-liquid simultaneous dispensing dripping assembly as described in claim 1, characterized in that: The outlet of the drip channel is a columnar structure, and the end of the columnar structure is a flat surface, a beveled surface, or has a cross-shaped opening at the end.

5. The multi-liquid simultaneous dispensing dripping assembly as described in claim 1, characterized in that: A groove is provided below the substrate, and the outlets of the plurality of droplet channels are located in the groove. The plurality of droplet channels extend along the sidewall of the substrate into the groove.

6. The multi-liquid simultaneous dispensing dripping assembly as described in claim 5, characterized in that: The two sidewalls of the groove are inclined toward the outer sidewall of the substrate, and the outer sidewall of the substrate is inclined toward the groove; the inlet of the dripping channel is vertically disposed on the outer sidewall of the substrate, and the outlet of the dripping channel is vertically disposed on the inner sidewall of the groove; the inlet of the dripping channel is lower than the corresponding outlet, and the design from the inlet to the outlet is an inverted V-shape, and there is a highest point in the dripping channel.

7. The multi-liquid simultaneous dispensing dripping assembly as described in claim 6, characterized in that: The substrate includes a first substrate and a second substrate, which are connected by an angle adjustment mechanism; one sidewall of the groove is located below the first substrate, and the other sidewall is located below the second substrate.

8. The multi-liquid simultaneous dispensing dripping assembly as described in claim 7, characterized in that: The angle adjustment mechanism includes a first protrusion, a second protrusion, an internal hex bolt, and a nut; the first protrusion is disposed on the side of the first substrate facing the second substrate, and the second protrusion is disposed on the side of the second substrate facing the first substrate. The structures of the first protrusion and the second protrusion are adapted to each other and can be engaged and connected; through holes are provided at corresponding positions on the first protrusion and the second protrusion, and the internal hex bolt passes through the through holes and is fixed by the nut.

9. The multi-liquid simultaneous dispensing dripping assembly as described in claim 5 or 6, characterized in that: There is an included angle α between the two sidewalls of the groove, where α = 60-90°.

10. The multi-liquid simultaneous dispensing dripping assembly as described in claim 5, characterized in that: The groove is a stepped groove, including a first stepped groove and a second stepped groove. The first stepped groove is located at the bottom middle position of the second stepped groove, and the second stepped groove is arranged parallel to the first stepped groove. The outlets of the dripping channel are evenly distributed in the first stepped groove and the second stepped groove.

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