Quantitative dripping nozzle for automatic dripping device

Abstract

The utility model relates to a quantitative dripping nozzle for an automatic dripping device. The quantitative dripping nozzle comprises a sample bottle, a special-shaped bottle cap and a special-shaped bottle cap, when the sample bottle is used, the sample bottle is inverted and located above the bottle cap, and an external thread is arranged at a bottle opening of the sample bottle; an internal thread connected with the sample bottle is arranged at the upper part of the special-shaped bottle cap; an air outlet hole and an air inlet hole are formed in the part, right opposite to the bottle opening of the sample bottle, of the upper section of the special-shaped bottle cap, and a drawing channel is formed in one side where the air inlet hole is located; and a dropping pipette extending downwards is arranged on the lower end surface of the special-shaped bottle cap on the lower side of the air outlet hole. According to the quantitative dripping nozzle for the automatic dripping device, the sample bottle is connected with the automatic dripping device, quantitative dripping is achieved through pulling control of the pulling core, the dripping amount can be adjusted, and manual work is liberated; spilling is not prone to occurring during dropwise adding, and the experiment accuracy is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic dripping, in particular to a quantitative dripping nozzle for an automatic dripping device. Background Art

[0002] There are dozens of sample slots on the sample plate. When working at the same time, the drug solution needs to be dripped into the sample slots one by one. The number of sample slots is large, and manual aspiration is generally used. A handheld dropper is used to drip in sequence, with one drop, two drops or more drops dripped into one slot. The dropper is flexibly adjusted according to needs, and the handheld dropper is manually controlled to drip quantitatively. The workload is large, and it is easy to drip wrongly, leak drops or drip heavily, resulting in inaccurate experiments. It is also easy to spill when moving the dropper, resulting in waste of drug solution.

[0003] For this purpose, an automatic dropper is invented. The connection between the automatic dropper and the sample bottle requires a dropper as a medium. A quantitative dropper for the automatic dropper is designed to solve the above problem. Summary of the invention

[0004] In order to overcome the above shortcomings, the utility model provides a quantitative drip nozzle for an automatic dripper, which comprises a sample bottle, a special-shaped bottle cap and a special-shaped bottle cap;

[0005] When in use, the sample bottle is inverted and located above the bottle cap, and an external thread is provided at the mouth of the sample bottle;

[0006] The upper part of the special-shaped bottle cap is provided with an internal thread connected to the sample bottle;

[0007] The portion of the upper cross section of the special-shaped bottle cap facing the mouth of the sample bottle is provided with an air outlet and an air inlet, and a pull-out channel is provided on the side where the air inlet is located; a dropper extending downward is provided on the lower end surface of the special-shaped bottle cap below the air outlet;

[0008] The pulling channel and the core pulling are adapted to each other and the core pulling and the pulling channel are sealed and connected, and the core pulling can move in the pulling channel under the action of external force;

[0009] The air outlet and the air inlet are connected to the sample bottle; the air outlet, the air inlet, the pulling channel and the dropper are all connected.

[0010] Preferably, one end of the core pulling device is connected to a driving device to facilitate reciprocating pushing and pulling.

[0011] Preferably, the special-shaped bottle cap and the core puller are made of polyethylene.

[0012] Preferably, the diameter of the drip tube gradually narrows from top to bottom.

[0013] Preferably, the sample bottle is made of transparent glass.

[0014] The beneficial effects of the utility model are:

[0015] The utility model discloses a quantitative dropper for an automatic dropper, which connects a sample bottle with the automatic dropper, and can be dripped quantitatively through core pulling and pulling control, and the dripping amount can be adjusted, thereby freeing personnel from manual work; it is not easy to spill during dripping, thereby ensuring the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an explosion diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model after assembly;

[0018] Figure 3 The implementation status of the utility model is shown in FIG. Figure 1 (Assembled into working condition);

[0019] Figure 4 The implementation status of the utility model is shown in FIG. Figure 2 (intake dripping state);

[0020] Figure 5 The implementation status of the utility model is shown in FIG. Figure 3 (Return trip, adjustment of the amount of dripping liquid);

[0021] in:

[0022] 1-sample bottle; 2-bottle cap; 3-core pull;

[0023] 21-air outlet; 22-drip tube; 23-air inlet; DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings.

[0025] Example

[0026] A quantitative drip nozzle for an automatic dripper, comprising a sample bottle 1, a special-shaped bottle cap 2, and a special-shaped bottle cap 2;

[0027] When in use, the sample bottle 1 is inverted and located above the bottle cap 2, and an external thread is provided at the mouth of the sample bottle 1;

[0028] The upper part of the special-shaped bottle cap 2 is provided with an internal thread connected to the sample bottle 1;

[0029] The portion of the upper cross section of the special-shaped bottle cap 2 facing the mouth of the sample bottle 1 is provided with an air outlet 21 and an air inlet 23, and a pulling channel is provided on the side where the air inlet 23 is located; a dropper 22 extending downward is provided on the lower end surface of the special-shaped bottle cap 2 below the air outlet 21;

[0030] The pulling channel is adapted to the core pulling 3 and the core pulling 3 is sealed and connected to the pulling channel, and the core pulling can move in the pulling channel under the action of external force;

[0031] The air outlet 21 and the air inlet 23 are connected to the sample bottle 1; the air outlet 21, the air inlet 23, the pulling channel and the dropper 22 are all connected.

[0032] Preferably, one end of the core pulling device 3 is connected to a driving device to facilitate reciprocating pushing and pulling.

[0033] The special-shaped bottle cap 2 and the core pulling 3 are made of polyethylene.

[0034] The diameter of the drip tube 22 gradually narrows from top to bottom.

[0035] The sample bottle 1 is made of transparent glass.

[0036] Directions:

[0037] like Figure 2 As shown, the working state is to first turn the sample bottle 1 upside down and connect the external thread of the bottle mouth of the sample bottle 1 with the internal thread of the bottle cap 2, and insert the core 3 into the pulling channel of the bottle cap 2.

[0038] like Figure 3 , Figure 4 As shown, the liquid medicine is loaded into the sample bottle 1 in advance, and then the core pull 3 is pushed inward, the air in the internal space of the bottle cap 2 is compressed, and since the aperture of the dropper 22 is very small, most of the air enters the sample bottle 1 from the air inlet 23, and an air layer is formed in the upper part of the sample bottle 1. As the gas pressure increases, the liquid medicine flows out from the air outlet 21, and is finally squeezed out from the small hole of the dropper 22; after the core pull 3 is pushed to the bottom, the dropper 22 and the air inlet 23 are both closed, and the dripping stops.

[0039] like Figure 5 As shown, during the return stroke, the core puller 3 is pulled back, and air enters the internal space of the bottle cap 2 from the dropper tube 22, and the core puller 3 stays at the right end position, thus completing an action cycle. The core puller 3 moves back and forth once, and the dropper tube 22 drips liquid once. The dripping capacity is determined by the moving distance of the core puller 3. When the moving distance of the core puller 3 is adjusted, the function of quantitative dripping is realized.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A quantitative drip nozzle for an automatic dripper, characterized in that: It comprises three parts: a sample bottle (1), a special-shaped bottle cap (2), and a core puller (3); When in use, the sample bottle (1) is inverted and located above the bottle cap (2), and the mouth of the sample bottle (1) is provided with an external thread; The upper part of the special-shaped bottle cap (2) is provided with an internal thread for connecting with the sample bottle (1); The portion of the upper cross section of the special-shaped bottle cap (2) facing the mouth of the sample bottle (1) is provided with an air outlet (21) and an air inlet (23), and a draw-in channel is provided on the side where the air inlet (23) is located; a dropper (22) extending downward is provided on the lower end surface of the special-shaped bottle cap (2) below the air outlet (21); The pulling channel and the core pull (3) are adapted to each other and the core pull (3) and the pulling channel are sealed and connected, and the core pull can move in the pulling channel under the action of external force; The air outlet (21) and the air inlet (23) are connected to the sample bottle (1); the air outlet (21), the air inlet (23), the pulling channel and the dropper (22) are all connected.

2. A quantitative drip nozzle for an automatic dripper according to claim 1, characterized in that: One end of the core pulling device (3) is connected to a driving device to facilitate reciprocating pushing and pulling.

3. A quantitative drip nozzle for an automatic dripper according to claim 2, characterized in that: The special-shaped bottle cap (2) and the core puller (3) are made of polyethylene.

4. A quantitative drip nozzle for an automatic dripper according to claim 3, characterized in that: The diameter of the drip tube (22) gradually narrows from top to bottom.

5. A quantitative drip nozzle for an automatic dripper according to claim 4, characterized in that: The sample bottle (1) is made of transparent glass.

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