Liquid sequence controller

Abstract

The invention discloses a liquid sequence controller which is suitable for most of the field of multi-channel source control circulation related to liquid. The device is of a physical structure, and the uncertainty that original multi-water-source control needs manual control or computer control is solved. The controller is formed by arranging more than two control units, and each control unit is composed of a control pipe, a floater and a limiting stopper. The floater is smaller than liquid in density or is hollow. The height difference can be formed by increasing or reducing the height of one of the two groups of control units. When liquid flows into the tank body and the water level is higher than the floater of one group of control units, the floater ascends to close the water outlet due to the buoyancy effect, so that the aim of preventing the liquid from flowing out is fulfilled. The floater of the other control unit is higher than the water level, and liquid circulation is not affected. When a plurality of liquid sources exist, each source is connected with one control unit group, and the system can be widely applied to the fields related to the liquid, such as agriculture and forestry water conservancy irrigation, chemical engineering, medical treatment and the like.

Description

Technical Field

[0001] The invention belongs to the medical field, and is specifically applied to infusion sets. It can also be widely used in agriculture, forestry, animal husbandry, water conservancy irrigation, petrochemicals, etc., to solve the problem that multiple water sources need to be output in sequence and the water (liquid) pressure needs to be stable when transporting water to the same destination. Technical Background

[0002] The present invention originates from the infusion tubes in hospitals. When the existing infusion tubes need to hold more than two bottles of liquid medicine, the bottles must be replaced manually, which requires both the patient to observe by themselves and the nurse to replace them back and forth. In order to solve the above problems, the present invention uses the physical properties of buoyancy to make a liquid sequence controller, which can manually set the order of circulation of multiple bottles of liquid medicine in advance, and can also change the priority level midway. Because it is a physical structure, it is simple, stable, safe and low-cost, and is suitable for most liquid circulation links. Summary of the invention

[0003] The core of the present invention is that the float utilizes the physical buoyancy of the liquid itself to move up and down, thereby opening and closing the infusion tube, and the rise and fall of the control tube causes different drops of each float in the horizontal plane. This drop achieves the order of liquid output from different infusion tubes, thereby achieving the purpose of control. That is: the infusion port above the horizontal plane outputs first, the one below the horizontal plane outputs later, and the infusion port at the lowest point of the horizontal plane outputs last. Finally, the output liquid is controlled according to the setting until the output is completed. In order to intuitively display the output priority, the three primary color bands are marked on the control tube. The more color bands exposed to the tank body, the higher the priority, and the fewer color bands exposed, the lower the priority. During the liquid input process, the rise and fall of the control unit can also be adjusted to adjust the priority of each output tube, so as to achieve the purpose of management in the actual application process. For multiple output sources that need to be arranged and output at the same time, each output port is connected to a group of control units. In theory, the control units can be infinitely increased for arrangement management. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 The structural principle diagram of the present invention is

[0005] Figure 2 For the lifting hole of the control unit above the tank DETAILED DESCRIPTION

[0006] With reference to the accompanying drawings, a specific implementation case is described in detail below.

[0007] The core of the present invention is to utilize the buoyancy of the float ③ in the liquid to block the input port, so the buoyancy of the float ③ is the most critical, so the material of the float and the track of the float fixed in the liquid are the key points. The float material can be a material with a density smaller than that of the liquid that can float on the surface of the liquid, such as a foam with an outer insulating layer that can be used in a disposable medical infusion tube, and a hollow aluminum ball that can be used in chemical liquids such as petroleum with a large liquid mass. In order to increase the buoyancy and ensure that the float can effectively block the input port, according to the Archimedean principle, that is, F float = G discharge, increasing the volume of the object can effectively increase the buoyancy, so in the actual application process, the float can be round in a working environment with low buoyancy requirements, and for a working environment with high requirements such as a drain outlet of a reservoir, a convex float can be used and the control tube ⑥ can be lengthened to make it deep underwater to greatly enhance the buoyancy.

[0008] Secondly, in order to ensure that the movement trajectory of the float ③ only moves up and down, the control tube ⑥ must be a hard straight tube. If a hose is used, the float trajectory will be deformed and the input port cannot be completely blocked. The limiter ④ must ensure the free passage of the liquid and cannot be completely closed to avoid the generation of air bubbles that affect the buoyancy. Generally, a mesh or triangular spring shape is used, which not only limits the left and right movement of the float but also increases the water permeability. However, the mesh or triangular spring limiter will be deformed when used in liquids with large mass and residues. Therefore, the choice of the limiter can be selected according to actual conditions, as long as its water permeability is guaranteed. The limiter can also be of other shapes so that it does not affect the flow of the liquid during the input of the liquid. As long as the highest position of the float is limited to just block the input port, the upward movement process is not hindered. For example, if the limiter is a right triangle, when the liquid is input, the float is pushed to the corner, the liquid water level rises, and the float rises to block the input port.

[0009] The present invention is composed of more than 2 groups of identical control units ⑦, and each group of control units ⑦ is divided into three parts: float ③ limiter ④ control tube ⑥. The control tube is added with buckle ① and three primary color display band ② in order to more intuitively observe the depth of control unit ⑦ into the liquid, so as to better distinguish the order of input liquid. As shown in the figure: A control unit exposes three colors of the tank body, and B control unit exposes two colors of the tank body, indicating that the priority of A control unit is higher than that of B control unit. When the liquid input of A control unit reaches a certain level, the liquid level ⑤ submerges the floats of B control unit and C control unit, and the floats of B and C rise to block the input ports of B and C. At this time, only the input port of A control unit can input liquid normally, and B and C cannot input. Until the input of A control unit is completed, the liquid level ⑤ drops to a level higher than the float of C control unit but lower than the float of B control unit, the float of B unit drops with the level, and the input port of B unit is unblocked and starts to input liquid. The liquid input of B control unit is completed, the liquid level drops again, and finally C control unit starts to input.

[0010] Figure 2 The control unit lifting hole ⑨ allows the control unit to be adjusted in height and fixed with a buckle, thereby adjusting the liquid input sequence to achieve the purpose of management.

Claims

1. A liquid sequence controller, characterized in that: a control tube is fixedly connected to a limiter ④ and a float is built into the limiter ③.

2. The control tube ⑥ according to claim 1 is characterized in that: The upper part has three primary color display bands ② and buckles ①.

Images