Liquid phase liquid supplementing device

Abstract

The utility model discloses a liquid phase supplementing device in the field of test appliances. The liquid phase supplementing device comprises a liquid storage bottle; the liquid supplementing bottle is connected to the peripheral surface of the bottle body of the liquid storage bottle through a horizontal connecting pipe and is communicated with the interior of the liquid storage bottle; the electromagnetic valve is arranged on the connecting pipe and is used for controlling the connection and disconnection of the connecting pipe; the liquid level switch is arranged in the liquid supplementing bottle; the automatic liquid supplementing device has the advantages that the liquid storage bottle and the liquid supplementing bottle are communicated through the connecting pipe, the heights of the liquid levels in the two bottle bodies tend to be the same, liquid phase transfer can be completed without arranging a pump body according to the principle, connection and disconnection of the connecting pipe can be completed through the liquid level switch without a controller, automatic liquid supplementing is achieved, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of testing apparatus, concretely relates to a liquid phase liquid supplementing device. BACKGROUND

[0002] Liquid chromatography tandem mass spectrometer has the characteristics of high sensitivity, strong specificity and high analysis flux, and is widely used in pharmacokinetic research. This technology is called "golden standard". With the development of technology, liquid chromatography tandem mass spectrometer is equipped with high-throughput automatic sampler, can store 18 pieces of 96-hole plate at a time, has the function of continuously and automatically analyzing more than 1700 biological samples at a time without manual operation to replace the sample plate, can realize high-throughput automatic analysis of samples, meet the demand of large sample analysis, and reduce the cost.

[0003] In the prior art, the mobile phase or needle washing liquid used by the analysis instrument is placed in a 1L, 2L or 4L solvent bottle, but the capacity of the solvent bottle is limited. When the laboratory is continuously analyzing a large number of samples, it is necessary to continuously analyze for a long time or to analyze at a large flow rate, usually the mobile phase is not enough due to excessive consumption. This requires the experimental personnel to observe and judge whether the mobile phase needs to be added at any time during the instrument analysis, and manual addition of the mobile phase during sampling is easy to produce bubbles and pollution, which will affect the sample analysis. If the instrument is paused during sampling, and the mobile phase is manually added after the liquid phase pump stops running, not only the balance time of the instrument is increased, but also the state of the instrument after balance will affect the subsequent sample analysis, which greatly limits the demand of intelligent high-throughput analysis, and the volatile organic reagent will also cause harm to the human body when manually adding the mobile phase.

[0004] And then in a patent document with publication number CN219179323U discloses a kind of liquid chromatography mobile phase automatic liquid supplementing device, its characterized in that, including: liquid storage bottle, for containing mobile phase, the top of liquid storage bottle is connected with first cover;Receiving bottle, the top of receiving bottle is connected with second cover, receiving bottle inner wall is equipped with liquid level monitoring meter for monitoring the liquid level of receiving bottle inner cavity;Communication pipeline, communication pipeline is arranged between liquid storage bottle and receiving bottle, the inlet end of communication pipeline is sealed through first cover and extends into the bottom of liquid storage bottle and is equipped with filter head, the outlet end of communication pipeline passes through second cover and extends into the inner cavity of receiving bottle, communication pipeline can push mobile phase in liquid storage bottle into receiving bottle, the outlet of elbow pipe is connected with the inner wall of receiving bottle;Wherein, communication pipeline is equipped with electronic pump control valve, also equipped with PLC controller and electronic pump control valve connection.

[0005] It solves the above problems by electronic pump control valve, PLC controller and liquid level monitoring meter, but the control system is prone to failure, the liquid phase in the liquid storage bottle is transported by the electronic pump, and a bend is arranged at the end of the communication pipeline to reduce bubbles, and the structure is complex.

[0006] Therefore, we propose a liquid phase liquid supplementing device. SUMMARY

[0007] In view of the above shortcomings of the prior art, the utility model provides a liquid phase liquid supplementing device.

[0008] To achieve the above invention purposes, the utility model adopts the technical scheme that:

[0009] A liquid phase liquid supplementing device, comprising: a liquid storage bottle; a liquid supplementing bottle connected to the peripheral surface of the bottle body of the liquid storage bottle through a horizontal connecting pipe and communicating with the inside of the liquid storage bottle; an electromagnetic valve arranged on the connecting pipe and used for controlling the opening and closing of the connecting pipe; a liquid level switch arranged in the liquid supplementing bottle, the liquid level switch and the electromagnetic valve are electrically connected with a power supply and control the opening and closing of the electromagnetic valve.

[0010] The bottle body of the liquid supplementing bottle and the liquid storage bottle is connected through the connecting pipe, according to the principle of liquid pressure balance, the liquid surfaces of the liquid supplementing bottle and the liquid storage bottle connected through the connecting pipe will keep balance, the initial state of the liquid surface height in the liquid storage bottle is very high, the liquid surface height in the liquid supplementing bottle will also keep the same, at this time, the electromagnetic valve is in the closed state, the liquid phase detection consumes the liquid in the liquid supplementing bottle, and the liquid surface drops, the liquid level switch is arranged in the liquid supplementing bottle, when the liquid surface drops to the liquid level switch, the liquid level switch is connected, the electromagnetic valve is connected, the liquid in the liquid storage bottle automatically flows to the liquid supplementing bottle for liquid supplementing, compared with the transfer of the liquid phase in the liquid storage bottle by the electronic pump, the transfer direction is more gentle, bubbles are not easy to be generated, the structure is simple, automatic liquid supplementing can be completed without using a controller, and the structure is simpler.

[0011] Further limitation, the connecting pipe is arranged close to the bottom of the liquid storage bottle and the liquid supplementing bottle; arranging the connecting pipe close to the bottom of the liquid storage bottle and the liquid supplementing bottle can make the liquid phase in the liquid storage bottle be discharged more completely.

[0012] Further limitation, a liquid supplementing pipe (21) is arranged in the liquid supplementing bottle, the liquid supplementing pipe (21) extends from the upper end of the liquid supplementing bottle (2), the bottom of the liquid supplementing pipe is provided with a liquid supplementing head, and the peripheral surface of the liquid supplementing head is provided with a liquid passing hole; the liquid passing hole is arranged on the peripheral surface of the liquid supplementing head, which is more convenient for liquid inlet, and the liquid supplementing head can be arranged at the bottom of the liquid supplementing bottle, thereby playing a supporting role and reducing the fixing pressure of other positions of the liquid supplementing pipe.

[0013] The liquid level switch comprises a contact switch, a rotating block, a rotating rod and a floating ball, the rotating block is fixedly arranged at the top of the contact switch, one end of the rotating rod is rotationally connected to the rotating block and the other end of the rotating rod is fixedly connected to the floating ball, when the liquid surface is lower than the contact switch, the floating ball is not pressed down the contact switch by the buoyancy, at this time, the power supply and the electromagnetic valve are communicated to supplement the liquid, when the liquid surface is higher than the contact switch, the floating ball floats to cancel the pressing of the contact switch, the power supply and the electromagnetic valve are disconnected, and the electromagnetic valve is closed; the circuit is communicated by the floating ball pressing the contact switch, the structure is simple, and the manufacturing is convenient.

[0014] The liquid storage bottle and the liquid supplement bottle are both provided with a sealing plug, the sealing cap is provided with a vent hole, and the sealing plug of the liquid supplement bottle is provided with a penetrating hole for the liquid supplement pipe to pass through, and the inner diameter of the penetrating hole and the outer diameter of the liquid supplement pipe are in interference fit; the sealing plug can reduce the probability of dust entering the air, and the vent hole is arranged to maintain the atmospheric pressure in the liquid storage bottle and the liquid supplement bottle and ensure the normal flow of the liquid in the connecting pipe.

[0015] The vent hole is in the shape of "「", one opening of the vent hole is located on the bottom surface of the sealing plug, and the other opening is located on the peripheral surface of the sealing plug outside the bottle body; the vent hole in the shape can further reduce the probability of dust entering the air while maintaining the atmospheric pressure in the bottle body.

[0016] The top of the rotating block is internally provided with a stop block, and when the rotating rod and the stop block are in contact, the included angle between the rotating rod and the horizontal plane on the side of the floating ball is an acute angle; the stop block can prevent the floating ball from making the rotating rod be in a vertical state, and prevent the rotating rod from being inverted to the other side and not contacting the contact switch when the liquid surface descends.

[0017] The liquid storage bottle and the liquid supplement bottle are both provided with a sealing plug, the sealing cap is provided with a vent hole, and the sealing plug of the liquid supplement bottle is provided with a penetrating hole for the liquid supplement pipe to pass through, and the inner diameter of the penetrating hole and the outer diameter of the liquid supplement pipe are in interference fit; the sealing plug can reduce the probability of dust entering the air, and the vent hole is arranged to maintain the atmospheric pressure in the liquid storage bottle and the liquid supplement bottle and ensure the normal flow of the liquid in the connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a partial perspective view of the front view of the utility model;

[0019] Figure 2 It is Figure 1 An enlarged schematic view of part A.

[0020] The symbols of the components are as follows:

[0021] The liquid storage bottle 1, the liquid supplement bottle 2, the liquid supplement pipe 21, the liquid supplement head 22, the liquid passing hole 221, the connecting pipe 3, the electromagnetic valve 4, the liquid level switch 5, the contact switch 51, the rotating block 52, the stop block 521, the rotating rod 53, the floating ball 54, the power supply 6, the sealing plug 7 and the vent hole 71. Detailed Implementation

[0022] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0023] Example:

[0024] like Figure 1 and Figure 2 As shown, a liquid phase replenishment device includes a storage bottle 1, a replenishment bottle 2, a connecting pipe 3, a solenoid valve 4, and a level switch 5. The replenishment bottle 2 is connected to the circumference of the storage bottle 1 via the horizontal connecting pipe 3 and communicates with the interior of the storage bottle 1. The connecting pipe 3 is located near the bottom of the storage bottle 1 and the replenishment bottle 2. A replenishment tube 21 is provided inside the replenishment bottle 2, and the replenishment tube 21 extends from the upper end of the replenishment bottle. A replenishment head 22 is provided at the bottom of the replenishment tube 21. A liquid inlet 221 is provided on the circumferential surface of the liquid head 22; both the storage bottle 1 and the replenishment bottle 2 are provided with a sealing plug 7, and a vent 71 is provided on the sealing plug 7 of the replenishment bottle 2. A through hole for the replenishment tube 21 to pass through is provided on the sealing plug 7, and the inner diameter of the through hole and the outer diameter of the replenishment tube 21 are interference-fitted; the vent 71 is "「" shaped, with one opening located on the bottom surface of the sealing plug 7 and the other opening located on the circumferential surface of the sealing plug 7 outside the bottle body; electromagnetic Valve 4 is installed on connecting pipe 3 and is used to control the opening and closing of connecting pipe 3; liquid level switch 5 is installed inside replenishment bottle 2, and liquid level switch 5 is electrically connected to solenoid valve 4 and power supply 6 to control the opening and closing of solenoid valve 4; liquid level switch 5 includes contact switch 51, rotating block 52, rotating rod 53 and float 54, rotating block 52 is fixedly installed on top of contact switch 51, one end of rotating rod 53 is rotatably connected to rotating block 52 and the other end is fixedly connected to float 54, when the liquid level is low When the contact switch 51 is engaged, the float 54 is not pressed down by buoyancy. At this time, the power supply 6 and the solenoid valve 4 are connected to replenish the liquid. When the liquid level is higher than the contact switch 51, the float 54 floats up and cancels the downward pressure on the contact switch 51. The power supply 6 and the solenoid valve 4 are disconnected and the solenoid valve 4 is closed. The top of the rotating block 52 is provided with a stop block 521. When the rotating rod 53 contacts the stop block 521, the angle between the rotating rod 53 and the horizontal plane on the side of the float 54 is an acute angle.

[0025] The bottle body of the liquid supplement bottle 2 and the liquid storage bottle 1 is connected through the connecting pipe 3. According to the principle of liquid pressure balance, the liquid surface of the liquid supplement bottle 2 and the liquid storage bottle 1 connected through the connecting pipe 3 will keep balance. The liquid surface height in the liquid storage bottle 1 is very high in the initial state, and the liquid surface height in the liquid supplement bottle 2 will also keep the same. At this time, the electromagnetic valve 4 is in the closed state. The liquid phase detection consumes the liquid in the liquid supplement bottle 2, and the liquid surface drops. The liquid level switch 5 is arranged in the liquid supplement bottle 2. When the liquid surface drops to the liquid level switch 5, the liquid level switch 5 is connected, the electromagnetic valve 4 is connected, and the liquid in the liquid storage bottle 1 automatically flows to the liquid supplement bottle 2 for liquid supplement. Compared with the electronic pump for transferring the liquid phase in the liquid storage bottle 1, the transfer direction is more gentle, and bubbles are not easy to be generated. The structure is simple, and the automatic liquid supplement can be completed without using a controller. The structure is more simple. The connecting pipe 3 is arranged near the bottom of the liquid storage bottle 1 and the liquid supplement bottle 2, so that the liquid phase in the liquid storage bottle 1 can be discharged more completely. The liquid passage hole 221 is arranged on the peripheral surface of the liquid supplement head 22, which is more convenient for liquid inlet. The liquid supplement head 22 can be arranged at the bottom of the liquid supplement bottle 2, which plays a supporting role and reduces the fixing pressure of other positions of the liquid supplement pipe 21. The contact switch 51 is pressed and connected to the circuit through the floating ball 54, which is simple in structure and convenient to manufacture. The closed plug 7 is arranged to reduce the probability of dust entering the air. The air hole 71 is arranged to maintain the atmospheric pressure in the liquid storage bottle 1 and the liquid supplement bottle 2, and ensure the normal flow of the connecting pipe 3. The air hole 71 with this shape can further reduce the probability of dust entering the air while maintaining the atmospheric pressure in the bottle body. The stop block 521 is arranged to avoid the floating ball 54 from making the rotating rod 53 vertical, and to avoid the rotating rod 53 from falling to the other side and not contacting the contact switch 51 when the liquid surface drops.

Claims

1. A liquid replenishment device, characterized by, The utility model relates to a liquid supplementing device, which comprises: a liquid storage bottle (1); a liquid supplementing bottle (2) connected to the liquid storage bottle (1) through a horizontal connecting pipe (3) and in communication with the interior of the liquid storage bottle (1); a solenoid valve (4) arranged on the connecting pipe (3) for controlling the opening and closing of the connecting pipe (3); a liquid level switch (5) arranged in the liquid supplementing bottle (2), the liquid level switch (5) being electrically connected with the solenoid valve (4) and a power supply (6) for controlling the opening and closing of the solenoid valve (4).

2. The liquid replenishment device of claim 1, wherein The connecting pipe (3) is arranged close to the bottom of the liquid storage bottle (1) and the liquid supplementing bottle (2).

3. The liquid replenishment device of claim 2, wherein, The liquid supplementing bottle (2) is provided with a liquid supplementing pipe (21) extending from the upper end of the liquid supplementing bottle (2), and the bottom of the liquid supplementing pipe (21) is provided with a liquid supplementing head (22) with a liquid passing hole (221) formed in the circumferential surface of the liquid supplementing head (22).

4. The liquid replenishment device of claim 3, wherein The liquid level switch (5) comprises a contact switch (51), a rotating block (52), a rotating rod (53) and a floating ball (54), the rotating block (52) is fixedly arranged on the top of the contact switch (51), one end of the rotating rod (53) is rotatably connected to the rotating block (52), and the other end of the rotating rod (53) is fixedly connected to the floating ball (54), when the liquid level is lower than the contact switch (51), the floating ball (54) does not press down the contact switch (51) due to the buoyancy, at this time, the power supply (6) and the solenoid valve (4) are in communication for liquid supplementing, when the liquid level is higher than the contact switch (51), the floating ball (54) floats up to cancel the pressing of the contact switch (51), the power supply (6) and the solenoid valve (4) are disconnected, and the solenoid valve (4) is closed.

5. The liquid replenishment device of claim 4, wherein, The liquid storage bottle (1) and the liquid supplementing bottle (2) are each provided with a sealing plug (7) with a gas passing hole (71) formed therein, and the sealing plug (7) of the liquid supplementing bottle (2) is provided with a through hole for the liquid supplementing pipe (21) to pass through, the inner diameter of the through hole and the outer diameter of the liquid supplementing pipe (21) are in interference fit.

6. The liquid replenishment device of claim 5, wherein, The gas passing hole (71) is in the shape of "「”, one opening of the gas passing hole (71) is located on the bottom surface of the sealing plug (7), and the other opening is located on the circumferential surface of the sealing plug (7) outside the bottle body.

7. The liquid replenishment device of claim 4, wherein The top of the rotating block (52) is provided with a stop block (521), when the rotating rod (53) and the stop block (521) are in contact, the included angle between the rotating rod (53) and the horizontal plane on the side of the floating ball (54) is an acute angle.

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