Liquid food pipettor

Abstract

The utility model discloses a liquid food pipettor which comprises a pipetting frame, a square hole is formed in the pipetting frame, an electric sliding rail is fixedly connected in the square hole, the electric sliding rail is in power connection with a sliding block, the upper end face of the sliding block is fixedly connected with a pipetting storage tank, and the upper end face of the sliding block is fixedly connected with two electric push rods which are in bilateral symmetry. The electric push rod penetrates through the sliding block to be in power connection with the upper end face of the connecting plate, a telescopic rod of the electric push rod is connected with the sliding block in an up-down sliding mode, a pipetting storage cavity is formed in the pipetting storage tank, the pipetting storage tank is fixedly connected with a breathable film, the breathable film plays a role in ventilation and dust prevention, and the lower end face of the connecting plate is fixedly connected with a pipetting suction pipe. A liquid pump is fixedly connected to the upper end face of the connecting plate, an electromagnetic valve is fixedly connected into the sliding block, a conveying hose is fixedly connected between the electromagnetic valve and the liquid pump, the electromagnetic valve can communicate with the conveying hose and the pipetting storage cavity, and the liquid pump can communicate with the pipetting suction pipe and the conveying hose.

Description

Technical Field

[0001] The utility model relates to the field of food detection, in particular to a liquid food pipette. Background Art

[0002] When testing liquid food, quantitative sampling is often required. The liquid food is extracted from the raw material bottle and then pipetted into the inspection vessel in a quantitative manner. However, dripping and residue are prone to occur during pipetting, resulting in inconsistent pipetting amounts. Therefore, it is necessary to extract a liquid food amount larger than the required amount at a time, and at the same time, to prevent food dripping during pipetting. Therefore, a liquid food pipette that prevents dripping and ensures the required pipetting amount is needed to replace the existing pipette. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid food pipette to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid food pipette, comprising a pipette stand, the pipette stand is provided with a square hole, an electric slide rail is fixedly connected in the square hole, the electric slide rail is dynamically connected to a slider, the upper end surface of the slider is fixedly connected to a pipette storage tank, the upper end surface of the slider is fixedly connected to two left-right symmetrical electric push rods, and a connecting plate is provided on the lower side of the slider. The electric push rod passes through the slider and is dynamically connected to the upper end surface of the connecting plate, the telescopic rod of the electric push rod is slidably connected to the slider up and down, a pipette storage cavity is provided in the pipette storage tank, the pipette storage tank is fixedly connected to a breathable membrane, the breathable membrane plays a role of ventilation and dustproof, a pipette straw is fixedly connected to the lower end surface of the connecting plate, a liquid pump is fixedly connected to the upper end surface of the connecting plate, an electromagnetic valve is fixedly connected in the slider, a material delivery hose is fixedly connected between the electromagnetic valve and the liquid pump, the electromagnetic valve can connect the material delivery hose with the pipette storage cavity, and the liquid pump can connect the pipette straw with the material delivery hose.

[0005] Advantageously, a base is provided at the lower side of the pipetting rack, and two left-right symmetrical support plates are fixedly connected to the upper end surface of the base, and the pipetting rack is fixedly connected to the upper end surface of the support plate;

[0006] Advantageously, a shelf is fixedly connected between the support plates, and the shelf is provided with two left-right symmetrical positioning grooves;

[0007] Advantageously, a testing vessel is placed in the left positioning groove, and a raw material bottle is placed in the right positioning groove;

[0008] Advantageously, a control console is fixedly connected to the front side of the upper end face of the base, and the control console can control the electric slide rail, the electric push rod, the solenoid valve and the liquid pump.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model is provided with an electric push rod, a solenoid valve and a liquid pump. The liquid pump can draw the food stock liquid in the raw material bottle into the transfer storage cavity through the transfer pipette via the feeding hose and the solenoid valve, and seal it after the solenoid valve is closed to prevent the liquid food from dripping. At the same time, the electric slide rail can be used to drive the transfer pipette to align with the detection vessel, and the control console is used to control the liquid pump to discharge a certain amount of food stock liquid into the detection vessel, so as to realize accurate quantitative transfer and avoid the problem of dripping during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 2 for Figure 1 A top view of

[0013] Figure 3 for Figure 2 AA cross-sectional diagram of ;

[0014] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0015] Figure 5 It is a three-dimensional schematic diagram of the positioning groove of the utility model;

[0016] Figure 6 It is a three-dimensional schematic diagram of the material delivery hose of the utility model.

[0017] In the figure: 100, base; 101, control console; 102, support plate; 103, storage rack; 104, test vessel; 105, raw material bottle; 106, square hole; 107, electric slide rail; 108, slider; 109, transfer storage tank; 110, breathable membrane; 111, electric push rod; 113, transfer rack; 114, transfer storage chamber; 115, solenoid valve; 116, connecting plate; 117, transfer straw; 118, liquid pump; 119, material delivery hose; 120, positioning groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] Embodiment 1:

[0020] See also Figure 1-6 The utility model provides a technical solution: a liquid food pipette, including a pipette stand 113, the pipette stand 113 is provided with a square hole 106, an electric slide rail 107 is fixedly connected in the square hole 106, the electric slide rail 107 is dynamically connected to a slider 108, the upper end surface of the slider 108 is fixedly connected to a liquid transfer storage tank 109, the upper end surface of the slider 108 is fixedly connected to two left-right symmetrical electric push rods 111, and a connecting plate 116 is provided on the lower side of the slider 108. The electric push rod 111 passes through the slider 108 and is dynamically connected to the upper end surface of the connecting plate 116, and the telescopic rod of the electric push rod 111 is connected to the slider 108 in an up-and-down sliding manner. The transfer storage tank 109 is provided with a transfer storage cavity 114, and the transfer storage tank 109 is fixedly connected with a breathable membrane 110, and the breathable membrane 110 plays a role in ventilation and dust prevention. The lower end surface of the connecting plate 116 is fixedly connected with a transfer pipette 117, and the upper end surface of the connecting plate 116 is fixedly connected with a liquid pump 118. The slider 108 is fixedly connected with a solenoid valve 115, and a material delivery hose 119 is fixedly connected between the solenoid valve 115 and the liquid pump 118. The solenoid valve 115 can connect the material delivery hose 119 with the transfer storage cavity 114, and the liquid pump 118 can connect the transfer pipette 117 with the material delivery hose 119.

[0021] The bottom side of the pipetting rack 113 is provided with a base 100, and the upper end surface of the base 100 is fixedly connected with two left-right symmetrical support plates 102, and the pipetting rack 113 is fixedly connected to the upper end surface of the support plates 102;

[0022] A shelf 103 is fixedly connected between the support plates 102, and the shelf 103 is provided with two symmetrical positioning grooves 120;

[0023] A testing vessel 104 is placed in the left positioning groove 120 , and a raw material bottle 105 is placed in the right positioning groove 120 ;

[0024] A control console 101 is fixedly connected to the front side of the upper end of the base 100 , and the control console 101 can control the electric slide rail 107 , the electric push rod 111 , the solenoid valve 115 and the liquid pump 118 .

[0025] Working principle:

[0026] First, place the test vessel 104 in the left positioning groove 120, then place the raw material bottle 105 containing liquid food in the right positioning groove 120, and then drive the slider 108 to move to the top of the raw material bottle 105 through the electric slide rail 107, so that the pipette 117 is aligned with the bottle mouth of the raw material bottle 105;

[0027] Then, the electric push rod 111 is started through the control console 101, and the electric push rod 111 drives the connecting plate 116 to move downward, thereby driving the liquid pipette 117 to extend into the raw material bottle 105, and then the solenoid valve 115 is opened through the control console 101, and the liquid pump 118 is started to extract the liquid food from the liquid pipette 117, and flow into the liquid storage chamber 114 through the material delivery hose 119 and the solenoid valve 115. The amount extracted is more than the required detection amount, so as to prevent the residual amount from causing insufficient detection amount and inaccurate detection;

[0028] Then, the electromagnetic valve 115 is closed first, and then the liquid pump 118 is closed, and the electric push rod 111 is started to drive the liquid pipette 117 to move upward out of the raw material bottle 105, and then the electric slide rail 107 drives the liquid pipette 117 to the left side and moves it to the top of the detection vessel 104, and then the electric push rod 111 drives the liquid pipette 117 to move downward into the detection vessel 104, and then the electromagnetic valve 115 is opened first, and then the liquid pump 118 is started, and by controlling the working time of the liquid pump 118, the liquid food in the liquid storage chamber 114 is quantitatively extracted into the detection vessel 104, so as to meet the quantitative requirement of the discharged liquid food;

[0029] The feeding hose 119 is made of soft material and will not hinder the upward and downward movement of the connecting plate 116. At the same time, the breathable membrane 110 can play a ventilation role to avoid the influence of atmospheric pressure when drawing in and out food, and the breathable membrane 110 can play a dustproof role.

[0030] It is obvious to those skilled in the art that various modifications and variations may be made to the disclosed embodiments. Other embodiments will be readily apparent to those skilled in the art in view of the specification and practice of the disclosed system. It is intended that the specification and examples be considered exemplary only, with the true scope of protection being determined by the appended claims and their equivalents.

Claims

1. A liquid food pipette, comprising a pipetting stand (113) characterized by: The liquid transfer rack (113) is provided with a square hole (106), an electric slide rail (107) is fixedly connected in the square hole (106), the electric slide rail (107) is dynamically connected to a slider (108), the upper end surface of the slider (108) is fixedly connected to a liquid transfer storage tank (109), the upper end surface of the slider (108) is fixedly connected to two electric push rods (111) that are symmetrical on the left and right, and a connecting plate (116) is provided on the lower side of the slider (108). The electric push rod (111) passes through the slider (108) and is dynamically connected to the upper end surface of the connecting plate (116). The telescopic rod of the electric push rod (111) is slidably connected to the slider (108) up and down, the liquid transfer storage tank (109) is provided with a liquid transfer storage cavity (114), the liquid transfer storage tank (109) is fixedly connected with a breathable membrane (110), the lower end surface of the connecting plate (116) is fixedly connected with a liquid transfer straw (117), the upper end surface of the connecting plate (116) is fixedly connected with a liquid pump (118), the slider (108) is fixedly connected with a solenoid valve (115), and a material delivery hose (119) is fixedly connected between the solenoid valve (115) and the liquid pump (118).

2. A liquid food pipette according to claim 1, characterized in that: A base (100) is provided at the lower side of the pipetting rack (113); two left-right symmetrical support plates (102) are fixedly connected to the upper end surface of the base (100); and the pipetting rack (113) is fixedly connected to the upper end surface of the support plates (102).

3. A liquid food pipette according to claim 2, characterized in that: A storage rack (103) is fixedly connected between the support plates (102), and the storage rack (103) is provided with two left-right symmetrical positioning grooves (120).

4. A liquid food pipette according to claim 3, characterized in that: A detection vessel (104) is placed in the left positioning groove (120), and a raw material bottle (105) is placed in the right positioning groove (120).

5. A liquid food pipette according to claim 4, characterized in that: A control console (101) is fixedly connected to the front side of the upper end of the base (100).

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