Negative pressure filtering liquid collecting box

Abstract

The negative pressure filtering liquid collecting box comprises a collecting box body and a purifying panel, the purifying panel is arranged above the collecting box body, the purifying panel is formed by splicing a plurality of panels, each panel comprises a connecting hole and a connecting hole cover, a heating module is arranged in the purifying panel, and an adsorption column can be quickly aired after passing through the column under negative pressure; the front of the box body is provided with a power connection, a barometer and a timer. A communicating pipe is arranged on one side of the box body, a liquid outlet and a deflation valve are arranged on the other side face of the box body, the deflation valve is arranged above the liquid outlet, and the communicating pipe is higher than the liquid outlet. The device is provided with the vent valve and the liquid outlet, gas and liquid of the device can enter and exit, the purification panel is formed by splicing a plurality of panels, and the connecting holes have various specifications and sizes, so that the bottom filtering requirements of adsorption columns with different specifications can be met; the barometer and the timer are arranged, so that experimental operation can be reminded and air pressure in the box body can be detected; in conclusion, the device is simple and convenient to operate, and can improve the negative pressure filtering experiment efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid collection box technical field, concretely relates to a negative pressure filtering liquid collection box. BACKGROUND

[0002] The common negative pressure device is the combination of a vacuum pump and a liquid collection box, wherein the liquid collection box is used as an experimental filtrate collection device, the main body of which is a split type hollow cuboid structure, the upper half of which is a through cuboid structure, and the lower half is a base, and a complete hollow coverless box body is formed by splicing. The top of the box body is capped by a corresponding porous purification cover plate, and a rectangular collection tank is used to collect the filtrate in the box body, and the liquid collection box is provided with a breather valve. However, the common liquid collection box has some deficiencies:

[0003] 1. The liquid collection box uses a vacuum pump to perform vacuum extraction on the solution in the adsorption column connected to the purification cover plate, and the solution is filtered into the collection tank inside the box body. After the collection tank collects the liquid, the upper half of the box body needs to be removed to remove the collection tank, and the collected liquid needs to be processed, which is complicated to operate.

[0004] 2. The porous purification cover plate on the top of the box body has only a single specification of connecting hole. In the operation process, if there are multiple adsorption columns with different bottom specifications, the corresponding purification cover plate needs to be replaced.

[0005] 3. When the adsorption column is dried after extraction, it sometimes needs to be heated. However, the current purification panel lacks this function.

[0006] 4. Each time the nucleic acid adsorption column is connected to the panel, it needs to be marked, which is complicated.

[0007] 5. The collection box needs to be connected to the vacuum pump for vacuum filtration, but there is no reminder on the current collection box, which cannot guarantee the safety of the experimental operation. UTILITY MODEL CONTENTS

[0008] The utility model aims at the deficiencies of the current common liquid collection box, and designs a negative pressure filtering liquid collection box, which is simple and safe to operate, and can improve the efficiency of negative pressure filtration experiments. The following technical solutions are adopted:

[0009] The utility model provides a negative pressure filtrate liquid collection box, including collection box box body and purification panel, purification panel sets up above collection box box body, and purification panel is formed by splicing a plurality of panels, and each panel includes a connecting hole and corresponding connecting hole cover, and a heating module is arranged in the purification panel, and the heating module is electrically connected with the power supply, and the liquid remaining on the adsorption column membrane after the filtrate passes through the adsorption column membrane is dried through the heating module; The front of the collection box box body is provided with a power supply connection, a barometer and a timer; The collection box box body is of an integrated structure, a communication pipe is arranged on one side of the collection box box body, and a liquid outlet and a gas release valve are arranged on the other side surface, the gas release valve is arranged above the liquid outlet, and the communication pipe is arranged higher than the liquid outlet; The collection box box body is connected with the rubber pipe of the external vacuum pump through the communication pipe, a cavity is arranged in the collection box box body, the solution is collected in the cavity through the purification panel, and is discharged and recycled through the gas release valve and the liquid outlet.

[0010] Preferably, the purification panel is formed by splicing a plurality of panels, the specifications of the purification panel are determined by the specifications of the plurality of panels, and the connecting holes are provided with marking lines corresponding to the connecting holes of adsorption columns with different specifications.

[0011] Preferably, a temperature sensor is further arranged in the purification panel, and a liquid level sensor is arranged in the collection box box body, and the temperature sensor and the liquid level sensor are electrically connected with the power supply.

[0012] Preferably, the liquid collection box is covered with the connecting hole cover or the rubber plug to check the air tightness of the device.

[0013] Preferably, the collection box box body and the purification panel are made of transparent materials.

[0014] Compared with the closest prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0015] The utility model sets the air valve and the liquid outlet on the surface of the collection box shell, can realize the gas and liquid in and out of the device, sets the purification panel as a plurality of panels spliced, and the connecting holes have a plurality of specifications and sizes, can satisfy the filtering demand of the bottom of adsorption columns with different specifications, sets the heating module in the purification panel, realizes the drying of the liquid remaining on the adsorption column membrane after the filtrate passes through the adsorption column membrane, saves the process of drying the adsorption column at room temperature for a long time after the negative pressure passes through the column, saves the time, and besides, sets the barometer and the timer, can remind the experimental operation and detect the internal air pressure of the box body, and the utility model has the advantages of simple operation and high negative pressure filtration experiment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is whole structure schematic diagram of the utility model kind negative pressure filtration liquid collection box;

[0017] Fig. 2The utility model discloses a purification panel upper connecting hole and connecting hole cover structure schematic diagram shows that

[0018] Among them: 1, collecting box body, 2, purification panel, 3, liquid outlet, 4, air release valve, 5, communication pipe, 6, barometer, 7, timer, 8, power connection, 9, connecting hole, 10, connecting hole cover. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0020] Please refer to Figs. 1-2 The utility model provides a technical scheme:

[0021] A negative pressure filtering liquid collecting box, including collecting box body 1 and purification panel 2, purification panel 2 is set up above collecting box body 1, and purification panel 2 is formed by splicing multiple panels, and each panel includes a connecting hole 9 and corresponding connecting hole cover 10, the connecting hole 9 is provided with different specifications and is connected with different specifications of adsorption column, can satisfy the filtering demand of the bottom of different specifications of adsorption column. The heating module is arranged in the purification panel 2, and the heating module is electrically connected with the power connection 8, so that the liquid remaining on the adsorption column membrane after the filtrate passes through the adsorption column membrane is dried, the process of drying the adsorption column at room temperature for a long time after passing through the column under negative pressure is saved, time is saved, and experimental efficiency is improved. The front of the collecting box body 1 is provided with the power connection 8, the barometer 6 and the timer 7, which are used for detecting the internal pressure state of the box body and timing reminding respectively, the barometer 6 facilitates determining the air tightness of the device during experimental operation and leak detection, and the setting of the timer 7 can serve as a reminder for experimental operation, so that the safety of experimental operation is ensured.

[0022] The collecting box body 1 is of an integrated structure, one side of the collecting box body 1 is provided with the communication pipe 5, the other side is provided with the liquid outlet 3 and the air release valve 4, the communication pipe 5 is used for being connected with the liquid collecting box and the vacuum pump, the air release valve 4 is arranged to ensure that the whole negative pressure device formed by connecting the liquid collecting box and the vacuum pump can inhale and exhale, and the liquid outlet 3 is arranged to facilitate discharging the solution after the experiment is completed. The air release valve 4 is arranged above the liquid outlet 3, so as to prevent the liquid collected in the box body from flowing out of the air release valve 4. The external vacuum pump is connected with the liquid collecting box directly through the rubber pipe connected with the communication pipe 5, and the communication pipe 5 is arranged to be higher than the liquid outlet 3, so as to prevent the solution from flowing back.

[0023] Further, the connecting hole 9 is provided with a mark line, which facilitates experimental record.

[0024] Further, the purification panel 2 is further provided with a temperature sensor, and the liquid level sensor is arranged in the inside of the collecting box body, and when the liquid level is higher than the limited height of the box body, the liquid collecting box is reminded by the surface of the collecting box.

[0025] Further, the connecting hole 9 on the purification panel 2 is covered by the corresponding connecting hole cover 10 or rubber plug to check the air tightness of the device.

[0026] Further, the collecting box body 1 and the purification panel 2 are made of transparent material, so that the collected liquid level can be observed, and the filtered liquid exceeding the maximum volume of the box body is prevented.

[0027] The working principle of the negative pressure filtering liquid collecting box is as follows: before use, the air tightness of the entire negative pressure filtering liquid collecting box is detected, and the specific operation is as follows: the collecting box body 1 is connected with the vacuum pump through the communicating pipe 5, all the connecting hole covers 10 on the purification panel 2 are tightly covered, the air release valve 4 and the liquid outlet 3 are closed, and after the air pressure value change is normal, the air tightness detection is passed. After the air tightness detection is passed, the air release valve 4 is opened, the pressure in the cavity of the collecting box is restored to atmospheric pressure, then the connecting hole cover 10 is removed, the adsorption column is inserted into the connecting hole 9, the solution to be filtered is added into the adsorption column or the extension pipe connected with the adsorption column, the air release valve 4 is closed, the filtering operation time is set, the vacuum pump is started to perform negative pressure filtration, the solution flows into the cavity in the collecting box body 1 through the adsorption column, after the solution is completely filtered, the vacuum pump is closed, the air release valve 4 and the liquid outlet 3 are opened, and the solution in the collecting box is recycled. After the waste liquid is recycled, the adsorption column is kept on the purification panel 2, the power supply is connected, the purification panel 2 is heated to promote the drying of the adsorption column membrane, and the subsequent experimental operation is facilitated.

[0028] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the above embodiments, the specific embodiments of the present application can still be modified or replaced by the person skilled in the art, and any modification or replacement which does not deviate from the spirit and scope of the present application is within the protection scope of the claims of the application.

Claims

1. A negative pressure filtered liquid collection cartridge comprising a cartridge housing and a purification panel, characterized by: The purification panel is arranged above the collecting box body, the purification panel is formed by splicing a plurality of panels, each panel comprises a connecting hole and a corresponding connecting hole cover, a heating module is arranged in the purification panel, the heating module is electrically connected with the power connection, and the liquid remaining on the adsorption column membrane after the filtrate passes through the adsorption column membrane is dried by the heating module; The front surface of the collecting box body is provided with a power connection, a barometer and a timer; The collecting box body is of an integrated structure, a communication pipe is arranged on one side of the collecting box body, and a liquid outlet and a gas release valve are arranged on the other side surface, the gas release valve is arranged above the liquid outlet, and the communication pipe is arranged higher than the liquid outlet; The collecting box body is connected with the rubber pipe of the external vacuum pump through the communication pipe, a cavity is arranged in the collecting box body, the solution is collected in the cavity through the purification panel, and the solution is discharged and recovered through the gas release valve and the liquid outlet.

2. A negative pressure filtered liquid collection cartridge according to claim 1, wherein: The purification panel is formed by splicing a plurality of panels, the specification of the purification panel is determined by the specifications of the plurality of panels, the connecting hole is also provided with connecting holes of different specifications corresponding to adsorption columns of different specifications, and the connecting hole is provided with a marking line.

3. The negative pressure filtered liquid collection cartridge of claim 1, wherein: The purification panel is arranged above the collecting box body, the purification panel is formed by splicing a plurality of panels, each panel comprises a connecting hole and a corresponding connecting hole cover, a heating module is arranged in the purification panel, the heating module is electrically connected with the power connection, and the liquid remaining on the adsorption column membrane after the filtrate passes through the adsorption column membrane is dried by the heating module; The front surface of the collecting box body is provided with a power connection, a barometer and a timer; The collecting box body is of an integrated structure, a communication pipe is arranged on one side of the collecting box body, and a liquid outlet and a gas release valve are arranged on the other side surface, the gas release valve is arranged above the liquid outlet, and the communication pipe is arranged higher than the liquid outlet; The collecting box body is connected with the rubber pipe of the external vacuum pump through the communication pipe, a cavity is arranged in the collecting box body, the solution is collected in the cavity through the purification panel, and the solution is discharged and recovered through the gas release valve and the liquid outlet.

4. The negative pressure filtered liquid collection cartridge of claim 1, wherein: The collecting box body and the purification panel are made of transparent materials.

5. The negative pressure filtered liquid collection cartridge of claim 1, wherein: ​

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