Portable detachable nitrogen blowing device

Abstract

The utility model provides a portable detachable nitrogen blowing device, and belongs to the technical field of liquid sample concentration, the device comprises a pressure reducing valve, the periphery of the pressure reducing valve is provided with a nitrogen source joint, a fixed arm and a pressure gauge, the lower end of the pressure reducing valve is provided with a communication seat, a fixed disc is arranged below the communication seat at intervals, nitrogen blowing modules are arranged at the bottom of the communication seat in an array, and the nitrogen blowing modules are inserted into the fixed disc; the upper end of the nitrogen blowing module is provided with a first nitrogen blowing pipe communicating with the connecting base, and the lower end of the nitrogen blowing module is provided with a second nitrogen blowing pipe penetrating through the fixing disc. According to the scheme provided by the invention, each nitrogen blowing module is detachable, and the gas flow rate can be accurately controlled by adjusting the gas switch valve.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid sample concentration technical field especially relates to a portable detachable nitrogen blowing device. BACKGROUND

[0002] The existing nitrogen blowing device adopts 24-hole or 96-hole integrated table type, and the lower base is relatively cumbersome, which is used in the sample pretreatment stage and mainly designed for a large number of samples. When performing nitrogen blowing operation, the device is connected with the gas source, the sample is placed in the lower end hole of the nitrogen blowing pipe, and the nitrogen blowing can be implemented by opening the gas source. However, this equipment cannot effectively control the air flow, and when a small amount of sample is blown by nitrogen, the air flow is not concentrated, the gas flow rate is not uniform, the nitrogen blowing time of each hole is uncontrollable, the sample pretreatment time is increased, and nitrogen is wasted. INVENTION CONTENTS

[0003] To solve the above technical problems, the utility model provides a portable detachable nitrogen blowing device, which adopts a detachable nitrogen blowing module and can realize precise control of the gas flow rate by adjusting the gas switch valve.

[0004] In order to realize the purpose of the utility model, the following scheme is adopted:

[0005] A portable detachable nitrogen blowing device includes a pressure reducing valve, a nitrogen source connector, a fixed arm, and a pressure gauge arranged on the outer periphery of the pressure reducing valve. A communication seat is arranged at the lower end of the pressure reducing valve. A fixed disc is arranged at intervals below the communication seat. A nitrogen blowing module is arranged in an array at the bottom of the communication seat. The nitrogen blowing module is inserted into the fixed disc. A first nitrogen blowing pipe is arranged at the upper end of the nitrogen blowing module and connected with the communication seat. A second nitrogen blowing pipe is arranged at the lower end of the nitrogen blowing module and penetrates the fixed disc.

[0006] Further, an accommodation cavity is arranged in an array in the fixed disc. The inner wall shape of the accommodation cavity matches the outer shape of the nitrogen blowing module. A through hole is arranged at the bottom of each accommodation cavity for penetrating the second nitrogen blowing pipe.

[0007] Further, a connecting pipe is arranged at the lower end of the nitrogen blowing module. An external thread is arranged at one end of the connecting pipe penetrating the through hole. A connecting gas pipe quick connector is arranged at the upper end of the second nitrogen blowing pipe. A connecting nut is threadedly connected with the external thread.

[0008] Further, a gas switch valve is arranged at the upper end of the nitrogen blowing module. The upper end of the gas switch valve is connected with the lower end of the first nitrogen blowing pipe.

[0009] Further, the nitrogen blowing module is arranged in two rows, and each row is provided with eight nitrogen blowing modules.

[0010] The utility model has the advantages of:

[0011] By setting up multiple nitrogen blowing modules, problems such as ineffective control of airflow size, uneven airflow concentration, and non-uniform airflow speed during the pretreatment of small numbers of samples have been solved. Furthermore, the gas flow rate can be controlled and the airflow stabilized through a pressure reducing valve, thereby controlling the nitrogen blowing time and reducing nitrogen waste. Attached Figure Description

[0012] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0013] Figure 1 A three-dimensional structural schematic diagram of this application is shown.

[0014] Figure 2 A three-dimensional structural schematic diagram of this application from a bottom-view perspective is shown.

[0015] Figure 3 This application shows Figure 2 A magnified view of part A.

[0016] Figure 4 A schematic diagram of the fixed disk structure of this application is shown.

[0017] Figure 5 A schematic diagram of the nitrogen blowing module structure of this application is shown.

[0018] The markings in the diagram are: pressure reducing valve-10, nitrogen source connector-11, fixed arm-12, pressure gauge-13, connecting seat-20, fixed plate-30, receiving cavity-31, through hole-32, nitrogen blowing module-40, first nitrogen blowing pipe-41, second nitrogen blowing pipe-42, gas switch valve-43, connecting pipe-44, and locking nut-45. Detailed Implementation

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figures 1-5 As shown, this embodiment provides a portable detachable nitrogen blowing device, including a pressure reducing valve 10, a connecting seat 20, a fixing plate 30, and a nitrogen blowing module 40.

[0021] Specifically, such as Figures 1-2 As shown, the pressure reducing valve 10 is used to precisely control the gas flow rate and stabilize the airflow. The pressure reducing valve 10 is provided with a nitrogen source connector 11, a fixing arm 12, and a pressure gauge 13 in sequence on its outer periphery. The nitrogen source connector 11 is a quick connector that can be connected to a gas source through a hose. The fixing arm 12 is used to connect and fix the pressure reducing valve 10. The pressure gauge 13 is used to display the pressure value inside the pressure reducing valve 10.

[0022] The connecting seat 20 is located at the lower end of the pressure reducing valve 10 and is connected to the pressure reducing valve 10. Two rows of first nitrogen blowing pipes 41 are arranged in an array at the lower end of the connecting seat 20. The upper end of each nitrogen blowing module 40 is connected to the lower end of a first nitrogen blowing pipe 41. The nitrogen blowing modules 40 are arranged in an array on the fixed plate 30.

[0023] like Figure 4 As shown, the top surface of the fixed disk 30 has a recessed array of receiving cavities 31, and each receiving cavity 31 has a through hole 32 at the bottom to reduce the weight of the device and make it easier to operate during sample pretreatment. The inner wall shape of the receiving hole 31 is adapted to the outer wall shape of the nitrogen blowing module 40, and the nitrogen blowing module 40 is installed in the receiving hole 31 in sequence.

[0024] In a preferred embodiment, the nitrogen blowing module 40 can be rectangular, cylindrical, or one or more shapes, and adjacent nitrogen blowing modules 40 can be magnetically connected. If magnetic connection is used, the top surface of the fixing disk 30 should be concave to provide a large receiving cavity 31, and through holes 32 should be arrayed within the receiving cavity 31.

[0025] like Figure 5 As shown, the upper end of the nitrogen blowing module 40 is provided with a gas switch valve 43, and the lower end of the nitrogen blowing pipe 40 is provided with a connecting pipe 44. The lower end of the connecting pipe 44 is provided with an external thread. After the connecting pipe 44 passes through the through hole 32, it is connected to a second nitrogen blowing pipe 42 made of stainless steel thin tube. The connection between the second nitrogen blowing pipe 42 and the connecting pipe 44 is provided with a quick-connect fitting 45. The upper end of the quick-connect fitting 45 is threaded to the lower end of the outer wall of the connecting pipe 44. The gas switch valve 43 is used to control the airflow of the first nitrogen blowing pipe 41 into the nitrogen blowing module 40, and at the same time, it serves to connect or close the connection between the first nitrogen blowing pipe 41 and the nitrogen blowing module 40. The second nitrogen blowing pipe 42 and the connecting pipe 44 are connected by the quick-connect fitting 45, thereby making the nitrogen blowing module 40 detachable for easy handling.

[0026] Specifically, such as Figures 1-2 As shown, the nitrogen blowing module 40 has two rows, with eight modules in each row, which can be used for nitrogen blowing of a single row of 96-well plates to increase the applicability of the device.

[0027] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A portable, detachable nitrogen blowing device, comprising a pressure reducing valve (10), a nitrogen source connector (11), a fixing arm (12), and a pressure gauge (13) on its outer periphery, characterized in that: The lower end of the pressure reducing valve (10) is provided with a connecting seat (20), and a fixed plate (30) is provided at intervals below the connecting seat (20). A nitrogen blowing module (40) is arranged in an array at the bottom of the connecting seat (20). The nitrogen blowing module (40) is inserted into the fixed plate (30). The upper end of the nitrogen blowing module (40) is provided with a first nitrogen blowing pipe (41) that connects to the connecting seat (20), and the lower end of the nitrogen blowing module (40) is provided with a second nitrogen blowing pipe (42) that passes through the fixed plate (30).

2. The portable detachable nitrogen blowing device according to claim 1, characterized in that: The fixed disk (30) is provided with array of receiving cavities (31). The shape of the inner wall of the receiving cavity (31) matches the shape of the nitrogen blowing module (40). Each receiving cavity (31) has a through hole (32) at the bottom for inserting the second nitrogen blowing pipe (42).

3. The portable detachable nitrogen blowing device according to claim 2, characterized in that: The lower end of the nitrogen blowing module (40) is provided with a connecting pipe (44), and one end of the connecting pipe (44) passing through the through hole (32) is provided with an external thread. The upper end of the second nitrogen blowing pipe (42) is provided with a connecting gas pipe quick connector (45), and the connecting nut is connected to the external thread.

4. The portable detachable nitrogen blowing device according to claim 1, characterized in that: The upper end of the nitrogen blowing module (40) is provided with a gas switch valve (43), and the upper end of the gas switch valve (43) is connected to the lower end of the first nitrogen blowing pipe (41).

5. The portable detachable nitrogen blowing device according to claim 1, characterized in that: The nitrogen blowing module (40) has two rows, with eight modules in each row.

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