Nitrogen blowing instrument needle frame lifting device

Abstract

The utility model provides a nitrogen blowing instrument needle frame lifting device which comprises a nitrogen blowing instrument, the nitrogen blowing instrument comprises a guide column and a plurality of nitrogen blowing pipes, a sliding sleeve and a needle frame are arranged on the guide column, the sliding sleeve corresponds to the guide column and the needle frame, a fixed block is arranged at the top of the guide column, a plurality of telescopic rods are arranged between the fixed block and the sliding sleeve, and the telescopic rods are arranged on the guide column. And a plurality of mounting balls are rotationally matched on the needle frame and correspond to the nitrogen blowing pipes. According to the utility model, the telescopic rod is arranged between the fixed block and the sliding sleeve, the height of the sliding sleeve is controlled and adjusted by blowing the telescopic rod, so that the height of the needle frame is adjusted, and the length of the telescopic rod can be manually adjusted, so that the device can be automatically and manually adjusted, and the flexibility of the device is improved; the mounting ball is rotationally arranged on the needle frame, and the angle of the nitrogen blowing pipe can be adjusted, so that the application range of the device is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen blowing instruments, in particular to a nitrogen blowing instrument needle stand lifting device. Background Art

[0002] A nitrogen blow dryer, also known as a nitrogen concentrator, nitrogen purge, nitrogen concentrator, or sample concentrator, is typically used to concentrate a heated sample by blowing nitrogen gas onto its surface. This method is time-saving, easy to operate, and simple to control, resulting in rapid results. It is widely used in industries such as pesticide residue analysis, commodity inspection, food, environmental, pharmaceutical, and biological products, as well as for sample preparation in liquid, gas, and mass spectrometry analysis. Existing nitrogen blow dryers typically consist of a water bath and a cylindrical support column secured within the water bath. A test tube rack is attached to the end of the support column near the water bath, and a needle holder for the nitrogen blow needle is positioned above the test tube rack. A hollow cylindrical sleeve is fixed to the center of the needle holder. The needle holder is mounted on the support column via the sleeve and moves up and down along the axis of the support column. Most manual operations are cumbersome and prone to errors in height adjustment.

[0003] To this end, the utility model provides a nitrogen blowing instrument needle stand lifting device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a nitrogen blowdown instrument needle holder lifting device to solve the problems raised in the above background technology. The utility model can achieve both automatic and manual adjustment to improve the flexibility of the device; it can also adjust the angle of the nitrogen blowdown tube, thereby expanding the scope of application of the device.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a nitrogen blowing instrument needle holder lifting device, including a nitrogen blowing instrument, the nitrogen blowing instrument including a guide column and a plurality of nitrogen blowing tubes, a sliding sleeve and a needle holder are installed on the guide column, the sliding sleeve corresponds to the guide column and the needle holder, a fixed block is installed on the top of the guide column, a plurality of telescopic rods are installed between the fixed block and the sliding sleeve, a plurality of mounting balls are rotatably matched on the needle holder, and the mounting balls correspond to the nitrogen blowing tubes.

[0006] Furthermore, the sliding sleeve is slidably connected to the guide post, and the needle holder is fixedly connected to the sliding sleeve.

[0007] Furthermore, the telescopic rod is fixedly connected to the fixed block, and one end of the telescopic rod is fixedly connected to the sliding sleeve.

[0008] Furthermore, the telescopic rod includes a first rod body and a second rod body, a sliding groove is provided in the first rod body, and a piston is fixed to one end of the second rod body, and the piston corresponds to the sliding groove.

[0009] Furthermore, an air pipe is fixed to one end of the first rod body, and the air pipe is connected to the slide groove.

[0010] Furthermore, a mounting groove is provided on the needle holder, and the mounting groove is rotatably connected to the mounting ball.

[0011] Furthermore, a through groove is provided in the installation ball, the through groove is slidably connected to the nitrogen blowing pipe, and a positioning bolt is threadedly matched on one side of the installation ball, and the positioning bolt corresponds to the nitrogen blowing pipe.

[0012] Furthermore, the side thread of the sliding sleeve is matched with a fixing bolt, and the fixing bolt corresponds to the guide column.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a nitrogen blowing instrument needle stand lifting device, comprising a fixed block, a sliding sleeve, a telescopic rod, a needle stand, a mounting ball, and a nitrogen blowing tube.

[0014] A telescopic rod is installed between the fixed block and the sliding sleeve. The height of the sliding sleeve is controlled and adjusted by blowing air on the telescopic rod, thereby adjusting the height of the needle holder. The length of the telescopic rod can also be adjusted manually, so that the device can achieve both automatic and manual adjustment, thereby improving the flexibility of the device. By rotating the mounting ball on the needle holder, the angle of the nitrogen blowing tube can be adjusted, thereby expanding the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of a nitrogen blowdown instrument needle stand lifting device of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of a nitrogen blowdown instrument needle stand lifting device of the present utility model;

[0017] Figure 3 This is a schematic diagram of the assembly three-dimensional structure of a guide column and a sliding sleeve in a nitrogen blowdown instrument needle stand lifting device of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram at A in the middle;

[0019] Figure 5 for Figure 3 Schematic diagram at point B in the middle;

[0020] In the figure: 1. Nitrogen blowing instrument; 2. Needle holder; 3. Guide column; 4. Sliding sleeve; 5. Fixing bolt; 6. Through slot; 7. Mounting ball; 8. Nitrogen blowing tube; 9. Telescopic rod; 10. Mounting slot; 11. Fixing block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a nitrogen blowing instrument needle holder lifting device, including a nitrogen blowing instrument 1, the nitrogen blowing instrument 1 includes a guide column 3 and a plurality of nitrogen blowing tubes 8, a sliding sleeve 4 and a needle holder 2 are installed on the guide column 3, the sliding sleeve 4 corresponds to the guide column 3 and the needle holder 2, a fixed block 11 is installed on the top of the guide column 3, a plurality of telescopic rods 9 are installed between the fixed block 11 and the sliding sleeve 4, a plurality of mounting balls 7 are rotatably matched on the needle holder 2, and the mounting balls 7 correspond to the nitrogen blowing tubes 8.

[0023] In this embodiment, the sliding sleeve 4 is slidably connected to the guide column 3, the needle holder 2 is fixedly connected to the sliding sleeve 4, the telescopic rod 9 is fixedly connected to the fixed block 11, one end of the telescopic rod 9 is fixedly connected to the sliding sleeve 4, the telescopic rod 9 includes a first rod body and a second rod body, a slide groove is opened in the first rod body, a piston is fixed to one end of the second rod body, the piston corresponds to the slide groove, an air pipe is fixed to one end of the first rod body, the air pipe is connected to the slide groove, the side thread of the sliding sleeve 4 is matched with a fixing bolt 5, and the fixing bolt 5 corresponds to the guide column 3.

[0024] Specifically, when the height of the needle holder 2 needs to be automatically adjusted, the first rod body is inflated through the air pipe, so that the air pressure inside the slide groove in the first rod body increases, thereby pushing the piston to move, which can drive the second rod body to be pushed out, so that the second rod body drives the sliding sleeve 4 to move, which can drive the needle holder 2 to move, thereby realizing automatic adjustment of the height of the needle holder 2.

[0025] When the height of the needle holder 2 needs to be manually adjusted, the length of the telescopic rod 9 can be manually adjusted, so that the height of the sliding sleeve 4 can be adjusted through the telescopic rod 9, so that the sliding sleeve 4 drives the needle holder 2 to move. When it is adjusted to a suitable position, the fixing bolt 5 is rotated so that the fixing bolt 5 squeezes the guide column 3 to fix the sliding sleeve 4, thereby fixing the needle holder 2.

[0026] A mounting groove 10 is provided on the needle holder 2, which is rotatably connected to the mounting ball 7. A through groove 6 is provided in the mounting ball 7, which is slidably connected to the nitrogen blowing pipe 8. A positioning bolt is threaded on one side of the mounting ball 7, and the positioning bolt corresponds to the nitrogen blowing pipe 8.

[0027] Specifically, the height of the nitrogen blowing pipe 8 can be adjusted by sliding the nitrogen blowing pipe 8. The nitrogen blowing pipe 8 slides in the through groove 6. When it slides to a required height, the positioning bolt is rotated to squeeze and fix the nitrogen blowing pipe 8.

[0028] A damping pad is provided on the circumference of the mounting ball 7, and the mounting ball 7 can be fixed in the mounting groove 10 by the damping of the damping pad. The angle of the nitrogen blowing tube 8 can be adjusted by adjusting the angle of the mounting ball 7, so that experiments can be carried out at multiple angles, expanding the scope of application of the device.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nitrogen blowing instrument needle stand lifting device, comprising a nitrogen blowing instrument (1), characterized in that: The nitrogen blowing instrument (1) comprises a guide column (3) and a plurality of nitrogen blowing tubes (8); a sliding sleeve (4) and a needle holder (2) are mounted on the guide column (3); the sliding sleeve (4) corresponds to the guide column (3) and the needle holder (2); a fixed block (11) is mounted on the top of the guide column (3); a plurality of telescopic rods (9) are mounted between the fixed block (11) and the sliding sleeve (4); a plurality of mounting balls (7) are rotatably engaged on the needle holder (2); the mounting balls (7) correspond to the nitrogen blowing tubes (8).

2. A nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: The sliding sleeve (4) is slidably connected to the guide column (3), and the needle holder (2) is fixedly connected to the sliding sleeve (4).

3. The nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: The telescopic rod (9) is fixedly connected to the fixed block (11), and one end of the telescopic rod (9) is fixedly connected to the sliding sleeve (4).

4. The nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: The telescopic rod (9) comprises a first rod body and a second rod body, a sliding groove is provided in the first rod body, and a piston is fixed at one end of the second rod body, and the piston corresponds to the sliding groove.

5. The nitrogen blowdown instrument needle holder lifting device according to claim 4, characterized in that: An air pipe is fixed to one end of the first rod body, and the air pipe is connected to the sliding groove.

6. The nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: The needle holder (2) is provided with a mounting groove (10), and the mounting groove (10) is rotatably connected to the mounting ball (7).

7. The nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: A through groove (6) is provided in the installation ball (7), and the through groove (6) is slidably connected to the nitrogen blowing pipe (8). A positioning bolt is threadedly matched on one side of the installation ball (7), and the positioning bolt corresponds to the nitrogen blowing pipe (8).

8. The nitrogen blowdown instrument needle holder lifting device according to claim 1, characterized in that: The side surface of the sliding sleeve (4) is threadedly matched with a fixing bolt (5), and the fixing bolt (5) corresponds to the guide column (3).

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