A nitrogen blower improved device

By introducing a rotating ring, connecting rod, turntable, and adjustment groove into the nitrogen blowing apparatus, the height of the fixed plate can be adjusted. The problem that the sample plate cannot adapt to sample bottles of different lengths is solved by using steel clamps and clamping mechanisms, which improves the versatility and ease of replacing steel clamps.

CN224500140UActive Publication Date: 2026-07-14SHANGHAI SEP ANALYTICAL SERVICES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SEP ANALYTICAL SERVICES CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The sample tray of the existing nitrogen blowing apparatus is fixed by welding, which results in insufficient versatility when dealing with sample bottles of different lengths.

Method used

An improved nitrogen blowing device was designed. By combining a rotating ring, a connecting rod, a turntable, and an adjustment groove, the height of the fixed plate can be adjusted, and sample bottles of different sizes can be fixed and replaced by steel clamps and a clamping mechanism.

Benefits of technology

The versatility of the nitrogen blowing apparatus has been improved, enabling it to adapt to sample bottles of different lengths and allowing for easy replacement of steel clamps to secure sample bottles of different thicknesses.

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Abstract

The utility model relates to nitrogen blowing instrument improvement technical field discloses an improved device of nitrogen blowing instrument, including organism, the middle part of organism is provided with fixed disc, the inner bottom wall of fixed disc is opened has the sliding slot, the inside middle lower portion sliding connection of fixed disc has the slide buckle, the inside middle upper portion rotationally connected with carousel of fixed disc, the top wall of carousel equidistance has a plurality of adjusting grooves, the top equidistance fixed connection of carousel has a plurality of connecting rods, a plurality of connecting rods's top fixed connection has the rotating ring, the top of fixed disc installs a plurality of clamping mechanisms, a plurality of clamping mechanisms are used for clamping the sample bottle of different size. In the utility model, the rotating ring drives the slide buckle to slide in the fixed disc through the connecting rod, the carousel and the adjusting groove, at this moment can adjust the position of fixed disc, thereby can realize the effect that the fixed disc height is freely adjusted when meeting the sample bottle of different length.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen blowing device improvement technology, and in particular to an improved nitrogen blowing device. Background Technology

[0002] A nitrogen evaporator is a commonly used instrument in laboratories for the concentration and drying of samples. It mainly utilizes the rapid flow of inert gases such as nitrogen to quickly blow away the solvent from the surface of the sample solution, thereby achieving sample concentration or drying. Its working principle is based on the fact that inert gases such as nitrogen can reduce the partial pressure of air on the surface of the solvent, making it easier for solvent molecules to evaporate from the solution surface into the gas phase, thus accelerating the evaporation rate of the solvent.

[0003] A search revealed Chinese Patent Publication No. CN220912801U, which discloses an improved nitrogen blowing device, comprising: a first housing, with two bearings rotatably mounted on the bottom of the inner wall of the first housing. This improved nitrogen blowing device, by rotating a knob, rotates a bidirectional lead screw, causing a first sliding plate and a second sliding plate to move, and consequently, a first limiting plate and a second limiting plate to move together, thus adapting to sample holders of different heights. When adjusting the distance between the nitrogen blowing needle and the sample holder, a crank is turned. The crank rotates, driving a second rotating rod, which in turn drives a first gear. The rotation of the first gear causes a meshing second gear to rotate, which in turn moves a rack. The rack's movement causes a first fixed block to rise, and the rising of the first fixed block causes the top plate to rise synchronously, thereby increasing the height of the nitrogen blowing needle. Existing nitrogen blowing devices use a welded sample tray, which cannot be adjusted for sample bottles of different lengths, resulting in insufficient versatility. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an improved nitrogen blowing device, which aims to improve the problem that the sample tray fixed by welding in the prior art cannot be adjusted accordingly when facing sample bottles of different lengths, resulting in insufficient versatility.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an improved nitrogen blowing device, comprising a body, a fixed plate disposed in the middle of the body, a sliding groove formed in the inner bottom wall of the fixed plate, a sliding buckle slidably connected to the lower inner side of the fixed plate, a turntable rotatably connected to the upper inner side of the fixed plate, a plurality of adjusting grooves equally spaced on the top wall of the turntable, a plurality of connecting rods equally spaced and fixedly connected to the top of the turntable, a rotating ring fixedly connected to the top of the plurality of connecting rods, and a plurality of clamping mechanisms installed on the top of the fixed plate, the plurality of clamping mechanisms being used to clamp sample bottles of different sizes.

[0006] The above technical solution involves rotating a rotating ring, which in turn drives multiple connecting rods fixed below it to rotate. The rotation of these connecting rods, in turn, drives a turntable to rotate. As the turntable rotates, multiple adjusting grooves on it cause corresponding sliding buckles to slide within the fixed plate. Simultaneously, a sliding groove on the bottom wall of the fixed plate guides the sliding trajectory of the buckles, causing them to slide outwards. This allows for adjustment of the fixed plate's position. After adjusting the fixed plate to the appropriate height, rotating the rotating ring in the opposite direction causes the turntable to rotate in the opposite direction via the connecting rods. Simultaneously, the adjusting grooves on the turntable, in conjunction with the sliding grooves, cause the buckles to slide inwards, thus fixing the position of the fixed plate.

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes push buttons, the bottom of which is slidably connected to the top of the fixed plate, the ends of which are fixedly connected to buckles, and the adjacent sides of which are fixedly connected to springs. The top wall of the fixed plate is provided with multiple fixing grooves at equal intervals, the inner sides of which are slidably connected to fixing buckles, and the outer sides of which are fixedly connected to steel clips.

[0009] The above technical solution allows for the fixation of sample bottles of different sizes using steel clips. Multiple steel clips are secured by corresponding fixing buckles inserted into corresponding fixing slots. When a steel clip needs to be replaced, the push button is pushed inward, which pulls the corresponding buckle inward to pull it out of the hole of the fixing buckle. At this point, the fixing buckle can be removed from the fixing slot to replace the steel clip. After the new steel clip is installed back in its original position, the push button is released, and the spring will pop the buckle out so that it is reinserted into the hole of the fixing buckle.

[0010] As a further description of the above technical solution:

[0011] A rubber sleeve is fixedly connected to the outer wall of the rotating ring, and multiple anti-slip textures are equidistantly opened on the outer wall of the rubber sleeve.

[0012] The above technical solution improves the anti-slip properties of the swivel ring by creating anti-slip textures on the outside of the rubber sleeve.

[0013] As a further description of the above technical solution:

[0014] Each of the push buttons has a rubber pad fixedly connected to its top, and the top of each rubber pad has multiple grooves at equal intervals.

[0015] The above technical solution improves the friction of the push button by creating grooves in the rubber pad.

[0016] As a further description of the above technical solution:

[0017] Two anti-slip strips are installed at equal intervals on the inner side of the plurality of steel clips, and tacks are fixedly connected to the left and right sides of the plurality of anti-slip strips.

[0018] The above technical solution prevents sample bottles from slipping by fixing them to the anti-slip strip inside the steel clamp with thumbtacks.

[0019] As a further description of the above technical solution:

[0020] The top of the machine body has multiple circular holes at equal intervals, and a protective ring is fixedly connected to the inner side of each of the multiple circular holes.

[0021] The above technical solution provides protection for the nitrogen blowing device by fixing the protective ring inside the circular hole, thereby preventing wear on the nitrogen blowing device.

[0022] As a further description of the above technical solution:

[0023] An adjustment knob is rotatably connected to the lower front part of the body, and a stop groove is provided on the outer wall of the adjustment knob.

[0024] The above technical solution involves adjusting the operating speed of the nitrogen blowing device using a control knob in conjunction with a gear slot.

[0025] As a further description of the above technical solution:

[0026] An indicator light is fixedly connected to the right front end of the machine body, and a power light is fixedly connected to the left front end of the machine body.

[0027] The above technical solution allows for the observation of the nitrogen evaporator's operating status via indicator lights and its power-on status via power indicator lights.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the rotating ring drives the sliding buckle to slide within the fixed plate through the connecting rod, turntable and adjusting groove. At this time, the position of the fixed plate can be adjusted, thereby achieving the effect of freely adjusting the height of the fixed plate when encountering sample bottles of different lengths, thus improving its versatility.

[0030] 2. In this utility model, steel clamps are used to fix sample bottles of different sizes. Multiple steel clamps are fixed by a fixing buckle and a fixing groove in conjunction with a snap buckle. When replacing the steel clamp, push the push button to pull the snap buckle inward so that it can be pulled out of the hole of the fixing buckle. This achieves the effect of fixing sample bottles of different sizes and replacing steel clamps. Attached Figure Description

[0031] Figure 1This is a perspective view of an improved nitrogen blowing device proposed in this utility model;

[0032] Figure 2 This invention proposes an improved nitrogen blowing device. Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is a partial structural exploded view of an improved nitrogen blowing device proposed in this utility model;

[0034] Figure 4 This is an exploded view of the clamping mechanism of an improved nitrogen blowing device proposed in this utility model;

[0035] Figure 5 This invention proposes an improved nitrogen blowing device. Figure 4 Enlarged view of section B in the middle.

[0036] Legend:

[0037] 1. Body; 2. Clamping mechanism; 201. Push button; 202. Snap buckle; 203. Spring; 204. Fixing groove; 205. Fixing buckle; 206. Steel clamp; 3. Fixing plate; 4. Slide groove; 5. Slide buckle; 6. Turntable; 7. Adjustment groove; 8. Connecting rod; 9. Rotary ring; 10. Rubber sleeve; 11. Anti-slip texture; 12. Rubber pad; 13. Groove; 14. Anti-slip strip; 15. Thumbtack; 16. Round hole; 17. Protective ring; 18. Adjustment button; 19. Gear slot; 20. Indicator light; 21. Power light. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 3An embodiment of this utility model provides an improved nitrogen blowing device, comprising a body 1, a fixed plate 3 in the middle of the body 1, a sliding groove 4 on the inner bottom wall of the fixed plate 3, a sliding buckle 5 slidably connected to the lower inner side of the fixed plate 3, the sliding groove 4 guiding the sliding trajectory of the sliding buckle 5, a turntable 6 rotatably connected to the upper inner side of the fixed plate 3, a plurality of adjusting grooves 7 equidistantly opened on the top wall of the turntable 6, the turntable 6 driving the sliding buckle 5 to slide through the adjusting grooves 7, a plurality of connecting rods 8 equidistantly fixedly connected to the top of the turntable 6, a rotating ring 9 equidistantly connected to the top of the plurality of connecting rods 8, the rotating ring 9 driving the turntable 6 to rotate through the connecting rods 8, a plurality of clamping mechanisms 2 installed on the top of the fixed plate 3, the plurality of clamping mechanisms 2 being used to clamp sample bottles of different sizes, a rubber sleeve 10 equidistantly connected to the outer wall of the rotating ring 9, a plurality of anti-slip textures 11 equidistantly opened on the outer wall of the rubber sleeve 10, the anti-slip textures 11 improving the anti-slip performance of the rubber sleeve 10;

[0040] Specifically, rotating the rotating ring 9 causes multiple connecting rods 8 fixed below it to rotate, which in turn causes the turntable 6 to rotate. When the turntable 6 rotates, it causes the corresponding sliding buckles 5 to slide within the fixed plate 3 through multiple adjusting grooves 7. At the same time, the sliding grooves 4 on the inner bottom wall of the fixed plate 3 guide the sliding trajectory of the multiple sliding buckles 5, causing them to slide outwards simultaneously. At this time, the position of the fixed plate 3 can be adjusted. After the fixed plate 3 is adjusted to a suitable height, rotating the rotating ring 9 in the opposite direction causes the turntable 6 to rotate in the opposite direction through the connecting rods 8. At the same time, the adjusting grooves 7 on the turntable 6, in conjunction with the sliding grooves 4, cause the multiple sliding buckles 5 to slide inwards simultaneously, thereby fixing the position of the fixed plate 3. The anti-slip texture 11 on the outside of the rubber sleeve 10 improves the anti-slip performance of the rotating ring 9.

[0041] Reference Figure 2 , Figure 4 and Figure 5 The clamping mechanism 2 includes push buttons 201. The bottoms of multiple push buttons 201 are slidably connected to the top of the fixed plate 3. The ends of multiple push buttons 201 are fixedly connected to buckles 202. Push buttons 201 pull buckles 202 to slide. Springs 203 are fixedly connected to adjacent sides of multiple buckles 202. Springs 203 are used to push buckles 202. Multiple fixing grooves 204 are equidistantly opened on the top wall of the fixed plate 3. Fixing buckles 205 are slidably connected to the inner side of multiple fixing grooves 204. Steel clips 206 are fixedly connected to the outer side of 05. The steel clips 206 are fixed to the fixed plate 3 by fixing buckles 205 and fixing grooves 204. Rubber pads 12 are fixedly connected to the top of multiple push buttons 201. Multiple grooves 13 are equally spaced on the top of multiple rubber pads 12. The grooves 13 are used to increase the friction of the rubber pads 12. Two anti-slip strips 14 are equally spaced on the inner side of multiple steel clips 206. Thumbtacks 15 are fixedly connected to the left and right sides of multiple anti-slip strips 14. The thumbtacks 15 are used to fix the anti-slip strips 14.

[0042] Specifically, the steel clips 206 can fix sample bottles of different thicknesses. Multiple steel clips 206 are fixed by inserting corresponding fixing buckles 205 into corresponding fixing slots 204 and engaging with buckles 202. When it is necessary to replace the steel clips 206, push the push button 201 inward. The push button 201 pulls the corresponding buckle 202 inward, pulling the buckle 202 out of the hole of the fixing buckle 205. At this time, the fixing buckle 205 can be pulled out of the fixing slot 204 to replace the steel clips 206. After the new steel clips 206 are installed back in place, release the push button 201. At this time, the spring 203 will pop out the buckle 202 and re-insert it into the hole of the fixing buckle 205. The groove 13 on the rubber pad 12 increases the friction of the push button 201. The anti-slip strip 14 fixed to the inside of the steel clips 206 by the thumbtack 15 can prevent the sample bottles from slipping.

[0043] Reference Figure 1 and Figure 2 The top of the machine body 1 has multiple round holes 16 equidistantly spaced, and protective rings 17 are fixedly connected to the inner side of each round hole 16. The round holes 16 are used to fix the protective rings 17. An adjustment knob 18 is rotatably connected to the lower middle part of the front side of the machine body 1. A stop groove 19 is opened on the outer wall of the adjustment knob 18. The adjustment knob 18 cooperates with the stop groove 19 to control the operation of the equipment. An indicator light 20 is fixedly connected to the right front side of the machine body 1, and a power light 21 is fixedly connected to the left front side of the machine body 1. The status of the equipment can be observed through the indicator light 20 and the power light 21.

[0044] Specifically, the protective ring 17 fixed in the round hole 16 can provide protection for the nitrogen blowing device, thereby preventing wear of the nitrogen blowing device. The operating speed of the nitrogen blowing device can be adjusted by adjusting the knob 18 in conjunction with the gear slot 19. The operating status of the nitrogen blowing device can be observed by the indicator light 20, and the power status of the nitrogen blowing device can be observed by the power light 21.

[0045] Working principle: When using the nitrogen blowing apparatus and encountering sample tubes of different lengths, first rotate the rotating ring 9. The rotation of the rotating ring 9 drives the multiple connecting rods 8 fixed below it to rotate. The rotation of the multiple connecting rods 8 drives the rotating disk 6 to rotate. When the rotating disk 6 rotates, it drives the corresponding sliding buckles 5 to slide within the fixed disk 3 through the multiple adjustment grooves 7 on it. At the same time, the sliding grooves 4 on the bottom wall of the fixed disk 3 guide the sliding trajectory of the multiple sliding buckles 5, causing them to slide outwards simultaneously. At this time, the position of the fixed disk 3 can be adjusted. After the fixed disk 3 is adjusted to a suitable height, rotate the rotating ring 9 in the opposite direction. The connecting rods 8 drive the rotating disk 6 to rotate in the opposite direction. At the same time, the adjustment grooves 7 on the rotating disk 6, in conjunction with the sliding grooves 4, drive the multiple sliding buckles 5 to slide inwards simultaneously, thereby fixing the position of the fixed disk 3. This achieves the effect of freely adjusting the height of the fixed disk 3 when encountering sample bottles of different lengths, thus improving its versatility.

[0046] The fixing plate 3 has multiple steel clips 206, which can fix sample bottles of different sizes. The multiple steel clips 206 are fixed by inserting corresponding fixing buckles 205 into corresponding fixing slots 204 and engaging with buckles 202. When it is necessary to replace the steel clips 206, push the push button 201 inward. The push button 201 pulls the corresponding buckle 202 inward, pulling the buckle 202 out of the hole of the fixing buckle 205. At this time, the fixing buckle 205 can be pulled out of the fixing slot 204 to replace the steel clip 206. After the new steel clip 206 is installed back in its original position, release the push button 201. At this time, the spring 203 will pop out the buckle 202 and re-insert it into the hole of the fixing buckle 205. This achieves the effect of fixing sample bottles of different sizes and replacing the steel clips 206.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved nitrogen blowing device, comprising a body (1), characterized in that: A fixed plate (3) is provided in the middle of the body (1). A sliding groove (4) is provided on the inner bottom wall of the fixed plate (3). A sliding buckle (5) is slidably connected to the lower inner side of the fixed plate (3). A turntable (6) is rotatably connected to the upper inner side of the fixed plate (3). Multiple adjustment grooves (7) are provided at equal intervals on the top wall of the turntable (6). Multiple connecting rods (8) are fixedly connected at equal intervals on the top of the turntable (6). A rotating ring (9) is fixedly connected to the top of the multiple connecting rods (8). Multiple clamping mechanisms (2) are installed on the top of the fixed plate (3). The multiple clamping mechanisms (2) are used to clamp sample bottles of different sizes.

2. An improved nitrogen blowing device according to claim 1, characterized in that: The clamping mechanism (2) includes push buttons (201), the bottom of which is slidably connected to the top of the fixed plate (3), the ends of which are fixedly connected to buckles (202), and the adjacent sides of which are fixedly connected to springs (203). The top wall of the fixed plate (3) is provided with multiple fixing grooves (204) at equal intervals, the inner side of which is slidably connected to fixing buckles (205), and the outer side of which is fixedly connected to steel clips (206).

3. An improved nitrogen blowing device according to claim 1, characterized in that: The outer wall of the rotating ring (9) is fixedly connected to a rubber sleeve (10), and the outer wall of the rubber sleeve (10) is provided with multiple anti-slip textures (11) at equal intervals.

4. An improved nitrogen blowing device according to claim 2, characterized in that: Each of the push buttons (201) has a rubber pad (12) fixedly connected to its top, and the top of each of the rubber pads (12) has a plurality of grooves (13) spaced apart.

5. An improved nitrogen blowing device according to claim 2, characterized in that: Two anti-slip strips (14) are installed at equal intervals on the inner side of the plurality of steel clips (206), and tacks (15) are fixedly connected to the left and right sides of the plurality of anti-slip strips (14).

6. An improved nitrogen blowing device according to claim 1, characterized in that: The top of the body (1) has multiple round holes (16) at equal intervals, and the inner side of each of the multiple round holes (16) is fixedly connected with a protective ring (17).

7. An improved nitrogen blowing device according to claim 1, characterized in that: An adjustment knob (18) is rotatably connected to the lower front side of the body (1), and a stop groove (19) is provided on the outer wall of the adjustment knob (18).

8. An improved nitrogen blowing device according to claim 1, characterized in that: An indicator light (20) is fixedly connected to the right front end of the body (1), and a power light (21) is fixedly connected to the left front end of the body (1).