Liquid digestion platform convenient for needle cleaning

Abstract

The utility model discloses a liquid digestion platform convenient for cleaning a needle head, which comprises digestion equipment, the digestion equipment comprises a base and a back plate, and the front surface of the back plate is provided with a pipetting needle; the needle cleaning device comprises a base, a needle cleaning assembly is arranged on one side of the base and comprises a cleaning bin, an insertion opening is formed in the top face of the cleaning bin, splash-proof plates are symmetrically arranged above the insertion opening, a guide annular plate is arranged at the bottom of the insertion opening, and the guide annular plate is fixedly connected with the inner top face of the cleaning bin; wherein the inner bottom face of the cleaning bin is fixedly connected with a bottom sleeve, a connecting pipe is installed in the bottom sleeve, the top face of the bottom sleeve is rotationally connected with a water passing plate, and the two sides of the top face of the water passing plate are fixedly connected with outer flushing pipes; the pipetting needle can be quickly inserted and cannot shake, meanwhile, water splashing during flushing is avoided, the outer flushing pipe is used for conducting surrounding flushing on the outer portion of the pipetting needle, stock solution residues are avoided, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of processing platform technology, specifically a liquid digestion platform that facilitates needle cleaning. Background Technology

[0002] In the development of analytical chemistry, the experimental steps are complex and cumbersome. The slow development of sample pretreatment technology and instruments has restricted the development of analytical chemistry. The reagents used in analytical chemistry are relatively expensive and require high accuracy. The existing sample processing platforms cannot meet the requirements of high precision. In addition, the inside of the pipette can be cleaned but the outside cannot, which leads to incomplete cleaning of the pipette and cross-contamination between various liquids.

[0003] Publication No. CN209934762U discloses a fully automated liquid sample processing platform, which relates to the field of processing platform technology. A pipette device is fixedly installed on the Z-axis of the X-axis, Y-axis, and Z-axis three-dimensional processing platform. A placement frame and a large high-definition color touchscreen are fixedly installed on the outer shell. A test tube rack is set inside the placement frame, and a heating module and an oscillation module are set below the test tube rack. Two high-precision syringe pumps are fixedly installed on the back plate of the outer shell. The two high-precision syringe pumps are respectively connected to a high-range syringe and a low-range syringe. A reversing valve one and a reversing valve two are connected to the upper ends of the high-range syringe and the low-range syringe. The reversing valve one is equipped with a quantitative loop connection port and several solvent ports. This invention can achieve precise liquid extraction and dripping, facilitate needle cleaning, and is easy to operate. It is easy to control, has a simple structure, and can save costs and time, reducing the waste of valuable liquids. However, this patent still has the following problems in actual use:

[0004] The needles in the above-mentioned device have a low diameter, making it difficult to align them when inserting them into the cleaning cavity. Furthermore, if the insertion is incorrect, the needles are easily damaged. In addition, the device lacks a structure for rinsing the outside of the needles, and simple soaking cannot quickly clean the outside of the needles, resulting in low cleaning efficiency.

[0005] A liquid digestion platform that facilitates needle cleaning is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a liquid digestion platform that facilitates needle cleaning, in order to solve the problems of the needle diameter being too low in the aforementioned devices mentioned in the background art, making it difficult to align the needle when it needs to be inserted into the cleaning cavity, and easily damaging the needle when misaligned. Furthermore, the aforementioned lack of a structure for rinsing the outside of the needle means that simple soaking cannot achieve rapid cleaning of the outside of the needle, resulting in low cleaning efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a liquid digestion platform that facilitates needle cleaning, comprising a digestion device, wherein the digestion device includes a base and a back plate, and a pipette is mounted on the front of the back plate;

[0008] A needle cleaning assembly is provided on one side of the base. The needle cleaning assembly includes a cleaning chamber fixed to the surface of the base. An insertion port is provided on the top surface of the cleaning chamber. Splash-proof plates are symmetrically provided above the insertion port. A guide ring plate is provided at the bottom of the insertion port. The guide ring plate is fixedly connected to the inner top surface of the cleaning chamber. A limit ring is fixedly connected to the bottom of the guide ring plate.

[0009] The bottom surface of the cleaning chamber is fixedly connected to a bottom sleeve, the top surface of the bottom sleeve is rotatably connected to a support pad, a connecting pipe is installed inside the bottom sleeve, a water-passing plate is rotatably connected to the top surface of the bottom sleeve, and external flushing pipes are fixedly connected to both sides of the top surface of the water-passing plate.

[0010] The cleaning chamber has a support rod rotatably connected to one side of its inner bottom surface, a drive wheel fixedly connected to the top of the support rod, and a driven gear fixedly connected to the top of the support rod.

[0011] Preferably, a drive motor is fixedly connected to the outside of one side of the cleaning chamber, the output end of the drive motor extends into the cleaning chamber and is fixedly connected to a drive gear, the drive gear meshes with the driven gear, and the water passage plate, the external flushing pipe and the connecting pipe are all connected.

[0012] Preferably, a drive wheel is fixedly connected to the outside of the water-passing plate, a drive belt is sleeved between the drive wheel and the drive wheel, and the splash guard is in contact with the surface of the cleaning chamber.

[0013] Preferably, one end of the connecting pipe is rotatably connected to the bottom of the water-passing plate, and the other end of the connecting pipe passes through the back of the cleaning chamber and is equipped with a switching valve.

[0014] Preferably, the top of the cleaning chamber is provided with symmetrical moving grooves, and rubber folding rods are symmetrically slidably connected in the moving grooves. The rubber folding rods are fixedly connected to the splash guard, and the surface of the splash guard is provided with gripping grooves.

[0015] Preferably, the switching valve includes a valve sleeve that is fixedly connected to one end of the connecting pipe. External connecting pipes are symmetrically fixed on the outer side of the valve sleeve. One external connecting pipe is connected to an external air pump, and the other external connecting pipe is connected to an external water pump. A transfer block is rotatably connected to the inner side of the valve sleeve, and a through groove is opened inside the transfer block.

[0016] Preferably, a locking rubber block is fixedly connected to the top edge of the transfer block, and a positioning recess is symmetrically fixed to the outer side of the top surface of the valve sleeve, the positioning recess engaging with the locking rubber block.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this liquid digestion platform, which facilitates needle cleaning, allows the pipette to be quickly inserted without shaking, while avoiding water splashing during rinsing. The water pumped in by the external water pump is sprayed out through the angled nozzle on the external rinsing tube to circulate and rinse the outside of the pipette, avoiding the residue of the original liquid and increasing the cleaning efficiency. The specific details are as follows:

[0018] 1. First, insert the pipette through the insertion port. Guided by the guide ring plate, the pipette will pass through the limiting ring and then come into contact with the support pad as it descends. Then, hold the pipette and push the two splash guards to move relative to each other and keep them close to the pipette. At this time, the friction between the two rubber folds and the moving groove will prevent the splash guards from separating. This allows the pipette to be inserted quickly and without shaking, while also preventing water from splashing during rinsing.

[0019] 2. The drive motor drives the drive gear to rotate, which in turn rotates the support rod. Through the drive wheel, transmission belt and water flow plate, the water pumped in by the external water pump is sprayed out through the angled nozzle on the external flushing pipe to rinse the outside of the pipette, avoiding the residue of the original solution and increasing the cleaning efficiency.

[0020] 3. The transfer block controls the connection between the channel and the required external pipe, allowing high-speed airflow to be ejected through the angled nozzle, thereby washing away the residual cleaning fluid on the pipette needle, reducing the amount of cleaning fluid residue on the pipette needle, and the transfer block can prevent the external air pump and external water pump from interfering with each other. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the cleaning chamber;

[0023] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0024] Figure 4 This is a top view schematic diagram of the installation structure of the switching valve and the cleaning chamber;

[0025] Figure 5 This is a top view of the switching valve.

[0026] In the diagram: 1. Digestion equipment; 101. Base; 102. Back plate; 103. Pipette; 2. Needle cleaning assembly; 201. Cleaning chamber; 202. Splash guard; 203. Insertion port; 204. Guide ring plate; 205. Limiting ring; 206. Bottom sleeve; 207. Support pad; 208. Water passage plate; 209. External flushing pipe; 210. Connecting pipe; 211. Drive wheel; 212. Support rod; 213. Drive wheel; 214. Driven gear; 215. Drive motor; 216. Drive gear; 217. Transmission belt; 218. Moving groove; 219. Rubber folding rod; 3. Switching valve; 301. Valve sleeve; 302. External connecting pipe; 303. Transfer block; 304. Through groove; 305. Locking rubber block; 306. Positioning recess. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0028] Please see Figure 1-5 The present invention provides a technical solution: a liquid digestion platform that facilitates needle cleaning, including a digestion device 1, the digestion device 1 including a base 101 and a back plate 102, and a pipette 103 installed on the front of the back plate 102.

[0029] A needle cleaning assembly 2 is provided on one side of the base 101. The needle cleaning assembly 2 includes a cleaning chamber 201 fixed to the surface of the base 101. An insertion port 203 is provided on the top surface of the cleaning chamber 201. A splash guard 202 is symmetrically provided above the insertion port 203. A guide ring plate 204 is provided at the bottom of the insertion port 203. The guide ring plate 204 is fixedly connected to the inner top surface of the cleaning chamber 201. A limit ring 205 is fixedly connected to the bottom of the guide ring plate 204. The diameter of the insertion port 203 is much larger than the diameter of the pipette 103. An outlet is provided at the bottom of one side of the cleaning chamber 201.

[0030] The bottom surface of the cleaning chamber 201 is fixedly connected to a bottom sleeve 206, the top surface of the bottom sleeve 206 is rotatably connected to a support pad 207, a connecting pipe 210 is installed inside the bottom sleeve 206, a water-passing plate 208 is rotatably connected to the top surface of the bottom sleeve 206, and external flushing pipes 209 are fixedly connected to both sides of the top surface of the water-passing plate 208. The support pad 207 is made of rubber to prevent damage to the pipette 103, and an angled nozzle is fixedly installed on the inner side of the external flushing pipe 209.

[0031] Among them, a support rod 212 is rotatably connected to one side of the inner bottom surface of the cleaning chamber 201, a drive wheel 213 is fixedly connected to the top of the support rod 212, and a driven gear 214 is fixedly connected to the top of the support rod 212.

[0032] A drive motor 215 is fixedly connected to the outside of one side of the cleaning chamber 201. The output end of the drive motor 215 extends into the cleaning chamber 201 and is fixedly connected to a drive gear 216. The drive gear 216 meshes with the driven gear 214. The water passage plate 208, the external flushing pipe 209 and the connecting pipe 210 are all connected. The water passage plate 208 has a cavity inside.

[0033] A drive wheel 211 is fixedly connected to the outside of the water flow plate 208. A drive belt 217 is sleeved between the drive wheel 211 and the drive wheel 213. The splash guard 202 is in contact with the surface of the cleaning chamber 201. The splash guard 202 can hold the hand part of the pipette 103.

[0034] One end of the connecting pipe 210 is rotatably connected to the bottom of the water-passing plate 208, and the other end of the connecting pipe 210 passes through the back of the cleaning chamber 201 and is equipped with a switching valve 3.

[0035] The top of the cleaning chamber 201 is symmetrically provided with a moving groove 218. Rubber folding rods 219 are symmetrically slidably connected in the moving groove 218. The rubber folding rods 219 are fixedly connected to the splash guard 202. The surface of the splash guard 202 is provided with a gripping groove. The two sides of the two rubber folding rods 219 are fixedly connected to the two splash guards 202 respectively. The gripping groove provides a force point for the movement of the splash guard 202.

[0036] The switching valve 3 includes a valve sleeve 301 that is fixedly connected to one end of the connecting pipe 210. External pipes 302 are symmetrically fixed on the outside of the valve sleeve 301. One external pipe 302 is connected to an external air pump, and the other external pipe 302 is connected to an external water pump. A transfer block 303 is rotatably connected to the inside of the valve sleeve 301. A through groove 304 is opened inside the transfer block 303. The through groove 304 is a bent groove with a bend angle of 120 degrees. The two external pipes 302 and the connecting pipe 210 are evenly distributed.

[0037] A locking rubber block 305 is fixedly connected to the top edge of the transfer block 303, and a positioning recess 306 is symmetrically fixed to the outer side of the top surface of the valve sleeve 301. The positioning recess 306 is engaged with the locking rubber block 305. The valve sleeve 301 is disc-shaped. A sealing strip is installed at the gap between the top surface of the transfer block 303 and the valve sleeve 301, and the positioning recesses 306 are distributed at 120 degrees.

[0038] Working principle: Before using this liquid digestion platform that facilitates needle cleaning, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, first, the pipette 103 is inserted through the insertion port 203. Guided by the guide ring plate 204, the pipette 103 passes through the limiting ring 205 and then comes into contact with the support pad 207 during descent. Then, the pipette 103 is held and the two splash guards 202 are pushed to move relative to each other and press against the pipette 103. At this time, the friction between the two rubber folding rods 219 and the moving groove 218 will prevent the splash guards 202 from separating. Finally, the pipette 103 can be quickly inserted and shaken, while preventing water from splashing out of the cleaning chamber 201 during rinsing.

[0039] Then, the drive motor 215 is started, which causes the drive gear 216 to drive the driven gear 214 to rotate, thereby causing the support rod 212 to rotate. Through the drive wheel 213, the transmission belt 217 and the water passage plate 208, the water pumped in by the external water pump is sprayed out through the angled nozzle on the external flushing pipe 209 to rinse the outside of the pipette 103. At the same time, the rotation of the external flushing pipe 209 can make the outside of the pipette 103 more thoroughly rinsed, avoiding the residue of the original solution and increasing the cleaning efficiency.

[0040] After the water pump cleaning is completed, the rotating transfer block 303 causes the locking rubber block 305 to disengage from one positioning recess 306, and after rotating 180 degrees, it engages with another positioning recess 306. At this time, the through groove 304 rotates 180 degrees, so that it no longer connects the connecting pipe 210 to the external pipe 302 connected to the external water pump, but connects the connecting pipe 210 to the external pipe 302 connected to the external air pump, so that the high-speed airflow is sprayed out through the angled nozzle, thereby washing off the cleaning fluid remaining on the pipette 103 and reducing the residue of cleaning fluid on the pipette 103.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A liquid digestion platform that facilitates needle cleaning, comprising a digestion device (1), wherein the digestion device (1) comprises a base (101) and a back plate (102), wherein a pipette (103) is mounted on the front side of the back plate (102); Its features are, Also includes: A needle cleaning assembly (2) is provided on one side of the base (101). The needle cleaning assembly (2) includes a cleaning chamber (201) fixed to the surface of the base (101). An insertion port (203) is provided on the top surface of the cleaning chamber (201). A splash guard (202) is symmetrically provided above the insertion port (203). A guide ring plate (204) is provided at the bottom of the insertion port (203). The guide ring plate (204) is fixedly connected to the inner top surface of the cleaning chamber (201). A limit ring (205) is fixedly connected to the bottom of the guide ring plate (204). The bottom surface of the cleaning chamber (201) is fixedly connected to a bottom sleeve (206), the top surface of the bottom sleeve (206) is rotatably connected to a support pad (207), a connecting pipe (210) is installed inside the bottom sleeve (206), a water-passing plate (208) is rotatably connected to the top surface of the bottom sleeve (206), and external flushing pipes (209) are fixedly connected to both sides of the top surface of the water-passing plate (208). Among them, a support rod (212) is rotatably connected to one side of the inner bottom surface of the cleaning chamber (201), a drive wheel (213) is fixedly connected to the top of the support rod (212), and a driven gear (214) is fixedly connected to the top of the support rod (212).

2. The liquid digestion platform for easy needle cleaning according to claim 1, characterized in that: A drive motor (215) is fixedly connected to the outside of one side of the cleaning chamber (201). The output end of the drive motor (215) extends into the cleaning chamber (201) and is fixedly connected to a drive gear (216). The drive gear (216) meshes with the driven gear (214). The water-passing plate (208), the external flushing pipe (209), and the connecting pipe (210) are all connected.

3. The liquid digestion platform for easy needle cleaning according to claim 1, characterized in that: The water-passing plate (208) is fixedly connected to a transmission wheel (211), and a transmission belt (217) is sleeved between the transmission wheel (211) and the drive wheel (213). The splash guard (202) is in contact with the surface of the cleaning chamber (201).

4. The liquid digestion platform for easy needle cleaning according to claim 1, characterized in that: One end of the connecting pipe (210) is rotatably connected to the bottom of the water-passing plate (208), and the other end of the connecting pipe (210) passes through the back of the cleaning chamber (201) and is equipped with a switching valve (3).

5. A liquid digestion platform for easy needle cleaning according to claim 1, characterized in that: The top of the cleaning chamber (201) is symmetrically provided with a moving groove (218), and a rubber folding rod (219) is symmetrically slidably connected in the moving groove (218). The rubber folding rod (219) is fixedly connected to the splash guard (202), and the surface of the splash guard (202) is provided with a gripping groove.

6. A liquid digestion platform for easy needle cleaning according to claim 4, characterized in that: The switching valve (3) includes a valve sleeve (301) that is fixedly connected to one end of the connecting pipe (210). External pipes (302) are symmetrically fixed on the outside of the valve sleeve (301). One external pipe (302) is connected to an external air pump, and the other external pipe (302) is connected to an external water pump. A transfer block (303) is rotatably connected to the inside of the valve sleeve (301). A through groove (304) is opened inside the transfer block (303).

7. A liquid digestion platform for easy needle cleaning according to claim 6, characterized in that: The top edge of the transfer block (303) is fixedly connected to a locking rubber block (305), and the top surface of the valve sleeve (301) is fixed with a pair of positioning recesses (306), which are engaged with the locking rubber block (305).

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