Sample adding needle outer wall cleaning device

Abstract

The utility model discloses a kind of sample adding needle outer wall cleaning devices, it is related to cleaning device technical field, including roof, the inside fixed setting of roof has cleaning cylinder, the inside of cleaning cylinder is sequentially provided with air-drying cavity, cleaning cavity and drain from top to bottom, the inside of air-drying cavity is provided with air-drying assembly, the inside fixed setting of cleaning cavity has annular water tank.The utility model when needing to adjust the cleaning depth of sample adding needle, start electric push rod, drive lifting plate, push-pull rod and piston ring up and down displacement, and then adjust the position of piston ring inside annular water tank, water outlet of water jet nozzle below piston ring, water jet nozzle above piston ring is cut off water flow and stop spraying, and then adjust the cleaning depth of sample adding needle, solve the problem that the current sample adding needle cleaning device cannot adjust cleaning depth according to the pollution depth of sample adding needle during use, cause the problem of not completely cleaning phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to a device for cleaning the outer wall of a sample dispensing needle. Background Technology

[0002] In urine testing, cross-contamination between different individuals is strictly prohibited as it can interfere with the results. However, the sample dispensing needle needs to quickly deliver samples from different individuals into the test tube. To prevent cross-contamination, the sample dispensing needle needs to be rapidly cleaned. Existing sample dispensing needle cleaning devices typically involve inserting the needle into a cleaning chamber and quickly cleaning it with water spray.

[0003] The existing patent publication number CN221790466U, entitled "Sampling Needle Cleaning Device," proposes that this utility model allows each sampling needle to be inserted into the corresponding limiting hole on the limiting fixture and partially accommodated in the receiving cavity of the cleaner. This enables control over the cleaning depth of the sampling needles. Under the action of the sampling needles' own weight, the consistency of the cleaning depth of multiple sampling needles can be ensured, avoiding inconsistent cleaning depths. At the same time, it can prevent multiple sampling needles from crossing and touching each other during the cleaning process, and prevent the wire ends of the sampling needles from getting tangled or knotted, thereby shortening the cleaning time and ensuring the cleaning effect.

[0004] However, the sample needle cleaning device disclosed in the above patent cannot adjust the cleaning depth according to the contamination depth of the sample needle during use, resulting in incomplete cleaning. Therefore, it is necessary to propose a sample needle outer wall cleaning device to solve the above problem. Utility Model Content

[0005] The purpose of this invention is to provide a device for cleaning the outer wall of a sampling needle, in order to solve the problem mentioned in the background art that existing sampling needle cleaning devices cannot adjust the cleaning depth according to the contamination depth of the sampling needle during use, resulting in incomplete cleaning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sample needle outer wall cleaning device, comprising a top plate, a cleaning cylinder fixedly disposed inside the top plate, a drying chamber, a cleaning chamber and a drain outlet arranged sequentially from top to bottom inside the cleaning cylinder, a drying assembly disposed inside the drying chamber, an annular water tank fixedly disposed inside the cleaning chamber, a water receiving pipe fixedly disposed at the lower end of the outer ring of the cleaning cylinder, and a plurality of evenly arranged water nozzles fixedly disposed on the inner wall of the annular water tank, the annular water tank, the water receiving pipe and the water nozzles being interconnected, and an adjustment assembly disposed between the annular water tank and the top plate; The adjustment assembly includes an electric push rod, which is fixedly mounted on the top of the top plate. A lifting plate is fixedly mounted on the telescopic end of the electric push rod, and a push-pull rod is fixedly mounted on the other end of the lifting plate. A piston ring is slidably mounted inside the annular water tank, and the lower end of the push-pull rod extends movably into the interior of the annular water tank and is fixedly connected to the piston ring.

[0007] Preferably, sealing rings are fixedly provided on both the inner and outer walls of the piston ring, and the sealing rings are in contact with the inner wall of the annular water groove.

[0008] Preferably, the outer ring of the push-pull rod is fixedly provided with a scale.

[0009] Preferably, a support plate is fixedly provided at the bottom of the top plate, a base plate is fixedly provided at the lower end of the support plate, and a waste liquid tank is placed on the upper surface of the base plate.

[0010] Preferably, the air-drying assembly includes an annular air groove, which is fixedly disposed inside the air-drying chamber. A plurality of air nozzles are fixedly disposed on the inner wall of the annular air groove in a uniformly arranged ring. An air inlet pipe is fixedly disposed at the upper end of the outer ring of the cleaning cylinder. A heating wire is disposed inside the air inlet pipe. The annular air groove, the air nozzles and the air inlet pipe are interconnected.

[0011] Preferably, a support platform is fixedly provided between the drying chamber and the cleaning chamber, and a through hole is provided in the middle of the support platform.

[0012] Preferably, the waste liquid tank is located directly below the drain outlet.

[0013] The technical effects and advantages of this utility model are as follows: 1. When it is necessary to adjust the cleaning depth of the sampling needle, this utility model activates the electric push rod, which drives the lifting plate, push-pull rod and piston ring to move up and down, thereby adjusting the position of the piston ring inside the annular water tank. Water is sprayed from the nozzle below the piston ring, and the water flow is cut off from the nozzle above the piston ring, thus adjusting the cleaning depth of the sampling needle. This solves the problem that existing sampling needle cleaning devices cannot adjust the cleaning depth according to the contamination depth of the sampling needle during use, resulting in incomplete cleaning. 2. After the sampling needle is cleaned, when taking it out, start the external air pump and heating wire. The hot air is distributed through the annular air groove and then sprayed evenly from the air nozzle to dry the sampling needle, so as to avoid residual cleaning solution adhering to the outer wall of the sampling needle and ensure the cleaning effect of the sampling needle. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a sample dispensing needle outer wall cleaning device according to the present invention; Figure 2This is a cross-sectional structural diagram of a sample dispensing needle outer wall cleaning device according to the present invention; Figure 3 This is a schematic diagram of the electric push rod and piston ring structure of this utility model; Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of a local structure; Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of a local structure.

[0015] In the diagram: 1. Base plate; 2. Support plate; 3. Top plate; 4. Cleaning cylinder; 5. Drying chamber; 6. Washing chamber; 7. Annular water tank; 8. Water inlet pipe; 9. Spray nozzle; 10. Electric push rod; 11. Lifting plate; 12. Push-pull rod; 13. Piston ring; 14. Sealing ring; 15. Waste liquid tank; 16. Annular air tank; 17. Air nozzle; 18. Air inlet pipe; 19. Heating wire; 20. Support platform. Detailed Implementation

[0016] 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.

[0017] This utility model provides, for example Figures 1-5 The sample needle outer wall cleaning device shown includes a top plate 3, a cleaning cylinder 4 fixedly installed inside the top plate 3, and a drying chamber 5, a cleaning chamber 6 and a drain outlet arranged sequentially from top to bottom inside the cleaning cylinder 4. A drying component is installed inside the drying chamber 5, and an annular water tank 7 is fixedly installed inside the cleaning chamber 6. A water inlet pipe 8 is fixedly installed at the lower end of the outer ring of the cleaning cylinder 4. Several evenly arranged water nozzles 9 are fixedly installed on the inner wall of the annular water tank 7. The annular water tank 7, the water inlet pipe 8 and the water nozzles 9 are interconnected. An adjustment component is provided between the annular water tank 7 and the top plate 3.

[0018] The adjustment assembly includes an electric push rod 10, which is fixedly mounted on the top of the top plate 3. A lifting plate 11 is fixedly mounted on the telescopic end of the electric push rod 10, and a push-pull rod 12 is fixedly mounted on the other end of the lifting plate 11. A piston ring 13 is slidably mounted inside the annular water tank 7. The lower end of the push-pull rod 12 extends into the interior of the annular water tank 7 and is fixedly connected to the piston ring 13.

[0019] Specifically, a support platform 20 is fixedly installed between the drying chamber 5 and the cleaning chamber 6. The support platform 20 has a through hole in the middle. The sampling needle is inserted into the cleaning chamber 6, and the head of the sampling needle is restricted inside the drying chamber 5 by the support platform 20, thus completing the placement of the sampling needle. The external infusion pump is started to deliver cleaning water to the inside of the annular water tank 7 through the water inlet pipe 8, and spray it evenly through multiple water nozzles 9 to clean the sampling needle. When it is necessary to adjust the cleaning depth of the sampling needle, the electric push rod 10 is started, which drives the lifting plate 11, the push-pull rod 12 and the piston ring 13 to move up and down, thereby adjusting the position of the piston ring 13 inside the annular water tank 7. The water nozzle 9 located below the piston ring 13 sprays water, and the water nozzle 9 located above the piston ring 13 is cut off and stops spraying water, thereby adjusting the cleaning depth of the sampling needle. This solves the problem that existing sampling needle cleaning devices cannot adjust the cleaning depth according to the contamination depth of the sampling needle during use, resulting in incomplete cleaning.

[0020] Furthermore, sealing rings 14 are fixedly provided on both the inner and outer walls of the piston ring 13. The sealing rings 14 fit against the inner wall of the annular water groove 7. The sealing performance between the piston ring 13 and the annular water groove 7 is improved by setting two sealing rings 14.

[0021] Furthermore, a scale is fixedly provided on the outer ring of the push-pull rod 12. The scale makes it easy to observe the position of the piston ring 13, and thus makes it easy to adjust the cleaning depth of the sample dispensing needle.

[0022] Furthermore, a support plate 2 is fixedly installed at the bottom of the top plate 3, and a bottom plate 1 is fixedly installed at the lower end of the support plate 2. A waste liquid tank 15 is placed on the upper surface of the bottom plate 1. The waste liquid tank 15 is located directly below the drain outlet and the waste liquid is collected through the waste liquid tank 15.

[0023] Furthermore, the drying assembly includes an annular air groove 16, which is fixedly installed inside the drying chamber 5. Several air nozzles 17 are fixedly installed on the inner wall of the annular air groove 16 in a uniformly arranged annular pattern. An air inlet pipe 18 is fixedly installed at the upper end of the outer ring of the cleaning cylinder 4. A heating wire 19 is installed inside the air inlet pipe 18. The annular air groove 16, the air nozzles 17 and the air inlet pipe 18 are interconnected. After the sample needle is cleaned, during the removal process, the external air pump and the heating wire 19 are activated. Hot air is diverted through the annular air groove 16 and then evenly sprayed out from the air nozzles 17 to dry the sample needle, preventing residual cleaning liquid from adhering to the outer wall of the sample needle and ensuring the cleaning effect of the sample needle.

[0024] Working principle: A support platform 20 is fixedly installed between the drying chamber 5 and the cleaning chamber 6. The support platform 20 has a through hole in its center. The sampling needle is inserted into the cleaning chamber 6, and its head is confined within the drying chamber 5 by the support platform 20, thus completing the placement of the sampling needle. An external infusion pump is activated, delivering cleaning water through the water inlet pipe 8 to the annular water tank 7. The water is then evenly sprayed out through multiple nozzles 9 to clean the sampling needle. Waste liquid is collected in the waste liquid tank 15. When it is necessary to adjust the cleaning depth of the sampling needle, the electric push rod 10 is activated, driving the lifting... The lowering plate 11, push-pull rod 12, and piston ring 13 move up and down, thereby adjusting the position of piston ring 13 inside the annular water tank 7. Water is sprayed from the nozzle 9 located below piston ring 13, and the water flow is cut off from the nozzle 9 located above piston ring 13, thus adjusting the cleaning depth of the sampling needle. After the sampling needle is cleaned, during the removal process, the external air pump and heating wire 19 are activated. Hot air is diverted through the annular air tank 16 and then evenly sprayed out from the air nozzle 17 to dry the sampling needle, preventing residual cleaning liquid from adhering to the outer wall of the sampling needle and ensuring the cleaning effect of the sampling needle.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for cleaning the outer wall of a sample dispensing needle, comprising a top plate (3), characterized in that: A cleaning cylinder (4) is fixedly installed inside the top plate (3). The cleaning cylinder (4) is arranged from top to bottom with a drying chamber (5), a cleaning chamber (6) and a drain outlet. A drying component is installed inside the drying chamber (5). An annular water tank (7) is fixedly installed inside the cleaning chamber (6). A water inlet pipe (8) is fixedly installed at the lower end of the outer ring of the cleaning cylinder (4). Several evenly arranged water nozzles (9) are fixedly installed on the inner wall of the annular water tank (7). The annular water tank (7), the water inlet pipe (8) and the water nozzles (9) are interconnected. An adjustment component is installed between the annular water tank (7) and the top plate (3). The adjustment assembly includes an electric push rod (10), which is fixedly installed on the top of the top plate (3). A lifting plate (11) is fixedly installed at the telescopic end of the electric push rod (10), and a push-pull rod (12) is fixedly installed at the other end of the lifting plate (11). A piston ring (13) is slidably installed inside the annular water tank (7). The lower end of the push-pull rod (12) extends into the interior of the annular water tank (7) and is fixedly connected to the piston ring (13).

2. The sampling needle outer wall cleaning device according to claim 1, characterized in that: The piston ring (13) is fixedly provided with sealing rings (14) on both its inner and outer walls, and the sealing rings (14) are in contact with the inner wall of the annular water tank (7).

3. The sampling needle outer wall cleaning device according to claim 1, characterized in that: The outer ring of the push-pull rod (12) is fixedly equipped with a scale.

4. The sampling needle outer wall cleaning device according to claim 1, characterized in that: A support plate (2) is fixedly installed at the bottom of the top plate (3), and a bottom plate (1) is fixedly installed at the lower end of the support plate (2). A waste liquid tank (15) is placed on the upper surface of the bottom plate (1).

5. The sampling needle outer wall cleaning device according to claim 1, characterized in that: The air-drying assembly includes an annular air groove (16), which is fixedly installed inside the air-drying chamber (5). The inner wall of the annular air groove (16) is fixedly provided with a number of air nozzles (17) arranged in a uniform ring. The upper end of the outer ring of the cleaning cylinder (4) is fixedly provided with an air inlet pipe (18). The air inlet pipe (18) is provided with a heating wire (19). The annular air groove (16), the air nozzles (17) and the air inlet pipe (18) are interconnected.

6. The sampling needle outer wall cleaning device according to claim 5, characterized in that: A support platform (20) is fixedly provided between the drying chamber (5) and the cleaning chamber (6), and a through hole is provided in the middle of the support platform (20).

7. The sampling needle outer wall cleaning device according to claim 4, characterized in that: The waste liquid tank (15) is located directly below the drain outlet.

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