CN215198573U

CN215198573U - Sampling needle belt cleaning device

Info

Publication number: CN215198573U
Application number: CN202121624392.0U
Authority: CN
Inventors: 吴庆; 代瑛; 唐小沁; 陈国文; 叶小苛; 何志均
Original assignee: Chengdu Guihe Technology Co ltd
Current assignee: Chengdu Guihe Technology Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-17
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a sampling needle cleaning device, which comprises a device body, wherein a cleaning tank and a cleaning tank are respectively arranged on the device body, the depth of the cleaning tank and the cleaning tank is larger than the length of the sampling needle when the sampling needle is put in, a needle sleeve is arranged in the cleaning tank, the needle sleeve is positioned at the groove opening of the cleaning tank and movably connected with the inner wall of the cleaning tank, a cavity is arranged inside the needle sleeve, a needle hole for the sampling needle to pass through is arranged on the needle sleeve, a liquid inlet is also arranged on the needle sleeve, the liquid inlet is used for inputting a moistening liquid to clean the sampling needle, the cleaning tank is used for containing the moistening liquid after the moistening liquid is used for moistening the sampling needle, the cleaning tank is used for cleaning the sampling needle, the size of the needle hole on the upper surface of the needle sleeve is matched with the outer diameter of the sampling needle to clamp the sampling needle, the needle diameter of the needle hole on the lower surface of the needle sleeve is larger than the sampling needle diameter, so that the moistening liquid can flow into the cleaning tank, the sampling needle can be cleaned in the cleaning tank and also can collect the cleaning liquid, the wiping groove can wipe the outer wall of the sampling needle dry.

Description

Sampling needle belt cleaning device

Technical Field

The utility model relates to a wash apparatus technical field, concretely relates to sampling needle belt cleaning device.

Background

In the dissolution sampling device, a sample to be detected needs to be sucked by a sampling needle, and finally, a detector detects and analyzes the sample sucked by the sampling needle. In the operation process, because certain samples are usually remained on the inner wall and the outer wall of the sampling needle after sampling every time, and the remained samples can affect the result of next sampling if the remained samples are not cleaned, the sampling needle must be cleaned before being used again, especially the outer wall of the sampling needle is cleaned, for example, lysozyme containing HCL is used, the sampling needle is cleaned in time after the experiment is finished, the volatility of HCL is very strong, if the solvent contains hydrochloric acid and the like, the remained strong acid can possibly cause the corrosion of stainless steel after the moisture is volatilized, in the prior art, a cleaning bottle is generally used for moistening and cleaning the outer wall of the sampling needle, and then a rag or other tools are used for wiping the outer wall of the sampling needle; but if directly use wash-bottle rinse fix the sampling needle on dissolving out the equipment, can lead to the sample to remain because abluent not comprehensive on the one hand, on the other hand rinse-solution directly spouts on the sampling needle, rinse-solution will splash everywhere and can make dirty and dissolve out the appearance mesa, like this to operating personnel on the one hand when directly cleaning the sampling needle outer wall more the part of leaning on in a bit be difficult for wiping, still probably contact the sample liquid of remaining on the sampling needle outer wall in addition, consequently need a convenient and fast and can wash the belt cleaning device who cleans the sampling needle comprehensively.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem how to wash comprehensively and clean the sampling probe and collect the washing liquid, aim at provides a sampling probe belt cleaning device, through setting up the washing tank and cleaning the groove, can wash also can collect the washing liquid to the sampling probe in the washing tank, cleans the groove and can wipe the sampling probe outer wall futilely.

The utility model discloses a following technical scheme realizes:

a sampling needle cleaning device comprises a device body, wherein a cleaning tank and a cleaning tank are respectively arranged on the device body, the depth of the cleaning tank and the depth of the cleaning tank are greater than the length of a liquid taking needle head of a sampling needle, a needle sleeve is arranged in the cleaning tank, the needle sleeve is positioned at the groove opening of the cleaning tank and is movably connected with the inner wall of the cleaning tank, a cavity is arranged in the needle sleeve, a needle hole for the sampling needle to pass through is arranged on the needle sleeve, a liquid inlet is also arranged on the needle sleeve, the liquid inlet is used for inputting a moistening liquid to clean the sampling needle, the cleaning tank is used for containing the moistening liquid after the moistening liquid is washed, the cleaning tank is used for cleaning the sampling needle, the size of the needle hole on the upper surface of the needle sleeve is matched with the size of the outer diameter of the sampling needle to clamp the sampling needle, the diameter of the needle hole on the lower surface of the needle sleeve is greater than the diameter of the sampling needle, so that the moistening liquid can flow into the cleaning tank, when the sampling needle is placed into the cleaning tank and the cleaning tank, the depth of the cleaning tank and the wiping tank is larger than the part of the sampling needle head immersed into the sampling sample, so that the part needing to be cleaned can be completely put into the cleaning tank and the wiping tank to be cleaned and wiped. When the outer wall of the sampling needle of the dissolution sampling device is cleaned, most of the outer walls of the sampling needle liquid-taking needle head are directly rinsed by using a wash bottle, then the outer wall of the sampling needle is wiped by using rag or other tools, but if the sampling needle fixed on the dissolution device is directly rinsed by using the wash bottle, on one hand, the sample can be remained because of insufficient cleaning, on the other hand, the rinse liquid is directly sprayed on the sampling needle, the rinse liquid can splash around and can contaminate the table board of the dissolution instrument, therefore, the utility model discloses a cleaning tank and a wiping tank are arranged, the rinse liquid is input into the cavity of the needle sleeve through the liquid inlet on the needle sleeve, because the hole for the sampling needle to pass through is only arranged below the needle sleeve, the diameter of the hole is larger than the sampling needle, thus, the input rinse liquid can flow downwards along the outer wall of the sampling needle through the only opening to complete the cleaning of the sampling needle, when the moist lotion in the washing tank is enough many, because needle cover and washing tank are swing joint, can also rotate needle cover, drive the sampling needle and wash at the washing tank internal rotation, further clean the outer wall of sampling needle, can also put into after having washd the sampling needle and clean the inslot and clean, wipe the moist lotion on the sampling needle outer wall futilely, during the use this belt cleaning device, can not take off the sampling needle from dissolving out the appearance, directly can accomplish in the inslot with the sampling needle and wash and clean.

Further, the needle cover includes integrated into one piece's handheld portion and liquid inlet portion, handheld portion and liquid inlet portion are provided with the pinhole that supplies the sampling needle to pass with one heart, handheld position is in washing tank notch top, liquid inlet portion is located in the washing tank, liquid inlet portion outer wall with washing tank inner wall swing joint, be equipped with in the liquid inlet portion the inlet, the inside cavity that is provided with of liquid inlet portion is divided into handheld portion and liquid inlet portion with the needle cover, sets up handheld portion and makes things convenient for rotatory sampling needle more, also avoids directly touching the sampling needle simultaneously, causes sampling needle secondary pollution.

Further, for better convenience in grabbing and rotating the handheld portion, a handle is arranged on the handheld portion.

Further, the inside cavity of liquid inlet portion is the protruding structure of cartridge type, and direction along the inside cavity axis of perpendicular to liquid inlet portion and edge liquid inlet portion extremely the direction of washing tank bottom is the moist washing liquid flow direction promptly, the protruding one side of keeping away from the washing tank outer wall of cartridge type is towards being close to liquid inlet portion's axis one side bulges gradually, and the diameter of bellying mouth is greater than the sample needle diameter, and the bellying mouth diameter is slightly greater than the sample needle diameter for moist washing liquid can be followed the sample needle outer wall and flowed down, and the protruding structure of cartridge type makes the liquid that gets into in the liquid inlet portion can be concentrated on the sample needle outer wall more directional, plays a liquid guide effect, makes the liquid of input can flow down along the outer wall of sample needle.

Further, the inside cavity of liquid inlet portion divide into the stock solution chamber and the washing chamber of part intercommunication, stock solution chamber and washing chamber all are equipped with the through-hole that supplies the sampling needle to pass, and the through-hole diameter is greater than the external diameter of sampling needle, and stock solution chamber and washing chamber pass through the through-hole intercommunication, just stock solution chamber is located washs the chamber top, it is the protruding structure of cartridge type to wash the chamber, along the direction of perpendicular to the inside cavity axis of liquid inlet portion and follow liquid inlet portion extremely the direction moist wash liquid flow direction of washing tank bottom, the protruding one side of keeping away from the washing tank outer wall of cartridge type is towards being close to liquid inlet portion's axis one side is salient gradually, and the diameter of salient export is greater than the sampling needle diameter, and the bulge mouth diameter is slightly greater than the sampling needle diameter for moist wash liquid can be followed the downward flow of sampling needle outer wall, sets up the buffer zone of stock solution chamber as moist wash liquid, then slowly imports the washing intracavity through the through-hole, the amount of the rinse solution is reduced, and the cylindrical convex structure of the cleaning cavity enables the liquid entering the liquid inlet part to be concentrated on the outer wall of the sampling needle in a more directional manner, so that a liquid guiding effect is achieved, and the input liquid can flow downwards along the outer wall of the sampling needle.

Furthermore, a groove cover and a rotating cylinder are arranged on the wiping groove, the rotating cylinder penetrates through the groove cover and is movably connected with the groove cover, the rotating cylinder is hollow and can be sleeved on the sampling needle, a mounting disc is arranged in the wiping groove and is fixedly connected with the rotating cylinder in the same circle center, a hole for the sampling needle to penetrate through is formed in the mounting disc, a water-absorbing sponge is arranged below the mounting disc, a cylindrical cavity which is in the same circle center with the mounting disc is formed in the water-absorbing sponge and is communicated with the hole in the mounting disc, the diameter of the cylindrical cavity is matched with the outer diameter of the sampling needle, and the moistening and washing liquid on the outer wall of the sampling needle is sucked to be dry through the water-absorbing sponge, so that the aim of wiping is fulfilled.

Furthermore, a gear is arranged on the groove cover, a gear spring groove is formed in the outer wall of the rotary drum, the gear is installed in a gear installation hole formed in the groove cover, the gear is meshed with the gear spring groove, the rotary drum is rotated to drive the installation disc to rotate, and the outer wall of the sampling needle is wiped.

Furthermore, for more convenient rotating operation, a rotating handle is arranged on the rotating cylinder.

Further, a liquid discharge valve is arranged on the outer wall of the device body and is adjacent to the bottom wall of the cleaning tank, the liquid discharge valve is communicated with the cleaning tank and used for emptying the cleaning tank, when liquid in the cleaning tank is filled, the liquid discharge valve can be opened to empty the cleaning tank, and the device is convenient and quick.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the embodiment of the utility model provides a sampling needle belt cleaning device sets up the washing tank, and the washing tank is used for rinsing sampling needle and splendid attire moist lotion after rinsing the sampling needle, inputs moist lotion through the inlet on the needle cover, and the moist lotion of input flows down along the pinhole of needle cover cavity lower surface along the outer wall of sampling needle and accomplishes the washing to the sampling needle to flow into the washing tank, and the needle cover that is located in the washing tank is swing joint with the washing tank, can realize that the sampling needle washs in the washing tank through rotatory needle hub, and the cleaning performance is better;

2. the embodiment of the utility model provides a pair of sampling needle belt cleaning device sets up and cleans the groove, sets up the mounting disc in cleaning the groove, installs the sponge that absorbs water on the mounting disc, the inside cylinder chamber that is equipped with the same centre of a circle of mounting disc of sponge that absorbs water, hole intercommunication on cylinder chamber and the mounting disc, the diameter in cylinder chamber and the external diameter phase-match of sampling needle, through absorbing the moist lotion of sponge on with the sampling needle outer wall dry to reach and wipe dry purpose.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic view of an overall structure of a cleaning device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cleaning tank according to an embodiment of the present invention;

fig. 3 is a schematic view of the needle sheath provided by the embodiment of the present invention along the axial section of the sampling needle;

fig. 4 is a schematic structural diagram of a wiping tank according to an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-device body, 2-cleaning tank, 3-needle sleeve, 31-liquid inlet, 32-handheld part, 33-liquid inlet, 34-liquid storage cavity, 35-cleaning cavity, 36-handle, 4-wiping groove, 41-groove cover, 42-rotary cylinder, 43-mounting disc, 44-water-absorbing sponge, 45-gear, 46-gear spring groove, 47-rotary handle, 5-sampling needle and 6-liquid discharge valve.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.

Examples

As shown in FIG. 1, the sampling needle cleaning device of the present embodiment comprises a device body 1, wherein a cleaning tank 2 and a wiping tank 4 are respectively disposed on the device body 1, the depth of the cleaning tank 2 and the wiping tank 4 is greater than the length of the sampling needle when the sampling needle is put in, a needle sheath 3 is disposed in the cleaning tank 2, the needle sheath 3 is located at the notch of the cleaning tank 2 and is movably connected with the inner wall of the cleaning tank 2, a cavity is disposed inside the needle sheath 3, a needle hole for the sampling needle 5 to pass through is disposed on the needle sheath 3, a liquid inlet 31 is further disposed on the needle sheath 3, the liquid inlet 31 is used for inputting a wetting liquid to clean the sampling needle 5, the cleaning tank 2 is used for containing the wetting liquid after the sampling needle 5 is rinsed, the wiping tank 4 is used for wiping the sampling needle 5, the size of the needle hole on the upper surface of the needle sheath 3 is matched with the outer diameter of the sampling needle 5 to clamp the sampling needle 5, the diameter of the needle on the lower surface of the needle sheath 3 is greater than the diameter of the sampling needle 5, so that the wetting liquid can flow into the cleaning tank 2, adjacent to 2 diapire of washing tank on the outer wall of device body 1 is provided with flowing back valve 6, and flowing back valve 6 intercommunication washing tank 2 for evacuation washing tank 2 when the liquid in washing tank 2 was filled with, can open flowing back valve 6 and with the evacuation of washing tank 2, convenient and fast.

As shown in fig. 2, the needle guard 3 includes integrated into one piece's handheld portion 32 and liquid inlet portion 33, handheld portion 32 and liquid inlet portion 33 are provided with the pinhole that supplies sampling needle 5 to pass with one heart, handheld portion 32 is located 2 notch tops in the washing tank, snatch and rotate handheld portion 32 for better convenience, be equipped with handle 36 on the handheld portion 32, liquid inlet portion 33 is located washing tank 2, liquid inlet portion 33 outer wall and 2 inner wall swing joint in the washing tank, be equipped with inlet 31 on the liquid inlet portion 33, the inside cavity that is provided with of liquid inlet portion 33, divide into handheld portion 32 and liquid inlet portion 33 with needle guard 3, set up handheld portion 32 and make things convenient for rotatory sampling needle 5 more, also avoid directly touching sampling needle 5 simultaneously, cause sampling needle 5 secondary pollution.

As shown in fig. 4, a slot cover 41 and a rotary cylinder 42 are arranged on the wiping slot 4, the rotary cylinder 42 penetrates through the slot cover 41 and is movably connected with the slot cover 41, the rotary cylinder 42 is hollow and can be sleeved on the sampling needle 5, a mounting disc 43 is arranged in the wiping slot 4, the mounting disc 43 is concentrically and fixedly connected with the rotary cylinder 42, a hole for the sampling needle 5 to penetrate through is formed in the mounting disc 43, a water-absorbing sponge 44 is arranged below the mounting disc 43, a cylindrical cavity concentric with the mounting disc 43 is arranged inside the water-absorbing sponge 44 and is communicated with the hole in the mounting disc 43, the diameter of the cylindrical cavity is matched with the outer diameter of the sampling needle 5, a lotion on the outer wall of the sampling needle 5 is sucked dry through the water-absorbing sponge 44, so that the purpose of wiping is achieved, and for facilitating the rotation operation, a rotary handle 47 is further arranged on the rotary cylinder 42.

In actual operation, the movable connection between the rotary cylinder 42 and the slot cover 41 is in a manner that the gear 45 is meshed: be equipped with gear 45 on the capping 41, be provided with gear spring groove 46 on the outer wall of rotary drum 42, gear 45 installs in the gear 45 mounting hole that sets up on capping 41, and gear 45 and gear spring groove 46 mesh drive the mounting disc 43 through rotating rotary drum 42 and rotate, wipe dry sampling needle 5 outer wall.

In an embodiment, the inside cavity of feed liquor portion 33 is the protruding structure of cartridge type, along the direction of the inside cavity axis of perpendicular to feed liquor portion 33 and along the direction of feed liquor portion 33 to the 2 tank bottoms of wash bowl, rinse liquor flowing direction promptly, the protruding one side of keeping away from 2 outer walls of wash bowl is protruding towards the axis one side that is close to feed liquor portion 33 gradually, the diameter of bellying is greater than sampling needle 5 diameter, the bellying diameter is a bit bigger than sampling needle 5 diameter, make rinse liquor can flow down along 5 outer walls of sampling needle, the protruding structure of cartridge type makes the liquid that gets into in feed liquor portion 33 can concentrate on 5 outer walls of sampling needle more having the direction, play a liquid guide effect, make the liquid of input can flow down along the outer wall of sampling needle 5.

In another embodiment, as shown in fig. 3, the cavity inside the liquid inlet 33 is divided into a liquid storage cavity 34 and a cleaning cavity 35 which are partially communicated, the liquid storage cavity 34 and the cleaning cavity 35 are both provided with through holes for the sampling needle 5 to pass through, the diameter of the through holes is larger than the outer diameter of the sampling needle 5, the liquid storage cavity 34 and the cleaning cavity 35 are communicated through the through holes, the liquid storage cavity 34 is positioned above the cleaning cavity 35, the cleaning cavity 35 is in a cylindrical bulge structure, the side of the cylindrical bulge far away from the outer wall of the cleaning tank 2 gradually bulges towards the side close to the central axis of the liquid inlet 33 along the direction perpendicular to the central axis of the cavity inside the liquid inlet 33 and along the flow direction of the cleaning liquid from the liquid inlet 33 to the bottom of the cleaning tank 2, the diameter of the bulge is larger than the diameter of the sampling needle 5, the diameter of the bulge is slightly larger than the diameter of the sampling needle 5, so that the cleaning liquid can flow downwards along the outer wall of the sampling needle 5, the liquid storage cavity 34 is provided as a buffer zone of the cleaning liquid, then slowly input liquid into the cleaning cavity 35 through the through hole, and the using amount of the rinsing liquid is reduced, the cylindrical convex structure of the cleaning cavity 35 enables the liquid entering the liquid inlet portion 33 to be concentrated on the outer wall of the sampling needle 5 in a more directional mode, a liquid guiding effect is achieved, and the input liquid can flow downwards along the outer wall of the sampling needle 5.

When the device is used for cleaning the outer wall of a sampling needle 5 of a dissolution sampling device, the sampling needle 5 is firstly sleeved in a needle sleeve 3, then the cleaning tank 2 is placed, a rubber tube can be inserted into a liquid inlet 31 and a moistening solution can be directly poured into the cleaning tank, the moistening solution flows to the outer wall of the sampling needle 5 along a cylindrical convex structure after reaching a cleaning part and flows downwards to the cleaning tank 2 along the outer wall of the sampling needle 5 to be collected, the primary cleaning of the outer wall of the sampling needle 5 is completed, when the moistening solution in the cleaning tank 2 is more, the handheld part 32 can be rotated to drive the sampling needle 5 to rotate in the moistening solution so as to achieve the purpose of comprehensive cleaning, then the sampling needle 5 is placed into a cleaning tank 4 from a rotary cylinder 42, the sponge in the cleaning tank 4 is utilized to suck the liquid on the outer wall of the sampling needle 5, the rotary cylinder 42 can be rotated to realize the rotation of the rotary cylinder 42 under the relative motion of a gear 45 and a gear 45 groove, clean the liquid on the 5 outer walls of sampling needle, after having used up this device, can pass through the discharge valve 6 discharges with the liquid in the washing tank 2, avoid making dirty the desktop, during the use of this belt cleaning device, can take off from dissolving out the appearance with sampling needle 5, directly can accomplish in the groove with sampling needle 5 and wash and clean.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A sampling needle cleaning device is characterized by comprising a device body (1), wherein the device body (1) is respectively provided with a cleaning tank (2) and a wiping tank (4), the depth of the cleaning tank (2) and the wiping tank (4) is larger than the length of the liquid taking needle head of the sampling needle (5), a needle sleeve (3) is arranged in the cleaning tank (2), the needle sleeve (3) is positioned at the notch of the cleaning tank (2) and is movably connected with the inner wall of the cleaning tank (2), a cavity is arranged in the needle sleeve (3), a needle hole for the sampling needle (5) to pass through is arranged on the needle sleeve (3), a liquid inlet (31) is also arranged on the needle sleeve (3), the inlet (31) is used for inputting the moistening lotion to wash the sampling needle (5), the cleaning tank (2) is used for containing the moistening lotion after the moistening lotion washes the sampling needle (5), and the wiping tank (4) is used for wiping the sampling needle (5) dry.

2. The sampling needle cleaning device according to claim 1, wherein the needle guard (3) comprises a hand-held portion (32) and a liquid inlet portion (33) which are integrally formed, the hand-held portion (32) and the liquid inlet portion (33) are concentrically provided with a needle hole for the sampling needle (5) to pass through, the hand-held portion (32) is located above a notch of the cleaning groove (2), the liquid inlet portion (33) is located in the cleaning groove (2), the outer wall of the liquid inlet portion (33) is movably connected with the inner wall of the cleaning groove (2), the liquid inlet portion (33) is provided with the liquid inlet (31), and a cavity is arranged inside the liquid inlet portion (33).

3. A lancet cleaning device according to claim 2, wherein the handle (36) is provided on the handle portion (32).

4. The sampling needle cleaning device according to claim 2, wherein the cavity inside the liquid inlet portion (33) is of a cylindrical protruding structure, the direction perpendicular to the central axis of the cavity inside the liquid inlet portion (33) is along the direction from the liquid inlet portion (33) to the bottom of the cleaning tank (2), one side of the cylindrical protruding portion, away from the outer wall of the cleaning tank (2), protrudes gradually towards one side of the central axis close to the liquid inlet portion (33), and the diameter of the protruding portion is larger than that of the sampling needle (5), so that the rinsing liquid can flow downwards along the outer wall of the sampling needle (5).

5. The sampling needle cleaning device according to claim 2, characterized in that the cavity inside the liquid inlet part (33) is divided into a liquid storage cavity (34) and a cleaning cavity (35) which are partially communicated, the liquid storage cavity (34) and the cleaning cavity (35) are respectively provided with a through hole for the sampling needle (5) to pass through, the liquid storage cavity (34) and the cleaning cavity (35) are communicated through the through hole, and the liquid storage cavity (34) is positioned above the cleaning cavity (35), the cleaning cavity (35) is of a cylindrical protruding structure, the direction of the central axis of the inner cavity of the liquid inlet part (33) is vertical to the direction of the bottom of the cleaning groove (2) from the liquid inlet part (33), one side that washing tank (2) outer wall was kept away from to the section of thick bamboo type arch is towards being close to central axis one side of liquid portion (33) is salient gradually, and the diameter of protruding export is greater than sampling needle (5) diameter for the rinse solution can flow downwards along sampling needle (5) outer wall.

6. A sampling needle cleaning device according to claim 1, characterized in that the wiping tank (4) is provided with a tank cover (41) and a rotary cylinder (42), the rotary cylinder (42) passes through the slot cover (41) and is movably connected with the slot cover (41), the rotating cylinder (42) is hollow and can be sleeved on the sampling needle (5), the wiping groove (4) is internally provided with an installation disc (43), the mounting disc (43) is concentrically and fixedly connected with the rotary cylinder (42), a hole for the sampling needle (5) to pass through is arranged on the mounting disc (43), a water-absorbing sponge (44) is arranged below the mounting disc (43), a cylindrical cavity concentric with the mounting disc (43) is arranged in the water absorption sponge (44), the cylindrical cavity is communicated with a hole in the mounting disc (43), and the diameter of the cylindrical cavity is matched with that of the sampling needle (5).

7. The sampling needle cleaning device according to claim 6, characterized in that a gear (45) is arranged on the slot cover (41), a gear spring slot (46) is arranged on the outer wall of the rotary cylinder (42), the gear (45) is installed in a gear (45) installation hole arranged on the slot cover (41), and the gear (45) is meshed with the gear spring slot (46).

8. A lancet cleaning device according to claim 7, wherein the rotary barrel (42) is provided with a rotary knob (47).

9. A sampling needle cleaning device according to claim 1, characterized in that a drain valve (6) is arranged on the outer wall of the device body (1) adjacent to the bottom wall of the cleaning tank (2), the drain valve (6) communicating with the cleaning tank (2) for draining the cleaning tank (2).