CN206779084U - Cleaning mechanism and testing equipment - Google Patents

Abstract

The utility model belongs to the technical field of the cleaning equipment technique and specifically relates to a wiper mechanism and check out test set is related to. The cleaning mechanism comprises a cleaning part body and a needle tube which moves up and down relative to the cleaning part body, and the needle tube penetrates through the cleaning part body; the gap between the outer wall of the needle tube and the cleaning part body is set to be 0.1 mm-0.5 mm; the cleaning component comprises a cleaning component body and is characterized in that a liquid inlet channel for cleaning liquid to enter and a liquid outlet channel for cleaning liquid to flow out are arranged inside the cleaning component body, a cleaning container is arranged between the liquid inlet channel and the liquid outlet channel, and the cleaning container is communicated with the liquid inlet channel and the liquid outlet channel respectively. The detection device comprises the cleaning mechanism, and the cleaning mechanism is fixedly arranged on the detection device. The utility model provides an easily form cross contamination's problem among the prior art.

Description

Cleaning mechanism and testing equipment

technical field

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning mechanism and detection equipment.

Background technique

The medical reagent aspirating needle is widely used in the pharmaceutical industry. After the medical reagent aspirating needle has sucked the reagent downward, it needs to pass through the cleaning part body during the upward running process. The cleaning liquid inside the cleaning part body enters the cleaning pool through the liquid inlet hole. , after cleaning the outer wall of the liquid aspiration needle, it flows out from the liquid outlet hole. In the whole process, in order to ensure that the cleaning liquid does not flow out of the cleaning part body from the gap except the liquid outlet, sealing rings made of silica gel or fluorine rubber are designed and installed on the top and bottom of the cleaning tank to seal the cleaning liquid.

In the cleaning part body in the prior art, scratches are easily formed on the outer surface of the liquid suction needle during long-term friction with the sealing ring, thereby forming hanging liquid, so waste liquid is likely to remain around the sealing ring and in the sealing gap, forming cross-contamination. Moreover, it is very difficult to process the body of the cleaning part where the sealing ring is installed. Because the structural size of the sealing ring is very small, the processing and inspection of the annular groove for installing the sealing ring is very troublesome, so the installation and replacement of the sealing ring are very difficult; When moving, it needs to contact and rub against the sealing ring, which will cause the sealing ring to wear and tear, and the seal will fail. It needs to be replaced regularly, especially when the tip of the lower end of the liquid suction needle enters the cleaning pool to complete cleaning, and when it moves downward again, the liquid suction needle and the bottom There is a process of "disengagement and re-entry" of the sealing ring, which is easy to cause damage to the sealing ring below. Therefore urgently need to develop a kind of cleaning mechanism that is used for cleaning liquid suction needle.

The information disclosed in the background technology section is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to those skilled in the art.

Utility model content

The first purpose of the present utility model is to provide a cleaning mechanism, which solves the problem of easy cross-contamination in the prior art.

The cleaning mechanism provided by the utility model includes: a cleaning component body and a needle tube that moves up and down relative to the cleaning component body, and the needle tube runs through the cleaning component body;

The gap between the outer wall of the needle tube and the body of the cleaning part is set to 0.1 mm to 0.5 mm;

The inside of the cleaning component body is provided with a liquid inlet channel for cleaning liquid to enter and a liquid outlet channel for cleaning liquid to flow out, a cleaning container is arranged between the liquid inlet channel and the liquid outlet channel, and the cleaning container communicate with the liquid inlet channel and the liquid outlet channel respectively.

In any of the above technical solutions, further, a first through hole for the passage of the needle tube is provided inside the cleaning component body, and a second through hole for the passage of the needle tube is provided inside the cleaning container;

The axis of the first through hole coincides with the axis of the second through hole.

In any of the above technical solutions, further, the surface of the needle tube, the surface of the first through hole and the surface of the second through hole are all smooth surfaces.

In any of the above technical solutions, further, the height of the bottom end of the liquid inlet channel is higher than the height of the top end of the liquid outlet channel.

In any of the above technical solutions, further, the cleaning mechanism further includes a driving mechanism for controlling the movement of the needle tube, and the driving mechanism is connected with the needle tube.

In any of the above technical solutions, further, the cleaning mechanism further includes a pump body for pumping liquid, and the pump body is connected to the liquid outlet channel.

In any of the above technical solutions, further, the cleaning mechanism further includes a liquid storage tank for storing cleaning liquid, and the liquid storage tank is connected to the liquid inlet channel.

In any of the above technical solutions, further, the suction pressure of the pump body is 0.5kg/cm ² -4kg/cm ² .

In any of the above technical solutions, further, the moving speed of the needle tube is 40mm/s-55mm/s.

The second purpose of the utility model is to provide a detection device, which solves the problem of easy cross-contamination in the prior art.

The detection equipment provided by the utility model includes: the above-mentioned cleaning mechanism, and the cleaning mechanism is fixedly arranged on the detection equipment.

Compared with the prior art, the cleaning mechanism and detection equipment provided by the utility model have the following advantages:

The cleaning mechanism provided by the utility model includes a cleaning part body and a needle tube that moves up and down relative to the cleaning part body, and the needle tube runs through the cleaning part body; the gap between the outer wall of the needle tube and the cleaning part body is set at 0.1 mm to 0.5 mm; the cleaning part The inside of the body is provided with a liquid inlet channel for the cleaning liquid to enter and a liquid outlet channel for the cleaning liquid to flow out. A cleaning container is arranged between the liquid inlet channel and the liquid outlet channel, and the cleaning container is connected to the liquid inlet channel and the liquid outlet channel respectively. . During the cleaning process, the cleaning liquid enters the cleaning container through the liquid inlet channel to clean the needle tube. At the same time, the cleaning liquid can also flow out through the liquid outlet channel, so that the cleaning liquid will not remain in the cleaning container; The gap between the cleaning parts is set to 0.1mm~0.5mm, not only can the liquid form water drops on the outer wall of the needle tube, but also use the surface tension of the liquid to make the liquid form a liquid sealing film in the gap to prevent liquid leakage; therefore The cleaning mechanism has the advantage of simple structure, and prevents the cleaning liquid from forming hanging liquid during use, thereby solving the problem of easy formation of cross-contamination.

The detection equipment provided by the utility model includes the above-mentioned cleaning mechanism, which is fixedly arranged on the detection equipment. Due to the setting of the cleaning mechanism, the detection equipment has all the advantages of the above-mentioned cleaning mechanism, and can use the surface tension of the liquid to make the liquid form a liquid sealing film in the gap to prevent liquid leakage; therefore, the cleaning mechanism has the advantage of simple structure. During the process, the cleaning solution is prevented from forming a hanging solution, thereby solving the problem of easy cross-contamination.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is the sectional view of the cleaning mechanism that the utility model embodiment provides;

Fig. 2 is a side sectional view of the cleaning mechanism provided by the embodiment of the present invention;

Fig. 3 is a sectional view of the cleaning component body of the cleaning mechanism provided by the embodiment of the present invention;

Fig. 4 is a side view of the cleaning mechanism provided by the embodiment of the present invention;

Fig. 5 is a schematic diagram of the overall structure of the cleaning mechanism provided by the embodiment of the present invention.

Icons: 100-cleaning part body; 200-needle tube; 300-driving mechanism; 400-pump body; 500-liquid storage tank;

101 - liquid outlet channel; 102 - cleaning container; 103 - liquid inlet channel; 104 - first through hole; 1021 - second through hole.

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The utility model will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

The cleaning mechanism provided by the utility model includes a cleaning part body and a needle tube that moves up and down relative to the cleaning part body, and the needle tube runs through the cleaning part body; the gap between the outer wall of the needle tube and the cleaning part body It is set to 0.1 mm to 0.5 mm; the inside of the cleaning part body is provided with a liquid inlet channel for the cleaning liquid to enter and a liquid outlet channel for the cleaning liquid to flow out, and a liquid inlet channel is provided between the liquid inlet channel and the liquid outlet channel. A cleaning container, and the cleaning container communicates with the liquid inlet channel and the liquid outlet channel respectively. Since the gap between the outer wall of the needle tube and the body of the cleaning part is set at 0.1 mm to 0.5 mm, not only can the liquid form water droplets on the outer wall of the needle tube, but also the surface tension of the liquid can be used to make the liquid form a liquid sealing film in the gap to prevent the liquid from Leakage; therefore, the cleaning mechanism has the advantage of a simple structure, which prevents the cleaning liquid from forming a hanging liquid during use, thereby solving the problem of easy cross-contamination.

Embodiment one

Fig. 1 is a sectional view of the cleaning mechanism provided by the embodiment of the utility model; Fig. 2 is a side sectional view of the cleaning mechanism provided by the embodiment of the utility model; Fig. 3 is a view of the cleaning part body of the cleaning mechanism provided by the embodiment of the utility model Sectional view; FIG. 4 is a side view of the cleaning mechanism provided by the embodiment of the utility model; FIG. 5 is a schematic diagram of the overall structure of the cleaning mechanism provided by the embodiment of the utility model.

As shown in Figures 1-5, the cleaning mechanism provided by this embodiment includes: a cleaning component body 100 and a needle tube 200 that moves up and down relative to the cleaning component body 100, and the needle tube 200 runs through the cleaning component body 100; the outer wall of the needle tube 200 and the cleaning component The gap between the main bodies 100 is set to 0.1 mm to 0.5 mm; the inside of the cleaning component body 100 is provided with a liquid inlet channel 103 for the cleaning liquid to enter and a liquid outlet channel 101 for the cleaning liquid to flow out, the liquid inlet channel 103 and the liquid outlet channel A cleaning container 102 is arranged between 101, and the cleaning container 102 communicates with the liquid inlet channel 103 and the liquid outlet channel 101 respectively. Since an appropriate gap is reserved between the needle tube 200 and the cleaning component body 100, the cleaning liquid can be sealed by utilizing the surface tension of the liquid.

Specifically, the inside of the cleaning component body 100 is provided with a first through hole 104 for the passage of the needle tube 200, and the inside of the cleaning container 102 is provided with a second through hole 1021 for the passage of the needle tube 200; the axis of the first through hole 104 and the second through hole The axes of 1021 coincide; and the diameter of the second through hole 1021 is smaller than the diameter of the first through hole 104, greater than the diameter of the needle tube 200; not only can ensure that the needle tube 200 moves up and down in the first through hole 104 and the second through hole 1021, but also It can use the surface tension of the liquid to seal and improve the cleaning efficiency.

Further, the surface of the needle tube 200, the surface of the first through hole 104 and the surface of the second through hole 1021 are all smooth surfaces; The formation of water droplets further ensures that the cleaning fluid will not flow out from the gap, thereby forming a liquid-tight film.

Preferably, the height of the bottom of the liquid inlet channel 103 is higher than that of the top of the liquid outlet channel 101 , which facilitates the flow of the cleaning liquid from the liquid outlet channel 101 , and at the same time does not leave the cleaning liquid inside the cleaning container 102 .

It should be noted that the shape of the cleaning component body 100 can be various, such as a circle or a plate shape, as long as the outer wall of the needle tube 200 can be cleaned, the specific shape is not limited, so no examples will be given here. .

In an optional solution of this embodiment, the cleaning mechanism further includes a driving mechanism 300 for controlling the movement of the needle tube 200 , and the driving mechanism 300 is connected with the needle tube 200 .

Specifically, the moving speed of the needle tube 200 is 40mm/s-55mm/s, and the speed of 50mm/s is the best moving speed.

It should be noted that the driving mechanism 300 is set as a motor, or it can be set as another driving mechanism 300 as long as it can drive the needle tube 200 to move up and down, and examples are not given here.

In an optional solution of this embodiment, the cleaning mechanism further includes a pump body 400 for pumping liquid, and the pump body 400 is connected to the liquid outlet channel 101 .

Specifically, the pumping pressure of the pump body 400 is 0.5kg/cm ² -4kg/cm ² , and the pumping pressure of 2kg/cm ² is the best pumping pressure.

In an optional solution of this embodiment, the cleaning mechanism further includes a liquid storage tank 500 for storing the cleaning liquid, and the liquid storage tank 500 is connected to the liquid inlet channel 103 .

Specifically, the liquid storage tank 500 is connected to the liquid inlet channel 103 through a pipe, and one end of the pipe extends into the bottom end of the liquid storage tank 500 .

Cleaning process of the present utility model:

After the needle tube 200 has absorbed the reagent, the cleaning liquid enters the cleaning container 102 from the liquid inlet channel 103 during the upward running process, and flows out from the liquid outlet channel 101 after cleaning the outer wall of the needle tube 200; The gap outside the liquid outlet channel 101 flows out of the cleaning component body 100 , leaving an appropriate gap between the needle tube 200 and the cleaning component body 100 , which is sealed by the surface tension of the liquid.

In combination with the above detailed description of the utility model, it can be seen that the cleaning mechanism provided in this embodiment includes a cleaning component body 100 and a needle tube 200 that moves up and down relative to the cleaning component body 100, and the needle tube 200 runs through the cleaning component body 100; the outer wall of the needle tube 200 The gap between the cleaning component body 100 is set to 0.1 mm to 0.5 mm; the cleaning component body 100 is provided with a liquid inlet channel 103 for the cleaning liquid to enter and a liquid outlet channel 101 for the cleaning liquid to flow out, and the liquid inlet channel 103 and A cleaning container 102 is arranged between the liquid outlet channels 101 , and the cleaning container 102 communicates with the liquid inlet channel 103 and the liquid outlet channel 101 respectively. During the cleaning process, the cleaning liquid enters the cleaning container 102 through the liquid inlet channel 103 to clean the needle tube 200, and at the same time, the cleaning liquid can also flow out through the liquid outlet channel 101, so that the cleaning liquid will not remain in the cleaning container 102; And because the gap between the outer wall of the needle tube 200 and the cleaning component body 100 is set at 0.1 mm to 0.5 mm, not only can the liquid form water droplets on the outer wall of the needle tube 200, but also use the surface tension of the liquid to make the liquid form a liquid seal in the gap. The membrane prevents liquid leakage; therefore, the cleaning mechanism has the advantage of a simple structure, which prevents the cleaning liquid from forming hanging liquid during use, thus solving the problem of easy cross-contamination.

Embodiment two

The detection device provided in this embodiment includes: the above-mentioned cleaning mechanism, which is fixedly arranged on the detection device.

Specifically, the detection device can be a chemiluminescence immunodetection instrument.

The detection device provided in this embodiment includes the above cleaning mechanism, and the cleaning mechanism is fixedly arranged on the detection device. Due to the setting of the cleaning mechanism, the detection equipment has all the advantages of the above-mentioned cleaning mechanism, and can use the surface tension of the liquid to make the liquid form a liquid sealing film in the gap to prevent liquid leakage; therefore, the cleaning mechanism has the advantage of simple structure. During the process, the cleaning solution is prevented from forming a hanging solution, thereby solving the problem of easy cross-contamination.

When the utility model is used, it is not necessary to install a sealing ring, but the sealing ring needs to be installed when the prior art is used, so the prior art has the following disadvantages:

(1) The structure is complex, especially limited by the space structure in the precision and miniaturized medical instrument industry;

(2) The cleaning mechanism for installing the sealing ring is difficult to process. Since the structural size of the sealing ring is very small, the processing and inspection of the annular groove for installing the sealing ring is very troublesome;

(3) It is difficult to install and replace the sealing ring;

(4) Since the needle tube 200 will contact and rub against the sealing ring when it moves up and down, the sealing ring will wear and tear, and the seal will fail, so it needs to be replaced regularly; especially after the tip of the lower end of the needle tube 200 enters the cleaning container 102 to complete cleaning, it will go down again There is a process of "disengagement and re-entry" between the movement and the lower sealing ring, which may easily cause damage to the lower sealing ring;

(5) The outer surface of the needle tube 200 is prone to scratches during long-term friction with the sealing ring, thereby forming hanging liquid;

(6) Waste liquid is easy to remain around the sealing ring and in the sealing gap, forming cross-contamination.

However, the utility model does not need to install a sealing ring, and only needs to set the gap between the outer wall of the needle tube 200 and the cleaning part body 100 to 0.1 mm to 0.5 mm, and the surface tension of the liquid can be used to make the liquid form a liquid sealing film in the gap , to prevent liquid leakage; therefore, the cleaning mechanism has the advantage of a simple structure, which prevents the cleaning liquid from forming hanging liquid during use, thereby solving the problem of easy formation of cross-contamination.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A kind of 1. wiper mechanism, it is characterised in that including：Clean hardware body and moved down relative to described clean in hardware body Dynamic needle tubing, and the needle tubing runs through the cleaning hardware body；

   Gap setting between the needle tubing outer wall and the cleaning hardware body is 0.1mm~0.5mm；

   The cleaning part body interior is provided with the feed pathway entered for cleaning fluid and goes out liquid for cleaning fluid outflow Passage, is provided with cleaning container between the feed pathway and the liquid outlet channel, and the cleaning container respectively with it is described enter Liquid passage connects with the liquid outlet channel.
2. 2. wiper mechanism according to claim 1, it is characterised in that the cleaning part body interior is provided with for institute The first through hole that needle tubing passes through is stated, the cleaning container is internally provided with the second through hole passed through for the needle tubing；

   The axis of the first through hole overlaps with the axis of second through hole.
3. 3. wiper mechanism according to claim 2, it is characterised in that the surface of the needle tubing, the table of the first through hole Face and the surface of second through hole are smooth surface.
4. 4. wiper mechanism according to claim 1, it is characterised in that the bottom of the feed pathway highly goes out higher than described in The tip height of liquid passage.
5. 5. wiper mechanism according to claim 1, it is characterised in that also include being used for the driving for controlling the needle tubing motion Mechanism, the drive mechanism are connected with the needle tubing.
6. 6. wiper mechanism according to claim 1, it is characterised in that also include for drawing liquid the pump housing, the pump housing with Liquid outlet channel is connected.
7. 7. wiper mechanism according to claim 1, it is characterised in that also include being used for the liquid reserve tank for storing cleaning fluid, institute Liquid reserve tank is stated with the feed pathway to be connected.
8. 8. wiper mechanism according to claim 6, it is characterised in that the drawing liquid pressure of the pump housing is 0.5kg/cm²- 4kg/cm²。
9. 9. according to the wiper mechanism described in claim any one of 1-8, it is characterised in that the movement velocity of the needle tubing is 40mm/s~55mm/s.
10. A kind of 10. detection device, it is characterised in that including：Wiper mechanism described in the claims any one of 1-9, it is described Wiper mechanism is fixedly installed on detection device.