CN210690524U - Detection cavity - Google Patents

Abstract

The utility model discloses a detection cavity, which comprises a second cavity for detection, wherein an insert is arranged in the second cavity, a detection element placing area is arranged on the insert, and the insert can move in the second cavity so as to be contacted with or separated from detected liquid; during the movement of the insert, the liquid sample can be quantitatively transferred. In the utility model, the detecting element can move in the second cavity along with the movement of the inserting piece and can be contacted with or separated from the detected liquid; in the moving process of the inserting piece, the gas pressure in the second cavity can be changed, and the liquid sample can be quantitatively transferred into the second cavity, so that the quantitative detection of the liquid sample is facilitated, and the accuracy of a detection result is ensured; moreover, the second cavity and the bottom support are detachably connected, so that the inserting pieces or other parts can be conveniently placed in the second cavity.

Description

Detection cavity

Technical Field

The utility model particularly relates to a detect chamber.

Background

Currently, a large number of test devices for detecting whether a sample contains an analyte are used in hospitals or homes, and these test devices for rapid diagnosis generally comprise a test chamber, in which one or more test elements (e.g., test reagent strips) are disposed, and different test elements are used for different tests, such as early pregnancy test, drug abuse test, and the like.

Most detect the chamber and be a fixed cavity structures, the bottom that detects the chamber is integrated into one piece with other parts that detect the chamber, is not convenient for like this place other parts in detecting the intracavity, and detecting element is placed fixedly in detecting the intracavity moreover, and detecting element can not remove in detecting the intracavity, can not automatically regulated detecting element and the contact or the separation that detect the sample, is unfavorable for going on like this that detects, more is unfavorable for carrying out the quantitative determination of sample. However, in the precise detection process, the control of the amount of the sample often has a great influence on the detection result.

In view of the above technical problems, it is desirable to improve the above and provide an alternative way to overcome the shortcomings of the conventional technologies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a detection chamber is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

a detection cavity comprises a second cavity for detection, wherein an insert is arranged in the second cavity and provided with a detection element placing area, and the insert can move in the second cavity so as to be contacted with or separated from a detected liquid; during the movement of the insert, the liquid sample can be quantitatively transferred. In some preferred modes, the insert can move up and down in the second cavity under the action of external force, so that the insert can be contacted with or separated from the liquid sample to be detected; the detection element can move along with the movement of the inserting sheet; in some preferred modes, the air pressure in the second cavity can be changed during the movement of the plug, and the liquid sample can be quantitatively transferred into the second cavity after the pressure is changed, so that the quantitative detection of the liquid sample is facilitated.

Furthermore, the inserting piece comprises an inserting plate, at least one detection element placing area is arranged on the inserting plate and used for placing detection elements, in some preferred modes, a plurality of detection element placing areas are arranged on the side wall of the inserting plate, the detection elements for detecting the same or different substances can be placed in the plurality of detection element placing areas, and one or more substances can be detected simultaneously. Furthermore, a separation arm is arranged between the detection element placing areas to separate the detection elements, so that the detection elements are not influenced by each other.

Furthermore, the upper end of the inserting plate is connected with a first supporting sheet, and the upper surface of the first supporting sheet is connected with a bolt. In some preferred forms, the first support sheet is perpendicular to the insert plate. In some preferred modes, the bolt is positioned in the middle of the first supporting sheet; in some preferred forms, the plug includes a first cylinder and a second cylinder, the second cylinder is fixedly connected to the first support plate, the first cylinder and the second cylinder are fixedly connected or are integrally formed, the first cylinder is located on the upper portion of the second cylinder, and the cross-sectional diameter of the first cylinder is larger than that of the second cylinder, so that the assembly of other components, such as a sealing element, on the second cylinder is facilitated. In some preferred modes, the bolt can be assembled with other components, for example, the bolt can be inserted into the jack, and when an external force is applied to the bolt, the bolt can move in the jack, so that the inserting sheet and the detection element can move.

Furthermore, the lower end of the inserting plate is connected with a second supporting sheet; in some preferred modes, the second supporting sheet is arranged at the lower end of the inserting plate, but not at the end position, but at a position above the end position, so that a space for placing the elastic element can be reserved, and the detection element is prevented from being too far away from the bottom detection liquid, and the detection is not facilitated if the detection element is too far away from the bottom detection liquid. In some preferred modes, the second supporting sheet is perpendicular to the inserting plate. In some preferred modes, the bottom of the inserting plate is provided with a door-shaped opening, so that the detection liquid can flow into the door-shaped opening, the detection is convenient, and the overflow phenomenon on the detection element can be avoided. The bottom of the second supporting sheet is connected with a support column; the elastic element is sleeved on the periphery of the support. In some preferred modes, the elastic element can be a spring, the spring is sleeved on the periphery of the support post, the spring is connected to the bottom of the second support sheet, the compressed length of the spring is greater than that of the support post, the support post can avoid the spring from being twisted and deviated in the compression process, and the support post does not influence the spring to be compressed.

Further, the plug pin further comprises a sealing element which can be sleeved on the plug pin. In some preferred modes, the sealing element is an O-shaped ring which can be sleeved on the second cylinder and can play a sealing role.

Furthermore, the detection element placing area is internally provided with a lug which can fix the detection element, so that the detection element is positioned at a fixed position, the smooth detection is ensured, and the detection result is more accurate and reliable; the arrangement of the convex block can avoid the situations of displacement, falling down and the like of the detection element during detection. In some preferred modes, the lower part of the detection element placing area is provided with a flow guide channel, and the flow guide channel can guide the liquid sample to contact the detection element, so that the liquid sample can be prevented from contacting the detection element in a large amount, and the accuracy of a detection result is prevented from being influenced.

Furthermore, the second cavity comprises a second cavity and a bottom support, the second cavity is detachably connected with the bottom support, an opening capable of being communicated with another cavity is formed in the side surface of the second cavity, and the other cavity can be a first cavity for collecting liquid samples or other cavities; the upper surface of the second cavity is provided with a jack which can allow the bolt to move therein. In some preferred modes, the second cavity and the bottom support can be adhered together and are not integrally formed; in some preferred modes, the second cavity can be the joint together with the collet, and the collet parcel is outside the second cavity, and the collet can adopt elastic material, for example the rubber material, and second cavity and collet closely combine like this, can not the weeping. In some preferred modes, the second cavity is in the same place the joint with the collet, and the collet parcel is in the second cavity outside, and the junction of second cavity and collet is equipped with the sealing member, also can strengthen second cavity and collet zonulae occludens like this, avoids the weeping. In some preferred modes, when the opening is opened, the second cavity can be communicated with another adjacent cavity, the second cavity can obtain a liquid sample from another cavity through the opening, and when the opening is closed, the second cavity is separated from the other cavity. In some preferred forms, the socket is located in a central position on the upper surface of the second chamber, and other components such as a latch may be inserted into the socket for assembly, and the socket may allow the latch to move therein.

Further, the second cavity is inclined, so that the component placed in the second cavity is in an inclined state, and operations such as pouring and transferring of liquid samples are facilitated; the first protruding space is arranged on one inclined side face of the second cavity, and the arrangement of the first protruding space enables the interior of the second cavity to form a yielding structure, so that operation can be conveniently achieved, for example, a component which is originally sealed by the side wall of the detected cavity reaches the yielding structure, sealing can be removed, and the component becomes communicated.

Furthermore, the bottom support is obliquely arranged, so that the connection and the assembly between the bottom support and the second cavity body are convenient; in some preferred modes, a second protruding space is arranged on one inclined side face of the bottom support, and the second protruding space can accommodate the first protruding space, so that the combination between the bottom support and the second cavity is facilitated.

Further, the bottom support is provided with a liquid storage space which can store a certain amount of liquid; in some preferred modes, the size of the bottom support is larger than that of the second cavity, and the bottom support wraps the bottom of the second cavity; in some preferred modes, a sealing piece is arranged between the bottom support and the second cavity, and in some preferred modes, the sealing piece can be made of soft sealing glue.

The utility model has the advantages that:

(1) in the utility model, the detecting element can move in the second cavity along with the movement of the inserting piece, thereby being contacted with or separated from the detected liquid; the inserted sheet removes the in-process, can change the gas pressure size in the second chamber, and the back is changed to pressure, can transfer the liquid sample ration to the second chamber in, is favorable to the quantitative determination of liquid sample, ensures the accuracy of testing result.

(2) The utility model discloses in, inserted sheet or other parts are convenient for place in the second cavity to second cavity and collet detachable connection, and in addition, second cavity upper surface is equipped with and can allows other parts, for example the jack that the bolt removed wherein, the jack setting does benefit to detecting element and removes in the second cavity, is favorable to automatically regulated detecting element and the contact or the separation of waiting to detect the sample, is convenient for carry out the quantitative determination of sample.

Drawings

Figure 1 is an exploded view of the inventive device (with the second chamber on the left).

Fig. 2 is an exploded view of the device of the present invention in another state (wherein the second chamber is on the right side).

Fig. 3 is a schematic structural view of the first bottle cap.

Fig. 4 is a schematic structural view of the first bottle cap and the cap body in a separated state.

Fig. 5 is a schematic view of the first connecting member in a separated state from the blocking member.

Fig. 6 is a schematic view of the first connecting member and the partition member connected together (showing the structure of the arc-shaped projection).

Fig. 7 is a schematic view of the structure of the cover body and the partition member connected together (showing the structure of the arc-shaped projection).

Fig. 8 is a schematic view of the structure of the insert.

FIG. 9 is a schematic view of the back side of the insert.

Fig. 10 is a right side view of fig. 8.

Fig. 11 is a schematic view of the structure of the sealing member.

Fig. 12 is a schematic view of the construction of the cup (the mounting is hidden to show the construction of the bottom of the second chamber).

Fig. 13 is a schematic view of the structure of fig. 12 after cutting.

Fig. 14 is a schematic structural view in the process of closing the cup body with the lid body.

Fig. 15 is a longitudinal sectional view of fig. 14.

Fig. 16 is a schematic structural view of the lid body and the cup body in a separated state.

Fig. 17 is a longitudinal cross-sectional view of fig. 16 (with the cover hidden).

Fig. 18 is a longitudinal sectional view during the process of closing the cup body with the lid body.

Fig. 19 is a longitudinal cross-sectional view during the process of closing the lid onto the cup (the arcuate projections press against the latches and the sealing element no longer seals the second chamber).

Fig. 20 is a longitudinal cross-sectional view during the process of closing the lid onto the cup (the arcuate tab is rotated to another position, the arcuate tab does not press the latch, and the sealing element seals the second chamber).

Fig. 21 is a schematic structural view showing the first cap and the cover in a separated state after the sample detection is completed, and the fourth cavity and the first cavity are in a separated state at the same time.

Fig. 22 is a schematic structural view of the fourth chamber in a closed state.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings, and it should be noted that the embodiments are only specific illustrations of the present invention, and should not be construed as limitations of the present invention.

Reference is made to the accompanying figures 1-22 for a specific embodiment.

As shown in fig. 1-2 and 18-20, a detection device comprises a first cavity 1 for collection and a second cavity for detection, wherein a detection element is arranged in the second cavity, an opening 4 capable of being communicated with the second cavity is formed in the first cavity 1, the opening 4 can be sealed by pressure, and after sealing, the communication between the first cavity and the second cavity can be cut off; after the pressure is changed, the first cavity 1 and the second cavity can be communicated, and after the first cavity 1 and the second cavity are communicated, the sample can enter the second cavity from the first cavity 1. In some preferred modes, the second cavity is arranged adjacent to the first cavity 1, and the second cavity is positioned at one side of the first cavity 1, so that the sample can enter the second cavity from the first cavity 1. In some preferred forms, the first chamber 1 and the second chamber have a common wall 9, and the opening 4 is located in the common wall 9, so as to facilitate the liquid sample in the first chamber 1 to enter the second chamber.

As shown in fig. 1-2, in this embodiment, the detection device includes a cover 7 and a cup body, the cup body includes a first cavity 1 and a second cavity, the cover 7 can cover the first cavity 1, the cover 7 is connected to the first cavity 1 through a thread, in other embodiments, the cover 7 and the first cavity 1 may be connected in a snap-fit manner or in other connection manners; the second cavity is adjacent to the first cavity 1, the second cavity is positioned on one side of the first cavity 1, the detection element is arranged in the second cavity, the first cavity 1 and the second cavity can be communicated or sealed, and when the first cavity 1 is communicated with the second cavity, a liquid sample can enter the second cavity from the first cavity 1; as shown in fig. 17-20, the first chamber 1 is provided with an opening 4 capable of communicating with the second chamber, the opening 4 being capable of being pressure sealed, such as by gas pressure; when the pressure on the left side and the right side of the opening 4 is equal or the gas pressure of the second cavity at the opening 4 is greater than the liquid pressure in the first cavity 1 at the opening 4, even if the first cavity 1 is filled with the liquid sample and the height of the liquid sample is higher than the opening 4, the liquid sample in the first cavity 1 cannot enter the second cavity from the opening 4, and the first cavity 1 and the second cavity are closed and separated, so that the liquid sample cannot be transferred; when the gas pressure of the second cavity at the opening 4 is smaller than the liquid pressure in the first cavity 1 at the opening 4, the first cavity 1 is communicated with the second cavity, and after the first cavity 1 is communicated with the second cavity, the sample can enter the second cavity from the first cavity 1, so that the liquid sample is transferred.

In some preferred modes, as shown in fig. 1-2, the second cavity comprises a second cavity 2 and a bottom support 20, the bottom support 20 can receive the liquid sample transferred from the first cavity 1 to the second cavity, and in some preferred modes, the second cavity 2 is detachably connected with the bottom support 20; in some preferred modes, the second cavity 2 and the bottom support 20 can be glued together and not integrally formed; in some preferred modes, second cavity 2 and collet 20 can be the joint together, and collet 20 parcel is outside second cavity 2, and collet 20 can adopt elastic material, for example the rubber material, and second cavity 2 and collet 20 close combination can not the weeping like this. In some preferred modes, second cavity 2 is in the same place the joint with collet 20, and collet 20 parcel is in the outside of second cavity 2 bottom, and the junction of second cavity 2 and collet 20 is equipped with the sealing member, also can strengthen like this second cavity 2 and collet 20 close coupling, avoids the weeping.

In some preferred modes, the second cavity 2 is arranged obliquely, so that the component placed in the second cavity is in an inclined state, which facilitates some operations, such as pouring and transferring liquid samples. In some preferred forms, the mounting 20 is also inclined to facilitate connection and assembly between the mounting and the second housing. In some preferred forms the mounting 20 is inclined at an angle corresponding to the angle at which the second chamber 2 is inclined, and in some preferred forms the mounting has a reservoir 302 capable of storing a quantity of liquid. In some preferred forms, the shoe 20 is larger in size than the second cavity 2, the shoe 20 wrapping around the bottom of the second cavity 2. In some preferred modes, a sealing piece is arranged between the bottom support 20 and the second cavity 2, and in some preferred modes, the sealing piece can adopt soft sealing glue. In some preferred modes, the bottom surface of the bottom support 20 is a horizontal plane, and the bottom support 20 can be horizontally placed on the horizontal plane, so that the device is more stable and is beneficial to detection; in some preferred modes, the angle between the second cavity 2 and the horizontal plane is more than 0 degrees and less than 90 degrees, so that the third cavity can transfer the liquid sample to the detection cavity.

In some preferred modes, a first protruding space 300 is provided on one inclined side surface of the second cavity 2, and the first protruding space is provided to enable the inside of the second cavity 2 to form a yielding structure, so that some operations are facilitated. Furthermore, a second protruding space 301 is arranged on one inclined side of the bottom support, and the second protruding space 301 can accommodate the first protruding space 300, so that the bottom support and the second cavity 2 can be combined.

In some preferred manners, as shown in fig. 1-2, an insertion sheet 21 is disposed in the second cavity, as shown in fig. 8-10, the insertion sheet 21 includes an insertion plate 211, a first supporting sheet 212, a second supporting sheet 213, a plug pin 23, an elastic element, and a support column 214, the first supporting sheet 212 and the second supporting sheet 213 are respectively fixedly connected to the insertion plate 211, the plug pin 23 is fixedly connected to the first supporting sheet 212, and the support column 214 is fixedly connected to a middle position of a bottom of the second supporting sheet 212; the elastic element is fixedly connected with the second support sheet and is sleeved on the periphery of the support. In some preferred forms, the resilient member may be a spring 72, the spring 72 may be compressed or automatically rebound, and in some preferred forms, as shown in fig. 8-10, the spring 72 is fixedly connected to the bottom of the first supporting plate 212, the spring 72 is sleeved on the outer periphery of the supporting post 214, and the compressed length of the spring 72 is greater than the length of the supporting post 214, so that the supporting post 214 can prevent the spring 72 from twisting and deviating during the compression process, and the supporting post 214 does not affect the compression of the spring 72.

In some preferred forms, as shown in fig. 8-10, the latch 23 is located at a central position of the first support sheet 212; in some preferred modes, the plug 23 comprises a first cylinder and a second cylinder, the second cylinder is fixedly connected with the first supporting sheet 212, the first cylinder is fixedly connected with the second cylinder, the first cylinder is positioned at the upper part of the second cylinder, and the cross-sectional diameter of the first cylinder is larger than that of the second cylinder; in some preferred manners, the detection element may be placed on the card 211; in some preferred forms, as shown in fig. 8-10, the first support piece 212 and the second support piece 213 are respectively perpendicular to the plate 211, the first support piece 212 is connected to the upper end of the plate 211, and the second support piece 213 is located at the lower end of the plate 211, but not at the end position but at a position above the end position, so as to leave a space for placing the elastic element and to avoid that the detecting element is too far from the shoe 20, which would be detrimental to the detection.

In some preferred modes, as shown in fig. 15 and 17-20, the insert plate 211 is arranged along the inner wall surface of the outer side wall of the second cavity 2, the inclination angle of the insert plate 211 is consistent with that of the second cavity 2, and in some preferred modes, as shown in fig. 1, the upper surface of the second cavity is provided with a plug hole 22, and the plug pin 23 can be inserted into the plug hole 22 and extend out of the plug hole 22 to expose the head of the plug pin 23; the plug 23 is inserted into the insertion hole 22, and the insert 21 is installed in the second cavity, which is provided with a sealing element in some preferred modes, as shown in figures 1-2 and 10; the sealing element 71 can be sleeved on the second cylinder of the plug 23, the sealing element 71 is positioned inside the second cavity, and the sealing element 71 can seal the second cavity, so that the second cavity is isolated from the outside and does not exchange gas or other substances with the outside; when the plug 23 is pressed downwards, the insert 21 and the sealing element 71 can both move downwards in the second cavity, the spring 72 is compressed, the second cavity is communicated with the outside at the moment, the second cavity can exchange gas with the outside, the gas pressure in the second cavity is changed, specifically, compared with the situation that the second cavity is in a closed state, the pressure in the second cavity is reduced at the moment, when the gas pressure of the second cavity at the opening 4 is smaller than the liquid pressure in the first cavity 1 at the opening 4, the first cavity 1 is communicated with the second cavity, and after the first cavity 1 is communicated with the second cavity, a sample can enter the second cavity from the first cavity 1, so that the transfer of the liquid sample is realized; when the bolt 23 is no longer pressed downwards, the spring 72 will automatically rebound, the second support sheet 213 will be pushed upwards, the insert 21 and the sealing element 71 can both move upwards in the second cavity, and finally, the sealing element 71 moves to the uppermost end of the second cavity, and the sealing element 71 can seal the second cavity, so that the second cavity is isolated from the outside and does not exchange gas or other substances with the outside; the liquid sample in the first chamber 1 will slowly no longer flow into the second chamber, the gas pressure in the second chamber will change, specifically, the gas pressure in the second chamber will increase at this time compared to before, when the gas pressure of the second chamber at the opening 4 is greater than or equal to the liquid pressure in the first chamber 1 at the opening 4, the communication between the first chamber 1 and the second chamber is cut off, and the transfer of the liquid sample cannot be performed between the two.

In some preferred modes, as shown in fig. 8, the sidewall of the insertion plate 211 is provided with at least one detection element placement area 24 for placing a detection element; in some preferred modes, a plurality of detection element placement regions 24 can be used to place detection elements for detecting the same or different substances, so that simultaneous detection of one or more substances can be achieved; in some preferred modes, a plurality of detection element placing areas 24 are provided with partition arms 25, and each detection element is separated and does not influence each other; in some preferred modes, detection element placing area 24 is equipped with the lug, and the lug can fix detection element, makes detection element be in fixed position, guarantees going on smoothly of detection for the testing result is more accurate, reliable, and when the setting of lug can avoid detecting, the circumstances such as detection element aversion, fall appear, and in some preferred modes, the lug includes first lug 26 and second lug 27, and first lug 26 mutually supports with second lug 27, makes like this and makes detection element more stable. In some preferred modes, as shown in fig. 8, a flow guide channel 28 is further provided at the lower portion of the detection element placement area 24, and the flow guide channel 28 can guide the liquid sample to contact the detection element, so as to prevent the liquid sample from contacting the detection element in a large amount and affecting the accuracy of the detection result. In some preferred modes, after the detection element is placed in the detection element placing area 24, the detection element is parallel to the outer side wall of the second cavity 2, and the inclination angle of the detection element and the second cavity 2 is consistent, so that a certain included angle is formed between the detection element and the bottom of the detection device; compared with the arrangement that the detection element is vertical to the horizontal plane, the detection element is in an inclined state, so that the liquid sample can enter the detection element more quickly, and the running board detection is completed quickly on the detection element. In some preferred modes, the detection element can move in the second cavity along with the movement of the insert plate 211. In some preferred forms, the sealing element 71 is movable within the second cavity in response to movement of the sensing element.

In some preferred modes, the device further comprises a linkage element, and the linkage element can drive the detection element to move. In some preferred modes, the movement of the detection element is realized under the action of external force, in some preferred modes, the linkage element can be linked with other parts of the detection device, for example, the linkage element can be linked with the inserting sheet 21, the inserting sheet 21 moves under the action of the linkage element, so as to drive the detection element to move, and in some preferred modes, the linkage element can be other parts on the detection device, such as the cover body 7; as shown in fig. 5-7, in the present embodiment, the linkage element is a cover 7, a section of arc-shaped protrusion 73 is disposed on the circumferential surface of the cover 7, the arc-shaped protrusion 73 protrudes from the cover 7, and when the cover 7 is rotated to cover the first cavity 1, the arc-shaped protrusion 73 is first close to the first cavity 1; specifically, the cover body 7 is rotated to move the cover body 7 downwards, so that the arc-shaped protrusion 73 is in contact with the bolt 23, the cover body 7 is continuously rotated, the arc-shaped protrusion 73 presses the bolt 23 to provide a downward acting force to the bolt 23, the bolt 23 is under pressure, the whole insert 21 moves downwards, the sealing element 71 and the detection element move downwards, the spring 72 is compressed, the sealing element 71 does not seal the second cavity, the second cavity is communicated with the outside, the second cavity can exchange gas with the outside, the pressure in the second cavity is changed, and compared with the situation that the second cavity is in a closed state, the pressure in the second cavity is reduced, when the gas pressure of the second cavity at the opening 4 is smaller than the liquid pressure in the first cavity 1 at the opening 4, the first cavity 1 is communicated with the second cavity, and after the first cavity 1 is communicated with the second cavity, the sample can enter the second cavity from the first cavity 1, so that the liquid sample is transferred. Continuing to rotate the cover 7, the arc-shaped projection 73 is rotated to another position, as shown in fig. 20, at this position, the arc-shaped projection 73 is no longer in contact with the latch 23, the latch 23 is no longer subjected to a downward acting force, at this time, the spring 72 will automatically rebound, the second support plate 213 will be subjected to an upward pushing force, both the insert 21 and the sealing element 71 can move upward in the second chamber, and finally, the latch 23 moves to the initial position and is no longer moved, and the latch 23 is also not in contact with the cover 7 or the latch 23 is in contact with the cover 7, but there is no interaction force between the two, at this time, the sealing element 71 moves to the uppermost end of the second chamber, and the sealing element 71 can seal the second chamber, so that the second chamber is isolated from the outside, and does not exchange gas; the liquid sample in the first chamber 1 can slowly no longer flow into the second chamber, and the gas pressure in the second chamber will change, specifically, compare with second chamber and external intercommunication, the gas pressure in the second chamber will increase this moment, and when the gas pressure of opening 4 department second chamber was greater than or equal to the liquid pressure in opening 4 department first chamber 1, the intercommunication between first chamber 1 and the second chamber was cut off, can not carry out the transfer of liquid sample between the two.

In summary, in the time period of the interaction between the arc-shaped projection 73 and the pin 23 or the time period of the downward acting force applied to the pin 23, the first cavity 1 is communicated with the second cavity, and the liquid sample in the first cavity 1 can enter the second cavity, so that the quality of the liquid sample in the first cavity 1 entering the second cavity is determined by the interaction time of the arc-shaped projection 73 and the pin 23 or the downward acting force applied to the pin 23, and the quality or volume of the liquid sample entering the second cavity can be controlled by controlling the interaction time of the arc-shaped projection 73 and the pin 23 or the downward acting force applied to the pin 23, so that the purposes of transferring the liquid sample quantitatively and detecting the liquid sample quantitatively can be achieved, and the detection result is more real and reliable and has higher accuracy; and the mass of the liquid sample entering the second chamber can be adjusted by controlling the time. During the time period when the arc-shaped projection 73 interacts with the bolt 23 or the bolt 23 is subjected to downward acting force, the board running can be completed at the same time, and the detection result is obtained.

In some preferred embodiments, as shown in fig. 13,15,17-20, the first chamber 1 and the second chamber have a common wall 9, in some preferred embodiments, the first supporting plate 212 can slide on the common wall 9, and an abdicating notch 8 can be formed on the common wall 9, as shown in fig. 13 and 15, when the second supporting plate 213 is located at the abdicating notch 8, the liquid sample stored in the second supporting plate 213 will flow into the bottom of the second chamber. In some preferred forms, the common wall 9 is inclined to some extent, the angle between the arm surface 9 and the horizontal being greater than 0 ° and less than 90 °. In some preferred forms, the common wall 9 is inclined at an angle corresponding to the angle at which the second chamber 2 is inclined, and in some preferred forms, the mouth of the second support piece 213 is downward to facilitate the outflow of the liquid sample.

Further, the testing device also comprises a fourth cavity 10 for collecting the secondary confirmation test sample, as shown in fig. 1-2 and 14-22, the fourth cavity 10 can be communicated with or separated from the first cavity 1, in some preferred modes, the fourth cavity 10 and the first cavity 1 can be detachably combined, the fourth cavity 10 and the first cavity 1 can be connected through clamping connection or screw connection, in other preferred modes, the fourth cavity 10 and the first cavity 1 can also be connected through other modes; in some preferred modes, as shown in fig. 12 to 13, the first chamber 1 has a first connecting channel 31, the first chamber 1 is connected with the fourth chamber 10 through the first connecting channel 31, the first connecting channel 31 protrudes from the bottom surface of the first chamber 1, and the first connecting channel 31 is a cylindrical channel; as shown in fig. 21, the fourth chamber 10 has the second connecting channel 32 protruding upward, the second connecting channel 32 is also a cylindrical channel, the diameter of the second connecting channel 32 is larger than that of the first connecting channel 31, then the second connecting channel 32 can be sleeved outside the first connecting channel 31, so that the liquid sample in the first connecting channel 31 can completely enter the second connecting channel 32 and then flow into the fourth chamber without leaking the liquid sample and flow to other places except the second connecting channel 32; as shown in fig. 17, the first connecting passage 31 is connected to the second connecting passage 32, and at this time, the fourth chamber 10 is in a communicating state with the first chamber 1; if a plug or other partition is inserted into the first connecting passage 31, the fourth chamber 10 and the first chamber 1 are partitioned.

Further, as shown in fig. 1-2, the detection apparatus further includes a partition element 80 for communicating or partitioning the first chamber 1 and the fourth chamber 10, in some preferred manners, as shown in fig. 5, the partition element 80 includes a second connecting member 61 and a head portion, the second connecting member 61 and the head portion are integrally formed, in some preferred manners, as shown in fig. 5, the second connecting member 61 of the partition element 80 can be fixedly connected with the first connecting member 33, in some preferred manners, the first connecting member 33 is fixedly connected with the cover body 7, and may be integrally formed, in some preferred manners, the first connecting member 33 is cylindrical, an end of the first connecting member 33 away from the cover body 7 is provided with a cylindrical opening, in some preferred manners, the second connecting member 61 is also cylindrical, the second connecting member 61 is connected with the first connecting member 33, and may be connected by a snap connection or a threaded connection or other connection manner, in the present embodiment, as shown in fig. 8, the second connecting member 61 can be inserted into the cylindrical opening of the first connecting member 33 to achieve connection.

In some preferred modes, as shown in fig. 5, the head of the partition element 80 has a tip 35, the head of the partition element 80 can enter the first connecting passage 31 to partition the first cavity 1 and the fourth cavity 10, and when the partition element 80 is pulled out from the first connecting passage 31, the first cavity 1 and the fourth cavity 10 can be communicated. In some preferred modes, as shown in fig. 5 to 7, the head of the partition element 80 is provided with a first protrusion 36 and a second protrusion 361, in some preferred modes, the first protrusion 36 and the second protrusion 361 are arranged in parallel, the first protrusion 36 and the second protrusion 361 are both arranged on the periphery of the head of the partition element 80, in some preferred modes, a sealing ring is arranged between the first protrusion 36 and the second protrusion 361, the first protrusion 36 can prevent the sealing ring from moving upwards, and the second protrusion 361 can prevent the sealing ring from moving downwards; in some preferred modes, the number of the sealing rings can be one or more, and the sealing rings can play a role in sealing, so that the first cavity 1 and the fourth cavity 10 can be completely separated, and the liquid sample can be prevented from flowing out of the connecting gap.

In some preferred forms, as shown in fig. 5-7 and 18-20, the head of the partition element 80 is provided with two second openings 37, the two second openings 37 are oppositely arranged and can be communicated with each other, and in some preferred forms, the second openings 37 are positioned below the sealing ring 36 and above the tip 35; in some preferred forms, as shown in fig. 5, the head of the partition element 80 has a cavity, two second openings 37 can communicate with the cavity, the liquid sample can enter the cavity through the second openings 37, the cavity can temporarily store a certain volume of the liquid sample, so that, if the fourth chamber 10 is filled with the liquid sample and the blocking member 80 is interlocked by the interlocking member, the blocking member 80 moves down continuously and enters the fourth chamber 10 continuously, the blocking member 80 will be subjected to a resistance force, and the liquid sample in the fourth chamber 10 can enter the cavity through the second opening 37, so that the resistance force applied to the blocking member 80 is reduced, the blocking member 80 is not influenced to continue to enter the fourth chamber 10, when the blocking element 80 has completely entered the fourth chamber 10, the sealing ring 36 is able to completely block the communication between the first chamber 1 and the fourth chamber 10, at which point the fourth chamber 10 can be separated from the first chamber 1.

Further, the interlocking element can interlock with the blocking element 80 so that the blocking element 80 communicates with or blocks the first chamber 1 and the fourth chamber 10; as shown in fig. 4-6, in the present embodiment, the linkage element is the cover 7, the first connecting member 33 is fixedly connected to the cover 7, and the partition element 80 is fixedly connected to the first connecting member 33, so that the cover 7 moves and the partition element 80 moves along with the movement, when the cover 7 is continuously rotated and screwed, the partition element 80 will continuously move down until entering the first connecting passage 31, as shown in fig. 20, at this time, the first cavity 1 and the fourth cavity 10 are in a partition state, when the cover 7 is continuously rotated and unscrewed, the partition element 80 will continuously move up, the partition element 80 can be separated from the first connecting passage 31, and the first cavity 1 and the fourth cavity 10 can be in a communicating state. In some preferred manners, the blocking element 80 may be interlocked by an interlocking element to communicate or block the first chamber 1 and the fourth chamber 10. In some preferred forms, the linkage element may simultaneously link the obstructing element 80 and the detecting element; in this embodiment, the linkage element is the cover 7, and the partition element 80 moves along with the movement of the cover 7; the detection element is positioned on the inserting sheet 21, the plug pin 23 of the inserting sheet 21 is inserted into the plug hole 22 and extends out of the plug hole 22, the cover body 7 is positioned above the plug hole 22, when the cover body 7 is continuously rotated and screwed, the partition element 80 is continuously moved downwards, the arc-shaped projection 73 is continuously moved downwards, initially, the arc-shaped projection 73 is in contact with the plug pin 23, the cover body 7 is continuously rotated, the arc-shaped projection 73 presses the plug pin 23 to provide a downward acting force for the plug pin 23, the plug pin 23 is stressed, the whole inserting sheet 21 moves downwards, the sealing element 71 and the detection element move downwards, and the spring 72 is compressed, so that the linkage element can simultaneously link the partition element 80 and the detection element.

Further, when the partition element 80 partitions the first cavity 1 and the fourth cavity 10, the first cavity 1 can be separated from the fourth cavity 10, and in some preferred manners, the fourth cavity 10 can be separated from the first cavity 1, as shown in fig. 20, the partition element 80 partitions the first cavity 1 and the fourth cavity 10, and at this time, the fourth cavity can be pulled out downwards, so that the fourth cavity 10 can be separated from the first cavity 1. In some preferred manners, a closing element of the fourth chamber 10 may be further provided, and after the fourth chamber 10 is separated from the first chamber 1, the fourth chamber 10 may be closed to form a closed independent chamber, so as to store the liquid sample for the secondary detection, as shown in fig. 21-22, the closing element is a first bottle cap 12, the first bottle cap 12 can cover the fourth chamber 10, an internal thread is provided inside the first bottle cap 12, an external thread is provided on an outer wall of the second connecting channel 32 of the fourth chamber 10, and the internal thread and the external thread cooperate with each other, so that the first bottle cap 12 can be connected and covered with the fourth chamber 10, and thus the liquid sample stored in the fourth chamber 10 can be protected, so that the liquid sample stored in the fourth chamber 10 cannot leak or be damaged.

In some preferred modes, as shown in fig. 4, the first bottle cap 12 can be fixed on the cap body 7, the upper surface of the cap body 7 is provided with a concave pit 38, a convex pillar 39 is arranged in the middle of the concave pit 38, the interior of the convex pillar 39 is hollow, the upper end of the convex pillar 39 is provided with a first opening 43, in some preferred modes, as shown in fig. 3, a first column 40 matched with the first opening 43 is arranged in the first bottle cap 12, and the first column 40 can be inserted into the first opening 43, so that the first bottle cap 12 and the cap body 7 are combined; in some preferred modes, as shown in fig. 3, a circular side wall 42 is further provided inside the first bottle cap 12, the circular side wall 42 surrounds the periphery of the first cylinder 40, as shown in fig. 4, a protruding rib 41 is provided on the outer side wall of the protruding column 39, and the circular side wall 42 can cooperate with the protruding rib 41 to fasten the first bottle cap 12 and the cap body 7; in some preferred manners, the protruding rib 41 may be multiple, in some preferred manners, the multiple protruding ribs 41 are uniformly disposed on the outer side wall of the protruding pillar 39, the protruding rib 41 is disposed to fix the first bottle cap 12, when needed, the first bottle cap 12 may be pulled out to be separated from the cover body 7, and the first bottle cap 12 is covered on the second connecting channel 32 of the fourth cavity 10, so as to achieve the effect of closing the fourth cavity 10.

Further, the linkage element comprises a cover 7, which in some preferred forms is provided with an arrow, and the cover 7 can be screwed in the direction indicated by the arrow, so that the cover 7 continuously covers the first cavity; in some preferred modes, when the cover 7 is closed, the detection element and/or the partition element 80 can be linked; in the process that the cover body 7 covers the first cavity 1, namely the process that the cover body 7 is continuously rotated and screwed, the cover body 7 continuously moves downwards, and the partition element 80 moves along with the movement of the cover body 7; the detection element is positioned on the inserting sheet 21, the plug pin 23 of the inserting sheet 21 is inserted into the plug hole 22 and extends out of the plug hole 22, the cover body 7 is positioned above the plug hole 22, when the cover body 7 is continuously rotated and screwed, the separation element 80 is continuously moved downwards, the arc-shaped projection 73 is continuously moved downwards, initially, the arc-shaped projection 73 is in contact with the plug pin 23, but no interaction force exists between the two, the cover body 7 is continuously rotated and screwed, the plug pin 23 is pressed by the arc-shaped projection 73, a downward acting force is given to the plug pin 23, the plug pin 23 is pressed, the whole inserting sheet 21 is moved downwards, the sealing element 71 and the detection element are moved downwards, and the spring 72 is compressed, so that the detection element and/or the separation element 80 can be linked when the cover body. In some preferred modes, the cover 7 is closed downwards and closes the first cavity, the cover 7 can press the insert 21 downwards while moving downwards, and the insert 21 moves in the second cavity, so that the detection element moves in the second cavity.

In some preferred modes, the cup body further comprises a supporting side wall 51, as shown in fig. 1-2, the supporting side wall 51 is an arc-shaped side wall, the supporting side wall 51 is fixedly connected with the side wall of the first cavity 1, and in some preferred modes, the supporting side wall 51 does not completely surround the periphery of the fourth cavity 10, but a gap is left, so that a user can conveniently install or dismantle the fourth cavity 10; in some preferred modes, the bottom of the supporting sidewall 51 is horizontal, so that the supporting sidewall 51 can be horizontally placed on a horizontal plane, and thus the whole device can be stably placed for transportation or detection.

The utility model also provides a use method of this detection device, now describe with reference to fig. 1-22, including the following steps:

firstly, (1) the cover body 7 is opened, a liquid sample is added into the first cavity 1, as shown in fig. 16-17, the first cavity 1 is communicated with the fourth cavity, the liquid sample can flow into the fourth cavity 10 from the first connecting channel 31 of the first cavity 1, the liquid sample in the fourth cavity 10 is increased, when the liquid sample in the fourth cavity 10 is full, the liquid sample can be stored in the first cavity 1, the height of the liquid sample is higher than that of the position of the opening, at this time, the plug 23 is inserted into the inserting hole 22, the head of the plug 23 is exposed, the sealing element 71 is sleeved on the plug 23, the sealing element 71 is positioned in the second cavity, and the sealing element 71 seals the second cavity, so that the second cavity is isolated from the outside; the liquid sample in the first cavity 1 cannot enter the second cavity through the opening 4, because the gas pressure of the second cavity at the opening 4 is greater than or equal to the liquid pressure in the first cavity 1 at the opening 4, the first cavity 1 and the second cavity are sealed, and the liquid sample cannot be transferred between the first cavity 1 and the second cavity;

(2) rotating the cover 7 to close the cover 7 down to the first chamber as shown in fig. 18-19, initially, the arcuate projections 73 contact the latch 23; continuing to rotate the cover 7, as shown in fig. 19, the arc-shaped projection 73 presses the plug 23 to apply a downward force to the plug 23, the plug 23 is pressed, the whole insert 21 moves downward, the sealing element 71 and the detection element move downward, the spring 72 is compressed, the sealing element 71 no longer seals the second chamber, the second chamber is communicated with the outside at this time, the pressure in the second chamber changes, specifically, when the pressure in the second chamber is reduced compared with the state where the second chamber is closed, when the gas pressure in the second chamber at the opening 4 is smaller than the liquid pressure in the first chamber 1 at the opening 4, the first chamber 1 and the second chamber are communicated with each other, and after the first chamber 1 and the second chamber are communicated with each other, the sample can enter the second chamber from the first chamber 1, and at the same time, the detection of the liquid sample can be performed;

continuing to rotate the cover 7, the arc-shaped projection 73 is rotated to another position, as shown in fig. 20, at this position, the arc-shaped projection 73 is no longer in contact with the latch 23, the latch 23 is no longer subjected to a downward acting force, at this time, the spring 72 will automatically rebound, the second support plate 213 will be subjected to an upward pushing force, both the insert 21 and the sealing element 71 can move upward in the second chamber, and finally, the latch 23 moves to the initial position and is no longer moved, at this time, the latch 23 is not in contact with the cover 7 or the latch 23 is in contact with the cover 7, but there is no interaction force between the two, the sealing element 71 moves to the uppermost end of the second chamber, and the sealing element 71 can seal the second chamber, so that the second chamber is isolated from the outside, and no gas or other substances are; the liquid sample in the first cavity 1 slowly does not flow into the second cavity any more, the gas pressure in the second cavity will change, specifically, compared with the case where the second cavity is communicated with the outside, the gas pressure in the second cavity will increase at this time, and when the gas pressure in the second cavity at the opening 4 is greater than or equal to the liquid pressure in the first cavity 1 at the opening 4, the first cavity 1 and the second cavity are closed, and the liquid sample cannot be transferred therebetween; when the cover body 7 is rotated to cover the cup body downwards, the partition element 80 continuously enters the fourth cavity to partition the first cavity 1 from the fourth cavity 10, so that the first cavity and the fourth cavity 10 can be completely partitioned;

(3) after the detection is finished, the reading can be carried out by observing the outer side surface of the second cavity, and the cup body is transparent, so that the detection result can be conveniently photographed and recorded; as shown in fig. 20-22, since the first chamber 1 and the fourth chamber 10 are completely separated by the separating element 80, the first cap 12 and the fourth chamber 10 can be removed, the first cap 12 is screwed on the fourth chamber 10, and the liquid in the fourth chamber 10 can be used for secondary confirmation detection.

Claims (10)

1. A detection cavity is characterized by comprising a second cavity for detection, wherein an insert is arranged in the second cavity and provided with a detection element placing area, and the insert can move in the second cavity so as to be contacted with or separated from a detected liquid; during the movement of the insert, the liquid sample can be quantitatively transferred.

2. The detection chamber according to claim 1, wherein the insert comprises a board, and the board is provided with at least one detection element placement area.

3. The detection chamber as claimed in claim 2, wherein the upper end of the insertion plate is connected with a first supporting plate, and the upper surface of the first supporting plate is connected with a bolt.

4. The detection chamber according to claim 2, wherein the lower end of the insert plate is connected with a second support plate; the bottom of the second supporting sheet is connected with a support column; the elastic element is sleeved on the periphery of the support.

5. A test chamber according to claim 3 further comprising a sealing member adapted to fit over the plug.

6. The detection chamber according to claim 1, wherein a bump is provided in the detection element placement region to fix the detection element; the lower part of the detection element placing area is provided with a flow guide channel, and the flow guide channel can guide the liquid sample to contact the detection element.

7. The detection chamber as claimed in claim 1, wherein the second chamber comprises a second chamber body and a bottom support, the second chamber body is detachably connected with the bottom support, the side surface of the second chamber body is provided with an opening capable of communicating with another chamber body, and the upper surface of the second chamber body is provided with a jack capable of allowing the pin to move therein.

8. A testing chamber according to claim 7 wherein the second chamber body is inclined; a first bulge space is arranged on one inclined side surface of the second cavity.

9. A testing chamber according to claim 7 wherein the mounting is inclined; a second protruding space is arranged on one inclined side surface of the bottom support.

10. A detection chamber according to claim 7 wherein the mounting has a fluid-containing space; the size of the bottom support is larger than that of the second cavity, and the bottom of the second cavity is wrapped by the bottom support; a sealing element is arranged between the bottom support and the second cavity.

Images