CN220027059U - Reagent tube and detection device - Google Patents

Abstract

The present utility model provides a reagent tube and a detection apparatus, the reagent tube comprising: the flexible tube body comprises a tube body part and a pressing part which are connected in sequence, the tube body part is provided with a reagent cavity with an outlet and used for containing liquid to be detected, the outlet is arranged at one end of the reagent cavity, and the pressing part is sealed at the other end of the reagent cavity; the support tube body is sleeved outside the flexible tube body and used for protecting the flexible tube body; the pressing frame comprises a pressing block and a pressing column connected with the pressing block, the pressing block is located outside the supporting tube body and used for reciprocating between an initial position and a quantitative position, an axial quantitative gap is formed between the pressing block located at the initial position and the supporting tube body, and the pressing block located at the quantitative position is abutted against the supporting tube body. According to the utility model, the flexible pipe body is protected by the support pipe body, the pressing block is limited, the leakage condition caused by mistakenly touching the pipe body can be avoided, and accurate quantitative pipetting can be rapidly performed by pressing the pressing block in place to a quantitative position at one time, so that the quantitative pipetting efficiency and accuracy are improved.

Description

Reagent tube and detection device

Technical Field

The utility model belongs to the technical field of detection instruments, and particularly relates to a reagent tube and detection equipment.

Background

Sample detection is widely applied to the fields of biology and chemistry, and various sample detection is involved in disease diagnosis. In the sample detection process, the liquid to be detected after the sample and the reagent are mixed is usually required to be stored and transferred.

At present, a simple injector is used as a reagent tube for storing and transferring the liquid to be detected, and when the sample liquid is used, the sample liquid can be added into the reagent liquid in the injector to be uniformly mixed by shaking, and the liquid to be detected is taken out for detection or amplification reaction is directly carried out; the nasal swab head can be put into the reagent liquid in the injector through collecting the nasal swab, the injector is rocked, the sample and the reagent liquid are uniformly mixed to be detected, the liquid to be detected is dripped into the detection indication box, and positive or negative is displayed through test paper or other modes.

Because the diagnosis needs to ensure the precision of sample detection, the accurate control of the transfer quantity of the liquid to be detected is generally required, but the structure of the existing reagent tube is simpler, and quantitative liquid transfer can only be carried out in a mode of manually judging the liquid transfer quantity, such as manually judging the force for extruding the reagent tube, when a large quantity of quantitative liquid transfer is carried out, the fatigue is manually judged, the error is larger, the liquid transfer efficiency is low, the precision is poor, and the subsequent sample detection result is inaccurate.

Disclosure of Invention

The utility model mainly aims to provide a reagent tube and detection equipment, and aims to solve the technical problems of low quantitative pipetting efficiency and poor accuracy of the reagent tube in the prior art.

In order to achieve the above object, the present utility model provides a reagent tube comprising: the flexible tube body comprises a tube body part and a pressing part which are connected in sequence, wherein the tube body part is provided with a reagent cavity with an outlet and used for containing liquid to be detected, the outlet is arranged at one end of the reagent cavity, and the pressing part is sealed at the other end of the reagent cavity; the support tube body is sleeved outside the flexible tube body and used for protecting the flexible tube body; the pressing frame comprises a pressing block and a pressing column connected with the pressing block, wherein the pressing block is located outside the supporting tube body and used for reciprocating between an initial position and a quantitative position, an axial quantitative gap is formed between the pressing block located at the initial position and the supporting tube body, the pressing block located at the quantitative position abuts against the end part of the supporting tube body, the pressing block moves from the initial position to the quantitative position, and the pressing block axially presses the pressing part to quantitatively squeeze liquid to be detected in the reagent cavity.

In the embodiment of the utility model, the flexible pipe body further comprises a connecting frame, the pressing part is connected between the connecting frame and the pipe body, the connecting frame is connected with the pressing column through a limiting structure, and the limiting structure is used for limiting the pressing column and the connecting frame along the axial direction of the pipe body.

In the embodiment of the utility model, the pressing column is provided with a hollow cavity into which the connecting frame extends, the limiting structure comprises a back-off and a limiting strip which are arranged on the cavity wall of the hollow cavity, and the back-off and the limiting strip enclose a limiting cavity which is used for limiting and matching with the connecting frame.

In the embodiment of the utility model, the connecting frame comprises a connecting plate and a connecting column, one end of the connecting column is connected with the pressing part, the other end of the connecting column is connected with the connecting plate, and the connecting column and the connecting plate enclose a clamping groove into which the back-off is stretched.

In the embodiment of the utility model, the cavity wall of the hollow cavity is provided with a plurality of deformation notches, the back-off and the deformation notches are all a plurality of, the back-off and the deformation notches are arranged at intervals along the circumferential direction of the hollow cavity, and a deformation notch is arranged between any adjacent back-off and limiting strips.

In the embodiment of the utility model, the reagent tube further comprises an elastic reset piece which is abutted between the pressing block and the supporting tube body, the elastic reset piece is compressed in the process of pressing the pressing block to the quantitative position, and the elastic reset piece is used for driving the pressing frame to reset to the initial position.

In the embodiment of the utility model, the pressing block is provided with a mounting groove for accommodating the elastic resetting piece, and the pressing column is connected with the bottom wall of the mounting groove.

In the embodiment of the utility model, the cross section size of the pressing part is gradually reduced from the pipe body part along the axial direction away from the pipe body part; and/or, a flow guide rib extending along the axial direction of the tube body part is arranged in the reagent cavity, and the flow guide rib is used for guiding the liquid to be detected in the direction close to the outlet.

In the embodiment of the utility model, the support pipe body is internally provided with a support rib for supporting the pipe body; and/or the pipe wall thickness of the pressing part is smaller than the pipe wall thickness of the pipe body part.

The utility model also proposes a detection device comprising a reagent tube as described above.

Through the technical scheme, the reagent tube provided by the embodiment of the utility model has the following beneficial effects:

the flexible pipe body can be sleeved outside the flexible pipe body, the pipe side wall of the flexible pipe body is supported on the pipe side wall of the flexible pipe body, the flexible pipe body is protected through the support pipe body, the support pipe body and the flexible pipe body are mutually matched to form a double-layer sleeve, the situation that liquid to be detected is extruded due to the fact that the flexible pipe body is touched by mistake can be avoided, the other end of the reagent cavity is sealed by the pressing part, the leakage of the liquid to be detected can be avoided, the pressing column of the pressing frame extends into the support pipe body, the pressing block is kept at the initial position outside the pressing frame, after the preparation of the liquid to be detected is completed, external force can be applied to the pressing block until the pressing block moves to the quantitative position, the pressing block abuts against the support pipe body, the pressing part is pressed by the pressing column in the process of the movement of the pressing block, the pressing part deforms towards the direction close to the outlet, and the liquid drop volume extruded each time reaches the quantitative requirement of the liquid to be detected due to the fact that the length of the quantitative gap is fixed. According to the utility model, the flexible pipe body is protected by the support pipe body, the pressing block is limited, the leakage condition caused by mistakenly touching the pipe body can be avoided, the pressing block is pressed in place to the quantitative position at one time, the accurate quantitative pipetting can be rapidly carried out under the condition of no manual observation, and the quantitative pipetting efficiency and accuracy are improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic diagram of a reagent tube according to one embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a reagent tube according to one embodiment of the present utility model;

FIG. 3 is a schematic view of a flexible tube body structure of a reagent tube according to an embodiment of the present utility model;

FIG. 4 is a schematic view showing the structure of a support tube of a reagent tube according to an embodiment of the present utility model;

FIG. 5 is a schematic view showing the structure of a pressing frame of a reagent tube according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a quantitative pipetting gun head of a reagent tube in accordance with an embodiment of the utility model;

FIG. 7 is a schematic cross-sectional view of a quantitative pipette tip of a reagent tube according to an embodiment of the present utility model.

Description of the reference numerals

Reference number designation number designation

100. Hollow cavity of reagent tube 321

1. Flexible pipe body 322 back-off

11. Limiting strip for pipe body 323

111. Reagent chamber 324 deformation notch

12. Quantitative gap of pressing part 4

13. Elastic resetting piece of connecting frame 5

131. Quantitative pipetting gun head with connecting plate 6

132. Connecting column 61 conveying flow passage

14. Hose rib 62 transition flow path

15. Lower baffle 63 quantitative liquid transfer channel

16. Upper baffle 64 main body cylinder

2. Support tube 641 main section

21. Connecting section of support rib 642

22. Quantitative pipetting section with supporting raised strips 643

3. Press rack 65 connecting cylinder

31. Press block 66 positioning groove

311. Mounting groove 7 sealing cover

32. Press post 200 sampling piece

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.

The reagent vessel according to the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, in an embodiment of the present utility model, a reagent vessel 100 includes: the flexible tube body 1 comprises a tube body part 11 and a pressing part 12 which are connected in sequence, wherein the tube body part 11 is provided with a reagent cavity 111 with an outlet for containing liquid to be detected, the outlet is arranged at one end of the reagent cavity 111, and the pressing part 12 is sealed at the other end of the reagent cavity 111; the support tube body 2 is sleeved outside the flexible tube body 1 and is used for protecting the flexible tube body 1; the pressing frame 3 comprises a pressing block 31 and a pressing column 32 connected with the pressing block 31, the pressing block 31 is located outside the supporting tube body 2 and is used for reciprocating between an initial position and a quantitative position, an axial quantitative gap 4 is formed between the pressing block 31 located at the initial position and the supporting tube body 2, the pressing block 31 located at the quantitative position is abutted against the supporting tube body 2, the pressing block 31 is used for pressing the pressing part 12 along the axial direction of the tube body 11 to deform the pressing part 12 towards a direction close to an outlet, and the pressing part 12 is axially extruded by the pressing block 31 from the initial position to the quantitative position to quantitatively extrude liquid to be detected in the reagent cavity 111.

It can be understood that the axial direction is the central axis direction of the flexible pipe body 1, and in this embodiment, the hardness of the supporting pipe body 2 is greater than that of the flexible pipe body 1, and the supporting pipe body 2 can protect the flexible pipe body 1, so as to avoid leakage of the liquid to be detected or excessive transfer of the liquid to be detected caused by incorrect contact of the flexible pipe body 1. The sample can be sampled by adopting a sampling piece 200 such as a cotton swab, a nose swab, a throat swab and the like, after the sampling of the sampling piece 200 is completed, the sampling piece 200 is placed into the reagent cavity 111 of the flexible pipe body 1, and the whole reagent pipe 100 is shaken, so that the sampling piece 200 and the reagent liquid in the reagent cavity 111 are fully mixed to obtain the liquid to be detected. An external force can be applied to the pressing frame 3 in a manual driving, hydraulic driving or mechanical driving mode, so that the liquid to be detected in the flexible pipe body 1 flows out from the outlet. The support tube body 2 can cover the flexible tube body 1 completely or partially, and the tube body 11 is in limit connection with the side wall of the support tube body 2, so that the tube body 11 can not move up and down relative to the support tube body 2.

The supporting tube body 2 in this embodiment can be first sleeved outside the flexible tube body 1, so that the tube side wall of the flexible tube body 1 is supported on the tube side wall of the supporting tube body 2, the flexible tube body 1 can be protected by the supporting tube body 2, the supporting tube body 2 and the flexible tube body 1 are mutually matched to form a double-layer sleeve, the situation that liquid to be detected is extruded due to false touch of the flexible tube body 1 can be avoided, the other end of the reagent cavity 111 is sealed by the pressing part 12, the situation that the liquid to be detected leaks can be avoided, the pressing column 32 of the pressing frame 3 can be stretched into the supporting tube body 2, the pressing block 31 is kept at the initial position outside the pressing frame 3, after the preparation of the liquid to be detected is completed, an external force can be applied to the pressing block 31 until the pressing block 31 moves to the quantitative position, the pressing block 31 abuts against the supporting tube body 2, the pressing column 32 presses the pressing part 12 in the process of the movement of the pressing block 31, the pressing part 12 deforms towards the direction close to the outlet, and the quantitative requirement of the liquid to be detected is met by fixing the fixed pressing stroke of the pressing block 31, and the quantitative requirement of the liquid to be accurately detected is met. In this embodiment, the flexible pipe body 1 is protected by the support pipe body 2 and the pressing block 31 is limited, so that the leakage caused by mistakenly touching the pipe body 11 can be avoided, the pressing block 31 is pressed in place to a quantitative position at one time, accurate quantitative pipetting can be rapidly performed under the condition of no need of artificial observation, and the quantitative pipetting efficiency and accuracy are improved.

As shown in fig. 2 and 3, the flexible pipe body 1 further includes a connecting frame 13, the pressing portion 12 is connected between the connecting frame 13 and the pipe body 11, the connecting frame 13 is connected with the pressing post 32 through a limiting structure, and the limiting structure is used for limiting the pressing post 32 and the connecting frame 13 along the axial direction of the pipe body 11. The connecting frame 13 and the pressing column 32 in the embodiment are connected through a limiting structure, the connecting frame 13 and the pressing column 32 are limited through the limiting structure, the condition that the pressing column 32 is deviated relative to the connecting frame 13 can be avoided, and the quantitative travel of the pressing block 31 along the up-down direction can be ensured. To ensure the convenience of use of the reagent vessel 100, the pressing post 32 can be rotated in a horizontal direction with respect to the connection frame 13.

In an embodiment, the pressing post 32 is provided with a hollow cavity 321 into which the connecting frame 13 extends, the limiting structure includes an inverted buckle 322 and a limiting strip 323 which are disposed on a cavity wall of the hollow cavity 321, and the inverted buckle 322 and the limiting strip 323 enclose a limiting cavity for limiting cooperation with the connecting frame 13. In this embodiment, the supporting tube body 2, the flexible tube body 1 and the pressing column 32 all extend along the up-down direction, the cross section size of the back-off 322 increases gradually from top to bottom, the limiting bar 323 is located below the back-off 322, the limiting cavity between the back-off 322 and the limiting bar 323 can be used for the connecting frame 13 to extend in, the back-off 322 extrudes the connecting frame 13 downwards, the limiting bar 323 extrudes the connecting frame 13 upwards, and the connecting frame 13 can be prevented from moving along the up-down direction.

As shown in fig. 3, the connecting frame 13 includes a connecting plate 131 and a connecting post 132, one end of the connecting post 132 is connected to the pressing portion 12, the other end is connected to the connecting plate 131, and the connecting post 132 and the connecting plate 131 enclose a clamping groove into which the back-off 322 extends. The connecting plate 131 is circular platy, and spliced pole 132 is hollow setting, and the pressure portion 12 is connected to spliced pole 132 upper end, and lower extreme and spliced pole 131 are connected, and spliced pole 132's radius is greater than spliced pole 132 to enclose into the draw-in groove that supplies back-off 322 to stretch into with spliced pole 132, make link 13 and press post 32 to form dual interlock structure, back-off 322 is located the tip of pressing post 32, for guaranteeing the intensity of pressing post 32, presses the strip and can extend to press the piece 31.

Specifically, as shown in fig. 5, the cavity wall of the hollow cavity 321 is provided with a plurality of deformation notches 324, the number of the back-off fasteners 322 and the deformation notches 324 is plural, the back-off fasteners 322 and the deformation notches 324 are arranged along the circumferential direction of the hollow cavity 321 at intervals, and a deformation notch 324 is arranged between any adjacent back-off fasteners 322 and limiting strips 323. The quantity of back-off 322 is two in this embodiment, and the quantity of deformation breach 324 is four, and the quantity of spacing 323 is two, and spacing 323, deformation breach 324 and back-off 322 are crisscross along the circumference of cavity 321 to set up in this embodiment, and in deformation breach 324 can make things convenient for connecting plate 131 to stretch into cavity 321, for pressing post 32 deformation and provide deformation space, back-off 322, spacing 323 dislocation set between two deformation breaches 324 can guarantee the spacing stability of connecting plate 131, avoids appearing connecting plate 131 and breaks away from the condition in the spacing chamber.

The reagent tube 100 further includes an elastic restoring member 5 abutting between the pressing block 31 and the support tube 2, the pressing block 31 compresses the elastic restoring member 5 in the process of pressing to the quantitative position, and the elastic restoring member 5 is used for driving the pressing frame 3 to restore to the initial position. The elastic restoring member 5 in this embodiment may be a spring, the elastic restoring member 5 may be sleeved outside the pressing column 32, so that one end of the elastic restoring member 5 abuts against the pressing block 31, then the elastic restoring member 5 and the pressing column 32 are pressed into the supporting tube 2 by the tool, so that the other end of the elastic restoring member 5 abuts against the supporting tube 2, the pressing block 31 compresses the elastic restoring member 5 in the process of moving from the initial position to the quantitative position, so that the elastic restoring member 5 stores energy, and under the condition of canceling the external force applied to the pressing block 31, the elastic restoring member 5 can drive the pressing frame 3 to restore to the initial position, so that the next pressing operation can be facilitated, and the operation convenience of the reagent tube 100 is improved.

As shown in fig. 1 and 2, the pressing block 31 is provided with a mounting groove 311 for accommodating the elastic restoring member 5, and the pressing post 32 is connected to the bottom wall of the mounting groove 311. The mounting groove 311 in this embodiment is disposed around the pressing post 32, so that enough mounting space can be provided for the elastic restoring member 5, and the pressing post 32 and the mounting groove 311 are coaxially disposed, so that the assembly of the pressing frame 3 can be facilitated.

In an embodiment, the cross-sectional dimension of the pressing portion 12 is tapered from the tube body 11 along the axial direction away from the tube body 11, and a guiding rib extending along the axial direction of the tube body 11 is disposed in the reagent chamber 111, and is used for guiding the liquid to be detected in the direction approaching the outlet. As shown in fig. 3, in this embodiment, the cross section of the pressing portion 12 is in a truncated cone shape, the radius of the pressing portion 12 gradually decreases from top to bottom, so that the pressing post 32 can conveniently press the pressing portion 12 along the up-down direction, so that the pressing portion 12 can be quickly deformed upward, thereby quickly squeezing the liquid to be detected in the reagent tube 100, and the guiding ribs in this embodiment can guide the liquid to be detected to the outlet, so that the situation that the liquid to be detected is hung on the inner cavity wall of the reagent cavity 111 can be avoided, and the smoothness of pipetting is improved.

In the embodiment of the utility model, the support pipe body 2 is internally provided with the support ribs 21 for supporting the pipe body 2 part 11; the wall thickness of the pressing portion 12 is smaller than the wall thickness of the tube body 11. The support ribs 21 in this embodiment are plural, and the plural support ribs 21 are disposed at intervals along the circumferential direction of the support tube body 2 and enclose a support cavity, and the support cavity is matched with the shape of the tube body 11, so that the tube body 2 11 can be supported in all directions, and the wall thickness of the pressing portion 12 is smaller than that of the tube body 11 for convenient pressing. The support tube body 2 may include a tube side plate and a bottom plate with a relief hole through which the pressing post 32 can pass.

The present utility model also proposes a detection device comprising a reagent vessel 100 as described above, the specific structure of the reagent vessel 100 being as described above with reference to the embodiments. The detection device adopts all the technical schemes of all the embodiments, so that the detection device has at least all the beneficial effects brought by the technical schemes of the embodiments, and the detection device is not described in detail herein. The detection device may include a pipetting pump and a detector.

As shown in fig. 2, an anti-drop structure is provided between the flexible tube body 1 and the support tube body 2, which can avoid the detachment of the double-layer sleeve, and ensure the use stability of the reagent tube 100, and the anti-drop structure includes a hose raised strip 14 and a support raised strip 22, wherein the hose raised strip 14 is disposed on the outer tube wall of the tube body 11, the support raised strip 22 is disposed on the inner wall of the support tube body 2, and the support raised strip 22 is disposed near the open position of the support tube body 2. In this embodiment, in order to ensure a smaller contact area between the hose raised line 14 and the supporting raised line 22, the outer surfaces of the hose raised line 14 and the supporting raised line 22 are arc surfaces, after the flexible pipe body 1 is assembled in place, the supporting raised line 22 is located between the hose raised line 14 and the outlet, and can resist the hose raised line 14 towards the direction close to the outlet, so that the situation that the supporting pipe body 2 excessively extrudes the flexible pipe body 1, resulting in a large amount of liquid in the flexible pipe body 1 in a short time can be avoided. The hose ribs 14 may be provided around the outside of the pipe body 11, and the number of the support ribs 22 is plural, and the plurality of support ribs 22 are provided at intervals along the circumferential direction of the support pipe body 2.

As shown in fig. 6 and 7, the reagent vessel 100 further includes a quantitative pipetting gun head 6 and a sealing cap 7; the quantitative pipetting gun head 6 is in sealing connection with the tube body 11, the quantitative pipetting gun head 6 is provided with a conveying flow channel 61, a transition flow channel 62 and a quantitative pipetting flow channel 63 with an opening which are communicated in sequence, the inner diameter of the transition flow channel 62 is smaller than that of the conveying flow channel 61 and larger than that of the transition flow channel 62, and the conveying flow channel 61 is communicated with the reagent cavity 111; the sealing cover 7 is detachably connected to the quantitative pipetting gun head 6 in a sealing way, and the sealing cover 7 is used for sealing the opening.

In one embodiment, to accurately control the liquid outlet amount of the liquid to be detected, the inner diameter of the opening is 0.4cm, so that the surface area of the liquid to be detected, which is in contact with the quantitative pipetting gun head 6, can be reduced during liquid dripping, the surface tension of the liquid can be reduced, and the liquid can be smoothly dripped. In other embodiments, the inner diameter of the opening may be set according to actual use requirements.

After the reagent tube 100 is adopted to prepare the liquid to be detected in the embodiment, the tube body 11, the quantitative pipette tip 6 and the sealing cover 7 can be sequentially and hermetically connected, meanwhile, the sealing cover 7 seals the opening of the quantitative pipette tip 6, the liquid to be detected can be prevented from leaking, the sealing cover 7 can be hermetically preserved, when the liquid to be detected needs to be quantitatively detected, the opening of the quantitative pipette tip 6 can be opened, external force is applied to the pressing block 31, the liquid to be detected in the reagent cavity 111 sequentially passes through the outlet of the reagent cavity 111, the conveying runner 61, the transition runner 62 and the quantitative pipette runner 63, finally, the inner diameters of the conveying runner 61, the transition runner 62 and the quantitative pipette runner 63 sequentially decrease, the inner diameter of the conveying runner 61 is the largest, the liquid to be detected in the reagent cavity 111 can conveniently and rapidly smoothly enter the conveying runner 61, the inner diameter of the transition runner 62 is between the inner diameter of the conveying runner 61 and the inner diameter of the quantitative pipette runner 63, the inner diameter can buffer the liquid to be detected, and the stop-off flow of the quantitative pipette runner 63 can be prevented from flowing through the cut-off flow channel 63, and the accurate drop flow can be prevented from flowing through the cut-off flow channel. In this embodiment, the sealing connection between the tube body 11, the quantitative pipetting gun head 6 and the sealing cover 7 can improve the tightness of the reagent tube 100, avoid the pollution of the liquid to be detected, and ensure the accuracy of liquid outlet control while smoothly discharging the liquid through the three-stage channels of the conveying channel 61, the transition channel 62 and the quantitative pipetting channel 63 of the quantitative pipetting gun head 6, thereby improving the quantitative performance of the reagent tube 100.

In one embodiment, the quantitative pipetting gun head 6 comprises a main body cylinder 64 and a connecting cylinder 65, and the conveying flow channel 61, the transition flow channel 62 and the quantitative pipetting flow channel 63 are all arranged on the main body cylinder 64; the connecting tube 65 is disposed around the main body tube 64 and forms a positioning groove 66 with the main body tube 64 for the tube body 11 to extend into, and the inner tube wall of the connecting tube 65 is in sealing connection with the tube body 11. In this embodiment, the inner diameter of the connecting tube 65 is larger than that of the main body tube 64, the quantitative pipette tip 6 can be manufactured in an integrally formed manner, the connecting tube 65 and the main body tube 64 are connected by a slope, the quantitative pipette tip 6 can be conveniently demolded in the manufacturing process, the tube body 11 can extend into the positioning groove 66, the main body tube 64 can partially extend into the tube body 11, and the connection convenience between the tube body 11 and the quantitative pipette tip 6 is improved.

Specifically, the main body cylinder 64 includes a main body section 641, a connecting section 642 and a quantitative pipetting section 643 which are sequentially connected and gradually reduced in cross-sectional size, and the conveying flow channel 61, the transition flow channel 62 and the quantitative pipetting flow channel 63 are respectively correspondingly provided with the main body section 641, the connecting section 642 and the quantitative pipetting section 643, and the connecting section 642 is used for extending into the sealing cover 7 and being in sealing connection with the sealing cover 7. In this embodiment, the cross-sectional dimensions of the main body 641, the connecting section 642 and the quantitative pipetting section 643 are gradually reduced, and the main body section 641, the connecting section 642 and the quantitative pipetting channel 63 correspond to the conveying channel 61, the transition channel 62 and the quantitative pipetting channel 63 respectively, so that the manufacturing materials of the quantitative pipetting gun head 6 can be reduced, and the situation that the wall thickness of the quantitative pipetting gun head 6 is too thick is avoided.

In one embodiment, the outer wall of the connecting section 642 is provided with external threads for threaded connection with the sealing cap 7, and the flow channel wall thickness of the connecting section 642 is greater than the flow channel wall thickness of the main body section 641 and the flow channel wall thickness of the pipetting section 643. The connecting section 642 in this embodiment is in threaded sealing connection with the sealing cover 7, and can be connected with the connecting section 642 by rotating the sealing cover 7, and a sealing block for sealing the opening is arranged in the sealing cover 7, and then the sealing cover 7 is rotated, so that the sealing block can move along with the sealing cover 7 under the condition that the sealing cover 7 is separated from the quantitative pipetting gun head 6, and the opening is opened.

In another embodiment, the outer cylindrical wall of the connecting cylinder 65 is provided with an internal thread for threaded connection with the pipe body 11, and the thickness of the cylindrical wall of the connecting cylinder 65 is greater than that of the main body cylinder 64. The connecting cylinder 65 and the pipe body 11 in this embodiment are connected by threads, and the thickness of the wall of the connecting cylinder 65 is larger, so that the connection stability between the connecting cylinder 65 and the pipe body 11 can be ensured, and the thickness of the flow channel of the connecting section 642 is larger, so that the connection stability between the connecting section 642 and the sealing cover 7 can be ensured.

As shown in fig. 2 and 3, an outer ring of the outer tube wall of the tube body 11 is provided with an upper baffle 16 and a lower baffle 15, the upper baffle 16 and the lower baffle 15 are arranged at intervals along the up-down direction, the lower baffle 15 can be abutted against the limiting support tube body 2, and the upper baffle 16 can be abutted against the limiting quantitative pipette tip 6. The upper baffle 16 is disposed adjacent to and at the lower end of the external thread of the pipe body 11. The hose rib 14 is located above the lower baffle 15.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A reagent vessel, characterized in that the reagent vessel (100) comprises:

the flexible tube body (1) comprises a tube body part (11) and a pressing part (12) which are sequentially connected, wherein the tube body part (11) is provided with a reagent cavity (111) with an outlet and used for containing liquid to be detected, the outlet is arranged at one end of the reagent cavity (111), and the pressing part (12) is sealed at the other end of the reagent cavity (111);

the support tube body (2) is sleeved outside the flexible tube body (1) and is used for protecting the flexible tube body (1);

the pressing frame (3) comprises a pressing block (31) and a pressing column (32) connected with the pressing block (31), the pressing block (31) is positioned outside the supporting tube body (2) and used for reciprocating between an initial position and a quantitative position, an axial quantitative gap (4) is formed between the pressing block (31) positioned at the initial position and the supporting tube body (2), and the pressing block (31) positioned at the quantitative position is abutted against the end part of the supporting tube body (2);

the pressing block (31) axially presses the pressing part (12) from an initial position to a quantitative position, so that the liquid to be detected in the reagent cavity (111) is quantitatively extruded.

2. The reagent tube according to claim 1, wherein the flexible tube body (1) further comprises a connecting frame (13), the pressing portion (12) is connected between the connecting frame (13) and the tube body portion (11), the connecting frame (13) is connected with the pressing post (32) through a limiting structure, and the limiting structure is used for limiting the pressing post (32) and the connecting frame (13) along the axial direction of the tube body portion (11).

3. The reagent tube according to claim 2, wherein the pressing column (32) is provided with a hollow cavity (321) into which the connecting frame (13) extends, and the limiting structure comprises a back-off (322) and a limiting strip (323) which are arranged on the cavity wall of the hollow cavity (321), and the back-off (322) and the limiting strip (323) enclose a limiting cavity for limiting cooperation with the connecting frame (13).

4. A reagent vessel according to claim 3, wherein the connecting frame (13) comprises a connecting plate (131) and a connecting column (132), one end of the connecting column (132) is connected with the pressing part (12), the other end is connected with the connecting plate (131), and the connecting column (132) and the connecting plate (131) enclose a clamping groove into which the back-off (322) extends.

5. A reagent tube according to claim 3, wherein the cavity wall of the hollow cavity (321) is provided with a plurality of deformation notches (324), the back-off (322) and the deformation notches (324) are all a plurality of, the back-off (322) and the deformation notches (324) are arranged at intervals along the circumferential direction of the hollow cavity (321), and a deformation notch (324) is arranged between any adjacent back-off (322) and the limiting strip (323).

6. The reagent tube according to any one of claims 1 to 5, wherein the reagent tube (100) further comprises an elastic restoring member (5) abutting between the pressing block (31) and the support tube body (2), the pressing block (31) compresses the elastic restoring member (5) in the process of pressing to the dosing position, and the elastic restoring member (5) is used for driving the pressing frame (3) to restore to an initial position.

7. The reagent tube according to claim 6, wherein the pressing block (31) is provided with a mounting groove (311) for accommodating the elastic restoring member (5), and the pressing post (32) is connected to a bottom wall of the mounting groove (311).

8. A reagent vessel according to any one of claims 1 to 5, wherein the cross-sectional dimension of the pressing part (12) tapers from the vessel body (11) in an axial direction away from the vessel body (11);

the reagent cavity (111) is internally provided with a flow guide rib extending along the axial direction of the pipe body (11), and the flow guide rib is used for guiding liquid to be detected in the direction close to the outlet.

9. A reagent vessel according to any one of claims 1 to 5, wherein the support tube body (2) is provided with support ribs (21) therein for supporting the tube body (11);

and/or the number of the groups of groups,

the wall thickness of the pressing part (12) is smaller than that of the pipe body part (11).

10. A detection device, characterized in that it comprises a reagent tube (100) according to any one of claims 1 to 9.