CN221191487U

CN221191487U - PCR test tube switch cover device

Info

Publication number: CN221191487U
Application number: CN202323309656.5U
Authority: CN
Inventors: 刘志刚; 余海; 陈丽; 贺贤汉
Original assignee: Hangzhou Bori Technology Co ltd
Current assignee: Hangzhou Bori Technology Co ltd
Priority date: 2023-12-05
Filing date: 2023-12-05
Publication date: 2024-06-21
Anticipated expiration: 2033-12-05

Abstract

The utility model provides a PCR test tube cover opening and closing device, and relates to the technical field of molecular biology. The PCR test tube switch cover device includes: a base; the carrier is arranged on the base in a sliding manner and is used for carrying the PCR test tube; the driving component is arranged on the base, and the driving end of the driving component is connected with the carrier; and the switch cover assembly is arranged on the base and positioned on the sliding path of the carrier, and can separate the tube cover from the tube body of the PCR test tube when the PCR test tube slides along with the carrier in the forward direction and cover the tube cover with the tube body when the PCR test tube slides along with the carrier in the reverse direction. Compared with manual opening or closing of the tube cover, the PCR tube cover opening and closing device is more labor-saving, can stably open the cover, and is not easy to splash liquid in the tube.

Description

PCR test tube switch cover device

Technical Field

The utility model relates to the technical field of molecular biology, in particular to a PCR test tube cover opening and closing device.

Background

The real-time fluorescent quantitative polymerase chain reaction (Polymerase Chain Reaction, PCR) technology can realize quantitative analysis of the DNA template, and has important significance for molecular biology research, medical research and the like.

In order to prevent cross-contamination by sample evaporation during the experiment, the PCR tube needs to be covered with a cap for reaction. Thus, during use, the experimenter needs to open or close the tube cap. In order to ensure the sealing effect, the matched pipe cover and the pipe body are relatively large, the pipe cover is laborious to open or close manually, and the risk of liquid in the pipe splashing during the cover opening is also caused.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model aims to provide a PCR test tube cover opening and closing device.

The utility model provides the following technical scheme:

A PCR tube switch cover apparatus comprising:

A base;

The carrier is arranged on the base in a sliding manner and is used for carrying the PCR test tube;

The driving assembly is arranged on the base, and the driving end of the driving assembly is connected with the carrier; and

The switch cover assembly is arranged on the base and positioned on the sliding path of the carrier, and can enable the tube cover of the PCR test tube to be separated from the tube body when the PCR test tube slides along with the carrier in the forward direction, and enable the tube cover to be covered with the tube body when the PCR test tube slides along with the carrier in the reverse direction.

As a further alternative scheme of the PCR test tube cover opening and closing device, a first chute and a second chute are arranged on the cover opening and closing assembly, the first chute is used for being in sliding fit with at least one side of the tube body, and the second chute is used for being in sliding fit with at least one side of the tube cover;

The first sliding groove is parallel to the sliding direction of the carrier, the second sliding groove is obliquely arranged relative to the first sliding groove, and a wedge-shaped part is formed between the second sliding groove and the first sliding groove.

As a further alternative scheme of the PCR tube cap opening and closing device, a third chute is further provided on the cap opening and closing assembly, the third chute is communicated with one end of the second chute away from the first chute, and the third chute is used for storing the tube cap.

As a further alternative to the PCR tube cover opening and closing device, the carrier has a carrying area for carrying the PCR tube, a pushing member is disposed on the carrier, the pushing member and the carrying area are arranged along a sliding direction of the carrier, and the pushing member is used for pushing the tube cover into the second chute when the carrier slides reversely.

As a further alternative scheme of the PCR tube cover opening and closing device, the carrier is provided with a plurality of bearing areas and a plurality of pushing pieces correspondingly, and the cover opening and closing assembly is provided with a plurality of groups of first sliding grooves, second sliding grooves and third sliding grooves correspondingly.

As a further alternative scheme for the PCR test tube cover opening and closing device, at least eight grooves which can be used for embedding the tube body are formed in the bearing area, at least eight grooves are arranged along the sliding direction of the carrier, and the PCR test tube is a PCR eight-connected tube.

As a further alternative scheme of the PCR tube cap opening and closing device, the cap opening and closing assembly includes a cap opening and closing plate, the cap opening and closing plate is located on a side of the carrier opposite to the base, a position avoidance groove is formed on a side of the cap opening and closing plate opposite to the base, and the first chute and the second chute are disposed on a side wall of the position avoidance groove.

As a further alternative to the PCR tube cover opening and closing device, the first chute and the second chute are provided on both sidewalls of the avoidance slot.

As a further alternative scheme for the PCR test tube cover opening and closing device, the driving assembly comprises a screw rod, a screw seat and a rotary driving piece, wherein the screw rod is parallel to the sliding direction of the carrier and is rotatably arranged on the base, the screw rod is sleeved with the screw seat and is connected with the carrier, the rotary driving piece is arranged on the base, and the driving end of the rotary driving piece is connected with the screw rod.

As a further alternative scheme for the PCR test tube cover opening and closing device, a sliding rail is arranged on the base, the sliding rail is parallel to the sliding direction of the carrier, a sliding block is arranged on the sliding rail in a sliding manner, and the sliding block is connected with the carrier.

The embodiment of the utility model has the following beneficial effects:

When the PCR test tube cover opening and closing device is used, an experimenter places the PCR test tube on the carrier and then controls the driving assembly to drive the carrier to slide forward. When the carrier passes through the switch cover assembly, the switch cover assembly enables the tube cover of the PCR test tube to be separated from the tube body, namely, the tube cover is opened, so that the operation of dripping reagent and the like by an experimenter is facilitated. The experimenter then controls the drive assembly to drive the carriage in a reverse direction. When the carrier passes through the switch cover assembly again, the switch cover assembly enables the pipe cover to be covered with the pipe body, namely, the pipe cover is closed, so that cross contamination caused by sample evaporation in the experimental process is prevented. Compared with manual opening or closing of the tube cover, the PCR tube cover opening and closing device is more labor-saving, can stably open the cover, and is not easy to splash liquid in the tube.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic diagram of the overall structure of a PCR tube cover opening and closing device according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing a state in which a tube cover and a tube body of a PCR test tube are covered;

FIG. 3 is a schematic view showing a state in which a cap of a PCR test tube is separated from a tube body;

Fig. 4 is a schematic diagram showing a state of the PCR tube cover opening and closing device after the cover is opened according to the embodiment of the present utility model.

Description of main reference numerals:

100-base; 110-mounting plates; 111-slide rails; 112-a slider; 120-supporting legs; 200-carriers; 210-a pusher; 300-a drive assembly; 310-screw rod; 320-rotating a driving member; 400-a switch cover assembly; 410-a switch cover plate; 411-a clearance groove; 412-a first chute; 413-a second runner; 414-wedge; 415-third runner; 420-stand columns; 500-PCR test tube; 510-tube cap; 511-a first tie plate; 520-pipe body; 521-second link plate.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

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; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. 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.

Furthermore, 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 implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Examples

Referring to fig. 1, the present embodiment provides a PCR tube cover opening/closing device, which includes a base 100, a carrier 200, a driving assembly 300 and a cover opening/closing assembly 400, wherein the carrier 200, the driving assembly 300 and the cover opening/closing assembly 400 are disposed on the base 100.

Wherein the carrier 200 is slidably disposed on the base 100 and is used to carry the PCR tube 500.

The driving end of the driving assembly 300 is connected to the carrier 200 to drive the carrier 200 to slide back and forth on the base 100.

Accordingly, the switch cover assembly 400 is located on the sliding path of the carrier 200. The cap assembly 400 is capable of separating a cap 510 (see fig. 3) of the PCR tube 500 from a tube body 520 (see fig. 3) when the PCR tube 500 slides forward with the carrier 200. The cap assembly 400 enables the cap 510 to be capped with the tube body 520 when the PCR tube 500 slides in the reverse direction with the carrier 200.

With the above-described PCR tube cap opening and closing apparatus, an experimenter places the PCR tube 500 on the carrier 200 and then controls the driving assembly 300 to drive the carrier 200 to slide forward. When the carrier 200 passes through the switch cover assembly 400, the switch cover assembly 400 enables the tube cover 510 of the PCR test tube 500 to be separated from the tube body 520, i.e. the tube cover 510 is opened, so that the experiment personnel can conveniently perform operations such as reagent dripping.

Subsequently, the experimenter controls the drive assembly 300 to drive the carriage 200 to slide in the reverse direction. When the carrier 200 passes through the switch cover assembly 400 again, the switch cover assembly 400 covers the tube cover 510 and the tube body 520, i.e., closes the tube cover 510, so as to prevent cross contamination caused by sample evaporation during the experiment.

Compared with the manual opening or closing of the tube cover 510, the PCR tube cover opening and closing device is more labor-saving, can stably cover the cover, and is not easy to splash liquid in the tube.

Specifically, the base 100 is composed of a horizontally disposed mounting plate 110 and four vertically disposed legs 120. The four supporting legs 120 are respectively positioned at the four top corners of the mounting plate 110, and the top ends of the supporting legs 120 are fixedly connected with the mounting plate 110. The carrier 200, the drive assembly 300, and the switch cover assembly 400 are all disposed on the mounting plate 110.

In some embodiments, a horizontal sliding rail 111 is disposed on the mounting plate 110, and the sliding rail 111 is parallel to the sliding direction of the carrier 200. The slide rail 111 is slidably provided with a slider 112, and the slider 112 is connected to the carriage 200.

When in use, the carrier 200 is arranged on the mounting plate 110 in a sliding way through the sliding blocks 112 and the sliding rails 111, the sliding resistance is small, the sliding process is stable, the PCR test tube 500 carried by the carrier 200 is kept stable, and liquid in the tube is better prevented from splashing.

Optionally, the sliding rails 111 are disposed in pairs and respectively located below two sides of the carrier 200. Two sliding blocks 112 are arranged on each sliding rail 111, and the two sliding blocks 112 are respectively connected to two ends of the bottom surface of the carrier 200 along the sliding direction. At this time, the four corners of the bottom surface of the carrier 200 are connected with the sliders 112, which is more stable during the sliding process.

In some embodiments, the carrier 200 has a carrying area for carrying the PCR tube 500, and a groove is provided in the carrying area into which the tube body 520 is inserted. The experimenter inserts the tube body 520 of the PCR tube 500 into the groove, so that the PCR tube 500 can be stably placed on the carrier 200.

Referring to fig. 2 and 3, in some embodiments of the present disclosure, the PCR tube 500 carried by the carrier 200 is a PCR eight-tube, which has eight tube bodies 520 and eight tube covers 510, and the eight tube bodies 520 are arranged in sequence. Each tube cover 510 corresponds to one tube body 520 and covers the corresponding tube body 520.

In addition, each of the pipe bodies 520 is provided with a first coupling plate 511, and eight first coupling plates 511 are integrally formed. Similarly, each tube cover 510 is provided with a second coupling plate 521, and eight second coupling plates 521 are integrally formed. When the pipe cover 510 is closed with the pipe body 520, the second coupling plate 521 is fitted or clearance fitted with the first coupling plate 511.

Accordingly, at least eight grooves are provided in the bearing region, and the at least eight grooves are arranged along the sliding direction of the carrier 200.

When the carrier 200 passes through the switch cover assembly 400, the switch cover assembly 400 separates or closes the second coupling plate 521 from or to the first coupling plate 511, and thus separates or covers the eight tube covers 510 from or to the corresponding tube bodies 520.

In other embodiments of the present embodiment, the PCR tube 500 carried by the carrier 200 may be a single PCR tube, and consists of only one tube body 520 and one tube cover 510.

Further, the carrier 200 has a plurality of carrying areas thereon, which can carry a plurality of PCR tubes 500. The plurality of bearing areas are arranged along the horizontal direction, and the arrangement direction of the plurality of bearing areas is perpendicular to the sliding direction of the carrier 200.

Accordingly, when the carrier 200 passes through the switch cover assembly 400, the switch cover assembly 400 can simultaneously open or close the tube covers 510 of the respective PCR test tubes 500.

Referring again to fig. 1, in some embodiments, the drive assembly 300 is comprised of a screw 310, a nut seat (not shown), and a rotary drive 320.

Wherein the screw 310 is parallel to the sliding direction of the carriage 200 and is rotatably provided on the mounting plate 110. In addition, the screw 310 is located between the two slide rails 111.

The screw seat is sleeved on the screw rod 310 and is fixedly connected with the middle part of the bottom surface of the carrier 200.

The rotary driving member 320 is fixedly disposed on the mounting plate 110, and the driving end of the rotary driving member 320 is connected with the screw rod 310 as the driving end of the entire driving assembly 300.

When in use, the driving end of the rotary driving piece 320 drives the screw rod 310 to rotate, so as to drive the screw seat to move along the screw rod 310, and further drive the carrier 200 to slide back and forth.

Alternatively, the rotary driving member 320 employs a driving motor, and a shaft of the driving motor is connected to the screw 310 through a coupling.

In other embodiments, the drive assembly 300 may also employ a cylinder, ram, or the like.

In some embodiments, the switch cover assembly 400 is comprised of a switch cover plate 410 and a post 420.

The switch cover 410 is disposed horizontally and is located on a side of the carrier 200 facing away from the base 100. The upright post 420 is vertically arranged, the top end of the upright post 420 is fixedly connected with the switch cover plate 410, and the bottom end of the upright post 420 is fixedly connected with the mounting plate 110.

Referring to fig. 2 and 3, in addition, a side of the switch cover plate 410 facing the base 100 is provided with a avoidance slot 411, and a side wall of the avoidance slot 411 is provided with a first sliding slot 412 and a second sliding slot 413.

In use, the carriage 200 is driven by the drive assembly 300 to pass under the switch cover 410, and the PCR tube 500 placed on the carriage 200 passes through the clearance slot 411. In this process, the first coupling plate 511 of at least one side of the pipe body 520 is slidably engaged with the first sliding groove 412, and the second coupling plate 521 of at least one side of the pipe cover 510 is slidably engaged with the second sliding groove 413.

Wherein the first sliding groove 412 is parallel to the sliding direction of the carrier 200. The second chute 413 is located above the first chute 412 and is disposed obliquely with respect to the first chute 412. At this time, a wedge portion 414 is formed between the second chute 413 and the first chute 412.

As the carrier 200 slides forward and passes under the switch cover plate 410, the PCR tube 500 moves with the carrier 200 and first contacts the tip of the wedge 414. At this time, the tip of the wedge 414 is caught between the first and second coupling plates 511 and 521.

As the movement of the PCR tube 500 continues, the first and second coupling plates 511 and 521 are gradually separated under the guide of the wedge 414. The pipe body 520 and the first coupling plate 511 on the pipe body 520 continue to slide horizontally along the first sliding groove 412, and the pipe cover 510 and the second coupling plate 521 on the pipe cover 510 slide obliquely upward along the second sliding groove 413. Thereby, the tube cap 510 is separated from the tube body 520.

Conversely, when the carriage 200 slides in the reverse direction and passes under the switch cover 410, the PCR tube 500 moves with the carriage 200. In this process, the pipe body 520 and the first coupling plate 511 on the pipe body 520 are horizontally slid along the first sliding groove 412, and the pipe cover 510 and the second coupling plate 521 on the pipe cover 510 are obliquely slid down along the second sliding groove 413. Finally, the tube cap 510 is again capped on the tube body 520.

Further, a third sliding groove 415 is further disposed on a side wall of the avoidance slot 411, and the third sliding groove 415 is communicated with one end of the second sliding groove 413 away from the first sliding groove 412.

Referring to fig. 4, when the pipe cover 510 is separated from the pipe body 520, the second coupling plate 521 slides obliquely upward along the second sliding groove 413 and slides into the third sliding groove 415. At this time, the third runner 415 can function to store the tube cap 510 without requiring an experimenter to separately place the separated tube cap 510.

In addition, when the carrier 200 slides reversely and passes under the switch cover plate 410, the second connecting plate 521 can slide into the second sliding groove 413 smoothly only by keeping the tube cover 510 and the tube body 520 moving synchronously, so that the tube cover 510 covers the tube body 520 again.

Optionally, the third runner 415 is also parallel to the sliding direction of the carrier 200.

In some embodiments, the pushing member 210 is disposed on the carrier 200, and the pushing member 210 and the bearing area are aligned along a sliding direction of the carrier 200.

When the carrier 200 slides reversely and passes under the switch cover plate 410, the pushing member 210 abuts against the second connecting plate 521 on the pipe cover 510 and pushes the second connecting plate 521 into the second sliding groove 413, so that the pipe cover 510 and the pipe body 520 can keep moving synchronously, and the method is simple and convenient.

In other embodiments, a driving structure may be further disposed on the mounting plate 110 or the switch cover plate 410, and the second connecting plate 521 is pushed into the second sliding groove 413 according to the real-time position of the pipe shaft 520 until one of the pipe covers 510 and the corresponding pipe shaft 520 are covered together. Then, the remaining tube caps 510 and the tube body 520 are kept to move synchronously under the traction of the tube caps 510 and the second coupling plate 521, and are individually capped.

Optionally, a first sliding groove 412, a second sliding groove 413 and a third sliding groove 415 are provided on both side walls of the avoidance slot 411.

At this time, the first connecting plates 511 at both sides of the pipe body 520 are slidably engaged with the first sliding groove 412, and the second connecting plates 521 at both sides of the pipe cover 510 are slidably engaged with the second sliding groove 413 and the third sliding groove 415, so that the pipe cover 510 can be separated from or covered with the pipe body 520 more stably.

It should be noted that, when the carrier 200 has a plurality of bearing areas, the pushing members 210 are correspondingly provided in plurality, and each pushing member 210 and the corresponding bearing area are aligned along the sliding direction of the carrier 200.

In addition, the switch cover plate 410 is correspondingly provided with a plurality of avoidance slots 411, and the side wall of each avoidance slot 411 is provided with a first chute 412, a second chute 413 and a third chute 415.

In other embodiments, the switch cover assembly 400 may also be comprised of a plate that is disposed vertically and suspended above the carrier 200. At this time, the first runner 412, the second runner 413, and the third runner 415 are provided at the side of the plate. When the carrier 200 passes through the opening and closing cover assembly 400, the PCR tube 500 passes between the adjacent two plates, and the tube cover 510 of the PCR tube 500 is separated from or covered with the tube body 520.

In summary, when using the above-mentioned PCR tube cap opening and closing apparatus, an experimenter places the PCR tube 500 on the carrier 200, and then controls the driving assembly 300 to drive the carrier 200 to slide forward and pass through the cap opening and closing assembly 400, so that the tube cap 510 of the PCR tube 500 is separated from the tube body 520. Or the experimenter controls the driving assembly 300 to drive the carrier 200 to reversely slide and pass through the switch cover assembly 400, so that the tube cover 510 and the tube body 520 of the PCR test tube 500 can be covered. Compared with the manual opening or closing of the tube cover 510, the PCR tube cover opening and closing device is more labor-saving, can stably cover the cover, and is not easy to splash liquid in the tube.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. A PCR tube switch cover apparatus, comprising:

A base;

2. The PCR tube switch cover apparatus of claim 1, wherein the switch cover assembly is provided with a first chute for sliding engagement with at least one side of the tube body and a second chute for sliding engagement with at least one side of the tube cover;

3. The PCR tube switch cover apparatus of claim 2, wherein a third chute is further provided on the switch cover assembly, the third chute being in communication with an end of the second chute remote from the first chute, the third chute being for storing the tube cover.

4. A PCR tube switch cover apparatus as claimed in claim 3, wherein the carrier has a carrying area for carrying the PCR tube, the carrier being provided with a pusher, the pusher and the carrying area being aligned in a sliding direction of the carrier, the pusher being adapted to push the tube cover into the second chute when the carrier is slid in a reverse direction.

5. The PCR tube switch cover apparatus of claim 4, wherein the carrier has a plurality of bearing areas thereon and is correspondingly provided with a plurality of pushing members, and the switch cover assembly is correspondingly provided with a plurality of sets of the first chute, the second chute, and the third chute.

6. The cover opening and closing device for PCR test tubes according to claim 4, wherein at least eight grooves for embedding the tube body are arranged in the bearing area, at least eight grooves are arranged along the sliding direction of the carrier, and the PCR test tubes are PCR eight-connected tubes.

7. The PCR tube switch cover apparatus of claim 2, wherein the switch cover assembly includes a switch cover plate located on a side of the carrier facing away from the base, a side of the switch cover plate facing toward the base is provided with a clearance groove, and the first chute and the second chute are disposed on sidewalls of the clearance groove.

8. The PCR tube switch cover apparatus of claim 7, wherein the first chute and the second chute are provided on both sidewalls of the clearance groove.

9. The PCR tube switch cover apparatus of claim 1, wherein the drive assembly includes a screw, a nut seat, and a rotary drive member, the screw is parallel to a sliding direction of the carrier, and rotatably disposed in the base, the nut seat is sleeved on the screw and connected to the carrier, the rotary drive member is disposed in the base, and a drive end of the rotary drive member is connected to the screw.

10. The PCR tube switch cover device as claimed in claim 1, wherein a slide rail is provided on the base, the slide rail is parallel to the sliding direction of the carrier, a slide block is slidably provided on the slide rail, and the slide block is connected with the carrier.