Cover opening and closing device

Abstract

The utility model discloses a cover opening and closing device which comprises a lifting supporting mechanism and a cover opening and closing mechanism. A cover opening and closing mechanism is arranged on the lifting supporting mechanism, the lifting supporting mechanism can drive the cover opening and closing mechanism to ascend and descend, and the cover opening and closing mechanism can open or close a cover of the sample tube. The utility model has the beneficial effects that the support lifting component drives the support component to do lifting motion and is matched with the cover opening and closing component to open and close a cover of a sample tube, and the lifting limiting group does lifting motion to prop against a sample tube cap to achieve cover removal; covers can be opened and closed on a large scale at the same time, the corresponding number of cover opening and closing assemblies can be arranged on the supporting base piece according to needs so as to adapt to sample boxes with different numbers and different positions, and the covers can be opened and closed collectively. Screwdriver heads of different specifications can be replaced to adapt to sample tubes of different specifications; an elastic piece is arranged in the coupler, so that a floating space is reserved for contact between the bit and the sample tube, and the bit is prevented from impacting and damaging the sample tube.

Description

Technical Field

[0001] This utility model relates to the field of sample storage technology, and in particular to a cover opening and closing device. Background Technology

[0002] In the field of biological samples, sample tubes are the most common sample containers. When using samples in experimental research, the samples need to be taken out of the sample tubes. Since the samples are often in a low-temperature state, machines are used to open the caps instead of manually. Existing equipment has limitations on the number of caps that can be opened at one time, and cannot achieve batch opening or flexible number opening. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above or prior art, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a cap opening and closing device that can simultaneously open or close multiple groups of sample tubes, greatly improving work efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cover opening and closing device, which includes a lifting support mechanism and a cover opening and closing mechanism; the cover opening and closing mechanism is provided on the lifting support mechanism, the lifting support mechanism can drive the cover opening and closing mechanism to lift and lower, and the cover opening and closing mechanism can open or close the sample tube.

[0007] As a preferred embodiment of the switch cover device of this utility model, the switch cover mechanism includes a switch cover assembly and a lifting limit group; multiple sets of switch cover assemblies are provided on the lifting support mechanism, the lifting limit group can be lifted and lowered on the lifting support mechanism, the multiple sets of switch cover assemblies can open or close multiple sets of sample tubes at the same time, and the lifting limit group can restrict the rotation of multiple sets of sample tubes.

[0008] In a preferred embodiment of the switch cover device of this utility model, the switch cover assembly includes a rotary drive, a connector, and a bit. The rotary drive is connected to the bit through the connector. The rotary drive drives the bit to rotate through the connector. The bit can rotate the cap of the sample tube.

[0009] As an optimal scheme of the switch cover device, the connecting piece comprises a shaft coupling, a bearing and an elastic piece; the bearing is arranged on the outer side of the shaft coupling, the elastic piece is arranged in the shaft coupling, and the bit can buffer the sample tube through the elastic piece.

[0010] As an optimal scheme of the switch cover device, the lifting limiting group comprises a cover removing driving piece and a cover removing limiting piece; the cover removing driving piece can drive the cover removing limiting piece to lift and lower, and the cover removing limiting piece can limit the tube body or the tube cap of the sample tube.

[0011] As an optimal scheme of the switch cover device, the cover removing limiting piece comprises a cover removing plate and a sensor; the cover removing plate can simultaneously limit multiple groups of sample tubes, sensors are arranged on the two sides of the cover removing plate, and the sensors can judge the state of the sample tube.

[0012] As an optimal scheme of the switch cover device, the lifting support mechanism comprises a support assembly and a support lifting assembly; the support lifting assembly is provided with the support assembly, the support lifting assembly can drive the support assembly to lift and lower, and the support assembly is provided with multiple groups of switch cover assemblies.

[0013] As an optimal scheme of the switch cover device, the support assembly comprises a guide rail support piece, a support seat piece and a bit seat piece; the bit seat piece is connected with the support seat piece, the bit seat piece is arranged below the support seat piece, the guide rail support piece can guide the support seat piece to slide, and the support seat piece can support the switch cover assembly.

[0014] As an optimal scheme of the switch cover device, the bit seat piece comprises a bit seat, a bit holder, a guide groove and a bit lock; the guide groove is formed in the side edge of the bit seat, the bit holder is connected with the bit seat through the guide groove, and the bit lock can fix the bit holder.

[0015] As an optimal scheme of the switch cover device, the support seat piece comprises a support seat, a plurality of support holes are formed in the support seat, and the switch cover assembly can be installed and supported through the plurality of support holes.

[0016] As an optimal scheme of the switch cover device, the guide rail support piece comprises a support guide rail and a connecting plate; the connecting plate is connected with the support seat piece, and the support guide rail can guide and limit the connecting plate.

[0017] As an optimal scheme of the switch cover device, the switch cover device further comprises a carrier plate and a carrier plate driving piece; the carrier plate can load multiple groups of sample tubes, the carrier plate is connected with the carrier plate driving piece, and the carrier plate driving piece can drive the carrier plate to move horizontally.

[0018] The switch cover device has the following beneficial effects:

[0019] 1. Support lifting assembly drive support assembly lifting movement, with switch cover assembly to sample tube cover and cover, lifting limit group lifting movement, resist sample tube cap to achieve uncap.

[0020] 2. Large batch of simultaneous switch cover, can be set according to the needs of the corresponding number of switch cover assembly on the support seat piece, to adapt to different number, different position distribution of sample box, can be carried out collectively switch cover.

[0021] 3. Batch head can be replaced, batch head frame can be quickly in and out of batch head seat by guide groove, batch head lock for locking, can replace different specifications of batch head, adapt to different specifications of sample tube.

[0022] 4. Coupling is provided with elastic element, which leaves floating space for the contact between batch head and sample tube, preventing batch head from impacting and damaging sample tube.

[0023] 5. The uncap plate is provided with two end sensors, which can be used to judge: whether the sample tube (tube body and cap) has / has tube body / has cap / tube body height / sample tube (tube body and cap) height. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor. Among them:

[0025] Figure 1 It is the internal perspective view of the switch cover device.

[0026] Figure 2 It is the switch cover assembly perspective view of the switch cover device.

[0027] Figure 3 It is Figure 1 the top view of the switch cover device.

[0028] Figure 4 It is Figure 3 the A-A section view of the switch cover device.

[0029] Figure 5 It is Figure 4 the F1 enlarged view of the switch cover device.

[0030] Figure 6 It is the switch cover mechanism schematic view of the switch cover device.

[0031] Figure 7 It is Figure 1 the front view of the switch cover device.

[0032] Figure 8 It is the internal three-dimensional working state schematic view of the switch cover device.

[0033] Figure 9 It is the schematic view of the carrier plate of the switch cover device.

[0034] Figure 10 It is the overall schematic view of the switch cover device.

[0035] Fig. 1 is a lifting support mechanism, 2 is a switch cover mechanism, 21 is a switch cover assembly, 22 is a lifting limiting group, 211 is a rotary driving piece, 212 is a connecting piece, 213 is a batch head, 2121 is a shaft coupling, 2122 is a bearing, 221 is a cover driving piece, 222 is a cover limiting piece, 2221 is a cover plate, 2222 is a sensor, 11 is a support assembly, 12 is a support lifting assembly, 111 is a guide rail support, 112 is a support seat piece, 113 is a batch head seat piece, 1131 is a batch head seat, 1132 is a batch head frame, 1133 is a guide groove, 1134 is a batch head lock, 1121 is a support seat, 1111 is a support guide rail, 1112 is a connecting plate, 3 is a carrier plate, 4 is a carrier plate driving piece; DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0038] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments. Embodiment 1

[0039] Reference Figures 1-3 For the first embodiment of the present application, the embodiment provides a switch cover device, which comprises a lifting support mechanism 1 and a switch cover mechanism 2; the switch cover mechanism 2 is arranged on the lifting support mechanism 1, the lifting support mechanism 1 drives the switch cover mechanism 2 to lift, and the switch cover mechanism 2 opens or closes a plurality of sample tubes.

[0040] Specific, including lifting support mechanism 1 and switch cover mechanism 2; lifting support mechanism 1 is provided with switch cover mechanism 2, lifting support mechanism 1 can drive switch cover mechanism 2 to lift, switch cover mechanism 2 can open or close the cover of the sample tube.

[0041] In summary, the lifting support mechanism 1 drives the switch cover mechanism 2 to lift, and the switch cover mechanism 2 can open or close the cover of the sample tube, and multiple groups of sample tubes can be opened or closed simultaneously, thereby greatly improving the work efficiency. Embodiment 2

[0042] Referring to Figures 1-10 For the second embodiment of the utility model, in the last embodiment, the switch cover device comprises a lifting support mechanism 1 and a switch cover mechanism 2; the switch cover mechanism 2 is arranged on the lifting support mechanism 1, and the lifting support mechanism 1 drives the switch cover mechanism 2 to lift, and the switch cover mechanism 2 opens or closes the cover of multiple groups of sample tubes.

[0043] Specific, including lifting support mechanism 1 and switch cover mechanism 2; lifting support mechanism 1 is provided with switch cover mechanism 2, lifting support mechanism 1 can drive switch cover mechanism 2 to lift, switch cover mechanism 2 can open or close the cover of the sample tube.

[0044] Further, the switch cover mechanism 2 comprises a switch cover assembly 21 and a lifting limiting group 22; the lifting support mechanism 1 is provided with multiple groups of switch cover assemblies 21, and the lifting limiting group 22 can lift on the lifting support mechanism 1; the multiple groups of switch cover assemblies 21 can simultaneously open or close the cover of multiple groups of sample tubes, and the lifting limiting group 22 can limit the rotation of the multiple groups of sample tubes.

[0045] Preferably, the lifting limiting group 22 lifts along with the lifting support mechanism 1, and when it is necessary to limit the sample tube, the lifting limiting group 22 can lift alone to limit the sample tube.

[0046] Preferably, the support seat 1121 is provided with multiple groups of support holes, the switch cover assembly 21 can be supported in the support hole, the support seat 1121 can support multiple groups of switch cover assemblies 21, each group of switch cover assemblies 21 corresponds to a sample tube, so that the opening and closing of multiple groups of sample tubes can be realized simultaneously.

[0047] Further, the switch cover assembly 21 comprises a rotary driving member 211, a connecting member 212 and a bit head 213, the rotary driving member 211 is connected with the bit head 213 through the connecting member 212, the rotary driving member 211 drives the bit head 213 to rotate through the driving connecting member 212, and the bit head 213 can rotate the cap of the sample tube.

[0048] Preferably, the batch head 213 can drive the cap of the sample tube to rotate, so as to realize the opening or closing operation of the sample tube.

[0049] Preferably, the rotating driving part 211 can be driven by a motor, and of course other driving modes can also be adopted. The torque of the rotating driving part 211 can be adjusted, so as to adapt to different types of sample tubes.

[0050] Further, the connecting part 212 comprises a shaft coupling 2121, a bearing 2122, and an elastic part. The bearing 2122 is arranged on the outer side of the shaft coupling 2121, and the elastic part is arranged in the shaft coupling 2121. The batch head 213 can buffer the sample tube through the elastic part.

[0051] Preferably, by arranging the bearing 2122, the connecting part 212 and the batch head 213 can be limited during rotation, so as to facilitate the rotation of the connecting part 212 and the batch head 213, and realize the opening and closing operation.

[0052] Preferably, the elastic part is a compression spring, which can leave a floating space when the batch head 213 contacts the sample tube, so as to prevent the batch head from colliding and damaging the sample tube.

[0053] Further, the lifting limiting group 22 comprises a cap removing driving part 221 and a cap removing limiting part 222. The cap removing limiting part 222 can be driven by the cap removing driving part 221 to lift and lower, and can limit the tube body or the cap of the sample tube.

[0054] Preferably, the cap removing driving part 221 comprises a motor, a lead screw, a guide rail, and a sliding block, etc. The lead screw is driven to rotate by the motor, the sliding block is connected with the cap removing limiting part 222, the lead screw is threadedly connected with the sliding block for transmission, and the guide rail can guide the sliding block to ensure that the sliding block drives the cap removing limiting part 222 to vertically lift and lower.

[0055] Further, the cap removing limiting part 222 comprises a cap removing plate 2221 and a sensor 2222. The cap removing plate 2221 can simultaneously limit multiple groups of sample tubes, and the two sides of the cap removing plate 2221 are provided with the sensor 2222, which can judge the state of the sample tube.

[0056] Preferably, the cap removing plate 2221 can limit the tube body of multiple groups of sample tubes during lifting and lowering, so as to avoid the rotation of the tube body of the sample tube during the opening process of the opening and closing assembly 21. The cap removing plate 2221 can simultaneously limit multiple groups of sample tubes.

[0057] Preferably, the cap removing plate 2221 can simultaneously abut against the caps of multiple groups of sample tubes, and finally complete the closing operation in cooperation with the opening and closing assembly 21.

[0058] Further, the lifting supporting mechanism 1 comprises a supporting assembly 11 and a supporting lifting assembly 12; the supporting assembly 11 is arranged on the supporting lifting assembly 12, the supporting lifting assembly 12 can drive the supporting assembly 11 to lift, and the supporting assembly 11 is provided with a plurality of switch cover assemblies 21.

[0059] Preferably, the supporting lifting assembly 12 can adopt a transmission mode such as a motor lead screw, and of course, other lifting modes in the prior art can also be adopted as long as they can drive the supporting assembly 11 to lift.

[0060] Preferably, the supporting assembly 11 is driven by the supporting lifting assembly 12 to lift, the supporting assembly 11 can drive the switch cover mechanism 2 to lift, and the lifting limiting assembly 22 can lift on the supporting assembly 11.

[0061] Further, the supporting assembly 11 comprises a guide rail supporting piece 111, a supporting seat piece 112, and a bit head seat piece 113; the bit head seat piece 113 is connected with the supporting seat piece 112, the bit head seat piece 113 is arranged below the supporting seat piece 112, the guide rail supporting piece 111 can guide and slide the supporting seat piece 112; and the supporting seat piece 112 can support the switch cover assembly 21.

[0062] Further, the bit head seat piece 113 comprises a bit head seat 1131, a bit head frame 1132, a guide groove 1133, and a bit head lock 1134; the guide groove 1133 is arranged on the side of the bit head seat 1131, the bit head frame 1132 is connected with the bit head seat 1131 through the guide groove 1133, and the bit head lock 1134 can fix the bit head frame 1132.

[0063] Further, the supporting seat piece 112 comprises a supporting seat 1121, a plurality of supporting holes are arranged on the supporting seat 1121, and the switch cover assembly 21 can be installed and supported through the plurality of supporting holes.

[0064] Further, the guide rail supporting piece 111 comprises a supporting guide rail 1111 and a connecting plate 1112; the connecting plate 1112 is connected with the supporting seat piece 112, and the supporting guide rail 1111 can guide and limit the connecting plate 1112.

[0065] Further, it also comprises a carrier plate 3 and a carrier plate driving piece 4; the carrier plate 3 can load a plurality of sample tubes, the carrier plate 3 is connected with the carrier plate driving piece 4, and the carrier plate driving piece 4 can drive the carrier plate 3 to move horizontally.

[0066] Preferably, the carrier plate driving piece 4 can drive the carrier plate 3 to move forward and backward horizontally to receive or transport a plurality of sample tubes.

[0067] Working principle: arrange the sample tubes in the sample box in order, then place the sample box on the carrier plate 3, the carrier plate driving part 4 pulls the carrier plate 3 to recover to below the cover plate 2221, each sample tube corresponds to below a group of switch cover assemblies 21;

[0068] Opening the cover: the support lifting assembly 12 drives the support assembly 11 to descend, the support seat part 112, the bit seat part 113 and the lifting limiting group 22 descend, when the switch cover assembly 21 is close to the sample tube, the bit 213 enters the sample tube cap, and then the rotary driving part 211 starts to drive the bit 213 to rotate, the sample tube is opened, and then the support lifting assembly 12 drives the support assembly 11 to ascend, at this time, the bit 213 is adhered to the cap and ascends together, and the opening of the cover is completed.

[0069] Closing the cover: the support lifting assembly 12 drives the support assembly 11 to descend until the sensor 2222 arranged on both sides of the cover plate 2221 judges the cryopreservation tube body, the rotary driving part 211 rotates in the opposite direction, continues to descend, the cap on the bit 213 contacts the tube body and rotates to close the cover, the rotary driving part 211 no longer rotates after being subjected to a set resistance, the sample tube is closed, the support lifting assembly 12 drives the support assembly 11 to ascend, the cover driving part 221 drives the cover limiting part 222 to descend, the cover plate 2221 contacts and abuts against the cap, the bit 213 ascends and is separated from the cap, the cover plate 2221 further ascends, and the closing of the cover is completed.

[0070] In summary, the support lifting assembly 12 drives the support assembly 11 to move up and down, the switch cover assembly 21 opens and closes the sample tube, the lifting limiting group 22 moves up and down to abut against the sample tube cap to achieve the cover opening; a large number of covers can be opened and closed at the same time, a corresponding number of switch cover assemblies 21 can be arranged on the support seat part 112 according to needs, so that sample boxes with different numbers and different position distributions can be collectively opened and closed; the bit 213 can be replaced, the bit holder 1132 can quickly enter and exit the bit seat 1131 through the guide groove 1133, and the bit lock 1134 can be locked, so that different specifications of bits 213 can be replaced to adapt to sample tubes with different specifications; the elastic element arranged in the coupling 2121 leaves a floating space for the contact between the bit 213 and the sample tube, so that the bit is prevented from being damaged by impact; the cover plate 2221 is provided with the sensors 2222 at both ends, which can be used to judge whether the sample tube (the tube body and the cap) exists or not, whether the tube body exists or not, whether the cap exists or not, whether the tube body is high or low, and whether the sample tube (the tube body and the cap) is high or low.

[0071] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Thus, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0072] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0073] It is to be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes and omissions of parts illustrated in the drawings, as those skilled in the art will readily understand. Such being the case, it should be understood that the development efforts might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0074] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A cover opening and closing device, characterized in that: It includes a lifting support mechanism (1) and a cover opening and closing mechanism (2); the lifting support mechanism (1) is provided with a cover opening and closing mechanism (2), the lifting support mechanism (1) can drive the cover opening and closing mechanism (2) to lift and lower, and the cover opening and closing mechanism (2) can open or close the sample tube.

2. The opening and closing cover device as described in claim 1, characterized in that: The opening and closing mechanism (2) includes an opening and closing cover assembly (21) and a lifting limit group (22); multiple opening and closing cover assemblies (21) are provided on the lifting support mechanism (1), the lifting limit group (22) can be lifted and lowered on the lifting support mechanism (1), multiple opening and closing cover assemblies (21) can open or close multiple sample tubes at the same time, and the lifting limit group (22) can limit the removal of cover from multiple sample tubes.

3. The opening and closing cover device as described in claim 2, characterized in that: The switch cover assembly (21) includes a rotary drive (211), a connector (212), and a bit (213). The rotary drive (211) is connected to the bit (213) through the connector (212). The rotary drive (211) drives the bit (213) to rotate through the drive connector (212). The bit (213) can rotate the cap of the sample tube.

4. The opening and closing cover device as described in claim 3, characterized in that: The connector (212) includes a coupling (2121), a bearing (2122), and an elastic element; the bearing (2122) is provided on the outside of the coupling (2121), and the elastic element is provided inside the coupling (2121); the bit (213) can buffer the sample tube through the elastic element.

5. The opening and closing cover device as described in claim 2, characterized in that: The lifting and limiting group (22) includes a cap removal drive (221) and a cap removal limiting member (222); the cap removal drive (221) can drive the cap removal limiting member (222) to move up and down, and the cap removal limiting member (222) can limit the tube body or cap of the sample tube.

6. The opening and closing cover device as described in claim 5, characterized in that: The cap removal limiting component (222) includes a cap removal plate (2221) and a sensor (2222). The cap removal plate (2221) can limit multiple sample tubes at the same time. Sensors (2222) are provided on both sides of the cap removal plate (2221). The sensors (2222) can determine the status of the sample tubes.

7. The opening and closing cover device as described in claim 2, characterized in that: The lifting support mechanism (1) includes a support component (11) and a support lifting component (12); the support lifting component (12) is provided with the support component (11), the support lifting component (12) can drive the support component (11) to lift, and the support component (11) is provided with multiple sets of switch cover components (21).

8. The cover opening and closing device as described in claim 7, characterized in that: The support assembly (11) includes a guide rail support (111), a support base (112), and a bit holder (113); the bit holder (113) is connected to the support base (112), and the bit holder (113) is located below the support base (112); the guide rail support (111) can guide the support base (112) to slide; the support base (112) can support the switch cover assembly (21).

9. The cover opening and closing device as described in claim 8, characterized in that: The bit holder (113) includes a bit holder (1131), a bit holder (1132), a guide groove (1133), and a bit lock (1134). The bit holder (1131) has a guide groove (1133) on its side. The bit holder (1132) is connected to the bit holder (1131) through the guide groove (1133). The bit lock (1134) can fix the bit holder (1132).

10. The cover opening and closing device as claimed in claim 8, characterized in that: The support base (112) includes a support base (1121), on which multiple sets of support holes are provided, through which the switch cover assembly (21) can be installed and supported.

11. The cover opening and closing device as claimed in claim 8, characterized in that: The guide rail support (111) includes a support guide rail (1111) and a connecting plate (1112); the connecting plate (1112) is connected to the support base (112), and the support guide rail (1111) can guide and limit the connecting plate (1112).

12. The opening and closing cover device as described in any one of claims 1 to 11, characterized in that: It also includes a carrier plate (3) and a carrier plate drive (4). The carrier plate (3) can load multiple sets of sample tubes. The carrier plate (3) is connected to the carrier plate drive (4). The carrier plate drive (4) can drive the carrier plate (3) to move horizontally.

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