Cover opening and closing device

Abstract

The utility model relates to the technical field of cover opening and closing, and discloses a cover opening and closing device which comprises a fixing frame suitable for placing a row of cover connecting containers, the cover connecting containers comprise bodies and cover bodies, the cover bodies are provided with sealing plugs, the sealing plugs are suitable for being in interference fit with the inner walls of the bodies, the first sides of the cover bodies are hinged to the bodies, and the second sides of the cover bodies protrude out of the outer walls of the bodies; the first driving assembly comprises a first driving rod, the first driving rod is suitable for being arranged below the second sides of the cover bodies of the row of containers connected with the covers and abuts against the cover bodies, and when the first driving rod is driven to rotate upwards, all the cover bodies are driven to be opened; and the second driving assembly comprises a pressing wheel, the pressing wheel is movably arranged above the fixing frame, and when the pressing wheel moves towards the second side above the cover bodies, the pressing wheel is suitable for driving the cover bodies to rotate and enabling the sealing plug to be embedded into the body. The cover opening and closing device can be used for opening and closing a row of containers with covers at the same time, and the cover opening and closing efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to open and close lid technical field, specifically open and close lid device. BACKGROUND

[0002] Flip cap test tube, especially EP tube (Eppendorf company first large-scale application, industry commonly known as) commonly used in the field of life science, due to its tolerance centrifugal force, convenient to use, chemical property is stable, is used in the storage and processing of sample.

[0003] In the laboratory, some samples need to be stored with the cover due to air humidity or light requirements, and the cover needs to be opened when the sample is taken out. The sealing requirement of the flip cap test tube is relatively strict, and a plug matched with the test tube body is arranged on the test tube cover. The plug is usually in interference fit with the inner wall of the opening of the test tube body, so as to improve the sealing performance. This will cause the flip cap test tube to need a large force to open, and when the interference fit state is broken, the test tube cover can be easily opened with a small force.

[0004] In the related art, when the experimenter needs to open the covers of a plurality of flip cap test tubes in a test tube rack, the covers are usually opened one by one, and the covers are usually closed one by one when closing, so the opening and closing efficiency is low. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides an opening and closing device to solve the problem of low opening and closing efficiency in the related art.

[0006] The utility model provides an opening and closing device, comprising:

[0007] The fixed frame is suitable for placing a row of cover-connected containers, the cover-connected container comprises a body and a cover body, the cover body is provided with a sealing plug, the sealing plug is suitable for interference fit with the inner wall of the body, the first side of the cover body is hinged to the body, and the second side of the cover body protrudes from the outer wall of the body.

[0008] The first driving assembly comprises a first driving rod, the first driving rod is suitable for being arranged below the second side of the cover body of a row of cover-connected containers and abutting against the cover body, and when the first driving rod is driven to rotate upward, each cover body is driven to open.

[0009] The second driving assembly comprises a pressing wheel, the pressing wheel is movably arranged above the fixed frame, and when the pressing wheel moves above each cover body towards the second side, the pressing wheel is suitable for driving the cover body to rotate and embedding the sealing plug into the body.

[0010] Beneficial effects: The fixed frame can place a row of cover containers. When it is needed to open a row of cover containers, the first driving rod is rotated upward, the first driving rod is in contact with the cover of the cover container, so that the cover is pushed upward, the sealing plug is separated from the interference fit with the body, and the cover is opened. When it is needed to close the cover, the pressure wheel moves above each cover towards the second side, and the cover is pressed to rotate and the sealing plug is embedded in the body, so that the cover is sealed on the body. Therefore, the opening and closing device can simultaneously open and close a row of cover containers, and the opening and closing efficiency is high. In addition, the first driving rod is in contact with the cover of the cover container, and the two are not fixedly connected together, so that the structure of the existing cover container does not need to be adjusted, and the opening and closing device can be applied to various cover containers.

[0011] In an alternative embodiment, the second driving assembly includes a power mechanism, which drives the pressure wheel to move away from above each cover and drives the first driving rod to rotate upward.

[0012] Beneficial effects: The power mechanism drives the pressure wheel to move away from above each cover and drives the first driving rod to rotate upward, so that the opening and closing can be realized by one power mechanism, the structure is simple, the cost is low, and the maintenance is convenient.

[0013] In an alternative embodiment, the first driving assembly further includes a second driving rod connected with the first driving rod, the second driving rod is hinged with the fixed frame through a hinge shaft, and the axis of the hinge shaft is collinear with the rotation axis of the cover.

[0014] Beneficial effects: By connecting the second driving rod with the first driving rod and hinging the second driving rod with the fixed frame through the hinge shaft, the first driving rod can be driven to rotate by driving the second driving rod to rotate. In addition, since the axis of the hinge shaft is collinear with the rotation axis of the cover, the first driving rod can be kept in contact with the cover during the rotation of the cover, so that the pressure wheel can press the cover to rotate and embed the sealing plug in the body when the pressure wheel moves above each cover towards the second side during the closing of the cover. The cover will press the first driving rod during the rotation of the cover, so that the first driving rod rotates simultaneously until the cover is in the closed state.

[0015] In an alternative embodiment, two second driving rods are provided, and the two second driving rods are connected with the first driving rod in a U shape.

[0016] Beneficial effects: Since two second driving rods are provided and the two second driving rods are connected with the first driving rod in a U shape, the first driving rod can be more stably driven to rotate when the two second driving rods rotate.

[0017] In an alternative implementation, the second driving assembly comprises a sliding plate, the sliding plate is in sliding fit with the fixing frame, and the pressing wheel is rotatably arranged on the sliding plate.

[0018] Beneficial effects: by arranging the sliding plate, the sliding plate is in sliding fit with the fixing frame, and the sliding plate moves together with the pressing wheel when sliding, which can ensure the moving direction of the pressing wheel, and further ensure that the cover body can be closed. When closing the cover, the pressing wheel rolls and moves relative to the cover body, and the rolling friction between the pressing wheel and the cover body can not cause the deformation of the cover body.

[0019] In an alternative implementation, the second driving assembly further comprises a power mechanism, the power mechanism is used to drive the sliding plate to slide.

[0020] Beneficial effects: by arranging the power mechanism, the sliding plate does not need to be manually driven, which is beneficial to realize the automatic opening and closing of the cover.

[0021] In an alternative implementation, the power mechanism comprises a driving motor and a first transmission structure connected between the output shaft of the driving motor and the sliding plate, when the driving motor rotates in a first direction, the sliding plate can be driven to slide away from the cover body through the first transmission structure, and when the driving motor rotates in a second direction, the sliding plate can be driven to slide towards the cover body through the first transmission structure.

[0022] Beneficial effects: when the driving motor rotates in the first direction, the sliding plate is driven to slide away from the cover body through the first transmission structure, which can avoid that the pressing wheel is pressed above the cover body to cause the cover to be unable to be opened, and when the driving motor rotates in the second direction, the sliding plate is driven to slide towards the cover body through the first transmission structure, so that the pressing wheel can be gradually pressed on the cover body and drive the cover body to rotate, and the cover can be closed.

[0023] In an alternative implementation, the first transmission structure comprises:

[0024] a first connecting rod, a first end of the first connecting rod is fixedly connected with the output shaft of the driving motor;

[0025] a second connecting rod, a first end of the second connecting rod is hingedly connected with a second end of the first connecting rod, and a second end of the second connecting rod is hingedly connected with the sliding plate.

[0026] Beneficial effects: when the driving motor rotates, the first connecting rod is driven to swing, and the sliding plate is further driven to slide through the second connecting rod.

[0027] In an alternative implementation, when the power mechanism drives the sliding plate to slide away from the cover body, the second driving rod is driven to rotate and the first driving rod is driven to rotate upwards through the second transmission structure.

[0028] Beneficial effects: when the power mechanism drives the sliding plate to slide away from the cover, the second driving rod is rotated by the second transmission structure and the first driving rod is rotated upward, and the sliding plate sliding away from the cover drives the pressing wheel to move away from the cover, and at the same time, the power mechanism drives the second driving rod to rotate by the second transmission structure and the first driving rod to rotate upward, thereby realizing the opening of the cover. The power mechanism can also drive the sliding plate to slide towards the cover to realize the closing of the cover, so that one power mechanism can realize the opening and closing of the cover, the structure is simple, the cost is low, and maintenance is convenient.

[0029] In an alternative embodiment, the power mechanism comprises a driving motor and a first transmission structure connected between the output shaft of the driving motor and the sliding plate. When the driving motor rotates in a first direction, the sliding plate can be driven to slide away from the cover by the first transmission structure. When the driving motor rotates in a second direction, the sliding plate can be driven to slide towards the cover by the first transmission structure. When the driving motor rotates in the first direction, the second driving rod can be rotated and the first driving rod can be rotated upward.

[0030] Beneficial effects: when the cover needs to be opened, the driving motor rotates in the first direction, the sliding plate slides away from the cover by the first transmission structure, and the pressing wheel gradually moves away from the cover. At the same time, the second driving rod is rotated by the second transmission structure and the first driving rod is rotated upward, thereby realizing the opening of the cover. When the cover needs to be closed, the driving motor rotates in the second direction, the sliding plate slides towards the cover by the first transmission structure, the pressing wheel moves and rotates relative to the cover, and the cover is pressed to rotate and embed the sealing plug into the body. The first driving rod is rotated at the same time by the cover during the rotation process until the cover is closed. One driving motor can realize the opening and closing of the cover, the structure is simple, the cost is low, and maintenance is convenient.

[0031] In an alternative embodiment, the first transmission structure comprises a first connecting rod and a second connecting rod. The first end of the first connecting rod is fixedly connected with the output shaft of the driving motor. The first end of the second connecting rod is hingedly connected with the second end of the first connecting rod. The second end of the second connecting rod is hingedly connected with the sliding plate.

[0032] The second transmission structure comprises a third connecting rod. The first end of the third connecting rod is fixedly connected with the output shaft of the driving motor or the first end of the first connecting rod. The second end of the third connecting rod is provided with a pressing roller. When the pressing wheel is above the cover, the pressing roller is pressed above the second driving rod.

[0033] Beneficial effect: when the driving motor rotates in the first direction, it drives the first connecting rod and the third connecting rod to swing, and when the first connecting rod swings, it pulls the sliding plate to slide away from the cover through the second connecting rod, the compression wheel gradually moves away from the cover, at the same time, the compression roller on the third connecting rod exerts downward pressure on the second driving rod and rolls relative to the second driving rod, drives the second driving rod to rotate and makes the first driving rod rotate upward, realizes the opening of the cover. When the driving motor rotates in the second direction, the sliding plate is driven to slide towards the cover through the first connecting rod and the second connecting rod, and the compression wheel moves and rotates relative to the cover, exerts pressure on the cover, drives the cover to rotate and makes the sealing plug embedded in the body, and the cover will press the first driving rod during rotation, so that the first driving rod rotates at the same time until the cover is closed.

[0034] In an alternative embodiment, the contact position of the compression roller and the second driving rod is close to the end of the second driving rod away from the first driving rod.

[0035] Beneficial effect: the compression roller can more easily exert pressure on the second driving rod to make it rotate, and the second driving rod rotates and forms a larger lever force through the hinged shaft connected with the hinged support, thereby driving the sealing plug of the cover to be pulled out of the body.

[0036] In an alternative embodiment, the third connecting rod is integrated with the first connecting rod, and the third connecting rod and the first connecting rod form a V-shaped swing frame.

[0037] Beneficial effect: the third connecting rod is integrated with the first connecting rod, reducing the number of parts and facilitating assembly. Since the third connecting rod and the first connecting rod form a V-shaped swing frame, the sliding plate can be driven to slide through the second connecting rod, and the force exerted by the compression roller on the second driving rod is away from the hinged shaft, ensuring that the compression roller can exert pressure on the second driving rod.

[0038] In an alternative embodiment, the driving motor is provided with the output shaft on both sides, and correspondingly, the first transmission structure is symmetrically provided with two groups.

[0039] Beneficial effect: since the driving motor is provided with the output shaft on both sides, and the first transmission structure is symmetrically provided with two groups, the sliding plate can be more smoothly driven to slide and the two second driving rods can be simultaneously rotated.

[0040] In an alternative embodiment, a torsional spring is provided between the second driving rod and the fixed support, and the torsional force of the torsional spring can make the second driving rod rotate to a preset position, and at the preset position, the cover is opened.

[0041] Beneficial effects: due to the limited rotation range of the third connecting rod, the compression roller cannot always be in contact with the second driving rod, and by providing a torsion spring between the second driving rod and the fixed frame, when the sealing plug is separated from the body, the torsion of the torsion spring can drive the second driving rod to rotate to the preset position, and the entire cover opening process does not require manual operation of the user.

[0042] In an alternative embodiment, the fixed frame comprises:

[0043] A base;

[0044] A support table fixed to the base, and the second driving assembly is arranged on the support table;

[0045] A tube rack provided with a plurality of placement positions for placing the cover-connected containers, and the tube rack is arranged on the base and detachably connected with the base.

[0046] Beneficial effects: since the tube rack is detachably connected with the base, it is convenient to replace the tube rack, and it can be suitable for opening the covers of different models of cover-connected containers.

[0047] In an alternative embodiment, the base is provided with a positioning portion, and the tube rack is detachably connected with the positioning portion.

[0048] Beneficial effects: the positioning portion can position the installation of the tube rack, and it is convenient to fix the tube rack.

[0049] In an alternative embodiment, the placement position is provided with an opening on the side away from the support table.

[0050] Beneficial effects: since the placement position is provided with an opening on the side away from the support table, one side of the cover-connected container can be exposed outside through the opening, and an external moving device can be used to attach the magnet to the body to prevent loss of magnetic force, so as to adsorb the sample containing magnetic beads.

[0051] In an alternative embodiment, the tube rack is provided with a heater and a temperature sensor, and the cover opening and closing device further comprises a controller in communication connection with the heater and the temperature sensor.

[0052] Beneficial effects: by providing the heater, the temperature sensor and the controller, the temperature of the tube rack can be controlled.

[0053] In an alternative embodiment, the fixed frame further comprises a hinged support, the second driving rod is hinged with the hinged support, the hinged support is fixedly connected with the tube rack, and the connection position of the hinged support and the tube rack is adjustable.

[0054] Beneficial effects: by providing the heater, the temperature sensor and the controller, the temperature of the tube rack can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0056] Figure 1 This is a schematic diagram of an opening and closing cover device according to an embodiment of the present invention when the cover is closed;

[0057] Figure 2 This is a schematic diagram of an opening and closing cover device according to an embodiment of the present invention during the process of opening the cover;

[0058] Figure 3 This is a schematic diagram of an opening and closing cover device according to an embodiment of the utility model when the cover is opened;

[0059] Figure 4 for Figure 1 Schematic diagram of the structure of the central pipe rack.

[0060] Description of reference numerals:

[0061] 11. Pipe rack; 12. Container with lid; 121. Lid; 122. Main body; 123. Sealing plug; 131. First drive rod; 132. Second drive rod; 14. Articulated bracket; 15. Torsion spring; 21. Slide plate; 22. Slide rail; 24. Pressing wheel; 231. Drive motor; 232. First connecting rod; 233. Second connecting rod; 234. Third connecting rod; 235. Pressing roller; 3. Base; 4. Support platform; 31. Positioning unit. DETAILED DESCRIPTION

[0062] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0063] The following combination Figures 1 to 4 , describing the embodiments of the present utility model.

[0064] According to an embodiment of the present invention, a cover opening and closing device is provided, comprising a fixing frame, a first driving assembly and a second driving assembly.

[0065] The fixed frame is adapted to place a row of the lidded containers 12, and each lidded container 12 comprises a body 122 and a lid 121, the lid 121 is provided with a sealing plug 123 which is adapted to be in interference fit with the inner wall of the body 122, a first side of the lid 121 is hinged to the body 122, and a second side of the lid 121 protrudes from the outer wall of the body 122; the first driving assembly comprises a first driving rod 131 which is adapted to be arranged below the second side of the lid 121 of the row of the lidded containers 12 and abut against the lid 121, and when the first driving rod 131 is driven to rotate upward, each lid 121 is driven to open; the second driving assembly comprises a pressing wheel 24 which is movably arranged above the fixed frame, and when the pressing wheel 24 moves above each lid 121 towards the second side, the pressing wheel 24 is adapted to drive the lid 121 to rotate and make the sealing plug 123 embedded into the body 122.

[0066] In this embodiment, the fixed frame can place a row of the lidded containers 12, when it is needed to open the lids of the row of the lidded containers 12, the first driving rod 131 is rotated upward, the first driving rod 131 abuts against the lid 121 of the lidded container 12, thus the lid 121 can be lifted upward to make the sealing plug 123 disengage from the interference fit with the body 122, so as to open the lid 121. When it is needed to close the lids, the pressing wheel 24 moves above each lid 121 towards the second side to apply pressure to the lid 121, drive the lid 121 to rotate and make the sealing plug 123 embedded into the body 122, so as to seal the lid 121 on the body 122. Therefore, the opening and closing device can simultaneously open and close the lids of a row of the lidded containers 12, and the opening and closing efficiency is high. In addition, the first driving rod 131 only abuts against the lid 121 of the lidded container 12, and the two do not need to be fixedly connected together, thus the structure of the existing lidded container 12 does not need to be adjusted, and the opening and closing device can be applied to various lidded containers 12.

[0067] Specifically, the lid 121 of the lidded container 12 has a closed state and an open state, when the lids 121 of the row of the lidded containers 12 are in the closed state, the pressing wheel 24 is located above the lid 121 to apply downward pressure to the lid 121, and the first driving rod 131 is located below the second side of the lid 121. When it is needed to open the lids, the pressing wheel 24 moves away from the second side, and no longer presses the lid 121, and the first driving rod 131 is rotated upward, the first driving rod 131 lifts the lid 121 upward to make the sealing plug 123 disengage from the interference fit with the body 122, so as to open the lid 121 to the open state. When it is needed to close the lids, the pressing wheel 24 moves above each lid 121 towards the second side to apply pressure to the lid 121, drive the lid 121 to rotate and make the sealing plug 123 embedded into the body 122, and the lid 121 will press the first driving rod 131 in the process of rotating, so as to simultaneously rotate the first driving rod 131, until the lid 121 is in the closed state.

[0068] In detail, the cover-connected container 12 can be a cover-connected tube, a cover-connected bottle, etc.

[0069] In an embodiment, the second driving assembly comprises a power mechanism, which drives the pressing wheel 24 to move away from above each cover body 121 and drives the first driving rod 131 to rotate upward.

[0070] In this embodiment, the power mechanism drives the pressing wheel 24 to move away from above each cover body and drives the first driving rod 131 to rotate upward, and the opening and closing of the cover can be achieved by one power mechanism, which is simple in structure, low in cost and convenient to maintain.

[0071] In an embodiment, the first driving assembly further comprises a second driving rod 132 connected with the first driving rod 131, and the second driving rod 132 is hinged with the fixed frame through a hinge shaft, and the axis of the hinge shaft is collinear with the rotation axis of the cover body 121.

[0072] In this embodiment, the second driving rod 132 is connected with the first driving rod 131, and the second driving rod 132 is hinged with the fixed frame through a hinge shaft, so that driving the second driving rod 132 to rotate can drive the first driving rod 131 to rotate, and in addition, since the axis of the hinge shaft is collinear with the rotation axis of the cover body 121, it can be ensured that the first driving rod 131 is in contact with the cover body 121 during the rotation of the cover body 121, and in turn, it can be ensured that when the cover is closed, the pressing wheel 24 moves toward the second side above each cover body 121 and exerts pressure on the cover body 121, driving the cover body 121 to rotate and embedding the sealing plug 123 into the body 122, and the cover body 121 will press the first driving rod 131 during the rotation, so that the first driving rod 131 rotates at the same time, until the cover body 121 is in the closed state.

[0073] In detail, the second driving rod 132 is connected with the end of the first driving rod 131.

[0074] In an embodiment not shown in the figure, the second driving rod 132 can not be connected with the end of the first driving rod 131, but connected with the first driving rod 131 near the end.

[0075] In an embodiment, two second driving rods 132 are provided, and the two second driving rods 132 are connected with the first driving rod 131 in a U shape.

[0076] In this embodiment, since the second driving rod 132 is provided with two second driving rods 132, and the two second driving rods 132 are connected with the first driving rod 131 in a U shape, the two second driving rods 132 can drive the first driving rod 131 to rotate more stably when rotating.

[0077] In other alternative embodiments, the number of second driving rods 132 can be three or more.

[0078] In one embodiment, the second driving assembly comprises a sliding plate 21 which is in sliding fit with the fixing frame, and the pressing wheels 24 are rotatably arranged on the sliding plate 21.

[0079] In this embodiment, by arranging the sliding plate 21 which is in sliding fit with the fixing frame, the sliding plate 21 can drive the pressing wheels 24 to move when the sliding plate 21 slides, so that the moving direction of the pressing wheels 24 can be ensured, and thus the closing of the cover body 121 can be ensured. When the cover body 121 is closed, the pressing wheels 24 roll and move relative to the cover body 121, and the rolling friction between the pressing wheels 24 and the cover body 121 can not easily cause the deformation of the cover body 121.

[0080] In particular, in one embodiment, a plurality of the pressing wheels 24 are arranged side by side, and each of the pressing wheels 24 is hingedly connected to the end of the sliding plate 21 through a rolling shaft.

[0081] In an embodiment not shown in the drawings, the pressing wheels 24 can be arranged only one, and one pressing wheel 24 covers the plurality of the cover bodies 121.

[0082] In particular, in one embodiment, the top of the fixing frame is provided with a sliding rail 22, and the sliding plate 21 is in sliding fit with the sliding rail 22.

[0083] In one embodiment, the second driving assembly further comprises a power mechanism for driving the sliding plate 21 to slide.

[0084] In this embodiment, by arranging the power mechanism, the sliding plate 21 does not need to be manually driven, which is conducive to realizing the automatic opening and closing of the cover body 121.

[0085] In one embodiment, the power mechanism comprises a driving motor 231 and a first transmission structure connected between the output shaft of the driving motor 231 and the sliding plate 21, when the driving motor 231 rotates in a first direction, the sliding plate 21 can be driven to slide in a direction away from the cover body 121 through the first transmission structure, and when the driving motor 231 rotates in a second direction, the sliding plate 21 can be driven to slide in a direction close to the cover body 121 through the first transmission structure.

[0086] In this embodiment, when the driving motor 231 rotates in the first direction, the sliding plate 21 can be driven to slide in the direction away from the cover body 121 through the first transmission structure, so that the pressing wheels 24 can not be pressed on the cover body 121 to cause the cover body 121 to be unable to be opened, and when the driving motor 231 rotates in the second direction, the sliding plate 21 can be driven to slide in the direction close to the cover body 121 through the first transmission structure, so that the pressing wheels 24 can be gradually pressed on the cover body 121 and drive the cover body 121 to rotate, and thus the closing of the cover body 121 can be realized.

[0087] In an embodiment not shown in the drawings, the slide plate 21 can be driven to move by a pneumatic cylinder.

[0088] In an embodiment, the first transmission structure comprises a first connecting rod 232 and a second connecting rod 233. A first end of the first connecting rod 232 is fixedly connected to an output shaft of the driving motor 231; a first end of the second connecting rod 233 is hingedly connected to a second end of the first connecting rod 232, and a second end of the second connecting rod 233 is hingedly connected to the slide plate 21.

[0089] In this embodiment, when the driving motor 231 rotates, the first connecting rod 232 swings, and the slide plate 21 is driven to slide by the second connecting rod 233.

[0090] In an embodiment not shown in the drawings, the first transmission structure can comprise a gear and a rack, the gear is fixedly connected to an output shaft of the driving motor 231, and the rack is engaged with the gear and fixedly connected to the slide plate 21.

[0091] In an embodiment, when the power mechanism drives the slide plate 21 to slide away from the cover body 121, the second driving rod 132 is driven to rotate by the second transmission structure, and the first driving rod 131 is driven to rotate upward.

[0092] In this embodiment, when the power mechanism drives the slide plate 21 to slide away from the cover body 121, the second driving rod 132 is driven to rotate by the second transmission structure, and the first driving rod 131 is driven to rotate upward, the slide plate 21 slides away from the cover body 121 to drive the pressing wheel 24 to move away from the cover body 121, and the power mechanism drives the second driving rod 132 to rotate by the second transmission structure, and the first driving rod 131 is driven to rotate upward, thereby achieving the opening of the cover, and the power mechanism can also drive the slide plate 21 to slide toward the cover body 121 to achieve the closing of the cover, so that one power mechanism can achieve the opening and closing of the cover, the structure is simple, the cost is low, and the maintenance is convenient.

[0093] In an embodiment, the power mechanism comprises a driving motor 231 and a first transmission structure connected between an output shaft of the driving motor 231 and the slide plate 21, when the driving motor 231 rotates in a first direction, the slide plate 21 can be driven to slide away from the cover body 121 by the first transmission structure, when the driving motor 231 rotates in a second direction, the slide plate 21 can be driven to slide toward the cover body 121 by the first transmission structure, and when the driving motor 231 rotates in the first direction, the second driving rod 132 is driven to rotate, and the first driving rod 131 is driven to rotate upward.

[0094] In this embodiment, when the cover needs to be opened, the driving motor 231 rotates in the first direction, drives the sliding plate 21 to slide away from the cover body 121 through the first transmission structure, and the pressing wheel 24 gradually moves away from the cover body 121, at the same time, the second driving rod 132 is driven to rotate through the second transmission structure and the first driving rod 131 is driven to rotate upward, so as to open the cover. When the cover needs to be closed, the driving motor 231 rotates in the second direction, drives the sliding plate 21 to slide toward the cover body 121 through the first transmission structure, and the pressing wheel 24 moves and rotates relative to the cover body 121, applies pressure to the cover body 121, drives the cover body 121 to rotate and makes the sealing plug 123 embedded in the body 122. The cover body 121 will press the first driving rod 131 during rotation, so that the first driving rod 131 rotates at the same time, until the cover body 121 is closed. The opening and closing of the cover can be realized by one driving motor 231, which is simple in structure, low in cost and convenient to maintain.

[0095] In an embodiment not shown in the figure, when the power mechanism includes a cylinder, the cylinder drives the sliding plate 21 to slide, and the second transmission structure can be a slider, the slider is matched with the sliding plate 21 through a slope, when the sliding plate 21 slides away from the cover body 121, the slider is driven to move downward through the slope, and the downward movement of the slider drives the second driving rod 132 to rotate.

[0096] In an embodiment, the first transmission structure includes a first connecting rod 232 and a second connecting rod 233, the first end of the first connecting rod 232 is fixedly connected with the output shaft of the driving motor 231, the first end of the second connecting rod 233 is hingedly connected with the second end of the first connecting rod 232, and the second end of the second connecting rod 233 is hingedly connected with the sliding plate 21; the second transmission structure includes a third connecting rod 234, the first end of the third connecting rod 234 is fixedly connected with the output shaft of the driving motor 231 or the first end of the first connecting rod 232, and the second end of the third connecting rod 234 is provided with a pressing roller 235, the pressing wheel 24 is located above the cover body 121, and the pressing roller 235 is pressed above the second driving rod 132.

[0097] In this embodiment, when the driving motor 231 rotates in the first direction, the first connecting rod 232 and the third connecting rod 234 are driven to swing, the first connecting rod 232 drives the sliding plate 21 to slide away from the cover body 121 through the second connecting rod 233, the pressing wheel 24 gradually moves away from the cover body 121, at the same time, the pressing roller 235 on the third connecting rod 234 exerts downward pressure on the second driving rod 132 and rolls relative to the second driving rod 132, which drives the second driving rod 132 to rotate and the first driving rod 131 to rotate upward, thereby realizing the uncapping. When the driving motor 231 rotates in the second direction, the sliding plate 21 is driven to slide toward the cover body 121 through the first connecting rod 232 and the second connecting rod 233, the pressing wheel 24 moves and rotates relative to the cover body 121, thereby exerting pressure on the cover body 121, which drives the cover body 121 to rotate and the sealing plug 123 to be embedded into the body 122. The cover body 121 will press the first driving rod 131 during the rotation, so that the first driving rod 131 is simultaneously rotated until the cover body 121 is closed.

[0098] Specifically, in one embodiment, the first direction refers to the counterclockwise direction and the second direction refers to the clockwise direction.

[0099] In one embodiment, the contact position of the pressing roller 235 with the second driving rod 132 is close to the end of the second driving rod 132 away from the first driving rod 131.

[0100] In this embodiment, the pressing roller 235 can more easily exert pressure on the second driving rod 132 to make it rotate, and the second driving rod 132 rotates and forms a larger lever force through the hinged shaft connected with the hinged support 14, thereby driving the sealing plug 123 of the cover body 121 to be pulled out of the body 122.

[0101] In one embodiment, the third connecting rod 234 is integrated with the first connecting rod 232, and the third connecting rod 234 and the first connecting rod 232 form a V-shaped swing frame.

[0102] In this embodiment, the third connecting rod 234 is integrated with the first connecting rod 232, which reduces the number of parts and facilitates assembly. Since the third connecting rod 234 and the first connecting rod 232 form a V-shaped swing frame, the sliding plate 21 can be driven to slide through the second connecting rod 233, and the pressing roller 235 can exert pressure on the second driving rod 132 away from the hinged shaft, thereby ensuring that the second driving rod 132 can be pressed by the pressing roller 235.

[0103] In an alternative embodiment, the third connecting rod 234 can be directly fixedly connected with the output shaft of the driving motor 231.

[0104] In one embodiment, the driving motor 231 is provided with output shafts on both sides, and correspondingly, the first transmission structure is symmetrically provided with two groups.

[0105] In this embodiment, the first transmission structure is symmetrically provided with two groups of the first driving motor 231 and the second driving motor 232, and the two sides of the driving motor 231 are provided with the output shafts. The first transmission structure can more stably drive the sliding plate 21 to slide and the two second driving rods 132 to rotate simultaneously.

[0106] In one embodiment, the second driving rod 132 and the fixed frame are provided with the torsional spring 15. The torsional force of the torsional spring 15 can drive the second driving rod 132 to rotate to the preset position. When the cover 121 is opened, the second driving rod 132 is in the preset position.

[0107] In this embodiment, the third connecting rod 234 has a limited rotation range, and the compression roller 235 cannot always be in contact with the second driving rod 132. The torsional spring 15 is arranged between the second driving rod 132 and the fixed frame. When the sealing plug 123 is separated from the interference fit with the body 122, the torsional force of the torsional spring 15 can drive the second driving rod 132 to rotate to the preset position. The whole cover opening process does not need to be manually operated by the user.

[0108] In one embodiment, the torsional spring 15 is sleeved on the hinged shaft, the first end of the torsional spring 15 is fixed to the fixed frame, and the second end of the torsional spring 15 is fixed to the second driving rod 132.

[0109] In one embodiment, the preset position refers to the vertical position or the position close to the vertical position.

[0110] In one embodiment, the fixed frame includes the base 3, the support table 4, and the pipe frame 11. The support table 4 is fixed to the base 3, and the second driving assembly is arranged on the support table 4. The pipe frame 11 is provided with a plurality of placement positions for placing the cover-connected container 12. The pipe frame 11 is arranged on the base 3 and detachably connected with the base 3.

[0111] In this embodiment, the pipe frame 11 is detachably connected with the base 3, so that the pipe frame 11 can be replaced, and the cover opening of different models of the cover-connected container 12 can be realized.

[0112] In one embodiment, the base 3 is provided with the positioning portion 31, and the pipe frame 11 is detachably connected with the positioning portion 31.

[0113] In this embodiment, the positioning portion 31 can position the installation of the pipe frame 11, so that the pipe frame 11 can be fixed.

[0114] In one embodiment, the positioning portion 31 is a boss.

[0115] In one embodiment, the placement position is provided with an opening on the side away from the support table 4.

[0116] In this embodiment, the opening is arranged on the side of the placing position away from the support table 4, and one side of the continuous cover container 12 is exposed outside through the opening. The magnet is tightly attached to the body 122 by using the external moving device to prevent the loss of magnetic force, so as to adsorb the sample containing the magnetic beads.

[0117] In one embodiment, the tube rack 11 is provided with a heater and a temperature sensor, and the opening and closing device further comprises a controller which is in communication connection with the heater and the temperature sensor.

[0118] In this embodiment, the heater, the temperature sensor and the controller are arranged to control the temperature of the tube rack 11.

[0119] In one embodiment, the fixing frame further comprises a hinged support 14, the second driving rod 132 is hinged to the hinged support 14, the hinged support 14 is fixedly connected to the tube rack 11, and the connection position of the hinged support 14 and the tube rack 11 is adjustable.

[0120] In this embodiment, the connection position of the hinged support 14 and the tube rack 11 is adjustable, so that the continuous cover container 12 of different models can be applied.

[0121] In one embodiment, the hinged support 14 can slide relative to the tube rack 11, and after the position is adjusted, the hinged support 14 is fixed to the tube rack 11 by a threaded fastener.

[0122] In this embodiment, when the cover is opened, the driving motor 231 drives the two first connecting rods 232 to move the two second connecting rods 233, and the two second connecting rods 233 drive the sliding plate 21 to move along the slide rail 22 away from the cover body 121. At the same time, the third connecting rod 234 drives the second driving rod 132 to rotate through the pressing roller 235. When the pressing wheel 24 moves away from the cover body 121, the second driving rod 132 rotates and forms a larger lever force through the hinged shaft connected with the hinged support 14, so as to drive the sealing plug 123 of the cover body 121 to be pulled out of the body 122. After being pulled out, the interference force is released, and under the action of the torsional spring 15, the second driving rod 132 rotates to the preset position to complete the opening of the cover. After the cover is opened, the solution can be added to the body 122 or the solution in the body 122 can be sucked. When the cover is closed, the driving motor 231 drives the two first connecting rods 232 to move the two second connecting rods 233, and the two second connecting rods 233 drive the sliding plate 21 to move along the slide rail 22 to approach the cover body 121. When the pressing wheel 24 moves above the cover body 121, a row of cover bodies 121 are pressed and rotated by the pressing wheel 24, so that the sealing plug 123 on the cover body 121 is reinserted into the body 122. In the process of pressing the cover body 121, the pressing wheel 24 drives the first driving rod 131 to rotate, and the first driving rod 131 and the second driving rod 132 are re-rotated to the position before the cover is opened, waiting to be opened again.

[0123] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the present application.

Claims

1. A lid opening and closing device characterized by comprising: The application relates to a container opening device. The container opening device comprises: a fixing frame adapted to place a row of cover containers (12), the cover containers (12) comprising a body (122) and a cover (121), the cover (121) being provided with a sealing plug (123) adapted to be in interference fit with the inner wall of the body (122), a first side of the cover (121) being hinged to the body (122), and a second side of the cover (121) protruding from the outer wall of the body (122); a first driving assembly comprising a first driving rod (131) adapted to be arranged below the second side of the cover (121) of the row of cover containers (12) and abutting against the cover (121), the first driving rod (131) being driven to rotate upward, thereby driving each cover (121) to open; 2. The lid opening and closing device according to claim 1, characterized by a second driving assembly comprising a pressing wheel (24) movably arranged above the fixing frame, the pressing wheel (24) being adapted to drive the cover (121) to rotate and embed the sealing plug (123) into the body (122) when moving above each cover (121) towards the second side.

3. The lid opening and closing device according to claim 1, characterized by The second driving assembly comprises a power mechanism, the power mechanism driving the pressing wheel (24) to move away from above each cover (121) and driving the first driving rod (131) to rotate upward in linkage.

4. The lid opening and closing device according to claim 3, characterized in that The first driving assembly further comprises a second driving rod (132) connected to the first driving rod (131), the second driving rod (132) being hinged to the fixing frame through a hinge shaft, the axis of the hinge shaft being collinear with the rotation axis of the cover (121).

5. A lid opening and closing device according to claim 3 or 4, characterized in that Two second driving rods (132) are arranged, and the two second driving rods (132) are connected to the first driving rod (131) in a U shape.

6. The lid opening and closing device according to claim 5, characterized in that The second driving assembly comprises a sliding plate (21) slidingly matched with the fixing frame, and the pressing wheel (24) is rotatably arranged on the sliding plate (21).

7. The lid opening and closing device according to claim 6, characterized in that The second driving assembly further comprises a power mechanism for driving the sliding plate (21) to slide.

8. The lid opening and closing device according to claim 7, characterized by The power mechanism comprises a driving motor (231) and a first transmission structure connected between the output shaft of the driving motor (231) and the sliding plate (21), the driving motor (231) being capable of driving the sliding plate (21) to slide in a direction away from the cover (121) through the first transmission structure when rotating in a first direction, and the driving motor (231) being capable of driving the sliding plate (21) to slide in a direction close to the cover (121) through the first transmission structure when rotating in a second direction. The first transmission structure comprises: a first connecting rod (232), a first end of the first connecting rod (232) being fixedly connected to the output shaft of the driving motor (231); a second connecting rod (233), a first end of the second connecting rod (233) being hinged to a second end of the first connecting rod (232), and a second end of the second connecting rod (233) being hinged to the sliding plate (21).

9. The lid opening and closing device according to claim 6, characterized by When the power mechanism drives the sliding plate (21) to slide away from the cover (121), the second driving rod (132) is driven to rotate by the second transmission structure, and the first driving rod (131) is driven to rotate upward.

10. The lid opening and closing device according to claim 9, characterized in that, The power mechanism comprises a driving motor (231) and a first transmission structure connected between an output shaft of the driving motor (231) and the sliding plate (21). When the driving motor (231) rotates in a first direction, the sliding plate (21) can be driven to slide away from the cover (121) by the first transmission structure. When the driving motor (231) rotates in a second direction, the sliding plate (21) can be driven to slide toward the cover (121) by the first transmission structure. When the driving motor (231) rotates in the first direction, the second driving rod (132) can be driven to rotate and the first driving rod (131) can be driven to rotate upward.

11. The lid opening and closing device according to claim 10, characterized by The first transmission structure comprises a first connecting rod (232) and a second connecting rod (233). The first end of the first connecting rod (232) is fixedly connected with the output shaft of the driving motor (231). The first end of the second connecting rod (233) is hingedly connected with the second end of the first connecting rod (232). The second end of the second connecting rod (233) is hingedly connected with the sliding plate (21). The second transmission structure comprises a third connecting rod (234). The first end of the third connecting rod (234) is fixedly connected with the output shaft of the driving motor (231) or the first end of the first connecting rod (232). The second end of the third connecting rod (234) is provided with a pressing roller (235). When the pressing roller (24) is located above the cover (121), the pressing roller (235) abuts against the second driving rod (132).

12. The lid opening and closing device according to claim 11, characterized by The contact position of the pressing roller (235) and the second driving rod (132) is close to the end of the second driving rod (132) away from the first driving rod (131).

13. The lid opening and closing device according to claim 11, characterized by The third connecting rod (234) is integrated with the first connecting rod (232), and the third connecting rod (234) and the first connecting rod (232) form a V-shaped swing frame.

14. The lid opening and closing device according to any one of claims 7, 8, 10 to 13, characterized in that, The driving motor (231) is provided with the output shaft on both sides, and correspondingly, the first transmission structure is symmetrically provided with two groups.

15. The lid opening and closing device according to any one of claims 3, 4, 6 to 13, characterized in that, A torsional spring (15) is arranged between the second driving rod (132) and the fixed frame. The torsional force of the torsional spring (15) can drive the second driving rod (132) to rotate to a preset position. In the preset position, the cover (121) is opened.

16. The lid opening and closing device according to any one of claims 3, 4, 6 to 13, characterized in that, The fixed frame comprises: a base (3); a support table (4) fixed to the base (3), and the second driving assembly is arranged on the support table (4); a pipe frame (11) provided with a plurality of placing positions for placing the cover container (12), and the pipe frame (11) is arranged on the base (3) and detachably connected with the base (3).

17. The lid opening and closing device according to claim 16, characterized in that The base (3) is provided with a positioning portion (31), and the pipe frame (11) is detachably connected with the positioning portion (31).

18. The lid opening and closing device according to claim 16, characterized by The placing position is provided with an opening on the side away from the support table (4).

19. The lid opening and closing device according to claim 16, characterized by The pipe rack (11) is provided with a heater and a temperature sensor, and the opening and closing cover device further comprises a controller in communication connection with the heater and the temperature sensor.

20. The lid opening and closing device according to claim 16, characterized by The fixing frame further comprises a hinged support (14), the second driving rod (132) is hinged with the hinged support (14), the hinged support (14) is fixedly connected with the pipe rack (11), and the connection position of the hinged support (14) and the pipe rack (11) is adjustable.

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