Cover opening and closing device

Abstract

The invention 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 containing a row of cover-connected containers, the cover-connected 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 invention relates to the technical field of opening and closing covers, and in particular to an opening and closing cover device. Background Art

[0002] Flip-top test tubes, especially EP tubes (first used on a large scale by Eppendorf, commonly known in the industry) commonly used in the field of life sciences, are widely used in the storage and processing of samples because of their resistance to centrifugal forces, ease of use, and stable chemical properties.

[0003] In the laboratory, some samples need to be stored with the lid closed due to air humidity or light protection requirements, and the lid is opened when the sample needs to be taken. The sealing requirements of the flip-top test tube are relatively strict. The test tube cap is equipped with a plug that matches the test tube body. The plug usually has an interference fit with the inner wall of the test tube body opening to improve the sealing. This will cause the flip-top test tube to require a large force to open. When the interference fit state is broken, the test tube cap can be easily opened with less force.

[0004] In the related art, when an experimenter needs to open the lids of multiple flip-top test tubes in a row of test tube racks, they usually open the lids one by one, and when closing the lids, they also usually close the lids one by one, so the efficiency of opening and closing the lids is low. Summary of the invention

[0005] In view of this, the present invention provides a cover opening and closing device to solve the problem of low cover opening and closing efficiency in the related art.

[0006] The present invention provides a cover opening and closing device, comprising:

[0007] A fixing frame, adapted to place a row of connected lid containers, wherein the connected lid containers include a body and a lid, wherein the lid is provided with a sealing plug, wherein the sealing plug is adapted to be interference fit with the inner wall of the body, wherein a first side of the lid is hinged to the body, and a second side of the lid protrudes from an outer wall of the body;

[0008] A first driving assembly includes a first driving rod, the first driving rod is adapted to be disposed below the second side of the cover of a row of connected-cover containers and abut against the cover, and when the first driving rod is driven to rotate upward, each of the covers is driven to open;

[0009] The second driving assembly includes a pressure wheel, which is movably arranged above the fixing frame. When the pressure wheel moves above each of the cover bodies toward the second side, it is suitable for driving the cover body to rotate and allowing the sealing plug to be embedded in the body.

[0010] Beneficial effects: A row of connected lid containers can be placed on the fixed frame. When the row of connected lid containers needs to be opened, the first driving rod is rotated upward, and the first driving rod is abutted against the cover body of the connected lid container. Therefore, the cover body can be pushed up, so that the sealing plug is separated from the interference fit with the main body, thereby opening the cover body. When the cover needs to be closed, the pressure wheel moves toward the second side above each cover body, exerts pressure on the cover body, drives the cover body to rotate and embeds the sealing plug into the main body, thereby sealing the cover body on the main body. Therefore, the opening and closing cover device can open and close the cover of a row of connected lid containers at the same time, and the opening and closing efficiency is high. In addition, the first driving rod can be abutted against the cover body of the connected lid container, and the two do not need to be fixedly connected together. Therefore, there is no need to adjust the structure of the existing connected lid container, and it can be applied to various connected lid containers.

[0011] In an optional embodiment, the second driving assembly includes a power mechanism, and when the power mechanism drives the pressure wheel to leave above each of the cover bodies, the power mechanism drives the first driving rod to rotate upward.

[0012] Beneficial effect: when the power mechanism drives the pressing wheel to leave the top of each cover body, the first driving rod is driven to rotate upward in linkage, and the cover can be opened and closed by a power mechanism, which has a simple structure, low cost and easy maintenance.

[0013] In an optional embodiment, the first driving assembly further includes a second driving rod connected to the first driving rod, the second driving rod is hinged to the fixing frame via a hinge shaft, and the axis of the hinge shaft is colinear with the rotation axis of the cover body.

[0014] Beneficial effect: by connecting the second drive rod with the first drive rod, the second drive rod and the fixed frame are hinged by the hinge shaft, so driving the second drive rod to rotate can drive the first drive rod to rotate. In addition, since the axis of the hinge shaft is collinear with the rotation axis of the cover body, it can be ensured that the first drive rod always keeps in contact with the cover body during the rotation of the cover body, thereby ensuring that when closing the cover, the pressure wheel moves toward the second side above each cover body, exerts pressure on the cover body, drives the cover body to rotate and embeds the sealing plug into the main body, and the cover body presses the first drive rod during the rotation process, causing the first drive rod to rotate at the same time until the cover body is in a closed state.

[0015] In an optional embodiment, two second driving rods are provided, and the two second driving rods are connected to the first driving rod to form a U shape.

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

[0017] In an optional embodiment, the second driving assembly includes a slide plate, the slide plate is slidably matched with the fixing frame, and the pressure wheel is rotatably disposed on the slide plate.

[0018] Beneficial effect: By setting a slide plate, the slide plate and the fixed frame slide together, and the slide plate drives the pressing wheel to move together when sliding, the moving direction of the pressing wheel can be ensured, and then the cover body can be closed. When closing the cover, the pressing wheel rolls and moves relative to the cover body, and there is rolling friction between the pressing wheel and the cover body, which is not easy to cause deformation of the cover body.

[0019] In an optional embodiment, the second driving assembly further includes a power mechanism, and the power mechanism is used to drive the slide plate to slide.

[0020] Beneficial effect: By setting up a power mechanism, there is no need to manually drive the slide plate, which is conducive to realizing automatic opening and closing of the cover.

[0021] In an optional embodiment, the power mechanism includes a driving motor and a first transmission structure connected between the output shaft of the driving motor and the skateboard. When the driving motor rotates in a first direction, the skateboard can be driven to slide in a direction away from the cover body through the first transmission structure. When the driving motor rotates in a second direction, the skateboard can be driven to slide in a direction close to the cover body through the first transmission structure.

[0022] Beneficial effect: when the driving motor rotates along the first direction, the first transmission structure drives the slide plate to slide in the direction away from the cover body, which can avoid the pressure wheel pressing on the cover body and making it impossible to open the cover. When the driving motor rotates along the second direction, the first transmission structure drives the slide plate to slide in the direction close to the cover body, so that the pressure wheel can gradually press on the cover body and drive the cover body to rotate, thereby closing the cover.

[0023] In an optional implementation, the first transmission structure includes:

[0024] A first connecting rod, a first end of which is fixedly connected to an output shaft of the driving motor;

[0025] A second connecting rod, wherein a first end of the second connecting rod is hinged to a second end of the first connecting rod, and a second end of the second connecting rod is hinged to the slide plate.

[0026] Beneficial effect: When the driving motor rotates, it drives the first connecting rod to swing, and then drives the slide plate to slide through the second connecting rod.

[0027] In an optional embodiment, when the power mechanism drives the slide plate to slide in a direction away from the cover body, the second driving rod is driven to rotate through the second transmission structure and the first driving rod is caused to rotate upward.

[0028] Beneficial effect: when the power mechanism drives the slide plate to slide in the direction away from the cover body, the second transmission structure drives the second drive rod to rotate and causes the first drive rod to rotate upward. The slide plate sliding in the direction away from the cover body will drive the pressure wheel to leave the cover body. At the same time, the power mechanism drives the second drive rod to rotate and causes the first drive rod to rotate upward through the second transmission structure, thereby realizing opening the cover. The power mechanism can also drive the slide plate to slide in the direction close to the cover body to realize closing the cover. Therefore, one power mechanism can realize opening and closing the cover. The structure is simple, the cost is low, and it is easy to maintain.

[0029] In an optional embodiment, the power mechanism includes a driving motor and a first transmission structure connected between the output shaft of the driving motor and the skateboard. When the driving motor rotates in a first direction, the skateboard can be driven to slide in a direction away from the cover body through the first transmission structure. When the driving motor rotates in a second direction, the skateboard can be driven to slide in a direction close to the cover body through the first transmission structure. When the driving motor rotates in the first direction, the second driving rod can be driven to rotate and the first driving rod can be rotated upward.

[0030] Beneficial effect: When the cover needs to be opened, the driving motor rotates in the first direction, and the sliding plate is driven to slide in the direction away from the cover body through the first transmission structure, and the pressure wheel gradually leaves the cover body. At the same time, the second driving rod is driven to rotate and the first driving rod is rotated upward through the second transmission structure to open the cover. When the cover needs to be closed, the driving motor rotates in the second direction, and the sliding plate is driven to slide in the direction close to the cover body through the first transmission structure. The pressure wheel moves and rotates relative to the cover body, applies pressure to the cover body, drives the cover body to rotate and embeds the sealing plug into the body, and the cover body presses the first driving rod during the rotation process, causing the first driving rod to rotate at the same time until the cover is closed. The cover can be opened and closed by a driving motor, which has a simple structure, low cost, and is easy to maintain.

[0031] In an optional embodiment, the first transmission structure includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is fixedly connected to the output shaft of the driving motor, the first end of the second connecting rod is hinged to the second end of the first connecting rod, and the second end of the second connecting rod is hinged to the slide plate;

[0032] The second transmission structure includes a third connecting rod, a first end of the third connecting rod is fixedly connected to the output shaft of the driving motor or the first end of the first connecting rod, and a pressure roller is provided at the second end of the third connecting rod. When the pressure roller is located above the cover body, the pressure roller presses against the top of 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. When the first connecting rod swings, the slide plate is pulled by the second connecting rod to slide in the direction away from the cover body, and the pressure wheel gradually leaves the cover body. At the same time, the pressure roller on the third connecting rod applies downward pressure to the second driving rod and rolls relative to the second driving rod, driving the second driving rod to rotate and the first driving rod to rotate upward, so as to open the cover. When the driving motor rotates in the second direction, the slide plate is driven by the first connecting rod and the second connecting rod to slide in the direction close to the cover body, and the pressure wheel moves and rotates relative to the cover body, exerting pressure on the cover body, driving the cover body to rotate and embedding the sealing plug into the body. During the rotation process, the cover body presses the first driving rod, causing the first driving rod to rotate at the same time until the cover body is closed.

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

[0035] Beneficial effect: The pressure roller can more easily apply pressure to the second driving rod to make it rotate, and the second driving rod rotates and forms a larger lever force through the hinge shaft connected to the hinge bracket, thereby driving the sealing plug of the cover body to be pulled out from the main body.

[0036] In an optional embodiment, the third connecting rod is integrally connected to the first connecting rod, and the third connecting rod and the first connecting rod form a V-shaped swing frame.

[0037] Beneficial effects: The third connecting rod is connected to the first connecting rod as a whole, which reduces the number of parts and facilitates assembly. Since the third connecting rod and the first connecting rod form a V-shaped swing frame, the slide plate can be driven to slide by the second connecting rod, and the position where the pressure roller applies force to the second driving rod can be kept away from the hinge shaft, ensuring that the pressure roller can apply pressure to the second driving rod.

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

[0039] Beneficial effect: Since output shafts are provided on both sides of the driving motor, the first transmission structure is symmetrically provided with two groups, which can more smoothly drive the slide plate to slide and the two second driving rods to rotate simultaneously.

[0040] In an optional embodiment, a torsion spring is provided between the second driving rod and the fixing frame, and the torsion force of the torsion spring can cause the second driving rod to rotate to a preset position, and when the second driving rod is in the preset position, the cover is opened.

[0041] Beneficial effect: Since the rotation range of the third connecting rod is limited, the pressure roller cannot always maintain contact with the second driving rod. By providing a torsion spring between the second driving rod and the fixed frame, when the sealing plug is disengaged from the interference fit with the body, the torsion force of the torsion spring can drive the second driving rod to rotate to a preset position, and the entire opening process does not require manual operation by the user.

[0042] In an optional embodiment, the fixing frame includes:

[0043] abutment;

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

[0045] The tube rack is provided with a plurality of placement positions, wherein the placement positions are used to place the lidded containers, and the tube rack is arranged on the base and is detachably connected to the base.

[0046] Beneficial effects: Since the pipe rack is detachably connected to the base, the pipe rack is easy to replace and can be used to open the lids of containers with lids of different models.

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

[0048] Beneficial effect: The positioning part can position the installation of the pipe rack, which is convenient for fixing the pipe rack.

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

[0050] Beneficial effect: Since an opening is provided on the side away from the support platform, one side of the container with a lid can be exposed to the outside through the opening, and an external moving device can be used to press the magnet against the body to prevent magnetic force loss, so as to adsorb and process samples containing magnetic beads.

[0051] In an optional embodiment, the pipe rack is provided with a heater and a temperature sensor, and the opening and closing cover device further includes a controller, and the controller is communicatively connected with the heater and the temperature sensor.

[0052] Beneficial effect: By setting a heater, a temperature sensor and a controller, the temperature of the pipe rack can be controlled.

[0053] In an optional embodiment, the fixing frame further includes an articulated bracket, the second driving rod is articulated to the articulated bracket, the articulated bracket is fixedly connected to the pipe rack, and the connection position between the articulated bracket and the pipe rack is adjustable.

[0054] Beneficial effect: By setting a heater, a temperature sensor and a controller, the temperature of the pipe rack can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 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 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 body;

[0058] Figure 3 A schematic diagram of an opening and closing cover device according to an embodiment of the present invention when the cover body 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. Driving 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] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0063] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

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

[0065] Among them, the fixed frame is suitable for placing a row of connected lid containers 12, the connected lid containers 12 include a main body 122 and a cover body 121, the cover body 121 is provided with a sealing plug 123, the sealing plug 123 is suitable for interference fit with the inner wall of the main body 122, the first side of the cover body 121 is hinged to the main body 122, and the second side of the cover body 121 protrudes from the outer wall of the main body 122; the first driving component includes a first driving rod 131, the first driving rod 131 is suitable for being arranged below the second side of the cover body 121 of a row of connected lid containers 12 and abutting against the cover body 121, when the first driving rod 131 is driven to rotate upward, each cover body 121 is driven to open; the second driving component includes a pressure wheel 24, the pressure wheel 24 is movably arranged above the fixed frame, and when the pressure wheel 24 moves toward the second side above each cover body 121, it is suitable for driving the cover body 121 to rotate and allowing the sealing plug 123 to embed into the main body 122.

[0066] In this embodiment, a row of connected lid containers 12 can be placed on the fixed frame. When the row of connected lid containers 12 needs to be opened, the first driving rod 131 is rotated upward, and the first driving rod 131 is abutted against the cover body 121 of the connected lid container 12, so that the cover body 121 can be pushed upward, so that the sealing plug 123 is separated from the interference fit with the body 122, thereby opening the cover body 121. When it is necessary to close the cover, the pressure wheel 24 moves toward the second side above each cover body 121, applies pressure to the cover body 121, drives the cover body 121 to rotate, and makes the sealing plug 123 embed into the body 122, so as to achieve sealing of the cover body 121 on the body 122. Therefore, the cover opening and closing device can open and close the cover of a row of connected lid containers 12 at the same time, and the cover opening and closing efficiency is high. In addition, the first driving rod 131 only needs to abut against the cover body 121 of the cover container 12, and the two do not need to be fixedly connected together. Therefore, there is no need to adjust the structure of the existing cover container 12, and it can be applied to various cover containers 12.

[0067] Specifically, the cover 121 of the lidded container 12 has a closed state and an open state. When the cover 121 of a row of lidded containers 12 is in the closed state, the pressing wheel 24 is located on the cover 121, exerting downward pressure on the cover 121, and the first driving rod 131 is located below the second side of the cover 121. When the cover needs to be opened, the pressing wheel 24 moves away from the second side and no longer presses the cover 121, and the first driving rod 131 rotates upward, and the first driving rod 131 pushes the cover 121 upward, so that the sealing plug 123 is separated from the interference fit with the body 122, thereby opening the cover 121 to the open state. When the cover needs to be closed, the pressure wheel 24 moves toward the second side above each cover body 121, exerting pressure on the cover body 121, driving the cover body 121 to rotate and embedding the sealing plug 123 into the main body 122. During the rotation, the cover body 121 presses the first driving rod 131, causing the first driving rod 131 to rotate simultaneously until the cover body 121 is in a closed state.

[0068] Specifically in one embodiment, the lid-connected container 12 can be a lid-connected tube, a lid-connected bottle, etc.

[0069] In one embodiment, the second driving assembly includes a power mechanism. When the power mechanism drives the pressing wheel 24 to leave the top of each cover body 121, the first driving rod 131 is driven to rotate upward.

[0070] In this embodiment, when the power mechanism drives the pressure wheel 24 to leave the top of each cover body, it drives the first driving rod 131 to rotate upward. The cover can be opened and closed by a power mechanism, which has a simple structure, low cost and easy maintenance.

[0071] In one embodiment, the first driving assembly further includes a second driving rod 132 connected to the first driving rod 131 . The second driving rod 132 is hinged to the fixing frame via a hinge shaft, and the axis of the hinge shaft is colinear with the rotation axis of the cover body 121 .

[0072] In this embodiment, the second driving rod 132 is connected to the first driving rod 131, and the second driving rod 132 is hinged to the fixed frame through the hinge shaft. Therefore, driving the second driving rod 132 to rotate can drive the first driving rod 131 to rotate. In addition, since the axis of the hinge shaft is colinear with the rotation axis of the cover body 121, it can be ensured that the first driving rod 131 always keeps in contact with the cover body 121 during the rotation of the cover body 121, thereby ensuring that when the cover is closed, the pressure wheel 24 applies pressure to the cover body 121 when moving toward the second side above each cover body 121, driving the cover body 121 to rotate and embedding the sealing plug 123 into the main body 122. During the rotation of the cover body 121, the first driving rod 131 will be pressed, causing the first driving rod 131 to rotate at the same time until the cover body 121 is in a closed state.

[0073] Specifically in one embodiment, the second driving rod 132 is connected to the end of the first driving rod 131 .

[0074] In an embodiment not shown in the figures, the second driving rod 132 may not be connected to the end of the first driving rod 131 , but may be connected to a position of the first driving rod 131 close to the end.

[0075] In one embodiment, two second driving rods 132 are provided, and the two second driving rods 132 are connected to the first driving rod 131 to form a U shape.

[0076] In this embodiment, since two second driving rods 132 are provided, the two second driving rods 132 are connected to the first driving rod 131 to form a U shape, and when the two second driving rods 132 rotate, the first driving rod 131 can be driven to rotate more smoothly.

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

[0078] In one embodiment, the second driving assembly includes a slide plate 21 , the slide plate 21 is slidably matched with the fixing frame, and the pressure wheel 24 is rotatably disposed on the slide plate 21 .

[0079] In this embodiment, the slide plate 21 is provided, and the slide plate 21 is slidably matched with the fixing frame. When the slide plate 21 slides, the pressing wheel 24 is driven to move together, so that the moving direction of the pressing wheel 24 can be ensured, and then the cover 121 can be closed. When closing the cover, the pressing wheel 24 rolls and moves relative to the cover 121, and there is rolling friction between the pressing wheel 24 and the cover 121, which is not easy to cause deformation of the cover 121.

[0080] Specifically in one embodiment, a plurality of pressure wheels 24 are arranged side by side, and each pressure wheel 24 is hinged to the end of the slide plate 21 via a rolling shaft.

[0081] In an embodiment not shown in the figures, only one pressing wheel 24 may be provided, and one pressing wheel 24 covers a plurality of containers 12 with lids.

[0082] Specifically in one embodiment, a slide rail 22 is provided on the top of the fixing frame, and the slide plate 21 is slidably matched with the slide rail 22 .

[0083] In one embodiment, the second driving assembly further includes a power mechanism, and the power mechanism is used to drive the slide plate 21 to slide.

[0084] In this embodiment, by providing a power mechanism, there is no need to manually drive the slide plate 21, which is conducive to realizing automatic opening and closing of the cover.

[0085] In one embodiment, the power mechanism includes a driving motor 231 and a first transmission structure connected between the output shaft of the driving motor 231 and the skateboard 21. When the driving motor 231 rotates along a first direction, the skateboard 21 can be driven to slide in a direction away from the cover body 121 through the first transmission structure. When the driving motor 231 rotates along a second direction, the skateboard 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 along the first direction, the first transmission structure drives the slide plate 21 to slide in a direction away from the cover body 121, which can prevent the pressure wheel 24 from pressing on the cover body 121 and making it impossible to open the cover. When the driving motor 231 rotates along the second direction, the first transmission structure drives the slide plate 21 to slide in a direction close to the cover body 121, so that the pressure wheel 24 can gradually press on the cover body 121 and drive the cover body 121 to rotate, thereby closing the cover.

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

[0088] In one 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 to the output shaft of the driving motor 231; the first end of the second connecting rod 233 is hinged to the second end of the first connecting rod 232, and the second end of the second connecting rod 233 is hinged to the slide plate 21.

[0089] In this embodiment, when the driving motor 231 rotates, it drives the first connecting rod 232 to swing, and then drives the slide plate 21 to slide through the second connecting rod 233 .

[0090] In an embodiment not shown in the figure, the first transmission structure may include a gear and a rack, the gear is fixedly connected to the output shaft of the drive motor 231 , and the rack is meshed with the gear and fixedly connected to the slide plate 21 .

[0091] In one embodiment, when the power mechanism drives the slide plate 21 to slide in a direction away from the cover body 121 , the second transmission structure drives the second driving rod 132 to rotate and causes the first driving rod 131 to rotate upward.

[0092] In this embodiment, when the power mechanism drives the slide plate 21 to slide in the direction away from the cover body 121, the second transmission structure drives the second drive rod 132 to rotate and causes the first drive rod 131 to rotate upward. The slide plate 21 sliding in the direction away from the cover body 121 will drive the pressure wheel 24 to leave the cover body 121. At the same time, the power mechanism drives the second drive rod 132 to rotate and causes the first drive rod 131 to rotate upward through the second transmission structure, thereby realizing opening the cover. The power mechanism can also drive the slide plate 21 to slide in the direction close to the cover body 121 to realize closing the cover. Therefore, one power mechanism can realize opening and closing the cover, with a simple structure, low cost, and easy maintenance.

[0093] In one embodiment, the power mechanism includes a driving motor 231 and a first transmission structure connected between the output shaft of the driving motor 231 and the skateboard 21. When the driving motor 231 rotates along a first direction, the skateboard 21 can be driven to slide in a direction away from the cover body 121 through the first transmission structure. When the driving motor 231 rotates along a second direction, the skateboard 21 can be driven to slide in a direction close to the cover body 121 through the first transmission structure. When the driving motor 231 rotates along the first direction, it can drive the second driving rod 132 to rotate and make the first driving rod 131 rotate upward.

[0094] In this embodiment, when the cover needs to be opened, the driving motor 231 rotates in the first direction, and the first transmission structure drives the slide plate 21 to slide in the direction away from the cover body 121, and the pressure wheel 24 gradually leaves the cover body 121. At the same time, the second transmission structure drives the second driving rod 132 to rotate and the first driving rod 131 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, and the first transmission structure drives the slide plate 21 to slide in the direction close to the cover body 121, and the pressure wheel 24 moves and rotates relative to the cover body 121, exerting pressure on the cover body 121, driving the cover body 121 to rotate and embed the sealing plug 123 into the body 122. The cover body 121 presses the first driving rod 131 during the rotation process, so that the first driving rod 131 rotates at the same time until the cover body 121 is closed. The cover can be opened and closed by a driving motor 231, which has a simple structure, low cost, and is easy to maintain.

[0095] In an embodiment not shown in the figure, when the power mechanism includes a cylinder, the cylinder drives the slide plate 21 to slide, and the second transmission structure can be a slider. The slider and the slide plate 21 cooperate with each other through an inclined surface. When the slide plate 21 slides in a direction away from the cover body 121, the slider is driven downward by the inclined surface, and the downward movement of the slider causes the second drive rod 132 to rotate.

[0096] In one 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 to the output shaft of the driving motor 231, the first end of the second connecting rod 233 is hinged to the second end of the first connecting rod 232, and the second end of the second connecting rod 233 is hinged to the slide plate 21; the second transmission structure includes a third connecting rod 234, the first end of the third connecting rod 234 is fixedly connected to 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 pressure roller 235, and when the pressure wheel 24 is located above the cover body 121, the pressure roller 235 is pressed against the top of the second driving rod 132.

[0097] In this embodiment, when the driving motor 231 rotates in the first direction, it drives the first connecting rod 232 and the third connecting rod 234 to swing. When the first connecting rod 232 swings, it pulls the slide plate 21 to slide in the direction away from the cover body 121 through the second connecting rod 233, and the pressure wheel 24 gradually leaves the cover body 121. At the same time, the pressure roller 235 on the third connecting rod 234 applies downward pressure to the second driving rod 132 and rolls relative to the second driving rod 132, driving the second driving rod 132 to rotate and causing the first driving rod 131 to rotate upward, thereby opening the cover. When the driving motor 231 rotates in the second direction, the slide plate 21 is driven to slide in the direction close to the cover body 121 through the first connecting rod 232 and the second connecting rod 233, and the pressure wheel 24 moves and rotates relative to the cover body 121, exerting pressure on the cover body 121, driving the cover body 121 to rotate and embed the sealing plug 123 into the main body 122. During the rotation process, the cover body 121 will press the first driving rod 131, causing the first driving rod 131 to rotate at the same time until the cover body 121 is closed.

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

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

[0100] In this embodiment, the pressure roller 235 can more easily apply pressure to the second driving rod 132 to rotate it. The second driving rod 132 rotates and forms a larger lever force through the hinge shaft connected to the hinge bracket 14, thereby driving the sealing plug 123 of the cover body 121 to be pulled out from the main body 122.

[0101] In one embodiment, the third link 234 is connected to the first link 232 as a whole, and the third link 234 and the first link 232 form a V-shaped swing frame.

[0102] In this embodiment, the third connecting rod 234 is connected to the first connecting rod 232 as a whole, 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 slide plate 21 can be driven to slide by the second connecting rod 233, and the position where the pressure roller 235 applies force to the second driving rod 132 can be kept away from the hinge shaft, ensuring that the pressure roller 235 can apply pressure to the second driving rod 132.

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

[0104] In one embodiment, output shafts are disposed on both sides of the driving motor 231 , and correspondingly, two groups of first transmission structures are symmetrically disposed.

[0105] In this embodiment, since output shafts are provided on both sides of the driving motor 231, two groups of first transmission structures are symmetrically provided, which can more smoothly drive the slide plate 21 to slide and the two second driving rods 132 to rotate simultaneously.

[0106] In one embodiment, a torsion spring 15 is disposed between the second driving rod 132 and the fixing frame. The torsion force of the torsion spring 15 can cause the second driving rod 132 to rotate to a preset position. When the second driving rod 132 is in the preset position, the cover 121 is opened.

[0107] In this embodiment, since the rotation range of the third connecting rod 234 is limited, the pressure roller 235 cannot always maintain contact with the second driving rod 132. By providing a torsion spring 15 between the second driving rod 132 and the fixed frame, when the sealing plug 123 is disengaged from the interference fit with the main body 122, the torsion force of the torsion spring 15 can drive the second driving rod 132 to rotate to a preset position, and the entire opening process does not require manual operation by the user.

[0108] Specifically in one embodiment, the torsion spring 15 is sleeved on the hinge shaft, the first end of the torsion spring 15 is fixed to the fixing frame, and the second end of the torsion spring 15 is fixed to the second driving rod 132 .

[0109] Specifically in one embodiment, the preset position refers to a vertical position or a position close to a vertical position.

[0110] In one embodiment, the fixed frame includes a base 3, a support platform 4 and a pipe rack 11. The support platform 4 is fixed on the base 3, and the second driving assembly is arranged on the support platform 4; the pipe rack 11 has a plurality of placement positions, and the placement positions are used to place the container 12 with a lid, and the pipe rack 11 is arranged on the base 3 and is detachably connected to the base 3.

[0111] In this embodiment, since the pipe rack 11 is detachably connected to the base 3, the pipe rack 11 is easy to replace and can be used to open the lids of different types of connected lid containers 12.

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

[0113] In this embodiment, the positioning portion 31 can position the installation of the pipe rack 11 to facilitate the fixation of the pipe rack 11 .

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

[0115] In one embodiment, an opening is provided at a side of the placement position away from the support platform 4 .

[0116] In this embodiment, since an opening is provided on the side away from the support platform 4, one side of the lidded container 12 can be exposed to the outside through the opening, and an external moving device can be used to press the magnet against the main body 122 to prevent magnetic force loss, so as to adsorb and process samples containing magnetic beads.

[0117] In one embodiment, the pipe rack 11 is provided with a heater and a temperature sensor, and the cover opening and closing device further includes a controller, which is communicatively connected with the heater and the temperature sensor.

[0118] In this embodiment, the temperature of the pipe rack 11 can be controlled by providing a heater, a temperature sensor and a controller.

[0119] In one embodiment, the fixing frame further includes an articulated bracket 14, the second driving rod 132 is articulated with the articulated bracket 14, the articulated bracket 14 is fixedly connected to the pipe rack 11, and the connection position between the articulated bracket 14 and the pipe rack 11 is adjustable.

[0120] In this embodiment, since the connection position between the hinge bracket 14 and the pipe rack 11 is adjustable, different types of lidded containers 12 can be used.

[0121] Specifically, in one embodiment, the hinged bracket 14 can slide relative to the pipe rack 11 and is fixed to the pipe rack 11 by threaded fasteners after adjusting the position.

[0122] The opening and closing cover device provided in this embodiment, when opening the cover, the driving motor 231 drives the two second connecting rods 233 to move through the two first connecting rods 232, and the two second connecting rods 233 drive the slide plate 21 to move along the slide rail 22 in the direction 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 pressure roller 235. When the pressure roller 24 leaves the cover body 121, the second driving rod 132 rotates and forms a large lever force through the hinge shaft connected to the hinge bracket 14, thereby driving the sealing plug 123 of the cover body 121 to be pulled out from the main body 122. After pulling out, the interference force is released. Under the action of the torsion spring 15, the second driving rod 132 rotates to the preset position to complete the opening of the cover. After opening the cover, the solution can be added to the main body 122 or the solution in the main body 122 can be absorbed. When the box cover is opened, the driving motor 231 drives the two second connecting rods 233 to move through the two first connecting rods 232. The two second connecting rods 233 drive the slide plate 21 to move along the slide rail 22 towards the cover body 121. When the pressure wheel 24 moves to the top of the cover body 121, a row of cover bodies 121 are pressed and rotated by the pressure wheel 24, so that the sealing plugs 123 on the cover bodies 121 are reinserted into the main body 122. In the process of pressing the cover body 121, the pressure wheel 24 drives the first driving rod 131 to rotate, and the first driving rod 131 and the second driving rod 132 rotate back to the position before opening the cover, waiting to be opened again.

[0123] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A cover opening and closing device, characterized in that: include: A fixed frame, suitable for placing a row of connected lid containers (12), wherein the connected lid containers (12) comprise a body (122) and a cover body (121), wherein the cover body (121) is provided with a sealing plug (123), wherein the sealing plug (123) is suitable for interference fit with the inner wall of the body (122), wherein a first side of the cover body (121) is hinged to the body (122), and a second side of the cover body (121) protrudes from the outer wall of the body (122); A first driving assembly, comprising a first driving rod (131), wherein the first driving rod (131) is adapted to be disposed below the second side of the cover bodies (121) of a row of connected-cover containers (12) and to abut against the cover bodies (121), and when the first driving rod (131) is driven to rotate upward, each of the cover bodies (121) is driven to open; The second driving assembly comprises a pressure wheel (24), wherein the pressure wheel (24) is movably arranged above the fixing frame, and when the pressure wheel (24) moves above each of the cover bodies (121) toward the second side, it is suitable for driving the cover body (121) to rotate and allowing the sealing plug (123) to be embedded in the main body (122).

2. The cover opening and closing device according to claim 1, characterized in that: The second driving assembly comprises a power mechanism, and when the power mechanism drives the pressing wheel (24) to leave the top of each cover body (121), it drives the first driving rod (131) to rotate upward.

3. The cover opening and closing device according to claim 1, 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 via a hinge shaft, the axis of the hinge shaft being colinear with the rotation axis of the cover body (121).

4. The cover opening and closing device according to claim 3, characterized in that: Two second driving rods (132) are provided, and the two second driving rods (132) are connected to the first driving rod (131) to form a U shape.

5. The cover opening and closing device according to claim 3 or 4, characterized in that: The second driving assembly comprises a slide plate (21), the slide plate (21) is slidably matched with the fixing frame, and the pressing wheel (24) is rotatably arranged on the slide plate (21).

6. The cover opening and closing device according to claim 5, characterized in that: The second driving assembly further comprises a power mechanism, and the power mechanism is used for driving the slide plate (21) to slide.

7. The cover opening and closing device according to claim 6, 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 slide plate (21); when the driving motor (231) rotates in a first direction, the slide 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 slide plate (21) can be driven to slide in a direction close to the cover body (121) through the first transmission structure.

8. The cover opening and closing device according to claim 7, characterized in that: The first transmission structure comprises: A first connecting rod (232), wherein a first end of the first connecting rod (232) is fixedly connected to an output shaft of the driving motor (231); A second connecting rod (233), wherein the first end of the second connecting rod (233) is hinged to the second end of the first connecting rod (232), and the second end of the second connecting rod (233) is hinged to the slide plate (21).

9. The cover opening and closing device according to claim 6, characterized in that: When the power mechanism drives the slide plate (21) to slide in a direction away from the cover body (121), the second driving rod (132) is driven to rotate through the second transmission structure and the first driving rod (131) is caused to rotate upward.

10. The cover 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 slide plate (21); when the driving motor (231) rotates in a first direction, the slide plate (21) can be driven to slide in a direction away from the cover body (121) through the first transmission structure; when the driving motor (231) rotates in a second direction, the slide plate (21) can be driven to slide in a direction close to the cover body (121) through 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 rotated upward.

11. The cover opening and closing device according to claim 10, characterized in that: The first transmission structure comprises a first connecting rod (232) and a second connecting rod (233), wherein the first end of the first connecting rod (232) is fixedly connected to the output shaft of the driving motor (231), the first end of the second connecting rod (233) is hinged to the second end of the first connecting rod (232), and the second end of the second connecting rod (233) is hinged to the slide plate (21); The second transmission structure comprises a third connecting rod (234), the first end of the third connecting rod (234) is fixedly connected to 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 pressure roller (235), and when the pressure wheel (24) is located above the cover body (121), the pressure roller (235) is pressed against the top of the second driving rod (132).

12. The cover opening and closing device according to claim 11, characterized in that: The contact position between the pressure roller (235) and the second driving rod (132) is close to an end of the second driving rod (132) away from the first driving rod (131).

13. The cover opening and closing device according to claim 11, characterized in that: The third connecting rod (234) is connected to the first connecting rod (232) as a whole, and the third connecting rod (234) and the first connecting rod (232) form a V-shaped swing frame.

14. The cover opening and closing device according to any one of claims 7, 8, 10 to 13, characterized in that: The output shafts are provided on both sides of the driving motor (231), and correspondingly, two groups of the first transmission structures are symmetrically provided.

15. The cover opening and closing device according to any one of claims 3, 4, 6 to 13, characterized in that: A torsion spring (15) is provided between the second driving rod (132) and the fixing frame, and the torsion force of the torsion spring (15) can cause the second driving rod (132) to rotate to a preset position, and when the cover body (121) is in the preset position, the cover body (121) is opened.

16. The cover opening and closing device according to any one of claims 3, 4, 6 to 13, characterized in that: The fixing frame comprises: abutment(3); A support platform (4) is fixed on the base platform (3), and the second driving component is arranged on the support platform (4); The pipe rack (11) is provided with a plurality of placement positions, wherein the placement positions are used to place the lidded container (12); the pipe rack (11) is arranged on the base (3) and is detachably connected to the base (3).

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

18. The cover opening and closing device according to claim 16, characterized in that: The placement position is provided with an opening on a side away from the support platform (4).

19. The cover opening and closing device according to claim 16, characterized in that: The pipe rack (11) is provided with a heater and a temperature sensor, and the cover opening and closing device further comprises a controller, and the controller is communicatively connected with the heater and the temperature sensor.

20. The cover opening and closing device according to claim 16, characterized in that: The fixing frame also includes an articulated bracket (14), the second driving rod (132) is articulated with the articulated bracket (14), the articulated bracket (14) is fixedly connected to the pipe rack (11), and the connection position between the articulated bracket (14) and the pipe rack (11) is adjustable.

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