Multi-station cover opening and closing device and using method thereof

Abstract

The invention relates to the technical field of medical instruments, and discloses a multi-station cover opening and closing device and a use method thereof, a plurality of rotary mounting positions on a first linkage block correspond to a plurality of test tubes, and cover opening and closing operation is performed simultaneously, so that the efficiency is improved; each rotary mounting position is rotationally provided with a rotary seat, the rotary seats are connected with rotary idle wheels, the multiple rotary idle wheels are in series transmission through a rotary motor, and clamping jaw modules fixed to the rotary seats rotate synchronously; the opening and closing motor drives the opening and closing transmission piece to enable the second linkage block to reciprocate in the vertical direction, the control rods are connected to the second linkage block in parallel, and the control rods can slide relative to the clamping jaw base to enable the clamping jaw assembly to be opened or closed in the horizontal direction. The rotating motion and the opening and closing motion of the multiple clamping jaw modules can be achieved only through two power sources of the rotating motor and the opening and closing motor. Action in the horizontal direction is not needed, movement mechanisms are effectively reduced, and the working efficiency is further improved; the structure is simple and compact, the overall occupied size is small, and the manufacturing cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multi-position switch cover device and a use method thereof. Background Art

[0002] Currently in the field of in vitro diagnostic technology, some samples and reagents often need to scan codes, open lids, transfer liquids, close lids, and other operations before formal testing. Currently, the automated lid opening and closing mechanism can only open and close the lid of one sample tube or reagent tube at a time. When multiple sample tubes or reagent tubes need to be opened and closed, 1 to 2 moving axes need to be added to the automated lid opening and closing mechanism, which results in a larger overall size of the automated lid opening and closing mechanism and low working efficiency.

[0003] There is a solution in the prior art for dealing with multiple sample tubes or reagent tubes, in which multiple switch cover modules are installed in parallel for multiple workstations, and each switch cover module is equipped with power sources in multiple directions. In this way, the volume of the automatic switch cover mechanism is still large. Although it solves the problem of opening and closing the covers of multiple sample tubes or reagent tubes at the same time, the manufacturing cost is relatively high.

[0004] Therefore, a multi-position switch cover device is urgently needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a multi-position switch cover device and a method of using the same, which can handle multiple reagent tubes at one time, perform cover opening and cover closing operations synchronously, and effectively improve operating efficiency; and has a simple and compact structure, a small overall volume, and a low manufacturing cost.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Multi-position switch cover device, comprising:

[0008] Multiple gripper modules;

[0009] A rotating module, the rotating module includes a first linkage block, a rotating seat, a rotating idler wheel and a rotating motor. The first linkage block is provided with a plurality of rotating mounting positions, and each of the clamping jaw modules is arranged in a one-to-one correspondence with the rotating mounting position; each of the rotating mounting positions is rotatably provided with a rotating seat, and each of the rotating seats is fixedly provided with a rotating idler wheel. The plurality of rotating idler wheels are sequentially connected in transmission, the rotating motor is transmitted with any one of the rotating idler wheels, and the rotating motor is fixedly connected with the first linkage block.

[0010] As an optional technical solution of the multi-position switch cover device, the multi-position switch cover device also includes:

[0011] An opening and closing module, the opening and closing module includes a second linkage block, an opening and closing transmission member and an opening and closing motor, the opening and closing motor is fixedly connected to the first linkage block, the opening and closing transmission member is transmission-connected to the second linkage block, the second linkage block is transmission-connected to a plurality of the plurality of clamping claw modules, the driving end of the opening and closing motor is fixedly connected to the opening and closing transmission member, and can drive the opening and closing transmission member to rotate so that the second linkage block reciprocates in a vertical direction, so that the plurality of the clamping claw modules are opened or closed.

[0012] As an optional technical solution for the multi-position switch cover device, each of the clamping jaw modules includes a clamping jaw seat, a clamping jaw assembly and a control rod. The clamping jaw seat is coaxially arranged with the rotating idler wheel, and the clamping jaw seat is fixedly connected with the rotating seat so that the clamping jaw assembly rotates around the axis. The control rod can be slidably arranged on the clamping jaw seat in the vertical direction so that the clamping jaw assembly can be opened or closed in the horizontal direction; multiple control rods are arranged on the second linkage block.

[0013] As an optional technical solution for the multi-position switch cover device, the clamping jaw assembly includes two groups of connecting rods arranged opposite to each other, each group of connecting rods includes a first driven rod, a second driven rod and a third driven rod, the clamping jaw seat, the third driven rod, the second driven rod and the first driven rod are rotatably connected in sequence, the third driven rod and the first driven rod have the same length and are relatively parallel, and the second driven rod is vertically arranged; a gear is arranged at one end of the first driven rod away from the second driven rod, and racks are arranged on opposite sides of one end of the control rod away from the second linkage block, and the racks are meshed with the gears in a one-to-one correspondence, and a clamping jaw head is arranged at one end of the second driven rod away from the third driven rod, when the control rod moves vertically downward, the end of the first driven rod away from the gear swings upward until the first driven rod is in a horizontal state, and the two clamping jaw heads are relatively far away; when the control rod moves vertically upward, the end of the first driven rod away from the gear swings downward, and the two clamping jaw heads are relatively close.

[0014] As an optional technical solution for the multi-position switch cover device, the opening and closing module also includes a bearing, which is arranged in a one-to-one correspondence with the control rod, the outer ring of the bearing is embedded in the second linkage block, the inner ring of the bearing is sleeved outside the control rod, and the inner ring and outer ring of the bearing are coaxial and relatively rotatably connected.

[0015] As an optional technical solution for the multi-position switch cover device, the opening and closing module also includes an elastic member, which is arranged in the vertical direction, one end of the elastic member is connected to the inner ring of the bearing, and the other end of the elastic member is connected to the control rod.

[0016] As an optional technical solution for the multi-position switch cover device, the opening and closing module further includes a first linear guide rail, the first linear guide rail is fixed on the first linkage block along the vertical direction, and the second linkage block is slidably disposed on the first linear guide rail.

[0017] As an optional technical solution for the multi-position switch cover device, the driving end of the rotating motor and any one of the rotating idler wheels are driven by a synchronous belt;

[0018] And / or, the driving end of the opening and closing motor and the opening and closing transmission member are driven by a synchronous belt.

[0019] As an optional technical solution for the multi-station switch cover device, the rotating module further includes a plurality of synchronous belts, and each of the rotating idler wheels is respectively sleeved with the adjacent rotating idler wheels in pairs in one of the synchronous belts for transmission.

[0020] As an optional technical solution for the multi-position switch cover device, the multi-position switch cover device also includes a lifting module, which includes a mounting plate, a lifting motor, and a lifting transmission member. The mounting plate is used to fix the multi-position switch cover device to the medical device; the lifting motor is fixed to the mounting plate, the lifting transmission member is transmission-connected to the first linkage block, and the driving end of the lifting motor is fixedly connected to the lifting transmission member, and can drive the lifting transmission member to rotate so that the first linkage block can reciprocate in the vertical direction.

[0021] The method for using the multi-station switch cover device is applied to any of the multi-station switch cover devices described above, and the method for using the multi-station switch cover device includes:

[0022] Step 1: Start the opening and closing motor so that the opening and closing transmission member drives the second linkage block to move vertically downward, and at the same time the control rod drives the clamping jaw assembly to open;

[0023] Step 2: Align the clamping jaw assembly with the test tube cover one by one, and move the clamping jaw assembly from the initial height to the same height as the test tube cover; control the opening and closing motor to reverse so that the opening and closing transmission member drives the second linkage block to move vertically upward, and the control rod drives the clamping jaw assembly to close until the clamping jaw assembly clamps the test tube cover, and turns off the opening and closing motor;

[0024] Step 3, start the rotating motor, drive the rotating idler wheel to rotate in the direction of opening the cover and drive the rotating seat and the clamping claw module to rotate, and at the same time move the first linkage block upward until the test tube cover is separated from the test tube, and turn off the rotating motor;

[0025] Step 4: Continue to move the first linkage block upward until the distance between the test tube cover and the test tube is sufficient to complete the pipetting operation;

[0026] Step 5: After the pipetting operation is completed, move the first linkage block downward until the test tube cover contacts the test tube;

[0027] Step 6: Continue to move the first linkage block downward, and start the rotating motor at the same time, drive the rotating idler wheel to rotate in the direction of closing the cover and drive the rotating seat and the clamping claw module to rotate until the test tube cover and the test tube are tightened, and then turn off the rotating motor;

[0028] Step 7. Repeat step 1, and then move the first linkage block upwards to return to the initial height.

[0029] As an optional technical solution for the use of the multi-position switch cover device, in step two, before turning off the opening and closing motor, when the control rod drives the jaw assembly to close until the jaw assembly clamps the test tube cover, continue to drive the second linkage block to move vertically upward for a certain distance until the jaw assembly clamps the test tube cover.

[0030] Beneficial effects of the present invention:

[0031] The multi-station cover switch device provided by the present invention comprises a rotating module, an opening and closing module and a plurality of clamping claw modules. The test tube cover is turned and opened and closed by rotating and opening and closing the clamping claw modules. The rotating module comprises a first linkage block, a rotating seat, a rotating idler wheel and a rotating motor. The first linkage block is provided with a plurality of rotating mounting positions. The plurality of rotating mounting positions are arranged one by one corresponding to the plurality of test tubes on the test tube rack, and can handle a plurality of test tubes at one time and perform cover opening and cover closing operations together, thereby effectively improving the operation efficiency. Each rotating mounting position is rotatably provided with a rotating seat, and each rotating seat is fixedly provided with a rotating idler wheel. The plurality of rotating idler wheels are sequentially connected in transmission. After being connected in series, the synchronous transmission of the plurality of rotating idler wheels can be realized by transmitting the rotating motor with any rotating idler wheel. The clamping claw module The clamping module is arranged one by one in correspondence with the rotating installation position. Each clamping module includes a clamping seat, a clamping assembly and a control rod. The clamping seat is arranged coaxially with the rotating idler wheel. The clamping seat is fixedly connected to the rotating seat. The overall synchronous rotation of multiple clamping modules can be realized by only one rotating motor. The control rod can be slidably arranged on the clamping seat in the vertical direction to open or close the clamping assembly in the horizontal direction. The opening and closing module includes a second linkage block, an opening and closing transmission member and an opening and closing motor. Multiple control rods are arranged in parallel on the second linkage block. The opening and closing transmission member is connected to the second linkage block in a transmission manner. The driving end of the opening and closing motor is fixedly connected to the opening and closing transmission member, which can drive the opening and closing transmission member to rotate so that the second linkage block reciprocates in the vertical direction. The opening and closing of multiple clamping modules can be realized together by one opening and closing motor. The rotating motor and the opening and closing motor are both fixedly arranged on the first linkage block, and the overall rotation movement of the clamping module and the opening and closing movement of the clamping module do not affect each other.

[0032] The method for using the multi-station switch cover device provided by the present invention is applied to the above-mentioned multi-station switch cover device. When opening the cover, the clamping claw assembly needs to be fully opened first, and the opening and closing motor is started so that the opening and closing transmission member drives the second linkage block to move vertically downward, and the control rod drives the clamping claw assembly to open; the clamping claw assembly is matched with the test tube cover one by one, and the clamping claw assembly is moved downward from the initial height to the same height as the test tube cover; then the opening and closing motor is controlled to reverse so that the opening and closing transmission member drives the second linkage block to move vertically upward, and the control rod drives the clamping claw assembly to close until the clamping claw assembly clamps the test tube cover, and the opening and closing motor is turned off; then the rotating motor is started to drive the rotating idler to rotate in the direction of opening the cover and drive the rotating seat and the clamping claw module to rotate, and at the same time move the first linkage block upward, and the test tube cover rotates and rises until the test tube cover is completely separated from the test tube, and the rotating motor is turned off; the clamping claw assembly clamps the test tube cover and no longer rotates but continues to move the first linkage block upward until the distance between the test tube cover and the test tube can complete the pipetting operation. After the pipetting operation is completed, when closing the cover, move the first linkage block downward until the test tube cover held by the clamping claw assembly contacts the test tube; continue to move the first linkage block downward, and start the rotating motor at the same time, drive the rotating idler to rotate in the direction of closing the cover and drive the rotating seat and the clamping claw module to rotate, the test tube cover rotates and descends until the test tube cover and the test tube are tightened, and turn off the rotating motor; finally, start the opening and closing motor again, so that the opening and closing transmission member drives the second linkage block to move vertically downward, so that the control rod drives the clamping claw assembly to open completely, and move the first linkage block upward to return to the initial height. The overall mechanical structure of the multi-station switch cover device only needs two power sources, the rotating motor and the opening and closing motor, to respectively realize the overall rotation movement and opening and closing movement of multiple clamping claw modules; when opening and closing the covers of multiple test tubes, the multi-station switch cover device does not need to move in the horizontal direction, which effectively reduces the motion mechanism and further improves the work efficiency; at the same time, the structure is simple and compact, the overall volume occupies a small amount, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a multi-position switch cover device provided in a specific embodiment of the present invention;

[0034] Figure 2 It is a structural schematic diagram of a rotating module, an opening and closing module and a clamping claw module of a multi-position switch cover device provided in a specific embodiment of the present invention;

[0035] Figure 3 It is a partial cross-sectional view of a rotating module, an opening and closing module and a clamping claw module of a multi-position switch cover device provided in a specific embodiment of the present invention;

[0036] Figure 4 It is a structural schematic diagram of a clamping claw module of a multi-station switch cover device provided by a specific embodiment of the present invention in an open state;

[0037] Figure 5 It is a structural schematic diagram of a clamping claw module of a multi-station switch cover device provided by a specific embodiment of the present invention in a closing process;

[0038] Figure 6 It is a structural schematic diagram of a lifting module of a multi-position switch cover device provided in a specific embodiment of the present invention.

[0039] In the figure:

[0040] 100, rotating module; 101, first linkage block; 102, rotating seat; 103, rotating idler wheel; 104, rotating motor; 105, linkage fixing plate; 106, synchronous belt;

[0041] 200, a clamping jaw module; 201, a clamping jaw seat; 202, a clamping jaw assembly; 2020, a connecting rod; 2021, a first driven rod; 2022, a second driven rod; 2023, a third driven rod; 2024, a clamping jaw head; 203, a control rod;

[0042] 300, opening and closing module; 301, second linkage block; 302, opening and closing transmission member; 303, opening and closing motor; 304, bearing; 305, elastic member; 306, first linear guide rail;

[0043] 400, lifting module; 401, mounting plate; 402, lifting transmission member; 403, lifting motor; 404, guide shaft. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] like Figures 1 to 6 As shown, the present invention discloses a multi-position switch cover device including a rotating module 100, an opening and closing module 300 and a plurality of clamping claw modules 200. The rotation and opening and closing of the clamping claw module 200 are respectively controlled by the rotating module 100 and the opening and closing module 300 to realize the action of twisting and switching the test tube cover.

[0049] The rotating module 100 includes a linkage fixing plate 105, a first linkage block 101, a rotating seat 102, a rotating idler wheel 103 and a rotating motor 104. The first linkage block 101 is fixedly mounted on the linkage fixing plate 105, and a plurality of rotating mounting positions are arranged on the first linkage block 101. The plurality of rotating mounting positions correspond to a plurality of test tubes on the test tube rack, and can handle a plurality of test tubes at one time, and perform the cover opening and closing operations together, thereby effectively improving the operation efficiency. Each rotating mounting position is rotatably provided with a rotating seat 102, and each rotating seat 102 is fixedly provided with a rotating idler wheel 103. The plurality of rotating idler wheels 103 are sequentially connected in transmission, and after being connected in series, a rotating motor 104 is used to drive any of the rotating idler wheels 103, so that the synchronous transmission of the plurality of rotating idler wheels 103 can be realized.

[0050] The gripper modules 200 are arranged in one-to-one correspondence with the rotating installation positions, and the gripper modules 200 are installed at the bottom of the rotating module 100. Each gripper module 200 includes a gripper seat 201, a gripper assembly 202 and a control rod 203. The gripper seat 201 is coaxially arranged with the rotating idler wheel 103, and the gripper seat 201 is fixedly connected with the rotating seat 102. Only through the above-mentioned one rotating motor 104, the overall synchronous rotation of multiple gripper modules 200 can be achieved.

[0051] In order to control the opening and closing of the jaws of the jaw assembly 202, an opening and closing module 300 is also installed on the jaw module 200. The opening and closing module 300 includes a second linkage block 301, an opening and closing transmission member 302 and an opening and closing motor 303. Multiple jaw modules 200 have multiple control rods 203 that are all arranged in parallel on the second linkage block 301. The end of the control rod 203 away from the second linkage block 301 can be slidably arranged on the jaw seat 201 in the vertical direction to make the jaw assembly 202 open or close in the horizontal direction. The opening and closing transmission member 302 is transmission-connected to the second linkage block 301, and the driving end of the opening and closing motor 303 is fixedly connected to the opening and closing transmission member 302, which can drive the opening and closing transmission member 302 to rotate so that the second linkage block 301 can reciprocate in the vertical direction, thereby controlling the relative sliding of multiple control rods 203 and the corresponding clamping claw seats 201, changing the opening state or closing state of the clamping claw assembly 202, and the opening and closing of multiple clamping claw modules 200 can be achieved together through an opening and closing motor 303.

[0052] In this embodiment, the rotating motor 104 and the opening and closing motor 303 in the multi-station switch cover device are fixedly arranged on the linkage fixing plate 105, and the overall rotating movement of the clamping claw module 200 and the opening and closing movement of the clamping claw module 200 do not affect each other. The overall mechanical structure of the multi-station switch cover device only needs two power sources, the rotating motor 104 and the opening and closing motor 303, to respectively realize the overall rotating movement and the opening and closing movement of multiple clamping claw modules 200; when opening and closing the lids of multiple test tubes, the multi-station switch cover device does not need to move in the horizontal direction, which effectively reduces the motion mechanism and further improves the work efficiency; at the same time, the structure is simple and compact, the overall volume occupies a small amount, and the manufacturing cost is low.

[0053] Specific as Figure 3 As shown in , the clamping jaw module 200 and the rotating idler wheel 103 are fixed on the rotating seat 102. When the rotating idler wheel 103 rotates, the clamping jaw module 200 can rotate accordingly. There is a through hole in the middle of the rotating seat 102, and the control rod 203 can pass through the middle of the rotating seat 102. The clamping jaw assembly 202 includes two groups of connecting rods 2020 arranged opposite to each other, each group of connecting rods 2020 includes a first driven rod 2021, a second driven rod 2022 and a third driven rod 2023, the clamping jaw seat 201, the third driven rod 2023, the second driven rod 2022 and the first driven rod 2021 are rotatably connected in sequence, and the first driven rod 2021, the second driven rod 2022 and the third driven rod 2023 of the connecting rod 2020 form a four-bar structure with the control rod 203, a gear is provided at one end of the first driven rod 2021 away from the second driven rod 2022, and two symmetrical racks are respectively provided on opposite sides of one end of the control rod 203 away from the second linkage block 301, and the racks and the gears are meshed and transmitted one by one.

[0054] The third driven rod 2023 and the first driven rod 2021 have the same length and are relatively parallel. The second driven rod 2022 is always vertically arranged and kept parallel to the control rod 203 during movement. The end of the second driven rod 2022 away from the third driven rod 2023 is provided with a clamping claw head 2024. Figure 4 and Figure 5 As shown in, when the control rod 203 moves vertically downward, the end of the first driven rod 2021 away from the gear swings upward until the first driven rod 2021 is in a horizontal state, the second driven rod 2022 and the third driven rod 2023 rotate accordingly, and the two clamping claw heads 2024 are relatively far away from each other to open in parallel; when the second linkage block 301 moves upward, it drives the control rod 203 to move vertically upward, and the meshing gear is driven to rotate by the rack, and the end of the first driven rod 2021 away from the gear swings downward, and the two clamping claw heads 2024 are relatively close and gradually close. In the clamping claw module 200, the opening and closing of the clamping claw assembly 202 are parallel movements, and the clamping claw assembly 202 opens and closes in parallel, so that it can be used to clamp test tube covers of different diameters. For some sample tubes or reagent tubes, which are generally universal consumables, the use of the multi-station switch cover device does not require special customization of sample tubes or reagent tubes and other consumables, and has strong universality and adaptability, further saving working costs and expanding the scope of application of the multi-station switch cover device.

[0055] In this embodiment, the opening and closing module 300 further includes a bearing 304, which is arranged between the control rod 203 and the second linkage block 301, and the bearing 304 is arranged one-to-one with the control rod 203, the outer ring of the bearing 304 is embedded in the second linkage block 301, and the inner ring of the bearing 304 is sleeved outside the control rod 203, and the inner ring and the outer ring of the bearing 304 are coaxial and relatively rotatably connected, so that the rotational movement of the clamping claw module 200 and the opening and closing movement of the clamping claw module 200 are independent of each other and do not affect each other.

[0056] Furthermore, the opening and closing module 300 further includes an elastic member 305, which is arranged in the vertical direction, one end of the elastic member 305 is connected to the inner ring of the bearing 304, and the other end of the elastic member 305 is connected to the control rod 203. The control rod 203 of the clamping jaw module 200 is connected to the second linkage block 301 through the elastic member 305, so that the clamping jaw module 200 and the second linkage block 301 can move up and down relatively.

[0057] After the clamping jaw assembly 202 closes and clamps the test tube cover, the second linkage block 301 continues to move upward, and the control rod 203 can only slightly move to make the clamping jaw assembly 202 clamp the test tube cover, and the elastic member 305 is compressed at the same time. By controlling the degree of upward movement of the second linkage block 301, the size and clamping force of the parallel closure of the clamping jaw assembly 202 can be controlled, so that test tube covers of different diameters can be clamped. Due to the presence of the elastic member 305, the differences in clamping different test tube covers of multiple identical clamping jaw modules 200 can be offset by the elastic member 305, and there is no unified requirement for multiple test tube specifications that are opened and closed at the same time. The multi-station open and close cover device has strong compatibility and adaptability, which further expands the scope of application. The elastic member 305 can be a compression spring or other elastomer.

[0058] Specific as Figure 2 As shown in the figure, the opening and closing module 300 also includes a first linear guide rail 306, which is fixed on the linkage fixing plate 105 along the vertical direction. The second linkage block 301 can be slidably arranged on the first linear guide rail 306 up and down, and the auxiliary opening and closing transmission member 302 jointly limits the movement of the second linkage block 301, thereby extending the service life of the multi-position switch cover device.

[0059] Exemplarily, the rotating module 100 further includes a plurality of synchronous belts 106, and each rotating idler wheel 103 is respectively sleeved in a synchronous belt 106 with adjacent rotating idler wheels 103 for transmission, that is, there is a rotating idler wheel 103 on each of the adjacent two sides of a rotating idler wheel 103, and two synchronous belts 106 are staggeredly arranged on the rotating idler wheel 103, and the two synchronous belts 106 are also sleeved on two rotating idler wheels 103 adjacent to the rotating idler wheel 103. Alternatively, only one large synchronous belt can be used to simultaneously drive all the rotating idler wheels 103, and simultaneously make multiple gripper modules 200 rotate.

[0060] In this embodiment, the driving end of the rotating motor 104 and any rotating idler wheel 103 are driven by the synchronous belt 106, so that the rotating seat 102 and the clamping claw module 200 rotate accordingly; the driving end of the opening and closing motor 303 can also be driven by the opening and closing transmission member 302 by the synchronous belt 106, thereby controlling the up and down movement of the second linkage block 301. The installation position of the rotating motor 104 or the opening and closing motor 303 can be reasonably changed by the synchronous belt to avoid interference with other structures, thereby saving the occupied space of the multi-station switch cover device.

[0061] Specific as Figure 6As shown in , the multi-station switch cover device also includes a lifting module 400, which includes a mounting plate 401, a lifting motor 403 and a lifting transmission member 402. The mounting plate 401 is used to fix the multi-station switch cover device to the in vitro diagnostic device; the lifting motor 403 is fixed on the mounting plate 401, and the lifting transmission member 402 is connected to the linkage fixing plate 105 in a transmission manner. The driving end of the lifting motor 403 is fixedly connected to the lifting transmission member 402, and can drive the lifting transmission member 402 to rotate so that the linkage fixing plate 105 reciprocates in the vertical direction, which is used to realize the overall up and down movement of the clamping claw module 200. The linkage fixing plate 105 is installed on the mounting plate 401 through an adapter block, and the lifting motor 403 controls the lifting transmission member 402 to rotate through a synchronous belt, thereby controlling the up and down movement of the adapter block and the linkage fixing plate 105, thereby realizing the up and down movement of the clamping claw module 200.

[0062] Exemplarily, both the lifting transmission member 402 and the opening and closing transmission member 302 may be screw rod assemblies or other transmission assemblies.

[0063] Similarly, the lifting module 400 also includes a second linear guide rail, which is fixed on the mounting plate 401 in the vertical direction, and the linkage fixing plate 105 can be slidably arranged on the second linear guide rail, and the auxiliary lifting transmission member 402 can jointly limit the movement of the linkage fixing plate 105, thereby extending the service life of the multi-station switch cover device. Alternatively, guide shafts 404 are arranged on both sides of the lifting transmission member 402, and three adapter blocks are arranged on the linkage fixing plate 105, which correspond to the lifting transmission member 402 and the guide shaft 404 respectively, and can slide and limit the linkage fixing plate 105 in the vertical direction, so that the movement of the multi-station switch cover device is more stable.

[0064] The present invention also discloses a method for using a multi-position switch cover device, which is applied to the multi-position switch cover device. The method for using the multi-position switch cover device includes:

[0065] Step 1: Start the opening and closing motor 303, so that the opening and closing transmission member 302 drives the second linkage block 301 to move vertically downward, and at the same time the control rod 203 drives the clamping jaw assembly 202 to open;

[0066] Step 2: Align the clamping jaw assembly 202 with the test tube cover one by one, and move the clamping jaw assembly 202 from the initial height to the same height as the test tube cover; control the opening and closing motor 303 to reverse so that the opening and closing transmission member 302 drives the second linkage block 301 to move vertically upward, and the control rod 203 drives the clamping jaw assembly 202 to close until the clamping jaw assembly 202 clamps the test tube cover, and turns off the opening and closing motor 303;

[0067] Step 3, start the rotating motor 104, drive the rotating idler wheel 103 to rotate in the cover opening direction and drive the rotating seat 102 and the clamping claw module 200 to rotate, and at the same time move the first linkage block 101 upward until the test tube cover is separated from the test tube, and turn off the rotating motor 104;

[0068] Step 4: Continue to move the first linkage block 101 upward until the distance between the test tube cover and the test tube is sufficient to complete the pipetting operation;

[0069] Step 5: After the pipetting operation is completed, the first linkage block 101 is moved downward until the test tube cover contacts the test tube;

[0070] Step 6: Continue to move the first linkage block 101 downward, and start the rotating motor 104 at the same time, drive the rotating idler wheel 103 to rotate in the direction of closing the cover and drive the rotating seat 102 and the clamping claw module 200 to rotate until the test tube cover and the test tube are tightened, and then turn off the rotating motor 104;

[0071] Step 7: Repeat step 1, and then move the first linkage block 101 upward to return to the initial height.

[0072] If the multi-station cover opening and closing device is continuously used to perform cover opening and closing and liquid transfer operations on the next group of test tubes, steps 2 to 7 may be repeated after step 7 is completed.

[0073] When opening the cover, firstly, the clamping jaw assembly 202 needs to be fully opened, and the opening and closing motor 303 is started, so that the opening and closing transmission member 302 drives the second linkage block 301 to move vertically downward, and at the same time, the control rod 203 drives the clamping jaw assembly 202 to open; the clamping jaw assembly 202 is matched with the test tube cover one by one, and the clamping jaw assembly 202 is moved downward from the initial height to the same height as the test tube cover; at this time, the test tube is fixed on the test tube rack and is also clamped to ensure that it is fixed and cannot move, and then the opening and closing motor 303 is controlled to reverse so that the opening and closing transmission member 302 drives the second linkage block 301 to move vertically upward, and the control rod 203 drives the clamping jaw assembly 202 to close until the clamping jaw assembly 202 clamps the test tube cover. In order to clamp the test tube cover more stably, the second linkage block 301 is continued to be driven to move vertically upward for a certain distance until the clamping jaw assembly 202 clamps the test tube cover, and the opening and closing motor 303 is turned off.

[0074] Then, the rotating motor 104 is started to drive the rotating idler wheel 103 to rotate in the direction of opening the cover and drive the rotating seat 102 and the clamping claw module 200 to rotate, and at the same time, the first linkage block 101 is moved upward, and the test tube cover rotates and rises at the same time until the test tube cover is completely separated from the test tube, and then the rotating motor 104 is turned off; the clamping claw assembly 202 clamps the test tube cover and no longer rotates but continues to move the first linkage block 101 upward until the distance between the test tube cover and the test tube can complete the pipetting operation.

[0075] After the pipetting operation is completed, when closing the cover, the first linkage block 101 is moved downward until the test tube cover clamped by the clamping jaw assembly 202 contacts the test tube; the first linkage block 101 continues to be moved downward, and the rotating motor 104 is started at the same time to drive the rotating idler wheel 103 to rotate in the direction of closing the cover and drive the rotating seat 102 and the clamping jaw module 200 to rotate, and the test tube cover rotates and descends until the test tube cover and the test tube are tightened, and the rotating motor 104 is turned off; finally, the opening and closing motor 303 is started again, so that the opening and closing transmission member 302 drives the second linkage block 301 to move vertically downward, so that the control rod 203 drives the clamping jaw assembly 202 to open completely, and moves the first linkage block 101 upward to return to the initial height.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A multi-position switch cover device, characterized in that: include: A plurality of gripper modules (200); A rotating module (100), the rotating module (100) comprising a first linkage block (101), a rotating seat (102), a rotating idler wheel (103) and a rotating motor (104); a plurality of rotating mounting positions are arranged on the first linkage block (101); each of the clamping jaw modules (200) is arranged in a one-to-one correspondence with the rotating mounting position; each of the rotating mounting positions is rotatably provided with a rotating seat (102); each of the rotating seats (102) is fixedly provided with a rotating idler wheel (103); a plurality of the rotating idler wheels (103) are sequentially connected in transmission; the rotating motor (104) is transmitted with any of the rotating idler wheels (103); and the rotating motor (104) is fixedly connected with the first linkage block (101).

2. The multi-position switch cover device according to claim 1, characterized in that: The multi-position switch cover device also includes: An opening and closing module (300), the opening and closing module (300) comprising a second linkage block (301), an opening and closing transmission member (302) and an opening and closing motor (303), the opening and closing motor (303) being fixedly connected to the first linkage block (101), the opening and closing transmission member (302) being transmission-connected to the second linkage block (301), the second linkage block (301) being transmission-connected to a plurality of the plurality of clamping jaw modules (200), the driving end of the opening and closing motor (303) being fixedly connected to the opening and closing transmission member (302), being capable of driving the opening and closing transmission member (302) to rotate so that the second linkage block (301) reciprocates in a vertical direction, so that the plurality of the clamping jaw modules (200) are opened or closed.

3. The multi-position switch cover device according to claim 2, characterized in that: Each of the clamping jaw modules (200) comprises a clamping jaw seat (201), a clamping jaw assembly (202) and a control rod (203); the clamping jaw seat (201) is coaxially arranged with the rotating idler wheel (103); the clamping jaw seat (201) is fixedly connected with the rotating seat (102) so that the clamping jaw assembly (202) rotates around the axis; the control rod (203) is slidably arranged on the clamping jaw seat (201) in a vertical direction so that the clamping jaw assembly (202) is opened or closed in a horizontal direction; and a plurality of control rods (203) are arranged on the second linkage block (301).

4. The multi-position switch cover device according to claim 3, characterized in that: The clamping jaw assembly (202) comprises two groups of connecting rods (2020) arranged opposite to each other, each group of connecting rods (2020) comprises a first driven rod (2021), a second driven rod (2022) and a third driven rod (2023); the clamping jaw seat (201), the third driven rod (2023), the second driven rod (2022) and the first driven rod (2021) are rotatably connected in sequence; the third driven rod (2023) and the first driven rod (2021) have the same length and are relatively parallel; the second driven rod (2022) is arranged vertically; a gear is arranged at one end of the first driven rod (2021) away from the second driven rod (2022); the control rod (203) Racks are provided on opposite sides of the end away from the second linkage block (301), and the racks are meshed with the gears in a one-to-one corresponding manner. A clamping claw head (2024) is provided on the end of the second driven rod (2022) away from the third driven rod (2023). When the control rod (203) moves vertically downward, the end of the first driven rod (2021) away from the gear swings upward until the first driven rod (2021) is in a horizontal state, and the two clamping claw heads (2024) are relatively separated; when the control rod (203) moves vertically upward, the end of the first driven rod (2021) away from the gear swings downward, and the two clamping claw heads (2024) are relatively close.

5. The multi-position switch cover device according to claim 3, characterized in that: The opening and closing module (300) further comprises a bearing (304), wherein the bearing (304) and the control rod (203) are arranged in a one-to-one correspondence, wherein the outer ring of the bearing (304) is embedded in the second linkage block (301), and the inner ring of the bearing (304) is sleeved outside the control rod (203), and the inner ring and the outer ring of the bearing (304) are coaxial and relatively rotatably connected.

6. The multi-position switch cover device according to claim 5, characterized in that: The opening and closing module (300) further comprises an elastic member (305), wherein the elastic member (305) is arranged in a vertical direction, one end of the elastic member (305) is connected to the inner ring of the bearing (304), and the other end of the elastic member (305) is connected to the control rod (203).

7. The multi-position switch cover device according to claim 2, characterized in that: The opening and closing module (300) further comprises a first linear guide rail (306), wherein the first linear guide rail (306) is fixed on the first linkage block (101) in a vertical direction, and the second linkage block (301) is slidably disposed on the first linear guide rail (306).

8. The multi-position switch cover device according to claim 2, characterized in that: The driving end of the rotating motor (104) and any one of the rotating idler wheels (103) are driven via a synchronous belt (106); And / or, the driving end of the opening and closing motor (303) and the opening and closing transmission member (302) are driven by a synchronous belt (106).

9. The multi-position switch cover device according to claim 1, characterized in that: The rotating module (100) further comprises a plurality of synchronous belts (106), and each of the rotating idler wheels (103) is respectively sleeved with adjacent rotating idler wheels (103) in pairs in one of the synchronous belts (106) for transmission.

10. The multi-position switch cover device according to claim 1, characterized in that: The multi-position switch cover device further comprises a lifting module (400), wherein the lifting module (400) comprises a mounting plate (401), a lifting motor (403), and a lifting transmission member (402); the mounting plate (401) is used to fix the multi-position switch cover device to the medical device; the lifting motor (403) is fixed to the mounting plate (401); the lifting transmission member (402) is drivingly connected to the first linkage block (101); the driving end of the lifting motor (403) is fixedly connected to the lifting transmission member (402) and can drive the lifting transmission member (402) to rotate so that the first linkage block (101) reciprocates in a vertical direction.

11. A method for using a multi-position switch cover device, characterized in that: Applicable to the multi-position switch cover device according to any one of claims 1 to 10, the method for using the multi-position switch cover device comprises: Step 1: Start the opening and closing motor (303), so that the opening and closing transmission member (302) drives the second linkage block (301) to move vertically downward, and at the same time the control rod (203) drives the clamping jaw assembly (202) to open; Step 2: Align the clamping jaw assembly (202) with the test tube cover one by one, and move the clamping jaw assembly (202) from the initial height to the same height as the test tube cover; control the opening and closing motor (303) to reverse so that the opening and closing transmission member (302) drives the second linkage block (301) to move vertically upward, and the control rod (203) drives the clamping jaw assembly (202) to close until the clamping jaw assembly (202) clamps the test tube cover, and turns off the opening and closing motor (303); Step 3, start the rotating motor (104), drive the rotating idler wheel (103) to rotate in the cover opening direction and drive the rotating seat (102) and the clamping claw module (200) to rotate, and at the same time move the first linkage block (101) upward until the test tube cover is separated from the test tube, and turn off the rotating motor (104); Step 4: Continue to move the first linkage block (101) upward until the distance between the test tube cover and the test tube is sufficient to complete the pipetting operation; Step 5: After the pipetting operation is completed, the first linkage block (101) is moved downward until the test tube cover contacts the test tube; Step 6: Continue to move the first linkage block (101) downward, and start the rotating motor (104) at the same time, drive the rotating idler wheel (103) to rotate in the direction of closing the cover and drive the rotating seat (102) and the clamping claw module (200) to rotate until the test tube cover is tightened with the test tube, and turn off the rotating motor (104); Step 7: Repeat step 1, and then move the first linkage block (101) upwards to return to the initial height.

12. The method for using the multi-position switch cover device according to claim 11, characterized in that: Step 2: Before turning off the opening and closing motor (303), when the control rod (203) drives the clamping jaw assembly (202) to close until the clamping jaw assembly (202) clamps the test tube cover, the second linkage block (301) continues to be driven to move vertically upward for a certain distance until the clamping jaw assembly (202) clamps the test tube cover.

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