A blood collection tube rack transfer device

Abstract

The utility model discloses a kind of blood collection tube frame transfer devices, it includes bottom plate, bottom plate is erected with tube frame tray, the tube frame of blood collection tube is placed on tube frame tray, bottom plate, and located tube frame tray lower along X is sequentially installed with tube frame propulsion component, tube frame transfer component and tube frame push-out component;Tube frame propulsion component is pushed out along Y to the tube frame of detection, realize the automatic conveying of tube frame feeding, the tube frame of being pushed out is positioned and moves along X under the action of tube frame transfer component, in this process, the detection mechanism outside detects the blood collection tube in the tube frame located above tube frame transfer component, realize automatic cooperation detection mechanism unit displacement detection, complete the tube frame of detection is transferred to the buffer of tube frame push-out component along X by tube frame push-out component, its dynamic line design is reasonable, each mechanism is closely cooperated, greatly improve the automation level of blood collection tube detection.

Description

Technical Field

[0001] This utility model relates to the field of medical device automation technology, and in particular to a blood collection tube transfer device. Background Technology

[0002] Blood tests are used to diagnose a variety of diseases, making them a routine diagnostic tool in modern medicine. In existing hospitals, blood collection is typically conducted at blood collection stations. Blood collection tubes containing blood samples are then collected on a rack, which is then transported to the laboratory for testing. When performing blood tests on the collection tubes on the rack, medical staff usually need to remove each tube one by one for sampling and testing.

[0003] However, with the continuous increase in patients in hospitals, especially during peak medical periods, the number of blood samples requiring testing has also increased exponentially. Relying on manual sampling and testing is not only labor-intensive and inefficient, but also prone to errors such as missed tests. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a blood collection tube holder transfer device, which can realize automatic transport of blood collection tube holders, automatic positioning displacement per unit distance, and automatic output, thereby improving the automation level of blood collection tube detection.

[0005] The technical solution of this utility model is:

[0006] A blood collection tube rack transfer device, characterized in that it includes a base plate on which a tube rack tray is mounted;

[0007] On the base plate, and below the tube rack tray, a tube rack pushing assembly, a tube rack transferring assembly, and a tube rack pushing assembly are sequentially installed along the X direction; and on the tube rack tray above the tube rack transferring assembly, two actuation inlets are opened at each end along the X direction.

[0008] The drive end of the tube rack propulsion assembly is connected to a propulsion bracket, which is located above its corresponding tube rack tray area. Under the drive of the tube rack propulsion assembly, the propulsion bracket drives the tube rack on the tube rack tray to move along the Y direction.

[0009] The tube rack transfer assembly has a toothed drive end connected to it. The tube rack transfer assembly drives the toothed drive to move closer to or further away from the actuation inlet, thereby moving the tube rack on the tube rack tray along the X direction.

[0010] The drive end of the tube rack ejection assembly is connected to a push rod, which drives the tube rack on the third tray area to move along the Y direction.

[0011] Furthermore, the tube rack tray is dumbbell-shaped, comprising a first tray area, a second tray area, and a third tray area; the second tray area has two actuation inlets at each end along the X direction; the first tray area is located above the tube rack pushing assembly, the second tray area is located above the tube rack transferring assembly, and the third tray area is located above the tube rack ejection assembly;

[0012] The first and third pallet areas are both rectangular, with a length that matches the length of a tube rack and a width that is greater than the width of a tube rack; the second pallet area is a long rectangle, with its length and width matching the length and width of a tube rack.

[0013] Furthermore, the propulsion bracket includes a strip-shaped bracket base plate, which is arranged parallel to the X direction. Each end of the bracket base plate is rotatably connected to a propulsion block by a limiting member. The bracket base plate is located below the first tray area, and the front end of each propulsion block is located above the first tray area. The two front ends of the two propulsion blocks located above the first tray area form a clamping arm, and the tube frame moves along the Y direction under the clamping arm.

[0014] Furthermore, each of the aforementioned push blocks is similar to a teardrop shape, with one pointed end as the front end and an oblong hole on its tail end. Two circular limiting holes are also provided on the tail end in front of the oblong hole. The three are arranged in a similar triangular layout. The limiting member is installed in the oblong hole and the circular limiting hole to limit the rotation angle of each push block.

[0015] Furthermore, the limiting component includes two limiting plug bolts, a screw, and a torsion spring;

[0016] The waist-shaped hole and the circular limiting hole near the inner side cover the bracket base plate. The two limiting plug bolts pass through the waist-shaped hole and the circular limiting hole in sequence and stop in the bracket base plate, so that the push block is rotatably connected to the bracket base plate.

[0017] Another circular limiting hole is located outside the bracket base plate, and the screw is fixed inside the circular limiting hole; the torsion spring is sleeved on a limiting plug bolt in the inner circular limiting hole, and the two ends of the torsion spring are located on the outer side of the screw respectively.

[0018] Furthermore, the tube rack transfer assembly includes a crank connecting plate vertically connected to the base plate. A driven crank is rotatably connected to each end of the crank connecting plate along the X-direction on the side facing the second tray area. A driving crank is rotatably connected between the two driven cranks. A strip-shaped pawl connecting rod is rotatably connected to both driven cranks and the driving crank. A pawl protrudes upwards from each end of the pawl connecting rod along its length. The position and size of the pawl are compatible with the position and size of the actuation inlet.

[0019] After the drive end of the rotary drive motor passes through the crank connecting plate, it is driven to the active crank. The rotary drive motor drives the active crank to rotate around its motor shaft, so as to drive the two paddle teeth to move closer to or away from their corresponding paddle entry.

[0020] Furthermore, the tube rack ejection assembly includes an ejection linear guide rail and a second synchronous wheel assembly mounted parallel to each other on the base plate along the Y direction. A fixed belt slider and a push rod slider are slidably connected in sequence on the ejection linear guide rail, and the push rod slider is located at the front end of the fixed belt slider.

[0021] A timing belt fixing block is fixedly connected to the fixing belt slider, and the timing belt fixing block is connected to a section of the timing belt in the second timing pulley assembly. A push rod fixing block is fixedly connected to the push rod slider, and a push rod is connected to the push rod fixing block.

[0022] The rotary ejection drive motor is mounted on the base plate, and its drive end is connected to a synchronous pulley in the second synchronous pulley assembly.

[0023] Furthermore, the synchronous belt fixing block has a slider through hole parallel to the Y direction. One end of the floating plug screw is fixed to the push rod fixing block, and the other end is slidably connected to the slider through hole. The compression spring is sleeved outside the floating plug screw and located inside the slider through hole. When the compression spring is in an undeformed state, the fixed belt slider and the push rod slider are in a mutually close state.

[0024] Furthermore, the push rod includes a vertically arranged handle, the top surface of which extends horizontally toward the third tray area and then extends vertically upward to form a push rod surface. The handle is connected to the push rod fixing block and is located outside the third tray area.

[0025] Furthermore, each tube rack placed on the tube rack tray is a long strip with several tube compartments spaced apart at its upper end. On the bottom surface of its lower end, there is a downward-facing slot corresponding to the position of each tube compartment. The size of the slot is suitable for the size of the toggle inlet.

[0026] The beneficial technical effects of this utility model are:

[0027] 1. This utility model is designed with a tube rack tray. The tube rack containing blood collection tubes is placed on the tube rack tray. Under the tube rack tray, a tube rack pushing component, a tube rack transferring component, and a tube rack ejecting component are arranged in sequence. The tube rack pushing component ejects the tube rack to be tested along the Y direction, realizing automatic feeding of the tube rack. The ejected tube rack is positioned and moved along the X direction under the action of the tube rack transferring component. During this process, an external detection mechanism detects the blood collection tubes in the tube rack located above the tube rack transferring component, realizing automatic unit displacement detection of the detection mechanism. The tube rack that has completed the detection is transferred along the X direction by the tube rack ejecting component to the tube rack ejecting component for buffering. Its movement design is reasonable and the cooperation of each mechanism is close, which greatly improves the automation level of blood collection tube detection.

[0028] 2. The toothed connecting rod, driven crank, driving crank, and crank connecting plate in the tube rack transfer assembly of this utility model form a parallel double crank mechanism. Under the drive of the rotary motion drive motor, the parallel double crank mechanism drives the toothed connecting rod to make periodic movements around its motor shaft. Each cycle of movement can move the tube rack a fixed distance, that is, move the distance of the bottom area of ​​a blood collection tube. In conjunction with the external detection mechanism, it can realize the precise sampling and detection of individual blood collection tubes in the tube rack.

[0029] 3. The tube rack tray of this utility model is dumbbell-shaped, that is, the first tray area and the third tray area can store multiple tube racks, which facilitates the loading and unloading of tube racks. The second tray area is designed to allow a single tube rack to pass through, further ensuring the stability of the tube rack during automatic movement.

[0030] 4. The two ends of the push support of this utility model are respectively connected to a push block by a limiting member, so that while the clamping tube rack moves along the Y direction, the two push blocks can rotate in a direction, so that the position of the tube rack on the first tray area can be flexibly adjusted, thus taking into account the flexibility of the detection sequence. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0032] Figure 2 This is a schematic diagram of the present invention after the pipe rack has been removed;

[0033] Figure 3 This is a schematic diagram of the pipe rack propulsion assembly of this utility model;

[0034] Figure 4 yes Figure 3 Another perspective illustration;

[0035] Figure 5 yes Figure 4 Enlarged schematic diagram of the push block and limit component in the middle:

[0036] Figure 6 This is a schematic diagram of the push block of this utility model;

[0037] Figure 7 This is a schematic diagram of the pipe rack transfer assembly of this utility model;

[0038] Figure 8 yes Figure 7 Schematic diagram after removing the tooth extraction linkage;

[0039] Figure 9 This is a schematic diagram of the tube rack ejection assembly of this utility model;

[0040] Figure 10 yes Figure 9 Another angle diagram;

[0041] Figure 11 yes Figure 10 A sectional view;

[0042] Figure 12 This is a schematic diagram of the pipe rack of this utility model;

[0043] Figure 13 yes Figure 12 Another angle diagram;

[0044] Figure 14 This is a top view of the present invention.

[0045] in:

[0046] 000, Blood collection tube; 100, Base plate; 101, Guide rail support plate;

[0047] 200. Pipe rack propulsion assembly; 201. Propulsion bracket; 2011. Bracket base plate; 2012. Stepped surface; 202. Propulsion linear guide rail; 203. First synchronous pulley assembly; 2031. Driving pulley; 2032. Driven pulley; 2033. Synchronous belt; 204. Propulsion rotary motor; 205. Propulsion lever; 2051. Waist-shaped hole; 2052. Circular limiting hole; 206. Torsion spring; 207. Screw; 208. Limiting plug bolt; 209. Bracket limiting strip; 210. Limiting photoelectric sensor;

[0048] 300. Tube rack transfer assembly; 301. Crank connecting plate; 302. Driven crank; 303. Driving crank; 304. Pulley connecting rod; 3041. Pulley; 305. Rotary movement drive motor;

[0049] 400. Pipe rack ejection assembly; 401. Push rod; 4011. Rod handle; 4012. Push rod face; 402. Second synchronous pulley assembly; 403. Ejection linear guide rail; 404. Fixed belt slider; 4041. Synchronous belt fixing block; 405. Push rod slider; 4051. Push rod fixing block; 406. Floating plug screw; 407. Compression spring; 408. Rotary ejection drive motor; 4091. Warning photoelectric sensor switch; 4092. Fixed block limit bar; 4093. Positioning photoelectric sensor switch;

[0050] 500, Pipe rack tray; 5001, Guide edge; 501, First tray area; 502, Second tray area; 5021, Actuation entrance; 5022, Pressing edge; 5023, Through-beam sensor;

[0051] 503, Third pallet area; 600, Pipe rack; 6001, Guide groove; 6002, Pipe rack stepped surface; 601, Pipe compartment; 602, Groove opening; 603, Viewing hole; 700, Pipe rack sensor. Detailed Implementation

[0052] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0053] like Figures 1-14 As shown, this utility model provides a blood collection tube rack transfer device, which includes a base plate 100. A tube rack pushing assembly 200, a tube rack transfer assembly 300, and a tube rack pushing assembly 400 are sequentially mounted on the base plate 100 along the X direction. A tube rack tray 500 for placing tube racks 600 is mounted on the base plate 100. This utility model is used in conjunction with a detection mechanism (not shown), which is located on the front side of the base plate 100 along the Y direction.

[0054] The pipe rack tray 500 is dumbbell-shaped and includes a first tray area 501, a second tray area 502, and a third tray area 503 along its length. The first tray area 501 and the third tray area 503 are both large rectangles, and their lengths are suitable for the length of a pipe rack 600, so that multiple pipe racks 600 can be placed. The first tray area 501 and the third tray area 503 are provided with side guards on all four sides. The first tray area 501 and the third tray area 503 are folded horizontally along one side of the Y-direction towards their central axis to form a guide edge 5001. When the pipe rack 600 is placed on the first tray area 501 or the third tray area 503 along the X-direction, the guide edge 5001 can be locked and slidably placed in the guide groove 6001 on one side of the pipe rack 600 to ensure the stable sliding of the pipe rack 600. The second tray area 502 is a long rectangle, the length and width of which are the same as the length and width of a tube rack, that is, it can only accommodate one tube rack 600 for placement and passage. On the second tray area 502, at both ends along the X direction, that is, at the junction with the first tray area 501 and at the junction with the third tray area 503, there is a toggle inlet 5021. The outer side of the second tray area 502 along the X direction is provided with a pressing edge 5022 that is folded towards its central axis. The inner side along the X direction is provided with an inner side guard. The two ends of the inner side guard along the X direction are designed as sloping surfaces to facilitate the transition of the tube rack 600 from the first tray area 501 to the second tray area 502 and from the second tray area 502 to the third tray area 503.

[0055] The first tray area 501 is located above the tube rack pushing assembly 200, the second tray area 502 is located above the tube rack transfer assembly 300, and the third tray area 503 is located above the tube rack ejection assembly 400.

[0056] Furthermore, pipe rack sensors 700 are provided at both the front and rear sides of the first pallet area 501 along the X direction to monitor whether there are pipe racks 600 on the first pallet area 501.

[0057] The tube rack 600 is rectangular in shape, with a guide groove 6001 on one side along its length that mates with the guide edge 5001. This design, where the guide edge 5001 and guide groove 6001 mate, helps the tube rack 600 move stably and also prevents it from being placed backwards. The upper end of the tube rack 600 is intermittently equipped with several cylindrical tube compartments 601 for holding blood collection tubes 000. Each compartment 601 has its opening facing upwards, through which the blood collection tube 000 is inserted. To facilitate sensor monitoring of whether a blood collection tube 000 is inside the compartment 601, a space is left on the front side of each compartment. There is a through slit, and an opening is provided on the lower rear side; the bottom surface of the lower end of the tube rack 600 has a downward-facing slot 602, and the size of the slot 602 is smaller than the size of the aforementioned actuation inlet 5021. The front and rear sides of the lower end of the tube rack 600 are respectively provided with viewing holes 603 facing the aforementioned through-beam sensor 5023 to facilitate monitoring by the through-beam sensor 5023; a tube rack step surface 6002 is formed at the connection between the upper end and the lower end of the tube rack 600. When the tube rack 600 is located in the second tray area 502, the pressing edge 5022 fits exactly against the tube rack step surface 6002 to ensure its stable movement.

[0058] Furthermore, a pair of beam sensors 5023 are provided at the center of both the outer and inner sides of the second tray area 502 along the X direction. These sensors are used to detect whether there is a blood collection tube 000 inside the tube rack 600, and whether the tube rack 600 has been moved into place under the action of the tube rack transfer assembly 300. To facilitate monitoring by the two pairs of beam sensors 5023, a tray viewing hole is also provided at the center of both the outer and inner sides of the second tray area 502 along the X direction. The position monitored by the two pairs of beam sensors 5023 is also the detection position for blood testing of the blood collection tube 000 inside the tube rack 600. That is, when the blood collection tube 000 moves to this position, the detection mechanism (not shown) receives the detection signal from the beam sensor 5023 and then tests the blood sample inside the blood collection tube 000.

[0059] The tube rack propulsion assembly 200 includes a guide rail support plate 101 mounted on a base plate 100. A propulsion linear guide rail 202 is mounted on the guide rail support plate 101 along the Y direction. A propulsion rotary motor 204 is mounted on the guide rail support plate 101 at the front end of the propulsion linear guide rail 202. A side plate is mounted on one side of the guide rail support plate 101. A first synchronous pulley assembly 203 is mounted on the side plate. The first synchronous pulley assembly 203 includes a driving pulley 2031, a driven pulley 2032, and a synchronous belt 2033. The driving pulley 2031 and the driven pulley 2032 are rotatably mounted on both ends of the side plate along the Y direction. The drive end of the propulsion rotary motor 204 is connected to the driving pulley 2031. The synchronous belt 2033 is sleeved between the driving pulley 2031 and the driven pulley 2032. The synchronous belt 2033 and the propulsion linear guide rail 202 are located in the same horizontal plane and are parallel to each other.

[0060] One end of the middle part of the propulsion bracket 201 is fixed to the slider on the propulsion linear guide rail 202, and the other end of the middle part is fixed to the synchronous belt 2033. When the propulsion rotary motor 204 drives the drive wheel 2031 to rotate, it can drive the propulsion bracket 201 to make reciprocating linear motion along the Y direction.

[0061] The push support 201 includes a strip-shaped support base plate 2011, which is arranged parallel to the X direction. Each end of the support base plate 2011 along its length direction has a stepped surface 2012 protruding upward. Each stepped surface 2012 is rotatably connected to a push block 205 through a limiting member. The support base plate 2011 is located below the first tray area 501. By adjusting the limiting member, the free end of the front end of each push block 205 can extend above the first tray area 501. The two free ends of the two push blocks 205 above the first tray area 501 together form a clamping arm. The tube rack 600 on the first tray area 501 moves along the Y direction under the clamping arm.

[0062] Specifically, each push block 205 is teardrop-shaped, with its pointed end being the front end, i.e., the free end. A limiting component is installed on its tail end. For this limiting component, a waist-shaped hole 2051 is formed on the tail end. Two circular limiting holes 2052 are also formed on the tail end, near the front of the waist-shaped hole 2051 and close to the tube rack transfer assembly 300. The three components are arranged in a triangular pattern. The waist-shaped hole 2051 and one inner circular limiting hole 2052 cover the stepped surface, while the other circular limiting hole 2052 is located outside the stepped surface. Each limiting component includes two limiting plug bolts 208, one screw 207, and one... A torsion spring 206, one of which is a limiting bolt 208 passing through a circular limiting hole 2052 and stopping inside the stepped surface 2012, and the other limiting bolt 208 passing through a waist-shaped hole 2051 and stopping inside the stepped surface 2012, so that each push block 205 can rotate along the waist-shaped hole 2051 and be connected to each stepped surface 2012. To limit the rotation angle of the push block 205, the screw 207 is fixed in another circular limiting hole 2052. The torsion spring 206 is sleeved on a limiting bolt 208 in the inner circular limiting hole, and the two ends of the torsion spring 206 are respectively located on the outer side of the screw 207.

[0063] The purpose of using the aforementioned limiting components to restrict and fix the rotation angle of the push block 205 is, as... Figure 14 As shown, when the tube rack 600 is located in front of the free ends of the two push blocks 205, if the tube rack 600 is to be pushed out and pushed to the second tray area for blood sample testing, the push blocks 205 only need to push the tube rack 600 forward along the Y direction. At this time, due to the limiting effect of the torsion spring 206, the angle of the two push blocks 205 is fixed and will not rotate. Thus, the two push blocks 205 drive the tube rack 600 forward along the Y direction. If the tube rack 600 located in front of the free ends of the two push blocks 205 is to be moved behind the two push blocks 205, it is only necessary to push the tube rack 600 backward along the Y direction. The two push blocks 205 can then rotate along the waist-shaped hole 2051, so that the tube rack 600 is placed behind the two push blocks 205 and is not pushed out to the second tray area for testing. After the backward pushing force applied to the push blocks 205 disappears, the two push blocks 205 reset under the action of the torsion spring 206. This allows for flexible adjustment of the placement order of the pipe racks 600 in the first tray area 501 to meet temporary urgent testing needs. For example, when there are pipe racks 600 that need to be tested urgently, simply push the existing pipe racks 600 in the first tray area 501 that are in front of the push block 205 backward so that the pipe racks 600 move backward to behind the push block 205, and then place several pipe racks 600 that need to be tested urgently in front of the push block 205.

[0064] Preferably, a bracket limiting strip 209 is installed on the bracket base plate 2011, and a limiting photoelectric sensor 210 is provided on the base plate 100 at the rear end of the push linear guide 202 away from the push rotary motor 204. When the bracket limiting strip 209 runs to the limiting photoelectric sensor 210, the push bracket 201 stops to prevent it from derailing.

[0065] When the propulsion rotary motor 204 and the first synchronous wheel assembly 203 drive the propulsion bracket 201 to move the tube rack 600 in the first tray area forward along the Y direction, when the tube rack 600 moves to the foremost position of the first tray area 501, the slot 602 of the tube rack 600 near the second tray area 502 is located above a toggle inlet 5021 of the second tray area 502, so that the subsequent tube rack transfer assembly 300 can transfer it.

[0066] The tube rack transfer assembly 300 includes a crank connecting plate 301 vertically connected to the base plate 100. A parallel double crank mechanism is installed on the inner side of the crank connecting plate 301 facing the second tray area 502, so as to accurately move the tube rack 600 on the second tray area 502 by a fixed distance, so as to realize the sampling and testing of individual blood collection tubes 000 in the tube rack 600.

[0067] Specifically, the parallel double crank mechanism includes two driven cranks 302, one driving crank 303, and a tooth-pulling connecting rod 304. Each driven crank 302 and driving crank 303 is similar to an obliquely placed bicycle double pedal. The tooth-pulling connecting rod 304 is a long rectangle with both ends protruding upwards along its length, each forming a rectangular tooth 3041.

[0068] Two driven cranks 302 are rotatably mounted at one end on both ends of the crank connecting plate 301 along the X direction. One end of the driving crank 303 is rotatably mounted on the crank connecting plate 301 and located between the two driven cranks 302. The other ends of the two driven cranks 302 and the driving crank 303 are jointly fixed to the tooth-pulling connecting rod 304, and the two teeth 3041 on the tooth-pulling connecting rod 304 are respectively located below the two actuation inlets 5021. The fixed end of the rotary drive motor 305 is connected to the crank connecting plate 301, and its driving end passes through the crank connecting plate 301 and is driven to the driving crank 303. When the rotary drive motor 305 drives the active crank 303 to rotate around its motor shaft, the active crank 303 drives the driven crank 302 to rotate via the tooth-pulling connecting rod 304. At the same time, the tooth-pulling connecting rod 304 swings and rises counterclockwise with the driven crank 302 and the active crank 303. When the two teeth 3041 rise to the actuation inlet 5021, they contact the side of the slot 602 at the bottom of the tube rack 600 located above the actuation inlet 5021, and continue to swing and rise, thereby pushing the tube rack 600 to move towards the third tray area 503. Then the tooth-pulling connecting rod 304 returns to the initial position, thus completing one cycle of the parallel double crank mechanism. In this utility model, after one cycle of the parallel double crank mechanism ends, the tube rack 600 is designed to move a distance of one blood collection tube 000. This cycle is then repeated until all the tube racks 600 located in the second tray area 502 are moved along the X direction and placed on the third tray area 503.

[0069] The tube rack ejection assembly 400 includes an ejection linear guide 403 and a second synchronous pulley assembly 402 mounted parallel to each other along the Y direction on the base plate 100. The components and connections of the second synchronous pulley assembly 402 are similar to those of the first synchronous pulley assembly 203, and will not be described again here. A rotary ejection drive motor 408 is mounted on the base plate 100, and its drive end is connected to one of the synchronous pulleys in the second synchronous pulley assembly 402. A fixed belt slider 404 and a push rod slider 405 are slidably connected in sequence on the ejection linear guide 403, and the push rod slider 405 is located at the front end near the crank connecting plate 301.

[0070] A timing belt fixing block 4041 is fixedly connected to the fixing belt slider 404, and a push rod fixing block 4051 is fixedly connected to the push rod slider 405. A section of the timing belt in the second timing pulley assembly 402 is fixedly connected to the timing belt fixing block 4041; a push rod 401 is connected to the push rod fixing block 4051.

[0071] Furthermore, to monitor the number of buffer tube racks 600 in the third tray area 503, a slider through hole is provided in the synchronous belt fixing block 4041 parallel to the Y direction. The opening diameter of the slider through hole is small on the side facing the push rod fixing block 4051 and large on the side away from the push rod fixing block 4051. One end of the floating plug screw 406 is fixed to the push rod fixing block 4051 along its length direction, and the other end with the screw head is slidably connected in the slider through hole of the synchronous belt fixing block 4041. The diameter of the screw head of the floating plug screw 406 is larger than the diameter of the small opening of the slider through hole to prevent it from slipping out. The compression spring 407 is sleeved on the outside of the floating plug screw 406 and is located in the slider through hole. The floating plug screw 406 connects the fixed belt slider 404 and the push rod slider 405, keeping them in a close-fitting state. However, if pulled by external force, the floating plug screw 406 can slide along the slider through hole, causing the fixed belt slider 404 and the push rod slider 405 to separate. To monitor whether the fixed belt slider 404 and the push rod slider 405 are separated, the timing belt fixing block 4041 is equipped with a fixing block limit strip 4092, and the push rod fixing block 4051 is equipped with a warning photoelectric sensor switch 4091. When the fixed belt slider 404 and the push rod slider 405 are in a close-fitting state, the fixing block limit strip 4092 is connected to the warning photoelectric sensor switch 4091. If the fixed belt slider 404 and the push rod slider 405 are in a separated state, the fixing block limit strip 4092 is separated from the warning photoelectric sensor switch 4091, and an alarm signal is issued as a reminder.

[0072] Furthermore, to monitor the movement distance of the fixed band slider 404 and the push rod slider 405, a positioning photoelectric sensor switch 4093 is provided on the base plate at both ends of the ejection linear guide rail 403; the fixed block limit bar 4092 is a double-headed design, with one end facing the warning photoelectric sensor switch 4091 along the Y direction and the other end facing the positioning photoelectric sensor switch 4093 along the Z direction downward. When the fixed block limit bar 4092 moves to the positioning photoelectric sensor switch 4093, the fixed band slider 404 stops.

[0073] The push rod 401 includes a vertically arranged handle 4011. The top surface of the handle 4011 extends horizontally towards the third tray area 503 and then extends vertically upward to form a push rod surface 4012. The handle 4011 is connected to the push rod fixing block 4051 and is located outside the side stop of the third tray area 503. The push rod surface 4012 is rotated out and driven by the drive motor 408 and the second synchronous pulley assembly 402 to move above or outside the third tray area 503.

[0074] When the tube rack 600 located in the second tray area 502 is moved to the third tray area 503 by the tube rack transfer assembly in one cycle, the rotary movement drive motor 408 drives the synchronous wheel in the second synchronous wheel assembly 402 to rotate, thereby driving the synchronous belt fixing block 4041, fixing belt slider 404, push rod slider 405, push rod fixing block 4051 and push rod 401 to move backward along the Y direction, thereby pushing the tube rack 600 located in the third tray area 503 backward along the Y direction to be arranged and buffered behind the third tray area 503. Furthermore, due to the obstruction between the handle 4011 on the push rod 401 and the side guard of the third tray area 503, the push rod 401 can only push the tube rack 600 backward along the Y direction by about the width of one tube rack 600 at a time. When the tube racks 600 on the third tray area 503 are filled with the preset number, when the push rod 401 continues to push in additional tube racks 600, the push rod 401 is blocked by the tube racks 600 on the third tray area 503. The push rod fixing block 4051 and the push rod slider 405 connected to it cannot continue to move backward along the Y direction with the fixing belt slider 404. As the fixing belt slider 404 continues to move backward along the Y direction without obstruction, the floating plug screw 406 also slides, thereby causing the push rod slider 405 and the fixing belt slider 404 to separate, thus triggering the warning photoelectric sensor switch 4091 to remind the manual or robotic arm to remove the buffer tube racks 600 that have been detected on the third tray area 503.

[0075] The operation process of this utility model is as follows:

[0076] Pipe rack 600 is pushed out for feeding:

[0077] Several tube racks 600 to be tested are placed in the first tray area 501. The propulsion rotary motor 204 is started, which drives the propulsion bracket 201 to clamp a tube rack 600 and move it forward along the Y direction to the front end of the first tray area 501. At this time, a slot 602 of the tube rack 600 near the second tray area 502 is located above the actuation inlet 5021 on the second tray area 502.

[0078] Pipe rack 600 positioning displacement, blood sample testing:

[0079] The rotary drive motor 305 is started, which drives the parallel double crank mechanism to rotate and rise, so that the pull teeth 3041 on the pull tooth connecting rod 304 rise to contact the side wall of the slot 602 of the tube rack 600 in the pull inlet 5021 and continue to swing, thereby driving the tube rack 600 to move along the X direction by the displacement of one blood collection tube 000. When the blood collection tube 000 in the tube rack 600 moves to the detection position of the two photoelectric sensors 5023, the detection mechanism (not shown) detects the blood sample in the blood collection tube 000. After the detection is completed, this cycle is repeated until all the blood collection tubes 000 in the tube rack 600 located in the second tray area 502 have been detected, and the tube rack 600 is moved along the X direction to the front end of the third tray area 503.

[0080] Pipe rack 600 push buffer:

[0081] The rotary push-out drive motor 408 is activated, which drives the push rod 401 to push the tube rack 600 backward along the Y direction. The tube rack 600 moves by a displacement of about one tube rack 600 width and then resets. When the next tube rack 600 is transferred from the second tray area 502, the push rod 401 sequentially drives the tube rack 600 to move backward along the Y direction. When the third tray area 503 has a preset number of tube racks 600, and a new tube rack 600 that has completed inspection moves to the front end of the third tray area 503, the push rod 401 pushes the tube rack 600 backward. As a result, the push rod is blocked by the remaining tube racks 600 on the third tray area 503 and cannot continue to move with the fixed belt slider 404 and the synchronous belt fixing block 4041. This causes the fixed belt slider 404 and the push rod slider 405 to separate, thereby triggering the buffer warning photoelectric sensor switch 4091, reminding the manual or robotic arm to remove the buffered tube racks 600 that have completed inspection on the third tray area 503.

[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A blood collection tube holder transfer device, characterized in that, Includes a base plate (100), on which a tube rack tray (500) is mounted; on the base plate and below the tube rack tray (500), a tube rack pushing assembly (200), a tube rack transferring assembly (300) and a tube rack pushing assembly (400) are sequentially installed along the X direction; and on the tube rack tray (500) above the tube rack transferring assembly (300), two actuation inlets (5021) are opened at each end along the X direction; The drive end of the tube rack propulsion assembly (200) is connected to a propulsion bracket (201). The propulsion bracket (201) is located above its corresponding tube rack tray (500) area. Under the drive of the tube rack propulsion assembly (200), it drives the tube rack (600) on the tube rack tray (500) to move along the Y direction. The tube rack transfer assembly (300) has a drive end connected to a tooth (3041). The tube rack transfer assembly (300) drives the tooth (3041) to move closer to or further away from the actuation inlet (5021) so as to move the tube rack (600) on the tube rack tray (500) along the X direction. The drive end of the tube rack ejection assembly (400) is connected to a push rod (401), which drives the tube rack (600) on the third tray area (503) to move along the Y direction.

2. The blood collection tube transfer device according to claim 1, characterized in that, The tube rack tray (500) is dumbbell-shaped and includes a first tray area (501), a second tray area (502), and a third tray area (503); the second tray area (502) has two actuation inlets (5021) at each end along the X direction; the first tray area (501) is located above the tube rack pushing assembly (200), the second tray area (502) is located above the tube rack transfer assembly (300), and the third tray area (503) is located above the tube rack ejection assembly (400); The first pallet area (501) and the third pallet area (503) are both rectangular, with a length that matches the length of a tube rack (600) and a width that is greater than the width of a tube rack (600); the second pallet area (502) is a long rectangle, with its length and width matching the length and width of a tube rack (600).

3. The blood collection tube transfer device according to claim 2, characterized in that, The push support (201) includes a strip-shaped support base plate (2011) arranged parallel to the X direction. Each end of the support base plate (2011) is rotatably connected to a push block (205) via a limiting member. The support base plate (2011) is located below the first tray area (501). The front end of each push block (205) is located above the first tray area (501). The two front ends of the two push blocks (205) above the first tray area (501) form a clamping arm. The tube rack (600) moves along the Y direction under the clamping arm.

4. The blood collection tube transfer device according to claim 3, characterized in that, Each of the aforementioned push blocks (205) is similar to a teardrop shape, with one pointed end as the front end and a waist-shaped hole (2051) opened on its tail end. Two circular limiting holes (2052) are also opened on the tail end in front of the waist-shaped hole (2051). The three are arranged in a similar triangular layout. The limiting members are installed in the waist-shaped hole (2051) and the circular limiting holes (2052) to limit the rotation angle of each push block (205).

5. A blood collection tube transfer device according to claim 4, characterized in that, The limiting component includes two limiting plug bolts (208), one screw (207), and one torsion spring (206); The waist-shaped hole (2051) and the circular limiting hole (2052) near the inner side cover the bracket base plate (2011). The two limiting plug bolts (208) pass through the waist-shaped hole (2051) and the circular limiting hole (2052) respectively and stop in the bracket base plate, so that the push block (205) is rotatably connected to the bracket base plate. Another circular limiting hole (2052) is located outside the bracket base plate, and the screw (207) is fixed inside the circular limiting hole (2052); the torsion spring (206) is sleeved on a limiting plug bolt (208) of the inner circular limiting hole, and the two ends of the torsion spring (206) are located on the outer side of the screw (207).

6. A blood collection tube transfer device according to claim 2, characterized in that, The tube rack transfer assembly (300) includes a crank connecting plate (301) vertically connected to the base plate (100). A driven crank (302) is rotatably connected to each end of the side of the crank connecting plate (301) facing the second tray area (502) along the X direction. An active crank (303) is also rotatably connected between the two driven cranks (302). A strip-shaped paddle connecting rod (304) is rotatably connected to the two driven cranks (302) and the active crank (303). A paddle tooth (3041) is protruding upward at each end of the paddle connecting rod (304) along its length direction. The position and size of the paddle tooth (3041) are compatible with the position and size of the actuation inlet (5021). After the drive end of the rotary drive motor (305) passes through the crank connecting plate (301), it is driven to connect to the active crank (303). The rotary drive motor (305) drives the active crank (303) to rotate around its motor shaft, so as to drive the two paddle teeth (3041) to approach or move away from their corresponding paddle entry (5021).

7. A blood collection tube transfer device according to claim 2, characterized in that, The tube rack ejection assembly (400) includes an ejection linear guide rail (403) and a second synchronous pulley assembly (402) mounted parallel to each other on the base plate (100) along the Y direction. A fixed belt slider (404) and a push rod slider (405) are slidably connected on the ejection linear guide rail (403) in sequence. The push rod slider (405) is located at the front end of the fixed belt slider (404). A timing belt fixing block (4041) is fixedly connected to the fixing belt slider (404), and the timing belt fixing block (4041) is connected to a section of the timing belt in the second timing pulley assembly (402). A push rod fixing block (4051) is fixedly connected to the push rod slider (405), and a push rod (401) is connected to the push rod fixing block (4051). The rotary ejection drive motor (408) is mounted on the base plate (100), and its drive end is connected to a synchronous pulley in the second synchronous pulley assembly (402).

8. A blood collection tube transfer device according to claim 7, characterized in that, The synchronous belt fixing block (4041) has a slider through hole parallel to the Y direction. One end of the floating plug screw (406) is fixed to the push rod fixing block (4051), and the other end is slidably connected in the slider through hole. The compression spring (407) is sleeved outside the floating plug screw (406) and located in the slider through hole. When the compression spring (407) is in an undeformed state, the fixed belt slider (404) and the push rod slider (405) are in a mutually close state.

9. A blood collection tube transfer device according to claim 8, characterized in that, The push rod (401) includes a vertically arranged handle (4011). The top surface of the handle (4011) extends horizontally toward the third tray area (503) and then extends vertically upward to form a push rod surface (4012). The handle (4011) is connected to the push rod fixing block (4051) and is located on the outside of the third tray area (503).

10. A blood collection tube transfer device according to claim 1, characterized in that, Each tube rack (600) placed on the tube rack tray (500) is a long strip with several tube compartments (601) spaced apart at its upper end. On the bottom surface of its lower end, there is a downward-facing slot (602) corresponding to the position of each tube compartment (601). The size of the slot (602) is compatible with the size of the actuation inlet (5021).

Images