Blood collection tube transfer device

Abstract

The invention discloses a blood collection tube rack transfer device which comprises a bottom plate, a tube rack tray is erected on the bottom plate, a tube rack containing blood collection tubes is arranged on the tube rack tray, and a tube rack pushing assembly, a tube rack transfer assembly and a tube rack pushing assembly are sequentially installed on the bottom plate and located below the tube rack tray in the X direction. The to-be-detected tube frame is pushed out in the Y direction through the tube frame pushing assembly, automatic conveying and feeding of the tube frame are achieved, the pushed-out tube frame moves in the X direction in a positioned mode under the action of the tube frame transferring assembly, and in the process, an external detection mechanism detects blood collection tubes in the tube frame located above the tube frame transferring assembly. According to the device, the unit displacement detection of the detection mechanism is automatically matched, the detected tube frame is transferred to the tube frame push-out assembly from the tube frame push-out assembly in the X direction to be cached, the moving line design is reasonable, all the mechanisms are tightly matched, and the automation level of blood collection tube detection is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical device automation, and in particular to a blood collection tube transfer device. Background Art

[0002] Blood tests can be used to diagnose a variety of diseases, so in modern medicine, blood tests are used as a relatively common means of disease diagnosis. In existing hospitals, blood collection is usually carried out at a blood collection station, and then the blood collection tubes containing blood samples are uniformly collected on a tube rack, and finally the tube rack is transferred to the laboratory for blood testing. When performing blood tests on the blood collection tubes in the tube rack, medical staff usually need to take out the blood collection tubes in the tube rack one by one, and then take samples and test them one by one.

[0003] However, with the increasing number of patients in the hospital, especially during the peak period of medical treatment, the number of samples that need blood testing has also increased exponentially. Relying on manual sampling and testing one by one not only has a large workload and low work efficiency, but is also prone to work errors, such as missed detection. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a blood collection tube rack transfer device, which can realize automatic transportation, automatic unit distance positioning displacement and automatic output of the blood collection tube rack, thereby improving the automation level of blood collection tube detection.

[0005] The technical solution of the present invention is:

[0006] A blood collection tube rack transfer device, characterized in that it comprises a bottom plate, on which a tube rack tray is mounted; on the bottom plate and below the tube rack tray, a tube rack pushing assembly, a tube rack transfer assembly and a tube rack pushing assembly are sequentially mounted along the X direction;

[0007] The pipe rack tray located above the pipe rack pushing assembly and the pipe rack pushing assembly is provided with a guide edge horizontally folded toward its central axis on at least one side along the Y direction; the pipe rack tray located above the pipe rack transfer assembly is provided with two shifting entrances at both ends along the X direction;

[0008] The driving end of the pipe rack propulsion assembly is connected to a propulsion bracket, which is located above the corresponding pipe rack tray area and drives the pipe rack on the pipe rack tray to move along the Y direction under the drive of the pipe rack propulsion assembly;

[0009] The driving end of the pipe rack transfer assembly is connected with a pull gear, and the pipe rack transfer assembly drives the pull gear to move closer to or away from the pull inlet to drive the pipe rack on the pipe rack tray to move along the X direction;

[0010] The driving end of the pipe rack pushing assembly is connected with a push rod, and the push rod drives the pipe rack on the third pallet area to move along the Y direction.

[0011] Furthermore, the pipe rack tray is dumbbell-shaped and includes a first tray area, a second tray area, and a third tray area; two dialing inlets are respectively provided at both ends of the second tray area along the X direction; the first tray area is located above the pipe rack pushing assembly, the second tray area is located above the pipe rack transferring assembly, and the third tray area is located above the pipe rack pushing-out assembly;

[0012] Both the first tray area and the third tray area are rectangular, with their lengths suitable for the length of one pipe rack and their widths greater than the width of one pipe rack; the second tray area is long and rectangular, with its length and width suitable for the length and width dimensions of one pipe rack; and a pair of photoelectric sensors are provided on the second tray area for detecting whether there is a blood collection tube in the pipe rack on the second tray area and its moving position.

[0013] Furthermore, the pushing support includes a strip-shaped support substrate arranged parallel to the X direction. A step surface protrudes upward at both ends of the support substrate along its length. A pushing block is rotatably connected to each step surface through a limiting member; the support substrate is located below the first tray area, and the front end of each pushing block is located above the first tray area. The two front ends of the two pushing blocks located above the first tray area form a clamping arm, and the pipe rack moves along the Y direction under the clamping of the clamping arm.

[0014] Furthermore, each pushing block is similar to a water droplet shape, with its pointed end as the front end. A waist-shaped hole is opened at its tail end, and two circular limiting holes are also opened in front of the waist-shaped hole at the tail end. The three are arranged in a layout similar to a triangle. The limiting member is installed in the waist-shaped hole and the circular limiting holes to limit the rotation angle of each pushing block.

[0015] Furthermore, the limiting member includes two limit socket head bolts, a screw, and a torsion spring;

[0016] The waist-shaped hole and the circular limiting hole close to the inner side cover the step surface. The two limit socket head bolts respectively pass through the waist-shaped hole and the circular limiting hole in sequence and then stop in the support substrate, so that the pushing block is rotatably connected to the support substrate;

[0017] The other circular limiting hole is located outside the step surface, and the screw is fixedly connected to the circular limiting hole; the torsion spring is sleeved on a limit socket head bolt of the circular limiting hole close to the inner side, and both ends of the torsion spring are respectively located on the outer side of the screw.

[0018] Further, the pipe rack transfer assembly includes a crank connecting plate vertically connected to the bottom plate, and the crank connecting plate is rotatably connected to two ends of the side surface of the second pallet area along the X direction, and a driving crank is rotatably connected between the two driven cranks, and the two driven cranks and the driving crank are rotatably connected to a strip-shaped shifting gear connecting rod, and the shifting gear connecting rod is rotatably connected to both ends of the length direction thereof, and a shifting gear is protruded upward; the position and size of the shifting gear are applicable to the position and size of the shifting inlet;

[0019] The driving end of the rotary driving motor passes through the crank connecting plate and is connected to the active crank. The rotary driving motor drives the active crank to rotate around its motor shaft to drive the two shifting teeth to approach or move away from their corresponding shifting inlets.

[0020] Furthermore, the pipe rack push-out assembly includes a push-out linear guide rail and a second synchronous wheel assembly installed on the bottom plate in parallel along the Y direction, and a fixed belt slider and a push rod slider are slidably connected to the push-out linear guide rail in sequence, and the push rod slider is located at the front end of the fixed belt slider;

[0021] The fixed belt slider is fixedly connected with a synchronous belt fixing block, the synchronous belt fixing block is connected to a section of the synchronous belt in the second synchronous wheel assembly, the push rod slider is fixedly connected with a push rod fixing block, and the push rod fixing block is connected with a push rod;

[0022] The rotary push-out driving motor is installed on the bottom plate, and the driving end of the motor is connected to a synchronous wheel in the second synchronous wheel assembly.

[0023] Furthermore, a slider through hole is opened in the synchronous belt fixing block parallel to the Y direction, one end of the floating plug screw is fixedly connected to the push rod fixing block, and the other end thereof is slidably connected to the slider through hole, and the compression spring is sleeved outside the floating plug screw and is located in 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 fitting state.

[0024] Furthermore, the push rod includes a vertically arranged handle, the top surface of the handle 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 pipe rack placed on the pipe rack tray is in the shape of a long strip, and a guide groove cooperating with the guide edge is provided on one side along its length direction;

[0026] A plurality of pipe bins are arranged at intervals on the upper end of the pipe rack, and a notch opening downward is arranged on the bottom surface of the lower end thereof corresponding to each pipe bin position, and the size of the notch is adapted to the size of the toggle inlet.

[0027] The beneficial technical effects of the present invention are:

[0028] 1. The present invention is designed with a tube rack tray. The tube rack containing blood collection tubes is placed on the tube rack tray. Below the tube rack tray, there are successively arranged a tube rack propulsion assembly, a tube rack transfer assembly, and a tube rack ejection assembly. The tube rack propulsion assembly ejects the tube rack to be detected along the Y direction, realizing the 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 transfer assembly. During this process, the detection mechanism detects the blood collection tubes in the tube rack located above the tube rack transfer assembly, realizing automatic cooperation with the detection mechanism for unit displacement detection. The tube rack that has completed the detection is transferred to the buffer at the tube rack ejection assembly along the X direction by the tube rack ejection assembly. Its moving line design is reasonable, and each mechanism cooperates closely, greatly improving the automation level of blood collection tube detection.

[0029] 2. The toothed link, driven crank, driving crank, and crank connecting plate in the tube rack transfer assembly of the present invention form a parallel double-crank mechanism. Driven by the rotating and moving drive motor, this parallel double-crank mechanism drives the toothed link to perform periodic motion around its motor shaft. Each period of motion can move the tube rack a fixed distance, that is, exactly move a distance equal to the bottom area of a blood collection tube, cooperating with the external detection mechanism to realize precise sampling and detection actions on each single blood collection tube in the tube rack one by one.

[0030] 3. The tube rack tray of the present invention is dumbbell-shaped, that is, both the first tray area and the third tray area can store multiple tube racks, facilitating the feeding and discharging buffer of the 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.

[0031] 4. At both ends of the propulsion bracket of the present invention, a propulsion block is rotatably connected through a limiting member. While realizing the clamping of the tube rack and moving it along the Y direction, since the two propulsion blocks can rotate directionally, it can flexibly adjust the position of the tube rack on the first tray area, taking into account the flexibility of meeting the detection sequence. Description of the Drawings

[0032] Figure 1 is the overall schematic diagram of the present invention;

[0033] Figure 2 is the schematic diagram of the present invention after removing the tube rack;

[0034] Figure 3 is the schematic diagram of the tube rack propulsion assembly of the present invention;

[0035] Figure 4 is Figure 3 another perspective schematic diagram of

[0036] Figure 5 is Figure 4 the enlarged schematic diagram of the propulsion block and the limiting member in

[0037] Figure 6Schematic diagram of the propulsion slider of the present invention;

[0038] Figure 7 Schematic diagram of the pipe rack transfer assembly of the present invention;

[0039] Figure 8 Is Figure 7 Schematic diagram after removing the tooth-pulling connecting rod;

[0040] Figure 9 Schematic diagram of the pipe rack pushing assembly of the present invention;

[0041] Figure 10 Is Figure 9 Schematic diagram from another angle;

[0042] Figure 11 Is Figure 10 Cross-sectional view of;

[0043] Figure 12 Schematic diagram of the pipe rack of the present invention;

[0044] Figure 13 Is Figure 12 Schematic diagram from another angle;

[0045] Figure 14 Top view of the present invention.

[0046] Wherein:

[0047] 000, blood collection tube; 100, bottom plate; 101, guide rail bearing plate;

[0048] 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 slider; 2051, waist-shaped hole; 2052, circular limit hole; 206, torsion spring; 207, screw; 208, limit plug bolt; 209, bracket limit strip; 210, limit photoelectric sensor;

[0049] 300, pipe rack transfer assembly; 301, crank connecting plate; 302, driven crank; 303, driving crank; 304, tooth-pulling connecting rod; 3041, tooth-pulling; 305, rotary movement driving motor;

[0050] 400, Tube rack pushing component; 401, Push rod; 4011, Rod handle; 4012, Push rod face; 402, Second synchronous pulley component; 403, Pushing linear guide rail; 404, Fixed block with slider; 4041, Synchronous belt fixing block; 405, Push rod slider; 4051, Push rod fixing block; 406, Floating plug screw; 407, Compression spring; 408, Rotary pushing drive motor; 4091, Warning photoelectric induction switch; 4092, Fixed block limit bar; 4093, In-place photoelectric induction switch;

[0051] 500, Tube rack tray; 5001, Guide edge; 501, First tray area; 502, Second tray area; 5021, Pushing inlet; 5022, Pressing edge; 5023, Through-beam sensor;

[0052] 503, Third tray area; 600, Tube rack; 6001, Guide groove; 6002, Tube rack step surface; 601, Tube bin; 602, Notch; 603, Perspective hole; 700, Tube rack sensor. Detailed implementation mode

[0053] In order to be able to more clearly understand the technical means of the present invention and implement it in accordance with the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific implementation mode of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0054] As Figures 1 - 14 shown, the present invention provides a blood collection tube rack transfer device, which includes a bottom plate 100. Along the X direction, a tube rack propulsion component 200, a tube rack transfer component 300, and a tube rack pushing component 400 are sequentially installed on the bottom plate 100. A tube rack tray 500 for placing the tube rack 600 is erected on the bottom plate 100. The present invention is used in cooperation with a detection mechanism (not shown), and the detection mechanism is located on the front side of the bottom plate 100 along the Y direction.

[0055] 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 direction. 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, and can be used to place multiple pipe racks 600. Side edges are provided around the first tray area 501 and the third tray area 503, and one side edge along the Y direction of the first tray area 501 and the third tray area 503 is horizontally folded towards the central axis to form a guiding edge 5001. When the pipe rack 600 is placed along the X direction on the first tray area 501 or the third tray area 503, the guiding edge 5001 can be clamped and slid into the guiding 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 rectangular in shape, and its length and width are suitable for the length and width of a pipe rack, that is, it can only accommodate one pipe rack 600 for placement and passage. At both ends of the second tray area 502 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, a dialing inlet 5021 is provided respectively. And a pressing edge 5022 that is folded towards the central axis is provided on the outer side edge of the second tray area 502 along the X direction, and an inner side edge is provided on the inner side edge along the X direction, and both ends of the inner side edge along the X direction are designed as inclined planes to facilitate the transition of the pipe rack 600 from the first tray area 501 to the second tray area 502 and the transition of the pipe rack 600 from the second tray area 502 to the third tray area 503.

[0056] The first tray area 501 is located above the pipe rack propulsion assembly 200, the second tray area 502 is located above the pipe rack transfer assembly 300, and the third tray area 503 is located above the pipe rack ejection assembly 400.

[0057] Furthermore, pipe rack sensors 700 are provided on the front and rear of the first tray area 501 along the X direction, for monitoring whether there is a pipe rack 600 on the first tray area 501.

[0058] The tube rack 600 is in the shape of a long rectangle, and a guide groove 6001 cooperating with the guide edge 5001 is provided on one side of the outer side along the length direction thereof. The design of the cooperating guide edge 5001 and the guide groove 6001 is conducive to the stable movement of the tube rack 600 on the one hand, and has a foolproof effect on the other hand, to prevent the tube rack 600 from being placed upside down; a plurality of cylindrical tube bins 601 for placing blood collection tubes 000 are intermittently provided on the upper end of the tube rack 600, and each tube bin 601 has an opening facing upwards, and the blood collection tubes 000 are placed therein, and in order to facilitate the sensor to monitor whether there is a blood collection tube 000 in the tube bin 601, a front side of each tube bin is left There is a through slit, and an opening is provided at the lower position of the rear side surface; a notch 602 with an opening facing downward is provided on the bottom surface of the lower end of the pipe rack 600, and the size of the notch 602 is smaller than the size of the above-mentioned toggle entrance 5021, and perspective holes 603 are provided on the front and rear sides of the lower end of the pipe rack 600 respectively facing the following through-shooting sensor 5023, so as to facilitate monitoring by the through-shooting sensor 5023; a pipe rack step surface 6002 is formed at the connection between the upper end and the lower end of the pipe rack 600, and when the pipe rack 600 is located in the second pallet area 502, the pressing edge 5022 just fits above the pipe rack step surface 6002 to ensure its stable movement.

[0059] Furthermore, a pair of radiation sensors 5023 are provided at the center of the outer edge and the inner edge of the second tray area 502 along the X direction, which are used to detect whether there is a blood collection tube 000 in the tube rack 600, and whether the tube rack 600 is transferred into place under the action of the tube rack transfer assembly 300. In order to facilitate the monitoring of the two radiation sensors 5023, a tray perspective hole is also provided at the center of the outer edge and the inner edge of the second tray area 502 along the X direction. The position monitored by the two radiation sensors 5023 is also the detection position for blood testing of the blood collection tube 000 in the tube rack 600, that is, when the blood collection tube 000 moves to this position, the detection mechanism (not shown) detects the blood sample in the blood collection tube 000 after receiving the detection signal of the radiation sensor 5023.

[0060] The pipe rack propulsion assembly 200 includes a guide rail bearing plate 101 installed on the base plate 100, and a propulsion linear guide 202 is installed on the guide rail bearing plate 101 along the Y direction, and a propulsion rotary motor 204 is installed on the guide rail bearing plate 101 at the front end of the propulsion linear guide 202; a side connecting plate is installed on one side of the guide rail bearing plate 101, and a first synchronous wheel assembly 203 is installed on the side connecting plate, and the first synchronous wheel assembly 203 includes a driving wheel 2031, a driven wheel 2032 and a synchronous belt 2033, the driving wheel 2031 and the driven wheel 2032 are respectively rotatably installed at both ends of the side connecting plate along the Y direction, and the driving end of the propulsion rotary motor 204 is connected to the driving wheel 2031, and the synchronous belt 2033 is sleeved between the driving wheel 2031 and the driven wheel 2032, and the synchronous belt 2033 and the propulsion linear guide 202 are located in the same horizontal plane and are parallel.

[0061] One end of the middle part of the propulsion bracket 201 is fixedly connected to the slider on the propulsion linear guide 202, and the other end of the middle part is fixedly connected to the synchronous belt 2033. When the propulsion rotary motor 204 drives the driving wheel 2031 to rotate, it can drive the propulsion bracket 201 to make a reciprocating linear motion along the Y direction.

[0062] The propulsion bracket 201 includes a strip-shaped bracket substrate 2011 which is arranged parallel to the X direction. Both ends of the bracket substrate 2011 in the length direction thereof are each convexly provided with a step surface 2012 upwards. A propulsion dial 205 is rotatably connected to each step surface 2012 through a limiting member. The bracket substrate 2011 is located below the first tray area 501. By adjusting the limiting member, the free end of the front end of each propulsion dial 205 can extend above the first tray area 501, and the two free ends of the two propulsion dials 205 located above the first tray area 501 together form a holding arm. The pipe rack 600 on the first tray area 501 moves along the Y direction under the clamping of the holding arm.

[0063] Specifically, each propulsion dial 205 is similar to a water droplet shape. Its pointed end is the front end, that is, the free end. A limiting member is installed at its tail end. To install the limiting member, a waist-shaped hole 2051 is opened at its tail end. Two circular limiting holes 2052 are also opened at the tail end and in front of the waist-shaped hole 2051 close to the pipe rack transfer assembly 300. The three are arranged in a layout similar to a triangle. The waist-shaped hole 2051 and a circular limiting hole 2052 close to the inner side cover the step surface, and the other circular limiting hole 2052 is located outside the step surface. Each limiting member includes two limit plug bolts 208, a screw 207, and a torsion spring 206. One limit plug bolt 208 passes through the circular limiting hole 2052 in sequence and then stops inside the step surface 2012. The other limit plug bolt 208 passes through the waist-shaped hole 2051 in sequence and then stops inside the step surface 2012, so that each propulsion dial 205 can be rotatably connected to each step surface 2012 along the waist-shaped hole 2051. To limit the rotation angle of the propulsion dial 205, the above screw 207 is fixedly connected to the other circular limiting hole 2052. The torsion spring 206 is sleeved on a limit plug bolt 208 of the circular limiting hole close to the inner side, and both ends of the torsion spring 206 are respectively located on the outer side of the screw 207.

[0064] The purpose of using the above limiting member to limit and fix the rotation angle of the propulsion dial 205 is that, as Figure 14As shown in the figure, when the tube rack 600 is located in front of the free ends of the two pushing blocks 205, if the tube rack 600 is to be pushed out and towards the second tray area for blood sample testing, the pushing 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 angles of the two pushing blocks 205 are fixed and will not rotate. Thus, the two pushing blocks 205 drive the tube rack 600 to move forward along the Y direction; if the tube rack 600 located in front of the free ends of the two pushing blocks 205 is to be moved behind the two pushing blocks 205, only the tube rack 600 needs to be pushed backward along the Y direction, and the two pushing blocks 205 can rotate along the waist-shaped holes 2051, so that the tube rack 600 is placed behind the two pushing blocks 205 and is not pushed out to the second tray area for testing for the time being. After the backward thrust applied to the pushing blocks 205 disappears, the two pushing blocks 205 reset under the action of the torsion spring 206. This facilitates the flexible adjustment of the placement order of the tube racks 600 in the first tray area 501 to meet the needs of temporary urgent testing. For example, when there is a tube rack 600 that needs to be urgently tested temporarily, only the tube rack 600 originally located in front of the pushing blocks 205 in the first tray area 501 needs to be pushed backward, so that the tube rack 600 moves backward to behind the pushing blocks 205, and then several tube racks 600 that need to be urgently tested can be placed in front of the pushing blocks 205.

[0065] Preferably, a bracket limiting strip 209 is installed on the bracket base plate 2011, and a limit photoelectric sensor 210 is provided on the bottom plate 100 and at the rear end of the pushing linear guide 202 away from the pushing rotary motor 204. When the bracket limiting strip 209 runs to the position of the limit photoelectric sensor 210, the pushing bracket 201 stops to prevent it from derailing.

[0066] When the pushing rotary motor 204 and the first synchronous wheel assembly 203 drive the pushing bracket 201 to drive the tube rack 600 in the first tray area to move forward along the Y direction, when the tube rack 600 moves to the front end of the first tray area 501, the notch 602 on the side of the tube rack 600 close to the second tray area 502 is exactly located above a dialing inlet 5021 of the second tray area 502, so as to facilitate the subsequent tube rack transfer assembly 300 to transfer it.

[0067] The tube rack transfer assembly 300 includes a crank connecting plate 301 vertically connected to the bottom plate 100. A parallel double-crank mechanism is installed on the inner side surface 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 and realize the actions of sampling and detecting each blood collection tube 000 in the tube rack 600 one by one.

[0068] Specifically, the parallel double crank mechanism includes two driven cranks 302, a driving crank 303 and a tooth extraction connecting rod 304. Each driven crank 302 and driving crank 303 are similar to an inclined bicycle double pedal type. The tooth extraction connecting rod 304 is a long rectangle, and both ends along its length direction protrude upward to form a rectangular tooth extraction 3041.

[0069] One end of the two driven cranks 302 is rotatably mounted on the two ends of the crank connecting plate 301 along the X direction, and one end of the driving crank 303 is rotatably mounted on the crank connecting plate 301 and is located between the two driven cranks 302. The other ends of the two driven cranks 302 and the driving crank 303 are commonly fixed to the tooth extraction connecting rod 304, and the two tooth extractions 3041 on the tooth extraction connecting rod 304 are respectively located below the above-mentioned two driving entrances 5021; the fixed end of the rotational movement driving motor 305 is connected to the crank connecting plate 301, and its driving end passes through the crank connecting plate 301 and is drivingly connected to the driving crank 303. When the rotating moving driving motor 305 drives the active crank 303 to rotate around its motor shaft, the active crank 303 drives the driven crank 302 to rotate through the tooth extraction connecting rod 304. At the same time, the tooth extraction connecting rod 304 swings up counterclockwise with the driven crank 302 and the active crank 303. When the two tooth extractions 3041 rise to the toggle entrance 5021, they contact the side of the notch 602 at the bottom of the tube rack 600 above the toggle entrance 5021, and continue to swing up, thereby pushing the tube rack 600 to move toward the third tray area 503, and then the tooth extraction connecting rod 304 returns to the initial position, that is, completing a cycle of the parallel double crank mechanism. In the present invention, a cycle of the parallel double crank mechanism ends, and the tube rack 600 is designed to move a distance of 000 tubes. Then, this cycle is 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.

[0070] The pipe rack push-out assembly 400 includes a push-out linear guide rail 403 and a second synchronous wheel assembly 402 which are installed on the base plate 100 in parallel along the Y direction. The components and connection relationship of the second synchronous wheel assembly 402 are similar to those of the first synchronous wheel assembly 203, and will not be repeated here. The rotary push-out drive motor 408 is installed on the base plate 100, and its driving end is connected to a synchronous wheel in the second synchronous wheel assembly 402; the push-out linear guide rail 403 is slidably connected with a fixed belt slider 404 and a push rod slider 405 in sequence, and the push rod slider 405 is located near the front end of the crank connecting plate 301.

[0071] A synchronous belt fixing block 4041 is fixedly connected to the fixed belt slider 404, a push rod fixing block 4051 is fixedly connected to the push rod slider 405, a section of the synchronous belt in the second synchronous wheel assembly 402 is fixedly connected to the synchronous belt fixing block 4041; the push rod fixing block 4051 is connected to the push rod 401.

[0072] Furthermore, to monitor the quantity of buffer pipe racks 600 in the third tray area 503, a slider through-hole is formed in the synchronous belt fixing block 4041 parallel to the Y direction. The opening diameter of the slider through-hole on the side facing the push rod fixing block 4051 is small, and the opening diameter on the side far from the push rod fixing block 4051 is large. One end of the floating plug driving screw 406 along its length direction is fixedly connected to the push rod fixing block 4051, and the other end with a screw head thereof 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 driving screw 406 is larger than the diameter of the small opening of the slider through-hole to prevent it from slipping off. The compression spring 407 is sleeved outside the floating plug driving screw 406 and is located in the slider through-hole. Through the connection of the floating plug driving screw 406, the fixing belt slider 404 and the push rod slider 405 are in a mutually attached state. However, if pulled by an external force, the floating plug driving screw 406 can slide along the slider through-hole, separating the fixing belt slider 404 and the push rod slider 405; to monitor whether the fixing belt slider 404 and the push rod slider 405 are separated, a fixing block limiting strip 4092 is provided on the synchronous belt fixing block 4041, and a warning photoelectric induction switch 4091 is provided on the push rod fixing block 4051. When the fixing belt slider 404 and the push rod slider 405 are in a mutually attached state, the fixing block limiting strip 4092 is connected to the warning photoelectric induction switch 4091. If the fixing belt slider 404 and the push rod slider 405 are in a separated state, the fixing block limiting strip 4092 is separated from the warning photoelectric induction switch 4091 and an alarm signal is emitted for reminder.

[0073] Furthermore, to monitor the moving distances of the fixing belt slider 404 and the push rod slider 405, on the base plate, and at both ends of the pushing linear guide 403, a position-in-place photoelectric induction switch 4093 is provided; the fixing block limiting strip 4092 has a double-headed design. One end faces the warning photoelectric induction switch 4091 along the Y direction, and the other end faces the position-in-place photoelectric induction switch 4093 along the Z direction downward. When the fixing block limiting strip 4092 travels to the position-in-place photoelectric induction switch 4093, the fixing belt slider 404 stops moving.

[0074] The push rod 401 includes a rod handle 4011 arranged vertically. The top surface of the rod handle 4011 horizontally extends towards the third tray area 503 and then vertically extends upward to form a push rod surface 4012. The rod handle 4011 is connected to the push rod fixing block 4051 and is located outside the side baffle of the third tray area 503. The push rod surface 4012 moves above or outside the third tray area 503 driven by the rotary pushing drive motor 408 and the second synchronous wheel assembly 402.

[0075] When the pipe rack 600 located in the second pallet area 502 is completely moved to the third pallet area 503 by the pipe rack transfer assembly through a cycle of movement, the rotary movement drive motor 408 drives the synchronous wheel in the second synchronous wheel assembly 402 to rotate, thereby driving the synchronous belt fixed block 4041, the fixed belt slider 404, the push rod slider 405, the push rod fixed block 4051 and the push rod 401 to move backward along the Y direction, thereby pushing the pipe rack 600 located on the third pallet area 503 backward along the Y direction to the rear of the third pallet area 503 to be arranged and cached in sequence. And because of the blocking effect of the rod 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 pipe rack 600 backward along the Y direction by about the width of one pipe rack 600 at a time. When the pipe racks 600 on the third tray area 503 are filled with the preset number, the push rod 401 continues to push in additional pipe racks 600. The push rod fixed block 4051 and the push rod slider 405 connected thereto cannot continue to move backward along the Y direction with the fixed belt slider 404. During the process of the fixed belt slider 404 continuing to move backward along the Y direction without being blocked, the floating plug screw 406 also slides accordingly, thereby separating the push rod slider 405 and the fixed belt slider 404, thereby triggering the early warning photoelectric sensor switch 4091, reminding a manual or robotic arm to take away the cache pipe rack 600 that has been inspected on the third tray area 503.

[0076] The operation process of the present invention is as follows:

[0077] Pipe rack 600 pushes out and loads:

[0078] A plurality of pipe racks 600 to be inspected are placed in the first tray area 501, and the propulsion rotating motor 204 is started, which drives the propulsion bracket 201 to clamp a pipe rack 600 and move forward along the Y direction to the front end of the first tray area 501. At this time, a notch 602 of the pipe rack 600 close to the second tray area 502 is just located above the toggle entrance 5021 on the second tray area 502;

[0079] Tube rack 600 positioning displacement, blood sample detection:

[0080] Start the rotary movement drive motor 305, which drives the parallel double crank mechanism to rotate and rise, causing the tooth-pulling 3041 on the tooth-pulling connecting rod 304 to rise until it contacts the side wall of the notch 602 of the tube rack 600 in the inlet 5021 and then continues to swing, thereby driving the tube rack 600 to move a displacement of a blood collection tube 000 in the X direction. When the blood collection tube 000 in the tube rack 600 moves to the detection position where the above two pairs of opposed sensors 5023 are located, the detection mechanism (not shown) detects the blood sample in the blood collection tube 000; after the detection is completed, it repeats in this way until all the blood collection tubes 000 in the tube racks 600 located in the second tray area 502 are completely detected, and at the same time, the tube racks 600 are all moved to the front end of the third tray area 503 in the X direction;

[0081] Tube rack 600 propulsion buffer:

[0082] Start the rotary push-out drive motor 408, which drives the push rod 401 to push the tube rack 600 backward in the Y direction. The tube rack 600 moves a displacement of about the width of one tube rack 600 and then resets. When the next tube rack 600 is transferred from the second tray area 502, the push rod 401 drives the tube rack 600 to move backward in the Y direction in turn. When there are a preset number of tube racks 600 cached on the third tray area 503 and a newly detected completed tube rack 600 moves to the front end of the third tray area 503, when the push rod 401 pushes the tube rack 600 backward, 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. As a result, the fixed belt slider 404 and the push rod slider 405 are separated, thereby triggering the warning photoelectric induction switch 4091 to remind the operator or the manipulator to take away the cached tube racks 600 that have been detected on the third tray area 503.

[0083] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A transfer device for blood collection tube racks, characterized in that, The invention comprises a bottom plate (100), on which a pipe rack tray (500) is mounted; on the bottom plate and below the pipe rack tray (500), a pipe rack pushing assembly (200), a pipe rack transferring assembly (300) and a pipe rack pushing assembly (400) are sequentially mounted along the X direction; A pipe rack tray (500) located above the pipe rack pushing assembly (200) and the pipe rack pushing assembly (400) is provided with a guide edge (5001) horizontally folded toward its central axis on at least one side along the Y direction; and two shifting entrances (5021) are respectively provided at both ends along the X direction on the pipe rack tray (500) located above the pipe rack transfer assembly (300); The driving end of the pipe rack propulsion assembly (200) is connected to a propulsion bracket (201), and the propulsion bracket (201) is located above the area of the corresponding pipe rack tray (500), and driven by the pipe rack propulsion assembly (200), drives the pipe rack (600) on the pipe rack tray (500) to move along the Y direction; The driving end of the pipe rack transfer assembly (300) is connected to a puller tooth (3041), and the pipe rack transfer assembly (300) drives the puller tooth (3041) to move closer to or away from the puller inlet (5021), so as to drive the pipe rack (600) on the pipe rack tray (500) to move along the X direction; The driving end of the pipe rack pushing assembly (400) is connected to a push rod (401), and the push rod (401) drives the pipe rack (600) on the third tray area (503) to move along the Y direction.

2. The transfer device for blood collection tube racks according to claim 1, wherein, The pipe rack pallet (500) is a dumbbell-shaped one, comprising a first pallet area (501), a second pallet area (502) and a third pallet area (503); two shifting entrances (5021) are respectively provided at both ends of the second pallet area (502) along the X direction; the first pallet area (501) is located above the pipe rack pushing assembly (200), the second pallet area (502) is located above the pipe rack transferring assembly (300), and the third pallet area (503) is located above the pipe rack pushing assembly (400); The first tray area (501) and the third tray area (503) are both rectangular, and their lengths are compatible with the length of a tube rack (600), and their widths are greater than the width of a tube rack (600); the second tray area (502) is a long rectangular, and its length and width are compatible with the length and width of a tube rack (600); and a beam sensor (5023) is provided on the second tray area (502), which is used to detect whether there is a blood collection tube in the tube rack on the second tray area (502) and its moving position.

3. The transfer device for blood collection tube racks according to claim 2, characterized in that, The propulsion support (201) comprises a strip-shaped support base plate (2011) which is arranged parallel to the X direction; the support base plate (2011) is provided with a step surface (2012) protruding upwards at both ends along its length; each step surface (2012) is rotatably connected to a propulsion block (205) via a limiter; the support base plate (2011) is located below the first pallet area (501); the front end of each propulsion block (205) is located above the first pallet area (501); the two front ends of the two propulsion blocks (205) located above the first pallet area (501) form an arm, and the pipe rack (600) moves along the Y direction under the clamping of the arm.

4. A transfer device for a blood collection tube rack according to claim 3, characterized in that, Each of the push-pull blocks (205) is similar to a water drop shape, with a pointed end as the front end, a waist-shaped hole (2051) is provided on the tail end, and two circular limiting holes (2052) are provided on the tail end and in front of the waist-shaped hole (2051). The three are arranged in a similar triangular shape. The limiting member is installed in the waist-shaped hole (2051) and the circular limiting hole (2052) to limit the rotation angle of each push-pull block (205).

5. A blood collection tube rack transfer device according to claim 4, wherein The limiting member comprises two limiting plug bolts (208), a screw (207), and a torsion spring (206); The waist-shaped hole (2051) and the circular limiting hole (2052) close to the inner side are covered on the step surface (2012), and the two limiting plug bolts (208) respectively pass through the waist-shaped hole (2051) and the circular limiting hole (2052) in sequence and then stop in the bracket base plate, so that the push-pull block (205) is rotatably connected to the bracket base plate; Another circular limiting hole (2052) is located outside the step surface (2012), and a screw (207) is fixedly connected to the circular limiting hole (2052); a torsion spring (206) is sleeved on a limiting plug bolt (208) of the circular limiting hole on the inner side, and two ends of the torsion spring (206) are respectively located on the outer sides of the screw (207).

6. The transfer device for blood collection tube racks according to claim 2, wherein The pipe rack transfer assembly (300) comprises a crank connecting plate (301) vertically connected to the bottom plate (100), and a driven crank (302) is rotatably connected to each of the two ends of the crank connecting plate (301) along the X direction on the side facing the second pallet area (502), and a driving crank (303) is rotatably connected between the two driven cranks (302), and a strip-shaped shifting tooth connecting rod (304) is rotatably connected to the two driven cranks (302) and the driving crank (303), and a shifting tooth (3041) is protruding upward at each of the two ends of the shifting tooth connecting rod (304) along the length direction thereof; the position and size of the shifting tooth (3041) are adapted to the position and size of the shifting entrance (5021); The driving end of the rotary driving motor (305) passes through the crank connecting plate (301) and is drivingly connected to the active crank (303). The rotary driving motor (305) drives the active crank (303) to rotate around its motor shaft to drive the two shifting teeth (3041) to move closer to or farther from their corresponding shifting entrances (5021).

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

8. A blood collection tube rack transfer device according to claim 7, characterized in that, A slider through hole is provided in the synchronous belt fixing block (4041) 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 thereof is slidably connected to the slider through hole, and the compression spring (407) is sleeved outside the floating plug screw (406) and is 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 fitted state.

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

10. The transfer device for blood collection tube racks according to claim 1, wherein, Each pipe rack (600) placed on the pipe rack tray (500) is in the shape of a long strip, and a guide groove (6001) matching with the guide edge (5001) is provided on one side along its length direction; A plurality of tube bins (601) are arranged at intervals on the upper end of the tube rack (600), and a notch (602) opening downward is arranged on the bottom surface of the lower end thereof corresponding to the position of each tube bin (601), and the size of the notch (602) is adapted to the size of the toggle inlet (5021).

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