Sample tube automatic cap removing device

Abstract

The application discloses a kind of sample tube automatic uncovering equipment, including clamping and pulling cover assembly and auxiliary clamping assembly;Clamping and pulling cover assembly includes clamping mechanism and driving mechanism;Clamping mechanism and auxiliary clamping assembly are all provided with contact part;Clamping mechanism is driven by driving mechanism and clamps sample tube with auxiliary clamping assembly;Clamping and pulling cover assembly further includes the cover pulling mechanism being set on clamping mechanism, and cover pulling mechanism moves with clamping mechanism;Cover pulling mechanism includes the tube cover removal plate being connected with driving mechanism, and tube cover removal plate moves under the driving of driving mechanism;After clamping mechanism and auxiliary clamping assembly clamp sample tube, the cap of sample tube is in the activity path of tube cover removal plate;Clamping mechanism is driven by driving mechanism and clamps sample tube with auxiliary clamping assembly, and then the cap of sample tube is opened by the cover pulling mechanism being set on clamping mechanism;So that the application can be suitable for different specifications sample tube's opening work, so that the compatibility of the application is stronger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of life science equipment, more particularly, it relates to a sample tube automatic cover removing device. TECHNICAL BACKGROUND

[0002] In the process of experiment or detection, before the sample is subjected to mass spectrometry analysis, the sample needs to be pretreated, and the first step is to open the cover of the sample vacuum blood collection tube; most of the devices on the market currently adopt manual operation or automatic single-tube clamping and opening methods, which are troublesome and inefficient.

[0003] In addition, some devices for opening the cover of the blood collection tube are too large in size and can only be used for specific specifications of the blood collection tube, resulting in poor compatibility of such devices and inability to be applied to the opening of blood collection tubes of various specifications.

[0004] Therefore, in order to solve these problems, the present application provides an automatic cover removing device which is more efficient, automatic and has better compatibility; solves the problems of difficulty in manual cover pulling, low efficiency of single-tube cover pulling, large size of the device, poor compatibility of the blood collection tube specifications, etc., so as to improve the operation efficiency and accuracy and reduce the risk of human operation errors. SUMMARY

[0005] The present application overcomes the shortcomings of the prior art and provides a sample tube automatic cover removing device which has better compatibility, higher processing efficiency and higher operation accuracy.

[0006] In order to solve the above technical problems, the technical scheme of the present application is as follows:

[0007] A sample tube automatic cover removing device, comprising a sample rack for carrying sample tubes, a clamping and cover pulling assembly and an auxiliary clamping assembly;

[0008] A placement gap for placing the sample rack is arranged between the clamping and cover pulling assembly and the auxiliary clamping assembly;

[0009] The clamping and cover pulling assembly comprises a clamping mechanism and a driving mechanism; the clamping mechanism and the auxiliary clamping assembly are both provided with a contact portion in contact with the sample tube; the clamping mechanism is connected and matched with the driving mechanism and approaches the auxiliary clamping assembly under the driving of the driving mechanism, so that the contact portions of the clamping mechanism and the auxiliary clamping assembly contact and clamp the sample tube on the sample rack;

[0010] The clamping and cover pulling assembly further comprises a cover pulling mechanism arranged on the clamping mechanism, which moves in the horizontal direction with the clamping mechanism; the cover pulling mechanism comprises a cap removing plate connected and matched with the driving mechanism, which moves in the vertical direction under the driving of the driving mechanism; after the clamping mechanism and the auxiliary clamping assembly clamp the sample tube, the cap of the sample tube is in the movement path of the cap removing plate.

[0011] Further, the clamping and cap pulling assembly comprises a mounting frame for mounting the clamping mechanism and the driving mechanism, and the gap is arranged between the mounting frame and the auxiliary clamping assembly;

[0012] The clamping mechanism comprises a clamping push plate, the bottom of the clamping push plate is provided with a sliding block, the top of the mounting frame is provided with a sliding rail matched with the sliding block, and the clamping push plate is slidably connected with the mounting frame through the cooperation of the sliding block and the sliding rail; the clamping push plate is matched with the driving mechanism and moves towards the auxiliary clamping assembly under the driving of the driving mechanism; the contact part of the clamping mechanism is arranged on the side of the clamping push plate close to the auxiliary clamping assembly;

[0013] A sliding hole penetrating the upper and lower ends of the tube sleeve removal plate is arranged on the tube sleeve removal plate, and a vertically arranged sliding rod is arranged on the top of the clamping push plate; the sliding hole is matched with the sliding rod, the sliding hole is penetrated by the sliding rod, and the tube cap removal plate is slidably connected with the sliding rod; the tube cap removal plate is matched with the driving mechanism and moves in the vertical direction along the sliding rod under the driving of the driving mechanism; the tube sleeve removal plate is provided with a removal part in contact with the cap of the sample tube.

[0014] Further, the driving mechanism comprises a driving device, a connecting part and a transmission part; the transmission part is connected with the output end of the driving device and the connecting part, and transmits the force from the driving device to the connecting part; the connecting part is matched with the clamping push plate and the tube cap removal plate, and drives the two to move;

[0015] The driving device adopts a driving motor; the transmission part comprises a transmission shaft, synchronous wheels are arranged on the transmission shaft and the output end of the driving motor, and the synchronous wheels on the transmission shaft and the output end of the driving motor are connected through a synchronous belt;

[0016] The connecting part comprises an eccentric cam, the eccentric cam is provided with a shaft hole and arranged at the two ends of the transmission shaft through the shaft hole; bearing assembly columns are arranged at the two ends of the clamping push plate, and transmission bearings rotatably connected with the bearing assembly columns are arranged on the bearing assembly columns; the arrangement direction of the bearing assembly columns is parallel to the arrangement direction of the transmission shaft; the circumferential surface of the transmission bearing is in contact with the circumferential surface of the eccentric cam;

[0017] The connecting part further comprises a driving link, the two ends of the driving link are rotatably connected with the eccentric cam and the tube sleeve removal plate respectively; the end face of the eccentric cam away from the transmission shaft and the two ends of the tube sleeve removal plate are provided with link locking shafts, and the two ends of the driving link are rotatably connected with the link locking shafts respectively; the link locking shaft on the eccentric cam is located close to the outer edge of the eccentric cam; when the circumferential surface of the eccentric cam away from the shaft hole is in contact with the transmission bearing, the clamping push plate is pushed towards the auxiliary clamping assembly, and at the same time, the driving link also rotates with the eccentric cam to be close to the auxiliary clamping assembly.

[0018] Further, the clamping and cap pulling assembly further comprises a pulling mechanism for pulling the cap off the cap pulling mechanism to other areas;

[0019] The pulling mechanism comprises a cap pulling plate for pulling the cap and a power providing device for driving the cap pulling plate; the cap pulling plate is above the ejection part and is provided with a pulling part for contacting the cap on the side of the cap pulling plate close to the ejection part;

[0020] The pulling mechanism comprises a pulling connecting piece; the pulling connecting piece is connected with the cap pulling plate and the tube sleeve ejection plate respectively, and the cap pulling plate and the tube sleeve ejection plate are rotationally connected through the pulling connecting piece;

[0021] The power providing device comprises a tension spring and a tension spring fixing shaft; one end of the tension spring fixing shaft is connected with the mounting frame on the side away from the auxiliary clamping assembly, the other end of the tension spring fixing shaft is connected with one end of the tension spring, and the other end of the tension spring is connected with the cap pulling plate on the side away from the pulling part;

[0022] In the normal state, the cap pulling plate is perpendicular to the tube sleeve ejection plate; when the driving mechanism drives the clamping push plate and the tube cap ejection plate to move towards the sample tube, the tension spring pulls the cap pulling plate to rotate, so that the pulling part moves towards the direction of the auxiliary clamping assembly and abuts against the cap of the sample tube;

[0023] The pulling mechanism further comprises a pulling plate reset spring, and the two ends of the pulling plate reset spring are connected with the tube sleeve ejection plate and the cap pulling plate respectively.

[0024] Further, a frame assembly is comprised, the frame assembly comprises a support bottom plate, and the mounting frame and the auxiliary clamping assembly are assembled on the support bottom plate; a stop rod is arranged in the placing gap, and a detection micro switch is arranged on the stop rod; when the sample rack is assembled in the placing gap, the sample rack abuts against the stop rod and triggers the detection micro switch.

[0025] Further, a waste collecting mechanism is comprised; the waste collecting mechanism comprises a waste box provided with a waste inlet at the top; the waste box is detachably assembled on the support bottom plate; the auxiliary clamping assembly is between the waste box and the placing gap; a waste box guide strip is arranged on the support bottom plate, and a placing space for placing the waste box is arranged between the waste box guide strip and the waste collecting mechanism; the height of the waste inlet is lower than the height of the top of the auxiliary clamping assembly, and the height of the top of the auxiliary clamping assembly is lower than the height of the ejection part and the pulling part.

[0026] Further, a sample rack adjusting part is further arranged in the placing gap for adjusting the height of the sample rack; the sample rack adjusting part comprises a lifting motor and a support frame for carrying the sample rack; the lifting motor is a lead screw motor; the support frame is connected with the output end of the lifting motor and is adjusted in height under the driving of the lifting motor.

[0027] The sliding block is arranged on the support frame, and a sliding rail matched with the sliding block is arranged on the side surface of the mounting frame facing the placing gap.

[0028] Further, the auxiliary clamping assembly comprises a fixing frame; the contact part of the auxiliary clamping assembly is arranged on one side of the fixing frame close to the clamping push plate; the clamping mechanism and the contact part on the auxiliary clamping assembly are at the same horizontal height;

[0029] The top of the fixing frame is provided with a guide part for guiding the cap of the uncapping mechanism to the waste box;

[0030] When the waste box is in the placing space, the waste box is in contact with and tightly attached to the fixing frame.

[0031] Further, an electrical control assembly is arranged, which comprises an electrical installation plate, a control device, a detection device and a power supply device; the electrical installation plate is arranged at one end of the support bottom plate, and the control device, the detection device and the power supply device are arranged on the electrical installation plate; the control device is connected with and controls the detection device, the driving device, the detection micro switch and the lifting motor; the power supply device is connected with the control device, the detection device, the driving device and the lifting motor and provides power;

[0032] The detection device comprises a height detection sensor and a full waste detection sensor; the height detection sensor is arranged corresponding to the placing gap to detect the height of the support frame and the sample frame; and the full waste detection sensor is arranged corresponding to the placing space to detect the collection state of the waste box.

[0033] Further, support feet are arranged on the bottom of the support bottom plate; the support feet are individually connected with the support bottom plate through threads.

[0034] Beneficial effects:

[0035] In the application, the clamping mechanism clamps the sample tube together with the auxiliary clamping assembly under the driving of the driving mechanism, and then the cap of the sample tube is opened through the uncapping mechanism arranged on the clamping mechanism; thus, the application can be applied to the uncapping work of sample tubes of different specifications, and the compatibility of the application is stronger; meanwhile, through the arrangement of the sample frame, multiple sample tubes can be sent into the uncapping work at one time, and the uncapping efficiency of the application is higher; meanwhile, when the application is used, the operator only needs to put the sample tube into the sample frame and then send the sample frame into the placing gap, and thus the steps of manual operation are reduced, so as to reduce the risk of human operation errors; the uncapping work is automatically carried out by the equipment, so that the accuracy of the application is higher than that of manual operation, and the situation of difficult and troublesome uncapping is not easy to occur, which affects the uncapping efficiency.

[0036] In the application, the clamping push plate and the mounting frame are connected through the cooperation of the sliding block and the sliding rail, and the tube cover removal plate and the sliding rod are connected through sliding; further, the clamping push plate can be clamped with the sample tube by the auxiliary clamping assembly under the driving of the driving mechanism, and then the cap of the sample tube is opened by the tube cover removal plate; meanwhile, the activity path of the clamping push plate and the tube cover removal plate is further limited, so that the application can open the cap more accurately.

[0037] In the application, the driving mechanism comprises a driving device, a connecting part and a transmission part; through the setting of the transmission part, the application can work by the force output by the same driving device to drive the clamping push plate and the tube cover removal plate, thereby reducing the cost of the application.

[0038] In the application, the force of the driving motor is transmitted to the transmission shaft through the setting of the synchronous wheel, and the transmission shaft rotates, and the eccentric cam on the transmission shaft also rotates when the transmission shaft rotates; when the circumferential surface of the eccentric cam away from the shaft hole contacts the transmission shaft, the clamping push plate is pushed to the auxiliary clamping assembly, thereby clamping the sample tube; at the same time, the driving link also rotates to the position close to the auxiliary clamping assembly with the eccentric cam, so that the tube cover removal plate rises and the cap is removed from the sample tube.

[0039] In the application, through the setting of the pulling mechanism, the pulled cap is pushed to other areas, thereby avoiding the influence of the pulled cap on the subsequent removal of the sample tube or the pulling work of the tube cover removal plate on the subsequent sample tube.

[0040] In the application, the cap pushing plate and the tube sleeve removal plate are connected through rotation, so that the cap pushing plate pushes the pulled cap to other areas during rotation; the structure of the pushing mechanism is simpler, and the overall cost of the application is reduced.

[0041] In the application, through the setting of the frame assembly, other components of the application can be assembled to the support bottom plate; the overall transportation of the application is facilitated; meanwhile, through the setting of the stop rod and the detection micro switch on the stop rod, it is convenient for people to confirm whether the sample rack is assembled in place, and the influence of the sample rack not assembled in place on the cap pulling work is avoided as much as possible.

[0042] In the application, through the setting of the waste box, the cap pushing plate pushes the pulled cap to the waste box during rotation, which is convenient for use and cleaning of the application; meanwhile, the height of the waste inlet is lower than the height of the top of the auxiliary clamping assembly, and the height of the top of the auxiliary clamping assembly is lower than the height of the removal part and the pushing part, so that the height problem can be avoided to affect the pulled cap to fall into the waste box.

[0043] In the application, by the setting of the frame adjusting part, the application can adjust the height of the support frame according to the length of the sample tube, and further avoid the situation that the rejection part on the tube sleeve rejection plate cannot contact with the cap of the sample tube due to the too short length of the sample tube, and further make the application applicable to various models of sample tubes, so that the compatibility of the application is better.

[0044] In the application, by the setting of the guide part, the cap pulled down by the cap pulling mechanism falls into the waste box, and when the waste box is placed in the placing space, the waste box is in contact with and close to the fixing frame, so that the gap between the waste box and the fixing frame is avoided to affect the cap falling into the waste box.

[0045] In the application, by the setting of the height detection sensor and the full material detection sensor, the application is more detailed in the working process, which is beneficial to improve the operation efficiency and accuracy.

[0046] In the application, by the setting of the support foot, the application can be placed stably, and the support foot is separately connected with the support bottom plate by threads, so that the equipment can be leveled. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is a structure diagram of the whole application.

[0048] Figure 2 It is a structure diagram of one end of the whole application.

[0049] Figure 3 It is a structure diagram of the other end of the whole application.

[0050] Figure 4 It is a structure diagram of the application without assembling the electrical control assembly.

[0051] Figure 5 It is a structure diagram of Figure 4 It is a structure diagram of the other end.

[0052] Figure 6 It is a structure diagram of the driving mechanism.

[0053] Figure 7 It is a structure diagram of the eccentric cam.

[0054] Figure 8 It is a structure diagram of the tube cap rejection plate.

[0055] Figure 9 It is a structure diagram of the sample frame.

[0056] Mark in the figure:

[0057] 1. sample tube; 2. sample holder; 3. clamping and cap pulling assembly; 4. auxiliary clamping assembly; 5. clamping mechanism; 6. driving mechanism; 7. cap pulling mechanism; 8. poking mechanism; 9. frame assembly; 21. mounting space; 31. mounting holder; 32. motor assembly space; 33. through hole; 34. push plate reset device; 41. fixing holder; 42. guide part; 51. clamping push plate; 52. bearing assembly column; 53. transmission bearing; 54. slide rod; 61. driving device; 62. connecting part; 63. transmission part; 71. tube cap removing plate; 72. slide hole; 73. removing part; 81. cap poking plate; 82. power providing device; 83. poking connecting piece; 84. poking plate reset spring; 91. support bottom plate; 92. waste collecting mechanism; 93. sample holder adjusting part; 94. electrical control assembly; 95. support foot; 101. placing gap; 102. contact part; 103. slide block; 104. slide rail; 105. stop lever; 106. detection micro switch; 341. push plate reset spring; 621. eccentric cam; 622. shaft hole; 623. driving connecting rod; 624. connecting rod locking shaft; 631. transmission shaft; 632. synchronous wheel; 633. synchronous belt; 811. poking part; 821. tension spring; 822. tension spring fixing shaft; 831. first connecting block; 832. second connecting block; 921. waste box; 922. waste inlet; 923. waste box guide strip; 924. placing space; 931. lifting motor; 932. support holder; 941. electrical installation plate; 942. control device; 943. detection device; 944. power supply device; 945. height detection sensor; 946. full material detection sensor. DETAILED DESCRIPTION

[0058] The application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments are only specific illustrations of the application, and the purpose is to enable those skilled in the art to better understand the technical solutions of the application, and should not be regarded as limiting the application.

[0059] In the description of the application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application.

[0060] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0061] Example:

[0062] like Figures 1-9 As shown, an automatic sample tube cap removal device includes a sample rack 2 for carrying sample tubes 1, a clamping and cap removal assembly 3, and an auxiliary clamping assembly 4. A placement gap 101 for placing the sample rack 2 is provided between the clamping and cap removal assembly 3 and the auxiliary clamping assembly 4. The clamping and cap removal assembly 3 includes a clamping mechanism 5 and a driving mechanism 6. Both the clamping mechanism 5 and the auxiliary clamping assembly 4 are provided with contact portions 102 that contact the sample tubes 1. The clamping mechanism 5 is connected to the driving mechanism 6 and, driven by the driving mechanism 6, moves closer to the auxiliary clamping assembly 4, causing the contact portions 102 of the clamping mechanism 5 and the auxiliary clamping assembly 4 to contact and clamp the sample tubes 1 on the sample rack 2. The clamping and cap removal assembly 3 also includes a cap removal mechanism 7 disposed on the clamping mechanism 5, which moves horizontally with the clamping mechanism 5. The cap removal mechanism 7 includes a tube cap rejection plate 71 connected to the driving mechanism 6, which moves vertically under the drive of the driving mechanism 6. After the auxiliary clamping assembly 4 clamps the sample tube 1, the cap of the sample tube 1 is located on the moving path of the cap removal plate 71. In this invention, the clamping mechanism 5, driven by the driving mechanism 6, clamps the sample tube 1 with the auxiliary clamping assembly 4, and then the cap removal mechanism 7 set on the clamping mechanism 5 opens the cap of the sample tube 1. This makes the invention applicable to the capping of sample tubes 1 of different specifications, thus making the invention more compatible. At the same time, the sample rack 2 can be set to feed multiple sample tubes 1 at one time for capping, thus making the capping efficiency of the invention higher. Also, since the operator only needs to put the sample tube 1 into the sample rack 2 and then send the sample rack 2 into the placement gap 101 when using the invention, the manual operation steps are reduced, thereby reducing the risk of human error. The automated capping operation makes the invention more accurate than manual operation, and less prone to difficulties in cap removal, which affects the capping efficiency.

[0063] In the present application, the sample rack 2 is provided with mounting spaces 21 for inserting sample tubes 1, the entrances of the mounting spaces 21 are arranged at the top of the sample rack 2, so that the tube wall and the cap of the sample tube 1 are exposed from the top of the sample rack 2 after the sample tube 1 is inserted into the mounting space 21, which facilitates clamping the sample tube 1 and opening the cap of the sample tube 1, and also facilitates placing the sample tube 1 on the sample rack 2 or taking the sample tube 1 off the sample rack 2.

[0064] In the present application, the clamping and cap-removing assembly 3 comprises a mounting rack 31 for mounting the clamping mechanism 5 and the driving mechanism 6, and the placing gap 101 is arranged between the mounting rack 31 and the auxiliary clamping assembly 4; the clamping mechanism 5 comprises a clamping push plate 51, the bottom of the clamping push plate 51 is provided with a sliding block 103, the top of the mounting rack 31 is provided with a sliding rail 104 matched with the sliding block 103, and the clamping push plate 51 is slidably connected with the mounting rack 31 through the cooperation of the sliding block 103 and the sliding rail 104; the clamping push plate 51 cooperates with the driving mechanism 6 and moves towards the auxiliary clamping assembly 4 under the driving of the driving mechanism 6; the contact part 102 of the clamping mechanism 5 is arranged on the side of the clamping push plate 51 close to the auxiliary clamping assembly 4; the tube cover removing plate 71 is provided with a sliding hole 72 penetrating the upper and lower ends thereof, and a sliding rod 54 is arranged vertically on the top of the clamping push plate 51; the sliding hole 72 is matched with the sliding rod 54, the sliding hole 72 is penetrated by the sliding rod 54, and the tube cover removing plate 71 is slidably connected with the sliding rod 54; the tube cover removing plate 71 cooperates with the driving mechanism 6 and moves vertically along the sliding rod 54 under the driving of the driving mechanism 6; the tube cover removing plate 71 is provided with a removing part 73 in contact with the cap of the sample tube 1; in the present application, the clamping push plate 51 is slidably connected with the mounting rack 31 through the cooperation of the sliding block 103 and the sliding rail 104, and the tube cover removing plate 71 is slidably connected with the sliding rod 54; so that the clamping push plate 51 can clamp the sample tube 1 with the auxiliary clamping assembly 4 under the driving of the driving mechanism 6, and then the cap of the sample tube 1 is opened by the tube cover removing plate 71; and the movement path of the clamping push plate 51 and the tube cover removing plate 71 is further limited, so that the present application can open the cap more accurately.

[0065] It is worth mentioning that the sliding block 103 and the sliding rail 104 can be arranged at other positions of the clamping push plate 51 and the mounting rack 31 according to the requirement when necessary, as long as the clamping push plate 51 can move to clamp the sample tube 1; of course, in some other ways, other cooperation modes can be adopted between the clamping push plate 51 and the mounting rack 31 to realize the movable connection therebetween.

[0066] In the present embodiment, when the clamping mechanism 5 and the auxiliary clamping assembly 4 clamp the sample tube 1 on the sample rack 2, only the cap of the sample tube 1 is in the movement path of the removing part 73, and the tube wall of the sample tube 1 does not contact the tube cover removing plate 71, so that the tube cover removing plate 71 does not damage the sample tube 1 when removing the cap of the sample tube 1.

[0067] In the present application, the driving mechanism 6 comprises a driving device 61, a connecting part 62 and a transmission part 63; the transmission part 63 is connected with the output end of the driving device 61 and the connecting part 62, and transmits the force from the driving device 61 to the connecting part 62; the connecting part 62 cooperates with the clamping push plate 51 and the tube cover removing plate 71, and drives both of them to move; through the setting of the transmission part 63, the present application can drive the clamping push plate 51 and the tube cover removing plate 71 to work through the force output by the same driving device 61, thereby reducing the cost of the present application.

[0068] In the present embodiment, the driving device 61 adopts a driving motor; the transmission part 63 comprises a transmission shaft 631, synchronous wheels 632 are arranged on the transmission shaft 631 and the output end of the driving motor, and the synchronous wheels 632 between the transmission shaft 631 and the output end of the driving motor are connected through a synchronous belt 633; the connecting part 62 comprises an eccentric cam 621, the eccentric cam 621 is provided with a shaft hole 622, and is arranged at both ends of the transmission shaft 631 through the shaft hole 622; bearing assembly columns 52 are arranged at both ends of the clamping push plate 51, and transmission bearings 53 rotationally connected with the bearing assembly columns 52 are arranged on the bearing assembly columns 52; the setting direction of the bearing assembly columns 52 is parallel to the setting direction of the transmission shaft 631; the circumferential surface of the transmission bearings 53 is in contact with the circumferential surface of the eccentric cam 621; the connecting part 62 further comprises a driving connecting rod 623, both ends of the driving connecting rod 623 are rotationally connected with the eccentric cam 621 and the tube cover removing plate respectively; the end face of the eccentric cam 621 away from the transmission shaft 631 and both ends of the tube cover removing plate are provided with connecting rod locking shafts 624, both ends of the driving connecting rod 623 are rotationally connected with the connecting rod locking shafts 624 respectively; the connecting rod locking shaft 624 on the eccentric cam 621 is located close to the outer edge of the eccentric cam 621; in the present application, the force of the driving motor is transmitted to the transmission shaft 631 through the synchronous wheels 632, and the transmission shaft 631 rotates, and the eccentric cam 621 on the transmission shaft 631 also rotates when the transmission shaft 631 rotates; when the circumferential surface of the eccentric cam 621 away from the shaft hole 622 is in contact with the transmission bearing 53, the clamping push plate 51 is pushed to the auxiliary clamping assembly 4, and the sample tube 1 is clamped; at the same time, the driving connecting rod 623 also rotates with the eccentric cam 621 to the position close to the auxiliary clamping assembly 4, so that the tube cover removing plate 71 rises and the cap is removed from the sample tube 1.

[0069] Generally, the connecting rod locking shaft 624 on the eccentric cam 621 is located at the outer edge of the eccentric cam 621 away from the shaft hole 622; in other ways, the connecting rod locking shaft 624 on the eccentric cam 621 can also change its assembly position according to the specific structure of the eccentric cam 621; it should be noted that when the eccentric cam 621 is in contact with the transmission bearing 53 by rotating the circumferential surface away from the shaft hole 622, the clamping push plate 51 is pushed to the auxiliary clamping assembly 4 and the sample tube 1 is clamped; the driving connecting rod 623 needs to be driven by the eccentric cam 621 to approach the auxiliary clamping assembly 4 or to rise, thereby making the tube cover removal plate 71 rise and the cap removed from the sample tube 1.

[0070] In the embodiment, the driving motor is fixed on the mounting frame 31; the motor assembly space 32 is arranged in the mounting frame 31, the driving device 61 is arranged in the motor assembly space 32, the connecting part 62 and the transmission shaft 631 are arranged outside the motor assembly space 32, and the passing opening 33 through which the synchronous belt 633 passes is arranged on the mounting frame 31; the driving motor is protected by the arrangement of the motor assembly space 32.

[0071] In some preferred ways, the notch is arranged on the removal part 73; the inner diameter of the notch is greater than the diameter of the sample tube 1 wall, and the inner diameter of the notch is less than the diameter of the cap; thereby the sample tube 1 is still in the notch when the sample tube 1 is clamped by the present application; the removal part 73 has a larger contact surface with the cap by the arrangement of the notch, which is beneficial to the removal part 73 to remove the cap.

[0072] In the embodiment, the clamping and cap pulling assembly 3 further comprises a push plate reset device 34, the push plate reset device 34 comprises a push plate reset spring 341, and the two ends of the push plate reset spring 341 are respectively connected with the mounting frame 31 and the clamping push plate 51; by the arrangement of the push plate reset spring 341, the clamping push plate 51 is reset under the action of the reset spring after the cap opening work is completed, thereby the sample rack 2 and the sample tube 1 on the sample rack 2 are taken out from the placement gap 101 of the present application; compared with the manual reset mode of the clamping push plate 51, the present mode is more convenient and fast.

[0073] In the present application, the clamping and cap pulling assembly 3 further comprises a pushing mechanism 8 for pushing the cap pulled off by the cap pulling mechanism 7 to other areas, by the arrangement of the pushing mechanism 8, the cap pulled off by the cap pulling mechanism 7 is pushed to other areas, thereby as far as possible to avoid the pulled-off cap affecting the subsequent sample tube 1 or affecting the tube cover removal plate 71 to perform the subsequent cap pulling work of the sample tube 1.

[0074] In the embodiment, the poking mechanism 8 comprises a cap poking plate 81 for poking the cap and a power providing device 82 for driving the cap poking plate 81; the cap poking plate 81 is above the removing part 73, and a poking part 811 for contacting the cap is arranged on the side of the cap poking plate 81 close to the removing part 73; the poking mechanism 8 comprises a poking connecting piece 83; the poking connecting piece 83 is connected with the cap poking plate 81 and the sleeve removing plate respectively, and the cap poking plate 81 and the sleeve removing plate are rotationally connected through the poking connecting piece 83; the rotationally connecting between the cap poking plate 81 and the sleeve removing plate enables the cap poking plate 81 to poke the pulled-off cap to other areas during rotation; the structure of the poking mechanism 8 is simpler, and the cost of the whole invention is reduced; the power providing device 82 comprises a tension spring 821 and a tension spring fixing shaft 822; one end of the tension spring fixing shaft 822 is connected with the side of the mounting frame 31 away from the auxiliary clamping assembly 4, the other end of the tension spring fixing shaft 822 is connected with one end of the tension spring 821, and the other end of the tension spring 821 is connected with the side of the cap poking plate 81 away from the poking part 811; the cap poking plate 81 is perpendicular to the sleeve removing plate in the normal state; when the driving mechanism 6 drives the clamping push plate 51 and the cap removing plate 71 to move towards the sample tube 1, the tension spring 821 pulls the cap poking plate 81 to rotate, so that the poking part 811 moves towards the direction where the auxiliary clamping assembly 4 is arranged and abuts against the cap of the sample tube 1.

[0075] In the embodiment, the poking connecting piece 83 comprises a first connecting block 831 and a second connecting block 832, and the first connecting block 831 and the second connecting block 832 are rotationally connected; the first connecting block 831 and the second connecting block 832 are connected with the surface of the cap poking plate 81 and the upper surface of the sleeve removing plate respectively, so that the cap poking plate 81 and the sleeve removing plate are rotationally connected.

[0076] It is worth mentioning that the poking connecting piece 83 can also be a telescopic rod or the like.

[0077] In the embodiment, the poking mechanism 8 further comprises a poking plate reset spring 84, and the two ends of the poking plate reset spring 84 are connected with the sleeve removing plate and the cap poking plate 81 respectively; so that the cap poking plate 81 of the invention can be reset through the reset spring after the cap is poked to other areas.

[0078] In the embodiment, the poking plate reset spring 84 is a torsion spring, and is arranged at the included angle between the sleeve removing plate and the cap poking plate 81.

[0079] In the application, the frame assembly 9 is arranged, the frame assembly 9 comprises a supporting bottom plate 91, and the mounting rack 31 and the auxiliary clamping assembly 4 are all assembled on the supporting bottom plate 91; through the arrangement of the frame assembly 9, other components of the application can be assembled on the supporting bottom plate 91; the overall transportation of the application is facilitated; the stop rod 105 is arranged in the placing gap 101, the detection micro switch 106 is arranged on the stop rod 105, the sample rack 2 is abutted against the stop rod 105 when being assembled in the placing gap 101, and the detection micro switch 106 is triggered; through the arrangement of the stop rod 105 and the detection micro switch 106 on the stop rod 105, whether the sample rack 2 is assembled in place can be confirmed, and the influence of the sample rack 2 not being assembled in place on the cap pulling work is avoided as much as possible.

[0080] In the application, the waste collecting mechanism 92 is arranged; the waste collecting mechanism 92 comprises a waste box 921, and a waste inlet 922 is arranged at the top of the waste box 921; through the arrangement of the waste box 921, the pulled-off caps are pulled into the waste box 921 during the rotation of the cap pulling plate 81, and the use and cleaning of the application are facilitated; the waste box 921 is detachably assembled on the supporting bottom plate 91, and the caps in the waste box 921 can be further cleaned by a person; the auxiliary clamping assembly 4 is located between the waste box 921 and the placing gap 101; the waste box guiding strip 923 is arranged on the supporting bottom plate 91, and the placing space 924 for placing the waste box 921 is arranged between the waste box guiding strip 923 and the waste collecting mechanism 92; the arrangement of the waste box guiding strip 923 plays a guiding role in the assembly of the waste box 921; the height of the waste inlet 922 is lower than the height of the top of the auxiliary clamping assembly 4, and the height of the top of the auxiliary clamping assembly 4 is lower than the height of the removing part 73 and the pulling part 811, so that the height problem does not affect the pulled-off caps falling into the waste box 921.

[0081] In the application, the sample rack adjusting part 93 is further arranged in the placing gap 101 and used for adjusting the height of the sample rack 2; the sample rack adjusting part comprises a lifting motor 931 and a supporting rack 932 for carrying the sample rack 2; the lifting motor 931 is a lead screw motor; the supporting rack 932 is connected with the output end of the lifting motor 931 and is adjusted in height under the driving of the lifting motor 931; through the arrangement of the sample rack adjusting part, the height of the supporting rack 932 can be adjusted according to the length of the sample tube 1; thus, the situation that the removing part 73 on the tube sleeve removing plate cannot contact the cap of the sample tube 1 due to the too short length of the sample tube 1 is avoided; and thus, the application can be applied to sample tubes 1 of various models, and the compatibility of the application is better.

[0082] In the present application, the sliding block 103 is arranged on the support frame 932, and the slide rail 104 matched with the sliding block 103 is arranged on the side surface of the mounting frame 31 facing the placing gap 101; the movement path of the support frame 932 is further limited, so that the support frame 932 is more stable when conveying the sample frame 2 and the sample tube 1 on the sample frame 2.

[0083] In the present application, the auxiliary clamping assembly 4 includes a fixed frame 41; the contact part 102 of the auxiliary clamping assembly 4 is arranged on the side of the fixed frame 41 close to the clamping push plate 51; the clamping mechanism 5 and the contact part 102 of the auxiliary clamping assembly 4 are at the same horizontal height; and then the clamping mechanism 5 and the auxiliary clamping assembly 4 can clamp the sample tube 1 symmetrically and uniformly, so that the sample tube 1 can be more stable.

[0084] In the present embodiment, the contact part 102 adopts a rubber strip. In addition to being soft, the rubber strip can avoid damage to the sample tube 1 when the clamping mechanism 5 and the auxiliary clamping assembly 4 clamp the sample tube 1, and can also exert a more stable clamping force on the sample tube 1 through the large friction characteristics of the rubber strip itself; the contact part 102 can also adopt other soft materials.

[0085] In the present embodiment, the top of the fixed frame 41 is provided with a guide part 42 guiding the cap removed by the cap pulling mechanism 7 to the waste box 921. Through the arrangement of the guide part 42, the cap removed by the cap pulling mechanism 7 can fall into the waste box 921. Generally, the guide part 42 is arranged obliquely, and the side of the guide part 42 close to the waste box 921 is the lowest.

[0086] In the present embodiment, when the waste box 921 is in the placing space 924, the waste box 921 is in contact with and closely attached to the fixed frame 41, so as to avoid the existence of a gap between the waste box 921 and the fixed frame 41 affecting the cap to fall into the waste box 921.

[0087] In the present application, the electrical control assembly 94 is included, which comprises an electrical installation plate 941, a control device 942, a detection device 943 and a power supply device 944; the electrical installation plate 941 is arranged at one end of the support bottom plate 91, the control device 942, the detection device 943 and the power supply device 944 are all arranged on the electrical installation plate 941; the control device 942 is connected with the detection device 943, the driving device 61, the detection micro switch 106 and the lifting motor 931 and controls them; the power supply device 944 is connected with the control device 942, the detection device 943, the driving device 61 and the lifting motor 931 and provides power; the detection device 943 comprises a height detection sensor 945 and a full material detection sensor 946; the height detection sensor 945 is arranged corresponding to the placing gap 101 to detect the height of the support frame 932 and the sample rack 2; the full material detection sensor 946 is arranged corresponding to the placing space 924 to detect the collection state of the waste box 921, through the arrangement of the height detection sensor 945 and the full material detection sensor 946, the present application is more detailed in the working process, which is beneficial to improve the operation efficiency and accuracy.

[0088] In the present embodiment, the power supply device 944 comprises a power supply interface, which is connected with a power supply through an electric wire.

[0089] In the present embodiment, the control device 942 adopts a control panel; the operator can control the working of the present application through the control panel.

[0090] In the present application, the bottom of the support bottom plate 91 is provided with support feet 95, through the arrangement of the support feet 95, the present application can be placed stably; the support feet 95 are all separately connected with the support bottom plate 91 through threads, thereby facilitating the leveling of the equipment.

[0091] It is worth mentioning that other technical solutions of the present application all belong to the prior art, so they are not described in detail.

[0092] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the concept of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A sample tube automatic decapping apparatus characterized by comprising: The device comprises a sample rack for carrying sample tubes, a clamping and cap-pulling assembly, and an auxiliary clamping assembly; A placement gap for placing the sample rack is arranged between the clamping and cap-pulling assembly and the auxiliary clamping assembly; The clamping and cap-pulling assembly comprises a clamping mechanism, a driving mechanism, and a cap-pulling mechanism for pulling the cap off the cap-pulling mechanism and moving it to another area; The clamping and cap-pulling assembly comprises a mounting rack for mounting the clamping mechanism and the driving mechanism, and the placement gap is arranged between the mounting rack and the auxiliary clamping assembly; The clamping mechanism comprises a clamping push plate, the bottom of the clamping push plate is provided with a sliding block, the top of the mounting rack is provided with a sliding rail matched with the sliding block, and the clamping push plate is slidably connected with the mounting rack through the cooperation of the sliding block and the sliding rail; the clamping push plate is matched with the driving mechanism and moves towards the auxiliary clamping assembly under the driving of the driving mechanism; the contact part of the clamping mechanism is arranged on the side of the clamping push plate close to the auxiliary clamping assembly; The clamping mechanism and the auxiliary clamping assembly are both provided with a contact part for contacting the sample tube; the clamping mechanism is matched with the driving mechanism and moves towards the auxiliary clamping assembly under the driving of the driving mechanism, so that the contact parts of the clamping mechanism and the auxiliary clamping assembly contact and clamp the sample tube on the sample rack; The clamping and cap-pulling assembly further comprises a cap-pulling mechanism arranged on the clamping mechanism, which moves horizontally with the clamping mechanism; the cap-pulling mechanism comprises a cap-removing plate matched with the driving mechanism, which moves vertically under the driving of the driving mechanism; the cap-removing plate is provided with a sliding hole penetrating the upper and lower ends thereof, and a sliding rod is vertically arranged on the top of the clamping push plate; the sliding hole is matched with the sliding rod, the sliding hole is penetrated by the sliding rod, and the cap-removing plate is slidably connected with the sliding rod; the cap-removing plate is provided with a removing part for contacting the cap of the sample tube; after the sample tube is clamped by the clamping mechanism and the auxiliary clamping assembly, the cap of the sample tube is in the moving path of the cap-removing plate; The driving mechanism comprises a driving device, a connecting part, and a transmission part; the transmission part is connected with the output end of the driving device and the connecting part, and transmits the force from the driving device to the connecting part; the connecting part is matched with the clamping push plate and the cap-removing plate, and drives both of them to move; The driving device adopts a driving motor; the transmission part comprises a transmission shaft, synchronous wheels are arranged on the transmission shaft and the output end of the driving motor, and the synchronous wheels on the transmission shaft and the output end of the driving motor are connected through a synchronous belt; The connecting part comprises an eccentric cam, the eccentric cam is provided with a shaft hole and arranged at both ends of the transmission shaft through the shaft hole; bearing assembly columns are arranged at both ends of the clamping push plate, and transmission bearings are rotatably connected with the bearing assembly columns; the arrangement direction of the bearing assembly columns is parallel to the arrangement direction of the transmission shaft; the circumferential surface of the transmission bearing is in contact with the circumferential surface of the eccentric cam; The connecting part further comprises a driving link, both ends of the driving link are rotatably connected with the eccentric cam and the cap-removing plate respectively; the end face of the eccentric cam away from the transmission shaft and both ends of the cap-removing plate are provided with link locking shafts, and both ends of the driving link are rotatably connected with the link locking shafts respectively. The connecting rod locking shaft on the eccentric cam is located close to the outer edge of the eccentric cam; when the eccentric cam is away from the circumferential surface at the shaft hole and contacts the transmission bearing, the clamping push plate is pushed to the auxiliary clamping assembly, and the connecting rod is also driven to rotate with the eccentric cam to be close to the auxiliary clamping assembly; The poking mechanism comprises a cap poking plate of a poking cap and a power providing device for driving the cap poking plate; the cap poking plate is above the ejecting part, and a poking part in contact with the cap is arranged on one side of the cap poking plate close to the ejecting part; The poking mechanism comprises a poking connecting piece; the poking connecting piece is connected with the cap poking plate and the tube cap ejecting plate respectively, and the cap poking plate and the tube cap ejecting plate are rotationally connected through the poking connecting piece; The power providing device comprises a tension spring and a tension spring fixing shaft; one end of the tension spring fixing shaft is connected with one side of the mounting frame away from the auxiliary clamping assembly, the other end of the tension spring fixing shaft is connected with one end of the tension spring, and the other end of the tension spring is connected with one side of the cap poking plate away from the poking part; the cap poking plate is perpendicular to the tube cap ejecting plate in a normal state; when the driving mechanism drives the clamping push plate and the tube cap ejecting plate to move towards the sample tube, the tension spring pulls the cap poking plate to rotate, so that the poking part moves towards the direction where the auxiliary clamping assembly is located and abuts against the cap of the sample tube; the poking mechanism further comprises a poking plate reset spring, and the two ends of the poking plate reset spring are connected with the tube cap ejecting plate and the cap poking plate respectively.

2. The automatic cap removing apparatus for sample tubes according to claim 1, wherein The frame assembly comprises a support bottom plate, and the mounting frame and the auxiliary clamping assembly are assembled on the support bottom plate; a stop rod is arranged in the placing gap, a detection micro switch is arranged on the stop rod, and the sample rack abuts against the stop rod and triggers the detection micro switch when the sample rack is assembled in the placing gap.

3. The sample tube auto-cap removal apparatus of claim 2, wherein, The waste collecting mechanism comprises a waste box provided with a waste inlet at the top; the waste box is detachably assembled on the support bottom plate; the auxiliary clamping assembly is between the waste box and the placing gap; a waste box guide strip is arranged on the support bottom plate, and a placing space for placing the waste box is arranged between the waste box guide strip and the waste collecting mechanism; the height of the waste inlet is lower than the height of the top of the auxiliary clamping assembly, and the height of the top of the auxiliary clamping assembly is lower than the height of the ejecting part and the poking part.

4. The automatic cap removing apparatus for sample tubes according to claim 3, wherein A sample rack adjusting part is further arranged in the placing gap to adjust the height of the sample rack; the sample rack adjusting part comprises a lifting motor and a support frame for carrying the sample rack; the lifting motor is a lead screw motor; the support frame is connected with the output end of the lifting motor and adjusts the height under the driving of the lifting motor; A sliding block is arranged on the support frame, and a sliding rail matched with the sliding block is arranged on the side surface of the mounting frame facing the placing gap.

5. The sample tube auto-cap removal apparatus of claim 4, wherein, The auxiliary clamping assembly comprises a fixing frame; the contact part of the auxiliary clamping assembly is arranged on one side of the fixing frame close to the clamping push plate; the clamping mechanism and the contact part on the auxiliary clamping assembly are at the same horizontal height; A guide part is arranged on the top of the fixing frame to guide the cap pulled by the cap pulling mechanism to the waste box; When the waste box is in the placing space, the waste box is in contact with and closely attached to the fixing frame.

6. The sample tube auto-cap removal apparatus of claim 5, wherein, The electrical control assembly comprises an electrical installation plate, a control device, a detection device and a power supply device; the electrical installation plate is arranged at one end of the support bottom plate, and the control device, the detection device and the power supply device are arranged on the electrical installation plate; the control device is connected with the detection device, the driving device, the detection micro switch and the lifting motor and controls them; the power supply device is connected with the control device, the detection device, the driving device and the lifting motor and provides power; The detection device comprises a height detection sensor and a full-load detection sensor; the height detection sensor is arranged correspondingly to the gap to detect the height of the support frame and the sample frame; The full-load detection sensor is arranged correspondingly to the space to detect the collection state of the waste box.

7. The sample tube auto-cap removal apparatus of claim 2, wherein, The bottom of the support bottom plate is provided with support feet; the support feet are separately connected with the support bottom plate by threads.

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