Test tube shaking device and sample analysis equipment

Abstract

The invention provides a test tube shake-up device and sample analysis equipment, and the test tube shake-up device comprises: a clamping mechanism for clamping or releasing a test tube; the horizontal propelling mechanism is provided with a first section of stroke and a second section of stroke; in the first stroke, the horizontal propelling mechanism is used for driving the clamping mechanism to be close to or far away from the test tube; and in the second stroke, the horizontal propelling mechanism is used for driving the clamping mechanism carrying the test tubes to swing in a vertical plane, and the vertical plane is parallel to the propelling direction of the horizontal propelling mechanism. The shake-up device provided by the invention can replace manual shake-up, realizes automation, and improves the efficiency of the instrument. According to the technical scheme, the sequential movement mode of clamping first and then shaking up effectively prevents the shaking up situation when the test tubes are not clamped or the clamping mechanism is abnormal, effectively avoids the situation that the test tubes fall off or shake away when shaken up, and compared with the prior art, the number of motors is effectively reduced, the cost is reduced, and the space is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of in vitro diagnostic instruments, and in particular relates to a test tube shaking device and sample analysis equipment. Background Art

[0002] In in vitro diagnosis, the patient's whole blood, serum, plasma, peripheral blood and urine are collected as samples, and the samples are tested using sample analysis equipment. The test results are used for clinical auxiliary diagnosis. Whole blood samples can be used for testing without further processing after collection, which can meet the clinical needs of rapid testing and is widely used in the testing of blood routine, coagulation, immunity and other items.

[0003] The collected whole blood samples are prone to sedimentation while waiting for testing. To avoid the sedimentation of the whole blood samples affecting the test results, the operator is usually required to manually shake the samples before testing. However, manual shaking is too inefficient and increases the workload of the operator. Therefore, a test tube shaking device is urgently needed to replace manual shaking. Summary of the invention

[0004] The invention discloses a test tube shaking device and sample analysis equipment to solve the problem of low efficiency in the existing manual shaking.

[0005] In a first aspect of the present application, a test tube shaking device is provided, comprising:

[0006] A clamping mechanism for clamping or releasing the test tube;

[0007] The horizontal propulsion mechanism is provided with a first stroke section and a second stroke section; in the first stroke section, the horizontal propulsion mechanism is used to drive the clamping mechanism to approach or move away from the test tube; in the second stroke section, the horizontal propulsion mechanism is used to drive the clamping mechanism carrying the test tube to swing in a vertical plane, and the vertical plane is parallel to the propulsion direction of the horizontal propulsion mechanism.

[0008] Optionally, the horizontal propulsion mechanism includes:

[0009] a first drive assembly;

[0010] A first sliding assembly, used to slide within the first stroke and the second stroke under the drive of the first driving assembly;

[0011] A second sliding component, used to slide within the first travel section under the push of the first sliding component;

[0012] A limiting member is in contact with the second sliding assembly and is used to limit the second sliding assembly to a critical position between the first stroke section and the second stroke section.

[0013] Optionally, the clamping mechanism is fixedly connected to the second sliding assembly; the clamping mechanism comprises:

[0014] a second drive assembly;

[0015] A clamping jaw, used to clamp or release the test tube at the critical position under the drive of the second driving assembly;

[0016] A clamping jaw connecting piece, rotatably connected to the end of the clamping jaw, and used to fix the clamping jaw;

[0017] An installation shaft is sleeved with the clamping jaw and fixedly connected to the clamping jaw connecting piece;

[0018] The first elastic member is used to provide an elastic force for the clamping jaws to move closer to each other.

[0019] Optional,

[0020] A rack is fixed on one side of the first sliding component;

[0021] A gear is arranged on one side of the installation shaft, and the gear is used to drive the clamping jaw, the clamping jaw connecting member and the first elastic member to swing around the installation shaft in a vertical plane under the transmission of the rack.

[0022] Optionally, the first sliding component includes:

[0023] A slide rail parallel to the propulsion direction of the horizontal propulsion mechanism;

[0024] A first sliding block, slidably disposed on the bottom surface of the sliding rail;

[0025] A slider mounting block, fixedly connected to the first slider;

[0026] A fixed block is fixedly connected to the slider mounting block, the slide rail is arranged in an area between the fixed block and the slider mounting block, and the fixed block and the slider mounting block are used to slide horizontally under the drive of the first driving assembly.

[0027] Optional,

[0028] The fixing block has a first fixing portion and a second fixing portion in the horizontal direction, a fixing shaft is arranged between the first fixing portion and the second fixing portion, one end of the fixing shaft is fixedly connected to the first fixing portion, and the other end is movably connected to the second fixing portion;

[0029] A second elastic member is sleeved on the fixed shaft, and the second elastic member is used to provide a pre-tightening force for the sliding of the clamping mechanism.

[0030] Optionally, the second sliding component includes:

[0031] A second sliding block, slidably disposed on the bottom surface of the slide rail, and used for fixing the clamping mechanism;

[0032] A fork frame is arranged at one end of the clamping mechanism close to the first fixing portion, and is used for abutting against the limiting member and the second elastic member.

[0033] Optionally, brackets for mounting the fixed shaft are provided on both sides of the fork frame, and protrusions are provided on both sides of the limiting member, and the protrusions are used to abut against the brackets when in the critical position.

[0034] Optionally, the test tube shaking device further comprises:

[0035] A base plate, used for fixing the horizontal propulsion mechanism;

[0036] The third driving assembly is used to drive the substrate to move up and down in a vertical direction.

[0037] A second aspect of the present application provides a sample analysis device, comprising a test tube shaking device provided by any one of the implementations of the first aspect.

[0038] It can be seen from the above technical solutions that the shaking device provided by the present application can replace manual shaking, realize automation, and improve the efficiency of the instrument. The sequential movement mode of clamping first and then shaking effectively prevents the test tube from being shaken when it is not clamped or the clamping mechanism is abnormal, and effectively avoids the test tube from falling or flying when shaken.

[0039] In addition, without considering the vertical lifting, the shaking device provided by the prior art is usually provided with three motors, wherein the first motor is used to propel the clamping mechanism, the second motor is used to clamp the test tube, and the third motor is used to shake the test tube. The cost of the three motors is high and requires a large space. The shaking device provided in this embodiment is only provided with two motors, wherein one motor is used to clamp the test tube, and the other motor is used to propel and shake the clamping mechanism, which effectively reduces the number of motors, reduces costs, and saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the main structure of a test tube shaking device provided in an embodiment of the present application;

[0041] Figure 2a A schematic structural diagram of the initial position of a test tube shaking device provided in an embodiment of the present application;

[0042] Figure 2b A schematic diagram of the structure of a test tube shaking device provided in an embodiment of the present application at a critical position between a first stroke and a second stroke;

[0043] Figure 2c A schematic diagram of the structure of a test tube shaking device provided in an embodiment of the present application rising to a shaking position;

[0044] Figure 2d A schematic diagram of the structure of a test tube shaking device provided in an embodiment of the present application for performing a shaking action;

[0045] Figure 3 Another structural schematic diagram of a test tube shaking device provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of the clamping mechanism provided in an embodiment of the present application;

[0047] Figure 5 A schematic diagram of the structure of the rack and gear provided in an embodiment of the present application.

[0048] Figure 6 A schematic diagram of the structure of the limit member and the fork frame provided in an embodiment of the present application.

[0049] Figure markings: 1-clamping mechanism; 2-horizontal propulsion mechanism; 3-base plate; 4-third driving assembly; 11-second driving assembly; 12-clamp; 13-clamp connector; 14-mounting shaft; 15-first elastic member; 111-rotating shaft; 121-stop block; 141-gear; 20-rack; 21-first driving assembly; 22-first sliding assembly; 23-second sliding assembly; 24-limiting member; 221-slide rail; 222-first slider; 223-slider mounting block; 224-fixed block; 231-second slider; 232-fork frame; 2241-first fixed portion; 2242-second fixed portion; 2243-fixed shaft; 2244-second elastic member. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] refer to Figure 1 As shown in the structural schematic diagram, an embodiment of the present application provides a test tube shaking device, including: a clamping mechanism 1, used to clamp or release the test tube; a horizontal propulsion mechanism 2, which is provided with a first stroke and a second stroke; in the first stroke, the horizontal propulsion mechanism 2 is used to drive the clamping mechanism 1 to approach or move away from the test tube; in the second stroke, the horizontal propulsion mechanism 2 is used to drive the clamping mechanism 1 carrying the test tube to swing in a vertical plane, and the vertical plane is parallel to the propulsion direction of the horizontal propulsion mechanism 2.

[0052] In this embodiment, the first stroke and the second stroke are continuous and controlled by the same driving assembly, and the clamping mechanism 1 clamps or releases the test tube at the critical position of the first stroke and the second stroke. Figure 2a Schematic diagram of the structure in the initial position. In the initial position, the shaking device provided in this embodiment is arranged on one side of the test tube and / or the test tube rack. The initial position does not affect the operation of the test tube rack. Figure 2b Schematic diagram of the structure of the critical position of the first and second travel sections. At this critical position, the clamping mechanism 1 can wrap the test tube in the clamping claws, and the clamping mechanism 1 clamps the test tube. The shaking device provided in this embodiment can be raised and lowered in the vertical plane. Figure 2c It is a structural schematic diagram of the test tube shaking device rising to the shaking position, and the test tube is swung at the shaking position to achieve shaking. Figure 2d The schematic diagram of the structure of the test tube shaking device performing the shaking action is that the swinging direction is perpendicular to the plane where the test tube rack is located, that is, parallel to the pushing direction of the horizontal pushing mechanism 2. After the shaking is completed, the test tube returns to the vertical state, the test tube shaking device descends, and the test tube is placed back to the test tube rack, and then the clamping mechanism 1 releases the test tube and returns to the initial position.

[0053] The above is a complete shaking process. It can be seen that the shaking device provided in this embodiment can replace manual shaking, realize automation, and improve the efficiency of the instrument. The sequential movement mode of clamping first and then shaking effectively prevents the test tube from being shaken when it is not clamped or the clamping mechanism is abnormal, and effectively avoids the test tube from falling or flying when shaken.

[0054] In addition, without considering the vertical lifting, the shaking device provided by the prior art is usually provided with three motors, wherein the first motor is used to propel the clamping mechanism, the second motor is used to clamp the test tube, and the third motor is used to shake the test tube. The three motors are relatively expensive and require a large space. The shaking device provided in this embodiment is only provided with two motors, wherein one motor is used to clamp the test tube, and the other motor is used to propel and shake the clamping mechanism, which effectively reduces the number of motors, reduces costs, and saves space.

[0055] refer to Figure 3 As shown in the structural schematic diagram, the horizontal propulsion mechanism 2 includes: a first driving component 21; a first sliding component 22, which is used to slide in the first section of the stroke and the second section of the stroke under the drive of the first driving component 21; a second sliding component 23, which is used to slide in the first section of the stroke under the push of the first sliding component 22; a limiting member 24, which abuts against the second sliding component 23, and is used to limit the second sliding component 23 to the critical position of the first section of the stroke and the second section of the stroke.

[0056] In one feasible manner, the first driving assembly 21 includes a first motor and a screw rod. The output end of the first motor is transmission-connected to the input end of the screw rod, so that the screw rod rotates under the drive of the first motor. A nut is provided on the screw rod, and the rotational motion of the screw rod is converted into the linear motion of the nut, and the direction of the linear motion is perpendicular to the movement direction of the test tube rack.

[0057] In this embodiment, the clamping mechanism 1 is fixedly connected to the second sliding assembly 23. Figure 4 As shown in the structural schematic diagram, the clamping mechanism 1 includes: a second driving component 11; a clamping jaw 12, which is used to clamp or release the test tube at the critical position under the drive of the second driving component 11; a clamping jaw connecting member 13, which is rotatably connected to the end of the clamping jaw 12 and is used to fix the clamping jaw 12; a mounting shaft 14, which is sleeved with the clamping jaw 12 and is fixedly connected to the clamping jaw connecting member 13; a first elastic member 15, whose two ends are respectively fixedly connected to the two clamping jaws 12, and is used to provide an elastic force for the clamping jaws 12 to move closer to each other.

[0058] In an achievable manner, there are two clamping jaws 12, the end of the clamping jaw 12 close to the test tube is an open end, and the end away from the test tube is a terminal end. The clamping jaw connecting member 13 is U-shaped, and the U-shaped opening is opposite to the opening direction of the clamping jaw 12. The terminal end of the clamping jaw 12 is fixed to the open end of the clamping jaw connecting member 13, and the other end of the clamping jaw connecting member 13 is fixed to the mounting shaft 14, thereby fixing the clamping jaw 12.

[0059] The inner side of the clamping jaw 12 is provided with a stopper 121, and the number of the stopper 121 is equal to the number of the clamping jaws 12. The second driving component 11 is provided with a thin flat rotating shaft 111, and the widths of the two adjacent sides of the rotating shaft 111 are different. The A side with a smaller width is smaller than the width between the two stoppers 121, and the B side with a larger width is larger than the width between the two stoppers. In the initial state, the B side with a larger width is parallel to the installation shaft 14, so that the stopper 121 is stretched open, and the clamping jaw 12 is opened to both sides with its end as a fulcrum; when clamping is required, the second driving component 11 drives the rotating shaft 111 to rotate, so that the A side with a smaller width is parallel to the installation shaft 14, and the two clamping jaws 12 are brought closer to each other under the action of the first elastic member 15, and the clamping jaws 12 are closed, thereby achieving the effect of clamping the test tube. When the clamping jaw 12 is in a closed state, there is a small gap between the rotating shaft 111 and the stopper 121 to avoid wear on the clamping jaw 12.

[0060] The first elastic member 15 may be a spring or other elastically deformable parts. When the clamping jaws 12 are opened, the first elastic member 15 generates elastic deformation so as to provide elastic force for the clamping jaws 12 to recover when the clamping jaws 12 are released.

[0061] In this embodiment, the second driving assembly 11 is directly connected to the rotating shaft 111 , and the opening and closing of the clamping jaws 12 are controlled by the cooperation between the rotating shaft 111 and the stopper 121 . Therefore, the overall structure of the clamping mechanism is compact, further saving space.

[0062] refer to Figure 5 As shown in the structural schematic diagram, a rack 20 is fixed on one side of the first sliding component 22; a gear 141 is provided on one side of the mounting shaft 14, and the gear 141 is used to drive the clamping jaw 12, the clamping jaw connecting member 13 and the first elastic member 15 to swing around the mounting shaft 14 in a vertical plane under the transmission of the rack 20.

[0063] In this embodiment, when the first sliding component 22 and the second sliding component 23 slide to the critical position at the same time, the second sliding component 23 stops sliding under the action of the limit member 24, and the first sliding component 22 continues to slide forward in the original direction, that is, drives the rack 20 to move forward, thereby driving the gear 141 to rotate.

[0064] For the sake of convenience, the movement of the first sliding component 22 or the second sliding component 23 towards the test tube is regarded as the "advance" or "advance" or "pushing" direction, which should not be regarded as a limitation to the present application.

[0065] refer to Figure 3 As shown in the structural schematic diagram, the first sliding component 22 includes: a slide rail 221, which is parallel to the propulsion direction of the horizontal propulsion mechanism 2; a first slider 222, which is slidably arranged on the bottom surface of the slide rail 221; a slider mounting block 223, which is fixedly connected to the first slider 222; a fixed block 224, which is fixedly connected to the slider mounting block 223, and the slide rail 221 is penetrated through the area between the fixed block 224 and the slider mounting block 223, and the fixed block 224 slides horizontally under the drive of the first driving component 21, thereby driving the slider mounting block 223 to slide horizontally.

[0066] In this embodiment, the first and second travel sections are controlled by the same motor. To achieve the above purpose, refer to Figure 3As shown in the structural schematic diagram, the fixing block 224 has a first fixing portion 2241 and a second fixing portion 2242 in the horizontal direction. In this embodiment, the first fixing portion 2241 is closer to the test tube than the second fixing portion 2242. A fixing shaft 2243 is provided between the first fixing portion 2241 and the second fixing portion 2242. A second elastic member 2244 is sleeved on the fixing shaft 2243. The second elastic member 2244 is used to provide a pre-tightening force for the sliding of the clamping mechanism 1. During the working process, the fixed shaft 2243 moves in the horizontal plane following the fixed block 224. When the fixed block 224 approaches the second stroke in the first stroke, due to the elastic force of the second elastic member 2244, one side of the second sliding component 23 is pressed by the elastic force, so that the relative position of the clamping mechanism 1 and the fixed block 224 remains unchanged; when reaching the critical position of the first stroke and the second stroke, the second elastic member 2244 stays at the critical position due to the limiting effect of the limiting member 24, and in the second stroke of the fixed block 224, the second elastic member 2244 is compressed; when the fixed block 224 moves from the critical position to the direction away from the second stroke, the compressed second elastic member 2244 gradually recovers its deformation, and before and after the second elastic member 2244 recovers its deformation, one side of the second sliding component 23 is always pressed by the elastic force, thereby providing a sliding preload for the clamping mechanism 1.

[0067] In this embodiment, the fixed shaft 2243 can be connected to the first fixing part 2241 or the second fixing part 2242 in a penetrating manner. The end of the second elastic member 2244 close to the first fixing part 2241 can be separated from the first fixing part 2241 under the action of an external force, and the end of the second elastic member 2244 close to the second fixing part 2242 can be fixedly connected to the second fixing part 2242 or not, as long as it does not affect the sliding of the second elastic member 2244 on the fixed shaft 2243.

[0068] refer to Figure 3 As shown in the structural schematic diagram, the second sliding assembly 23 includes: a second sliding block 231, which is slidably arranged on the bottom surface of the slide rail 221 and is used to fix the clamping mechanism 1; a fork frame 232, which is arranged at one end of the clamping mechanism 1 close to the first fixing portion 2241 and is used to abut against the limiting member 24 and the second elastic member 2244.

[0069] For ease of description, in this embodiment, the approach direction of the horizontal propulsion mechanism 2 to the test tube rack is taken as the propulsion direction, the propulsion direction is taken as the forward direction, and the opposite direction of the propulsion direction is taken as the backward direction.

[0070] The second elastic member 2244 can be a spring or other parts with elastic deformation. In the process of the first sliding component 22 moving in the direction close to the test tube, the second elastic member 2244 pushes the fork frame 232 to move, thereby driving the second sliding component 23 to move in the direction close to the test tube. After reaching the critical position, the first sliding component 22 continues to move forward, and the second elastic member 2244 is compressed. After the test tube is shaken, the first sliding component 22 returns, and during the return process, the second elastic member 2244 gradually restores the elastic deformation; after reaching the critical position, the first sliding component 22 continues to move backward, pushing the fork frame 232 to move backward. Due to the elastic force of the second elastic member 2244, the fork frame 232 is restricted to a position close to the first fixed portion 2241, thereby allowing the clamping mechanism 1 fixedly connected to the first fixed portion 2241 to move smoothly.

[0071] refer to Figure 6 In the structural schematic diagram shown, the fork frame 232 is hollow in the middle, and protrusions 241 are provided on both sides of the limiter 24. When the second sliding assembly 23 reaches the critical position, the protrusions 241 of the limiter 24 collide with the fork frame 232, thereby limiting the second sliding assembly 23 from sliding forward. Furthermore, brackets 2321 for mounting the fixed shaft 2243 are provided on both sides of the fork frame 232. When the bracket 2321 moves toward the test tube rack, it is limited to the critical position after it conflicts with the protrusions 241. The brackets 2321 can be symmetrically arranged, and correspondingly, the mounting shaft 2243 is also symmetrically arranged.

[0072] Optionally, the maximum swing angle of the clamping mechanism 1 carrying the test tube is 120°. In practical applications, the swing angle can be set as required, and the swing time can also be set to meet the need of mixing the whole blood sample.

[0073] Optionally, the test tube shaking device further includes: a base plate 3 for fixing the horizontal propulsion mechanism 2; and a third driving assembly 4 for driving the base plate 3 to rise and fall in the vertical direction. Since the test tube is usually placed on a test tube rack, before the test tube shaking action begins, the test tube needs to be carried up to the shaking position under the drive of the third driving assembly 4. The height of the shaking position shall not affect the shaking action, and the specific height can be set according to the internal space of the sample analysis device.

[0074] This embodiment also provides a sample analysis device, including this embodiment Figure 1 A test tube shaking device provided by any one of the implementation methods shown, therefore, also has all the technical effects of the above-mentioned test tube shaking device, which will not be repeated here.

[0075] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A test tube shaking device, It is characterized in that include: A clamping mechanism for clamping or releasing the test tube; The horizontal propulsion mechanism is provided with a first stroke section and a second stroke section; in the first stroke section, the horizontal propulsion mechanism is used to drive the clamping mechanism to approach or move away from the test tube; in the second stroke section, the horizontal propulsion mechanism is used to drive the clamping mechanism carrying the test tube to swing in a vertical plane, and the vertical plane is parallel to the propulsion direction of the horizontal propulsion mechanism.

2. A test tube shaking device according to claim 1, It is characterized in that The horizontal propulsion mechanism comprises: a first drive assembly; A first sliding assembly, used to slide within the first stroke and the second stroke under the drive of the first driving assembly; A second sliding component, used to slide within the first travel section under the push of the first sliding component; A limiting member is in contact with the second sliding assembly and is used to limit the second sliding assembly to a critical position between the first stroke section and the second stroke section.

3. A test tube shaking device according to claim 2, It is characterized in that The clamping mechanism is fixedly connected to the second sliding assembly; the clamping mechanism comprises: a second drive assembly; A clamping jaw, used to clamp or release the test tube at the critical position under the drive of the second driving assembly; A clamping jaw connecting piece, rotatably connected to the end of the clamping jaw, and used to fix the clamping jaw; An installation shaft is sleeved with the clamping jaw and fixedly connected to the clamping jaw connecting piece; The first elastic member is used to provide an elastic force for the clamping jaws to move closer to each other.

4. A test tube shaking device according to claim 3, It is characterized in that A rack is fixed on one side of the first sliding component; A gear is arranged on one side of the installation shaft, and the gear is used to drive the clamping jaw, the clamping jaw connecting member and the first elastic member to swing around the installation shaft in a vertical plane under the transmission of the rack.

5. A test tube shaking device according to claim 2, It is characterized in that The first sliding assembly comprises: A slide rail parallel to the propulsion direction of the horizontal propulsion mechanism; A first sliding block, slidably disposed on the bottom surface of the sliding rail; A slider mounting block, fixedly connected to the first slider; A fixed block is fixedly connected to the slider mounting block, the slide rail is arranged in an area between the fixed block and the slider mounting block, and the fixed block and the slider mounting block are used to slide horizontally under the drive of the first driving assembly.

6. A test tube shaking device according to claim 5, It is characterized in that The fixing block has a first fixing portion and a second fixing portion in the horizontal direction, and a fixing shaft is arranged between the first fixing portion and the second fixing portion; A second elastic member is sleeved on the fixed shaft, and the second elastic member is used to provide a pre-tightening force for the sliding of the clamping mechanism.

7. A test tube shaking device according to claim 6, It is characterized in that The second sliding assembly comprises: A second sliding block, slidably disposed on the bottom surface of the slide rail, and used for fixing the clamping mechanism; A fork frame is arranged at one end of the clamping mechanism close to the first fixing portion, and is used for abutting against the limiting member and the second elastic member.

8. A test tube shaking device according to claim 7, It is characterized in that Brackets for mounting the fixed shaft are arranged on both sides of the fork frame, and bumps are arranged on both sides of the limiter, and the bumps are used to abut against the brackets when in the critical position.

9. A test tube shaking device according to any one of claims 1 to 8, It is characterized in that The test tube shaking device also includes: A base plate, used for fixing the horizontal propulsion mechanism; The third driving assembly is used to drive the substrate to move up and down in a vertical direction.

10. A sample analysis device, It is characterized in that A test tube shaking device comprising any one of claims 1 to 9.

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