Test tube rotating mechanism and test tube code scanning device

Abstract

The utility model discloses a test tube rotating mechanism and a test tube code scanning device, and relates to the technical field of medical detection equipment. The pressing wheel assembly comprises a support and a swing part, the support is slidably connected to the fixing frame, the swing part is arranged on the support, and the support is provided with a clamping part; the rotating assembly comprises a rotating wheel, a follower is arranged at the top of the rotating wheel and connected with the swing part, the rotating wheel rotates to enable the follower to drive the swing part to move, so that the clamping part abuts against and is tangent to the outer wall of the test tube, the outer side wall of the rotating wheel is used for abutting against and being tangent to the outer wall of the test tube, and the rotating wheel and the clamping part are matched to clamp the test tube; the rotating wheel rotates to rub the test tube and drives the test tube to rotate under the action of friction force, and the test tube rotates to drive the clamping part to rotate under the action of friction force; the driving assembly is in driving connection with the rotating wheel and drives the rotating wheel to rotate; the test tube rotating mechanism provided by the utility model is simple in structure and simple and reliable to control.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection equipment, in particular to a test tube rotating mechanism and a test tube code scanning device. Background Art

[0002] Test tubes are widely used in chemical, biological and clinical medical tests. In order to achieve test tube automation and reduce contamination, in vitro diagnostic testing equipment on the market usually has a certain degree of automation. Since the relative position of the barcode on each test tube placed on the test tube rack may be different, in order to ensure that the barcode on each test tube can be scanned by the scanner installed in a fixed position, it is necessary to ensure that the test tube can rotate one circle or more while scanning the barcode.

[0003] However, the most common technical implementation method currently uses two driving components to respectively realize the actions of "clamping the tube" and "turning the tube". This dual-driving component method has a complex structure and high cost. Therefore, how to quickly realize the test tube code scanning has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The main purpose of the utility model is to provide a test tube rotating mechanism and a test tube code scanning device, aiming to solve the technical problem of how to quickly realize test tube code scanning.

[0005] To achieve the above-mentioned purpose, the test tube rotating mechanism proposed by the utility model comprises:

[0006] Fixed frame;

[0007] A pressure wheel assembly, the pressure wheel assembly comprising a bracket and a swinging member, the bracket is slidably connected to the fixed frame, the swinging member is arranged on the bracket, and the bracket is provided with a clamping portion;

[0008] A rotating assembly, the rotating assembly comprising a rotating wheel, a follower is provided on the top of the rotating wheel, the follower is connected to the swinging member, the rotating wheel rotates so that the follower drives the swinging member to move, so that the clamping part abuts against and is tangent to the outer wall of the test tube, the outer side wall of the rotating wheel is used to abut against and be tangent to the outer wall of the test tube, and the rotating wheel cooperates with the clamping part to clamp the test tube, the rotating wheel rotates to rub the test tube, and drives the test tube to rotate under the action of friction force, and the test tube rotates to drive the clamping part to rotate under the action of friction force; and

[0009] A driving assembly is drivingly connected to the rotating wheel and drives the rotating wheel to rotate.

[0010] In one embodiment, the outer side wall of the rotating wheel includes a driving portion and an avoidance portion extending in a circumferential direction, the diameter of the driving portion is larger than the diameter of the avoidance portion, the driving portion is used to abut the test tube, the central angle formed by the driving portion is greater than or equal to the angle of rotation of the test tube, and the test tube rotation mechanism also includes an optical coupler switch, the optical coupler switch is communicatively connected to the driving assembly, and the optical coupler switch is used to sense the driving portion to generate a control signal.

[0011] In one embodiment, the rotating wheel includes a body and a driving ring, and the driving ring is fixedly sleeved on the outer peripheral side wall of the body.

[0012] In one embodiment, the follower and the rotating wheel are non-coaxially arranged, the swinging member is provided with a connecting hole, and one end of the follower away from the rotating wheel is movably connected to the connecting hole.

[0013] In one embodiment, the bracket is provided with a guide rod, the swing member is slidably connected to the guide rod, and the pressure wheel assembly further includes a reset member, which is sleeved on the guide rod and arranged between the swing member and the bracket.

[0014] In one embodiment, the test tube rotation mechanism includes a guide assembly, the guide assembly includes a guide rail and a support member slidably arranged on the guide rail, the fixed frame includes a crossbeam, one of the crossbeam and the bracket is connected to the support member, and the other is connected to the guide rail.

[0015] In one embodiment, the rotating assembly also includes a rotating shaft, which is connected to the rotating wheel. The driving assembly includes a motor and a transmission part. The output shaft of the motor is connected to the rotating shaft through the transmission part. The motor drives the rotating shaft to rotate through the transmission part, thereby causing the rotating wheel to rotate.

[0016] In one embodiment, the transmission part includes a synchronous belt, a first synchronous wheel and a second synchronous wheel, the first synchronous wheel is connected to the rotating shaft, the second synchronous wheel is connected to the output shaft of the motor, and the synchronous belt connects the first synchronous wheel and the second synchronous wheel respectively.

[0017] In one embodiment, the fixing frame is connected to a bearing seat, a bearing is provided in the bearing seat, and the rotating shaft is rotatably connected to the bearing seat via the bearing.

[0018] The utility model also proposes a test tube code scanning device, which includes a code scanner and a test tube rotating mechanism, wherein the code scanner is used to scan the barcode on the test tube, and the test tube rotating mechanism is the test tube rotating mechanism as described above.

[0019] The technical solution of the utility model drives the rotating wheel to rotate by adopting a driving component, and the rotation of the rotating wheel drives the swinging member to move through the follower, and the movement of the swinging member drives the fixed frame to move so that the clamping part moves toward the test tube and abuts against the outer wall of the test tube, and the outer side wall of the rotating wheel abuts against the outer wall of the test tube. In this way, the rotating wheel cooperates with the clamping part to clamp the test tube. At the same time, the rotation of the rotating wheel can drive the test tube to rotate under the action of friction, and then the driving component drives the rotating wheel to rotate to achieve stable rotation of the test tube, ensuring that the code on the test tube can be scanned, which is convenient for scanning the test tube. The test tube rotating mechanism provided by the utility model only needs the driving component to drive the rotating wheel to rotate unidirectionally to achieve the clamping and rotation of the test tube. The mechanism is simple, and the control is simple and reliable. Furthermore, the rotation of the test tube also drives the clamping part to rotate under the action of friction, avoiding wear on the outer wall of the test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a test tube rotating mechanism provided by the utility model;

[0022] Figure 2 This is a structural schematic diagram of an embodiment of a test tube rotating mechanism driving assembly provided by the utility model;

[0023] Figure 3 This is a structural schematic diagram of an embodiment of a pressure wheel assembly of a test tube rotating mechanism provided by the utility model;

[0024] Figure 4 This is a structural schematic diagram of an embodiment of a test tube code scanning device provided by the utility model;

[0025] Figure 5 This is a side structural schematic diagram of an embodiment of a test tube code scanning device provided by the utility model.

[0026] Description of Figure Numbers:

[0027] 100, fixed frame; 110, crossbeam; 120, bearing seat;

[0028] 200, pressure wheel assembly; 210, bracket; 211, guide rod; 220, swing member; 221, connecting hole; 230, clamping part; 240, reset member;

[0029] 300, rotating assembly; 310, rotating wheel; 311, driving part; 312, avoiding part; 313, main body; 314, driving ring; 320, follower; 330, rotating shaft;

[0030] 400, driving assembly; 410, motor; 420, transmission part; 421, synchronous belt; 422, first synchronous wheel; 423, second synchronous wheel;

[0031] 500, optocoupler switch;

[0032] 600, guide assembly; 610, guide rail; 620, support member;

[0033] 700. Test tube.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] At present, the most common technical implementation method is to use two driving components to respectively realize the actions of "clamping the tube" and "turning the tube". This dual-driving component method has a complex structure and high cost. Therefore, how to quickly realize the scanning of test tubes has become a technical problem that needs to be solved urgently.

[0039] The utility model provides a test tube rotating mechanism.

[0040] See also Figure 1 As shown, in one embodiment of the utility model, the test tube rotating mechanism includes: a fixed frame 100, a pressure wheel assembly 200, a rotating assembly 300 and a driving assembly 400, wherein the pressure wheel assembly 200 includes a bracket 210 and a swinging member 220, the bracket 210 is slidably connected to the fixed frame 100, the swinging member 220 is arranged on the bracket 210, and the bracket 210 is provided with a clamping portion 230; the rotating assembly 300 includes a rotating wheel 310, and a follower 320 is arranged on the top of the rotating wheel 310, and the follower 320 is connected to the swinging member 220, and the rotating wheel 310 rotates The movement causes the follower 320 to drive the swinging member 220 to move, so that the clamping portion 230 abuts against and is tangent to the outer wall of the test tube 700. The outer wall of the rotating wheel 310 is used to abut against and is tangent to the outer wall of the test tube 700, and the rotating wheel 310 cooperates with the clamping portion 230 to clamp the test tube 700. The rotating wheel 310 rotates and rubs the test tube 700, and drives the test tube 700 to rotate under the action of friction force. The test tube 700 rotates and drives the clamping portion 230 to rotate under the action of friction force; the driving component 400 drives the connected rotating wheel 310 and drives the rotating wheel 310 to rotate.

[0041] The technical solution of the utility model drives the rotating wheel 310 to rotate by using the driving component 400, and the rotating wheel 310 rotates to drive the swinging member 220 to move through the follower 320, and the swinging member 220 moves to drive the fixed frame 100 to move so that the clamping part 230 moves toward the test tube 700 and abuts against the outer wall of the test tube 700, and the outer side wall of the rotating wheel 310 abuts against the outer wall of the test tube 700, so that the rotating wheel 310 cooperates with the clamping part 230 to clamp the test tube 700, and at the same time, the rotating wheel 310 rotates under the action of friction force to drive the test tube 700 to rotate, and then the driving component 400 drives the rotating wheel 310 to rotate to achieve stable rotation of the test tube 700, ensuring that the code on the test tube 700 can be scanned, which is convenient for scanning the test tube 700. The test tube rotating mechanism provided by the utility model only needs the driving component 400 to drive the rotating wheel 310 to rotate in one direction to achieve the clamping and rotation of the test tube 700, and the mechanism is simple, and the control is simple and reliable. Furthermore, the rotation of the test tube 700 drives the clamping portion 230 to rotate under the action of friction force, thereby avoiding wear on the outer wall of the test tube 700.

[0042] It should be noted that one end of the bracket 210 extends to the side of the test tube 700 away from the rotating wheel 310, and a clamping portion 230 is provided, so that the clamping portion 230 and the rotating wheel 310 are located on opposite sides of the test tube 700, and cooperate with each other to clamp the test tube 700. The specific structure of the clamping portion 230 is not limited in this embodiment. In the specific implementation process, the clamping portion 230 is two clamping wheels arranged at intervals, and the two clamping wheels are rotatably connected to the bracket 210, and the two clamping wheels have two tangent points with the test tube 700, and the rotating wheel 310 has one tangent point with the test tube 700. The connecting line of the three tangent points forms an isosceles triangle, which can stably clamp the test tube 700. The outer walls of the clamping portion 230 and the rotating wheel 310 are both in contact with the outer wall of the test tube 700, and the rotating wheel 310 and the two clamping wheels cooperate to clamp the test tube 700, so that the rotation of the rotating wheel 310 can drive the test tube 700 to rotate under the action of friction. In order to reduce the damage of the clamping wheel to the test tube 700, the test tube 700 also drives the clamping wheel to rotate synchronously under the action of the friction between the clamping wheel and the test tube 700.

[0043] The follower 320 is protruding from the top of the rotating wheel 310 and connected to the swinging member 220. The following member 320 drives the swinging member 220 to move in the horizontal direction by the rotating wheel 310 rotating in the horizontal direction. In one embodiment, the following member 320 and the rotating wheel 310 form a cam structure. Specifically, the following member 320 and the rotating wheel 310 are non-coaxially arranged. The rotating wheel 310 rotates so that the following member 320 rotates around the axis of the rotating wheel 310, and the following member 320 is movably connected to the swinging member 220, thereby driving the swinging member 220 to move in the horizontal direction. In another embodiment, the following member 320 is a cam structure. The rotating wheel 310 rotates so that the following member 320 rotates synchronously, thereby driving the swinging member 220 to move horizontally.

[0044] Further, refer to Figure 2 As shown, the outer wall of the rotating wheel 310 includes a driving portion 311 and an avoidance portion 312 extending in the circumferential direction, the diameter of the driving portion 311 is larger than the diameter of the avoidance portion 312, the driving portion 311 is used to abut the test tube 700, the central angle formed by the driving portion 311 is greater than or equal to the rotation angle of the test tube 700, and the test tube rotation mechanism also includes an optical coupler switch 500, the optical coupler switch 500 is communicatively connected with the driving assembly 400, and the optical coupler switch 500 is used to sense the driving portion 311 to generate a control signal.

[0045] Specifically, in one embodiment, the driving portion 311 protrudes from the outer wall of the rotating wheel 310, so that the avoidance portion 312 forms an avoidance groove. In another embodiment, a portion of the outer wall of the rotating wheel 310 is provided with an avoidance groove, and the other portion of the outer wall of the rotating wheel 310 forms the driving portion 311. The optical coupler switch 500 includes a transmitting end and a receiving end, the transmitting end transmits light, and the receiving end receives the light emitted by the transmitting end. The transmitting end and the receiving end are respectively located at the upper and lower sides of the rotating wheel 310. When the rotating wheel 310 rotates so that the avoidance portion 312 is located between the transmitting end and the receiving end, the receiving end receives the light, so that the optical coupler switch 500 is triggered and generates a control signal, and the driving component 400 controls the rotating wheel 310 to stop rotating according to the control signal. The initial position of the rotation of the test tube 700 is located at the avoidance portion 312, and the central angle formed by the driving portion 311 is greater than or equal to the rotation angle of the test tube 700. It can be understood that the length of the driving portion 311 extending in the circumferential direction is greater than or equal to the circumference of the test tube 700. In this way, the rotation of the rotating wheel 310 enables the driving portion 311 to drive the test tube 700 to rotate at least one circle, ensuring that the scanner scans all the barcodes on the test tube 700.

[0046] Continue to refer Figure 2 As shown, optionally, the rotating wheel 310 includes a body 313 and a driving ring 314, and the driving ring 314 is fixedly sleeved on the outer peripheral side wall of the body 313. In the specific implementation process, the driving ring 314 is made of materials such as silicone or rubber to avoid damage to the outer wall of the test tube 700. Of course, it can be understood that soft materials such as silicone or rubber can also increase the friction between the driving part 311 and the test tube 700, so that the rotating wheel 310 drives the test tube 700 to rotate synchronously. In one embodiment, the driving part 311 and the avoidance part 312 are formed on the body 313, and the driving ring 314 is relatively thin and fits the outer peripheral wall of the body 313, and the driving ring 314 is bonded to the body 313. In another embodiment, the driving part 311 and the avoidance part 312 are formed on the outer side wall of the driving ring 314, and the driving ring 314 and the body 313 are connected by a limit assembly to limit the displacement of the driving ring 314 and the body 313 in the circumferential direction. The limiting assembly includes a limiting protrusion and a limiting groove, and the limiting protrusion is clamped in the limiting groove to limit the relative displacement of the driving ring 314 and the body 313 in the circumferential direction, so that the body 313 and the driving ring 314 rotate synchronously. It can be understood that the limiting protrusion is set on the outer wall where the body 313 and the driving ring 314 are connected, and the groove is opened in the driving ring 314. In addition, it can be understood that the outer wall of the clamping part 230 can also be sleeved with a silicone protective sleeve.

[0047] Optionally, the follower 320 and the rotating wheel 310 are non-coaxially arranged, the swinging member 220 is provided with a connecting hole 221 , and one end of the follower 320 away from the rotating wheel 310 is movably connected to the connecting hole 221 .

[0048] In the specific implementation process, the follower 320 is arranged on the rotating wheel 310 and is located at the non-rotation center of the rotating wheel 310, and the distance between the follower 320 and the rotation center is set according to the distance that the swinging member 220 needs to move horizontally. The swinging member 220 is connected to the bracket 210, and the bracket 210 is driven to move by the movement of the swinging member 220. In this embodiment, the follower 320 is movably connected in the connecting hole 221 of the swinging member 220, and the connecting hole 221 is a long hole to avoid the displacement of the follower 320 in other directions and avoid the follower 320 driving the swinging member 220 to move in other directions. In the process of the rotating wheel 310 driving the follower 320 to rotate, since the follower 320 and the rotating wheel 310 are not coaxially arranged, the follower 320 will push the swinging member 220 to move horizontally. In order to reduce the friction between the follower 320 and the inner wall of the connecting hole 221 , the follower 320 is connected with a rotating ring, and the outer wall of the rotating ring contacts the inner wall of the connecting hole 221 to reduce the friction between the two.

[0049] refer to Figure 3 As shown, further, the bracket 210 is provided with a guide rod 211, the swing member 220 is slidably connected to the guide rod 211, and the pressure wheel assembly 200 also includes a reset member 240, which is sleeved on the guide rod 211 and arranged between the swing member 220 and the bracket 210. In order to ensure the balance of the swing member 220, the guide rod 211 includes two parallel rods.

[0050] In the specific implementation process, the swing member 220 is slidably connected to the guide rod 211, and the guide rod 211 is sleeved with the reset member 240, which is a spring and is used to drive the swing member 220 to reset. Specifically, in the initial position, the test tube 700 is located in the avoidance portion 312, and the rotating wheel 310 rotates so that the follower 320 drives the swing member 220 to move, and the swing member 220 moves to compress the reset member 240. At the same time, the swing member 220 also drives the bracket 210 to move synchronously, and then the clamping part 230 on the bracket 210 approaches the test tube 700 and clamps the test tube 700 with the rotating wheel 310. When the rotating wheel 310 continues to rotate, the follower 320 will continue to drive the swing member 220 to move. Since the clamping part 230 and the rotating wheel 310 have already clamped the test tube 700, they cannot continue to move. At this time, the swing member 220 will continue to compress the reset member 240. When the follower 320 reaches the farthest distance in the horizontal direction and returns with the rotation of the rotating wheel 310, it drives the swinging member 220 to move in the opposite direction. The swinging member 220 moves in the opposite direction and makes the clamping part 230 move away from the test tube 700, and the test tube 700 stops rotating. When the avoidance part 312 rotates to the optical coupling switch 500, the optical coupling switch 500 cannot detect the driving part 311, so that the driving assembly 400 drives the rotating wheel 310 to stop rotating. In one working cycle, the test tube 700 rotates at least one circle.

[0051] Optionally, the test tube 700 rotation mechanism includes a guide assembly 600, the guide assembly 600 includes a guide rail 610 and a support member 620 slidably disposed on the guide rail 610, and the fixed frame 100 includes a crossbeam 110, one of the crossbeam 110 and the bracket 210 is connected to the support member 620, and the other of the two is connected to the guide rail 610. In this embodiment, the guide rail 610 is installed on the crossbeam 110, and the support member 620 is connected to the bracket 210, so that the bracket 210 moves along the guide rail 610. In the specific implementation process, the extension direction of the crossbeam 110 is consistent with the movement direction of the bracket 210. At the same time, the crossbeam 110 is installed on the crossbeam 110 through the guide assembly 600, and the crossbeam 110 also supports the bracket 210.

[0052] Optionally, the rotating assembly 300 further includes a rotating shaft 330, which is connected to the rotating wheel 310, and the driving assembly 400 includes a motor 410 and a transmission part 420, wherein the output shaft of the motor 410 is connected to the rotating shaft 330 via the transmission part 420, and the motor 410 drives the rotating shaft 330 to rotate via the transmission part 420, thereby rotating the rotating wheel 310. In a specific implementation process, the rotating shaft 330 is fixedly connected to the rotating wheel 310, and the two may be connected by a connecting member such as a screw, or may be connected by a pin or a key, etc., which is not limited in this embodiment.

[0053] The motor 410 is located on one side of the pressure wheel assembly 200 and the rotating assembly 300, and the output shaft of the motor 410 is connected to the transmission part 420, and the transmission part 420 is connected to the rotating shaft 330. In one embodiment, in order to improve the rotation accuracy, reduce the rotation error, and ensure the smooth cooperation of the test tube 700, the rotating wheel 310, the motor 410 and the optical coupler switch 500, the transmission part 420 includes a synchronous belt 421, a first synchronous wheel 422 and a second synchronous wheel 423, the first synchronous wheel 422 is connected to the rotating shaft 330, the second synchronous wheel 423 is connected to the output shaft of the motor 410, and the synchronous belt 421 is respectively connected to the first synchronous wheel 422 and the second synchronous wheel 423. In another embodiment, the transmission part 420 includes a gear set that meshes with each other, and the motor 410 drives the rotating shaft to rotate through the gear set.

[0054] In the specific implementation process, the fixed frame 100 is connected to the bearing seat 120, and the bearing is arranged in the bearing seat 120, and the rotating shaft 330 is rotatably connected to the bearing seat 120 through the bearing. The bearing seat 120 provides stable support for the rotating shaft 330 and the rotating wheel 310, so that the rotating assembly 300 is installed on the fixed frame 100.

[0055] In the embodiment of the utility model, the action of one working cycle is: the motor 410 drives the rotating wheel 310 to start rotating through the transmission part 420, and the rotation of the rotating wheel 310 drives the clamping part 230 to move in the direction close to the test tube 700. After the rotating wheel 310 and the clamping part 230 clamp the test tube 700 in a triangle, the rotating wheel 310 continues to rotate, and the rotation of the rotating wheel 310 will drive the test tube 700 to rotate. Since the bracket 210 can no longer continue to move horizontally, the swing member 220 will move along the guide rod 211 in the direction away from the test tube 700, thereby compressing the spring. In addition, it can also be understood that the elastic force of the spring acts on the test tube 700 through the clamping part 230, so that the force between the rotating wheel 310 and the test tube 700 increases. When the force is greater than the static friction between the two, the rotation of the rotating wheel 310 will drive the test tube 700 to rotate. After the rotating wheel 310 continues to rotate a certain angle, the swing member 220 will move to the maximum position, at which time the elastic force of the spring is the largest. The rotating wheel 310 continues to rotate, and the swinging member 220 moves toward the test tube 700. The spring force gradually decreases. When the swinging member 220 moves to the initial position relative to the guide rod 211, the clamping portion 230 begins to separate from the test tube 700, and the test tube 700 stops rotating. During this process, the test tube 700 rotates at least one circle to ensure that the barcode scanner can read the barcode information of the barcode pasted on the test tube 700. Finally, the rotating wheel 310 continues to rotate, and when the avoidance portion 312 of the rotating wheel 310 reaches the optical coupler switch 500, the rotation stops. At this time, the rotating wheel 310 completes one rotation, and the entire working cycle ends.

[0056] It is understandable that when the initial position is Figure 5 As shown, the avoidance portion 312 of the rotating wheel 310 is arranged opposite to the test tube 700, and the clamping portion 230 is located away from the test tube 700, so as to avoid the test tube 700 from colliding with the rotating wheel 310 and the clamping portion 230 when the test tube 700 moves.

[0057] The utility model also proposes a test tube code scanning device, which can be referred to Figure 4 and Figure 5 As shown, the test tube code scanning device includes a code scanner and a test tube rotating mechanism. The specific structure of the test tube rotating mechanism refers to the above embodiment. Since the test tube code scanning device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the code scanner is located on one side of the test tube, and the code scanning window of the code scanner faces the test tube 700. The test tubes 700 are arranged on a test tube rack, and the test tube rack has an avoidance hole. The scanner scans the barcode on the test tube 700 through the avoidance hole, and the test tube rack moves so that the test tubes 700 are scanned in sequence.

[0058] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A test tube rotating mechanism, characterized in that: include: Fixed frame; A pressure wheel assembly, the pressure wheel assembly comprising a bracket and a swinging member, the bracket is slidably connected to the fixed frame, the swinging member is arranged on the bracket, and the bracket is provided with a clamping portion; A rotating assembly, wherein the rotating assembly comprises a rotating wheel, a follower is provided on the top of the rotating wheel, and the follower is connected to the swinging member. The rotating wheel rotates so that the follower drives the swinging member to move, so that the clamping portion abuts against and is tangent to the outer wall of the test tube. The outer side wall of the rotating wheel is used to abut against and be tangent to the outer wall of the test tube, and the rotating wheel cooperates with the clamping portion to clamp the test tube. The rotating wheel rotates to rub the test tube and drives the test tube to rotate under the action of friction force. The test tube rotates and drives the clamping portion to rotate under the action of friction force. as well as A driving assembly is drivingly connected to the rotating wheel and drives the rotating wheel to rotate.

2. The test tube rotating mechanism according to claim 1, characterized in that: The outer side wall of the rotating wheel includes a driving part and an avoidance part extending in the circumferential direction, the diameter of the driving part is larger than the diameter of the avoidance part, the driving part is used to abut the test tube, the central angle formed by the driving part is larger than or equal to the rotation angle of the test tube, and the test tube rotation mechanism also includes an optical coupler switch, which is communicatively connected to the driving assembly, and the optical coupler switch is used to sense the driving part to generate a control signal.

3. The test tube rotating mechanism according to claim 1 or 2, characterized in that: The rotating wheel comprises a body and a driving ring, and the driving ring is fixedly sleeved on the outer peripheral side wall of the body.

4. The test tube rotating mechanism according to claim 1, characterized in that: The follower and the rotating wheel are non-coaxially arranged, the swinging member is provided with a connecting hole, and one end of the follower away from the rotating wheel is movably connected in the connecting hole.

5. The test tube rotating mechanism according to claim 1 or 4, characterized in that: The bracket is provided with a guide rod, the swing member is slidably connected to the guide rod, and the pressure wheel assembly also includes a reset member, which is sleeved on the guide rod and arranged between the swing member and the bracket.

6. The test tube rotating mechanism according to claim 1, characterized in that: The test tube rotating mechanism includes a guide assembly, which includes a guide rail and a support member slidably arranged on the guide rail. The fixed frame includes a crossbeam, one of the crossbeam and the bracket is connected to the support member, and the other is connected to the guide rail.

7. The test tube rotating mechanism according to claim 1, characterized in that: The rotating assembly also includes a rotating shaft, which is connected to the rotating wheel. The driving assembly includes a motor and a transmission part. The output shaft of the motor is connected to the rotating shaft through the transmission part. The motor drives the rotating shaft to rotate through the transmission part, thereby rotating the rotating wheel.

8. The test tube rotating mechanism according to claim 7, characterized in that: The transmission part includes a synchronous belt, a first synchronous wheel and a second synchronous wheel, the first synchronous wheel is connected to the rotating shaft, the second synchronous wheel is connected to the output shaft of the motor, and the synchronous belt is respectively connected to the first synchronous wheel and the second synchronous wheel.

9. The test tube rotating mechanism according to claim 7, characterized in that: The fixing frame is connected with a bearing seat, a bearing is arranged in the bearing seat, and the rotating shaft is rotatably connected to the bearing seat through the bearing.

10. A test tube code scanning device, characterized in that: The test tube code scanning device comprises a code scanner and a test tube rotating mechanism, wherein the code scanner is used to scan the barcode on the test tube, and the test tube rotating mechanism is the test tube rotating mechanism as described in any one of claims 1-9.

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