CN217543139U - Rotatory yard device of sweeping - Google Patents

Abstract

The utility model discloses a yard device is swept in rotation relates to sample inspection technical field, and a yard device is swept in rotation includes: a conveying device which comprises a conveying track, a sample tube seat for accommodating a sample tube and a driving part for driving the sample tube seat to move along the conveying track; the code scanning device is used for scanning and identifying the code of the sample tube so as to confirm the sample information of the sample tube; a detector for detecting whether the sample tube is placed on the sample tube seat and the sample tube seat; a stop device for halting movement of the sample tube holder; the rotating device is used for clamping or loosening the sample tube seat and driving the sample tube seat to rotate; the control device, the driving part, the code scanning device, the detector, the stop device and the rotating device are all connected with the control device. The device can improve the scanning operation effect of the sample tube.

Description

Rotatory yard device of sweeping

Technical Field

The utility model relates to a sample test technical field, more specifically say, relate to a yard device is swept in rotation.

Background

In the prior art, when a sample tube is scanned, a sample tube filled with sample liquid is usually placed on a sample tube seat, the sample tube seat can move along a sample introduction track, when the sample tube seat moves to a code scanning position, a clamping device needs to be controlled to clamp the sample tube seat, the clamping device can drive the sample tube seat to rotate, the sample tube seat can be driven to rotate when rotating, the sample tube can be scanned by a code scanning device when rotating, so that the code scanning identification operation of the sample tube is completed, and the sample tube meeting the project requirements can be subjected to subsequent sampling operation.

However, at present, the detection device for detecting the sample tube seat is only arranged at the code scanning position, and there may be a phenomenon that the sample tube is not placed on the sample tube seat, and in such a case, the clamping device and the code scanning device still perform clamping rotation and scanning operation, which may result in invalid operation of the code scanning device, and even result in energy waste caused by continuous operation of the code scanning device.

In summary, how to improve the scanning operation effect of the sample tube is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a rotary code scanning device, which can improve the scanning operation effect of the sample tube

In order to achieve the above object, the present invention provides the following technical solutions:

a rotary code scanning device, comprising:

the conveying device comprises a conveying track, a sample tube seat for accommodating a sample tube and a driving part for driving the sample tube seat to move along the conveying track;

the code scanning device is used for scanning and identifying the code of the sample tube so as to confirm the sample information of the sample tube;

a detector for detecting whether the sample tube holder and the sample tube holder have sample tubes;

a stopping device for stopping the movement of the sample tube base;

the rotating device is used for clamping or loosening the sample tube seat and driving the sample tube seat to rotate;

and the driving part, the code scanning device, the detector, the stop device and the rotating device are all connected with the control device.

Preferably, the rotating device comprises a first fixed block attached to one side of the conveying track, a second fixed block arranged perpendicular to the other side of the conveying track, a guide shaft arranged perpendicular to the first fixed block, a sliding block capable of moving back and forth along the guide shaft, a reciprocating device for driving the sliding block to reciprocate, a first support horizontally arranged on the sliding block, a driven shaft vertically connected with the first support, a driven wheel arranged at the bottom end of the driven shaft, a fixed point sensor for detecting whether a sample tube seat is arranged right in front of the driven wheel, a second support horizontally connected with the first support, a driving shaft vertically connected with the second support, a driving wheel arranged at the bottom end of the driving shaft, a driving piece for driving the driving wheel to rotate, an idler shaft arranged perpendicular to the second fixed block, and a driven idler wheel sleeved on the periphery of the idler shaft;

when the reciprocating device drives the sliding block to move forwards to a preset position, the driving wheel, the driven wheel and the driven idle wheel can form an isosceles triangle for limiting the position of the sample tube seat, and the reciprocating device, the fixed point sensor and the driving piece are all connected with the control device.

Preferably, the reciprocating device comprises a driving spring arranged between the first fixed block and the slider, a cam disc, a cam motor for driving the cam disc to rotate, and a cam follower arranged on the cam disc, wherein the upper half part of the cam follower is in contact with the lower half part of the slider.

Preferably, the driving member is a synchronous belt driving structure.

Preferably, a limit cushion is arranged at the front end of the guide shaft, a limit switch is arranged at the rear end of the guide shaft, a rotary switch is arranged at the first fixed block, the sliding block is provided with a rotary catch for triggering the rotary switch and a limit catch for triggering the limit switch, and the rotary switch and the limit switch are both connected with the control device;

when the rotary blocking piece leaves the rotary switch, the control device controls the driving piece to operate, and when the rotary blocking piece blocks the rotary switch, the control device controls the driving piece to stop operating; when the limit stop sheet covers the limit switch, the control device controls the cam motor to stop running.

Preferably, the detector comprises an upper sensor for detecting whether a sample tube is placed on a sample tube holder and a lower sensor for detecting whether a sample tube holder is on the transport track, and the upper sensor is arranged above the lower sensor.

Preferably, the stopping device comprises a stopping mounting plate arranged on the conveying track, a rotatable stopping motor arranged on the stopping mounting plate and a stopping rod, one end of the stopping rod is connected with the rotating end of the stopping motor, and the other end of the stopping rod is used for abutting against the sample tube seat;

the stop mounting plate is provided with a first limit sensor and a second limit sensor, the first limit sensor is used for detecting whether the stop rod moves to the position parallel to the conveying track, the second limit sensor is used for detecting whether the stop rod moves to the position perpendicular to the conveying track, and the stop motor, the first limit sensor and the second limit sensor are all connected with the control device.

Preferably, the end of the stopping rod is provided with a rolling wheel for contacting with the sample tube seat.

Preferably, a limiting rod is arranged at the second limiting sensor.

Use the utility model provides a when yard device is swept in rotation, the drive division can drive the sample tube socket and drive the sample tube and remove along the delivery track, when the detector does not detect the sample tube socket or detect not put the sample tube on the sample tube socket, controlling means need not to control each parts operation, avoids appearing sweeping yard device operation inefficacy, or sweeps yard device continuation work and causes the extravagant phenomenon of the energy. When the detector detects that the sample tube seat with the sample tube passes through, the control device can control the stop device to operate so as to stop the moving process of the sample tube seat. And then, the control device can control the rotating device to operate so as to clamp the sample tube seat and drive the sample tube seat to rotate circumferentially, and the code scanning device can be ensured to accurately identify and scan the sample tube during circumferential rotation of the sample tube seat.

And if the sample tube is the required sample tube, controlling the rotating device to loosen the sample tube, controlling the stopping device to run reversely, and preventing the sample tube seat from moving any more, so that the sample tube seat can continuously move forwards to the sampling position for sampling operation. And if the sample tube is not the required sample tube, controlling the rotating device to loosen the sample tube seat and controlling the stopping device to run reversely, so that the sample tube seat drives the sample tube to move forwards continuously. And when the sample tube moves to the sampling position, the component of the sampling position does not need to be controlled to operate, so that the sample tube seat drives the sample tube to directly pass through the sampling position and continuously move forwards.

To sum up, the utility model provides a yard device is swept in rotation can improve the scanning operation effect of sample pipe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a rotary code scanning device provided by the present invention;

FIG. 2 is a schematic structural view of a rotating device;

FIG. 3 is a schematic view of the rotating device from another view angle;

FIG. 4 is a front view of a schematic construction of the rotating device;

FIG. 5 is a cross-sectional view showing a structure of a rotating device;

FIG. 6 is a schematic diagram of a detector configuration;

FIG. 7 is a schematic structural view of the stop device;

FIG. 8 is a schematic view of the driven idler;

fig. 9 is a schematic structural diagram of the code scanning device.

In fig. 1-9:

the device comprises a conveying device 1, a conveying track 11, a sample tube seat 12, a code scanning device 2, a detector 3, an upper sensor 31, a lower sensor 32, a fixed support 33, a rotating device 4, a first fixed block 41, a second fixed block 42, a guide shaft 43, a sliding block 44, a reciprocating device 45, a driving spring 451, a cam disc 452, a cam motor 453, a cam follower 454, a first support 46, a driven shaft 47, a driven wheel 48, a fixed point sensor 49, a second support 410, a driving shaft 411, a driving wheel 412, a driving piece 413, a driving motor 4131, a driving synchronous pulley 4132, a motor mounting piece 4133, a driven synchronous pulley 4134, a shaft sleeve 4135, a shaft sleeve limiting piece 4136, a driving synchronous belt 4137, a tensioning piece 4138, an idler shaft 414, a driven buffer pad 415, an idler wheel 416, a limiting switch 417, a rotary switch 418, a rotary switch 419, a rotary stop piece 420, a sample stop tube 5, a stop tube 6, a stop lever mounting plate 66, a stop lever 64, a stop lever sensor 64, a stop lever mounting plate 66, a stop lever and a stop lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a rotatory yard device of sweeping can improve the scanning operation effect of sample pipe.

Please refer to fig. 1 to fig. 9.

This embodiment provides a yard device is swept in rotation, includes:

a transport device 1 including a transport rail 11, a sample tube holder 12 for accommodating the sample tube 5, and a drive portion for driving the sample tube holder 12 to move along the transport rail 11;

the code scanning device 2 is used for scanning and identifying the code of the sample tube 5 so as to confirm the sample information in the sample tube 5;

a detector 3 for detecting whether or not the sample tube 5 is placed on the sample tube holder 12 and the sample tube holder 12;

a stop device 6 for halting the movement of the sample tube holder 12;

a rotating device 4 for clamping or loosening the sample tube holder 12 and driving the sample tube holder 12 to rotate;

the control device, the driving part, the code scanning device 2, the detector 3, the stop device 6 and the rotating device 4 are all connected with the control device.

The detector 3 is used to detect whether the sample tube 5 is placed on the sample tube holder 12, and may include a high-level detection sensor and a low-level detection sensor, where the low-level detection sensor is used to detect whether the sample tube holder 12 is placed on the sample tube holder 12, and the high-level detection sensor is used to detect whether the sample tube 5 is placed on the sample tube holder 12. When the high-level detection sensor and the low-level detection sensor detect the sample tube seat 12 and the sample tube 5 simultaneously, the control device controls the stop device 6 to act, and then controls the code scanning device 2 and the rotating device 4 to perform actions, if only the low-level detection sensor detects the sample tube seat 12, the stop device 6 stops acting, and the sample tube seat 12 can move backwards directly.

The shape, structure, size, material, position and the like of the conveying device 1, the code scanning device 2, the detector 3, the stop device 6, the rotating device 4 and the control device can be determined according to actual conditions and actual requirements in the actual application process.

Use the utility model provides a when yard device is swept in rotation, the drive division can drive sample tube socket 12 and drive sample tube 5 and remove along delivery track 11, when detector 3 does not detect sample tube socket 12 or detect sample tube 5 on the sample tube socket 12 not put, controlling means need not to control each part operation, avoids appearing sweeping yard device 2 operation inefficacy, or sweeps yard device 2 and lasts the phenomenon that the work caused the energy waste. When the detector 3 detects the passage of the sample tube holder 12 holding the sample tube 5, the control device controls the stop device 6 to operate to stop the movement of the sample tube holder 12. Afterwards, the control device can control the rotation device 4 to operate, so as to clamp the sample tube seat 12 and drive the sample tube seat 12 to rotate circumferentially, and since the outer side wall of the sample tube 5 is provided with the identifier for recording the sample information, such as a two-dimensional code or a bar code, when the sample tube seat 12 drives the sample tube 5 to rotate circumferentially, the scanning device 2 can be ensured to accurately identify and scan the sample tube 5.

If the sample tube 5 is the desired sample tube 5, the rotation device 4 is controlled to release the sample tube 5 and the stop device 6 is controlled to run in reverse, no longer preventing the movement of the sample tube holder 12, so that the sample tube holder 12 can continue to move forward to the sampling position for sampling operation. If the sample tube 5 is not the desired sample tube 5, the rotating device 4 is controlled to release the sample tube holder 12 and the stopping device 6 is controlled to operate in reverse direction, so that the sample tube 5 can be driven by the sample tube holder 12 to move forward continuously. When the sample tube 5 is moved to the sampling position, the sample tube holder 12 moves the sample tube 5 directly through the sampling position and continues to move forward without controlling the operation of the sampling position.

To sum up, the utility model provides a yard device is swept in rotation can improve sample pipe 5's scanning operation effect.

On the basis of the above embodiment, preferably, the rotating device 4 includes a first fixed block 41 attached to one side of the conveying track 11, a second fixed block 42 disposed perpendicular to the other side of the conveying track 11, a guide shaft 43 disposed perpendicular to the first fixed block 41, a slider 44 capable of moving back and forth along the guide shaft 43, a reciprocating device 45 for driving the slider 44 to reciprocate, a first support 46 horizontally disposed on the slider 44, a driven shaft 47 vertically connected to the first support 46, a driven wheel 48 disposed at a bottom end of the driven shaft 47, a fixed point sensor 49 for detecting whether a sample tube holder 12 is present in front of the driven wheel 48, a second support 410 horizontally connected to the first support 46, a driving shaft 411 vertically connected to the second support 410, a driving wheel 412 disposed at a bottom end of the driving shaft 411, a driving member 413 for driving the driving wheel 412 to rotate, an idler shaft 414 disposed perpendicular to the second fixed block 42, and a driven idler pulley 415 sleeved on an outer peripheral portion of the idler shaft 414;

when the shuttle 45 drives the slide 44 to advance to a predetermined position, the driving wheel 412, the driven wheel 48 and the driven idle wheel 415 may form an isosceles triangle for limiting the position of the sample tube holder 12, and the shuttle 45, the set point sensor 49 and the driving member 413 are connected to the control device.

Note that the fixed point sensor 49 may be provided on the conveying rail 11 between the driven shaft 47 and the driving shaft 411. When the detector 3 detects that the sample tube base 12 drives the sample tube 5 to pass through, the control device can control the stopping device 6 to act so as to intercept the sample tube base 12, and the sample tube base 12 stops moving when meeting the stopping device 6. When the fixed point sensor 49 detects that there is a sample tube 5 right in front of the fixed point sensor 49, the control device may control the reciprocating device 45 to move forward, so that the driving wheel 412 and the driven wheel 48 cooperate with the driven idle wheel 415 to press the sample tube holder 12 tightly, and control the driving member 413 to operate, so that the driving wheel 412 performs a rotating motion, so that the sample tube holder 12 drives the sample tube 5 to rotate circumferentially, so as to ensure that the code scanning device 2 scans the sample tube 5 fully and completely, after the code scanning device 2 receives the item information of the sample tube 5, the driving member 413 stops rotating, the reciprocating device 45 retracts backward, and the stopping device 6 is reset, so that the scanned sample tube holder 12 and the scanned sample tube 5 pass through the code scanning position smoothly.

Preferably, the reciprocating device 45 includes a driving spring 451 provided between the first fixed block 41 and the slider 44, a cam plate 452, a cam motor 453 for driving the cam plate 452 to rotate, and a cam follower 454 provided on the cam plate 452, an upper half of the cam follower 454 and a lower half of the slider 44 being in abutting contact.

It should be noted that when the cam motor 453 is operated to drive the cam disc 452 to rotate, the cam follower 454 rotates synchronously with the cam disc 452, when the cam follower 454 moves from the front end to the rear end, the cam follower 454 pushes the slider 44 to the rear side, and when the cam follower 454 moves from the rear end to the front end, the cam follower 454 no longer presses the slider 44, and at this time, the slider 44 moves to the front end by the driving spring 451, thereby achieving the back-and-forth reciprocating motion of the slider 44.

Preferably, the driving member 413 is a timing belt driving structure.

It should be noted that the driving member 413 may include a driving motor 4131, a primary synchronous pulley 4132 sleeved on an outer peripheral portion of an output shaft of the driving motor 4131, a motor mounting piece 4133 for mounting the driving motor 4131, a secondary synchronous pulley 4134 disposed in cooperation with the primary synchronous pulley 4132, a driving shaft 411 for connecting the secondary synchronous pulley 4134 and the driving pulley 412 in a penetrating manner, a sleeve 4135 and a sleeve limiting piece 4136 sleeved on an outer peripheral portion of the driving shaft 411, a driving synchronous belt 4137 wound on the outer peripheral portions of the primary synchronous pulley 4132 and the secondary synchronous pulley 4134, and a tensioning piece 4138 for tensioning the driving synchronous belt 4137, and the structure is as shown in fig. 3. When the driving motor 4131 is operated, the primary synchronous pulley 4132, the secondary synchronous pulley 4134 and the driving pulley 412 are synchronously driven to rotate, so as to drive the driven pulley 48, the driven idle pulley 415, the sample tube holder 12 and the sample tube 5 to synchronously rotate.

Preferably, the front end of the guide shaft 43 is provided with a limit cushion 416, the rear end of the guide shaft 43 is provided with a limit switch 417, the first fixing block 41 is provided with a rotary switch 418, the slider 44 is provided with a rotary flap 419 for triggering the rotary switch 418 and a limit flap 420 for triggering the limit switch 417, and both the rotary switch 418 and the limit switch 417 are connected with the control device;

when the rotary baffle 419 leaves the rotary switch 418, the control device controls the driving piece 413 to operate, and when the rotary baffle 419 shields the rotary switch 418, the control device controls the driving piece 413 to stop operating; when the limit switch 417 is shielded by the limit stopper 420, the control device controls the cam motor 453 to stop operating.

It should be noted that under the elastic force of the driving spring 451, the driving wheel 412 and the driven wheel 48 can move forward along the guide shaft 43 at the same time, and when the slider 44 stops after hitting the limit cushion 416 at the front end of the guide shaft 43, the sample tube holder 12 is limited by the isosceles triangle formed by the driving wheel 412, the driven wheel 48 and the driven idle wheel 415. And, the rotation action can be executed under the driving of the driving motor 4131, when the rotation action of the sample tube base 12 is finished, the cam motor 453 can be controlled to operate, so that the driving wheel 412 and the driven wheel 48 are simultaneously pressed back along the guide shaft 43 by the cam follower 454, and when the limit stopper 420 contacts the limit switch 417, the operation of the cam motor 453 is controlled to stop. The rotation switch 418 controls the rotation and stop of the driver 412, and when the rotation stopper 419 is separated from the rotation switch 418, the driver 412 starts rotating, and when the rotation stopper 419 blocks the rotation switch 418, the driver 412 stops rotating.

Preferably, the detector 3 comprises an upper sensor 31 for detecting whether a sample tube 5 is placed on the sample tube holder 12 and a lower sensor 32 for detecting whether a sample tube holder 12 is present on the transport track 11, the upper sensor 31 being arranged above the lower sensor 32. Therefore, the upper sensor 31 and the lower sensor 32 may be fixedly installed by the fixing bracket 33, the upper sensor 31 being provided on the upper side of the fixing bracket 33, and the lower sensor 32 being provided on the lower side of the fixing bracket 33.

It should be noted that, if the lower sensor 32 detects that the sample tube holder 12 is provided and the upper sensor 31 detects that the sample tube holder 12 is loaded with the sample tube 5, the blocking device 6 can be controlled to change from the open state to the closed state, wherein the open state of the blocking device 6 is the state where the blocking rod is parallel to the conveying track 11, and the closed state of the blocking device 6 is the state where the blocking rod is perpendicular to the conveying track 11, so as to ensure that the sample tube holder 12 stops moving under the blocking action of the blocking device 6. If the lower sensor 32 detects that the sample tube seat 12 is arranged, and the upper sensor 31 does not detect the sample tube 5, the stopping device 6 does not perform stopping action, and other components do not perform action, so that the sample tube seat 12 without the sample tube 5 is directly circulated towards the rear end, and operations such as clamping and sampling of an empty tube seat are avoided.

In addition to the above embodiments, preferably, the stopping device 6 includes a stopping mounting plate 61 disposed on the conveying track 11, a rotatable stopping motor 62 disposed on the stopping mounting plate 61, and a stopping rod 63, one end of the stopping rod 63 is connected to a rotating end of the stopping motor 62, and the other end of the stopping rod 63 is used for abutting against the sample tube holder 12;

the stop mounting plate 61 is provided with a first limit sensor 64 and a second limit sensor 65, the first limit sensor 64 is used for detecting whether the stop lever 63 moves to a position parallel to the conveying track 11, the second limit sensor 65 is used for detecting whether the stop lever 63 moves to a position perpendicular to the conveying track 11, and the stop motor 62, the first limit sensor 64 and the second limit sensor 65 are all connected with a control device.

It should be noted that when the stopping device 6 is required to perform the stopping operation, the stopping motor 62 may be controlled to operate to drive the stopping rod 63 to rotate, and when the stopping rod 63 rotates to a position perpendicular to the conveying track 11, the second limit sensor 65 transmits a stop signal to the stopping motor 62, and the stopping rod 63 may prevent the forward transportation process of the sample tube holder 12. When the stopping device 6 is required to stop stopping, the stopping motor 62 can be controlled to run in reverse to drive the stopping rod 63 to rotate in reverse, and when the stopping rod 63 rotates to a position parallel to the conveying track 11, the first limit sensor 64 transmits a stopping signal to the stopping motor 62, and the stopping rod 63 does not prevent the forward transportation process of the sample tube holder 12.

Preferably, the end of the stop rod 63 is provided with a rolling wheel 66 for contacting the sample tube holder 12, and the rolling wheel 66 can effectively clamp the sample tube holder 12 without causing abrasion to the sample tube holder 12.

Preferably, the second limit sensor 65 is provided with a limit rod 67 to ensure that the stop rod 63 can be prevented by the limit rod 67 when rotating to a position perpendicular to the circular track, so as to avoid over-rotation of the stop rod 63.

It should be noted that, in the present application, the first limit sensor 64 and the second limit sensor 65, the first fixing block 41 and the second fixing block 42, and the first bracket 46 and the second bracket 410 are mentioned, wherein the first and the second are only used for distinguishing the difference of the positions, and are not sequentially distinguished.

It should be noted that the directions and positional relationships indicated by "right and left", "vertical", "parallel", and the like in the present application are based on the directions and positional relationships shown in the drawings, and are only for the convenience of simplifying the description and facilitating the understanding, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's the protection scope, does not do here and give unnecessary detail.

It is right above the utility model provides a yard device is swept in rotation has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (9)

1. The utility model provides a yard device is swept in rotation which characterized in that includes:

a transport device (1) comprising a transport track (11), a sample tube holder (12) for accommodating a sample tube (5), and a drive portion for driving the sample tube holder (12) to move along the transport track (11);

a code scanning device (2) for carrying out code scanning identification on the sample tube (5) so as to confirm the sample information of the sample tube (5);

a detector (3) for detecting whether or not the sample tube (5) is placed on the sample tube holder (12) and the sample tube holder (12);

a stop device (6) for halting the movement of the sample tube holder (12);

the rotating device (4) is used for clamping or loosening the sample tube seat (12) and driving the sample tube seat (12) to rotate;

the control device is connected with the driving part, the code scanning device (2), the detector (3), the stop device (6) and the rotating device (4).

2. The rotary code-scanning device according to claim 1, the rotating device (4) comprises a first fixed block (41) attached to one side of the conveying track (11), a second fixed block (42) perpendicular to the other side of the conveying track (11), a guide shaft (43) perpendicular to the first fixed block (41), a sliding block (44) capable of moving back and forth along the guide shaft (43), a reciprocating device (45) used for driving the sliding block (44) to reciprocate, a first support (46) horizontally arranged on the sliding block (44), a driven shaft (47) perpendicularly connected with the first support (46), a driven wheel (48) arranged at the bottom end of the driven shaft (47), a fixed point sensor (49) used for detecting whether a sample tube seat (12) is arranged right in front of the driven wheel (48), a second support (410) horizontally connected with the first support (46), a driving shaft (411) perpendicularly connected with the second support (410), a driven wheel (412) arranged at the bottom end of the driven shaft (411), a driving piece (413) used for driving the driving wheel (412) to rotate, an idler wheel shaft (414) vertically arranged at the second fixed block (42) and an idler wheel shaft (414) sleeved on the outer periphery of the driven shaft (415);

when the reciprocating device (45) drives the sliding block (44) to move forwards to a preset position, the driving wheel (412), the driven wheel (48) and the driven idle wheel (415) can form an isosceles triangle for limiting the position of the sample tube seat (12), and the reciprocating device (45), the fixed point sensor (49) and the driving piece (413) are all connected with the control device.

3. The rotary code scanner according to claim 2, wherein the reciprocator (45) comprises a drive spring (451) provided between the first fixed block (41) and the slider (44), a cam plate (452), a cam motor (453) for driving the cam plate (452) to rotate, and a cam follower (454) provided on the cam plate (452), an upper half of the cam follower (454) being in abutting contact with a lower half of the slider (44).

4. The rotary code scanner according to claim 3, wherein the driving member (413) is a timing belt driving structure.

5. The rotary code scanning device according to claim 4, characterized in that a limit cushion (416) is arranged at the front end of the guide shaft (43), a limit switch (417) is arranged at the rear end of the guide shaft (43), a rotary switch (418) is arranged at the first fixing block (41), the slider (44) is provided with a rotary flap (419) for triggering the rotary switch (418) and a limit flap (420) for triggering the limit switch (417), and the rotary switch (418) and the limit switch (417) are both connected with the control device;

when the rotary baffle (419) leaves the rotary switch (418), the control device controls the driving piece (413) to operate, and when the rotary baffle (419) shields the rotary switch (418), the control device controls the driving piece (413) to stop operating; when the limit baffle (420) covers the limit switch (417), the control device controls the cam motor (453) to stop running.

6. The rotary code scanner according to any of claims 1 to 5, wherein the detector (3) comprises an upper sensor (31) for detecting whether a sample tube (5) is placed on a sample tube holder (12) and a lower sensor (32) for detecting whether a sample tube holder (12) is present on the transport track (11), the upper sensor (31) being arranged above the lower sensor (32).

7. The rotary code scanning device according to any one of claims 1 to 5, characterized in that the stop device (6) comprises a stop mounting plate (61) arranged on the conveying track (11), a rotatable stop motor (62) arranged on the stop mounting plate (61), and a stop rod (63), wherein one end of the stop rod (63) is connected with the rotating end of the stop motor (62), and the other end of the stop rod (63) is used for abutting against the sample tube seat (12);

keep off mounting panel (61) and be equipped with first spacing sensor (64) and second spacing sensor (65), first spacing sensor (64) are used for detecting keep off pole (63) move to with delivery track (11) parallel position, second spacing sensor (65) are used for detecting keep off pole (63) move to with delivery track (11) vertically position, keep off power failure machine (62), first spacing sensor (64) and second spacing sensor (65) all with controlling means connects.

8. The rotary code scanner according to claim 7, characterized in that the end of the stop lever (63) is provided with a roller wheel (66) for contact with the sample tube holder (12).

9. The rotary code scanning device according to claim 7, characterized in that a limit lever (67) is provided at the second limit sensor (65).

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