A single motor driven knuckle gear transmission rotating code scanning device

Abstract

The application relates to the technical field of medical devices, in particular to a single-motor-driven knuckle gear transmission rotating code scanning device, which comprises a supporting assembly, a rotating assembly, a guiding assembly, a control assembly and a code scanner; the control assembly is used for controlling the start and stop of the rotating assembly; the test tube on the test tube rack is driven to rotate by the rotating assembly, so that the bar code faces the code scanner; the bar code on the test tube is scanned by the code scanner; the application can realize automatic orientation without manual placement when the bar code on the test tube is scanned; any test tube with a bar code can be scanned by the code scanner; it can be understood that the foregoing scheme reduces the use of motors, reduces the complexity of the control circuit, reduces the failure rate, reduces the volume of the whole module, improves the module compatibility, can be compatible with the use requirements of test tubes of various different specifications and different sizes, can judge whether the test tube rack has test tubes, and improves the identification efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a single-motor driven knuckle gear transmission rotary barcode scanning device. Background Technology

[0002] With the increasing maturity of in vitro diagnostic medical device technology, achieving fully automated testing has become a key research and development goal. The primary challenge in achieving fully automated testing is the ability to automatically read sample identification information for use in linking subsequent test results, facilitating result storage and processing. Currently, in most applications, barcodes are typically affixed to the outer wall of the test tube to mark its ownership information. The instrument obtains this information by reading the barcode on the tube wall. Currently, fully automated in vitro diagnostic instruments use a barcode scanner mounted on the instrument. The test tubes are fed into the instrument via a tube rack with an opening, allowing the scanner to scan the barcode. However, this method requires the barcode-covered side of the test tube to face the opening of the tube rack for the scanner to read the barcode. This necessitates manual correction of the test tube orientation, which is cumbersome. Summary of the Invention

[0003] The purpose of this invention is to provide a single-motor driven knuckle gear transmission rotary barcode scanning device that eliminates the need for manual orientation when scanning barcodes on test tubes, allowing any test tube with a barcode to be scanned.

[0004] To achieve the above objectives, the present invention provides a single-motor driven knuckle gear transmission rotary barcode scanning device, including a support assembly, a rotating assembly, a guiding assembly, a control assembly, and a barcode scanner;

[0005] The rotating component is disposed on the supporting component, the guiding component is disposed on the side of the rotating component, and the control component is disposed on the top of the supporting component; the barcode scanner is disposed on the side of the supporting component.

[0006] The support assembly includes a base mounting plate, a support plate, a barcode scanner mounting plate, and a reset optocoupler cover.

[0007] The support plate and the base mounting plate are fixedly connected and located on the side of the base mounting plate; the barcode scanner mounting plate and the support plate are fixedly connected and located on the side of the support plate; the reset optocoupler cover and the support plate are fixedly connected and located on the side of the support plate.

[0008] The support assembly also includes a cover plate;

[0009] The cover plate and the support plate are fixedly connected and located on the side of the support plate.

[0010] The rotating assembly includes a motor, a drive gear shaft, a first gear shaft mounting plate, a drive gear, a first one-way bearing, a cam, an encoder, a drive wheel base plate, a drive wheel shaft seat, a drive wheel, an optical coupler baffle, a second gear shaft mounting plate, a second one-way bearing, an output gear, a rubber sleeve, a linkage shaft, a linkage gear and a slotted optical coupler, an optical coupler mounting plate and a reset optical coupler;

[0011] The motor is fixedly mounted above the support plate; the drive gear shaft is fixedly connected to the motor output end and located on one side of the motor; the first gear shaft mounting plate is rotatably mounted on the drive gear shaft; the drive gear is sleeved on the drive gear shaft and located below the first gear shaft mounting plate; the first one-way bearing is disposed between the drive gear shaft and the cam; the encoder is fixedly mounted on the side of the cam; the drive wheel base plate is disposed on the guide assembly; the drive wheel shaft seat is fixedly mounted below the drive wheel base plate; the drive wheel is rotatably mounted on the drive wheel shaft seat; the optocoupler baffle is fixedly mounted on the drive wheel shaft seat. The second gear shaft mounting plate is rotatably mounted on the journal of the driving gear; the second one-way bearing is disposed between the journal of the driving gear and the output gear; the rubber sleeve is fixedly disposed on the side of the output gear; the linkage shaft is rotatably connected to the first gear shaft mounting plate and the second gear shaft mounting plate respectively, and passes through the first gear shaft mounting plate and the second gear shaft mounting plate; the linkage gear is fixedly connected to the linkage shaft and meshes with the driving gear and the output gear; the slotted optical coupler is disposed below the support plate; the optical coupler mounting plate is fixedly disposed below the support plate, and the reset optical coupler is disposed on the side of the support plate.

[0012] The guide assembly includes a double slider linear guide, a driven wheel base plate, two driven wheels, a first tension spring, and a second tension spring.

[0013] The dual-slider linear guide is disposed below the support plate; the driven wheel base plate is disposed on the side of the dual-slider linear guide; the two driven wheels are respectively rotatably disposed on the side of the driven wheel base plate; one end of the first tension spring is connected to the support plate, and the other end is hinged to the driven wheel base plate; one end of the second tension spring is connected to the support plate, and the other end is hinged to the driving wheel base plate.

[0014] The control component includes a circuit board mounting plate, a circuit board cover plate, and a control circuit board.

[0015] The circuit board mounting plate and the support plate are fixedly connected and located above the support plate; the circuit board cover plate and the circuit board mounting plate are fixedly connected and located above the circuit board mounting plate; the control circuit board is disposed on the circuit board mounting plate.

[0016] This invention discloses a single-motor driven knuckle gear-driven rotary barcode scanning device. A support assembly supports the rotating component, the guiding component, the control component, and the barcode scanner. The guiding component provides guidance for the rotating component, and the control component controls the start and stop of the rotating component. The rotating component drives the test tubes on the test tube rack to rotate, causing the barcodes to face the barcode scanner. The barcode scanner then scans the barcodes on the test tubes. This invention eliminates the need for manual orientation when scanning barcodes on test tubes, allowing any test tube with a barcode to be scanned. It is understood that the aforementioned solution reduces the use of motors, lowers the complexity of the control circuit, reduces the failure rate, reduces the overall module size, and improves module compatibility. It can accommodate the usage requirements of test tubes of various specifications and sizes, and can also determine whether there are test tubes on the test tube rack, improving recognition efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the working state of a single-motor driven knuckle gear rotary scanning device according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a single-motor driven knuckle gear rotary scanning device according to the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of a single-motor driven knuckle gear rotary barcode scanning device of the present invention, excluding the circuit board cover.

[0021] Figure 4 This is a schematic diagram of the structure of a single-motor driven knuckle gear rotary barcode scanning device of the present invention, excluding control components.

[0022] Figure 5 yes Figure 4 A sectional view along AA.

[0023] Figure 6 This is a schematic diagram of the rotating component of the present invention.

[0024] Figure 7 This is a left-side cross-sectional view of the rotating component of the present invention.

[0025] Figure 8 This is a right-side cross-sectional view of the rotating component of the present invention.

[0026] 1-Support assembly, 2-Rotating assembly, 3-Guide assembly, 4-Control assembly, 5-Bar scanner, 6-Base mounting plate, 7-Support plate, 8-Bar scanner mounting plate, 9-Reset optocoupler cover, 10-Cover plate, 11-Motor, 12-Drive gear shaft, 13-First gear shaft mounting plate, 14-Drive gear, 15-First one-way bearing, 16-Cam, 17-Code disk, 18-Drive wheel base plate, 19-Drive wheel shaft seat, 20-Drive wheel, 2 1-Optical coupler baffle, 22-Second gear shaft mounting plate, 23-Second one-way bearing, 24-Output gear, 25-Rubber sleeve, 26-Linkage shaft, 27-Linkage gear, 28-Slotted optical coupler, 29-Optical coupler mounting plate, 30-Reset optical coupler, 31-Double slider linear guide rail, 32-Driven wheel base plate, 33-Driven wheel, 34-First tension spring, 35-Second tension spring, 36-Circuit board mounting plate, 37-Circuit board cover, 38-Control circuit board. Detailed Implementation

[0027] The first embodiment of this application is as follows:

[0028] Please see Figures 1-8 ,in, Figure 1 This is a schematic diagram of the structure of a single-motor driven finger-gear transmission rotary barcode scanning device under working conditions according to the present invention. Figure 2 This is a schematic diagram of the structure of a single-motor driven finger-gear transmission rotary barcode scanning device according to the present invention. Figure 3 This is a schematic diagram of the structure of a single-motor driven knuckle gear rotary barcode scanner of the present invention, excluding the circuit board cover. Figure 4 This is a schematic diagram of the structure of a single-motor driven knuckle gear rotary barcode scanning device of the present invention, excluding control components. Figure 5 yes Figure 4 A sectional view along AA, Figure 6 This is a schematic diagram of the rotating component of the present invention. Figure 7 This is a left-side cross-sectional view of the rotating component of the present invention. Figure 8 This is a right-side cross-sectional view of the rotating component of the present invention.

[0029] This invention provides a single-motor driven knuckle gear transmission rotary barcode scanning device, comprising a support assembly 1, a rotating assembly 2, a guiding assembly 3, a control assembly 4, and a barcode scanner 5; the support assembly 1 includes a base mounting plate 6, a support plate 7, a barcode scanner mounting plate 8, a reset optocoupler cover 9, and a cover plate 10; the rotating assembly 2 includes a motor 11, a drive gear shaft 12, a first gear shaft mounting plate 13, a drive gear 14, a first one-way bearing 15, a cam 16, a code disk 17, a drive wheel base plate 18, a drive wheel shaft seat 19, a drive wheel 20, an optocoupler baffle 21, a second gear shaft mounting plate 22, a second one-way bearing 23, an output gear 24, a rubber sleeve 25, a linkage shaft 26, a linkage gear 27, and a slotted optocoupler 28, and an optocoupler housing. The mounting plate 29 and reset optocoupler 30 are included; the guide assembly 3 includes a double slider linear guide rail 31, a driven wheel base plate 32, two driven wheels 33, a first tension spring 34 and a second tension spring 35; the control assembly 4 includes a circuit board mounting plate 36, a circuit board cover plate 37 and a control circuit board 38; the aforementioned solution eliminates the need for manual orientation when scanning barcodes on test tubes, allowing any test tube with a barcode to be scanned. It is understood that the aforementioned solution reduces the use of motor 11, lowers the complexity of the control circuit, reduces the failure rate, reduces the overall module size, improves module compatibility, and can accommodate the usage requirements of various specifications and sizes of test tubes. It can also determine whether there are test tubes in the test tube rack, improving recognition efficiency.

[0030] In this specific embodiment, the rotating component 2 is disposed on the supporting component 1, the guiding component 3 is disposed on the side of the rotating component 2, and the control component 4 is disposed on the top of the supporting component 1; the barcode scanner 5 is disposed on the side of the supporting component 1. The supporting component 1 supports the rotating component 2, the guiding component 3, the control component 4, and the barcode scanner 5. The guiding component 3 provides guidance for the rotating component 2, and the control component 4 controls the start and stop of the rotating component 2. The rotating component 2 drives the test tubes on the test tube rack to rotate, so that the barcodes face the barcode scanner 5. The barcode scanner 5 scans the barcodes on the test tubes, thus eliminating the need for manual orientation when scanning barcodes on test tubes. This allows any test tube with a barcode to be scanned, making scanning more convenient.

[0031] The support plate 7 and the base mounting plate 6 are fixedly connected and located on the side of the base mounting plate 6; the barcode scanner mounting plate 8 is fixedly connected and located on the side of the support plate 7; the reset optocoupler cover 9 is fixedly connected and located on the side of the support plate 7. The base mounting plate 6 provides support for the entire device, and the barcode scanner mounting plate 8 connects the barcode scanner 5 and the support plate 7.

[0032] Secondly, the cover plate 10 and the support plate 7 are fixedly connected and located on the side of the support plate 7. The cover plate 10 can prevent test tubes on the test tube rack from falling off.

[0033] Meanwhile, the motor 11 is fixedly mounted above the support plate 7; the drive gear shaft 12 is fixedly connected to the output end of the motor 11 and is located on one side of the motor 11; the first gear shaft mounting plate 13 is rotatably mounted on the drive gear shaft 12; the drive gear 14 is sleeved on the drive gear shaft 12 and is located below the first gear shaft mounting plate 13; the first one-way bearing 15 is disposed between the drive gear shaft 12 and the cam 16; the encoder 17 is fixedly mounted on the side of the cam 16; the drive wheel base plate 18 is disposed on the guide assembly 3; the drive wheel shaft seat 19 is fixedly disposed below the drive wheel base plate 18; the drive wheel 20 is rotatably mounted on the drive wheel shaft seat 19; and the optocoupler baffle 21 is fixedly disposed on the drive wheel shaft. The second gear shaft mounting plate 22 is rotatably mounted on the journal of the drive gear 20; the second one-way bearing 23 is disposed between the journal of the drive gear 20 and the output gear 24; the rubber sleeve 25 is fixedly disposed on the side of the output gear 24; the linkage shaft 26 is rotatably connected to the first gear shaft mounting plate 13 and the second gear shaft mounting plate 22 respectively, and passes through the first gear shaft mounting plate 13 and the second gear shaft mounting plate 22; the linkage gear 27 is fixedly connected to the linkage shaft 26 and meshes with the drive gear 14 and the output gear 24; the slotted optocoupler 28 is disposed below the support plate 7; the optocoupler mounting plate 29 is fixedly disposed below the support plate 7; and the reset optocoupler 30 is disposed on the side of the support plate 7. The drive gear shaft 12 and the drive gear 14 can transmit torque. Below the drive gear 14 is a cam 16, which is fitted onto the drive gear shaft 12 via a one-way bearing. Since the first one-way bearing 15 only transmits torque in one direction, the drive gear shaft 12 can only transmit counterclockwise torque to the cam 16. Because the output gear 24 and the drive wheel 20 are fitted together via the second one-way bearing 23, the output gear 24 can only transmit clockwise torque to the drive wheel 20. An optocoupler 1 is fixed to the right side of the support plate 7, and an optocoupler 2 is fixed to the left side of the support plate 7. When the motor 11 drives the cam 16 to rotate, the cam 16 rotates the encoder 17, causing the optocoupler to conduct. This is the reset position of the motor 11. Each time the cam 16 resets, if the optocoupler 2 is blocked by the optocoupler baffle 21, it is determined that there is no test tube; otherwise, it is considered that there is a test tube.

[0034] In addition, the dual-slider linear guide rail 31 is disposed below the support plate 7; the driven wheel base plate 32 is disposed on the side of the dual-slider linear guide rail 31; the two driven wheels 33 are respectively rotatably disposed on the side of the driven wheel base plate 32; one end of the first tension spring 34 is connected to the support plate 7, and the other end is hinged to the driven wheel base plate 32; one end of the second tension spring 35 is connected to the support plate 7, and the other end is hinged to the driving wheel base plate 18. The active wheel base plate 18 is fixed on one of the sliders of the double slider linear guide 31, and the driven wheel base plate 32 is fixed on the other slider of the double slider linear guide 31. The double slider linear guide 31 guides the horizontal displacement of the active wheel 20 and the driven wheel 33. The first tension spring 34 and the second tension spring 35 generate a pulling force that brings the active wheel base plate 18 and the driven wheel base plate 32 closer to each other along the direction of the double slider linear guide 31. When the active wheel base plate 18 and the driven wheel base plate 32 are pulled closer by the first tension spring 34 and the second tension spring 35 until they clamp the test tube, the rubber sleeve 25 on the active wheel 20 rotates with the active wheel 20 and rubs against the outer wall of the test tube, causing the test tube to rotate more than 360° along the axis.

[0035] Finally, the circuit board mounting plate 36 and the support plate 7 are fixedly connected and located above the support plate 7; the circuit board cover plate 37 and the circuit board mounting plate 36 are fixedly connected and located above the circuit board mounting plate 36; the control circuit board 38 is disposed on the circuit board mounting plate 36. The circuit board mounting plate 36 is used to support the control circuit board 38, the circuit board cover plate 37 is used to protect the control circuit board 38, and the control circuit board 38 is used to control the motor 11.

[0036] This invention discloses a single-motor driven knuckle gear rotary barcode scanner. An optocoupler 1 is fixed to the right side of the support plate 7, and an optocoupler 2 is fixed to the left side of the support plate 7. Two optocouplers are used for judgment. When the motor 11 drives the cam 16 to rotate, and simultaneously the cam 16 rotates the code disk 17, causing the optocoupler to conduct, this is the reset position of the motor 11. Each time the cam 16 resets, the first tension spring 34 and the second tension spring 35 generate a pulling force that causes the driving wheel base plate 18 and the driven wheel base plate 32 to move closer together along the double-slider linear guide rail 31. In the absence of test tubes, the optocoupler 2 will move closer to the driving wheel base plate 18 and the driven wheel base plate 32 due to the pulling force of the first tension spring 34 and the second tension spring 35, and will be blocked by the optocoupler baffle 21, thus determining that there are no test tubes. Conversely, if the cam 16 resets, and the driving wheel 20 and the driven wheel 22 move closer together due to the pulling force of the first tension spring 34 and the second tension spring 35, the optocoupler 2 will be blocked by the optocoupler baffle 21. 33. Because there is a test tube in the middle, the active wheel base plate 18 and the driven wheel base plate 32 cannot be pulled closer by the first tension spring 34 and the second tension spring 35, so the optocoupler 2 is not blocked by the optocoupler baffle 21. Therefore, it is considered that there is a test tube. When it is determined that there is a test tube, the test tube rotation action and code scanning continue. When it is determined that there is no test tube, the test tube rotation action and code scanning action are not performed. The system is directly reset and waits for the next test tube to enter. This method effectively improves the efficiency of code scanning and improves the fault tolerance of the entire system. By adopting a single motor 11 drive mode and using a double slider linear guide 31 structure to guide the horizontal displacement of the driving wheel 20 and the driven wheel 33, the torque of the motor 11 is transmitted unidirectionally to the cam 16 and the driving wheel 20 respectively when the motor 11 rotates clockwise. That is, when the motor 11 rotates clockwise, the torque of the motor 11 is only transmitted to the driving wheel 20, and when the motor 11 rotates counterclockwise, the torque of the motor 11 is only transmitted to the cam 16. By using a single motor 11 to rotate clockwise and counterclockwise, the test tube clamping action and the test tube rotation action are independently controlled. These two actions run independently in time and do not interfere with each other. Compared with existing barcode scanning devices, this drive method reduces the number of motors 11 used, reduces the complexity of the control circuit, and reduces the reliance on the reliability of the electronic hardware. By employing a drive wheel 20 and a driven wheel 33 to clamp and rotate the test tubes, the distance between the drive wheel 20 and the driven wheel 33 can adapt to the diameter of the test tube due to the elasticity of the first tension spring 34 and the second tension spring 35. Therefore, it can accommodate most test tubes of different diameters and heights. This application eliminates the need for manual orientation when scanning barcodes on test tubes, allowing any test tube with a barcode to be scanned. It is understood that the aforementioned solution reduces the use of motor 11, lowers the complexity of the control circuit, reduces the failure rate, reduces the overall module size, and improves module compatibility. It can accommodate the usage requirements of various specifications and sizes of test tubes, and can also determine whether a test tube rack contains test tubes, improving recognition efficiency.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A single-motor driven knuckle gear rotary scanning device, characterized in that, Includes support components, rotating components, guiding components, control components, and a barcode scanner; The rotating component is disposed on the supporting component, the guiding component is disposed on the side of the rotating component, and the control component is disposed on the top of the supporting component; the barcode scanner is disposed on the side of the supporting component. The support assembly includes a base mounting plate, a support plate, a barcode scanner mounting plate, and a reset optocoupler cover; The support plate and the base mounting plate are fixedly connected and located on the side of the base mounting plate; the barcode scanner mounting plate and the support plate are fixedly connected and located on the side of the support plate; the reset optocoupler cover and the support plate are fixedly connected and located on the side of the support plate. The rotating assembly includes a motor, a drive gear shaft, a first gear shaft mounting plate, a drive gear, a first one-way bearing, a cam, an encoder, a drive wheel base plate, a drive wheel shaft seat, a drive wheel, an optocoupler baffle, a second gear shaft mounting plate, a second one-way bearing, an output gear, a rubber sleeve, a linkage shaft, a linkage gear and a slotted optocoupler, an optocoupler mounting plate and a reset optocoupler; The motor is fixedly mounted above the support plate; the drive gear shaft is fixedly connected to the output end of the motor and is located on one side of the motor; the first gear shaft mounting plate is rotatably mounted on the drive gear shaft; The drive gear is fitted onto the drive gear shaft and is located below the first gear shaft mounting plate; the first one-way bearing is disposed between the drive gear shaft and the cam; the encoder is fixedly disposed on the side of the cam; the drive wheel base plate is disposed on the guide assembly; the drive wheel shaft seat is fixedly disposed below the drive wheel base plate; the drive wheel is rotatably disposed on the drive wheel shaft seat; the optocoupler baffle is fixedly disposed on the side of the drive wheel shaft seat. The second gear shaft mounting plate is rotatably mounted on the journal of the driving wheel; the second one-way bearing is disposed between the journal of the driving wheel and the output gear; the rubber sleeve is fixedly disposed on the side of the output gear; The linkage shaft is rotatably connected to the first gear shaft mounting plate and the second gear shaft mounting plate respectively, and passes through the first gear shaft mounting plate and the second gear shaft mounting plate; the linkage gear and the linkage shaft are fixedly connected and mesh with the driving gear and the output gear; the slotted optical coupler is disposed below the support plate; the optical coupler mounting plate is fixedly disposed below the support plate, and the reset optical coupler is disposed on the side of the support plate.

2. The single-motor driven finger-gear transmission rotary scanning device as described in claim 1, characterized in that, The support assembly also includes a cover plate; The cover plate and the support plate are fixedly connected and located on the side of the support plate.

3. The single-motor driven finger-gear transmission rotary scanning device as described in claim 2, characterized in that, The guide assembly includes a double slider linear guide, a driven wheel base plate, two driven wheels, a first tension spring, and a second tension spring; The dual-slider linear guide is disposed below the support plate; the driven wheel base plate is disposed on the side of the dual-slider linear guide; the two driven wheels are respectively rotatably disposed on the side of the driven wheel base plate; one end of the first tension spring is connected to the support plate, and the other end is hinged to the driven wheel base plate; one end of the second tension spring is connected to the support plate, and the other end is hinged to the driving wheel base plate.

4. The single-motor driven knuckle gear rotary scanning device as described in claim 3, characterized in that, The control component includes a circuit board mounting plate, a circuit board cover plate, and a control circuit board; The circuit board mounting plate and the support plate are fixedly connected and located above the support plate; the circuit board cover plate and the circuit board mounting plate are fixedly connected and located above the circuit board mounting plate; the control circuit board is disposed on the circuit board mounting plate.

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