CN214704653U - Bar code scanning device - Google Patents
Bar code scanning device Download PDFInfo
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- CN214704653U CN214704653U CN202121029087.7U CN202121029087U CN214704653U CN 214704653 U CN214704653 U CN 214704653U CN 202121029087 U CN202121029087 U CN 202121029087U CN 214704653 U CN214704653 U CN 214704653U
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Abstract
The utility model discloses a bar code scanning device, which comprises an installation support, a scanning component, a detection component and a transmission component, wherein the scanning component comprises a reflector and a code reader, the code reader emits detection light after receiving a code reading signal and outputs a displacement signal after the code reading is finished, and the transmission component drives the scanning component to move along the length direction of the installation support after receiving the displacement signal; the detection assembly comprises a first sensor and a second sensor, the first sensor outputs a code reading signal when a reagent strip is arranged right in front of the code reader, and the second sensor is provided with a sample tube on the side surface of the code reader to output the code reading signal. Consequently the utility model provides a bar code scanning device has realized the bar code automatic reading of multichannel, different positions, is favorable to the quick safe type of bar code.
Description
Technical Field
The utility model relates to an external diagnostic technology field, more specifically say, relate to a bar code scanning device.
Background
Before reagent inspection, in order to correspond to sample information and detection results, bar code information attached to a sample tube/kit containing a sample/reagent needs to be scanned, identified and recorded.
The traditional input mode is that the manual handheld code reader reads and inputs the bar code information one by one, and intensity of labour is big, work efficiency is low, simultaneously because operating personnel probably contacts the sample, has safety problems such as sample pollution and personnel infection.
In summary, how to implement fast and secure scan entry of barcode information is a problem to be urgently solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a bar code scanning device can realize the bar code automatic reading of multichannel bar code and different positions, is favorable to the quick safe type-in of bar code information.
In order to achieve the above object, the present invention provides the following technical solutions:
a bar code scanning device comprises an installation support, a scanning assembly, a detection assembly and a transmission assembly, wherein the scanning assembly comprises a reflecting mirror and a code reader, the code reader is used for emitting detection light after receiving a code reading signal and outputting a displacement signal after the code reading is finished, and the transmission assembly drives the scanning assembly to move along the length direction of the installation support after receiving the displacement signal;
the detection assembly comprises a first sensor and a second sensor, the first sensor is used for outputting the code reading signal when a reagent strip is arranged right in front of the code reader, and the second sensor is used for outputting the code reading signal when a sample tube is arranged on the side surface of the code reader.
Preferably, the upper end face of the mounting bracket is provided with a first linear rail, the scanning assembly comprises a translation bottom plate in sliding connection with the first linear rail, and the code reader and the reflector are mounted on the translation bottom plate.
Preferably, the detection assembly further comprises a reset sensor, and the reset sensor is used for outputting a reset signal when the scanning assembly moves to the tail end of the mounting bracket;
the transmission assembly drives the scanning assembly to move towards the direction close to the tail end of the mounting bracket after receiving the displacement signal, and drives the scanning assembly to move towards the direction far away from the tail end of the mounting bracket after receiving the reset signal.
Preferably, the reagent strip detection device further comprises a pushing assembly for driving the reagent strip to move in a direction perpendicular to the length direction of the mounting bracket, the pushing assembly drives the reagent strip to approach a detection position after receiving the code reading signal of the first sensor, and drives the reagent strip to move away from the detection position after receiving the displacement signal;
the detection assembly comprises a third sensor, and the third sensor is used for outputting the code reading signal and controlling the pushing assembly to stop moving after the reagent strip moves to the detection position.
Preferably, a second linear rail is arranged on the upper surface of the translation bottom plate, and the length direction of the second linear rail is perpendicular to the length direction of the mounting bracket;
the promotion subassembly including be used for with the ejector pad of reagent strip joint, with second line rail sliding connection's ejector pad fixed block and drive the second step motor of ejector pad, the ejector pad connect in the up end of ejector pad fixed block, the second step motor pass through the second step motor mounting panel with the translation bottom plate is connected.
Preferably, a second driving wheel is sleeved on an output shaft of the second stepping motor, a second driven wheel is arranged on the translation bottom plate, and a second synchronous belt is arranged between the second driving wheel and the second driven wheel;
the push block fixing block is connected with the second synchronous belt.
Preferably, the detection assembly further comprises a push reset sensor for controlling the push assembly to stop moving when the reagent strip is reset.
Preferably, the transmission assembly comprises a first stepping motor, a first driving wheel, a first driven wheel and a first synchronous belt arranged along the length direction of the mounting bracket, and the first synchronous belt is arranged between the first driving wheel and the first driven wheel;
the first stepping motor is connected to the side surface of the mounting bracket through a first stepping motor mounting plate, and the first driving wheel is sleeved on an output shaft of the first stepping motor;
the scanning assembly is connected with the first synchronous belt.
When the bar code scanning device provided by the utility model is used, the reagent strip is vertical to the length direction of the mounting bracket, and the sample tube is parallel to the side surface of the mounting bracket, as shown in fig. 6; the first sensor detects whether a reagent strip exists right in front of the current position of the code reader or not and outputs a code reading signal when the reagent strip exists, and the code reader receives the code reading signal, then emits detection light, receives reflected light reflected by the reagent strip and reads a code for the reagent strip; the second sensor detects whether a sample tube exists on the side face of the current position of the code reader or not, and outputs a code reading signal when the sample tube exists, the code reader sends out detection light after receiving the code reading signal, the detection light is reflected to the position of a bar code of the sample tube by the reflector, the reflection light reflected by the sample tube is received by the code reader through the reflector, and the code reader reads the code of the sample tube; after the reagent strip and the sample tube at the current position are read, the transmission assembly receives a displacement signal output by the code reader to drive the scanning assembly to move forwards to the position of the next reagent strip and/or sample tube.
In the utility model, the code reader can move along the length direction of the mounting bracket, so that the multi-channel bar code information can be read; the reflector changes the light path of the detection light through reflection, so that the code reader can simultaneously complete code reading of the positive front reagent strip and the side sample tube, the application range is wide, the detection speed is high, the reagent strip and the sample tube can adopt the same bar code scanning device to read codes, and the cost of automatic bar code scanning is effectively reduced.
Furthermore, the utility model provides a bar code scanning device compact structure can move in long and narrow space, is favorable to reducing the board size of supporting PCR automated inspection equipment who uses, improves space utilization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art 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 diagram of a barcode scanning device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the mounting bracket and drive assembly of FIG. 1;
FIG. 3 is a schematic structural view of the scanning assembly and the pushing assembly of FIG. 1;
FIG. 4 is a schematic view of the scanning assembly and the pushing assembly of FIG. 3 in a vertical direction;
FIG. 5 is a schematic diagram of the detection assembly of FIG. 1;
fig. 6 is a schematic diagram illustrating the principle of the scanning device and the sample tube and reagent strip during detection.
In fig. 1-6:
01 is a reagent strip, 02 is a sample tube, 1 is a mounting bracket, 11 is a first line rail, 2 is a transmission component, 21 is a first stepping motor, 22 is a first driving wheel, 23 is a first synchronous belt, 24 is a first driven wheel, 3 is a scanning component, 31 is a translation bottom plate, 32 is a code reader, 33 is a reflecting mirror, 34 is a second line rail, 4 is a pushing component, 41 is a second stepping motor, 42 is a second driving wheel, 43 is a second synchronous belt, 44 is a second driven wheel, 45 is a pushing block, 5 is a detection component, 51 is a first sensor, 52 is a second sensor, 53 is a reset sensor, 54 is a third sensor, and 55 is a pushing reset sensor.
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 bar code scanning device can realize the bar code automatic reading of multichannel bar code and different positions, is favorable to the quick safe input of bar code information.
Referring to fig. 1-6, the structure of a specific embodiment of a barcode scanning device provided in the present invention is schematically illustrated; FIG. 2 is a schematic structural view of the mounting bracket and drive assembly of FIG. 1; FIG. 3 is a schematic structural view of the scanning assembly and the pushing assembly of FIG. 1; FIG. 4 is a schematic view of the scanning assembly and the pushing assembly of FIG. 3 in a vertical direction; FIG. 5 is a schematic diagram of the detection assembly of FIG. 1; fig. 6 is a schematic diagram illustrating the principle of the scanning device and the sample tube and reagent strip during detection.
The barcode scanning device provided by the embodiment comprises a mounting bracket 1, a scanning component 3, a detection component 5 and a transmission component 2, wherein the scanning component 3 comprises a reflector 33 and a code reader 32, the code reader 32 is used for emitting detection light after receiving a code reading signal and outputting a displacement signal after the code reading is finished, and the transmission component 2 drives the scanning component 3 to move along the length direction of the mounting bracket 1 after receiving the displacement signal; the detection assembly 5 comprises a first sensor 51 and a second sensor 52, wherein the first sensor 51 is used for outputting a code reading signal when the reagent strip 01 is arranged right in front of the code reader 32, and the second sensor 52 is used for outputting a code reading signal when the sample tube 02 is arranged on the side surface of the code reader 32.
The mounting bracket 1 is mainly used for providing mounting space for the transmission assembly 2, the scanning assembly 3 and the detection assembly 5; the transmission component 2 is used for driving the scanning component 3 to move along the length direction of the mounting bracket 1 so as to realize multi-channel detection of the reagent strip 01 and the sample tube 02; the scanning component 3 is used for scanning and reading the barcode position of the reagent strip 01 and the barcode position of the sample tube 02; the detection assembly 5 is used for controlling the working state of the transmission assembly 2 and the scanning assembly 3.
The scanning assembly 3 can reciprocate in the length direction of the mounting bracket 1, preferably, the upper end surface of the mounting bracket 1 is provided with a first linear rail 11, the scanning assembly 3 comprises a translation bottom plate 31 which is connected with the first linear rail 11 in a sliding way, and a code reader 32 and a reflecting mirror 33 are arranged on the translation bottom plate 31.
Referring to fig. 1 or fig. 6, the translation base plate 31 is fixedly connected to the sliding block of the first track 11, so that the translation base plate 31 can slide relative to the first track 11, and the code reader 32 and the mirror 33 are mounted on the translation base plate 31, and the code reader 32 and the mirror 33 can slide relative to the first track 11 under the driving of the transmission assembly 2.
The type and specification of the code reader 32 should be determined according to actual detection requirements with reference to the prior art, and will not be described herein again.
The reflector 33 is used for reflecting the detection light of the code reader 32 to the barcode position of the sample tube 02, so as to realize the code reading of the code reader 32 on the sample tube 02. Referring to fig. 6, the sample tube 02 is disposed at a side of the code reader 32, that is, the detection light of the code reader 32 is perpendicular to the plane of the barcode of the sample tube 02, so that the angle between the reflector 33 and the code reader 32 is 45 °.
The transmission assembly 2 can be a combination of common motion transmission assemblies such as a synchronous belt assembly and a gear assembly and a stepping motor, and can be a linear displacement mechanism such as an electric push rod and a hydraulic cylinder.
Preferably, in order to reduce the volume of the transmission assembly 2, the transmission assembly 2 includes a first stepping motor 21, a first driving wheel 22, a first driven wheel 24 and a first synchronous belt 23 arranged in the length direction of the mounting bracket 1, and the first synchronous belt 23 is arranged between the first driving wheel 22 and the first driven wheel 24; the first stepping motor 21 is connected to the side surface of the mounting bracket 1 through a first stepping motor mounting plate, and the first driving wheel 22 is sleeved on an output shaft of the first stepping motor 21; the scanning unit 3 is connected to a first timing belt 23.
To ensure that the scanning assembly 3 can be moved to the end of the first track 11, the length of the first timing belt 23 is equal to or greater than the same length as the first track 11.
The power and the kind of the first stepping motor 21 are determined according to actual production needs by referring to the prior art, and are not described in detail herein.
Referring to fig. 1 or fig. 2, when the first stepping motor 21 works, the first driving wheel 22 is driven to rotate, the first driving wheel 22 drives the first synchronous belt 23 to rotate between the first driving wheel 22 and the first driven wheel 24, and the scanning assembly 3 connected to the first synchronous belt 23 slides relative to the first linear rail 11.
When the bar code scanning device is used, the reagent strip 01 is vertical to the length direction of the mounting bracket 1, and the sample tube 02 is parallel to the side surface of the mounting bracket 1, as shown in fig. 6; the first sensor 51 detects whether a reagent strip 01 exists right ahead of the current position of the code reader 32 and outputs a code reading signal when the reagent strip 01 exists, the code reader 32 receives the code reading signal and then emits detection light, receives reflected light reflected by the reagent strip 01 and reads a code for the reagent strip 01; the second sensor 52 detects whether the sample tube 02 exists on the side face of the current position of the code reader 32 or not and outputs a code reading signal when the sample tube 02 exists, the code reader 32 emits detection light, the detection light is reflected to the position of the bar code of the sample tube 02 by the reflector 33, the reflection light reflected by the sample tube 02 is received by the code reader 32 through the reflector 33, and the code reader 32 reads the code of the sample tube 02; after the reagent strip 01 and the sample tube 02 at the current position are both read, the transmission assembly 2 receives the displacement signal output by the code reader 32 and drives the scanning assembly 3 to move forward to the position of the next reagent strip 01 and/or sample tube 02.
The scanning component 3 moves to the position of the tail end reagent strip 01 and/or the tail end sample tube 02 of the mounting bracket 1, and the transmission component 2 can be controlled to drive the scanning component 3 to move reversely so as to scan the next group of reagent strips 01 and/or sample tubes 02 to be detected in a reverse order; the scanning component 3 can also be driven by the transmission component 2 to reset.
Preferably, in order to reset the scanning assembly 3, the detecting assembly 5 may further include a reset sensor 53, wherein the reset sensor 53 is configured to output a reset signal when the scanning assembly 3 moves to the end of the mounting bracket 1; the transmission component 2 drives the scanning component 3 to move towards the direction close to the tail end of the mounting bracket 1 after receiving the displacement signal, and drives the scanning component 3 to move towards the direction far away from the tail end of the mounting bracket 1 after receiving the reset signal.
Therefore, when the scanning assembly 3 moves to the position of the end reagent strip 01 and/or the sample tube 02, the transmission assembly 2 receives the reset signal output by the reset sensor 53 to drive the scanning assembly 3 to reset, so that the scanning assembly 3 detects the next group of reagent strips 01 and/or sample tubes 02 to be detected.
In the present invention, the code reader 32 can move along the length direction of the mounting bracket 1, so that the multi-channel bar code information can be read; the reflector 33 changes the light path of the detection light through reflection, so that the code reader 32 can simultaneously complete the code reading of the reagent strip 01 in the right front and the code reading of the sample tube 02 in the side face, the application range is wide, the detection speed is high, the reagent strip 01 and the sample tube 02 can adopt the same bar code scanning device to read the codes, and the cost of automatic bar code scanning is effectively reduced.
In addition, the barcode scanning device provided by the embodiment has a compact structure, can run in a long and narrow space, and is beneficial to reducing the size of a machine platform of the matched PCR automatic detection equipment and improving the space utilization rate.
Regarding the code reading of the reagent strip 01 and the sample tube 02, two code readers 32 can be arranged in parallel and are respectively used for reading the code of the reagent strip 01 and the code of the sample tube 02, so that the simultaneous code reading of two bar code information can be realized under the arrangement, the code reading speed is high, but the two code readers 32 increase the equipment cost, the occupied space is large, and the miniaturization of the bar code scanning device is not facilitated.
On the basis of the above embodiment, the device further comprises a pushing assembly 4 for driving the reagent strip 01 to move in a direction perpendicular to the length direction of the mounting bracket 1, wherein the pushing assembly 4 drives the reagent strip 01 to approach the detection position after receiving the code reading signal of the first sensor 51, and drives the reagent strip 01 to leave the detection position after receiving the displacement signal; the detecting component 5 comprises a third sensor 54, and the third sensor 54 is used for outputting a code reading signal after the reagent strip 01 moves to the detecting position and controlling the pushing component 4 to stop moving.
The pushing assembly 4 can be a combination of a common motion transmission assembly such as a synchronous belt assembly and a gear assembly and a stepping motor, and can be a linear displacement mechanism such as an electric push rod and a hydraulic cylinder.
Preferably, the upper surface of the translation bottom plate 31 is provided with a second line rail 34, and the length direction of the second line rail 34 is perpendicular to the length direction of the mounting bracket 1; the pushing assembly 4 comprises a pushing block 45 clamped with the reagent strip 01, a pushing block fixing block connected with the second line rail 34 in a sliding mode, and a second stepping motor 41 driving the pushing block 45, the pushing block 45 is connected to the upper end face of the pushing block fixing block, and the second stepping motor 41 is connected with the translation bottom plate 31 through a second stepping motor mounting plate.
Preferably, a second driving wheel 42 is sleeved on an output shaft of the second stepping motor 41, a second driven wheel 44 is arranged on the translation bottom plate 31, and a second synchronous belt 43 is arranged between the second driving wheel 42 and the second driven wheel 44; the push block fixing block is connected with the second timing belt 43.
Therefore, when the second stepping motor 41 rotates, the second driving wheel 42 is driven to rotate, so that the second synchronous belt 43 rotates, the pushing block fixing block is driven to slide relative to the second linear rail 34, the pushing block 45 mounted on the pushing block fixing block slides relative to the second linear rail 34, and finally the pushing block 45 drives the reagent strips 01 to move in the length direction perpendicular to the mounting bracket 1.
During scanning, the first sensor 51 detects whether the reagent strip 01 is arranged right in front of the code reader 32, and outputs a code reading signal when the reagent strip 01 is not arranged right in front of the code reader 32, and the pushing assembly 4 drives the reagent strip 01 to move to the detection position after receiving the code reading signal of the first sensor 51; when the reagent strip 01 moves to the detection position, the third sensor 54 controls the pushing assembly 4 to stop moving, and outputs a code reading signal to the code reader 32, and the code reader 32 receives the code reading signal to read the code of the reagent strip 01; outputting a displacement signal after the reagent strip 01 finishes reading the code, and receiving the displacement signal by the pushing assembly 4 to drive the reagent strip 01 to reset; the second sensor 52 detects whether or not the sample tube 02 is provided on the side of the code reader 32, and outputs a code reading signal when the sample tube 02 is present, so that the code reader 32 reads the code of the sample tube 02.
It should be noted that the reading step of the sample tube 02 may be set before the reading step of the reagent strip 01, and the specific sequence may be adjusted according to the actual needs in the detection process.
Preferably, in order to determine whether the reagent strip 01 has been reset, the detecting assembly 5 further includes a push reset sensor 55, and the push reset sensor 55 is used to control the push assembly 4 to stop moving when the reagent strip 01 is reset.
The third sensor 54 and the push reset sensor 55 may be configured as a proximity switch or other structure with similar functions, and when the end face of the reagent strip 01 moves to the position of the third sensor 54, the third sensor 54 outputs a reading signal and controls the push assembly 4 to stop moving; when the end face of the reagent strip 01 moves to the position of the push reset sensor 55, the push reset sensor 55 controls the push assembly 4 to stop moving.
In this embodiment, by arranging the pushing assembly 4 and switching the position of the reagent strip 01 by the pushing assembly 4 to detect the reagent strip 01 and the sample tube 02 by the code reader 32, the code reading of the reagent strip 01 and the sample tube 02 by one code reader 32 is realized, the overall size of the barcode scanning device is reduced, and the cost and the installation space are saved.
Preferably, referring to fig. 1 or fig. 6, the first sensor 51, the second sensor 52, the third sensor 54 and the push reset sensor 55 are integrated on a sensor mounting plate, and the sensor mounting plate is connected to a side of the scanning assembly 3 close to the reagent strip 01.
It should be noted that, as mentioned in the present specification, the first and second wire rails 11 and 34, the first and second stepping motors 21 and 41, the first and second stepping motor mounting plates, the first and second driving pulleys 22 and 42, the first and second timing belts 23 and 43, the first and second driven pulleys 24 and 44, and the first, second, and third sensors 51, 52, and 54 are only used to distinguish differences in position, and do not limit the sequence.
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.
It is right above that the utility model provides a bar code scanning device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas 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 (8)
1. A barcode scanning device is characterized by comprising an installation support (1), a scanning assembly (3), a detection assembly (5) and a transmission assembly (2), wherein the scanning assembly (3) comprises a reflecting mirror (33) and a code reader (32), the code reader (32) is used for emitting detection light after receiving a code reading signal and outputting a displacement signal after the code reading is finished, and the transmission assembly (2) drives the scanning assembly (3) to move along the length direction of the installation support (1) after receiving the displacement signal;
the detection assembly (5) comprises a first sensor (51) and a second sensor (52), wherein the first sensor (51) is used for outputting the code reading signal when a reagent strip (01) is arranged right in front of the code reader (32), and the second sensor (52) is used for outputting the code reading signal when a sample tube (02) is arranged on the side surface of the code reader (32).
2. A barcode scanning device according to claim 1, characterized in that the upper end face of the mounting bracket (1) is provided with a first linear rail (11), the scanning assembly (3) comprises a translation base plate (31) slidably connected with the first linear rail (11), and the code reader (32) and the mirror (33) are mounted on the translation base plate (31).
3. The barcode scanning device according to claim 1, wherein the detecting assembly (5) further comprises a reset sensor (53), the reset sensor (53) being configured to output a reset signal when the scanning assembly (3) moves to the end of the mounting bracket (1);
the transmission component (2) drives the scanning component (3) to move towards the direction close to the tail end of the mounting bracket (1) after receiving the displacement signal, and drives the scanning component (3) to move towards the direction far away from the tail end of the mounting bracket (1) after receiving the reset signal.
4. The barcode scanning device according to claim 2, further comprising a pushing assembly (4) for driving the reagent strip (01) to move perpendicular to the length direction of the mounting bracket (1), wherein the pushing assembly (4) drives the reagent strip (01) to approach a detection position after receiving the code reading signal of the first sensor (51), and drives the reagent strip (01) to move away from the detection position after receiving the displacement signal;
the detection assembly (5) comprises a third sensor (54), and the third sensor (54) is used for outputting the code reading signal and controlling the pushing assembly (4) to stop moving after the reagent strip (01) moves to the detection position.
5. The barcode scanning device according to claim 4, wherein the upper surface of the translation base plate (31) is provided with a second linear rail (34), and the length direction of the second linear rail (34) is perpendicular to the length direction of the mounting bracket (1);
promote subassembly (4) including be used for with ejector pad (45) of reagent strip (01) joint, with second line rail (34) sliding connection's ejector pad fixed block and drive the second step motor (41) of ejector pad (45), ejector pad (45) connect in the up end of ejector pad fixed block, second step motor (41) through the second step motor mounting panel with translation bottom plate (31) are connected.
6. The barcode scanning device according to claim 5, wherein a second driving wheel (42) is sleeved on an output shaft of the second stepping motor (41), a second driven wheel (44) is arranged on the translation base plate (31), and a second synchronous belt (43) is arranged between the second driving wheel (42) and the second driven wheel (44);
the push block fixing block is connected with the second synchronous belt (43).
7. The barcode scanning device according to claim 4, wherein the detection assembly (5) further comprises a push reset sensor (55), the push reset sensor (55) being configured to control the push assembly (4) to stop moving when the reagent strip (01) is reset.
8. A barcode scanning device according to any of claims 1 to 7, wherein the transmission assembly (2) comprises a first stepping motor (21), a first driving wheel (22), a first driven wheel (24) and a first synchronous belt (23) arranged along the length direction of the mounting bracket (1), the first synchronous belt (23) is arranged between the first driving wheel (22) and the first driven wheel (24);
the first stepping motor (21) is connected to the side surface of the mounting bracket (1) through a first stepping motor mounting plate, and the first driving wheel (22) is sleeved on an output shaft of the first stepping motor (21);
the scanning assembly (3) is connected with the first synchronous belt (23).
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| CN202121029087.7U CN214704653U (en) | 2021-05-13 | 2021-05-13 | Bar code scanning device |
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| CN202121029087.7U CN214704653U (en) | 2021-05-13 | 2021-05-13 | Bar code scanning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116720534A (en) * | 2023-05-23 | 2023-09-08 | 中关村科学城城市大脑股份有限公司 | Fault detection device applied to access card |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116720534A (en) * | 2023-05-23 | 2023-09-08 | 中关村科学城城市大脑股份有限公司 | Fault detection device applied to access card |
| CN116720534B (en) * | 2023-05-23 | 2023-11-24 | 中关村科学城城市大脑股份有限公司 | Fault detection device applied to access card |
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