Code scanning device

Abstract

The utility model relates to the technical field of code scanning payment, and provides a code scanning device which comprises a code scanning head, a shading assembly and an adjusting assembly, the shading assembly is installed in front of the code scanning head, the shading assembly is provided with a light through hole, and the optical axis of the light through hole coincides with the optical axis of the code scanning head; the adjusting assembly is connected with the shading assembly and used for driving the shading assembly to move so as to adjust the light inlet area of the light through hole. According to the invention, the interference of illumination factors is effectively prevented, the success rate of code scanning payment is ensured, the passing efficiency of vehicles is improved, and the intelligent and unmanned development of lanes is promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of code scanning payment, in particular to a code scanning device. Background Art

[0002] With the widespread use of highway composite pass cards, self-service devices for highway composite pass cards are constantly emerging. At present, the number of residents' car ownership is increasing, which puts higher requirements on the traffic efficiency of highway stations. In order to solve social pain points such as holiday station congestion, a stable and efficient highway composite pass card self-service device is the key.

[0003] As one of the most commonly used electronic payment methods, QR code scanning payment is not only widely used in daily life, but also an important payment method in highway lane self-service payment equipment. However, as an outdoor device, the QR code scanning module of highway lane self-service payment equipment is easily disturbed by dust, water mist and sunlight. For example, if there is water mist or direct sunlight inside, the QR code scanning payment will fail, affecting traffic, which is very unfavorable for the subsequent intelligent and unmanned development of highway lanes.

[0004] Utility model content / Utility model content

[0005] The utility model provides a code scanning device to solve the technical defect in the prior art that the direct illumination of the external environment on the scanning terminal will affect the success rate of the code scanning device for code scanning payment, thereby effectively preventing the interference of light factors, ensuring the success rate of code scanning payment, improving the traffic efficiency of vehicles, and promoting the intelligent and unmanned development of lanes.

[0006] The utility model provides a code scanning device, comprising:

[0007] sweeping the docks;

[0008] A shading component, the shading component is installed in front of the scanning terminal, the shading component has a light through hole, and the optical axis of the light through hole coincides with the optical axis of the scanning terminal;

[0009] An adjusting component is connected to the shading component, and is used to drive the shading component to move so as to adjust the light-incoming area of ​​the light-through hole.

[0010] According to a code scanning device provided by the utility model, the shading assembly includes a track plate and a plurality of shading plates, the track plate is formed with the light-through hole, the plurality of shading plates are rotatably connected around the light-through hole and connected between the track plate and the adjustment assembly, and the adjustment assembly drives the shading plates to move radially along the track plate to adjust the light-incoming area of ​​the light-through hole.

[0011] According to a code scanning device provided by the utility model, the track plate is provided with a first guide rail inclined radially corresponding to the track plate, the adjustment component is provided with a second guide rail inclined radially corresponding to the track plate, a connecting shaft slidingly cooperated with the first guide rail and the second guide rail is formed on the light shielding plate, and the adjustment group drives the connecting shaft to reciprocate along the second guide rail through the first guide rail, so that the multiple light shielding plates jointly adjust the light entering area of ​​the light hole.

[0012] According to a code scanning device provided by the utility model, the adjustment component includes an adjustment gear and a driving member, the second guide rail is opened on the adjustment gear, and the driving member is meshed and transmission-connected with the adjustment gear.

[0013] According to a code scanning device provided by the utility model, the code scanning device also includes a shell, and the two opposite ends of the shell are provided with a first opening and a second opening that are connected to each other, the scanning terminal is arranged on the first opening, and the shading component and the adjustment component are arranged at the second opening.

[0014] According to a code scanning device provided by the utility model, the code scanning device also includes a first sealing member, which is arranged around the first opening and is sealed and abutted between the scanning terminal and the shell.

[0015] According to a code scanning device provided by the utility model, an inner cavity communicating with the first opening and the second opening is formed inside the shell, and a drying space is provided on the inner wall surface of the inner cavity, and the drying space is used to store a desiccant.

[0016] According to a code scanning device provided by the utility model, a placement opening is opened on the shell corresponding to the drying space, and the placement opening is connected to the drying space. The code scanning device also has a pressure plate, and the pressure plate is installed on the placement opening, and the pressure plate is used to block or open the placement opening.

[0017] According to a code scanning device provided by the utility model, the code scanning device further includes a second sealing member, the second sealing member is arranged around the second opening, and the second sealing member is sealingly abutted between the pressing plate and the shell.

[0018] According to a code scanning device provided by the utility model, the code scanning device further includes a glass plate, the glass plate is sealed on the second opening, and is located between the shell and the shading component.

[0019] The barcode scanning device provided by the utility model is provided with a shading component and an adjusting component in front of the scanning terminal, wherein a light-through hole coinciding with the optical axis of the scanning terminal is opened on the shading component, and the adjusting component is transmission-connected with the shading component to drive the shading component to adjust the light-incoming area of ​​the light-through hole. During use, when sunlight or other strong ambient light directly shines on the scanning terminal, the adjusting component drives the shading component to adjust the light-incoming area of ​​the light-through hole according to the intensity of the ambient light. In this way, automatic adjustment of the amount of light entering the scanning terminal is achieved through the cooperation between the shading component and the adjusting component, thereby blocking most of the sunlight or other strong ambient light, thereby avoiding interference of sunlight or other strong ambient light on the scanning of the barcode at the scanning terminal, ensuring the success rate of barcode scanning payment, improving the traffic efficiency of vehicles, and further promoting the intelligent and unmanned development of lanes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a code scanning device provided by the utility model.

[0022] Figure 2 yes Figure 1 Front view of the barcode scanning device.

[0023] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.

[0024] Reference numerals:

[0025] 10. Scanning device;

[0026] 100. Sweep the dock;

[0027] 200, shading assembly; 210, track plate; 211, light hole; 212, first guide rail; 220, shading plate; 221, connecting shaft; 300, adjustment assembly; 310, adjustment gear; 311, second guide rail;

[0028] 400, housing; 410, inner cavity; 411, drying space; 420, first opening; 430, second opening; 440, placement opening;

[0029] 500, a first sealing member;

[0030] 600, second sealing member;

[0031] 700, pressing plate;

[0032] 800. Glass plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0036] The utility model provides a code scanning device.

[0037] In the embodiment of the present utility model, Figures 1 to 3 As shown, a code scanning device 10 is provided, which includes a scanning terminal 100, a shading component 200 and an adjusting component 300. The shading component 200 is installed in front of the scanning terminal 100. The shading component 200 has a light hole 211, and the optical axis of the light hole 211 coincides with the optical axis of the scanning terminal 100; the adjusting component 300 is connected to the shading component 200, and the adjusting component 300 is used to drive the shading component 200 to move so as to adjust the light-incoming area of ​​the light hole 211.

[0038] The scanner 100 is suitable for reading and parsing barcode or QR code information. The scanner 100 usually includes a camera or image sensor for capturing images of barcodes or QR codes, and parsing barcode or QR code information through built-in software algorithms, or transmitting the acquired information to other components for parsing, which is not specifically limited here. In this way, by acquiring barcode or QR code information through the scanner 100, scan code payment has been completed.

[0039] The light shielding assembly 200 is installed in front of the scanning terminal 100, and the light shielding assembly 200 is suitable for controlling the amount of light entering the scanning terminal 100. The light shielding assembly 200 has one or more light holes 211, which allow light to pass through and illuminate the image sensor of the scanning terminal 100. The size, shape and position of the light holes 211 will affect the amount of light received by the scanning terminal 100.

[0040] The coincidence of the optical axis of the light hole 211 and the optical axis of the scanning terminal 100 is an important condition to ensure that the scanning terminal 100 can accurately receive light. When the two coincide, the light can directly and without deviation pass through the light hole 211 and illuminate the image sensor of the scanning terminal 100, thereby improving the accuracy and efficiency of code scanning.

[0041] The adjustment component 300 is connected to the shading component 200 and is used to drive the shading component 200 to move so as to adjust the light-incoming area of ​​the light-through hole 211. The adjustment component 300 is usually composed of one or more motors, drivers or transmission mechanisms, and can automatically or manually adjust the position or angle of the shading component 200 according to the intensity of the ambient light, thereby changing the size and shape of the light-through hole 211.

[0042] In this way, the code scanning device 10 can adapt to different lighting conditions. In a strong light environment, the adjustment component 300 can reduce the light-incoming area of ​​the light hole 211 to prevent excessive light from interfering with the scanning terminal 100; in a weak light environment, the adjustment component 300 can increase the light-incoming area of ​​the light hole 211 to ensure that the scanning terminal 100 can receive enough light to scan the code.

[0043] The present application arranges a shading component 200 and an adjusting component 300 in front of the scanning terminal 100, wherein the shading component 200 is provided with a light hole 211 which coincides with the optical axis of the scanning terminal 100, and the adjusting component 300 is transmission-connected to the shading component 200, and is used to drive the shading component 200 to adjust the light-incoming area of ​​the light hole 211. When in use, when sunlight or other strong ambient light directly shines on the scanning terminal 100, the adjusting component 300 drives the shading component 200 to adjust the light-incoming area of ​​the light hole 211 according to the intensity of the ambient light. In this way, the automatic adjustment of the light entering the scanning terminal 100 is achieved through the cooperation between the shading component 200 and the adjusting component 300, thereby blocking most of the sunlight or other strong ambient light, thereby avoiding the interference of sunlight or other strong ambient light on the scanning of the code at the scanning terminal 100, ensuring the success rate of scanning code payment, improving the traffic efficiency of vehicles, and further promoting the intelligent and unmanned development of lanes.

[0044] Reference Figure 1 and Figure 2 According to a barcode scanning device 10 provided by the utility model, the shading component 200 includes a track plate 210 and a plurality of shading plates 220, a light-through hole 211 is formed on the track plate 210, and the plurality of shading plates 220 are rotatably connected between the track plate 210 and the adjustment component 300 around the light-through hole 211, and the adjustment component 300 drives the shading plates 220 to move radially along the track plate 210 to adjust the light-incoming area of ​​the light-through hole 211.

[0045] It is understood that the shading assembly 200 is composed of a track plate 210 and a plurality of shading plates 220. The track plate 210 is the base of the shading assembly 200, on which a light hole 211 is formed, which is the key channel for light to enter the scanning terminal 100. The shading plates 220 are movable parts installed between the track plate 210 and the adjustment assembly 300. They are centered on the light hole 211 and can rotate or move along the radial direction of the track plate 210. By moving the shading plates 220, the size of the light hole 211 can be adjusted, thereby controlling the amount of light entering the scanning terminal 100. The light hole 211 formed on the track plate 210 ensures that light can accurately irradiate the image sensor of the scanning terminal 100. The shading plates 220 are connected to the track plate 210 and the adjustment assembly 300 through a certain rotation connection mechanism. The adjustment assembly 300 can accurately control the position and angle of the shading plates 220.

[0046] When the ambient light is too strong, the adjustment component 300 will drive the shading plate 220 to move radially along the track plate 210, reducing the light-incoming area of ​​the light-through hole 211, thereby preventing excessive light from interfering with the scanning terminal 100. When the ambient light is weak, the adjustment component 300 will drive the shading plate 220 to move in the opposite direction, increasing the light-incoming area of ​​the light-through hole 211, and ensuring that the scanning terminal 100 can receive enough light to read the barcode or QR code. In this way, the code scanning device 10 achieves precise control of the amount of light entering the scanning terminal 100 through the cooperation of the shading component 200 and the adjustment component 300. Whether in strong light or weak light environment, the accuracy and efficiency of code scanning can be ensured, the traffic efficiency of vehicles can be improved, and the intelligent and unmanned development of lanes can be promoted.

[0047] Reference Figure 2 and Figure 3 According to a code scanning device 10 provided by the utility model, the track plate 210 is provided with a first guide rail 212 inclined radially corresponding to the track plate 210, and the adjustment component 300 is provided with a second guide rail 311 inclined radially correspondingly. A connecting shaft 221 that slides with the first guide rail 212 and the second guide rail 311 is formed on the shading plate 220. The adjustment group drives the connecting shaft 221 to reciprocate along the second guide rail 311 through the first guide rail 212, so that multiple shading plates 220 jointly adjust the light-entry area of ​​the light hole 211.

[0048] It is understandable that the track plate 210 is inclined along the radial direction to open the first guide rail 212, and the first guide rail 212 provides a sliding path for the connecting shaft 221 on the shading plate 220. Since the guide rail is inclined, when the connecting shaft 221 slides on the guide rail, the shading plate 220 will move along the radial direction of the track plate 210, thereby changing the size of the light hole 211.

[0049] The adjustment component 300 has a second guide rail 311 inclined radially correspondingly, which cooperates with the first guide rail 212. The light shielding plate 220 is a movable part for adjusting the size of the light hole 211. It is formed with a connecting shaft 221 that cooperates and slides with the first guide rail 212 and the second guide rail 311. When the adjustment component 300 is started, it will move by driving the connecting shaft 221 on the second guide rail 311. Due to the cooperation between the first guide rail 212 and the second guide rail 311, the connecting shaft 221 will slide along the two guide rails at the same time, driving the light shielding plate 220 to move along the radial direction of the track plate 210. When the connecting shaft 221 slides on the guide rail, the light shielding plate 220 will move accordingly, thereby changing the size of the light hole 211. Multiple light shielding plates 220 cooperate with the guide rails through their respective connecting shafts 221 to jointly adjust the light intake area of ​​the light hole 211.

[0050] When the ambient light is too strong, the adjustment component 300 will drive the connecting shaft 221 to move along the guide rail toward the center of the light hole 211, so that the shading plate 220 gradually blocks the light hole 211, reducing the light-incoming area and preventing excessive light from interfering with the scanning dock 100. When the ambient light is weak, the adjustment component 300 will drive the connecting shaft 221 to move along the guide rail toward the edge of the light hole 211, so that the shading plate 220 gradually moves away from the light hole 211, increasing the light-incoming area and ensuring that the scanning dock 100 can receive enough light to read the barcode or QR code. In this way, through the precise cooperation of the guide rail and the connecting shaft 221, the light-incoming area of ​​the light hole 211 is precisely adjusted, thereby improving the accuracy and efficiency of code scanning.

[0051] In some embodiments, the code scanning device 10 also includes a light sensor, which is used to detect the amount of direct light entering the light hole 211, and control the adjustment component 300 to drive the shading component 200 according to the amount of light entering. In this way, the position of the shading plate 220 can be automatically adjusted according to changes in ambient light, thereby realizing an intelligent light adjustment function.

[0052] Reference Figure 2 According to a barcode scanning device 10 provided by the utility model, the adjustment component 300 includes an adjustment gear 310 and a driving member, the second guide rail 311 is opened on the adjustment gear 310, and the driving member is meshed and transmission-connected with the adjustment gear 310.

[0053] It is understood that the adjustment assembly 300 includes an adjustment gear 310, and a second guide rail 311 is provided on the adjustment gear 310 in a radially inclined manner. The second guide rail 311 cooperates with the first guide rail 212 on the track plate 210 to provide a sliding path for the connecting shaft 221 on the shading plate 220. The design of the adjustment gear 310 can ensure the stability and accuracy of the shading plate 220 during movement.

[0054] The adjustment assembly 300 includes a driving member, which is meshed and connected to the adjustment gear 310 and is responsible for providing power to the adjustment gear 310. The driving member can be a power source such as a motor or a stepping motor, and the adjustment gear 310 can be precisely controlled by precisely controlling its rotation angle and speed. The meshing transmission connection between the driving member and the adjustment gear 310 can ensure the stability and reliability of power transmission.

[0055] Reference Figure 1 and Figure 3 According to a code scanning device 10 provided by the utility model, the code scanning device 10 also includes a shell 400, and the shell 400 has a first opening 420 and a second opening 430 that are connected to each other at opposite ends. The scanning terminal 100 is arranged on the first opening 420, and the shading component 200 and the adjustment component 300 are arranged at the second opening 430.

[0056] It is understandable that the shell 400 has two opposite ends, each of which is provided with a first opening 420 and a second opening 430 that are interconnected. The first opening 420 is located at one end of the shell 400 and is used to install the scanning terminal 100. The scanning terminal 100 is responsible for reading the information of the barcode or QR code. The second opening 430 is located at the other end of the shell 400 and is interconnected with the first opening 420. A shading component 200 and an adjustment component 300 are provided at the second opening 430. The shading component 200 is used to block unnecessary light to prevent excessive light from interfering with the code scanning operation; the adjustment component 300 is responsible for driving the movement of the shading component 200 to adjust the light-incoming area of ​​the light-through hole 211. The code scanning device 10 effectively integrates the scanning terminal 100, the shading component 200 and the adjustment component 300 through the design of the shell 400, forming a code scanning system with a compact structure and complete functions.

[0057] Reference Figure 3 According to a code scanning device 10 provided by the utility model, the code scanning device 10 also includes a first sealing member 500 , which is arranged around the first opening 420 , and the first sealing member 500 is sealed and abutted between the scanning terminal 100 and the shell 400 .

[0058] It is understandable that the first seal 500 is arranged around the first opening 420 of the housing 400 of the code scanning device 10, that is, the location where the scanning terminal 100 is installed. The first seal 500 is sealed between the scanning terminal 100 and the housing 400 to prevent dust, moisture or other contaminants from entering the interior of the code scanning device 10, thereby ensuring the normal operation and life of the scanning terminal 100 and other internal components. Through the setting of the first seal 500, the interior of the code scanning device 10 is effectively isolated from the external environment, reducing the possibility of contaminants entering the interior of the device, ensuring the success rate of code scanning payment, and improving traffic efficiency.

[0059] Reference Figure 3 According to a code scanning device 10 provided by the utility model, an inner cavity 410 communicating with a first opening 420 and a second opening 430 is formed inside the shell 400, and a drying space 411 is provided on the inner wall surface of the inner cavity 410, and the drying space 411 is used to store a desiccant.

[0060] It is understandable that an inner cavity 410 is formed inside the shell 400 of the code scanning device 10, which is connected to the first opening 420 and the second opening 430. On the inner wall surface of the inner cavity 410, one or more dry spaces 411 are provided specifically for storing desiccants. These dry spaces 411 can be grooves, chambers, or other forms of storage structures to ensure that the desiccant can be stably placed therein without affecting the normal operation of other components in the inner cavity 410. In the code scanning device 10, the desiccant is placed in the dry space 411 to absorb moisture in the inner cavity 410 and maintain a dry environment in the inner cavity 410. By setting up the dry space 411 and storing the desiccant, the humidity in the inner cavity 410 can be effectively absorbed and reduced, thereby improving the resistance of the code scanning device 10 to humid environments.

[0061] Reference Figure 3 According to a code scanning device 10 provided by the utility model, a placement opening 440 is opened on the shell 400 corresponding to the dry space 411, and the placement opening 440 is connected to the dry space 411. The code scanning device 10 also has a pressing plate 700, which is installed on the placement opening 440 and is used to block or open the placement opening 440.

[0062] It is understandable that a placement port 440 is provided on the housing 400 of the barcode scanning device 10 at a position corresponding to the drying space 411. The placement port 440 is directly connected to the drying space 411, so that the user can conveniently add or replace the desiccant into the drying space 411 through the placement port 440.

[0063] The barcode scanning device 10 is also equipped with a pressing plate 700, which is installed on the placement opening 440. The pressing plate 700 is mainly used to block or open the placement opening 440. When the desiccant needs to be added or replaced, the user can simply remove the pressing plate 700 to open the placement opening 440; when the drying space 411 does not need to be operated, the pressing plate 700 is used to block the placement opening 440 to prevent external dust, moisture, etc. from entering the drying space 411 and affecting the effect of the desiccant.

[0064] Reference Figure 3 According to a code scanning device 10 provided by the utility model, the code scanning device 10 further includes a second sealing member 600 , which is disposed around the second opening 430 , and the second sealing member 600 is sealed and abutted between the pressing plate 700 and the housing 400 .

[0065] It is understandable that the second seal 600 is arranged around the edge of the second opening 430. When the pressing plate 700 completely blocks the second opening 430, the second seal 600 can be tightly sealed between the pressing plate 700 and the housing 400, thereby further preventing external dust, moisture, etc. from entering the dry space 411 through the gap. The second seal 600 can ensure the close fit between the pressing plate 700 and the housing 400, effectively preventing the intrusion of water vapor or smoke from the external environment. Ensure the success rate of scanning code payment and improve the traffic efficiency.

[0066] Reference Figure 3 According to a code scanning device 10 provided by the utility model, the code scanning device 10 further includes a glass plate 800 , which covers the second opening 430 and is located between the housing 400 and the shading assembly 200 .

[0067] It is understandable that the presence of the glass plate 800 can prevent external smoke and water vapor from entering the inner cavity 410 through the light hole 211, reducing the interference of smoke and water vapor on the scanning terminal 100, thereby improving the success rate of scanning. In addition, the transparency and high light transmittance of the glass plate 800 also ensure that light can fully irradiate and enter the scanning terminal 100, ensuring the normal use of the scanning terminal 100.

[0068] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A code scanning device, characterized in that: include: sweeping the docks; A shading component, the shading component is installed in front of the scanning terminal, the shading component has a light through hole, and the optical axis of the light through hole coincides with the optical axis of the scanning terminal; An adjusting component is connected to the shading component, and is used to drive the shading component to move so as to adjust the light-incoming area of ​​the light-through hole.

2. The code scanning device according to claim 1, characterized in that: The shading assembly includes a track plate and a plurality of shading plates, the track plate is formed with the light-through hole, the plurality of shading plates are rotatably connected around the light-through hole and connected between the track plate and the adjustment assembly, and the adjustment assembly drives the shading plates to move radially along the track plate to adjust the light-incoming area of ​​the light-through hole.

3. The code scanning device according to claim 2, characterized in that: The track plate is provided with a first guide rail inclined radially corresponding to the track plate, the adjustment assembly is provided with a second guide rail inclined radially corresponding to the track plate, a connecting shaft which slides with the first guide rail and the second guide rail is formed on the light shielding plate, and the adjustment group drives the connecting shaft to reciprocate along the second guide rail through the first guide rail, so that the multiple light shielding plates can jointly adjust the light entering area of ​​the light hole.

4. The code scanning device according to claim 3, characterized in that: The adjusting assembly comprises an adjusting gear and a driving member, the second guide rail is arranged on the adjusting gear, and the driving member is meshed and transmission-connected with the adjusting gear.

5. The code scanning device according to any one of claims 1 to 4, characterized in that: The code scanning device also includes a shell, and two opposite ends of the shell are provided with a first opening and a second opening that are connected to each other, the scanning terminal is arranged on the first opening, and the shading component and the adjustment component are arranged at the second opening.

6. The code scanning device according to claim 5, characterized in that: The code scanning device further includes a first sealing member, which is disposed around the first opening and is sealed and abutted between the scanning terminal and the housing.

7. The code scanning device according to claim 5, characterized in that: An inner cavity communicating with the first opening and the second opening is formed inside the shell, and a drying space is provided on the inner wall surface of the inner cavity, and the drying space is used to store a desiccant.

8. The code scanning device according to claim 7, characterized in that: A placement opening is provided on the shell corresponding to the drying space, and the placement opening is communicated with the drying space. The code scanning device also has a pressing plate, and the pressing plate is installed on the placement opening, and the pressing plate is used to block or open the placement opening.

9. The code scanning device according to claim 8, characterized in that: The code scanning device further includes a second sealing member, which is disposed around the second opening and is sealingly abutted between the pressing plate and the housing.

10. The code scanning device according to claim 8, characterized in that: The code scanning device also includes a glass plate, which covers the second opening and is located between the housing and the shading component.

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