Code scanning equipment

Abstract

The utility model provides a code scanning device, comprising a housing, a button, a button plate, a first elastic member, a second elastic member, an electromagnet and a bayonet lock, one end of the button is rotatably connected to the housing, the other end is a free end, the button is used for rotating to trigger the button plate, the first elastic member is used for driving the button to reset, the button plate is arranged in the housing and corresponds to the button, and the bayonet lock is arranged in the housing. The electromagnet is arranged in the shell and located below the key, one end of the clamping pin is inserted into the electromagnet, and the other end of the clamping pin is a free end. In the application, under the condition that the electromagnet is electrified, the bayonet lock retracts, so that the key cannot be blocked, and the key can freely rotate to trigger the key plate. Under the condition that the electromagnet is not powered on, the clamping pin is driven to abut against the key under the elastic force effect of the second elastic piece, then the key cannot rotate, and the situation of mistaken touch is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to a barcode scanning device. Background Technology

[0002] When conducting eye examinations, personal information can be conveniently linked to examination results using barcode scanning devices. Hospitals or ophthalmology clinics automatically associate patient information with examination data by scanning QR codes or barcodes, avoiding manual input errors and improving efficiency. After scanning, the eye examination results (such as visual acuity, intraocular pressure, corneal curvature, etc.) are usually automatically saved to the patient's electronic medical record.

[0003] When using a scanner, doctors may accidentally press or hold a button, which could cause an unexpected scan to start or change the scan settings. Without proper button restrictions, this can easily lead to misoperation. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a barcode scanning device that aims to solve the problem in the prior art where doctors may accidentally press or hold a button while using a scanner, leading to unexpected scanning tasks or changes in scanning settings. Without proper button restrictions, misoperation is easily caused.

[0005] This utility model provides a barcode scanning device, including a housing, a button, a button plate, a first elastic element, a second elastic element, an electromagnet, and a locking pin. One end of the button is rotatably connected to the housing, and the other end is a free end. The button is used to rotate to trigger the button plate. The first elastic element is used to drive the button to reset. The button plate is disposed inside the housing and corresponds to the button. The electromagnet is disposed inside the housing and located below the button. One end of the locking pin is inserted into the electromagnet, and the other end is a free end. The second elastic element is used to drive the free end of the locking pin to abut against the free end of the button to restrict the rotation of the button. The electromagnet can be energized to drive the locking pin to retract so that the button can rotate.

[0006] Furthermore, the housing is provided with a support plate, which is located below the button. The electromagnet is located below the support plate, and the free end of the latch extends through the support plate to the free end of the button plate.

[0007] Furthermore, a stop plate is provided on the side of the support plate away from the electromagnet. The stop plate is located on the side of the latch away from the button and is used to support the latch.

[0008] Furthermore, a clearance groove is provided on the free end of the button, which is used to avoid the stop plate when the button is rotated.

[0009] Furthermore, the button has a protruding hinge rod, which is inserted into the housing and thus rotatably connected to the housing.

[0010] Furthermore, the first elastic element is a compression spring, and its two ends abut against the button and the button plate, respectively.

[0011] Furthermore, the button has a protruding guide rod that passes through the first elastic member.

[0012] Furthermore, a flange is provided on the edge of the button, and the first elastic element is used to drive the button to reset and then snap it onto the outer shell.

[0013] Furthermore, the second elastic element is a compression spring, a stop ring is fixed on the pin, and the two ends of the second elastic element abut against the stop ring and the electromagnet, respectively.

[0014] Furthermore, it also includes a lighting component, which is disposed on the housing.

[0015] Beneficial Effects: This utility model provides a barcode scanning device, including a housing, a button, a button plate, a first elastic element, a second elastic element, an electromagnet, and a locking pin. One end of the button is rotatably connected to the housing, and the other end is a free end. The button is used to rotate to trigger the button plate. The first elastic element is used to drive the button to reset. The button plate is located inside the housing and corresponds to the button. The electromagnet is located inside the housing and below the button. One end of the locking pin is inserted into the electromagnet, and the other end is a free end. The second elastic element is used to drive the free end of the locking pin to abut against the free end of the button to restrict the button's rotation. The electromagnet can be energized to drive the locking pin to retract, allowing the button to rotate. In this application, when the electromagnet is energized, the locking pin retracts, thus not obstructing the button, and the button can rotate freely to trigger the button plate. When the electromagnet is not energized, the elastic force of the second elastic element drives the locking pin to abut against the button, thus preventing the button from rotating and effectively avoiding accidental touches. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the barcode scanning device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the barcode scanning device of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure when a button is pressed.

[0020] Figure 5 This is a schematic diagram of the button structure.

[0021] In the diagram: 1. Outer shell; 11. Support plate; 12. Stop plate; 2. Button; 21. Clearance groove; 22. Hinge rod; 23. Guide rod; 24. Flange; 3. Button board; 4. First elastic element; 5. Second elastic element; 6. Electromagnet; 7. Locking pin; 71. Stop ring; 8. Lighting component; 9. Camera module; 10. Main control chip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a barcode scanning device, including a housing 1, a button 2, a button plate 3, a first elastic element 4, a second elastic element 5, an electromagnet 6, and a locking pin 7. One end of the button 2 is rotatably connected to the housing 1, and the other end is a free end. The button 2 is used to rotate to trigger the button plate 3. The first elastic element 4 is used to drive the button 2 to reset. The button plate 3 is disposed inside the housing 1 and corresponds to the button 2. The electromagnet 6 is disposed inside the housing 1 and located below the button 2. One end of the locking pin 7 is inserted into the electromagnet 6, and the other end is a free end. The second elastic element 5 is used to drive the free end of the locking pin 7 to abut against the free end of the button 2 to restrict the rotation of the button 2. The electromagnet 6 can be energized to drive the locking pin 7 to retract so that the button 2 can rotate.

[0024] In this application, when the electromagnet 6 is energized, the locking pin 7 retracts, thus failing to obstruct the button 2, allowing the button 2 to rotate freely to trigger the button plate 3. When the electromagnet 6 is not energized, the elastic force of the second elastic element 5 drives the locking pin 7 to press against the button 2, preventing the button 2 from rotating and effectively avoiding accidental activation.

[0025] Furthermore, the barcode scanning device also includes an illumination component 8, which is disposed on the housing 1. When verifying identity information, the barcode scanning operation is typically for easy recording, archiving, and convenient association of personal information with examination results. This simplifies the process and facilitates faster access for ophthalmology patients before, during, and after surgery. Besides using a barcode scanner to verify patient identity, surgical information, and surgical site, an illumination device is also needed to examine the condition of the operated eye and pupil size. Nurses need to put down the barcode scanner and then pick up the illumination device to examine the eyes, which is cumbersome. Therefore, in this application, the illumination component 8 can be used to examine the eyes. Specifically, the illumination component 8 is an adjustable-brightness white LED to ensure eye safety.

[0026] The barcode scanning device described in this application can be widely used for ophthalmic surgery patients. It is suitable for nurses to perform preoperative safety checks and observe the condition of the operated eye, pupil size, etc., greatly improving the speed of surgical checks and handover, making it convenient and efficient. The barcode scanning and lighting functions are integral to the entire surgical process in ophthalmology. They are closely related to patient transport, reception, and handover checks within the operating room. Applying this technology clinically can make the process of transporting and handing over patients smoother and more efficient for nurses.

[0027] Because this application includes an electromagnet 6 and a locking pin 7, a single button 2 is used for both scanning and illumination to improve operational convenience. When the barcode is scanned, the locking pin 7 retracts, allowing the button 2 to rotate. Pressing the button 2 at this time activates the scanning operation on the button panel 3. Similarly, when the barcode is pointed at a person's eyes, the locking pin 7 retracts, allowing the button 2 to rotate. Pressing the button 2 at this time activates the illumination operation on the button panel 3. To enable switching between scanning and illumination functions, a camera module 9 and a main control chip 10 are mounted on the housing 1. The camera module 9 captures images and performs barcode and eye recognition; the main control chip 10 is an embedded processor with image processing capabilities. The main control chip 10 is electrically connected to the keypad 3. When the camera module 9 recognizes a barcode or QR code, it sends the information from the main control chip 10 to the keypad 3, releasing key 2. When key 2 is pressed, the corresponding scanning operation is immediately executed. When the camera module 9 recognizes a person's eye, it sends the information from the main control chip 10 to the keypad 3, releasing key 2. When key 2 is pressed, the corresponding lighting operation is immediately executed. This method simplifies the process of having to put down the barcode scanner and then pick up the lighting device to check the eyes. To ensure that the barcode scanner does not accidentally press key 2 and cause eye injury when it is aimed at the person's eye, the electromagnet 6 is de-energized when the camera module 9 detects that the distance between the barcode scanner and the person's eye is less than 5cm. This keeps the locking pin 7 pressed against the free end of key 2, effectively preventing accidental press of key 2.

[0028] In one feasible embodiment, a support plate 11 is provided inside the housing 1, the support plate 11 is located below the button 2, the electromagnet 6 is located below the support plate 11, and the free end of the locking pin 7 extends through the support plate 11 to the free end of the button plate 3. Further, a stop plate 12 is provided on the side of the support plate 11 away from the electromagnet 6, the stop plate 12 is located on the side of the locking pin 7 away from the button 2, and the stop plate 12 is used to support the locking pin 7. In this embodiment, when the button 2 is pressed down forcefully, the stop plate 12 blocks the locking pin 7, effectively preventing the locking pin 7 from bending, thereby improving the product's lifespan.

[0029] In one feasible implementation, a relief groove 21 is provided on the free end of the button 2, and the relief groove 21 is used to avoid the stop plate 12 when the button 2 is rotated.

[0030] In one feasible implementation, the button 2 is provided with a hinge rod 22, which is inserted into the housing 1 and thus rotatably connected to the housing 1.

[0031] In one feasible implementation, the first elastic element 4 is a compression spring, and the two ends of the first elastic element 4 abut against the button 2 and the button plate 3, respectively.

[0032] In one feasible embodiment, the button 2 is provided with a guide rod 23, which passes through the first elastic member 4. In this embodiment, the guide rod 23 effectively prevents the first elastic member 4 from dislodging.

[0033] In one feasible implementation, a flange 24 is provided on the edge of the button 2, and the first elastic member 4 is used to drive the button 2 to reset and then snap onto the outer shell 1.

[0034] In one feasible embodiment, the second elastic element 5 is a compression spring, and a stop ring 71 is fixed on the locking pin 7. The two ends of the second elastic element 5 abut against the stop ring 71 and the electromagnet 6, respectively. When the electromagnet 6 is energized, the locking pin 7 drives the stop ring 71 to retract, thereby compressing the second elastic element 5; when the electromagnet 6 is de-energized, the elastic force of the second elastic element 5 pushes the locking pin 7 back to its original position.

[0035] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A barcode scanning device, characterized in that: The device includes a housing (1), a button (2), a button plate (3), a first elastic element (4), a second elastic element (5), an electromagnet (6), and a locking pin (7). One end of the button (2) is rotatably connected to the housing (1), and the other end is a free end. The button (2) is used to rotate to trigger the button plate (3). The first elastic element (4) is used to drive the button (2) to reset. The button plate (3) is located inside the housing (1) and corresponds to the button (2). The electromagnet (6) is located inside the housing (1) and below the button (2). One end of the locking pin (7) is inserted into the electromagnet (6), and the other end is a free end. The second elastic element (5) is used to drive the free end of the locking pin (7) to abut against the free end of the button (2) to restrict the rotation of the button (2). The electromagnet (6) can be energized to drive the locking pin (7) to retract so that the button (2) can rotate.

2. The barcode scanning device according to claim 1, characterized in that: The housing (1) is provided with a support plate (11), which is located below the button (2). The electromagnet (6) is located below the support plate (11), and the free end of the latch (7) extends through the support plate (11) to the free end of the button plate (3).

3. The barcode scanning device according to claim 2, characterized in that: A stop plate (12) is provided on the side of the support plate (11) away from the electromagnet (6). The stop plate (12) is located on the side of the latch (7) away from the button (2). The stop plate (12) is used to support the latch (7).

4. The barcode scanning device according to claim 3, characterized in that: An avoidance groove (21) is provided on the free end of the button (2), and the avoidance groove (21) is used to avoid the stop plate (12) when the button (2) is rotated.

5. The barcode scanning device according to claim 1, characterized in that: The button (2) is provided with a hinge rod (22), which is inserted into the outer shell (1) and thus rotatably connected to the outer shell (1).

6. The barcode scanning device according to claim 1, characterized in that: The first elastic element (4) is a compression spring, and the two ends of the first elastic element (4) abut against the button (2) and the button plate (3) respectively.

7. The barcode scanning device according to claim 6, characterized in that: The button (2) is provided with a guide rod (23), which passes through the first elastic member (4).

8. The barcode scanning device according to claim 1, characterized in that: The edge of the button (2) is provided with a flange (24), and the first elastic element (4) is used to drive the button (2) to reset and then snap onto the outer shell (1).

9. The barcode scanning device according to claim 1, characterized in that: The second elastic element (5) is a compression spring, and a stop ring (71) is fixed on the pin (7). The two ends of the second elastic element (5) abut against the stop ring (71) and the electromagnet (6) respectively.

10. The barcode scanning device according to claim 1, characterized in that: It also includes a lighting component (8) disposed on the housing (1).

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