Two-dimensional code attaching fool-proof jig

Abstract

The utility model is suitable for the technical field of code pasting auxiliary tools, and provides a two-dimensional code pasting fool-proof jig which comprises a plate body, one side face of the plate body in the thickness direction of the plate body is a positioning face, a positioning hole and a code pasting hole are formed in the plate body in the thickness direction of the plate body in a penetrating mode, and a positioning opening is formed in the positioning face of the positioning hole. And the code pasting hole forms a code pasting port on the positioning surface. When the positioning face is attached to the face to be subjected to code pasting, the positioning opening surrounds the periphery of the positioning structure on the face to be subjected to code pasting, and the code pasting opening surrounds the periphery of the code pasting area on the face to be subjected to code pasting. The positioning surface on the plate body is attached to the to-be-pasted code surface on the to-be-pasted product, and the positioning opening formed by the positioning hole on the positioning surface is arranged on the periphery of the positioning structure in a surrounding manner, so that the code pasting opening formed by the code pasting hole on the positioning surface is arranged on the periphery of the code pasting area in a surrounding manner; therefore, an operator can quickly and accurately position the position of the code pasting area, the accuracy of two-dimensional code pasting is greatly improved, and the product percent of pass is further improved.

Description

Technical Field

[0001] This application relates to the field of QR code affixing auxiliary tools, and more specifically, to a QR code affixing error-proof fixture. Background Technology

[0002] In today's production, logistics, and many other fields that require QR codes for information identification, accurate affixing of QR codes is crucial. As a medium for quickly obtaining information, QR codes are now widely used on various product casings and packaging.

[0003] Currently, the most common method of affixing QR codes is manual affixing. Traditional manual affixing of QR codes mainly relies on the operator's experience and visual observation. However, due to the operator's lack of hand stability, the affixed QR codes often become crooked. Once the QR code on the product is crooked, it may cause the customer's scanning device to be unable to scan the complete QR code, thus failing to read the information in the QR code, resulting in a high product defect rate. Utility Model Content

[0004] The purpose of this application is to provide a QR code affixing error prevention fixture, which aims to solve the technical problem of high defect rate of products using manual affixing of QR codes in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a QR code affixing error-proof fixture is provided, including a board body. One side of the board body in its thickness direction is a positioning surface, which is used to affix the QR code to the surface of the product to be affixed. The board body is provided with a positioning hole and a QR code affixing hole through its thickness direction. The positioning hole forms a positioning opening on the positioning surface, and the QR code affixing hole forms a QR code affixing opening on the positioning surface. When the positioning surface is affixed to the QR code surface, the positioning opening surrounds the outer periphery of the positioning structure on the QR code surface, and the QR code affixing opening surrounds the outer periphery of the QR code affixing area on the QR code surface.

[0006] In one possible design, a first limiting part is provided on the positioning surface, and one side of the first limiting part in a first direction is a first limiting surface, the first direction being parallel to the positioning surface, and the first limiting surface being used to contact the product to be attached.

[0007] In one possible design, a second limiting part is further provided on the positioning surface. One side of the second limiting part in a second direction is a second limiting surface. The second direction is parallel to the positioning surface and forms an angle with the first direction. The first limiting surface, the second limiting surface, and the positioning surface enclose a positioning area. The positioning area is used to accommodate at least a portion of the structure of the product to be pasted. The first limiting surface and the second limiting surface are respectively used to contact different sides of the product to be pasted.

[0008] In one possible design, in the thickness direction of the plate body, the thickness of the plate body is less than the thickness of the first limiting portion and the thickness of the second limiting portion, respectively; and / or,

[0009] In the thickness direction of the plate body, the thickness of the first limiting part and the thickness of the second limiting part are equal.

[0010] In one possible design, the side of the first limiting portion away from the positioning area is flush with the side of the plate body in a third direction, which is opposite to the first direction; the side of the second limiting portion away from the positioning area is flush with the side of the plate body in a fourth direction, which is opposite to the second direction.

[0011] In one possible design, the first limiting surface, the second limiting surface, and the positioning surface are arranged perpendicularly to each other.

[0012] In one possible design, the labeling hole is a fully enclosed hole, and the labeling opening of the labeling hole is used to surround the labeling area.

[0013] In one possible design, the label hole has at least a first positioning sidewall and a second positioning sidewall arranged at an angle, the first positioning sidewall and the second positioning sidewall being used to contact different sides of the QR code label, respectively.

[0014] In one possible design, there are multiple positioning holes, which are spaced apart, and the positioning openings of the multiple positioning holes are respectively used to surround the outer periphery of different positioning structures on the surface to be affixed.

[0015] In one possible design, the labeling hole is a semi-enclosed hole, with a notch formed on one side in a fifth direction, which is parallel to the positioning surface. In a direction parallel to the positioning surface and perpendicular to the fifth direction, the length of the notch is greater than or equal to the length of the labeling area.

[0016] The beneficial effects of the QR code labeling error-proof fixture provided in this application are as follows: Compared with the prior art, the QR code labeling error-proof fixture of this application, by setting positioning holes and labeling holes on the board body, allows for labeling during the labeling process. By aligning the positioning surface on the board body with the labeling surface (the surface used to affix QR code labels) on the product to be labeled, and making the positioning opening formed by the positioning hole on the positioning surface surround the positioning structure on the labeling surface of the product to be labeled (which can be any easily identifiable structure such as any raised, recessed, or colored area on the labeling surface), the labeling opening formed by the labeling hole on the positioning surface surrounds the outer periphery of the labeling area. This allows operators to quickly and more accurately locate the labeling area. By affixing the QR code label to the area surrounded by the labeling opening on the labeling surface, the QR code labeling is completed, greatly improving the accuracy of QR code labeling and thus increasing the product qualification rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a QR code attachment error-proof fixture provided in one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of another perspective of the QR code attachment error-proof fixture provided in one embodiment of this application;

[0020] Figure 3 This is a schematic diagram showing the relative position of the QR code attaching error-proof fixture and the product to be attached, provided in one embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of the product to be pasted provided in one embodiment of this application;

[0022] Figure 5 This is another schematic diagram of the structure of a QR code attachment error-proof fixture provided in one embodiment of this application.

[0023] The details of the reference numerals used in the above figures are as follows:

[0024] 10. Board body; 11. Positioning surface; 12. Positioning hole; 121. Positioning opening; 13. Labeling hole; 131. Labeling opening; 20. First limiting part; 21. First limiting surface; 30. Second limiting part; 31. Second limiting surface; 50. Product to be labeled; 51. Labeling surface; 52. Positioning structure; 53. Labeling area. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0030] like Figures 1 to 4 As shown, one embodiment of this application provides a QR code attaching error-proof fixture, including a board body 10. One side of the board body 10 in its thickness direction is a positioning surface 11, which is used to attach to the QR code surface 51 on the product to be attached. The board body 10 is provided with a positioning hole 12 and a QR code attaching hole 13 through it in its thickness direction. The positioning hole 12 forms a positioning opening 121 on the positioning surface 11, and the QR code attaching hole 13 forms a QR code attaching opening 131 on the positioning surface 11. When the positioning surface 11 is attached to the QR code surface 51, the positioning opening 121 surrounds the outer periphery of the positioning structure 52 on the QR code surface 51, and the QR code attaching opening 131 surrounds the outer periphery of the QR code attaching area 53 on the QR code surface 51.

[0031] The QR code attaching error-proof fixture provided in this application embodiment can be used to assist in attaching QR codes to displays, chassis, or other suitable products 50. In some application scenarios, the QR code attaching error-proof fixture provided in this application is used to assist in attaching QR codes to displays. The displays have a display surface for emitting light and a surface 51 for attaching QR code labels. The surface 51 can be parallel to the display surface or at an angle to it. In a specific example, the surface 51 is parallel to the display surface and is positioned opposite to it.

[0032] In this embodiment, the positioning structure 52 can be any easily identifiable structure on the labeling surface, such as a raised area, a recessed area, or a colored area. It is understood that the relative positions of the positioning hole 12 and the labeling hole 13 are the same as the relative positions of the positioning structure 52 and the positioning area on the labeling surface 51. Thus, when the positioning opening 121 formed by the positioning hole 12 on the positioning surface 11 surrounds the outer periphery of the positioning structure 52, the labeling opening 131 formed by the labeling hole 13 on the positioning surface 11 happens to surround the outer periphery of the labeling area 53.

[0033] In some embodiments, the display screen includes a housing and a back plate. The housing has an inner cavity and an opening communicating with the inner cavity. Structures such as circuit boards and light-emitting elements can be installed in the inner cavity. The side of the housing opposite to the opening is designated as the display surface. The back plate covers the opening to protect the structures in the inner cavity. In this embodiment, the surface to be labeled 51 can specifically be the side of the back plate facing away from the inner cavity. The back plate and the housing can be connected by snap-fit, screw, or any other method. In one specific embodiment, the back plate and the housing are connected by screws. The head of the screw protrudes from the surface to be labeled 51. In this embodiment, the head of the screw protruding from the surface to be labeled 51 serves as a positioning structure 52. That is, the positioning opening 121 can specifically be used to surround the outer periphery of the head of the screw protruding from the surface to be labeled 51.

[0034] In this embodiment, the plate body 10 can be a rectangular plate structure, a circular plate structure, a triangular plate structure, or a plate structure of other irregular shapes. The plate body 10 has a length direction, a width direction, and a thickness direction. The dimensions of the plate body 10 in the length direction and the width direction are both greater than the dimensions of the plate body 10 in the thickness direction. That is to say, the thickness direction of the plate body 10 specifically refers to the extension direction of the shorter side of the plate body 10. In one example, the plate body 10 is a rectangular plate structure, and the length direction, width direction, and thickness direction of the plate body 10 are perpendicular to each other.

[0035] Compared with related technologies, the QR code attaching error-proof fixture provided in this application provides a positioning hole 12 and a code attaching hole 13 on the board body 10. During the code attaching process, the positioning surface 11 on the board body 10 is attached to the code attaching surface 51 on the product 50, and the positioning opening 121 formed by the positioning hole 12 on the positioning surface 11 surrounds the outer periphery of the positioning structure 52 on the code attaching surface 51 of the product 50. This allows the code attaching opening 131 formed by the code attaching hole 13 on the positioning surface 11 to surround the outer periphery of the code attaching area 53. This allows the operator to quickly and more accurately locate the position of the code attaching area 53 (i.e., it achieves a certain error-proofing effect). By attaching the QR code label to the area surrounded by the code attaching opening 131 on the code attaching surface 51, the QR code attaching is completed, which greatly improves the accuracy of QR code attaching and thus improves the product qualification rate.

[0036] In one possible design, such as Figure 2 As shown, a first limiting part 20 is provided on the positioning surface 11. One side of the first limiting part 20 in the first direction is a first limiting surface 21, which is parallel to the positioning surface 11. The first limiting surface 21 is used to contact the product 50 to be labeled. By providing the first limiting part 20, during the labeling process, the positioning surface 11 can contact the labeling surface 51 on the product 50, and then the first limiting surface 21 can contact any other surface on the product 50 other than the labeling surface 51. This restricts the degree of freedom of movement of the QR code labeling error-proof fixture relative to the product 50 in the first direction, thereby improving the positioning effect of the QR code labeling error-proof fixture.

[0037] In the above embodiments, the first limiting surface 21 and the positioning surface 11 are set at an angle. The side of the product 50 to be affixed that contacts the first limiting surface 21 is called the first side surface. Specifically, the angle between the first limiting surface 21 and the positioning surface 11 is equal to the angle between the first side surface and the surface to be affixed (QR code) 51. Thus, when the positioning surface 11 is attached to the surface to be affixed (QR code) 51, the first limiting surface 21 can also be attached to the first side surface, thereby improving the positioning effect of the QR code affixing error-proof fixture. In one example, when the product 50 to be affixed (QR code) is a display screen, the first side surface can specifically be one of the sides of the casing located between the display surface and the surface to be affixed (QR code) 51. The first side surface and the surface to be affixed (QR code) 51 can be set perpendicularly; therefore, the first limiting surface 21 and the positioning surface 11 can also be set perpendicularly.

[0038] In one possible design, such as Figure 2As shown, a second limiting part 30 is also provided on the positioning surface 11. One side of the second limiting part 30 in the second direction is a second limiting surface 31. The second direction is parallel to the positioning surface 11 and forms an angle with the first direction. The first limiting surface 21, the second limiting surface 31 and the positioning surface 11 enclose a positioning area. The positioning area is used to accommodate at least a part of the structure of the product 50 to be attached. The first limiting surface 21 and the second limiting surface 31 are respectively used to contact different sides of the product 50 to be attached. By setting the second limiting part 30, during the code affixing process, the QR code affixing anti-mistake fixture covers one corner of the product 50 where the code affixing area 53 is located. That is, one corner of the product 50 where the code affixing area 53 is located extends into the positioning area, so that the positioning surface 11 contacts the surface 51 where the code is to be affixed, the first limiting surface 21 contacts one side of the product 50 other than the surface 51 where the code is to be affixed, and the second limiting surface 31 contacts the other side of the product 50 other than the surface 51 where the code is to be affixed. In this way, not only can the QR code affixing anti-mistake fixture be restricted in its movement freedom in the first direction relative to the product 50, but also in its movement freedom in the second direction relative to the product 50, resulting in a better positioning effect.

[0039] Optionally, the angle between the first direction and the second direction can be greater than 90 degrees, less than 90 degrees, or equal to 90 degrees. In this embodiment, the first limiting surface 21, the second limiting surface 31, and the positioning surface 11 are arranged at angles to each other. The side of the product 50 to be affixed that contacts the second limiting surface 31 is called the second side surface. Specifically, the angle between the second limiting surface 31 and the positioning surface 11 is equal to the angle between the second side surface and the surface to be affixed (QR code) 51, and the angle between the first limiting surface 21 and the second limiting surface 31 is equal to the angle between the first side surface and the second side surface. Thus, when the positioning surface 11 is attached to the surface to be affixed (QR code) 51 and the first limiting surface 21 is attached to the first side surface, the second limiting surface 31 can be attached to the second side surface, thereby further improving the positioning effect of the QR code affixing error-proof fixture. In one example, when the product 50 to be affixed (QR code) is a display screen, the second side surface can specifically be a side surface in the outer casing located between the display surface and the surface to be affixed (QR code) 51 and arranged at an angle to the first side surface. In one specific embodiment, the second side is perpendicular to both the surface to be affixed (51) and the first side, and the second limiting surface (31) is perpendicular to both the positioning surface (11) and the first limiting surface (21). In this embodiment, when the first side is also perpendicular to the surface to be affixed (51), the first limiting surface (21) is also perpendicular to the positioning surface (11), that is, the first limiting surface (21), the second limiting surface (31), and the positioning surface (11) are perpendicular to each other in pairs.

[0040] Optionally, the first limiting part 20 and the second limiting part 30 can be connected to the plate body 10 by any means such as bonding, welding or integral molding, and no single limitation is made here.

[0041] In one possible design, such as Figure 5 As shown, in the thickness direction of the plate body 10, the thickness of the plate body 10 is less than the thickness of the first limiting part 20 and the thickness of the second limiting part 30. In this arrangement, the thinner the plate body 10, the shallower the depth of the labeling hole 13, making it easier for the operator to attach the QR code label to the surface 51 to be labeled through the labeling hole 13; while the thicker the first limiting part 20 and the second limiting part 30, the stronger the structure of the QR code labeling anti-foolproof fixture, thereby improving the limiting effect of the first limiting part 20 and the second limiting part 30, and thus improving the positioning effect of the QR code labeling anti-foolproof fixture.

[0042] In one possible design, such as Figure 5 As shown, in the thickness direction of the plate body 10, the thickness of the first limiting part 20 and the thickness of the second limiting part 30 are equal. This allows the side of the first limiting part 20 facing away from the plate body 10 and the side of the second limiting part 30 facing away from the plate body 10 to be flush, resulting in a smoother surface for the QR code attachment fixture. In this embodiment, in the thickness direction of the plate body 10, the thickness of the plate body 10 can be less than the thickness of the first limiting part 20 and the thickness of the second limiting part 30, or the thickness of the plate body 10 can be greater than or equal to the thickness of the first limiting part 20 and the thickness of the second limiting part 30.

[0043] In one possible design, such as Figure 1 and Figure 2 As shown, the side of the first limiting part 20 away from the positioning area is flush with the side of the plate body 10 in the third direction, which is opposite to the first direction; the side of the second limiting part 30 away from the positioning area is flush with the side of the plate body 10 in the fourth direction, which is opposite to the second direction. This configuration further improves the flatness of the outer surface of the QR code attaching error-proof fixture, to a certain extent improves the structural strength of the QR code attaching error-proof fixture, reduces the occurrence of damage to the QR code attaching error-proof fixture due to bumps, and also reduces the occurrence of scratches to operators, thus improving safety performance.

[0044] In this embodiment, the label hole 13 can be a fully enclosed hole or a semi-enclosed hole. For example... Figure 3As shown, when the labeling hole 13 is a fully enclosed hole, the labeling opening 131 of the labeling hole 13 is used to surround the labeling area 53. This helps operators to more accurately locate the specific position of the labeling area 53, thereby improving the efficiency and accuracy of QR code application. The shape of the labeling opening 131 can be adapted to the outer contour shape of the labeling area 53. For example, when the outer contour shape of the labeling area 53 is rectangular, the shape of the labeling opening 131 is also rectangular. When the labeling hole 13 is a semi-enclosed hole, the labeling opening 131 of the labeling hole 13 surrounds a portion of the outer periphery of the labeling area 53. Exemplarily, the semi-enclosed hole (i.e., the labeling hole 13) has a notch formed on one side in the fifth direction, which is parallel to the positioning surface 11. Optionally, the fifth direction can be parallel to the first direction, parallel to the second direction, or set at an angle to both the first and second directions; no unique limitation is made here. In a direction parallel to the positioning surface 11 and perpendicular to the fifth direction, the length of the notch is greater than or equal to the length of the labeling area 53. During the labeling process, when the QR code labeling fixture is placed on the product 50 to be labeled, so that the positioning surface 11 is in contact with the labeling surface 51 and the positioning hole 12 is aligned with the positioning structure 52 on the product 50, the operator can align one side of the QR code label in the sixth direction (opposite to the fifth direction) with the side wall of the semi-enclosed hole opposite to the notch, and align the two sides of the QR code label spaced apart in the direction perpendicular to the sixth direction with the two side walls of the semi-enclosed hole spaced apart in the direction perpendicular to the sixth direction, so that the QR code label can be accurately labeled into the labeling area 53. This design shortens the length of the label hole 13 in the fifth direction, thereby shortening the length of the board body 10 in the fifth direction. This makes the QR code labeling error-proofing fixture shorter in the fifth direction, reducing the amount of raw materials needed to save costs. It also avoids interference between the QR code error-proofing fixture and other structures on the product 50 to be labeled. In addition, it allows the QR code labeling error-proofing fixture to be used for QR code labels of different lengths, improving its versatility.

[0045] In one possible design, the labeling hole 13 has at least a first positioning sidewall and a second positioning sidewall arranged at an angle, which are respectively used to contact different sides of the QR code label. Thus, during the labeling process, the operator can contact one side of the QR code label with the first positioning sidewall to position the QR code label in a direction perpendicular to the first positioning sidewall, and then contact the other side of the QR code label with the second positioning sidewall to position the QR code label in a direction perpendicular to the second positioning sidewall. Because the first and second sidewalls are arranged at an angle, the QR code label can be accurately affixed to the labeling area 53.

[0046] In this embodiment, the number of positioning holes 12 can be one or more. When there is only one positioning hole 12, the positioning hole 12 has at least two inner walls arranged at an angle, and the positioning structure 52 corresponding to the positioning hole 12 also has at least two outer walls arranged at an angle. By attaching the two inner walls of the positioning hole 12 at an angle to the two outer walls of the positioning structure 52 at an angle, the QR code attaching anti-foolproof fixture can be aligned with the product 50 to be attached. For example, the positioning hole 12 is a cuboid structure, and the positioning structure 52 is a cuboid structure protruding from the surface 51 to be attached. When the positioning opening 121 surrounds the outer periphery of the positioning structure 52, by attaching the at least two inner walls of the positioning hole 12 at an angle to the corresponding two outer walls of the positioning structure 52, the QR code attaching anti-foolproof fixture can be aligned with the product 50 to be attached. When there are multiple positioning holes 12, such as Figure 3 As shown, multiple positioning holes 12 are spaced apart, and the positioning openings 121 of the multiple positioning holes 12 are respectively used to surround the outer periphery of different positioning structures 52 on the surface 51 to be labeled. By having multiple positioning holes 12 respectively facing different positioning structures 52, the QR code labeling error-proofing fixture can also be aligned with the product 50 to be labeled.

[0047] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A QR code sticker error-proof fixture, characterized in that, The device includes a board body, one side of which is a positioning surface along its thickness direction. This positioning surface is used to affix a code to the surface of the product to be labeled. The board body has a positioning hole and a code-applying hole that extend through it along its thickness direction. The positioning hole forms a positioning opening on the positioning surface, and the code-applying hole forms a code-applying opening on the positioning surface. When the positioning surface is affixed to the surface of the product to be labeled, the positioning opening surrounds the outer periphery of the positioning structure on the surface of the product to be labeled, and the code-applying opening surrounds the outer periphery of the code-applying area on the surface of the product to be labeled.

2. The QR code affixing error-proof fixture as described in claim 1, characterized in that, A first limiting part is provided on the positioning surface. One side of the first limiting part in a first direction is a first limiting surface. The first direction is parallel to the positioning surface. The first limiting surface is used to contact the product to be attached.

3. The QR code affixing error-proof fixture as described in claim 2, characterized in that, The positioning surface is further provided with a second limiting part, one side of the second limiting part in the second direction is the second limiting surface, the second direction is parallel to the positioning surface and is set at an angle to the first direction; the first limiting surface, the second limiting surface and the positioning surface surround to form a positioning area, the positioning area is used to accommodate at least part of the structure of the product to be pasted, and the first limiting surface and the second limiting surface are respectively used to contact different sides of the product to be pasted.

4. The QR code affixing error-proof fixture as described in claim 3, characterized in that, In the thickness direction of the plate body, the thickness of the plate body is less than the thickness of the first limiting portion and the thickness of the second limiting portion, respectively; and / or, In the thickness direction of the plate body, the thickness of the first limiting part and the thickness of the second limiting part are equal.

5. The QR code affixing error-proof fixture as described in claim 3, characterized in that, The side of the first limiting part away from the positioning area is flush with the side of the plate body in a third direction, which is opposite to the first direction; the side of the second limiting part away from the positioning area is flush with the side of the plate body in a fourth direction, which is opposite to the second direction.

6. The QR code affixing error-proof fixture as described in claim 3, characterized in that, The first limiting surface, the second limiting surface, and the positioning surface are arranged perpendicularly to each other.

7. The QR code affixing error-proof fixture as described in any one of claims 1 to 6, characterized in that, The labeling hole is a fully enclosed hole, and the labeling opening of the labeling hole is used to surround the labeling area.

8. The QR code affixing error-proof fixture as described in any one of claims 1 to 6, characterized in that, The labeling hole has at least a first positioning sidewall and a second positioning sidewall arranged at an angle, and the first positioning sidewall and the second positioning sidewall are respectively used to contact different sides of the QR code label.

9. The QR code affixing error-proof fixture as described in any one of claims 1 to 6, characterized in that, The number of positioning holes is multiple, and the multiple positioning holes are arranged at intervals. The positioning openings of the multiple positioning holes are respectively used to surround the outer periphery of different positioning structures on the surface to be affixed.

10. The QR code affixing error-proof fixture as described in any one of claims 1 to 6, characterized in that, The labeling hole is a semi-enclosed hole, and a notch is formed on one side of the semi-enclosed hole in the fifth direction. The fifth direction is parallel to the positioning surface. In the direction that is parallel to the positioning surface and perpendicular to the fifth direction, the length of the notch is greater than or equal to the length of the labeling area.

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