Bar code reading device

Abstract

The utility model relates to a bar code reading device, comprising a support comprising a first side and a second side which are arranged back to back; the at least two identifying and reading units are arranged on the support, and each identifying and reading unit is arranged towards the first side; the reading directions are the same; the light supplementing unit is arranged on the support and faces the first side, and the light emitting direction of the light supplementing unit is the same as the reading direction of the reading unit; the aiming unit is arranged on the support and faces the first side, and the aiming direction of the aiming unit is the same as the reading direction of the reading unit; and the circuit control unit is arranged on the second side of the support. According to the bar code reading device, the layout of each component is optimized, so that the overall structure is more compact under the condition that at least two reading units are provided, the miniaturization of the overall device is further facilitated, the occupied area of the bar code reading device is reduced, and the user experience is improved.

Description

Technical Field

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

[0002] The barcode reading device in the related art usually has one barcode reading unit. If more than two barcode reading units are provided, the overall volume is likely to increase, which in turn leads to a large space occupied, thereby affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an improved bar code reading device.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct a bar code reading device, including:

[0005] A support, comprising a first side and a second side disposed opposite to each other;

[0006] At least two reading units are arranged on the support, each of the reading units is arranged toward the first side, and the reading directions are the same;

[0007] A fill light unit is disposed on the support and is arranged toward the first side so that its light emitting direction is the same as the reading direction of the reading unit;

[0008] A sighting unit is disposed on the support and is disposed toward the first side, and its sighting direction is the same as the reading direction of the reading unit;

[0009] A circuit control unit is disposed on the second side of the support.

[0010] In some embodiments, at least two of the reading units include:

[0011] A first reading unit, comprising a first lens disposed toward the first side;

[0012] The second reading unit includes a second lens arranged toward the first side, and the focal length of the first lens and the focal length of the second lens are not identically arranged.

[0013] In some embodiments, the fill light unit and the aiming unit are both disposed on a perpendicular bisector of a line connecting the first recognition unit and the second recognition unit.

[0014] In some embodiments, the support is provided with a mounting groove for mounting the fill light unit;

[0015] And / or, the support is provided with mounting holes for one-to-one mounting of the reading units.

[0016] In some embodiments, the support is provided with a glue injection hole for injecting glue to fix the reading unit.

[0017] In some embodiments, the support is provided with a first light emitting hole for the fill light unit to emit light; the central axis of the fill light unit coincides with the central axis of the first light emitting hole;

[0018] And / or, a second light emitting hole for the aiming unit to emit light is provided on the support; and a central axis of the aiming unit coincides with a central axis of the second light emitting hole.

[0019] In some embodiments, the fill light unit includes a first lens disposed toward the first side, a first circuit board, and a first light source, wherein the first light source has a first light emitting surface disposed toward the first lens;

[0020] The first circuit board is extended between the first side and the second side, and includes a first board and a second board; wherein the first board is a hard board; and the second board is a soft board;

[0021] The first light source is disposed on the first plate;

[0022] The second plate body includes a first end and a second end; the first end is connected to the first plate body, and the second end extends toward the second side and is connected to the circuit control unit;

[0023] The aiming unit comprises a second lens arranged toward the first side and a second light source arranged opposite to the second lens; the second lens is a condenser lens.

[0024] In some embodiments, the circuit control unit includes a second circuit board, a third circuit board, and a fourth circuit board arranged in sequence from the second side to a direction away from the first side;

[0025] The second circuit board is connected to the reading unit for imaging;

[0026] The third circuit board and the fourth circuit board are connected;

[0027] The third circuit board is connected to the fill light unit.

[0028] In some embodiments, the second circuit board, the third circuit board and / or the fourth circuit board are circuit boards formed by bonding a soft board and a hard board.

[0029] In some embodiments, the barcode reading device further includes a connecting positioning member extending from the fourth circuit board, the third circuit board, and the second circuit board to the support.

[0030] The implementation of the barcode reading device of the utility model has the following beneficial effects: by arranging at least two reading units, a fill light unit, and an aiming unit on a support and arranging them toward the first side, the reading directions of at least two reading units are arranged to be the same, the aiming direction of the aiming unit is arranged to be the same as the reading direction of the reading unit, and the circuit control unit is arranged on the second side of the support, the layout of each component can be optimized, so that the overall structure is more compact when there are at least two reading units, which is conducive to miniaturization of the overall device, reducing the occupied area of ​​the barcode reading device, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0032] Figure 1 It is a schematic diagram of the structure of the bar code reading device in some embodiments of the utility model;

[0033] Figure 2 yes Figure 1 Another structural schematic diagram of the barcode reading device shown;

[0034] Figure 3 yes Figure 1 A schematic diagram of the partial structure decomposition of the bar code reading device shown;

[0035] Figure 4 yes Figure 1 A cross-sectional view of the bar code reading device shown;

[0036] Figure 5 yes Figure 1 Another cross-sectional view of the bar code reading device shown. DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are constructed and operated in specific directions. They are only for the convenience of describing the technical solution, and do not indicate that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the utility model.

[0038] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0039] Figure 1 Some preferred embodiments of the barcode reading device of the utility model are shown. The barcode reading device can be used to read barcodes, which can be one-dimensional codes or two-dimensional codes. In some embodiments, the barcode reading device has the advantages of compact structure, small size, miniaturized design, and good user experience.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments, the barcode reading device may include a support 10, at least two reading units, a fill light unit 40, a sighting unit 50, and a circuit control unit 60. The support 10 is used for the installation of at least two reading units, the fill light unit 40, the sighting unit 50, and the circuit control unit 60. At least two reading units are arranged on the support 10, and the at least two reading units have the same reading direction, and are used to read barcodes. The fill light unit 40 is arranged on the support 10, and its light emitting direction is the same as the reading direction of the reading unit, and is used to perform fill light when reading barcodes. The sighting unit 50 is arranged on the support 10, and its sighting direction is the same as the reading direction of the reading unit, and is used to aim at the barcode.

[0041] In some embodiments, the support 10 may include a main body 11 and an extension 12. The main body 11 may be roughly wedge-shaped, and is formed by overlapping an upper seat and a lower seat. Of course, it is understandable that in some other embodiments, the main body 11 is not limited to being wedge-shaped, and may be a rectangular parallelepiped or other shapes, and the upper seat and the lower seat of the main body 11 may be an integral structure. Specifically, in some embodiments, the support 10 includes a first side 11a and a second side 11b that are arranged opposite to each other, and the first side 11a and the second side 11b are formed on the main body 11, and may be the front and rear sides of the main body 11. There may be two extensions 12, and the two extensions 12 may be arranged at intervals on the second side 11b of the main body 11 and are located on the lower seat and extend in a direction away from the first side 11a.

[0042] In some embodiments, the support 10 is provided with a mounting hole 11c, specifically, the mounting hole 11c is provided on the main body 11 and is located on the first side 11a of the main body 11, and can be used for the identification and reading unit to be installed one by one. In some embodiments, the mounting hole 11c can include a first mounting hole 111 and a second mounting hole 113, and the first mounting hole 111 and the second mounting hole 113 are both longitudinally arranged between the first side 11a and the second side 11b, and can be used for the identification and reading unit to be installed. The mounting holes 11c are not limited to two, and can be multiple.

[0043] In some embodiments, the support 10 is provided with a glue injection hole 11d, and the glue injection hole 11d is arranged in a one-to-one correspondence with the mounting hole 11c. Specifically, the glue injection hole 11d is arranged on the main body 11, located on the top surface of the main body 11, and is connected to the mounting hole 11c, and is used for injecting glue into the mounting hole 11c to fix the reading unit. In some embodiments, the glue injection hole 11d may include a first glue injection hole 112 and a second glue injection hole 114. The axis of the first glue injection hole 112 is perpendicular to the axis of the first mounting hole 111, and is connected to the first mounting hole 111. The axis of the second glue injection hole 114 is perpendicular to the axis of the second mounting hole 113, and is connected to the first mounting hole 113. In some embodiments, the glue injection hole 11d is not limited to two, and it can be multiple.

[0044] In some embodiments, the support 10 is provided with a first light exit hole 115, which can be specifically provided on the main body 11 and located on the first side 11a of the main body 11. The first light exit hole 115 is located between the first mounting hole 111 and the second mounting hole 112, specifically located on the midline of the line connecting the two. The first light exit hole 115 can be provided corresponding to the fill light unit 40, and is used for the fill light unit 40 to emit light.

[0045] In some embodiments, the support 10 is provided with a mounting groove 116, which is opened on the top surface of the main body 11, and its groove depth direction can be perpendicular to the axial direction of the first light output hole 115. The mounting groove 116 can be connected to the first light output hole 115 for installing the fill light unit 40.

[0046] In some embodiments, a positioning column 117 protruding toward the slot direction may be provided in the installation slot 116. The positioning column 117 may be multiple, specifically, there may be three positioning columns 117. The three positioning columns 117 are arranged at intervals, and one of the positioning columns 117 is located in the axial direction of the first light output hole 115, which is used for positioning and installing the fill light unit 40.

[0047] In some embodiments, the support 10 may be provided with a second light exit hole 118, which may be provided on the first side 11a of the main body 11 and may be located between the first mounting hole 111 and the second mounting hole 113. The second light exit hole 118 may be located below the first light exit hole 115 and may be used for the aiming unit 50 to emit light.

[0048] In some embodiments, the support 10 may further be provided with a screw hole 119, which may be opened on the top surface of the main body 11 and may be used for inserting a screw to connect and fix the upper seat and the lower seat of the main body 11. In other embodiments, the screw hole 119 may be omitted.

[0049] like Figure 3 and Figure 4 As shown, in some embodiments, at least two reading units are disposed toward the first side 11a, and may include a first reading unit 20 and a second reading unit 30. The first reading unit 20 may be installed in the first mounting hole 111. The second reading unit 30 may be installed in the second mounting hole 113. The first reading unit 20 and the second reading unit 30 have the same reading direction, and the depth of field that can be read by the two may be set differently.

[0050] In some embodiments, the first reading unit 20 may include a first lens 21, a first chip 22, and a first buffer 23. The first lens 21 is installed in the first mounting hole 111, and its axial direction is the same as the axial direction of the first mounting hole 111. The first lens 21 may be arranged toward the first side 11a. The first chip 22 may be installed at an end of the first lens 21 away from the first side 11a. The first chip 22 may be a CMOS chip. The first buffer 23 is arranged between the first chip 22 and the first lens 21. In some embodiments, the first buffer 23 may be soft foam.

[0051] In some embodiments, the second reading unit 30 may include a second lens 31, a second chip 32, and a second buffer 33. The second lens 31 is installed in the second mounting hole 113, and its axial direction is the same as the axial direction of the second mounting hole 113. In some embodiments, the focal length of the second lens 31 may be set differently from the focal length of the first lens 21, so that the two reading units can read different depths of field, thereby improving the reading range. The second lens 31 may be set toward the first side 11a. The second chip 32 may be installed at one end of the second lens 31 away from the first side 11a. The second chip 32 may be a CMOS chip. The second buffer 33 is set between the second chip 32 and the second lens 31. In some embodiments, the second buffer 33 may be soft foam.

[0052] In some embodiments, the fill light unit 40 is disposed on the perpendicular bisector of the line connecting the first recognition unit 20 and the second recognition unit 30, that is, the distance from the fill light unit 40 to any recognition unit is the same. The fill light unit 40 can be at least partially installed in the installation groove 116, and can emit light through the first light outlet hole 115. In some embodiments, the central axis of the fill light unit 40 coincides with the central axis of the first light outlet hole 115.

[0053] In some embodiments, the fill light unit 40 may include a first lens 41, a first light source 42, and a first circuit board 43. The first lens 41 is mounted on the first light exit hole 115 and protrudes toward the first side 11a. The first light source 42 may be mounted on the first circuit board 43 and may emit light when powered on. In some embodiments, the first light source 42 may be a high-brightness LED lamp. The first circuit board 43 is extended between the first side 11a and the second side 11b and is a circuit board in which a soft board and a hard board are joined. In some embodiments, the first circuit board 43 may include a first plate body 431 and a second plate body 432, and the first plate body 431 may be inserted into the mounting groove 116 and may be arranged toward the first lens 41. The first plate body 431 may be a soft plate. The second plate body 432 may be in the shape of a cuboid, and include a first end 432a and a second end 432b; wherein the first end 432a may be connected to the first plate body 431 and be bent with respect to the first plate body 431. The second end 432b may extend toward the second side 11b and be connected to the circuit control unit 60. The first light source 42 may be installed on the side of the first plate 431 facing the first lens 41. The second plate 432 may be provided with a positioning hole 4321, and the positioning hole 4321 may be positioned and installed with the positioning column 117. In some embodiments, a heat sink 70 may be provided at the notch of the mounting groove 116, and the heat sink 70 may cover at least a portion of the first circuit board 43, specifically, the first plate 431 and a portion of the second plate 432, and may be used for heat dissipation. In some embodiments, the heat sink 70 may be a stainless steel sheet.

[0054] like Figure 4 and Figure 5 As shown, in some embodiments, the aiming unit 50 is installed on the perpendicular bisector of the line connecting the first recognition unit 20 and the second recognition unit 30, and is located in the second light exit hole 118, that is, the distance between the aiming unit 50 and any of the recognition units is the same. In some embodiments, the central axis of the aiming unit 50 coincides with the second light exit hole 118. In some embodiments, the aiming unit 50 may include a second lens 51 and a second light source 52. The second lens 51 may be disposed close to the first side 11a. The second lens 51 may be a focusing lens. The second light source 52 is located in the main body 11 and may emit light toward the second lens 51.

[0055] In some embodiments, the circuit control unit 60 may include a second circuit board 61, a third circuit board 62, and a fourth circuit board 63. The second sides 11b of the second circuit board 61, the third circuit board 62, and the fourth circuit board 63 are sequentially arranged in a direction away from the first side 11a. The second circuit board 61 is close to the second side 11b of the main body 11, and it can be locked on the main body 11 by a first screw 90a. The second circuit board 61 can be connected to the reading unit, that is, it can be connected to the first reading unit 20 and the second reading unit 30, and it can be used for imaging. The second circuit board 62 can be connected to the third circuit board 63, specifically, the two can be connected by wiring or by setting a connecting piece. The third circuit board 63 can be connected to the fourth circuit board 63, and the third circuit board 63 can be connected to the fill light unit 40, which can be a connecting circuit board. Specifically, the second end 432 of the first circuit board 43 of the fill light unit 40 can be connected to the third circuit board 63. The fourth circuit board 63 may be an interface circuit board, which may be fixed to the side of the extension portion 12 away from the main body portion 11 by a second screw 90b, and is used to connect to an external device. In some embodiments, the second circuit board 61, the third circuit board 62, and the fourth circuit board 63 may all be circuit boards formed by joining a soft board and a hard board. By providing a plurality of circuit boards to form a circuit control unit, and each circuit board adopts a soft-hard joining process, the space occupied by the circuit board can be reduced, making the structure more compact.

[0056] In some embodiments, the barcode reading device further includes a connection positioning member 80, and the connection positioning member 80 may be two, and the two connection positioning members 80 are arranged at intervals. The connection positioning member 80 may pass through the fourth circuit board 63, the third circuit board 62, and the second circuit board 61 to the support 10 to connect and fix the three circuit boards. In some embodiments, the connection positioning member 80 may be a bolt.

[0057] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A barcode reading device, characterized in that: include: A support (10) comprising a first side (11a) and a second side (11b) disposed opposite to each other; At least two reading units are arranged on the support (10), each of the reading units is arranged toward the first side (11a), and the reading directions are the same; A fill light unit (40) is arranged on the support (10), and its light emitting direction is arranged toward the first side (11a) to be the same as the reading direction of the reading unit; A sighting unit (50) is arranged on the support (10) and is arranged toward the first side (11a), and its sighting direction is the same as the reading direction of the reading unit; A circuit control unit (60) is arranged on the second side (11b) of the support (10).

2. The barcode reading device according to claim 1, characterized in that: At least two of the reading units include: A first reading unit (20) comprising a first lens (21) disposed toward the first side (11a); The second reading unit (30) comprises a second lens (31) arranged toward the first side (11a), and the focal length of the first lens (21) and the focal length of the second lens (31) are unequally arranged.

3. The barcode reading device according to claim 2, characterized in that: The fill light unit (40) and the aiming unit (50) are both arranged on a perpendicular bisector of a line connecting the first recognition unit (20) and the second recognition unit (30).

4. The barcode reading device according to claim 1, characterized in that: The support (10) is provided with a mounting groove (116) for mounting the fill light unit (40); And / or, the support (10) is provided with mounting holes (11c) for mounting the reading units in a one-to-one correspondence.

5. The barcode reading device according to claim 1, characterized in that: The support (10) is provided with a glue injection hole (11d) for injecting glue to fix the reading unit.

6. The barcode reading device according to claim 1, characterized in that: The support (10) is provided with a first light emitting hole (115) for the fill light unit (40) to emit light; the central axis of the fill light unit (40) coincides with the central axis of the first light emitting hole (115); And / or, the support (10) is provided with a second light emitting hole (118) for the aiming unit (50) to emit light; and the central axis of the aiming unit (50) coincides with the central axis of the second light emitting hole (118).

7. The barcode reading device according to claim 1, characterized in that: The fill light unit (40) comprises a first lens (41) arranged towards the first side (11a), a first circuit board (43), and a first light source (42), wherein the first light source (42) has a first light emitting surface arranged towards the first lens (41); The first circuit board (43) is extended between the first side (11a) and the second side (11b), and comprises a first board (431) and a second board (432); wherein the first board (431) is a hard board; and the second board (432) is a soft board; The first light source (42) is arranged on the first plate (431); The second plate body (432) comprises a first end (432a) and a second end (432b); the first end (432a) is connected to the first plate body (431), and the second end (432b) extends toward the second side (11b) and is connected to the circuit control unit (60); The aiming unit (50) comprises a second lens (51) arranged toward the first side (11a) and a second light source (52) arranged opposite to the second lens (51); the second lens (51) is a condenser lens.

8. The barcode reading device according to claim 1, characterized in that: The circuit control unit (60) comprises a second circuit board (61), a third circuit board (62), and a fourth circuit board (63) which are arranged in sequence from the second side (11b) in a direction away from the first side (11a); The second circuit board (61) is connected to the reading unit and is used for imaging; The third circuit board (62) and the fourth circuit board (63) are connected; The third circuit board (62) is connected to the fill light unit (40).

9. The barcode reading device according to claim 8, characterized in that: The second circuit board (61), the third circuit board (62) and / or the fourth circuit board (63) are circuit boards formed by bonding a soft board and a hard board.

10. The barcode reading device according to claim 8, characterized in that: The bar code reading device also includes a connecting positioning member (80) that passes through the fourth circuit board (63), the third circuit board (62) and the second circuit board (61) to the support (10).

Images