CN220208277U

CN220208277U - Code reading module and code reading equipment

Info

Publication number: CN220208277U
Application number: CN202322238077.XU
Authority: CN
Inventors: 耿大为; 梁辉
Original assignee: Hangzhou Hikrobot Co Ltd
Current assignee: Hangzhou Hikrobot Co Ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2023-12-19
Anticipated expiration: 2033-08-18

Abstract

The utility model discloses a code reading module, which comprises: a housing having a lens aperture; the lens mounting seat is arranged in the lens hole and provided with a connecting end, and the connecting end is inwards recessed to form a lens mounting hole; the lens is arranged on the lens mounting seat and comprises a first lens section and a second lens section which are coaxially arranged; the first lens section is arranged in the lens mounting hole and is in clearance fit with the first lens section, the size of the second lens section is larger than that of the first lens section so as to form an annular connecting surface between the first lens section and the second lens section, and the annular connecting surface is fixedly bonded with the end face of the connecting end. The code reading device provided with the code reading module is also disclosed. The code reading module provided by the utility model is easier to ensure that the lens and the lens hole have higher coaxiality during manufacturing, and is simpler and more convenient to operate during assembly.

Description

Code reading module and code reading equipment

Technical Field

The utility model relates to the technical field of code reading equipment, in particular to a code reading module and code reading equipment.

Background

The code reading device is used for reading bar code information, and the code reading module is a core functional module in the code reading device. The code reading module generally comprises a shell, a lens, a light supplementing lamp, an electric control board and other components, and a laser used for ranging is further arranged in some code reading modules. Functional components such as a lens, a light supplementing lamp, a laser and the like are all installed in the shell, the shell is specially provided with an installation hole for the functional components, the coaxiality of the functional components and the corresponding installation holes is an important parameter which can influence the acquisition definition of the bar code, and particularly the coaxiality of the lens and the lens installation hole is important. In the prior art, in order to install a lens, an installation base is assembled in a shell, a threaded hole is formed in the installation base, external threads are formed in the lens, and the lens is in threaded connection with the installation base. Due to manufacturing tolerances, the coaxiality of the lens and the lens mounting hole is reduced by adopting the scheme, and the lens and the mounting base are high in manufacturing cost and time-consuming to operate during assembly.

In addition, generally can weld on the camera lens and be used for the flexible connector who is connected with automatically controlled board electricity, and can set up the passageway that supplies flexible connector to pass on the casing correspondingly, because camera lens and installation base adopt threaded connection, just can not guarantee the relative installation base's of flexible connector position after the camera lens installation, and then cause flexible connector to normally can not stretch into in the passageway that the casing set up in advance easily when installing the installation base to the casing, just need to rework the processing, influence production efficiency.

Disclosure of Invention

The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a code reading module and code reading equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a code reading module, comprising: a housing having a lens aperture; the lens mounting seat is arranged in the lens hole and provided with a connecting end, and the connecting end is inwards recessed to form a lens mounting hole; the lens is arranged on the lens mounting seat and comprises a first lens section and a second lens section which are coaxially arranged; the first lens section is arranged in the lens mounting hole and is in clearance fit with the first lens section, the size of the second lens section is larger than that of the first lens section so as to form an annular connecting surface between the first lens section and the second lens section, and the annular connecting surface is fixedly bonded with the end face of the connecting end.

The application of the utility model has the following beneficial effects: the lens and the lens mounting hole are designed to be in clearance fit, and compared with a threaded connection structure in the prior art, the clearance fit structure is easier to ensure coaxiality during manufacturing. Therefore, the lens and the lens hole have higher coaxiality when the lens is manufactured by adopting the scheme. In addition, through the structure to camera lens and lens mount pad design, make both bond fixedly, can realize fastening connection and the operation is more simple and convenient when the assembly.

Optionally, the terminal surface of link is provided with the point and glues the groove, annular connection face and the terminal surface of link are in the point glues groove department point glues fixedly. The adhesive dispensing operation is convenient to carry out by arranging the adhesive dispensing groove.

Optionally, the second lens segment is fixedly connected with a flexible connector, and the housing is provided with a channel for arranging the flexible connector; one of the second lens section and the connecting end is provided with a positioning groove, and the other is provided with a positioning protrusion which is in plug-in fit with the positioning groove. The positions of the positioning protrusions and the positioning grooves can be configured to enable the flexible connector to be aligned with the channel after the lens mounting seat is mounted in the lens hole, so that the positioning protrusions and the positioning grooves are matched to form a foolproof design, the lens and the lens mounting seat can be assembled quickly and accurately during assembly, and the flexible connector can be aligned with the channel on the shell during subsequent assembly.

Optionally, an image sensor electric control board is arranged at the other end of the lens mounting seat opposite to the connecting end, and the image sensor electric control board is provided with a first connector seat; the shell is fixedly provided with a main board, the main board is provided with a second connector seat, and the main board is connected with the first connector seat in an inserting way through the second connector seat to be electrically connected with the image sensor electric control board and presses the lens mounting seat. The electric connection between the main board and the image sensor electric control board can be realized by plugging the second connector seat on the main board with the first connector seat, and meanwhile, the lens mounting seat can be fixed in the shell by pressing the main board on the lens mounting seat.

Optionally, the main board is provided with a laser, the casing is provided with a laser hole, and the laser is installed in the laser hole and is in clearance fit with the laser hole.

Optionally, the code reading module further includes: a light supplementing hole formed on the housing; a light supplementing lens arranged in the light supplementing hole; and a light supplementing control board positioned in the shell and provided with a light supplementing lamp; one of the shell and the light supplementing control board is provided with a positioning column, the other one of the shell and the light supplementing control board is provided with a positioning hole, and the positioning column is in plug-in fit with the positioning hole so that the light supplementing lamp and the light supplementing hole are coaxial. Through setting up reference column and locating hole cooperation can make light filling lamp and light filling hole keep higher axiality after the assembly.

Optionally, two light supplementing holes are arranged, and the two light supplementing holes and the lens Kong Chengpin are arranged in a shape like Chinese character 'mu'.

Optionally, a third step is formed on the inner wall of the light supplementing hole, a convex edge matched with the third step is formed at the edge of the light supplementing lens, and the convex edge is fixedly adhered to the third step and is in clearance fit with the light supplementing hole. The light supplementing lens is fixed in the shell through bonding, and the coaxiality of the light supplementing lens is ensured more easily through a clearance fit structure in manufacturing.

Optionally, the light supplementing lens is provided with a hanging lug part, the light supplementing hole is provided with a groove matched with the hanging lug part, and the hanging lug part is matched with the groove to limit the assembly angle of the light supplementing lens relative to the light supplementing hole. The hanging part plays a role in fool-proof design.

In addition, the utility model also provides code reading equipment, which comprises a shell, wherein the shell is provided with a containing cavity, the code reading equipment further comprises the code reading module according to any one of the technical schemes, the code reading module is positioned in the containing cavity, and the shell is provided with a light transmission part for the code reading module to collect images. The code reading device provided by the utility model is similar to the beneficial effect reasoning process of the code reading module, and is not repeated here.

These features and advantages of the present utility model will be disclosed in more detail in the following detailed description and the accompanying drawings. The best mode or means of the present utility model will be described in detail with reference to the accompanying drawings, but is not limited to the technical scheme of the present utility model. In addition, these features, elements, and components are shown in plural in each of the following and drawings, and are labeled with different symbols or numerals for convenience of description, but each denote a component of the same or similar construction or function.

Drawings

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of a code reading module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating assembly of a lens and a lens mount;

FIG. 3 is an exploded view of a lens and a lens mount;

FIG. 4 is a cross-sectional view of a code reading module according to an embodiment;

FIG. 5 is a schematic diagram of a second embodiment of a code reading module;

fig. 6 is an exploded view of a code reading module according to an embodiment.

The LED display device comprises a shell, a lens hole, a light supplementing hole, a laser hole, a silica gel ring, a lens mounting seat, a connecting end, a lens mounting hole, a dispensing groove, a positioning protrusion, a lens, a first lens section, a second lens section, a positioning groove, a flexible connector, an image sensor electric control board, a first connector seat, a main board, a second connector seat, a first flexible connector, a laser, a light supplementing lens, a hanging lug, a light supplementing electric control board, a light supplementing lamp and a sticker.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The examples in the embodiments are intended to illustrate the present utility model and are not to be construed as limiting the present utility model.

Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself may be included in at least one embodiment disclosed herein. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

Examples: the present embodiment provides a code reading module, as shown in fig. 1 and 2, which includes a housing 1, the housing 1 is provided with a lens hole 10, a lens mount 2 is mounted in the lens hole 10, and a lens 3 is mounted on the lens mount 2. The improvement of the code reading module provided in this embodiment is that the structure of the lens 3 and the lens mount 2 is improved, so that the assembly mode of the lens 3 and the lens mount 2 is changed compared with the prior art, and the lens 3 and the lens hole 10 are easier to have higher coaxiality during manufacturing and assembly. Specifically, as shown in fig. 3, the lens mount 2 in the present embodiment has a connection end 20 and a lens mount hole 21 is formed by the connection end 20 being recessed inward, and the lens 3 includes a first lens segment 30 and a second lens segment 31 coaxially disposed. The first lens segment 30 is installed in the lens mounting hole 21 and is in clearance fit with the first lens segment 21, and the second lens segment 31 is larger than the first lens segment 30 in size to form an annular connecting surface therebetween, and the annular connecting surface is adhered and fixed to the end face of the connecting end 20. The lens 3 and the lens mounting hole 21 are designed to be clearance fit, and compared with the structure of threaded connection in the prior art, the clearance fit structure is easier to ensure coaxiality during manufacturing. Therefore, in addition, the structure of the lens 3 and the lens mounting seat 2 is designed to enable the lens 3 and the lens mounting seat 2 to be bonded and fixed during manufacturing, so that the lens mounting seat can be fastened and connected, and the operation during assembly is simpler and more convenient.

It is easy to understand that the lens 3 includes an outer housing and a lens positioned inside the outer housing, and the positioning of the lens in the outer housing is a prior art, and will not be described herein.

In this embodiment, the following manner is adopted to achieve adhesion fixation between the end face of the connection end 20 and the annular connection face: the end face of the connecting end 20 is provided with a dispensing groove 22, the annular connecting face and the end face of the connecting end 20 are fixed in a dispensing mode through dispensing at the dispensing groove 22, and dispensing operation is facilitated through the dispensing groove 22.

In this embodiment, the flexible connector 34 is fixedly connected to the second lens segment 31, the housing 1 is provided with a channel for arranging the flexible connector 34, and in order to facilitate assembly operation and ensure that the flexible connector 34 can be aligned with the channel, in this embodiment, the second lens segment 31 is provided with a positioning slot 32, and the connection end 20 is provided with a positioning protrusion 23 adapted to the positioning slot 32. The positions of the positioning boss 23 and the positioning groove 32 are configured in this embodiment such that the flexible connector 34 can be aligned with the passage after the lens mount 2 is mounted into the lens hole 10. The positioning protrusion 23 and the positioning groove 32 cooperate to form a fool-proof design, so that the lens 3 and the lens mount 2 can be assembled quickly and accurately during assembly, and the flexible connector 34 can be aligned with a channel on the housing 1 during subsequent assembly. It will be readily appreciated that in other embodiments, the detent may be provided on the connection end and the detent projection on the second lens segment.

As shown in fig. 4, 5 and 6, the other end of the lens mount 2 opposite to the connection end 20 in the present embodiment is provided with an image sensor electronic control board 4, the image sensor electronic control board 4 having a first connector holder 40; the shell 1 is fixedly provided with a main board 5, the main board 5 is provided with a second connector seat 50, and the main board 5 is connected with the image sensor electric control board 4 in an inserting way through the second connector seat 50 and the first connector seat 40, and presses the lens mounting seat 2. The electrical connection between the main board 5 and the image sensor electronic control board 4 can be realized by plugging the second connector base 50 on the main board 5 with the first connector base 40, and meanwhile, the main board 5 can be pressed on the lens mounting base 2 to fix the lens mounting base 2 in the shell 1. Further, a silica gel ring 13 may be further disposed between the housing 1 and the lens mount 2, specifically, a first step is formed on an inner wall of the lens hole 10, a second step adapted to the first step is disposed on the lens mount 2, the silica gel ring 13 is disposed between the first step and the second step, and the silica gel ring 13 is clamped between the first step and the second step under the pressing action. By providing the silicone ring 13, on the one hand, the tightness can be improved, and on the other hand, the main plate 5 and the lens mount 2 can be ensured to be assembled in place by the deformability thereof. In addition, one end of the aforementioned flexible connector 34 is welded and fixed to the lens 3, and the other end is connected to the main board 5, and in order to ensure that it is fixed relative to the housing 1 and improve the aesthetic property, the sticker 9 is used to adhere and fix it in this embodiment.

In this embodiment, the main board 5 is further provided with a laser 6, the housing 1 is provided with a laser hole 12, and the laser 6 is installed in the laser hole 12 and is in clearance fit with the laser hole 12.

This code reading module that this embodiment provided still includes the light filling subassembly, is provided with light filling hole 11 on casing 1, and the light filling subassembly is including installing the light filling lens 7 in light filling hole 11 and the light filling automatically controlled board 8 of location in casing 1, and fixed mounting has light filling lamp 80 on light filling automatically controlled board 8. In order to ensure the coaxiality between the light supplementing lamp 80 and the light supplementing hole 11, in this embodiment, a positioning hole (not shown in the figure) is provided on the light supplementing electronic control board 8, and a positioning column (not shown in the figure) is correspondingly provided on the housing 1, and the positioning column is in plug-in fit with the positioning hole so that the light supplementing lamp 80 and the light supplementing hole 11 are coaxial. The light supplementing lamp 80 and the light supplementing hole 11 can keep high coaxiality after being assembled by arranging the positioning columns to be matched with the positioning holes. It will be appreciated that in other embodiments, the positioning hole may be provided on the housing, and the positioning post may be provided on the light-compensating electronic control board accordingly. Further, the following assembly structure is adopted in this embodiment to make the light compensating lens 7 and the light compensating hole 11 have good coaxiality: a third step is formed on the inner wall of the light supplementing hole 11, and a convex edge matched with the third step is formed at the edge of the light supplementing lens 7, and the convex edge is fixedly adhered to the third step and is in clearance fit with the light supplementing hole 11. In the same manner as described above, the clearance fit structure is easier to ensure coaxiality in manufacturing, and the light-compensating lens 7 can be fixed in the housing 1 by bonding. Through the above arrangement, the light supplementing lens 7 and the light supplementing lamp 80 each have good coaxiality with the light supplementing hole 11, and thus, the light supplementing lens 7 and the light supplementing lamp 80 can also have good coaxiality.

The light supplementing assembly is also controlled by the main board 5 to work, and specifically, the main board 5 is electrically connected with the light supplementing electric control board 8 through the second flexible connector 51.

For easy assembly, the light compensating lens 7 is further provided with a hanging lug 70, the light compensating hole 11 is provided with a groove matched with the hanging lug 70, and the hanging lug 70 is matched with the groove to limit the assembly angle of the light compensating lens 7 relative to the light compensating hole 11. Ear 70 serves as a fool-proof design. In addition, in order to obtain a good light supplementing effect, two light supplementing holes 11 are provided in the present embodiment, and the two light supplementing holes 11 and the lens hole 10 are arranged in a delta shape.

In addition, as described above, in the code reading module provided in the present embodiment, the lens mount 2 is positioned through the lens hole 10 on the housing 1; the light supplementing lens 7 is positioned through a light supplementing hole 11 on the shell 1, and the light supplementing lamp 80 is positioned through a positioning hole of the light supplementing lamp bank 8 and a positioning column on the shell 1; the laser 6 is positioned through a laser aperture 12 in the housing 1. Therefore, the optical components such as the lens, the light supplementing lamp, the laser and the like are positioned by the positioning structure (the hole structure or the protruding structure) arranged on the shell 1, so that the relative position among the optical components can be kept to be high in precision only by ensuring the machining precision of the shell 1 (namely ensuring the relative position among the positioning structures), and better image acquisition effect is achieved.

The embodiment also provides a code reading device, which comprises a housing, wherein the housing is provided with a cavity, the code reading module provided by the embodiment is fixedly arranged in the cavity, and the housing is provided with a light transmission part for the code reading module to collect images.

The above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and it should be understood by those skilled in the art that the present utility model includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. A code reading module, comprising:

a housing (1) having a lens aperture (10);

a lens mount (2) mounted in the lens hole (10) and having a connection end (20), and a lens mounting hole (21) formed by the connection end (20) being recessed inward; the method comprises the steps of,

a lens (3) mounted on the lens mount (2) and including a first lens segment (30) and a second lens segment (31) coaxially arranged;

the first lens section (30) is installed in the lens installation hole (21) and is in clearance fit with the first lens section, the size of the second lens section (31) is larger than that of the first lens section (30) so as to form an annular connecting surface between the first lens section and the second lens section, and the annular connecting surface is fixedly bonded with the end face of the connecting end (20).

2. The code reading module according to claim 1, wherein the end face of the connecting end (20) is provided with a dispensing slot (22), and the annular connecting surface and the end face of the connecting end (20) are fixed by dispensing glue at the dispensing slot (22).

3. The code reading module according to claim 1 or 2, wherein the second lens section (31) is fixedly connected with a flexible connector (34), the housing (1) being provided with a channel for arranging the flexible connector (34);

one of the second lens section (31) and the connecting end (20) is provided with a positioning groove (32), and the other is provided with a positioning protrusion (23) which is in plug-in fit with the positioning groove (32).

4. The code reading module according to claim 1, wherein an image sensor electric control board (4) is arranged at the other end of the lens mounting base (2) opposite to the connecting end (20), and the image sensor electric control board (4) is provided with a first connector base (40);

the shell (1) is fixedly provided with a main board (5), the main board (5) is provided with a second connector seat (50), and the main board (5) is connected with the first connector seat (40) in an inserting mode through the second connector seat (50) to be electrically connected with the image sensor electric control board (4) and presses the lens mounting seat (2).

5. The code reading module according to claim 4, wherein the main board (5) is provided with a laser (6), the housing (1) is provided with a laser hole (12), and the laser (6) is installed in the laser hole (12) and is in clearance fit with the laser hole.

6. The code reading module of claim 1, wherein the code reading module further comprises:

a light supplementing hole (11) formed in the housing (1);

a light supplementing lens (7) installed in the light supplementing hole (11); the method comprises the steps of,

a light supplementing electric control plate (8) positioned in the shell (1) and provided with a light supplementing lamp (80);

one of the shell (1) and the light supplementing control board (8) is provided with a positioning column, the other one is provided with a positioning hole, and the positioning column is in plug-in fit with the positioning hole so that the light supplementing lamp (80) is coaxial with the light supplementing hole (11).

7. The code reading module according to claim 6, wherein two light supplementing holes (11) are provided, and the two light supplementing holes (11) and the lens hole (10) are arranged in a delta shape.

8. The code reading module according to claim 6, wherein a third step is formed on the inner wall of the light supplementing hole (11), a convex edge matched with the third step is formed on the edge of the light supplementing lens (7), and the convex edge is fixedly adhered to the third step and is in clearance fit with the light supplementing hole (11).

9. The code reading module according to claim 8, wherein the light supplementing lens (7) is provided with a hanging lug part (70), the light supplementing hole (11) is provided with a groove matched with the hanging lug part (70), and the hanging lug part (70) is matched with the groove to limit the assembly angle of the light supplementing lens (7) relative to the light supplementing hole (11).

10. A code reading apparatus comprising a housing, the housing forming a cavity, further comprising a code reading module according to any one of claims 1 to 9, the code reading module being positioned in the cavity, and the housing being provided with a light transmitting portion for the code reading module to collect an image.