Main beam structure and scanner

Abstract

The utility model provides a main beam structure and a scanner, the main beam structure comprises a plurality of optical lenses and a cross beam formed by crossing at least two support beams, any one support beam is fixedly provided with at least two optical lenses, the lens sides of the plurality of optical lenses are located at the same side of the cross beam, and the lens sides of the plurality of optical lenses are located at the same side of the cross beam. The working distance and / or range corresponding to at least one optical lens on each supporting beam is different from the working distance and / or range corresponding to the optical lenses on other supporting beams; the farthest working distance and / or the maximum range which can be formed by the optical lenses of at least one supporting beam are / is different from the farthest working distance and / or the maximum range which can be formed by the optical lenses of other supporting beams. According to the technical scheme provided by the utility model, the problem that in the prior art, a plurality of optical lenses on the main beam structure cannot be reasonably arranged while the view field requirement is ensured can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a main beam structure and a scanner. Background Art

[0002] Currently, scanner equipment on the market is usually a single-field optical system, in which the lens and optical devices (such as speckle projectors, infrared lasers, blue light lasers, etc.) are fixed on the main beam, which is generally a straight-line structure.

[0003] For the main beam structure of the scanner in the prior art, in order to ensure that it has a sufficiently large field of view, or to achieve the multi-field of view requirements of scanning by switching between long and short distances, it is usually necessary to set up multiple optical components such as optical lenses. However, this requires the main beam structure to be lengthened as a whole so that all optical lenses can be set on the same straight-line structure (that is, multiple fields of view are formed by multiple optical lenses on the same straight-line structure). It is impossible to achieve a reasonable layout of the multiple optical lenses on the main beam structure while ensuring the field of view requirements. Utility Model Content

[0004] The utility model provides a main beam structure and a scanner to solve the problem in the prior art that a plurality of optical lenses on the main beam structure cannot be reasonably arranged while ensuring the field of view requirement.

[0005] In order to solve the above problems, according to one aspect of the present invention, the present invention provides a main beam structure, which includes multiple optical lenses and a cross beam formed by the intersection of at least two support beams. At least two optical lenses are fixedly installed on any support beam, and the lens sides of the multiple optical lenses are located on the same side of the cross beam. At least one optical lens on each support beam has a different working distance and / or range corresponding to the optical lenses on other support beams, and the farthest working distance and / or maximum range that can be formed by the multiple optical lenses of at least one support beam is different from the farthest working distance and / or maximum range that can be formed by the multiple optical lenses of other support beams.

[0006] Furthermore, the support beam has a mounting hole, and one end of the optical lens is inserted into the mounting hole. The main beam structure also includes a clamp assembly arranged on the support beam. A clamp assembly is correspondingly provided at any mounting hole, and the clamp assembly can adjust the tightness to clamp the optical lens protruding from the mounting hole.

[0007] Furthermore, the mounting hole has an internal thread, and the end of the optical lens extending into the mounting hole has an external thread, and the optical lens is threadedly mounted in the mounting hole.

[0008] Furthermore, the clamp assembly includes an adjusting member, a transition structure and an annular clamp having an opening, the transition structure being arranged on the other side opposite to the opening of the annular clamp, and the transition structure being used to connect and space the annular clamp and the support beam; the adjusting member being arranged at the opening of the annular clamp and being used to adjust the opening size of the annular clamp so as to adjust the inner diameter of the annular clamp and loosen or tighten the optical lens.

[0009] Furthermore, both ends of the opening of the annular clamp are provided with adjustment protrusions, which are arranged opposite to each other and parallel to each other, one of the adjustment protrusions has an internal threaded hole, and the other adjustment protrusion has a corresponding through hole, and the adjustment part is a bolt part, one end of the bolt part passes through the through hole and is threadedly connected to the internal threaded hole.

[0010] Furthermore, the transition structure is an arc-shaped seat body integrally formed between the annular clamp and the support beam, and the extended shape of the arc-shaped seat body is adapted to the annular clamp.

[0011] Furthermore, at least one optical lens forms a same scanning range or distance, and axes of multiple optical lenses forming the same scanning range or distance intersect at the same point.

[0012] Furthermore, the cross beam is a cross beam, and the center of the overlapping area of ​​the two support beams of the cross beam is used as the tilt reference, and both ends of any support beam are tilted toward the lens side of the optical lens.

[0013] Furthermore, the main beam structure also includes a circuit board and a light projection module. The light projection modules are distributed at different positions of the cross beam. The circuit board is arranged in the intersection area of ​​the cross beam and is electrically connected to the light projection module and multiple optical lenses. The light projection module and the optical lens are arranged correspondingly. One light projection module corresponds to at least one optical lens, and the axis of the light projection module and the corresponding optical lens intersect at one point.

[0014] According to one aspect of the utility model, the utility model provides a scanner, which includes a shell and the above-mentioned main beam structure. The shell has a placement cavity whose shape is adapted to the main beam structure. The main beam structure also includes multiple mounting seats, which are distributed at different positions of the cross beam. The mounting seats are connected to the inner wall of the placement cavity through a bolt assembly.

[0015] Furthermore, the area formed by the intersection of the multiple cross beams is the intersection area, and the maximum area formed by the connecting line of the projections of the multiple mounting seats on the plane where the intersection area is located covers the intersection area.

[0016] By applying the technical solution of the present invention, a main beam structure is provided, which includes multiple optical lenses and a cross beam formed by the intersection of at least two support beams. At least two optical lenses are fixedly installed on any support beam, and the lens sides of the multiple optical lenses are located on the same side of the cross beam. At least one optical lens on each support beam has a different working distance and / or range corresponding to the optical lenses on other support beams. The farthest working distance and / or maximum range that can be formed by the multiple optical lenses of at least one support beam is different from the farthest working distance and / or maximum range that can be formed by the multiple optical lenses of other support beams.

[0017] By adopting this solution, multiple fields of view with different working distances and / or ranges can be formed on different support beams, and the farthest working distance and / or maximum range that can be formed by the multiple optical lenses of at least one support beam are different from the farthest working distance and / or maximum range that can be formed by the multiple optical lenses of other support beams. This avoids the situation where multiple fields of view are formed by multiple optical lenses on the same I-shaped structure, and it is impossible to achieve a reasonable layout of the multiple optical lenses on the main beam structure while ensuring the field of view requirements. This is beneficial to improving the applicability of the main beam structure while ensuring that the maximum length of the main beam structure along a certain direction remains unchanged, and at the same time facilitates the operator to switch the field of view according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a main beam structure provided by an embodiment of the present utility model is shown;

[0020] Figure 2 Shown Figure 1 A schematic diagram of the main beam structure from another perspective;

[0021] Figure 3 Shown Figure 1 A magnified view of position A in the middle;

[0022] Figure 4 Shown Figure 1 The main view of the main beam structure;

[0023] Figure 5 Shown Figure 1 A side view of the main beam structure;

[0024] Figure 6 Shown Figure 5 A partial cross-sectional view of

[0025] Figure 7 Shown Figure 1 A top view of the main beam structure;

[0026] Figure 8 A schematic structural diagram of a scanner provided by another embodiment of the present invention is shown;

[0027] Figure 9 Shown Figure 8 Schematic diagram of the internal structure of the scanner.

[0028] The above drawings include the following reference numerals:

[0029] 10. Main beam structure; 101. Mounting hole; 11. Cross beam; 111. Support beam; 12. Optical lens; 13. Clamp assembly; 131. Adjustment member; 132. Adapter structure; 133. Ring clamp; 1331. Adjustment protrusion; 14. Circuit board; 15. Projection module; 16. Mounting base;

[0030] 20. Shell; 201. Placement cavity; 21. Rear shell; 22. Side shell; 23. Front side screen; 24. Base; 25. Top shell. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way serves as any limitation on the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 9 As shown, an embodiment of the present invention provides a main beam structure 10, which includes multiple optical lenses 12 and a cross beam 11 formed by the intersection of at least two support beams 111. At least two optical lenses 12 are fixedly installed on any support beam 111, and the lens sides of the multiple optical lenses 12 are located on the same side of the cross beam 11. At least one optical lens 12 on each support beam 111 has a different working distance and / or range corresponding to the optical lenses 12 on other support beams 111. The farthest working distance and / or maximum range that can be formed by the multiple optical lenses 12 of at least one support beam 111 is different from the farthest working distance and / or maximum range that can be formed by the multiple optical lenses 12 of other support beams 111.

[0033] By adopting this embodiment, multiple fields of view with different working distances and / or ranges can be formed on different support beams 111, and the farthest working distance and / or maximum range that can be formed by the multiple optical lenses 12 of at least one support beam 111 are different from the farthest working distance and / or maximum range that can be formed by the multiple optical lenses 12 of other support beams 111. This avoids the situation where multiple fields of view are formed by multiple optical lenses 12 on the same I-shaped structure, and it is impossible to achieve a reasonable layout of the multiple optical lenses 12 on the main beam structure 10 while ensuring the field of view requirements. This is beneficial to improving the applicability of the main beam structure 10 while ensuring that the maximum length of the main beam structure 10 along a certain direction remains unchanged, and at the same time facilitates the operator to switch the field of view according to actual conditions.

[0034] like Figures 1 to 7 As shown, the support beam 111 has a mounting hole 101, and one end of the optical lens 12 is inserted into the mounting hole 101. The main beam structure 10 also includes a clamp assembly 13 disposed on the support beam 111. Each mounting hole 101 is correspondingly provided with a clamp assembly 13. The clamp assembly 13 can adjust the tightness of the optical lens 12 protruding from the mounting hole 101. This arrangement facilitates the limited installation of the optical lens 12, ensures the reliability and stability of the installation of the optical lens 12, and further improves the reliability and stability of the field of view formed by the optical lens 12.

[0035] Specifically, the mounting hole 101 has an internal thread, and the end of the optical lens 12 extending into the mounting hole 101 has an external thread, and the optical lens 12 is threadedly mounted in the mounting hole 101. This arrangement facilitates the pre-installation of the optical lens 12, is easy to adjust, and provides a reliable and stable connection, low cost, and easy maintenance.

[0036] like Figure 3 and Figure 6 As shown, the clamp assembly 13 includes an adjusting member 131, a transition structure 132 and an annular clamp 133 with an opening. The transition structure 132 is arranged on the other side opposite to the opening of the annular clamp 133. The transition structure 132 is used to connect and space the annular clamp 133 and the support beam 111; the adjusting member 131 is arranged at the opening of the annular clamp 133 and is used to adjust the opening size of the annular clamp 133 to adjust the inner diameter of the annular clamp 133 and loosen or tighten the optical lens 12. With this arrangement, the tightness of the annular clamp 133 can be adjusted by adjusting the opening of the annular clamp 133 through the adjusting member 131, which improves the convenience of adjustment. At the same time, the annular clamp 133 can be transferred and installed through the transfer structure 132, so that it can be suspended at the corresponding mounting hole 101, which is conducive to ensuring that the annular clamp 133 reliably clamps the optical lens 12, realizes the clamping support and stabilization of the optical lens 12, and avoids the situation where the optical lens 12 is too long in the mounting hole 101 and is prone to shaking or damage.

[0037] It can be understood that the axis of the annular clamp 133 coincides with the axis of the mounting hole 101, and the minimum inner diameter of the annular clamp 133 when relaxed is larger than the inner diameter of the mounting hole 101 or the outer diameter of the optical lens 12 to ensure that the optical lens 12 can pass through the annular clamp 133 for disassembly and assembly; the minimum inner diameter of the annular clamp 133 when clamped (when the optical lens 12 is not passed through it) is preferably smaller than the outer diameter of the optical lens 12 to ensure that it can clamp the optical lens 12 during the adjustment process, and avoid the situation where the optical lens 12 cannot be clamped or cannot be stably clamped when the minimum inner diameter of the annular clamp 133 when clamped (when the optical lens 12 is not passed through it) is greater than or equal to the outer diameter of the optical lens 12.

[0038] like Figure 3 As shown, the opening of the annular clamp 133 is provided with adjustment protrusions 1331 at both ends. The two adjustment protrusions 1331 are arranged opposite and parallel to each other. One adjustment protrusion 1331 has an internally threaded hole, and the other adjustment protrusion 1331 has a corresponding through-hole. The adjustment member 131 is a bolt, one end of which passes through the through-hole and is threadedly connected to the internally threaded hole. This arrangement allows the two adjustment protrusions 1331 to be moved closer or further apart by rotating the bolt, thereby adjusting the tightness of the annular clamp 133. This simple and reliable adjustment structure is low-cost and easy to maintain.

[0039] Specifically, the adapter structure 132 is an arcuate seat integrally formed between the annular clamp 133 and the support beam 111. The extended shape of the arcuate seat matches the annular clamp 133. This arrangement facilitates the processing of the adapter structure 132 and the annular clamp 133, improving the ease of fabrication. It also helps ensure the coaxiality of the annular clamp 133 and the mounting hole 101, thereby improving the reliability and stability of the clamp assembly 13 and the mounting hole 101 in limiting the installation of the optical lens 12.

[0040] In this embodiment, at least one optical lens 12 corresponds to forming the same scanning range or distance, and the axes of the multiple optical lenses 12 used to form the same scanning range or distance intersect at the same point, that is, the axes of the multiple optical lenses 12 used to form the field of view of the same scanning range or distance intersect at the same point to ensure the reliability and stability of the field of view formed therefrom.

[0041] Preferably, multiple optical lenses 12 on the same support beam 111 are used to form at least one scanning range or distance. The operator can adjust to different scanning ranges or distances by using different support beams 111, which facilitates field of view switching and improves applicability.

[0042] Specifically, the cross beam 11 is formed by the intersection of two mutually perpendicular support beams 111 (a horizontal beam and a vertical beam). The center of the overlapping area of ​​the two support beams 111 of the cross beam is used as the tilt reference, and both ends of each support beam 111 are tilted toward the lens side of the optical lens 12. This arrangement is conducive to ensuring the orientation of the optical lens 12 while achieving vertical installation of the optical lens 12 on the support beam 111, avoiding the situation where the optical lens 12 needs to be tilted relative to the support beam 111 to ensure the scanning range, distance, orientation, etc. of the optical lens 12 when the support beam 111 is a straight beam, which may easily lead to unstable or unreliable installation of the optical lens 12.

[0043] In this embodiment, the scanning distances and ranges of the fields of view formed by the optical lenses 12 on the crossbeam and the longitudinal beam are different. The maximum scanning distance and maximum range of the field of view formed by the longitudinal beam are greater than the maximum scanning distance and maximum range of the field of view formed by the crossbeam. When the operator needs a small field of view, scanning, shooting, imaging, etc. can be performed through the multiple optical lenses 12 on the crossbeam. When a large field of view is needed, it can be switched to the multiple optical lenses 12 on the longitudinal beam.

[0044] Furthermore, the main beam structure 10 also includes a circuit board 14 and a light projection module 15. The light projection modules 15 are distributed at different positions of the cross beam 11. The circuit board 14 is set in the intersection area of ​​the cross beam 11 and is electrically connected to the light projection module 15 and multiple optical lenses 12. The light projection module 15 is set corresponding to the optical lens 12. One light projection module 15 corresponds to at least one optical lens 12. The axis of a group or a single optical lens 12 corresponding to the same light projection module 15 needs to extend to the same point. There can be multiple light projection modules 15 on the same support beam 111, and multiple light projection modules 15 correspond to multiple groups or multiple optical lenses 12. With this arrangement, the coordination of the circuit board 14, the light projection module 15 and the optical lens 12 can realize multi-field scanning (i.e., multiple scanning distances and ranges) of the scanned object, shooting, imaging, etc. The light projection module 15 intersects with the axis of the corresponding optical lens 12 at one point to ensure the reliability of scanning, shooting, imaging, etc.

[0045] like Figure 8 and Figure 9 As shown, another embodiment of the present invention provides a scanner, which includes a shell 20 and the above-mentioned main beam structure 10. The shell 20 has a placement cavity 201 whose shape is adapted to the main beam structure 10. The main beam structure 10 also includes a plurality of mounting seats 16. The plurality of mounting seats 16 are distributed at different positions of the cross beam 11. The mounting seats 16 are connected to the inner wall of the placement cavity 201 through a bolt assembly.

[0046] In this embodiment, the housing 20 includes a base 24, a rear housing 21, a front screen 23, a top housing 25, and two side housings 22, symmetrically arranged on the two side housings 22. The top housing 25, rear housing 21, and front screen 23 are respectively used to block the multiple openings after the two side housings 22 are connected, forming a quasi-enclosed cavity for mounting the main beam structure 10. Multiple mounting blocks 16 are spaced apart along the longitudinal beams of the cross beam at different locations. The multiple mounting blocks 16 have at least two mutually perpendicular mounting orientations for connecting the housing 20 and the main beam structure 10, ensuring reliable and stable cross beam mounting. Furthermore, the scanner employing the main beam structure 10 provided in the above embodiment can form multiple fields of view with different working distances and / or ranges on different support beams 111. This improves the applicability of the main beam structure 10 while ensuring that the maximum length of the main beam structure 10 along a particular direction remains unchanged, and also facilitates the operator's ability to switch fields of view according to actual conditions.

[0047] Specifically, if Figure 4 As shown, the area formed by the intersection of multiple cross beams is the intersection area, that is, the area formed by the intersection of the horizontal beam and the vertical beam in this embodiment is the intersection area. The maximum area formed by the line connecting the projections of the multiple mounting blocks 16 on the plane where the intersection area is located covers the intersection area. This arrangement ensures that the mounting blocks 16 are arranged outside the intersection area, ensuring the installation stability of the intersection area. The intersection area is the overlapping area of ​​the horizontal beam and the vertical beam, ensuring the installation stability of the intersection area. In other words, the reliability and stability of the connection between the multiple mounting blocks 16 and the main beam structure 10 and the shell 20 are further improved.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0050] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A main beam structure, characterized in that: The main beam structure comprises a plurality of optical lenses (12) and a cross beam (11) formed by the intersection of at least two support beams (111); at least two optical lenses (12) are fixedly mounted on any one of the support beams (111); the lens sides of the plurality of optical lenses (12) are located on the same side of the cross beam (11); at least one optical lens (12) on each support beam (111) has a different working distance and / or range from the optical lenses (12) on other support beams (111); and the farthest working distance and / or maximum range that can be formed by the plurality of optical lenses (12) on at least one support beam (111) is different from the farthest working distance and / or maximum range that can be formed by the plurality of optical lenses (12) on other support beams (111).

2. The main beam structure according to claim 1, characterized in that: The support beam (111) has a mounting hole (101), one end of the optical lens (12) is inserted into the mounting hole (101), and the main beam structure further comprises a clamp assembly (13) arranged on the support beam (111), and the clamp assembly (13) is correspondingly arranged at any one of the mounting holes (101), and the clamp assembly (13) can adjust the tightness of the clamp to clamp the optical lens (12) protruding from the mounting hole (101).

3. The main beam structure according to claim 2, characterized in that: The mounting hole (101) has an internal thread, and one end of the optical lens (12) extending into the mounting hole (101) has an external thread, and the optical lens (12) is threadedly mounted in the mounting hole (101).

4. The main beam structure according to claim 2, characterized in that: The clamp assembly (13) comprises an adjusting member (131), a transition structure (132), and an annular clamp (133) having an opening, wherein the transition structure (132) is arranged on the other side opposite to the opening of the annular clamp (133), and the transition structure (132) is used to connect and space the annular clamp (133) and the support beam (111); the adjusting member (131) is arranged at the opening of the annular clamp (133) and is used to adjust the opening size of the annular clamp (133), so as to adjust the inner diameter of the annular clamp (133) and tighten or loosen the optical lens (12).

5. The main beam structure according to claim 4, characterized in that: Both ends of the opening of the annular clamp (133) are provided with adjustment protrusions (1331), and the two adjustment protrusions (1331) are arranged opposite to each other and parallel to each other, one of the adjustment protrusions (1331) has an internal threaded hole, and the other adjustment protrusion (1331) has a corresponding through hole, and the adjustment member (131) is a bolt member, one end of which passes through the through hole and is threadedly connected to the internal threaded hole.

6. The main beam structure according to claim 4, characterized in that: The transition structure (132) is an arc-shaped seat body integrally formed between the annular clamp (133) and the support beam (111), and the extended shape of the arc-shaped seat body is adapted to the annular clamp (133).

7. The main beam structure according to claim 1, characterized in that: At least one of the optical lenses (12) forms a corresponding same scanning range or distance, and the axes of the multiple optical lenses (12) used to form the same scanning range or distance intersect at the same point.

8. The main beam structure according to claim 1, characterized in that: The cross beam (11) is a cross beam, and the center of the overlapping area of ​​the two support beams (111) of the cross beam is used as the tilt reference, and both ends of any one of the support beams (111) are tilted toward the lens side of the optical lens (12).

9. The main beam structure according to claim 1, characterized in that: The main beam structure further comprises a circuit board (14) and a light projection module (15). The light projection modules (15) are distributed at different positions of the cross beam (11). The circuit board (14) is arranged in the intersection area of ​​the cross beam (11) and is electrically connected to the light projection module (15) and the plurality of optical lenses (12). The light projection module (15) is arranged corresponding to the optical lens (12). One light projection module (15) corresponds to at least one optical lens (12), and the axis of the light projection module (15) and the corresponding optical lens (12) intersect at one point.

10. A scanner, characterized in that: The scanner includes a shell (20) and a main beam structure according to any one of claims 1 to 9, the shell (20) has a placement cavity (201) whose shape is adapted to the main beam structure, and the main beam structure also includes a plurality of mounting seats (16), and the plurality of mounting seats (16) are distributed at different positions on the cross beam (11), and the mounting seats (16) are connected to the inner wall of the placement cavity (201) through a bolt assembly.

11. The scanner according to claim 10, wherein: The area formed by the intersection of the plurality of cross beams is the intersection area, and the maximum area formed by the connection line of the projections of the plurality of mounting seats (16) on the plane where the intersection area is located covers the intersection area.

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