Scanner

Abstract

The invention provides a scanner, which comprises a shell, a front side screen arranged on the shell, and a main beam structure and a main board structure arranged in the shell, the main beam structure and the main board structure are arranged at an interval, the main board structure comprises a main board body and a fixing frame group, the main board body is connected with the shell through the fixing frame group, and the main board body is connected with the shell through the fixing frame group. A plurality of adapters are arranged between the fixing frame group and the shell as well as between the fixing frame group and the front side screen, the adapters are distributed at different positions of the shell and the front side screen, and the adapters have a plurality of different mounting directions for connecting the fixing frame group and the shell as well as the fixing frame group and the front side screen. By adopting the scheme, the mainboard structure and the main beam structure are arranged at an interval, so that the situation that the precision of an optical assembly arranged on the main beam structure is influenced by the deformation of the main beam structure easily caused by the heating of the mainboard structure when the mainboard structure is directly arranged on the main beam structure is avoided, and the optical precision and the use effect of the scanner are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a scanner. Background Art

[0002] For scanner-type detection equipment in the prior art, the main circuit board is usually installed on the main beam (main beam structure) by fasteners such as screws to achieve fixed installation of the main circuit board (main board structure). This fixed installation method is simple to operate and has no problem for detection equipment with low precision requirements. However, for detection equipment with high detection precision requirements, since the main circuit board will generate heat during use, the main beam where the main circuit board is installed is prone to deformation due to heat, which will affect the installation accuracy and scanning accuracy of optical components such as cameras installed on the main beam, and further affect the optical accuracy and use effect of the scanner-type detection equipment. Summary of the invention

[0003] The invention provides a scanner to solve the problem in the prior art that when a main circuit board and a main beam are installed together, the main beam is easily deformed by heat, thereby affecting the optical accuracy and use effect of the scanner.

[0004] In order to solve the above problems, the present invention provides a scanner, which includes a shell, a front side screen arranged on the shell, and a main beam structure and a main board structure arranged in the shell, the main beam structure and the main board structure are arranged at intervals, the main board structure includes a main board body and a fixed frame group, the main board body is connected to the shell through the fixed frame group, and there are multiple adapters between the fixed frame group and the shell, and between the fixed frame group and the front side screen. The multiple adapters are distributed at different positions of the shell and the front side screen, and the multiple adapters have multiple different installation directions for connecting the fixed frame group and the shell, and the fixed frame group and the front side screen.

[0005] Furthermore, the shell includes a left shell and a right shell that are symmetrically installed, and the fixing frame group includes a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are fixedly arranged on the front and rear sides of the main board body, and the first fixing frame is connected to at least one of the left shell and the right shell through at least one adapter. When the first fixing frame is connected to one of the left shell and the right shell, the second fixing frame is connected to at least the other of the left shell and the right shell through at least one adapter.

[0006] Furthermore, the left shell and the right shell are connected to form a front opening, the front screen is arranged at the front opening, the first fixing frame is arranged on the side of the main board body facing the front screen, and the first fixing frame is connected to the front screen through at least one adapter.

[0007] Furthermore, the adapter is a bolt assembly, and the fixing frame assembly is fixedly connected to the main board, the shell, and the front side screen through multiple bolt assemblies.

[0008] Furthermore, the scanner has a vertically arranged symmetry plane which divides at least the shell and the fixed frame group into two symmetrical parts. The main board body and the symmetry plane are perpendicular to each other. The fixed frame group and the shell and the front side screen are connected by at least three groups of bolt assemblies with different installation directions. The first group of bolt assemblies is a first bolt group with an installation direction perpendicular to the symmetry plane. The second group of bolt assemblies is a second bolt group with an installation direction parallel to the symmetry plane and the main board body. The third group of bolt assemblies is a third bolt group with an installation direction perpendicular to the front side screen.

[0009] Furthermore, the fixing frame group includes a first fixing frame, which is arranged in the lower area of ​​the side of the main board body facing the front side screen, the first fixing frame includes a first frame body extending in a direction perpendicular to the symmetry plane and a plurality of first transfer protrusions symmetrically distributed at both ends of the first frame body, the plurality of first transfer protrusions are arranged on the side of the first frame body facing the front side screen, the plurality of first transfer protrusions are arranged perpendicular to the front side screen and are connected to the front side screen through a third bolt group, the shell includes a left shell and a right shell symmetrically installed, a symmetry plane is formed between the left shell and the right shell, and the first frame body is respectively connected to the left shell and the right shell through a second bolt group.

[0010] Furthermore, the fixing frame group includes a second fixing frame, which is arranged in the upper area of ​​the side of the main board body away from the front side screen, the second fixing frame includes a second frame body extending in a direction perpendicular to the symmetry plane and a plurality of second transfer protrusions symmetrically distributed at both ends of the second frame body, the shell includes a left shell and a right shell symmetrically installed, and a symmetry plane is formed between the left shell and the right shell, and the plurality of second transfer protrusions are arranged on the top of the second frame body and are respectively connected to the left shell and the right shell through a first bolt group.

[0011] Furthermore, the fixing frame group includes a first fixing frame and a second fixing frame arranged on the front and rear sides of the main board body, the first fixing frame includes a first frame body and a plurality of third transfer protrusions symmetrically arranged on both sides of the symmetry plane, the third transfer protrusion is arranged on the side of the first frame body facing the main board body, the second fixing frame includes a second frame body and a plurality of fourth transfer protrusions symmetrically arranged on both sides of the symmetry plane, the fourth transfer protrusion is arranged on the side of the second frame body facing the main board body, the third transfer protrusion and the fourth transfer protrusion are both perpendicular to the main board body and fixedly connected to the main board body by a bolt assembly, the first frame body is separated from the main board body by the third transfer protrusion, and the second frame body is separated from the main board body by the fourth transfer protrusion.

[0012] Furthermore, the main beam structure includes a cross beam and a plurality of mounting seats, the plurality of mounting seats are distributed at different positions of the cross beam, and the mounting seats are connected to the shell through a bolt assembly.

[0013] Furthermore, the scanner has a vertically arranged symmetry plane which divides the shell into at least two symmetrical parts, the installation direction of the bolt assembly between a part of the mounting seat and the shell is a first direction, and the installation direction of the bolt assembly between another part of the mounting seat and the shell is a second direction, the first direction is perpendicular to the symmetry plane, and the second direction is parallel to the symmetry plane.

[0014] Furthermore, the cross beam is formed by the intersection of a transverse beam and a longitudinal beam, and a plurality of mounting seats are distributed on the periphery of the longitudinal beam along the extension direction of the longitudinal beam, and the plurality of mounting seats are distributed at least on the upper and lower sides of the transverse beam.

[0015] Further, the area formed by the intersection of the cross beam and the longitudinal beam is the intersection area, and the maximum area formed by the connecting line of the projections of the plurality of mounting seats on the plane where the intersection area is located covers the intersection area.

[0016] Furthermore, the shell has a accommodating cavity and a limiting cavity connected to the bottom of the accommodating cavity, the radial dimension of the accommodating cavity is larger than the radial dimension of the limiting cavity, the main beam structure is inserted into the accommodating cavity and the limiting cavity, the outer peripheral shape of the main beam structure is adapted to the shapes of the accommodating cavity and the limiting cavity, the main board structure is arranged in the accommodating cavity and its shape is adapted to the shape of the accommodating cavity, and there are multiple mounting protrusions in the accommodating cavity and the limiting cavity, some of the mounting protrusions are connected to the main board structure through adapters, and other parts of the mounting protrusions are used to connect to the main beam structure.

[0017] By applying the technical solution of the present invention, a scanner is provided, which includes a shell, a front side screen arranged on the shell, and a main beam structure and a main board structure arranged in the shell, the main beam structure and the main board structure are arranged at intervals, the main board structure includes a main board body and a fixed frame group, the main board body is connected to the shell through the fixed frame group, there are multiple adapters between the fixed frame group and the shell, and between the fixed frame group and the front side screen, the multiple adapters are distributed at different positions of the shell and the front side screen, and the multiple adapters have multiple different installation directions for connecting the fixed frame group and the shell, and the fixed frame group and the front side screen.

[0018] By adopting this solution, the mainboard structure and the main beam structure are spaced apart to avoid the situation where the mainboard structure is directly installed on the main beam structure and the heat generated by the mainboard structure easily causes the main beam structure to deform, thereby affecting the accuracy of the optical components installed on the main beam structure, thereby ensuring the optical accuracy and use effect of the scanner. Furthermore, the mainboard body is fixedly connected to the housing and the front side screen through a fixed frame group and multiple adapters, and the multiple adapters have different installation directions, which is conducive to ensuring the reliability and stability of the mainboard structure installation, thereby ensuring the reliability of the scanner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of a scanner provided by an embodiment of the present invention is shown;

[0021] Figure 2 Shows Figure 1 A cross-sectional view of a scanner;

[0022] Figure 3 Shows Figure 1 A schematic diagram of the structure of the right shell of the scanner;

[0023] Figure 4 Shows Figure 1 A schematic diagram of the structure of a rear shell of a scanner;

[0024] Figure 5 Shows Figure 1 A front view of a scanner;

[0025] Figure 6 Shows Figure 1 A schematic diagram of the internal structure of the scanner in a rear-view perspective;

[0026] Figure 7 Shows Figure 1 A schematic diagram of another internal structure of the scanner in a rear-view perspective;

[0027] Figure 8 Shows Figure 1 A schematic diagram of the assembly of a first heat dissipation structure, a mainboard structure and a fan assembly of a scanner;

[0028] Fig. 9 Shows Figure 1 A schematic diagram of the assembly of the first heat dissipation structure, the mainboard structure and the fan assembly of the scanner from another perspective;

[0029] Fig.10 Shows Figure 8 A top view of

[0030] Fig.11 Shows Figure 8 A structural schematic diagram of one of the first heat dissipation structures;

[0031] Fig.12 Shows Figure 8 A structural schematic diagram of another first heat dissipation structure;

[0032] Fig.13 Shows Figure 1 A schematic diagram of the structure of the main beam structure of the scanner;

[0033] Fig.14 Shows Fig.13 A magnified view of a selected location in ;

[0034] Fig.15 Shows Fig.13 Rear view of.

[0035] The above drawings include the following reference numerals:

[0036] 10. Main beam structure; 11. Cross beam; 111. Support beam; 12. Optical lens; 13. Clamp assembly; 131. Adjustment member; 132. Transfer structure; 133. Ring clamp; 1331. Adjustment protrusion; 14. Circuit board; 15. Light projection module; 16. Mounting seat;

[0037] 20. Shell; 201. Accommodating cavity; 202. Position limiting cavity; 203. Mounting protrusion; 204. Air inlet; 205. Air outlet; 21. Left shell; 22. Right shell; 23. Front side screen; 24. Base; 25. Top shell; 26. Rear shell;

[0038] 30. Mainboard structure; 31. Mainboard body; 32. First fixing frame; 321. First frame body; 322. First transfer protrusion; 323. Third transfer protrusion; 33. Second fixing frame; 331. Second frame body; 332. Second transfer protrusion; 333. Fourth transfer protrusion; 34. Chip;

[0039] 40. fan assembly; 401. air induction channel; 41. fan fixing seat; 42. axial flow fan;

[0040] 50, overlapping piece; 501, air guide channel; 502, overlapping side; 503, installation side;

[0041] 60. Symmetry plane;

[0042] 70. first heat dissipation structure; 71. heat dissipation fins; 72. first heat conducting seat;

[0043] 80. Second heat dissipation structure; 81. Second heat-conducting seat; 82. Strip-shaped protrusion. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part 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 is by no means intended to limit 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 creative work are within the scope of protection of the present invention.

[0045] like Figures 1 to 15As shown, an embodiment of the present invention provides a scanner, which includes a shell 20, a front side screen 23 arranged on the shell 20, and a main beam structure 10 and a main board structure 30 arranged in the shell 20, the main beam structure 10 and the main board structure 30 are arranged at intervals, the main board structure 30 includes a main board body 31 and a fixed frame group, the main board body 31 is connected to the shell 20 through the fixed frame group, and there are multiple adapters between the fixed frame group and the shell 20 and between the fixed frame group and the front side screen 23, the multiple adapters are distributed at different positions of the shell 20 and the front side screen 23, and the multiple adapters have multiple different installation directions for connecting the fixed frame group and the shell 20, and the fixed frame group and the front side screen 23.

[0046] In this embodiment, the main board structure 30 and the main beam structure 10 are spaced apart to avoid the situation where the main board structure 30 is directly installed on the main beam structure 10 and the heat generated by the main board structure 30 easily causes the main beam structure 10 to deform and affect the accuracy of the optical components installed on the main beam structure 10, thereby ensuring the optical accuracy and use effect of the scanner. Furthermore, the main board body 31 is fixedly connected to the housing 20 and the front side screen 23 through a fixed frame group and multiple adapters, and the multiple adapters have different installation directions, which is conducive to ensuring the reliability and stability of the installation of the main board structure 30, thereby ensuring the reliability of the scanner.

[0047] like Figures 1 to 7 As shown, the shell 20 includes a left shell 21 and a right shell 22 that are symmetrically installed, and the fixing frame group includes a first fixing frame 32 and a second fixing frame 33. The first fixing frame 32 and the second fixing frame 33 are fixedly arranged on the front and rear sides of the main body 31. The first fixing frame 32 is connected to at least one of the left shell 21 and the right shell 22 through at least one adapter. When the first fixing frame 32 is connected to one of the left shell 21 and the right shell 22, the second fixing frame 33 is connected to at least the other of the left shell 21 and the right shell 22 through at least one adapter.

[0048] In this embodiment, the first fixing frame 32 is connected to the left shell 21 and the right shell 22 through two adapters, and the second fixing frame 33 is connected to the left shell 21 and the right shell 22 through two adapters. The first fixing frame 32 and the second fixing frame 33 are respectively arranged on the front and rear sides of the main board body 31, which is conducive to improving the stability and reliability of fixing the main board body 31 and ensuring the reliable installation of the main board body 31.

[0049] It is understandable that in other embodiments not shown in the figures, the first fixing bracket 32 ​​can be connected to the left shell 21 through an adapter, and the second fixing bracket 33 can be connected to the right shell 22 through an adapter. The installation method is not limited to the above-mentioned embodiment and will not be listed here one by one.

[0050] like Figures 1 to 3 as well as Figure 5 As shown, the left shell 21 and the right shell 22 are connected to form a front opening, the front screen 23 is arranged at the front opening, the first fixing frame 32 is arranged on the side of the main board body 31 facing the front screen 23, and the first fixing frame 32 is connected to the front screen 23 through at least one adapter.

[0051] In this embodiment, the first fixing frame 32 is arranged on the front side of the main board body 31 (i.e., the side facing the front side screen 23), and the first fixing frame 32 is connected to the front side screen 23 through two adapters. This arrangement facilitates the limited installation of the front side screen 23, and at the same time, through the connection between the front side screen 23 and the first fixing frame 32, the reliability and stability of the installation of the main board structure 30 are further improved, and it is also conducive to improving the reliability of the installation of the front side screen 23.

[0052] Among them, the adapter in this embodiment is a bolt assembly, and the fixed frame group is fixedly connected to the main board body 31 and the shell 20 through multiple bolt assemblies. This arrangement facilitates the connection between the fixed frame group and the main board body 31 and the fixed frame group and the shell 20, and the operation is simple and the connection is reliable. At this time, the axial direction of the bolt assembly is the installation direction. It can be understood that the bolt assembly includes a bolt member and may also include a nut member according to actual conditions. The adapter is not limited to the bolt assembly in this application, and examples are not given one by one here.

[0053] like Figure 6 and Figure 7 As shown, the scanner has a vertically arranged symmetry plane 60 which divides at least the shell 20 and the fixed frame group into two symmetrical parts, the main board 31 and the symmetry plane 60 are perpendicular to each other, and the fixed frame group and the shell 20 are connected by at least three groups of bolt assemblies with different installation directions. The first group of bolt assemblies is a first bolt group with an installation direction perpendicular to the symmetry plane 60, the second group of bolt assemblies is a second bolt group with an installation direction parallel to the symmetry plane 60 and the main board 31, and the third group of bolt assemblies is a third bolt group with an installation direction perpendicular to the front side screen 23.

[0054] In this embodiment, the main board body 31 is fixed by multiple groups of bolt assemblies with different installation directions, further ensuring the reliability and stability of the fixed installation of the main board body 31, and avoiding the situation that the bolt assembly installation direction is single, the installation positions are too concentrated, resulting in the uninstalled position being prone to movement, or the installed position being prone to damage due to concentrated force. It can be understood that each group of bolt assemblies includes at least two bolt assemblies symmetrically distributed on both sides of the symmetry plane 60, so as to further improve the stability of the transfer installation of the main board body 31.

[0055] Among them, Figures 1 to 7As shown, the shell 20 has a accommodating cavity 201 and a limiting cavity 202 connected to the bottom of the accommodating cavity 201, the radial dimension of the accommodating cavity 201 is larger than the radial dimension of the limiting cavity 202, the main beam structure 10 can be inserted into the accommodating cavity 201 and the limiting cavity 202, the outer peripheral shape of the main beam structure 10 is adapted to the shape of the accommodating cavity 201 and the limiting cavity 202, the main board structure 30 is arranged in the accommodating cavity 201 and its shape is adapted to the shape of the accommodating cavity 201, and a plurality of mounting protrusions 203 are provided in the accommodating cavity 201 and the limiting cavity 202, some of the mounting protrusions 203 are connected to the main board structure 30 through adapters, and other parts of the mounting protrusions 203 are used to connect to the main beam structure 10.

[0056] In this embodiment, the main board structure 30 is mainly arranged in the accommodating cavity 201, and is fixedly connected to different inner walls of the accommodating cavity 201 through multiple sets of bolt assemblies, while the main beam structure 10 is arranged in the accommodating cavity 201 and the limiting cavity 202, and its shape is adapted to the shapes of the two cavities and is fixedly arranged on different positions of the inner walls of the accommodating cavity 201 and / or the limiting cavity 202 through multiple sets of bolt assemblies. Furthermore, by setting the mounting protrusion 203, it is helpful to shorten the connection distance between the shell 20 and the main board structure 30 and the main beam structure 10, which is convenient for the shell 20 to limit and transfer the main board structure 30 and the main beam structure 10, and improves the reliability and convenience of the installation of the main board structure 30 and the main beam structure 10. Among them, the bottom of the accommodating cavity 201 is provided with a mounting protrusion 203 for supporting and cooperating with the bolt assembly to install the main board structure 30.

[0057] like Figure 2 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 As shown, the first fixing frame 32 is arranged in the lower area of ​​the side of the main board body 31 facing the front side screen 23, the first fixing frame 32 includes a first frame body 321 extending in a direction perpendicular to the symmetry plane 60 and a plurality of first transfer protrusions 322 symmetrically distributed at both ends of the first frame body 321, the plurality of first transfer protrusions 322 are arranged on the side of the first frame body 321 facing the front side screen 23, the plurality of first transfer protrusions 322 are arranged perpendicular to the front side screen 23 and are connected to the front side screen 23 through a third bolt group, the shell 20 includes a left shell 21 and a right shell 22 symmetrically installed, a symmetry plane 60 is formed between the left shell 21 and the right shell 22, and the first frame body 321 is respectively connected to the left shell 21 and the right shell 22 through a second bolt group.

[0058] In this embodiment, there are two first transfer protrusions 322, and correspondingly, the third bolt group includes two bolt assemblies. The extension direction of the two first transfer protrusions 322 is perpendicular to the front side screen 23. The first transfer protrusions 322 have threaded holes on one side facing the front side screen 23. The front side screen 23 has matching holes coaxial with the threaded holes at the positions corresponding to the two first transfer protrusions 322. The bolt assemblies of the third bolt group are installed from the outside of the housing 20 to the inside, pass through the matching holes and are threadedly connected with the threaded holes, so as to realize the fixed connection between the front side screen 23 and the first frame 321 through the third bolt group. On the other hand, Figure 3 As shown, a mounting protrusion 203 with a threaded hole is vertically arranged at the bottom of the area of ​​the right shell 22 used to form the accommodating cavity 201. It can be seen from the symmetrical arrangement of the left shell 21 and the right shell 22 that a mounting protrusion 203 with a threaded hole is also symmetrically and vertically arranged at the bottom of the area of ​​the left shell 21 used to form the accommodating cavity 201. The first frame 321 is arranged on the two mounting protrusions 203 and matching holes are arranged at the positions corresponding to the two mounting protrusions 203. Correspondingly, the second bolt group includes two bolt assemblies. The bolt assemblies of the second bolt group are installed from the inside of the shell 20 to the outside, pass through the matching holes on the first frame 321 and are threadedly connected with the threaded holes on the mounting protrusion 203, so as to realize the fixed connection between the first frame 321 and the left shell 21 and the right shell 22 through the second bolt group. In this way, the reliability of the transition between the left shell 21 or the right shell 22 and the first frame 321 is improved by setting the first transition protrusion 322.

[0059] Specifically, the second fixing frame 33 in the present embodiment is arranged in the upper area of ​​the side of the main board body 31 away from the front side screen 23, the second fixing frame 33 includes a second frame body 331 extending in a direction perpendicular to the symmetry plane 60 and a plurality of second transfer protrusions 332 symmetrically distributed at both ends of the second frame body 331, the shell 20 includes a symmetrically installed left shell 21 and a right shell 22, and a symmetry plane 60 is formed between the left shell 21 and the right shell 22, and a plurality of second transfer protrusions 332 are arranged on the top of the second frame body 331 and are respectively connected to the left shell 21 and the right shell 22 through a first bolt group.

[0060] In this embodiment, there are two second transfer protrusions 332, and correspondingly, the first bolt group includes two bolt assemblies, such as Figure 3As shown, the side walls of the left shell 21 and the right shell 22 used to form the accommodating cavity 201 are both provided with mounting protrusions 203 extending in the horizontal direction, and the mounting protrusions 203 have threaded holes, and the two second transfer protrusions 332 on the second fixing frame 33 correspond to the two mounting protrusions 203 respectively, and the second transfer protrusions 332 have matching holes corresponding to the threaded holes, and the bolt assembly of the first bolt group is installed from the inside of the housing 20 to the outside, passes through the matching holes of the second transfer protrusions 332 and is threadedly connected with the threaded holes of the mounting protrusions 203, so as to realize the fixed connection between the second frame 331 and the left shell 21 and the right shell 22 through the first bolt group. In this way, the reliability of the transfer between the left shell 21 or the right shell 22 and the second frame 331 is improved by providing the second transfer protrusions 332.

[0061] Further, the first fixing frame 32 includes a first frame body 321 and a plurality of third transfer protrusions 323 symmetrically arranged on both sides of the symmetry plane 60, the third transfer protrusion 323 is arranged on the side of the first frame body 321 facing the main board body 31, the second fixing frame 33 includes a second frame body 331 and a plurality of fourth transfer protrusions 333 symmetrically arranged on both sides of the symmetry plane 60, the fourth transfer protrusion 333 is arranged on the side of the second frame body 331 facing the main board body 31, the third transfer protrusion 323 and the fourth transfer protrusion 333 are both perpendicular to the main board body 31 and fixedly connected to the main board body 31 through a bolt assembly, the first frame body 321 is spaced from the main board body 31 through the third transfer protrusion 323, and the second frame body 331 is spaced from the main board body 31 through the fourth transfer protrusion 333. Such a configuration is conducive to ensuring the reliability and convenience of the connection between the first frame body 321, the second frame body 331 and the main board body 31.

[0062] In this embodiment, there are two third transfer protrusions 323 and fourth transfer protrusions 333, and both the third transfer protrusions 323 and fourth transfer protrusions 333 have threaded holes. The main board body 31 has matching holes at positions corresponding to the third transfer protrusions 323 and fourth transfer protrusions 333. The bolt assembly for connecting the third transfer protrusion 323 or the fourth transfer protrusion 333 with the main board body 31 passes through the matching holes of the main board body 31 from the opposite side of the main board body 31 and is threadedly connected with the threaded holes on the third transfer protrusion 323 or the fourth transfer protrusion 333, so that the first frame body 321, the second frame body 331 and the main board body 31 are connected by the bolt assembly. In this embodiment, the third transfer protrusion 323 and the fourth transfer protrusion 333 are both arranged vertically to the main board body 31.

[0063] like Figure 2 as well as Figures 6 to 12As shown, a chip 34 is arranged on the main board body 31, and the scanner also includes a first heat dissipation structure 70 and a fan assembly 40. The first heat dissipation structure 70 is correspondingly arranged at the chip 34 of the main board structure 30. The right shell 22 and the left shell 21 of the shell 20 respectively have an air inlet 204 and an air outlet 205. The direction of the air inlet 204 toward the air outlet 205 is the heat dissipation airflow direction. In the heat dissipation airflow direction, the area formed by the edge connection line of the air inlet 204 and the air outlet 205 is in the shell 20, and the first heat dissipation structure 70 is at least partially located in the maximum area formed by the edge connection line of the air inlet 204 and the air outlet 205.

[0064] In this embodiment, the heat generated at the chip 34 of the mainboard structure 30 will first be transferred from the chip 34 to the first heat dissipation structure 70, and then the heat dissipation of the first heat dissipation structure 70 will be realized through the heat dissipation airflow, and the double heat dissipation of the chip 34 will be realized through the heat dissipation airflow and the first heat dissipation structure 70, thereby improving the heat dissipation effect of the chip 34 of the mainboard structure 30. Furthermore, the heat dissipation airflow entering from the air inlet 204 and / or exiting from the air outlet 205 is formed by the fan assembly 40, which promotes the flow of fluid in the housing 20 and ensures the reliability and continuity of heat dissipation. On the other hand, by limiting the position of the first heat dissipation structure 70, the heat dissipation airflow between the air inlet 204 and the air outlet 205 must flow through the first heat dissipation structure 70, so as to improve the heat dissipation effect of the first heat dissipation structure 70 and the mainboard structure 30.

[0065] Preferably, the air inlet 204 and the air outlet 205 are both grille openings.

[0066] Specifically, the number, size, and location of the chips 34, as well as the number, size, and number of corresponding chips 34 of the first heat dissipation structures 70, can be adjusted according to actual conditions to ensure the reliability of heat dissipation of each group of first heat dissipation structures 70 and chips 34 by the heat dissipation airflow, and the reliability and stability of heat dissipation of the chips 34 covered by each first heat dissipation structure 70. Figures 6 to 12 As shown, in this embodiment, the mainboard structure 30 has two chips 34 and is correspondingly provided with two first heat dissipation structures 70. The two chips 34 are arranged at intervals along the heat dissipation airflow direction. The two first heat dissipation structures 70 are respectively arranged at the two chips 34, and any one of the first heat dissipation structures 70 is at least partially located in the maximum area formed by the edge connection line of the air inlet 204 and the air outlet 205.

[0067] like Figure 6 , Figure 8 , Fig.11 , Fig.12As shown, the first heat dissipation structure 70 includes a plurality of heat dissipation fins 71, the length directions of the plurality of heat dissipation fins 71 are parallel to the heat dissipation airflow direction, a heat dissipation gap is formed between any two adjacent heat dissipation fins 71, and the first heat dissipation structure 70 is distributed with a plurality of first heat dissipation structures 70 in the heat dissipation airflow direction and the distance between two adjacent first heat dissipation structures 70 is greater than 0. The heat dissipation gaps increase the heat exchange area between the heat dissipation airflow and the first heat dissipation structure 70, and the heat dissipation airflow will be diverted when flowing through the plurality of heat dissipation gaps and exchange heat with the inner wall of each heat dissipation gap it flows through, which is beneficial to improve the heat exchange effect and heat exchange efficiency. It is understandable that the arrangement, quantity, shape, etc. of the heat dissipation fins 71 can be adjusted according to actual conditions, and examples are not given one by one here.

[0068] Preferably, in the direction of the heat dissipation airflow, the projection of the heat dissipation fins 71 of the rear first heat dissipation structure 70 on the plane perpendicular to the heat dissipation airflow direction at least partially overlaps with the projection of the heat dissipation gap of the front first heat dissipation structure 70 on the same plane perpendicular to the heat dissipation airflow direction. This arrangement can further divert the heat dissipation airflow and improve the heat dissipation effect. Specifically, the airflow entering from the air inlet 204 will first pass through the front first heat dissipation structure 70 and be diverted into multiple airflows by the heat dissipation gap. Each diverted airflow continues to flow and passes through the rear first heat dissipation structure 70. Each airflow will be stopped by the multiple heat dissipation fins 71 of the rear first heat dissipation structure 70 and diverted again, slowing down the airflow rate, allowing the gas to diffuse and decelerate, so that it can fully contact and absorb heat, fully perform heat exchange, and indirectly increase the heat dissipation area of ​​the heat dissipation airflow and the two first heat dissipation structures 70, thereby improving the heat dissipation effect.

[0069] In this embodiment, the first heat dissipation structure 70 further includes a first heat-conducting seat 72, one side of the first heat-conducting seat 72 is in contact with the corresponding chip 34, and a plurality of heat dissipation fins 71 are arranged on the other side of the first heat-conducting seat 72. The mainboard structure 30 further includes a mainboard body 31 on which the chip 34 is mounted, and the first heat-conducting seat 72 is connected to the mainboard body 31 through a bolt assembly and covers the corresponding chip 34. In this embodiment, the mainboard body 31 includes a circuit board and an adapter plate for transferring the first heat dissipation structure 70, and the adapter plate is mounted on the circuit board through an adapter and the like and is parallel to and spaced from the circuit board. In the heat dissipation airflow direction, the chip 34 located in the front is fixedly mounted on the circuit board, and the chip 34 located in the rear is fixedly mounted on the adapter plate.

[0070] Preferably, in this embodiment, the air inlet 204 and the air outlet 205 are symmetrically arranged on both sides of the housing 20 and are both inclined relative to the heat dissipation airflow direction. Compared with the case where the air inlet 204 and the air outlet 205 are both perpendicular to the heat dissipation airflow direction, this arrangement provides a larger area for airflow circulation, which is conducive to improving the heat dissipation effect.

[0071] Specifically, the heat dissipation airflow direction is perpendicular to the symmetry plane 60, and the air inlet 204 and the air outlet 205 are both provided with a fan assembly 40, the air inlet 204 and the air outlet 205 are symmetrically arranged on both sides of the symmetry plane 60, and the projections of the two on the symmetry plane 60 overlap and form a first projection plane, the two fan assemblies 40 are symmetrically arranged in the housing 20, and the projections on the symmetry plane 60 overlap and form a second projection plane, and the projection of the first heat dissipation structure 70 on the symmetry plane 60 is the third projection plane, and the overlap area of ​​any two of the first projection plane, the second projection plane and the third projection plane is not 0. This arrangement ensures that the fan assembly 40 can form a stable airflow and that the airflow can stably flow through the first heat dissipation structure 70, thereby ensuring the heat dissipation effect.

[0072] like Figures 8 to 10 As shown, the fan assembly 40 is arranged at the air inlet 204 and / or the air outlet 205 and has an air induction channel 401. An air guide channel 501 is provided between the fan assembly 40 and the corresponding air inlet 204 or air outlet 205 to prevent air flow dispersion. The air induction channel 401 is connected to the air inlet 204 or the air outlet 205 through the air guide channel 501. In this arrangement, the heat dissipation air flow is rectified through the air guide channel 501 and the air induction channel 401, further improving the heat dissipation effect of the first heat dissipation structure 70 and the mainboard structure 30.

[0073] like Figures 8 to 10 As shown, the scanner also includes a lap joint 50, which is arranged between the fan assembly 40 and the air inlet 204 or the air outlet 205 corresponding to the fan assembly 40. The lap joint 50 is an annular member and has a lap joint side 502 and a mounting side 503 arranged oppositely. The lap joint side 502 is adapted to and abuts against the shape of the housing 20 where the air inlet 204 or the air outlet 205 is located, and the mounting side 503 is adapted to and connected to the outer peripheral shape of the fan assembly 40, and an air guide channel 501 is formed inside the lap joint 50. This arrangement can ensure the reliability of the air guide channel 501 formed by the lap joint 50 in guiding the heat dissipation airflow, and avoid the situation where there is a large gap between it and the fan assembly 40 or the air outlet, resulting in the diversion of the heat dissipation airflow, thereby affecting the heat dissipation effect.

[0074] The fan assembly 40 includes a fan fixing seat 41 and an axial fan 42 fixedly mounted on the fan fixing seat 41, the axial direction of the axial fan 42 is parallel to the heat dissipation wind direction, the air induction channel 401 is located in the fan fixing seat 41 and extends along the heat dissipation wind direction and passes through the fan fixing seat 41, the fan fixing seat 41 is fixedly mounted in the housing 20, and the air guide channel 501 is located between the fan fixing seat 41 and the air inlet 204 or the air outlet 205 corresponding to the fan fixing seat 41. This arrangement facilitates the formation of the air induction channel 401, and can ensure the air induction effect of the fan assembly 40 on the heat dissipation wind flow, thereby improving the reliability and stability of the heat dissipation of the first heat dissipation structure 70.

[0075] Optionally, the scanner further includes a second heat dissipation structure 80. The main beam structure 10 is disposed in the housing 20. The second heat dissipation structure 80 is installed at at least one optical device of the main beam structure 10 and is located below the area between the air inlet 204 and the air outlet 205. By providing the second heat dissipation structure 80, heat dissipation of the optical device can be achieved. Combined with the heat exchange of the heat dissipation airflow with the second heat dissipation structure 80 and the optical device, the heat dissipation effect of the optical device can be further improved.

[0076] It is understandable that the number and arrangement of the second heat dissipation structures 80 can be adaptively adjusted according to actual conditions (the number of optical devices, the arrangement position, the degree of heat generation, etc.), and examples are not given here one by one.

[0077] Specifically, the second heat dissipation structure 80 includes a second heat-conducting seat 81 and a plurality of strip-shaped protrusions 82 arranged in parallel on the same side of the second heat-conducting seat 81, and a heat dissipation gap is formed between any two strip-shaped protrusions 82. In this arrangement, the heat exchange area between the heat dissipation airflow and the second heat dissipation structure 80 is increased through the plurality of heat dissipation gaps, and the heat dissipation airflow will be divided when flowing through the plurality of heat dissipation gaps and exchange heat with the inner wall of each heat dissipation gap it flows through, which is conducive to improving the heat exchange effect and heat exchange efficiency.

[0078] like Figures 13 to 15 As shown, the main beam structure 10 includes a cross beam 11 and a plurality of mounting seats 16, the plurality of mounting seats 16 are distributed at different positions of the cross beam 11, and the mounting seats 16 are connected to the housing 20 through a bolt assembly. This arrangement is conducive to ensuring the reliability and stability of the installation of the main beam structure 10.

[0079] Specifically, the installation direction of the bolt assembly between a part of the mounting seat 16 and the housing 20 is a first direction, and the installation direction of the bolt assembly between another part of the mounting seat 16 and the housing 20 is a second direction, the first direction is perpendicular to the symmetry plane 60, and the second direction is parallel to the symmetry plane 60. In this way, the main beam structure 10 can be installed and limited from different directions, ensuring the reliability and stability of the installation of the main beam structure 10.

[0080] Optionally, the main beam structure 10 also includes multiple optical lenses 12, the cross beam 11 is formed by the intersection of at least two support beams 111, and 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, and at least one optical lens 12 on each support beam 111 has a working distance and / or range different from that of the optical lenses 12 on other 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 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. Such an arrangement allows multiple fields of view with different working distances and / or ranges to 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 is beneficial for 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.

[0081] Specifically, the support beam 111 has a mounting hole for mounting the optical lens 12, one end of the optical lens 12 is inserted into the mounting hole, and the main beam structure 10 also includes a clamp assembly 13 arranged on the support beam 111, and a clamp assembly 13 is correspondingly arranged at any mounting hole, and the clamp assembly 13 can adjust the tightness of the optical lens 12 protruding from the mounting hole. 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 it. Among them, the mounting hole has an internal thread, and one end of the optical lens 12 extending into the mounting hole has an external thread, and the optical lens 12 is threadedly installed in the mounting hole. This arrangement facilitates the pre-installation of the optical lens 12, is easy to adjust, and has reliable and stable connection, low cost and easy maintenance.

[0082] Preferably, the clamp assembly 13 includes an adjustment member 131, a transfer structure 132 and an annular clamp 133 with an opening. The transfer structure 132 is arranged on the other side opposite to the opening of the annular clamp 133. The transfer structure 132 is used to connect and space the annular clamp 133 and the support beam 111. The adjustment 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 the optical lens 12. In this way, the adjustment of the opening of the annular clamp 133 by the adjustment member 131 can realize the tightening adjustment of the annular clamp 133, which improves the convenience of adjustment. At the same time, the transfer installation of the annular clamp 133 is realized by the transfer structure 132, so that it can be suspended at the corresponding mounting hole, which is conducive to ensuring the reliable clamping of the optical lens 12 by the annular clamp 133, realizing the clamping support and stabilization of the optical lens 12, and avoiding the situation that the optical lens 12 is too long in the mounting hole and is easy to shake or be damaged. It can be understood that in order to further improve the convenience of adjustment, the adjustment member 131 adopts a bolt member, and the two ends of the opening of the annular clamp 133 are provided with adjustment protrusions 1331, one of the adjustment protrusions 1331 has an internal threaded hole, and the other adjustment protrusion 1331 has a corresponding through hole. By rotating the bolt member, the two adjustment protrusions 1331 can be adjusted to move closer or farther from each other, thereby achieving the tightness adjustment of the annular clamp 133.

[0083] Preferably, the annular clamp 133, the adapter structure 132 and the support beam 111 of the clamp assembly are integrally arranged. In this embodiment, at least one optical lens 12 forms 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 thereby.

[0084] 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 is convenient for switching the field of view and improves applicability. The adapter structure 132 is an arc-shaped seat body integrally formed between the annular clamp 133 and the support beam 111, which is conducive to the processing of the adapter structure 132 and the annular clamp 133 and improves the convenience of processing. At the same time, it is conducive to ensuring the coaxiality of the annular clamp 133 and the mounting hole, thereby improving the reliability and stability of the clamp assembly 13 and the mounting hole for the limited installation of the optical lens 12.

[0085] Furthermore, the cross beam 11 is a cross beam formed by the intersection of two mutually perpendicular support beams 111 (a cross beam and a longitudinal beam), and a plurality of mounting seats 16 are distributed on the periphery of the longitudinal beam along the extension direction of the longitudinal beam, and a plurality of mounting seats 16 are distributed at least on the upper and lower sides of the cross beam. This arrangement is conducive to ensuring the reliability of the distribution of the cross beam 11 by the plurality of mounting seats 16, and avoiding the situation where the plurality of mounting seats 16 are too concentrated on the same side, resulting in poor switching strength on the other side.

[0086] 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.

[0087] The area formed by the intersection of the cross beam and the longitudinal beam is the intersection area, and the maximum area formed by the connection line of the projections of the multiple mounting seats 16 on the plane where the intersection area is located covers the intersection area. This arrangement ensures that the mounting seats 16 are arranged outside the intersection area, ensuring the stability of the installation in the intersection area, and the intersection area is the overlapping area of ​​the cross beam and the longitudinal beam, ensuring the installation stability of the intersection area, that is, further improving the reliability and stability of the transfer of the multiple mounting seats 16 to the main beam structure 10 and the shell 20. It can be understood that the projection direction in this embodiment is the first direction.

[0088] Optionally, the main beam structure 10 further includes a circuit board 14 and a light projection module 15. The light projection module 15 is distributed at different positions of the cross beam 11. The circuit board 14 is arranged at 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 arranged 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. In this arrangement, through the cooperation of the circuit board 14, the light projection module 15 and the optical lens 12, scanning, shooting, imaging, etc. of multiple fields of view (i.e., multiple scanning distances and ranges) of the scanned object can be realized. The axis of the light projection module 15 and the corresponding optical lens 12 intersect at one point to ensure the reliability of scanning, shooting, imaging, etc.

[0089] In this embodiment, the shell 20 also includes a top shell 25, a base 24 and a rear shell 26. The top shell 25, the rear shell 26, the base 24 and the front side screen 23 are respectively used to block the multiple openings after the left shell 21 and the right shell 22 are connected to form a cavity of a quasi-closed environment for installing the main board structure 30, the main beam structure 10, the lap joint 50, the second heat dissipation structure 80, the first heat dissipation structure 70 and the fan assembly 40, thereby ensuring the circulation effect and heat exchange effect of the heat dissipation airflow inside the cavity of the shell 20.

[0090] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0091] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​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 accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0092] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, 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 devices or elements 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 contours of each component itself.

[0093] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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.

[0094] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scanner, characterized in that: The scanner comprises a shell (20), a front side screen (23) arranged on the shell (20), and a main beam structure (10) and a main board structure (30) arranged in the shell (20), wherein the main beam structure (10) and the main board structure (30) are arranged at intervals, and the main board structure (30) comprises a main board body (31) and a fixing frame group, wherein the main board body (31) is connected to the shell (20) through the fixing frame group, and a plurality of adapters are provided between the fixing frame group and the shell (20) and between the fixing frame group and the front side screen (23), wherein the plurality of adapters are distributed at different positions of the shell (20) and the front side screen (23), and the plurality of adapters have a plurality of different installation directions for connecting the fixing frame group and the shell (20), and the fixing frame group and the front side screen (23).

2. The scanner according to claim 1, characterized in that The housing (20) comprises a left side housing (21) and a right side housing (22) which are symmetrically installed. The fixing frame group comprises a first fixing frame (32) and a second fixing frame (33). The first fixing frame (32) and the second fixing frame (33) are fixedly arranged on the front and rear sides of the main body (31). The first fixing frame (32) is connected to at least one of the left side housing (21) and the right side housing (22) through at least one adapter. When the first fixing frame (32) is connected to one of the left side housing (21) and the right side housing (22), the second fixing frame (33) is connected to at least the other of the left side housing (21) and the right side housing (22) through at least one adapter.

3. The scanner according to claim 2, characterized in that: The left shell (21) and the right shell (22) are connected to form a front opening, the front screen (23) is arranged at the front opening, the first fixing frame (32) is arranged on a side of the main body (31) facing the front screen (23), and the first fixing frame (32) is connected to the front screen (23) via at least one adapter.

4. The scanner according to claim 1, characterized in that: The adapter is a bolt assembly, and the fixing frame assembly is fixedly connected to the main board (31), the housing (20), and the front side screen (23) via a plurality of bolt assemblies.

5. The scanner according to claim 4, characterized in that: The scanner has a vertically arranged symmetry plane (60) which divides at least the shell (20) and the fixed frame group into two symmetrical parts, the main board (31) and the symmetry plane (60) are perpendicular to each other, the fixed frame group and the shell (20) are connected by at least two groups of the bolt assemblies, and the fixed frame group and the front side screen (23) are connected by at least one group of the bolt assemblies, the first group of the bolt assemblies is a first bolt group whose installation direction is perpendicular to the symmetry plane (60), the second group of the bolt assemblies is a second bolt group whose installation direction is parallel to the symmetry plane (60) and the main board (31), and the third group of the bolt assemblies is a third bolt group whose installation direction is perpendicular to the front side screen (23).

6. The scanner according to claim 5, characterized in that: The fixing frame assembly comprises a first fixing frame (32), The first fixing frame (32) is arranged in a lower area of ​​a side of the main body (31) facing the front side screen (23), the first fixing frame (32) comprises a first frame body (321) whose extension direction is perpendicular to the symmetry plane (60) and a plurality of first transfer protrusions (322) symmetrically distributed at both ends of the first frame body (321), the plurality of first transfer protrusions (322) are arranged on a side of the first frame body (321) facing the front side screen (23), the plurality of first transfer protrusions (322) are arranged perpendicular to the front side screen (23) and are connected to the front side screen (23) through the third bolt group, the shell (20) comprises a left shell (21) and a right shell (22) which are symmetrically installed, the symmetry plane (60) is formed between the left shell (21) and the right shell (22), and the first frame body (321) is respectively connected to the left shell (21) and the right shell (22) through the second bolt group.

7. The scanner according to claim 5, characterized in that: The fixing frame group includes a second fixing frame (33), the second fixing frame (33) is arranged in an upper area of ​​a side of the main body (31) away from the front side screen (23), the second fixing frame (33) includes a second frame body (331) whose extension direction is perpendicular to the symmetry plane (60) and a plurality of second transfer protrusions (332) symmetrically distributed at both ends of the second frame body (331), the shell (20) includes a left shell (21) and a right shell (22) symmetrically installed, the symmetry plane (60) is formed between the left shell (21) and the right shell (22), and the plurality of second transfer protrusions (332) are arranged on the top of the second frame body (331) and are respectively connected to the left shell (21) and the right shell (22) through the first bolt group.

8. The scanner according to claim 5, characterized in that: The fixing frame group comprises a first fixing frame (32) and a second fixing frame (33) arranged on the front and rear sides of the main board body (31); the first fixing frame (32) comprises a first frame body (321) and a plurality of third transfer protrusions (323) symmetrically arranged on both sides of the symmetry plane (60); the third transfer protrusions (323) are arranged on a side of the first frame body (321) facing the main board body (31); the second fixing frame (33) comprises a second frame body (331) and a plurality of fourth transfer protrusions symmetrically arranged on both sides of the symmetry plane (60); (333), the fourth transfer protrusion (333) is arranged on the side of the second frame (331) facing the main board (31), the third transfer protrusion (323) and the fourth transfer protrusion (333) are both perpendicular to the main board (31) and fixedly connected to the main board (31) through the bolt assembly, the first frame (321) is separated from the main board (31) by the third transfer protrusion (323), and the second frame (331) is separated from the main board (31) by the fourth transfer protrusion (333).

9. The scanner according to claim 1, characterized in that: The main beam structure (10) comprises a cross beam (11) and a plurality of mounting seats (16), wherein the plurality of mounting seats (16) are distributed at different positions of the cross beam (11), and the mounting seats (16) are connected to the housing (20) via a bolt assembly.

10. The scanner according to claim 9, characterized in that The scanner has a vertically arranged symmetry plane (60) which divides the shell (20) into at least two symmetrical parts. The installation direction of the bolt assembly between a part of the mounting seat (16) and the shell (20) is a first direction, and the installation direction of the bolt assembly between another part of the mounting seat (16) and the shell (20) is a second direction. The first direction is perpendicular to the symmetry plane (60), and the second direction is parallel to the symmetry plane (60).

11. The scanner according to claim 9, characterized in that: The cross beam (11) is formed by the intersection of a cross beam and a longitudinal beam, and a plurality of mounting seats (16) are distributed on the periphery of the longitudinal beam along the extension direction of the longitudinal beam, and the plurality of mounting seats (16) are distributed at least on the upper and lower sides of the cross beam.

12. The scanner according to claim 11, characterized in that The area formed by the intersection of the cross beam and the longitudinal beam is the intersection area, and the maximum area formed by the connecting line of the projections of a plurality of the mounting seats (16) on the plane where the intersection area is located covers the intersection area.

13. The scanner according to claim 1, characterized in that The shell (20) comprises a accommodating cavity (201) and a limiting cavity (202) connected to the lower side of the accommodating cavity (201); the radial dimension of the accommodating cavity (201) is larger than the radial dimension of the limiting cavity (202); the main beam structure (10) is arranged in the accommodating cavity (201) and the limiting cavity (202); the outer peripheral shape of the main beam structure (10) is adapted to the shapes of the accommodating cavity (201) and the limiting cavity (202); the main board structure (30) is arranged in the accommodating cavity (201) and its shape is adapted to the shapes of the accommodating cavity (201); a plurality of mounting protrusions (203) are provided in the accommodating cavity (201) and the limiting cavity (202); part of the mounting protrusions (203) are connected to the main board structure (30) through the adapter, and another part of the mounting protrusions (203) are used to connect to the main beam structure (10).

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