Mounting structure, add-on module assembly, three-dimensional scanner and three-dimensional scanning system

Abstract

The present application relates to the technical field of mechanical connection, in particular to a mounting structure, an additional module assembly, a three-dimensional scanner and a three-dimensional scanning system, the mounting structure comprises a locking handle and a fixed seat capable of relative rotation, the locking handle is rotatably installed on one of the additional module and the scanner main body, the fixed seat is fixedly installed on the other, the locking handle comprises an insertion part and a handle extending in the vertical direction of the additional module to the scanner main body, the handle can drive the locking handle to rotate, the insertion part can be inserted into the fixed seat and locked with the fixed seat relative to the rotation of the locking handle, in the mounting structure of the additional module, the handle extends from the insertion part, pushing the handle can make the locking handle rotate, and then the locking handle is locked with the fixed seat, so that external auxiliary tools can be avoided, and the mounting can be directly completed through the handle, and the mounting process is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical connection, in particular to an installation structure, an additional module assembly, a three-dimensional scanner and a three-dimensional scanning system. BACKGROUND

[0002] With the development and application of three-dimensional scanning technology, the occasions suitable for three-dimensional scanners are also increasing. The existing three-dimensional scanners can basically meet the scanning needs of most occasions, but for some special needs, such as scanning tasks in harsh environments, it is generally necessary to increase additional modules suitable for such scanning tasks to expand the functions of the three-dimensional scanner. Unlike the mechanical connection between two ordinary parts, the connection reliability and stability of the additional module on the three-dimensional scanner have special requirements. The invention patent with the authorization announcement number CN207962033U discloses a fastening structure, a collection device and a 3D scanning device, wherein in order to realize the fastening connection between the auxiliary collection device and the 3D scanner, a center column and a threaded sleeve sleeved outside the center column and capable of rotating relative to the center column are arranged on the auxiliary collection device, and the position of the auxiliary collection device on the 3D scanner is fixed through the cooperation of the two parts.

[0003] The above form can realize the installation and fixation of the auxiliary collection device, but the auxiliary collection device is close to the 3D scanner, and only a small external tool can be inserted between the two to rotate the threaded sleeve, resulting in inconvenience in installation and adjustment of the auxiliary collection device. SUMMARY

[0004] Therefore, it is necessary to provide an installation structure, an additional module assembly, a three-dimensional scanner and a three-dimensional scanning system for the above problems, which can be conveniently installed on the three-dimensional scanner without external auxiliary tools, and the positioning is reliable after installation.

[0005] The first aspect of the present application provides an installation structure of an additional module for connecting a scanner main body and an additional module, which comprises a lock handle capable of relative rotation and a fixed seat, the lock handle is rotatably installed on one of the additional module and the scanner main body, and the fixed seat is fixedly installed on the other one, the lock handle comprises a handle and an insertion part, the handle is extended in the vertical direction of the additional module to the scanner main body, and the handle can drive the lock handle to rotate, and the insertion part can be inserted into the fixed seat and locked with the fixed seat relative to the rotation of the lock handle.

[0006] In one embodiment, the mounting structure further includes a positioning block, and the fixing seat has a positioning hole. During the process of inserting the locking handle into the fixing seat, the positioning block and the locking handle extend into the positioning hole in sequence, and an anti-rotation structure for limiting the circumferential rotation of the positioning block is formed between the positioning hole and the positioning block.

[0007] In one embodiment, the anti-rotation structure includes a limiting hole segment formed on the positioning hole, and a stop surface disposed on the positioning block and capable of abutting against the inner sidewall of the limiting hole segment.

[0008] In one embodiment, the insertion part includes a sleeve that is fitted onto the additional module or the scanner body, and a buckle disposed on the outer peripheral surface of the sleeve near the fixed base. The fixed base is provided with a locking groove that allows the buckle to be inserted and rotated to a locking position.

[0009] In one embodiment, the locking handle is further provided with a rotation limit block for limiting the relative rotation angle between the locking handle and the fixed base.

[0010] A second aspect of the present invention provides an additional module assembly for use with a scanner body having a mounting base. The additional module assembly includes an additional module, which, together with the mounting base, forms the aforementioned mounting structure for the additional module.

[0011] The additional module assembly includes an additional module with a mounting base for use with the scanner body. The mounting base and the scanner body can form the aforementioned mounting structure for the additional module.

[0012] In one embodiment, the additional module is equipped with an interface device that can be plugged into the scanner body during the insertion of the insertion part into the fixing base, and electrically and / or communicatively connects the additional module to the scanner body.

[0013] In one embodiment, the insertion portion includes a sleeve fitted onto the additional module, and a pressure block fixed to the interface device is also embedded in the sleeve. A portion of the outer peripheral wall of the pressure block is fitted onto the inner side wall of the sleeve to define the rotation axis of the locking handle.

[0014] In one embodiment, the interface device includes a mounting end fixedly connected to the pressure block, and an interface end extending from the mounting end and passing through the sleeve. The additional module is also fixedly provided with a positioning block, on which a positioning groove is formed to allow the interface end to pass through and abut against the side wall of the interface end.

[0015] The third aspect of the present application provides a three-dimensional scanner, which comprises a scanner main body, wherein the fixing seat is arranged on the scanner main body, and the fixing seat can cooperate with the additional module to form the mounting structure of the additional module.

[0016] The three-dimensional scanner comprises a scanner main body, which is used in cooperation with an additional module, wherein the fixing seat is arranged on the additional module, and the scanner main body can cooperate with the fixing seat to form the mounting structure of the additional module.

[0017] The fourth aspect of the present application also provides a three-dimensional scanning system, which comprises a scanner main body and an additional module, and the scanner main body and the additional module are connected and fixed through the mounting structure of the additional module.

[0018] In the mounting structure of the additional module, the handle extends from the insertion part, and the handle can be pushed to rotate the locking handle, so that the locking handle is locked with the fixing seat. This mounting method can avoid external auxiliary tools and can complete the installation directly through the handle, and the installation process is simple. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a mounting structure view of the additional module assembly and the fixing seat, wherein the fixing seat is partially cut open to show the mounting relationship between the locking handle and the fixing seat;

[0020] Figure 2 It is a perspective view of the locking handle;

[0021] Figure 3 It is a perspective view of the positioning block;

[0022] Figure 4 It is a perspective view of the fixing seat;

[0023] Figure 5 It is a perspective view of the three-dimensional scanner, wherein part of the scanner main body and the additional module assembly are cut open to fully show the mounting structure of the two;

[0024] Figure 6 It is an exploded view of the mounting structure of the interface device, the pressing block and the module support;

[0025] Figure 7 It is Figure 6 It is an assembly view of the exploded view;

[0026] Figure 8 It is the embedding relationship between the positioning block and the fixing seat, wherein the abutting limiting relationship between the stop surface on the positioning block and the limiting hole section on the fixing seat is shown.

[0027] REFERENCE SIGNS

[0028] 1. Scanner body; 2. Additional module; 20. Module bracket; 200. Limiting groove; 2000. Limiting wall; 202. Interface mounting part; 2020. Arc-shaped surface; 21. Interface device; 210. Mounting end; 211. Interface end; 3. Locking handle; 30. Insertion part; 300. Sleeve; 301. Buckle; 3010. Fastening guide surface; 3011. Fastening locking surface; 31. Handle; 32. Rotation limiting block; 4. Fixed base; 40. Fastening groove; 400. Pressing surface; 401. Rotation contact surface; 402. Sliding surface; 403. Stop surface; 404. Groove bottom surface; 41. Positioning hole; 410. Limiting hole section; 5. Positioning block; 50. Centering part; 51. Mounting guide surface; 52. Positioning groove; 53. Stopping surface; 6. Pressure block. Detailed Implementation

[0029] It should be noted that when a component is said to be "attached" to another component, it can be directly on the other component or it may be in a centered component. When a component is said to be "set" to another component, it can be directly set on the other component or it may also be in a centered component. When a component is said to be "fixed" to another component, it can be directly fixed to the other component or it may also be in a centered component.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figures 1 to 8 As shown, according to an embodiment of the present invention, an installation structure for an additional module is used to connect a scanner body 1 and an additional module 2. The installation structure includes a locking handle 3 and a fixing base 4 that can rotate relative to each other. The fixing base 4 is fixedly installed on one of the scanner body 1 or the additional module 2, and the locking handle 3 is disposed on the other and can rotate relative to the scanner body 1 or the additional module 2 on which it is located. The rotation of the locking handle 3 relative to the fixing base 4 can lock the two together, and the opposite rotation of the locking handle 3 relative to the fixing base 4 can unlock the two.

[0032] refer to Figures 2 to 4As shown in the drawings, the locking handle 3 comprises an insertion part 30 capable of being inserted into the fixing seat 4, and a handle 31 extending in a perpendicular direction from the insertion part 30 in a direction of installation of the additional module 2 to the scanner main body 1, the handle 31 being capable of rotating the locking handle 3 as a whole to lock the locking handle 3 to the fixing seat 4. After the additional module 2 and the scanner main body 1 are installed in place, the distance between the two is close, and the handle 31 extends outward, which can facilitate the user to lock the two by pushing the handle 31. Therefore, the handle 31 preferably extends to a position beyond the outer side of the additional module 2.

[0033] The installation structure further comprises a positioning block 5 fixedly connected to the additional module 2 or the scanner main body 1 to limit the locking handle 3 to a preset installation position in a direction of installation of the additional module 2 to the scanner main body 1. Figure 1 As an example of the embodiment shown in the drawings, the locking handle 3 is rotatably connected to the additional module 2, and in this embodiment, the positioning block 5 is fixed to the additional module 2 in a direction of the rotation axis of the locking handle 3, thereby limiting the position of the locking handle 3 on the additional module 2 in the direction of the rotation axis of the locking handle 3.

[0034] In combination with Figure 3 and Figure 8 As shown in the drawings, the positioning block 5 is provided with a centering part 50 capable of being tightly fixed to the additional module 2, the centering part 50 being capable of playing an auxiliary limiting role to avoid deflection of the positioning block 5 during the process of screwing the positioning block 5 to the additional module 2.

[0035] An installation guide surface 51 is formed on one end of the positioning block 5 close to the fixing seat 4, which can be used to guide the process of blind insertion of the insertion part 30 of the locking handle 3 into the fixing seat 4. The installation guide surface 51 is obliquely arranged, so that the size of one end of the positioning block 5 where the installation guide surface 51 is located is smaller than the size of the other end, thereby playing a certain guiding role when the locking handle 3 is inserted into the fixing seat 4.

[0036] In combination with Figure 3 and Figure 8 As shown in the drawings, the fixing seat 4 is provided with a positioning hole 41, and the insertion part 30 of the locking handle 3 and the positioning block 5 used to connect the locking handle 3 extend into the positioning hole 41 in sequence. Since the installation guide surface 51 is formed on the positioning block 5 and the positioning block 5 extends into the positioning hole 41 before the insertion part 30, the installation guide surface 51 can play a role in guiding the extension of the insertion part 30.

[0037] The positioning hole 41 cooperates with the positioning block 5, and an anti-rotation structure is formed between them to limit the circumferential rotation of the positioning block 5. With this configuration, the positioning block 5 is fixedly connected to the additional module 2. In the formed installation structure, the fixed block 5 can be prevented by the anti-rotation structure, thus preventing the positioning block 5 from rotating relative to the fixed seat 4. This limits the relative rotation of the additional module 2 relative to the fixed seat 4, thereby preventing the scanning angle of the additional module from changing, losing calibration, and affecting the scanning accuracy. In some embodiments, a limiting hole segment 410 is formed on the positioning hole 41 to cooperate with the positioning block 5 to restrict the circumferential rotation of the positioning block 5. In one embodiment shown in the figure, a stop surface 53 is formed on the positioning block 5. The stop surface 53 is configured to abut against a corresponding position on the inner sidewall of the limiting hole segment 410. As the additional module 2 is installed into the scanner body 1, the positioning block 5 gradually extends into the positioning hole 41 and is embedded in the limiting hole segment 410. In this hole segment, the stop surface 53 abuts against the flat inner wall of the limiting hole segment 410, and the outer sidewall of the remaining part of the positioning block 5 fits against the inner sidewall of the limiting hole segment 410, so that the positioning block 5 cannot rotate circumferentially in the limiting hole segment 410. Therefore, after the positioning block 5 is inserted into place, it can limit the relative rotation between the additional module 2 and the scanner body 1, and also limit the axial movement between the additional module 2 and the scanner body 1, so as to keep the relative position of the additional module 2 on the scanner body 1 stable.

[0038] Combination Figure 1 and Figure 2 As shown, the insertion part 30 of the locking handle 3 includes a sleeve 300 that can be fitted onto the additional module 2 or the scanner body 1, and a buckle 301 disposed on the outer peripheral surface of the sleeve 300 near the fixed base 4. The fixed base 4 is provided with a locking groove 40 at a corresponding position, which allows the buckle 301 to be inserted and rotated to the locking position. When the locking handle 3 is fixed onto the fixed base 4, part of the sleeve 300 extends into the hole on the fixed base 4, causing the buckle 301 to fall into the locking groove 40. As the locking handle 3 rotates, the buckle 301 can rotate to the position where the locking groove 40 has a pressing surface 400. At this time, since the pressing surface 400 can press against the buckle 301, the locking handle 3 and the fixed base 4 are locked together.

[0039] like Figure 4As shown in FIG. 4, the buckle slot 40 is provided with a rotating fitting surface 401, a sliding surface 402, a stop surface 403 and a groove bottom surface 404 which can contact the bottom surface of the buckle 301, which are arranged along the insertion direction of the insertion part 30. When the insertion part 30 is inserted into the positioning hole 41, one side surface of the buckle 301 can be fitted or close to the sliding surface 402 until the bottom surface of the buckle 301 contacts the groove bottom surface 404. When the rotating handle 3 is locked, the outer side surface of the buckle 301 can gradually rotate along the rotating fitting surface 401. When the rotating handle 3 rotates through a certain angle, the buckle 301 enters the space below the pressing surface 400 and is pressed against the upper surface by the pressing surface 400. When the buckle 301 contacts the stop surface 403 in the buckle slot 40, the rotating handle 3 is rotated to the position.

[0040] In some embodiments, a plurality of buckles 301 are arranged on the outer circumferential surface of the sleeve 300 along the circumferential direction of the rotating handle 3, and the buckle slots 40 are correspondingly arranged on the fixing seat 4. Figure 2 As shown in FIG. 4, two buckles 301 are arranged on the sleeve 300, and the two buckles 301 are spaced apart by approximately 180°, so as to cooperate with the buckle slots 40 on the fixing seat 4, so that two locking points are uniformly spaced between the rotating handle 3 and the fixing seat 4, thereby more stably locking the rotating handle 3.

[0041] In some embodiments, the buckle 301 has an inclined buckle guiding surface 3010 and a buckle locking surface 3011 which is parallel to the rotating plane of the rotating handle 3. In this way, when the buckle 301 is put into the buckle slot 40 and starts to rotate the rotating handle 3 relative to the fixing seat 4, the buckle guiding surface 3010 first enters the space below the pressing surface 400. Since the buckle guiding surface 3010 is inclined, the buckle 301 is gradually pressed. When the buckle locking surface 3011 of the rotating handle 3 is fitted to the pressing surface 400, the rotating handle 3 is rotated to the position and locked on the fixing seat 4.

[0042] Further, the rotating handle 3 can be further provided with a rotation limiting block 32 for limiting the rotation angle of the rotating handle 3 relative to the fixing seat 4. In some embodiments, the rotation limiting block 32 is protruded from one end of the insertion part 30 away from the fixing seat 4. In this way, Figure 5 As shown in FIG. 6, the rotating handle 3 is arranged on the additional module 2. The rotation limiting block 32 is protruded from one end away from the fixing seat 4 and cooperates with the limiting slot 200 formed on the module support 20 of the additional module 2. When one side surface of the rotation limiting block 32 abuts against one side of the limiting slot 200, the rotating handle 3 can be separated from the fixing seat 4. When the rotating handle 3 is rotated to the other side surface of the rotation limiting block 32 abutting against the other side of the limiting slot 200, the rotating handle 3 cannot be further rotated. At this time, the pressing surface 400 presses against the buckle locking surface 3011.

[0043] In combination Figure 1 and Figure 5 As shown in FIG. 1, the additional module assembly according to an embodiment of the present application comprises an additional module 2 and the mounting structure of any of the above embodiments. In the illustrated embodiment, the locking handle 3 is arranged on the additional module 2, and the fixing seat 4 is fixed to the scanner main body 1 which cooperates with the additional module assembly.

[0044] The additional module 2 is further provided with an interface device 21 which can be plugged to the scanner main body 1 during the process of inserting the insertion portion 30 into the fixing seat 4, and electrically and / or communicatively connects the additional module 2 to the scanner main body 1. In this embodiment, the mounting structure of the present application plays two roles at the same time: (1) maintaining the relative mounting position between the additional module 2 and the scanner main body 1; (2) locking the interface device 21 to maintain the electrical and / or communication connection relationship between the additional module 2 and the scanner main body 1. This embodiment eliminates the connection line between the additional module 2 and the scanner main body 1, and ensures that the electrical and / or communication connection between the two is reliably locked through the mounting structure. The interface device 21 can be arranged as the USB interface device shown in the figure, which can enable the additional module 2 to communicate with the scanner main body 1 and at the same time electrically connect the additional module 2 to the power supply module on the scanner main body 1 when it is plugged into the corresponding socket on the scanner main body 1. It can be understood that the interface device 21 can also be arranged as other structures that can realize electrical and communication connection, such as a Type-c interface device.

[0045] In combination Figure 5 and Figure 6 As shown in FIGS. 1, 2 and 3, in some embodiments, the insertion portion 30 of the locking handle 3 comprises a sleeve 300, and the interface device 21 is fixed with a pressing block 6, part of the outer wall of which is fitted to the inner wall of the sleeve 300, thereby defining the rotation axis of the locking handle 3. Since the interface device 21 needs to be reliably fixed to ensure that the additional module 2 is reliably electrically and / or communicatively connected to the scanner main body 1, the interface device 21 should be able to remain in a reliable position during the process of rotating the locking handle 3. The pressing block 6 is fixed with the interface device 21 and can define the rotation axis of the locking handle 3, so the rotation trajectory of the locking handle 3 relative to the interface device 21 is determined, thereby avoiding touching the interface device 21 during the process of rotating the locking handle 3.

[0046] In combination Figure 3 , Figure 6 and Figure 7As shown, the interface device 21 includes a mounting end 210 fixedly connected to the pressure block 6, and an interface end 211 extending from the mounting end 210 and passing through the sleeve 300 below. A positioning groove 52 is formed on the positioning block 5 fixedly mounted on the additional module 2, and the sidewall of the interface end 211 fits against the inner wall of the positioning groove 52. Figure 3 As shown, the positioning block 5 is provided with a centering part 50, which will not rotate circumferentially relative to the additional module 2. A positioning groove 52 is provided on it to ensure reliable connection between the interface end 211 and the socket on the scanner body 1.

[0047] like Figure 6 and Figure 7 As shown, the additional module 2 includes a module bracket 20 for fixing related components. For example, when the additional module 2 is configured as a camera component, the module bracket 20 supports the camera and related components. An interface mounting portion 202 is provided at the lower end of the module bracket 20. The mounting end 210 of the interface device 21 is fixed to the interface mounting portion 202 for fixed connection with the module bracket 20. The pressure block 6 is fixed to the mounting end 210 and fixedly connected to the interface mounting portion 202. A portion of the outer peripheral wall of the interface mounting portion 202 forms an arc-shaped surface 2020, and a portion of the outer peripheral wall of the pressure block 6 also forms an arc-shaped outer wall, such as... Figure 7 As shown, the arc-shaped surface 2020 and the arc-shaped outer wall of the pressure block 6 together form an approximately cylindrical surface that can fit against the inner circumferential wall of the sleeve 300, thereby guiding the rotation process of the locking handle 3. Furthermore, the sleeve securely limits the pressure block and the interface mounting part to both sides of the interface device, preventing damage to the device circuit caused by repeated plugging and unplugging of the USB plug or by lateral external force.

[0048] A limiting slot 200 is formed on the module bracket 20. This limiting slot 200 is used to cooperate with the rotation limiting block 32 on the locking handle 3 to limit the rotation range of the locking handle 3 relative to the module bracket 20. Specifically, the bottom wall of the outer shell of the auxiliary module 2 has an opening that allows the rotation limiting block 32 to extend into and rotate through a certain angle. The two end faces of the module bracket 20 used to form the limiting slot 200 are formed as limiting wall surfaces 2000. The rotation limiting block 32 can abut against the two limiting wall surfaces 2000 at the starting rotation position and the rotation stop position, respectively.

[0049] The present invention also provides an additional module assembly for use with a scanner body 1 provided with a mounting base 4. The additional module assembly includes an additional module 2, which and the mounting base 4 on the scanner body 1 can form the installation structure described in any of the above embodiments.

[0050] The additional module assembly may also include an additional module 2, which is provided with a mounting base 4, which can be used in conjunction with the scanner body 1 and form the installation structure described in any of the above embodiments.

[0051] The application also provides a three-dimensional scanner, a fixing seat 4 is arranged on the scanner body 1, and the additional module assembly in the above embodiment is fixed on the fixing seat 4. In addition, the fixing seat 4 can also be arranged on the additional module 2, and at this time, the scanner body 1 of the three-dimensional scanner is provided with related parts capable of cooperating with the fixing seat 4 and forming the mounting structure in any of the above embodiments, such as the locking handle 3 and the like.

[0052] The additional module 2 described above can be arranged as a camera module, which is used for three-dimensional scanning in some specific environment, at this time, the scanning result of the additional module 2 needs to be spliced, and therefore, the reliable positioning of the additional module 2 on the scanner body 1 is very important. By using the mounting structure described above or the additional module assembly, the additional module 2 can be reliably positioned on the scanner body 1, and at the same time, the interface device 21 at the electrically connected and / or communication connected position can be reliably fixed. The three-dimensional scanner has good structural stability and simple assembly.

[0053] The application also provides a three-dimensional scanning system, which comprises a scanner body 1 and an additional module 2, and the two are fixed to each other through the mounting structure in the above embodiment.

[0054] The technical features of the above embodiments can be combined in any way, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0055] The above embodiments only express several embodiments of the application, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An mounting structure for an additional module for connecting a scanner body (1) and an additional module (2), characterized in that, The mounting structure includes a locking handle (3) and a fixing base (4) that can rotate relative to each other. The locking handle (3) is rotatably mounted on one of the additional module (2) and the scanner body (1), and the fixing base (4) is fixedly mounted on the other. The locking handle (3) includes an insertion part (30) and a handle (31) that extends vertically outward from the insertion part (30) along the direction from the additional module (2) to the scanner body (1), and the handle (31) extends beyond the outer side of the additional module (2). The handle (31) can drive the locking handle (3) to rotate, and the insertion part (30) can be inserted into the fixed seat (4) and locked with the fixed seat (4) as the locking handle (3) rotates relative to the fixed seat (4); the locking handle (3) is also provided with a rotation limit block (32) for limiting the relative rotation angle between the locking handle (3) and the fixed seat (4). The mounting structure also includes a positioning block (5) fixedly connected to the additional module (2) or the scanner body (1) to restrict the locking handle (3) to a preset mounting position along the direction of the additional module (2) to the scanner body (1); the fixing base (4) is provided with a positioning hole (41), and during the process of the locking handle (3) being inserted into the fixing base (4), the positioning block (5) and the locking handle (3) are sequentially inserted into the positioning hole (41), and an anti-rotation structure for restricting the circumferential rotation of the positioning block (5) is formed between the positioning hole (41) and the positioning block (5); The anti-rotation structure includes a limiting hole section (410) formed on the positioning hole (41) and a stop surface (53) disposed on the positioning block (5) and capable of abutting against the inner sidewall of the limiting hole section (410).

2. The installation structure of the additional module according to claim 1, characterized in that, The insertion part (30) includes a sleeve (300) that is sleeved onto the additional module (2) or the scanner body (1), and a buckle (301) disposed on the outer peripheral surface of the sleeve (300) near the fixed seat (4). The fixed seat (4) is provided with a locking groove (40) that allows the buckle (301) to be inserted and rotated to the locking position.

3. The installation structure of the additional module according to claim 2, characterized in that, The buckle (301) has an inclined fastening guide surface (3010) and a fastening locking surface (3011) parallel to the rotation plane of the locking handle (3), and the buckle groove (40) has a pressing surface (400) that can abut against and fit against the fastening locking surface (3011).

4. An add-on module component, characterized in that, For use with a scanner body (1) equipped with a mounting base (4), the additional module assembly includes an additional module (2), the additional module (2) and the mounting base (4) being able to form an additional module mounting structure as described in any one of claims 1-3, or, The additional module component includes an additional module (2), on which a mounting base (4) is provided for use with the scanner body (1). The mounting base (4) and the scanner body (1) can form an installation structure for the additional module as described in any one of claims 1-3.

5. The additional module component according to claim 4, characterized in that, The additional module (2) is equipped with an interface device (21), which can be inserted into the scanner body (1) during the process of inserting the insertion part (30) into the fixing base (4), and electrically and / or communicatively connect the additional module (2) to the scanner body (1).

6. The additional module component according to claim 5, characterized in that, The insertion part (30) includes a sleeve (300) fitted onto the additional module (2), and a pressure block (6) fixed to the interface device (21) is also embedded in the sleeve (300). Part of the outer peripheral wall of the pressure block (6) is attached to the inner side wall of the sleeve (300) to limit the rotation axis of the locking handle (3).

7. The additional module component according to claim 6, characterized in that, The interface device (21) includes a mounting end (210) fixedly connected to the pressure block (6) and an interface end (211) extending from the mounting end (210) and passing through the sleeve (300). The additional module (2) is also fixedly provided with a positioning block (5), and a positioning groove (52) is formed on the positioning block (5) to allow the interface end (211) to pass through and abut against the side wall of the interface end.

8. A three-dimensional scanner, characterized in that, The 3D scanner includes a scanner body (1), on which a mounting base (4) is provided, and which can cooperate with an additional module (2) to form an installation structure for the additional module as described in any one of claims 1-3; or, The 3D scanner includes a scanner body (1) for use with an additional module (2). The additional module (2) is provided with a mounting base (4). The scanner body (1) can cooperate with the mounting base (4) to form the mounting structure of the additional module as described in any one of claims 1-3.

9. A three-dimensional scanning system, characterized in that, The three-dimensional scanning system includes a scanner body (1) and an additional module (2), wherein the scanner body (1) and the additional module (2) are connected and fixed by the mounting structure of the additional module as described in any one of claims 1-3.

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