CN210660859U - Installation structure of add-on module, add-on module assembly, 3D scanner and 3D scanning system - Google Patents

Abstract

The utility model relates to an installation structure of an additional module, an additional module assembly, a three-dimensional scanner and a three-dimensional scanning system. The installation structure comprises a relatively rotatable locking handle and a fixing seat, and the locking handle can be rotatably installed on the One of the additional module and the scanner main body, the fixing seat is fixedly mounted on the other, the locking handle includes an insertion portion and a vertical direction along the installation direction of the additional module to the scanner main body A handle extending in a direction, the handle can drive the locking handle to rotate, the insertion portion can be inserted into the fixing seat and locked with the fixing seat as the locking handle rotates relative to the fixing seat, In the installation structure of the additional module, the handle extends from the insertion portion, and the locking handle can be rotated by pushing the handle, thereby locking the locking handle with the fixing seat, which can eliminate the need for external auxiliary tools, and the installation can be completed directly through the handle. The process is simple.

Description

Installation structure of add-on modules, add-on module components, 3D scanner and 3D scanning system

technical field

The utility model relates to the technical field of mechanical connection, in particular to an installation structure of an additional module, an additional module assembly, a three-dimensional scanner and a three-dimensional scanning system.

Background technique

With the development and application of 3D scanning technology, the applications of 3D scanners are also increasing day by day. Existing 3D 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 add additional modules suitable for such scanning tasks. function to expand. Different from the ordinary mechanical connection between two parts, the connection reliability and connection stability of the add-on module on the 3D scanner have special requirements. The utility model 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 The central column and the threaded sleeve sleeved on the outside of the central column and capable of rotating relative to the central column are used to fix the position of the auxiliary acquisition device on the 3D scanner through the cooperation of these two parts.

Although the above form can realize the installation and fixation of the auxiliary acquisition device, the distance between the auxiliary acquisition device and the 3D scanner is relatively short, and an external tool with a smaller size is required to be able to extend between the two to rotate the threaded sleeve, resulting in the auxiliary acquisition. Installation and adjustment of the device are inconvenient.

Utility model content

Based on this, it is necessary to address the above problems to provide an installation structure for an additional module, an additional module assembly, a 3D scanner and a 3D scanning system. The installation structure of the additional module can be easily installed on the 3D scanner without external auxiliary tools. , the positioning is reliable after installation.

A first aspect of the present invention provides an installation structure for an additional module, which is used to connect a scanner main body and an additional module. The installation structure includes a relatively rotatable locking handle and a fixing seat, and the locking handle is rotatably installed on the One of the additional module and the scanner main body, the fixing seat is fixedly mounted on the other, the locking handle includes an insertion portion and an insertion portion along the direction in which the additional module is installed to the scanner main body. A handle extending in a vertical direction, the handle can drive the locking handle to rotate, and the insertion portion can be inserted into the fixing seat and locked with the fixing seat as the locking handle rotates relative to the fixing seat .

In one of the embodiments, the installation structure further includes a positioning block, and a positioning hole is formed on the fixing base. During the process of inserting the locking handle into the fixing base, the positioning block and the locking The handles are inserted into the positioning holes in sequence, and a rotation stop structure for restricting the circumferential rotation of the positioning blocks is formed between the positioning holes and the positioning blocks.

In one of the embodiments, the anti-rotation structure includes a limiting hole segment formed on the positioning hole, and a positioning block that is provided on the positioning block and can abut on the inner side wall of the limiting hole segment. stop surface.

In one embodiment, the insertion portion includes a sleeve that is sleeved on the additional module or the scanner main body, and a buckle provided on the outer peripheral surface of one end of the sleeve close to the fixing seat , the fixing seat is provided with a buckle slot that can accommodate the buckle to be inserted and rotated to the locking position.

In one embodiment, the locking handle is further provided with a rotation limit block for limiting the relative rotation angle of the locking handle and the fixing base.

A second aspect of the present invention provides an additional module assembly for use with a scanner body provided with a fixing seat, the additional module assembly includes an additional module, and the additional module and the fixing seat can form the above-mentioned additional module the mounting structure, or,

The additional module assembly includes an additional module, and a fixing seat is provided on the additional module, which is used to cooperate with the scanner main body, and the above-mentioned installation structure of the additional module can be formed between the fixing seat and the scanner main body.

In one embodiment, an interface device is installed on the additional module, the interface device can be inserted into the scanner body along with the process of inserting the insertion portion into the fixing seat, and the additional module can be inserted into the scanner body. Electrically and/or communicatively connected to the scanner body.

In one of the embodiments, the insertion part includes a sleeve that is sleeved on the additional module, and a pressing block fixed to the interface device is embedded in the sleeve, and a portion of the pressing block is embedded in the sleeve. The outer peripheral wall is fitted to the inner side wall of the sleeve to define the rotation axis of the locking handle.

In one embodiment, the interface device includes a mounting end fixedly connected with the pressing block, and an interface end extending from the mounting end and passing through the sleeve, and the additional module is also fixed with The positioning block is formed with a positioning groove for allowing the interface end to pass through and abut against the side wall of the interface end.

A third aspect of the present utility model provides a three-dimensional scanner, the three-dimensional scanner includes a scanner main body, the scanner main body is provided with the fixing seat, and can be matched with the additional module through the fixing seat, To form the installation structure of the above-mentioned additional modules; or,

The three-dimensional scanner includes a scanner main body, which is used in conjunction with an additional module, a fixing seat is provided on the additional module, and the scanner main body can cooperate with the fixing seat to form the above-mentioned installation structure of the additional module.

A fourth aspect of the utility model further provides a three-dimensional scanning system, the three-dimensional scanning system includes a scanner main body and an additional module, and the scanner main body and the additional module are connected and fixed by the above-mentioned installation structure of the additional module.

In the installation structure of the above-mentioned additional module, the handle extends from the insertion portion, and the locking handle can be rotated by pushing the handle, thereby locking the locking handle and the fixed seat. The installation can be completed and the installation process is simple.

Description of drawings

Fig. 1 is the installation structure view of the additional module assembly and the fixing seat, wherein the fixing seat is partially cut away in order to show the installation relationship between the locking handle and the fixing seat;

Figure 2 is a perspective view of a locking handle;

3 is a perspective view of a positioning block;

Figure 4 is a perspective view of a fixed seat;

FIG. 5 is a three-dimensional structural view of the three-dimensional scanner, wherein parts of the scanner main body and the additional module assembly are cut away to fully show the installation structure of the two;

Fig. 6 is the exploded structure diagram of the three installation structures of the interface device, the pressing block and the module bracket;

Fig. 7 is the assembly structure diagram of the exploded view in Fig. 6;

Fig. 8 is the embedded relationship between the positioning block and the fixed seat, which shows the abutting and limiting relationship between the stop surface on the positioning block and the limiting hole segment on the fixing seat.

Description of reference numerals

1. Scanner body; 2. Additional modules; 20. Module bracket; 200, Limit slot; 2000, Limit wall surface; 202, Interface installation part; 2020, Curved surface; 21, Interface device; 210, Installation end ; 211, the interface end; 3, the locking handle; 30, the insertion part; 300, the sleeve; 301, the buckle; 3010, the buckle guide surface; 3011, the buckle locking surface; Bit block; 4. Fixed seat; 40. Buckle slot; 400, Pressing surface; 401, Rotating fit surface; 402, Sliding surface; 403, Stop surface; 404, Bottom surface of groove; 41, Positioning hole; 410 5. Positioning block; 50. Centering part; 51. Installation guide surface; 52. Positioning groove; 53. Stop surface; 6. Pressure block.

Detailed ways

It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intervening component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component. When a component is said to be "fixed" to another component, it may be directly fixed to the other component or there may also be an intervening component.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1 to FIG. 8 , an installation structure of an additional module according to an embodiment of the present invention is used to connect the scanner main body 1 and the additional module 2 , and the installation structure includes a locking handle 3 that can rotate relatively and a fixing base 4, wherein: the fixing base 4 is fixedly installed on one of the scanner main body 1 or the additional module 2, and the locking handle 3 is arranged on the other one, and can be relative to the scanner main body 1 or the additional module 2 where it is located. The additional module 2 is rotated, and the rotation of the locking handle 3 relative to the fixed base 4 can lock and fix the two, and the reverse rotation of the locking handle 3 relative to the fixed base 4 can unlock the two.

Referring to FIGS. 2 to 4 , the locking handle 3 includes an insertion portion 30 that can be inserted into the fixing base 4 , and a handle 31 extending from the insertion portion 30 in a vertical direction along the direction in which the add-on module 2 is installed to the scanner main body 1 . , the handle 31 can drive the locking handle 3 to rotate as a whole, so that the locking handle 3 is locked to the fixing base 4 . After the additional module 2 and the scanner main body 1 are installed in place, the distance between the two is relatively close, and the handle 31 is extended, which can facilitate the user to lock the two by pushing the handle 31. Therefore, the handle 31 is preferably extended beyond the additional module 2. the position of the outer side.

The installation structure further includes a positioning block 5, which is fixedly connected to the additional module 2 or the scanner main body 1, so as to limit the locking handle 3 to a preset direction along the installation direction of the additional module 2 to the scanner main body 1. installation location. Taking the embodiment shown in FIG. 1 as an example, the locking handle 3 is rotatably connected to the additional module 2 . In this embodiment, the positioning block 5 is fixed to the additional module 2 along the rotation axis direction of the locking handle 3 . , thereby defining the position of the locking handle 3 on the additional module 2 along the direction of the rotation axis of the locking handle 3 .

3 and 8, the positioning block 5 is provided with a centering portion 50, the centering portion 50 can be tightly fixed to the additional module 2, and the centering portion 50 can play a role of auxiliary limit, avoiding screw positioning During the process from the block 5 to the additional module 2, the positioning block 5 is deflected with the rotation process of the threaded fastener.

An installation guide surface 51 is formed on one end of the positioning block 5 close to the fixing base 4 , which can be used to guide the process of blindly inserting the insertion portion 30 of the locking handle 3 onto the fixing base 4 . The installation guide surface 51 is inclined 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, so as to play a certain guiding role when the locking handle 3 is inserted into the fixing seat 4 .

3 and 8, the fixing base 4 is provided with a positioning hole 41, and the insertion portion 30 of the locking handle 3 and the positioning block 5 for connecting the locking handle 3 are inserted into the positioning hole 41 in turn. An 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 portion 30 . Therefore, the installation guide surface 51 can guide the insertion process of the insertion portion 30 .

The positioning hole 41 is matched with the positioning block 5, and a rotation stop structure for limiting the circumferential rotation of the positioning block 5 is formed therebetween. In this way, the positioning block 5 is fixedly connected with the additional module 2, and in the formed installation structure , the fixed block 5 can be prevented by the said anti-rotation structure to avoid the relative rotation of the positioning block 5 and the fixed seat 4, thus restricting 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, Loss of calibration affects scanning accuracy. In some embodiments, the positioning hole 41 is formed with a limiting hole segment 410 that cooperates with the positioning block 5 to limit the circumferential rotation of the positioning block 5 . In the illustrated embodiment, the positioning block 5 is formed with a stopper Surface 53, the stop surface 53 is set as a stop plane that can abut against the corresponding position on the inner side wall of the limit hole section 410. With the process of installing the additional module 2 to the scanner main body 1, the positioning block 5 gradually extends into the positioning hole 41 and embedded in the limit hole section 410, in this hole section, the stop surface 53 abuts on the straight inner wall in the limit hole section 410, the outer side wall of the rest of the positioning block 5 and the inner side of the limit hole section 410 so that the positioning block 5 cannot rotate circumferentially in the limiting hole section 410. Therefore, after the positioning block 5 is inserted into the position, combined with the locking handle 3, it can not only limit the distance between the additional module 2 and the scanner main body 1 The relative rotation can also limit the axial movement of the additional module 2 and the scanner main body 1 , so as to keep the relative position of the additional module 2 on the scanner main body 1 stable.

1 and 2 , the insertion part 30 of the locking handle 3 includes a sleeve 300 that can be sleeved on the additional module 2 or the scanner main body 1 , and is disposed on the sleeve 300 close to the fixing base 4 A buckle 301 on the outer peripheral surface of one end is provided with a buckle slot 40 that can accommodate the buckle 301 to be inserted and rotated to the locking position at a corresponding position on the fixing base 4 . When fixing the locking handle 3 to the fixing base 4 , part of the sleeve 300 extends into the hole on the fixing base 4 , and makes the buckle 301 fall into the buckle slot 40 . With the rotation of the locking handle 3 , The buckle 301 can be rotated to a position on the buckle slot 40 with the pressing surface 400 . At this time, since the pressing surface 400 can press the buckle 301 , the locking handle 3 and the fixing seat 4 are mutually locked.

As shown in FIG. 4 , the buckle groove 40 is provided with a rotating fit surface 401 , a sliding surface 402 , a stop surface 403 and a groove bottom surface that can be in contact with the bottom surface of the buckle 301 substantially along the insertion direction of the insertion portion 30 . 404. When the inserting portion 30 is inserted into the positioning hole 41, one side of the buckle 301 can be attached to or close to the sliding surface 402 until the bottom surface of the buckle 301 contacts the bottom surface 404 of the groove. The outer side of the buckle 301 can be gradually rotated along the rotating and fitting surface 401 . When the locking handle 3 turns a certain angle, the buckles 301 enter the space below the pressing surface 400 and are pressed against the upper surface by the pressing surface 400 . surface; when the buckle 301 abuts against the stop surface 403 in the buckle slot 40, the locking handle 3 rotates in place.

In some embodiments, along the circumferential direction of the rotation of the locking handle 3 , a plurality of buckles 301 are arranged at intervals on the outer circumference of the sleeve 300 , and correspondingly distributed buckle slots 40 are arranged on the fixing base 4 . As shown in FIG. 2 , two buckles 301 are provided on the sleeve 300 , and the distance between the two buckles 301 is approximately 180°, so as to match the buckle grooves 40 on the fixing base 4 , so that the locking handle 3 is connected to the Two evenly spaced locking points are formed between the fixing bases 4 so as to lock the locking handle 3 more firmly.

In some embodiments, the buckle 301 has a slanted buckling guide surface 3010 and a buckling locking surface 3011 parallel to the rotation plane of the locking handle 3 . In this way, when the buckle 301 is put into the buckle slot 40 and starts to rotate the locking handle 3 relative to the fixed seat 4, the buckle guide surface 3010 first enters below the pressing surface 400. Since the buckle guide surface 3010 is inclined, the buckle 301 is gradually pressed, and when the locking handle 3 is rotated until the snap-fit locking surface 3011 contacts the pressing surface 400 , the locking handle 3 is rotated in place and locked on the fixed seat 4 .

Further, the locking handle 3 may also be provided with a rotation limiting block 32 for limiting the rotation angle of the locking handle 3 relative to the fixing base 4 . In some embodiments, the rotation limiting block 32 is protruded from the insertion portion The end of 30 away from the fixed seat 4. In this way, taking the embodiment shown in FIG. 5 in which the locking handle 3 is provided on the additional module 2 as an example, the rotation limiting block 32 is protruded at one end away from the fixing seat 4 , and is formed on the module bracket 20 with the additional module 2 . When one side of the rotation limit block 32 abuts against one side of the limit notch 200, the locking handle 3 can be disengaged from the fixed seat 4; when the locking handle 3 is rotated to When the other side of the limiting block 32 abuts against the other side of the limiting notch 200 , the locking handle 3 cannot be rotated further. At this time, the pressing surface 400 presses against the snap-locking locking surface 3011 .

1 and 5, an additional module assembly according to an embodiment of the present invention includes an additional module 2 and the installation structure of any one of the above embodiments. In the illustrated embodiment, the locking handle 3 is provided on the add-on module 2, while the fixing base 4 is fixed on the scanner body 1 matched with the add-on module assembly.

The additional module 2 is also provided with an interface device 21, the interface device 21 can be inserted into the scanner main body 1 along with the process of inserting the insertion portion 30 into the fixing base 4, and the additional module 2 is electrically and/or communicatively connected to the scanner on body 1. In this embodiment, the installation structure in the present invention simultaneously serves two functions: (1) maintaining the relative installation position between the additional module 2 and the scanner main body 1; (2) locking the interface device 21 to maintain the The electrical connection and/or the communication connection between the additional module 2 and the scanner main body 1 . This embodiment omits the connection line between the additional module 2 and the scanner main body 1, and ensures that the electrical connection and/or the communication connection between the two are reliably locked through the installation structure. The interface device 21 can be set as the USB interface device shown in the figure. When the USB interface device is plugged into the corresponding socket on the scanner main body 1, the additional module 2 can communicate with the scanner main body 1, and at the same time make the scanner main body 1 communicate with each other. The additional module 2 is electrically connected to the power supply module on the scanner body 1 . It can be understood that the interface device 21 can also be set to other structures capable of realizing electrical connection and communication connection between the two, such as a Type-c interface device.

5 and 6 , in some embodiments, the insertion portion 30 of the locking handle 3 includes a sleeve 300 , and a pressing block 6 is fixed on the interface device 21 , and a part of the peripheral wall of the pressing block 6 is attached to the wall. It is coupled to the inner side wall of the sleeve 300 to define the rotation axis of the locking handle 3 . Since the interface device 21 needs to be securely fixed to ensure that the additional module 2 is reliably electrically and/or communicatively connected to the scanner body 1 , the interface device 21 should be able to maintain a reliable position does not move. The pressing block 6 is fixed to the interface device 21, and can define the rotation axis of the locking handle 3. Therefore, the rotational trajectory of the locking handle 3 relative to the interface device 21 is determined, thereby avoiding contact during the process of rotating the locking handle 3. Interface device 21 .

Referring to FIG. 3 , FIG. 6 and FIG. 7 , the interface device 21 includes a mounting end 210 fixedly connected to the pressing block 6 , and an interface end 211 extending from the mounting end 210 and passing below the sleeve 300 . The additional module 2 A positioning groove 52 is formed on the positioning block 5 which is fixedly arranged above, and the side wall of the interface end 211 is fitted with the inner groove wall of the positioning groove 52 . As shown in FIG. 3 , the positioning block 5 is provided with a centering portion 50 , which does not rotate relative to the additional module 2 in the circumferential direction. Reliable insertion of sockets.

As shown in FIG. 6 and FIG. 7 , 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 assembly, the module bracket 20 is used to support the camera and related components. The lower end of the module bracket 20 is provided with an interface mounting portion 202 , and the mounting end 210 of the interface device 21 is fixed to the interface mounting portion 202 to be fixedly connected with the module bracket 20 . The pressing block 6 and the mounting end 210 are fixed and fixedly connected to the interface mounting portion 202 . Part of the peripheral wall of the interface mounting portion 202 forms an arc-shaped surface 2020, and part of the peripheral wall of the pressure block 6 also forms an arc-shaped outer wall. As shown in FIG. 7, the arc-shaped surface 2020 and the arc-shaped outer wall of the pressure block 6 together form a It fits the approximate cylindrical surface of the inner peripheral wall of the sleeve 300, so as to guide the rotation process of the locking handle 3, and the sleeve tightens the pressure block and the interface mounting part on both sides of the interface device, preventing the USB The circuit of the device is damaged due to repeated plugging and unplugging or lateral external force.

A limit slot 200 is formed on the module bracket 20 , and the limit slot 200 is used to cooperate with the rotation limit 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 shell of the additional module 2 is provided with an opening that allows the rotation limit block 32 to extend into and rotate through a certain angle, and the two end surfaces of the module bracket 20 for forming the limit slot 200 are formed as limit walls 2000 , the rotation limit block 32 may abut against the two limit walls 2000 at the initial rotation position and the rotation stop position, respectively.

The present invention also provides an additional module assembly, which is used in conjunction with the scanner main body 1 provided with the fixing base 4 , the additional module assembly includes an additional module 2 , and the additional module 2 is connected to the fixing base on the scanner main body 1 . 4. The mounting structure described in any of the above embodiments can be formed.

In the add-on module assembly, it can also include the add-on module 2, the add-on module 2 is provided with a fixing seat 4, which can be used with the scanner main body 1, and the installation described in any of the above-mentioned embodiments is formed between the two. structure.

The present invention also provides a three-dimensional scanner. The scanner main body 1 is fixedly provided with a fixing seat 4 , and the additional module assembly described in the foregoing embodiments is fixed on the fixing seat 4 . In addition, the fixing base 4 can also be arranged on the additional module 2. In this case, the scanning main body 1 of the three-dimensional scanner is provided with relevant components that can cooperate with the fixing base 4 and form the installation structure of any of the above-mentioned embodiments. Such as locking handle 3 and other structures.

The above-mentioned additional module 2 can be set as a camera module for performing three-dimensional scanning in some specific environments. At this time, the scanning results of the additional module 2 need to be stitched together. Therefore, its reliable positioning on the scanner main body 1 is very important. , using the aforementioned installation structure, or using the additional module assembly, the additional module 2 can be reliably positioned on the scanner main body 1, and at the same time, the interface device 21 for electrical connection and/or communication connection between the two can be reliably fixed, The three-dimensional scanner has good structural stability and simple assembly.

The present invention also provides a three-dimensional scanning system, which includes a scanner main body 1 and an additional module 2, which are fixed to each other by the installation structure in the foregoing embodiment.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (12)

1. An installation structure for an additional module for connecting a scanner main body (1) and an additional module (2), wherein the installation structure comprises a relatively rotatable locking handle (3) and a fixing seat (4) ), the locking handle (3) is rotatably mounted on one of the additional module (2) and the scanner body (1), the fixing seat (4) is fixedly mounted on the other, The locking handle (3) comprises an insertion part (30) and a handle (31) extending in a vertical direction along the direction in which the additional module (2) is mounted to the scanner main body (1), the handle (31) The locking handle (3) can be driven to rotate, and the inserting portion (30) can be inserted into the fixing seat (4) and rotate with the rotation of the locking handle (3) relative to the fixing seat (4). Lock with the fixing seat (4). 2 . The installation structure of an additional module according to claim 1 , wherein the installation structure further comprises a positioning block ( 5 ), and a positioning hole ( 41 ) is opened on the fixing seat ( 4 ), During the process of inserting the locking handle (3) into the fixing seat (4), the positioning block (5) and the locking handle (3) are inserted into the positioning hole (41) in sequence, and the positioning hole (41) A rotation stop structure for restricting the circumferential rotation of the positioning block (5) is formed between the positioning block (5). 3. The installation structure of an additional module according to claim 2, characterized in that the anti-rotation structure comprises a limit hole segment (410) formed on the positioning hole (41), and a positioning hole segment (410) provided on the positioning hole (41) The block (5) can abut against the stop surface (53) on the inner side wall of the limiting hole segment (410). 4. The installation structure of the add-on module according to claim 1, characterized in that, the insertion part (30) comprises a sleeve that is sleeved on the add-on module (2) or the scanner main body (1) (300), and a buckle (301) arranged on the outer peripheral surface of one end of the sleeve (300) close to the fixing seat (4), the fixing seat (4) is provided with a buckle capable of accommodating the buckle (301) Insert and rotate to the locking slot (40) of the locking position. 5. The installation structure of an additional module according to claim 4, wherein the buckle (301) has an obliquely arranged buckling guide surface (3010) and a rotation plane parallel to the locking handle (3) The buckle locking surface (3011) has a pressing surface (400) that can abut against the buckle locking surface (3011). 6. The installation structure of the additional module according to claim 1, characterized in that, the locking handle (3) is further provided with a setting for limiting the opposite between the locking handle (3) and the fixing seat (4) Rotation limit block (32) for rotation angle. 7. An additional module assembly, characterized in that it is used in conjunction with a scanner body (1) provided with a fixing seat (4), the additional module assembly comprising an additional module (2), and the additional module (2) The mounting structure of the additional module according to any one of claims 1-6 can be formed with the fixing seat (4), or, The additional module assembly includes an additional module (2), and a fixing seat (4) is provided on the additional module (2), which is used to cooperate with the scanner main body (1), and the fixing seat (4) can be connected with all The installation structure of the additional module according to any one of claims 1-6 is formed between the scanner main bodies (1). 8. The add-on module assembly according to claim 7, wherein an interface device (21) is mounted on the add-on module (2), and the interface device (21) can be inserted with the insertion portion (30) The fixing seat (4) is plugged onto the scanner main body (1), and the additional module (2) is electrically and/or communicatively connected to the scanner main body (1). 9. The add-on module assembly according to claim 8, characterized in that the insert (30) comprises a sleeve (300) that is sleeved on the add-on module (2), the sleeve (300) A pressing block (6) fixed to the interface device (21) is also embedded therein, and a part of the outer peripheral wall of the pressing block (6) is attached to the inner side wall of the sleeve (300) to define the The rotation axis of the locking handle (3). 10. The add-on module assembly according to claim 9, wherein the interface device (21) comprises a mounting end (210) fixedly connected with the pressing block (6), and a mounting end (210) from the mounting end (210) ) extends and passes through the interface end (211) of the sleeve (300), a positioning block (5) is also fixed on the additional module (2), and a The interface end (211) passes through and abuts against the positioning groove (52) of the side wall of the interface end. 11. A three-dimensional scanner, characterized in that the three-dimensional scanner comprises a scanner main body (1), the scanner main body (1) is provided with the fixing seat (4), and can be fixed by the scanner main body (1). The seat (4) is matched with the additional module (2) to form the installation structure of the additional module according to any one of claims 1-6; or, The three-dimensional scanner comprises a scanner main body (1), which is used in conjunction with an additional module (2), a fixing seat (4) is provided on the additional module (2), and the scanner main body (1) can be connected with The fixing seat (4) is matched with and forms the installation structure of the add-on module according to any one of claims 1-6. 12. A three-dimensional scanning system, characterized in that the three-dimensional scanning system comprises a scanner main body (1) and an additional module (2), the scanner main body (1) and the additional module (2) passing through The installation structure of the additional module according to any one of claims 1-6 is connected and fixed.

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