CN210660859U - Mounting structure of additional module, additional module assembly, three-dimensional scanner and three-dimensional scanning system - Google Patents

Abstract

The utility model relates to a mounting structure of an additional module, an additional module component, a three-dimensional scanner and a three-dimensional scanning system, the mounting structure comprises a locking handle and a fixed seat which can rotate relatively, the locking handle can be rotatably arranged on one of the additional module and the scanner main body, the fixed seat is fixedly arranged on the other, the locking handle comprises an inserting part and a handle extending along the vertical direction of the additional module to the scanner main body, the handle can drive the locking handle to rotate, the inserting part can be inserted into the fixed seat and locked with the fixed seat along with the rotation of the locking handle relative to the fixed seat, in the mounting structure of the additional module, the handle extends from the inserting part, the locking handle can be rotated by pushing the handle, and then the locking handle is locked with the fixed seat, external auxiliary tools can be omitted, installation can be completed directly through the handle, and the installation process is simple.

Description

Mounting structure of additional module, additional module assembly, three-dimensional scanner and three-dimensional scanning system

Technical Field

The utility model relates to a mechanical connection technical field especially relates to a mounting structure, additional module subassembly, three-dimensional scanner and three-dimensional scanning system of additional module.

Background

With the development and application of three-dimensional scanning technology, the number of suitable occasions for the three-dimensional scanner is increasing. The existing three-dimensional scanner can basically meet the scanning requirements of most occasions, but for some special requirements, such as scanning tasks in severe environments, additional modules suitable for the scanning tasks are generally required to be added in a matched manner to expand the functions of the three-dimensional scanner. Different from the common mechanical connection between two parts, the additional module has special requirements on the connection reliability, the connection stability and the like of the three-dimensional scanner. The utility model discloses a fastening structure, collection system and 3D scanning device are disclosed in the utility model patent of grant publication number CN207962033U, wherein, in order to realize the fastening connection between supplementary collection system and the 3D scanner, set up center post and cover on supplementary collection system and locate outside the center post and can for center post pivoted threaded sleeve pipe, the rigidity of supplementary collection system on the 3D scanner is realized through the cooperation of these two parts.

Although the auxiliary acquisition device can be installed and fixed in the above form, the auxiliary acquisition device is closer to the 3D scanner, and an external tool with a smaller size can be inserted between the auxiliary acquisition device and the 3D scanner to rotate the threaded sleeve, so that the auxiliary acquisition device is inconvenient to install and adjust.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a mounting structure of an add-on module, an add-on module assembly, a three-dimensional scanner and a three-dimensional scanning system, which can be conveniently mounted on the three-dimensional scanner without external auxiliary tools and can be reliably positioned after being mounted.

The utility model discloses an aspect provides a mounting structure of additional module for connect scanner main part and additional module, mounting structure is including locking handle and the fixing base that can relatively rotate, locking handle rotatable install in the additional module with one in the scanner main part, fixing base fixed mounting is on another person, locking handle is including inserting portion and edge the additional module install extremely the epitaxial handle of vertical direction of scanner main part direction, the handle can drive locking handle rotates, inserting portion can insert the fixing base is followed locking handle for the rotation of fixing base and with the fixing base locking.

In one embodiment, the mounting structure further includes a positioning block, the fixing base is provided with a positioning hole, the positioning block and the locking handle sequentially extend into the positioning hole in the process of inserting the locking handle into the fixing base, and a rotation stopping structure for limiting circumferential rotation of the positioning block is formed between the positioning hole and the positioning block.

In one embodiment, the rotation stopping structure comprises a limiting hole section formed on the positioning hole, and a stop surface arranged on the positioning block and capable of abutting against the inner side wall of the limiting hole section.

In one embodiment, the insertion portion includes a sleeve sleeved on the additional module or the scanner body, and a buckle disposed on an outer peripheral surface of one end of the sleeve close to the fixing seat, and the fixing seat is provided with a catching groove capable of allowing the buckle to be inserted and rotated to a catching position.

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

A second aspect of the present invention provides an add-on module assembly for use with a scanner body provided with a mounting base, the add-on module assembly comprising an add-on module, the add-on module and the mounting base being capable of forming a mounting structure for the add-on module as described above, or,

the additional module assembly comprises an additional module, wherein a fixed seat is arranged on the additional module and used for being matched with the scanner main body, and the fixed seat and the scanner main body can form the installation structure of the additional module.

In one embodiment, the additional module is provided with an interface device, and the interface device can be inserted onto the scanner body along with the process of inserting the insertion part into the fixed seat and electrically and/or communicatively connect the additional module to the scanner body.

In one embodiment, the insertion portion includes a sleeve sleeved on the additional module, a pressing block fixedly arranged on the interface device is further embedded in the sleeve, and a part of the peripheral wall of the pressing block is attached to the inner side wall of the sleeve to limit the rotation axis of the locking handle.

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

A third aspect of the present invention provides a three-dimensional scanner, which includes a scanner main body, wherein the scanner main body is provided with the fixing base, and can be matched with the additional module through the fixing base to form an installation structure of the additional module; alternatively, the first and second electrodes may be,

the three-dimensional scanner comprises a scanner main body which is used for being matched with an additional module for use, wherein a fixed seat is arranged on the additional module, and the scanner main body can be matched with the fixed seat to form the mounting structure of the additional module.

The third aspect of the present invention provides a three-dimensional scanning system, which comprises a scanner main body and an additional module, wherein the scanner main body is fixedly connected to the additional module through a mounting structure of the additional module.

Among the mounting structure of above-mentioned additional module, the handle is from inserting the portion outward to promote the handle and can make the locking handle rotate, and then make locking handle and fixing base locking, outside appurtenance can be removed from to this kind of mounting means, and the installation can be accomplished through the handle directly, and the installation is simple.

Drawings

FIG. 1 is a view of the mounting structure of the attachment module assembly and the mounting bracket, wherein the mounting bracket is partially cut away to show the mounting relationship of the locking handle and the mounting bracket;

FIG. 2 is a perspective view of the locking handle;

FIG. 3 is a perspective view of the locating block;

FIG. 4 is a perspective view of the fixing base;

FIG. 5 is a perspective view of the three-dimensional scanner with portions of the scanner body and additional module components broken away to fully illustrate the mounting structure of the two;

FIG. 6 is an exploded view of the mounting structure of the interface device, the press block and the module bracket;

FIG. 7 is an assembled block diagram of the exploded view of FIG. 6;

fig. 8 shows the fitting relationship between the positioning block and the fixing base, wherein the abutting and limiting relationship between the stop surface on the positioning block and the limiting hole section on the fixing base is shown.

Description of the reference numerals

1. A scanner main body; 2. an additional module; 20. a module support; 200. a limiting notch; 2000. a limiting wall surface; 202. an interface mounting section; 2020. an arc-shaped surface; 21. an interface device; 210. an installation end; 211. an interface end; 3. locking the handle; 30. an insertion portion; 300. a sleeve; 301. buckling; 3010. buckling the guide surface; 3011. Buckling the locking surface; 31. a handle; 32. rotating the limiting block; 4. a fixed seat; 40. a buckling groove; 400. a compression surface; 401. rotating the binding surface; 402. sliding into the surface; 403. a stop surface; 404. the bottom surface of the groove; 41. positioning holes; 410. a limiting hole section; 5. positioning blocks; 50. for the middle part; 51. installing a guide surface; 52. positioning a groove; 53. a stop surface; 6. and (7) briquetting.

Detailed Description

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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 8, the mounting structure of the additional module according to an embodiment of the present invention is used for connecting a scanner main body 1 and an additional module 2, and includes a locking handle 3 and a fixing base 4 which can rotate relatively, wherein: the fixing seat 4 is fixedly installed on one of the scanner body 1 or the additional module 2, the locking handle 3 is arranged on the other and can rotate relative to the scanner body 1 or the additional module 2 where the locking handle is located, the locking handle 3 can be locked and fixed relative to the fixing seat 4 through rotation, and the locking handle 3 can be unlocked through reverse rotation relative to the fixing seat 4.

Referring to fig. 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 that extends from the insertion portion 30 in a direction perpendicular to the direction in which the add-on module 2 is mounted to the scanner body 1, and the handle 31 can integrally rotate the locking handle 3 so that the locking handle 3 is locked to the fixing base 4. After the additional module 2 and the scanner body 1 are installed in place, the distance between the two is short, the handle 31 extends outwards, so that a user can lock the two conveniently by pushing the handle 31, and therefore, the handle 31 preferably extends outwards to a position beyond the outer side face of the additional module 2.

The mounting structure further includes a positioning block 5, and the positioning block 5 is fixedly coupled to the additional module 2 or the scanner body 1 to limit the locking handle 3 to a preset mounting position in a direction in which the additional module 2 is mounted to the scanner body 1. Taking the embodiment shown in fig. 1 as an example, 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 the direction of the rotation axis of the locking handle 3, thereby defining the position of the locking handle 3 on the additional module 2 in the direction of the rotation axis of the locking handle 3.

As shown in fig. 3 and 8, the positioning block 5 is provided with a centering portion 50, the centering portion 50 can be fastened and fixed to the additional module 2, and the centering portion 50 can play a role in assisting in limiting, so that the positioning block 5 is prevented from deflecting along with the rotation process of the threaded fastener in the process of screwing the positioning block 5 to the additional module 2.

An installation guide surface 51 is formed on one end of the positioning block 5 close to the fixing base 4, and can be used for guiding the process of blind-inserting the insertion portion 30 of the locking handle 3 onto the fixing base 4. The mounting guide surface 51 is obliquely arranged so that the size of the end of the positioning block 5 where the mounting guide surface 51 is located is smaller than that of the other end, thereby playing a certain guiding role when the locking handle 3 is inserted into the fixed seat 4.

As shown in fig. 3 and 8, the fixing base 4 is provided with a positioning hole 41, the insertion portion 30 of the locking handle 3 and the positioning block 5 for connecting the locking handle 3 sequentially extend into the positioning hole 41, and the positioning block 5 is provided with an installation guide surface 51, and the positioning block 5 extends into the positioning hole 41 before the insertion portion 30, so that 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, a rotation stopping structure for limiting circumferential rotation of the positioning block 5 is formed between the positioning hole 41 and the positioning block 5, the positioning block 5 is fixedly connected with the additional module 2, in the formed mounting structure, the fixing block 5 can be stopped by the rotation stopping structure, relative rotation between the positioning block 5 and the fixing seat 4 is avoided, relative rotation of the additional module 2 relative to the fixing seat 4 is limited, and accordingly change of a scanning angle of the additional module, loss of calibration and influence on scanning accuracy are prevented. In some embodiments, the positioning hole 41 is formed with a limiting hole section 410 which cooperates with the positioning block 5 to limit the circumferential rotation of the positioning block 5, in one embodiment shown in the drawings, the positioning block 5 is formed with a stopping surface 53, the stopping surface 53 is configured as a stopping plane which can abut against a corresponding position on the inner side wall of the limiting hole section 410, during the process of mounting the add-on module 2 to the scanner body 1, the positioning block 5 gradually extends into the positioning hole 41 and is embedded into the limiting hole section 410, in the hole section, the stopping surface 53 abuts against a flat inner wall in the limiting hole section 410, the outer side wall of the rest part of the positioning block 5 abuts against the inner side wall of the limiting hole section 410, so that the positioning block 5 cannot circumferentially rotate in the limiting hole section 410, therefore, the positioning block 5 combines with the locking handle 3 after being inserted in place, not only can limit the relative rotation of the add-on module 2 and the scanner body 1, but also can limit the axial movement of the add-on module 2 and, to keep the relative position of the add-on module 2 on the scanner body 1 stable.

As shown in fig. 1 and 2, the insertion portion 30 of the locking handle 3 includes a sleeve 300 capable of being sleeved on the add-on module 2 or the scanner body 1, and a catch 301 disposed on an outer peripheral surface of one end of the sleeve 300 near the fixing base 4, and a catch groove 40 capable of allowing the catch 301 to be inserted and rotated to a catch position is disposed at a corresponding position on the fixing base 4. When fixing locking handle 3 on fixing base 4, the part of sleeve 300 stretches into in the hole on fixing base 4 to make buckle 301 fall into the catching groove 40, along with locking handle 3's rotation, buckle 301 can rotate to the position department that has pressing surface 400 on catching groove 40, and at this moment, because pressing surface 400 can support and press buckle 301, consequently, locking handle 3 and fixing base 4 are interlocking.

As shown in fig. 4, the catching groove 40 is provided therein with a rotational abutment surface 401 arranged substantially in the insertion direction of the insertion portion 30, a slide-in surface 402, a stop surface 403, and a groove bottom surface 404 capable of contacting the bottom surface of the catch 301. When the inserting part 30 is inserted into the positioning hole 41, one side surface of the buckle 301 can be attached to or close to the sliding-in surface 402 until the bottom surface of the buckle 301 contacts the groove bottom 404, when the locking handle 3 is rotated to be locked, the outer side surface of the buckle 301 can be gradually rotated along the rotating attaching surface 401, and after the locking handle 3 rotates for 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; when the catch 301 abuts the stop surface 403 in the catch groove 40, the locking handle 3 is rotated into position.

In some embodiments, a plurality of buckles 301 are spaced on the outer circumferential surface of the sleeve 300 along the circumferential direction of the rotation of the locking handle 3, and correspondingly distributed catching grooves 40 are formed on the fixed seat 4. As shown in fig. 2, two buckles 301 are provided on the sleeve 300, and the two buckles 301 are spaced approximately 180 ° apart from each other, so as to cooperate with the catching groove 40 on the fixing base 4, so that two locking points are formed between the locking handle 3 and the fixing base 4 at regular intervals, thereby locking the locking handle 3 more firmly.

In some embodiments, the catch 301 has a obliquely arranged catch guide surface 3010 and a catch locking surface 3011 parallel to the plane of rotation of the locking handle 3. So, when buckle 301 was put into catching groove 40 and began to rotate locking handle 3 for fixing base 4, buckle guide surface 3010 at first got into below compressing tightly face 400, because buckle guide surface 3010 slope sets up, buckle 301 is compressed tightly gradually, when locking handle 3 rotated to buckle locking face 3011 laminating compressing tightly face 400, locking handle 3 rotated and targets in place and locked on fixing base 4.

Further, the locking handle 3 may further be provided with a rotation limiting block 32 for limiting the rotation angle of the locking handle 3 relative to the fixing base 4, and in some embodiments, the rotation limiting block 32 is protruded from an end of the insertion portion 30 away from the fixing base 4. Thus, taking the embodiment shown in fig. 5 in which the locking handle 3 is disposed on the additional module 2 as an example, the rotation limiting block 32 is protruded from one end away from the fixing base 4 and is engaged with the limiting notch 200 formed on the module bracket 20 of the additional module 2, and when one side surface of the rotation limiting block 32 abuts against one side of the limiting notch 200, the locking handle 3 and the fixing base 4 can be disengaged from each other; when the locking handle 3 rotates to the other side of the rotation limiting block 32 to abut against the other side of the limiting notch 200, the locking handle 3 cannot further rotate, and at the moment, the pressing surface 400 abuts against the fitting fastening locking surface 3011.

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

The additional module 2 is further provided with an interface device 21, and the interface device 21 can be inserted into the scanner body 1 along with the insertion of the insertion portion 30 into the fixing seat 4, and electrically and/or communicatively connect the additional module 2 to the scanner body 1. In this embodiment, the mounting structure of the present invention serves two purposes simultaneously: (1) maintaining the relative installation position between the additional module 2 and the scanner body 1; (2) the interface device 21 is locked to maintain an electrical connection and/or communication connection relationship between the additional module 2 and the scanner body 1. This embodiment eliminates the need for connecting wires between the add-on module 2 and the scanner body 1 and ensures that the electrical and/or communication connections are securely locked by the mounting structure. The interface device 21 may be configured as a USB interface device as shown in the figure, and when the USB interface device is plugged into a corresponding socket on the scanner main body 1, the add-on module 2 can communicate with the scanner main body 1, and at the same time, the add-on module 2 is electrically connected to a power supply module on the scanner main body 1. It will be appreciated that the interface device 21 may be configured as other configurations that enable electrical and communication connections between the two, such as a Type-c interface device.

As shown in fig. 5 and 6, in some embodiments, the insertion portion 30 of the locking handle 3 comprises a sleeve 300, the interface 21 is provided with a pressing piece 6, and part of the peripheral wall of the pressing piece 6 is attached to the inner side wall of the sleeve 300, so as to define the rotation axis of the locking handle 3. Since the interface 21 needs to be securely fixed to ensure that the add-on module 2 is securely electrically and/or communicatively connected to the scanner body 1, the interface 21 should be able to remain in a secure position during rotation of the locking handle 3. The pressing piece 6 is fixed to the interface 21 and defines a rotation axis of the lock handle 3, so that a rotation locus of the lock handle 3 with respect to the interface 21 is determined, thereby preventing the interface 21 from being touched during the rotation of the lock handle 3.

Referring to fig. 3, 6 and 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 penetrating through the lower portion of the sleeve 300, a positioning groove 52 is formed on a positioning block 5 fixedly disposed on the additional module 2, and a side wall of the interface end 211 is attached to an inner groove wall of the positioning groove 52. As shown in fig. 3, the positioning block 5 is provided with a middle portion 50 which does not rotate circumferentially relative to the additional module 2, and a positioning groove 52 is formed thereon to maintain the interface end 211 to be securely inserted into the socket of the scanner body 1.

As shown in fig. 6 and 7, the add-on module 2 includes a module support 20 for securing associated components, e.g., when the add-on module 2 is configured as a camera assembly, the module support 20 is configured to support a camera and associated components. The lower end of the module holder 20 is provided with an interface mounting portion 202, and a mounting end 210 of the interface 21 is fixed to the interface mounting portion 202 to be fixedly connected with the module holder 20. The pressing block 6 is fixed to the mounting end 210 and is fixedly connected to the interface mounting portion 202. Part of outer peripheral wall of interface mount 202 forms arcwall 2020, and partial outer peripheral wall of briquetting 6 also is formed with the arc outer wall, as shown in fig. 7, the arc outer wall of arcwall 2020 and briquetting 6 forms the approximate face of cylinder that can laminate sleeve 300 internal perisporium jointly to guide for the rotation process of locking handle 3, and, the sleeve is spacing in interface arrangement's both sides with briquetting and interface mount fastening, prevent that USB from causing the device circuit to damage to plug or receive horizontal external force many times.

The module bracket 20 is formed with a limit notch 200, and the limit notch 200 is adapted to engage the rotation limit block 32 of the locking handle 3 to limit the range of rotation of the locking handle 3 relative to the module bracket 20. Specifically, an opening for allowing the rotation limiting block 32 to extend into and rotate by a certain angle is formed in the bottom wall of the housing of the additional module 2, two end faces of the module bracket 20 for forming the limiting notch 200 form a limiting wall surface 2000, and the rotation limiting block 32 can abut against the two limiting wall surfaces 2000 at the initial rotation position and the rotation stop position respectively.

The utility model also provides an additional module subassembly, it is used for the cooperation to be provided with scanner main part 1 use of fixing base 4, and this additional module subassembly includes additional module 2, additional module 2 and scanner main part 1 on fixing base 4 can form the mounting structure of description in the above-mentioned arbitrary embodiment.

In the additional module assembly, it may also include an additional module 2, and the additional module 2 is provided with a fixing base 4, which can be used with the scanner main body 1 and between which the mounting structure described in any of the above embodiments is formed.

The utility model also provides a three-dimensional scanner, fixed fixing base 4 that is provided with on the scanner main part 1 is fixed with aforementioned embodiment on this fixing base 4 additional module subassembly. In addition, the fixing base 4 may also be disposed on the additional module 2, and in this case, the scanning main body 1 of the three-dimensional scanner is disposed with relevant components, such as the locking handle 3, which can cooperate with the fixing base 4 and form the mounting structure of any of the above embodiments.

The above-mentioned additional module 2 can be set as a camera module for three-dimensional scanning in some specific environments, and at this time, the scanning result of the additional module 2 needs to be spliced, so that it is very important to reliably position the additional module 2 on the scanner body 1, and by adopting the above-mentioned mounting structure, or using the above-mentioned 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 for electrically and/or communicatively connecting the two can be reliably fixed, and the three-dimensional scanner has good structural stability and is simple to assemble.

The utility model also provides a three-dimensional scanning system, it includes scanner main part 1 and additional module 2, both are fixed each other through the mounting structure among the aforementioned embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. A mounting structure of an add-on module for connecting a scanner body (1) and an add-on module (2), it is characterized in that the mounting structure comprises a locking handle (3) and a fixed seat (4) which can rotate relatively, the locking handle (3) is rotatably mounted to one of the additional module (2) and the scanner body (1), the fixed seat (4) is fixedly arranged on the other, the locking handle (3) comprises an inserting part (30) and a handle (31) extending along the direction vertical to the direction that the additional module (2) is arranged on the scanner body (1), 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) along with the rotation of the locking handle (3) relative to the fixed seat (4).

2. The mounting structure of the additional module according to claim 1, further comprising a positioning block (5), wherein a positioning hole (41) is formed in the fixing base (4), the positioning block (5) and the locking handle (3) sequentially extend into the positioning hole (41) in the process that the locking handle (3) is inserted into the fixing base (4), and a rotation stopping structure for limiting circumferential rotation of the positioning block (5) is formed between the positioning hole (41) and the positioning block (5).

3. The mounting structure of the add-on module according to claim 2, wherein the rotation stopping structure comprises a limit hole section (410) formed on the positioning hole (41), and a stop surface (53) provided on the positioning block (5) and capable of abutting against an inner side wall of the limit hole section (410).

4. The attachment structure of an add-on module according to claim 1, wherein the insertion portion (30) includes a sleeve (300) fitted to the add-on module (2) or the scanner body (1), and a catch (301) provided on an outer peripheral surface of an end of the sleeve (300) near the fixing base (4), and the fixing base (4) is provided with a catch groove (40) into which the catch (301) can be inserted and rotated to a catch position.

5. Mounting structure of an add-on module according to claim 4, characterized in that the catch (301) has a obliquely arranged catch guide surface (3010) and a catch locking surface (3011) parallel to the rotation plane of the locking handle (3), and the catch groove (40) has a pressing surface (400) abuttable against the catch locking surface (3011).

6. The attachment structure of an add-on module according to claim 1, wherein a rotation stopper (32) for limiting a relative rotation angle of the locking handle (3) and the holder (4) is further provided on the locking handle (3).

7. An add-on module assembly for use with a scanner body (1) provided with a holder (4), the add-on module assembly comprising an add-on module (2), the add-on module (2) and the holder (4) being capable of forming a mounting structure for an add-on module according to any one of claims 1-6, or,

the additional module assembly comprises an additional module (2), wherein a fixed seat (4) is arranged on the additional module (2) and is used for being matched with a scanner main body (1), and a mounting structure of the additional module according to any one of claims 1-6 can be formed between the fixed seat (4) and the scanner main body (1).

8. Supplementary module assembly according to claim 7, characterized in that the supplementary module (2) is provided with interface means (21), said interface means (21) being insertable onto the scanner body (1) following the insertion of the insertion portion (30) into the fixing seat (4) and electrically and/or communicatively connecting the supplementary module (2) to the scanner body (1).

9. Supplementary module assembly according to claim 8, characterized in that the insert (30) comprises a sleeve (300) which is sleeved onto the supplementary module (2), inside the sleeve (300) there is also embedded a pressing piece (6) which is fixed to the interface device (21), part of the peripheral wall of the pressing piece (6) being conformed to the inner side wall of the sleeve (300) to define the axis of rotation of the locking handle (3).

10. The additional module assembly according to claim 9, wherein 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 penetrating through the sleeve (300), the additional module (2) further has a positioning block (5) fixedly disposed thereon, and the positioning block (5) has a positioning groove (52) formed thereon for allowing the interface end (211) to pass through and abut against a 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 matched with the additional module (2) through the fixing seat (4) to form a mounting structure of the additional module according to any one of claims 1-6; alternatively, the first and second electrodes may be,

the three-dimensional scanner comprises a scanner body (1) which is used for being matched with an additional module (2) for use, wherein a fixed seat (4) is arranged on the additional module (2), and the scanner body (1) can be matched with the fixed seat (4) and forms a mounting structure of the additional 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 body (1) and an additional module (2), and the scanner body (1) and the additional module (2) are fixedly connected through a mounting structure of the additional module according to any one of claims 1-6.

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