Scanning head assembly

Abstract

This invention provides a scanning head assembly, comprising: a scanning host, the scanning host including a base segment and a connector segment integrally formed with the base segment, the connector segment being provided with a switch; and a scanning head including a scanning head body having a cylindrical body, the connector segment being nested within the cylindrical body of the scanning head, the switch cooperating with the scanning head to control the scanning host. The technical solution of this invention effectively solves the problem in the prior art of inconvenient switching of scanning states when using different scanning heads.

Description

Technical Field

[0001] This invention relates to the technical field of scanning equipment, and more specifically, to a scanning head assembly. Background Technology

[0002] When using an in-slot scanner to collect patient data, it is preferable to use a conventional scanning head to ensure optimal scanning efficiency. For patients with particularly small lip and teeth space, a flatter scanning head is required. For patients whose mouth opening posture cannot meet the requirements, a scanning head with a different angle is required.

[0003] When using differentiated scanning heads to acquire data, there are differences in factors such as region cropping size, image transposition, and image correction. The software backend needs to call different algorithm equations according to the status. Existing scanning head components require manual selection by the operator, which is inconvenient and prone to errors. Summary of the Invention

[0004] The main objective of this invention is to provide a scanning head assembly to solve the problem of inconvenience in switching scanning states when using different scanning heads in the prior art.

[0005] To achieve the above objectives, the present invention provides a scanning head assembly comprising: a scanning host, the scanning host including a base segment and a connector segment integrally formed with the base segment, the connector segment being provided with a switch; and a scanning head including a scanning head body having a cylindrical body, the connector segment being nested within the cylindrical body of the scanning head, the switch cooperating with the scanning head to control the scanning host.

[0006] Furthermore, the scanning head also includes a switch rib, which is located on the inner wall of the cylinder. The switch rib works in conjunction with the switch to control the scanning host.

[0007] Furthermore, the switch rib is a switch rib protruding from the inner surface of the scanning head body. The switch rib extends from the side closer to the scanning host to the side farther away from the scanning host. The side of the switch rib closer to the scanning host has a guide slope and a pressing plane. The guide slope gradually increases inward from the side closer to the scanning host to the side farther away from the scanning host. The side of the guide slope farther away from the scanning host is connected to the pressing plane and has the same height.

[0008] Furthermore, the number of switch ribs is less than or equal to the number of switches.

[0009] Furthermore, there are two switches; the scanning head body has no switch ribs, or it has one switch rib, or it has two switch ribs.

[0010] Furthermore, the scanning head assembly also includes a first limiting part, which is disposed on the inner wall of the cylinder and cooperates with the upper and lower surfaces of the connector section.

[0011] Furthermore, the first limiting part is a first limiting rib, which extends along the moving direction of the insertion section.

[0012] Furthermore, the scanning head assembly also includes a second limiting part, which cooperates with the two sides of the connector section.

[0013] Furthermore, the second limiting part is a second limiting rib, which is disposed on the inner wall of the cylinder and located on both sides of the first limiting part, and the second limiting rib is higher than the height of the first limiting part.

[0014] Furthermore, the scanning host and the scanning head are connected by a snap-fit ​​structure.

[0015] Furthermore, the scanning head includes various types of scanning heads, each with a window. The windows of different types of scanning heads are different, and different types of scanning heads correspond to different on / off states of the scanning host.

[0016] Furthermore, different types of scanning heads have different window sizes, and / or different types of scanning heads have different window orientations.

[0017] By applying the technical solution of this invention, when scanning with the scanning head assembly, different scanning heads can be replaced according to different usage scenarios to achieve the optimal scanning state. The connector segment of the scanning host is nested inside the cylinder of the scanning head. The scanning host is controlled via a switch that works in conjunction with the scanning head. This control of the scanning host through the cooperation of the scanning head and the switch eliminates the need for manual selection by the operator, greatly simplifying operation. The technical solution of this invention effectively solves the problem of inconvenience in switching scanning states when using different scanning heads in existing technologies. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A schematic diagram of a structure of an embodiment of a scanning head assembly according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 A cross-sectional schematic diagram of the scanning host unit with the scanning head assembly;

[0021] Figure 3 It shows Figure 1A three-dimensional structural diagram of the scanning host unit with the scanning head assembly;

[0022] Figure 4 It shows Figure 3 A three-dimensional structural diagram of the scanning host from another angle;

[0023] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the scanning head assembly; and

[0024] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the metal heat transfer component of the scanning head assembly.

[0025] The above figures include the following reference numerals:

[0026] 10. Scanning host; 11. Base section; 12. Connector section; 121. Switch; 122. Both sides; 20. Scanning head; 21. Scanning head body; 22. Switch rib; 23. First limiting part; 24. Second limiting part; 25. Snap-fit ​​structure; 251. Horizontal rib; 252. Vertical rib; 253. Limiting boss; 26. Metal heat transfer component; 261. Metal plate; 262. Lens mounting bracket; 263. Limiting boss; 264. Extension cantilever; 100. Reflecting lens. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions has been enlarged, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0031] like Figures 1 to 6 As shown, the scanning head assembly of this embodiment includes a scanning host 10 and a scanning head 20. The scanning host 10 includes a base segment 11 and a connector segment 12 integrally formed with the base segment 11, and a switch 121 is provided on the connector segment 12. The scanning head 20 includes a scanning head body 21, which has a cylindrical body. The connector segment 12 is nested inside the cylindrical body of the scanning head 20. The switch 121 cooperates with the scanning head 20 to control the scanning host 10.

[0032] By applying the technical solution of this embodiment, when scanning with the scanning head assembly, different scanning heads 20 can be replaced according to different usage scenarios to achieve the optimal scanning state. The connector segment 12 of the scanning host 10 is nested inside the cylinder of the scanning head 20. The scanning host 10 is controlled by the cooperation of the switch 121 with the scanning head 20. The control of the scanning host 10 by the cooperation of the scanning head 20 and the switch 121 eliminates the need for manual selection by the operator, greatly facilitating the use of the device. The technical solution of this embodiment effectively solves the problem of inconvenience in switching scanning states when using different scanning heads in the prior art.

[0033] It should be noted that the scanner in this application is a 3D scanner. Preferably, the 3D scanner in this embodiment is an intraoral 3D scanner. The scanning host 10 includes a projection module and a camera module. The projection module is used to project patterns, and the camera module captures the patterns and reproduces them on the terminal. The terminal includes a mobile terminal, such as a mobile phone, or a computer. The substrate segment 11 and the connector segment 12 are an integral structure formed by assembling the substrate segment 11 and the connector segment 12. The first end of the scanning head 20 has an opening in the cylinder, and the connector segment 12 is inserted through the opening of the scanning head 20. The second end of the scanning head 20 has a scanning port (window). For example, the scanning port is set on the side wall of the scanning head 20. The scanning head 20 has a reflective surface. Preferably, the reflective surface is the mirror surface of a plane mirror. The light projected by the scanning host 10 is reflected by the reflective surface to the target object. The light is reflected by the surface of the target object to the reflective surface, and then reflected again by the reflective surface and received by the scanning host 10. The switch 121 can be a contact switch or an inductive switch. The cooperation between the scanning head 20 and the switch 121 controls the scanning host 10 mainly by switching modes. The computer identifies the scanning head being used based on the state of the contact switch and calls the corresponding parameters, which mainly involve the clipping parameters of the window corresponding to the scanning head.

[0034] like Figure 4 As shown, in the technical solution of this embodiment, there are one or more switches 121. When there is only one switch, the manufacturing cost is lower. When there are multiple switches 121, there are more ways for the scanning head 20 to cooperate with the switches 121, enabling more diverse control of the scanning host 10 in various scenarios. Let n represent the number of switches 121, then 2n types of scanning heads can be implemented. For example, if there are two switches 121, four types of scanning head 20 cooperation can be achieved: 1. The scanning head 20 does not contact any switches 121; 2. The scanning head 20 contacts only one switch 121 (two cases); 3. The scanning head 20 contacts two switches 121.

[0035] like Figure 5As shown, in this embodiment, the scanning head 20 further includes a switch rib 22, which is disposed on the inner wall of the cylinder. The switch rib 22 cooperates with the switch 121 to control the scanning host 10. The above structure is compact and has low processing cost. The switch rib 22 can be set according to actual conditions, and its shape can also be diversified. The switch rib 22 has a guide slope. When the scanning host and the scanning head are inserted, the guide slope moves relative to the switch and presses the switch synchronously, which makes it less likely to damage the switch 121. Specifically, the switch rib 22 is a switch rib protruding from the inner surface of the scanning head body 21. The switch rib extends from the side close to the scanning host 10 to the side away from the scanning host 10. The side of the switch rib close to the scanning host 10 has a guide slope and a pressing plane. The guide slope gradually increases inward from the side close to the scanning host 10 to the side away from the scanning host 10. The side of the guide slope away from the scanning host 10 is connected to the pressing plane and has the same height. The switch rib 22 of the above structure has a relatively smooth engagement with the switch 121, which avoids the switch rib 22 from being too hard against the switch 121 and damaging the switch 121.

[0036] like Figures 1 to 5 As shown, in the technical solution of this embodiment, when there are multiple switches 121, the switch rib 22 can be one, or multiple switch ribs 22 less than or equal to the number of switches 121. The above structure realizes multiple forms of cooperation between the scanning head 20 and the scanning host 10. The switch rib 22 can also be zero, which is also a control mode. Specifically, when there are two switches 121, the switch rib 22 in the scanning head 20 has four structural forms: no switch rib 22 in the scanning head body 21, one switch rib 22 in the scanning head body 21, or two switch ribs 22 in the scanning head body 21. The switch rib 22 is a long strip structure protruding from the inner wall of the scanning head body 21.

[0037] like Figure 5 As shown, in this embodiment, the scanning head assembly further includes a first limiting part 23, which is disposed on the inner wall of the cylinder and cooperates with the upper and lower surfaces of the connector section 12. This structure effectively limits the upper and lower positioning of the scanning head 20 on the scanning host 10. Specifically, the first limiting part 23 is a first limiting rib, which extends along the moving direction of the connector section 12. The structure of the first limiting rib reduces processing costs; for example, the processing area of ​​the first limiting rib is significantly reduced compared to a flat surface. The first limiting rib also reduces material usage, and its structure can buffer deformation of the scanning host 10. It should be noted that the limiting rib has a guide surface, which facilitates the cooperation between the scanning host 10 and the scanning head 20.

[0038] like Figures 1 to 5As shown, in the technical solution of this embodiment, the scanning head assembly further includes a second limiting part 24, which cooperates with the two sides of the insertion section 12. The second limiting part 24 realizes the limiting of the insertion section 12 in the left and right directions. Specifically, the second limiting part 24 is a second limiting rib, which is disposed on the inner wall of the cylinder and located on both sides of the first limiting part 23. The second limiting rib is higher than the height of the first limiting part 23. The above structure has low processing cost. There are two second limiting ribs, and the two second limiting ribs have a demolding angle, so the deeper the insertion of the scanning head 20 into the scanning host 10, the tighter the cooperation between the scanning head 20 and the scanning host 10. Specifically, the upper part of the insertion section 12 has a cuboid protrusion, which is close to the base section 11. The two sides 122 of the protrusion cooperate with the second limiting part 24, so only the two sides 122 of the protrusion need to be finely machined. The above structure has low processing cost and compact structure. It should be noted that, as Figure 5 As shown, the second limiting ribs are located on both sides of the upper inner wall of the scanning head 20, and the protrusions are only located on the upper part of the scanning host 10. Therefore, the lower inner wall of the scanning head 20 does not need to be provided with the second limiting ribs.

[0039] like Figure 1 and Figure 6As shown, in this embodiment, the scanning host 10 and the scanning head 20 are connected by a snap-fit ​​structure 25. This structure is convenient to operate and compact. The inner wall of the scanning head body has a snap-fit ​​feature, and the two sides of the connector section 12 have locking blocks. The side of the locking blocks facing the scanning head 20 has an inclined surface, which facilitates the connection between the scanning head 20 and the connector section 12 via the snap-fit ​​mechanism. The locking mechanism includes two sets, which are respectively set on the inner walls of both sides of the scanning head body 21. Each set includes two horizontal ribs 251 and one vertical rib 252. The two horizontal ribs 251 extend along the insertion and removal direction of the scanning host 10, and the vertical rib 252 extends along the direction perpendicular to the scanning host 10. The two horizontal ribs 251 are set parallel to each other at intervals, and one vertical rib 252 is set at the end of the horizontal rib away from the scanning host 10. The two ends of the vertical rib 252 are respectively connected to the two ends of the two horizontal ribs 251. The locking block and the vertical rib 252 are engaged by elastic deformation. Similarly, when the scanning host 10 is disengaged from the scanning head 20, the locking block and the vertical rib 252 are disengaged by elastic deformation. The scanning head assembly also includes a metal heat transfer element 26, which comprises a metal plate 261, a lens mounting bracket 262, two limiting protrusions 263, and an extension cantilever 264. The reflective lens 100 is mounted on the lens mounting bracket 262, which is located at the end of the metal plate 261 furthest from the scanning host 10. The extension cantilever 264 is located at the end of the metal plate 261 closest to the scanning host 10. The two limiting protrusions 263 are located on both sides of the metal plate 261. The surfaces of the two horizontal ribs furthest from their fixed ends are recessed. Each set of latches also includes a limiting boss 253, located at the end of the lower horizontal rib furthest from the scanning host 10. The height of the limiting boss 253 is higher than the height of the vertical rib. The limiting protrusion of the metal heat transfer element is located on the side of the limiting boss 253 furthest from the scanning host 10. This design limits the movement of the metal heat transfer element and prevents fogging and condensation on the lens.

[0040] In this embodiment, the scanning head 20 includes multiple types of scanning heads, each with a window. The windows of different types of scanning heads 20 differ, and each type corresponds to a different on / off state of the scanning host 10. The window sizes of different types of scanning heads 20 are different, and / or the orientations of the windows of different types of scanning heads 20 are different. For example, the first type of scanning head has one switch rib 22, and its window is larger and faces upwards; the second type of scanning head has two switch ribs 22, and its window is larger and faces to the left of the scanner; the third type of scanning head has one switch rib 22, but it is located in a different position from the one switch rib 22 of the first type of scanning head, corresponding to a different switch on the scanner host; the volume of the third type of scanning head is smaller than that of the first type of scanning head, and the window of the third type of scanning head is smaller than that of the first type of scanning head, and so on. The scanner assembly of this embodiment may include one type of scanning head or multiple types of scanning heads.

[0041] like Figure 5 As shown, in this embodiment, the scanning head 20 is made of plastic. This makes it less susceptible to chemical corrosion damage during high-temperature, high-pressure sterilization, chemical wiping, or immersion sterilization. It should be noted that in this embodiment, the reflective surface inside the scanning head 20 is made of glass.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A scanning head assembly, characterized in that, include: The scanning host (10) includes a base segment (11) and a connector segment (12) integral with the base segment (11), and a switch (121) is provided on the connector segment (12). The scanning head (20) includes a scanning head body (21), the scanning head body (21) has a cylindrical body, the connector segment (12) is nested in the cylindrical body of the scanning head (20), and the switch (121) cooperates with the scanning head (20) to realize the control of the scanning host (10); The scanning head (20) also includes a switch rib (22), which is disposed on the inner wall of the cylinder. The switch rib (22) cooperates with the switch (121) to control the scanning host (10). The switch rib (22) is a switch rib protruding from the inner surface of the scanning head body (21). The switch rib extends from the side close to the scanning host (10) to the side away from the scanning host (10). The side of the switch rib close to the scanning host (10) has a guide slope and a pressing plane. The guide slope gradually increases inward from the side close to the scanning host (10) to the side away from the scanning host (10). The side of the guide slope away from the scanning host (10) is connected to the pressing plane and has the same height. The number of switch ribs (22) is less than or equal to the number of switches (121); The first end of the scanning head (20) has an opening in the cylinder, and the second end of the scanning head (20) has a scanning port. The switch (121) is a contact switch. The scanning host (10) also includes a camera module, which is used to acquire patterns through the scanning port and reproduce them on the terminal. The terminal includes a computer. When the connector segment (12) is inserted from the opening of the scanning head (20), the terminal identifies the scanning head (20) used according to the state of the contact switch and calls the trimming parameters of the scanning port corresponding to the scanning head (20).

2. The scanning head assembly according to claim 1, characterized in that, There are two switches (121). The scanning head body (21) has no switch rib (22), or the scanning head body (21) has one switch rib (22), or the scanning head body (21) has two switch ribs (22).

3. The scanning head assembly according to claim 1, characterized in that, The scanning head assembly also includes a first limiting part (23), which is disposed on the inner wall of the cylinder and cooperates with the upper and lower surfaces of the connector section (12).

4. The scanning head assembly according to claim 3, characterized in that, The first limiting part (23) is a first limiting rib, which extends along the moving direction of the plug segment (12).

5. The scanning head assembly according to claim 3, characterized in that, The scanning head assembly also includes a second limiting part (24), which cooperates with the two sides (122) of the connector section (12).

6. The scanning head assembly according to claim 5, characterized in that, The second limiting part (24) is a second limiting rib. The second limiting rib is disposed on the inner wall of the cylinder and located on both sides of the first limiting part (23). The second limiting rib is higher than the height of the first limiting part (23).

7. The scanning head assembly according to claim 1, characterized in that, The scanning host (10) and the scanning head (20) are connected by a snap-fit ​​structure (25).

8. The scanning head assembly according to any one of claims 1 to 7, characterized in that, The scanning head (20) includes various types of scanning heads. Each type of scanning head (20) has a window. The windows of different types of scanning heads (20) are different. Different types of scanning heads (20) correspond to different on / off states of the scanning host (10).

9. The scanning head assembly according to claim 8, characterized in that, The window size of the scanning head (20) varies depending on the type of the scanning head (20), and / or the orientation of the window varies depending on the type of scanning head (20).

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