Handheld scanner support and handheld scanner

Abstract

The utility model discloses a handheld scanner support and a handheld scanner, and relates to the technical field of three-dimensional scanning. The handheld scanner support comprises an installation framework and an auxiliary fixing frame, the two opposite ends of the installation framework are used for installing and fixing a camera of a handheld scanner respectively, the auxiliary fixing frame is fixedly arranged on the installation framework, and the auxiliary fixing frame and the camera are located on the same side of the installation framework. The auxiliary fixing frame is used for being fixedly connected with a shell of the handheld scanner. The handheld scanner support and the handheld scanner can solve the problem that in the prior art, due to the fact that the relative positions of the two cameras of a handheld scanner are changed, the accuracy of a measuring system is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional scanning, in particular to a handheld scanner bracket and a handheld scanner. Background Art

[0002] The application of 3D scanning technology solves the need to obtain the 3D shape and size parameters of objects in scientific research. Currently, common 3D scanning equipment is mainly divided into three categories: handheld scanners, dynamic capture scanners and 3D image scanners.

[0003] The most basic principle of handheld scanners is binocular visual distance measurement. A major prerequisite for accurate binocular visual distance measurement is the stability of the distance between the binocular cameras. Due to the weight of the material itself, the deformation of the material with temperature, and the movement of the device when scanning back and forth, the relative position between the two cameras may move, resulting in inaccurate measurement system. Utility Model Content

[0004] The utility model aims to provide a handheld scanner bracket and a handheld scanner, which can solve the problem in the prior art that the handheld scanner has poor measurement system accuracy due to the change in the relative position between two cameras.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect of an embodiment of the utility model, a handheld scanner bracket is provided, comprising a mounting frame and an auxiliary fixing frame, wherein the opposite ends of the mounting frame are respectively used to mount and fix the camera of the handheld scanner, the auxiliary fixing frame is fixedly arranged on the mounting frame, and the auxiliary fixing frame and the camera are located on the same side of the mounting frame, and the auxiliary fixing frame is used to be fixedly connected to the housing of the handheld scanner. The handheld scanner bracket can solve the problem in the prior art that the handheld scanner has a poor measurement system accuracy due to the change in the relative position between the two cameras.

[0007] As an implementation method, the mounting frame includes a first fixing section, a connecting section, and a second fixing section connected in sequence, the first fixing section and the second fixing section are arranged opposite to each other along the center of the connecting section, and the first fixing section and the second fixing section are respectively used to install and fix the camera.

[0008] As an implementation method, it further includes a fastener, the auxiliary fixing frame is provided with a connecting hole, and the fastener is passed through the shell and the connecting hole to fix the auxiliary fixing frame to the shell.

[0009] As an implementation method, there are multiple connection holes, and the connection holes are arranged on a side of the auxiliary fixing frame away from the installation frame.

[0010] As an implementable manner, the auxiliary fixing frame has a plate-like structure, and one side wall of the plate-like structure is fixedly connected to the mounting skeleton.

[0011] As an implementable manner, the auxiliary fixing frame has an L-shaped structure, one side of the L-shaped structure is fixedly connected to the mounting skeleton, and the other side of the L-shaped structure is parallel and spaced from the mounting skeleton.

[0012] As an implementable manner, the auxiliary fixing frame has a U-shaped structure, two folding arms of the U-shaped structure are fixedly connected to the mounting skeleton, and a connecting arm connecting the two folding arms of the U-shaped structure is parallel and spaced from the mounting skeleton.

[0013] As an implementable manner, reinforcing ribs are provided on the two folding arms of the U-shaped structure.

[0014] As an implementable manner, the mounting skeleton and the auxiliary fixing frame are of an integrally formed structure.

[0015] In a second aspect of the embodiments of the present invention, a hand-held scanner is provided, including the above-mentioned hand-held scanner bracket. This hand-held scanner bracket can solve the problem in the prior art that the accuracy of the measurement system is poor due to the change in the relative position between two cameras of the hand-held scanner.

[0016] The beneficial effects of the embodiments of the present invention include:

[0017] The hand-held scanner bracket includes a mounting skeleton and an auxiliary fixing frame. The opposite ends of the mounting skeleton are respectively used to mount and fix the cameras of the hand-held scanner. The auxiliary fixing frame is fixedly arranged on the mounting skeleton, and the auxiliary fixing frame and the cameras are located on the same side of the mounting skeleton. The auxiliary fixing frame is used to be fixedly connected to the housing of the hand-held scanner. The hand-held scanner bracket provided in this application, on the basis of the mounting skeleton, by adding an auxiliary fixing frame and fixedly connecting the auxiliary fixing frame to the housing, can avoid the housing from having a limiting effect on the mounting skeleton, so as to ensure the stability of the relative position between two cameras located at the opposite ends of the mounting skeleton after the mounting skeleton reaches thermal equilibrium. At the same time, it can also concentrate the self-weight of the mounting skeleton in the direction of gravity and the centrifugal force in the direction of swinging during the scanning process on the connection point between the auxiliary fixing frame and the housing, thus avoiding affecting the relative position between the two cameras, and thereby improving the accuracy of the measurement system during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for use in the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 Structural schematic diagram of the handheld scanner provided by the first embodiment of the present utility model;

[0020] Figure 2 Structural schematic diagram of the handheld scanner provided by the second embodiment of the present utility model;

[0021] Figure 3 Structural schematic diagram of the handheld scanner provided by the third embodiment of the present utility model;

[0022] Figure 4 Structural schematic diagram of the handheld scanner provided by the fourth embodiment of the present utility model;

[0023] Figure 5 Usage schematic diagram of the handheld scanner provided by the fourth embodiment of the present utility model.

[0024] Icons: 100 - Handheld scanner bracket; 10 - Installation skeleton; 11 - First fixing section; 12 - Connection section; 13 - Second fixing section; 20 - Auxiliary fixing frame; 21 - Connection hole; 22 - Reinforcing rib; 30 - Fastener; 200 - Handheld scanner; 210 - Camera; 220 - Housing. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the attached drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0029] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Please refer to Figure 5 , an embodiment of the present application provides a handheld scanner 200, including a handheld scanner bracket 100, a camera 210, and a housing 220. The camera 210 is fixedly installed through the handheld scanner bracket 100, and the housing 220 is sleeved outside the handheld scanner bracket 100 and the camera 210. An opening is provided at a position corresponding to the camera lens of the camera 210 on the housing 220 to expose the camera lens of the camera 210. In this way, the housing 220 can protect the camera 210 and does not affect the normal use of the camera 210.

[0032] Due to the weight of the material itself, the deformation of the material with temperature, and the movement of the device during back-and-forth scanning, the relative position between the two cameras 210 may move, resulting in inaccurate measurement systems. To solve the above problems, please refer to Figures 1 to 4, this application provides a handheld scanner bracket 100, which includes an installation skeleton 10 and an auxiliary fixing bracket 20. The opposite ends of the installation skeleton 10 are respectively used to install and fix the cameras 210 of the handheld scanner 200. The auxiliary fixing bracket 20 is fixedly arranged on the installation skeleton 10, and the auxiliary fixing bracket 20 and the camera 210 are located on the same side of the installation skeleton 10. The auxiliary fixing bracket 20 is used to be fixedly connected to the housing 220 of the handheld scanner 200. This handheld scanner bracket 100 can solve the problem in the prior art that the accuracy of the measurement system is poor due to the change in the relative position between the two cameras 210 of the handheld scanner 200.

[0033] It should be noted that, as Figures 1 to 4 shown, this handheld scanner bracket 100 includes an installation skeleton 10 to install and fix the cameras 210 respectively through the opposite ends of the installation skeleton 10. Considering the uncontrollability of the deformation of the installation skeleton 10 itself during thermal expansion and contraction, there is no limit on the installation skeleton 10 itself here. In other words, there is no fixed connection relationship between the installation skeleton 10 and the housing 220. The installation skeleton 10 has and only has a fixed connection relationship with the two cameras 210 to ensure the stability of the relative position between the two cameras 210 at the opposite ends of the installation skeleton 10 after the installation skeleton 10 reaches thermal equilibrium. Regarding the specific structure of the installation skeleton 10, it can be directly called or reasonably designed with reference to the skeleton structure of the handheld scanner 200 in the prior art.

[0034] On this basis, as Figures 1 to 5 shown, this handheld scanner bracket 100 further includes an auxiliary fixing bracket 20. The auxiliary fixing bracket 20 is fixedly arranged on the installation skeleton 10, and moreover, the auxiliary fixing bracket 20 and the camera 210 are located on the same side of the installation skeleton 10. During the actual assembly process, the auxiliary fixing bracket 20 is used to be fixedly connected to the housing 220. In this way, the connection points between this handheld scanner bracket 100 and the housing 220 are all concentrated on the auxiliary fixing bracket 20. The advantage of this design is that the self-weight of the installation skeleton 10 along the gravity direction g and the swinging force along the swinging direction a during the scanning process will only be concentrated on the connection points between the auxiliary fixing bracket 20 and the housing 220, thus avoiding affecting the relative position between the two cameras 210 and improving the measurement accuracy.

[0035] As an implementable manner, as Figures 1 to 4As shown in the figure, the mounting frame 10 includes a first fixing section 11, a connecting section 12, and a second fixing section 13 that are connected in sequence. The first fixing section 11 and the second fixing section 13 are oppositely arranged along the center of the connecting section 12. The first fixing section 11 and the second fixing section 13 are respectively used for mounting and fixing the cameras 210. During actual use, the user can hold the position where the connecting section 12 is located by hand, and then perform binocular vision ranging through the two cameras 210 mounted and fixed on the first fixing section 11 and the second fixing section 13.

[0036] As an implementable manner, as Figure 5 shown, the handheld scanner bracket 100 further includes a fastener 30. As Figures 1 to 4 shown, a connecting hole 21 is provided on the auxiliary fixing frame 20, and a mounting hole is provided on the outer shell 220 corresponding to the connecting hole 21. The fastener 30 sequentially passes through the mounting hole of the outer shell 220 and the connecting hole 21 to fixedly connect the auxiliary fixing frame 20 and the outer shell 220. The advantage of such a design is that the auxiliary fixing frame 20 and the outer shell 220 are detachably connected, which is convenient for the repair and replacement of individual components. Exemplarily, the fastener 30 can be a bolt or a screw.

[0037] As an implementable manner, as Figures 1 to 5 shown, the number of the connecting holes 21 is multiple. The connecting holes 21 are provided on the side of the auxiliary fixing frame 20 away from the mounting frame 10, so as to concentrate the self-weight of the mounting frame 10 along the gravity direction g and the centrifugal force along the swinging direction a during scanning on the side of the auxiliary fixing frame 20 away from the mounting frame 10, further avoiding affecting the mounting frame 10. Exemplarily, the number of the connecting holes 21 can be an even number, such as 2, 4, 6, etc. The multiple connecting holes 21 are spaced and evenly arranged on the side of the auxiliary fixing frame 20 away from the mounting frame 10 to improve the uniformity of the force distribution between the auxiliary fixing frame 20 and the outer shell 220.

[0038] The connection between the auxiliary fixing frame 20 and the mounting frame 10 can be divided into two categories: full connection and half connection. Exemplarily, as Figure 1 shown, in the first embodiment, the auxiliary fixing frame 20 has a plate-like structure, and one side wall of the plate-like structure is fixedly connected to the mounting frame 10. At this time, the connection between the auxiliary fixing frame 20 and the mounting frame 10 is a full connection; or, as Figure 2 shown, in the second embodiment, the auxiliary fixing frame 20 has an L-shaped structure, one side of the L-shaped structure is fixedly connected to the mounting frame 10, and the other side of the L-shaped structure is parallel and spaced from the mounting frame 10. At this time, the connection between the auxiliary fixing frame 20 and the mounting frame 10 is a half connection; or, as Figure 3As shown, in the third embodiment, the auxiliary fixing frame 20 has a U-shaped structure. The two folding arms of the U-shaped structure are fixedly connected to the mounting skeleton 10. The connecting arm connecting the two folding arms of the U-shaped structure is parallel and spaced from the mounting skeleton 10. At this time, the connection between the auxiliary fixing frame 20 and the mounting skeleton 10 is a semi-connection; or, as Figure 4 shown, in the fourth embodiment, reinforcing ribs 22 are provided on the two folding arms of the U-shaped structure. At this time, the connection between the auxiliary fixing frame 20 and the mounting skeleton 10 is a semi-connection.

[0039] Among them, as Figures 1 to 4 shown, the direction x is perpendicular to the fastener 30 and perpendicular to the mounting skeleton 10, the direction y is perpendicular to the fastener 30 and parallel to the mounting skeleton 10, and the direction z is parallel to the fastener 30.

[0040] In comparison, for the connection solution provided by the first embodiment, due to the relatively heavy self-weight of the auxiliary fixing frame 20, relative deformation may occur between the two cameras 210. For the connection solution provided by the second embodiment, the weight of the auxiliary fixing frame 20 is reduced, so the relative deformation between the two cameras 210 can be reduced. On this basis, for the connection solution provided by the third embodiment, since the two folding arms of the U-shaped structure are respectively fixedly connected to the mounting skeleton 10, when the sum of the contact areas of the two folding arms and the mounting skeleton 10 is equal to the contact area of one side of the L-shaped structure and the mounting skeleton 10, the connection solution through the two folding arms is more evenly stressed, so the relative deformation between the two cameras 210 can be further reduced. Further, for the connection solution provided by the fourth embodiment, reinforcing ribs 22 are provided on the two folding arms of the U-shaped structure. Although the weight of the auxiliary fixing frame 20 is inevitably increased to a certain extent, the self-strength of the two folding arms is improved, so the stability of the connection between the auxiliary fixing frame 20 and the mounting skeleton 10 is significantly improved.

[0041] As an implementable way, the mounting skeleton 10 and the auxiliary fixing frame 20 are an integrally formed structure. In other words, in the production and manufacturing process, the mounting skeleton 10 and the auxiliary fixing frame 20 can be made by an integral forming process to avoid separately manufacturing the mounting skeleton 10 and the auxiliary fixing frame 20 and then fixedly connecting them again.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0043] In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

Claims

1. A handheld scanner bracket, characterized in that, It includes an installation skeleton and an auxiliary fixing frame. The opposite ends of the installation skeleton are respectively used for installing and fixing the cameras of the handheld scanner. The auxiliary fixing frame is fixedly arranged on the installation skeleton, and the auxiliary fixing frame and the cameras are located on the same side of the installation skeleton. The auxiliary fixing frame is used for fixedly connecting with the shell of the handheld scanner.

2. The handheld scanner holder according to claim 1, wherein, The installation skeleton includes a first fixing section, a connecting section and a second fixing section which are connected in sequence. The first fixing section and the second fixing section are oppositely arranged along the center of the connecting section. The first fixing section and the second fixing section are respectively used for installing and fixing the cameras.

3. The handheld scanner holder according to claim 1, wherein, It further includes a fastener. A connecting hole is arranged on the auxiliary fixing frame. The fastener passes through the shell and the connecting hole to fixedly connect the auxiliary fixing frame with the shell.

4. The handheld scanner holder according to claim 3, wherein, The number of the connecting holes is multiple, and the connecting holes are arranged on the side of the auxiliary fixing frame away from the installation skeleton.

5. The handheld scanner bracket according to claim 1, characterized in that, The auxiliary fixing frame is in a plate-like structure, and one side wall of the plate-like structure is fixedly connected with the installation skeleton.

6. The handheld scanner holder according to claim 1, wherein, The auxiliary fixing frame is in an L-shaped structure. One side edge of the L-shaped structure is fixedly connected with the installation skeleton, and the other side edge of the L-shaped structure is parallel and spaced from the installation skeleton.

7. The handheld scanner bracket according to claim 1, characterized in that, The auxiliary fixing frame is in a U-shaped structure. Two folding arms of the U-shaped structure are fixedly connected with the installation skeleton, and a connecting arm connecting the two folding arms of the U-shaped structure is parallel and spaced from the installation skeleton.

8. The hand-held scanner holder according to claim 7, wherein, Reinforcing ribs are arranged on the two folding arms of the U-shaped structure.

9. The handheld scanner holder according to claim 1, characterized in that, The installation skeleton and the auxiliary fixing frame are of an integrally formed structure.

10. A handheld scanner, characterized in that, It includes the handheld scanner bracket according to any one of claims 1 to 9.

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