Lens mounting mechanism of handheld laser scanner

Abstract

The utility model relates to the technical field of lens installation of scanners, in particular to a lens installation mechanism of a handheld laser scanner, which comprises an installation assembly convenient for quickly installing a lens body, the installation assembly comprises a circular ring arranged in an annular cavity, and two groups of guide grooves are equidistantly formed in the inner arc surface of the circular ring. A round rod is in sliding fit with the interior of the guide groove, and the round rod generates radial displacement while sliding in the guide groove, so that the round rod has a state of being clamped with or separated from the scanner body, one end of the round rod is elastically connected with a positioning head, and the outer surface of the circular ring is movably connected with an elastic telescopic rod. And a shifting piece is fixedly mounted at the tail end of the elastic telescopic rod. According to the utility model, all the parts are matched for use, so that the lens body can be quickly assembled and disassembled at the same time, and the purposes of saving time and ensuring scanning efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of scanner lens installation, in particular to a lens installation mechanism of a handheld laser scanner. Background Art

[0002] A 3D scanner is a scientific instrument used to detect and analyze the shape (geometry) and appearance data (such as color, surface albedo, etc.) of objects or environments in the real world. The collected data is often used for 3D reconstruction calculations to create digital models of actual objects in the virtual world.

[0003] At present, some 3D scanners are usually spherical in structure, and the lenses installed on them are fixed by bolts. Therefore, when the 3D scanner is in use, if the environment of the object to be measured is in a small and narrow environment, when there is an error in the operation of the personnel, it will cause the 3D scanner to collide and scratch with the nearby environment, causing the lens of the 3D scanner to be damaged and need to be replaced; and when the lens of the scanner is replaced, the bolts fixing the lens need to be removed before the lens can be removed, resulting in a waste of time and affecting the scanning efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a lens mounting mechanism for a handheld laser scanner, which can effectively solve the problem in the prior art that when replacing the lens of the scanner, the bolts fixing the lens need to be dismantled before the lens can be removed, resulting in a waste of time and affecting the scanning efficiency.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a lens mounting mechanism for a handheld laser scanner, comprising a scanner body and a plurality of lens bodies mounted on the scanner body, wherein the surface of the scanner body is provided with a plurality of recesses, the surface of the scanner body is open and closed with a plurality of plug interfaces, the bottom surface of the plug interfaces is symmetrically provided with two groups of arc grooves, the arc grooves are connected with an annular cavity provided inside the scanner body, the annular cavity is connected with the recesses, and also comprises a mounting component for facilitating rapid mounting of the lens body, the mounting component comprises a circular ring provided inside the annular cavity, the inner arc surface of the circular ring is equidistantly provided with two groups of guide grooves, the inner slidable cooperation of the guide groove is provided with a round rod, and the round rod is radially displaced while sliding in the guide groove, so that the round rod has a state of being engaged with or separated from the scanner body, one end of the round rod is elastically connected with a positioning head, the outer surface of the circular ring is movably connected with an elastic telescopic rod, and a paddle is fixedly installed at the end of the elastic telescopic rod.

[0007] Furthermore, a plug rod is fixedly mounted on the lower end of the lens body, two groups of protrusions are symmetrically mounted on the surface of the plug rod, and a slope is provided at the lower end of the protrusion, and two groups of positioning holes are symmetrically provided on the surface of the plug rod.

[0008] Furthermore, the guide groove is opened from deep to shallow in a counterclockwise direction, and the shape of the guide groove is an arc structure.

[0009] Furthermore, a limiting groove is provided on the surface of the round rod, a guide rod is slidably fitted inside the limiting groove, and the guide rod is fixedly mounted on the inner wall of the annular cavity.

[0010] Furthermore, the positioning head is initially located inside the plug interface, and the surface of the positioning head is slidably matched with the inclined surface provided at the lower end of the protrusion, and the positioning head is plug-fitted with the positioning hole.

[0011] Furthermore, the paddle is arranged inside the recess, the paddle is rotationally connected to the recess via a rotating shaft symmetrically mounted on its surface, and the paddle is elastically connected to the inner wall of the recess via a torque spring sleeved on the surface of the rotating shaft.

[0012] Compared with the known prior art, the technical solution provided by the utility model has the following advantages:

[0013] Beneficial effects:

[0014] The utility model provides a circular ring, a positioning head, a paddle and other parts, so that when the lens of the scanner needs to be replaced, the paddle can be toggled to make the paddle start to rotate, and the circular ring can be driven to rotate counterclockwise inside the annular cavity through the elastic telescopic rod, so that the circular rod drives the positioning head to start moving from the shallow part of the guide groove to the deep part, and then drives the positioning head to separate from the positioning hole, and then the lens body that needs to be replaced is rotated clockwise until it cannot rotate anymore and then pulled up for replacement, thereby saving the replacement time of the lens body and ensuring the scanning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the separation of the lens body and the scanner body structure of the utility model;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the mechanism in the middle;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the scanner body in the utility model;

[0020] Figure 5 for Figure 4 The enlarged schematic diagram of the mechanism at B in the middle;

[0021] Figure 6 It is a schematic diagram of the overall structure of the installation component of the utility model.

[0022] The numbers in the figure represent: 1. Scanner body; 101. Notch; 102. Plug port; 103. Arc groove; 104. Annular cavity; 2. Lens body; 201. Insert rod; 202. Protrusion; 203. Positioning hole; 3. Mounting assembly; 301. Ring; 302. Guide groove; 303. Round rod; 3031. Limiting groove; 3032. Guide rod; 304. Positioning head; 305. Elastic telescopic rod; 306. Paddle; 3061. Rotating axis. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] Embodiment: A lens mounting mechanism for a handheld laser scanner, see attached Figure 1 -Attached Figure 6, comprising a scanner body 1, and a plurality of lens bodies 2 mounted on the scanner body 1, a plurality of notches 101 being provided on the surface of the scanner body 1, a plurality of plug interfaces 102 being opened and closed on the surface of the scanner body 1, and the plurality of plug interfaces 102 being provided to facilitate the installation of the lens body 2; two groups of arc grooves 103 being symmetrically provided on the bottom surface of the plug interface 102, and the arc grooves 103 being provided to facilitate the lens body 2 to rotate counterclockwise along the arc grooves 103 by one eighth of a circle after the lens body 2 is installed inside the plug interface 102, so as to limit the lens body 2 and prevent the lens body 2 from being directly pulled and separated from the scanner body 1; it is worth noting that when the lens body 2 rotates counterclockwise, the number of circles of rotation can be adjusted as required, and is not limited to one eighth of a circle in this article, and the arc groove 103 is connected to an annular cavity 104 provided inside the scanner body 1, and the annular cavity 104 is connected to the notches 101, and the annular cavity 104 is provided to facilitate the installation of components;

[0026] Among them, the lower end of the lens body 2 is fixedly installed with an insertion rod 201. By providing the insertion rod 201, it is convenient for the lens body 2 to enter the interior of the insertion interface 102 through the insertion rod 201 to achieve the installation of the lens body 2; two groups of protrusions 202 are symmetrically installed on the surface of the insertion rod 201, and the lower end of the protrusion 202 is provided with an inclined surface. By providing the protrusion 202, after the insertion rod 201 completely enters the interior of the insertion interface 102, the protrusion 202 is placed in the interior of the arc groove 103, and then the lens body 2 is rotated counterclockwise to make the protrusion 202 rotate along the inner wall of the arc groove 103, so as to limit the lens body 2 and prevent the lens body 2 from being separated from the scanner body 1 when subjected to a direct upward pulling force; two groups of positioning holes 203 are symmetrically provided on the surface of the insertion rod 201. By providing the positioning holes 203, it can cooperate with other components so that the lens body 2 can be in a fixed state after the installation is completed, and will not be disturbed by the external environment and shake, thereby ensuring the scanning accuracy of the lens body 2.

[0027] Combined with Figure 1 -Attached Figure 6 , and also includes a mounting assembly 3 that facilitates the rapid installation of the lens body 2, so that the lens body 2 can be quickly installed during installation, saving installation time, ensuring scanning efficiency, and also enabling rapid disassembly and replacement of the lens body 2; the mounting assembly 3 includes a circular ring 301 disposed inside the annular cavity 104, and the circular ring 301 is disposed and rotated to facilitate the disassembly of the lens body 2; two groups of guide grooves 302 are equidistantly provided on the inner arc surface of the circular ring 301, and the guide grooves 302 are provided from deep to shallow in a counterclockwise direction, and the shape of the guide grooves 302 is an arc structure, and the guide grooves 302 are provided to play a guiding and limiting role;

[0028] Among them, the inner sliding fit of the guide groove 302 is equipped with a round rod 303, and the round rod 303 is radially displaced while sliding in the guide groove 302, so that the round rod 303 is in a state of being engaged or separated from the scanner body 1. By setting the round rod 303, it can cooperate with the guide groove 302, so that when the ring 301 rotates, the round rod 303 can extend and retract under the action of the guide groove 302; a limiting groove 3031 is provided on the surface of the round rod 303, and the inner sliding fit of the limiting groove 3031 is equipped with a guide rod 3032, and the guide rod 3032 is fixedly installed on the inner wall of the annular cavity 104. By setting the limiting groove 3031 and the guide rod 3032, when the round rod 303 is extended or retracted, it can move along a fixed path without rotating under the action of the limiting groove 3031 and the guide rod 3032.

[0029] Among them, one end of the round rod 303 is elastically connected to a positioning head 304, and the positioning head 304 is initially located inside the plug interface 102, and the surface of the positioning head 304 is slidably matched with the inclined surface provided at the lower end of the protrusion 202, and the positioning head 304 is plugged and matched with the positioning hole 203. By setting the positioning head 304, it can be moved out from the inside of the positioning hole 203 under the drive of the round rod 303, and the fixed lens body 2 is unlocked, so as to facilitate the rapid replacement of the lens body 2; the outer surface of the ring 301 is movably connected with an elastic telescopic rod 305, and the elastic telescopic rod 305 is provided to play a connecting role;

[0030] The end of the elastic telescopic rod 305 is fixedly installed with a paddle 306, which is arranged inside the notch 101. By setting the paddle 306, the elastic telescopic rod 305 can be driven to move synchronously by paddle 306, so as to drive the ring 301 to rotate counterclockwise while compressing the elastic telescopic rod 305, so that the round rod 303 can enter the deep part of the guide groove 302, and acetone does not drive the positioning head 304 to separate from the positioning hole 203, so as to unlock the lens body 2 for easy replacement; it is worth noting that the paddle 306 is flush with the surface of the scanner body 1 in the initial state;

[0031] Among them, the paddle 306 is rotatably connected to the recess 101 through a rotating shaft 3061 symmetrically installed on its surface. By setting the rotating shaft 3061, the paddle 306 can rotate around the rotating shaft 3061; the paddle 306 is elastically connected to the inner wall of the recess 101 through a torque spring sleeved on the surface of the rotating shaft 3061. By setting the torque spring, when the paddle 306 rotates, it can be driven to deform and generate a reaction force, so that the paddle 306 can be reset after the fluctuation, and when the paddle 306 is reset, it will drive the ring 301 to reset under the reaction force generated by the compressed elastic telescopic rod 305, so that the round rod 303 drives the positioning head 304 to restore to its initial state; it is worth noting that the torque spring is a prior art and is not shown in the figure.

[0032] Specifically, when the lens body 2 is installed, the insertion rod 201 is inserted into the interior of the insertion interface 102, and the positioning head 304 is compressed by the inclined surface opened at the lower end of the protrusion 202, so that the positioning head 304 moves in the direction of the round rod 303. When the lens body 2 is installed in place, it is rotated one-eighth of a turn counterclockwise so that the protrusion 202 and the arc groove 103 form a snap-fit ​​state. While the protrusion 202 rotates, the compressed positioning head 304 will extend out and enter the interior of the positioning hole 203 after the rotation of the lens body 2 is completed, thereby fixing the lens body 2 and realizing the rapid installation of the lens body 2.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lens mounting mechanism for a handheld laser scanner, comprising a scanner body (1) and a plurality of lens bodies (2) mounted on the scanner body (1), wherein an annular cavity (104) is provided inside the scanner body (1), characterized in that: Also includes: A mounting assembly (3) for facilitating quick mounting of a lens body (2), the mounting assembly (3) comprising a circular ring (301) arranged inside an annular cavity (104), the inner arc surface of the circular ring (301) being provided with two groups of guide grooves (302) at equal intervals, a round rod (303) being slidably fitted inside the guide groove (302), and the round rod (303) being radially displaced while sliding in the guide groove (302), so that the round rod (303) is in a state of being engaged with or separated from the scanner body (1), and one end of the round rod (303) is elastically connected to a positioning head (304); An elastic telescopic rod (305) is movably connected to the outer surface of the circular ring (301), and a plectrum (306) is fixedly mounted on the end of the elastic telescopic rod (305).

2. The lens mounting mechanism of a handheld laser scanner according to claim 1, characterized in that: The surface of the scanner body (1) is provided with a plurality of notches (101), the surface of the scanner body (1) is provided with a plurality of plug ports (102), the bottom surface of the plug ports (102) is symmetrically provided with two groups of arc grooves (103), the arc grooves (103) are connected to the annular cavity (104), and the annular cavity (104) is connected to the notches (101).

3. The lens mounting mechanism of a handheld laser scanner according to claim 1, characterized in that: The lower end of the lens body (2) is fixedly mounted with an insertion rod (201), the surface of the insertion rod (201) is symmetrically mounted with two groups of protrusions (202), and the lower ends of the protrusions (202) are provided with inclined surfaces, and the surface of the insertion rod (201) is symmetrically provided with two groups of positioning holes (203).

4. The lens mounting mechanism of a handheld laser scanner according to claim 1, characterized in that: The guide groove (302) is opened from deep to shallow in the counterclockwise direction, and the guide groove (302) is in the shape of an arc structure.

5. The lens mounting mechanism of a handheld laser scanner according to claim 1, characterized in that: A limiting groove (3031) is provided on the surface of the round rod (303), and a guide rod (3032) is slidably fitted inside the limiting groove (3031), and the guide rod (3032) is fixedly mounted on the inner wall of the annular cavity (104).

6. The lens mounting mechanism of a handheld laser scanner according to claim 3, characterized in that: The positioning head (304) is initially located inside the plug interface (102), and the surface of the positioning head (304) is slidably matched with the inclined surface provided at the lower end of the protrusion (202), and the positioning head (304) is plug-fitted with the positioning hole (203).

7. The lens mounting mechanism of a handheld laser scanner according to claim 1, characterized in that: The paddle (306) is arranged inside the recess (101), and the paddle (306) is rotationally connected to the recess (101) via a rotating shaft (3061) symmetrically mounted on its surface, and the paddle (306) is elastically connected to the inner wall of the recess (101) via a torque spring sleeved on the surface of the rotating shaft (3061).

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