Self-adaptive three-dimensional laser scanner

Abstract

The invention relates to the technical field of engineering measurement, provides a self-adaptive three-dimensional laser scanner, and aims to solve the problem that the operation period of the existing three-dimensional laser scanner is prolonged due to structural design defects. A support frame, wherein the scanner is arranged on the support frame; the supporting frame is arranged on the base plate, the base plate comprises three supporting plates and a plurality of V-shaped hinges, the supporting plates are connected with one another in a surrounding mode through the V-shaped hinges, each V-shaped hinge comprises a movable state and a locked state, a mounting frame is arranged between the supporting plates, an elastic assembly is arranged in the mounting frame, and the elastic assembly is connected with the supporting plates through the V-shaped hinges. The elastic assembly is used for switching the states of the V-shaped hinges at the same time. The overturning angles of the supporting plates are adjusted by switching the states of the V-shaped hinges through the elastic assemblies, the contact points of the chassis and the uneven ground can be increased, the stability of the supporting frame erected above the chassis is stabilized, and then the chassis adapts to different ground conditions.

Description

Technical Field

[0001] The invention relates to the technical field of engineering measurement, and in particular to an adaptive three-dimensional laser scanner. Background Art

[0002] 3D laser scanning technology is developing and maturing, and the equipment is gradually being commercialized. The great advantage of 3D laser scanners is that they can quickly scan the measured object and directly obtain the scanned point cloud data without any need. In this way, 3D modeling and virtual reproduction can be carried out efficiently. Therefore, it has become one of the current research hotspots and has been widely used in the fields of digital protection of cultural relics, civil engineering, industrial measurement, investigation, terrain visualization, etc.

[0003] In surveying and mapping operations, the 3D laser scanner includes a support frame for support. However, when the existing support frame is used on ground such as gravel, soft soil, and fine sand, the bottom working surface of the support frame's support legs is small, and the 3D laser scanner is heavy. When it is set up on complex ground, it is affected by factors such as the shaking of gravel and the small force-bearing surface of the support legs that causes settlement. When readings are taken during surveying and mapping operations, there is a situation where the instrument displays level before readings, but not level after readings, which lengthens the operation cycle. Summary of the invention

[0004] Therefore, it is necessary to provide an adaptive three-dimensional laser scanner to solve the problem of prolonged operation cycle of existing three-dimensional laser scanners due to structural design defects.

[0005] To achieve the above object, the inventor provides an adaptive three-dimensional laser scanner, comprising: Scanner; A support frame, on which the scanner is mounted, the support frame comprising a fixed plate and three legs connected to the fixed plate; The chassis, the support frame is arranged on the chassis, the chassis includes three support plates and a plurality of V-shaped hinges, each of the support plates is connected to each other in a circumferential manner through each of the V-shaped hinges, each of the V-shaped hinges includes an active state and a locked state, a mounting frame is arranged between each of the support plates, a tensioning assembly is arranged in the mounting frame, the tensioning assembly is used to simultaneously switch the states of each of the V-shaped hinges, the V-shaped hinge includes a V-shaped shell and a rotating rod slidably arranged at both ends of the V-shaped shell, one end of each of the rotating rods is inserted into each of the V-shaped shells, and the diameter of each of the rotating rods gradually increases from the inserted side to the non-inserted side; A fixing assembly is arranged on the chassis and is used to fix the bottom end of each of the supporting legs.

[0006] Furthermore, a wear pattern section is provided on the outer side of each rotating rod, each of the wear pattern sections occupies 1 / 5-1 / 2 of the length of the corresponding rotating rod, and each of the wear pattern sections extends into 1 / 3-1 / 2 of each of the V-shaped shells.

[0007] Furthermore, the installation frame is circular, an annular groove is provided on the outer side of the installation frame, and the edges of each support plate are arranged in contact with the annular groove.

[0008] Furthermore, the tensioning assembly includes a pressure button and a plurality of guide rods, one end of each guide rod is connected to each V-shaped hinge, the other end of each guide rod is inserted into the installation frame and is provided with a wedge block, an elastic member is provided on the side of each guide rod away from the wedge block, and a plurality of pressure blocks matching each wedge block are provided under the pressure button.

[0009] Furthermore, a return spring is provided in the installation frame, and the return spring is provided below the pressing button.

[0010] Furthermore, each of the elastic members is integrally formed with each of the guide rods, and each of the elastic members is a wavy elastic sheet.

[0011] Furthermore, each of the fixing components includes a limit block, each of the limit blocks is provided with an inclined surface on one side, the angle between each of the inclined surfaces and each of the support plates is 60°-90°, and each of the inclined surfaces is provided with an anti-slip layer.

[0012] Furthermore, each of the fixing components also includes a spring plate arranged on one side of the inclined surface of each of the limit blocks, each of the spring plates is spaced apart from each of the limit blocks, a spring sheet is provided on the side of each of the spring plates away from each of the limit blocks, and each of the spring plates is non-parallel to each of the inclined surfaces.

[0013] Furthermore, a hollow column is provided at the bottom of the installation frame.

[0014] Furthermore, a receiving groove is provided at the bottom of each support plate, and the receiving groove is provided on a side of each support plate away from the installation frame, and a protrusion matching with each receiving groove is provided on the outer side of the hollow column.

[0015] Different from the prior art, the above technical solution has the following advantages: The three-dimensional laser scanner proposed in the present application includes a chassis adapted to a support frame. During surveying and mapping operations, when it is set up on ground such as gravel, soft soil, or fine sand, the contact area between the support frame and the ground can be increased. By switching the state of the V-shaped hinge through an elastic component to adjust the flip angle of each support plate, the contact point between the chassis and the uneven ground can be increased, thereby stabilizing the stability of the support frame set up above it, thereby adapting to different ground conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of the unfolded structure of the chassis of this embodiment; Figure 3This is a schematic diagram of the exploded structure of the V-shaped hinge in this embodiment; Figure 4 This is a schematic diagram of the cross-sectional structure of the installation frame of this embodiment; Figure 5 for Figure 1 The enlarged structural diagram at A in the middle; Figure 6 for Figure 2 Enlarged structural diagram at B in the middle.

[0017] Description of reference numerals: Support frame 1; fixing plate 11; supporting foot 12; chassis 2; support plate 21; arc angle 211; V-shaped hinge 22; V-shaped shell 221; rotating rod 222; grinding section 223 Mounting frame 3; annular groove 31; return spring 32; Elastic component 4; pressing button 41; pressing block 411; guide rod 42; wedge block 421; elastic member 422; Fixed component 5; limit block 51; inclined surface 52; anti-slip layer 53; spring plate 54; spring piece 55; Hollow column 6; protrusion 61. DETAILED DESCRIPTION

[0018] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0019] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0020] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0021] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0022] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0023] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0024] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0025] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0026] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0027] See also Figures 1 to 6 As shown, this embodiment provides an adaptive three-dimensional laser scanner, including: Scanner (not shown in the figure); support frame 1, the scanner is arranged on the support frame 1, the support frame 1 includes a fixed plate 11, and three legs 12 connected to the fixed plate 11; chassis 2, the support frame 1 is arranged on the chassis 2, the chassis 2 includes three support plates 21 and a plurality of V-shaped hinges 22, each of the support plates 21 is connected to each other in a surrounding manner through each of the V-shaped hinges 22, each of the V-shaped hinges 22 includes an active state and a locked state, and a mounting plate is arranged between each of the support plates 21 Frame 3, a tension assembly 4 is provided in the installation frame 3, and the tension assembly 4 is used to simultaneously switch the state of each of the V-shaped hinges 22, and the V-shaped hinge 22 includes a V-shaped shell 221 and a rotating rod 222 slidably arranged at both ends of the V-shaped shell 221, and one end of each rotating rod 222 is inserted into each of the V-shaped shells 221, and the diameter of each rotating rod 222 gradually increases from the inserted side to the non-inserted side; a fixing assembly 5, the fixing assembly 5 is arranged on the chassis 2 and is used to fix the bottom end of each of the supporting legs 12.

[0028] Among them, one end of each rotating rod 222 that does not extend into the V-shaped shell 221 is rotatably connected to each supporting plate 21, and the number of the V-shaped hinges 22 is the same as the number of the supporting plates 21. In this embodiment, there are four-corner stands on the market, and when the number of legs is four, the number of the V-shaped hinges 22 increases correspondingly to the number of supporting plates 21. It is only a matter of addition and subtraction, which will not be repeated here.

[0029] A grinding section 223 is disposed on the outer side of each rotating rod 222 . Each grinding section 223 occupies 1 / 3 of the length of the corresponding rotating rod 222 , and each grinding section 223 extends into 1 / 2 of each V-shaped shell 221 .

[0030] The provision of the wear pattern section 223 can further stabilize the stability of the support plate when the V-shaped hinge 22 is locked, wherein the wear pattern section 223 may be a pattern provided on the outer side of the rotating rod 222, or may be a non-slip rubber layer provided on the outer side of the rotating rod 222. The provision methods are all prior arts and will not be described herein. In the present embodiment, the wear pattern section 223 adopts a pattern provided on the outer side of the rotating rod.

[0031] In this embodiment, the mounting frame 3 is circular, and an annular groove 31 is provided on the outer side of the mounting frame 3. The edges of each support plate 21 are arranged to fit the annular groove 31. The annular groove 31 is used to limit the position of each support plate 21 on the mounting frame 3. In order to avoid wear between the two when the support plate 21 rotates, an arc corner 211 is provided on the edge where each support plate 21 fits the annular groove 31.

[0032] In other preferred embodiments, the installation frame 3 may also be a square, and specific adjustments may be made according to the number of the actual legs 12 of the support frame 1 .

[0033] The tension assembly 4 includes a pressure button 41 and a plurality of guide rods 42, one end of each guide rod 42 is connected to each V-shaped hinge 22, the other end of each guide rod 42 penetrates into the installation frame 3 and is provided with a wedge block 421, and each guide rod 42 is provided with an elastic member 422 on the side away from the wedge block 421, and a plurality of pressure blocks 411 matching with each wedge block 421 are provided under the pressure button 41.

[0034] The number of the guide rods 42 is the same as the number of the V-shaped hinges 22. In the present embodiment, the elastic members 422 are integrally formed with the guide rods 42, and the elastic members 422 are wavy elastic sheets. In other preferred embodiments, the elastic members 422 may also be springs. The tension component 4 is used to switch the V-shaped hinges 22 from an active state to a locked state at the same time, or to switch the V-shaped hinges 22 from a locked state to an active state at the same time. The design of the tension component 4 in conjunction with the V-shaped hinges 22 can improve the adaptability of the chassis 2 when applied to different terrains. In surveying and mapping operations, when it is installed on gravel, soft soil, fine sand and other ground surfaces, the contact area between the support frame and the ground can be increased. By switching the state of the V-shaped hinges 22 through the tension component 4 to adjust the flipping angle of each support plate 21, the contact point between the chassis 2 and the uneven ground can be increased, thereby stabilizing the stability of the support frame 1 installed above it, thereby adapting to different ground conditions.

[0035] A return spring 32 is provided in the installation frame 3 and is disposed below the pressing button 41 . The provision of the return spring 32 enables the pressing of the pressing button 41 to be more stable and improves the stability of the V-shaped hinge 22 when in a locked state.

[0036] Each of the fixing components 5 includes a limit block 51, and each of the limit blocks 51 is provided with a slope 52 on one side. The angle between each of the slopes 52 and each of the support plates 21 is 70°. Each of the slopes 52 is provided with an anti-slip layer 53, and the anti-slip layer 53 is made of rubber. The setting of the limit block 51 can limit the opening angle of the bottom support leg 12 of the support frame 1, so that the installation of the support frame 1 is more stable. The design of the slope 52 and the anti-slip layer 53 can adapt to the common support leg types on the market.

[0037] Each of the fixing components 5 also includes a spring plate 54 arranged on one side of the inclined surface 52 of each of the limit blocks 51, each of the spring plates 54 is spaced apart from each of the limit blocks 51, and each of the spring plates 54 is provided with a spring sheet 55 on the side away from each of the limit blocks 51, and each of the spring plates 54 is arranged non-parallel to each of the inclined surfaces 52; the angle between the spring plate 54 and the support plate 21 is greater than the angle between the inclined surface 52 and the support plate 21, so as to clamp the support leg 12 arranged between the spring sheet 55 and the limit block 51, and the spring sheet 55 adopts a V-shaped metal spring sheet, which can be purchased on the market and will not be described in detail here.

[0038] A hollow column 6 is provided at the bottom of the installation frame 3, and a storage groove (not shown in the figure) is provided at the bottom of each support plate 21. The storage groove is provided on the side of each support plate 21 away from the installation frame 3. A protrusion 61 matching the storage groove is provided on the outer side of the hollow column 6, and the protrusion 61 is annular; the hollow column 6 can be used to match the chassis 2 to reduce the storage volume of the chassis 2. The cooperation between the storage groove and the protrusion 61 can prevent the hollow column 6 from falling off in the stored state, so that it is convenient to open it when used next time.

[0039] Equipment principle: When in use, the chassis 2 is in the stored state, at which time the storage grooves on each support plate 21 are in a matched state with the protrusions 61 on the hollow column 6, and at this time each V-shaped hinge 22 is in a locked state. During operation, the pressing button 41 is stepped on to move the pressing block 411 below the pressing button 41 downward, and drive the wedge block 421 to move away from the elastic member 422, and then push the guide rod 42 to drive the V-shaped shell 221 to move away from the elastic member 422, so that the rotating rod 222 can rotate in the V-shaped shell 221, and the V-shaped hinge 22 is in an active state. Then the operator cooperates to unfold each support plate 21, and then releases the pressing button 41, and the V-shaped hinge 22 is restored to the locked state again. At this time, the hollow column 6 is removed and the chassis 2 is placed on the working ground. , step on the pressure button 41 again to make the angle between each support plate 21 and the mounting frame 3 automatically match the ground for adaptive adjustment, and then set the support foot 12 of the support frame 1 between the corresponding spring plate 54 and the limit block 51, and place the scanner on the fixed plate of the support frame 1 to complete the installation. When the surveying and mapping site needs to be changed, move the chassis 2 to the ground of the next site and then make adaptive adjustments again. At the same time, according to different terrains, the side of the chassis 2 with the pressure button 41 can also face down and step on the mounting frame 3 for adaptive adjustment. After completing the measurement, place the chassis 2 on the hollow column 6, step on the pressure button 41, so that the storage groove on the support plate 21 and the protrusion 61 on the hollow column 6 are in a mating state again to complete the storage.

[0040] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. An adaptive three-dimensional laser scanner, characterized in that: include: Scanner; A support frame, on which the scanner is mounted, the support frame comprising a fixed plate and three legs connected to the fixed plate; The chassis, the support frame is arranged on the chassis, the chassis includes three support plates and a plurality of V-shaped hinges, each of the support plates is connected to each other in a circumferential manner through each of the V-shaped hinges, each of the V-shaped hinges includes an active state and a locked state, a mounting frame is arranged between each of the support plates, a tension assembly is arranged in the mounting frame, the tension assembly is used to simultaneously switch the state of each of the V-shaped hinges, the V-shaped hinge includes a V-shaped shell and a rotating rod slidably arranged at both ends of the V-shaped shell, one end of each of the rotating rods is inserted into each of the V-shaped shells, and the diameter of each of the rotating rods gradually increases from the inserted side to the non-inserted side; A fixing assembly is arranged on the chassis and is used to fix the bottom end of each of the supporting legs.

2. The adaptive three-dimensional laser scanner according to claim 1, characterized in that: A grinding section is provided on the outer side of each rotating rod, each grinding section occupies 1 / 5-1 / 2 of the length of the corresponding rotating rod, and each grinding section penetrates 1 / 3-1 / 2 into each V-shaped shell.

3. The adaptive three-dimensional laser scanner according to claim 1, characterized in that: The installation frame is circular, an annular groove is arranged on the outer side of the installation frame, and the edges of each support plate are arranged in contact with the annular groove.

4. The adaptive three-dimensional laser scanner according to claim 1, characterized in that: The tensioning assembly includes a pressing button and a plurality of guide rods, one end of each guide rod is connected to each V-shaped hinge, the other end of each guide rod is inserted into the installation frame and is provided with a wedge block, an elastic member is provided on the side of each guide rod away from the wedge block, and a plurality of pressing blocks matching the wedge blocks are provided under the pressing button.

5. The adaptive three-dimensional laser scanner according to claim 4, characterized in that: A return spring is arranged in the installation frame, and the return spring is arranged below the pressing button.

6. The adaptive three-dimensional laser scanner according to claim 4, characterized in that: Each of the elastic members is integrally formed with each of the guide rods, and each of the elastic members is a wavy elastic sheet.

7. The adaptive three-dimensional laser scanner according to claim 1, characterized in that: Each of the fixing components comprises a limit block, and each of the limit blocks has an inclined surface on one side. The angle between each of the inclined surfaces and each of the support plates is 60°-90°, and each of the inclined surfaces is provided with an anti-slip layer.

8. The adaptive three-dimensional laser scanner according to claim 7, characterized in that: Each of the fixing components also includes a spring plate arranged on one side of the inclined surface of each of the limiting blocks, each of the spring plates is spaced apart from each of the limiting blocks, a spring sheet is arranged on the side of each of the spring plates away from each of the limiting blocks, and each of the spring plates is non-parallel to each of the inclined surfaces.

9. The adaptive three-dimensional laser scanner according to claim 1, characterized in that: A hollow column is arranged at the bottom of the installation frame.

10. The adaptive three-dimensional laser scanner according to claim 9, characterized in that: A receiving groove is provided at the bottom of each support plate, and the receiving groove is provided on a side of each support plate away from the installation frame. A protrusion matching with each receiving groove is provided on the outer side of the hollow column.

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