Laser video measuring device

Abstract

The present disclosure provides a laser video measurement device. The laser video measurement device comprises a support, an elastic member, a driving device, a driving gear and a driven gear. The elastic member comprises a first connecting part and a second connecting part. The first connecting part is fixed to the support. The driving device is fixedly connected with the second connecting part and comprises a torque output part for outputting torque. The driving gear is fixedly installed on the torque output part. The rotation axis of the driven gear is fixedly positioned relative to the support. The elastic member is in an elastically deformed state, so that the driving gear and the driven gear are kept in engagement. By keeping the driving gear and the driven gear in engagement through the elastically deformed state of the elastic member, a gap between the driving gear and the driven gear during transmission can be avoided, and the elastic force of the elastic member is controllable.

Description

Technical Field

[0001] This disclosure relates to the field of measurement technology, specifically to a laser video measurement device. Background Technology

[0002] Laser video measuring equipment is a device that can be applied to the construction and use of engineering projects such as buildings, bridges, urban rail transit, and tunnels, or to cultural relic protection projects. It uses lasers to determine the distance to and displacement of target objects. Internally, laser video measuring equipment includes a transmission mechanism, such as a drive unit, a driving gear, and a driven gear. To protect the drive unit in the event of driven gear seizure, an elastic element can be incorporated, with one end fixed and the other connected to the drive unit. This allows the driving gear to continue rotating even when the driven gear seizes, thus protecting the drive unit. However, backlash can easily occur between the driving and driven gears, affecting transmission accuracy. Utility Model Content

[0003] This disclosure provides a laser video measurement device, which includes a support member, an elastic member, a drive device, a driving gear, and a driven gear. The elastic member includes a first connecting portion and a second connecting portion. The first connecting portion is fixed to the support member. The drive device is fixedly connected to the second connecting portion and includes a torque output portion for outputting torque. The driving gear is mounted anti-rotatingly on the torque output portion. The rotation axis of the driven gear is fixed relative to the support member. The elastic member is in an elastically deformable state, causing the driving gear and the driven gear to remain meshed.

[0004] Alternatively or supplementarily, the rotation axis of the driving gear is parallel to the rotation axis of the driven gear. In a plan view perpendicular to the rotation axis of the driving gear, the direction of application of the elastic force is collinear with the line connecting the rotation axes of the driving gear and the driven gear.

[0005] Alternatively or supplementarily, the elastic element is a flat sheet. The first connecting portion and the second connecting portion are spaced apart along the length of the sheet. The sheet maintains its elastic deformation state by bending in its thickness direction. The line connecting the rotation axis of the driving gear and the rotation axis of the driven gear is substantially parallel to the thickness direction of the sheet.

[0006] Alternatively or supplementally, the spring moves closer to the second connecting part and gradually moves away from the driven gear.

[0007] Alternatively or supplementally, the laser video measurement equipment also includes a fixing member, the drive unit being operably fixed to the second connection via the fixing member, and the fixing member being located on the side of the elastic member facing away from the support member.

[0008] Alternatively or supplementarily, the laser video measurement equipment also includes a laser sensing module, a driven gear that is connected to the focusing mechanism of the laser sensing module, the rotation of the driven gear drives the focusing mechanism to focus the laser sensing module, and the support is the housing of the laser sensing module.

[0009] Alternatively or supplementally, the laser video measurement device also includes at least one adjustment mechanism. The at least one adjustment mechanism includes a first adjustment mechanism. A first connecting portion is fixed to a support member via the first adjustment mechanism. The first adjustment mechanism can be operated to change the distance between the first connecting portion and the support member.

[0010] Alternatively or supplementally, the elastic member further includes a third connecting portion located on the side of the second connecting portion away from and spaced apart from the first connecting portion. At least one adjustment mechanism includes a second adjustment mechanism by which the third connecting portion is fixed to the support member. The second adjustment mechanism can be operated to change the distance between the third connecting portion and the support member.

[0011] Alternatively or supplementarily, each of the at least one adjusting mechanism includes a screw and a spring. One end of the screw is provided with a nut. A first connecting portion has a threaded hole that engages with the screw thread. The spring is fitted onto the screw and located between a spring plate and a support member. Both ends of the spring abut against the spring plate and the support member respectively, and undergo elastic deformation under pressure to position the spring plate between the nut and the spring.

[0012] Alternatively or supplementally, the first connecting part is fixed to the support member by two first adjustment mechanisms, which are spaced apart along the width direction of the elastic member.

[0013] Alternatively or supplementally, the third connecting part is fixed to the support member by two second adjustment mechanisms, which are spaced apart along the width direction of the elastic member.

[0014] Alternatively or supplementarily, the first connecting portion is fixed to the support member by two first adjusting mechanisms spaced apart along the width direction of the elastic member, and the third connecting portion is fixed to the support member by two second adjusting mechanisms spaced apart along the width direction of the elastic member.

[0015] Alternatively or supplementarily, the laser video measurement device also includes a base, a housing, and an image sensing module. The base is adapted to be fixed to a support. The housing is drivable and pitches relative to the base. The image sensing module is used to acquire image information and is housed together with the laser sensing module within the housing.

[0016] The laser video measuring device disclosed herein uses an elastic element in an elastically deformable state to maintain meshing between the driving gear and the driven gear. According to this structure, on the one hand, the elastic element applies an elastic force to the driving gear in a direction closer to the driven gear, which can prevent gaps between the driving gear and the driven gear during transmission and thus avoid affecting transmission accuracy; on the other hand, it makes the elastic force of the elastic element controllable, thereby avoiding the problem of gaps still existing between the driving gear and the driven gear during transmission due to insufficient elastic force, and the problem of the driving gear being unable to disengage from the driven gear when the driven gear seizes up due to excessive elastic force. Attached Figure Description

[0017] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0018] It should be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0019] It should be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0020] Figure 1 This is a schematic diagram of the transmission part of a laser video measurement device according to an embodiment of the present disclosure.

[0021] Figure 2 for Figure 1 A schematic diagram of the transmission part viewed from another perspective.

[0022] Figure 3 To show Figure 1 A structural schematic diagram showing the specific deformation shape of the elastic component.

[0023] Figure 4 This is a structural schematic diagram illustrating the specific deformation shape of the elastic element of a laser video measuring device according to another embodiment of the present disclosure.

[0024] Figure 5 This is a schematic diagram of the structure of a laser sensing module of a laser video measurement device according to an embodiment of the present disclosure.

[0025] Figure 6 This is a schematic diagram illustrating the structure of a first adjustment mechanism of a laser video measurement device according to an embodiment of the present disclosure.

[0026] Figure 7 This is a schematic diagram illustrating the structure of the third connection portion of a laser video measuring device according to an embodiment of the present disclosure.

[0027] Figure 8 This is a schematic diagram illustrating the mechanism of the screw and spring in a laser video measuring device according to an embodiment of the present disclosure.

[0028] Figure 9 This is a schematic diagram of the structure of a laser video measurement device according to an embodiment of the present disclosure.

[0029] Explanation of reference numerals in the attached drawings: 100, laser video measuring equipment; 10, support member; 20, elastic member; 20a, spring; 21, first connecting part; 22, second connecting part; 23, third connecting part; 30, driving device; 31, torque output part; 40, driving gear; 50, driven gear; 60, fixing member; 71, first adjustment mechanism; 72, second adjustment mechanism; 710, screw; 720, spring; 110, base; 120, chamber; 121, laser sensing module; 122, image sensing module; L, length direction; W, width direction; D, thickness direction. Detailed Implementation

[0030] Numerous specific details are set forth below to provide an understanding of the structure, function, and use of the embodiments described and illustrated in the specification and figures. It is to be understood that the embodiments described and illustrated herein are non-limiting examples, and thus it will be appreciated that the particular structural and functional details disclosed herein are representative and exemplary. Variations and changes may be made to these embodiments without departing from the scope of the claims.

[0031] It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Similarly, "abutment" can refer to a direct abutment or an indirect abutment through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0032] The drive mechanism of a laser video measurement device can achieve internal mechanical transmission, for example, through a gear set. The gear set includes, for example, a driving gear and a driven gear. The driving gear is connected to the drive unit, and the driven gear is connected to other mechanisms that need to be driven and meshes with the driving gear. After the drive unit drives the driving gear to rotate, the driven gear, due to its meshing with the driving gear, is driven by the driving gear, thereby driving other mechanisms to operate and achieve their respective functions.

[0033] However, during transmission, the driven gear may seize up due to aging, wear, or misalignment, meaning the driven gear suddenly stops rotating or becomes jammed. When the driven gear stops rotating, the driving gear may also be jammed at its meshing point with the driven gear. However, the drive unit continues to output torque to the driving gear at this time, while the driving gear, being jammed, cannot rotate, which can easily damage the drive unit.

[0034] As described in the background art, the method of setting the elastic element allows the driving gear to continue rotating under the drive of the drive device even when the driven gear seizes. Specifically, when the driven gear seizes, the drive device still applies rotational force to the driving gear, and the driving gear continues to apply rotational force to the driven gear at its meshing point. Since the driven gear cannot rotate, it applies a reaction force to the driving gear at its meshing point, causing the teeth of the driving gear to slide out of the tooth grooves of the driven gear along the tooth surface, thereby driving the driving gear to separate from the driven gear in a direction away from it. Because the second connecting part of the elastic element is connected to the driving gear, it will displace relative to the first connecting part in a direction away from the driven gear, causing the elastic element to generate a spring force in a direction closer to the driven gear. Under the action of this spring force, after the driving gear has rotated one tooth pitch, the teeth adjacent to the teeth that have slid out of the driven gear's tooth groove can slide back into the tooth grooves of the driven gear along the tooth surface, allowing the driving gear to approach the driven gear again. Therefore, when the driven gear seizes up, the drive unit can still drive the driving gear to continue rotating in a state of repeated separation and approach with the driven gear. This prevents damage to the drive unit caused by the simultaneous seizure of the driving and driven gears, thus achieving the purpose of protecting the drive unit.

[0035] However, due to machining errors and / or assembly errors, initial backlash may exist between the driving and driven gears after they are installed. Furthermore, during transmission, backlash may also develop between the driving and driven gears due to the interaction forces at the meshing point. Therefore, a method to prevent backlash between the driving and driven gears is urgently needed.

[0036] To solve the above problems, such as Figure 9 As shown, this disclosure provides a laser video measurement device 100. (As indicated...) Figure 1As shown, the laser video measurement device 100 includes a support member 10, an elastic member 20, a drive device 30, a driving gear 40, and a driven gear 50. The elastic member 20 includes a first connecting portion 21 and a second connecting portion 22, with the first connecting portion 21 fixed to the support member 10. The drive device 30 is fixedly connected to the second connecting portion 22 and includes a torque output portion 31 for outputting torque. The driving gear 40 is mounted anti-rotatingly on the torque output portion 31. The rotation axis of the driven gear 50 is fixed relative to the support member 10. The elastic member 20 is in an elastically deformable state, causing the driving gear 40 and the driven gear 50 to remain meshed.

[0037] The elastic element 20 refers to a component that can generate elastic force through elastic deformation, such as a spring or a sheet. When in an elastically deformed state, the elastic element 20 first applies elastic force to the drive device 30 through the second connecting part 22. Since the driving gear 40 is mounted anti-rotatingly on the torque output part 31 of the drive device 30, the elastic force is transmitted to the driving gear 40 through the torque output part 31 of the drive device 30. Because the elastic element 20 is in an elastically deformed state, it applies elastic force to the driving gear 40 in a direction closer to the driven gear 50, causing the driving gear 40 to generate pressure in the direction closer to the driven gear 50 at the meshing point with the driven gear 50, thus maintaining meshing with the driven gear 50.

[0038] Since the first connecting portion 21 of the elastic element 20 is fixed to the support member 10, and the rotation axis of the driven gear 50 is fixed relative to the support member 10, the position of the second connecting portion 22 of the elastic element 20 can change relative to the rotation axis of the driven gear 50 during transmission. Because the drive device 30 is fixedly connected to the second connecting portion 22, and the driving gear 40 is mounted anti-rotatingly on the torque output portion 31 of the drive device 30, no relative position change occurs between the second connecting portion 22, the drive device 30, and the rotation axes of the driving gear 40. If the position of the rotation axis of the driving gear 40 relative to the rotation axis of the driven gear 50 changes, it will cause a change in the position of the drive device 30 and the second connecting portion 22 relative to the rotation axis of the driven gear 50. Therefore, when the driven gear 50 seizes up, the driving gear 40 can be bounced away from the driven gear 50 relative to it, thus continuing to rotate to protect the drive device 30.

[0039] The laser video measuring device 100 provided in this disclosure uses an elastic element 20 in an elastically deformable state, which keeps the driving gear 40 and the driven gear 50 meshed. On the one hand, the elastic element 20 applies an elastic force to the driving gear 40 in the direction closer to the driven gear 50, which can avoid the occurrence of gaps between the driving gear 40 and the driven gear 50 during transmission and thus affect the transmission accuracy. On the other hand, it makes the elastic force of the elastic element 20 controllable, thereby avoiding the problem that if the elastic force of the elastic element 20 is too small, gaps will still occur between the driving gear 40 and the driven gear 50 during transmission, and if the elastic force of the elastic element 20 is too large, the driving gear 40 will not be able to separate from the driven gear 50 when the driven gear 50 is locked.

[0040] It should be noted that the dimensions of the driving gear 40 and the driven gear 50 can be the same or different, as long as they can achieve transmission through meshing. For example, when the dimension of the driven gear 50 is fixed, the dimension of the driving gear 40 can be smaller than that of the driven gear 50, thereby saving space. Furthermore, there can be various angles between the rotation axis of the driving gear 40 and the rotation axis of the driven gear 50. For example, the rotation axis of the driving gear 40 can be set to be parallel or perpendicular to the rotation axis of the driven gear 50 as needed.

[0041] In some embodiments, the rotation axis of the driving gear 40 and the rotation axis of the driven gear 50 are parallel. For example... Figure 2 As shown, in a plan view perpendicular to the rotation axis of the driving gear 40, the direction of application of the elastic force (indicated by arrow F) is collinear with the line connecting the rotation axes of the driving gear 40 and the driven gear 50 (indicated by dashed line). In this plan view, the rotation axes of the driving gear 40 and the driven gear 50 are both points, and the connecting line passes through these two points. When the direction of application of the elastic force is collinear with this connecting line, it can prevent the driving gear 40 and the driven gear 50 from sliding relative to each other tangentially during transmission due to excessive tangential force, thereby better ensuring that the driving gear 40 and the driven gear 50 remain meshed during transmission.

[0042] In some embodiments, such as Figure 1 and Figure 2As shown, the elastic element 20 is a flat sheet 20a. The first connecting portion 21 and the second connecting portion 22 are spaced apart along the length direction L of the sheet 20a. The sheet 20a maintains its elastic deformation state by bending in its thickness direction D. That is, the sheet 20a can bend in the thickness direction D by relative displacement between the first connecting portion 21 and the second connecting portion 22, thereby generating an elastic force. After the sheet 20a bends in its thickness direction D, the line connecting the rotation axis of the driving gear 40 and the rotation axis of the driven gear 50 can be substantially parallel to the thickness direction D of the sheet 20a, for example, the angle between them is less than 5°, thus ensuring that the direction of application of the elastic force is collinear with the line connecting the rotation axis of the driving gear 40 and the rotation axis of the driven gear 50. On the one hand, the spring piece 20a is more flexible in its thickness direction D than in its length direction L and width direction W, so as to provide elastic force by bending in its thickness direction D, while maintaining stability in its length direction L and width direction W; on the other hand, since the spring piece 20a has a large surface area, it can provide a large contact area when the spring piece 20a is fixed to the support member 10 or the fastener 60 is fixed to the spring piece 20a, thereby improving the assembly stability between the spring piece 20a and other components.

[0043] In some embodiments, such as Figure 3 As shown, when the spring piece 20a is in an elastic state, its specific deformation shape can be to approach the second connecting part 22 and gradually move away from the driven gear 50.

[0044] It should be noted that the shape of the spring 20a is not limited to a flat plate; it can also be other shapes. Depending on the shape, the specific deformation shape of the spring 20a in an elastic state can also vary accordingly.

[0045] For example, in some embodiments, the spring 20a may be initially machined into a curved shape. Figure 4 As shown, the spring piece 20a may include a curved section protruding away from the driven gear 50 to avoid interference with the support member 10. After the spring piece 20a is installed in place, its second connecting portion 22 will be relatively displaced relative to its first connecting portion 21 in a direction away from the driven gear 50, thereby utilizing its initial curved shape to generate elastic deformation. After elastic deformation, the convexity of the curved section of the spring piece 20a can be smaller than before elastic deformation.

[0046] In some embodiments, such as Figure 1As shown, the laser video measurement device 100 also includes a fixing member 60, through which the drive device 30 is operably fixed to the second connecting portion 22. When the drive device 30 malfunctions, it can be easily detached from the second connecting portion 22. After replacing it with a new drive device 30, it can be easily fixed back to the second connecting portion 22 by the fixing member 60.

[0047] If, during assembly, the fastener 60 and the support 10 are connected to the same side of the elastic member 20, it is necessary to consider whether the fastener 60 will interfere with the support 10. If the fastener 60 interferes with the support 10, it may be necessary to readjust the construction of the fastener 60 and / or the support 10, and it may even be necessary to change the construction of other components. Therefore, in some embodiments, such as Figure 2 As shown, the fastener 60 is located on the side of the elastic member 20 facing away from the support member 10, so that there is no need to consider whether the fastener 60 and the support member 10 will interfere during assembly, thereby improving production efficiency.

[0048] In some embodiments, such as Figure 5 As shown, the laser video measurement device 100 also includes a laser sensing module 121. The laser sensing module 121 can be used for laser ranging of a target object. The laser sensing module 121 may include an eyepiece through which the position of the laser beam projected onto the target object can be observed. When the distance to the target object changes, the focal length of the eyepiece needs to be adjusted accordingly to keep the image in the eyepiece clear. Therefore, the laser sensing module 121 may include a focusing mechanism to adjust the focal length of the eyepiece. A driven gear 50 can be drivenly connected to the focusing mechanism of the laser sensing module 121, and the rotation of the driven gear 50 drives the focusing mechanism to focus the laser sensing module 121. The driving device 30 can, for example, drive the focusing mechanism to adjust the focal length of the eyepiece after receiving a command, thereby realizing automatic focusing of the laser sensing module 121. The support member 10 is the housing of the laser sensing module 121. Thus, the housing of the laser sensing module 121 can be used directly to fix the spring 20a, eliminating the need for an additional support member 10, thereby saving materials and improving production efficiency.

[0049] The first connecting portion 21 of the elastic element 20 can be fixed to the support member 10 in various ways, such as by using fasteners like screws. However, if there are machining errors and / or assembly errors, the elastic force generated by the spring piece 20a after installation may deviate slightly from the predetermined value. In this case, it is necessary to adjust the elastic force to eliminate the deviation. For example, the initial deformation amplitude of the elastic element 20 can be changed by adjusting the relative distance between the first connecting portion 21 and the second connecting portion 22 along the direction of application of the elastic force, thereby adjusting the elastic force. Since the position of the second connecting portion 22 relative to the support member 10 remains fixed when the driving gear 40 and the driven gear 50 are meshed, the first connecting portion 21 can be moved relative to the second connecting portion 22 by adjusting the distance between the first connecting portion 21 and the support member 10, thereby changing the elastic deformation of the elastic element 20 to adjust the elastic force.

[0050] In order to adjust the distance between the first connecting portion 21 and the support member 10, in some embodiments, the laser video measurement device 100 further includes at least one adjustment mechanism. For example... Figure 6 As shown, the at least one adjustment mechanism includes a first adjustment mechanism 71. The first connecting portion 21 is fixed to the support member 10 via the first adjustment mechanism 71, and the first adjustment mechanism 71 can be operated to change the distance between the first connecting portion 21 and the support member 10. During installation, if the elastic force of the elastic member 20 is less than a predetermined value, the first adjustment mechanism 71 is operated to bring the first connecting portion 21 closer to the support member 10, causing the elastic member 20 to undergo greater elastic deformation along its thickness direction D, thereby increasing the elastic force; if the elastic force of the elastic member 20 is greater than the predetermined value, the first adjustment mechanism 71 is operated to move the first connecting portion 21 further away from the support member 10, causing the elastic member 20 to undergo smaller elastic deformation along its thickness direction D, thereby decreasing the elastic force.

[0051] In some embodiments, such as Figure 7 As shown, the elastic member 20 also includes a third connecting portion 23. The third connecting portion 23 is located on the side of the second connecting portion 22 away from the first connecting portion 21 and is spaced apart from the second connecting portion 22. The second connecting portion 22 of the elastic member 20 can move away from the driven gear 50 when the driven gear 50 locks up, and the first connecting portion 21 and the third connecting portion 23 of the elastic member 20 located on both sides of the second connecting portion 22 are fixed, which provides better stability than the elastic member 20 being fixed on only one side.

[0052] When only the first connecting part 21 can be adjusted by the first adjusting mechanism 71, the direction of application of the elastic force may be deflected due to the relative displacement between the first connecting part 21 and the third connecting part 23. To avoid this deflection of the direction of application of the elastic force during adjustment, in some embodiments, such as... Figure 7As shown, at least one adjustment mechanism includes a second adjustment mechanism 72. The third connecting portion 23 is fixed to the support member 10 via the second adjustment mechanism 72, and the second adjustment mechanism 72 can be operated to change the distance between the third connecting portion 23 and the support member 10. During the adjustment of the elastic force, the first adjustment mechanism 71 and the second adjustment mechanism 72 can simultaneously adjust the first connecting portion 21 and the third connecting portion 23 located on both sides of the second connecting portion 22 by the same amount, thereby ensuring that the relative position of the first connecting portion 21 and the third connecting portion 23 remains unchanged during the adjustment of the elastic force, so as to avoid the deflection of the direction of application of the elastic force.

[0053] like Figure 1 As shown, since the driving gear 40 is located on one side of the elastic member 20 in the width direction W, the reaction force exerted by the driven gear 50 on the driving gear 40 will cause the elastic member 20 to be subjected to a torque with its length direction L as the axis of rotation. To reduce the effect of this torque on the elastic member 20, in some embodiments, such as... Figure 1 As shown, the first connecting part 21 is fixed to the support member 10 by two first adjustment mechanisms 71, which are spaced apart along the width direction W of the elastic member 20. By fixing the first connecting part 21 with two spaced-apart first adjustment mechanisms 71 in the width direction W, the first connecting part 21 of the elastic member 20 can be prevented from deflecting significantly under the action of torque, which helps to improve stability.

[0054] Similarly, in some embodiments, the third connecting portion 23 can also be fixed to the support member 10 by two second adjusting mechanisms 72, which are spaced apart along the width direction W of the elastic member 20, to prevent the third connecting portion 23 from deflecting significantly under torque. Two spaced-apart adjusting mechanisms along the width direction W can be provided only in one of the first connecting portion 21 or the third connecting portion 23, or two spaced-apart adjusting mechanisms along the width direction W can be provided in both the first connecting portion 21 and the third connecting portion 23, as long as the actual needs are met. For example, when the torque on the elastic member 20 is too large, two spaced-apart adjusting mechanisms along the width direction W can be provided in both the first connecting portion 21 and the third connecting portion 23 to provide sufficient support for the elastic member 20.

[0055] In some embodiments, such as Figure 8As shown, each adjustment mechanism in at least one adjustment mechanism includes a screw 710 and a spring 720. A nut is provided at one end of the screw 710. The first connecting portion 21 has a threaded hole that engages with the screw 710. The spring 720 is fitted onto the screw 710 and is located between the spring piece 20a and the support member 10. Both ends of the spring 720 abut against the spring piece 20a and the support member 10 respectively, and are subjected to compressive elastic deformation to position the spring piece 20a between the nut and the spring 720. By operating the screw 710, the distance between the nut and the support member 10 can be adjusted. During adjustment, the spring piece 20a, being positioned between the nut and the spring 720, moves along with the nut, thus changing the distance between the spring piece 20a and the support member 10. On the one hand, this adjustment mechanism has a simple structure and is easy to assemble and operate; on the other hand, when the laser video measuring device 100 is subjected to external vibration, the spring 720 can act as a buffer and damper.

[0056] In some embodiments, such as Figure 9 As shown, the laser video measurement device 100 also includes a housing 120, a base 110, and an image sensing module 122. The image sensing module 122, such as a camera, is used to acquire image information, which may include the target object and its surrounding environment. Both the laser sensing module 121 and the image sensing module 122 can be housed within the housing 120. The base 110 is suitable for being fixed to a support, such as the ground or a tripod. The housing 120 can be driven to pitch relative to the base 110, thereby enabling adjustments to the laser emission angle and the camera angle. The aforementioned drive device 30, drive gear 40, and driven gear 50 can also be used to drive the housing 120 to pitch relative to the base 110. Similarly, the aforementioned elastic element 20 can prevent damage to the drive device 30 due to the driven gear 50 locking up during the pitching process of the housing 120 relative to the base 110. In addition, the laser video measurement device 100 may also include other mechanisms that can be driven by the drive device 30 and are provided with elastic elements 20 to protect the drive device 30.

[0057] The laser video measurement device 100 can also transmit the measured data and images to external devices such as computers for visualization and data analysis. Based on the processing results, the displacement state and trend of the target object can be determined. For example, during bridge construction, the laser video measurement device 100 can be used to measure the displacement of bridge piers. If the settlement of the bridge piers exceeds the relevant standards, timely measures can be taken.

[0058] It should be noted that the elements described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0059] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into multiple separate components and / or parts. The use of the public designation "a" or "an" to describe a component or part does not imply the exclusion of other components or parts.

[0060] It should be understood that although terms such as “first” or “second” may be used in this disclosure to describe various elements (e.g., the first adjustment mechanism and the second adjustment mechanism), these elements are not defined by these terms, which are only used to distinguish one element from another.

[0061] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0062] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A laser video measurement device, characterized in that, include: Support components; The elastic element includes a first connecting portion and a second connecting portion, wherein the first connecting portion is fixed to the support element; The drive unit is fixedly connected to the second connecting part and includes a torque output part for outputting torque; The drive gear is mounted anti-rotatingly on the torque output section; and The driven gear has its rotation axis fixed relative to the support member; The elastic element is in an elastic deformation state, which keeps the driving gear and the driven gear meshed.

2. The laser video measurement device according to claim 1, characterized in that, The rotation axis of the driving gear is parallel to the rotation axis of the driven gear; in a plan view perpendicular to the rotation axis of the driving gear, the direction of application of the elastic force is collinear with the line connecting the rotation axis of the driving gear and the rotation axis of the driven gear.

3. The laser video measurement device according to claim 1, characterized in that, The elastic element is a flat sheet, the first connecting portion and the second connecting portion are spaced apart in the length direction of the sheet, the sheet maintains the elastic deformation state by bending in its thickness direction, and the line connecting the rotation axis of the driving gear and the rotation axis of the driven gear is substantially parallel to the thickness direction of the sheet.

4. The laser video measurement device according to claim 3, characterized in that, The spring plate approaches the second connecting portion and gradually moves away from the driven gear.

5. The laser video measurement device according to claim 3, characterized in that, It also includes a fixing member, through which the driving device is operably fixed to the second connecting portion, and the fixing member is located on the side of the elastic member opposite to the support member.

6. The laser video measurement device according to claim 5, characterized in that, It also includes a laser sensing module, the driven gear is connected to the focusing mechanism of the laser sensing module, the rotation of the driven gear drives the focusing mechanism to focus the laser sensing module, and the support member is the housing of the laser sensing module.

7. The laser video measurement device according to claim 3, characterized in that, It also includes at least one adjustment mechanism, which includes a first adjustment mechanism, through which the first connecting portion is fixed to the support member, and the first adjustment mechanism can be operated to change the distance between the first connecting portion and the support member.

8. The laser video measurement device according to claim 7, characterized in that, The elastic member further includes a third connecting portion, which is located on the side of the second connecting portion away from the first connecting portion and spaced apart from the second connecting portion; the at least one adjustment mechanism includes a second adjustment mechanism, which fixes the third connecting portion to the support member, and the second adjustment mechanism can be operated to change the distance between the third connecting portion and the support member.

9. The laser video measurement device according to claim 7 or 8, characterized in that, Each of the at least one adjusting mechanism includes a screw and a spring. One end of the screw is provided with a nut. The first connecting part is provided with a threaded hole that is threaded to the screw. The spring is fitted on the screw and located between the spring piece and the support member. The two ends of the spring abut against the spring piece and the support member respectively, and are subjected to compressive elastic deformation to position the spring piece between the nut and the spring.

10. The laser video measurement device according to claim 8, characterized in that, The first connecting portion is fixed to the support member by two first adjustment mechanisms, the two first adjustment mechanisms being spaced apart along the width direction of the elastic member; and / or The third connecting part is fixed to the support member by two second adjustment mechanisms, which are spaced apart along the width direction of the elastic member.

11. The laser video measurement device according to claim 6, characterized in that, Also includes: A base suitable for being fixed to a support; The compartment body can be driven and pitched relative to the base, supported by the base; as well as An image sensing module is used to acquire image information and is housed together with the laser sensing module inside the chamber.

Images