Calibrating mirror and laser transmitter

Abstract

The utility model discloses a calibration mirror and a laser emitter, and relates to the technical field of prefabricated shield segment production, the calibration mirror comprises a first bar-shaped mirror body, a second bar-shaped mirror body, a first grating and a second grating, the first bar-shaped mirror body extends along the longitudinal direction to form a first calibration interval; the second strip-shaped mirror body extends in the transverse direction to form a second calibration interval, and a part of the first calibration interval and a part of the second calibration interval are overlapped to form a third calibration interval; the first grating is arranged in the first calibration interval; the second grating is arranged in a second calibration interval, and a part of the first grating and a part of the second grating intersect in a third calibration interval. According to the utility model, the calibration requirements of various laser light paths are met, the precision and the reliability of the whole laser positioning system are improved, and the finished product quality and the production efficiency in the shield segment prefabrication process are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated shield segment production, in particular to a calibration mirror and a laser emitter. Background Art

[0002] During the construction process, the accuracy of shield segment prefabrication is crucial to the overall quality and safety of the project. Technological advancements have led to the application of laser positioning systems in shield segment prefabrication due to their high accuracy and repeatability. Early laser alignment techniques were relatively simple and primarily relied on manual operation. With the increasing demand for automation, more sophisticated automated alignment systems have evolved, improving positioning accuracy and efficiency.

[0003] Currently, laser positioning systems are typically calibrated during shield segment prefabrication using laser rangefinders and 3D scanners, with digital models used to verify the consistency between design and actual production. In most applications, laser positioning systems still require manual intervention for initial calibration and periodic adjustments. Laser projection systems are also used for accurate positioning and guidance during construction, but they require frequent calibration to maintain accuracy.

[0004] However, due to the limitations of the placement of the laser emitter, the arrangement of the optical path, and the input and reflection space of multi-directional light, the calibration of the complex optical path is difficult to achieve, resulting in deviations in the laser emitter in actual applications, reducing the quality of the finished prefabricated shield segments. Utility Model Content

[0005] The main purpose of the utility model is to provide a calibration mirror and a laser transmitter, aiming to solve the problem of optical path calibration of the laser transmitter in a limited space.

[0006] To achieve the above-mentioned purpose, the calibration mirror proposed in the present invention comprises:

[0007] A first strip-shaped mirror body, wherein the first strip-shaped mirror body extends longitudinally to form a first calibration section, and two sides of the first strip-shaped mirror body in the extending direction thereof are respectively a first curved side and a straight side;

[0008] a second strip-shaped mirror body, wherein the second strip-shaped mirror body extends laterally to form a second calibration interval, and a portion of the first calibration interval overlaps with a portion of the second calibration interval to form a third calibration interval; the second strip-shaped mirror body has a second curved side and a third curved side on either side of its extension direction, the second curved side and the third curved side having the same curvature, and the second curved side having a different curvature from the first curved side;

[0009] a first grating extending in a longitudinal direction, disposed between the first curved side and the straight side, and located in the first calibration interval;

[0010] The second grating extends in the transverse direction, is arranged between the second arc-shaped side and the third arc-shaped side, is located in the second calibration interval, and a portion of the first grating and a portion of the second grating intersect in the third calibration interval.

[0011] In one embodiment, the first grating includes a plurality of first grating bars, one end of each of the first grating bars abuts against the first curved side, and the other end of each of the first grating bars abuts against the straight side.

[0012] In one embodiment, the second grating includes a plurality of second grating bars, one end of each of the second grating bars abuts against the second curved side, and the other end of each of the second grating bars abuts against the third curved side.

[0013] In one embodiment, the first strip-shaped mirror body and the second strip-shaped mirror body intersect to form a T-shaped structure.

[0014] In one embodiment, the first strip-shaped mirror body and the second strip-shaped mirror body are integrally formed.

[0015] In one embodiment, the calibration mirror further includes a first outer frame and a second outer frame, the first outer frame is arranged outside the first strip-shaped mirror body, the second outer frame is arranged outside the second strip-shaped mirror body, the first outer frame and the second outer frame intersect, and the intersection of the first outer frame and the second outer frame is connected.

[0016] The present utility model also proposes a laser emitter, comprising a mounting ring, a limiting plate, a clamping mechanism and a calibration mirror as described above, wherein the limiting plate is arranged on the mounting ring, and the limiting plate forms a limiting portion along the axial protrusion of the mounting ring; the clamping mechanism is arranged on the mounting ring, and the clamping mechanism and the limiting plate are arranged opposite to each other, and the clamping mechanism and the limiting portion of the limiting plate jointly form a clamping space; the first strip mirror body and the second strip mirror body are both arranged in the clamping space, and the clamping mechanism can move between a release position and a clamping position along the radial direction of the mounting ring, and move away from or approach the first strip mirror body and the second strip mirror body, and correspondingly release or clamp the first strip mirror body and the second strip mirror body.

[0017] In one embodiment, the clamping mechanism includes a guide column, an elastic reset member and a clamping plate, and the clamping plate and the limiting portion of the limiting plate jointly form the clamping space; the guide column extends radially along the mounting ring, and the guide column is installed on the outer wall of the mounting ring; the clamping plate is slidably installed on the guide column and can move between the release position and the clamping position to correspondingly release or clamp the first strip mirror body and the second strip mirror body; the elastic reset member is sleeved on the guide column, and one end of the elastic reset member is connected to the clamping plate, and the other end of the elastic reset member is connected to the mounting ring.

[0018] In one embodiment, a buffer is provided on both the clamping piece and the side of the limiting portion of the limiting piece facing the calibration mirror.

[0019] In one embodiment, there are multiple limiting plates, and the multiple limiting plates are arranged at intervals along the circumference of the mounting ring, and the clamping plate is arranged opposite to any of the limiting plates.

[0020] The technical solution of the present invention realizes multi-dimensional optical path calibration in a limited space through the first calibration interval, the second calibration interval and the third calibration interval formed by the first strip mirror body and the second strip mirror body, and by using the combination of the first grating and the second grating. The first curved side is combined with the longitudinal grating to calibrate the transmission error of the longitudinal optical path. The second strip mirror body forms a stable transverse optical path through the second curved side, the third curved side and the transverse grating to calibrate the transmission error of the transverse optical path. In the intersection area of ​​the first grating and the second grating, that is, the third calibration interval, the combination of the longitudinal optical path and the transverse optical path forms a calibration interval of the grid-like optical path, providing a multi-dimensional optical path calibration capability. The first curved side and the second curved side with different curvatures correct the influence of the edge of the mirror body on the optical path, further improving the accuracy of the optical path transmission. Through the synergistic effect of the above-mentioned structures, the present invention can not only meet the calibration requirements of various laser optical paths through a single calibration mirror, but also improve the accuracy and reliability of the overall laser positioning system, greatly improving the quality of finished products and production efficiency during the prefabrication of shield segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of an embodiment of a calibration mirror provided by the present invention;

[0023] Figure 2 A schematic structural diagram of an embodiment of the first calibration interval, the second calibration interval, and the third calibration interval provided by the present invention;

[0024] Figure 3 This is a schematic structural diagram of an embodiment of a laser transmitter provided by the present utility model;

[0025] Figure 4 This is a structural schematic diagram of an embodiment of the clamping mechanism provided by the utility model.

[0026] Description of Figure Numbers:

[0027] 10. First strip mirror; 11. First calibration section; 12. First curved side; 13. Straight side; 20. Second strip mirror; 21. Second calibration section; 22. Second curved side; 23. Third curved side; 30. Third calibration section; 40. First grating; 50. Second grating; 41. First grating bars; 51. Second grating bars; 60. First outer frame; 70. Second outer frame;

[0028] 100, mounting ring; 200, limiting plate; 300, clamping mechanism; 400, buffer; 210, limiting portion; 301, clamping space; 310, guide column; 320, elastic reset member; 330, clamping plate.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Currently, laser positioning systems are typically calibrated during shield segment prefabrication using laser rangefinders and 3D scanners, with digital models used to verify consistency between design and actual production. In most applications, laser positioning systems still require manual intervention for initial calibration and periodic adjustments. Laser projection systems are also used for accurate positioning and guidance during construction, but they require frequent calibration to maintain accuracy.

[0034] However, due to the limitations of the placement of the laser emitter, the arrangement of the optical path, and the input and reflection space of multi-directional light, the calibration of the complex optical path is difficult to achieve, resulting in deviations in the laser emitter in actual applications, reducing the quality of the finished prefabricated shield segments.

[0035] In order to solve this technical problem, the utility model proposes a calibration mirror and a laser emitter.

[0036] See also Figure 1 and Figure 2In one embodiment of the present invention, the calibration mirror comprises a first strip mirror body 10, a second strip mirror body 20, a first grating 40 and a second grating 50. The first strip mirror body 10 extends longitudinally to form a first calibration section 11. The first strip mirror body 10 has a first curved side 12 and a straight side 13 on both sides of its extension direction. The second strip mirror body 20 extends transversely to form a second calibration section 21. Part of the first calibration section 11 overlaps with part of the second calibration section 21 to form a third calibration section 30. The second strip mirror body 20 has a second curved side 12 and a straight side 13 on both sides of its extension direction. The second curved side 22 and the third curved side 23 have the same curvature as the third curved side 23, and the curvature of the second curved side 22 is different from that of the first curved side 12; the first grating 40 extends longitudinally, the first grating 40 is arranged between the first curved side 12 and the straight side 13, and is located in the first calibration interval 11; the second grating 50 extends transversely, the second grating 50 is arranged between the second curved side 22 and the third curved side 23, the second grating 50 is located in the second calibration interval 21, and a portion of the first grating 40 and a portion of the second grating 50 intersect in the third calibration interval 30.

[0037] It should be noted that Figure 2 The dotted boxes in FIG. 3 are only used to illustrate the ranges of the first calibration interval 11 , the second calibration interval 21 and the third calibration interval 30 .

[0038] Specifically, the first strip mirror 10 and the first grating 40 together form a calibration area for the longitudinal strip light path. The first grating 40 is arranged along the longitudinal direction, and through its tiny structural intervals, it guides light to form a stable longitudinal strip light path. The first calibration section 11 is used to calibrate the longitudinal strip light path.

[0039] Similarly, the second grating 50 of the second strip-shaped mirror body 20 is arranged in the transverse direction, and through its small structural intervals, a transverse strip light path is generated. The second calibration interval 21 is used to calibrate the transverse strip light path.

[0040] At the intersection of the first grating 40 and the second grating 50, a third calibration section 30 of the grid-like optical path is formed. This area utilizes the combination of the first grating 40 and the second grating 50 to achieve multi-dimensional optical path calibration. The crossed grating structure allows the light to be adjusted and corrected in both the vertical and horizontal directions, ensuring high-precision transmission of light in complex optical path layouts.

[0041] More specifically, the first curved side 12 of the first strip mirror 10 can change the propagation path of light. By adjusting the curvature of the first strip mirror 10, light can be guided more accurately through the calibration area as it passes through the first strip mirror 10. It will be appreciated that the second curved side 22 and third curved side 23 of the second strip mirror 20 function similarly to the first curved side 12.

[0042] Furthermore, the curvature of the first curved side 12 differs from that of the second curved side 22, calibrating the effect of the differently curved mirror edges on the optical path. The synergistic effect of the first curved side 12, the second curved side 22, the third curved side 23, the first grating 40, and the second grating 50 goes beyond simple path adjustment and provides a comprehensive calibration of the light path, significantly improving optical path accuracy. This ensures that light is optimally transmitted even in complex optical path configurations, significantly reducing errors in the laser positioning system and improving overall calibration effectiveness.

[0043] In the technical solution provided by the present invention, a first calibration interval 11, a second calibration interval 21 and a third calibration interval 30 are formed by the first strip mirror body 10 and the second strip mirror body 20, and a combination of the first grating 40 and the second grating 50 is used to realize multi-dimensional optical path calibration in a limited space. The first curved side 12 is combined with the longitudinal grating to calibrate the longitudinal optical path transmission error. The second strip mirror body 20 forms a stable transverse optical path through the second curved side 22, the third curved side 23 and the transverse grating to calibrate the transmission error of the transverse optical path. In the intersection area of ​​the first grating 40 and the second grating 50, that is, the third calibration interval 30, the combination of the longitudinal optical path and the transverse optical path forms a grid-like optical path calibration interval, providing a multi-dimensional optical path calibration capability. The first curved side 12 and the second curved side 22 with different curvatures correct the influence of the edge of the mirror body on the optical path, further improving the accuracy of optical path transmission. Through the synergistic effect of the above-mentioned structures, the utility model can not only meet the calibration requirements of multiple laser light paths through a calibration mirror, but also improve the accuracy and reliability of the overall laser positioning system, and greatly improve the quality of finished products and production efficiency during the shield segment prefabrication process.

[0044] In the embodiment of the present invention, the first grating 40 includes a plurality of first grating bars 41 , one end of each first grating bar 41 abuts against the first curved side 12 , and the other end of each first grating bar 41 abuts against the straight side 13 .

[0045] Specifically, the first grating 40 includes a plurality of first grid bars 41, one end of each first grid bar 41 abuts the first curved side 12, and the other end of each first grid bar 41 abuts the straight side 13. The first grating 40 can provide a stable guiding effect when light passes through. At the same time, the abutment between the straight side 13 and the first grid bars 41 ensures that light can maintain a straight line when passing through the grating. The first grating 40 realizes the calibration process of the light in the first longitudinal calibration section 11 through the arrangement of the plurality of first grid bars 41. By utilizing the light refraction characteristics of the first curved side 12 and the light reflection characteristics of the straight side 13, the light can be stably propagated within the preset path, thereby achieving precise optical path calibration.

[0046] Please continue reading Figure 1In an embodiment of the present invention, the second grating 50 includes a plurality of second grating bars 51 , one end of each second grating bar 51 abuts against the second arc-shaped side 22 , and the other end of each second grating bar 51 abuts against the third arc-shaped side 23 .

[0047] Specifically, when light strikes the points of contact between the second grating bars 51 and the second and third curved sides 22, 23, the light's propagation path is adjusted, maintaining the preset refraction angle in the lateral direction. The interaction between the second and third curved sides 22, 23 ensures that light adapts to the preset refraction angle upon entering the second grating 50. The arrangement of the plurality of second grating bars 51 in the second grating 50 enables light to be calibrated within the second calibration zone 21.

[0048] Please continue reading Figure 1 In an embodiment of the present invention, the first strip-shaped mirror body 10 and the second strip-shaped mirror body 20 intersect to form a T-shaped structure.

[0049] Specifically, the intersection of the first strip-shaped mirror body 10 and the second strip-shaped mirror body 20 is the third calibration interval 30 , and the second calibration interval 21 formed by the second strip-shaped mirror body 20 is located on opposite sides of the third calibration interval 30 .

[0050] More specifically, the third calibration section 30 enables multi-dimensional optical path adjustment. The longitudinal calibration function of the first strip mirror 10 and the lateral calibration function of the second strip mirror 20 combine to form a stable optical path intersection. Second calibration sections 21, located on opposite sides of the third calibration section 30, further expand the control range of the optical path. By extending the second strip mirror 20, multiple second calibration sections 21 provide additional calibration capabilities for the optical path calibration process, meeting the requirements for calibrating complex optical paths.

[0051] In the embodiment of the present invention, the first strip mirror body 10 and the second strip mirror body 20 are integrally formed. This enhances the stability of the overall structure of the calibration mirror. When light passes through the integrally formed first strip mirror body 10 and second strip mirror body 20, a continuous and consistent calibration effect can be achieved without being affected by the connection between the first strip mirror body 10 and the second strip mirror body 20 and causing errors.

[0052] In addition, the integrally formed first strip-shaped mirror body 10 and second strip-shaped mirror body 20 simplifies the manufacturing process of the calibration mirror, reduces the assembly steps, thereby reducing production costs and time, and significantly improves the stability and accuracy of the optical path, thereby improving the reliability of the calibration results of the laser positioning system.

[0053] Please continue reading Figure 1In an embodiment of the present invention, the calibration mirror also includes a first outer frame 60 and a second outer frame 70. The first outer frame 60 is arranged outside the first strip-shaped mirror body 10, and the second outer frame 70 is arranged outside the second strip-shaped mirror body 20. The first outer frame 60 and the second outer frame 70 intersect, and the intersection of the first outer frame 60 and the second outer frame 70 is connected.

[0054] Specifically, the first outer frame 60 and the second outer frame 70 provide stable support and protection for the first strip mirror body 10 and the second strip mirror body 20, respectively, thereby enhancing the durability of the calibration mirror and reducing the adverse effects of the external environment on the optical path calibration process.

[0055] Please continue reading Figure 1 and Figure 2 , and see Figure 3 and Figure 4 The present invention also proposes a laser emitter, which includes a mounting ring 100, a limiting plate 200, a clamping mechanism 300 and the calibration mirror as described above, wherein the limiting plate 200 is arranged on the mounting ring 100, and the limiting plate 200 protrudes along the axial direction of the mounting ring 100 to form a limiting portion 210; the clamping mechanism 300 is arranged on the mounting ring 100, and the clamping mechanism 300 and the limiting plate 200 are arranged at intervals along the circumference of the mounting ring 100, and the clamping mechanism 300 and the limiting portion 210 of the limiting plate 200 jointly form a clamping space 301; the first strip mirror body 10 and the second strip mirror body 20 are both arranged in the clamping space 301, and the clamping mechanism 300 can move between a release position and a clamping position along the radial direction of the mounting ring 100, and move away from or approach the first strip mirror body 10 and the second strip mirror body 20, correspondingly releasing or clamping the first strip mirror body 10 and the second strip mirror body 20.

[0056] Specifically, when the calibration mirror is installed in the clamping space 301, the edge of the calibration mirror is located on the limiting plate 200 and is abutted by the mounting ring 100 to limit the axial displacement of the calibration mirror on the mounting ring 100; the combined action of the clamping mechanism 300 and the limiting portion 210 limits the radial displacement of the calibration mirror on the mounting ring 100. Therefore, the position of the calibration mirror placed in the clamping space 301 is fixed by the limiting plate 200, the mounting ring 100 and the clamping mechanism 300.

[0057] More specifically, the clamping mechanism 300 can move radially along the mounting ring 100 and can be adjusted between a release position away from the calibration mirror and a clamping position close to the calibration mirror, so as to quickly install and disassemble the calibration mirror, ensuring that it is firmly clamped during operation and easy to release during maintenance or replacement.

[0058] It should be noted that the power source for adjusting the clamping mechanism 300 between the release position away from the calibration mirror and the clamping position close to the calibration mirror is manual adjustment or a drive motor in the prior art.

[0059] It should be understood that the specific structure of the calibration mirror refers to the above-mentioned embodiments. Since the present laser transmitter adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, and will not be described in detail here. Specifically, the present laser transmitter ensures the stability and adjustability of the calibration mirror in the laser positioning system through the coordinated action of the limit plate 200 and the clamping mechanism 300, thereby improving the ease of use of the calibration mirror.

[0060] In an embodiment of the present utility model, the clamping mechanism 300 includes a guide column 310, an elastic return member 320 and a clamping plate 330. The clamping plate 330 and the limiting portion 210 of the limiting plate 200 jointly form a clamping space 301; the guide column 310 extends radially along the mounting ring 100, and the guide column 310 is installed on the outer wall of the mounting ring 100. The clamping plate 330 is slidably installed on the guide column 310 and can move between a release position and a clamping position to correspondingly release or clamp the first strip mirror body 10 and the second strip mirror body 20; the elastic return member 320 is sleeved on the guide column 310, and one end of the elastic return member 320 is connected to the clamping plate 330, and the other end of the elastic return member 320 is connected to the mounting ring 100.

[0061] It should be understood that the provision of the elastic reset member 320 greatly enhances the automation function of the clamping mechanism 300. When the operator moves the clamping plate 330 to the release position, the elastic reset member 320 will restore the clamping plate 330 to the clamping position through its elastic properties. This automatic reset function not only reduces the operator's manual intervention and improves work efficiency, but also ensures that the calibration mirror will not fall off due to accidental collisions in the non-clamped state. In addition, the elastic reset member 320 can absorb external shocks or vibrations, further enhancing the stability of the clamping plate 330, so as to effectively avoid the position deviation of the calibration mirror caused by vibration, and ensure the accuracy and stability of the laser light.

[0062] Specifically, the clamping piece 330 and the limiting portion 210 of the limiting piece 200 together form a clamping space 301 for accommodating the calibration mirror. The clamping piece 330 can move between a release position and a clamping position to achieve the release or clamping of the calibration mirror. The guide post 310 extends radially along the mounting ring 100 and is mounted on the outer wall of the mounting ring 100. The clamping piece 330 can be slidably mounted on the guide post 310 to guide the movement of the clamping piece 330 in the radial direction of the mounting ring 100, thereby improving the clamping stability of the calibration mirror. The elastic reset member 320 is sleeved on the guide post 310 and is located between the clamping piece 330 and the mounting ring 100. To provide elastic force, the clamping piece 330 automatically returns to the preset position after release, ensuring that the clamping piece 330 can stably clamp the calibration mirror.

[0063] More specifically, the elastic return member 320 is a spring, one end of which is connected to the side of the clamping piece 330 facing the mounting ring 100, and the other end of which is connected to the outer wall of the mounting ring 100. In this embodiment, the guide post 310 provides a stable sliding path for the clamping piece 330. Combined with the deformation-resetting function of the elastic return member 320, this ensures that the clamping piece 330 can be quickly and reliably moved to the desired position, thereby enhancing the operational convenience and stability of the calibration mirror.

[0064] As an optional implementation of this embodiment, the clamping piece 330 is spaced apart from the first curved side 12 of the first strip mirror body 10, and the clamping piece 330 has a curvature adapted to the first curved side 12. When the clamping piece 330 is manually pulled up from the clamping position to the release position, the spring is in a stretched state, and the first strip mirror body 10 and the second strip mirror body 20 are placed in the clamping space 301, so that the second curved side 22 and the third curved side 23 of the second strip mirror body 20 are respectively abutted against the limiting portions 210 of the two limiting pieces 200; when the clamping piece 330 is released, the spring resets to drive the clamping piece 330 to move from the release position to the clamping position, thereby clamping the first strip mirror body 10 and the second strip mirror body 20 in the clamping space 301, so as to simplify the disassembly and assembly process of the calibration mirror and improve the prefabrication production efficiency of the shield pipe segment.

[0065] Please continue reading Figure 4 In an embodiment of the present invention, a buffer member 400 is provided on both the clamping piece 330 and the limiting portion 210 of the limiting piece 200 facing the calibration mirror.

[0066] It should be noted that the buffer member 400 is a rubber member in the prior art.

[0067] Specifically, the buffer 400 can effectively absorb the impact force between the clamping piece 330 and the calibration mirror, reducing damage caused by collisions during the clamping or releasing process, thereby protecting the calibration mirror and its optical properties. In addition, during the operation of the laser transmitter, vibrations or external shocks may occur, and the buffer 400 can provide additional shock absorption effects to ensure that the calibration mirror always maintains a stable working state. In addition, by using the buffer 400 to provide a soft contact surface during the clamping process, it helps to prevent the calibration mirror from being offset or inaccurately positioned during the clamping process, thereby improving the overall calibration accuracy of the laser positioning system. In addition, the use of the buffer 400 can reduce the wear and tear on the clamping mechanism 300 and the calibration mirror caused by frequent operations, thereby extending the service life.

[0068] In an embodiment of the present invention, there are multiple limiting pieces 200 , which are spaced apart along the circumference of the mounting ring 100 , and the clamping piece 330 is disposed opposite to any limiting piece 200 .

[0069] Specifically, multiple stoppers 200 are distributed along the circumference of the mounting ring 100, providing more uniform support for the calibration mirror when clamping it, ensuring its stable fixation during the clamping process and reducing localized stress concentration. Furthermore, the provision of multiple stoppers 200 allows for more flexible adjustment of the clamping space 301, accommodating calibration mirrors of different types and sizes, thereby enhancing the compatibility of the laser transmitter.

[0070] It should be noted that the relative setting in this embodiment refers to the relative position relationship, including but not limited to a symmetrical relationship. The relative setting may also refer to the setting of the clamping piece 330 relative to the gap between two adjacent limiting pieces 200.

[0071] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A calibration mirror, characterized in that include: A first strip-shaped mirror body, wherein the first strip-shaped mirror body extends longitudinally to form a first calibration section, and two sides of the first strip-shaped mirror body in the extending direction thereof are respectively a first curved side and a straight side; a second strip-shaped mirror body, wherein the second strip-shaped mirror body extends laterally to form a second calibration interval, and a portion of the first calibration interval overlaps with a portion of the second calibration interval to form a third calibration interval; the second strip-shaped mirror body has a second curved side and a third curved side on either side of its extension direction, the second curved side and the third curved side having the same curvature, and the second curved side having a different curvature from the first curved side; a first grating extending in a longitudinal direction, disposed between the first curved side and the straight side, and located in the first calibration interval; The second grating extends in the transverse direction, is arranged between the second arc-shaped side and the third arc-shaped side, is located in the second calibration interval, and a portion of the first grating and a portion of the second grating intersect in the third calibration interval.

2. The calibration mirror according to claim 1, wherein The first grating includes a plurality of first grating bars, one end of each of the first grating bars abuts against the first curved side, and the other end of each of the first grating bars abuts against the straight side.

3. The calibration mirror according to claim 1, wherein The second grating includes a plurality of second grating bars, one end of each of the second grating bars abuts against the second arc-shaped side, and the other end of each of the second grating bars abuts against the third arc-shaped side.

4. The calibration mirror according to claim 1, wherein The first strip-shaped mirror body and the second strip-shaped mirror body intersect to form a T-shaped structure.

5. The calibration mirror according to claim 1, wherein The first strip-shaped mirror body and the second strip-shaped mirror body are integrally formed.

6. The calibration mirror according to any one of claims 1 to 5, characterized in that The calibration mirror also includes a first outer frame and a second outer frame. The first outer frame is arranged outside the first strip-shaped mirror body, and the second outer frame is arranged outside the second strip-shaped mirror body. The first outer frame intersects with the second outer frame, and the intersection of the first outer frame and the second outer frame is connected.

7. A laser transmitter, characterized in that: It includes a mounting ring, a limiting plate, a clamping mechanism and a calibration mirror as described in any one of claims 1 to 6, wherein the limiting plate is arranged on the mounting ring, and the limiting plate forms a limiting portion along the axial protrusion of the mounting ring; the clamping mechanism is arranged on the mounting ring, and the clamping mechanism and the limiting portion of the limiting plate are arranged opposite to each other, and the clamping mechanism and the limiting portion of the limiting plate jointly form a clamping space; the first strip mirror body and the second strip mirror body are both arranged in the clamping space, and the clamping mechanism can move between a release position and a clamping position along the radial direction of the mounting ring, and move away from or approach the first strip mirror body and the second strip mirror body, and correspondingly release or clamp the first strip mirror body and the second strip mirror body.

8. The laser transmitter according to claim 7, wherein: The clamping mechanism includes a guide column, an elastic reset member and a clamping plate, and the clamping plate and the limiting portion of the limiting plate jointly form the clamping space; the guide column extends radially along the mounting ring, and the guide column is installed on the outer wall of the mounting ring; the clamping plate is slidably installed on the guide column and can move between the release position and the clamping position to correspondingly release or clamp the first strip mirror body and the second strip mirror body; the elastic reset member is sleeved on the guide column, and one end of the elastic reset member is connected to the clamping plate, and the other end of the elastic reset member is connected to the mounting ring.

9. The laser transmitter according to claim 8, wherein A buffer is provided on the side of the clamping piece and the limiting portion of the limiting piece facing the calibration mirror.

10. The laser transmitter according to claim 8, characterized in that There are multiple limiting plates, and the multiple limiting plates are arranged at intervals along the circumference of the mounting ring. The clamping plate is arranged opposite to any of the limiting plates.

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