measuring device

Abstract

The application provides a measuring device, which comprises a laser sensing module, a driving shaft and a driven shaft, the extension direction of the driving shaft and the driven shaft is a first direction; the laser sensing module comprises a shell, a laser emitting unit, a first connecting piece and a second connecting piece; the shell and the lower shell enclose a containing cavity; the first lower connecting part and the first upper connecting part are jointly sleeved on the driving shaft and synchronously rotate with the driving shaft; the second lower connecting part and the second upper connecting part are jointly sleeved on the driven shaft and synchronously rotate with the driven shaft; the laser emitting unit is fixedly arranged in the containing cavity and is configured to emit laser along a set emitting direction.

Description

Technical Field

[0001] This application relates to the field of measurement technology, specifically to a measuring device. Background Technology

[0002] Measurement equipment with laser emission function is a type of measurement equipment that can be applied to the construction and use processes of engineering projects such as buildings, bridges, urban rail transit, and tunnels. This type of measurement equipment can use lasers to determine the distance to a target object and measure the displacement of the target object.

[0003] The existing measuring equipment with lasers has a relatively complex structure, and the adjustment of the optical axis of the measuring laser is cumbersome. It is not easy to ensure that the optical axis of the measuring laser overlaps and is perpendicular to the axis of pitch motion, which makes the control of the laser irradiation point less precise and affects the measurement accuracy. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide a measuring device to solve the problem that the optical axis adjustment of the measuring laser in existing measuring devices is relatively cumbersome, and it is not easy to ensure that the optical axis of the measuring laser overlaps and is perpendicular to the axis of pitch motion, which makes the control of the laser irradiation point not precise enough and affects the measurement accuracy.

[0005] The first aspect of this application provides a measuring device, including a laser sensing module, a drive shaft, and a driven shaft, wherein the extension direction of the drive shaft and the driven shaft is a first direction;

[0006] The laser sensing module includes a housing, a laser emitting unit, a first connector, and a second connector;

[0007] The shell encloses an internal cavity;

[0008] The first connector includes a first upper connecting part and a first lower connecting part that are adjustable in a relatively fixed position. The first upper connecting part is fixedly connected to the upper housing along a first direction. The first lower connecting part and the first upper connecting part are sleeved together on the drive shaft and rotate synchronously with the drive shaft.

[0009] The second connector includes a second upper connecting part and a second lower connecting part that are adjustable in a relatively fixed position. The second upper connecting part is fixedly connected to the upper housing along a first direction. The second lower connecting part and the second upper connecting part are sleeved together on the driven shaft and rotate synchronously with the driven shaft.

[0010] The laser emitting unit is fixedly disposed in the internal cavity and is configured to emit laser along a set emission direction.

[0011] In one embodiment of this application, the first upper connecting part and the first lower connecting part are fixedly connected at both ends of the drive shaft by a first adjusting member. The first adjusting member is configured to adjust the relative position between the first upper connecting part and the first lower connecting part by adjusting the distance between the first upper connecting part and the first lower connecting part at both ends of the drive shaft.

[0012] The second upper connecting part and the second lower connecting part are fixedly connected at both ends of the drive shaft by a second adjusting member. The second adjusting member is configured to adjust the relative position between the second upper connecting part and the second lower connecting part by adjusting the distance between the two ends of the drive shaft.

[0013] In one embodiment of this application, the set launch direction is coplanar with and perpendicular to the first direction.

[0014] In one embodiment of this application, the housing includes an upper housing and a lower housing fixedly connected along a second direction, the upper housing and the lower housing together forming an internal cavity, the second direction being perpendicular to the first direction; the first upper connecting portion is fixedly connected to the upper housing along the first direction, and the second upper connecting portion is fixedly connected to the upper housing along the first direction.

[0015] In one embodiment of this application, the end of the drive shaft is located in a mounting groove at the first end of the lower housing, and the end of the driven shaft is located in a mounting groove at the second end of the lower housing.

[0016] In one embodiment of this application, a storage body is also included;

[0017] The chamber body forms an outer cavity, and the laser sensing module is disposed in the outer cavity; the drive shaft passes through the first end of the chamber body; the driven shaft passes through the second end of the chamber body; and the chamber body is fixedly connected to the drive shaft and the driven shaft.

[0018] In one embodiment of this application, the upper housing has a through opening on its top surface opposite to the lower housing;

[0019] The laser sensing module also includes a connecting harness configured to extend from the internal cavity through the through-hole into the external cavity.

[0020] In one embodiment of this application, the laser emitting unit includes a lens that is exposed to the laser body;

[0021] The lower housing includes a laser housing cover that covers the laser body and has a first opening aligned with the lens.

[0022] The laser sensing module also includes an outer frame and a first sealing ring;

[0023] The outer frame is a cylindrical structure that runs through the axis. The first end of the outer frame is connected to the laser body and surrounds the lens in the circumferential direction. The second end of the outer frame is connected to the laser housing cover and is coaxial with the first opening. The inner surface of the laser body, the inner surface of the laser housing cover, and the outer surface of the outer frame together define the laser housing. The inner surface of the outer frame and the surface of the lens define the lens area.

[0024] The first sealing ring is disposed between the end face of the first end of the outer frame and the laser body, and is partially exposed in the lens area.

[0025] In one embodiment of this application, the laser housing cover is connected to the outer surface of the end face of the outer frame near the second end, and an annular protrusion is provided on the surface of the outer frame near the second end, the annular protrusion surrounding the outer frame, and a second sealing ring is provided between the laser housing cover and the annular protrusion.

[0026] In one embodiment of this application, the laser emitting unit is disposed on the lower housing and configured to emit laser light along a set emission direction;

[0027] The measuring device also includes a reference unit, a measuring unit, and an adjustment mechanism.

[0028] The reference unit is configured to mark the set emission direction;

[0029] The measuring unit is movably disposed on the lower housing and configured to acquire the information to be measured along the measuring direction, the information to be measured including the deviation information between the set emission direction and the measuring direction;

[0030] The adjustment mechanism is disposed between the lower housing and the measuring unit, and is configured to adjust the orientation angle of the measuring unit based on the deviation information so that the measuring direction of the measuring unit coincides with the set emission direction.

[0031] In one embodiment of this application, the laser sensing module further includes an elastic element, a focusing drive device, a driving gear, and a driven gear;

[0032] The elastic element includes a first connecting part and a second connecting part, the first connecting part being fixed to the lower housing; the focusing drive device is fixedly connected to the second connecting part and includes a torque output part for outputting torque;

[0033] The driving gear is mounted on the torque output unit in a non-rotating manner; the rotation axis of the driven gear is fixed relative to the lower housing, and 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.

[0034] The elastic element is in an elastic deformation state and applies an elastic force to the driving gear towards the driven gear, so that the driving gear and the driven gear remain engaged.

[0035] In one embodiment of this application, the rotation axis of the driving gear and the rotation axis of the driven gear are parallel; 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.

[0036] In the measuring device of this application, by adjusting the relative fixed positions of the first upper connecting part and the first lower connecting part, and the relative fixed positions of the second upper connecting part and the second lower connecting part, the relative position of the laser sensing module as a whole with respect to the active shaft and the driven shaft can be adjusted. This ensures that the set emission direction of the laser emitting unit is coplanar and perpendicular to the first direction, and that the set emission direction of the laser emitting unit overlaps and is perpendicular to the axis of rotation of the laser sensing module as a whole. This facilitates the measuring device of this application to more accurately control the laser irradiation point and improve measurement accuracy. Attached Figure Description

[0037] Figure 1 A schematic diagram of the overall structure of the measuring device of this application is shown.

[0038] Figure 2 A partial front view of the measuring device of this application is shown.

[0039] Figure 3 A partial perspective view of the measuring device of this application is shown.

[0040] Figure 4 An exploded view of the measuring device provided in this application is shown.

[0041] Figure 5 It shows Figure 4 A schematic diagram of the cross-section of the laser shown.

[0042] Figure 6 for Figure 5 A magnified view of region A in the middle.

[0043] Figure 7 A partial structural schematic diagram of the measuring device provided in this application is shown.

[0044] Figure 8 It shows Figure 12 A schematic diagram of the cross-section of the measuring device shown.

[0045] Figure 9 A schematic diagram of the structure of the laser sensing module provided in this application is shown.

[0046] Figure 10 It shows Figure 9 A schematic diagram of a structure in which the measurement direction does not coincide with the set launch direction.

[0047] Figure 11 A schematic diagram of the transmission part of the measuring device provided in this application is shown.

[0048] Figure 12 It shows Figure 11 A schematic diagram of the transmission part viewed from another perspective.

[0049] Figure 13 A schematic diagram of the structure of the laser sensing module of the measuring device provided in this application is shown.

[0050] Figure 14 A partial structural schematic diagram of the measuring device of this application is shown. Reference numerals:

[0051] 10. Laser sensing module; 11. Laser emitting unit; 112. Lens; 113. Laser housing; 12. Lower housing; 121. Laser housing cover; 1211. First opening; 122. First lower shell; 123. Second lower shell; 124. Third lower shell; 13. Upper housing; 131. Through opening; 14. First connector; 141. First upper connecting part; 142. First lower connecting part; 143. First adjusting part; 15. Second connector; 151. Second upper connecting part; 152. Second lower connecting part; 153. Second adjusting part;

[0052] 16. Measuring unit; 17. Adjustment mechanism; 21. Drive shaft; 22. Driven shaft; 30. Chamber; 31. Outer cavity; 40. Base; 41. First mounting arm; 42. Seat; 43. Second mounting arm; 50. Image sensing module; 61. Outer frame; 611. First end; 612. Second end; 62. First sealing ring; 63. Annular protrusion; 64. Second sealing ring; 80. Reference point; 81. First viewing point; 82. Second viewing point; 83. Eyepiece; 92. Elastic element; 920. Spring; 93. Focusing drive device; 931. Torque output unit; 94. Drive gear; 95. Driven gear; 96. Fixing element. X-First direction; Y-Second direction. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0055] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below. Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0056] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0057] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this application, and similarly, second may also be referred to as first. Depending on the context, the word “if” as used herein may be interpreted as “when”, “in response to a determination”, or “upper”, “lower”, “front”, “back”, “left”, “right”, etc., are used only to indicate the relative positional relationship between related parts, and not to limit the absolute position of these related parts. In this document, “equal”, “same”, etc., are not strict mathematical and / or geometric limitations, and also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, numerical ranges in this document include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0058] like Figures 1 to 3 ,and Figure 14 As shown, this application provides a measuring device, which includes a laser sensing module 10, a drive shaft 21, and a driven shaft 22, as described above. Figure 2 As shown, the extension direction of the drive shaft 21 and the driven shaft 22 is the first direction. It can be understood that when arranging the measuring equipment, in order to adjust the laser emission direction of the laser sensing module 10 vertically, the drive shaft 21 and the driven shaft 22 are usually extended in a horizontal or near-horizontal direction, that is, the first direction is a horizontal or near-horizontal extension direction.

[0059] like Figure 2 and Figure 3 As shown, the laser sensing module 10 includes a housing, a laser emitting unit 11, a first connector 14, and a second connector 15. The housing forms an internal cavity. Specifically, a fixing hole extending in a second direction can be formed on the lower housing 12, and bolts or other fasteners 96 can be used to fix the upper housing 13 and the lower housing 12 together in the second direction.

[0060] like Figure 2 , Figure 3 and Figure 14 As shown, the housing includes an upper housing 13 and a lower housing 12 fixedly connected along a second direction. The upper housing 13 and the lower housing 12 together form an internal cavity, and the second direction is perpendicular to the first direction. Since the upper housing 13 and the lower housing 12 are fixedly connected along the second direction, which is perpendicular to the first direction, this facilitates the installation and relative fixation between the upper housing 13 and the lower housing 12. Furthermore, as... Figure 14As shown, the lower housing 12 is composed of a first lower housing 122, a second lower housing 123, and a third lower housing 124, all fixedly connected together. The second lower housing 123 has a square annular outer shell, and the third lower housing 124 includes a square annular shell and a base plate fixedly disposed at the bottom of the square annular shell. The first lower housing 122 is disposed on the front side of the upper housing 13, the second lower housing 123, and the third lower housing 124, and is fixedly connected to both the upper housing 13 and the third lower housing 124. Figure 3 and Figure 14 As shown, where, Figure 14 Only the structure of the second connector 15 is shown, but the structure of the second connector 15 is similar to that of the first connector 14. The upper housing 13 and the lower housing 12 are fixedly connected along the second direction and together form the internal cavity, with the second direction perpendicular to the first direction. The first connector 14 includes a first upper connecting part 141 and a first lower connecting part 142 with relatively fixed positions adjustable. The first upper connecting part 141 is fixedly connected to the upper housing 13 along the first direction, and the first lower connecting part 142 and the first upper connecting part 141 are together sleeved on the drive shaft 21 and rotate synchronously with the drive shaft 21. The second connector 15 includes a second upper connecting part 151 and a second lower connecting part 152 with relatively fixed positions adjustable. The second upper connecting part 151 is fixedly connected to the upper housing 13 along the first direction, and the second lower connecting part 152 and the second upper connecting part 151 are together sleeved on the driven shaft 22 and rotate synchronously with the driven shaft 22. The laser emitting unit 11 is fixedly disposed in the internal cavity and is configured to emit laser along a set emission direction.

[0061] Thus, during the operation of the measuring device of this application, the drive shaft 21 can drive the laser sensing module 10 to rotate up and down as a whole through the lower housing 12 and the first connector 14. The lower housing 12 and the second connector 15 drive the driven shaft 22 to rotate relative to the other main parts of the measuring device, thereby adjusting the laser emission direction of the laser sensing module 10 as needed. The upper housing 13 and the lower housing 12 of the laser sensing module 10 are subjected to relatively uniform force, thereby effectively extending the working life of the upper housing 13 and the lower housing 12.

[0062] By adjusting the relative fixed positions of the first upper connecting part 141 and the first lower connecting part 142, and the relative fixed positions of the second upper connecting part 151 and the second lower connecting part 152, the overall relative position of the laser sensing module 10 with respect to the active shaft 21 and the driven shaft 22 can be adjusted.

[0063] When the laser emitting unit 11 needs to be replaced, simply disassemble the first connector 14 and the second connector 15 along the first direction, and then remove the upper housing 13 from the lower housing 12 along the second direction to replace the entire laser emitting unit 11. No other structures need to be disassembled, which effectively improves the user's operating experience.

[0064] In addition, when the measuring device of this application is applicable to laser emitting units 11 of different models or sizes, there may be a situation where the upper housing 13 adapted to the laser emitting unit 11 needs to be replaced. The width of the upper housing 13 in the first direction may be greater than the width of the lower housing 12 or smaller than the width of the lower housing 12 in the first direction. In the above cases, only the connecting parts between the first connecting member 14 and the second connecting member 15 and the upper housing 13 need to be replaced, without adjusting other structures, which greatly reduces the equipment cost of the measuring device.

[0065] like Figure 2 As shown, in one embodiment of this application, the emission direction is set to be coplanar and perpendicular to the first direction. That is, by adjusting the relative position of the laser sensing module 10 with respect to the active shaft 21 and the driven shaft 22, it is ensured that the set emission direction of the laser emitting unit 11 is coplanar and perpendicular to the first direction, and the set emission direction of the laser emitting unit 11 overlaps with and is perpendicular to the axis of vertical rotation of the laser sensing module 10. This facilitates the measurement device of this application to more accurately control the laser irradiation point and improve measurement accuracy.

[0066] like Figure 3 As shown, in one embodiment of this application, the measuring device of this application further includes a chamber 30; the chamber 30 surrounds an outer receiving cavity 31, and the laser sensing module 10 is disposed in the outer receiving cavity 31; the drive shaft 21 passes through the first end 611 of the chamber 30; the driven shaft 22 passes through the second end 612 of the chamber 30; and the chamber 30 is fixedly connected to the drive shaft 21 and the driven shaft 22.

[0067] Thus, during the operation of the measuring equipment of this application, the housing 30 can protect the laser sensing module 10, preventing external water, sand, etc., from interfering with the normal operation of the laser sensing module 10. It is understood that, as Figure 3 As shown, the measuring device of this application may also include an image sensing module 50. The image sensing module 50 is fixedly disposed at the bottom of the laser sensing module 10 and is housed together with the laser sensing module 10 in the chamber 30. The image sensing module 50 is mainly used to acquire image information, and the chamber 30 can also prevent external water, sand, etc. from interfering with the normal operation of the image sensing module 50.

[0068] like Figure 2 and Figure 3 As shown, in one embodiment of this application, the first upper connecting part 141 and the first lower connecting part 142 are fixedly connected at both ends of the drive shaft by a first adjusting member 143. The first adjusting member 143 is configured to adjust the relative position between the first upper connecting part 141 and the first lower connecting part 142 by adjusting the distance between the two ends of the drive shaft.

[0069] The second upper connecting part 151 and the second lower connecting part 152 are fixedly connected at both ends of the drive shaft by a second adjusting member 153. The second adjusting member 153 is configured to adjust the relative position between the second upper connecting part 151 and the second lower connecting part 152 by adjusting the distance between the two ends of the drive shaft.

[0070] Specifically, in one embodiment of this application, the first upper connecting part 141 and the first lower connecting part 142 are provided with screw holes at both ends of the drive shaft 21. The first adjusting member 143 consists of two bolts, which are respectively installed in the screw holes of the first upper connecting part 141 and the first lower connecting part 142 at both ends of the drive shaft. In this way, by adjusting the screwing depth of the two bolts in the screw holes on both sides of the first upper connecting part 141 and the first lower connecting part 142, the distance between the two ends of the first upper connecting part 141 and the first lower connecting part 142 can be adjusted. Similarly, in one embodiment of this application, the second upper connecting part 151 and the second lower connecting part 152 are provided with screw holes at both ends of the driven shaft 22. The second adjusting member 153 consists of two bolts, which are respectively installed in the screw holes of the second upper connecting part 151 and the second lower connecting part 152 at both ends of the driven shaft 22. In this way, by adjusting the screwing depth of the two bolts in the screw holes on both sides of the second upper connecting part 151 and the second lower connecting part 152, the distance between the two ends of the second upper connecting part 151 and the second lower connecting part 152 can be adjusted.

[0071] Since the first lower connecting part 142 is relatively fixed to the drive shaft 21, the second lower connecting part 152 is relatively fixed to the driven shaft 22, and the first upper connecting part 141, the second upper connecting part 151 and the upper housing are relatively fixed, the relative fixed positions between the two ends of the first upper connecting part 141 and the first lower connecting part 142 and the two ends of the second upper connecting part 151 and the second lower connecting part 152 can be adjusted. The relative fixed positions between the upper housing 13, the lower housing 12 and the laser emitting unit 11 and the drive shaft 21 and the driven shaft 22 ensure that the set emission direction of the laser emitting unit 11 overlaps with and is perpendicular to the axis of the overall up-and-down rotation of the laser sensing module 10. This makes it easier for the measuring equipment of this application to more accurately control the laser irradiation point and improve the measurement accuracy.

[0072] In another embodiment of this application, the first adjusting member 143 and the second adjusting member 153 can be other structures such as a rack with a snap-fit ​​structure, and the principle is similar, so they will not be described in detail here.

[0073] In one embodiment of this application, the end of the drive shaft 21 is located in the side mounting groove of the lower housing 12, and the end of the driven shaft 22 is located in the side mounting groove of the lower housing 12.

[0074] In this way, the ends of the drive shaft 21 and the driven shaft 22 can be pre-positioned in the side mounting grooves on both sides of the lower housing 12, thereby achieving the pre-positioning of the upper housing 13, the lower housing 12 and the laser emitting unit 11. Then, the first connector 14 and the second connector 15 are used to precisely adjust the specific positions of the upper housing 13, the lower housing 12 and the laser emitting unit 11, ensuring that the set emission direction of the laser emitting unit 11 overlaps with and is perpendicular to the axis of the overall up-and-down rotation of the laser sensing module 10.

[0075] like Figure 3 As shown, in one embodiment of this application, the upper housing 13 has a through-hole 131 on its top surface opposite to the lower housing 12; the laser sensing module 10 also includes a connecting harness (not shown in the figure), which is configured to extend from the inner cavity through the through-hole 131 into the outer cavity 31. The connecting harness is mainly used for exchanging signals with the laser emitting unit 11 and supplying power to the laser emitting unit 11.

[0076] It is understandable that the length and number of laser emitting units 11 vary for different models, and therefore the required space also varies. Therefore, in the measuring device of this application, the connecting wire harness can extend from the inner cavity through the through-hole 131 into the outer cavity 31. When the length of the connecting wire harness is long, the space outside the laser sensing module 10 can be used to store the connecting wire harness; and when the laser sensing module 10 rotates with the drive shaft 21, it can also drive the connecting wire harness to rotate, without dragging the connecting wire harness and avoiding damage to the connecting wire harness.

[0077] Furthermore, such as Figure 1 As shown, in one embodiment of this application, the measuring device further includes a base 40 and a driving device. The base 40 includes a first mounting arm 41, a seat 42, and a second mounting arm 43 integrally connected, with a mounting position formed between the first mounting arm 41 and the second mounting arm 43. The chamber 30 and the laser sensing module 10 are rotatably disposed in the mounting position. The first end 611 of the laser sensing module 10 is rotatably connected to the first mounting arm 41 via a drive shaft 21, and the second end 612 of the laser sensing module 10 is rotatably connected to the second mounting arm 43 via a driven shaft 22. The driving device is disposed in the first mounting arm 41 and is configured to drive the mounting cavity to rotate relative to the base 40 via the drive shaft 21.

[0078] Therefore, during the operation of the measuring device of this application, the driving device set in the first mounting arm 41 drives the chamber 30 and the laser sensing module 10 to rotate up and down relative to the base 40 through the drive shaft 21, thereby adjusting the laser emission direction of the laser sensing module 10 as needed. Compared with the existing measuring devices, the measuring device of this application has a compact overall structure and can effectively save the overall space occupied by the measuring device.

[0079] like Figure 4 and Figure 5 As shown, in one embodiment of this application, the laser emitting unit 11 includes a lens 112 and a laser housing 113, with the lens 112 exposed at the front end of the laser housing 113. The lower housing 12 includes a laser cover 121, and the laser emitting unit 11 is disposed inside the laser cover 121 of the lower housing 12. The relative positions of the laser emitting unit 11 and the laser cover 121 are fixed by a support rod or other structure. The laser sensing module 10 also includes an outer frame 61 and a first sealing ring 62; the outer frame 61 extends along the axial direction and has a hollow cylindrical structure. The outer frame 61 has a first end 611 along the axial direction, and the first end 611 of the outer frame 61 is connected to the laser emitting unit 11. Specifically, the laser housing 113 is connected to the laser emitting unit 11. The first end 611 of the outer frame 61 surrounds the lens 112 circumferentially. The laser emitted by the lens 112 can be emitted from the second end 612 of the outer frame 61. The second end 612 of the outer frame 61 is connected to the laser housing 121, which has a first opening 1211 coaxially aligned with the outer frame 61. The laser emitting unit 11, the inner surface of the laser housing 121, and the outer surface of the outer frame 61 together define the laser housing, which is used to house multiple electronic units. The inner surface of the outer frame 61 and the surface of the lens 112 define the lens 112 area.

[0080] like Figure 6 As shown, the first sealing ring 62 is disposed between the end face of the first end 611 of the outer frame 61 and the laser emitting unit 11, and is partially exposed in the lens 112 area. It is used to block water vapor from penetrating from the lens 112 area into the laser housing.

[0081] This application exposes the first sealing ring 62 to the lens 112 area, placing it at the outermost edge of the gap between the laser emitting unit 11 and the outer frame 61, allowing the sealing interface to directly contact the external environment. This design, by reconfiguring the spatial layout of the first sealing ring 62, reduces or even eliminates areas prone to water accumulation in the gap between the laser emitting unit 11 and the outer frame 61. When corrosive liquids intrude along the gap, they first contact the first sealing ring 62 and are directly blocked, preventing moisture retention within the gap. Simultaneously, this exposed layout allows operators to directly observe the surface condition of the first sealing ring 62, facilitating the removal of surface moisture through routine maintenance. This significantly reduces the time it is exposed to corrosive media, improving the reliability of the laser and extending its service life.

[0082] like Figure 7 and Figure 8 As shown, the second end 612 of the outer frame 61 extends from the first opening 1211 of the laser housing 121 and beyond the surface of the laser housing 121. An annular protrusion 63 is formed on the outer surface of the outer frame 61, surrounding the outer frame 61 in the circumferential direction. There is a gap between the end face of the annular protrusion 63 facing the laser housing 121 and the surface of the laser housing 121. A second sealing ring 64 is disposed in this gap. The two axial end faces of the second sealing ring 64 are respectively in close contact with the axial end faces of the annular protrusion 63 and the surface of the laser housing 121. The annular protrusion 63 applies a clamping force to the second sealing ring 64 through the threaded connection between the outer frame 61 and the connecting plate to ensure the sealing of the gap between the outer frame 61 and the laser housing 121.

[0083] like Figure 9 As shown, in one embodiment of this application, the laser sensing module 10 includes a lower housing 12, a laser emitting unit 11, a reference reference unit 80, a measuring unit 16, and an adjustment mechanism 17. The laser emitting unit 11 is disposed on the lower housing 12 and configured to emit light along a set direction (…). Figure 9 and Figure 10 (Indicated by arrow D1) The laser is emitted. The reference reference unit 80 is configured to mark the set emission direction. The measuring unit 16 is movably disposed on the lower housing 12 and is configured to emit a laser along the measuring direction (…). Figure 9 and Figure 10 (Indicated by arrow D2) Acquire the information to be measured, which includes the deviation information between the set emission direction and the measurement direction. The adjustment mechanism 17 is disposed between the lower housing 12 and the measurement unit 16, and is configured to adjust the orientation angle of the measurement unit 16 based on the deviation information so that the measurement direction of the measurement unit 16 coincides with the set emission direction.

[0084] That is, Figure 10As shown, there is a deviation between the set emission direction D1 of the laser emitting unit 11 and the measurement direction D2 of the measuring unit 16; therefore, the orientation angle of the measuring unit 16 can be adjusted according to the deviation information between the set emission direction and the measurement direction so that the measurement direction of the measuring unit 16 coincides with the set emission direction, i.e. Figure 9 The situation is shown below.

[0085] The lower housing 12 provides support for the various components of the laser sensing module 10. The lower housing 12 not only provides housing space for the various components, but also allows each component to be directly or indirectly fixed to the lower housing 12.

[0086] like Figure 9 As shown, in one embodiment of this application, the reference reference unit 80 may include, for example, a first visible point 81 and a second visible point 82, the line connecting the first visible point 81 and the second visible point 82 coinciding with the set emission direction of the laser emitting unit 11. The first visible point 81 and the second visible point 82 may be the intersection of at least two visible line segments; determining the first visible point 81 and the second visible point 82 by the intersection of at least two visible line segments is more convenient and accurate. The reference reference unit 80 may also include, for example, a visible straight line segment coinciding with the set direction of the laser emitting unit 11. The reference reference unit 80 may also be a marker of any other color, shape, and size, as long as it can accurately mark the set emission direction of the laser emitting unit 11.

[0087] The measurement unit 16 may be, for example, an imaging device capable of performing image observation along the measurement direction. The measurement unit 16 may include a circuit board for transmitting image observation information to external devices.

[0088] The laser sensing module 10 provided in this application, by setting an adjustment mechanism 17, makes the orientation angle of the measuring unit 16 adjustable, effectively solving the problem that the measuring direction of the measuring unit 16 does not coincide with the set emission direction of the laser emitting unit 11 due to processing errors and assembly errors.

[0089] In some embodiments, such as Figure 9 and Figure 10As shown, when the reference reference unit 80 includes a first viewing point 81 and a second viewing point 82, and the line connecting the first viewing point 81 and the second viewing point 82 coincides with the set emission direction of the laser emitting unit 11, the laser sensing module 10 also includes an eyepiece 83. The eyepiece 83 is disposed between the laser emitting unit 11 and the measuring unit 16, and its axis coincides with the set emission direction, so that the measuring unit 16 can observe the image along the measuring direction through the eyepiece 83. When the measuring unit 16 observes along the measuring direction through the eyepiece 83, the information to be measured includes the observed image information along the measuring direction. To provide an adjustment reference and basis for the orientation angle of the measuring unit 16, the observed image information includes the first viewing point 81 and the second viewing point 82. When the first viewing point 81 and the second viewing point 82 in the observed image information do not coincide, it indicates that the measuring direction does not coincide with the line connecting the first viewing point 81 and the second viewing point 82, that is, the measuring direction does not coincide with the set emission direction. The adjustment mechanism 17 is configured to adjust the orientation angle of the measurement unit 16 based on the relative position of the first viewpoint 81 and the second viewpoint 82 in the observed image information until the first viewpoint 81 and the second viewpoint 82 in the observed image information coincide, so that the measurement direction of the measurement unit 16 coincides with the set emission direction.

[0090] Specifically, the first viewpoint 81 can be set on the beam splitter (not shown) of the laser emitting unit 11, and the second viewpoint 82 can be set on the eyepiece 83. The adjustment mechanism 17 can automatically adjust the orientation angle of the measuring unit 16 based on the relative positions of the first viewpoint 81 and the second viewpoint 82 in the observed image information until the first viewpoint 81 and the second viewpoint 82 in the observed image information coincide. Alternatively, the operator can adjust the orientation angle of the measuring unit 16 using the adjustment mechanism 17 based on the relative positions of the first viewpoint 81 and the second viewpoint 82 in the observed image information until the first viewpoint 81 and the second viewpoint 82 in the observed image information coincide.

[0091] like Figure 11 and Figure 12 As shown, in one embodiment of this application, the laser sensing module 10 further includes an elastic element 92, a focusing drive device 93, a driving gear 94, and a driven gear 95. The elastic element 92 includes a first connecting portion and a second connecting portion, the first connecting portion being fixed to the lower housing 12. The focusing drive device 93 is fixedly connected to the second connecting portion and includes a torque output portion 931 for outputting torque. The driving gear 94 is mounted anti-rotatingly on the torque output portion 931. The rotation axis of the driven gear 95 is fixed relative to the lower housing 12. The elastic element 92, in an elastically deformed state, applies an elastic force to the driving gear 94 towards the driven gear 95, causing the driving gear 94 and the driven gear 95 to remain meshed.

[0092] like Figure 13 As shown, the laser sensing module 10 of the measuring device may include an eyepiece 83, 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 83 needs to be adjusted accordingly to keep the image in the eyepiece 83 clear. Therefore, the laser sensing module 10 may include a focusing mechanism to adjust the focal length of the eyepiece 83. A driven gear 95 may be connected to the focusing mechanism of the laser sensing module 10, and the rotation of the driven gear 95 drives the focusing mechanism to focus the laser sensing module 10. The focusing drive device 93 may, for example, drive the focusing mechanism to adjust the focal length of the eyepiece 83 after receiving a command, thereby realizing the automatic focusing of the laser sensing module 10. The lower housing 12 is the outer shell of the laser sensing module 10.

[0093] The elastic element 92 refers to a component that can generate elastic force through elastic deformation, such as a spring or sheet 920. When in an elastically deformed state, the elastic element 92 first applies elastic force to the focusing drive device 93 through the second connecting part. Since the driving gear 94 is mounted anti-rotatingly on the torque output part 931 of the focusing drive device 93, the elastic force is transmitted to the driving gear 94 through the torque output part 931 of the focusing drive device 93. Because the direction of the elastic force is towards the driven gear 95, the driving gear 94 generates pressure towards the driven gear 95 at the meshing point with the driven gear 95, thus maintaining meshing with the driven gear 95.

[0094] Since the first connecting portion of the elastic element 92 is fixed to the lower housing 12, and the rotation axis of the driven gear 95 is fixed relative to the lower housing 12, the position of the second connecting portion of the elastic element 92 can change relative to the rotation axis of the driven gear 95 during transmission. Because the focusing drive device 93 is fixedly connected to the second connecting portion, and the driving gear 94 is mounted anti-rotatingly on the torque output portion 931 of the focusing drive device 93, the relative positions of the second connecting portion, the focusing drive device 93, and the rotation axes of the driving gear 94 will not change. If the position of the rotation axis of the driving gear 94 relative to the rotation axis of the driven gear 95 changes, it will cause the positions of the focusing drive device 93 and the second connecting portion relative to the rotation axis of the driven gear 95 to change. Therefore, when the driven gear 95 seizes up, the driving gear 94 can be bounced away from the driven gear 95 relative to it, thus continuing to rotate to protect the focusing drive device 93.

[0095] The measuring device provided in this application applies an elastic force to the driving gear 94 by having the elastic element 92 in an elastically deformed state, thereby keeping the driving gear 94 and the driven gear 95 meshed. On the one hand, this avoids gaps between the driving gear 94 and the driven gear 95 during transmission, which would affect transmission accuracy. On the other hand, it makes the elastic force of the elastic element 92 controllable, thus avoiding the problem that if the elastic force of the elastic element 92 is too small, gaps will still appear between the driving gear 94 and the driven gear 95 during transmission, and if the elastic force of the elastic element 92 is too large, the driving gear 94 will not be able to separate from the driven gear 95 when the driven gear 95 is locked.

[0096] It should be noted that the dimensions of the driving gear 94 and the driven gear 95 can be the same or different, as long as they can achieve transmission through meshing. For example, when the dimension of the driven gear 95 is fixed, the dimension of the driving gear 94 can be smaller than that of the driven gear 95, thereby saving space. Furthermore, there can be various angles between the rotation axis of the driving gear 94 and the rotation axis of the driven gear 95. For example, the rotation axis of the driving gear 94 can be set to be parallel or perpendicular to the rotation axis of the driven gear 95 as needed.

[0097] In some embodiments, the rotation axis of the driving gear 94 and the rotation axis of the driven gear 95 are parallel. For example... Figure 12 As shown, in a plan view perpendicular to the rotation axis of the driving gear 94, 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 94 and the driven gear 95 (indicated by dashed line). In this plan view, the rotation axes of the driving gear 94 and the driven gear 95 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 94 and the driven gear 95 from sliding relative to each other tangentially during transmission due to excessive tangential force, thereby better ensuring that the driving gear 94 and the driven gear 95 remain meshed during transmission.

[0098] In some embodiments, such as Figure 11 and Figure 12As shown, the elastic element 92 is a flat sheet 920. The first connecting portion and the second connecting portion are spaced apart along the length L of the sheet 920. The sheet 920 maintains its elastic deformation state by bending in its thickness direction D. That is, the relative displacement of the first connecting portion and the second connecting portion in the thickness direction D of the sheet 920 causes the sheet 920 to bend in the thickness direction D, thereby generating an elastic force. After the sheet 920 bends in its thickness direction D, the line connecting the rotation axis of the driving gear 94 and the rotation axis of the driven gear 95 can be substantially parallel to the thickness direction D of the sheet 920, for example, the included angle between them is less than 5°, thereby ensuring that the direction of application of the elastic force is collinear with the line connecting the rotation axis of the driving gear 94 and the rotation axis of the driven gear 95. On the one hand, the spring 920 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 920 has a large surface area, it can provide a large contact area when the spring 920 is fixed to the lower housing 12 or when the fastener 96 is fixed to the spring 920, thereby improving the assembly stability between the spring 920 and other components.

[0099] The first connecting portion of the elastic element 92 can be fixed to the lower housing 12 in various ways, such as by using screws or other fasteners. However, if there are machining errors and / or assembly errors, the elastic force generated by the spring 920 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 92 can be changed by adjusting the relative distance between the first connecting portion and the second connecting portion along the direction of application of the elastic force, thereby adjusting the elastic force. Since the position of the second connecting portion relative to the lower housing 12 remains fixed when the driving gear 94 and the driven gear 95 are meshed, the first connecting portion can be moved relative to the second connecting portion by adjusting the distance between the first connecting portion and the lower housing 12, thereby changing the elastic deformation of the elastic element 92 to adjust the elastic force. The spring 920 can be fixed directly using the housing of the laser sensing module 10, eliminating the need for an additional lower housing 12, thus saving materials and improving production efficiency.

[0100] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

[0101] Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this application is defined by the appended claims.

Claims

1. A measuring device, characterized in that, It includes a laser sensing module (10), a drive shaft (21) and a driven shaft (22), wherein the extension direction of the drive shaft (21) and the driven shaft (22) is a first direction; The laser sensing module (10) includes a housing, a laser emitting unit (11), a first connector (14), and a second connector (15); The housing forms an internal cavity; the first connector (14) includes a first upper connector (141) and a first lower connector (142) with relatively fixed positions adjustable. The first lower connector (142) and the first upper connector (141) are sleeved together on the drive shaft (21) and rotate synchronously with the drive shaft (21); The second connector (15) includes a second upper connector (151) and a second lower connector (152) that are relatively fixed and adjustable. The second lower connector (152) and the second upper connector (151) are together sleeved on the driven shaft (22) and rotate synchronously with the driven shaft (22). The laser emitting unit (11) is fixedly disposed in the internal cavity and configured to emit laser along a set emission direction.

2. The measuring device according to claim 1, characterized in that, The first upper connecting part (141) and the first lower connecting part (142) are fixedly connected at both ends of the drive shaft by a first adjusting member (143). The first adjusting member (143) is configured to adjust the relative position between the first upper connecting part (141) and the first lower connecting part (142) by adjusting the distance between the first upper connecting part (141) and the first lower connecting part (142) at both ends of the drive shaft. The second upper connecting part (151) and the second lower connecting part (152) are fixedly connected at both ends of the drive shaft by a second adjusting member (153). The second adjusting member (153) is configured to adjust the relative position between the second upper connecting part (151) and the second lower connecting part (152) by adjusting the distance between the second upper connecting part (151) and the second lower connecting part (152) at both ends of the drive shaft.

3. The measuring device according to claim 1, characterized in that, The set launch direction is coplanar with and perpendicular to the first direction.

4. The measuring device according to claim 1, characterized in that, The housing includes an upper housing (13) and a lower housing (12) fixedly connected along a second direction. The upper housing (13) and the lower housing (12) together form an internal cavity. The second direction is perpendicular to the first direction. The first upper connecting part (141) is fixedly connected to the upper housing (13) along the first direction, and the second upper connecting part (151) is fixedly connected to the upper housing (13) along the first direction.

5. The measuring device according to claim 4, characterized in that, The end of the drive shaft (21) is located in the side mounting groove of the lower housing (12), and the end of the driven shaft (22) is located in the side mounting groove of the lower housing (12).

6. The measuring device according to claim 4, characterized in that, It also includes the storage compartment (30); The chamber (30) forms an outer cavity (31), and the laser sensing module (10) is disposed in the outer cavity (31); the drive shaft (21) passes through the first end (611) of the chamber (30); the driven shaft (22) passes through the second end (612) of the chamber (30); and the chamber (30) is fixedly connected to the drive shaft (21) and the driven shaft (22).

7. The measuring device according to claim 6, characterized in that, The upper shell (13) has a through opening (131) on its top surface away from the lower shell (12); The laser sensing module (10) also includes a connecting harness configured to extend from the content cavity through the through-port (131) into the outer receiving cavity (31).

8. The measuring device according to any one of claims 1 to 7, characterized in that, The laser emitting unit (11) includes a lens (112) exposed to the laser body; The lower housing (12) includes a laser housing cover (121) that covers the laser body. The laser housing cover (121) has a first opening (1211) that is aligned with the lens (112). The laser sensing module (10) also includes an outer frame (61) and a first sealing ring (62); The outer frame (61) is a cylindrical structure that runs through the axis. The first end (611) of the outer frame (61) is connected to the laser body and surrounds the lens (112) in the circumferential direction. The second end (612) of the outer frame (61) is connected to the laser housing cover (121) and is coaxial with the first opening (1211). The inner surface of the laser body, the laser housing cover (121), and the outer surface of the outer frame (61) together define the laser housing. The inner surface of the outer frame (61) and the surface of the lens (112) define the lens (112) area. The first sealing ring (62) is disposed between the end face of the first end (611) of the outer frame (61) and the laser body, and is partially exposed in the lens (112) area.

9. The measuring device according to any one of claims 1 to 7, characterized in that, The laser emitting unit (11) is disposed on the lower housing (12); The measuring device also includes a reference unit (80), a measuring unit (16), and an adjustment mechanism (17). The reference reference unit (80) is configured to mark the set emission direction; The measuring unit (16) is movably disposed on the lower housing (12) and configured to acquire the information to be measured along the measuring direction, the information to be measured including the deviation information between the set emission direction and the measuring direction; The adjustment mechanism (17) is disposed between the lower housing (12) and the measuring unit (16), and is configured to adjust the orientation angle of the measuring unit (16) based on the deviation information so that the measuring direction of the measuring unit (16) coincides with the set emission direction.

10. The measuring device according to any one of claims 1 to 7, characterized in that, The laser sensing module (10) also includes an elastic element (92), a focusing drive device (93), a drive gear (94), and a driven gear (95); The elastic element (92) includes a first connecting part and a second connecting part, the first connecting part being fixed to the lower housing (12); the focusing drive device (93) is fixedly connected to the second connecting part and includes a torque output part (931) for outputting torque; The drive gear (94) is mounted on the torque output unit (931) in a non-rotating manner; the rotation axis of the driven gear (95) is fixed relative to the lower housing (12), and the driven gear (95) is connected to the focusing mechanism of the laser sensing module (10) in a transmission connection. The rotation of the driven gear (95) drives the focusing mechanism to focus the laser sensing module (10). The elastic element (92) is in an elastic deformation state and applies an elastic force to the driving gear (94) towards the driven gear (95), so that the driving gear (94) and the driven gear (95) remain engaged.

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