Device for improving deformation monitoring precision of laser range finder
By designing a device including a shell, threaded hole and groove, fixing the laser rangefinder and connecting it with the device to be monitored, the positioning problem of the laser rangefinder when monitoring the convergence of the clearance and vertical displacement of the top of the structure is solved, and monitoring accuracy and data continuity are improved.
Patent Information
- Application Number
- CN202421997223.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-16
AI Technical Summary
When monitoring the convergence of the clearance and vertical displacement of the top of the structure, it is difficult to accurately locate, resulting in low monitoring accuracy, and the bottom marks are prone to disappear, making the bottom vertical displacement unable to be measured.
A device including a shell, threaded hole and groove is designed, and the laser rangefinder is fixed in the first groove of the shell through screws to ensure consistent positioning; at the same time, the shell is fixed with the device to be monitored by screws to ensure that the vertical displacement of the top and bottom can be measured.
Improve the monitoring accuracy of the laser rangefinder, reduce monitoring errors, and ensure data continuity and accuracy, especially when monitoring at the bottom, avoid data loss due to the disappearance of markers.
Smart Images
Figure CN222938466U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of laser monitoring, and particularly relates to a device for improving the deformation monitoring accuracy of a laser rangefinder. Background Art
[0002] At present, in subway tunnel monitoring and various structural deformation monitoring, for the convergence of the clearance and the vertical displacement at the top of the structure, high-precision total stations or laser rangefinders are used for monitoring. Compared with laser rangefinders, using total stations increases the centering error and aiming error, so laser rangefinders are mostly used; for the monitoring site of laser rangefinders, marking methods such as marker pens and paints are often adopted to mark the current monitoring position, and then the instrument is placed at the marked position again for monitoring, and the variable is calculated by comparing with the previous time; however, when using a laser rangefinder to monitor the convergence of the clearance and the vertical displacement at the top of the structure, after making the mark, it is very difficult to ensure that the position placed next time is the same as the previous time, and its data cannot reflect the actual change; for the marks at the bottom, due to factors such as water flow scouring and worker trampling, the marks will disappear and the vertical displacement at the bottom cannot be measured. Content of the Utility Model
[0003] The purpose of the utility model is to provide a device for improving the deformation monitoring accuracy of a laser rangefinder, so as to solve the technical problem that it is difficult to position the laser rangefinder resulting in low monitoring accuracy, and achieve the purpose of positioning the laser rangefinder and thus improving the monitoring accuracy.
[0004] To solve the above technical problem, the utility model provides a device for improving the deformation monitoring accuracy of a laser rangefinder, including: a housing, a first groove is opened in the middle of the housing, and the first groove penetrates through the top end of the housing;
[0005] A first threaded hole and a second threaded hole are opened at the top end of the housing, the first threaded hole is arranged at one end of the housing, the second threaded hole is arranged at one side of the housing, and both the first threaded hole and the second threaded hole communicate with the first groove;
[0006] A third groove is opened at the bottom end of the housing, and the third groove penetrates through the bottom end and one end of the housing;
[0007] The housing is further provided with a second groove, the second groove penetrates through one end of the housing, the second groove is arranged at the top of the third groove, and the second groove communicates with the third groove; the second groove and the third groove are arranged below the first threaded hole;
[0008] Screws are placed inside the second groove and the third groove.
[0009] Further, the length of the third groove is 14 mm to 14.5 mm, the width of the third groove is 8 mm to 8.5 mm, and the height of the third groove is 2.4 mm to 2.5 mm.
[0010] Further, the length of the second groove is 20 mm to 20.5 mm, the width of the second groove is 20 mm to 20.5 mm, and the height of the second groove is 3 mm to 3.5 mm.
[0011] Further, the screw includes a head and a shank, and the bottom end of the head is connected to the top end of the shank;
[0012] The diameter of the head is 18 mm to 22 mm, and the thickness of the head is 2 mm to 4 mm; the diameter of the shank is 6 mm to 10 mm, and the length of the shank is 28 mm to 32 mm;
[0013] The head is placed in the second groove, and the shank is placed in the third groove.
[0014] Further, the screw includes a first head, a second head and a shank. The first head is provided at the top end of the second head, and the top end of the shank penetrates through the second head and is connected to the bottom end of the first head;
[0015] The diameters of the first head and the second head are 18 mm to 22 mm, and the thicknesses of the first head and the second head are 2 mm to 4 mm;
[0016] The diameter of the shank is 6 mm to 10 mm, the length of the shank is 28 mm to 32 mm, and the distance between the first head and the second head is 2 mm to 3 mm;
[0017] The first head is placed in the second groove, the top end of the shank is placed in the third groove, and the second head is located at the bottom end of the third groove.
[0018] Further, the length of the housing is 68 mm to 70 mm, the width of the housing is 38 mm to 40 mm, and the height of the housing is 16 mm to 20 mm.
[0019] Further, the length of the first groove is 61 mm to 65 mm, the width of the first groove is 31 mm to 35 mm, and the height of the first groove is 8 mm to 10 mm.
[0020] Further, the first threaded hole and the second threaded hole are provided in the middle of the first groove, and the diameters of the first threaded hole and the second threaded hole are 5 mm to 7 mm;
[0021] Screws are detachably arranged inside the first threaded hole and the second threaded hole.
[0022] Furthermore, the screws penetrate through the first threaded hole and the second threaded hole, and the screws are in threaded connection with the first threaded hole and the second threaded hole.
[0023] The top diameter of the screw is 8 mm to 10 mm, and the bottom diameter of the screw is 5 mm to 7 mm.
[0024] The beneficial effects of the present utility model are as follows:
[0025] 1. By threadedly connecting the screws with the first threaded hole and the second threaded hole, the laser rangefinder is fixed in the first groove, so that when the laser rangefinder monitors the vertical displacement at the top, it is in the same position as the previous placement position, reducing the monitoring error.
[0026] 2. By placing the screws into the second groove and the third groove, the screws are fixed to the device to be monitored, and then the housing is fixed to the device. The vertical displacement at the top and the vertical displacement at the bottom can be measured through the screws and the laser rangefinder, maintaining the continuity of the monitoring data.
[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, provides detailed descriptions as follows. Description of the Drawings
[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0029] Figure 1 is a schematic structural diagram of a device for improving the deformation monitoring accuracy of a laser rangefinder according to the present utility model;
[0030] Figure 2 is Figure 1 another perspective view of;
[0031] Figure 3 is a schematic structural diagram of the screw according to the present utility model;
[0032] Figure 4 is a schematic structural diagram of the single-layer head screw according to the present utility model;
[0033] Figure 5 is a schematic structural diagram of the double-layer head screw according to the present utility model.
[0034] In the figure:
[0035] 1. Housing; 11. First groove; 12. Second groove; 13. Third groove;
[0036] 2. Screw; 21. First threaded hole; 22. Second threaded hole;
[0037] 3. Screw; 31. First nail head; 32. Second nail head; 33. Nail head; 34. Nail rod. Detailed implementation mode
[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0039] Embodiment 1:
[0040] As Figures 1 to 4 shown, a device for improving the deformation monitoring accuracy of a laser rangefinder includes: a housing 1. A first groove 11 is provided in the middle of the housing 1, and the first groove 11 penetrates through the top end of the housing 1. The length of the housing 1 is 69 mm, the width of the housing 1 is 39 mm, and the height of the housing 1 is 18 mm. The length of the first groove 11 is 63 mm, the width of the first groove 11 is 33 mm, and the height of the first groove 11 is 10 mm. The distance between the housing 1 and the first groove 11 is 3 mm, so the wall thickness of the housing 1 is 3 mm.
[0041] As Figure 2 shown, a first threaded hole 21 and a second threaded hole 22 are provided at the top end of the housing 1. The first threaded hole 21 is provided at one end of the housing 1, and the second threaded hole 22 is provided on one side of the housing 1. Both the first threaded hole 21 and the second threaded hole 22 communicate with the first groove 11. The first threaded hole 21 and the second threaded hole 22 are provided in the middle of the first groove 11, and the diameters of the first threaded hole 21 and the second threaded hole 22 are 6 mm. A first threaded hole 21 is provided on the front surface of the housing 1, and a second threaded hole 22 is provided on the right side surface of the housing 1. The first threaded hole 21 and the second threaded hole 22 are located at the middle height of the first groove 11, and the first threaded hole 21 and the second threaded hole 22 penetrate through the housing 1. As Figure 3As shown in the figure, screws 2 are detachably arranged inside the first threaded hole 21 and the second threaded hole 22; the screws 2 penetrate through the first threaded hole 21 and the second threaded hole 22, and the screws 2 are threadedly connected to the first threaded hole 21 and the second threaded hole 22; the top diameter of the screw 2 is 10 mm, the bottom diameter of the screw 2 is 6 mm, and the bottom end of the screw 2 is connected to the first threaded hole 21 and the second threaded hole 22 to fix the laser rangefinder.
[0042] A third groove 13 is provided at the bottom end of the housing 1, and the third groove 13 penetrates through the bottom end and one end of the housing 1; the length of the third groove 13 is 14.1 mm, the width of the third groove 13 is 8.1 mm, and the height of the third groove 13 is 2.45 mm. The housing 1 is also provided with a second groove 12, and the second groove 12 penetrates through one end of the housing 1. The second groove 12 is provided at the top of the third groove 13, and the second groove 12 communicates with the third groove 13; the second groove 12 and the third groove 13 are provided below the first threaded hole 21; the length of the second groove 12 is 20.1 mm, the width of the second groove 12 is 20.1 mm, and the height of the second groove 12 is 3.1 mm.
[0043] As Figure 4 shown in the figure, a screw 3 is placed inside the second groove 12 and the third groove 13. The screw 3 includes: a screw head 33 and a screw rod 34, and the bottom end of the screw head 33 is connected to the top end of the screw rod 34; the diameter of the screw head 33 is 20 mm, and the thickness of the screw head 33 is 3 mm; the diameter of the screw rod 34 is 8 mm, and the length of the screw rod 34 is 30 mm; the screw head 33 is placed inside the second groove 12, the screw rod 34 is placed inside the third groove 13, and the screw rod 34 extends to the outside of the housing 1.
[0044] Embodiment 2:
[0045] As Figures 1 to 5 shown in the figure, a device for improving the deformation monitoring accuracy of a laser rangefinder includes: a housing 1. A first groove 11 is provided in the middle of the housing 1, and the first groove 11 penetrates through the top end of the housing 1; the length of the housing 1 is 69 mm, the width of the housing 1 is 39 mm, and the height of the housing 1 is 18 mm; the length of the first groove 11 is 63 mm, the width of the first groove 11 is 33 mm, and the height of the first groove 11 is 10 mm. The distance between the housing 1 and the first groove 11 is 3 mm, so the wall thickness of the housing 1 is 3 mm.
[0046] As Figure 2As shown in the figure, the top end of the housing 1 is provided with a first threaded hole 21 and a second threaded hole 22. The first threaded hole 21 is provided at one end of the housing 1, and the second threaded hole 22 is provided on one side of the housing 1. Both the first threaded hole 21 and the second threaded hole 22 communicate with the first groove 11; the first threaded hole 21 and the second threaded hole 22 are provided in the middle of the first groove 11, and the diameters of the first threaded hole 21 and the second threaded hole 22 are 6 mm; the front surface of the housing 1 is provided with the first threaded hole 21, and the right side surface of the housing 1 is provided with the second threaded hole 22. The first threaded hole 21 and the second threaded hole 22 are located at the middle height of the first groove 11, and the first threaded hole 21 and the second threaded hole 22 penetrate through the housing 1. As Figure 3 shown, screws 2 are detachably arranged inside both the first threaded hole 21 and the second threaded hole 22; the screws 2 penetrate through the first threaded hole 21 and the second threaded hole 22, and the screws 2 are threadedly connected with the first threaded hole 21 and the second threaded hole 22; the top diameter of the screw 2 is 10 mm, the bottom diameter of the screw 2 is 6 mm, and the bottom end of the screw 2 is connected with the first threaded hole 21 and the second threaded hole 22 to fix the laser rangefinder.
[0047] The bottom end of the housing 1 is provided with a third groove 13, and the third groove 13 penetrates through the bottom end of the housing 1 and one end of the housing 1; the length of the third groove 13 is 14.1 mm, the width of the third groove 13 is 8.1 mm, and the height of the third groove 13 is 2.45 mm. The housing 1 is also provided with a second groove 12, and the second groove 12 penetrates through one end of the housing 1. The second groove 12 is provided at the top of the third groove 13, and the second groove 12 communicates with the third groove 13; the second groove 12 and the third groove 13 are provided below the first threaded hole 21; the length of the second groove 12 is 20.1 mm, the width of the second groove 12 is 20.1 mm, and the height of the second groove 12 is 3.1 mm.
[0048] As Figure 5 shown, screws 3 are placed inside the second groove 12 and the third groove 13. The screw 3 includes: a first nail head 31, a second nail head 32 and a nail rod 34. The first nail head 31 is provided at the top end of the second nail head 32, and the top end of the nail rod 34 penetrates through the second nail head 32 and is connected to the bottom end of the first nail head 31; the diameters of the first nail head 31 and the second nail head 32 are 20 mm, and the thicknesses of the first nail head 31 and the second nail head 32 are 3 mm; the diameter of the nail rod 34 is 8 mm, the length of the nail rod 34 is 30 mm, the distance between the first nail head 31 and the second nail head 32 is 2.5 mm. The first nail head 31 is placed inside the second groove 12, the top end of the nail rod 34 is placed inside the third groove 13, the second nail head 32 is located at the bottom end of the third groove 13, and the nail rod 34 extends to the outside of the housing 1.
[0049] In summary, first use the screw 3 to drill and embed the device to be measured. When embedding, pay attention to fully burying the nail rod 34 and leaving the nail head 33 outside, making the bottom end of the housing 1 flush with the bottom end of the device. First, fix the laser rangefinder through the first groove 11 of the housing 1 with the screw 2 and the first threaded hole 21 and the second threaded hole 22. Then, pass the nail head 33 into the housing 1 through the second groove 12, and pass the nail rod 34 into the housing 1 through the third groove 13. After the installation is completed, monitor the device, and the difference between the two measured data is the displacement distance of the device;
[0050] When the laser rangefinder needs to measure the absolute distance value during measurement, the double-layer measurement screw 3 is used. This screw uses the first nail head 31 and the second nail head 32, with a spacing of 2.5 mm, a nail head thickness of 3 mm, a diameter of 20 mm, and a nail rod diameter of 8 mm. First, drill and embed the screw 3, then put the first nail head 31 into the second groove 12, and put the nail rod 34 between the first nail head 31 and the second nail head 32 into the third groove 13, making the bottom end of the second nail head 32 flush with the bottom end of the device. The measured value plus the 8 mm from the bottom end of the first groove 11 to the bottom end of the housing 1 and the 3 mm thickness of the second nail head 32 can obtain the absolute distance value.
[0051] Each device selected in this application is a general standard part or a component known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.
[0052] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0053] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0054] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A device for improving the deformation monitoring accuracy of a laser rangefinder, characterized in that: include: A shell (1), wherein a first groove (11) is formed in the middle of the shell (1), and the first groove (11) passes through the top end of the shell (1); A first threaded hole (21) and a second threaded hole (22) are provided at the top end of the shell (1), the first threaded hole (21) is provided at one end of the shell (1), and the second threaded hole (22) is provided at one side of the shell (1), and the first threaded hole (21) and the second threaded hole (22) are both connected to the first groove (11); A third groove (13) is formed at the bottom end of the shell (1), and the third groove (13) passes through the bottom end of the shell (1) and one end of the shell (1); The housing (1) is further provided with a second groove (12), the second groove (12) passing through one end of the housing (1), the second groove (12) being arranged at the top end of the third groove (13), the second groove (12) being communicated with the third groove (13); the second groove (12) and the third groove (13) being arranged below the first threaded hole (21); Screws (3) are placed inside the second groove (12) and the third groove (13).
2. A device for improving deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The length of the third groove (13) is 14 mm to 14.5 mm, the width of the third groove (13) is 8 mm to 8.5 mm, and the height of the third groove (13) is 2.4 mm to 2.5 mm.
3. The device for improving deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The length of the second groove (12) is 20 mm to 20.5 mm, the width of the second groove (12) is 20 mm to 20.5 mm, and the height of the second groove (12) is 3 mm to 3.5 mm.
4. The device for improving the deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The screw (3) comprises: a nail head (33) and a nail rod (34), wherein the bottom end of the nail head (33) is connected to the top end of the nail rod (34); The diameter of the nail head (33) is 18 mm to 22 mm, and the thickness of the nail head (33) is 2 mm to 4 mm; the diameter of the nail rod (34) is 6 mm to 10 mm, and the length of the nail rod (34) is 28 mm to 32 mm; The nail head (33) is placed in the second groove (12), and the nail rod (34) is placed in the third groove (13).
5. The device for improving deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The screw (3) comprises: a first nail head (31), a second nail head (32) and a nail rod (34); the first nail head (31) is arranged at the top end of the second nail head (32); the top end of the nail rod (34) passes through the second nail head (32) and is connected to the bottom end of the first nail head (31); The diameter of the first nail head (31) and the second nail head (32) is 18 mm to 22 mm, and the thickness of the first nail head (31) and the second nail head (32) is 2 mm to 4 mm; The diameter of the nail rod (34) is 6 mm to 10 mm, the length of the nail rod (34) is 28 mm to 32 mm, and the distance between the first nail head (31) and the second nail head (32) is 2 mm to 3 mm; The first nail head (31) is placed in the second groove (12), the top end of the nail rod (34) is placed in the third groove (13), and the second nail head (32) is located at the bottom end of the third groove (13).
6. The device for improving the deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The length of the shell (1) is 68 mm to 70 mm, the width of the shell (1) is 38 mm to 40 mm, and the height of the shell (1) is 16 mm to 20 mm.
7. The device for improving deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The length of the first groove (11) is 61 mm to 65 mm, the width of the first groove (11) is 31 mm to 35 mm, and the height of the first groove (11) is 8 mm to 10 mm.
8. The device for improving the deformation monitoring accuracy of a laser rangefinder as claimed in claim 1, characterized in that: The first threaded hole (21) and the second threaded hole (22) are arranged in the middle of the first groove (11), and the diameters of the first threaded hole (21) and the second threaded hole (22) are 5 mm to 7 mm; Screws (2) are detachably arranged inside the first threaded hole (21) and the second threaded hole (22).
9. The device for improving the deformation monitoring accuracy of a laser rangefinder as claimed in claim 8, characterized in that: The screw (2) passes through the first threaded hole (21) and the second threaded hole (22), and the screw (2) is threadedly connected to the first threaded hole (21) and the second threaded hole (22); The top diameter of the screw (2) is 8 mm to 10 mm, and the bottom diameter of the screw (2) is 5 mm to 7 mm.