Adjustable two-dimensional laser area array displacement meter

Abstract

The utility model discloses an adjustable two-dimensional laser area array displacement meter, which comprises a protection frame, a mobile platform horizontally and slidably arranged in the protection frame, a telescopic rod vertically and rotatably connected in the mobile platform, and a mounting plate fixedly connected to the movable end of the telescopic rod, a receiver is fixedly arranged in the protection frame, and the protection frame is of a metal frame structure. The effect of improving the detection precision, the stability and the use safety of the two-dimensional area array laser displacement meter is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of two-dimensional laser array displacement meters, in particular to an adjustable two-dimensional laser array displacement meter. Background Art

[0002] During and after the construction of a project, retaining piles are prone to settlement and deformation under the influence of the hydrological and climatic environment and multiple load factors. Therefore, it is very necessary to measure the settlement of the pile top in the field of geotechnical engineering monitoring technology.

[0003] The two-dimensional surface displacement meter uses the relative displacement between the laser emission point and the spot position collector to mainly measure the displacement and settlement of the monitoring point and other parameters. It is widely used in the settlement around the foundation pit, horizontal displacement, bridge deflection monitoring, slope settlement and horizontal displacement monitoring, and other automated monitoring, and can replace the total station within a certain range. However, the current two-dimensional array device is expensive, and a fixed instrument device is required for each project to realize the use of the two-dimensional array device. Therefore, when using each construction site project, due to the different measurement positions and angles, fixed instrument devices of different sizes and types are required, and they cannot be reused, which is tantamount to increasing the cost of use and it is difficult to achieve universal application of a set of equipment.

[0004] Prior art 202020772358.7 discloses a two-dimensional array laser displacement meter fixed pluggable device. Although it solves the above-mentioned problems, its 8-shaped mounting structure can be fixed in position, but the angle cannot be fixed. Once there is vibration, the angle is easily shifted, resulting in detection problems, and without a protective structure, it is easily damaged by external factors. Summary of the invention

[0005] The technical problem to be solved by the utility model is that the displacement meter is easily affected by external interference, resulting in damage and abnormal detection data.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an adjustable two-dimensional laser array displacement meter, including a protective frame, a mobile platform horizontally slidably arranged in the protective frame, a telescopic rod vertically rotatably connected to the mobile platform, and a mounting plate fixedly connected to the movable end of the telescopic rod, a detection head is fixedly installed on the mounting plate, a receiver is fixedly arranged in the protective frame, and the protective frame is a metal frame structure.

[0007] Preferably, a slide rail is horizontally fixedly provided in the protection frame, the slide rails are arranged in pairs, and the movable platform is installed between the two slide rails.

[0008] Preferably, the mobile platform includes a base plate and an upper cover plate buckled on the top of the base plate, semicircular grooves are provided on the opposite walls of the base plate and the upper cover plate, and the grooves are adapted to the outer diameter of the slide rail, bearings are provided on the opposite walls of the base plate and the upper cover plate, and the telescopic rod is rotatably matched with the bearings.

[0009] Preferably, the telescopic rod includes a mounting tube and a mounting rod coaxially slidably connected to the bottom end of the mounting tube, the mounting tube is rotationally matched with the bearing, a driven gear is fixedly connected to the mounting tube, an angle adjustment rod is vertically rotatably installed on the upper cover plate, a driving gear is installed on the angle adjustment rod, and the driving gear is meshed with the driven gear.

[0010] Preferably, the upper cover plate is fixedly connected with a threaded sleeve, the threaded sleeve is threadedly connected with a lifting screw, the bottom end of the lifting screw is fixedly connected with a nut, the lifting screw is sleeved with a support plate, the outer wall of the mounting rod is fixedly provided with an adaptation set, the mounting rod is sleeved on the support plate, and the support plate is located below the adaptation set.

[0011] Preferably, the lifting screw is T-shaped.

[0012] Preferably, the mounting plate is L-shaped, and the detection head is mounted on a vertical section of the mounting plate.

[0013] The utility model provides an adjustable two-dimensional laser array displacement meter. A protection frame is provided, and a horizontal sliding structure, a vertical rotating structure and a lifting structure are arranged on the protection frame to install a detection head, so that the detection head can move in a horizontal direction, rotate vertically and move in a vertical direction, and can adapt to various needs on site. In addition, due to the arrangement of the protection frame, the detection instrument can be prevented from being offset by external forces after the position adjustment is completed, thereby protecting the detection instrument and reducing measurement errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is the front view of the embodiment of the utility model.

[0017] Figure 3 It is a side view of an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the internal structure of the upper cover plate in the embodiment of the utility model.

[0019] Among them: 1. Protection frame; 2. Slide rail; 3. Bottom plate; 4. Upper cover plate; 5. Mounting tube; 6. Lifting screw; 7. Angle adjustment rod; 8. Mounting rod; 9. Mounting plate; 10. Detection head; 11. Receiver; 12. Support plate; 13. Adapter set; 14. Screw sleeve; 15. Driven gear; 16. Driving gear. DETAILED DESCRIPTION

[0020] like Figure 1-4 The utility model provides an adjustable two-dimensional laser array displacement meter, comprising a protection frame 1, a mobile platform horizontally slidably arranged in the protection frame 1, a telescopic rod vertically rotatably connected in the mobile platform, and a mounting plate 9 fixedly connected to the movable end of the telescopic rod, a detection head 10 is fixedly mounted on the mounting plate 9, a receiver 11 is fixedly arranged in the protection frame 1, and the protection frame 1 is a metal frame structure.

[0021] The protection frame 1 is a cubic structure as a whole. The protection frame 1 is arranged with four columns, and the columns are fixedly connected by a rectangular frame. The rectangular frame is arranged with four layers, which can form a relatively comprehensive fence structure to provide protection for the detection head 10 located inside the protection frame 1; the detection is performed by the detection head 10 cooperating with the receiver 11, and the receiver 11 is fixedly installed on the inner wall of the protection frame 1, which can prevent the bottom of the receiver 11 from being immersed in water.

[0022] The provision of a horizontally slidable mobile platform enables the horizontal position of the detection head 10 to be driven by the movement of the mobile platform, thereby achieving adjustment of the horizontal position of the detection head 10 .

[0023] The telescopic rod that rotates vertically can satisfy the adjustment of the detection angle of the detection head 10 in the vertical direction; the setting of the telescopic rod enables the detection head 10 to be adjusted in height.

[0024] like Figure 1 The protection frame 1 is provided with a horizontally fixed slide rail 2 , the slide rails 2 are arranged in pairs, and the mobile platform is installed between two slide rails 2 .

[0025] A pair of slide rails 2 are arranged in the middle of the top of the protection frame 1 , and the two slide rails 2 support both sides of the mobile platform to ensure that the mobile platform can translate stably along the axial direction of the slide rails 2 .

[0026] like Figure 1-4 The mobile platform comprises a bottom plate 3 and an upper cover plate 4 buckled on the top of the bottom plate 3, semicircular grooves are arranged on the opposite walls of the bottom plate 3 and the upper cover plate 4, and the grooves are adapted to the outer diameter of the slide rail 2, bearings are arranged on the opposite walls of the bottom plate 3 and the upper cover plate 4, and the telescopic rod is rotatably matched with the bearings.

[0027] After the semicircular groove at the bottom of the upper cover 4 is matched with the semicircular groove at the top of the bottom plate 3, the upper cover 4 is buckled onto the bottom plate 3, and then the upper cover 4 and the bottom plate 3 are fixedly connected by bolts, and then the upper cover 4 and the bottom plate 3 are slidably installed on the slide rail 2; by installing bearings on the upper cover 4 and the bottom plate 3, and installing the telescopic rod through the bearings, the bearings and the telescopic rod are in the form of over-fitting, so that the top connecting end of the telescopic rod can be supported and the position is limited by the bearing, and the rotation requirement of the telescopic rod can be met.

[0028] like Figure 1-4 The telescopic rod comprises a mounting tube 5 and a mounting rod 8 coaxially slidably connected to the bottom end of the mounting tube 5, the mounting tube 5 is rotatably matched with the bearing, a driven gear 15 is fixedly connected to the mounting tube 5, an angle adjustment rod 7 is vertically rotatably mounted on the upper cover plate 4, a driving gear 16 is mounted on the angle adjustment rod 7, and the driving gear 16 is meshed with the driven gear 15.

[0029] When the angle of the detection head 10 needs to be adjusted, the angle adjustment rod 7 is rotated, the angle adjustment rod 7 drives the driving gear 16 to rotate, the driving gear 16 drives the driven gear 15 to rotate, and the driven gear 15 drives the mounting tube 5 to rotate, thereby realizing the rotation of the detection head 10 in the vertical direction, and the number of teeth of the driving gear 16 is less than the number of teeth of the driven gear 15.

[0030] like Figure 1-4 The upper cover plate 4 is fixedly connected with a screw sleeve 14, the screw sleeve 14 is threadedly connected with a lifting screw rod 6, the bottom end of the lifting screw rod 6 is fixedly connected with a nut, a support plate 12 is sleeved on the lifting screw rod 6, an adaptor sleeve 13 is fixedly provided on the outer wall of the mounting rod 8, the mounting rod 8 is sleeved on the support plate 12, and the support plate 12 is located below the adaptor sleeve 13.

[0031] After the bottom end of the lifting screw 6 is threadedly connected to the nut, the nut is welded; since one end of the support plate 12 is mounted on the lifting screw 6 and the other end is a semicircular opening, the mounting rod 8 is located in the semicircular opening, when the support plate 12 is pushed upward by the nut, the support plate 12 pushes the mounting rod 8 upward through the adapter sleeve 13, the top of the mounting rod 8 shrinks into the mounting tube 5, and the bottom end of the mounting rod 8 drives the detection head 10 to move upward through the mounting plate 9; when the nut moves downward, the support plate 12 and the mounting rod 8 move downward synchronously due to the loss of support, so that the detection head 10 moves downward, that is, the detection head 10 is moved in the vertical direction.

[0032] like Figure 1 As shown, it is convenient for the staff to rotate the lifting screw 6. The lifting screw 6 is T-shaped.

[0033] like Figure 1 and Figure 2As shown, in order to achieve stable installation of the detection head 10, the mounting plate 9 is L-shaped, and the detection head 10 is mounted on the vertical section of the mounting plate 9.

Claims

1. An adjustable two-dimensional laser array displacement meter, characterized in that: The invention comprises a protection frame (1), a mobile platform horizontally slidably arranged in the protection frame (1), a telescopic rod vertically rotatably connected in the mobile platform, and a mounting plate (9) fixedly connected to the movable end of the telescopic rod, a detection head (10) being fixedly mounted on the mounting plate (9), a receiver (11) being fixedly arranged in the protection frame (1), and the protection frame (1) being a metal frame structure.

2. The adjustable two-dimensional laser array displacement meter according to claim 1, characterized in that: A slide rail (2) is fixedly arranged horizontally in the protection frame (1), the slide rails (2) are arranged in pairs, and the mobile platform is installed between the two slide rails (2).

3. The adjustable two-dimensional laser array displacement meter according to claim 2, characterized in that: The mobile platform comprises a base plate (3) and an upper cover plate (4) buckled on the top of the base plate (3); semicircular grooves are arranged on opposite walls of the base plate (3) and the upper cover plate (4), and the grooves are matched with the outer diameter of the slide rail (2); bearings are arranged on opposite walls of the base plate (3) and the upper cover plate (4), and the telescopic rod is rotatably matched with the bearings.

4. An adjustable two-dimensional laser array displacement meter as claimed in claim 3, characterized in that: The telescopic rod comprises a mounting tube (5) and a mounting rod (8) coaxially slidably connected to the bottom end of the mounting tube (5); the mounting tube (5) is rotatably matched with the bearing; a driven gear (15) is fixedly connected to the mounting tube (5); an angle adjustment rod (7) is vertically rotatably mounted on the upper cover plate (4); a driving gear (16) is mounted on the angle adjustment rod (7); and the driving gear (16) is meshed with the driven gear (15).

5. The adjustable two-dimensional laser array displacement meter according to claim 4, characterized in that: The upper cover plate (4) is fixedly connected with a threaded sleeve (14), the threaded sleeve (14) is threadedly connected with a lifting screw rod (6), the bottom end of the lifting screw rod (6) is fixedly connected with a nut, a support plate (12) is sleeved on the lifting screw rod (6), an adapting sleeve (13) is fixedly provided on the outer wall of the mounting rod (8), the mounting rod (8) is sleeved on the support plate (12), and the support plate (12) is located below the adapting sleeve (13).

6. The adjustable two-dimensional laser array displacement meter according to claim 5, characterized in that: The lifting screw (6) is T-shaped.

7. The adjustable two-dimensional laser array displacement meter according to claim 1, characterized in that: The mounting plate (9) is L-shaped, and the detection head (10) is mounted on a vertical section of the mounting plate (9).

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