A self-anchored displacement sensor

Abstract

The present invention discloses a self-anchored displacement sensor, which relates to the technical field of displacement sensors. The technical solution includes an anchor head, and two fixing mechanisms are symmetrically arranged at the front end of the anchor head. The fixing mechanisms can drive the rubber support blocks arranged thereon to move towards both sides, so that the rubber support blocks extrude the inner wall of the installation groove. A third motor is arranged on the fixing mechanism, and a limiting component is arranged at the output end of the third motor. In the present invention, when installing the displacement sensor, first, an installation groove needs to be dug on the tunnel or slope, and then the sensor anchor head is inserted into the installation groove. After the anchor head is inserted into the installation groove, the two fixing mechanisms arranged at the front end of the anchor head can drive the rubber support blocks arranged thereon to move towards both sides, thereby extruding the inner wall of the installation groove, so that the anchor head is firmly fixed in the installation groove to prevent the situation of unstable anchor head. If the sensor is installed on the slope, the rotating mechanism can also drive the installation plate to rotate and adjust accordingly according to the inclination angle of the notch.

Description

Technical Field

[0001] The present invention relates to the technical field of displacement sensors, and in particular to a self-anchoring displacement sensor. Background Art

[0002] A self-anchoring displacement sensor is a high-precision measuring device widely used in fields such as industrial automation, civil engineering, and robotics. Its main principle is based on optics or electromagnetic induction. By the relative displacement change between the sensor and the object to be measured, it accurately monitors the movement or deformation of the object. The design of this sensor usually includes a fixed base and a movable measuring unit. The self-anchoring design enables the sensor to be firmly fixed at a reference point, thus avoiding measurement errors caused by external vibrations or other interference factors. Its measurement range is usually large and can adapt to various working conditions, ensuring stable and reliable performance in different environments. By real-time monitoring data, this sensor can effectively improve the safety and operation efficiency of equipment and become an indispensable important tool in modern industry and scientific research.

[0003] After retrieval, the invention patent with Chinese patent number CN108106543B discloses a slope monitoring multi-point displacement sensor based on optical fiber bending loss, which includes multiple displacement sensing units. The number of displacement sensing units is greater than or equal to 1, and multiple displacement sensing units are connected in series in sequence. Each displacement sensing unit includes a protective cover, a right-connected lead-out optical fiber, an upper end top plate, a capillary steel pipe, a base material, a lower end bottom plate, a left-connected lead-out optical fiber, and an optical fiber bow-tie modulation mechanism; the protective cover is connected to the upper end top plate by bolts; the upper and lower surfaces of the base material are respectively fixedly connected to the upper end top plate and the lower end bottom plate; a guide groove hole is provided along the central axis of the base material, the capillary steel pipe passes through the guide groove hole, the lower end of the capillary steel pipe is fixed on the lower end bottom plate, the upper end of the capillary steel pipe passes through the upper end top plate and is connected to the optical fiber bow-tie modulation mechanism, and an anchor head is fixed on the lower surface of the lower end bottom plate; the optical fiber bow-tie modulation mechanism is placed in the protective cover. Compared with the prior art, the invention patent with Chinese patent number CN108106543B solves the problems that the existing device is too rough to be used for on-site installation and use, the bow-tie modulation mechanism is exposed and vulnerable to environmental influence, and it cannot realize distributed multi-point displacement measurement inside the landslide body.

[0004] However, during the actual use of the above device, when installing a displacement sensor on a slope or a tunnel, there will be a gap between the sensor anchor head and the groove wall after the anchor head is inserted into the installation groove, resulting in unstable anchor head. Moreover, when installing on a slope, due to the inclination of the groove opening, it is difficult for the installation plate to fit the groove opening, reducing the installation effect of the equipment. Therefore, a self-anchoring displacement sensor is proposed. Summary of the Invention

[0005] The object of the present invention is to solve the disadvantages in the prior art that when installing a displacement sensor on a slope or in a tunnel, there will be a gap between the sensor anchor head and the groove wall after the anchor head is inserted into the installation groove, resulting in unstable anchor head, and when installing on a slope, due to the inclination of the notch opening, it is difficult for the installation plate to fit the notch, reducing the installation effect of the equipment, and a self-anchoring displacement sensor is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A self-anchoring displacement sensor, including an anchor head, two fixing mechanisms are symmetrically arranged at the front end of the anchor head, the fixing mechanism can drive the rubber support blocks arranged on both sides to move to both sides, so that the rubber support blocks squeeze the inner wall of the installation groove, a third motor is arranged on the fixing mechanism, and a limiting component is arranged at the output end of the third motor, and the rotation of the output shaft of the third motor can be limited through the limiting component;

[0008] A connecting line is fixedly connected to the rear end of the anchor head, two rotating mechanisms are symmetrically arranged on both sides of the connecting line, the rotating mechanism is fixedly connected with the installation plate, the installation plate can be driven to rotate through the rotating mechanism, and four installation mechanisms are arranged on the side of the installation plate close to the connecting line, and the installation plate can be fixed to the installation notch through the installation mechanism.

[0009] The above technical solution further includes:

[0010] The fixing mechanism includes fixing plates symmetrically and fixedly connected to both sides of the anchor head, a third motor is arranged at the upper end of the fixing plate, and a fixing component is arranged at the output end of the third motor.

[0011] The fixing component includes a lead screw arranged at the output end of the third gear, the lead screw is rotatably connected with the fixing plate, the lead screw is threadedly connected with a transmission member, rotating wheels are rotatably connected to both sides of the transmission member, the rotating wheels are rotatably connected with a lifting rod, and a lifting plate is rotatably connected to the side of the lifting rod away from the rotating wheel, and a rubber support block is fixedly connected to the upper end of the lifting plate.

[0012] Limiting sliding rails are fixedly connected to both sides of the transmission member, and the limiting sliding rails are fixedly connected to the upper end of the fixing plate.

[0013] The limiting component includes a limiting shell fixedly connected to the front end of the third motor, a third gear is arranged inside the limiting shell, the third gear is fixedly connected with the output shaft of the third motor, the third gear is meshed with a fourth gear, and the fourth gear is fixedly connected with the limiting shell.

[0014] An electric telescopic rod is fixedly connected to the side of the limiting shell close to the third motor, a limiting plate is fixedly connected to the side of the electric telescopic rod away from the limiting shell, and a limiting groove is opened at the corresponding position of the limiting plate at the rear side of the limiting shell.

[0015] The rotating mechanism includes a rotating housing fixedly connected to the anchor head. A second motor is arranged inside the rotating housing, and a rotating component is arranged at the output end of the second motor.

[0016] The rotating component includes a worm arranged at the output end of the second motor. The worm is rotatably connected to the rotating housing, and the worm is meshed with a worm wheel. The worm wheel is rotatably connected to the rotating housing. A connecting plate is fixedly connected to the side of the worm wheel away from the rotating housing, and a mounting plate is fixedly connected to the side of the connecting plate away from the worm wheel.

[0017] The mounting mechanism includes a mounting housing fixedly connected to the mounting plate. A first motor is arranged inside the mounting housing, and a mounting component is arranged at the output end of the first motor.

[0018] The mounting component includes a first gear arranged at the output end of the first motor. The first gear is meshed with a second gear. The second gear is rotatably connected to the mounting housing, and the second gear is threadedly connected to a mounting nail.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, when installing the displacement sensor, first, an installation groove needs to be dug on the tunnel or slope. Then, the sensor anchor head is inserted into the installation groove. After the anchor head is inserted into the installation groove, the two fixing mechanisms arranged at the front end of the anchor head can drive the arranged rubber support blocks to move towards both sides, so as to squeeze the inner wall of the installation groove, and firmly fix the anchor head in the installation groove to prevent the anchor head from being unstable. After the front end of the anchor head is fixed, if the sensor is installed on the slope, the rotating mechanism can also drive the mounting plate to rotate, so that the mounting plate can be adjusted accordingly according to the inclination angle of the notch, and the mounting plate can be fitted with the installation notch, which is convenient for installing and fixing the anchor head.

[0021] 2. In the present invention, when the mounting plate is fitted with the notch, by starting the first motor arranged inside the mounting housing, the mounting nail can be driven to rotate and move downward at the same time. The rotation of the mounting nail can drill through the contact surface and implant the mounting nail around the notch, so as to fix the mounting plate and the notch. By fixing the front and rear ends of the anchor head to the installation groove, the installation stability of the anchor head can be effectively improved. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a self-anchored displacement sensor proposed by the present invention;

[0023] Figure 2 is a three-dimensional structural diagram of the present invention;

[0024] Figure 3This is the first structural schematic diagram in the present invention;

[0025] Figure 4 This is the second structural schematic diagram in the present invention;

[0026] Figure 5 This is the third structural schematic diagram in the present invention;

[0027] Figure 6 This is the fourth structural schematic diagram in the present invention;

[0028] Figure 7 This is the fifth structural schematic diagram in the present invention;

[0029] Figure 8 This is the sixth structural schematic diagram in the present invention;

[0030] Figure 9 This is the seventh structural schematic diagram in the present invention.

[0031] In the figure: 1, anchor head; 2, connecting wire; 3, mounting plate; 4, mounting housing; 5, rubber support block; 6, rotating housing; 7, first motor; 8, first gear; 9, second gear; 10, mounting nail; 11, connecting plate; 12, second motor; 13, worm; 14, worm gear; 15, fixing plate; 16, third motor; 17, lead screw; 18, lifting rod; 19, limit sliding rail; 20, lifting plate; 21, runner; 22, transmission member; 23, limit housing; 24, electric telescopic rod; 25, limit plate; 26, third gear; 27, fourth gear; 28, limit groove. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] As Figures 1-9 shown, a self-anchoring displacement sensor proposed by the present invention includes an anchor head 1. Two fixing mechanisms are symmetrically arranged at the front end of the anchor head 1. The fixing mechanisms can drive the provided rubber support blocks 5 to move to both sides, so that the rubber support blocks 5 squeeze the inner wall of the installation groove. A third motor 16 is arranged on the fixing mechanism, and a limit component is arranged at the output end of the third motor 16. The rotation of the output shaft of the third motor 16 can be restricted through the limit component;

[0035] A connecting line 2 is fixedly connected to the rear end of the anchor head 1. Two rotating mechanisms are symmetrically arranged on both sides of the connecting line 2. The rotating mechanisms are fixedly connected to the mounting plate 3. The mounting plate 3 can be driven to rotate through the rotating mechanisms. Four mounting mechanisms are arranged on the side of the mounting plate 3 close to the connecting line 2. The mounting plate 3 can be fixed to the mounting notch through the mounting mechanisms;

[0036] The fixing mechanism includes fixing plates 15 symmetrically and fixedly connected to both sides of the anchor head 1. A third motor 16 is arranged at the upper end of the fixing plate 15. A fixing component is arranged at the output end of the third motor 16. The fixing component includes a lead screw 17 arranged at the output end of a third gear 26. The lead screw 17 is rotatably connected to the fixing plate 15. A transmission member 22 is threadedly connected to the lead screw 17. Rotating wheels 21 are rotatably connected to both sides of the transmission member 22. The rotating wheels 21 are rotatably connected to a lifting rod 18. The lifting rod 18 is rotatably connected to a lifting plate 20 on the side away from the rotating wheel 21. A rubber support block 5 is fixedly connected to the upper end of the lifting plate 20. Limiting slide rails 19 are fixedly connected to both sides of the transmission member 22. The limiting slide rails 19 are fixedly connected to the upper end of the fixing plate 15;

[0037] The limiting component includes a limiting housing 23 fixedly connected to the front end of the third motor 16. A third gear 26 is arranged inside the limiting housing 23. The third gear 26 is fixedly connected to the output shaft of the third motor 16. The third gear 26 is meshed with a fourth gear 27. The fourth gear 27 is fixedly connected to the limiting housing 23. An electric telescopic rod 24 is fixedly connected to the side of the limiting housing 23 close to the third motor 16. A limiting plate 25 is fixedly connected to the side of the electric telescopic rod 24 away from the limiting housing 23. A limiting groove 28 is opened at the corresponding position of the limiting plate 25 at the rear side of the limiting housing 23;

[0038] The rotating mechanism includes a rotating housing 6 fixedly connected to the anchor head 1. A second motor 12 is arranged inside the rotating housing 6. A rotating component is arranged at the output end of the second motor 12. The rotating component includes a worm 13 arranged at the output end of the second motor 12. The worm 13 is rotatably connected to the rotating housing 6. The worm 13 is meshed with a worm gear 14. The worm gear 14 is rotatably connected to the rotating housing 6. A connecting plate 11 is fixedly connected to the side of the worm gear 14 away from the rotating housing 6. The mounting plate 3 is fixedly connected to the side of the connecting plate 11 away from the worm gear 14.

[0039] In this embodiment, when installing a displacement sensor on a slope or in a tunnel, there will be a gap between the anchor head 1 of the sensor and the groove wall after the anchor head 1 is inserted into the installation groove, resulting in instability of the anchor head 1. After the anchor head 1 is inserted into the installation groove in the present invention, the third motor 16 provided on the fixing plate 15 can be started to drive the lead screw 17 to rotate. The rotation of the lead screw 17 can drive the moving member 22 connected by threads to move. During the movement of the moving member 22, the limiting slide rails 19 slidably connected on both sides can ensure the stability of the moving member 22 during movement. The movement of the moving member 22 can drive the runner 21 to move, thereby driving the lifting rod 18 rotatably connected to the runner 21 to move. The rotation of the lifting rod 18 can drive the lifting plate 20 rotatably connected thereto to extend outward. By controlling the lifting plates 20 on both sides to extend outward, the rubber support blocks 5 fixedly connected to the lifting plates 20 can be driven to press against the inner wall of the installation groove, thereby firmly fixing the front end of the anchor head 1 in the installation groove, effectively improving the stability of the device;

[0040] After the rubber support block 5 extends, the electric telescopic rod 24 can be used to drive the limiting plate 25 to be inserted into the limiting groove 28. The limiting plate 25 inserted into the limiting groove 28 in the limiting housing 23 will be clamped at the gear gap of the fourth gear 27, thereby limiting the fourth gear 27. The third gear 26 meshed with the fourth gear 27 is also limited accordingly, and further the output shaft of the third motor 16 will not rotate, fixing the position of the rubber support block 5;

[0041] If the sensor is installed on a slope, the second motor 12 can also be used to drive the worm 13 to move. The rotation of the worm 13 drives the worm wheel 14 to rotate. The rotation of the worm wheel 14 can drive the connecting plate 11 to rotate, and further drive the mounting plate 3 to rotate, so that the mounting plate 3 can be adjusted accordingly according to the inclination angle of the notch, making the mounting plate 3 able to fit the installation notch, facilitating the installation and fixation of the anchor head 1.

[0042] Embodiment 2

[0043] As Figures 1-9 shown, the installation mechanism includes an installation housing 4 fixedly connected to the mounting plate 3. A first motor 7 is arranged inside the installation housing 4. An installation component is arranged at the output end of the first motor 7. The installation component includes a first gear 8 arranged at the output end of the first motor 7. The first gear 8 is meshed with a second gear 9. The second gear 9 is rotatably connected to the installation housing 4. The second gear 9 is threadedly connected with an installation nail 10.

[0044] In this embodiment, after the mounting plate 3 fits with the notch of the mounting groove on the slope, the first motor 7 arranged inside the mounting housing 4 is started to drive the first gear 8 to rotate. The rotation of the first gear 8 drives the meshing-connected second gear 9 to rotate, and the rotation of the second gear 9 drives the screw-connected mounting nail 10 to rotate and move downward at the same time. Furthermore, the mounting nail 10 can be driven to rotate and drill the contact surface, and the mounting nail 10 is implanted around the notch, so as to fix the mounting plate 3 with the mounting notch. By fixing the front and rear ends of the anchor head 1 with the mounting groove, the installation stability of the anchor head 1 can be effectively improved.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-anchored displacement sensor, comprising an anchor head (1), characterized in that, Two fixing mechanisms are symmetrically arranged at the front end of the anchor head (1). The fixing mechanisms can drive the rubber support blocks (5) arranged thereon to move to both sides, so that the rubber support blocks (5) extrude the inner wall of the installation groove. A third motor (16) is arranged on the fixing mechanism, and a limiting component is arranged at the output end of the third motor (16). The rotation of the output shaft of the third motor (16) can be restricted through the limiting component. A connecting line (2) is fixedly connected to the rear end of the anchor head (1). Two rotating mechanisms are symmetrically arranged on both sides of the connecting line (2). The rotating mechanisms are fixedly connected to the mounting plate (3). The mounting plate (3) can be driven to rotate through the rotating mechanisms. Four mounting mechanisms are arranged on one side of the mounting plate (3) close to the connecting line (2). The mounting plate (3) can be fixed to the mounting groove opening through the mounting mechanisms. The rotating mechanism includes a rotating housing (6) fixedly connected to the anchor head (1). A second motor (12) is arranged inside the rotating housing (6). A worm (13) is arranged at the output end of the second motor (12). The worm (13) is rotationally connected to the rotating housing (6). The worm (13) is meshed with a worm wheel (14). The worm wheel (14) is rotationally connected to the rotating housing (6). A connecting plate (11) is fixedly connected to one side of the worm wheel (14) away from the rotating housing (6). A mounting plate (3) is fixedly connected to one side of the connecting plate (11) away from the worm wheel (14). The mounting plate (3) is driven to rotate through the rotating mechanism, so that the mounting plate (3) is adjusted accordingly according to the inclination angle of the groove opening, ensuring that the mounting plate (3) can fit with the mounting groove opening to install and fix the anchor head (1).

2. The self-anchored displacement sensor according to claim 1, wherein, The fixing mechanism includes fixing plates (15) symmetrically and fixedly connected to both sides of the anchor head (1). A third motor (16) is arranged at the upper end of the fixing plate (15), and a fixing component is arranged at the output end of the third motor (16).

3. The self-anchored displacement sensor according to claim 2, characterized in that, The fixing component includes a lead screw (17) arranged at the output end of a third gear (26). The lead screw (17) is rotationally connected to the fixing plate (15). The lead screw (17) is threadedly connected to a transmission part (22). Rotating wheels (21) are rotationally connected to both sides of the transmission part (22). The rotating wheels (21) are rotationally connected to a lifting rod (18). The lifting rod (18) is rotationally connected to a lifting plate (20) on the side away from the rotating wheel (21). A rubber support block (5) is fixedly connected to the upper end of the lifting plate (20).

4. The self-anchored displacement sensor according to claim 3, wherein, Limiting sliding rails (19) are fixedly connected to both sides of the transmission part (22). The limiting sliding rails (19) are fixedly connected to the upper end of the fixing plate (15).

5. The self-anchored displacement sensor according to claim 1, characterized in that, The limiting component includes a limiting housing (23) fixedly connected to the front end of the third motor (16). A third gear (26) is arranged inside the limiting housing (23). The third gear (26) is fixedly connected to the output shaft of the third motor (16). The third gear (26) is meshed with a fourth gear (27). The fourth gear (27) is fixedly connected to the limiting housing (23).

6. The self-anchored displacement sensor according to claim 5, wherein One side of the limiting housing (23) close to the third motor (16) is fixedly connected with an electric telescopic rod (24). One side of the electric telescopic rod (24) far from the limiting housing (23) is fixedly connected with a limiting plate (25). A limiting groove (28) is formed at the corresponding position of the limiting plate (25) at the rear side of the limiting housing (23).

7. The self-anchored displacement sensor according to claim 1, characterized in that, The installation mechanism includes an installation housing (4) fixedly connected with the installation plate (3). A first motor (7) is arranged inside the installation housing (4). An installation component is arranged at the output end of the first motor (7).

8. The self-anchored displacement sensor according to claim 7, wherein The installation component includes a first gear (8) arranged at the output end of the first motor (7). The first gear (8) is meshed with a second gear (9). The second gear (9) is rotatably connected to the installation housing (4). The second gear (9) is threadedly connected with an installation nail (10).

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