Self-anchored displacement sensor

Abstract

The invention discloses a self-anchored displacement sensor, and relates to the technical field of displacement sensors, and the technical scheme is that the self-anchored displacement sensor comprises an anchor head, two fixing mechanisms are symmetrically arranged at the front end of the anchor head, the fixing mechanisms can drive arranged rubber supporting blocks to move towards the two sides, so that the rubber supporting blocks extrude the inner wall of a mounting groove, and third motors are arranged on the fixing mechanisms. When the displacement sensor is installed, an installation groove needs to be dug in a tunnel or a side slope, then the anchor head of the sensor 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 supporting blocks to move towards the two sides, and then the displacement sensor is installed. The inner wall of the mounting groove is extruded, the anchor head is firmly fixed in the mounting groove so as to prevent the situation that the anchor head is unstable, if the sensor is mounted on a side slope, the mounting plate can be driven to rotate through the rotating mechanism, and adjustment is correspondingly carried out according to the inclination angle of the groove opening.

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

[0003] After searching, the invention patent of Chinese patent number CN108106543B discloses a multi-point displacement sensor for slope monitoring based on optical fiber bending loss, including multiple displacement sensing units, the number of which is greater than or equal to 1, and the multiple displacement sensing units are connected in series in sequence, and each displacement sensing unit includes a protective cover, a right-connected lead-out optical fiber, an upper top plate, a capillary steel tube, a substrate, a lower 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 top plate by bolts; the upper and lower surfaces of the substrate are fixedly connected to the upper top plate and the lower bottom plate respectively; a guide groove hole is arranged along the central axis of the substrate, the capillary steel tube passes through the guide groove hole, the lower end of the capillary steel tube is fixed on the lower bottom plate, the upper end of the capillary steel tube passes through the upper 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 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 roughly made, not convenient for on-site installation and use, the bow-tie modulation mechanism is exposed to the outside and easily affected by the environment; and it cannot realize distributed multi-point displacement measurement inside the landslide body.

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

[0005] The purpose of the present invention is to solve the problem in the prior art that when installing a displacement sensor on a slope or a tunnel, a gap will exist between the sensor anchor head and the groove wall after the sensor anchor head is inserted into the installation groove, thereby causing the anchor head to be unstable. In addition, when installing on a slope, due to the inclination of the groove opening, it is difficult for the mounting plate to fit into the groove, thereby reducing the installation effect of the equipment. 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, comprising an anchor head, wherein two fixing mechanisms are symmetrically arranged at the front end of the anchor head, wherein the fixing mechanisms can drive the rubber support blocks arranged thereon to move to both sides so that the rubber support blocks squeeze the inner wall of the mounting groove, wherein a third motor is arranged on the fixing mechanisms, wherein 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 by the limiting component;

[0008] The rear end of the anchor head is fixedly connected to a connecting line, and two rotating mechanisms are symmetrically arranged on both sides of the connecting line. The rotating mechanism is fixedly connected to the mounting plate, and the mounting plate can be driven to rotate by the rotating mechanism. Four mounting mechanisms are arranged on the side of the mounting plate close to the connecting line, and the mounting plate can be fixed to the mounting slot by the mounting mechanism.

[0009] The above technical solution further includes:

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

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

[0012] The transmission member has limit slide rails fixedly connected to both sides thereof, and the limit slide rails are fixedly connected to the upper end of the fixed plate.

[0013] The limiting assembly 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 to the output shaft of the third motor, the third gear is meshedly connected to the fourth gear, and the fourth gear is fixedly connected to the limiting shell.

[0014] The side of the limiting housing close to the third motor is fixedly connected with an electric telescopic rod, the side of the electric telescopic rod away from the limiting housing is fixedly connected with a limiting plate, and a limiting groove is provided at a corresponding position of the limiting plate at the rear side of the limiting housing.

[0015] The rotating mechanism comprises a rotating shell fixedly connected to the anchor head, a second motor is arranged inside the rotating shell, and a rotating assembly is arranged at the output end of the second motor.

[0016] The rotating assembly includes a worm arranged at the output end of the second motor, the worm is rotatably connected to a rotating housing, the worm is meshingly connected to a worm wheel, the worm wheel and the rotating housing are rotatably connected, 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 comprises a mounting shell fixedly connected to the mounting plate, a first motor is arranged inside the mounting shell, and a mounting assembly is arranged at an output end of the first motor.

[0018] The mounting assembly includes a first gear disposed at the output end of the first motor, the first gear is meshedly connected with a second gear, the second gear is rotationally connected to the mounting housing, and the second gear is threadedly connected with a mounting nail.

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

[0020] 1. In the present invention, when installing the displacement sensor, it is first necessary to dig an installation groove on the tunnel or slope, and then insert the sensor anchor head 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 block to move to both sides, thereby squeezing the inner wall of the installation groove, so that the anchor head is firmly fixed 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 be used to drive the mounting plate to rotate, so that the mounting plate can be adjusted accordingly according to the inclination angle of the notch, so that the mounting plate can fit with the mounting notch, which is convenient for installing and fixing the anchor head.

[0021] 2. In the present invention, after the mounting plate is fitted with the slot, the first motor provided inside the mounting shell is started to drive the mounting nail to rotate and move downward at the same time. The rotation of the mounting nail can drill the contact surface and implant the mounting nail around the slot, thereby fixing the mounting plate and the slot. By fixing the front and rear ends of the anchor head to the mounting slot, the installation stability of the anchor head can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0024] Figure 3It is a schematic diagram of the first structure of the present invention;

[0025] Figure 4 It is a second structural schematic diagram of the present invention;

[0026] Figure 5 It is a schematic diagram of the third structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the fourth structure of the present invention;

[0028] Figure 7 It is a fifth structural schematic diagram of the present invention;

[0029] Figure 8 It is a sixth structural schematic diagram of the present invention;

[0030] Fig. 9 This is the seventh structural diagram of the present invention.

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

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figure 1-Figure 9 As shown, a self-anchoring displacement sensor proposed by the present invention comprises 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 rubber support block 5 to move to both sides, so that the rubber support block 5 squeezes the inner wall of the installation groove, and 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, and the output shaft of the third motor 16 can be limited to rotate by the limiting component;

[0035] The rear end of the anchor head 1 is fixedly connected with a connecting line 2, and two rotating mechanisms are symmetrically arranged on both sides of the connecting line 2. The rotating mechanism is fixedly connected to the mounting plate 3, and the mounting plate 3 can be driven to rotate by the rotating mechanism. Four mounting mechanisms are arranged on the side of the mounting plate 3 close to the connecting line 2, and the mounting plate 3 can be fixed to the mounting slot by the mounting mechanisms;

[0036] The fixing mechanism includes a fixing plate 15 symmetrically fixedly connected on both sides of the anchor head 1, a third motor 16 is arranged on the upper end of the fixing plate 15, a fixing assembly is arranged on the output end of the third motor 16, and the fixing assembly includes a screw rod 17 arranged on the output end of the third gear 26, the screw rod 17 is rotatably connected to the fixing plate 15, the screw rod 17 is threadedly connected to a transmission member 22, the transmission member 22 is rotatably connected to a rotating wheel 21 on both sides, the rotating wheel 21 is 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, the upper end of the lifting plate 20 is fixedly connected to a rubber support block 5, and the transmission member 22 is fixedly connected to a limited slide rail 19 on both sides, and the limited slide rail 19 is fixedly connected to the upper end of the fixing plate 15;

[0037] The limiting assembly 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 meshedly connected to the 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, the electric telescopic rod 24 is fixedly connected to the side away from the limiting housing 23 The limiting plate 25, a limiting groove 28 is provided at the corresponding position of the limiting plate 25 on the rear side of the limiting housing 23;

[0038] The rotating mechanism includes a rotating shell 6 fixedly connected to the anchor head 1, a second motor 12 is arranged inside the rotating shell 6, a rotating assembly is arranged at the output end of the second motor 12, the rotating assembly includes a worm 13 arranged at the output end of the second motor 12, the worm 13 is rotatably connected to the rotating shell 6, the worm 13 is meshedly connected to a worm wheel 14, the worm wheel 14 is rotatably connected to the rotating shell 6, a connecting plate 11 is fixedly connected to the side of the worm wheel 14 away from the rotating shell 6, and a mounting plate 3 is fixedly connected to the side of the connecting plate 11 away from the worm wheel 14.

[0039] In this embodiment, when the displacement sensor is installed on a slope or a tunnel, there will be a gap between the anchor head 1 of the sensor and the groove wall after the sensor is inserted into the installation groove, which makes the anchor head 1 unstable. After the anchor head 1 is inserted into the installation groove, the third motor 16 arranged on the fixing plate 15 can be started to drive the screw rod 17 to rotate. The rotation of the screw rod 17 can drive the threaded transmission member 22 to move. During the movement of the transmission member 22, the limit rails 19 slidably connected on both sides can ensure the stability of the transmission member 22 when it moves. The movement of the transmission member 22 can drive the rotating wheel 21 to move, thereby driving the lifting rod 18 rotatably connected on the rotating wheel 21 to move. The rotation of the lifting rod 18 can drive the rotatably connected lifting plate 20 to extend outward. By controlling the lifting plates 20 on both sides to extend to both sides, the rubber support block 5 fixedly connected on the lifting plate 20 can be driven to squeeze 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 is extended, the electric telescopic rod 24 can drive the limiting plate 25 to be inserted into the limiting groove 28, and the limiting plate 25 inserted into the limiting housing 23 through the limiting groove 28 will be clamped at the gear gap of the fourth gear 27, thereby limiting the fourth gear 27, and the third gear 26 meshing with the fourth gear 27 is also limited, so that the output shaft of the third motor 16 does not rotate, and the position of the rubber support block 5 is fixed;

[0041] If the sensor is installed on the slope, the worm 13 can be driven by the second motor 12. 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 then 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, so that the mounting plate 3 can fit with the mounting notch, which is convenient for installing and fixing the anchor head 1.

[0042] Embodiment 2

[0043] like Figure 1-Figure 9 As shown, the mounting mechanism includes a mounting shell 4 fixedly connected to the mounting plate 3, a first motor 7 is arranged inside the mounting shell 4, an mounting assembly is arranged at the output end of the first motor 7, the mounting assembly includes a first gear 8 arranged at the output end of the first motor 7, the first gear 8 is meshingly connected with a second gear 9, the second gear 9 is rotationally connected to the mounting shell 4, and the second gear 9 is threadedly connected with a mounting nail 10.

[0044] In this embodiment, when the mounting plate 3 is fitted with the mounting groove on the slope, the first motor 7 arranged inside the mounting shell 4 can be started to drive the first gear 8 to rotate. The rotation of the first gear 8 can drive the meshing second gear 9 to rotate, and the rotation of the second gear 9 can drive the threaded mounting nail 10 to rotate and move downward at the same time, thereby driving the mounting nail 10 to rotate and drill the contact surface, and implanting the mounting nail 10 around the groove, thereby fixing the mounting plate 3 to the mounting groove, and by fixing the front and rear ends of the anchor head 1 to the mounting groove, the installation stability of the anchor head 1 can be effectively improved.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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: The front end of the anchor head (1) is symmetrically provided with two fixing mechanisms, the fixing mechanisms can drive the rubber support block (5) to move to both sides, so that the rubber support block (5) squeezes the inner wall of the installation groove, the fixing mechanism is provided with a third motor (16), and the output end of the third motor (16) is provided with a limit assembly, and the output shaft of the third motor (16) can be limited to rotate by the limit assembly; The rear end of the anchor head (1) is fixedly connected to a connecting line (2), 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), and the mounting plate (3) can be driven to rotate by the rotating mechanisms. Four mounting mechanisms are arranged on the side of the mounting plate (3) close to the connecting line (2), and the mounting plate (3) can be fixed to the mounting slot by the mounting mechanisms.

2. A self-anchored displacement sensor according to claim 1, characterized in that: The fixing mechanism comprises a fixing plate (15) symmetrically 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. A self-anchored displacement sensor according to claim 2, characterized in that: The fixing assembly comprises a screw rod (17) arranged at the output end of the third gear (26), the screw rod (17) being rotatably connected to the fixing plate (15), the screw rod (17) being threadedly connected to a transmission member (22), both sides of the transmission member (22) being rotatably connected to rotating wheels (21), the rotating wheels (21) being rotatably connected to a lifting rod (18), the lifting rod (18) being rotatably connected to a lifting plate (20) at a side away from the rotating wheel (21), and the upper end of the lifting plate (20) being fixedly connected to a rubber support block (5).

4. A self-anchored displacement sensor according to claim 3, characterized in that: The transmission member (22) is fixedly connected to limiting slide rails (19) on both sides, and the limiting slide rails (19) are fixedly connected to the upper end of the fixed plate (15).

5. The self-anchored displacement sensor according to claim 1, characterized in that: The limiting assembly comprises 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 meshedly connected to a fourth gear (27); and the fourth gear (27) is fixedly connected to the limiting housing (23).

6. A self-anchored displacement sensor according to claim 5, characterized in that: The side of the limiting housing (23) close to the third motor (16) is fixedly connected to an electric telescopic rod (24), and the side of the electric telescopic rod (24) away from the limiting housing (23) is fixedly connected to a limiting plate (25), and a limiting groove (28) is provided at a 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 rotating mechanism comprises a rotating shell (6) fixedly connected to the anchor head (1), a second motor (12) is arranged inside the rotating shell (6), and a rotating assembly is arranged at the output end of the second motor (12).

8. A self-anchored displacement sensor according to claim 7, characterized in that: The rotating assembly comprises a worm (13) arranged at the output end of the second motor (12); the worm (13) is rotatably connected to a rotating housing (6); the worm (13) is meshingly connected to a worm wheel (14); the worm wheel (14) is rotatably connected to the rotating housing (6); a connecting plate (11) is fixedly connected to the side of the worm wheel (14) away from the rotating housing (6); and a mounting plate (3) is fixedly connected to the side of the connecting plate (11) away from the worm wheel (14).

9. The self-anchored displacement sensor according to claim 1, characterized in that: The mounting mechanism comprises a mounting shell (4) fixedly connected to the mounting plate (3); a first motor (7) is arranged inside the mounting shell (4); and a mounting assembly is arranged at the output end of the first motor (7).

10. A self-anchored displacement sensor according to claim 9, characterized in that: The mounting assembly comprises a first gear (8) arranged at the output end of a first motor (7), the first gear (8) being meshingly connected with a second gear (9), the second gear (9) being rotationally connected to a mounting housing (4), and the second gear (9) being threadedly connected with a mounting nail (10).

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