Displacement measuring and reading device

Abstract

The utility model discloses a displacement measuring and reading device, which belongs to the technical field of displacement monitoring and is characterized by comprising a support, a cross arm is arranged at the top of the support, a support ring is fixedly connected to the inner side of the cross arm, a connecting frame is arranged at the bottom of the support ring, and a mounting frame is arranged at the bottom of the connecting frame. By arranging the support, the device can be conveniently connected with a ship deck, the cross arm extends to the observation position by adjusting the installation position, when a ship or other installation carriers incline, the supporting ring, the cross arm connected with the supporting ring and the support can incline along with the carriers, and therefore the ship or other installation carriers can be conveniently observed. However, due to the connection of the first rotating pin and the second rotating pin, the longitudinal ring and the transverse ring can rotate relatively and tend to keep vertically downward under the influence of gravity, and the universal joint allows the swing rod to flexibly rotate in a three-dimensional space and assists the displacement sensor to adapt to inclination in different directions and keep vertical.

Description

Technical Field

[0001] This utility model relates to the field of displacement monitoring technology, and in particular to a displacement measuring device. Background Technology

[0002] Displacement measurement typically refers to the process of measuring and reading the positional movement of structures such as building structures and soil masses in fields such as engineering surveying, geotechnical engineering, and structural monitoring. It is also frequently used for measuring water depth.

[0003] In existing technologies, unmanned surface vessels (USVs) equipped with displacement measurement devices are often used to detect water depth. However, when the vessel is in motion or there are waves, the probe angle changes with the vessel. When the displacement sensor deflects, the error in measuring underwater distance is relatively large, making it inconvenient to use.

[0004] Therefore, a displacement measurement device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a displacement measurement device that can solve the problem in the prior art where unmanned vessels are often used to carry displacement measurement devices to detect water depth, but when the vessel is in motion or there are waves, the probe angle changes with the vessel, resulting in a large error in measuring underwater distance when the displacement sensor deflects.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a displacement measuring device, comprising a bracket, a cross arm at the top of the bracket, a support ring fixedly connected to the inner side of the cross arm, a connecting frame at the bottom of the support ring, a mounting frame at the bottom of the connecting frame, and a displacement sensor on the inner side of the mounting frame;

[0007] The inner side of the support ring is rotatably connected to two first rotating pins, the outer side of the first rotating pins is rotatably connected to a longitudinal ring, the inner side of the longitudinal ring is rotatably connected to two second rotating pins, the outer side of the second rotating pins is rotatably connected to a transverse ring, and the bottom of the transverse ring is provided with a universal joint.

[0008] Preferably, the angle between the lines connecting the two first rotating pins and the two second rotating pins is 90 degrees, and rubber bushings are provided on the outer sides of both the first rotating pins and the second rotating pins.

[0009] Preferably, the universal joint has a collar on its outer side, the inner side of the collar is installed with the universal joint by bolts, the top of the collar is fixedly connected to a connecting frame, and the top of the connecting frame is fixedly connected to the transverse ring.

[0010] Preferably, the top and bottom of the connecting frame are fixedly connected with swing rods, and the top of the top swing rod is fixedly connected to the bottom of the universal joint.

[0011] Preferably, the bottom of the bottom swing arm is fixedly connected to the mounting frame, and a fastening screw is threaded on the inner side of the mounting frame, with the fastening screw in close contact with the displacement sensor on the side closest to the displacement sensor.

[0012] Preferably, a threaded rod is fixedly connected to the inner side of the connecting frame, and a counterweight is threadedly connected to the outer side of the threaded rod.

[0013] Preferably, the bracket has a mounting base at its bottom and a lead screw rotatably connected to its top, with the outer side of the lead screw threadedly connected to the cross arm.

[0014] Preferably, a slide rod is fixedly connected to the bottom of the cross arm, and the outer side of the slide rod is slidably connected to the bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application, by setting up a bracket, facilitates the connection of the device to the ship's deck. The horizontal arm can be extended to the observation position by adjusting the installation position. The support ring is used to support and install the structure during use. The displacement sensor is installed through the mounting frame at the bottom of the connecting frame. The displacement sensor probe points downwards to acquire water depth data in real time. When the ship or other installation carrier tilts, the support ring, the connected horizontal arm, and the bracket will tilt with the carrier. However, due to the connection of the first and second rotating pins, the longitudinal and transverse rings will rotate relative to each other. Utilizing gravity, the bottom connecting frame, internal structure, mounting frame, and displacement sensor act as end weights, tending to remain vertically downward under the influence of gravity. The universal joint allows the pendulum to rotate flexibly in three-dimensional space, assisting the displacement sensor in adapting to tilts in different directions and maintaining verticality, ensuring that there is no excessive measurement error even when the ship experiences a certain degree of swaying. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the displacement measuring device of this utility model;

[0018] Figure 2 This is an external schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a bottom view of a partial structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the transverse ring structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the mounting frame of this utility model.

[0022] In the diagram, 1. Bracket; 2. Cross arm; 3. Support ring; 4. Connecting frame; 5. Mounting frame; 6. Displacement sensor; 7. First rotating pin; 8. Longitudinal ring; 9. Second rotating pin; 10. Transverse ring; 11. Universal joint; 12. Collar; 13. Connecting frame; 14. Swing rod; 15. Fastening screw; 16. Threaded rod; 17. Counterweight; 18. Lead screw; 19. Slide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A displacement measuring device includes a bracket 1, a cross arm 2 at the top of the bracket 1, a support ring 3 fixedly connected to the inner side of the cross arm 2, a connecting frame 4 at the bottom of the support ring 3, a mounting frame 5 at the bottom of the connecting frame 4, and a displacement sensor 6 on the inner side of the mounting frame 5.

[0026] The inner side of the support ring 3 is rotatably connected to two first rotating pins 7, the outer side of the first rotating pins 7 is rotatably connected to a longitudinal ring 8, the inner side of the longitudinal ring 8 is rotatably connected to two second rotating pins 9, the outer side of the second rotating pins 9 is rotatably connected to a transverse ring 10, and the bottom of the transverse ring 10 is provided with a universal joint 11.

[0027] In this embodiment: By setting the bracket 1, it is easy to connect the device to the ship's deck, and by adjusting the installation position, the cross arm 2 can be extended to the observation position. The support ring 3 is used to support and install the structure during use, and the displacement sensor 6 is installed through the mounting frame 5 at the bottom of the connecting frame 4. The displacement sensor 6 probes downward to obtain water depth data in real time. When the ship or other installation carrier tilts, the support ring 3 and the connected cross arm 2 and bracket 1 will tilt with the carrier. However, due to the connection of the first rotating pin 7 and the second rotating pin 9, the longitudinal ring 8 and the transverse ring 10 will rotate relative to each other. Utilizing the effect of gravity, the bottom connecting frame 4, the internal structure, the mounting frame 5, and the displacement sensor 6 act as end weights. Under the influence of gravity, they tend to remain vertically downward. The universal joint 11 allows the swing arm 14 to rotate flexibly in three-dimensional space, assisting the displacement sensor 6 to adapt to tilting in different directions and maintain verticality, so that it will not have too large a measurement error even when the ship shakes to a certain extent.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, the angle between the lines connecting the two first rotating pins 7 and the two second rotating pins 9 is 90 degrees, and rubber bushings are provided on the outer sides of both the first rotating pins 7 and the second rotating pins 9.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, a collar 12 is provided on the outer side of the universal joint 11. The inner side of the collar 12 is installed with the universal joint 11 by bolts. A connecting bracket 13 is fixedly connected to the top of the collar 12. The top of the connecting bracket 13 is fixedly connected to the transverse ring 10.

[0030] Specifically, such as Figure 2 , Figure 3 , Figure 4 As shown, the top and bottom of the connecting frame 4 are fixedly connected with swing rods 14, and the top of the top swing rod 14 is fixedly connected to the bottom of the universal joint 11.

[0031] In this embodiment: by setting rubber bushings to control the frictional force between the first rotating pin 7 and the second rotating pin 9 and the support ring 3, the longitudinal ring 8 and the transverse ring 10 respectively, the rotational flexibility is reduced, and the difficulty in precise positioning when the whole structure shakes is avoided. The first rotating pin 7 and the second rotating pin 9 are set at ninety degrees so that the bottom counterweight structure can rotate between the support ring 3, the longitudinal ring 8 and the transverse ring 10 when tilting. The collar 12 is set in conjunction with the connecting frame 13 to install the universal joint 11 and extend its position downward to lower the center of gravity, while making it easy to disassemble. The swing rod 14 is set to connect the structures.

[0032] Specifically, such as Figure 2 , Figure 3 , Figure 4 As shown, the bottom of the bottom swing rod 14 is fixedly connected to the mounting frame 5, and the inner side of the mounting frame 5 is threaded with a fastening screw 15. The fastening screw 15 is in close contact with the displacement sensor 6 on the side closest to the displacement sensor 6.

[0033] Specifically, such as Figure 4 , Figure 5 As shown, a threaded rod 16 is fixedly connected to the inner side of the connecting frame 4, and a counterweight 17 is threadedly connected to the outer side of the threaded rod 16.

[0034] In this embodiment: by setting the fastening screw 15, the displacement sensor 6 can be easily installed or removed. The set counterweight 17 can further increase the weight of the bottom structure. When the weight of the displacement sensor 6 is uneven, the counterweight 17 can be rotated along the threaded rod 16 to adjust the position of the counterweight 17 inside the connecting frame 4, so that the weight distribution at the bottom is even during calibration and the initial tilt is not easy to occur.

[0035] Specifically, such as Figure 1 As shown, the bottom of the bracket 1 is provided with a mounting base, and the top of the bracket 1 is rotatably connected to a lead screw 18, the outer side of the lead screw 18 and the cross arm 2 are threadedly connected.

[0036] Specifically, such as Figure 1 As shown, a slide rod 19 is fixedly connected to the bottom of the cross arm 2, and the outer side of the slide rod 19 is slidably connected to the bracket 1.

[0037] In this embodiment: by setting a mounting base, the bracket 1 is securely installed in the required position. The lead screw 18 can adjust the vertical height of the cross arm 2 as needed when rotating, while the slide bar 19 can limit the movement of the cross arm 2 to prevent it from rotating or tilting and thus failing to function properly.

[0038] Working principle: When in use, first fix the bottom mounting base of bracket 1 in a suitable position on the mounting carrier, rotate screw 18 to adjust the vertical height of cross arm 2 and limit it by slide rod 19, so that it extends to the observation position, then put displacement sensor 6 into mounting frame 5, rotate fastening screw 15 to fix it, and ensure that the probe is downward. If the weight of displacement sensor 6 is uneven, rotate counterweight 17 on threaded rod 16 in connecting frame 4 to adjust the weight distribution at the bottom. During measurement, the tilt of the carrier will cause the relevant structure to rotate. Using gravity and universal joint 11, the displacement sensor 6 is assisted to maintain vertical and accurate measurement. After the measurement is completed, the displacement sensor 6 can be removed by rotating fastening screw 15 in the opposite direction.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A displacement measuring device comprising a support (1), characterised in that: The bracket (1) has a cross arm (2) at the top, and a support ring (3) is fixedly connected to the inner side of the cross arm (2). The support ring (3) has a connecting frame (4) at the bottom, and a mounting frame (5) is provided at the bottom of the connecting frame (4). A displacement sensor (6) is provided on the inner side of the mounting frame (5). The inner side of the support ring (3) is rotatably connected to two first rotating pins (7), the outer side of the first rotating pins (7) is rotatably connected to a longitudinal ring (8), the inner side of the longitudinal ring (8) is rotatably connected to two second rotating pins (9), the outer side of the second rotating pins (9) is rotatably connected to a transverse ring (10), and the bottom of the transverse ring (10) is provided with a universal joint (11).

2. A displacement measuring device according to claim 1, characterised in that: The angle between the lines connecting the two first rotating pins (7) and the two second rotating pins (9) is 90 degrees, and rubber bushings are provided on the outer sides of the first rotating pins (7) and the second rotating pins (9).

3. A displacement measuring device according to claim 1, characterised in that: The universal joint (11) has a collar (12) on its outer side. The inner side of the collar (12) is installed with the universal joint (11) by bolts. A connecting frame (13) is fixedly connected to the top of the collar (12). The top of the connecting frame (13) is fixedly connected to the transverse ring (10).

4. A displacement measuring device according to claim 1, characterised in that: The top and bottom of the connecting frame (4) are fixedly connected with a swing rod (14), and the top of the top swing rod (14) is fixedly connected to the bottom of the universal joint (11).

5. A displacement measuring device according to claim 4, characterised in that: The bottom of the bottom swing rod (14) is fixedly connected to the mounting frame (5). The inner side of the mounting frame (5) is threaded with a fastening screw (15). The fastening screw (15) is in close contact with the displacement sensor (6) on the side near the displacement sensor (6).

6. A displacement measuring device according to claim 1, characterised in that: A threaded rod (16) is fixedly connected to the inner side of the connecting frame (4), and a counterweight (17) is threadedly connected to the outer side of the threaded rod (16).

7. The displacement measuring device according to claim 1, characterized in that: The bracket (1) is provided with a mounting base at the bottom and a lead screw (18) is rotatably connected to the top of the bracket (1). The outer side of the lead screw (18) is threadedly connected to the cross arm (2).

8. A displacement measuring device according to claim 7, characterised in that: The bottom of the cross arm (2) is fixedly connected to a slide rod (19), and the outer side of the slide rod (19) is slidably connected to the bracket (1).

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