Gyro North Finder Angle Adjustment Device

Abstract

The utility model discloses a gyro north finder angle adjustment device, which belongs to the technical field of gyro north finders, including a gyro north finder, and a base for bearing weight arranged below the gyro north finder, wherein rotatable horizontal rulers are arranged in parallel on both sides above the base, and an angle ruler is arranged below the horizontal ruler, and the angle ruler is fixedly arranged with the base, and a fixing piece for fixing the angle of the horizontal ruler after rotation is also arranged above the angle ruler. When the gyro north finder completes precise positioning using an L-shaped baffle, it will remain parallel to the edges of the periphery. At this time, once the gyro north finder displays an angle deviation during operation, the user can directly correct the angle deviation by rotating the horizontal ruler to match it with the angle displayed by the gyro north finder, without adjusting the gyro north finder itself.

Description

Technical Field

[0001] The utility model belongs to the technical field of gyro north finders, and in particular relates to an angle adjustment device for a gyro north finder. Background Art

[0002] The precise orientation of seismic measuring equipment such as seismometers has a direct impact on the output of seismic observation waveforms, the accuracy of earthquake positioning, and the reliability of subsequent studies such as seismic activity analysis. The NV-NF301 (TZ) gyro north finder is an instrument specifically used to quickly determine the geographic north direction. It uses a high-precision dual-axis dynamically tuned gyro to measure the angular velocity component of the earth's rotation and the carrier inclination measured by the accelerometer, and determines the carrier's azimuth by solving the angle between the carrier's reference axis and the true north direction to find the north. The NV-NF301 (TZ) gyro north finder is widely used as an indispensable device for directional north finding when installing a seismometer. It has the characteristics of small size, practicality, and portability.

[0003] According to the publication number: CN220288632U. Name: A north finder placement base, comprising a bottom plate, a support plate arranged directly above the bottom plate, three vertical limit screws fixed to the upper end surface of the bottom plate, support nuts sleeved on the limit screws, and through holes for the limit screws to pass through are opened on the support plate, and the lower end surface of the support plate abuts against the upper end surface of the support nuts.

[0004] The above existing designs still have problems such as inconvenient and inaccurate angle adjustment, long time, and difficulty in marking. At present, there is no gyro north finder orientation angle adjustment device on the market. When the current seismic equipment is installed, it takes about 40-60 minutes to find the north direction once, which slows down the progress of field work. It is urgent to develop the NV-NF301 (TZ) gyro north finder orientation angle adjustment device to improve the efficiency of field work. Utility Model Content

[0005] The utility model aims to provide a gyro north finder angle adjustment device to solve the technical problem of requiring angle orientation adjustment and improving line marking accuracy proposed in the background technology.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a gyro north finder angle adjustment device, including a gyro north finder, and a base for bearing weight arranged below the gyro north finder, wherein rotatable horizontal scales are arranged in parallel on both sides above the base, and an angle scale is arranged below the horizontal scale. The angle scale is fixed to the base, and a fixing part for fixing the angle of the horizontal scale after rotation is also arranged above the angle scale.

[0007] Preferably, a baffle is also provided above the base, through which the gyro north finder can be positioned and placed.

[0008] Preferably, the upper surface of the base is respectively penetrated with a leveling screw hole, and the inside of the leveling screw hole is coaxially threadedly connected with a leveling screw, and then a leveling rotating nut is threadedly connected below the leveling screw hole.

[0009] Preferably, a fixing screw is provided between the leveling rotating nut and the leveling screw, and a level bubble for leveling is provided above the base.

[0010] Preferably, the fixing member consists of a worm wheel and a worm meshingly connected to one side of the worm wheel, and the worm wheel is fixed above the level ruler, and a corresponding rotation hole is opened downward from the top of the worm wheel, and a rotation axis is fixed above the angle ruler.

[0011] Preferably, the rotating shaft is coaxially arranged with the interior of the rotating hole, and a worm rack arranged upwardly at the top of the rotating shaft can allow the worm to rotate.

[0012] Preferably, the fixing member comprises a hand screw that can be rotated and displaced downward, and a threaded cylinder whose outer peripheral surface is threadedly connected to the hand screw.

[0013] Preferably, the end of the threaded cylinder is fixedly arranged with the top of the rotating shaft, and a rotating cylinder is extended upward from the rotating position above the level, and the rotating cylinder is sleeved on the outer circumference of the threaded cylinder.

[0014] Preferably, a ball hole is formed through the outer circumferential surface of the threaded barrel, a round ball is provided at the ball hole, and the end of the hand screw is arranged in an inclined structure.

[0015] Preferably, the baffle is arranged in an L-shaped structure, and its height is 1 cm.

[0016] The gyro north finder angle adjustment device of the utility model has the following advantages:

[0017] 1. The gyro Northfinder angle adjustment device, when the gyro Northfinder completes accurate positioning using the L-shaped baffle, it will remain parallel to the surrounding edges. At this time, once the gyro Northfinder displays an angle deviation during operation, the user can directly correct the angle deviation by rotating the level to match the angle displayed by the gyro Northfinder, without having to adjust the gyro Northfinder itself.

[0018] 2. The gyro north finder angle adjustment device, when the gyro north finder detects an angle deviation, the operator can adjust the position of the level by turning the worm until it is consistent with the angle displayed by the gyro north finder. This design makes the subsequent line drawing operation more convenient and accurate. In addition, due to the use of worm gear and worm transmission, the level will not swing easily even after the adjustment is completed, ensuring the stability and reliability of the device, which is conducive to improving the accuracy and efficiency of the operation. The self-locking characteristics between the worm gear and the worm effectively avoid positioning errors caused by accidental vibrations, providing a solid technical guarantee for high-precision north-seeking and line drawing tasks.

[0019] 3. When the position of the level ruler needs to be fixed in the gyroscopic north finder angle adjustment device, the operator only needs to rotate the thumb screw clockwise to move it downward along the threaded barrel. As the thumb screw descends, its inclined surface will gradually press the ball, forcing the ball to move outward and partially protrude into the inner space of the rotating barrel through the ball hole. At this time, the outer surface of the ball begins to contact and exert pressure on the inner wall of the rotating barrel, thereby increasing friction to prevent any unexpected movement of the rotating barrel and the level ruler, thereby achieving the effect of precise fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0024] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 5 This is a schematic diagram of the top view of the base structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the AA cross-sectional structure of the utility model;

[0027] Figure 7 For the utility model Figure 7The enlarged structural diagram at B in the middle;

[0028] Figure 8 This is a schematic structural diagram of a second embodiment of the utility model;

[0029] Fig. 9 This is a schematic diagram of the threaded barrel structure of the utility model;

[0030] Fig.10 This is a schematic diagram of the top view of the structure of the second embodiment of the utility model;

[0031] Fig.11 This is a schematic diagram of the cross-sectional structure along the BB line of the present invention;

[0032] Fig.12 For the utility model Fig.11 Enlarged structural diagram at point C in the middle.

[0033] Explanation of the markings in the figure: 1. Base; 11. Baffle; 12. Leveling screw hole; 13. Leveling screw; 14. Fixing screw; 15. Level bubble; 2. Gyro north finder; 3. Angle ruler; 31. Level ruler; 32. Worm gear; 33. Worm rack; 34. Worm; 35. Rotating axis; 36. Threaded barrel; 361. Ball hole; 37. Round ball; 38. Thumb screw; 39. Rotating barrel; 4. Leveling rotating nut. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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 on the embodiments of the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] In order to better understand the purpose, structure and function of the utility model, the gyro north finder angle adjustment device of the utility model is further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-Figure 2 The main technical content of the first specific embodiment is shown. In the first embodiment, the core of the technical solution includes a gyro north finder 2 for a north-finding device, which is placed on a base 1 that bears a weight support function. In addition, in order to achieve more precise positioning, an L-shaped baffle 11 is configured above the base 1. The layout of the baffle 11 ensures that the gyro north finder 2 can be accurately and stably positioned. The baffle 11 not only emphasizes the coordination between the various components, but also highlights the important role of the L-shaped baffle 11 in fixing and positioning the gyro north finder 2, thereby ensuring the overall function and stability of the gyro north finder 2.

[0041] On both sides of the top of the base 1, a rotatable level 31 is symmetrically installed, and an angle ruler 3 is arranged below it. This angle ruler 3 is closely connected to the base 1 to ensure the stability of the structure. When the gyro north finder 2 completes precise positioning using the L-shaped baffle 11, it will remain parallel to the edges of the periphery. At this time, once the gyro north finder 2 displays an angle deviation during operation, the user can directly correct the angle deviation by rotating the level ruler 31 to match it with the angle displayed by the gyro north finder 2, without having to adjust the gyro north finder 2 itself. In order to further improve the convenience and accuracy of operation, we have also added a fixing above the angle ruler 3 to lock the angle position of the rotated level ruler 31, ensuring that the level ruler 31 can remain at the preset angle during the entire measurement or calibration process to avoid affecting the measurement results due to accidental movement.

[0042] On the upper surface of the base 1, there is a through leveling screw hole 12, and three distributed leveling screw holes 12 are arranged in a triangular shape. In each leveling screw hole 12, a leveling screw 13 is connected by a coaxial thread. Below the leveling screw hole 12, the leveling rotary nut 4 is connected by a thread. By rotating the leveling rotary nut 4, the leveling of the base 1 can be adjusted to ensure that the equipment is in an ideal balanced state. It is worth mentioning that a fixing screw 14 is also provided between the leveling rotary nut 4 and the leveling screw 13 to enhance the connection stability between the components. In addition, a level bubble 15 is also installed on the top of the base 1. This component works in conjunction with the leveling rotary nut 4 to act together in the leveling process of the equipment, ensuring that the entire system can achieve an accurate horizontal state under any terrain conditions, thereby improving the working efficiency and measurement accuracy of the north-seeking equipment.

[0043] like Figure 3-Figure 7 As shown, the core component of the fixing part includes a worm wheel 32 and a worm 34 meshing therewith. The worm wheel 32 is fixed above the level ruler 31, and a rotation hole is opened downward at its top. A rotating shaft 35 is fixed above the angle ruler 3, and the rotating shaft 35 is coaxially arranged with the rotating hole of the worm wheel 32 to ensure the smoothness of the rotation movement.

[0044] A worm gear frame 33 is installed on the top of the rotating shaft 35, and this structure can support the rotation of the worm gear 34. When the gyro north finder 2 detects an angle deviation, the operator can adjust the position of the level 31 by turning the worm gear 34 until it is consistent with the angle displayed by the gyro north finder 2. This design makes the subsequent line drawing operation more convenient and accurate.

[0045] In addition, due to the use of worm gear 32 and worm 34 transmission, even after adjustment, the level ruler 31 will not easily swing, ensuring the stability and reliability of the device, which is conducive to improving the accuracy and efficiency of the operation. The self-locking characteristics between the worm gear 32 and the worm 34 effectively avoid positioning errors caused by unexpected vibrations, providing a solid technical guarantee for high-precision north-seeking and line-drawing tasks.

[0046] like Figure 8-Figure 12 The main technical content of the second specific embodiment is shown. Although the core design concept is the same as that of the first embodiment, the fixing part is improved. This improvement focuses on the synergy between the hand screw 38 and the threaded barrel 36. The hand screw 38 is designed to be manually rotated and can move downward along the threaded path, and its outer side is connected to the threaded barrel 36 by a thread. The bottom end of the threaded barrel 36 is fixed to the top of the rotating shaft 35, ensuring the structural stability of the entire assembly. Above the rotation point of the level 31, a vertically extending rotating barrel 39 is designed, which is tightly sleeved on the periphery of the threaded barrel 36.

[0047] A ball hole 361 is bored on the side wall of the threaded barrel 36, in which a ball 37 is placed. The end of the hand screw 38 is specially designed to be inclined. When the position of the level ruler 31 needs to be fixed, the operator only needs to rotate the hand screw 38 clockwise to move it downward along the threaded barrel 36. As the hand screw 38 descends, its inclined surface will gradually press the ball 37, forcing the ball 37 to move outward and partially protrude into the internal space of the rotating barrel 39 through the ball hole 361. At this time, the outer surface of the ball 37 begins to contact the inner wall of the rotating barrel 39 and exert pressure, thereby increasing the friction force to prevent any unexpected movement of the rotating barrel 39 and the level ruler 31, thereby achieving the effect of precise fixing.

[0048] In short, the second embodiment achieves rapid positioning and reliable locking of the level ruler 31 through the cooperation of the hand screw 38, the ball 37 and the rotating cylinder 39, optimizes the user experience, and improves the overall functionality and practicality.

[0049] Working principle of the gyro north finder angle adjustment device: When the gyro north finder 2 completes accurate positioning using the L-shaped baffle 11, it will remain parallel to the peripheral edge. At this time, once the gyro north finder 2 displays an angle deviation during operation, the user can directly correct the angle deviation by rotating the level 31 to match the angle displayed by the gyro north finder 2, without having to adjust the gyro north finder 2 itself.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A gyro north finder angle adjustment device, comprising a gyro north finder (2) and a base (1) disposed below the gyro north finder (2) for bearing weight, characterized in that: Rotatable horizontal rulers (31) are arranged in parallel on both sides above the base (1), and an angle ruler (3) is arranged below the horizontal ruler (31). The angle ruler (3) is fixed to the base (1), and a fixing piece for fixing the angle of the horizontal ruler (31) after rotation is arranged above the angle ruler (3).

2. The gyro north finder angle adjustment device according to claim 1, characterized in that: A baffle (11) is also provided above the base (1), and the gyro north finder (2) can be positioned and placed through the baffle (11).

3. The gyro north finder angle adjustment device according to claim 2, characterized in that: The upper surface of the base (1) is respectively penetrated with a leveling screw hole (12), and a leveling screw (13) is coaxially threadedly connected inside the leveling screw hole (12), and then a leveling rotating nut (4) is threadedly connected below the leveling screw hole (12).

4. The gyro north finder angle adjustment device according to claim 3, characterized in that: A fixing screw (14) is also provided between the leveling rotating nut (4) and the leveling screw (13), and a level bubble (15) for leveling is also provided above the base (1).

5. The gyro north finder angle adjustment device according to claim 4, characterized in that: The fixing member is composed of a worm wheel (32) and a worm (34) meshingly connected to one side of the worm wheel (32), and the worm wheel (32) is fixed to the top of the level ruler (31), and a corresponding rotation hole is opened downward at the top of the worm wheel (32), and a rotation shaft (35) is fixedly arranged above the angle ruler (3).

6. The gyro north finder angle adjustment device according to claim 5, characterized in that: The rotating shaft (35) is coaxially arranged with the interior of the rotating hole, and the worm frame (33) arranged upward at the top of the rotating shaft (35) can be used for the worm (34) to rotate.

7. The gyro north finder angle adjustment device according to claim 4, characterized in that: The fixing member comprises a hand screw (38) that can be rotated and displaced downward, and a threaded cylinder (36) threadably connected to the outer peripheral surface of the hand screw (38).

8. The gyro north finder angle adjustment device according to claim 7, characterized in that: The end of the threaded cylinder (36) is fixedly arranged with the top of the rotating shaft (35), and a rotating cylinder (39) is extended upward from the rotating position above the level ruler (31), and the rotating cylinder (39) is sleeved on the outer peripheral surface of the threaded cylinder (36).

9. The gyro north finder angle adjustment device according to claim 8, characterized in that: A ball hole (361) is formed through the outer peripheral surface of the threaded cylinder (36), a round ball (37) is provided at the ball hole (361), and the end of the hand screw (38) is arranged in an inclined structure.

10. The gyro north finder angle adjustment device according to claim 2, characterized in that: The baffle (11) is arranged in an L-shaped structure, and its height is 1 cm.

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