Special forced centering device for gyroscopic total station

Abstract

The utility model relates to the field of measuring equipment, in particular to a special device for forced centering of a gyroscopic total station, and aims to solve the problem that the existing special device for forced centering has poor applicability and cannot be suitable for forced centering observation pillars with different sizes. The utility model provides a device special for forced centering of a gyroscopic total station. The device comprises a gyroscopic room capable of containing the gyroscopic total station and a body capable of being connected with the gyroscopic room in a clamped mode. A centering groove for placing a gyroscope chamber is formed in the top of the body, and the inner diameter of the centering groove is slightly larger than the diameter of the gyroscope chamber; three first connecting pieces which can be detachably connected with a total station base are annularly arranged at the bottom of the body around the central point of the body; therefore, the forced centering special device for the gyroscopic total station can ensure that the contact surfaces of forced centering observation pillars with different types and different diameters and the forced centering special device for the gyroscopic total station are uniformly stressed, so that the measurement result is more accurate, and the forced centering special device for the gyroscopic total station has better applicability.

Description

Technical Field

[0001] The utility model relates to the field of measuring equipment, in particular to a special device for forced centering of a gyro total station. Background Art

[0002] During tunnel construction surveys, high-precision gyroscopic total stations are used to detect azimuth deviations in the tunnel's external control network and internal conductor network. This effectively controls and reduces lateral swing deviations of the conductors within the tunnel, improving tunnel penetration accuracy and minimizing errors in tunnel construction surveys. Gyroscopic total stations typically require a dedicated tripod for use.

[0003] However, during tunnel construction surveys, some tunnel guide points are set up for forced centering, requiring the gyro total station to be installed on a forced centering observation pier. However, due to limitations in the gyro total station's substructure, it cannot be directly installed on the forced centering observation pier and requires the use of a dedicated forced centering device for the gyro total station.

[0004] Existing forced centering devices for gyro total stations primarily utilize pre-set centering screw holes and connect directly to the forced centering observation pier via screws. However, the diameters of the forced centering observation piers in different tunnels vary, as do the forced centering plates on these piers. Consequently, even with a fixed-size forced centering device, after installation, uneven force is applied to the contact surface between the device and the pier, and the central axis of the gyro total station and the pier are not aligned on the same plumb line, affecting the accuracy of measurement results.

[0005] Therefore, the existing special device for forced centering has the problem of poor applicability and cannot be applied to forced centering observation piers of different sizes. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a special device for forced centering of a gyro total station with better applicability.

[0007] The technical solution of the utility model is as follows: the utility model provides a special device for forced centering of a gyro total station, comprising a gyro room capable of placing the gyro total station and a main body capable of being connected to the gyro room;

[0008] A centering groove for placing the gyroscope room is provided on the top of the body, and the inner diameter of the centering groove is slightly larger than the diameter of the gyroscope room;

[0009] The bottom of the body is provided with three first connecting pieces detachably connected to the total station base in a circumferential direction around the center point thereof.

[0010] As a further improvement of the present invention, the body comprises a circular ring and a base plate arranged in parallel, wherein the central axis of the circular ring and the central axis of the base plate are located on the same straight line;

[0011] The ring is fixedly connected to the chassis via a second connecting member;

[0012] The centering groove is composed of the hollow circular portion of the circular ring and a cavity formed between the circular ring, the bottom plate and the second connecting member.

[0013] As a further improvement of the present invention, the second connecting member is at least two pillars equidistantly arranged around the central axis of the ring.

[0014] As a further improvement of the present invention, the number of the pillars is three.

[0015] As a further improvement of the present invention, the pillars are arc-shaped plates, and the concave surfaces of the arc-shaped plates are all oriented toward the direction of the central axis of the body.

[0016] As a further improvement of the present invention, at least three locking holes are equidistantly formed on the top of the side wall of the main body around its central axis, and a clamping member capable of clamping the gyroscope housing is detachably installed in the locking hole.

[0017] As a further improvement of the present invention, the clamping member is a clamping screw button, and a thread matching the clamping screw button is provided in the clamping hole.

[0018] As a further improvement of the present invention, a reinforcement base is provided at the bottom of the main body, the central axis of the reinforcement base is located on the same straight line as the central axis of the main body, and the first connecting member is provided at the bottom of the reinforcement base.

[0019] As a further improvement of the present invention, the reinforcement base is a cylindrical structure.

[0020] As a further improvement of the present invention, the first connecting member is a positioning screw that matches the size, number, shape and position of the limiting groove on the top of the total station base, and the inner wall of the limiting groove is provided with a thread that matches the positioning screw.

[0021] The beneficial effects of the present utility model are as follows: the gyro total station forced centering special device can be installed on forced centering observation piers of different sizes and dimensions through the total station base, and the gyro total station forced centering special device can be leveled and centered through the total station base. The gyro total station forced centering special device can be connected to the gyro total station, which not only solves the problem that the gyro total station forced centering special device cannot be directly placed on the forced centering observation pier, but also ensures that the contact surface between forced centering observation piers of different types and diameters and the gyro total station forced centering special device is uniformly stressed, ensuring the consistency of the central axis of the gyro total station and the observation pier, making the measurement result more accurate. Therefore, the gyro total station forced centering special device has good applicability, can be universal and compatible, and at the same time has a simple structure, is easy to promote, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a perspective front view of the utility model;

[0023] Figure 2 This is a perspective top view of the present invention (the lighter lines are perspective lines);

[0024] Figure 3 This is a schematic diagram of the overall structure of the total station base involved in the present utility model;

[0025] The names of the components corresponding to the marks in the above drawings are: 1-main body, 2-locking hole, 3-locking screw button, 6-reinforcement base, 7-positioning screw, 10-centering groove, 11-pillar, 14-limiting groove. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below through specific implementations in conjunction with the accompanying drawings.

[0027] In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid overwhelm the core of the present application with excessive descriptions. However, for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0028] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0029] Unless otherwise specified, the terms “connection” and “coupling” mentioned in this application include direct and indirect connections (couplings).

[0030] The definitions of the relevant terms involved in this application are as follows:

[0031] (1) Causes of tunnel construction measurement errors: Tunnel construction measurement is different from general control measurement. There is no GNSS satellite signal in the tunnel, and high-precision GNSS static control measurement cannot be achieved. Therefore, most tunnels are controlled during excavation. As the tunnel is excavated, the wire continues to extend longer. The farther away from the tunnel entrance, the lower the accuracy of the wire point. The azimuth error of the wire end increases, making it difficult to control the lateral penetration accuracy of the tunnel, thereby affecting the lateral penetration error of the tunnel. Using a high-precision gyro total station for azimuth measurement can calibrate in time and reduce errors.

[0032] (2) Gyro total station: It is an instrument that combines a gyroscope and a theodolite through a connecting mechanism to measure the true north azimuth. It uses the physical properties of the gyroscope itself (fixed axis and precession) and uses a metal belt to suspend the sensitive part of the gyroscope with its center of gravity downward to sense the horizontal component of the earth's rotational angular velocity. Under the action of gravity, a torque precessing toward the north is generated, causing the main axis of the gyroscope to swing back and forth around the earth's meridian plane, thereby measuring the true north azimuth. It has the characteristics of high orientation accuracy and short time, and is widely used in mining surveying, engineering surveying and military mapping. It is also an important supporting equipment for radar antenna orientation, drone flight orientation, artillery and long-range weapon launch orientation. In particular, the detachable gyro total station has a high degree of automation, short orientation time, and is less affected by wind speed. It is widely used in underground engineering penetration measurement. The gyroscope is the core of the gyro total station, and is mainly composed of the gyro sensitive part, the gyro sensitive part locking device and other parts; the theodolite is the system's azimuth deriving device, and can also measure the target's geographic azimuth or coordinate azimuth by aiming at the target; the tripod provides support for the gyroscope and theodolite.

[0033] like Figure 1 、 Figure 2 、 Figure 3As shown, the present invention provides a dedicated device for forced centering of a gyro total station. The device includes a main body 1 capable of housing a gyro housing for the gyro total station and being snap-fitted to the gyro housing. A centering recess 10 for housing the gyro housing is defined at the top of the main body 1. The inner diameter of the centering recess 10 is slightly larger than the diameter of the gyro housing. The main body 1 includes a parallel ring and a chassis, with the central axis of the ring and the central axis of the chassis aligned. The ring and chassis are fixedly connected by a second connecting member. The centering recess 10 is formed by the hollow circular portion of the ring and the cavity formed between the ring, chassis, and second connecting member. The second connecting member comprises at least two pillars 11 equidistantly arranged circumferentially around the central axis of the ring. There are three pillars 11. The pillars 11 are curved plates, with the concave surfaces of the curved plates facing the central axis of the main body 1. This hollow design allows the gyro housing to be exposed to air during operation, ensuring heat dissipation of the gyro total station during measurement operations. At least three locking holes 2 are equidistantly spaced around the central axis of the main body 1 at the top of the sidewall. Removably mounted within these holes are engaging members that engage the gyro housing. These members are locking screw knobs 3, threaded to match these. Turning these locking screw knobs 3 locks the gyro housing, securing the gyro total station. This prevents the gyro total station from shaking during operation, which could lead to deviations in azimuth measurements.

[0034] like Figure 1 、 Figure 3 As shown, three first connectors that can be detachably connected to the total station base are arranged in a circumferential manner around the center point of the bottom of the main body 1. A cylindrical reinforcement base 6 is provided at the bottom of the main body 1, and the reinforcement base 6 matches the shape and size of the small groove at the top of the total station base. The central axis of the reinforcement base 6 is on the same straight line as the central axis of the main body 1, and the first connector is provided at the bottom of the reinforcement base 6. The first connector is a positioning screw 7 that matches the size, number, shape and position of the limiting groove 14 at the top of the total station base, and the inner wall of the limiting groove 14 is provided with a thread that matches the positioning screw 7. The special device for forced centering of the gyro total station is threadedly connected to the limiting groove 14 through the positioning screw 7, and then the gyro total station can be installed on a forced centering observation pier of any size and type with the help of the total station base.

[0035] The specific steps for using the special device for forced centering of the gyro total station are as follows:

[0036] (1) Align the total station base with the forced centering observation pier to ensure that the central axis of the total station base and the central axis of the forced centering observation pier are on the same straight line, and use the circular level bubble on the total station base to level the total station base;

[0037] (2) Install the three positioning screws 7 of the gyro total station forced centering device provided by the utility model into the limit grooves 14 on the total station base, and make threaded connections. The reinforced base 6 is located in the small groove, and the gyro total station forced centering device is installed on the total station base;

[0038] (3) Place the gyro total station on the gyro total station forced centering device, with the gyro room located in the centering groove 10. Use the foot screw to level the electronic bubble of the gyro total station to ensure that the central axis of the gyro total station and the central axis of the gyro total station forced centering device are in the same straight line. Tighten the three locking screw knobs 3 to lock the adapter ring of the gyro room.

[0039] (4) After the gyro total station is installed on the forced centering observation pier, azimuth measurement can be started.

[0040] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A special device for forced centering of a gyro total station, characterized in that: It comprises a gyro room capable of accommodating a gyro total station and a body (1) capable of being connected to the gyro room; A centering groove (10) for accommodating the gyroscope room is provided on the top of the body (1), and the inner diameter of the centering groove (10) is slightly larger than the diameter of the gyroscope room; The bottom of the body (1) is provided with three first connecting pieces circumferentially around its center point, which can be detachably connected to the total station base.

2. A gyro total station forced centering device according to claim 1, characterized in that: The body (1) comprises a circular ring and a chassis arranged in parallel, wherein the central axis of the circular ring and the central axis of the chassis are located on the same straight line; The ring is fixedly connected to the chassis via a second connecting member; The centering groove (10) is composed of the hollow circular portion of the circular ring and the cavity formed between the circular ring, the bottom plate and the second connecting member.

3. A gyro total station forced centering device according to claim 2, characterized in that: The second connecting member is at least two pillars (11) equidistantly arranged around the central axis of the ring.

4. A gyro total station forced centering device according to claim 3, characterized in that: The number of the pillars (11) is three.

5. The device for forced centering of a gyro total station according to claim 3, characterized in that: The pillar (11) is an arc-shaped plate, and the concave surface of the arc-shaped plate faces the direction of the central axis of the body (1).

6. A device for forced centering of a gyro total station according to any one of claims 1 to 5, characterized in that: At least three locking holes (2) are equidistantly provided on the top of the side wall of the body (1) around its central axis, and a clamping piece capable of clamping the gyroscope room is detachably installed in the locking hole (2).

7. The device for forced centering of a gyro total station according to claim 6, characterized in that: The clamping member is a locking screw button (3), and a thread matching the locking screw button (3) is provided in the locking hole (2).

8. A device for forced centering of a gyro total station according to any one of claims 1 to 5, characterized in that: A reinforcement base (6) is provided at the bottom of the body (1), the central axis of the reinforcement base (6) and the central axis of the body (1) are located on the same straight line, and the first connecting member is provided at the bottom of the reinforcement base (6).

9. The device for forced centering of a gyro total station according to claim 8, characterized in that: The reinforcement base (6) is a cylindrical structure.

10. A device for forced centering of a gyro total station according to any one of claims 1 to 5, characterized in that: The first connecting member is a positioning screw (7) that matches the size, number, shape and position of the limiting groove (14) at the top of the total station base, and the inner wall of the limiting groove (14) is provided with a thread that matches the positioning screw (7).

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