Supporting and centering device for gyro theodolite

Abstract

The utility model relates to a gyro theodolite supporting and centering device which comprises a gyro theodolite, an observation pillar and a supporting and centering support assembly, the gyro theodolite is installed on the supporting and centering support assembly, and the supporting and centering support assembly is installed on the observation pillar. The utility model solves the problem that the gyro theodolite cannot be erected and centered on the observation pillar, can ensure that the gyro theodolite is stably supported and centered on the observation pillar, and has the advantages of convenience in installation, reliability in supporting and high centering speed.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement and mapping, in particular to a gyrotheodolite support and centering device. Background Art

[0002] The gyrotheodolite is a high-precision directional instrument, commonly used for precise azimuth measurement during long-distance tunnel excavation. High-precision gyrotheodolites generally adopt a bottom-mounted structure, and need to be stably supported in a horizontal state by a bracket during operation. At present, gyrotheodolites are generally supported by wooden tripods during operation, and the height and level of the instrument are adjusted by extending and retracting the tripod legs. During the measurement process, the center of the gyrotheodolite must be accurately aligned with the ground mark point to determine the azimuth of the line connecting the landmark point and the distant target point.

[0003] However, in some surveying operations, the gyrotheodolite needs to be set up on a higher observation pier, on which a special threaded head is pre-buried, and the theoretical center point of the threaded head is the measured mark point. Due to the height restrictions of the observation pier, it is impossible to set up and center the gyrotheodolite using an ordinary tripod. In view of the above technical problems, a gyrotheodolite support and centering device is provided. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a gyrotheodolite support and centering device, which solves the problem that the gyrotheodolite cannot be erected and centered on an observation pier, can ensure the stable support and centering of the gyrotheodolite on the observation pier, and has the advantages of easy installation, reliable support and fast centering speed.

[0005] The utility model solves the technical problem through the following technical solutions:

[0006] A gyrotheodolite support and centering device comprises a gyrotheodolite and an observation pier, and also comprises a support and centering bracket assembly, wherein the gyrotheodolite is mounted on the support and centering bracket assembly, and the support and centering bracket assembly is mounted on the observation pier;

[0007] The support and centering bracket assembly includes a chassis, a center nut, a support column, a locking handwheel, an upper plate and a level bubble. The chassis and the upper plate are coaxially connected through a plurality of support columns. The center nut is installed at the center of the chassis. The support and centering bracket assembly is connected to the observation pier through the chassis. A plurality of locking handwheels are evenly installed on the outer circumference of the upper plate. The gyrotheodolite is clamped in the center of the upper plate, clamped by the locking handwheel, and aligned with the center nut.

[0008] Furthermore, it also includes a gasket installed on the upper end of the upper plate.

[0009] Further, it also includes leveling screws circumferentially installed on the chassis, and the leveling screws are several leveling screws.

[0010] Further, a screw head is disposed at the upper end of the observation pier, and the chassis is connected to the observation pier through the screw head.

[0011] Further, an internal thread of the central nut is provided inside the central nut, and it is installed at the center of the chassis through the internal thread of the central nut. A cross marking line is disposed at the center of the top of the central nut, and the center of the cross marking line is concentric with the gyrotheodolite.

[0012] Further, an internal threaded hole and an external threaded head are provided at the center of the chassis. Threaded holes for the leveling screws are provided on the circumference of the chassis and are matched with the leveling screws. The chassis is connected to the observation pier through the internal threaded hole of the chassis, and the chassis is connected to the central nut through the external threaded head of the chassis.

[0013] Further, a spirit level is installed at the upper end of the upper plate of the support centering bracket assembly.

[0014] The advantages and positive effects of the present utility model are:

[0015] 1. For the gyrotheodolite support centering device of the present utility model, the support centering bracket assembly solves the problem that the gyrotheodolite cannot be erected on the observation pier.

[0016] 2. For the gyrotheodolite support centering device of the present utility model, an internal threaded hole of the chassis is provided at the center of the support centering bracket assembly. The support centering bracket assembly is connected to the threaded head of the observation pier through the internal threaded hole of the chassis, and the height of the support centering bracket assembly is adjusted through the leveling screws, which can ensure the stable support of the gyrotheodolite on the observation pier.

[0017] 3. For the gyrotheodolite support centering device of the present utility model, by rotating the locking handwheel to contact the conical flange of the base, the gyrotheodolite is pushed to move horizontally, so that the laser beam of the laser generator irradiates at the intersection position of the cross marking line, and the centering of the laser generator of the gyrotheodolite and the measured marking point can be completed.

[0018] 4. For the gyrotheodolite support centering device of the present utility model, it solves the problems that the gyrotheodolite cannot be erected and centered on the observation pier, can ensure the stable support and centering of the gyrotheodolite on the observation pier, and has the advantages of convenient installation, reliable support, and fast centering speed. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the gyrotheodolite support centering device of the present utility model;

[0020] Figure 2Schematic diagram of the support and centering bracket assembly of the gyrotheodolite support and centering device of the present utility model;

[0021] Figure 3 Schematic diagram of the chassis of the gyrotheodolite support and centering device of the present utility model;

[0022] Figure 4 Schematic diagram of the central nut of the gyrotheodolite support and centering device of the present utility model;

[0023] Figure 5 Schematic diagram of the gyrotheodolite of the gyrotheodolite support and centering device of the present utility model;

[0024] Figure 6 Schematic diagram of the observation pier of the gyrotheodolite support and centering device of the present utility model;

[0025] In the figure:

[0026] 1 - Gyrotheodolite, 101 - Base, 102 - Laser generator; 2 - Support and centering bracket assembly, 201 - Chassis, 201 - 1 Internal thread hole of the chassis, 201 - 2 External thread head of the chassis, 201 - 3 Threaded hole for leveling screw, 202 - Central nut, 202 - 1 Internal thread of the central nut, 202 - 2 Cross marking line, 203 - Leveling screw, 204 - Support column, 205 - Locking handwheel, 206 - Upper plate, 207 - Spacer ring, 208 - Bubble level; 3 - Observation pier, 301 - Thread head. Specific implementation mode

[0027] The present utility model will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereby.

[0028] A gyrotheodolite support and centering device includes a gyrotheodolite 1 and an observation pier 3, and further includes a support and centering bracket assembly 2. The gyrotheodolite 1 is installed on the support and centering bracket assembly 2, and the support and centering bracket assembly 2 is installed on the observation pier 3.

[0029] A conical flange base 101 is arranged in the middle of the gyrotheodolite 1, and a laser generator 102 is arranged at the center of the bottom of the gyrotheodolite 1. The laser generator 102 is coaxial with the central nut 202 installed at the center of the chassis 201. A screw head is arranged at the upper end of the observation pier 3, and the chassis 201 is connected to the observation pier 3 through the screw head.

[0030] The support and centering bracket assembly 2 includes a chassis 201, a central nut 202, a support column 204, a locking handwheel 205, an upper plate 206, a bubble level 208, a spacer ring 207, and leveling screws 203 installed circumferentially on the chassis 201. The leveling screws 203 are a plurality of leveling screws 203.

[0031] Both the chassis 201 and the upper plate 206 are disc-shaped, and the chassis 201 and the upper plate 206 are coaxially arranged and fixedly connected by three uniformly distributed support columns 204; the upper plate 206 is a hollow structure for placing the gyrotheodolite 1, and a gasket ring 207 made of stainless steel is lined on the upper surface of the upper plate 206; three locking handwheels 205 are uniformly threadedly installed on the outer circumference of the upper plate 206, and the locking handwheels 205 are used to adjust the position of the gyrotheodolite 1 in the horizontal direction and finally lock it. A spirit level 208 is installed at the upper end of the upper plate 206 to monitor the levelness of the gyrotheodolite 1 in real time.

[0032] A chassis internal threaded hole 201-1 and a chassis external threaded head 201-2 are provided at the center of the chassis 201, and a leveling screw threaded hole 201-3 for mating with the leveling screw 203 is provided on the circumference of the chassis 201. The chassis 201 is connected to the screw head of the observation pier 3 through the chassis internal threaded hole 201-1, and the chassis 201 is connected to the center nut 202 through the chassis external threaded head 201-2. A cross marking line 202-2 is provided at the center of the top of the center nut 202, and the center of the cross marking line 202-2 is concentric with the laser generator 102 provided at the bottom center of the gyrotheodolite 1. The center nut 202 is internally provided with a center nut internal thread 202-1, and the center nut 202 is installed at the center of the chassis 201 through the center nut internal thread 202-1. Since the center point of the threaded head 301 on the observation pier 3 is the measured marking point, the center nut 202 and the threaded head 301 on the observation pier 3 are coaxially installed, and the intersection point of the cross marking line 202-2 represents the measured marking point. Three leveling screws 203 are uniformly installed in the leveling screw threaded holes 201-3 provided on the circumference of the chassis 201, and when the surface flatness of the observation pier 3 is poor, the horizontal attitude of the support centering bracket assembly 2 can be adjusted by adjusting the length of the leveling screws 203.

[0033] The chassis 201, the upper plate 206 and the support columns 204 are all made of hard aluminum alloy to reduce the weight of the device; the ends of the locking handwheels 205 and the leveling screws 203 are both spherical structures, and the holding parts are all knurled to improve the ease of use during support or locking.

[0034] The working principle of the present utility model:

[0035] Place the support centering bracket assembly 2 on the observation pier 3, screw the chassis internal threaded hole 201-1 and the threaded head 301 on the observation pier 3 together, and the intersection point of the cross marking line 202-2 at the center position of the top of the center nut 202 represents the measured marking point; adjust the lengths of the three leveling screws 203 to make the bubble in the spirit level 208 in the center position, and then tighten the three leveling screws 203 to firmly connect the support centering bracket assembly 2 and the observation pier 3.

[0036] Place the gyrotheodolite 1 on the support centering bracket assembly 2, and turn on the laser generator 102 at the center of the bottom of the gyrotheodolite 1; the locking handwheel 205 contacts the conical flange of the base 101, and by rotating the three locking handwheels 205, the gyrotheodolite 1 is pushed to move horizontally, so that the laser beam of the laser generator 102 irradiates at the intersection position of the cross marking line 202-2, that is, the centering of the center of the gyrotheodolite 1 and the measured marking point is completed.

[0037] Finally, use the three groups of locking handwheels 205 to radially lock the base 101 of the gyrotheodolite 1 to complete the locking and fixing of the gyrotheodolite 1.

[0038] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. A gyrotheodolite support and centering device, comprising a gyrotheodolite and an observation pier, characterized in that: It also includes a support centering bracket assembly, the gyro theodolite is mounted on the support centering bracket assembly, and the support centering bracket assembly is mounted on the observation pier; The support and centering bracket assembly includes a chassis, a center nut, a support column, a locking handwheel, an upper plate and a level bubble. The chassis and the upper plate are coaxially connected through a plurality of support columns. The center nut is installed at the center of the chassis. The support and centering bracket assembly is connected to the observation pier through the chassis. A plurality of locking handwheels are evenly installed on the outer circumference of the upper plate. The gyrotheodolite is clamped in the center of the upper plate, clamped by the locking handwheel, and aligned with the center nut.

2. The gyrotheodolite support and centering device according to claim 1, characterized in that: It also includes a gasket ring installed on the upper end of the upper plate.

3. The gyrotheodolite support and centering device according to claim 1, characterized in that: The invention also comprises leveling screws which are circumferentially mounted on the chassis, wherein the leveling screws are a plurality of leveling screws.

4. The gyrotheodolite support and centering device according to claim 1, characterized in that: A screw head is arranged on the upper end of the observation pier, and the chassis is connected to the observation pier through the screw head.

5. The gyrotheodolite support and centering device according to claim 1, characterized in that: The center nut is provided with a center nut internal thread, and is installed in the center of the chassis through the center nut internal thread. A cross mark line is arranged at the center of the top of the center nut, and the center of the cross mark line is concentric with the gyro theodolite.

6. The gyrotheodolite support and centering device according to claim 1, characterized in that: The center of the chassis is provided with an internal threaded hole and an external threaded head, the circumference of the chassis is provided with leveling screw threaded holes that cooperate with the leveling screws, the chassis is connected to the observation pier through the internal threaded hole of the chassis, and the chassis is connected to the center nut through the external threaded head of the chassis.

7. The gyrotheodolite support and centering device according to claim 1, characterized in that: A level bubble is installed on the upper end of the upper plate of the support and centering bracket assembly.

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