CN211528692U - Laser range finder for shaft tower - Google Patents

Abstract

The utility model discloses a laser range finder for shaft tower, mount table including distancer, foot rest and fixed distancer, be connected through the pivot between foot rest and the mount table, the foot rest is close to mount table one end and is equipped with strutting arrangement.

Description

Laser range finder for shaft tower

Technical Field

The utility model relates to a distancer especially relates to a laser range finder for shaft tower.

Background

Along with the high-speed development of economy, the scale development of a power transmission line is rapid, the number of the power transmission lines in operation and newly-built is increased rapidly, and the workload of maintenance and acceptance is greatly increased compared with the workload of the prior art, wherein the distance checking on the tension tower jumper sag, the installation distance of the damper and the like is necessary on-tower measurement work, and accurate measurement is needed to prevent the distance from meeting the requirements for emergency line safety.

The measurement work on the tower relates to the distance measurement between any two points of a tower part, is limited by the limitation of high altitude positions on the tower, generally needs two persons to cooperate to complete the measurement, and can not be carried out by a single person. And at present, the direct measurement work such as tape measures is mainly adopted for measurement, the operation on the tower at high altitude is difficult, and the measurement error is easy to generate. Meanwhile, when measurement is carried out on a live line tower, if a measurement target is a live part, a person still adopts a conventional measurement mode, and the risk of electric shock possibly exists, so that the personal safety is in danger. Therefore, it is necessary to develop a special novel distance measuring device for the tower aiming at the high-altitude live-line operation on the tower, which can be completed by one person, has simple operation and small error, so as to solve the defects of the original measuring method and improve the measuring precision and the working efficiency; for example, a "laser range finder" disclosed in chinese patent literature, its publication No. CN104345316B, includes a reflector, and the reflector is disposed in the casing of the laser range finder, and the casing is provided with a light entrance port and a light exit port, the light entrance port and the light exit port are respectively located on one side of the reflector incident light and one side of the exit light, and the light entrance port and the receiving lens of the laser range finder are disposed on the same end face of the laser range finder, and the light exit port is adapted to the position of the camera. Laser rangefinder technique is comparatively ripe at present on the market, but the range finding on the transmission tower is located the open air, and light is stronger, and measuring distance is far away, and laser reflection surface light is weak, and the range finding effect is accurate inadequately, consequently need urgent research and development a small, two arbitrary point distances of measurable quantity shaft tower, take novel laser rangefinder for shaft tower of auto focus function, and the condition of colliding with in considering the outdoor use is comparatively common, and conventional distancer has the problem of security.

Disclosure of Invention

The utility model relates to an overcome current laser range finder and use the problem of colliding with the damage easily and can't realize the auto focus function in the open air, provide a laser range finder for shaft tower, can provide the protection when the support of distancer is emptyd, can auto focus in the use simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a laser range finder for a tower comprises a range finder, a foot rest and a mounting table for fixing the range finder, wherein the foot rest is connected with the mounting table through a rotating shaft, a supporting device is arranged at one end, close to the mounting table, of the foot rest and comprises a support, a heavy hammer and a flywheel, the support and the foot rest are fixedly connected with the lower end face of one end, close to the mounting table, of the mounting table, the heavy hammer is hinged to a ball head between the support, a rack is arranged on the side end face of the heavy hammer, a gear meshed with the rack is arranged at the corresponding position of the supporting device, the gear is rotatably connected with the support through a gear shaft, the flywheel comprises a first wheel disc and a second wheel disc, the gear is connected with the first wheel disc through belt transmission, a supporting rod is arranged at the lower end of the supporting device, the upper end portion of the supporting rod is hinged to the ball head of the, the other end is fixedly connected with the rod body of the supporting rod. Often adopt tripod or tetrapod as the support at the distancer, the foot rest is when the unexpected condition, it inclines or even emptys completely to enclose into planar perpendicular line direction along two adjacent foot rests easily, this scheme is equipped with strutting arrangement near mount table one end department at the foot rest, strutting arrangement mainly acts on when the foot rest takes place to incline, utilize the relative displacement between weight and the gear, drive the gear revolve, and then utilize the steel wire to pull the bracing piece, make the bracing piece take place towards the rotation of foot rest incline direction, the lower extreme of bracing piece stretches out the space that the foot rest encloses, form an extra strong point, thereby prevent the further slope of foot rest, striking damage when the protection distancer does not receive to empty.

Preferably, a driving wheel is arranged on the end face of the side of the gear, one end of the belt is connected with the driving wheel, and the other end of the belt is connected with the first wheel disc. By utilizing the belt transmission, the transmission influence of the distance between the gear and the flywheel can be reduced, so that the size of the gear and the flywheel can be reduced, and the structural weight is reduced. The radial dimension of drive wheel is far greater than the gear, and the radial dimension of first rim plate is far less than the drive wheel, the radial dimension of second rim plate is far greater than first rim plate, take place slight relative position between weight and the gear and change, the gear takes place to rotate under the rack drives, through the drive wheel, the step-by-step transmission of first rim plate and second rim plate, the rotation of great angle takes place for final bracing piece, make the turned angle of bracing piece be greater than the inclination of foot rest, realize the supporting effect of bracing piece.

Preferably, the joint of the steel wire and the rod body of the support rod is close to the upper end part of the support rod. The steel wire is close to the articulated department of bracing piece upper end more with the junction of bracing piece, and according to lever principle, its pulling effect to the bracing piece is more obvious, can improve strutting arrangement's sensitivity more.

Preferably, the upper end of the heavy hammer is provided with a connecting rod, one end of the connecting rod is fixedly connected with the heavy hammer, and the other end of the connecting rod is hinged with the ball head between the supports. The effect of connecting rod is, the effect of weight when increasing the foot rest slope, and when the foot rest slope, the weight still keeps vertical state because the bulb articulates under the action of gravity, and the gear is along with the support slope for take place relative displacement between weight and the gear, rack and gear take place to slide, drive gear revolve. The longer the connecting rod, the larger the displacement of the weight under the same inclination angle, so the effect is more obvious.

Preferably, the pivot includes horizontal rotating shaft and vertical rotating shaft, the mount table include with the direct fixed connection's of distancer first mount table and with the second mount table of foot rest connection, rotate through vertical rotating shaft between first mount table and the second mount table and be connected, rotate through horizontal rotating shaft between second mount table and the foot rest and be connected. The distance measuring instrument can rotate in the vertical direction and the horizontal direction by adding the rotating shaft in the horizontal direction and the vertical direction, so that the measuring range is expanded.

Preferably, a digital sighting telescope is arranged on the mounting table. Make distancer laser axis and camera center pin carry out coaxial calibration through software, realize the quick seizure of the red point of laser to improve range finding stability. The basic principle is as follows: a beam splitting prism system is arranged between the telescope objective and the focusing lens, and the system realizes the multifunction of the telescope, namely, the telescope objective can be aimed to form an image on a cross-hair reticle for angle measurement. Meanwhile, an external optical path system of the distance measurement part can enable modulated infrared light emitted by a photosensitive diode of the distance measurement part to be reflected back through the same path after being emitted to a reflecting prism through an objective lens, and then return light is received by a photodiode under the action of a beam splitter prism; an internal optical path system is additionally arranged in the instrument for distance measurement, modulated infrared light emitted by a photosensitive diode is transmitted to a photodiode through an optical fiber in a beam splitting prism system for receiving, the propagation time of the light is indirectly calculated through the phase difference of the modulated light of the internal optical path and the modulated light of the external optical path, and the actually measured distance is calculated.

The side end face of the heavy hammer is provided with a plurality of racks, and the racks are uniformly arranged on the side end face of the heavy hammer along the circumferential direction. According to the quantity of foot rests, the same quantity of racks, matched gears, flywheels and other transmission devices are arranged, and finally, the steel wires for traction are gathered at the same position on the supporting rod, so that the supporting effect in different directions is realized.

Therefore, the utility model discloses following beneficial effect has: (1) when the foot rest is toppled, an additional supporting point can be provided by extending the supporting rod, so that the collision and damage of equipment such as a laser range finder and the like are avoided; (2) automatic focusing can be achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the first mounting table and the second mounting table of the present invention.

Fig. 3 is a cross-sectional view of the supporting device of the present invention.

In the figure: 1. the distance measuring device comprises a distance measuring instrument, a digital sighting telescope 2, a first mounting table 3, a second mounting table 4, a foot rest 5, a supporting device 6, a vertical rotating shaft 7, a horizontal rotating shaft 8, a support 9, a heavy hammer 10, a supporting rod 11, a steel wire 12, a second wheel disc 13, a first wheel disc 14, a gear 15, a driving wheel 16, a rack 17 and a connecting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Examples

In the embodiment shown in fig. 1, 2 and 3, a laser range finder for a tower, a range finder and a digital sighting telescope 1 are fixed on a first mounting table 2 through bolts, the first mounting table 2 is rotatably connected with a second mounting table 3 at the lower end through a vertical rotating shaft 6, a horizontal rotating shaft 7 is arranged on the lower end face of the second mounting table 3, a tripod 4 with three feet is connected to the lower end of the horizontal rotating shaft 7, a supporting device 5 is fixed on the lower end face of one end of the tripod 4 close to the second mounting table 3, a bracket 8 of the supporting device 5 is equivalent to a shell, and is fixed with the tripod 4 on one hand and provides a supporting point for other internal structures on the other hand. The lower end face of the support 8 is hinged to a ball head of a connecting rod 17, a heavy hammer 9 is fixed to the lower end of the connecting rod 17, the heavy hammer 9 is cylindrical, three racks 16 are evenly arranged on the circumferential surface of the side ring of the heavy hammer 9, gears 14 are arranged at positions close to the racks 16 and meshed with the racks 16, the gears 14 are rotatably connected with the support 8 through shafts of the gears 14, a transmission wheel 15 is welded to one end of each gear 14, a flywheel is arranged at a position close to the transmission wheel 15 and comprises a first wheel disc 13 and a second wheel disc 12, the end portions of the two wheel discs are welded together, and the flywheel is rotatably connected with the support 8. Be equipped with driven belt between drive wheel 15 and the first rim plate 13, the radius of drive wheel 15 is far greater than the radius of gear 14, and the radius of first rim plate 13 is far less than the radius of drive wheel 15, the radius of second rim plate 12 is far greater than the radius of first rim plate 13, steel wire 11 is twining on the second rim plate 12, the steel wire 11 other end is connected on a bracing piece 10, the upper end and the 8 bulb of support of bracing piece 10 are articulated, steel wire 11 is located the upper end that is close to bracing piece 10 with the junction of bracing piece 10.

When the foot rests 4 are inclined accidentally along the direction of the perpendicular line of the plane enclosed by two adjacent foot rests 4, the housing of the supporting device 5 is inclined, the gear 14 and the like connected with the housing are also inclined, the weight 9 and the connecting rod 17 are still in a vertical state due to the ball-hinged connection structure, at the moment, the weight 9 and the gear 14 are displaced relatively, the rack 16 and the gear 14 slide, the gear 14 rotates under the action of the rack 16, the rotation of the gear 14 drives the transmission wheel 15 to rotate, the first wheel disc 13 is driven through the transmission of the belt to further drive the second wheel disc 12 to rotate, the second wheel disc 12 winds the steel wire 11 to drive the supporting rod 10 to rotate, the supporting rod 10 extends towards the inclined direction of the foot rests 4, the foot of the supporting rod 10 extends out of the area enclosed by the three foot rests 4, an additional supporting point is provided for the foot rests 4, and the further inclination and even tilting of the foot, protects the distance measuring instrument and other equipment.

Claims (7)

1. A laser range finder for a tower comprises a range finder, a foot rest and a mounting platform for fixing the range finder, and is characterized in that the foot rest is connected with the mounting platform through a rotating shaft, a supporting device is arranged at one end, close to the mounting platform, of the foot rest, the supporting device comprises a support, a heavy hammer and a flywheel, the support and the foot rest are fixedly connected with the lower end face of one end, close to the mounting platform, of the foot rest, the heavy hammer is hinged to a ball head between the heavy hammer and the support, a rack is arranged on the side end face of the heavy hammer, a gear meshed with the rack is arranged at the corresponding position of the supporting device, the gear is rotatably connected with the support through a gear shaft, the flywheel comprises a first wheel disc and a second wheel disc, the gear is connected with the first wheel disc through belt transmission, a supporting rod is arranged at the lower end, one end of the steel wire is wound on the side ring surface of the second wheel disc, and the other end of the steel wire is fixedly connected with the rod body of the supporting rod.

2. The laser range finder for tower as claimed in claim 1, wherein said gear side end face is provided with a driving wheel, one end of said belt is connected to said driving wheel, and the other end is connected to said first wheel.

3. The laser range finder for tower as claimed in claim 1, wherein the connection of said steel wire and said rod body of said support rod is near the upper end of said support rod.

4. The laser range finder for tower as claimed in claim 1, wherein the weight has a connecting rod at the upper end, one end of the connecting rod is fixedly connected to the weight, and the other end is hinged to the ball joint of the support.

5. The laser range finder for the tower as claimed in claim 1, wherein the rotation shaft comprises a horizontal rotation shaft and a vertical rotation shaft, the mounting table comprises a first mounting table fixedly connected with the range finder and a second mounting table connected with the foot rest, the first mounting table and the second mounting table are rotatably connected through the vertical rotation shaft, and the second mounting table and the foot rest are rotatably connected through the horizontal rotation shaft.

6. The laser range finder for tower as claimed in claim 1, wherein said mounting platform is provided with a digital sighting telescope.

7. The laser rangefinder for towers according to any of claims 1 to 6, wherein the side end surface of the weight has a plurality of racks, and the racks are uniformly arranged on the side end surface of the weight along the circumferential direction.

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