CN105180961A - Sliding small-diameter pipeline track measuring instrument with pipe orifice distance metering function - Google Patents

Abstract

The present invention relates to a small-diameter pipeline trajectory measuring instrument of a nozzle mileage sliding type, which comprises a nozzle mileage meter and a gliding trajectory meter. The glide tracker is connected, and the nozzle odometer is also electrically connected with the glide tracker through a data line. A nozzle odometer sliding type small-diameter pipeline trajectory measuring instrument of the present invention detects the azimuth and pitch angle of the location of the gliding trajectory instrument through the detection device, and simultaneously detects the motion of the gliding trajectory instrument through the nozzle odometer The original data of the three-dimensional trajectory of the pipeline in the pipeline can be obtained without geomagnetic interference, the measurement accuracy is high, and the performance is relatively stable. The mechanical and mechanical principles are organically combined with electronic sensing technology, and there will be no slipping or jamming. The phenomenon, supplemented by automatic data acquisition, signal processing, analysis and calculation and its software program, can obtain the three-dimensional trajectory of the pipeline in the pipeline.

Description

A sliding-type small-diameter pipeline track measuring instrument

technical field

The invention relates to the field of pipeline detection, in particular to a small-diameter pipeline trajectory measuring instrument with a nozzle meter and a sliding type.

Background technique

The construction and development of underground pipelines must accurately grasp the three-dimensional trajectory of the pipeline. Whether it is the safety guarantee of underground engineering, the quality evaluation of underground pipeline construction, or the rational layout of underground space resource utilization, there is an urgent need for accurate acquisition of underground pipeline trajectories. However, many underground pipelines lack trajectory data or have large errors in trajectory data. Especially for underground pipelines laid by non-excavation methods, objectively there is no trajectory data that can be directly measured.

In recent years, special surveying work on the trajectory of underground pipelines has begun to appear, and a measuring instrument in the form of a paw gauge wheel has been used for this undertaking. However, due to the limitations of the design form of the instrument structure, on the one hand, it cannot be used in small-diameter pipes because it is difficult to make a small size; Large measurement errors.

Contents of the invention

The technical problem to be solved by the present invention is to provide a small-diameter pipeline track measuring instrument with a nozzle meter and a sliding type for the above-mentioned deficiencies in the prior art.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a nozzle odometer sliding type small-diameter pipeline trajectory measuring instrument, comprising a nozzle odometer and a sliding trajectory instrument, a wire rope is wound on the nozzle odometer, and the One end of the wire rope is connected with the slide tracker, and the nozzle odometer is also electrically connected with the slide tracker through a data line.

Wherein, the nozzle odometer includes a first rotating shaft, a fixed frame, an elastic coupling and a rotary encoder, and two support blocks are arranged at intervals on one side of the fixed frame, and each of the support blocks is provided with Corresponding through holes, one end of the first rotating shaft extends into the through hole of one of the support blocks, and the other end passes through the through hole of the other support block and is fixedly connected with one end of the elastic coupling , the other end of the elastic coupling is fixedly connected to the rotary encoder through an adapter shaft, a roller is fixed between the two support blocks on the first rotating shaft, and a wire is wound on the roller, so One end of the wire rope passes through the fixed frame and is connected to the sliding track instrument, the rotary encoder is electrically connected to the sliding track instrument through a data line, and the side of the fixed frame away from the support block is connected to the The nozzle of the external pipe to be tested is fixedly connected.

The taxi tracker includes an outer cylinder with openings at both ends, a battery compartment and a collector ring compartment are arranged inside the outer cylinder, the battery compartment is located at one end of the outer cylinder, and the battery compartment is provided with battery, a channel is connected between the battery compartment and the collector ring compartment, a signal processing circuit is provided in the channel, both ends of the collector ring compartment are open, and one end of the collector ring compartment near the channel is provided There is a collector ring, and the end of the collector ring chamber far away from the channel is provided with a rotating mechanism, and the rotating mechanism extends from the end of the collector ring chamber far away from the passage, and the rotating mechanism extends into the The part in the collector ring chamber is arranged adjacent to the collector ring, and the side of the rotating mechanism away from the collector ring chamber is provided with a bracket that can rotate with the rotating mechanism, and the bracket is fixed There is a detection device; both ends of the outer cylinder are sealed and connected with end caps; the battery is electrically connected to the signal processing circuit, one end of the cable on the collector ring is electrically connected to the signal processing circuit, and the other end is electrically connected to the signal processing circuit. One end is electrically connected with the detection device, and the nozzle log is electrically connected with the signal processing circuit.

The beneficial effects of the present invention are: a nozzle odometer sliding type small-diameter pipeline trajectory measuring instrument of the present invention detects the azimuth and pitch angle of the position of the gliding trajectory instrument through the detection device, and simultaneously detects the position through the nozzle odometer The original data of the three-dimensional trajectory of the pipeline in the pipeline can be obtained by the movement distance of the sliding tracker. It is not subject to geomagnetic interference, has high measurement accuracy, and relatively stable performance. It organically combines mechanical and mechanical principles with electronic sensing technology. There will be no slipping or stuck phenomenon, supplemented by automatic data acquisition, signal processing, analysis and calculation and its software program, the three-dimensional trajectory of the pipeline in the pipeline can be obtained.

Description of drawings

Fig. 1 is the cross-sectional view of nozzle log of the present invention;

Fig. 2 is the side view of nozzle log of the present invention;

Fig. 3 is a structural schematic diagram of the glide tracker of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. The first rotating shaft, 2. The fixed frame, 3. The elastic coupling, 4. The rotary encoder, 5. The support block, 6. The roller, 7. The outer cylinder, 8. The battery compartment, 9. The collector ring compartment, 10. Battery, 11. Signal processing circuit, 12. Collector ring, 13. Bracket, 14. End cover, 15. Bearing seat, 16. Second rotating shaft, 17. First bearing, 18. Second bearing, 19 , the rope shaft, 20, the rope shaft, 21, the rope ring, 22, the charging circuit, 23, the first sensor, 24, the second sensor;

201, installation platform.

Detailed ways

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

The present invention provides a small-diameter pipeline track measuring instrument with a nozzle odometer and a sliding track, which includes a nozzle odometer and a gliding tracker. The nozzle odometer is wound with a wire rope, and one end of the wire rope is connected Said glide track meter is connected, and said nozzle odometer is also electrically connected with said glide track meter through a data line.

As shown in Figure 1, the nozzle odometer structure schematic diagram of the present embodiment includes a first rotating shaft 1, a fixed frame 2, an elastic coupling 3 and a rotary encoder 4, and one side of the fixed frame 2 is provided with intervals Two supporting blocks 5, each of which is provided with a corresponding through hole, one end of the first rotating shaft 1 extends into the through hole of one of the supporting blocks 5, and the other end passes through the other. The through hole of the support block 5 is fixedly connected with one end of the elastic coupling 3, the other end of the elastic coupling 3 is fixedly connected with the rotary encoder 4 through an adapter shaft, and the first rotating shaft A roller 6 is fixed between the two support blocks 5 on the 1, and a wire rope is wound on the roller 6, and one end of the wire rope passes through the fixed frame 2 and is connected with the slide tracker, and the rotary code The device 4 is electrically connected to the sliding trajectory instrument through a data line, and the side of the fixed frame 2 away from the support block 5 is fixedly connected to the nozzle of the external pipeline to be tested. As shown in FIG. 2 , the support block 5 is fixed on the fixing frame 2 by nuts.

Preferably, the fixing frame 2 is circular, and the side of the fixing frame 2 away from the support block 5 is extended with a mounting platform 201, and the mounting platform 201 is fixed to the inner wall of the nozzle of the external pipeline to be tested. connect. Through the mounting table 201, the fixed frame 2 and the parts installed on the fixed frame can be fixed relatively firmly on the nozzle of the external pipeline to be tested, which is very convenient and provides stable detection for the nozzle odometer at the same time. platform. Of course, the fixing bracket 2 here can also be in other shapes, such as a square with a through hole in the center, as long as it can be stably fixed on the nozzle of the external pipeline to be tested.

Preferably, two installation through holes are oppositely provided on the installation platform 201 , and the fixed frame 2 is fixedly connected to the nozzle of the external pipe to be tested by pairing bolts and nuts at the installation through holes. The bolt and the nut are paired and fixedly connected, so that the nozzle log can be relatively firmly installed on the nozzle of the external pipeline to be tested, and it is convenient to disassemble and install, and the cost is low, and it is very useful. Of course, for a better fixing effect, more through holes can also be provided on the installation platform 201 , all of which are within the protection scope of the present invention.

As shown in Figure 2, the schematic structural diagram of the taxi tracker of this embodiment includes an outer cylinder 7 with openings at both ends, and a battery compartment 8 and a collector ring compartment 9 are arranged inside the outer cylinder 7, and the battery compartment 8 Located at one end of the outer cylinder 7, and the battery compartment 8 is provided with a battery 10, a channel is connected between the battery compartment 8 and the collector ring compartment 9, and a signal processing circuit 11 is provided in the channel, so Both ends of the collector ring bin 9 are open and a collector ring 12 is provided at one end of the collector ring bin 9 close to the channel, and a rotating mechanism is provided at the end of the collector ring bin 9 away from the channel, and the rotating The mechanism extends from the end of the collector ring chamber 9 away from the channel, and the part of the rotating mechanism extending into the collector ring chamber 9 is arranged adjacent to the collector ring 12, and the rotating mechanism A bracket 13 that can rotate together with the rotating mechanism is provided on the side away from the collector ring warehouse 9, and a detection device is fixed on the bracket 13; both ends of the outer cylinder 7 are sealed and connected with end caps 14. The battery 10 is electrically connected to the signal processing circuit 11, one end of the cable on the collector ring 12 is electrically connected to the signal processing circuit 11, and the other end is electrically connected to the detection device, and the tube The odometer is electrically connected to the signal processing circuit 11.

In this embodiment, the rotating mechanism includes a bearing seat 15 and a second rotating shaft 16, the bearing seat 15 is arranged at the port of the collecting ring chamber 9 away from the channel, and the bearing seat 15 is provided with There are a first bearing 17 and a second bearing 18, the second rotating shaft 16 extends into the bearing housing 15 and is respectively rotationally connected with the first bearing 17 and the second bearing 18, the center of the second rotating shaft 16 A through hole is provided, and the cables on the collector ring 12 pass through the through hole in the center of the second rotating shaft 16 and are electrically connected with the detection device. The second rotating shaft 16 is rotationally connected with two bearings, so that the bracket 13 can rotate freely, and the resistance is very small, which is convenient for the detection device arranged on the bracket 13 to detect the position of the entire sliding tracker. The azimuth and elevation angles are very accurate.

Preferably, both ends of the outer cylinder 7 are provided with a rope shaft 19, one end of the rope shaft 19 is fixedly connected with the end cover 14, and the other end is fixedly connected with a rope shaft 20, the sleeve A rope ring 21 is provided on the rope shaft 20 . The wire rope can be tied to one end of the sliding tracker conveniently through the loop 21, so that the sliding tracker can be pulled and detected in the underground pipeline later. Here, the connecting shaft 19 is fixedly connected with the end cover 14 through a nut, which can be easily disassembled and installed.

Preferably, the end cap 14 is tightly connected to the two ends of the outer cylinder 7 through threads. Through the above method, both ends of the outer cylinder 7 can be sealed to prevent water from entering and damaging the internal signal processing circuit 11 and other components during underground pipeline detection, so that the components in the outer cylinder 7 are better protected and the service life is prolonged. .

Preferably, a charging circuit 22 is provided inside the end cover 14 near the side of the battery compartment 8 , and the charging circuit 22 is electrically connected to the battery 10 . The battery 10 can be charged through the charging circuit 22, so that the battery 10 can be used repeatedly, reducing cost, reducing environmental pollution, saving energy, and being green and low-carbon.

In this embodiment, the detection device includes a first sensor 23 for real-time detection of the azimuth of the position of the entire tracker and a second sensor 24 for real-time detection of the pitch angle of the position of the entire tracker. Both the first sensor 23 and the second sensor 24 are electrically connected to the signal processing circuit 11 . The first sensor 23 and the second sensor 24 can respectively detect the azimuth angle and the elevation angle of the position of the entire tracker, and the measurement accuracy is relatively high.

In the actual operation process, two through holes are relatively opened on the external pipeline to be tested in advance, then the mounting table 201 on the fixed frame 2 is inserted into the external pipeline to be measured, and the through holes on the mounting table 201 are inserted into the external pipeline to be tested. Align with the through hole on the external pipe to be tested, and then screw and connect with bolts and nuts to complete the installation. Then wind the wire rope on the roller 6, and connect the exposed end of the wire rope with the rope ring 21 on the rope shaft 20 at one end of the urceolus, and then connect the wire rope at the other end of the urceolus The noose ring 21 on the noose shaft 20 is connected with another wire rope that is pre-set in the pipeline to be tested near the end of the nozzle log, and the construction personnel pull the wire rope that is pre-set in the pipeline to be tested. The end far away from the nozzle odometer can drive the sliding tracker to move in the pipeline to be tested. At this time, the detection equipment will detect the azimuth and pitch angle of the position of the whole tracker in real time. At the same time, the roller 6 also It will rotate under force, thereby driving the rotary encoder 4 to rotate, and the rotary encoder 6 records the number of turns of the roller 6 and converts it into the distance traveled by the tracker. The signal processing circuit 11 processes the azimuth and elevation angles of the location of the tracker and the movement distance of the tracker to obtain the three-dimensional track of the underground pipeline, which is very accurate, convenient and practical.

A nozzle odometer sliding type small-diameter pipeline trajectory measuring instrument of the present invention detects the azimuth and pitch angle of the location of the gliding trajectory instrument through a detection device, and at the same time detects the motion of the gliding trajectory instrument through the nozzle odometer The original data of the three-dimensional trajectory of the pipeline in the pipeline can be obtained without geomagnetic interference, the measurement accuracy is high, and the performance is relatively stable. The mechanical and mechanical principles are organically combined with electronic sensing technology, and there will be no slipping or jamming. The phenomenon, supplemented by automatic data acquisition, signal processing, analysis and calculation and its software program, can obtain the three-dimensional trajectory of the pipeline in the pipeline.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. a mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument, it is characterized in that: comprise mouth of pipe taximeter and sliding trajectory instrument, described mouth of pipe taximeter is wound with cotton rope, one end of described cotton rope is connected with described sliding trajectory instrument, and described mouth of pipe taximeter is also electrically connected with described sliding trajectory instrument by data line.

2. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 1, it is characterized in that: described mouth of pipe taximeter comprises the first rotating shaft (1), fixed mount (2), spring coupling (3) and rotary encoder (4), the side of described fixed mount (2) is arranged at intervals with two back-up blocks (5), each described back-up block (5) is provided with corresponding through hole, one end of described first rotating shaft (1) is stretched in the through hole of back-up block described in one of them (5), the other end passes the through hole of back-up block (5) described in another and is fixedly connected with one end of described spring coupling (3), the other end of described spring coupling (3) is fixedly connected with described rotary encoder (4) by Coupling Shaft, roller (6) is fixed with between upper described two back-up blocks (5) of described first rotating shaft (1), (6) are wound with cotton rope to described roller, one end of described cotton rope is connected with described sliding trajectory instrument through described fixed mount (2), described rotary encoder (4) is electrically connected with described sliding trajectory instrument by data line, described fixed mount (2) is fixedly connected with the mouth of pipe of outside pipe under test away from the side of described back-up block (5).

3. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 2, it is characterized in that: described fixed mount (2) is annular, and described fixed mount (2) has erecting bed (201) away from the side of described back-up block (5) is extended, described erecting bed (201) is fixedly connected with the internal wall of pipe orifice of outside pipe under test.

4. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 3, it is characterized in that: described erecting bed (201) is relatively set with two and installs through holes, the mouth of pipe of described fixed mount (2) and outside pipe under test passes through to match in described installation through hole and arranges screw bolt and nut and be fixedly connected with.

5. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 1, it is characterized in that: described sliding trajectory instrument comprises the urceolus (7) of the equal opening in two ends, battery compartment (8) and collector ring storehouse (9) are provided with in described urceolus (7), described battery compartment (8) is positioned at one end of described urceolus (7), and be provided with battery (10) in described battery compartment (8), passage is connected with between described battery compartment (8) and collector ring storehouse (9), signal processing circuit (11) is provided with in described passage, collector ring (12) is provided with near described passage end in described collector ring storehouse (9) both ends open and described collector ring storehouse (9), described collector ring storehouse (9) is provided with rotating mechanism away from described passage end, described rotating mechanism stretches into from described collector ring storehouse (9) away from one end of described passage, and the part that described rotating mechanism stretches in described collector ring storehouse (9) is disposed adjacent with described collector ring (12), described rotating mechanism is provided with the bracket (13) that together can rotate with described rotating mechanism away from described collector ring storehouse (9) side, (13) are fixed with pick-up unit with described bracket, the two ends of described urceolus (7) are all sealedly connected with end cap (14),

Described battery (10) is electrically connected with described signal processing circuit (11), one end of the upper cable of described collector ring (12) is electrically connected with described signal processing circuit (11), the other end is electrically connected with described pick-up unit, and described mouth of pipe taximeter is electrically connected with described signal processing circuit (11).

6. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 5, it is characterized in that: described rotating mechanism comprises bearing seat (15) and the second rotating shaft (16), described bearing seat (15) is arranged on the port of described collector ring storehouse (9) away from described passage side, clutch shaft bearing (17) and the second bearing (18) is provided with in described bearing seat (15), described second rotating shaft (16) to be stretched in described bearing seat (15) and is rotationally connected respectively with described clutch shaft bearing (17) and the second bearing (18), described second rotating shaft (16) center is provided with through hole, cable on described collector ring (12) passes the through hole at described second rotating shaft (16) center and is electrically connected with described pick-up unit.

7. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 5, it is characterized in that: described urceolus (7) two ends are equipped with and connect reel for rope (19), described one end connecting reel for rope (19) is fixedly connected with described end cap (14), the other end is provided with and is fixedly connected with cover reel for rope (20), and described cover reel for rope (20) is provided with cover becket bridle (21).

8. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 5, it is characterized in that: described end cap (14) is connected by thread seal with the two ends of described urceolus (7).

9. a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument according to claim 5, it is characterized in that: in the described end cap (14) of described battery compartment (8) side, be provided with charging circuit (22), described charging circuit (22) is electrically connected with described battery (10).

10. according to any one of claim 5 to 9, a kind of mouth of pipe is had the records of distance by the log glding type small diameter pipeline trajectory measurement instrument, it is characterized in that: described pick-up unit comprises position angle for detecting whole Tracing instrument present position in real time and first sensor (23) and the second sensor (24) for the angle of pitch that detects whole Tracing instrument present position in real time, and described first sensor (23) and the second sensor (24) are all electrically connected with described signal processing circuit (11).