Pipeline detection device

Abstract

The utility model relates to the technical field of detection equipment, solves the problem of fatigue caused by holding a receiver for a long time in the detection process, and discloses a pipeline detection device which comprises a transmitter and a receiver, the receiver is detachably connected with a supporting frame, and the supporting frame is provided with a plurality of universal wheels making contact with the ground. The supporting frame supports the receiver to form a gap with the ground. The receiver can be connected with the supporting frame, detection can be carried out only by pushing the receiver and the supporting frame to move together during operation on the flat ground, detection of the pipeline is more labor-saving, and when the pipeline encounters complex terrains, more diversified detection can be carried out by separating the receiver from the supporting frame.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to a pipeline detection device. Background Art

[0002] The pipeline detector can quickly and accurately detect the location, direction, depth and location and size of damaged points of the anti-corrosion layer of underground water pipes, metal pipes, cables, etc. without damaging the ground cover. It is one of the necessary instruments for water companies, gas companies, railway communications, municipal construction, industrial and mining, and infrastructure units to renovate, repair, and survey underground pipelines.

[0003] In the prior art, pipeline detectors include a transmitter and a receiver. The transmitter applies a signal current of a special frequency to the pipeline under test, and generally adopts three excitation modes: direct connection method, induction method and clamp method. The receiver has a built-in induction coil to receive the magnetic field signal of the pipeline. The coil generates an induced current, thereby calculating the direction and path of the pipeline. Generally, there are three receiving modes: peak mode (maximum value), valley mode (minimum value), and wide peak mode.

[0004] Regarding the above-mentioned related technologies, since the underground pipelines are laid over long distances, holding the receiver for a long time will cause fatigue to the detection personnel. Utility Model Content

[0005] In order to improve and reduce fatigue caused by personnel holding a receiver for a long time during the detection process, the present application provides a pipeline detection device.

[0006] The following technical solutions are adopted:

[0007] A pipeline detection device comprises a transmitter and a receiver. The receiver is detachably connected to a support frame, the support frame is provided with a plurality of universal wheels in contact with the ground, and the support frame supports the receiver so that there is a gap between the receiver and the ground.

[0008] By adopting the above technical solution, a detachable support frame is provided, and the receiver is connected to the support frame; when operating on flat ground, detection can be carried out only by pushing the receiver and the support frame to move together, making pipeline detection more labor-saving; when encountering complex terrain, the receiver and the support frame can be separated to carry out more diverse detections.

[0009] Optionally, the support frame includes a connecting sleeve for one end of the receiver to be inserted into, and one end of the connecting sleeve has a plurality of protrusions in a circumferential array, the protrusions have deformation capability, and a plurality of protrusions are surrounded by clamps on the outer circumference.

[0010] By adopting the above technical solution, the protruding pieces have the ability to deform, and the plurality of protruding pieces are pressed toward the receiver by tightening the clamp, thereby fixing the receiver.

[0011] Optionally, the support frame includes a plurality of legs, and the plurality of legs are circumferentially arranged on the outside of the connecting sleeve, one end of the leg is connected to the connecting sleeve, and the other end is connected to the universal wheel.

[0012] Optionally, the support leg is rotatably connected to the connecting sleeve, and the support frame also includes a control ring. A plurality of balance rods are arranged on the side of the connecting sleeve close to the ground along the length direction of the receiver. The balance rods pass through the control ring, and the control ring can move along the length direction of the balance rods. A plurality of connecting rods are rotatably connected to the circumferential side of the control ring, and the ends of the connecting rods are rotatably connected to the middle sections of the corresponding support legs. The control ring is provided with a limit assembly for limiting its movement after movement.

[0013] By adopting the above technical solution, the relative position of the control ring and the connecting sleeve is adjusted to expand or collapse the plurality of legs. When the control ring slides toward the connecting sleeve, the plurality of legs are expanded.

[0014] Optionally, a first elastic member is provided on the balancing rod, and the elastic member enables the control ring to always have a tendency to move away from the connecting sleeve.

[0015] Optionally, the limit assembly includes a limit bolt, a limit sleeve and a second elastic member, the limit sleeve is arranged perpendicular to the length direction of the balance pole, the limit bolt is slidably connected in the limit sleeve, the balance pole is provided with a limit hole for the limit bolt to slide into, and the second elastic member is arranged in the limit sleeve so that the limit bolt always has a tendency to move in the direction of the balance pole.

[0016] By adopting the above technical solution, when the control ring slides out of the connecting sleeve, the plurality of legs are unfolded to the position where the limit bolt is opposite to the limit hole, and the limit bolt slides and is stuck in the limit hole, thereby fixing the control ring.

[0017] Optionally, an elastic filling piece is provided in the connecting sleeve, and a slot is formed in the elastic filling piece, and the slot is interference fit with the receiver.

[0018] Optionally, a limit block is provided at the end of the balance rod to prevent the control ring from falling out.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] 1. Set up a detachable support frame and connect the receiver to the support frame; when operating on flat ground, detection can be carried out by simply pushing the receiver and the support frame together, making pipeline detection more labor-saving;

[0021] 2. When encountering complex terrain, the receiver and support frame can be separated to perform more diverse detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0023] Figure 2 is a schematic diagram of the cross-sectional structure of the support frame;

[0024] Figure 3 It is a schematic diagram of the enlarged structure at A;

[0025] Figure 4 This is a schematic diagram of the enlarged structure at point B.

[0026] Explanation of the reference numerals: 1. receiver; 11. sensing part; 12. handle; 13. display; 2. support frame; 21. connecting sleeve; 211. through groove; 212. protrusion; 2121. slot; 22. clamp; 23. elastic filling piece; 231. slot; 24. balance bar; 241. limit block; 242. limit hole; 25. control ring; 251. sliding hole; 252. connecting piece; 26. support leg; 27. connecting rod; 28. first elastic member; 3. universal wheel; 4. limit assembly; 41. limit bolt; 411. protrusion; 42. limit sleeve; 421. groove; 43. second elastic member. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 To Attachment Figure 4 This application is described in further detail.

[0028] Reference Figure 1 The embodiment of the present application discloses a pipeline detection device, including a transmitter and a receiver 1. The transmitter applies a signal current of a special frequency to the pipeline to be detected, and generally adopts three excitation modes: direct connection method, induction method and clamp method. Receiver 1 Receiver 1 has a built-in induction coil to receive the magnetic field signal of the pipeline. The coil generates an induced current, thereby calculating the direction and path of the pipeline. Furthermore, the pipeline detection device also includes a support frame 2, and the support frame 2 is detachably connected to the receiver 1. A plurality of universal wheels 3 are arranged at the bottom of the support frame 2, and the universal wheels 3 abut the ground. After the receiver 1 is installed in the support frame 2, there should be a gap between the lowest position of the receiver 1 and the ground, so that after the receiver 1 and the support frame 2 move, the receiver 1 does not collide with the ground surface.

[0029] In the prior art, the receiver 1 must be held and moved by hand during the detection process. Since the receiver 1 must always be kept suspended (not in contact with the ground), it is easy to cause fatigue to the detection personnel. In comparison, the present application has the innovative feature of setting a detachable support frame 2 to connect the receiver 1 with the support frame 2; when operating on flat ground, detection can be carried out by simply pushing the receiver 1 and the support frame 2 to move together, making pipeline detection more labor-saving; when encountering complex terrain, the receiver 1 and the support frame 2 can be separated to carry out more diverse detections.

[0030] Reference Figure 1 Generally speaking, the receiver 1 includes a sensing portion 11 in a strip shape with an arc-shaped longitudinal cross section, a handle 12 disposed at the end of the sensing portion 11 , and a display 13 connected to an end of the handle 12 away from the sensing portion 11 .

[0031] Reference Figure 1 and Figure 2 Specifically, the support frame 2 includes a connecting sleeve 21, a control ring 25 and a plurality of supporting legs 26.

[0032] A through slot 211 having a shape similar to the transverse cross-section of the sensing portion 11 is formed in the middle of the connecting sleeve 21 . The through slot 211 is close to a runway shape. The connecting sleeve 21 is sleeved on the middle section of the sensing portion 11 through the through slot 211 .

[0033] A plurality of legs 26 are arranged in a circular array around the connecting sleeve 21, one end of the legs 26 is rotatably connected to the connecting sleeve 21, and the other end is connected to the corresponding universal wheel 3. The control ring 25 is hollow in the middle for the sensor 11 to pass through, and a plurality of sliding holes 251 are opened around the control ring 25. A plurality of balancing rods 24 are arranged in a circumferential array around the connecting sleeve 21, and the balancing rods 24 are arranged perpendicular to the plane where the lower surface of the connecting sleeve 21 is located, one end of the balancing rod 24 is connected to the connecting sleeve 21, and the other end extends toward the universal wheel 3. The plurality of balancing rods 24 are all passed through corresponding sliding holes 251, so that the control ring 25 can move along the length direction of the balancing rods 24.

[0034] A plurality of connecting rods 27 are arranged around the control ring 25, one end of the connecting rod 27 is rotatably connected to the control ring 25, and the other end is rotatably connected to the middle position of the supporting leg 26. The control ring 25 moves along the length direction of the balance bar 24, and can drive the supporting leg 26 to rotate along the gravity direction through the plurality of connecting rods 27; when the control ring 25 moves toward the direction close to the connecting sleeve 21, the plurality of supporting legs 26 are unfolded to form an effective supporting structure to support the receiver 1 on the ground; when the control ring 25 moves away from the connecting sleeve 21, the plurality of supporting legs 26 are folded to facilitate the storage of the supporting frame 2.

[0035] The balance bar 24 is provided with a first elastic member 28, which is a spring. The first elastic member 28 is sleeved on the balance bar 24, one end of the first elastic member 28 is connected to the lower surface of the connecting sleeve 21, and the other end is connected to the upper surface of the control ring 25. The first elastic member 28 makes the control ring 25 always have a tendency to move away from the connecting sleeve 21.

[0036] The control ring 25 is provided with a limit assembly 4 for limiting the movement thereof after movement.

[0037] Reference Figure 3 Furthermore, the through slot 211 of the connecting sleeve 21 is filled with an elastic filler 23. The elastic filler 23 is preferably made of rubber. The elastic filler 23 is provided with a slot 231, and the slot 231 is interference-fitted with the receiver 1. When the receiver 1 is inserted into the slot 231, the elastic filler 23 is deformed and fits with the inner wall of the through slot 211, thereby supporting the receiver 1. Due to the trend that the width of the shape of the sensing part 11 gradually decreases from the end to the end. The inner wall of the through slot 211 can be tilted to increase the stability of the connection between the connecting sleeve 21 and the receiver 1.

[0038] Reference Figure 3 Further, a plurality of protrusions 212 are arranged in a circumferential array at one end of the connection sleeve 21. One end of the protrusion 212 is connected to the connection sleeve 21, and the other end extends in a direction away from the connection sleeve 21. The protrusion 212 has the ability to deform, and the protrusion 212 is preferably made of hard plastic. A clamp 22 is surrounded by the outer circumference of the plurality of protrusions 212, and the clamp 22 can be tightened to drive the protrusion 212 to deform so as to abut against the sensing part 11. Further, a slot 2121 is provided on the outer wall of the protrusion 212 for the clamp 22 to be inserted.

[0039] Reference Figure 2 Furthermore, a stopper 241 is provided at the end of the balance bar 24 to prevent the control ring 25 from slipping out. The diameter of the stopper 241 is larger than the diameter of the sliding hole 251.

[0040] Reference Figure 4Furthermore, the limiting assembly 4 includes a limiting bolt 41, a limiting sleeve 42 and a second elastic member 43. A connecting piece 252 extends from the bottom of the control ring 25, and the limiting assembly 4 is arranged on the connecting piece 252. The limiting sleeve 42 is arranged perpendicular to the length direction of the balance rod 24, and the limiting bolt 41 is slidably connected in the limiting sleeve 42. The balance rod 24 is provided with a limiting hole 242 for the limiting bolt 41 to slide into. One end of the limiting bolt 41 is provided with a rounded corner, and the other end slides in the limiting sleeve 42, and the end is passed through the limiting sleeve 42 and is provided with an end cover for convenient manual operation. The limiting bolt 41 is circumferentially provided with a plurality of protrusions 411, and the inner wall of the limiting sleeve 42 is provided with a plurality of grooves 421, and the grooves 421 are arranged along the length direction of the limiting sleeve 42, and the protrusions 411 move in the corresponding grooves 421 with the limiting bolt 41. The second elastic member 43 is a spring, and the second elastic member 43 is arranged in the limiting sleeve 42 so that the limiting bolt 41 always has a tendency to move in the direction of the balance bar 24. In the initial state, the limiting bolt 41 is in the limiting sleeve 42, and the second elastic member 43 is in a compressed state; when the limiting bolt 41 moves to the limiting hole 242 along with the control ring 25, the second elastic member 43 is elastically released, and the limiting bolt 41 is pushed and inserted into the limiting hole 242; when the test is completed, the limiting bolt 41 is moved by the end cover to make the limiting bolt 41 disengage from the limiting hole 242.

[0041] The implementation principle of a pipeline detection device in the embodiment of the present application is:

[0042] The support frame 2 is used to support the receiver 1. When in use, the support frame 2 is placed on the ground, and the receiver 1 is placed in the support frame 2 through the through groove 211. The elastic filler 23 is squeezed, thereby increasing the stability of the connection between the support frame 2 and the receiver 1. The plurality of protrusions 212 are pressed against the receiver 1 by tightening the clamp 22. The universal wheel 3 carries the support frame 2 and the receiver 1 to move, thereby detecting the pipeline.

[0043] The support frame 2 includes a connecting sleeve 21, a control ring 25 and a plurality of legs 26. The relative position of the control ring 25 and the connecting sleeve 21 is adjusted to expand or collapse the plurality of legs 26. When the control ring 25 slides toward the connecting sleeve 21, the plurality of legs 26 are expanded to the position where the limit bolt 41 is opposite to the limit hole 242. The limit bolt 41 slides and snaps into the limit hole 242, thereby fixing the control ring 25. After the detection is completed, the sliding limit bolt 41 is disengaged from the limit hole 242, thereby continuing to slide the control ring 25 in the reverse direction away from the connecting sleeve 21, and retrieving the plurality of legs 26. This facilitates the recovery of the support frame 2.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipeline detection device, comprising a transmitter and a receiver (1), characterized in that: The receiver (1) is detachably connected to a support frame (2), the support frame (2) being provided with a plurality of universal wheels (3) in contact with the ground, the support frame (2) supporting the receiver (1) with a gap between the support frame (2) and the ground; the support frame (2) comprising a connecting sleeve (21) for one end of the receiver (1) to pass through, one end of the connecting sleeve (21) being provided with a plurality of protruding pieces (212) in a circumferential array, the protruding pieces (212) being capable of deformation, and a plurality of protruding pieces (212) being surrounded by a clamp (22) on their outer circumferences; The support frame (2) comprises a plurality of legs (26), wherein the plurality of legs (26) are circumferentially arranged outside the connecting sleeve (21), one end of the leg (26) is connected to the connecting sleeve (21), and the other end is connected to the universal wheel (3); The supporting leg (26) is rotatably connected to the connecting sleeve (21); the supporting frame (2) further comprises a control ring (25); a plurality of balancing rods (24) are arranged on the side of the connecting sleeve (21) close to the ground along the length direction of the receiver (1); the balancing rods (24) pass through the control ring (25); the control ring (25) can move along the length direction of the balancing rods (24); a plurality of connecting rods (27) are rotatably connected to the peripheral side of the control ring (25); the ends of the connecting rods (27) are rotatably connected to the middle section of the corresponding supporting leg (26); and the control ring (25) is provided with a limit assembly (4) for limiting the movement of the control ring (25) after the control ring (25) moves.

2. A pipeline detection device according to claim 1, characterized in that: The balancing rod (24) is provided with a first elastic member (28), and the elastic member enables the control ring (25) to always have a tendency to move in a direction away from the connecting sleeve (21).

3. A pipeline detection device according to claim 1, characterized in that: The limiting assembly (4) comprises a limiting bolt (41), a limiting sleeve (42) and a second elastic member (43); the limiting sleeve (42) is arranged perpendicular to the length direction of the balance bar (24); the limiting bolt (41) is slidably connected to the limiting sleeve; the balance bar (24) is provided with a limiting hole (242) for the limiting bolt (41) to slide into; the second elastic member (43) is arranged in the limiting sleeve (42) so that the limiting bolt (41) always has a tendency to move in the direction where the balance bar (24) is located.

4. A pipeline detection device according to claim 1, characterized in that: An elastic filling piece (23) is arranged in the connecting sleeve (21), and a slot (231) is provided in the elastic filling piece (23), and the slot (231) is interference-fitted with the receiver (1).

5. A pipeline detection device according to claim 1, characterized in that: A limiting block (241) is provided at the end of the balancing rod (24) for preventing the control ring (25) from falling out.

Images