A wire quality inspection device with automatic obstacle avoidance

Abstract

The invention discloses a wire quality inspection device with automatic obstacle avoidance, and relates to the technical field of wire quality inspection devices, comprising an inspection box, an inspection component and two mounting units, each mounting unit comprising a vertical pole and a running wheel, and further comprising: an auxiliary wheel component comprising an auxiliary wheel movably arranged on the vertical pole, wherein the auxiliary wheel has a limit position lifted below the wire and an obstacle avoidance position separated from the wire in the stroke of movement relative to the vertical pole; a trigger component comprising a baffle plate movably arranged on the vertical column and located in front of the auxiliary wheel, wherein the baffle plate has a blocking position blocking in front of the auxiliary wheel and a avoiding position avoiding to the side in the process of movement relative to the vertical column; a transmission component receives the action drive of the baffle plate moving from the blocking position to the avoiding position, and drives the two auxiliary wheels to move from the limit position to the obstacle avoidance position; and the elastic member drives the baffle plate to return to the blocking position and the auxiliary wheel to the limit position in the process of restoring deformation.

Description

Technical Field

[0001] The invention relates to the technical field of wire quality inspection devices, in particular to a wire quality inspection device capable of automatically avoiding obstacles. Background Art

[0002] Overhead wires are an important carrier of power transmission. Inspecting them can promptly detect problems such as damage and broken strands in the wires, prevent power transmission interruptions due to wire failures, ensure the stable operation of the power system, and provide users with a continuous and reliable power supply.

[0003] The conductor quality inspection device is an electrical device mounted on the conductor and capable of traveling along the conductor to inspect the conductor. It usually includes components such as a traveling mechanism, an inspection box (loading box), and an inspection instrument. With the increasing number of types of conductor DC inspection devices, in addition to the inspection capability of the conductor, the passability of the conductor is also an important criterion.

[0004] In the existing technology, the conductor quality inspection device already has a simple obstacle avoidance function, but it can usually only pass over obstacles such as the joint tube that slightly increase the diameter of the conductor. It cannot directly pass through special-shaped obstacles such as the shock-absorbing hammer (shock-absorbing hammer) and the wire clamp on the conductor that are dragged under the conductor. It needs to use tools such as drones or insulating operating rods to assist in passing, and the conductor passability needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a wire quality inspection device with automatic obstacle avoidance to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wire quality inspection device with automatic obstacle avoidance, comprising an inspection box, an inspection assembly and two mounting units arranged in parallel along the length direction of the wire, each mounting unit comprising a vertical pole fixedly connected to the inspection box and a running wheel rotatably connected to the vertical pole, and the mounting unit further comprises: at least one auxiliary wheel assembly, which comprises an auxiliary wheel movably arranged on the vertical pole, and the auxiliary wheel has a limit position lifted under the wire and an obstacle avoidance position separated from the wire in the stroke of movement relative to the vertical pole; a trigger assembly, which comprises a baffle movably arranged on the column and located in front of the auxiliary wheel, and the baffle has a blocking position blocking the auxiliary wheel in front of the auxiliary wheel during the movement relative to the column and a avoidance position avoiding to the side; a transmission assembly, which receives the action drive of the baffle moving from the blocking position to the avoidance position, and drives the two auxiliary wheels to move from the limit position to the obstacle avoidance position; an elastic member, which drives the baffle to return to the blocking position and the auxiliary wheel to the limit position during the process of restoring deformation.

[0007] Furthermore, the auxiliary wheel assembly also includes a support rod, a ring and a slide groove, one end of the support rod is rotatably connected to the corresponding auxiliary wheel, and the other end is fixedly connected to the ring, the slide groove is opened on the peripheral side of the vertical rod, and the slide groove includes a first vertical groove, a spiral inclined groove and a second vertical groove connected in sequence from top to bottom, and the sliding ball on the inner wall of the ring is located in the slide groove.

[0008] Furthermore, there are two auxiliary wheel assemblies, which are distributed on both sides of the traveling direction of the running wheel, and the spiral bevel grooves of the sliding grooves of the two auxiliary wheel assemblies have opposite rotation directions.

[0009] Furthermore, the transmission assembly includes a sleeve and a first rope. The sleeve is vertically slidably connected to the vertical pole, and the sleeve is coaxially rotatably connected to the circular ring. One end of the first rope is fixedly connected to the sleeve, and the other end is fixedly connected to the extension rod on the baffle after being guided by a fixed pulley.

[0010] Furthermore, the elastic member includes an elastic telescopic rod, one end of which is fixedly connected to the inspection box, and the other end of which is fixedly connected to the sliding sleeve.

[0011] Furthermore, the trigger assembly also includes a maintaining plate and a slider, the baffle is rotatably connected to a fixed rod fixedly connected to the vertical rod, the maintaining plate is rotatably connected to the baffle, the slider is slidably connected to the fixed rod along the length direction of the wire, and the maintaining plate is slidably connected to the slider in a horizontal direction perpendicular to the length direction of the wire.

[0012] Furthermore, the elastic member also includes a torsion spring, which is sleeved on the rotating shaft between the baffle plate and the fixed rod, one end of the torsion spring is fixedly connected to the fixed rod, and the other end is fixedly connected to the rotating plate.

[0013] Furthermore, the mounting unit also includes a lifting assembly, which includes: a connecting rod, which is fixedly connected to the top of the vertical pole; a hook ring, which is vertically slidably connected to the connecting rod; a second rope, one end of which is fixedly connected to the hook ring, and the other end is fixedly connected to the baffle after being guided by multiple fixed pulleys; a tensioner, which includes a plurality of spaced-apart rods, each adjacent two spaced-apart rods having a suspended counterweight body, and the second rope alternately passes through the through holes on each rod body and each counterweight body.

[0014] Furthermore, the lifting components of the two mounting units share the same connecting rod and shackle.

[0015] Furthermore, the inspection component includes a camera, an infrared thermal imager and / or an ultrasonic flaw detector.

[0016] In the above technical scheme, the present invention provides an automatic obstacle avoidance wire quality inspection device. When encountering obstacles such as shock-absorbing hammers, the baffle of the front mounting unit is pressed and squeezed by the obstacles from the blocking position to the avoidance position, thereby driving the two auxiliary wheels from the limit position to the obstacle avoidance position through the transmission component, and the auxiliary wheels avoid the shock-absorbing hammer. After the mounting unit passes through the shock-absorbing hammer, the baffle is no longer squeezed by the shock-absorbing hammer. The elastic force of the elastic member resets the baffle to the blocking position to prepare for the next obstacle avoidance, and resets the auxiliary wheels to the limit position to cooperate with the walking wheel to limit the wire again. Then the rear mounting unit starts to avoid obstacles and passes through the shock-absorbing hammer and resets according to the same principle. At the same time, only one of the two mounting units performs obstacle avoidance. When one of the mounting units avoids obstacles, the auxiliary wheels of the other mounting unit are at the limit position and limit the wire, so as to improve the stability of the entire device when passing through the shock-absorbing hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a structure of walking along a wire without avoiding obstacles provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a mounting unit provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the connection structure between the auxiliary wheel assembly and the upright pole provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of a slide provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the structure of a transmission assembly provided by an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the structure of a trigger component provided by an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the structure of a lifting assembly provided in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the structure during hoisting provided by an embodiment of the present invention;

[0026] Fig. 9 A schematic diagram of the structure of automatic obstacle avoidance provided by an embodiment of the present invention Figure I;

[0027] Fig.10 A schematic diagram of the structure of automatic obstacle avoidance provided by an embodiment of the present invention Figure II .

[0028] Description of reference numerals:

[0029] 1. Inspection box; 2. Inspection assembly; 3. Mounting unit; 31. Vertical pole; 32. Travel wheel; 33. Lifting assembly; 331. Connecting rod; 332. Hook; 333. Second slide bar; 334. Second rope; 335. Tensioner; 336. Spacer bar; 337. Counterweight; 34. Auxiliary wheel assembly; 341. Auxiliary wheel; 342. Support rod; 343. Ring; 344. Slide; 345. First vertical slot; 346. Spiral inclined slot; 347. Second vertical slot; 348. Elastic telescopic rod; 35. Transmission assembly; 351. Sliding sleeve; 352. First rope; 353. Extension rod; 36. Trigger assembly; 361. Baffle; 362. Maintaining plate; 363. Sliding block; 364. First slide bar; 365. Fixed rod; 366. Torsion spring. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-Figure 10 An embodiment of the present invention provides an automatic obstacle-avoiding wire quality inspection device, comprising an inspection box 1, an inspection component 2, and two mounting units 3 arranged in parallel along the length direction of the wire. The inspection component 2 can use existing technologies such as a camera, an infrared thermal imager, and / or an ultrasonic flaw detector. Each mounting unit 3 includes a vertical pole 31, a walking wheel 32, at least one auxiliary wheel assembly 34, a trigger assembly 36, a transmission assembly 35, and an elastic member, wherein the vertical pole 31 is fixedly connected to the inspection box 1, and the walking wheel 32 is rotatably connected to the top of the vertical pole 31.

[0032] See also Figure 3 The auxiliary wheel assembly 34 includes an auxiliary wheel 341, a support rod 342, a ring 343 and a slide groove 344. The auxiliary wheel 341 is movably arranged relative to the vertical rod 31. Specifically, one end of the support rod 342 is rotatably connected to the corresponding auxiliary wheel 341, and the other end is fixedly connected to the ring 343. The slide groove 344 is provided on the peripheral side of the vertical rod 31. Figure 4The slide groove 344 includes a first vertical groove 345, a spiral chute 346 and a second vertical groove 347 connected in sequence from top to bottom, and the sliding ball on the inner wall of the ring 343 is located in the slide groove 344. The auxiliary wheel 341 has a limit position held below the wire and an obstacle avoidance position separated from the wire in the travel relative to the vertical rod 31. When moving from the limit position to the obstacle avoidance position, the ring 343, the support rod 342 and the auxiliary wheel 341 first slide down a short distance along the first vertical groove 345 to separate the auxiliary wheel 341 from the wire, and then rotate and descend along the spiral chute 346 to turn the auxiliary wheel 341 to one side of the wire, and finally descend along the second vertical groove 347 for another distance. The number of auxiliary wheel assemblies 34 is 1 or 2. When there are 2 auxiliary wheel assemblies 34, the two auxiliary wheel assemblies 34 are distributed on both sides of the travel direction of the running wheel 32, and the spiral bevel grooves 346 of the slide grooves 344 of the two auxiliary wheel assemblies 34 have opposite rotation directions.

[0033] See also Figure 6 The trigger assembly 36 includes a baffle 361, a fixed rod 365, a maintaining plate 362, a first sliding rod 364 and a slider 363. The baffle 361 is movably arranged on the column and is located in front of the auxiliary wheel 341. Specifically, the fixed rod 365 is fixedly connected to the column 31, the baffle 361 is rotatably connected to the fixed rod 365, the maintaining plate 362 is rotatably connected to the baffle 361, the slider 363 is slidably connected to the fixed rod 365 along the length direction of the wire, and the maintaining plate 362 is slidably connected to the slider 363 along the horizontal direction perpendicular to the length direction of the wire. During the movement of the baffle plate 361 relative to the column, there is a blocking position for blocking in front of the auxiliary wheel 341 and a avoiding position for avoiding to the side. When moving from the blocking position to the avoiding position, the baffle plate 361 rotates to the side of the shock-absorbing hammer, driving the maintaining plate 362 to slide relative to the slider 363 and relative to the fixed rod 365, so that the maintaining plate 362 also moves to the side of the shock-absorbing hammer.

[0034] See also Figure 5 The transmission assembly 35 includes a sleeve 351 and a first rope 352. The sleeve 351 is vertically slidably connected to the upright pole 31, and the sleeve 351 is coaxially rotatably connected to the ring 343. One end of the first rope 352 is fixedly connected to the sleeve, and the other end is fixedly connected to the extension rod 353 on the baffle 361 after being guided by a fixed pulley. The transmission assembly 35 can be driven by the movement of the baffle 361 from the blocking position to the avoidance position, and drive the two auxiliary wheels 341 to move from the limit position to the obstacle avoidance position. Specifically, when the baffle 361 rotates toward the avoidance position, the first rope 352 is pulled by the extension rod 353, and the first rope 352 then pulls the sleeve 351 downward, and the sleeve 351 drives the auxiliary wheel assembly 34 to move along the slide groove 344, so that the auxiliary wheel 341 moves from the limit position to the obstacle avoidance position.

[0035] The elastic member includes a first elastic unit and a second elastic unit. The first elastic unit is an elastic telescopic rod 348, one end of which is fixedly connected to the inspection box 1, and the other end is fixedly connected to the sliding sleeve 351; or the first elastic unit is a tension spring, the upper end of which is fixedly connected to the top of the vertical rod 31, and the lower end is fixedly connected to the sliding sleeve 351. The second elastic unit is a torsion spring 366, which is sleeved on the rotating shaft between the baffle 361 and the fixed rod 365, one end of which is fixedly connected to the fixed rod 365, and the other end is fixedly connected to the rotating plate; or the second elastic unit is a compression spring, which is sleeved on the first sliding rod 364, one end of which abuts the maintaining plate 362, and the other end abuts the slider 363. In short, the process of the second elastic unit of the elastic member restoring the deformation (releasing the elastic force) drives the baffle 361 to return to the blocking position, and the process of the first elastic unit of the elastic member restoring the deformation drives the auxiliary wheel 341 to return to the limiting position.

[0036] At least one of the traveling wheels 32 of the mounting unit 3 is a driving wheel, which is driven by a driving motor arranged on the inspection box 1 or the upright 31 through a belt assembly, a chain assembly or a gear set, or the driving wheel can be driven by a built-in hub motor.

[0037] In the above technical solution, when encountering obstacles such as the anti-shock hammer, the baffle plate 361 of the mounting unit 3 located in the front of the traveling direction is pressed by the obstacle from the blocking position to the avoiding position, thereby driving the two auxiliary wheels 341 from the limiting position to the obstacle avoiding position through the transmission component 35, and the auxiliary wheels 341 avoid the anti-shock hammer. After the baffle plate 361 passes the anti-shock hammer, since the auxiliary wheels 341 have not completely passed the anti-shock hammer, the function of the maintaining plate 362 is to continue to press the maintaining plate 362 after the anti-shock hammer squeezes the baffle plate 361, so that the auxiliary wheels 341 continue to squeeze the baffle plate 361. Continue to maintain the obstacle avoidance position, so that the auxiliary wheel 341 completely passes the shockproof hammer in the obstacle avoidance position state, and then the maintaining plate 362 also passes the shockproof hammer, and the elastic force of the first elastic member causes the baffle 361 to rotate and reset from the avoidance position to the blocking position, and the maintaining plate 362 and the slider 363 are also reset accordingly to prepare for the next obstacle avoidance. The elastic force of the second elastic unit is also released, so that the sliding sleeve 351 moves up, so that the two auxiliary wheels 341 move from the obstacle avoidance position to the limit position and continue to cooperate with the walking wheel 32 limit wire, and the mounting unit 3 located in the front passes the shockproof hammer smoothly. Then the mounting unit 3 at the rear starts to avoid obstacles, pass the shockproof hammer and reset according to the same principle. At the same time, only one of the two mounting units 3 performs obstacle avoidance action, refer to Fig. 9 , Fig.10 When one of the mounting units 3 avoids obstacles, the auxiliary wheel 341 of the other mounting unit 3 is in the limiting position limiting wire to improve the stability of the entire device when passing through the shock-absorbing hammer.

[0038] In another embodiment provided by the present invention, the mounting unit 3 further includes a lifting assembly 33, which can help the device to autonomously raise and lower the conductor with the assistance of a drone. Figure 7 The lifting assembly 33 includes a connecting rod 331, a hook ring 332, a second sliding rod 333, a second rope 334 and a tensioner 335, wherein the connecting rod 331 is fixedly connected to the top of the vertical rod 31, the second sliding rod 333 is vertically slidably connected to the sliding hole on the connecting rod 331, the upper and lower ends of the second vertical rod are provided with end caps, and the end caps cannot pass through the sliding holes, and the hook ring 332 is fixedly connected to the top end cap of the second sliding rod 333, so that the hook ring 332 is vertically slidably connected with the connecting rod 331. One end of the second rope 334 is fixedly connected to the hook ring 332, and the other end is fixedly connected to the baffle 361 or the slider 363 after being guided by a plurality of fixed pulleys. The tensioner 335 includes a plurality of spaced rods 336 arranged at intervals, and each adjacent spaced rod 336 has a suspended counterweight 337. The second rope 334 alternately passes through the through holes on each rod and each counterweight 337. After the baffle 361 is squeezed by the shock-absorbing hammer and rotates to the avoidance position, the second rope 334 will become loose, and each counterweight 337 of the tensioner 335 sinks under gravity so as to tension the second rope 334, thereby preventing the second rope 334 from escaping from the fixed pulley or getting entangled with other components. In addition, the sum of the gravity received by each counterweight 337 should be less than the elastic force of the second elastic unit, including the elastic force of the second elastic unit when the baffle 361 is in the blocking position. Of course, the lifting components 33 of the two mounting units 3 share the same connecting rod 331, the second sliding rod 333 and the hook ring 332.

[0039] In this embodiment, when the device is lifted, the hook ring 332 is hooked and lifted by tools such as drones and insulating operating rods. The hook ring 332 and the second slide bar 333 are lifted first, and the hook ring 332 moves upward relative to the connecting rod 331 through the second slide bar 333 until the end cap at the bottom of the second slide bar 333 abuts against the connecting rod 331. During this period, the rising hook ring 332 pulls the slider 363 or the baffle 361 through the second pull rope, so that the baffle 361 moves from the blocking position to the avoidance position, and the baffle 361 moves the auxiliary wheel 341 from the limit position to the obstacle avoidance position through the transmission assembly 35. Figure 8 Of course, the gravity exerted on the inspection box 1 is much greater than the sum of the elastic forces of the first elastic unit and the second elastic unit; next, the hook ring 332 drives the connecting rod 331 to lift together, thereby lifting the entire device, and the running wheels 32 of the two mounting units 3 can be mounted on the wire, or the running wheels 32 of the two mounting units 3 can be removed from the wire, thereby realizing autonomous upper and lowering of the wire.

[0040] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wire quality inspection device with automatic obstacle avoidance, comprising an inspection box, an inspection assembly and two mounting units arranged in parallel along the length direction of the wire, each mounting unit comprising a vertical pole fixedly connected to the inspection box and a running wheel rotatably connected to the vertical pole, characterized in that: The mounting unit also includes: At least one auxiliary wheel assembly, comprising an auxiliary wheel movably arranged on the vertical pole, wherein the auxiliary wheel has a limit position under the conductor and an obstacle avoidance position away from the conductor in the travel of the auxiliary wheel relative to the vertical pole; The trigger assembly includes a baffle plate movably arranged on the column and located in front of the auxiliary wheel, and the baffle plate has a blocking position in front of the auxiliary wheel and a avoiding position to avoid to the side during the movement of the baffle plate relative to the column; A transmission assembly, which receives the action drive of the baffle plate moving from the blocking position to the avoiding position, and drives the two auxiliary wheels to move from the limiting position to the obstacle avoiding position; The elastic member, during the process of restoring its deformation, drives the baffle to return to the blocking position and the auxiliary wheel to return to the limiting position; The auxiliary wheel assembly also includes a support rod, a circular ring and a slide groove, one end of the support rod is rotatably connected to the corresponding auxiliary wheel, and the other end is fixedly connected to the circular ring, the slide groove is opened on the peripheral side of the vertical rod, and the slide groove includes a first vertical groove, a spiral inclined groove and a second vertical groove connected in sequence from top to bottom, and the sliding ball on the inner wall of the circular ring is located in the slide groove; The transmission assembly includes a sleeve and a first rope, wherein the sleeve is vertically slidably connected to the vertical pole, and the sleeve is coaxially rotatably connected to the ring, one end of the first rope is fixedly connected to the sleeve, and the other end is fixedly connected to the extension rod on the baffle after being guided by a fixed pulley; The trigger assembly also includes a maintaining plate and a slider. The baffle is rotatably connected to a fixed rod fixedly connected to the vertical rod. The maintaining plate is rotatably connected to the baffle. The slider is slidably connected to the fixed rod along the length direction of the wire. The maintaining plate is slidably connected to the slider along a horizontal direction perpendicular to the length direction of the wire.

2. The automatic obstacle avoidance wire quality inspection device according to claim 1, characterized in that: There are two auxiliary wheel assemblies, which are distributed on both sides of the traveling direction of the running wheel, and the spiral bevel grooves of the sliding grooves of the two auxiliary wheel assemblies have opposite rotation directions.

3. The automatic obstacle avoidance wire quality inspection device according to claim 1, characterized in that: The elastic member comprises an elastic telescopic rod, one end of which is fixedly connected to the inspection box, and the other end of which is fixedly connected to the sliding sleeve.

4. The automatic obstacle avoidance wire quality inspection device according to claim 1, characterized in that: The elastic member also includes a torsion spring, which is sleeved on the rotating shaft between the baffle plate and the fixed rod. One end of the torsion spring is fixedly connected to the fixed rod, and the other end is fixedly connected to the rotating plate.

5. The automatic obstacle avoidance wire quality inspection device according to claim 1, characterized in that: The mounting unit further includes a lifting assembly, and the lifting assembly includes: A connecting rod, which is fixedly connected to the top of the vertical pole; A hook ring is vertically slidably connected to the connecting rod; A second rope, one end of which is fixedly connected to the hook ring, and the other end of which is fixedly connected to the baffle after being guided by a plurality of fixed pulleys; The tensioner comprises a plurality of spaced-apart rods, each of which has a suspended counterweight body between two adjacent spaced-apart rods, and a second rope alternately passes through the through holes on each rod body and each counterweight body.

6. The automatic obstacle avoidance wire quality inspection device according to claim 5, characterized in that: The lifting components of the two mounting units share the same connecting rod and shackle.

7. The automatic obstacle avoidance wire quality inspection device according to claim 1, characterized in that: The inspection component includes a camera, an infrared thermal imager and / or an ultrasonic flaw detector.

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