Detection device for narrow space

Abstract

The invention relates to the technical field of detection devices, and discloses a detection device for a narrow space, the narrow space comprises a pair of detection holes and a to-be-detected channel arranged between the pair of detection holes, and the detection device comprises a miniature intelligent trolley which is connected with a wire. The micro intelligent trolley is used for moving towards the other detection hole along the to-be-detected channel through one detection hole, so that the wire is arranged in the narrow space in a penetrating manner; the connecting rope mechanism is used for being detachably connected with a wire so that the connecting rope mechanism can be arranged in the narrow space in a penetrating mode along with the wire. The detection mechanism is arranged on the connecting rope mechanism; the pair of winding mechanisms are used for being arranged at the pair of detection holes, and the pair of winding mechanisms are used for being detachably connected with the two ends of the connecting rope mechanism; according to the invention, detection operation can be carried out in a narrow space, and the problem of difficult detection in the narrow space is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a detection device used in a narrow space. Background Art

[0002] The top of the generator set is usually designed to be curved, with limited space, and the internal mechanical parts may also be in a curved space. The hoods of pump stations and compressors are usually designed with curved shells and narrow internal spaces. Boilers and heat exchangers often have curved pipes and narrow inspection ports inside. The air inlets and exhaust vents of large industrial fans are often curved structures with small spaces, etc. The above facilities have the same detection difficulties. Taking the top cover of a hydro-turbine generator set as an example, the cavitation is more serious at the contact point between the upper crown of the runner and the lower part of the top cover. The degree of cavitation in this area directly affects whether the unit needs to undergo Class A maintenance. The narrow space and curved area to be tested bring inconvenience to workers' detection. If the top cover is lifted out for Class A maintenance, the cost is high, the efficiency is low, and the guidance is poor.

[0003] Therefore, there is an urgent need for a detection device for a narrow space. Summary of the invention

[0004] The object of the present invention is to provide a detection device for a narrow space, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a detection device for a narrow space, wherein the narrow space comprises a pair of detection holes and a channel to be detected arranged between the pair of detection holes, and the detection device comprises:

[0006] A miniature intelligent car connected with a wire, the miniature intelligent car is used to move through one of the detection holes along the channel to be detected toward another detection hole, so that the wire passes through the narrow space;

[0007] A connecting rope mechanism, used to be detachably connected to the wire, so that the connecting rope mechanism can be passed through the narrow space along with the wire;

[0008] A detection mechanism, arranged on the connecting rope mechanism;

[0009] A pair of winding mechanisms, used to be arranged at a pair of the detection holes, and the pair of the winding mechanisms are used to be detachably connected to the two ends of the connecting rope mechanism;

[0010] A control module is connected to the detection mechanism.

[0011] Optionally, the winding mechanism comprises:

[0012] Fixed bracket:

[0013] A winding wheel mechanism is rotatably disposed on the fixed bracket, and the winding wheel mechanism is used to be detachably connected to the connecting rope mechanism;

[0014] A driver, used for driving the pair of winding wheel mechanisms to rotate;

[0015] A controller is connected to the driver and the control module.

[0016] Optionally, the connecting rope mechanism includes a pair of steel ropes, both ends of the pair of steel ropes are detachably connected to the two winding wheel mechanisms respectively, the winding wheel mechanism can wind up any of the steel ropes individually, a plurality of support rods are connected between the pair of steel ropes, and the detection mechanism is arranged on any of the support rods.

[0017] Optionally, the winding wheel mechanism includes a pair of winding wheels, which are detachably connected to a pair of ends of the wire rope respectively, and the pair of winding wheels are connected to the driver, and the driver can drive the winding wheels to rotate independently.

[0018] Optionally, a pair of lead heads are provided on the fixed bracket, corresponding to the pair of winding wheels respectively.

[0019] Optionally, the support rod is made of memory metal.

[0020] Optionally, the detection mechanism includes:

[0021] An assembly rod connected to the connecting rope mechanism;

[0022] A macro camera is arranged on the assembly rod;

[0023] The optical fiber is arranged on the assembly rod.

[0024] Optionally, an observation component is also provided on the assembly rod.

[0025] Optionally, a refraction component is also provided on the assembly rod.

[0026] Optionally, a six-axis gyroscope is further provided between the assembly rod and the connecting rope mechanism.

[0027] The present invention discloses the following technical effects: a wire is passed through a narrow space by using a miniature intelligent vehicle, and then a connecting rope mechanism is introduced into the narrow space through the wire, so that a detection mechanism can be located in the narrow space, and then the connecting rope mechanism is reeled in by a pair of reeling mechanisms, so that the detection mechanism is displaced in the narrow space, and then the detection data of the detection mechanism is transmitted to a control module, thereby realizing detection operations in the narrow space and solving the problem of detection difficulties in the narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 It is a schematic diagram of the wire of the present invention penetrating into a narrow space;

[0030] Figure 2 is a layout diagram of a pair of winding mechanisms of the present invention;

[0031] Figure 3 It is a schematic diagram of the connection between the conductor and a pair of steel wire ropes of the present invention;

[0032] Figure 4 It is a schematic diagram of a pair of winding mechanisms and a connecting rope mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the detection mechanism of the present invention;

[0034] Figure 6 It is a schematic diagram of a pair of steel wire ropes and a plurality of support rods in the open state of the present invention.

[0035] In the figure: 1. detection hole; 2. channel to be detected; 3. micro intelligent car; 4. wire; 5. winding mechanism; 51. fixed bracket; 52. drive; 53. controller; 54. winding wheel; 55. lead head; 6. detection mechanism; 61. assembly rod; 62. observation component; 63. refraction component; 7. wire rope; 8. support rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figure 1-Figure 6 The present invention provides a detection device for a narrow space, wherein the narrow space includes a pair of detection holes 1 and a channel 2 to be detected arranged between the pair of detection holes 1, and the detection device includes:

[0039] The miniature intelligent car 3 is connected with a wire 4, and the miniature intelligent car 3 is used to move through one of the detection holes 1 along the channel to be detected 2 toward another detection hole 1, so that the wire 4 passes through a small space;

[0040] A connecting rope mechanism, used to be detachably connected to the wire 4, so that the connecting rope mechanism can be inserted into a narrow space along with the wire 4;

[0041] A detection mechanism 6 is arranged on the connecting rope mechanism;

[0042] A pair of winding mechanisms 5, used to be arranged at the pair of detection holes 1, and the pair of winding mechanisms 5 are used to be detachably connected to the two ends of the connecting rope mechanism;

[0043] The control module is connected with the detection mechanism.

[0044] By using a micro intelligent car 3 to pass the wire 4 into the narrow space, and then introduce the connecting rope mechanism into the narrow space through the wire 4, the detection mechanism 6 can be located in the narrow space, and then the connecting rope mechanism is reeled in by a pair of reeling mechanisms 5, so that the detection mechanism 6 is displaced in the narrow space, and then the detection data of the detection mechanism 6 is transmitted to the control module, thereby realizing the detection operation in the narrow space and solving the problem of detection difficulty in the narrow space.

[0045] Furthermore, the miniature intelligent car 3 is small in size and can be flexibly moved in a narrow space. It usually has an electric drive system and can be powered by a battery. The intelligent car has low cost, low energy consumption and high cost performance.

[0046] Furthermore, the control module includes a computer and a control system integrated in the computer, which is used for data collection, recording, processing, image stitching and three-dimensional modeling.

[0047] In one embodiment of the present invention, the winding mechanism comprises:

[0048] Fixing bracket 51:

[0049] A winding wheel mechanism is rotatably disposed on the fixed bracket 51, and the winding wheel mechanism is used to be detachably connected to the connecting rope mechanism;

[0050] A driver 52, used for driving a pair of winding wheel mechanisms to rotate;

[0051] The controller 53 is connected to the driver 52 and the control module.

[0052] The controller 53 controls the driver 52 to drive the winding wheel mechanism, and the winding wheel mechanism realizes the winding of the connecting rope mechanism.

[0053] In one embodiment of the present invention, the connecting rope mechanism includes a pair of steel wire ropes 7, the two ends of the pair of steel wire ropes 7 are respectively detachably connected to two winding wheel mechanisms, the winding wheel mechanism can wind up any steel wire rope 7 individually, a plurality of support rods 8 are connected between the pair of steel wire ropes 7, and the detection mechanism 6 is arranged on any support rod 8.

[0054] By setting up a pair of steel wire ropes 7 and multiple support rods 8, a tensioning structure is formed, so that the steel wire rope 7 close to the detection mechanism 6 can effectively fit the arc-shaped channel 2 to be detected, and by changing the length of the support rods 8, it can adapt to arc environments with different radii.

[0055] In one embodiment of the present invention, the winding wheel mechanism includes a pair of winding wheels 54, which are detachably connected to the ends of a pair of steel wire ropes 7 respectively, and the pair of winding wheels 54 are connected to the driver 52, and the driver 52 can drive the winding wheels 54 to rotate independently.

[0056] The wire rope 7 is driven to move away from the detection mechanism 6 by the winding wheel 54, and the detection mechanism 6 can be adjusted in angle through the lever principle to improve the detection accuracy, and the wire rope 7 is wound on the winding wheel 54 for easy storage and space saving. The controller 53 controls the driver 52 at the winding and releasing end of the winding wheel 54 to accurately release and rewind the wire and record the length of the retracted and released wire.

[0057] Furthermore, the driver 52 is two motors that drive a pair of winding wheels 54 respectively.

[0058] In one embodiment of the present invention, a pair of lead heads 55 are disposed on the fixed bracket 51 , corresponding to the pair of winding wheels 54 respectively.

[0059] In one embodiment of the present invention, the support rod 8 is made of memory metal and can restore its original shape after being bent, so as to facilitate its introduction into a narrow space.

[0060] In one embodiment of the present invention, the detection mechanism 6 comprises:

[0061] The assembly rod 61 is connected to the connecting rope mechanism;

[0062] A macro camera is provided on the assembly rod 61. The macro camera can reduce the detection distance, perform cavitation detection in a very narrow space, and accurately detect the cavitation condition;

[0063] The optical fiber is arranged on the assembly rod 61 to solve the illumination problem for the macro camera in a dark environment.

[0064] In one embodiment of the present invention, an observation component 62 is also provided on the assembly rod 61, which is responsible for checking the surrounding conditions of the macro camera, collecting detection environment data, and detecting whether there are obstacles to ensure normal illumination of the detection component.

[0065] In one embodiment of the present invention, a refraction component 63 is further provided on the assembly rod 61, which is responsible for adjusting the illumination position of the macro camera.

[0066] In one embodiment of the present invention, a six-axis gyroscope is further provided between the assembly rod 61 and the connecting rope mechanism.

[0067] Directions:

[0068] After determining the position to be tested in the narrow space, first connect the micro smart car 3 to the wire 4, then manually put the micro smart car 3 into the detection hole 1, and the micro smart car 3 will drive to the next detection hole 1 by itself, and then manually clamp the micro smart car 3 out with an endoscopic clamp.

[0069] Untie the wire 4 connected to the micro intelligent car 3, and then connect the wire 4 with the two steel ropes 7. Through the joint action of the wire 4 and the winding mechanism 5, pull the steel rope 7 through the channel to be detected 2 and the detection hole 1, and then connect the two steel ropes 7 with the winding mechanism 5. Finally, the winding mechanism 5 accurately controls the retraction and release of the two steel ropes 7, thereby adjusting the position of the detection mechanism 6 to achieve the purpose of accurately recording the cavitation position.

[0070] The two pay-off ends are controlled by motors to pay out the wires accurately. The relative movement of the two steel ropes 7 realizes the lever principle to increase the detection area of ​​the detection mechanism 6. The six-axis gyroscope accurately locates the specific position of the detection mechanism 6 to improve the accuracy of the detection result. Different pay-off and take-up speeds are used to make the detection mechanism 6 swing at different angles to observe a larger range. Finally, the two steel ropes 7 are pulled out by the winding mechanism 5, and the whole device is checked and stored for the next use.

[0071] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A detection device for a narrow space, characterized in that: The narrow space comprises a pair of detection holes (1) and a channel to be detected (2) arranged between the pair of detection holes (1), and the detection device comprises: A miniature intelligent car (3) is connected to a wire (4), and the miniature intelligent car (3) is used to move through one of the detection holes (1) along the channel to be detected (2) toward another detection hole (1), so that the wire (4) passes through the narrow space; A connecting rope mechanism, used to be detachably connected to the wire (4), so that the connecting rope mechanism can be passed through the narrow space along with the wire (4); A detection mechanism (6) is arranged on the connecting rope mechanism; A pair of winding mechanisms (5) are used to be arranged at a pair of the detection holes (1), and the pair of winding mechanisms (5) are used to be detachably connected to two ends of the connecting rope mechanism; A control module is connected to the detection mechanism.

2. A detection device for a narrow space according to claim 1, characterized in that: The reeling mechanism comprises: Fixing bracket (51): A winding wheel mechanism is rotatably arranged on the fixed bracket (51), and the winding wheel mechanism is used to be detachably connected to the connecting rope mechanism; A driver (52) for driving the pair of winding wheel mechanisms to rotate; A controller (53) is connected to the driver (52) and the control module.

3. A detection device for a narrow space according to claim 2, characterized in that: The connecting rope mechanism comprises a pair of steel wire ropes (7), the two ends of the pair of steel wire ropes (7) are respectively detachably connected to the two winding wheel mechanisms, the winding wheel mechanism can wind up any of the steel wire ropes (7) individually, a plurality of support rods (8) are connected between the pair of steel wire ropes (7), and the detection mechanism (6) is arranged on any of the support rods (8).

4. A detection device for a narrow space according to claim 3, characterized in that: The winding wheel mechanism comprises a pair of winding wheels (54) which are detachably connected to the ends of a pair of steel wire ropes (7) respectively. The pair of winding wheels (54) are connected to the driver (52), and the driver (52) can drive the winding wheels (54) to rotate independently.

5. A detection device for a narrow space according to claim 4, characterized in that: A pair of lead heads (55) are provided on the fixed bracket (51), respectively corresponding to the pair of winding wheels (54).

6. The detection device for a narrow space according to claim 3, characterized in that: The support rod (8) is made of memory metal.

7. The detection device for a narrow space according to claim 1, characterized in that: The detection mechanism (6) comprises: An assembly rod (61) connected to the connecting rope mechanism; A macro camera, arranged on the assembly rod (61); The optical fiber is arranged on the assembly rod (61).

8. The detection device for a narrow space according to claim 7, characterized in that: The assembly rod (61) is also provided with an observation assembly (62).

9. The detection device for a narrow space according to claim 7, characterized in that: The assembly rod (61) is also provided with a refraction component (63).

10. The detection device for a narrow space according to claim 7, characterized in that: A six-axis gyroscope is also arranged between the assembly rod (61) and the connecting rope mechanism.

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