Endoscopic detection equipment for drainage pipeline

Abstract

The invention relates to the technical field of drainage pipeline detection, and discloses an endoscopic detection device for a drainage pipeline, which comprises a detection assembly and a detection assembly, the detection assembly comprises a walking vehicle, the walking vehicle is provided with a detection head, and the tail part of the walking vehicle is connected with a wire; the positioning assembly is arranged on the wire and comprises a positioning piece, the positioning piece comprises a guide wheel located on the outer side of the wire, a fixing column is fixed in the guide wheel, a connecting plate is rotationally connected to the outer side of the fixing column, a connecting rod is fixed to the top of the connecting plate, and a winding wheel is arranged on the top of the connecting rod. The beneficial effects of the invention are that through the arrangement of the positioning assembly, the cable can be kept in a stable bending state and does not rub with the inner wall of the pipeline, thereby avoiding signal interruption or equipment short circuit caused by wear of an outer sheath of the cable, conductor fracture and cracking of an insulating layer, eliminating the influence of frictional resistance on the connection point of the detection head and the walking mechanism, and improving the detection precision. Detection interruption caused by disconnection of the two is avoided, and the detection process is continuous and stable.

Description

Technical Field

[0001] This invention relates to the field of drainage pipe inspection technology, and in particular to an endoscopic inspection device for drainage pipes. Background Technology

[0002] As a core component of urban underground infrastructure, the operational status of drainage pipelines directly affects the city's flood control and drainage capabilities and water environment quality. Endoscopic inspection equipment has become the mainstream technical means for pipeline defect detection due to its advantages such as non-destructiveness, visualization, and high detection accuracy. This type of equipment typically consists of three parts: a probe head equipped with a camera module, a cable for transmitting signals and providing traction, and a ground control terminal. By moving the probe head inside the pipeline, it can achieve real-time acquisition and data transmission of the condition of the pipeline's inner wall.

[0003] At pipe bends, the cables of endoscopic inspection equipment exhibit significant lack of constraint. This problem directly leads to uncontrolled cable posture, with the cable in a free, unguided state at the bend. As the probe moves, the cable continuously rubs against the inner wall of the pipe, causing wear on the outer sheath of the conductor and secondary scratches on the inner wall. Simultaneously, when the cable is pulled, it can bend excessively, leading to conductor breakage and insulation cracking, resulting in signal interruption or short circuit. Furthermore, the frictional resistance between the cable and the inner wall of the pipe during bending is directly transmitted to the connection point between the probe and the traveling mechanism, causing the connection between the cable and the traveling mechanism to break, thus interrupting the inspection. Summary of the Invention

[0004] In view of the problems existing in the above and / or existing endoscopic inspection devices for drainage pipes, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the endoscopic inspection equipment at the bend of the pipeline has a lack of cable constraint, uncontrolled posture and friction damage, excessive bending and core breakage and short circuit, and resistance causes connection failure and interruption of inspection.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an endoscopic inspection device for drainage pipes, comprising an inspection component, including a traveling vehicle, wherein a probe is mounted on the traveling vehicle, and a wire is connected to the rear of the traveling vehicle; A positioning component, disposed on the conductor, includes a positioning element. The positioning element includes a guide wheel located outside the conductor. A fixing post is fixed inside the guide wheel. A connecting plate is rotatably connected to the outside of the fixing post. A connecting rod is fixed to the top of the connecting plate. A winding wheel is disposed at the top of the connecting rod. A pull rope is fixed to the outside of the winding wheel. An elastic rod is fixed to one side of the connecting plate. A support frame is disposed at the bottom of the guide wheel. A pulley is disposed on one side of the support frame. A rotating post is fixed to one side of the winding wheel. A motor is disposed at the end of the rotating post.

[0007] As a preferred embodiment of the endoscopic inspection device for drainage pipes according to the present invention, the positioning component further includes a pushing member, the pushing member including a push column located at the top of the elastic rod, a connecting column fixed to one side of the push column, a movable rod fixed to the end of the connecting column, a support rod fixed to one side of the connecting plate, a positioning shaft rotatably connected inside the support rod, a force-bearing plate fixed to the bottom end of the positioning shaft, a rotating rod rotatably connected to the outside of the positioning shaft, a sliding shaft fixed to the top of the movable rod, a sliding groove opened on the rotating rod, and the sliding shaft sliding in the sliding groove.

[0008] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, a pressing block is fixed to one side of the positioning shaft, a force-bearing shaft is fixed to the top of the rotating rod, a torsion spring is fixed to the outside of the positioning shaft, and the other end of the torsion spring is fixed to the support rod.

[0009] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, the positioning component further includes a support member, the support member including a mounting plate fixed to one side of the connecting plate, a rotating sleeve rotatably connected inside the mounting plate, a gear fixed to the outside of the rotating sleeve, a rotating rod fixed to one side of the gear, and a top plate provided at the end of the rotating rod.

[0010] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, the positioning component further includes a rotating component, the rotating component including a movable column inserted into the rotating sleeve, a fixed shaft fixed inside the rotating sleeve, a spiral groove on the movable column, the fixed shaft sliding in the spiral groove, a movable plate fixed at the end of the movable column, and a push rod provided on the outside of the rotating column.

[0011] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, the push rod is fixed with a fixed frame at the top, a locking block is provided inside the fixed frame, a locking groove is provided on the rotating column, the locking block engages with the locking groove, a first spring is fixed at the top of the locking block, and a stop block is fixed on one side of the connecting rod.

[0012] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, the bottom sides of the card block are inclined, and there are multiple card slots that are evenly distributed in a ring on the outside of the rotating column.

[0013] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, the positioning component further includes a locking member, the locking member including a limiting post, the fixing post having a limiting hole, and the limiting post engaging with the limiting hole.

[0014] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, a stabilizing frame is fixed to the top of the connecting plate, a fixing plate is fixed to the outside of the limiting post, a second spring is fixed to one side of the fixing plate, and the other end of the second spring is fixed to the stabilizing frame.

[0015] As a preferred embodiment of the endoscopic inspection device for drainage pipes described in this invention, wherein: a force-bearing rod is fixed to the end of the limiting column, the force-bearing rod is inclined and contacts the push rod.

[0016] The beneficial effects of this invention are as follows: by setting the positioning component, the cable can be kept in a stable bending state and will not rub against the inner wall of the pipe, thereby avoiding signal interruption or equipment short circuit caused by wear of the cable outer sheath, conductor breakage, and insulation layer cracking. At the same time, it eliminates the influence of frictional resistance on the connection point between the probe and the walking mechanism, avoids detection interruption caused by disconnection of the two, and ensures continuous and stable detection process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an overall structural diagram of an endoscopic inspection device used for drainage pipes.

[0018] Figure 2 This is a structural diagram of the positioning component of an endoscopic inspection device used for drainage pipes.

[0019] Figure 3 This is a structural diagram of the positioning component for an endoscopic inspection device used in drainage pipes.

[0020] Figure 4 Endoscopic inspection equipment for drainage pipes Figure 3 Enlarged view of the structure at point A in the middle.

[0021] Figure 5 This is a structural diagram of the pusher component of an endoscopic inspection device used for drainage pipes.

[0022] Figure 6 Endoscopic inspection equipment for drainage pipes Figure 5 Enlarged view of the structure at point B in the middle.

[0023] Figure 7 This is a structural diagram of the support component for an endoscopic inspection device used in drainage pipes.

[0024] Figure 8This is a structural diagram of the rotating component of an endoscopic inspection device used for drainage pipes.

[0025] Figure 9 This is a cross-sectional structural diagram of the fixed frame of an endoscopic inspection device used for drainage pipes.

[0026] Figure 10 This is a top view of a partial structural diagram of the connection plate of an endoscopic inspection device used for drainage pipes.

[0027] Figure 11 This is a structural diagram of another state of the guide wheel of an endoscopic inspection device used for drainage pipes.

[0028] In the diagram: 1. Detection component; 11. Walking vehicle; 12. Detector head; 13. Wire; 2. Positioning component; 21. Positioning element; 211. Guide wheel; 212. Fixed column; 213. Connecting plate; 214. Connecting rod; 215. Rewinding wheel; 216. Pull rope; 217. Elastic rod; 218. Support frame; 219. Pulley; 210. Rotating column; 2111. Motor; 22. Pushing element; 221. Push column; 222. Connecting column; 223. Movable rod; 224. Support rod; 225. Positioning shaft; 226. Force plate; 227. Rotating rod; 228. Sliding shaft; 227-1. Slide groove; 225-1. 225-2, Extrusion block; 225-2, Force-bearing shaft; 229, Torsion spring; 23, Support component; 231, Mounting plate; 232, Rotating sleeve; 233, Gear; 234, Rotating rod; 235, Top plate; 24, Rotating component; 241, Movable column; 242, Fixed shaft; 241-1, Spiral groove; 243, Moving plate; 244, Push rod; 245, Fixed frame; 246, Locking block; 210-1, Locking groove; 247, First spring; 248, Stop block; 25, Locking component; 251, Limiting column; 212-1, Limiting hole; 252, Stabilizing frame; 253, Fixed plate; 254, Second spring; 255, Force-bearing rod. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0032] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides an endoscopic inspection device for drainage pipes. The endoscopic inspection device for drainage pipes includes a detection component 1, including a traveling vehicle 11. A probe 12 is installed on the traveling vehicle 11. A wire 13 is connected to the rear of the traveling vehicle 11. The other end of the wire 13 is connected to a display device. The traveling vehicle 11 is placed inside the pipe, and the inside of the pipe is detected by the probe 12. The detection image is transmitted to the display device in real time through the wire 13, thereby completing the detection of the inside of the pipe. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0033] Positioning component 2, disposed on conductor 13, includes positioning element 21. Positioning element 21 includes guide wheel 211 located outside conductor 13. A fixing post 212 is fixed inside the guide wheel 211. A connecting plate 213 is rotatably connected to the outside of the fixing post 212. There are four guide wheels 211, which are located in pairs at two positions outside conductor 13 and enclose conductor 13. There are four connecting plates 213, which are located in pairs at the bottom and top of two guide wheels 211. The two guide wheels 211 are connected by the cooperation of the connecting plate 213 and the fixing post 212.

[0034] A connecting rod 214 is fixed to the top of the connecting plate 213. There are two connecting rods 214. The two connecting rods 214 are fixed to the connecting plate 213 respectively, and the ends of the two connecting rods 214 are rotatably connected through a rotating shaft to connect the two sets of guide wheels 211.

[0035] A take-up wheel 215 is provided at the top of the connecting rod 214. A pull rope 216 is fixed to the outside of the take-up wheel 215. The other end of the pull rope 216 is fixed to the top of another connecting rod 214. An elastic rod 217 is fixed to one side of the connecting plate 213. The elastic rod 217 is elastic and can bend under force. A stabilizing frame is fixed to the bottom of the two connecting rods 214. The elastic rod 217 is movably connected to the stabilizing frame.

[0036] The bottom of the guide wheel 211 is provided with a support frame 218. There are two support frames 218, which are fixed to the bottom of the two connecting plates 213 respectively. A pulley 219 is provided on one side of the support frame 218. The support frame 218 and the pulley 219 cooperate to support the guide wheel 211 so that it can move with the wire 13 in the pipe.

[0037] A rotating column 210 is fixed on one side of the winding reel 215. A motor 2111 is provided at the end of the rotating column 210. The output shaft of the motor 2111 is fixed to the rotating column 210. The motor 2111 is fixed to the top of the connecting rod 214 through a connecting frame.

[0038] When the traveling vehicle 11 moves the wire 13 inside the pipe, the two sets of guide wheels 211 follow the wire 13. When the wire 13 enters the curved position inside the pipe, the starting motor 2111 drives the rotating column 210 to rotate, causing the rotating column 210 to drive the winding wheel 215 to wind the pull rope 216. The pull rope 216 drives the two sets of guide wheels 211 to move closer. At this time, the connection point of the two connecting rods 214 will bend, causing the two sets of guide wheels 211 to bend as well. As the guide wheels 211 move, the two sets of guide wheels 211 are positioned on both sides of the curved pipe. At this time, the two sets of guide wheels 211 are bent at an angle corresponding to the pipe, thereby constraining the curved wire 13 by the guide wheels 211, keeping the wire 13 in a stable curved state and preventing it from rubbing against the inner wall of the pipe. This avoids signal interruption or equipment short circuit caused by wear of the outer sheath of the wire 13, conductor breakage, and insulation layer cracking. At the same time, it eliminates the influence of frictional resistance on the connection point between the probe and the traveling mechanism, avoiding detection interruption caused by disconnection of the two, and ensuring continuous and stable detection process.

[0039] The elastic rod 217 will bend synchronously after the two connecting rods 214 bend. Example

[0040] Reference Figures 5-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, the positioning component 2 also includes a pusher 22, which includes a pusher 221 located at the top of the elastic rod 217. The pusher 221 is U-shaped and located in the middle of the elastic rod 217. A connecting column 222 is fixed on one side of the pusher 221, and a stabilizing column is fixed inside the stabilizing frame. The stabilizing column is movably connected to the connecting column 222 for positioning the connecting column 222.

[0042] A movable rod 223 is fixed to the end of the connecting column 222, and a support rod 224 is fixed to one side of the connecting plate 213. A positioning shaft 225 is rotatably connected inside the support rod 224. A force-bearing plate 226 is fixed to the bottom of the positioning shaft 225. There are two force-bearing plates 226, which are located on both sides of the two guide wheels 211 near the traveling vehicle 11. There are two structures corresponding to the force-bearing plates 226.

[0043] A rotating rod 227 is rotatably connected to the outside of the positioning shaft 225. A sliding shaft 228 is fixed to the top of the movable rod 223. A groove 227-1 is provided on the rotating rod 227, and the sliding shaft 228 slides in the groove 227-1.

[0044] Specifically, a pressing block 225-1 is fixed to one side of the positioning shaft 225, a force-bearing shaft 225-2 is fixed to the top of the rotating rod 227, a torsion spring 229 is fixed to the outside of the positioning shaft 225, and the other end of the torsion spring 229 is fixed to the support rod 224. The torsion spring 229 is used to position the positioning shaft 225 and the force-bearing plate 226, so that the force-bearing plate 226 can be kept in its current state. Through the cooperation of the pressing block 225-1 and the force-bearing shaft 225-2, the force-bearing plate 226 can have a free clearance for rotation, so as to prevent the rotating rod 227 from rotating when the force-bearing plate 226 initially rotates.

[0045] When the wire 13 enters the curved pipe, it will bend under the tension of the traveling vehicle 11. The bent wire 13 will push the force plate 226 in the bending direction to rotate. The force plate 226 drives the positioning shaft 225 and the pressing block 225-1 to rotate, so that the pressing block 225-1 moves closer to the force shaft 225-2 and pushes the force shaft 225-2 and the rotating rod 227 to rotate. When the rotating rod 227 rotates, it will drive the movable rod 223 to move through the cooperation of the sliding shaft 228 and the slide groove 227-1. The movable rod 223 drives the connecting column 222 and the push column 221 to move, and the push column 221 applies a lateral thrust to the center of the elastic rod 217, so that the elastic rod 217 can bend.

[0046] Therefore, when the two sets of guide wheels 211 approach each other, they will not be resisted, and a lateral thrust can be applied to the connection of the two connecting rods 214, so that the connection can be bent. The direction in which the wire 13 bends will cause the elastic rod 217 to bend in the corresponding direction, so that the two sets of guide wheels 211 bend in a direction that corresponds to the bending direction of the pipe, and there will be no reverse bending.

[0047] Specifically, the positioning component 2 also includes a support member 23. The support member 23 includes a mounting plate 231 fixed to one side of the connecting plate 213. A rotating sleeve 232 is rotatably connected inside the mounting plate 231. There are two rotating sleeves 232, located on both sides of the mounting plate 231 respectively. A gear 233 is fixed to the outside of the rotating sleeve 232. There are two gears 233, fixed to the outside of the two rotating sleeves 232 respectively. The two gears 233 mesh and are half-gears.

[0048] A rotating rod 234 is fixed to one side of the gear 233. A top plate 235 is provided at the end of the rotating rod 234. Two rotating rods 234 are provided on one gear 233. The lower rotating rod 234 is fixed to the gear 233. The upper rotating rod 234 is rotatably connected to the lower rotating rod 234 through a rotating shaft. The two rotating rods 234 are in a V-shape, and the end of the upper rotating rod 234 is rotatably connected to the top plate 235 through a rotating shaft.

[0049] When gear 233 rotates, it drives the lower rotating rod 234 to rotate upward, and at the same time, the upper rotating rod 234 drives the top plate 235 to move upward, so that the top plate 235 contacts and presses against the inner top wall of the pipe, thereby locking the position of the two sets of guide wheels 211 at the bending position of the pipe. Example

[0050] Reference Figures 8-11 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, the positioning component 2 also includes a rotating component 24, which includes a movable column 241 inserted into the rotating sleeve 232. A fixed shaft 242 is fixed inside the rotating sleeve 232. A spiral groove 241-1 is provided on the movable column 241. The fixed shaft 242 slides in the spiral groove 241-1. A movable plate 243 is fixed at the end of the movable column 241. The movable plate 243 is movably connected to the top of the connecting plate 213. A push rod 244 is provided on the outside of the rotating column 210.

[0052] When the rotating column 210 rotates, it will simultaneously drive the push rod 244 to rotate, and bring the push rod 244 close to the moving plate 243, and push the moving plate 243 to move, so that the moving plate 243 drives the movable column 241 into the rotating sleeve 232. At this time, the fixed shaft 242 will slide in the spiral groove 241-1. Through the cooperation of the two, the rotating sleeve 232 is driven to rotate, and then the gear 233 can be driven to rotate through the rotating sleeve 232.

[0053] Specifically, a fixed frame 245 is fixed to the top of the push rod 244, a locking block 246 is provided inside the fixed frame 245, a locking groove 210-1 is provided on the rotating column 210, the locking block 246 engages with the locking groove 210-1, a first spring 247 is fixed to the top of the locking block 246, and a stop block 248 is fixed to one side of the connecting rod 214.

[0054] Specifically, the bottom sides of the locking block 246 are inclined, and there are multiple locking slots 210-1, which are evenly distributed in a ring on the outside of the rotating column 210. When the rotating column 210 rotates in the opposite direction, it will drive the push rod 244 to rotate in the opposite direction and reset. After the push rod 244 is reset, it will contact the stop block 248 and be blocked by the stop block 248 and cannot continue to rotate.

[0055] The push rod 244 is connected to the rotating column 210 by the cooperation of the locking block 246 and the locking slot 210-1. When the rotating column 210 rotates, it can drive the push rod 244 to rotate. When the moving plate 243 cannot move and restricts the rotation of the push rod 244, the rotating column 210 will continue to rotate, which will cause the locking block 246 to separate from the locking slot 210-1, thereby avoiding the rotation of the rotating column 210 from being blocked. The first spring 247 is used to apply a pushing force to the locking block 246, so that the locking block 246 and the locking slot 210-1 are more securely engaged.

[0056] Specifically, the positioning component 2 also includes a locking component 25, which includes a limiting post 251. A limiting hole 212-1 is provided on the fixing post 212. The limiting post 251 engages with the limiting hole 212-1. The two work together to lock the fixing post 212 and the guide wheel 211, preventing the guide wheel 211 from rotating. Since the friction between the guide wheel 211 and the wire 13 is large, the wire 13 can drive the guide wheel 211 to move when it moves.

[0057] There are multiple limiting holes 212-1, which are evenly distributed in a ring on the outside of the fixed post 212. By setting multiple limiting holes 212-1, the guide wheel 211 can be locked at any angle of rotation. Specifically, a stabilizing frame 252 is fixed to the top of the connecting plate 213, a fixing plate 253 is fixed to the outside of the limiting post 251, a second spring 254 is fixed to one side of the fixing plate 253, and the other end of the second spring 254 is fixed to the stabilizing frame 252.

[0058] Specifically, a force-bearing rod 255 is fixed to the end of the limiting post 251. The force-bearing rod 255 is inclined and in contact with the push rod 244.

[0059] When the push rod 244 rotates, it will separate from the force rod 255. At this time, the second spring 254 will apply a pushing force to the fixed plate 253, and through the fixed plate 253, it will drive the limiting post 251 to separate from the limiting hole 212-1, thereby releasing the restriction on the guide wheel 211.

[0060] When the push rod 244 rotates in the opposite direction to reset, it will contact the inclined force rod 255 and push the force rod 255 to move, so that the force rod 255 drives the limiting post 251 to engage with the limiting hole 212-1.

[0061] The elastic force of the first spring 247 is greater than that of the second spring 254, which ensures that the locking block 246 will not separate from the locking groove 210-1 when the push rod 244 pushes the force rod 255 to move.

[0062] In use, when the traveling carriage 11 moves the guide wire 13 inside the pipe, the two sets of guide wheels 211 will follow the guide wire 13. When the guide wire 13 enters the bending position inside the pipe, it will bend due to the pulling force of the traveling carriage 11. The bent guide wire 13 will push the force plate 226 in the bending direction to rotate. The force plate 226 drives the positioning shaft 225 and the pressing block 225-1 to rotate, so that the pressing block 225-1 is close to the force shaft 225-2 and pushes the force shaft 225-2 and the rotating rod 227 to rotate. When the rotating rod 227 rotates, it will drive the movable rod 223 to move through the cooperation of the sliding shaft 228 and the slide groove 227-1. The movable rod 223 drives the connecting column 222 and the push column 221 to move, and the push column 221 applies a lateral thrust to the center of the elastic rod 217, so that the elastic rod 217 can bend.

[0063] At the same time, the starter motor 2111 drives the rotating column 210 to rotate, causing the rotating column 210 to drive the winding wheel 215 to wind the pull rope 216. The pull rope 216 drives the two sets of guide wheels 211 to move closer together. At this time, the connection point of the two connecting rods 214 will bend, which will also cause the two sets of guide wheels 211 to bend. As the guide wheels 211 move, the two sets of guide wheels 211 are located on both sides of the curved pipe. At this time, the two sets of guide wheels 211 are bent to an angle corresponding to the pipe, which can constrain the curved wire 13 by the guide wheels 211, so that the wire 13 remains in a stable bent state and does not rub against the inner wall of the pipe. This avoids signal interruption or equipment short circuit caused by wear of the outer sheath of the wire 13, conductor breakage, and insulation layer cracking. At the same time, it eliminates the influence of frictional resistance on the connection point between the probe and the traveling mechanism, avoiding detection interruption caused by the disconnection of the two, and ensuring the continuous and stable detection process.

[0064] When the rotating column 210 rotates, it simultaneously drives the push rod 244 to rotate, bringing the push rod 244 closer to the moving plate 243 and pushing the moving plate 243 to move. This causes the moving plate 243 to drive the movable column 241 into the rotating sleeve 232. At this time, the fixed shaft 242 will slide in the spiral groove 241-1. Through the cooperation of the two, the rotating sleeve 232 is driven to rotate, which in turn drives the gear 233 to rotate. When the gear 233 rotates, it drives the lower rotating rod 234 to rotate upward, and at the same time, the upper rotating rod 234 drives the top plate 235 to move upward, so that the top plate 235 contacts and presses against the inner top wall of the pipe. This locks the positions of the two sets of guide wheels 211 at the pipe bend position, preventing the guide wheels 211 from moving and causing the positioning of the wire 13 to be offset.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A borescopic inspection apparatus for a sewer pipe, characterized by: The utility model relates to a kind of detection device, including, Positioning assembly (2) is arranged on the guide wire (13), including positioning piece (21), the positioning piece (21) includes guide wheel (211) located the outside of the guide wire (13), fixed column (212) is fixed in the guide wheel (211), rotatingly connected with connecting plate (213) outside the fixed column (212), connecting rod (214) is fixed on the top of the connecting plate (213), winding wheel (215) is arranged on the top of the connecting rod (214), pull rope (216) is fixed outside the winding wheel (215), elastic rod (217) is fixed on the side of the connecting plate (213), support frame (218) is arranged on the bottom of the guide wheel (211), pulley (219) is arranged on the side of the support frame (218), rotating column (210) is fixed on the side of the winding wheel (215), motor (2111) is arranged on the end of the rotating column (210). The positioning assembly (2) further includes pusher (22), the pusher (22) includes push column (221) located on the top of the elastic rod (217), the push column (221) is fixed with connecting column (222) on one side, the connecting column (222) is fixed with movable rod (223) on the end, the connecting plate (213) is fixed with support rod (224) on one side, the support rod (224) is rotatably connected with positioning shaft (225) in, the positioning shaft (225) is fixed with stress plate (226) on the bottom end, the positioning shaft (225) is rotatably connected with rotating rod (227) outside, the movable rod (223) is fixed with sliding shaft (228) on the top, the rotating rod (227) is provided with sliding slot (227-1) on it, and the sliding shaft (228) is slid in the sliding slot (227-1).

2. A borescope apparatus for inspecting a drain pipe as defined in claim 1, wherein: The positioning shaft (225) is fixed with extrusion block (225-1) on one side, the rotating rod (227) is fixed with stress shaft (225-2) on the top, the positioning shaft (225) is fixed with torsion spring (229) outside, and the other end of the torsion spring (229) is fixed with the support rod (224).

3. A borescope apparatus for inspecting a drain pipe as defined in claim 2, wherein: The positioning assembly (2) further includes support piece (23), the support piece (23) includes mounting plate (231) fixed on the side of the connecting plate (213), the mounting plate (231) is rotatably connected with rotating sleeve (232) in, the rotating sleeve (232) is fixed with gear (233) outside, the gear (233) is fixed with rotating rod (234) on one side, and the rotating rod (234) is provided with top plate (235) on the end.

4. A borescope apparatus for inspecting a drain pipe as claimed in claim 2 or 3, characterised in that: ​ 5. A borescope apparatus for inspecting a drain pipe as defined in claim 4, wherein: The positioning assembly (2) further comprises a rotating piece (24), the rotating piece (24) comprises a movable column (241) inserted into the rotating sleeve (232), a fixed shaft (242) is fixed in the rotating sleeve (232), a spiral groove (241-1) is formed in the movable column (241), the fixed shaft (242) slides in the spiral groove (241-1), a moving plate (243) is fixed at the end of the movable column (241), and a push rod (244) is arranged outside the rotating column (210).

6. A borescope apparatus for inspecting a drain pipe as defined in claim 5, wherein: A fixed frame (245) is fixed at the top of the push rod (244), a clamping block (246) is arranged in the fixed frame (245), a clamping groove (210-1) is formed in the rotating column (210), the clamping block (246) is clamped with the clamping groove (210-1), a first spring (247) is fixed at the top of the clamping block (246), and a stop block (248) is fixed on one side of the connecting rod (214).

7. A borescope apparatus for inspecting a drain pipe as defined in claim 6, wherein: The bottom of the clamping block (246) is inclined on both sides, the number of the clamping grooves (210-1) is multiple, and the clamping grooves (210-1) are evenly arranged outside the rotating column (210) in a ring shape.

8. A borescope apparatus for inspecting a drain pipe as claimed in claim 6 or 7, characterised in that: The positioning assembly (2) further comprises a locking piece (25), the locking piece (25) comprises a limiting column (251), a limiting hole (212-1) is formed in the fixed column (212), and the limiting column (251) is clamped with the limiting hole (212-1).

9. A borescope apparatus for inspecting a drain pipe as defined in claim 8, wherein: A stabilizing frame (252) is fixed at the top of the connecting plate (213), a fixed disc (253) is fixed outside the limiting column (251), a second spring (254) is fixed on one side of the fixed disc (253), and the other end of the second spring (254) is fixed with the stabilizing frame (252).

10. A borescope apparatus for inspecting a drain pipe as defined in claim 9, wherein: A force receiving rod (255) is fixed at the end of the limiting column (251), the force receiving rod (255) is inclined, and the force receiving rod (255) is in contact with the push rod (244).

Images