Pipe network trenchless repair multi-range detection device

Abstract

The utility model discloses a pipe network non-excavation repair multi-range detection device which comprises a fixing assembly used for going deep into a well. The mounting plate is located below the fixing assembly; the mounting plate is used for being arranged in a well and connecting two adjacent pipelines; the detection robot is placed on the mounting plate; the lifting assembly is arranged at the bottom of the fixing assembly and connected with the mounting plate so as to drive the mounting plate to ascend and descend; the two supporting arms are distributed on the two sides of the fixing assembly and movably connected with the fixing assembly in a telescopic mode so as to be unfolded outwards and abut against the well wall or folded inwards and break away from the well wall. After the whole device is arranged in a well, the two supporting arms are unfolded outwards and abut against the well wall, and the whole device is positioned in the well. And the lifting assembly drives the mounting plate to ascend or descend until the mounting plate corresponds to the two adjacent pipelines and communicates the two adjacent pipelines, so that the detection robot can pass through the two adjacent pipelines through the mounting plate and perform monitoring, manual transfer of the detection robot is avoided, and the monitoring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of trenchless repair of pipe networks, in particular to a multi-range detection device for trenchless repair of pipe networks. Background Art

[0002] Trenchless pipe network repair refers to the use of a trenchless method to repair the pipe network in order to reduce the impact of the entire pipe network excavation repair method on the city's finances, transportation and other aspects. Before the trenchless repair, construction personnel need to use appropriate detection equipment (such as detection robots) to explore the situation inside the pipe network.

[0003] In practical applications, such as Figure 1 As shown, for a layout in which two adjacent pipelines 200 and 300 are arranged at intervals and a deep well 100 is arranged between the two adjacent pipelines 200 and 300 to facilitate monitoring of each pipeline, since the deep well 100 isolates the two adjacent pipelines 200 and 300, when the staff throws the detection equipment into the pipeline, they need to first throw the detection equipment from the deep well 100 to one end of one of the pipelines (such as 200). After the detection of the pipeline 200 is completed, the detection equipment is taken out and then thrown from the deep well 100 to one end of the other pipeline (such as 300) to complete the monitoring of the two interval-arranged pipelines (200 and 300), resulting in low monitoring efficiency and inability to monitor the pipelines in multiple ranges.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, a multi-range detection device for trenchless repair of pipelines is provided, which aims to solve the problem in the prior art that the detection equipment needs to be manually transferred when switching between two adjacent pipelines, resulting in low monitoring efficiency.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] A multi-range detection device for trenchless repair of a pipe network, comprising:

[0008] Fixed assembly for use deep inside the well;

[0009] A mounting plate is located below the fixing assembly; the mounting plate is used to be placed in the well and connect two adjacent pipes;

[0010] A detection robot is placed on the mounting plate;

[0011] A lifting assembly is provided at the bottom of the fixing assembly and is connected to the mounting plate to drive the mounting plate to move up and down;

[0012] The two support arms are distributed on both sides of the fixing assembly and are flexibly connected to the fixing assembly so as to be expanded outwards and support the well wall or retracted inwards and detach from the well wall.

[0013] The multi-range detection device for trenchless pipe network repair further includes:

[0014] a first support rod, one end of which is connected to the support arm;

[0015] a first driving assembly connected to the fixing assembly;

[0016] a second support rod, one end of which is rotatably connected to an end of the first support rod away from the support arm, and the other end of which is rotatably connected to the first drive assembly and can be raised and lowered along the fixed assembly under the drive of the first drive assembly;

[0017] When the second support rod rises, the support arms retract inwards; when the second support rod descends, the support arms extend outwards.

[0018] The multi-range detection device for trenchless pipe network repair, wherein the first driving component includes:

[0019] a first driver, disposed in the fixing assembly;

[0020] The adapter is connected to the driving shaft of the driver and is rotatably connected to the end of the second support rod away from the first support rod to drive the second support rod to rise and fall.

[0021] The multi-range detection device for trenchless pipe network repair further includes:

[0022] a sliding rod, one end of which is connected to the support arm;

[0023] A sliding groove is provided in the fixing assembly, and the other end of the sliding rod is inserted into the sliding groove; when the support arm is expanded outward and retracted inward, the sliding rod slides along the sliding groove.

[0024] The multi-range detection device for trenchless pipe network repair, wherein the lifting assembly includes:

[0025] A screw rod is arranged vertically; the top end of the screw rod is connected to the fixing assembly;

[0026] A fixing rod is sleeved on the screw rod and is threadably engaged with the screw rod; the fixing rod is located above the mounting plate and is connected to the mounting plate;

[0027] The second driving assembly is disposed in the fixing assembly and cooperates with the screw rod to drive the screw rod to rotate and drive the fixing rod to move up and down.

[0028] The multi-range detection device for trenchless pipe network repair, wherein the second drive assembly includes:

[0029] Second drive;

[0030] a rotating rod, horizontally disposed in the fixed assembly and connected to the second driver so as to rotate under the driving of the second driver;

[0031] a first gear, sleeved on the rotating rod, and driven by the rotating rod to rotate;

[0032] The second gear is sleeved on the screw rod and meshes with the first gear to drive the screw rod to rotate under the drive of the first gear.

[0033] The multi-range detection device for trenchless pipe network repair further includes:

[0034] a positioning rod, provided on the fixing rod and located above the detection robot;

[0035] Two clamping assemblies are arranged at the bottom of the positioning rod and distributed on both sides of the detection robot; the two clamping assemblies can move toward and away from each other relative to the positioning rod to clamp and release the detection robot.

[0036] The multi-range detection device for trenchless pipe network repair further includes:

[0037] Two pressure-bearing plates are respectively arranged on both sides of the mounting plate close to two adjacent pipes;

[0038] An extension component is arranged at the bottom of the mounting plate and connected to the pressure plate to drive the pressure plate to move back and forth along the arrangement direction of the two pressure plates.

[0039] The multi-range detection device for trenchless pipe network repair further includes:

[0040] Third Drive;

[0041] An extension rod has one end connected to the third driver and the other end connected to the pressure plate, so as to drive the pressure plate to move back and forth under the drive of the third driver.

[0042] The multi-range detection device for trenchless pipe network repair, wherein the extension component further comprises:

[0043] an extension frame disposed at the bottom of the mounting plate and located on a side of the pressure plate close to the mounting plate; the extension frame is arranged to extend along the moving direction of the extension rod, the third driver is disposed in the extension frame, and the extension rod passes through the extension frame and is capable of reciprocating relative to the extension frame;

[0044] A limiting plate is provided on the extension rod and is at least partially located in the extension frame; an end of the extension frame close to the pressure plate is located on the moving path of the limiting plate.

[0045] Beneficial effect: When the multi-range detection device for trenchless repair of pipeline network is placed in the well by the staff, the two support arms are unfolded outward and support the well wall, thereby positioning the multi-range detection device for trenchless repair of pipeline network in the well; the lifting assembly drives the mounting plate to rise or fall until the mounting plate corresponds to the bottom wall of two adjacent pipes, thereby connecting the two adjacent pipes through the mounting plate, and the detection robot can pass through and monitor the two adjacent pipes through the mounting plate, and there is no need to manually transfer the detection robot between the two adjacent pipes, thereby improving the monitoring efficiency and realizing multi-range pipeline monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the distribution status of the deep well and two adjacent pipelines;

[0047] Figure 2 This is a schematic diagram of the overall structure of the multi-range detection device for trenchless repair of pipe networks described in the present utility model;

[0048] Figure 3 It is a structural diagram of the lifting assembly described in the utility model;

[0049] Figure 4 This is a schematic diagram of the assembly structure between the first support rod, the second support rod, the support arm and the fixing column in the present invention;

[0050] Figure 5 It is a schematic diagram of the assembly structure between the extension assembly, the pressure plate and the mounting plate in the present invention;

[0051] Figure 6 It is a schematic diagram of the assembly structure of the clamping assembly on the positioning rod in the utility model. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present invention more clear and distinct, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The utility model provides a multi-range detection device for trenchless repair of pipe network, such as Figure 2As shown, the multi-range detection device for trenchless repair of pipelines includes a fixing component 1, a mounting plate 2, a detection robot 3, a lifting component 4 and two support arms 5; the fixing component 1 is used to go deep into the well, and the mounting plate 2 is located below the fixing component 1, and the mounting plate 2 is used to be placed in the well and connect two adjacent pipes; the detection robot 3 is placed on the mounting plate 2; the lifting component 4 is arranged at the bottom of the fixing component 1 and is connected to the mounting plate 2 to drive the mounting plate 2 to rise and fall; the two support arms 5 are distributed on both sides of the fixing component 1 and are telescopically connected to the fixing component 1 to expand outward and support the well wall or retract inward and detach from the well wall.

[0054] Specifically, the overall size of the multi-range detection device for trenchless repair of pipeline network is matched with the inner diameter clearance of the well to ensure that the entire multi-range detection device for trenchless repair of pipeline network can be inserted into the well and can also be taken out of the well. The mounting plate 2 is used to carry the detection robot 3, the fixing component 1 and the lifting component 4; when the multi-range detection device for trenchless repair of pipeline network is placed in the well by the staff, the two support arms 5 are unfolded outward and support the well wall, thereby positioning the multi-range detection device for trenchless repair of pipeline network in the well; the lifting component 4 drives the mounting plate 2 to rise or fall until the mounting plate 2 corresponds to the bottom wall of two adjacent pipelines, thereby connecting the two adjacent pipelines through the mounting plate 2, and the detection robot 3 can pass through the mounting plate 2 and monitor in the two adjacent pipelines, without the need for manual transfer of the detection robot 3 between the two adjacent pipelines, thereby improving the monitoring efficiency and realizing multi-range pipeline monitoring.

[0055] It is understandable that the size of the mounting plate 2 can be designed according to the actual distance between two adjacent pipes, so that the detection robot 3 can move from the mounting plate 2 to the adjacent pipe, or from the adjacent pipe to the mounting plate 2. The support arm 5 is arc-shaped to better fit the well wall.

[0056] like Figure 4 As shown, the multi-range detection device for trenchless repair of pipelines also includes a first support rod 6, a second support rod 7 and a first drive assembly; one end of the first support rod 6 is connected to the support arm 5; the first drive assembly is connected to the fixed assembly 1; one end of the second support rod 7 is rotatably connected to the end of the first support rod 6 away from the support arm 5, and the other end of the second support rod 7 is rotatably connected to the first drive assembly, and can be raised and lowered along the fixed assembly 1 under the drive of the first drive assembly; when the second support rod 7 rises, the support arm 5 retracts inward; when the second support rod 7 descends, the support arm 5 expands outward.

[0057] Specifically, the two support arms 5 are located on opposite sides of the fixed assembly 1; when the first drive assembly drives the second support rod 7 to descend, the end of the second support rod 7 connected to the first drive assembly rotates relative to the first drive assembly and the fixed assembly 1 and moves downward; as the second support rod 7 descends, the first support rod 6 moves outward and rotates relative to the second support rod 7, causing the support arms 5 to move outward, thereby achieving the deployment of the two support arms 5. When the first drive assembly drives the second support rod 7 to ascend, the first support rod 6 rotates relative to the second support rod 7 and resets, thereby driving the support arms 5 to retract inward, thereby achieving the folding of the two support arms 5.

[0058] Therefore, the present application controls the descent or rise height of the second support rod 7 through the first drive component, thereby controlling the expansion or contraction length of the two support arms 5, thereby adapting to the inner diameter of the well, to ensure that the two support arms 5 can support the well wall through the drive adjustment of the first drive component, and the pipeline network non-excavation repair multi-range detection device can be positioned as a whole in the well; and due to the adjustment of the support arms 5, the pipeline network non-excavation repair multi-range detection device can be adapted to wells of different inner diameters.

[0059] The first drive assembly includes a first driver and an adapter 8 (such as Figure 4 (as shown); the first driver is disposed within the fixed assembly 1; the adapter 8 is connected to the driver's drive shaft and is rotatably connected to the end of the second support rod 7 away from the first support rod 6, thereby driving the second support rod 7 to rise and fall. When the first driver is activated, the adapter 8 rises and falls, and the end of the second support rod 7 connected to the adapter 8 rises and falls synchronously. At the same time, the second support rod 7 rotates relative to the adapter 8, thereby driving the first support rod 6 to push outward and retract inward, thereby achieving the expansion and contraction of the two support arms 5.

[0060] In one embodiment of this application, Figure 4 As shown, the pipeline trenchless repair multi-range detection device also includes a sliding rod 9; one end of the sliding rod 9 is connected to the support arm 5; a sliding groove is provided in the fixing assembly 1, and the other end of the sliding rod 9 is inserted into the sliding groove; when the support arm 5 is expanded outward and retracted inward, the sliding rod 9 slides along the sliding groove.

[0061] The sliding rod 9 is used to limit the outward extension and inward retraction of the support arm 5, ensuring that the support arm 5 can move in a straight line under the driving action of the first support rod 6, so that the two support arms 5 can move toward and away from each other along a straight line, thereby supporting the well wall or detaching from the well wall.

[0062] When the adapter 8 moves upward to the upper limit, Figure 4 As shown, the second support rod 7 is arranged vertically, the first support rod 6 is arranged horizontally, and the first support rod 6 is parallel to the sliding rod 9.

[0063] like Figure 2 、 Figure 3 and Figure 4 As shown, the fixing assembly 1 includes a fixing post 101 and a support frame 102. The fixing post 101 is arranged horizontally and perpendicular to the extension direction of the mounting plate 2. The support frame 102 is arranged above the fixing post 101 and perpendicular to the fixing post 101. The first driver is disposed within the support frame 102. When the adapter 8 moves upward to the upper limit, the support frame 102 is parallel to the second support rod 7.

[0064] like Figure 3 As shown, the lifting assembly 4 includes a screw rod 41, a fixing rod 42 and a second driving assembly 43; the screw rod 41 is arranged vertically; the top end of the screw rod 41 is connected to the fixing assembly 1; the fixing rod 42 is sleeved on the screw rod 41 and threadedly engaged with the screw rod 41; the fixing rod 42 is located above the mounting plate 2 and is connected to the mounting plate 2; the second driving assembly 43 is arranged in the fixing assembly 1 and cooperates with the screw rod 41 to drive the fixing rod 42 to rise and fall by driving the screw rod 41 to rotate.

[0065] Specifically, the second drive assembly 43 is disposed within the fixing column 101 and connected to the screw rod 41, thereby driving the screw rod 41 to rotate. When the screw rod 41 rotates, based on the screw nut principle, the fixing rod 42 generates a lifting motion, thereby driving the mounting plate 2 to rise and fall through the fixing rod 42, thereby achieving the lifting and lowering of the exploration robot 3 within the well.

[0066] like Figure 3 As shown, the second drive assembly 43 includes a second driver 431, a rotating rod 432, a first gear 433 and a second gear 434; the second driver 431 is arranged in the fixed column 101; the rotating rod 432 is horizontally arranged in the fixed assembly 1 and is connected to the second driver 431 to rotate under the drive of the second driver 431; the first gear 433 is sleeved on the rotating rod 432 to rotate under the drive of the rotating rod 432; the second gear 434 is sleeved on the screw rod 41 and engages with the first gear 433 to drive the screw rod 41 to rotate under the drive of the first gear 433.

[0067] The first gear 433 and the second gear 434 are both bevel gears; when the second driver 431 is started, the rotating rod 432 rotates, and the second gear 434 is driven to rotate through the first gear 433, thereby realizing the rotation of the screw rod 41, thereby driving the fixing rod 42 to rise and fall.

[0068] like Figure 2 and Figure 6 As shown, the multi-range detection device for trenchless repair of pipelines also includes a positioning rod 10 and two clamping assemblies 11; the positioning rod 10 is arranged on the fixed rod 42 and can be raised and lowered synchronously with the fixed rod 42; the positioning rod 10 is located above the detection robot 3; the two clamping assemblies 11 are arranged at the bottom of the positioning rod 10 and are distributed on both sides of the detection robot 3; the two clamping assemblies 11 can move toward and away from each other relative to the positioning rod 10 to clamp and release the detection robot 3.

[0069] During the process of throwing the multi-range detection device for trenchless repair of the pipeline network into the well, the two clamping assemblies 11 cooperate to clamp the detection robot 3 to prevent the detection robot 3 from moving; when the mounting plate 2 connects two adjacent pipelines, the two clamping assemblies 11 loosen the detection robot 3, and the detection robot 3 can enter any pipeline through the mounting plate 2 for monitoring.

[0070] like Figure 6 As shown, the positioning rod 10 is provided with a first threaded rod 12 and a second threaded rod 13. The first threaded rod 12 and the second threaded rod 13 are coaxially arranged along a straight line and connected to each other. The first threaded rod 12 and the second threaded rod 13 are each sleeved with a clamping assembly 11, and the clamping assembly 11 is threadedly engaged with the corresponding threaded rod. The positioning rod 10 is also provided with a fourth driver 14, which is connected to the first threaded rod 12 or the second threaded rod 13 to drive the synchronous rotation of the first threaded rod 12 and the second threaded rod 13.

[0071] The thread rotation directions of the first threaded rod 12 and the second threaded rod 13 are opposite. When the fourth driver 14 is started, based on the screw nut principle, the clamping assembly 11 on the first threaded rod 12 and the clamping assembly 11 on the second threaded rod 13 move toward or away from each other, thereby clamping or loosening the detection robot 3.

[0072] like Figure 5As shown, the trenchless pipe network repair multi-range detection device also includes two pressure plates 15 and an extension assembly 16. A pressure plate 15 is positioned on each side of the mounting plate 2, adjacent to two adjacent pipes. The two pressure plates 15 are arranged parallel to the direction of the adjacent pipes. The extension assembly 16 is connected to the pressure plates 15 and disposed at the bottom of the mounting plate 2. The extension assembly 16 is used to drive the pressure plates 15 to reciprocate along the direction of their arrangement.

[0073] Specifically, when the multi-range detection device for trenchless repair of the pipeline network is thrown into the well, and the mounting plate 2 is flush with the bottom walls of the two adjacent pipes through the drive of the lifting component 4, if the inner diameter of the well is too large, resulting in the mounting plate 2 being unable to smoothly connect the two adjacent pipes, the extension component 16 is started, and the extension component 16 drives the pressure plate 15 to extend outward and support the well wall, so that the pressure plate 15 plays a transition role between the mounting plate 2 and the pipe, ensuring that the detection robot 3 can smoothly pass between the pipe and the mounting plate 2, thereby ensuring that the detection robot 3 can run from one pipe to the adjacent pipe on its own, realizing multi-range pipeline monitoring.

[0074] like Figure 5 As shown, the extension assembly 16 includes a third driver 161 and an extension rod 162; the third driver 161 is disposed at the bottom of the mounting plate 2; one end of the extension rod 162 is connected to the third driver 161, and the other end of the extension rod 162 is connected to the pressure plate 15, so as to drive the pressure plate 15 to move back and forth under the drive of the third driver 161. The pressure plate 15 moves horizontally, and the movement direction is parallel to the extension direction of the mounting plate 2 (i.e., the arrangement direction of two adjacent pipes).

[0075] In one embodiment of this application, Figure 5 As shown, the multi-range detection device for trenchless repair of pipelines also includes an extension frame 17 and a limit plate 18; the extension frame 17 is arranged at the bottom of the mounting plate 2, and is located on the side of the pressure plate 15 close to the mounting plate 2; the extension frame 17 is extended along the moving direction of the extension rod 162, and the third driver 161 is arranged in the extension frame 17; the extension rod 162 passes through the extension frame 17 and can move back and forth relative to the extension frame 17; the limit plate 18 is arranged on the extension rod 162, and is at least partially located in the extension frame 17; the end of the extension frame 17 close to the pressure plate 15 is located on the moving path of the limit plate 18.

[0076] The limit plate 18 is fixedly connected to the extension rod 162 and moves synchronously with the extension rod 162. The extension frame 17 is used to limit the movement of the extension rod 162 through the limit plate 18. When the extension rod 162 moves outward relative to the mounting plate 2, the limit plate 18 moves outward until it contacts the end of the extension frame 17 near the pressure plate 15. The extension frame 17 limits the limit plate 18, preventing the extension rod 162 from moving further, and the pressure plate 15 moves outward to its maximum distance.

[0077] Illuminating lamps 19 are also provided at both ends of the mounting plate 2 in the extension direction to illuminate the well.

[0078] In summary, the present application provides a multi-range detection device for trenchless repair of pipelines, which includes a fixing component for penetrating deep into the well; a mounting plate located below the fixing component; the mounting plate is used to be placed in the well and connect two adjacent pipes; a detection robot is placed on the mounting plate; a lifting component is arranged at the bottom of the fixing component and connected to the mounting plate to drive the mounting plate to rise and fall; two support arms are distributed on both sides of the fixing component and are telescopically connected to the fixing component to expand outward and support the well wall or retract inward and detach from the well wall. When the multi-range detection device for trenchless repair of pipeline network is placed in the well by the staff, the two support arms are unfolded outward and support the well wall, thereby positioning the multi-range detection device for trenchless repair of pipeline network in the well; the lifting assembly drives the mounting plate to rise or fall until the mounting plate corresponds to the bottom wall of two adjacent pipelines, thereby connecting the two adjacent pipelines through the mounting plate, and the detection robot can pass through and monitor the two adjacent pipelines through the mounting plate, and there is no need to manually transfer the detection robot between the two adjacent pipelines, thereby improving the monitoring efficiency and realizing multi-range pipeline monitoring.

[0079] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-range detection device for trenchless repair of pipe networks, characterized in that: It includes: Fixed assembly for use deep inside the well; a mounting plate, located below the fixing assembly; The mounting plate is used to be placed in the well and connect two adjacent pipes; A detection robot is placed on the mounting plate; A lifting assembly is provided at the bottom of the fixing assembly and is connected to the mounting plate to drive the mounting plate to move up and down; The two support arms are distributed on both sides of the fixing assembly and are flexibly connected to the fixing assembly so as to be expanded outwards and support the well wall or retracted inwards and detach from the well wall.

2. The multi-range detection device for trenchless pipe network repair according to claim 1 is characterized in that: It also includes: a first support rod, one end of which is connected to the support arm; a first driving assembly connected to the fixing assembly; a second support rod, one end of which is rotatably connected to an end of the first support rod away from the support arm, and the other end of which is rotatably connected to the first drive assembly and can be raised and lowered along the fixed assembly under the drive of the first drive assembly; When the second support rod rises, the support arms retract inwards; when the second support rod descends, the support arms extend outwards.

3. The multi-range detection device for trenchless pipe network repair according to claim 2 is characterized in that: The first drive assembly comprises: a first driver, disposed in the fixing assembly; The adapter is connected to the driving shaft of the driver and is rotatably connected to the end of the second support rod away from the first support rod to drive the second support rod to rise and fall.

4. The multi-range detection device for trenchless pipe network repair according to claim 1 is characterized in that: It also includes: a sliding rod, one end of which is connected to the support arm; A sliding groove is provided in the fixing assembly, and the other end of the sliding rod is inserted into the sliding groove; when the support arm is expanded outward and retracted inward, the sliding rod slides along the sliding groove.

5. The multi-range detection device for trenchless pipe network repair according to claim 1 is characterized in that: The lifting assembly comprises: A screw rod is arranged vertically; the top end of the screw rod is connected to the fixing assembly; A fixing rod is sleeved on the screw rod and is threadably engaged with the screw rod; the fixing rod is located above the mounting plate and is connected to the mounting plate; The second driving assembly is disposed in the fixing assembly and cooperates with the screw rod to drive the screw rod to rotate and drive the fixing rod to move up and down.

6. The multi-range detection device for trenchless pipe network repair according to claim 5 is characterized in that: The second drive assembly includes: Second drive; a rotating rod, horizontally disposed in the fixed assembly and connected to the second driver so as to rotate under the driving of the second driver; a first gear, sleeved on the rotating rod, and driven by the rotating rod to rotate; The second gear is sleeved on the screw rod and meshes with the first gear to drive the screw rod to rotate under the drive of the first gear.

7. The multi-range detection device for trenchless pipe network repair according to claim 5, characterized in that: It also includes: a positioning rod, provided on the fixing rod and located above the detection robot; Two clamping assemblies are arranged at the bottom of the positioning rod and distributed on both sides of the detection robot; the two clamping assemblies can move toward and away from each other relative to the positioning rod to clamp and release the detection robot.

8. The multi-range detection device for trenchless pipe network repair according to claim 1 is characterized in that: It also includes: Two pressure plates are respectively arranged on both sides of the mounting plate close to two adjacent pipes; An extension component is arranged at the bottom of the mounting plate and connected to the pressure plate to drive the pressure plate to move back and forth along the arrangement direction of the two pressure plates.

9. The multi-range detection device for trenchless pipe network repair according to claim 8, characterized in that: It also includes: Third Drive; An extension rod has one end connected to the third driver and the other end connected to the pressure plate, so as to drive the pressure plate to move back and forth under the drive of the third driver.

10. The multi-range detection device for trenchless pipe network repair according to claim 9, characterized in that: The extension assembly further comprises: an extension frame disposed at the bottom of the mounting plate and located on a side of the pressure plate close to the mounting plate; the extension frame is arranged to extend along the moving direction of the extension rod, the third driver is disposed in the extension frame, and the extension rod passes through the extension frame and is capable of reciprocating relative to the extension frame; A limiting plate is provided on the extension rod and is at least partially located in the extension frame; an end of the extension frame close to the pressure plate is located on the moving path of the limiting plate.

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