Moving device for routing inspection and maintenance of diversion tunnel

The design of the mobile inspection and maintenance device for water diversion tunnels has solved the problem of insufficient stability during movement within the tunnels, enabling comprehensive inspection and convenient movement, and meeting the stability, communication, and lighting requirements within the tunnels.

CN223880720UActive Publication Date: 2026-02-06CHINA HUADIAN ELESAI DOWNSTREAM HYDROPOWER PROJECT (CAMBODIA) CO LTD
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Patent Information

Application Number
CN202520480574.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-06
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The existing inspection and maintenance equipment for water diversion tunnels lacks stability during movement and maintenance, making it difficult to achieve comprehensive inspection inside circular tubular water diversion tunnels.

Method used

A mobile device for inspection and maintenance of water diversion tunnels was designed, comprising a mobile frame, a directional limiting mechanism, an auxiliary platform, a synchronous drive mechanism, and a stabilizing mechanism. The combination of casters, limiting components, an auxiliary platform, and support blocks ensures the stability and ease of movement of the device within the water diversion tunnel.

Benefits of technology

It enables comprehensive inspection inside the water diversion tunnel, improves the stability and mobility of the device, reduces the hassle of manually transporting materials, meets the 360-degree defect elimination requirements of the tunnel, and ensures lighting and communication needs in the dark tunnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a diversion tunnel inspection and maintenance moving device which comprises a moving frame body, a plurality of supporting platforms are fixedly installed on the moving frame body at intervals in the longitudinal direction, and universal wheels are installed on the periphery of the bottom of the moving frame body. The direction limiting mechanism is used for limiting the moving direction of the universal wheels and assisting in supporting the moving frame body and comprises a limiting piece moving up and down, and when the limiting piece moves downwards to the middle position, the universal wheels are controlled to move unidirectionally; after the limiting piece moves downwards in place, the arc-shaped surface of the limiting piece abuts against and is attached to the inner side wall of the diversion tunnel; the auxiliary platforms are symmetrically arranged on the two sides of the supporting platform; and the synchronous driving mechanism comprises connecting rods rotationally installed at the two tail ends of the connecting rod, the two connecting rods are arranged in a staggered and back-to-back mode and are rotationally connected with the two auxiliary platforms on the supporting platform correspondingly, and a power hydraulic cylinder connected with any auxiliary platform is fixedly installed on the supporting platform. According to the utility model, the stability during movement and maintenance can be ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to overhauling mobile device technical field, specifically point to a kind of diversion tunnel inspection and repair mobile device. BACKGROUND

[0002] Diversion tunnel is located between upper reservoir inlet and outlet and powerhouse for conveying water tunnel. In order to ensure the long-term normal use of tunnel, diversion tunnel needs to be regularly inspected, and corresponding mobile device is needed for placing tools and defect elimination materials and climbing operation during inspection and repair, and moving in diversion tunnel to detect it in all directions. But diversion tunnel is large size circular pipe, inner side wall is circular arc, so the stability of the mobile device during moving and repair is extremely important.

[0003] Therefore, the research purpose of the utility model is to design a diversion tunnel inspection and repair mobile device that can ensure the stability during moving and repair. UTILITY MODEL CONTENT

[0004] In view of the technical problems existing in the prior art, the utility model provides a diversion tunnel inspection and repair mobile device, which can effectively solve the technical problems existing in the prior art.

[0005] The technical scheme of the utility model is:

[0006] A diversion tunnel inspection and repair mobile device comprises:

[0007] A mobile frame body is provided with a plurality of support platforms fixed and installed longitudinally at intervals, and a plurality of universal wheels are installed on the bottom periphery of the mobile frame body through corresponding support rods;

[0008] A direction limiting mechanism is used to limit the moving direction of the universal wheels and assist in supporting the mobile frame body. A corresponding limiting piece is installed on the outside of the universal wheels and moves up and down through a telescopic cylinder driving mode. The longitudinal section of the limiting piece is in U shape, and the bottom is provided with an arc surface matched with the side wall of the diversion tunnel. When the limiting piece is lowered to the middle position, it is used to limit the one-way movement of the universal wheels. After the limiting piece is lowered to position, the arc surface is in abutment with the inner side wall of the diversion tunnel.

[0009] An auxiliary platform is symmetrically provided on both sides of the support platform, which can move left and right and can be retracted and stored in the bottom of the support platform. The auxiliary platform and the support platform are connected to each other through a corresponding sliding groove and sliding block assembly.

[0010] Synchronous driving mechanism, containing rotating installation in the bottom surface of the support platform middle connecting rod, both end of the connecting rod are rotatably connected with the corresponding link rod, two link rods are opposite and back to set up and respectively with two auxiliary platform on the support platform rotatable connection, the support platform is fixedly installed with power hydraulic cylinder synchronous driving two auxiliary platform, the piston rod end of the power hydraulic cylinder is connected with any one auxiliary platform.

[0011] The edge of the auxiliary platform is fixedly installed with the corresponding guardrail, and the guardrail spacing between the two auxiliary platforms is set to form a corresponding entrance, and a climbing ladder connecting the upper and lower support platforms is arranged at the position of the entrance.

[0012] The power hydraulic cylinder installed on the support platform is staggered with the climbing ladder.

[0013] The width of the auxiliary platform is greater than the width of the support platform connected thereto, and greater than the width of the adjacent auxiliary platform at the upper end.

[0014] Both ends of the auxiliary platform not connected to the support platform are connected with corresponding vertical rods downward, the vertical rod on the upper auxiliary platform extends downward and abuts on the lower auxiliary platform, the bottom of the vertical rod is installed with a corresponding guide wheel, and the lower auxiliary platform is provided with a guide groove matched with the guide wheel, the setting direction of the guide wheel on the vertical rod at the bottom is the same as the moving direction of the maintenance mobile device in the diversion tunnel, and the guide wheel at the bottom is higher than the height of the universal wheel.

[0015] The maintenance mobile device is also provided with a lithium battery and a brake for driving the movement thereof, and is installed with a corresponding lighting device and a high-power intercom device.

[0016] The middle part of the moving frame body is provided with a corresponding stabilizing mechanism, the stabilizing mechanism contains a support block fixedly arranged below the bottom support platform and movable upward and downward, and the bottom surface of the support block is provided with an arc surface matched with the inner side wall of the diversion tunnel; when the maintenance mobile device moves, the support block moves upward and is higher than the height of the universal wheel; after the maintenance mobile device is moved into position, the support block moves downward and is supported and abuts to the bottom surface of the inner side wall of the diversion tunnel.

[0017] The utility model has the advantages of:

[0018] 1) The utility model discloses on the basis of mobile frame body adds the auxiliary platform of left and right movement setting, to broaden the transverse space of the maintenance mobile device, and then personnel is convenient to the water diversion tunnel is patrolled. But in this way, the auxiliary platform of left and right sides drives to extend and will lead to the gravity center of mobile frame body to incline and dump, therefore the utility model adds the link of rotating installation in the support platform below is respectively rotated and connects the link of misplacement opposite setting, and the link is respectively rotated and connected with left and right two auxiliary platforms, and the movement of auxiliary platform is controlled synchronously through the telescopic synchronous control of power hydraulic cylinder piston rod, and then the stability of mobile frame body is ensured.

[0019] 2) In order to ensure the convenience of movement, by setting the electric universal wheel below the mobile frame body, and then on the flat ground, the mobile frame body is moved in any direction, and the corresponding limit mechanism is set. When moving in the water diversion tunnel, the universal wheel is controlled by the telescopic cylinder drive and is lowered to the U-shaped limiting piece, so that the universal wheel moves unidirectionally, effectively avoids the left and right deflection when moving in the water diversion tunnel, and further ensures the stability of movement. When moving to the position, the limiting piece can be continuously lowered and abuts against the inner side wall of the water diversion tunnel, the bottom arc surface of the limiting piece is matched with the inner side wall of the water diversion tunnel and abuts against and supports, and the stability during maintenance is further improved.

[0020] 3) The width of the auxiliary platform is gradually increased by layering upwards, and the upper and lower auxiliary platforms are supported and connected by the corresponding vertical rod and guide wheel below the auxiliary platform, and the stability of the support and movement of the auxiliary platform is further ensured. By setting the corresponding stable mechanism in the middle of the mobile frame body, the support block is fixedly installed and can move up and down, the support block moves up to form a gap for movement when moving, and the support block moves down to abut against the middle part of the water diversion tunnel after stopping, and the three-dimensional support is formed by the multiple support points of the universal wheel of the mobile frame body, the guide wheel on the auxiliary platform of the bottom layer, and the stability of the support is further improved.

[0021] 4) The utility model also sets up the corresponding lithium battery and brake, can improve the convenience of movement and the stability during maintenance through power drive, and sets up the corresponding lighting device and high-power intercom device, meets the lighting demand in the dark tunnel, can keep communication within 3km outside the water diversion system tunnel, and ensures the safety. The utility model optimizes three layers of support platforms, and the height of each stage is 2m, when the height is 6m, 1.6m can be detected on the top of the water diversion tunnel, ensures that the water diversion tunnel with a diameter of 7.6m can be detected in all directions, and meets the defect elimination demand of 360 degrees of the tunnel, saves the time of on-site installation and removal of the steel pipe frame, and the tools and defect elimination materials can be placed on the device, avoiding the trouble of frequent transportation of materials in the water diversion tunnel. DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the utility model.

[0023] Figure 2 Structure diagram of a synchronous driving mechanism.

[0024] Figure 3 Side view schematic diagram when the utility model is used.

[0025] Figure 4 Structure diagram of example two.

[0026] Figure 5 Schematic diagram of the use state of example two.

[0027] In the drawings: mobile frame body 1, support platform 2, support rod 3, universal wheel 4, telescopic cylinder 5, limiting piece 6, auxiliary platform 7, connecting rod 8, connecting rod 9, power hydraulic cylinder 10, protective fence 11, climbing ladder 12, vertical rod 13, guide wheel 14, support block 15. DETAILED DESCRIPTION

[0028] In order to facilitate those skilled in the art to understand, the structure of the utility model will be further described in detail in combination with the drawings:

[0029] Example one

[0030] Reference Figures 1-3 A diversion tunnel inspection and repair mobile device, comprising:

[0031] Mobile frame body 1, a plurality of support platforms 2 are fixedly installed on the mobile frame body 1 in longitudinal intervals, and corresponding universal wheels 4 are installed on the bottom periphery of the mobile frame body 1 through corresponding support rods 3;

[0032] A limiting mechanism is used to limit the moving direction of the universal wheels 4 and assist in supporting the mobile frame body 1; corresponding limiting pieces 6 are installed on the outside of the universal wheels 4 through the driving mode of a telescopic cylinder 5 and move up and down, the longitudinal section of the limiting piece 6 is in the shape of a U, and the bottom is provided with an arc surface that is matched with the side wall of the diversion tunnel; when the limiting piece 6 is lowered to the middle position, it is used to limit the one-way movement of the universal wheels 4; after the limiting piece 6 is lowered to the position, the arc surface is in abutment with the inner side wall of the diversion tunnel;

[0033] Auxiliary platform 7, the two sides of the support platform 2 are symmetrically provided with auxiliary platforms 7 that can move left and right and can be retracted and stored in the bottom of the support platform 2, and the auxiliary platform 7 and the support platform 2 are connected with each other through a corresponding sliding groove and sliding block assembly;

[0034] The synchronous driving mechanism comprises a connecting rod 8 rotatably installed in the middle of the bottom surface of the support platform 2, two end portions of the connecting rod 8 are rotatably connected with corresponding connecting rods 9, the two connecting rods 9 are oppositely and opposingly arranged and rotatably connected with two auxiliary platforms 7 on the support platform 2, and a power hydraulic cylinder 10 for synchronously driving the two auxiliary platforms 7 is fixedly installed on the support platform 2 and connected with the end portion of the piston rod of the power hydraulic cylinder 10.

[0035] The auxiliary platform 7 is arranged on the mobile frame body 1 and can be moved left and right, so as to expand the horizontal space of the maintenance mobile device and facilitate personnel to conveniently perform inspection on the diversion tunnel.

[0036] In order to ensure the convenience of movement, the universal wheel 4 is arranged below the mobile frame body 1, so as to facilitate movement of the mobile frame body 1 in any direction on the ground, and a corresponding direction limiting mechanism is arranged. When moving in the diversion tunnel, the universal wheel 4 is controlled by moving the U-shaped limiting piece 6 downwardly driven by the telescopic cylinder 5, so that the universal wheel 4 moves in one direction, effectively avoids left and right deflection when moving in the diversion tunnel, and further ensures the stability of movement. When the mobile frame body 1 is moved to a position, the limiting piece 6 can be continuously moved downwardly and abut against the inner side wall of the diversion tunnel, the bottom arc surface of the limiting piece 6 is matched with the inner side wall of the diversion tunnel and abuts against and supports, and the stability during maintenance is further improved.

[0037] The edge of the auxiliary platform 7 is fixedly installed with the corresponding guardrail 11, the guardrails 11 between the two auxiliary platforms 7 are arranged at intervals to form a corresponding entrance and exit, and the climbing ladder 12 connected with the upper and lower support platforms 2 is arranged at the position of the entrance and exit.

[0038] The power hydraulic cylinder 10 and the climbing ladder 12 are arranged in front of and behind each other on the support platform 2.

[0039] The width of the auxiliary platform 7 is greater than the width of the support platform 2 connected with the auxiliary platform 7 and greater than the width of the adjacent auxiliary platform 7 at the upper end.

[0040] The auxiliary platform 7 is connected downward with a corresponding vertical rod 13 at both ends of the support platform 2, the vertical rod 13 on the upper auxiliary platform 7 extends downward and abuts on the lower auxiliary platform 7, the bottom of the vertical rod 13 is installed with a corresponding guide wheel 14, and the lower auxiliary platform 7 is provided with a guide groove matched with the guide wheel 14, the setting direction of the guide wheel 14 on the vertical rod 13 at the bottom is the same as the moving direction of the maintenance moving device in the diversion tunnel, and the guide wheel 14 at the bottom is higher than the height of the universal wheel 4.

[0041] The maintenance moving device is also provided with a lithium battery and a brake for driving the movement, and is installed with a corresponding lighting device and a high-power intercom device.

[0042] The utility model discloses still set up corresponding lithium battery and brake, can improve the convenience of movement and the stability when overhauling through power drive, still set up the lighting device and high-power intercom device of market purchase, satisfy the illumination demand in dark tunnel, can keep communication within 3km outside diversion system hole, ensure security. The utility model discloses preferably three layer support platform 2, and each height is 2m, when height is at 6m, still have 1.6m to detect diversion tunnel top, guarantee that the diversion tunnel of diameter 7.6m can carry out all -round detection, and satisfy the defect elimination demand of tunnel 360 degrees, save the time of on -the -spot installation and dismantling steel pipe frame, can place the tool and the defect elimination material on the device, avoid the annoyance of manpower in diversion tunnel frequently transport material materials.

[0043] Embodiment two

[0044] Reference Figures 4-5 The difference between the embodiment and the embodiment one is that the middle part of the moving frame body 1 is provided with a corresponding stable mechanism, the stable mechanism includes a support block 15 which is fixedly arranged below the bottom support platform 2 and can move up and down, and the bottom surface of the support block 15 is provided with an arc surface matched with the inner side wall of the diversion tunnel; when the maintenance moving device moves, the support block 15 moves up to be higher than the height of the universal wheel 4; after the maintenance moving device is moved to the position, the support block 15 moves down to abut on the bottom surface of the inner side wall of the diversion tunnel.

[0045] The width of the auxiliary platform 7 gradually increases layer by layer upwards, and the auxiliary platform 7 is supported and connected with the upper and lower auxiliary platforms 7 through the corresponding vertical rod 13 and the guide wheel 14, which further ensures the stability of the support and movement of the auxiliary platform 7. By arranging the corresponding stable mechanism in the middle part of the moving frame body 1, the support block is fixedly installed and can move up and down, the support block moves up to form a gap for movement when moving, and the support block moves down to abut on the middle part of the diversion tunnel after stopping, which cooperates with the multiple support points of the universal wheel 4 of the moving frame body 1 and the guide wheel 14 on the auxiliary platform 7 at the bottom layer to form a three-dimensional support, thereby further improving the stability of the support.

[0046] It should be noted that the implementation principle and the technical effects of the embodiment are the same as those of the first embodiment. For brief description, the embodiment is not mentioned, and the corresponding content in the first embodiment can be referred to.

[0047] The above only describes the preferred embodiments of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, some improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A mobile device for inspection and maintenance of a diversion tunnel, characterized in that, Include: Mobile frame body (1), several support platforms (2) are fixedly installed on the mobile frame body (1) and are longitudinally spaced, and the bottom periphery is provided with corresponding universal wheels (4) through corresponding support rods (3); The direction limiting mechanism is used for limiting the moving direction of the universal wheel (4) and assisting in supporting the mobile frame body (1); the corresponding limiting piece (6) is installed on the outside of the universal wheel (4) and moves up and down through the driving mode of the telescopic cylinder (5), the longitudinal section of the limiting piece (6) is U-shaped, and the bottom is provided with an arc surface matched with the side wall of the diversion tunnel; when the limiting piece (6) is lowered to the middle position, it is used for limiting the one-way movement of the universal wheel (4); after the limiting piece (6) is lowered to the position, the arc surface abuts and fits with the inner side wall of the diversion tunnel; The auxiliary platform (7) is symmetrically provided on both sides of the support platform (2), and the auxiliary platform (7) can move left and right and can be retracted and accommodated in the bottom of the support platform (2), and the auxiliary platform (7) and the support platform (2) are connected through corresponding sliding groove and sliding block assemblies; The synchronous driving mechanism includes a connecting rod (8) rotatably installed in the middle of the bottom surface of the support platform (2), both ends of the connecting rod (8) are rotatably connected with corresponding link rods (9), the two link rods (9) are oppositely arranged and rotatably connected with two auxiliary platforms (7) on the support platform (2), and the support platform (2) is fixedly installed with a power hydraulic cylinder (10) for synchronously driving the two auxiliary platforms (7), and the piston rod end of the power hydraulic cylinder (10) is connected with any one of the auxiliary platforms (7).

2. The mobile device for inspection and maintenance of a diversion tunnel according to claim 1, characterized in that, The edge of the auxiliary platform (7) is fixedly provided with a corresponding guardrail (11), and the guardrails (11) between the two auxiliary platforms (7) are spaced apart to form corresponding entrances, and a climbing ladder (12) connecting the upper and lower support platforms (2) is arranged at the position of the entrance.

3. The mobile device for inspection and maintenance of a diversion tunnel according to claim 2, characterized in that, The power hydraulic cylinder (10) installed on the support platform (2) and the climbing ladder (12) are staggered in front and back.

4. The mobile device for inspection and maintenance of a diversion tunnel according to claim 1, characterized in that, The width of the auxiliary platform (7) is greater than the width of the support platform (2) connected thereto, and greater than the width of the adjacent auxiliary platform (7) on the upper end.

5. The mobile device for inspection and maintenance of a diversion tunnel according to claim 4, characterized in that, The two ends of the auxiliary platform (7) not connected with the support platform (2) are connected with corresponding vertical rods (13) downward, the vertical rod (13) on the upper auxiliary platform (7) extends downward and abuts on the lower auxiliary platform (7), the bottom of the vertical rod (13) is provided with a corresponding guide wheel (14), and the lower auxiliary platform (7) is provided with a guide groove matched with the guide wheel (14), the setting direction of the guide wheel (14) on the vertical rod (13) at the bottom is the same as the moving direction of the maintenance mobile device in the diversion tunnel, and the guide wheel (14) at the bottom is higher than the height of the universal wheel (4).

6. The mobile device for inspection and maintenance of a diversion tunnel according to claim 1, characterized in that, The maintenance mobile device is also provided with a lithium battery and a brake for driving the movement thereof, and is provided with a corresponding lighting device and a high-power intercom device.

7. The mobile device for inspection and maintenance of a diversion tunnel according to claim 1, characterized in that, The middle part of the mobile frame body (1) is provided with a corresponding stabilizing mechanism, which comprises a support block (15) fixedly arranged below the bottom support platform (2) and movable up and down, and the bottom surface of the support block (15) is provided as an arc surface matched with the inner side wall of the diversion tunnel; when the maintenance mobile device moves, the support block (15) moves up to a height higher than that of the universal wheel (4); after the maintenance mobile device is moved to the position, the support block (15) moves down to the arc surface face support abuts to the bottom surface of the inner side wall of the diversion tunnel.