Automatic hole cleaning equipment for prestressed hole channel of beam body

By designing fixed and adjustable components, the shaking and adjustment problems of existing equipment when cleaning prestressed ducts in beams have been solved, achieving stable fixing and height adaptation of the cleaning tool, improving cleaning efficiency and equipment versatility.

CN224157490UActive Publication Date: 2026-04-24LIAONING ZHONGKE ROAD ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING ZHONGKE ROAD ENG CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

When cleaning prestressed ducts of beams of different specifications, existing equipment requires frequent adjustment of the rotating rod to keep it in the center of the duct, which affects the construction progress and is prone to shaking or displacement, reducing cleaning efficiency.

Method used

The system employs fixed and adjustable components, using a combination of sliding rods, moving parts, limiting parts, and threaded rods to ensure the cleaning tool is stably fixed in the prestressed ducts of the beam. Arc-shaped limiting parts and anti-slip grooves increase friction and prevent shaking. The adjustable component allows for quick height adjustment of the equipment through plug-in parts and compression springs, adapting to ducts of different heights.

Benefits of technology

It improves the stability and accuracy of hole cleaning operations, enhances the versatility of the equipment and the hole cleaning effect, and ensures that the construction progress is not affected.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of beam body prestressed duct cleaning, and discloses beam body prestressed duct automatic cleaning equipment which comprises a base, a supporting rod is slidably connected to the upper portion of the base, a fixing frame is fixedly connected to the upper portion of the supporting rod, and a fixing mechanism is arranged on the inner wall of the fixing frame. The fixing mechanism comprises a fixing assembly and an adjusting assembly, the fixing assembly comprises a sliding rod, and the sliding rod is fixedly connected to the inner wall of the fixing frame. According to the hole cleaning tool, through matched use of the fixing mechanism and the beam body, when the threaded rod is rotated, the movable piece drives the hinge rod to move, then the supporting plate moves up and down, the limiting piece is driven to be clamped in a prestress hole of the beam body, the hole cleaning tool is prevented from shaking or sliding off in the working process, and the stability and accuracy of hole cleaning operation are ensured; and meanwhile, the rotating rod is located in the center of the hole channel all the time, and the device is suitable for beam body prestress hole channels of different specifications.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning prestressed ducts in beams, and in particular to an automatic cleaning device for prestressed ducts in beams. Background Technology

[0002] In the field of bridge engineering construction, the application of prestressed beam technology is extremely widespread. It improves the load-bearing capacity and crack resistance of the beam by reserving prestressed ducts in the beam and inserting prestressing tendons, thereby ensuring the stability and safety of the bridge structure.

[0003] With the continuous expansion of bridge construction scale and the increasing demands of construction technology, some simple mechanical cleaning equipment has emerged. However, some of these devices lack adaptability to prestressed ducts of different beam specifications. When dealing with ducts of varying diameters, workers often need to frequently adjust the rotating rod required for cleaning to keep it at the center of the duct, thus affecting the construction progress. At the same time, the equipment cannot be firmly fixed to the beam during cleaning operations, which can easily lead to shaking and displacement, reducing cleaning efficiency. Therefore, an automatic cleaning device for prestressed ducts of beams is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic cleaning device for prestressed ducts in beams, which aims to solve the problem in the prior art that "when facing ducts with large diameters, it is necessary to frequently adjust the rotating rod required for cleaning to keep it at the center of the duct, thus affecting the construction progress".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cleaning device for prestressed ducts of beams, including a base (1), a support rod (2) slidably connected to the upper part of the base (1), a fixed frame (3) fixedly connected to the upper part of the support rod (2), and a fixing mechanism provided on the inner wall of the fixed frame (3), the fixing mechanism including a fixing component and an adjusting component;

[0006] The fixing component includes a slide rod (51), which is fixedly connected to the inner wall of the fixing frame (3). A movable part (52) is slidably connected to the outer side of the slide rod (51). Two sets of movable parts (52) are provided. A limiting part (57) for inserting into the prestressed hole of the beam is fixedly connected to the rear side of the movable part (52). The limiting part (57) is arc-shaped. A connecting component (7) is provided on the upper and lower outer sides of the movable part (52). A threaded rod (56) for driving the movable part (52) to move is threadedly connected to the inner wall of the right side of the fixing frame (3). A support (58) is fixedly connected to the front of the fixing frame (3). A rotating rod (4) with a cleaning head installed on the rear side is provided on the inner wall of the support (58), and a driving device is provided on the front side of the rotating rod (4).

[0007] As a further description of the above technical solution:

[0008] The connecting assembly (7) includes a hinge rod (53) rotatably connected to the inner wall of two sets of moving parts (52). The upper part of the hinge rod (53) is rotatably connected to a support plate (54) for connecting two adjacent sets of hinge rods (53). The lower part of the support plate (54) is fixedly connected to a guide rod (55) for maintaining the stable movement of the support plate (54), and the guide rod (55) slides through the inner wall of the fixed frame (3).

[0009] As a further description of the above technical solution:

[0010] The adjustment assembly includes a limiting plate, which is fixedly connected to the upper part of the base. The support rod slides through the inner wall of the limiting plate. A connector is slidably connected to the inner wall of the limiting plate. Two sets of connectors are provided. The two sets of connectors are elastically connected by a compression spring. A slot is provided on the outer side of the fixed frame. The connector is inserted into the inner wall of the slot.

[0011] As a further description of the above technical solution:

[0012] The compression spring is disposed inside the limiting plate. The inner wall of the limiting plate is vertically slidably connected to a sliding plate for limiting the insertion piece. The sliding plate slides outside the insertion piece. A counterweight block is fixedly connected to the lower part of the sliding plate to apply weight to the sliding plate.

[0013] As a further description of the above technical solution:

[0014] The connector is L-shaped, and the support and limiting components cooperate to keep the rotating rod at the center point of the two sets of limiting components. The limiting components are provided with anti-slip grooves on the outside, and the threaded rod is rotatably connected to the inner wall of the moving component.

[0015] As a further description of the above technical solution:

[0016] A crank handle is provided on the outside of the threaded rod.

[0017] As a further description of the above technical solution:

[0018] The support plate is provided in two sets, and the two sets of support plates are symmetrically arranged with the center line of the fixed frame as the axis of symmetry.

[0019] As a further description of the above technical solution:

[0020] An operating groove is provided through the upper part of the skateboard.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation of the fixing mechanism and the beam, when the threaded rod is rotated, the moving part drives the hinge rod to move, thereby causing the support plate to move up and down, and causing the limiting part to be engaged in the prestressed hole of the beam, preventing the hole cleaning tool from shaking or slipping during the operation, ensuring the stability and accuracy of the hole cleaning operation, improving the hole cleaning effect and work efficiency, and at the same time, the rotating rod is always in the center of the hole, adapting to prestressed holes of beams of different specifications.

[0023] 2. In this utility model, by adjusting the use of the components and moving the connector to disengage it from the slot, the support rod can be moved up and down. After reaching the appropriate position, the connector is released, and under the action of the compression spring, the connector is reinserted into the slot and fixed. This allows for convenient and quick adaptation to the cleaning needs of prestressed ducts in beams of different heights, thus improving the versatility of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the support mechanism in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the support component in this utility model.

[0027] Figure 4 This is a three-dimensional structural diagram of the limiting component in this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the disassembled auxiliary components in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Support rod; 3. Fixing frame; 4. Rotating rod; 51. Slide rod; 52. Moving part; 53. Hinge rod; 54. Support plate; 55. Guide rod; 56. Threaded rod; 57. Limiting part; 58. Supporting part; 61. Limiting plate; 62. Connector; 63. Compression spring; 64. Slot; 65. Slide plate; 66. Counterweight. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an automatic cleaning device for prestressed ducts in beams, comprising a base 1 as the basic support component of the entire device. A support rod 2 is slidably connected to the upper part of the base 1, serving to connect the base 1 and a fixed frame 3. By sliding on the base 1, the height of the fixed frame 3 can be adjusted to meet the cleaning requirements of prestressed ducts in beams of different heights. The fixed frame 3 is fixedly connected to the upper part of the support rod 2, providing support for fixing the cleaning tool. A fixing mechanism is provided on the inner wall of the fixed frame 3, which includes a fixing component and an adjusting component. The fixing component includes a slide rod 51, providing a sliding track for the moving part 52, ensuring that the moving part 52 can slide smoothly within the fixed frame 3. Two sets of slide rods 51 are provided, with the slide rod 51 fixedly connected to the inner wall of the fixed frame 3, and the moving part 52 slidably connected to the outer side of the slide rod 51, which can drive the limiting component 57 to fix the limit. Located within the prestressed ducts of the beam, the movable component 52 is provided in two sets. A limiting component 57 for insertion into the prestressed ducts of the beam is fixedly connected to the rear side of the movable component 52. The limiting component 57 is arc-shaped and has an anti-slip groove on its outer side. When the equipment is working, the arc-shaped limiting component 57 can better fit the prestressed ducts of the beam. The anti-slip groove increases the friction with the duct wall, preventing the cleaning tool from shaking or slipping during operation, ensuring the stability and accuracy of the cleaning operation. The upper and lower outer sides of the movable component 52 are provided with connecting components. The connecting components include hinge rods 53 rotatably connected to the inner walls of the two sets of movable components 52. When the movable component 52 moves, the hinge rods 53 will rotate with the movement of the movable component 52. The horizontal movement of the movable component 52 is converted into the vertical movement of the support plate 54 through the hinge, thereby driving the other set of movable components 52 to move in the opposite direction.

[0033] Reference Figure 2 - Figure 4The upper part of the hinge rod 53 is rotatably connected to a support plate 54 for connecting two adjacent sets of hinge rods 53. The lower part of the support plate 54 is fixedly connected to a guide rod 55 for maintaining the stable movement of the support plate 54. The guide rod 55 slides through the inner wall of the fixed frame 3. The support plate 54 and the guide rod 55 work together to synchronize the movement of the moving part 52, thereby fixing the device in the prestressed duct of the beam. The inner wall of the right side of the fixed frame 3 is threadedly connected to a threaded rod 56 for driving the moving part 52 to move. A crank is provided on the outside of the threaded rod 56. By turning the crank, the threaded rod 56 is driven to rotate. Using the threaded transmission principle, the moving part 52 slides on the slide rod 51, thereby realizing the precise adjustment of the position of the support plate 54 and the limiting part 57 to adapt to the prestressed duct of the beam of different specifications. The threaded rod 56 is rotatably connected to the inner wall of the moving part 52. A support member 58 is fixedly connected to the front of the 3rd section, providing an installation position for the rotating rod 4. The rotating rod 4 can be used to install a rotating cleaning head for cleaning the prestressed ducts of the beam, enhancing the equipment's fixation effect on the cleaning tool. The inner wall of the support member 58 is provided with a rotating rod 4 on the rear side with the cleaning head installed, and a driving device is provided on the front side of the rotating rod 4. The device contains a motor and an electric telescopic rod, and rollers are provided at the bottom for moving the equipment. The motor drives the rotating rod 4 to rotate, and the electric telescopic rod drives the motor to move up and down. The support member 58 and the limiting member 57 cooperate to keep the rotating rod 4 at the center point of the two sets of limiting members 57, which can adapt to prestressed ducts of different specifications. The rod body for installing the rotating cleaning head for cleaning the prestressed ducts of the beam is driven by an external motor to rotate and clean the prestressed ducts. This technology is existing technology, so it will not be described in detail.

[0034] Reference Figure 2 and Figure 5 The adjustment assembly includes a limiting plate 61, which is fixedly connected to the upper part of the base 1. The limiting plate 61 limits and guides the support rod 2, and provides an installation base for the connector 62 and compression spring 63. The support rod 2 slides through the inner wall of the limiting plate 61. The connector 62 is slidably connected to the inner wall of the limiting plate 61. There are two sets of connectors 62. When it is necessary to adjust the height of the fixed frame 3, the connector 62 is moved to disengage from the slot 64 on the outside of the fixed frame 3, so that the support rod 2 can be moved up and down. The two sets of connectors 62 are elastically connected by the compression spring 63, which provides elastic force to the connector 62 so that it can remain inserted into the slot 64 when no external force is applied, thus ensuring that the height of the fixed frame 3 is fixed. The fixed frame 3 has multiple slots 64 on the outside, which are used in conjunction with the connectors 62 to fix the position of the connectors 62, thereby fixing the height of the fixed frame 3. The connectors 62 are inserted into the inner wall of the slots 64.

[0035] Furthermore, a compression spring 63 is disposed inside the limiting plate 61. A sliding plate 65 for limiting the connector 62 is vertically slidably connected to the inner wall of the limiting plate 61. This is used to limit the connector 62 and prevent it from dislodging from the slot 64 during operation. An operating groove is provided through the upper part of the sliding plate 65, which is convenient for the operator to pull the sliding plate 65 to release the limiting of the connector 62. The sliding plate 65 slides outside the connector 62. A counterweight block 66 is fixedly connected to the lower part of the sliding plate 65 to apply weight to the sliding plate 65, thereby increasing the gravity of the sliding plate 65 and preventing the operation of the connector 62 from being affected by shaking or displacement. This improves the stability of the adjustment component operation. The connector 62 is L-shaped for easy operation by the operator. Two sets of support plates 54 are provided, and the two sets of support plates 54 are symmetrically arranged with the center line of the fixed frame 3 as the axis of symmetry.

[0036] Working principle: In use, firstly, slide plate 65 is pulled through the operating groove on the upper part of slide plate 65. Slide plate 65 slides vertically on the inner wall of limit plate 61, releasing the limit of connector 62. At this time, press connector 62 to overcome the elastic force of compression spring 63 and move it, so that connector 62 is disengaged from the slot 64 on the outside of fixed frame 3. At this time, support rod 2 is no longer locked and can slide up and down on the inner wall of limit plate 61, thereby adjusting the height of fixed frame 3. After reaching the appropriate position, release slide plate 65. Under the elastic force of compression spring 63, connector 62 is reinserted into slot 64, and the height of fixed frame 3 is locked, completing the adjustment of equipment height.

[0037] By rotating the handle on the outside of the threaded rod 56, the moving part 52 slides on the slide rod 51, and the limiting part 57 fixedly connected to the rear of the moving part 52 moves accordingly. The two sets of moving parts 52 are connected to the support plate 54 through the hinge rod 53. The movement of the moving part 52 drives the hinge rod 53 to rotate, thereby causing the support plate 54 to move up and down. The guide rod 55 at the bottom of the support plate 54 slides on the inner wall of the fixed frame 3 to ensure the stability of the movement of the support plate 54. At the same time, it drives the two sets of moving parts 52 to move in opposite directions, so that the limiting part 57 is engaged in the prestressed hole of the beam. With its arc design and anti-slip groove, it fits tightly against the hole wall, increases the friction, and prevents the cleaning tool from shaking or slipping during operation, thus fixing the equipment stably on the prestressed hole of the beam.

[0038] After the equipment is installed, fixed, and height adjusted, the cleaning tool, such as the rotating cleaning head, is installed on the rotating rod 4 on the inner wall of the support 58. The rotating rod 4 is driven by an external motor. This driving technology is existing technology. The rotating rod 4 drives the cleaning head to rotate and clean the prestressed ducts of the beam. During the cleaning process, the limiting part 57 always maintains close contact with the prestressed duct wall to prevent the cleaning tool from shaking and ensure that the cleaning operation can be carried out stably and accurately, thereby improving the cleaning effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cleaning device for prestressed ducts in beams, comprising a base (1), characterized in that: The base (1) is slidably connected to a support rod (2), and the support rod (2) is fixedly connected to a fixed frame (3). The inner wall of the fixed frame (3) is provided with a fixing mechanism, which includes a fixing component and an adjusting component. The fixing component includes a slide rod (51), which is fixedly connected to the inner wall of the fixing frame (3). A movable part (52) is slidably connected to the outer side of the slide rod (51). Two sets of movable parts (52) are provided. A limiting part (57) for inserting into the prestressed hole of the beam is fixedly connected to the rear side of the movable part (52). The limiting part (57) is arc-shaped. A connecting component is provided on the upper and lower outer sides of the movable part (52). A threaded rod (56) for driving the movable part (52) to move is threadedly connected to the inner wall of the right side of the fixing frame (3). A support (58) is fixedly connected to the front of the fixing frame (3). A rotating rod (4) with a cleaning head installed on the rear side is provided on the inner wall of the support (58), and a driving device is provided on the front side of the rotating rod (4).

2. The automatic cleaning device for prestressed ducts in beams according to claim 1, characterized in that: The connecting assembly includes a hinge rod (53) rotatably connected to the inner wall of two sets of moving parts (52). The upper part of the hinge rod (53) is rotatably connected to a support plate (54) for connecting two adjacent sets of hinge rods (53). The lower part of the support plate (54) is fixedly connected to a guide rod (55) for maintaining the stable movement of the support plate (54), and the guide rod (55) slides through the inner wall of the fixed frame (3).

3. The automatic cleaning device for prestressed ducts in beams according to claim 1, characterized in that: The adjustment assembly includes a limiting plate (61), which is fixedly connected to the upper part of the base (1). The support rod (2) slides through the inner wall of the limiting plate (61). A connector (62) is slidably connected to the inner wall of the limiting plate (61). Two sets of connectors (62) are provided, and the two sets of connectors (62) are elastically connected by a compression spring (63). A slot (64) is provided on the outer side of the fixing frame (3), and the connector (62) is inserted into the inner wall of the slot (64).

4. The automatic cleaning device for prestressed ducts in beams according to claim 3, characterized in that: The compression spring (63) is disposed inside the limiting plate (61). The inner wall of the limiting plate (61) is vertically slidably connected to a sliding plate (65) for limiting the insertion piece (62), and the sliding plate (65) slides outside the insertion piece (62). The lower part of the sliding plate (65) is fixedly connected to a counterweight (66) for applying weight to the sliding plate (65).

5. The automatic cleaning device for prestressed ducts in beams according to claim 3, characterized in that: The connector (62) is L-shaped. The support (58) and the limiting member (57) cooperate to keep the rotating rod (4) at the center point of the two sets of limiting members (57). The limiting member (57) is provided with an anti-slip groove on the outside. The threaded rod (56) is rotatably connected to the inner wall of the moving member (52).

6. The automatic cleaning device for prestressed ducts in beams according to claim 1, characterized in that: A crank handle is provided on the outside of the threaded rod (56).

7. The automatic cleaning device for prestressed ducts in beams according to claim 2, characterized in that: The support plate (54) is provided in two sets, and the two sets of support plates (54) are symmetrically arranged with the center line of the fixed frame (3) as the axis of symmetry.

8. The automatic cleaning device for prestressed ducts in beams according to claim 4, characterized in that: An operating groove is provided through the upper part of the sliding plate (65).