A regulating well wall repairing device

Abstract

The present application relates to the technical field of surge shaft construction equipment, and specifically discloses a surge shaft wall repairing device, a fixed pile is vertically arranged in the surge shaft, a side wall of the fixed pile is provided with a spray head for spraying concrete towards the wall of the surge shaft, and the side wall of the fixed pile is also provided with an arc-shaped trowel for scraping the sprayed concrete; a rotating and lifting assembly is used to drive the fixed pile to rotate and lift upwards, and a vibrating assembly is used to drive the fixed pile to vibrate. The device arranges the fixed pile at an axial position of the surge shaft, drives the fixed pile to rotate and lift upwards through the rotating and lifting assembly, and the spray head and the arc-shaped trowel rotate to spray and smooth the concrete on the wall of the surge shaft; the concrete at different elevations of the wall of the surge shaft is sprayed and smoothed in the lifting process, the wall of the surge shaft is repaired, the fixed pile is driven to vibrate by the vibrating assembly, the vibration is transmitted to the arc-shaped trowel to further vibrate and compact the mortar, the smoothness and compactness of the wall are improved, the safety hazard of manual operation is avoided, and the operation precision is improved.

Description

Technical Field

[0001] This invention relates to the field of pressure regulating well construction equipment technology, specifically to a pressure regulating well wall repair device. Background Technology

[0002] As a core structure in water conservancy and hydropower projects for controlling water hammer pressure and ensuring the safety of water conveyance systems, the quality of the concrete structure of a surge tank directly affects the operational stability of the tunnel shaft system. Under complex geological conditions and long-term hydraulic loads, the surge tank wall is prone to surface defects such as pitting, air bubbles, and misalignment. These defects not only affect the aesthetics of the surge tank but also reduce the durability and stability of the concrete structure, posing potential safety hazards for long-term operation. Therefore, it is necessary to re-coat the surge tank wall with concrete to repair these defects.

[0003] Traditional repair of defects in surge tank walls primarily relies on manually erecting high-altitude work platforms and employing manual grouting and leveling techniques. This method has significant technical limitations: First, the working space inside the well is confined and humid, and workers are suspended at height for extended periods, posing safety hazards such as falls and being struck by objects. Second, manual grouting makes it difficult to precisely control the concrete spraying pressure and leveling force, easily leading to poor bonding between the repair layer and the substrate, resulting in a high recurrence rate of defects such as pitting and porosity. Third, manual grouting requires the use of templates, and the flatness of the template joints depends on the worker's experience, especially in the repair of curved well walls where millimeter-level precision control is difficult to achieve, causing secondary misalignment. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure regulating well wall repair device to solve the safety hazards and low precision of manual grouting when repairing pressure regulating well walls.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a pressure regulating well wall repair device, comprising a rotating lifting assembly, a grouting pipe, a fixing pile, a nozzle, an arc-shaped trowel, and a vibration assembly;

[0006] The fixed pile is vertically installed inside the surge tank and located along the axis of the surge tank. The fixed pile is hollow and has nozzles on its side walls for spraying concrete toward the wall of the surge tank. The side walls of the fixed pile are also equipped with arc-shaped trowels for spreading the sprayed concrete evenly.

[0007] The grouting pipe is connected at one end to a concrete transport truck outside the surge tank and at the other end to a fixed pile.

[0008] The rotating lifting assembly is installed at the wellhead of the pressure regulating well and is used to drive the fixed pile to rotate and lift it upward.

[0009] The vibration assembly is installed on the fixed pile to drive the fixed pile to vibrate.

[0010] As a further technical solution of the above scheme, the rotating lifting assembly includes a support frame, a servo motor, and a screw drive shaft; the support frame includes a platform, inclined support legs, and a base plate; multiple base plates are provided and arranged circumferentially along the wellhead of the pressure regulating well, the platform is located directly above the wellhead of the pressure regulating well, and the platform is connected to multiple base plates through inclined support legs; the servo motor is installed on the platform; the bottom of the screw drive shaft is connected to a fixed pile, the upper part passes through the platform and the servo motor, and is screwed to the servo motor.

[0011] As a further technical solution of the above scheme, the outer side wall of the fixed pile is provided with a mounting block, and a connecting arm is hinged on the mounting block. The other end of the connecting arm is hinged to the arc-shaped trowel. The outer side wall of the fixed pile is also provided with a mounting plate, and a spring is provided on the mounting plate. One end of the spring is connected to the mounting plate, and the other end is connected to the middle of the connecting arm.

[0012] As a further technical solution to the above scheme, multiple mounting blocks, connecting arms and arc-shaped trowels are provided and distributed along the circumference of the fixed pile.

[0013] As a further technical solution to the above solution, the nozzle is provided with multiple nozzles.

[0014] As a further technical solution to the above solution, the nozzle is a universal bamboo-joint nozzle.

[0015] As a further technical solution of the above scheme, the vibration component includes an eccentric motor, a bearing and a sector-shaped eccentric block; the eccentric motor is installed inside the fixed pile, and the output shaft of the eccentric motor extends out of the fixed pile and is connected to the sector-shaped eccentric block through the bearing.

[0016] Compared with the prior art, this invention has the following advantages and beneficial effects: The device sets the fixed pile at the axial position of the surge tank, and drives the fixed pile to rotate and lift it via a rotating lifting assembly. Since the nozzle and arc-shaped trowel are both mounted on the fixed pile, they rotate along with it when the fixed pile rotates, spraying and smoothing the concrete on the surge tank wall. During the lifting process, the nozzle and arc-shaped trowel spray and smooth the surge tank wall at different elevations, achieving the repair of the surge tank wall. Simultaneously, the vibration assembly drives the fixed pile to vibrate, transmitting the vibration to the arc-shaped trowel to further compact the mortar, improving the flatness and density of the well wall, avoiding the safety hazards of manual operation, and improving operational accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device in use.

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Figure 3This is a schematic diagram of the longitudinal section of the fixed pile.

[0020] Figure 4 for Figure 2 A schematic diagram of the structure of the BB section.

[0021] The labels in the diagram are as follows: Servo motor - 12; Screw drive shaft - 13; Platform - 14; Diagonal support leg - 15; Base plate - 16; Grouting pipe - 2; Fixed pile - 3; Nozzle - 4; Arc-shaped trowel - 5; Mounting block - 6; Connecting arm - 7; Mounting plate - 8; Spring - 9; Vibration assembly - 10; Eccentric motor - 101; Bearing - 102; Fan-shaped eccentric block - 103. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, so as to provide a better understanding of the concept of the present invention, the technical problem solved, the technical features constituting the technical solution, and the technical effects brought about.

[0023] like Figures 1-4 As shown, a pressure regulating well wall repair device includes a rotating lifting assembly, a grouting pipe 2, a fixing pile 3, a nozzle 4, an arc-shaped trowel 5, and a vibration assembly 10.

[0024] The fixed pile 3 is vertically installed inside the surge tank and located along the axis of the surge tank. The fixed pile 3 is hollow and has nozzles 4 on its side wall for spraying concrete toward the wall of the surge tank. The side wall of the fixed pile 3 is also equipped with an arc-shaped trowel 5 for scraping the sprayed concrete evenly.

[0025] Grouting pipe 2, one end is connected to a concrete transport vehicle outside the surge tank, and the other end is connected to a fixed pile 3;

[0026] The rotating lifting assembly is installed at the wellhead of the pressure regulating well and is used to drive the fixed pile 3 to rotate and lift it upward.

[0027] The vibration component 10 is installed on the fixed pile 3 and is used to drive the fixed pile 3 to vibrate.

[0028] When using this device, a rotating lifting assembly is installed on the outer wall of the pressure regulating well. The fixed pile 3 is installed inside the pressure regulating well as the mounting base for the nozzle 4 and the arc-shaped trowel 5. The rotating lifting assembly is used to drive the fixed pile 3 to rotate and move up and down. The nozzle 4 is directly installed on the outer wall of the fixed pile 3, and the arc-shaped trowel 5 is connected to the outer wall of the fixed pile 3. The movement of the nozzle 4, the arc-shaped trowel 5 and the fixed pile 3 is consistent. The fixed pile 3 drives the nozzle 4 to rotate and spray concrete evenly around the circumference of the pressure regulating well wall. During the upward movement, it covers all positions of the inner wall of the pressure regulating well. At the same time, the arc-shaped trowel 5 rotates with the fixed pile 3 to scrape the concrete-sprayed pressure regulating well wall. Since the fixed pile 3 is in the axial direction of the pressure regulating well, the distance between the arc-shaped trowel 5 and the pressure regulating well wall remains unchanged, so that the scraping position remains unchanged during rotation, allowing the concrete to be smoothed in time and improving the repair effect of spraying and troweling. Preferably, the nozzle 4 is positioned in front of the arc-shaped trowel 5 to ensure that the arc-shaped trowel 5 can scrape the concrete in time after the nozzle 4 sprays the concrete. In this embodiment, the interior of the fixed pile 3 serves as a cavity for the concrete, which is then sprayed out through the nozzle 4. When the curved trowel 5 scrapes the material, the vibration component 10 is activated to vibrate. The vibration component 10 is mounted on the fixed pile 3 and drives the fixed pile 3 to vibrate. The fixed pile 3 transmits the vibration to the curved trowel 5, which compacts the mortar during the rotating scraping process, improving the flatness and density of the well wall.

[0029] like Figure 1As shown in a preferred embodiment, the rotating lifting assembly includes a support frame, a servo motor 12, and a screw drive shaft 13. The support frame includes a platform 14, inclined support legs 15, and a base plate 16. Multiple base plates 16 are provided, arranged circumferentially along the wellhead of the pressure regulating well. The platform 14 is located directly above the wellhead of the pressure regulating well, and the platform 14 is connected to multiple base plates 16 via the inclined support legs 15. The servo motor 12 is mounted on the platform 14. The bottom of the screw drive shaft 13 is connected to the fixed pile 3, and its upper part passes through the platform 14 and the servo motor 12, and is screwed to the servo motor 12. In this embodiment, when rotating lifting is required, the servo motor 12 is activated. The servo motor 12 is directly connected to the shaft end of the screw drive shaft 13 via a coupling, converting the motor's rotational motion into the screw's helical motion. Because the screw drive shaft 13 is screwed to the platform 14, it can move up and down vertically, or rotate, causing the fixed pile to rotate and rise together. In use, a base plate 16 is installed at the wellhead of the pressure regulating well as a support, and a platform 14 serves as the mounting base for the servo motor 12. Diagonal bracing legs 15 connect the base plate 16 and the platform 14 support, improving the stability of the device. Since the pressure regulating well has a circular cross-section, at least three base plates 16 are installed, evenly spaced along the circumference of the pressure regulating well, providing better stable support. Preferably, the spiral drive shaft 13 has a spiral structure, with the spiral groove spacing being less than the height of the arc-shaped trowel 5. This design ensures that after the arc-shaped trowel 5 rotates around the well wall once, it perfectly overlaps with the previous trowel position, avoiding blind spots or repeated troweling.

[0030] like Figure 2 and Figure 3 As shown, in a preferred embodiment, the outer wall of the fixed pile 3 is provided with a mounting block 6, and a connecting arm 7 is hinged to the mounting block 6. The other end of the connecting arm 7 is hinged to the arc-shaped trowel 5. The outer wall of the fixed pile 3 is also provided with a mounting plate 8, and a spring 9 is provided on the mounting plate 8. One end of the spring 9 is connected to the mounting plate 8, and the other end is connected to the middle of the connecting arm 7. In this embodiment, both ends of the connecting arm 7 are connected to the mounting block 6 and the arc-shaped trowel 5 by hinges. The arc-shaped trowel 5 has a certain degree of freedom of movement during use. The connecting arm 7 can swing flexibly with the mounting plate 8 as the fulcrum, thereby driving the arc-shaped trowel 5 to rotate up and down, which can adapt to the spraying and troweling requirements of different curvatures and angles of the pressure regulating well wall. At the same time, a spring 9 is added, which is connected to the middle of the connecting arm 7. The spring 9 always provides an upward elastic force to the connecting arm 7. The elastic force is transmitted to the arc-shaped trowel 5 through the connecting arm 7, so that the arc-shaped trowel 5 can adjust the contact pressure between itself and the well wall according to the actual situation of the well wall surface, forming a dynamic pressure compensation contact. This allows the arc-shaped trowel 5 to adaptively adhere to the well wall even when there are slight undulations or unevenness in the well wall, maintaining the uniformity and consistency of the spraying operation and improving the spraying effect.

[0031] like Figure 2 and Figure 3 As shown in the preferred embodiment, multiple mounting blocks 6, connecting arms 7, and arc-shaped trowels 5 are provided and distributed circumferentially along the fixed pile 3. In this embodiment, in order to improve the troweling effect of the device, the mounting blocks 6, connecting arms 7, and arc-shaped trowels 5 are regarded as a set of troweling devices, and multiple sets are set up for simultaneous troweling. Multiple troweling can improve the troweling effect.

[0032] like Figure 2 and Figure 3 As shown, in a preferred embodiment, multiple nozzles 4 are provided. In this embodiment, multiple nozzles 4 can operate simultaneously to increase the spray volume.

[0033] like Figure 2 and Figure 4 As shown, in a preferred embodiment, the nozzle 4 is a universal bamboo-joint nozzle. In this embodiment, the nozzle is configured as a universal bamboo-joint nozzle, which includes a quick-connect structure at the tail, a bamboo-joint tube in the middle, and a duckbill nozzle at the end. The quick-connect structure has efficient and convenient connection characteristics, enabling it to be quickly connected to other pipe fittings to ensure the efficiency of concrete delivery. The bamboo-joint tube adopts a segmented and flexible structure design, which improves the multi-angle rotation capability of the device and allows for flexible adjustment of the spraying angle and position according to spraying requirements. The duckbill nozzle is configured with a flat opening structure, which allows the concrete to be sprayed evenly onto the well wall surface in a uniform and fine mist form, effectively avoiding quality problems such as uneven spraying and dripping, and ensuring that the concrete forms a uniform and dense covering layer on the well wall surface.

[0034] like Figure 3As shown, in a preferred embodiment, the vibration assembly 10 includes an eccentric motor 101, a bearing 102, and a sector-shaped eccentric block 103. The eccentric motor 101 is disposed inside the fixed pile 3, and the output shaft of the eccentric motor 101 extends out of the fixed pile 3 and is connected to the sector-shaped eccentric block 103 via the bearing. In this embodiment, when the vibration assembly 10 is working, the eccentric motor 101 is activated. The output shaft of the eccentric motor 101 is connected to the sector-shaped eccentric block 103 via the bearing 102. The bearing 102 facilitates the rotation of the sector-shaped eccentric block 103, forming a high-frequency micro-vibration structure. The vibration is transferred to the arc-shaped trowel 5 through the vibration transfer on the fixed pile 3, compacting the mortar during scraping. In some preferred embodiments, when the outer wall of the fixed pile 3 is provided with a mounting plate 8 and a spring 9, the excitation force of the vibration assembly 10 is transmitted from bottom to top, forming an up-and-down linkage with the dynamic pressure compensation of the spring 9. This ensures that the arc-shaped trowel 5 fits tightly against the well wall and also removes air bubbles through micro-vibration, reducing surface defects. A concrete conveying pipe and a cable are installed inside the fixed pile 3. The concrete conveying pipe serves as a transmission channel for concrete mortar, which can smoothly and efficiently deliver the concrete mortar from the concrete conveying pipe to the universal bamboo joint nozzle 4, providing a stable supply of raw materials for the spraying operation. The cable is connected to the eccentric motor 101 to supply it with electrical energy.

[0035] The terms "connection" and "fixing" appearing in the description of this invention can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this invention should be understood according to the specific circumstances.

[0036] In the description of this invention, the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., are used only to indicate the orientation or positional relationship for the convenience of describing this invention and to simplify the description, and do not indicate or imply a specific orientation that the device or element referred to must have, and therefore should not be construed as a limitation of this invention.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for repairing the wellbore of a pressure regulating well, characterized in that: It includes a rotating lifting assembly, a grouting pipe (2), a fixed pile (3), a nozzle (4), an arc-shaped trowel (5), and a vibration assembly (10). The fixed pile (3) is vertically installed in the pressure regulating well and located in the axial direction of the pressure regulating well. The fixed pile (3) is hollow and has a nozzle (4) on its side wall for spraying concrete toward the wall of the pressure regulating well. The side wall of the fixed pile (3) is also provided with an arc-shaped trowel (5) for scraping the sprayed concrete evenly. One end of the grouting pipe (2) is connected to a concrete transport vehicle outside the pressure regulating well, and the other end is connected to a fixed pile (3). The rotating lifting assembly is installed at the wellhead of the pressure regulating well to drive the fixed pile (3) to rotate and lift upward; The vibration component (10) is installed on the fixed pile (3) to drive the fixed pile (3) to vibrate; The rotating lifting assembly includes a support frame, a servo motor (12), and a helical drive shaft (13); the support frame includes a platform (14), inclined support legs (15), and a base plate (16); multiple base plates (16) are provided and arranged around the wellhead of the pressure regulating well; the platform (14) is located directly above the wellhead of the pressure regulating well; the platform (14) is connected to multiple base plates (16) through the inclined support legs (15); the servo motor (12) is set on the platform (14); the bottom of the helical drive shaft (13) is connected to the fixed pile (3), and the upper part passes through the platform (14) and the servo motor (12) and is screwed to the servo motor (12); The outer wall of the fixed pile (3) is provided with a mounting block (6), and a connecting arm (7) is hinged on the mounting block (6). The other end of the connecting arm (7) is hinged to the arc-shaped trowel (5). The outer wall of the fixed pile (3) is also provided with a mounting plate (8), and a spring (9) is provided on the mounting plate (8). One end of the spring (9) is connected to the mounting plate (8), and the other end is connected to the middle of the connecting arm (7). The vibration assembly (10) includes an eccentric motor (101), a bearing (102), and a sector-shaped eccentric block (103); the eccentric motor (101) is installed inside the fixed pile (3), and the output shaft of the eccentric motor (101) extends out of the fixed pile (3) and is connected to the sector-shaped eccentric block (103) through the bearing.

2. The pressure regulating wellbore repair device as described in claim 1, characterized in that: Multiple mounting blocks (6), connecting arms (7) and arc-shaped trowels (5) are provided and distributed circumferentially along the fixed pile (3).

3. The pressure regulating well wall repair device as described in claim 1, characterized in that: The nozzle (4) is provided with multiple nozzles.

4. A pressure regulating well wall repair device as described in claim 1 or 3, characterized in that: The nozzle (4) is a universal bamboo joint nozzle.

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