Civil engineering maintenance construction pouring device

Abstract

The invention belongs to the technical field of maintenance construction pouring, and provides a civil engineering maintenance construction pouring device. The device comprises a fixing assembly, and the fixing assembly comprises an outer fixing frame and an inner lifting part; the rotary spray head assembly is arranged at the inner lifting part of the fixing assembly; the rotary nozzle assembly comprises a spray pipe, a rotary pipe and a sliding seat; the pressure pump flow part is communicated with the rotary spray head assembly; the pressure pump flow part comprises a liquid adding box, a high-pressure water spraying pump and a driving main machine. A rotating shaft of the driving host is in transmission connection with the high-pressure water-jet pump; a water inlet of the high-pressure water spraying pump is communicated with the liquid adding box; a water outlet of the high-pressure water spraying pump is communicated with the rotating pipe; the high-pressure water jet pump comprises an outer shell, a driving impeller and a rotating shaft; the outer shell is provided with a flowing cavity, a water inlet is formed in the top of the flowing cavity, and a water outlet is formed in one outer side of the bottom; a rotating cavity is formed in the other outer side of the bottom; wherein the inner cavity of the flow cavity has a streamlined surface.

Description

Technical Field

[0001] This invention relates to the field of maintenance and construction irrigation equipment technology, specifically to a civil engineering maintenance and construction irrigation device. Background Technology

[0002] In the field of building foundation engineering, timely and effective curing and grouting of the pile hole wall after the pile foundation construction is completed is a key process to ensure the quality of the pile concrete and prevent the hole wall from collapsing. Traditional pile hole curing construction usually relies on specialized grouting equipment to deliver curing water or grout to the inside and surface of the pile hole.

[0003] In pile hole maintenance construction, traditional grouting equipment mainly suffers from two types of technical problems. One type is water-driven lifting equipment, which relies entirely on fluid pressure. To overcome the resistance of deep holes, it requires extremely high water pressure, resulting in huge energy consumption and stringent requirements on the on-site water supply system, limiting its practicality. The other type uses centrifugal pumps as the power source. Its inherent drawback is that it easily draws in gas during startup or operation, causing cavitation. Cavitation severely reduces pump efficiency and head, generates vibration and noise, and corrodes critical components such as the impeller, damaging equipment lifespan and reliability. To avoid cavitation, traditional methods require a cumbersome "priming" operation before startup, pre-filling the pump chamber with liquid to expel air. This is not only inconvenient and affects construction efficiency, but also difficult to complete completely in complex spaces, leaving residual gas to cause further problems.

[0004] Therefore, given the significant bottlenecks in existing technologies and equipment, we propose a novel maintenance and construction irrigation device that optimizes intake conditions, suppresses cavitation at its source, and improves overall operational efficiency and reliability. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a civil engineering maintenance and construction pouring device that can suppress cavitation and improve overall operating efficiency and equipment reliability.

[0006] In a first aspect, the present invention provides a civil engineering maintenance construction pouring device, comprising: a fixing assembly, the fixing assembly including an outer fixing frame and an inner lifting component; the outer fixing frame is fixedly installed outside the pile hole; one end of the inner lifting component is detachably installed on the outer fixing frame, and the other end of the inner lifting component extends into the pile hole; a rotating nozzle assembly, the rotating nozzle assembly being disposed at the inner lifting component of the fixing assembly; the rotating nozzle assembly including a spray pipe, a rotating pipe, and a sliding seat; the sliding seat is slidably installed on the inner lifting component, one end of the rotating pipe is rotatably installed on the sliding seat and communicates with an external liquid source; the spray pipe is disposed at the other end of the rotating pipe; wherein the rotating pipe is disposed at the center position of the spray pipe; the two ends are arranged opposite to each other; and a pressurizing pump component, the pressurizing pump component being connected to the rotating nozzle assembly. The components are interconnected; the pressurizing pump includes a liquid tank, a high-pressure water pump, and a drive unit; the rotating shaft of the drive unit is drivenly connected to the high-pressure water pump; the inlet of the high-pressure water pump is connected to the liquid tank; the outlet of the high-pressure water pump is connected to the rotating pipe; the high-pressure water pump includes a housing, a drive impeller, and a rotating shaft; the housing has a flow cavity, with an inlet at the top and an outlet on one outer side of the bottom; the other outer side of the bottom has a rotating cavity; the inner cavity of the flow cavity has a streamlined surface; both ends of the rotating shaft pass through the rotating cavity and extend into the flow cavity and the housing, respectively; the drive impeller is rotatably installed in the flow cavity and fixedly connected to one end of the rotating shaft; the other end of the rotating shaft is drivenly connected to the drive unit.

[0007] Furthermore, it also includes a main frame and drive wheels; four drive wheels are provided and respectively installed on the four sides of the main frame; the pressurizing pump is installed on the main frame. In practical applications, the purpose of this design is to facilitate the effective movement of important equipment.

[0008] Furthermore, the fixing assembly also includes a bottom support plate, and the inner lifting component is provided with no less than two sliding rods. One end of each sliding rod is fixedly installed on the bottom support plate, and the other end is fixedly installed on the outer fixing frame. In practical applications, the purpose of this design is to achieve the stability of the sliding seat in positioning, thereby ensuring the rotational stability of the rotating pipe and facilitating subsequent pile hole spraying maintenance.

[0009] Furthermore, the rotating nozzle assembly also includes a rotating inner nozzle; the rotating inner nozzle is rotatably mounted on the nozzle pipe. In practical applications, the purpose of this design is to further accelerate the uniform spraying and improve maintenance efficiency.

[0010] Furthermore, the pressurizing pump component also includes a tapered sleeve, which is fixedly installed at the outlet of the outer casing. In practical applications, the purpose of this design is to achieve a pressurizing effect and increase water pressure, while its tapered design also aims to further reduce the generation of air bubbles.

[0011] Furthermore, the pressurizing pump component also includes a flexible telescopic water pipe and a universal joint. One end of the flexible telescopic water pipe is connected to the tapered sleeve, and the other end of the flexible telescopic water pipe is connected to the rotating pipe through the universal joint. In practical applications, the purpose of this design is to facilitate the rotation of the rotating pipe and the lifting height under water pressure, thereby achieving lifting and lowering.

[0012] Furthermore, the high-pressure water pump is also equipped with two sealing rings, which are installed on the rotating shaft and sealed to the rotating cavity. In practical applications, the purpose of this design is to achieve a seal and prevent leakage.

[0013] As can be seen from the above technical solution, the beneficial effects of the civil engineering maintenance and construction pouring device provided by the present invention are as follows: (1) In practical application, a fixed component is first used to place the rotating nozzle assembly of the device inside the pile hole, which makes maintenance construction convenient. (2) Meanwhile, the outlet of the liquid tank in the pressurized pump is located at the inlet of the high-pressure water pump, and the weight potential energy generated by the water directly acts on the pressurized pump, which can quickly fill the flow cavity; the traditional "priming" operation is reduced, and the water pressure can further compress the gas; compared with the traditional centrifugal pump or gear pump, its maintenance and operation are more convenient. (3) Moreover, the design of the flow chamber of the outer shell of the high-pressure water pump is in complete accordance with the flow characteristics of liquid flow, and full flow of liquid can be achieved without external driving force; thus, it can be operated directly. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the main structure of the pressurized pump flow component on the main frame in this invention; Figure 2 This is a top view of the fixed component and the rotating nozzle component at the pile hole in this invention; Figure 3 This is a three-dimensional schematic diagram of the installation of the rotating pipe, the nozzle, and the rotating inner nozzle in this invention. Figure 4This is a schematic diagram of the main structure of the fixing component and the rotating nozzle component at the pile hole in this invention; Figure label: Fixed component 100, outer fixed frame 110, inner lifting component 120, sliding rod 1221, bottom support plate 130, rotating nozzle assembly 200, sliding seat 210, rotating pipe 220, nozzle 230, rotating inner nozzle 240, pressurizing pump component 300, liquid tank 310, high-pressure water pump 320, outer shell 321, flow chamber 321a, water inlet 321b, water outlet 321c, rotating chamber 321d, drive impeller 322, rotating shaft 324, sealing ring 323, drive host 330, tapered sleeve 340, elastic telescopic water pipe 350, water pipe universal joint 360, host frame 400, push wheel 410. Detailed Implementation

[0016] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0017] The basic implementation examples are as follows: Figures 1 to 4 As shown: like Figure 1 - Figure 4 As shown in the figure, the civil engineering maintenance and construction pouring device provided in this embodiment can effectively suppress cavitation and improve overall operation efficiency and equipment reliability.

[0018] The civil engineering maintenance and construction pouring device provided in this embodiment mainly includes a fixed component 100, a rotating nozzle component 200, and a pressurized pump component 300.

[0019] Regarding fixed component 100: The fixing assembly 100 is used to stably position the main body of the device outside the pile hole to be maintained and to provide reliable lifting guidance for the rotating nozzle assembly 200. The fixing assembly 100 includes an outer fixing frame 110, an inner lifting component 120, and a bottom support plate 130.

[0020] In this embodiment, the external fixing frame 110 is fixedly installed on the ground or working platform outside the pile hole by anchor bolts or other fasteners, providing stable foundation support.

[0021] The inner lifting member 120 is preferably composed of at least two vertically arranged sliding rods. These sliding rods are arranged in parallel, with one end (lower end) fixedly mounted on the bottom support plate 130 and the other end (upper end) fixedly connected to the outer fixing frame 110. The bottom support plate 130 is typically placed on the ground, forming a stable frame structure together with the sliding rods. The inner lifting member 120 extends into the pile hole through its sliding rod portion, providing a precise linear guide for the lifting movement of the rotary nozzle assembly 200.

[0022] Regarding the rotary nozzle assembly 200: The rotating nozzle assembly 200 is the core component for performing spray maintenance operations, and it is located in the inner lifting member 120 of the fixed assembly 100. This assembly includes a sliding seat 210, a rotating tube 220, and a spray pipe 230.

[0023] The sliding seat 210 is fitted onto the sliding rod of the inner lifting member 120 and can slide up and down along the axial direction (i.e., vertical direction) of the sliding rod. A linear bearing or bushing may be provided inside the sliding seat 210 to ensure smooth sliding and reduce wear.

[0024] One end (upper end) of the rotating pipe 220 is rotatably mounted on the sliding seat 210 via a bearing or other rotating component. The internal flow channel of the rotating pipe 220 is connected to an external liquid source, specifically through a pipeline described later, which is connected to the pressurized pump flow element 300. The nozzle 230 is located at the other end (lower end) of the rotating pipe 220. In this embodiment, the rotating pipe 220 is preferably located at the center of the nozzle 230, that is, the nozzle 230 is arranged around the lower section of the rotating pipe 220, and the two can be integrally formed or fixedly connected. The nozzle 230 has multiple water outlet holes or nozzles for spraying water onto the inner wall of the pile hole. The extension direction of the nozzle 230 and the rotating pipe 220 is approximately at a certain angle, such as vertical or inclined, to achieve lateral spraying.

[0025] Furthermore, to improve the uniformity and coverage of the spraying, the rotating nozzle assembly 200 also includes a rotating inner nozzle 240. The rotating inner nozzle 240 is rotatably mounted on the end or side of the spray pipe 230 via another bearing mechanism. Under the impact of the water flow from the rotating pipe 220, the rotating inner nozzle 240 can rotate, thereby further dispersing and diffusing the sprayed water curtain, achieving a more refined and uniform spray, and effectively improving the coverage efficiency and curing quality of the curing liquid on the concrete surface.

[0026] Regarding the 300 pressure pump component: The pressurized pump component 300 is used to provide a stable and high-pressure liquid flow for the entire spray system. Its core design focuses on suppressing cavitation and simplifying operation. The pressurized pump component 300 includes a liquid tank 310, a high-pressure water pump 320, and a drive unit 330.

[0027] The drive unit 330, such as an electric motor or diesel engine, has its output shaft connected to the rotating shaft 324 of the high-pressure water injection pump 320 via a coupling.

[0028] The high-pressure water pump 320 is a key component for suppressing cavitation. It includes a housing 321, a drive impeller 322, and a rotating shaft 324.

[0029] The outer casing 321 contains a main flow cavity 321a. The flow cavity 321a has an inlet 321b at its top, an outlet 321c on one side of its bottom outer wall, and a rotating cavity 321d on the other side of its bottom outer wall for mounting the rotating shaft 324. Crucially, the inner surface of the flow cavity 321a is designed as a streamlined curved surface conforming to hydrodynamic characteristics. This streamlined design significantly reduces the flow resistance within the cavity, guides a smooth flow transition, and avoids the generation of local eddies or negative pressure zones, thereby fundamentally reducing gas precipitation and the formation of bubbles (cavitation nuclei), effectively suppressing cavitation.

[0030] Both ends of the rotating shaft 324 pass through the rotating cavity 321d. One end extends into the flow cavity 321a and is fixedly connected to the drive impeller 322; the other end extends to the outside of the outer casing 321 for connection with the drive unit 330. To ensure a seal and prevent liquid leakage from the rotating cavity 321d, two sealing rings 323 (such as mechanical seals or packing seals) are also installed on the rotating shaft 324, forming a sealed connection with the inner wall of the rotating cavity 321d.

[0031] The driving impeller 322 rotates at high speed in the flow chamber 321a under the drive of the rotating shaft 324, transferring mechanical energy to the liquid and thereby increasing the pressure of the liquid.

[0032] The filling tank 310 is used to store curing liquid (such as water or curing agent solution). The outlet of the filling tank 310 is connected to the inlet 321b of the high-pressure water pump 320 via a pipeline. In practical applications, the outlet of the filling tank 310 should be higher than the inlet 321b of the high-pressure water pump 320. Utilizing the gravitational potential energy of the liquid, it can be ensured that the liquid can naturally flow into and fill the flow chamber 321a and suction pipeline of the high-pressure water pump 320 before the pump is started. This design eliminates the "priming" operation (i.e., manually filling the pump chamber with liquid to remove air) that must be performed before starting a traditional centrifugal pump, simplifying the start-up process and improving operating efficiency. At the same time, the pre-filled liquid and the subsequently established water pressure can effectively squeeze and dissolve any residual gas that may be present.

[0033] Furthermore, to further increase the pressure and stabilize the flow at the outlet, the pressurizing pump component 300 also includes a tapered sleeve 340. This tapered sleeve 340 is fixedly connected (e.g., by a threaded connection or flange connection) to the outlet 321c of the outer casing 321. The flow channel cross-section of the tapered sleeve 340 gradually narrows along the flow direction. According to Bernoulli's principle, this allows for secondary pressurization of the flowing liquid, while its tapered, streamlined inner wall also helps to streamline the flow, further suppressing turbulence and bubble generation.

[0034] To accommodate the positional changes of the rotating nozzle assembly 200 during lifting and rotation, the pressurizing pump component 300 further includes a flexible telescopic water pipe 350 and a water pipe universal joint 360. One end (pump end) of the flexible telescopic water pipe 350 is connected to the output end of the tapered sleeve 340, and the other end (nozzle end) is connected to the upper inlet of the rotating pipe 220 via the water pipe universal joint 360. The flexible telescopic water pipe 350 can extend and retract with the lifting and lowering of the sliding seat 210, while the water pipe universal joint 360 allows the rotating pipe 220 to rotate freely during spraying without affecting the pipeline connection, ensuring the flexibility and reliability of power transmission.

[0035] Regarding the overall layout and movement: To enhance the mobility of the device and facilitate its transfer between different pile hole locations, the grouting device in this embodiment also includes a main frame 400 and multiple push wheels 410. Four push wheels 410 are provided, preferably omnidirectional wheels with brakes, and are respectively installed at the four corners of the bottom of the main frame 400. The pressurized pump component 300 (including a liquid tank 310, a high-pressure water pump 320, and a drive unit 330) is fixedly installed on the main frame 400 as an integrated unit. By pushing the main frame 400, the core pumping equipment can be easily moved to the required working location.

[0036] Brief description of the work process: In use, first fix the outer fixing bracket 110 of the fixing component 100 to the pile hole opening, so that the sliding rod of the inner lifting component 120 extends into the hole. Push the pressurizing pump component 300 installed on the main frame 400 to a suitable nearby position. Connect the liquid tank 310 to the water source, and connect the elastic telescopic water pipe 350 to the rotating pipe 220 through the water pipe universal joint 360.

[0037] The drive unit 330 is started, which drives the high-pressure water pump 320 to work. Since the liquid level in the filling tank 310 is higher than that in the pump inlet, the flow chamber 321a is already filled with liquid before startup, and the drive impeller 322 quickly builds up water pressure. The high-pressure water flows through the conical sleeve 340 for pressurization, the elastic telescopic water pipe 350, and finally reaches the rotating pipe 220.

[0038] The operator can manually or through a simple mechanism adjust the height of the sliding seat 210 on the inner lifting component 120, thereby lowering the entire rotating nozzle assembly 200 to the target depth within the pile hole. Under water pressure, water is sprayed from the nozzle 230 and / or the rotating inner nozzle 240. The reaction force of the sprayed water will drive the rotating pipe 220 and / or the rotating inner nozzle 240 to rotate, achieving uniform spraying and curing of the inner wall of the pile hole with 360-degree coverage.

[0039] Throughout the process, the streamlined flow chamber 321a and tapered sleeve 340 of the high-pressure water pump 320 effectively suppress cavitation; the pump-free design simplifies operation; the modular pump components and movable main frame improve the efficiency of equipment deployment and relocation; and the robust fixed components and flexible rotating nozzles ensure the reliability and effectiveness of the spraying operation.

[0040] In summary, this civil engineering maintenance and construction pouring device is not only reasonably designed and easy to operate, but also effectively realizes maintenance pouring, inhibits cavitation, and improves overall operating efficiency and equipment reliability. Therefore, this device is suitable for industry promotion.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0042] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to 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 therein. Such 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, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A civil engineering curing and pouring device, characterized in that, include: The fixing assembly includes an outer fixing frame and an inner lifting component; The outer fixing frame is fixedly installed outside the pile hole; one end of the inner lifting component is detachably installed on the outer fixing frame, and the other end of the inner lifting component extends into the pile hole; A rotating nozzle assembly is located within the inner lifting component of the fixed assembly. The rotating nozzle assembly includes a nozzle, a rotating tube, and a sliding seat. The sliding seat is slidably mounted on the inner lifting component. One end of the rotating tube is rotatably mounted on the sliding seat and communicates with an external liquid source. The nozzle is located at the other end of the rotating tube. The rotating tube is located at the center of the nozzle; the two ends are arranged opposite to each other. and A pressurizing pump component is provided, which is connected to the rotating nozzle assembly. The pressurizing pump component includes a liquid filling tank, a high-pressure water pump, and a drive unit. The rotating shaft of the drive unit is connected to the high-pressure water pump. The inlet of the high-pressure water pump is connected to the liquid filling tank. The outlet of the high-pressure water pump is connected to the rotating pipe. The high-pressure water pump includes a housing, a drive impeller, and a rotating shaft; the housing is provided with a flow cavity, and an inlet is provided at the top of the flow cavity, and an outlet is provided on one outer side of the bottom; a rotating cavity is provided on the other outer side of the bottom; wherein the inner cavity of the flow cavity has a streamlined surface. The two ends of the rotating shaft pass through the rotating cavity, and the two ends extend into the flow cavity and the outer shell, respectively; The drive impeller is rotatably mounted inside the flow cavity and is fixedly connected to one end of the rotating shaft; the other end of the rotating shaft is connected to the drive host for transmission.

2. The civil engineering maintenance and pouring device according to claim 1, characterized in that, It also includes a main frame and push wheels; there are four push wheels, which are respectively installed on the four sides of the main frame; the pressurizing pump is installed on the main frame.

3. The civil engineering maintenance and construction pouring device according to claim 1, characterized in that, The fixing assembly also includes a bottom support plate, and the inner lifting component is provided with no less than two sliding rods. One end of the sliding rod is fixedly installed on the bottom support plate, and the other end of the sliding rod is fixedly installed on the outer fixing frame.

4. The civil engineering maintenance and construction pouring device according to claim 1, characterized in that, The rotary nozzle assembly also includes a rotary inner nozzle; the rotary inner nozzle is rotatably mounted on the nozzle.

5. The civil engineering maintenance and construction pouring device according to claim 4, characterized in that, The pressurized pump component also includes a tapered sleeve, which is fixedly installed at the outlet of the outer casing.

6. The civil engineering maintenance and construction pouring device according to claim 5, characterized in that, The pressurizing pump also includes an elastic telescopic water pipe and a water pipe universal joint. One end of the elastic telescopic water pipe is connected to the tapered sleeve, and the other end of the elastic telescopic water pipe is connected to the rotating pipe through the water pipe universal joint.

7. The civil engineering maintenance and pouring device according to claim 1, characterized in that, The high-pressure water pump is also equipped with a sealing ring. The sealing ring is provided in two places and is installed on the rotating shaft and is sealed to the rotating cavity.

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