Concrete structure conical hole plugging construction device and construction method

Abstract

The present application relates to the technical fields of nuclear power building hole sealing, in particular to a kind of concrete structure conical hole sealing construction device and construction method, comprising: connecting rod, tamping plate, chuck and scraper, connecting rod is solid cylindrical straight rod, one end of connecting rod is fixedly connected with tamping plate, the other end is symmetrically fixedly connected with two chucks, one end of scraper or sponge strip is detachably fixedly installed between two chucks;When one end of scraper is fixedly installed between two chucks, the leveling end of scraper is perpendicular to the axis of connecting rod;Tamping plate can be completely inserted into conical hole and tamping sealing material filled in its interior;The leveling end of pressing plate can be inserted into conical hole and carry out scraping and leveling operation to sealing material filled in its interior, the present application provides a kind of concrete structure conical hole sealing construction device and construction method capable of improving construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of sealing technology for holes in nuclear power plant buildings, and in particular to a construction device and method for sealing conical holes in concrete structures. Background Technology

[0002] In nuclear power plant construction projects, according to the design drawings, the wall thickness is relatively large. During the wall formwork erection process, to ensure the safety of concrete pouring, the formwork tie rods are appropriately densified on site. The formwork tie rods consist of an inner tie rod, two pre-embedded cones threaded to both ends of the inner tie rod, two outer tie rods connected to the outside of the two conical sleeves, and a system of two three-pronged nuts fitted and threaded to the outside of the two outer tie rods. Both the inner and outer tie rods are high-strength tie rods. The inner tie rod and the two conical sleeves are pre-embedded in the wall. After the concrete poured into the wall reaches a certain strength, the formwork and the two conical sleeves, two outer tie rods, and two three-pronged nuts in the formwork tie rods need to be removed, leaving the inner tie rod inside the concrete wall. This will create conical holes in the concrete wall where the previously embedded conical sleeves were. To prevent the inner tie rods from corroding and affecting the waterproofing of the wall, the formed conical holes need to be sealed and leveled. However, traditional sealing methods require the use of different tools to seal and level the conical holes, which is a complicated process and affects construction efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a construction device and method for sealing conical holes in concrete structures, so as to solve the technical problems existing in the background art.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A construction device for sealing conical holes in concrete structures includes: a connecting rod, a tamping plate, clamps, and a scraper. The connecting rod is a solid cylindrical straight rod. One end of the connecting rod is fixedly connected to the tamping plate, and the other end is symmetrically fixedly connected to two clamps. One end of the scraper or a sponge strip is detachably fixed between the two clamps. When one end of the scraper is fixedly installed between the two clamps, the leveling end of the scraper is perpendicular to the axis of the connecting rod. The tamping plate can fully extend into the conical hole and tampe the sealing material inside. The leveling end of the tamping plate can extend into the conical hole and scrape and level the sealing material inside.

[0005] Furthermore, the tamping plate is a circular steel plate, and the tamping plate is coaxially and fixedly connected to one end of the connecting rod.

[0006] Furthermore, the outer surface of the clamp is arc-shaped and aligned with the arc surface of the connecting rod; a pressure groove is formed at one end of the two clamps facing each other, and one end of the scraper or the sponge strip can be inserted into the pressure groove.

[0007] Furthermore, it also includes: bolts and nuts, each with two positions; two connecting holes spaced apart on the chuck, and two mounting holes at one end of the scraper, with the two mounting holes corresponding one-to-one with the two connecting holes on the chuck; the threaded parts of the two bolts respectively pass through the two connecting holes on one chuck, through the two mounting holes on the scraper, and finally through the two connecting holes on the other chuck, and the two nuts are threadedly connected to the threaded parts of the two bolts on the outside of the other chuck.

[0008] Furthermore, a handle is fixedly connected to the middle of the connecting rod.

[0009] Furthermore, the handle includes a cylindrical sleeve and a sealing plate. The cylindrical sleeve is fitted onto the middle of the connecting rod. The sealing plate is annular and there are two of them. The two sealing plates are symmetrically fixed at both ends of the cylindrical sleeve and respectively fitted onto both sides of the outer wall of the connecting rod. The outer wall of the cylindrical sleeve is provided with anti-slip texture.

[0010] Furthermore, the two sealing plates are fixed to the axial ends of the cylindrical sleeve by welding, and the two sealing plates are also fixed to the outer wall of the connecting rod by welding.

[0011] Furthermore, the connecting rod has scale lines on the side near the tamping plate.

[0012] A method for sealing conical holes in concrete structures, utilizing the sealing device for conical holes in concrete structures as described in claim 8, is characterized by comprising the following steps: Step 1: Clean the slurry, dust, and pine resin around the conical hole; Step 2: Secure the sponge strip between the two clamps, wet the sponge strip with adhesive-mixed cement slurry, and then evenly apply the adhesive-mixed cement slurry to the inner wall of the conical hole through the sponge strip. When the adhesive-mixed cement slurry forms a film, proceed to the next step. Step 3: Remove the sponge strips from the two clamps and replace them with scrapers; scrape the first layer of sealing material with the scraper and send it into the conical hole, then compact the first layer of sealing material with the tamping plate; after the first layer of sealing material has solidified, scrape the second layer of sealing material with the scraper and send it into the conical hole, then compact the second layer of sealing material with the tamping plate. Step 4: After the second layer of sealing material has been compacted, use the scraper's flattening end to scrape off the excess second layer of sealing material that has overflowed from the conical hole and remove it, completing the finishing work on the outer end face of the conical hole; Step 5: After the conical hole is sealed, the sealed area is cured to ensure that the strength of the sealing material meets the design requirements; at the same time, the sealed area is inspected to ensure that there is no leakage.

[0013] Furthermore, the sealing material is waterproof mortar.

[0014] Compared with the prior art, the beneficial effects of the present invention are: I. This invention integrates the tamping plate and scraper onto the connecting rod, allowing construction workers to easily complete both sealing and leveling operations without frequently changing tools, thereby greatly saving construction time and improving construction efficiency.

[0015] Second, this invention, through layered sealing and precise leveling steps, ensures the full filling and compaction of the sealing material, as well as the flatness and smoothness of the base surface, effectively avoiding quality problems such as leakage.

[0016] Third, the concrete structure conical hole sealing construction device provided by the present invention has a compact structure and is easy to operate. It can flexibly adapt to the rapid repair construction of various holes and base surface defects, which not only reduces the labor intensity of construction personnel, but also effectively reduces construction costs.

[0017] Fourth, the concrete structure conical hole sealing construction device provided by the present invention has been rationally designed to reduce weight, facilitate single-handed operation, and improve construction safety. At the same time, the selection and treatment of sealing materials have fully considered environmental protection requirements and are in line with the green development trend of modern building construction.

[0018] V. The concrete structure conical hole sealing construction device provided by this invention integrates the two major functions of sealing and leveling, simplifying the construction steps and effectively shortening the construction cycle. Simultaneously, the precise design of the tamping plate and scraper ensures the stability and consistency of construction quality, reducing rework and repair costs caused by improper construction. Furthermore, the operability and ease of use of the device are significantly improved, enabling construction personnel to complete construction tasks more quickly and accurately, thereby improving overall construction efficiency and quality. Attached Figure Description

[0019] Figure 1 This is a top view of a construction device for sealing conical holes in concrete structures provided by the present invention; Figure 2 This is a front view of a construction device for sealing conical holes in concrete structures provided by the present invention; Figure 3 This is a schematic diagram illustrating the use of the scraper in this invention; Figure 4 This is a schematic diagram illustrating the use of the tamping board in this invention.

[0020] The labels in the attached diagram are: 1-connecting rod, 2-tamping plate, 3-clamp, 4-connecting hole, 5-handle, 6-sealing plate, 7-scale line. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1-4 As shown, a construction device for sealing conical holes in concrete structures includes: a connecting rod 1, a tamping plate 2, clamps 3, and a scraper. The connecting rod 1 is a solid cylindrical straight rod. One end of the connecting rod 1 is fixedly connected to the tamping plate 2, and the other end is symmetrically fixedly connected to two clamps 3. One end of the scraper or a sponge strip is detachably fixed between the two clamps 3. When one end of the scraper is fixedly installed between the two clamps 3, the leveling end of the scraper is perpendicular to the axis of the connecting rod 1. The scraper is made of plastic. The tamping plate 2 can fully extend into the conical hole and tampe the sealing material inside. The tamping plate 2 can meet the tamping requirements of the sealing material in the 2 / 3 diameter variation area inside the conical hole and ensure the flatness of the inner surface of the conical hole. The leveling end of the tamping plate can extend into the conical hole and scrape and level the waterproof mortar inside.

[0023] In this embodiment, the tamping plate 2 is a circular steel plate, and the tamping plate 2 is coaxially fixedly connected to one end of the connecting rod 1.

[0024] In this embodiment, the outer surface of the clamp 3 is arc-shaped and aligned with the arc surface of the connecting rod 1; a pressure groove is formed at one end of the two clamps 3 facing each other, and one end of the scraper or the sponge strip can be inserted into the pressure groove.

[0025] In this embodiment, the concrete structure conical hole sealing construction device further includes: bolts and nuts, with two bolts and nuts in each position; two connecting holes 4 are spaced apart on the clamp 3, and two mounting holes are provided at one end of the scraper, with the two mounting holes corresponding one-to-one with the two connecting holes 4 on the clamp 3; the threaded parts of the two bolts are respectively movably passed through the two mounting holes 4 on one of the clamps 3 through the two mounting holes on the scraper and finally through the two connecting holes 4 on the other clamp 3; the two nuts are respectively threaded to the threaded parts of the two bolts on the outside of the other clamp 3; when installing the scraper, the scraper can be firmly installed on the two clamps 3 by the two bolts and two nuts; when installing the sponge strip, it is only necessary to clamp the sponge strip in the groove between the two clamps 3; the scraper can complete the final finishing work, and at the same time has the function of removing wall particles and sponge strips clamped on the clamps 3 (the plastic does not damage the surface of the clamps 3).

[0026] In this embodiment, a handle is fixedly connected to the middle of the connecting rod 1. The handle includes a cylindrical sleeve 5 and a sealing plate 6. The cylindrical sleeve 5 is fitted onto the middle of the connecting rod 1. The sealing plate 6 is annular and there are two of them. The two sealing plates 6 are symmetrically fixed at both ends of the cylindrical sleeve 5 and respectively fitted and fixed on both sides of the outer wall of the connecting rod 1. The outer wall of the cylindrical sleeve 5 is provided with anti-slip texture. The handle makes it convenient for construction personnel to hold the entire device to perform sealing operations on conical holes.

[0027] In this embodiment, the two sealing plates 6 are fixed to the axial ends of the cylindrical sleeve 5 by welding, and the two sealing plates 6 are fixed to the outer wall of the connecting rod 1 by welding.

[0028] In this embodiment, a scale line 7 is provided on the side of the connecting rod 1 near the tamping plate 2; the scale line 7 serves as the construction boundary for the two sealing operations.

[0029] A method for sealing conical holes in concrete structures includes the following steps: Step 1: After the wall structure is completed, the formwork reinforcement holes (conical holes) on the wall surface need to be sealed; clean the grout, dust, pine resin, etc. around the conical holes to ensure that there is no grease, grout particles, or dust inside the holes; only when the inside of the holes is clean and free of impurities can a good foundation be laid for the subsequent sealing work. Step Two: After the surface of the wall template reinforcement holes (conical holes) is clean and free of water, clamp the sponge strip between the two clamps 3. Wet the sponge strip with adhesive-mixed cement slurry, and then evenly apply the adhesive-mixed cement slurry to the inner wall of the conical hole through the sponge strip. When the adhesive-mixed cement slurry forms a film, proceed to Step Three. The purpose of this step is to enhance the adhesion between the sealing material (waterproof mortar) and the conical hole, ensuring that the sealing material (waterproof mortar) can tightly adhere to the hole wall and prevent leakage. Step 3: Seal the conical holes in layers according to their depth and gaps. Specifically: Remove the sponge strips from the two clamps 3 and replace them with scrapers; scrape the first layer of waterproof mortar with the scraper and send it into the conical hole; compact the first layer of waterproof mortar with the tamping plate 2 to ensure that the sealing material in the depth and gaps of the conical hole is filled tightly; after the first layer of waterproof mortar has solidified, scrape the second layer of waterproof mortar with the scraper and send it into the conical hole; compact the second layer of waterproof mortar with the tamping plate 2 to ensure that the sealing material in the depth and gaps of the conical hole is filled tightly, avoiding quality problems caused by incomplete sealing. Step 4: After the second layer of waterproof mortar has been compacted, use the scraper's flattening end to scrape off any excess second layer of waterproof mortar that has overflowed into the conical hole and remove it, completing the finishing work on the outer end face of the conical hole. The purpose of this step is to ensure that the sealed surface is flat and smooth, achieving both aesthetic and practical effects. During the finishing process, the construction personnel need to pay attention to the pressure applied to avoid damaging the sealing material (waterproof mortar). Step 5: After the conical hole is sealed, the sealed area is cured to ensure that the strength of the waterproof mortar meets the design requirements; at the same time, the sealed area is inspected to ensure that there is no leakage; if any leakage or other quality problems are found, they must be repaired in time.

[0030] Through actual construction verification, this device can significantly improve the efficiency and quality of sealing conical holes and leveling walls, making it suitable for sealing conical holes in concrete structures at nuclear power plant sites and suitable for widespread application. The design of the tamping plate 2 ensures uniform filling and compaction of the sealing material, effectively avoiding the problems of voids and unevenness inside the conical holes. The use of the scraper further improves the flatness of the wall surface, providing a good foundation for subsequent decoration work. At the same time, the dual-head design of the device realizes integrated construction of sealing and leveling, simplifying the construction process and reducing construction costs.

[0031] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A construction device for sealing conical holes in concrete structures, characterized in that, include: The connecting rod (1), tamping plate (2), clamps (3), and scraper are provided. The connecting rod (1) is a solid cylindrical straight rod. One end of the connecting rod (1) is fixedly connected to the tamping plate (2), and the other end is symmetrically fixedly connected to two clamps (3). One end of the scraper or a sponge strip is detachably fixed between the two clamps (3). When one end of the scraper is fixedly installed between the two clamps (3), the leveling end of the scraper is perpendicular to the axis of the connecting rod (1). The tamping plate (2) can fully extend into the conical hole and tampe the sealing material inside it. The leveling end of the pressure plate can extend into the conical hole and scrape and level the sealing material inside it.

2. The construction device for sealing conical holes in concrete structures according to claim 1, characterized in that: The tamping plate (2) is a circular steel plate, and the tamping plate (2) is coaxially fixedly connected to one end of the connecting rod (1).

3. The construction device for sealing conical holes in concrete structures according to claim 1, characterized in that: The outer side of the clamp (3) is arc-shaped and aligned with the arc surface of the connecting rod (1); a pressure groove is formed at one end of the two clamps (3) facing each other, and one end of the scraper or the sponge strip can be inserted into the pressure groove.

4. The construction device for sealing conical holes in concrete structures according to claim 3, characterized in that: Also includes: Bolts and nuts, each with two positions; two connecting holes (4) are provided on the chuck (3) at intervals; two mounting holes are provided at one end of the scraper, and the two mounting holes are set one-to-one with the two connecting holes (4) on the chuck (3); the threaded parts of the two bolts are respectively moved through the two mounting holes (4) on one of the chucks (3) and finally through the two connecting holes (4) on the other chuck (3); the two nuts are respectively threaded to the threaded parts of the two bolts on the outside of the other chuck (3).

5. The construction device for sealing conical holes in concrete structures according to claim 1, characterized in that: A handle is fixedly connected to the middle of the connecting rod (1).

6. The construction device for sealing conical holes in concrete structures according to claim 5, characterized in that: The handle includes a cylindrical sleeve (5) and a sealing plate (6). The cylindrical sleeve (5) is fitted onto the middle part of the connecting rod (1). The sealing plate (6) is annular and there are two of them. The two sealing plates (6) are symmetrically fixed at both ends of the axial direction of the cylindrical sleeve (5). The two sealing plates (6) are respectively fitted onto both sides of the outer wall of the connecting rod (1). The outer wall of the cylindrical sleeve (5) is provided with anti-slip texture.

7. The construction device for sealing conical holes in concrete structures according to claim 6, characterized in that: The two sealing plates (6) are fixed to the axial ends of the cylindrical sleeve (5) by welding, and the two sealing plates (6) are fixed to the outer wall of the connecting rod (1) by welding.

8. The construction device for sealing conical holes in concrete structures according to claim 1, characterized in that: The connecting rod (1) has a scale line (7) on the side near the tamping plate (2).

9. A method for sealing conical holes in concrete structures, utilizing the sealing device for conical holes in concrete structures as described in claim 8, characterized in that: Includes the following steps: Step 1: Clean the slurry, dust, and pine resin around the conical hole; Step 2: Clamp and fix the sponge strip between the two clamps (3), wet the sponge strip with the cement slurry mixed with adhesive, and then evenly brush the cement slurry mixed with adhesive onto the inner wall of the conical hole through the sponge strip. When the cement slurry mixed with adhesive forms a film, proceed to the next step. Step 3: Remove the sponge strips from the two clamps (3) and replace them with scrapers; scrape the first layer of sealing material with the scraper and send it into the conical hole, and compact the first layer of sealing material with the tamping plate (2); after the first layer of sealing material has solidified, scrape the second layer of sealing material with the scraper and send it into the conical hole, and compact the second layer of sealing material with the tamping plate (2); Step 4: After the second layer of sealing material has been compacted, use the scraper's flattening end to scrape off the excess second layer of sealing material that has overflowed from the conical hole and remove it, completing the finishing work on the outer end face of the conical hole; Step 5: After the conical hole is sealed, the sealed area is cured to ensure that the strength of the sealing material meets the design requirements; at the same time, the sealed area is inspected to ensure that there is no leakage.

10. A method for sealing conical holes in concrete structures according to claim 9, characterized in that: The sealing material is waterproof mortar.

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