A device for plugging and forming holes of a tension bolt
Patent Information
- Application Number
- CN202522077185.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0014]根据本实用新型提供的一种对拉螺栓孔封堵装置，通过将筒体同轴插入混凝土墙体上留下的对拉螺栓孔内部，并且尾部以及第二凸缘露出于对拉螺栓孔之外，方便于使用铆接枪抵住第二凸缘，并拉拔尾部，使得位于对拉螺栓孔内部的楔头和主体部被带动着沿自身轴向朝向筒体内部移动，使筒体被撑开，直至楔头与第一凸缘的内孔相抵触，楔头移动受限，此时筒体在第一凸缘和支座之间发生轴向压缩，因此，通过拉动尾部能够使筒体撑开或轴向压缩，来使得整个对拉螺栓孔封堵装置的横截面面积增大，不仅操作便捷，还利于提高包套与对拉螺栓孔的接触紧密程度，增强封堵效果，同时利于减小风载荷反复作用、干湿循环、冻融循环等因素对封堵效果带来的不利影响，降低后期墙体漏水概率。根据本实用新型提供的一种对拉螺栓孔成孔装置，在混凝土墙体浇筑过程中，通过设置第一管体和第二管体分别穿过两侧模板，并且第一管体和第二管体通过承插连接实现同轴相连，对拉螺栓能够穿过第一通孔和第二通孔来固定两侧的模板，当墙体完成后拆除模板以及对拉螺栓的过程中，通过分别从墙体两侧施加外力使第一管体和第二管体的承插连接被拉开，并进一步将第一管体和第二管体从墙体上拔除，混凝土墙体上所留下的对拉螺栓孔的截面形状及尺寸与第一管体和第二管体的截面形状及尺寸一致，有利于调节对拉螺栓孔的成孔形状及尺寸，帮助避免后期封堵过程中的机械扩孔以及破坏原有结构、耗费人力的问题，且将对拉螺栓置于第一管体和第二管体中，减小对拉螺栓粘连于墙体的情况，方便于对拉螺栓的拆卸。因此，本实用新型所提供的对拉螺栓孔封堵及成孔装置具备施工便捷、密封效果好、耐久性好的优点。
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Figure CN224664221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproof sealing technology, and in particular to a device for sealing and drilling tie bolt holes. Background Technology
[0002] During the concrete wall pouring process, to prevent the formwork from deforming due to fluid lateral pressure, construction workers use tie bolts to secure it. After the tie bolts are removed, numerous horizontal and vertical cylindrical through holes are left on the wall surface. Taking a typical high-rise residential building as an example, the building area of the exterior wall of a standard floor is approximately 500 square meters. 2 The number of tie bolt holes can reach 600-1200, averaging 1-2 holes / m. 2 If these holes are not sealed promptly and reliably, they will become the main channels for water leakage from the exterior walls. Related techniques involve first injecting ordinary cement mortar into the tie bolt holes, then applying a layer of JS waterproof coating to the outer surface; alternatively, the outer holes can be mechanically enlarged first, then filled with polyurethane foam material, and finally coated with JS waterproof coating.
[0003] On the one hand, ordinary cement mortar and polyurethane foam materials used in related technologies are prone to cracking after repeated wind loads, wet-dry cycles, and freeze-thaw cycles, leading to subsequent water leakage. On the other hand, the sealing process not only requires mechanical hole enlargement, which damages the original structure and consumes manpower, but also requires multiple construction steps, making the process complex and time-consuming. Utility Model Content
[0004] To address at least one of the aforementioned and other technical problems in the prior art, embodiments of this utility model provide a bolt hole sealing device, comprising a cylindrical body, a sleeve and a support, a first flange and a second flange, and a tie rod. The cylindrical body has a cylindrical structure open at both ends. The sleeve and the support are both fitted onto the cylindrical body. The first flange and the second flange both protrude radially from the cylindrical body. The tie rod includes an integrally formed and coaxially arranged wedge head, a main body, and a tail. The main body is located inside the cylindrical body and is coaxial with the cylindrical body, while the wedge head and the tail are located at opposite ends of the cylindrical body. The second flange is located between the main body and the tail, and the first flange is located between the wedge head and the second flange. The maximum outer diameter of the wedge head perpendicular to its own axial direction is greater than the inner diameter of the cylindrical body and greater than the diameter of the inner hole of the first flange. The support is located between the second flange and the sleeve.
[0005] The sheath is a cylindrical structure closed at one end, coaxially arranged with the cylinder body, and the cylinder body, the first flange and the wedge are all located inside the sheath.
[0006] The support is coaxially sleeved on the cylinder, and the diameter of the inner hole of the support is smaller than the outer diameter of the second flange.
[0007] The support is also fixed with ribs that are spaced apart along its circumference. The ribs are located on the side of the support that is close to the second flange.
[0008] Grooves are formed on the outer surface of the cylinder. The grooves are spaced apart along the axial direction of the cylinder and are evenly distributed along the circumferential direction of the cylinder.
[0009] The two ends of the wedge are two parallel circular end faces, with the smaller circular end face fixed to the end of the main body.
[0010] An embodiment of this utility model also provides a tie bolt hole forming device for forming tie bolt holes sealed by a tie bolt hole sealing device, comprising a first tube and a second tube. The first tube has a first through hole coaxially formed along its own axial direction. The second tube has a second through hole coaxially formed along its own axial direction. One end of the second tube is configured as an insertion part, the outer diameter of which forms an interference fit with the diameter of the first through hole. One end of the first tube serves as a support part, and the insertion part is connected to the first tube. The first tube and the second tube are coaxially connected, and the first through hole and the second through hole are also coaxially connected, allowing the tie bolt to pass through the first through hole and the second through hole along its extension direction.
[0011] The tie bolt hole forming device also includes a first end tube and a second end tube. The first end tube is coaxially disposed at the other end of the first tube body, and the outer diameter of the end face of the first end tube that is away from the first tube body is set to be larger than the outer diameter of the first tube body. The second end tube is coaxially disposed at the other end of the second tube body, and the outer diameter of the end face of the second end tube that is away from the second tube body is set to be larger than the outer diameter of the second tube body.
[0012] The tie bolt hole forming device also includes a first thread and a second thread. The first thread is coaxially disposed on the inner wall of the first tube body, located between the first end tube and the bearing, and close to the first end tube. The second thread is coaxially disposed on the inner wall of the second tube body, located between the second end tube and the insert, and close to the second end tube.
[0013] Both the first end tube and the second end tube are hollow structures. The minimum inner diameter of the first end tube along its own axis is greater than or equal to the diameter of the first through hole, and the minimum inner diameter of the second end tube along its own axis is greater than or equal to the diameter of the second through hole.
[0014] According to the present invention, a tie bolt hole sealing device is provided. By coaxially inserting the cylinder into the tie bolt hole left in the concrete wall, with the tail and the second flange protruding outside the tie bolt hole, it is convenient to use a riveting gun to hold the second flange and pull the tail. This causes the wedge and the main body located inside the tie bolt hole to be driven to move axially toward the inside of the cylinder, thus expanding the cylinder until the wedge contacts the inner hole of the first flange. The movement of the wedge is restricted, and at this time, the cylinder is axially compressed between the first flange and the support. Therefore, by pulling the tail, the cylinder can be expanded or axially compressed, thereby increasing the cross-sectional area of the entire tie bolt hole sealing device. This not only makes the operation convenient but also helps to improve the tightness of the contact between the sleeve and the tie bolt hole, enhancing the sealing effect. At the same time, it helps to reduce the adverse effects of repeated wind loads, wet-dry cycles, freeze-thaw cycles, and other factors on the sealing effect, reducing the probability of water leakage in the wall later. According to the tie bolt hole forming device provided by this utility model, during the concrete wall pouring process, a first pipe and a second pipe are respectively installed to pass through the templates on both sides, and the first and second pipes are coaxially connected by a socket connection. The tie bolts can pass through the first and second through holes to fix the templates on both sides. When the wall is completed and the templates and tie bolts are removed, external force is applied from both sides of the wall to pull apart the socket connection of the first and second pipes, and then the first and second pipes are pulled out of the wall. The cross-sectional shape and size of the tie bolt hole left on the concrete wall are consistent with the cross-sectional shape and size of the first and second pipes, which is conducive to adjusting the hole shape and size of the tie bolt hole, and helps to avoid the problems of mechanical hole enlargement, damage to the original structure, and labor consumption during the later sealing process. Moreover, placing the tie bolt in the first and second pipes reduces the possibility of the tie bolt sticking to the wall, and facilitates the disassembly of the tie bolt. Therefore, the tie bolt hole sealing and forming device provided by this utility model has the advantages of convenient construction, good sealing effect, and good durability. Attached Figure Description
[0015] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
[0016] Figure 1 A schematic front view of a tie bolt hole sealing device according to an embodiment of the present invention is shown;
[0017] Figure 2 A partial cross-sectional view of a tie bolt hole sealing device according to an embodiment of the present invention is shown schematically;
[0018] Figure 3 A bottom view schematically illustrates a tie bolt hole sealing device according to an embodiment of the present invention;
[0019] Figure 4 A schematic cross-sectional view of the first tube body according to an embodiment of the present invention is shown;
[0020] Figure 5 A schematic cross-sectional view of the second tube body according to an embodiment of the present invention is shown.
[0021] In the accompanying drawings, the meanings of the reference numerals are as follows:
[0022] 1-Sheath; 2-Support; 3-Cylinder; 4-Groove; 5-First flange; 6-Wedge; 7-Second flange; 8-Tail; 9-First tube body; 10-First thread; 11-Support; 12-First end tube; 13-Insertion; 14-Second tube body; 15-Second thread; 16-Second end tube. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0024] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0025] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0026] When using expressions such as "at least one of A, B, and C," the expression should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or systems having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the expression should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or systems having A, B, and C.
[0027] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.
[0028] Figure 1 The diagram schematically shows a front view of a tie bolt hole sealing device according to an embodiment of the present invention. Figure 2 A partial cross-sectional view of a tie bolt hole sealing device according to an embodiment of the present invention is shown schematically. Figure 3 A bottom view schematically illustrates a tie bolt hole sealing device according to an embodiment of the present invention.
[0029] like Figures 1-3 As shown, an embodiment of this utility model provides a bolt hole sealing device, including a cylindrical body 3, a sleeve 1, a support 2, a first flange 5, a second flange 7, and a tie rod. The cylindrical body 3 has a cylindrical structure with openings at both ends. The sleeve 1 and the support 2 are both fitted onto the cylindrical body 3. The first flange 5 and the second flange 7 both protrude radially from the cylindrical body 3. The tie rod includes an integrally formed and coaxially arranged wedge head 6, a main body, and a tail 8. The main body is located inside the cylindrical body 3 and is coaxial with the cylindrical body 3. The wedge head 6 and the tail 8 are located at opposite ends of the cylindrical body 3. The second flange 7 is located between the main body and the tail 8, and the first flange 5 is located between the wedge head 6 and the second flange 7. The maximum outer diameter of the wedge head 6 perpendicular to its own axial direction is greater than the inner diameter of the cylindrical body 3 and greater than the diameter of the inner hole of the first flange 5. The support 2 is located between the second flange 7 and the sleeve 1.
[0030] Specifically, the cylinder 3 includes, but is not limited to, a hollow cylinder. The inner hole of the cylinder 3 is also cylindrical and coaxial with the cylinder 3. The first flange 5 and the second flange 7 include, but are not limited to, flat plates with a circular cross-section and a hollow interior. The outer diameters of the first flange 5 and the second flange 7 are both larger than the outer diameter of the cylinder 3. The inner hole shapes of the first flange 5 and the second flange 7 are also both circular cross-sections. The first flange 5 and the cylinder 3 are an integral structure (formed by welding or gluing), and the inner diameter of the first flange 5 is equal to the outer diameter of the cylinder 3.
[0031] The inner hole of the cylinder 3 extends through the cylinder 3 along its own axis, making the cylinder 3 open at both ends. Therefore, the tie rod can pass through the inner hole of the cylinder 3 along its own extension direction, so that the wedge head 6 and the tail 8 are located at the two ends of the cylinder 3 respectively. In addition, the material of the cylinder 3 is set according to the usage scenario. For example, in non-corrosive environments such as interior walls of ordinary civil buildings, it may include, but is not limited to, cold-rolled steel plate; in humid / slightly corrosive environments such as exterior walls and basements, it may include, but is not limited to, 304 stainless steel; in highly corrosive environments such as chemical plants, it may include, but is not limited to, glass fiber reinforced plastic; in non-load-bearing scenarios such as lightweight partition walls, it may include, but is not limited to, rigid PVC-U. Among them, for the metal cylinder 3, the outer surface is hot-dip galvanized or powder coated to further improve the corrosion resistance.
[0032] In this embodiment, the tie bolt hole sealing device provided by this utility model involves coaxially inserting the cylinder 3 into the tie bolt hole left in the concrete wall, with the tail 8 and the second flange 7 protruding outside the tie bolt hole. This facilitates the use of a riveting gun to hold the second flange 7 and pull the tail 8, causing the wedge 6 and the main body located inside the tie bolt hole to move axially toward the inside of the cylinder 3, thus expanding the cylinder 3 until the wedge 6 contacts the inner hole of the first flange 5, restricting the movement of the wedge 6. At this point, the cylinder 3 undergoes axial compression between the first flange 5 and the support 2. Therefore, by pulling the tail 8, the cylinder 3 can be expanded or axially compressed, thereby increasing the cross-sectional area of the entire tie bolt hole sealing device. This not only makes operation convenient but also improves the tightness of contact between the sleeve 1 and the tie bolt hole, enhancing the sealing effect. It also helps to reduce the adverse effects of repeated wind loads, wet-dry cycles, freeze-thaw cycles, and other factors on the sealing effect, reducing the probability of wall leakage in the later stages.
[0033] The sleeve 1 is a cylindrical structure closed at one end, coaxially arranged with the cylinder 3, and the cylinder 3, the first flange 5, and the wedge head 6 are all located inside the sleeve 1. The support 2 is coaxially sleeved on the cylinder 3, and the diameter of the inner hole of the support 2 is smaller than the outer diameter of the second flange 7. The support 2 is also fixed with ribs distributed at intervals along its circumference. The ribs are located on the side of the support 2 closest to the second flange 7.
[0034] Specifically, the wedge 6 and the first flange 5 are both located between the closed end of the sleeve 1 and the second flange 7, and the second flange 7 and the tail 8 are both located outside the sleeve 1 and the cylinder 3. Furthermore, when the tail 8 is pulled, the wedge 6 moves along its own axis into the cylinder 3 and moves toward the direction of approaching the second flange 7, wherein at least a portion of the wedge 6 cannot pass through the inner hole of the first flange 5, that is, at least a portion of the wedge 6 is blocked between the first flange 5 and the closed end of the sleeve 1.
[0035] The support 2 has a hollow structure with a cylindrical inner hole that is coaxial with the cylinder 3. The inner hole of the support 2 extends through the support 2 along its own axial direction, giving the support 2 an open-end structure, allowing it to be fitted onto the cylinder 3. The support 2 may include, but is not limited to, a cylinder formed by rotating a polygon (such as a pentagon or quadrilateral). The two ends of the support 2 abut against the second flange 7 and the sleeve 1, respectively. The end of the sleeve 1 has a groove, and the ends of the support 2 adjacent to the sleeve 1 have a first mating protrusion and a second mating protrusion. Both the first and second mating protrusions extend axially from the support 2. The slot, the first mating protrusion, and the second mating protrusion are, but are not limited to, hollow structures that are coaxial with the support 2 and have a circular cross-section. The inner holes of the slot, the first mating protrusion, and the second mating protrusion are all coaxial with the support 2. The cross-sectional shape and diameter of the inner holes of the slot, the first mating protrusion, and the second mating protrusion are also the same as the cross-sectional shape and diameter of the inner hole of the support 2, so that the inner holes of the slot, the first mating protrusion, and the second mating protrusion are all located in the hollow part of the support 2.
[0036] Furthermore, the shape and size of the first mating protrusion match the shape and size of the slot; the cross-section of the gap formed between the cylinder 3 and the sleeve 1 is annular, and the cross-sectional shape and size of the second mating protrusion match the cross-sectional shape and size of this gap, with the second mating protrusion penetrating into this gap along its own axial direction. The ribs include, but are not limited to, being cuboid structures, protruding from the second flange 7 along its axial direction. The ribs and the support 2 are, but are not limited to, integrally formed. Simultaneously, the second flange 7 and the support 2 are also pre-set with interfaces compatible with standard tools such as riveting guns and torque wrenches.
[0037] Furthermore, the materials of the first flange 5, the second flange 7, the tie rod, the rib plate, and the support 2 are all set to be the same as the material of the cylinder 3. The material of the sleeve 1 includes, but is not limited to, highly weather-resistant elastic rubber, such as silicone rubber in high-temperature conditions, or fluororubber, neoprene rubber, or EPDM rubber. By first assembling the cylinder 3, the first flange 5, the second flange 7, the tie rod, and the base 2, placing them into a sealed mold of a fixed shape, and then injecting the material required to form the sleeve 1 (such as the aforementioned EPDM rubber) into the mold cavity at high temperature, a complete tie bolt hole sealing device is obtained after cooling and demolding, realizing the integral molding of the sleeve 1 and the cylinder 3. Among them, the sleeve 1 not only fits tightly with the cylinder 3, but also abuts tightly against the first flange 5, so that when the tail 8 is pulled, the sleeve 1 can be driven to compress between the first flange 5 and the support 2.
[0038] In this implementation, on the one hand, the second flange 7 and the support 2 are pre-set with interfaces compatible with standard tools such as riveting guns and torque wrenches. When the riveting gun is used to press against the second flange 7, the support 2 generates a supporting force on the sleeve 1. The sleeve 1 can be compressed axially together with the cylinder 3 to increase the cross-sectional area and enhance the sealing effect, thus achieving rapid sealing. At the same time, the tail 8 is cut off from the tie rod with the torque wrench, so that the tie bolt holes on the wall are sealed without generating extra parts that affect the use of the wall, improving the convenience and versatility of construction. Among them, the rib plate is set to enhance the strength, rigidity and stability of the support 2 when the riveting gun is pressed against it. On the other hand, by making the sleeve 1 a material of high weather-resistant rubber and forming it as an integral part with the cylinder 3, the sleeve 1 forms a wrap around the cylinder 3. The elastic seal formed by the sleeve 1 and the mechanical seal formed by the cylinder 3 work together on the hole wall of the tie bolt hole, which not only enhances the sealing effect, but also helps to improve the durability, weather resistance and chemical corrosion resistance of the tie bolt hole sealing device.
[0039] Grooves 4 are formed on the outer surface of the cylinder 3. The grooves 4 are spaced apart along the axial direction of the cylinder 3 and are evenly distributed along the circumferential direction of the cylinder 3.
[0040] Specifically, the grooves 4 include, but are not limited to, 5-15 grooves along the axial direction of the cylinder 3, and the grooves 4 are distributed at equal intervals along the axial direction of the cylinder 3. The grooves 4 include, but are not limited to, 4 grooves along the circumferential direction of the cylinder 3. The length direction of the grooves 4 is perpendicular to the axial direction of the cylinder 3, and the cross-sectional shape of the grooves 4 includes, but is not limited to, a rectangle, wherein the length of the rectangle includes, but is not limited to, 0.4-0.7 times the outer diameter of the cylinder 3, and the length-to-width ratio of the rectangle includes, but is not limited to, 10-30 times.
[0041] In this implementation, by opening grooves 4, when the cylinder 3 is axially compressed, stress concentration is formed at these grooves 4. As a result of the distribution pattern of the grooves 4, the stress concentration area is also uniformly distributed along the circumference of the cylinder 3 and spaced along the axial direction of the cylinder 3. This is conducive to the overall orderly deformation of the cylinder 3, helps to reduce the local displacement or jamming of the tie rod during the pulling process of the tail 8, and enhances the effectiveness of the tie bolt hole sealing device.
[0042] The two ends of the wedge 6 are two parallel circular end faces, with the smaller circular end face being fixed to the end of the main body.
[0043] Specifically, the wedge 6 includes, but is not limited to, a truncated conical structure (i.e., a cone truncated by a plane parallel to its base), with two parallel circular end faces at each end. The diameter of the larger of the two circular end faces is the maximum outer diameter of the wedge 6 along its own axial direction. Furthermore, one end of the wedge 6 is fixedly connected to the main body, and the other end includes, but is not limited to, a hemispherical protrusion. The plane of the protrusion is fitted and fixed to the circular end face of the wedge 6, and the fixing method includes, but is not limited to, integral molding.
[0044] In this embodiment, the wedge head 6 is configured as a truncated conical structure, and the smaller diameter of the two circular surfaces at both ends of the wedge head 6 is fixed to the main body. When the wedge head 6 is pulled by the main body, the wedge head 6 moves along its own axial direction into the cylinder 3. The smaller diameter circular end face can pass through the inner hole of the first flange 5 and continue to move towards the direction close to the second flange 7. The larger diameter circular end face is blocked between the first flange 5 and the closed end of the sleeve 1. The first flange 5 can stop the movement of the wedge head 6. Since the cross-section of the wedge head 6 along the direction perpendicular to its axial direction is circular, it not only matches the shape of the first flange 5 and the inner hole of the cylinder 3, but also helps to prevent excessive local stress caused by abrupt diameter changes, promotes uniform force transmission inside the cylinder 3 when the tie rod is under force, improves the wear resistance of the wedge head 6, and makes the wedge head 6 suitable for repeated insertion and removal of tie rods. In addition, the wedge head 6 has a hemispherical protrusion at its end, which reduces the sharp edges of the wedge head 6 and helps to reduce adverse effects such as damage to the sleeve 1 during the sealing process, thereby improving the fatigue resistance and service life of the tie bolt hole sealing device.
[0045] Figure 4 A schematic cross-sectional view of the first tube body according to an embodiment of the present invention is shown. Figure 5 A schematic cross-sectional view of the second tube body according to an embodiment of the present invention is shown.
[0046] like Figures 4-5 As shown, an embodiment of this utility model also provides a tie bolt hole forming device for forming tie bolt holes sealed by a tie bolt hole sealing device, comprising a first tube 9 and a second tube 14. The first tube 9 has a first through hole coaxially formed along its own axial direction. The second tube 14 has a second through hole coaxially formed along its own axial direction, and one end of the second tube 14 is configured as an insertion part 13, the outer diameter of which forms an interference fit with the diameter of the first through hole. One end of the first tube 9 serves as a support part 11, and the support part 11 and the insertion part 13 are connected by insertion and insertion. The first tube 9 and the second tube 14 are coaxially connected, and the first through hole and the second through hole are also coaxially connected, allowing the tie bolt to pass through the first through hole and the second through hole along its own extension direction.
[0047] Specifically, both the first tube 9 and the second tube 14 are hollow cylinders. The inner hole of the first tube 9 is the first through hole, and the inner hole of the second tube 14 is the second through hole. The first and second through holes are also cylindrical in shape and coaxial with the first tube 9 and the second tube 14, respectively. The first through hole penetrates the first tube 9 along its own axis, and the second through hole penetrates the second tube 14 along its own axis, so that both the first tube 9 and the second tube 14 have an open-end structure.
[0048] In addition, the first tube 9 and the second tube 14 are, but are not limited to, made of PVC material.
[0049] In this embodiment, according to the tie bolt hole forming device provided by this utility model, during the concrete wall pouring process, a first tube 9 and a second tube 14 are respectively set to pass through the templates on both sides, and the first tube 9 and the second tube 14 are coaxially connected by a socket connection. The tie bolts can pass through the first through hole and the second through hole to fix the templates on both sides. When the wall is completed and the templates and tie bolts are removed, external forces are applied from both sides of the wall to pull apart the socket connection of the first tube 9 and the second tube 14, and then the first tube 9 and the second tube 14 are further removed from the wall. The cross-sectional shape and size of the tie bolt hole left on the concrete wall are consistent with the cross-sectional shape and size of the first tube 9 and the second tube 14, which is conducive to adjusting the hole forming shape and size of the tie bolt hole, and helps to avoid the problems of mechanical hole enlargement and damage to the original structure and labor consumption during the later sealing process. Moreover, placing the tie bolt in the first tube 9 and the second tube 14 reduces the situation of the tie bolt sticking to the wall, and facilitates the disassembly of the tie bolt.
[0050] The tie bolt hole forming device further includes a first end tube 12 and a second end tube 16. The first end tube 12 is coaxially disposed at the other end of the first tube body 9, and the outer diameter of the end face of the first end tube 12 that is away from the first tube body 9 is set to be larger than the outer diameter of the first tube body 9. The second end tube 16 is coaxially disposed at the other end of the second tube body 14, and the outer diameter of the end face of the second end tube 16 that is away from the second tube body 14 is set to be larger than the outer diameter of the second tube body 14. The tie bolt hole forming device further includes a first thread 10 and a second thread 15. The first thread 10 is coaxially disposed on the inner wall of the first tube body 9, located between the first end tube 12 and the bearing portion 11, and close to the first end tube 12. The second thread 15 is coaxially disposed on the inner wall of the second tube body 14, located between the second end tube 16 and the insertion portion 13, and close to the second end tube 16.
[0051] Specifically, the first end tube 12 and the second end tube 16 are, but are not limited to, both configured as truncated conical structures (i.e., the shape formed by cutting a cone with a plane parallel to the bottom surface). The two ends of the first end tube 12 and the second end tube 16 are both two parallel circular end faces, and the smaller of the two circular end faces is fixed to the ends of the first tube body 9 and the second tube body 14 respectively. The diameter of the larger of the two circular end faces is used as the maximum outer diameter of the first end tube 12 and the second end tube 16 along their respective axes perpendicular to themselves.
[0052] Furthermore, the fixing methods of the first end tube 12 and the second end tube 16 include, but are not limited to, integrally forming them with the first tube body 9 and the second tube body 14, respectively. The materials of the first end tube 12 and the second end tube 16 include, but are not limited to, being the same as those of the first tube body 9 and the second tube body 14.
[0053] In this embodiment, by providing a first end tube 12 and a second end tube 16, the shape and size of the two ends of the tie bolt hole left on the concrete wall are consistent with the cross-sectional shape and size of the first end tube 12 and the second end tube 16, respectively. This results in the tie bolt hole formed by the tie bolt hole forming device having flared ends, facilitating the positioning and insertion of the subsequent tie bolt hole sealing device. Simultaneously, the provided first thread 10 and second thread 15 can be used to connect the pulling tool to the first tube body 9 and the second tube body 14, facilitating the effective transmission of pulling force and simplifying the disassembly of the first tube body 9 and the second tube body 14. Furthermore, the first tube body 9, the second tube body 14, the first end tube 12, and the second end tube 16 can all be reused after disassembly, saving materials and improving the utilization efficiency of the tie bolt hole forming device.
[0054] Both the first end tube 12 and the second end tube 16 are hollow structures. The minimum inner diameter of the first end tube 12 along its own axis is greater than or equal to the diameter of the first through hole, and the minimum inner diameter of the second end tube 16 along its own axis is greater than or equal to the diameter of the second through hole.
[0055] Specifically, the shapes of the inner holes of the first end tube 12 and the second end tube 16 are, but are not limited to, truncated conical shapes (i.e., the shape formed by cutting a cone with a plane parallel to its base). The inner hole of the first end tube 12 is coaxial with the first end tube 12, and the inner hole of the second end tube 16 is coaxial with the second end tube 16. The inner hole of the first end tube 12 extends through the first end tube 12 along its own axial direction, and the inner hole of the second end tube 16 extends through the second end tube 16 along its own axial direction, so that both the first end tube 12 and the second end tube 16 have a structure with open ends. Furthermore, the inner hole of the first end tube 12 is connected to the first through hole, and the inner hole of the second end tube 16 is connected to the second through hole.
[0056] In this embodiment, since both the first end tube 12 and the second end tube 16 are designed with internal openings, the passage of the tie bolt is not affected. The first end tube 12 is fixedly connected to the first tube body 9, and the second end tube 16 is fixedly connected to the second tube body 14. The first tube body 9 and the second tube body 14 are connected by a socket joint. After demolding, the tie bolt hole is formed in one step, eliminating the need for a secondary hole-expanding process. This helps avoid destructive prying during demolding, reducing material consumption and the workload of hole repair.
[0057] Therefore, the tie bolt hole sealing and hole forming device provided by this utility model has the advantages of convenient construction, good sealing effect and good durability.
[0058] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.
Claims
1. A device for sealing tie bolt holes, characterized in that, include: The cylindrical body (3) has a cylindrical structure with openings at both ends; Both the sleeve (1) and the support (2) are fitted onto the cylinder (3); The first flange (5) and the second flange (7) both protrude radially from the cylinder (3); The pull rod includes an integrally formed and coaxially arranged wedge (6), a main body and a tail (8). The main body is located inside the cylinder (3) and is coaxial with the cylinder (3). The wedge (6) and the tail (8) are located at the two ends of the cylinder (3) respectively. The second flange (7) is located between the main body and the tail (8), the first flange (5) is located between the wedge (6) and the second flange (7), the maximum outer diameter of the wedge (6) perpendicular to its own axis is greater than the inner diameter of the cylinder (3) and greater than the diameter of the inner hole of the first flange (5), and the support (2) is located between the second flange (7) and the sleeve (1).
2. The tie bolt hole sealing device according to claim 1, characterized in that, The sleeve (1) has a cylindrical structure with one end closed, and is coaxially arranged with the cylinder (3). The cylinder (3), the first flange (5) and the wedge (6) are all located inside the sleeve (1).
3. The tie bolt hole sealing device according to claim 2, characterized in that, The support (2) is coaxially sleeved on the cylinder (3), and the diameter of the inner hole of the support (2) is smaller than the outer diameter of the second flange (7).
4. The tie bolt hole sealing device according to claim 3, characterized in that, The support (2) is also fixed with ribs that are spaced apart along its own circumference; The rib is located on the side of the support (2) that is close to the second flange (7).
5. The tie bolt hole sealing device according to claim 1, characterized in that, The outer surface of the cylinder (3) is provided with a groove (4); The grooves (4) are distributed at intervals along the axial direction of the cylinder (3), and the grooves (4) are evenly distributed along the circumferential direction of the cylinder (3).
6. The tie bolt hole sealing device according to claim 1, characterized in that, The two ends of the wedge (6) are two parallel circular end faces, and the smaller circular end face is fixed to the end of the main body.
7. A tie bolt hole forming apparatus for forming tie bolt holes sealed by the tie bolt hole sealing apparatus as described in any one of claims 1-6, characterized in that, include: The first tube (9) has a first through hole coaxially along its own axis; The second tube (14) has a second through hole coaxially along its own axis. One end of the second tube (14) is set as an insertion part (13), and the outer diameter of the insertion part (13) is interference-fitted with the diameter of the first through hole. Wherein, one end of the first tube (9) serves as a support (11), and is connected to the insertion part (13) through the support (11). The first tube (9) and the second tube (14) are coaxially connected, and the first through hole and the second through hole are coaxially connected, for the tie bolt to pass through the first through hole and the second through hole along its own extension direction.
8. The device for forming holes for tie bolts according to claim 7, characterized in that, Also includes: The first end tube (12) is coaxially disposed at the other end of the first tube body (9), and the outer diameter of the end face of the first end tube (12) that is far away from the first tube body (9) is set to be greater than the outer diameter of the first tube body (9). The second end tube (16) is coaxially disposed at the other end of the second tube body (14), and the outer diameter of the end face of the second end tube (16) that is far away from the second tube body (14) is set to be greater than the outer diameter of the second tube body (14).
9. The device for forming holes for tie bolts according to claim 8, characterized in that, Also includes: The first thread (10) is coaxially disposed on the inner wall of the first tube body (9), located between the first end tube (12) and the bearing (11), and close to the first end tube (12); The second thread (15) is coaxially disposed on the inner wall of the second tube body (14), located between the second end tube (16) and the insertion part (13), and close to the second end tube (16).
10. The device for forming holes for tie bolts according to claim 8, characterized in that, Both the first end tube (12) and the second end tube (16) are hollow structures; Wherein, the minimum inner diameter of the first end tube (12) along its own axis perpendicular to its own axis is greater than or equal to the diameter of the first through hole, and the minimum inner diameter of the second end tube (16) along its own axis perpendicular to its own axis is greater than or equal to the diameter of the second through hole.