Pull rod hole plugging device
By designing a tie rod hole sealing device consisting of a first sealing component and a second sealing component, the problems of low sealing efficiency and environmental pollution in the existing technology are solved, and a highly efficient and aesthetically pleasing hole sealing effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 12TH BUREAU GRP INT ENG CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies for sealing tie rod holes in concrete walls or columns suffer from low efficiency, poor aesthetic results, and potential environmental pollution.
A tie rod hole sealing device consisting of a first sealing component and a second sealing component is used. The first sealing component and the second sealing component are respectively inserted into both ends of the hole. Combined with a self-closing grout inlet component and an anti-detachment protrusion, a dense seal is achieved by filling with mortar.
It achieves quick construction and easy installation, avoids mortar squeezing and overflow, reduces environmental pollution, and has a good appearance.
Smart Images
Figure CN224413223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for sealing tie rod holes, belonging to the field of building construction technology. Background Technology
[0002] During building construction, tie rod holes are often left after concrete walls or columns are poured. To prevent leakage and ensure structural integrity, these tie rod holes need to be sealed tightly one by one, and the mortar sealing must be full and dense, with a firm connection to the previously poured concrete.
[0003] Conventional sealing methods, such as grouting through open holes or injecting polyurethane foam, can easily cause cement mortar to be squeezed out. After grouting, it is necessary to deal with the outflowing waste or to smooth and flatten the grout surface. This is inefficient, produces poor appearance, and the spillage can easily cause waste and environmental pollution, which is not conducive to civilized construction. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tie rod hole sealing device that is easy to install, simple and efficient.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rod hole sealing device, comprising a first sealing component and a second sealing component. The first sealing component is a hollow cylinder with one end open, and multiple vent holes are opened on the end face of the other end. The inner side of the end face is covered with a waterproof and breathable membrane.
[0006] The second sealing component is a hollow cylinder with one end open, and a slurry inlet hole is opened in the middle of the end face of the other end. A self-closing slurry inlet component is installed on the slurry inlet hole.
[0007] The outer diameter of the first and second sealing components is adapted to the inner diameter of the tie rod hole. The first and second sealing components are respectively inserted into both ends of the tie rod hole. Both the first and second sealing components have open ends facing inward, and the other end is flush with the surface of the concrete component.
[0008] Preferably, the self-closing feeder is an elastic thin-walled conical component with the tip of the thin-walled conical component facing inward and the bottom fixed to the feed hole. The sidewall of the thin-walled conical component is evenly cut into multiple parts from the apex downward.
[0009] Preferably, the self-closing feed element is a one-way flap with a diameter larger than the inner diameter of the feed hole. The one-way flap covers the inner side of the feed hole and is hinged at the top above the feed hole.
[0010] Preferably, the self-closing slurry inlet is a flexible thin film tube with one end fixed to the slurry inlet hole, and the flexible thin film tube is located inside the second sealing member.
[0011] Preferably, multiple anti-detachment protrusions are provided on the outer circumferential surface of both the first and second sealing components.
[0012] Preferably, the cross-section of the anti-detachment protrusion is barbed.
[0013] Preferably, both the first and second sealing components have a taper, and the outer diameter of the open end is 1-2 mm smaller than the outer diameter of the other end.
[0014] Preferably, the first and second sealing components are made of plastic, rubber, or metal.
[0015] Preferably, the waterproof and breathable membrane can be replaced with non-woven fabric.
[0016] Compared with the prior art, the present invention has the following beneficial effects.
[0017] This utility model is quick to construct, easy to install, simple and efficient. In use, simply insert the first and second sealing parts into the tie rod hole, and then fill the hole with mortar. There is no need to worry about mortar squeezing out or overflowing. Furthermore, the finished product has an aesthetically pleasing appearance and reduces pollution to the site environment. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the structure of the first sealing component in this utility model.
[0021] Figure 3 for Figure 2 The left view.
[0022] Figure 4 This is a schematic diagram of the structure of the second sealing component in Embodiment 1 of this utility model.
[0023] Figure 5 for Figure 4 The right view.
[0024] Figure 6 This is a diagram showing the usage state of the second sealing component in Embodiment 1 of this utility model.
[0025] Figure 7This is a schematic diagram of the structure of the second sealing component in Embodiment 2 of this utility model.
[0026] Figure 8 for Figure 7 AA cross-section view.
[0027] Figure 9 This is a schematic diagram of the structure of the second sealing component in Embodiment 3 of this utility model.
[0028] In the diagram: 1 is the first sealing component, 2 is the second sealing component, 3 is the vent hole, 4 is the waterproof and breathable membrane, 5 is the grout inlet hole, 6 is the thin-walled conical component, 7 is the one-way flap, 8 is the flexible membrane tube, 9 is the anti-detachment protrusion, 10 is the tie rod hole, 11 is the concrete component, and 12 is the mortar filling pipe. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0030] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0031] The present invention provides the following embodiments.
[0032] Example 1
[0033] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a rod hole sealing device, including a first sealing component 1 and a second sealing component 2. The first sealing component 1 is a hollow cylinder with one end open, and multiple vent holes 3 are opened on the end face of the other end. A waterproof and breathable membrane 4 is covered on the inner side of the end face.
[0034] like Figure 4 , Figure 5 , Figure 6 As shown, the second sealing component 2 is a hollow cylinder with one end open, and a slurry inlet hole 5 is opened in the middle of the end face of the other end. A self-closing slurry inlet component is installed on the slurry inlet hole 5.
[0035] The outer diameter of the first sealing member 1 and the second sealing member 2 is adapted to the inner diameter of the tie rod hole 10. The first sealing member 1 and the second sealing member 2 are respectively inserted into the two ends of the tie rod hole 10. The first sealing member 1 and the second sealing member 2 both have open ends facing inward, and the other end is flush with the surface of the concrete component 11.
[0036] The first sealing component 1 and the second sealing component 2 are interference fit with the tie rod hole 10, or the materials of the first sealing component 1 and the second sealing component 2 have a certain elasticity and can be squeezed into the tie rod hole 10 to prevent them from being washed out by the mortar when filling the mortar.
[0037] like Figure 4 , Figure 5 , Figure 6 As shown, the self-closing feeder is a thin-walled conical part 6 with elasticity. The tip of the thin-walled conical part 6 faces inward and the bottom is fixed on the feed hole 5. The sidewall of the thin-walled conical part 6 is evenly cut into multiple parts from the apex downward.
[0038] The sidewalls of the thin-walled conical component 6 can be expanded under external force and return to their original position after the force is removed. Furthermore, for aesthetic purposes, the taper of the thin-walled conical component 6 can be made relatively large, minimizing the inward indentation of its tip. This results in a smoother surface for the second sealing component 2 after mortar filling. The height of the thin-walled conical component 6 is 2-5mm, depending on the size of the tie rod hole.
[0039] Multiple anti-detachment protrusions 9 are provided on the outer circumferential surface of the first sealing member 1 and the second sealing member 2.
[0040] The cross-section of the anti-detachment protrusion 9 is barbed.
[0041] Both the first sealing element 1 and the second sealing element 2 have a taper, and the outer diameter of the open end is 1-2 mm smaller than the outer diameter of the other end.
[0042] The first sealing component 1 and the second sealing component 2 are made of plastic, rubber, or metal.
[0043] The waterproof and breathable membrane 4 can be replaced with non-woven fabric. However, the waterproof and breathable membrane 4 prevents the evaporation of moisture in the mortar, which can reduce the need for subsequent watering and curing.
[0044] The method for sealing the tie rod hole 10 using this embodiment is as follows.
[0045] Insert the first sealing member 1 and the second sealing member 2 into the two ends of the tie rod hole 10 respectively. Insert the mortar filling tube 12 into the thin-walled conical member 6 on the second sealing member 2. The side wall of the thin-walled conical member 6 is opened. After the mortar filling tube is inserted into the tie rod hole 10, fill the tie rod hole 10 with mortar or polyurethane foam. The first sealing member 1 at the other end intercepts the mortar to prevent it from flowing out. After the tie rod hole 10 is filled with mortar, pull out the mortar filling tube. The side wall of the thin-walled conical member 6 returns to its original position under its own elasticity and the pressure of the internal mortar, sealing the grout inlet hole 5 to prevent the mortar from overflowing. Then wait for the mortar to solidify.
[0046] The mortar filling tube 12 can be made of a large syringe or a similar syringe-like piston-push structure.
[0047] Example 2
[0048] like Figure 7 , Figure 8 As shown in the second embodiment, the self-closing feeder is a one-way flap 7 with a diameter larger than the inner diameter of the feed hole 5. The one-way flap 7 covers the inner side of the feed hole 5 and is hinged at the top above the feed hole 5.
[0049] The rest of the structure is the same as in Example 1.
[0050] The method for sealing the tie rod hole 10 using this embodiment is as follows.
[0051] Insert the first sealing member 1 and the second sealing member 2 into the two ends of the tie rod hole 10 respectively. Insert the mortar filling pipe 12 into the one-way flap 7 on the second sealing member 2. The one-way flap 7 is pushed open. After the mortar filling pipe is inserted into the tie rod hole 10, fill the tie rod hole 10 with mortar or polyurethane foam. The first sealing member 1 at the other end intercepts the mortar to prevent it from flowing out. After the tie rod hole 10 is filled with mortar, pull out the mortar filling pipe. Under the action of its own weight and the pressure of the internal mortar, the one-way flap 7 returns to its original position and seals the grout inlet 5 to prevent the mortar from overflowing. Then wait for the mortar to solidify.
[0052] Example 3
[0053] like Figure 9 As shown in the third embodiment, the self-closing slurry inlet is a flexible film tube 8 with one end fixed to the slurry inlet hole 5, and the flexible film tube 8 is located inside the second sealing member 2.
[0054] The rest of the structure is the same as in Example 1.
[0055] The method for sealing the tie rod hole 10 using this embodiment is as follows.
[0056] Insert the first sealing member 1 and the second sealing member 2 into the two ends of the tie rod hole 10 respectively. Insert the mortar filling tube 12 into the flexible membrane tube 8 on the second sealing member 2. The flexible membrane tube 8 is stretched open. After the mortar filling tube is inserted into the tie rod hole 10, fill the tie rod hole 10 with mortar or polyurethane foam. The first sealing member 1 at the other end intercepts the mortar to prevent it from flowing out. After the tie rod hole 10 is filled with mortar, pull out the mortar filling tube. Under the pressure of the mortar inside, the flexible membrane tube 8 is flattened and tightly attached to the mortar inlet hole 5, sealing the mortar inlet hole 5 to prevent the mortar from overflowing. Then wait for the mortar to solidify.
[0057] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A device for sealing holes in tie rods, characterized in that: It includes a first sealing component (1) and a second sealing component (2). The first sealing component (1) is a hollow cylinder with one end open and multiple vent holes (3) on the end face of the other end. A waterproof and breathable membrane (4) is covered on the inner side of the end face. The second sealing component (2) is a hollow cylinder with one end open, and a slurry inlet hole (5) is opened in the middle of the end face of the other end. A self-closing slurry inlet component is installed on the slurry inlet hole (5). The outer diameter of the first sealing member (1) and the second sealing member (2) are adapted to the inner diameter of the tie rod hole (10). The first sealing member (1) and the second sealing member (2) are respectively inserted into the two ends of the tie rod hole (10). The first sealing member (1) and the second sealing member (2) both have open ends facing inward, and the other end is flush with the surface of the concrete component (11).
2. The rod hole sealing device according to claim 1, characterized in that: The self-closing feeder is a thin-walled conical part (6) with elasticity. The tip of the thin-walled conical part (6) faces inward and the bottom is fixed on the feed hole (5). The side wall of the thin-walled conical part (6) is evenly cut into multiple parts from the top downward.
3. The rod hole sealing device according to claim 1, characterized in that: The self-closing slurry inlet is a one-way flap (7) with a diameter larger than the inner diameter of the slurry inlet hole (5). The one-way flap (7) covers the inner side of the slurry inlet hole (5) and is hinged at the top above the slurry inlet hole (5).
4. The rod hole sealing device according to claim 1, characterized in that: The self-closing slurry inlet is a flexible membrane tube (8) with one end fixed to the slurry inlet hole (5), and the flexible membrane tube (8) is located inside the second sealing member (2).
5. A rod hole sealing device according to any one of claims 1-4, characterized in that: Multiple anti-detachment protrusions (9) are provided on the outer circumferential surface of the first sealing member (1) and the second sealing member (2).
6. The rod hole sealing device according to claim 5, characterized in that: The cross-section of the anti-detachment protrusion (9) is barbed.
7. A rod hole sealing device according to any one of claims 1-4, characterized in that: Both the first sealing element (1) and the second sealing element (2) have a taper, and the outer diameter of the open end is 1-2 mm smaller than the outer diameter of the other end.
8. A rod hole sealing device according to any one of claims 1-4, characterized in that: The first sealing element (1) and the second sealing element (2) are made of plastic, rubber, or metal.
9. A rod hole sealing device according to any one of claims 1-4, characterized in that: The waterproof and breathable membrane (4) is replaced with non-woven fabric.