Screw hole plugging device in high wind speed environment

Abstract

The utility model provides a kind of screw hole plugging device under high wind speed environment belongs to building construction technical field, the screw hole plugging device under high wind speed environment includes both sides of sealing cap and the connecting sleeve rod of middle part, sealing cap includes plugging part and grouting part, grouting part is the grouting passage of being set in the axial position of sealing cap, grouting passage is fixed sealing by sealing cap;Connecting sleeve rod is hollow structure, grouting hole is set in pipe wall, outer wall is provided with reinforcing anchor rod, connecting sleeve pipe is communicated with grouting passage, for filling cement slurry inside;The outer edge of sealing cap is provided with side stop mechanism, and air hole is set in side stop mechanism;Sealing cap inside is provided with protruding portion, and it is inserted with connecting sleeve rod by protruding portion, and protruding portion and connecting sleeve rod inner wall are fixed by adhesive sticking;The utility model can solve under high wind speed environment, it is difficult to withstand tensile force and shear force generated by wind pressure alternate impact, easy to appear overall loosening even fall off, cannot form the problem of durable reliable anchoring.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically, it relates to a screw hole sealing device under high wind speed environment. Background Technology

[0002] Tie rod holes are the openings left after the removal of tie rods used to fix formwork during concrete structure construction. If not sealed, they can become a hidden danger to structural safety. Sealing tie rod holes requires preventing rainwater and dust from entering, avoiding corrosion of internal steel bars, and preventing indoor and outdoor air convection from affecting energy efficiency. Therefore, conventional sealing (such as mortar filling or foam sealant filling) is a basic procedure to ensure structural durability.

[0003] However, existing sealing devices exhibit significant drawbacks in strong wind scenarios: Firstly, alternating wind pressure leads to material fatigue, causing rigid mortar to crack due to stress concentration, while foamed sealant detaches due to stress. Secondly, high-speed airflow creates vortex negative pressure at the opening, compromising the sealing interface. Rainwater, propelled by wind pressure, seeps into the wall through gaps, causing corrosion of the internal steel reinforcement and a decrease in structural strength. Therefore, considering these factors, existing technologies lack structural designs to enhance wind resistance and connection strength when sealing bolt holes on building exteriors. In high-wind-speed environments, they struggle to withstand the pull-out and shear forces generated by alternating wind pressure, leading to potential loosening or even detachment and an inability to achieve durable and reliable anchoring. Utility Model Content

[0004] In view of this, the present invention provides a screw hole sealing device for high wind speed environments, which can solve the problem that in high wind speed environments, it is difficult to withstand the pulling force and shear force generated by the alternating impact of wind pressure, and the whole body is prone to loosening or even falling off, and it is impossible to form a durable and reliable anchor.

[0005] This utility model is implemented as follows: This utility model provides a screw hole sealing device for high wind speed environments, including caps on both sides and a connecting sleeve in the middle. The caps include a sealing part and a grouting part. The grouting part is a grouting channel opened at the axial position of the cap, and the grouting channel is fixed and sealed by a sealing cap. The connecting sleeve is a hollow structure with grouting holes in the tube wall and a reinforcing anchor rod on the outer wall. The connecting sleeve is connected to the grouting channel for filling cement grout into the interior. The outer edge of the cap is provided with a side baffle mechanism with air holes.

[0006] The technical advantages of this utility model for sealing screw holes in high wind speed environments are as follows: By designing the connecting sleeve as a hollow structure and opening grouting holes in the pipe wall, which are connected to the grouting channel of the cap, cement grout can be injected into the screw hole and the gap between the connecting sleeve and the hole wall. After the cement grout solidifies, the connecting sleeve and the screw hole form a rigid integrated structure, significantly improving the anchoring strength between the sealing device and the base layer. By setting reinforcing anchors on the outer wall of the connecting sleeve, the interlocking between the connecting sleeve and the cement grout and the hole wall is further enhanced, avoiding overall detachment caused by repeated wind pressure impacts under high wind speeds, and solving the problems of poor crack resistance and insufficient strength of traditional mortar sealing. The sealing cap is used to fix and seal the grouting channel, ensuring that the interior is dense after grouting, thus making the overall solution have a better wind pressure resistance.

[0007] Based on the above technical solution, the screw hole sealing device of this utility model under high wind speed environment can be further improved as follows: The cap has a protrusion on its inner side, which is inserted into the connecting sleeve rod. The protrusion is then glued to the inner wall of the connecting sleeve rod with an adhesive.

[0008] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting up protrusions to cooperate with adhesive to firmly fix the cap to both ends of the connecting sleeve rod, the impact of wind vibration on the overall sealing structure cavity is reduced.

[0009] Furthermore, an installation groove is provided in the wall corresponding to the screw hole, and the outer diameter of the side stop mechanism is matched with the inner diameter of the installation groove.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting the mounting groove to provide an embedded fixing base for the side barrier mechanism and the cap, under high wind speed, the impact force of the airflow on the side barrier mechanism can be directly transmitted to the wall body (rather than acting only on the bonding interface between the sealing material and the wall).

[0011] Furthermore, the cap has an umbrella-shaped structure, and the side blocking mechanism has a flat circular structure.

[0012] Furthermore, waterproof sealant is applied between the side guard mechanism and the mounting groove.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by applying waterproof sealant to seal and fix the back of the side guard mechanism to the mounting groove, when rainwater attempts to penetrate under wind pressure, the sealant can directly block the water flow path, preventing rainwater from seeping into the screw hole along the inner wall of the mounting groove and causing damage to the internal structure of the wall.

[0014] Furthermore, there are two sets of air holes, which are respectively opened on both sides of the contact area between the side guard mechanism and the screw hole.

[0015] The beneficial effects of adopting the above-mentioned improved scheme are as follows: Two sets of vents are respectively opened on both sides of the contact area between the side baffle mechanism and the screw hole, forming a "two-way exhaust channel" during grouting. When cement grout is injected into the screw hole and connecting sleeve from the grouting channel, the original air inside the hole will flow to both sides due to the grout compression and be simultaneously discharged through the vents on both sides. Compared with a single vent, this avoids the "air blockage" problem caused by unidirectional airflow congestion.

[0016] Furthermore, the sealing cap and the grouting channel are fixedly installed by bolts, and the outer side of the sealing cap is provided with a groove for tightening the workpiece during installation.

[0017] Furthermore, a recess is provided on the outer edge of the grouting channel, and a sealing ring is installed in the recess.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a recessed part in conjunction with a sealing ring, the sealing performance between the sealing cover and the grouting part is enhanced, preventing airflow or rainwater from potentially intruding through the micro-gap of the bonding surface under high wind speed.

[0019] Furthermore, the anchor bolts are reinforced as columns.

[0020] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the reinforced anchor rod surface of the column structure is flat and has a continuous circumferential profile. When the cement grout is injected through the grouting channel, it can form a uniform and large-area contact with the column surface. When the cement grout solidifies, it will tightly wrap around the column, generating a strong gripping force, which can effectively resist the wind pressure impact and pulling effect on the sealing device under high wind speeds; and the column anchor rod will not experience local cement grout cracking caused by stress concentration, ensuring more stable anchoring strength between the connecting sleeve and the bolt hole wall, and reducing the risk of loosening or falling off the sealing device due to anchoring failure.

[0021] Furthermore, the reinforcing anchor is a truncated cone with a bottom diameter smaller than its top diameter.

[0022] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the gradually changing diameter of the truncated cone provides a guiding slope for the grout flow, allowing the grout to smoothly climb from the bottom to the top along the side of the truncated cone during grouting, avoiding dead zones that may occur around the column anchor. At the same time, the thinner structure at the bottom reduces obstruction to the initial grout flow, allowing the grout to fill to the bottom of the screw hole more quickly; the thicker part at the top can push the grout to the edge through a larger contact area in the later stages of grouting, and together with the venting function of the air holes on both sides, further reduces air bubble residue and improves the filling density.

[0023] Compared with existing technologies, the beneficial effects of this utility model's screw hole sealing device under high wind speed conditions are as follows: By designing the connecting sleeve as a hollow structure and opening grouting holes in the pipe wall, which are connected to the grouting channel of the cap, cement slurry can be injected into the screw hole and the gap between the connecting sleeve and the hole wall. After the cement slurry solidifies, it can form a rigid integrated structure between the connecting sleeve and the screw hole, significantly improving the anchoring strength between the sealing device and the base layer. By setting reinforced anchor rods on the outer wall of the connecting sleeve, the interlocking between the connecting sleeve and the cement slurry and the hole wall is further enhanced, avoiding overall detachment caused by repeated wind pressure impacts under high wind speeds, and solving the problems of poor crack resistance and insufficient strength of traditional mortar sealing. The sealing cap is used to fix and seal the grouting channel, ensuring that the interior is dense and without cavities after grouting, reducing the negative pressure damage caused by airflow disturbance. Overall, compared with traditional sealing foam filling, the use of rigid filling combined with mechanical anchoring makes the screw hole sealing device more resistant to wind pressure and rainwater intrusion into the wall. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0025] Figure 1 This is a schematic diagram of the structure of the first embodiment; Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle; Figure 3 This is a partial schematic diagram of the second embodiment; The attached diagram lists the components represented by each number as follows: 10. Cap; 101. Sealing part; 102. Grouting part; 11. Connecting sleeve; 111. Grouting hole; 112. Reinforcing anchor; 12. Side blocking mechanism; 13. Wall; 14. Screw hole; 15. Installation groove; 16. Waterproof sealant; 17. Sealing cap; 18. Air hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] Example 1:

[0028] like Figure 1Figure 2 shows a first embodiment of a screw hole sealing device for high wind speed environments provided by this utility model. In this embodiment, it includes caps on both sides and a connecting sleeve in the middle. The caps include a sealing part and a grouting part. The grouting part is a grouting channel opened at the axial position of the cap. The grouting channel is fixed and sealed by a sealing cap. The connecting sleeve is a hollow structure with grouting holes in the pipe wall and a reinforcing anchor rod on the outer wall. The connecting sleeve is connected to the grouting channel for filling cement grout into the interior. The outer edge of the cap is provided with a side baffle mechanism with air holes.

[0029] In the above technical solution, a protrusion is provided on the inner side of the cap, which is inserted into the connecting sleeve rod. The protrusion is then glued and fixed to the inner wall of the connecting sleeve rod with an adhesive.

[0030] Furthermore, in the above technical solution, an installation groove is provided at the screw hole in the wall, and the outer diameter of the side stop mechanism is adapted to the inner diameter of the installation groove.

[0031] Furthermore, in the above technical solution, the cap is an umbrella-shaped structure, and the side blocking mechanism is a flat circular ring structure.

[0032] Furthermore, in the above technical solution, waterproof sealant is applied between the side guard mechanism and the mounting groove.

[0033] Furthermore, in the above technical solution, there are two sets of air holes, which are respectively opened on both sides of the contact area between the side baffle mechanism and the screw hole.

[0034] Furthermore, in the above technical solution, the sealing cover and the grouting channel are fixedly installed by bolts, and the outer side of the sealing cover is provided with a groove for cooperating with the tightening of the workpiece for installation.

[0035] Furthermore, in the above technical solution, a recess is provided on the outer edge of the grouting channel, and a sealing ring is installed in the recess.

[0036] Furthermore, in the above technical solution, the reinforcing anchor rod is a column.

[0037] The following provides the parameter configuration range for Example 1: Connecting sleeve outer diameter 8-12mm, length 20-30mm longer than the screw hole depth; reinforcing anchor rod diameter 5-8mm, length 15-20mm, 4-6 rods evenly distributed circumferentially along the outer wall of the sleeve; side stop mechanism (flat ring) outer diameter 50-80mm, thickness 3-5mm, installation groove depth matched with side stop mechanism thickness (error ≤0.5mm); air hole diameter 3-5mm, 2 per group, symmetrically distributed; waterproof sealant is silicone type, thickness 2-3mm; sealing ring is made of nitrile rubber, cross-sectional diameter 3-4mm, with an interference fit of 0.2-0.3mm with the recess; grouting uses C30 expansive cement grout, water-cement ratio 0.4-0.5.

[0038] During use, create an installation groove at the bolt hole in the wall, the depth of which depends on the thickness of the cap. Apply waterproof sealant evenly along the groove, to a thickness of 2mm. Insert the connecting sleeve into the bolt hole, connecting one end to the protruding part of the cap. Apply epoxy resin adhesive (0.5-1mm thickness) to the inner wall and allow it to cure for 10-15 minutes. Install the cap on the other side in the same way, ensuring the sleeve is centered. Inject cement grout through one side of the grouting channel at a pressure of 0.3-0.5MPa. Observe the pores on both sides. When the grout continuously overflows without bubbles, temporarily seal the pores with rubber plugs. 24 hours after grouting (when the cement grout has initially set), remove the rubber plugs from the pores and inject a small amount of waterproof sealant to seal them. Embed the sealing ring into the recessed part of the grouting channel and tighten the sealing cap with a matching groove tool to ensure a tight seal. The technical effects of Example 1 are as follows: the column anchor rod and cement grout form a uniform bond, and with the side baffle mechanism for flow guidance, it can withstand the impact of winds below level 10, and is suitable for the exterior walls of general high-rise buildings.

[0039] Example 2:

[0040] like Figure 3 As shown, a new embodiment is formed by making the following improvements to the technical solution of Embodiment 1. In the above technical solution, the reinforcing anchor rod is a frustum with a bottom diameter smaller than the top diameter.

[0041] The following provides the parameter configuration range for Embodiment 2: the bottom diameter of the frustum-shaped reinforced anchor rod is 5-6mm, the top diameter is 8-10mm, the height is 15-20mm, and the taper is 3°-5°; the other parameters are the same as in Embodiment 1.

[0042] When using, the assembly and fixing steps are the same as in Example 1, ensuring that the frustum-shaped anchor rod remains stable when inserted into the screw hole. During grouting, control the pressure to 0.4-0.6 MPa, utilizing the frustum-shaped structure to guide the grout flow and reduce air bubble residue. The pore plugging and sealing cap installation are the same as in Example 1; due to the stronger anchoring force of the frustum, the resulting fixing effect is better.

[0043] The technical effects of Example 2 are as follows: the self-locking effect of the frustum-shaped anchor increases the pull-out resistance by more than 30%, which can withstand winds below level 12; the tapered design increases the grouting density by 20%, making it suitable for strong wind environments such as typhoon zones and wind turbine towers. Specifically, the principle of this utility model is as follows: Through the synergistic effect of mechanical anchoring, grouting curing, and multi-stage sealing, reliable sealing of the bolt hole is achieved in high wind speed environments. During construction, a hollow connecting sleeve with reinforced anchor rods on its outer wall is inserted into the bolt hole, fixing one end to the cap. The cap is initially fixed by applying waterproof sealant through a side-blocking mechanism. Then, the other cap is installed to fix the connecting sleeve's position within the bolt hole. Grout is injected into the connecting sleeve and the gap in the hole wall through the grouting channel at the axis of one cap. Air is simultaneously released through vents on both sides, ensuring the cement grout fills all spaces. After curing, a rigid whole is formed, tightly bonding the connecting sleeve to the wall. The waterproof sealant and the side-blocking mechanism form the first seal, while the sealing ring in the recessed part outside the grouting channel, in conjunction with the sealing cap, forms the second seal, preventing strong winds and rainwater from intruding into the wall.

Claims

1. A screw hole sealing device for high wind speed environments, comprising sealing caps on both sides and a connecting sleeve in the middle, characterized in that, The cap includes a sealing part and a grouting part. The grouting part is a grouting channel opened at the axial position of the cap, and the grouting channel is fixed and sealed by the sealing cap. The connecting sleeve is a hollow structure with grouting holes in the pipe wall and a reinforcing anchor rod on the outer wall. The connecting sleeve is connected to the grouting channel for filling cement grout into the interior. The outer edge of the cap is provided with a side blocking mechanism with air holes.

2. The screw hole sealing device under high wind speed environment according to claim 1, characterized in that, The inner side of the cap is provided with a protrusion, which is inserted into the connecting sleeve rod. The protrusion and the inner wall of the connecting sleeve rod are glued and fixed together with adhesive.

3. The screw hole sealing device under high wind speed environment according to claim 2, characterized in that, The wall is provided with an installation groove at the corresponding screw hole, and the outer diameter of the side guard mechanism is matched with the inner diameter of the installation groove.

4. The screw hole sealing device under high wind speed environment according to claim 3, characterized in that, The cap has an umbrella-shaped structure, and the side blocking mechanism has a flat circular structure.

5. A screw hole sealing device under high wind speed conditions according to claim 4, characterized in that, Waterproof sealant is applied between the side guard mechanism and the mounting groove.

6. The screw hole sealing device under high wind speed environment according to claim 5, characterized in that, There are two sets of air holes, which are respectively opened on both sides of the contact area between the side guard mechanism and the screw hole.

7. A screw hole sealing device under high wind speed conditions according to claim 6, characterized in that, The sealing cap and the grouting channel are fixedly installed by bolts, and the outer side of the sealing cap is provided with a groove for tightening the workpiece during installation.

8. A screw hole sealing device under high wind speed conditions according to claim 7, characterized in that, A recessed section is provided on the outer edge of the grouting channel, and a sealing ring is installed inside the recessed section.

9. A screw hole sealing device under high wind speed conditions according to claim 8, characterized in that, The reinforcing anchor is a column.

10. A screw hole sealing device under high wind speed conditions according to claim 8, characterized in that, The reinforcing anchor is a truncated cone with a bottom diameter smaller than its top diameter.

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