A leak-proof seal plug

CN224769881UActive Publication Date: 2026-09-18CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY +1
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Patent Information

Application Number
CN202521305515.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-09-18
Estimated Expiration
2035-06-25

AI Technical Summary

Technical Problem

因墙塞直径大于螺栓孔直径,钉入后墙塞与螺栓孔紧密贴合(紧密贴合长度达到16.2mm),能有效阻断外墙水分通过螺栓孔渗入墙内,但在锤入密封堵头时,容易发生偏转,密封堵头与墙面的垂直度无法保证

Benefits of technology

[0009] This utility model discloses a leak-proof sealing plug, which employs a conical part and a cylindrical part that rotate relative to each other. The slider can move along the generatrix of the conical part, and the cylindrical part cooperates with the top plate through a connector. This allows the rotating cylindrical part to drive the top plate to move radially outward until it abuts against the inner wall of the bolt hole, thus achieving the alignment of the leak-proof sealing plug. Furthermore, the slider and the corresponding top plate slide against each other along the length of the top plate, ensuring that when the conical and cylindrical parts can continue to be inserted into the bolt hole, the top plate remains supported on the inner wall of the hole, maintaining the perpendicularity of the leak-proof sealing plug to the wall surface.

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Abstract

The utility model belongs to wall body reserved hole sealing construction technical field, concretely is a kind of anti -leakage sealing plug, it includes: the conical portion and cylindrical portion of mutual rotation cooperation, and the cylindrical portion is located at the tail end of conical portion;Multiple roof, it is centrally symmetric distribution and is set on conical portion, the roof can be supported in hole wall by the radial displacement of along conical portion outward;With the sliding plate of one-to-one correspondence setting of roof, along the generatrix direction of conical portion and conical portion sliding cooperation;Support, it can be set in conical portion along axial displacement, the sliding plate is radially sliding and is set on support;Connecting piece, the support is connected with cylindrical portion, the sliding plate and its corresponding roof between roof in the length direction of roof and roof sliding cooperation.The utility model has the advantage that sealing plug keeps perpendicularity with wall surface when inserting bolt hole.
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Description

Technical Field

[0001] This utility model relates to the field of wall pre-reserved hole sealing construction technology; specifically, this utility model relates to a leak-proof sealing plug. Background Technology

[0002] Currently, a large number of through-wall tie rods are used in the construction of shear walls and frame-shear wall structures. The sealing of these tie rod holes is crucial to preventing leakage in the exterior walls and must be carefully considered during construction. A significant portion of exterior wall leakage cases are caused by inadequate sealing of the tie rod holes. Traditional methods for sealing exterior wall tie rod holes mainly involve: flushing out the PVC pipes and cleaning the area; first filling the inner wall with cement mortar; then filling with expanding cement mortar from the outside in, securing it with reinforcing bars, smoothing the surface, and finally applying a cement-based waterproof coating. This method is not very practical, the depth of cement mortar insertion is uncontrollable, and the sealing effect is often insufficient.

[0003] In existing technology, before applying cement mortar, sealing plugs made of rubber are inserted into the bolt holes. During construction, workers use a hammer on scaffolding or a suspended platform to drive the rubber plugs into the bolt holes, recessing them 1-2 mm below the wall surface. During driving, the plugs are kept as perpendicular to the wall as possible to ensure a tight fit. Because the plug diameter is larger than the bolt hole diameter, the plugs fit tightly (up to 16.2 mm) after driving, effectively preventing moisture from seeping into the wall through the bolt holes. However, when hammering the sealing plugs in, they are prone to deflection, making it difficult to guarantee their perpendicularity to the wall. Utility Model Content

[0004] In view of this, the present invention provides a leak-proof sealing plug, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides a leak-proof sealing plug, comprising: A conical portion and a cylindrical portion that rotate and engage with each other, wherein the cylindrical portion is located at the tail end of the conical portion; Multiple top plates are centrally symmetrically distributed on the conical section. The top plates can be supported inside the hole wall by radially displacing outward along the conical section, thereby achieving the alignment of the anti-permeability sealing plug with the bolt hole. The sliding plates, which correspond one-to-one with the top plate, slide and engage with the tapered section along the generatrix of the tapered section. By displacing towards the tail end along the generatrix of the tapered section, the top plate is driven to displace radially outward. The bracket is axially displaceable within the tapered portion, and the slide plate is radially slidably sleeved on the bracket; A connector connects the bracket to the cylindrical part and is used to drive the bracket to move axially when the cylindrical part rotates; The sliding plate and its corresponding top plate slide together along the length of the top plate, so that when the top plate is supported on the inner wall of the hole, the conical part and the cylindrical part can continue to be inserted into the bolt hole.

[0006] In the aforementioned leak-proof sealing plug, optionally, the connecting member is a bolt, the head of which is fixedly connected to the center of the cylindrical part, and the tail of the bolt is rotatably sleeved on the center of the conical part. The bracket includes a movable ring, which is threadedly connected to a bolt. Rotating the bolt causes the movable ring to move axially.

[0007] In the aforementioned leak-proof sealing plug, the bracket may optionally further include: A sliding rod is fixedly installed on the outer wall of the moving ring, and the end of the sliding rod away from the moving ring is slidably engaged with the tapered portion. The push rod has its end rotatably positioned at the end of the sliding rod away from the moving ring. The end of the push rod away from the sliding rod can contact the tail of the bolt. The rotation direction of the push rod is opposite to the rotation direction of the bolt, and it is used to abut against the tail of the bolt to prevent the bolt from reversing.

[0008] In the aforementioned leak-proof sealing plug, optionally, a stop block is fixedly installed at the end of the sliding rod away from the moving ring. The stop block is located outside the top rod and is used to limit the rotation direction of the top rod to abut the tail of the bolt.

[0009] This utility model discloses a leak-proof sealing plug, which employs a conical part and a cylindrical part that rotate relative to each other. The slider can move along the generatrix of the conical part, and the cylindrical part cooperates with the top plate through a connector. This allows the rotating cylindrical part to drive the top plate to move radially outward until it abuts against the inner wall of the bolt hole, thus achieving the alignment of the leak-proof sealing plug. Furthermore, the slider and the corresponding top plate slide against each other along the length of the top plate, ensuring that when the conical and cylindrical parts can continue to be inserted into the bolt hole, the top plate remains supported on the inner wall of the hole, maintaining the perpendicularity of the leak-proof sealing plug to the wall surface. Attached Figure Description

[0010] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention, showing the tapered portion inserted into the bolt hole; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the cylindrical portion of this utility model; Figure 4This is a schematic diagram of the conical part of this utility model; Figure 5 This is a schematic diagram of the connection structure of the bracket, slide plate, top plate, sliding rod and top rod of this utility model; Figure 6 This is a cross-sectional view of the tapered portion of this utility model.

[0011] Reference numerals: 1. Conical part; 2. Cylindrical part; 3. Top plate; 4. Slide plate; 5. Bracket; 5-1. Moving ring; 5-2. Moving rod; 5-3. Connecting rod; 6. Bolt; 7. Slide groove; 8. Inclined groove; 9. Sliding rod; 10. Top rod; 11. Stop block; 12. Moving groove. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] like Figures 1 to 6 As shown, a typical embodiment of this utility model provides a leak-proof sealing plug, comprising: The conical part 1 and the cylindrical part 2 rotate and engage with each other, with the cylindrical part 2 located at the tail end of the conical part 1; Multiple top plates 3 are centrally symmetrically distributed on the conical part 1. The top plates 3 can be supported inside the hole wall by radially displacing outward along the conical part 1, thereby achieving the alignment of the anti-permeability sealing plug with the bolt hole. The sliding plate 4, which is set one-to-one with the top plate 3, slides and engages with the tapered part 1 along the generatrix direction of the tapered part 1. By displacing towards the tail end along the generatrix direction of the tapered part 1, the top plate 3 is driven to move radially outward. The bracket 5 is axially displaceable within the tapered portion 1, and the slide plate 4 is radially slidably sleeved on the bracket 5. The connector connects the bracket 5 to the cylindrical part 2 and is used to drive the bracket 5 to move axially when the cylindrical part 2 rotates. The sliding plate 4 and its corresponding top plate 3 slide together in the length direction of the top plate 3, so that when the top plate 3 is supported on the inner wall of the hole, the tapered part 1 and the cylindrical part 2 can continue to be inserted into the bolt hole.

[0014] In use, first insert the conical part 1 into the bolt hole until the cylindrical part 2 is engaged in the bolt hole. At this time, rotate the cylindrical part 2 to drive the connector to rotate along its circumference. When the connector rotates, it drives the bracket 5 to move axially toward the tail end of the conical part 1. The bracket 5 drives the sliding plate 4 to move toward the tail end along the generatrix of the conical part 1. The sliding plate 4 drives the top plate 3 to move radially outward in the conical part 1 until it abuts against the inner wall of the bolt hole, thereby achieving the alignment of the anti-seepage sealing plug with the bolt hole and correcting the anti-seepage sealing plug to a vertical state with the wall surface. At this time, the cylindrical part 2 is hammered into the bolt hole. As the conical part 1 and the cylindrical part 2 continue to enter the bolt hole, the sliding plate 4 slides along the length of the corresponding top plate 3, keeping the top plate 3 supported in the bolt hole and maintaining its position. This ensures that the cylindrical part 2 remains perpendicular to the wall when it enters the bolt hole, so that the leak-proof sealing plug fits tightly with the bolt hole.

[0015] In a specific embodiment where the slide plate 4 and the top plate 3 slide together, the top plate 3 is provided with a moving groove 12, and the end of the slide plate 4 is slidably installed in the moving groove 12. In a relatively specific embodiment of the tapered component, the tapered component is fitted with an elastic band that can contact the end of the top plate 3 to hold the top plate 3 in its initial position, so that the top plate 3 and the slide plate 4 have sufficient movement when the tapered part 1 and the cylindrical part 2 are inserted into the bolt holes.

[0016] In a specific embodiment where the connector cooperates with the bracket 5, the connector is a bolt 6, whose head is fixedly connected to the center of the cylindrical part 2, and whose tail is rotatably sleeved on the center of the conical part 1. The bracket 5 includes a movable ring 5-1, which is threadedly connected to a bolt 6. Rotating the bolt 6 causes the movable ring 5-1 to move axially.

[0017] Specifically, the conical part 1 has a groove 7 inside, the bracket 5 is slidably installed in the groove 7, the conical part 1 has equidistant inclined grooves 8 in the circumferential direction, the inclined grooves 8 correspond one-to-one with the slide plate 4, the inclined grooves 8 are in the same direction as the generatrix of the conical part 1, the slide plate 4 is slidably installed in the inclined groove 8, the moving ring 5-1 is fixedly installed with a moving rod 5-2, and the slide plate 4 is slidably sleeved on the outside of the moving rod 5-2; When the cylindrical part 2 is rotated, the bolt 6 can be rotated. The rotation of the bolt 6 causes the moving ring 5-1 to move along the axial direction of the bolt 6 toward the tail end of the conical part 1. The moving ring 5-1 causes the slide plate 4 to slide along the inclined groove 8 and causes the top plate 3 to move radially outward in the conical part 1.

[0018] In a relatively specific embodiment, the stent 5 further includes: The sliding rod 9 is fixedly installed on the outer wall of the moving ring 5-1, and the end of the sliding rod 9 away from the moving ring 5-1 is slidably engaged with the conical part 1. The push rod 10 has its end rotatably positioned at the end of the sliding rod 9 away from the moving ring 5-1. The end of the push rod 10 away from the sliding rod can contact the tail of the bolt 6. The rotation direction of the push rod 10 is opposite to the rotation direction of the bolt 6, and it is used to abut the tail of the bolt 6 to prevent the bolt 6 from reversing.

[0019] Specifically, a connecting rod 5-3 is fixedly installed at the end of the sliding rod 9. The end of the connecting rod 5-3 away from the top rod 10 is fixedly installed on the outside of the moving ring 5-1. When the slide plate 4 is at the extreme position of the inclined groove 8 near the head of the conical part 1, the side of the top rod 10 near the sliding rod 9 is on the same plane as the tail end face of the bolt 6. When the cylindrical part 2 rotates, it drives the moving ring 5-1 to move. The moving ring 5-1 drives the sliding rod 9 to move axially and drives the push rod 10 to move within the length range of the bolt 6 tail. At this time, the end of the push rod 10 can contact the bolt 6 tail. When the bolt 6 rotates, the plane of the bolt 6 tail drives the push rod 10 to deflect, so that the bolt 6 can pass over the push rod 10 when it rotates. When the bolt 6 rotates to the point where the top plate 3 abuts against the inner wall of the bolt hole, the bolt 6 can no longer rotate. At this point, the cylindrical part 2 is hammered into the bolt hole using a hammer. Since the rotation direction of the push rod 10 is opposite to the rotation direction of the bolt 6, the bolt 6 cannot push the push rod 10 in the opposite direction when it rotates in the opposite direction, thus preventing the bolt 6 from rotating in the opposite direction and keeping the top plate 3 abutting against the bolt hole.

[0020] In a relatively specific embodiment of preventing bolt 6 from reversing, a stop 11 is fixedly installed at the end of the sliding rod 9 away from the moving ring 5-1. The stop 11 is located outside the top rod 10 and is used to limit the rotation direction of the top rod 10 to abut the tail of bolt 6.

[0021] Specifically, an elastic clip is provided between the stop block 11 and the push rod 10, so that the stop block 11 keeps the push rod 10 in a radially parallel state with the bolt 6 when it is not pushed by the tail plane of the bolt 6. When bolt 6 rotates, it causes push rod 10 to deflect. When push rod 10 deflects to an inclined state, push rod 10 can support the plane of bolt 6, so that it forms a reverse joint and prevents bolt 6 from reversing. When the push rod 10 does not deflect, the push rod 10 contacts the stop block 11. At this time, the push rod 10 cannot rotate in the opposite direction, so that the bolt 6 cannot reverse, thus preventing the bolt 6 from reversing.

[0022] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A leak-tight seal plug, characterized in that include: A conical portion (1) and a cylindrical portion (2) that rotate and engage with each other, wherein the cylindrical portion (2) is located at the tail end of the conical portion (1); Multiple top plates (3) are centrally symmetrically distributed on the conical part (1). The top plates (3) can be supported in the hole wall by radial outward displacement along the conical part (1), so as to achieve the alignment of the anti-leakage sealing plug with the bolt hole. The sliding plate (4) is set one-to-one with the top plate (3), and slides with the conical part (1) along the generatrix direction of the conical part (1). By moving towards the tail end along the generatrix direction of the conical part (1), the top plate (3) moves radially outward. The bracket (5) is axially displaceable within the tapered portion (1), and the slide plate (4) is radially slidably sleeved on the bracket (5); A connector connects the bracket (5) to the cylindrical part (2) and drives the bracket (5) to move axially when the cylindrical part (2) rotates; The sliding plate (4) and its corresponding top plate (3) slide together in the length direction of the top plate (3) so that when the top plate (3) is supported on the inner wall of the hole, the conical part (1) and the cylindrical part (2) can continue to be inserted into the bolt hole.

2. A leak-proof seal plug as claimed in claim 1, characterized in that The connector is a bolt (6), whose head is fixedly connected to the center of the cylindrical part (2), and the tail of the bolt (6) is rotatably sleeved on the center of the conical part (1); The bracket (5) includes a movable ring (5-1), which is threadedly connected to a bolt (6). By rotating the bolt (6), the movable ring (5-1) is driven to move axially.

3. A containment seal as claimed in claim 2, wherein, The support (5) also includes: A sliding rod (9) is fixedly installed on the outer wall of the moving ring (5-1), and the end of the sliding rod (9) away from the sliding ring is slidably engaged with the tapered part (1); The top rod (10) is rotatably disposed at the end of the sliding rod (9) away from the moving ring (5-1). The end of the top rod (10) away from the sliding rod (9) can contact the tail of the bolt (6). The rotation direction of the top rod (10) is opposite to the rotation direction of the bolt (6) and is used to abut the tail of the bolt (6) to prevent the bolt (6) from reversing.

4. A containment seal as claimed in claim 3, wherein, A stop (11) is fixedly installed at the end of the sliding rod (9) away from the moving ring (5-1). The stop (11) is located outside the top rod (10) and is used to limit the rotation direction of the top rod (10) to abut the tail of the bolt (6).