A type of wall sealing anti-mortar cavity that also serves as a rebar embedding component

By combining clamping rods, longitudinal fixing rods, and transverse telescopic components with clamping plates, the problem of filling the cavity at the top of the wall is solved, thereby improving the strength and seismic performance of the top of the wall and reducing maintenance costs.

CN224514425UActive Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When the wall is capped, the closed triangular cavity formed by the inclined wedge process is difficult to fill, resulting in low strength, easy hollowing, through gaps, thermal bridges and poor seismic performance, as well as high maintenance costs in the later stage.

Method used

Clamping rods, longitudinal fixing rods, and transverse expansion joints work together with the clamping plate to form a template to fill the cavity. After the mortar has initially set, it is left as a permanent support and for rebar installation, thereby enhancing the integrity and seismic performance of the wall.

Benefits of technology

It effectively eliminates cavities, improves the strength and seismic performance of the top of the wall, avoids problems such as hollowing and thermal bridging, and reduces later maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224514425U_ABST
    Figure CN224514425U_ABST
Patent Text Reader

Abstract

A wall capping anti-mortar cavity and rebar embedding component is disclosed. This invention solves the problem of mortar cavities easily occurring when the wall is inclined and wedged into the capping section. The invention includes a ceiling wall, inclined bricks, main bricks, and an embedded component. The inclined bricks are positioned between the ceiling wall and the main bricks. The embedded component is located within the ceiling wall and on the inclined bricks. The embedded component includes a clamping rod, a longitudinal fixing rod, a transverse telescopic component, and a clamping plate. The clamping rod passes through the clamping plate, which rests against the inclined bricks. A transverse telescopic component is mounted on the clamping rod, with its end resting against another inclined brick. A longitudinal fixing rod is mounted on the transverse telescopic component, with its end positioned within the ceiling wall. The clamping rod includes a screwing component, a circular clamp, a threaded rod one, an embedded rod, a threaded rod two, a threaded column, and a nut. One end of the embedded rod is threadedly connected to threaded rod one, and the end of threaded rod one is equipped with a circular clamp.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model specifically relates to a wall sealing anti-mortar cavity and rebar pre-embedded component, belonging to the field of construction. Background Technology

[0002] In the final step of masonry structure construction, when sealing the top of the wall, the "oblique wedge" technique is commonly used: first, the second to last brick is laid flat in place, and then the last brick (locking brick) is inserted obliquely and hammered to a horizontal position, using the wedge-shaped squeezing effect to improve the integrity of the wall.

[0003] However, this process naturally creates a "closed triangular area" at the top of the wall that cannot be filled with bricks. This cavity can only be filled with mortar in one go, thus presenting the following inherent drawbacks: 1. Without brick support, the filler is pure mortar, which has much lower strength and rigidity than brick, making it the weakest compression section at the top of the entire wall. 2. Operation is restricted, the space is small and the line of sight is obstructed, making it difficult to tamp the soil tightly; 3. Prone to hollowing: Slight deviation in mortar slump, or too much / too little material added at one time, will leave a cavity at the tip of the wedge. 4. Difficult to monitor: Current quality inspection methods, which rely on tapping and listening or visual inspection, cannot quantify the location and volume of cavities.

[0004] Once cavities appear in the mortar, these cavities, located at the very top of the structure, are the concentration points of vertical loads, temperature deformation, and vibration effects, inevitably causing the following problems: 1. The effective compression section is suddenly reduced, and the local compressive stress is magnified many times, which induces the crushing of the brick corner and the extension of cracks. 2. Forming "through joints" or "blind joints" that run through the mortar joints, rainwater, moisture, and frost heave media seep in along the joints, accelerating the corrosion of steel bars and causing bricks to freeze, crack, and peel off; 3. It weakens the integrity of the wall top, creating a "whiplash effect" under earthquake and wind loads, increasing the risk of collapse; 4. It can become a thermal bridging element, leading to condensation, mold, and peeling of finishes at ceiling corners. 5. If the cavity is located under the parapet wall, the accumulated water may freeze and expand, potentially causing objects to fall from a height.

[0005] Due to the unique location of the cavity, the difficulty in detection, and the need for scaffolding for repair, the cost of subsequent treatment is far higher than that of ordinary wall hollowing. Therefore, there is an urgent need for a technical solution that can eliminate the cavity during the construction phase or efficiently and cost-effectively repair the cavity in the existing structure to solve the aforementioned problems of structural safety, functionality, and subsequent maintenance. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, a wall sealing anti-mortar cavity and rebar embedding component is provided to solve the above problems.

[0007] A wall sealing anti-mortar cavity and rebar embedding component includes a ceiling wall, inclined bricks, main bricks, and embedded components. The inclined bricks are placed between the ceiling wall and the main bricks, and the embedded components are placed inside the ceiling wall and on the inclined bricks. The embedded components include a clamping rod, a longitudinal fixing rod, a transverse expansion member, and a clamping plate. The clamping rod passes through the clamping plate, the clamping plate abuts against the inclined bricks, and the clamping rod abuts against the inclined bricks. A transverse expansion member is provided on the clamping rod, and the end of the transverse expansion member abuts against another inclined brick. A longitudinal fixing rod is provided on the transverse expansion member, and the end of the longitudinal fixing rod is placed inside the ceiling wall.

[0008] As a preferred embodiment: the clamping rod includes a screwing component, a circular clamp, a threaded rod one, a pre-embedded rod, a threaded rod two, a threaded post, and a nut. One end of the pre-embedded rod is threadedly connected to the threaded rod one. The end of the threaded rod one is provided with a circular clamp. One side of the circular clamp is attached to the inclined brick. The other side of the circular clamp is provided with a screwing component. The other end of the pre-embedded rod is threadedly connected to the threaded rod two. The end of the threaded rod two is provided with a threaded post. The threaded post is threadedly connected to the nut. The nut is attached to the clamping plate, and the threaded post passes through the clamping plate.

[0009] As a preferred embodiment: the embedded rod is equipped with a transverse expansion joint, which includes a connector, a threaded rod three, an internally threaded screw ring, an expansion tube, and a rubber head. One end of the connector is set on the outer wall of the embedded rod, and the other end of the connector is equipped with a threaded rod three. The threaded rod three passes through the internally threaded screw ring, and the internally threaded screw ring is threadedly connected to the threaded rod three. The internally threaded screw ring is hinged at the end of the expansion tube, and the threaded rod three passes through the expansion tube. The end of the expansion tube is equipped with a rubber head, which abuts against the inclined brick.

[0010] As a preferred embodiment: the connector is provided with a longitudinal fixing rod, which includes a connecting short rod, a hexagonal screw-on component, a threaded rod four, and a fixing rod. One end of the connecting short rod is set on the connector, and the other end of the connecting short rod is machined with a hinge groove. The threaded rod four is hinged in the hinge groove. The hexagonal screw-on component is fitted onto the threaded rod four, and the hexagonal screw-on component is fixedly connected to the threaded rod four to form a whole. The threaded rod four passes through the fixing rod, and the fixing rod is threadedly connected to the threaded rod four. The fixing rod is set inside the ceiling wall.

[0011] As a preferred embodiment: the clamping plate includes a sealing plate and a transparent film. The transparent film is provided on the sealing plate and is attached to the inclined brick. The sealing plate has a strip hole processed along its thickness direction. A threaded post is inserted into the strip hole and a nut is attached to the sealing plate.

[0012] The beneficial effects of this utility model are as follows: This utility model utilizes the coordinated operation of clamping rods, longitudinal fixing rods, and transverse expansion joints with clamping plates. When filling mortar, the clamping plates first form a single-sided template to prevent mortar from overflowing and eliminate cavities. After the mortar has initially set, the clamping plates are removed, leaving the clamping rods, longitudinal fixing rods, and transverse expansion joints inside the mortar. These components serve as permanent supports for the inclined bricks and also act as reinforcing bars, forming a top reinforcing band with the solidified mortar. Consequently, the integrity and seismic performance of the ceiling wall and the inclined bricks are significantly improved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention in use. Figure 2 This is a rear-view three-dimensional structural diagram of the present invention in its usage state; Figure 3 This is a schematic diagram of the three-dimensional structure of the embedded part; Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping rod; Figure 5 This is a three-dimensional structural diagram of the longitudinal fixing rod; Figure 6 This is a schematic diagram of a half-section three-dimensional structure of the longitudinal fixing rod; Figure 7 This is a three-dimensional structural diagram of the lateral expansion joint; Figure 8 This is a schematic diagram of a half-section three-dimensional structure of a lateral expansion joint; Figure 9 This is a schematic diagram of the three-dimensional structure of the clamping plate.

[0014] In the diagram: 1- Ceiling wall; 2- Slanted bricks; 3- Main bricks; 4- Embedded parts; 4-1- Clamping rod; 4-11- Tightening parts; 4-12- Circular clips; 4-13- Threaded rod one; 4-14- Embedded rod; 4-15- Threaded rod two; 4-16- Threaded column; 4-17- Nut; 4-2- Longitudinal fixing rod; 4-21- Connecting short rod; 4-211- Hinge groove; 4-22- Hexagonal tightening parts; 4-23- Threaded rod four; 4-24- Fixing rod; 4-3- Lateral telescopic parts; 4-31- Connecting parts; 4-32- Threaded rod three; 4-33- Internal threaded tightening ring; 4-34- Telescopic tube; 4-35- Rubber head; 4-4- Clamping plate; 4-41- Sealing plate; 4-411- Strip hole; 4-42- Transparent film. Detailed Implementation

[0015] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0016] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 This embodiment describes a wall sealing anti-mortar cavity and rebar embedding component, which includes a ceiling wall 1, inclined bricks 2, main bricks 3, and an embedded component 4. The inclined bricks 2 are placed between the ceiling wall 1 and the main bricks 3. The embedded component 4 is placed inside the ceiling wall 1 and on the inclined bricks 2. The embedded component 4 includes a clamping rod 4-1, a longitudinal fixing rod 4-2, a transverse telescopic component 4-3, and a clamping plate 4-4. The clamping rod 4-1 passes through the clamping plate 4-4, and the clamping plate 4-4 abuts against the inclined bricks 2. The clamping rod 4-1 is provided with a transverse telescopic component 4-3, the end of which abuts against another inclined brick 2. The transverse telescopic component 4-3 is provided with a longitudinal fixing rod 4-2, the end of which is placed inside the ceiling wall 1.

[0017] Drill holes at the corresponding positions on the ceiling wall 1, inject anchoring adhesive into the holes, and then quickly insert the top of the longitudinal fixing rod 4-2 into the holes, keeping it vertical, and let it stand until the adhesive is completely cured. After the longitudinal fixing rod 4-2 is secure, adjust the overall length so that the clamping rod 4-1 is in close contact with the outer surface of the inclined brick 2; then operate the transverse expansion member 4-3, so that its end is pressed against the opposite inclined brick 2. Through the triangular constraint formed by the clamping rod 4-1, the longitudinal fixing rod 4-2 and the transverse expansion member 4-3, the inclined bricks 2 on both sides are brought closer together, squeezing the mortar and improving the fullness of the bonding surface. Take the clamping plate 4-4 and insert it through the exposed end of the clamping rod 4-1, so that the inner surface of the clamping plate 4-4 is in close contact with the inclined brick 2, forming a single-sided closed template. At this time, fill the mortar layer by layer from the opening. The mortar will not leak out due to the obstruction of the clamping plate 4-4. Compact each layer until the gap is full. Before the mortar sets, the clamping plate 4-4 is removed, and the clamping rod 4-1, longitudinal fixing rod 4-2 and transverse expansion member 4-3 are left in the mortar. They serve as permanent support for the inclined brick 2 and also play the role of rebar installation. Together with the mortar, they form a top reinforcement strip, which effectively improves the integrity and seismic performance of the ceiling wall 1 and the inclined brick 2.

[0018] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. The clamping rod 4-1 includes a screwing component 4-11, a circular clamping component 4-12, a threaded rod one 4-13, a pre-embedded rod 4-14, a threaded rod two 4-15, a threaded post 4-16, and a nut 4-17. One end of the pre-embedded rod 4-14 is threadedly connected to the threaded rod one 4-13. The end of the threaded rod one 4-13 is provided with a circular clamping component 4-12. One side of the circular clamping component 4-12 is attached to the inclined brick 2. The other side of the circular clamping component 4-12 is provided with a screwing component 4-11. The other end of the pre-embedded rod 4-14 is threadedly connected to the threaded rod two 4-15. The end of the threaded rod two 4-15 is provided with a threaded post 4-16. The threaded post 4-16 is threadedly connected to the nut 4-17. The nut 4-17 is attached to the clamping plate 4-4. The threaded post 4-16 passes through the clamping plate 4-4.

[0019] The threaded rod 4-15 is installed at one end of the pre-embedded rod 4-14 by means of threaded connection. The clamping plate 4-4 is inserted on the threaded post 4-16. Then, the nut 4-17 is installed on the threaded post 4-16. The nut 4-17 is rotated to make the nut 4-17 press the clamping plate 4-4, so that the clamping plate 4-4 is against the inclined brick 2.

[0020] The other end of the pre-embedded rod 4-14 is connected to the threaded rod 4-13 by a threaded connection, and the screwing part 4-11 is rotated to make the circular clamp 4-12 abut against the other side of the inclined brick 2, so that the clamping rod 4-1 clamps the inclined brick 2, thereby fixing the position of the clamping plate 4-4 and sealing one side of the inclined brick 2.

[0021] After the mortar is filled, rotate threaded rod 4-15 and threaded rod 4-13 respectively to remove the parts at both ends of the embedded rod 4-14, so that the embedded rod 4-14 is completely embedded in the mortar, thus achieving the purpose of planting reinforcement and supporting the inclined brick 2.

[0022] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 1 or 2. A transverse telescopic component 4-3 is provided on the embedded rod 4-14. The transverse telescopic component 4-3 includes a connector 4-31, a threaded rod 4-32, an internal threaded screw ring 4-33, a telescopic tube 4-34, and a rubber head 4-35. One end of the connector 4-31 is provided on the outer wall of the embedded rod 4-14, and the other end of the connector 4-31 is provided with a threaded rod 4-32. The threaded rod 4-32 passes through the internal threaded screw ring 4-33, and the internal threaded screw ring 4-33 is threadedly connected to the threaded rod 4-32. The internal threaded screw ring 4-33 is hinged at the end of the telescopic tube 4-34, and the threaded rod 4-32 passes through the telescopic tube 4-34. A rubber head 4-35 is provided at the end of the telescopic tube 4-34, and the rubber head 4-35 abuts against the inclined brick 2.

[0023] Rotate the internal threaded screw ring 4-33, which is threadedly connected to the threaded rod 4-32. This causes the internal threaded screw ring 4-33 to move along the direction of the threaded rod 4-32, thereby pushing the telescopic tube 4-34 to move. This causes the rubber head 4-35 to abut against the inclined brick 2. The increased elasticity of the rubber head 4-35 increases the friction with the inclined brick 2, giving the inclined brick 2 a stable lateral thrust, squeezing the mortar, and making the bonding surface fuller.

[0024] Specific Implementation Method Four: This implementation method further defines Specific Implementation Methods One, Two, or Three. A longitudinal fixing rod 4-2 is provided on the connecting member 4-31. The longitudinal fixing rod 4-2 includes a connecting short rod 4-21, a hexagonal screwing part 4-22, a threaded rod 4-23, and a fixing rod 4-24. One end of the connecting short rod 4-21 is provided on the connecting member 4-31, and the other end of the connecting short rod 4-21 is machined with a hinge groove 4-211. The threaded rod 4-23 is hinged in the hinge groove 4-211. The hexagonal screwing part 4-22 is fitted onto the threaded rod 4-23. The hexagonal screwing part 4-22 and the threaded rod 4-23 are fixedly connected to each other to form a whole. The threaded rod 4-23 passes through the fixing rod 4-24. The fixing rod 4-24 is threadedly connected to the threaded rod 4-23. The fixing rod 4-24 is provided inside the ceiling wall 1.

[0025] Hold the fixed connecting short rod 4-21 and rotate the hexagonal screwing part 4-22. The hexagonal screwing part 4-22 drives the threaded rod 4-23 to rotate. The threaded rod 4-23 is threadedly connected to the fixed rod 4-24. Since the fixed rod 4-24 is fixed on the ceiling wall 1, the threaded rod 4-23 extends outward as it rotates, so that the clamping rod 4-1 is against the inclined brick 2.

[0026] Specific Implementation Method 5: This implementation method is a further limitation of Specific Implementation Methods 1, 2, 3 or 4. The clamping plate 4-4 includes a sealing plate 4-41 and a transparent film 4-42. The transparent film 4-42 is provided on the sealing plate 4-41 and abuts against the inclined brick 2. The sealing plate 4-41 has a strip hole 4-411 processed along its thickness direction. A threaded post 4-16 passes through the strip hole 4-411. The nut 4-17 abuts against the sealing plate 4-41.

[0027] The relative position of the sealing plate 4-41 and the clamping rod 4-1 can be adjusted through the strip hole 4-411, thereby adjusting the position of the sealing plate 4-41. The transparent film 4-42 can isolate the mortar from the sealing plate 4-41. Before the mortar initially sets, the sealing plate 4-41 can be removed without affecting the flatness of the mortar.

[0028] Working principle: When the main brick 3 is laid to the top, it is necessary to switch to laying the inclined bricks 2 one by one at an angle. When the inclined bricks 2 are laid to the end, the remaining space is difficult to fill with traditional grouting methods. Therefore, the clamping components 4 are used for temporary fixation and subsequent reinforcement with rebar.

[0029] Drill holes at the corresponding positions on the ceiling wall 1, with the hole diameter slightly larger than the diameter of the longitudinal fixing rod 4-2 and the hole depth not less than one-third of the rod length; inject anchoring adhesive into the holes until the adhesive slightly overflows, then quickly insert the top of the longitudinal fixing rod 4-2 into the holes and keep it vertical, and let it stand until the adhesive is completely cured.

[0030] After the longitudinal fixing rod 4-2 is firmly secured, adjust the overall length so that the clamping rod 4-1 is in close contact with the outer surface of the inclined brick 2; then operate the transverse telescopic component 4-3 so that its end is pressed against the opposite inclined brick 2. Through the triangular constraint formed by the clamping rod 4-1, the longitudinal fixing rod 4-2 and the transverse telescopic component 4-3, the inclined bricks 2 on both sides are brought closer together, squeezing the mortar and improving the fullness of the bonding surface.

[0031] Insert clamping plate 4-4 through the exposed end of clamping rod 4-1, so that the inner surface of clamping plate 4-4 is tightly against the inclined brick 2, forming a single-sided closed template. At this time, fill the opening with mortar in layers. The mortar will not leak out due to the obstruction of clamping plate 4-4. Tamp each layer until the gap is full.

[0032] Before the mortar sets, the clamping plate 4-4 is removed, and the clamping rod 4-1, longitudinal fixing rod 4-2 and transverse expansion member 4-3 are left in the mortar. They serve as permanent support for the inclined brick 2 and also play the role of rebar installation. Together with the mortar, they form a top reinforcement strip, which effectively improves the integrity and seismic performance of the ceiling wall 1 and the inclined brick 2.

Claims

1. A wall sealing mortar cavity and rebar embedding component, characterized in that: It includes a ceiling wall (1), inclined bricks (2), main bricks (3) and embedded parts (4). The inclined bricks (2) are set between the ceiling wall (1) and the main bricks (3). The embedded parts (4) are set inside the ceiling wall (1) and on the inclined bricks (2). The embedded part (4) includes a clamping rod (4-1), a longitudinal fixing rod (4-2), a transverse telescopic member (4-3), and a clamping plate (4-4). The clamping rod (4-1) passes through the clamping plate (4-4). The clamping plate (4-4) is attached to the inclined brick (2). The clamping rod (4-1) is attached to the inclined brick (2). A transverse telescopic member (4-3) is provided on the clamping rod (4-1). The end of the transverse telescopic member (4-3) is attached to another inclined brick (2). A longitudinal fixing rod (4-2) is provided on the transverse telescopic member (4-3). The end of the longitudinal fixing rod (4-2) is located inside the ceiling wall (1).

2. The wall capping sand control mortar cavity and embedded steel bar planting piece according to claim 1, characterized in that: The clamping rod (4-1) includes a screwing component (4-11), a circular clamp (4-12), a threaded rod one (4-13), a pre-embedded rod (4-14), a threaded rod two (4-15), a threaded post (4-16), and a nut (4-17). One end of the pre-embedded rod (4-14) is threadedly connected to the threaded rod one (4-13). The end of the threaded rod one (4-13) is provided with a circular clamp (4-12), and one side of the circular clamp (4-12) abuts against... On the inclined brick (2), a screwing part (4-11) is provided on the other side of the circular clamp (4-12). The other end of the embedded rod (4-14) is threadedly connected to the threaded rod two (4-15). The end of the threaded rod two (4-15) is provided with a threaded post (4-16). The threaded post (4-16) is threadedly connected to the nut (4-17). The nut (4-17) is attached to the clamp plate (4-4). The threaded post (4-16) is inserted into the clamp plate (4-4).

3. The wall capping sand control mortar cavity and embedded bar planting piece according to claim 2, characterized in that: The embedded rod (4-14) is equipped with a transverse expansion joint (4-3). The transverse expansion joint (4-3) includes a connector (4-31), a threaded rod (4-32), an internally threaded screw ring (4-33), a telescopic tube (4-34), and a rubber head (4-35). One end of the connector (4-31) is located on the outer wall of the embedded rod (4-14), and the other end of the connector (4-31) is equipped with a threaded rod (4-32). The third (4-32) is inserted into the internal threaded screw ring (4-33). The internal threaded screw ring (4-33) is threadedly connected to the third (4-32) threaded rod. The internal threaded screw ring (4-33) is hinged at the end of the telescopic tube (4-34). The third (4-32) threaded rod is inserted into the telescopic tube (4-34). The end of the telescopic tube (4-34) is provided with a rubber head (4-35). The rubber head (4-35) is attached to the inclined brick (2).

4. The wall capping sand control mortar cavity and embedded bar planting piece according to claim 3, characterized in that: The connector (4-31) is provided with a longitudinal fixing rod (4-2). The longitudinal fixing rod (4-2) includes a connecting short rod (4-21), a hexagonal screwing part (4-22), a threaded rod four (4-23), and a fixing rod (4-24). One end of the connecting short rod (4-21) is provided on the connector (4-31), and the other end of the connecting short rod (4-21) is machined with a hinge groove (4-211). The threaded rod four (4-23) is hinged in the hinge groove (4-211). The threaded rod four (4-23) is fitted with a hexagonal screwing part (4-22). The hexagonal screwing part (4-22) and the threaded rod four (4-23) are fixedly connected to each other to form a whole. The threaded rod four (4-23) passes through the fixing rod (4-24). The fixing rod (4-24) is threadedly connected to the threaded rod four (4-23). ​​The fixing rod (4-24) is provided in the ceiling wall (1).

5. The wall capping sand control mortar cavity and embedded bar planting piece according to claim 2, characterized in that: The clamp (4-4) includes a sealing plate (4-41) and a transparent membrane (4-42). The transparent membrane (4-42) is provided on the sealing plate (4-41) and is attached to the inclined brick (2). The sealing plate (4-41) has a strip hole (4-411) along its thickness direction. A threaded post (4-16) is inserted into the strip hole (4-411), and a nut (4-17) is attached to the sealing plate (4-41).