Separated cement cushion block fastener

Abstract

The utility model discloses a separated cement cushion block fastener, and belongs to the technical field of building construction. The separated cement cushion block fastener comprises a rectangular piece and an elastic piece which is arranged on one side of the rectangular piece and integrally formed with the rectangular piece. The opening is formed between the rectangular piece and the elastic piece and used for allowing a reinforcing steel bar to enter; the elastic clamping groove is formed between the rectangular piece and the elastic piece, communicates with the opening and is used for clamping the reinforcing steel bar; the cement cushion block is poured on the face, away from the opening, of the rectangular piece, located at the bottom of the side, away from the elastic piece, of the rectangular piece and used for being disassembled and assembled with a formwork. According to the separation type cement cushion block fastener, due to the design of the rectangular piece, the elastic piece, the opening and the elastic clamping groove, a steel bar can be easily and stably fixed, the installation process is greatly simplified, meanwhile, due to the design of the cement cushion block and the screw hole, connection and disassembly of the fastener and a formwork are easy and fast, the defect that a traditional plastic cushion block is exposed is overcome, and the service life of the fastener is prolonged. Therefore, the plastering difficulty is reduced.

Description

A type of split cement block fastener Technical Field

[0001] This application relates to the field of building construction technology, specifically a separable cement block fastener. Background Technology

[0002] With the rapid development of the construction industry, the requirements for construction efficiency, material performance, and processes are constantly increasing. Especially in the construction of prefabricated steel truss floor slabs, the fixing of the reinforcing bars and the connection with the formwork are key links to ensure structural stability and construction quality.

[0003] Chinese utility model patent CN221664012U discloses a steel truss floor deck connector. It uses fasteners to detachably connect the steel truss to the wooden formwork, allowing the formwork to be reused. However, this connector is made entirely of molded plastic and directly fixed to the formwork. Due to the smooth surface of the plastic, the adhesion between the plastic and concrete is poor, making it easy for the connector to separate from the concrete, thus affecting the overall structural integrity. Furthermore, after the formwork is removed, the plastic connector is directly exposed, but its surface remains smooth, making it difficult for plaster to adhere firmly, leading to peeling or cracking, increasing the difficulty of plastering.

[0004] Therefore, this application provides a separable cement block fastener to solve the above problems. Summary of the Invention

[0005] This application provides a separable cement pad fastener, which aims to solve the problems mentioned in the background art, such as the fact that the existing steel truss floor deck connectors are usually made of plastic, which easily leads to poor adhesion with concrete, and the plaster is difficult to adhere after disassembly, affecting the integrity of the structure and increasing the difficulty of construction.

[0006] To achieve the above objectives, this application provides the following technical solution: a separable cement block fastener, comprising a rectangular component, an elastic component disposed on one side of the rectangular component and integrally formed with the rectangular component, an opening disposed between the rectangular component and the elastic component for allowing a reinforcing bar to enter, and an elastic groove disposed between the rectangular component and the elastic component and communicating with the opening for engaging the reinforcing bar.

[0007] The detachable cement pad fastener also includes a cement pad cast on the side of the rectangular member away from the opening and located at the bottom of the side of the rectangular member away from the elastic member for disassembly and assembly with the formwork, and screw holes opened on the cement pad for screw connection to fix the cement pad to the formwork. The combined design of the rectangular member, elastic member, opening and elastic groove allows the reinforcing bars to be easily inserted and firmly fixed through the elastic groove without the need for additional binding tools, greatly simplifying the installation process of the reinforcing bars and significantly improving construction efficiency. The combined design of the cement pad and screw holes makes the connection and disassembly of the fastener with the formwork simple and quick, further improving construction efficiency. The cement pad can form a unified load-bearing structure after the new concrete is bonded, replacing the defects of traditional plastic pads that are exposed, avoiding the problem of poor adhesion between plastic and concrete. At the same time, the design of the cement pad allows the fastener to be integrated with the concrete after the new concrete has solidified. After demolding, only the screw holes need to be treated, simplifying the plastering process and preventing plastering difficulties caused by the exposure of the rectangular member and elastic member, thus improving the flatness and aesthetics of the wall surface.

[0008] Preferably, to ensure the elasticity of the elastic element, both the rectangular element and the elastic element are made of plastic and have a hollow structure. Plastic has advantages such as light weight, corrosion resistance, and ease of processing. Its corrosion resistance also extends the service life of the fastener. At the same time, plastic also has a certain degree of elasticity, which helps the elastic element to better perform its elastic snap-fit ​​function. The hollow structure design of both the rectangular element and the elastic element reduces the amount of solid material used. While ensuring the basic function and performance of the fastener, it reduces the cost of raw materials, improves the material utilization rate, and conforms to the concept of green environmental protection and sustainable development.

[0009] Preferably, to facilitate the clamping of the reinforcing bars, the elastic clamping groove includes a through groove formed between the rectangular member and the elastic member and communicating with the opening for the movement of the reinforcing bar, a circular groove formed between the rectangular member and the elastic member and communicating with the end of the through groove away from the opening for clamping the reinforcing bar, and limiting protrusions symmetrically fixed on both sides inside the through groove. The through groove design facilitates the reinforcing bar to enter from the opening and move to the position of the circular groove, while the circular groove provides a stable clamping for the reinforcing bar. This phased design makes the installation process of the reinforcing bar smoother and also ensures the stability of the reinforcing bar during the concrete pouring process. At the same time, the limiting protrusions symmetrically fixed on both sides inside the through groove can effectively prevent the reinforcing bar from sliding out of the opening after entering the through groove. When the reinforcing bar moves in the through groove, the limiting protrusions will block the reinforcing bar, ensuring that the reinforcing bar can only move along the through groove towards the circular groove, further ensuring the stability and reliability of the reinforcing bar installation.

[0010] Preferably, to ensure the secure connection of the reinforcing bars, the width of the through groove near the circular groove is smaller than the width of the through groove near the opening. The wider end of the through groove near the opening provides a larger entry space for the reinforcing bars, allowing them to be easily placed into the through groove. As the reinforcing bars penetrate deeper into the through groove, the width of the through groove gradually decreases until it reaches its minimum at the circular groove. This gradual width design allows the reinforcing bars to be gradually guided into the circular groove after entering the through groove, where they are securely connected. At the same time, the narrow opening design of the through groove near the circular groove acts as a limit, effectively preventing the reinforcing bars from slipping out of the through groove due to vibration or external forces during concrete pouring. This design enhances the fixing effect of the fastener on the reinforcing bars and improves the stability and safety of the structure.

[0011] Preferably, to facilitate the secure clamping of the reinforcing bars, the diameter of the circular groove is larger than the width of the through groove near the circular groove end, and the diameter of the circular groove is smaller than the width of the through groove near the opening end. Because the diameter of the circular groove is smaller than the width of the through groove near the opening end, the reinforcing bar, after entering the through groove from the opening, will be guided along the gradually narrowing path of the through groove to the circular groove. This design makes the installation process of the reinforcing bars smoother and reduces installation difficulties caused by unclear paths or jamming. Furthermore, the larger diameter of the circular groove ensures that the reinforcing bar can be securely clamped after reaching the circular groove. This design prevents the reinforcing bars from shifting due to vibration or external forces during concrete pouring, thereby ensuring the stability and safety of the structure.

[0012] Preferably, in order to reduce the difficulty of plastering, the side of the cement pad away from the rectangular part is flat. The flat design allows the cement pad to fit more tightly with the template when in contact, improving the stability of the connection. At the same time, after the concrete is poured, the flat cement pad makes the surface of the wall area where the cement pad is located highly flat after demolding, reducing the difficulty of plastering.

[0013] Preferably, to ensure the installation of the fastener and the template, a threaded post communicating with the screw hole is fixedly provided inside the rectangular part, and a reinforcing rib I, integrally formed with the rectangular part and distributed in a ring, is fixedly provided on the outside of the threaded post; the threaded post communicating with the screw hole provides a dedicated connection point for the screw. When the screw passes through the hole on the template and the screw hole and is screwed into the threaded post, the thread structure of the threaded post can tightly engage with the screw, ensuring a firm connection of the screw and improving the stability of the connection between the fastener and the template. The setting of the reinforcing rib I enhances the connection strength between the threaded post and the rectangular part, preventing loosening or breakage during long-term use or under stress.

[0014] Preferably, in order to ensure the structural strength of the elastic element and prevent the reinforcing bar from entering the hollow structure of the elastic element from the circular groove, a second reinforcing rib is fixedly provided on the side of the elastic element near the circular groove. The design of the second reinforcing rib increases the rigidity of the elastic element, prevents the elastic element from deforming, twisting or even breaking at this point, and at the same time ensures a tight connection between the reinforcing bar and the circular groove, preventing the reinforcing bar from entering the hollow structure of the elastic element and maintaining the stability of the connection.

[0015] This split-type cement block fastener, through the combined design of rectangular parts, elastic parts, openings and elastic slots, allows the reinforcing bars to be easily inserted and securely fixed through the elastic slots, eliminating the need for additional binding tools, greatly simplifying the installation process of the reinforcing bars and significantly improving construction efficiency.

[0016] This separable cement block fastener, through its combination of cement blocks and screw holes, simplifies and extricates the fastener from the formwork, further improving construction efficiency. The cement blocks form a unified load-bearing structure after bonding with the new concrete, replacing the exposed defects of traditional plastic blocks and avoiding the problem of poor adhesion between plastic and concrete. At the same time, the fastener integrates with the concrete after it hardens, requiring only the screw holes to be treated after demolding. The surface of the wall area is also highly flat, reducing plastering difficulty and preventing plastering difficulties caused by exposed rectangular and elastic components, thus improving the flatness and aesthetics of the wall surface.

[0017] This split-type cement block fastener, by employing hollowed-out rectangular and elastic components, reduces the amount of solid material used in these components. While ensuring the fastener's basic functionality and performance, it lowers raw material costs, improves material utilization, and aligns with the principles of green environmental protection and sustainable development. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the application structure of a separable cement block fastener;

[0019] Figure 2 is a structural schematic diagram of a separable cement block fastener;

[0020] Figure 3 is a schematic diagram of the elastic groove in a split cement block fastener.

[0021] In the picture:

[0022] 1. Rectangular component; 11. Threaded column; 12. Reinforcing rib 1;

[0023] 2. Elastic component; 21. Reinforcing rib II;

[0024] 3. Opening;

[0025] 4. Elastic groove; 41. Through groove; 42. Circular groove; 43. Limiting protrusion;

[0026] 5. Cement spacers;

[0027] 6. Screw holes. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] This embodiment provides a separable cement block fastener, as shown in Figures 1-3. The separable cement block fastener includes a rectangular component 1, an elastic component 2 integrally formed with the rectangular component 1 and disposed on one side of the rectangular component 1, an opening 3 between the rectangular component 1 and the elastic component 2 for allowing the reinforcing bar to enter, and an elastic groove 4 between the rectangular component 1 and the elastic component 2 and communicating with the opening 3 for clamping the reinforcing bar. The separable cement block fastener also includes a cement block 5 cast on the side of the rectangular component 1 away from the opening 3 and located at the bottom of the side of the rectangular component 1 away from the elastic component 2 for disassembly and assembly with the template, and screw holes 6 opened on the cement block 5 for screw connection to fix the cement block 5 to the template.

[0030] To ensure the elasticity of the elastic component 2, both rectangular component 1 and elastic component 2 are made of plastic and have a hollow structure. Plastic has advantages such as light weight, corrosion resistance, and ease of processing. Its corrosion resistance also extends the service life of the fastener. At the same time, plastic also has a certain degree of elasticity, which helps the elastic component 2 to better perform its elastic snap-fit ​​function. The hollow structure design of both rectangular component 1 and elastic component 2 reduces the amount of solid material used. While ensuring the basic function and performance of the fastener, it reduces the cost of raw materials, improves the material utilization rate, and conforms to the concept of green environmental protection and sustainable development.

[0031] It should be noted that screw hole 6 has a chamfered design, which reduces screwing resistance, allowing a single person to complete the operation and reducing manual labor intensity.

[0032] In use, first, attach the cement block 5 to the template, then pass the screw through the template and screw it into the screw hole 6 on the cement block 5. Tighten the screw to fix the cement block 5 to the template. Since the rectangular part 1 and the elastic part 2 are integrally formed and the rectangular part 1 is connected to the cement block 5, the entire fastener can be fixed to the template after the cement block 5 is installed. Next, due to the elasticity of the elastic part 2, the operator manually pulls the elastic part 2 to widen the opening 3, and then pushes the reinforcing bar into the elastic groove 4 from the opening 3. Immediately afterward, after releasing the elastic part 2, the elastic part 2 resets, and the reinforcing bar will be directly and firmly locked in the elastic groove 4 without the need for binding tools. After the reinforcing bar is secured, the new concrete pouring can begin. Concrete covers the fasteners and formwork. Cement blocks 5 will come into contact with the newly poured concrete. Since cement blocks 5 and new concrete are made of the same material, they form an integrated structure after solidification, avoiding the interface adhesion problem of traditional plastic blocks. After the newly poured concrete has solidified to the demolding strength, the operator manually unscrews the screws and tightens them directly into the screw holes 6. The formwork can then be removed from the cement blocks 5. At this point, the cement blocks 5 are completely bonded to the new concrete and remain in the structure. Meanwhile, the rectangular parts 1 and elastic parts 2 are hidden inside the poured new concrete. After demolding, only the screw holes 6 are exposed. Finally, the operator fills the screw holes 6 with cement mortar. Since the surface of the cement blocks 5 is flat, plastering can be carried out after filling.

[0033] Specifically, the elastic groove 4 includes a through groove 41 opened between the rectangular member 1 and the elastic member 2 and connected to the opening 3 for moving the reinforcing bar, a circular groove 42 opened between the rectangular member 1 and the elastic member 2 and connected to the end of the through groove 41 away from the opening 3 for clamping the reinforcing bar, and limiting protrusions 43 symmetrically fixed on both sides inside the through groove 41.

[0034] In addition, to ensure the secure connection of the reinforcing bars, the width of the end of the through groove 41 near the circular groove 42 is smaller than the width of the end of the through groove 41 near the opening 3. The wider end of the through groove 41 near the opening 3 provides a larger space for the reinforcing bars to enter, allowing them to be easily placed into the through groove 41. As the reinforcing bars go deeper into the through groove 41, the width of the through groove 41 gradually decreases until it reaches its minimum at the circular groove 42. This gradual width design allows the reinforcing bars to be gradually guided to the circular groove 42 after entering the through groove 41, where they are securely connected. At the same time, the narrow opening design of the through groove 41 near the circular groove 42 acts as a limit, effectively preventing the reinforcing bars from slipping out of the through groove 41 during concrete pouring due to vibration or external force. This design enhances the fixing effect of the fastener on the reinforcing bars and improves the stability and safety of the structure.

[0035] Furthermore, in order to ensure the structural strength of the elastic element 2 and to prevent the reinforcing bar from entering the hollow structure of the elastic element 2 from the circular groove 42, a reinforcing rib 21 is fixedly provided on the side of the elastic element 2 near the circular groove 42. The design of the reinforcing rib 21 increases the rigidity of the elastic element 2, prevents the elastic element 2 from deforming, twisting or even breaking at this point, and at the same time ensures the tight connection between the reinforcing bar and the circular groove 42, prevents the reinforcing bar from entering the hollow structure of the elastic element 2, and maintains the stability of the connection.

[0036] Understandably, to facilitate the secure clamping of the reinforcing bars, the diameter of the circular groove 42 is larger than the width of the through groove 41 near the end of the circular groove 42, while the diameter of the circular groove 42 is smaller than the width of the through groove 41 near the opening 3. Because the diameter of the circular groove 42 is smaller than the width of the through groove 41 near the opening 3, after the reinforcing bar enters the through groove 41 from the opening 3, it will be guided to the circular groove 42 along the gradually narrowing path of the through groove 41. This design makes the installation process of the reinforcing bars smoother and reduces installation difficulties caused by unclear paths or jamming. The diameter of the circular groove 42 is larger than the width of the through groove 41 near the end of the circular groove 42, ensuring that the reinforcing bar can be securely clamped after reaching the circular groove 42. This design prevents the reinforcing bars from shifting due to vibration or external forces during concrete pouring, thereby ensuring the stability and safety of the structure.

[0037] After the cement block 5 and the formwork are fixed, and the entire fastener is installed on the formwork, when it is necessary to fix the reinforcing bar, first, under the action of external force, the elastic element 2 is slightly deformed outward to widen the opening 3 so that the reinforcing bar can enter the opening 3. Then, the reinforcing bar is inserted into the through groove 41 through the opening 3 and moves along the through groove 41 towards the circular groove 42. Because the through groove 41 is designed with a gradually changing width, when the reinforcing bar enters the through groove 41 through the opening 3, it first passes through the wide end of the through groove 41 and then moves to the narrow end. When the reinforcing bar moves to the narrow end of the through groove 41, Because the reinforcing bar will further compress the elastic element 2, the width of the narrow end of the through groove 41 will temporarily expand. After the reinforcing bar enters the circular groove 42, the elastic element 2 will reset, and the width of the narrow end of the through groove 41 will also recover synchronously, thus limiting the reinforcing bar. At the same time, the inner wall of the circular groove 42 is in close contact with the circumference of the reinforcing bar to fix the reinforcing bar through elastic clamping force. Furthermore, when the reinforcing bar moves in the through groove 41, the limiting protrusion 43 will block the reinforcing bar, ensuring that the reinforcing bar can only move along the through groove 41 towards the circular groove 42, further ensuring the stability and reliability of the reinforcing bar installation. Furthermore, the side of the cement block 5 away from the rectangular element 1 is flat. The flat design allows the cement block 5 to fit more tightly with the formwork when in contact, improving the stability of the connection. At the same time, after the concrete is poured, the flat cement block 5 ensures a high degree of surface flatness in the wall area where the cement block 5 is located after demolding, reducing the difficulty of plastering.

[0038] Furthermore, a threaded post 11 communicating with the screw hole 6 is fixedly provided inside the rectangular part 1, and reinforcing ribs 12, which are distributed in a ring and integrally formed with the rectangular part 1, are fixedly provided on the outside of the threaded post 11. The threaded post 11 communicates with the screw hole 6, providing a dedicated connection point for the screw. When the screw passes through the hole on the template and the screw hole 6 and is screwed into the threaded post 11, the thread structure of the threaded post 11 can tightly engage with the screw, ensuring a firm connection of the screw and improving the stability of the connection between the fastener and the template. The setting of the reinforcing ribs 12 enhances the connection strength between the threaded post 11 and the rectangular part 1, preventing loosening or breakage during long-term use or under stress.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A detachable cement block fastener, characterized in that: The fastener includes a rectangular component (1), an elastic component (2) integrally formed with the rectangular component (1) on one side, an opening (3) between the rectangular component (1) and the elastic component (2) for allowing the reinforcing bar to enter, and an elastic groove (4) between the rectangular component (1) and the elastic component (2) and communicating with the opening (3) for clamping the reinforcing bar; the separable cement block fastener also includes a cement block (5) cast on the side of the rectangular component (1) away from the opening (3) and located at the bottom of the side of the rectangular component (1) away from the elastic component (2) for disassembly and assembly with the template, and screw holes (6) opened on the cement block (5) for screw connection to fix the cement block (5) on the template.

2. The separable cement block fastener according to claim 1, characterized in that: The rectangular component (1) and the elastic component (2) are made of plastic material, and both the rectangular component (1) and the elastic component (2) are hollow structures.

3. The separable cement block fastener according to claim 2, characterized in that: The elastic slot (4) includes a through slot (41) formed between the rectangular member (1) and the elastic member (2) and communicating with the opening (3) for moving the reinforcing bar, a circular slot (42) formed between the rectangular member (1) and the elastic member (2) and communicating with one end of the through slot (41) away from the opening (3) for clamping the reinforcing bar, and limiting protrusions (43) symmetrically fixed on both sides inside the through slot (41).

4. The separable cement block fastener according to claim 3, characterized in that: The width of the through groove (41) near the end of the circular groove (42) is smaller than the width of the through groove (41) near the end of the opening (3).

5. The separable cement block fastener according to claim 4, characterized in that: The diameter of the circular groove (42) is greater than the width of the through groove (41) near the end of the circular groove (42), and the diameter of the circular groove (42) is less than the width of the through groove (41) near the end of the opening (3).

6. The separable cement block fastener according to claim 1, characterized in that: The side of the cement block (5) away from the rectangular piece (1) is planar.

7. The separable cement block fastener according to claim 6, characterized in that: The rectangular part (1) is fixedly provided with a threaded post (11) communicating with the screw hole (6), and the threaded post (11) is fixedly provided with a reinforcing rib (12) that is distributed in a ring and integrally formed with the rectangular part (1).

8. The separable cement block fastener according to claim 3, characterized in that: The elastic element (2) is fixedly provided with a reinforcing rib (21) on the side near the circular groove (42).

Images