Composite long-span cement pre-component
By introducing I-beam blocks, blocking mechanisms, and connecting mechanisms into precast concrete components, the problems of convenience and stability in the assembly of long-span precast concrete components are solved, achieving a fast and stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN RUNTONG NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-19
AI Technical Summary
Existing long-span precast concrete components are not convenient to assemble and have poor connection stability.
The design adopts a composite long-span precast concrete component, which includes the concrete component body, I-beam blocks, blocking mechanisms, and connecting mechanisms. The combination of blocking and connecting mechanisms connects adjacent concrete components together, improving stability.
It enables quick connection of cement components and improves connection stability.
Smart Images

Figure CN224259705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precast cement components, specifically to a composite long-span precast cement component. Background Technology
[0002] Precast concrete components (also known as precast concrete components) are structural units that are prefabricated in a factory or dedicated site, using cement (concrete) as the main material, cast in standardized molds, cured to the specified strength, and then transported to the construction site for assembly. In the prior art, long-span precast concrete components are mostly prefabricated in sections and then transported individually to the work site for assembly. This process is not convenient and results in poor connection stability. Therefore, those skilled in the art have provided a composite long-span precast concrete component to solve the problems mentioned in the background art. Utility Model Content
[0003] To solve the above technical problems, this utility model provides a composite long-span precast cement component, including a cement component body, an I-shaped block, a blocking mechanism and a connecting mechanism. The cement component body has several through holes inside, and mating grooves are provided at the four corners of the upper end of the cement component body. T-shaped grooves are provided at the lower end of the mating grooves, and the T-shaped grooves penetrate the side of the cement component body. The inner wall of the mating grooves is symmetrically provided with slots.
[0004] The T-shaped grooves of two adjacent cement components are equipped with I-shaped blocks, the mating grooves of two adjacent cement components are equipped with blocking mechanisms, and several fixing blocks are installed at the front and rear ends of the cement components. The fixing blocks have insertion holes inside, and the front and rear ends of two adjacent cement components are equipped with connecting mechanisms.
[0005] Preferably, the blocking mechanism includes a hollow block and a threaded rod, the threaded rod is rotatably connected inside the hollow block, the threads on the left and right sides of the outer surface of the threaded rod are opposite in direction, and a bevel gear is installed on the outer surface of the threaded rod.
[0006] Preferably, the first bevel gear and the second bevel gear mesh, a rotating shaft is installed at the rear end of the second bevel gear, a rotating block is installed at the rear end of the rotating shaft, and the rotating block is rotatably connected to the rear end of the hollow block.
[0007] Preferably, the outer surface of the threaded rod is symmetrically fitted with threaded sleeves, and a locking block is symmetrically installed at the outer end of the threaded sleeve, with the locking block corresponding to the position of the locking groove.
[0008] Preferably, the connecting mechanism includes a connecting rod one and a connecting rod two. The connecting rod one has several arc-shaped grooves one on its side. Insert rods are installed on the inner wall of the arc-shaped grooves one, and the positions of the insert rods correspond to the positions of the insertion holes one. Threaded holes are opened inside the insert rods.
[0009] Preferably, the connecting rod has several arc-shaped grooves on its two sides, and insertion holes are formed on the inner wall of the arc-shaped grooves. The insertion holes penetrate the connecting rod and fastening bolts are installed inside the insertion holes.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] This invention involves inserting an I-shaped block into the T-shaped groove of two cement component bodies. Then, a blocking mechanism is installed in the mating groove to block the I-shaped block, thus connecting the two cement component bodies together quickly and easily. Next, the insertion rod of connecting rod one is inserted into the insertion hole of the fixing block of the two cement component bodies. Then, connecting rod two and connecting rod one are joined together. The connection between connecting rod one, insertion rod, connecting rod two and fixing block is fixed, thereby improving the connection stability between the cement component bodies. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this application;
[0013] Figure 2 This is a schematic diagram of the unfolded form of this application;
[0014] Figure 3 This is a schematic diagram of the blocking mechanism of this application;
[0015] Figure 4 This is a schematic diagram of the connection mechanism of this application;
[0016] In the picture:
[0017] 1. Cement component body; 2. Through hole; 3. Fitting groove; 4. T-slot; 5. Slot; 6. Blocking mechanism; 7. Hollow block; 8. Threaded rod; 9. Bevel gear one;
[0018] 10. Two bevel gears; 11. Shaft; 12. Threaded sleeve; 13. Clamping block; 14. I-beam block; 15. Fixing block; 16. One insertion hole; 17. Connecting mechanism; 18. One connecting rod; 19. One arc groove;
[0019] 20. Insert rod; 21. Threaded hole; 22. Connecting rod two; 23. Arc groove two; 24. Insertion hole two; 25. Fastening bolt. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0021] Please see Figures 1-4 This embodiment provides a composite long-span precast concrete component, including a concrete component body 1, I-beam blocks 14, a blocking mechanism 6, and a connecting mechanism 17. The concrete component body 1 has several through holes 2 inside. Each of the four corners of the upper end of the concrete component body 1 has a mating groove 3. A T-shaped groove 4 is formed at the lower end of the mating groove 3, penetrating the side of the concrete component body 1. The inner wall of the mating groove 3 has symmetrically formed slots 5. I-beam blocks 14 are provided inside the T-shaped grooves 4 of two adjacent concrete component bodies 1. A blocking mechanism 6 is provided inside the mating grooves 3 of two adjacent concrete component bodies 1. The blocking mechanism 6 includes a hollow block 7 and a threaded rod 8. The threaded rod 8 is rotatably connected inside the hollow block 7. The threads on the left and right sides of the outer surface of the threaded rod 8 have opposite directions. A bevel gear 9 is installed on the outer surface of the threaded rod 8. The bevel gear 9 meshes with a bevel gear 10. A rotating shaft 11 is installed at the rear end of the bevel gear 10. A rotating block is installed at one end, and the rotating block is rotatably connected to the rear end of the hollow block 7. Threaded sleeves 12 are symmetrically fitted on the outer surface of the threaded rod 8. A locking block 13 is symmetrically installed on the outer end of the threaded sleeve 12, and the locking block 13 corresponds to the position of the locking groove 5. Several fixing blocks 15 are installed at both ends of the cement component body 1. The fixing blocks 15 have insertion holes 16 inside. Both ends of two adjacent cement component bodies 1 are provided with connecting mechanisms 17. The connecting mechanism 17 includes a connecting rod 18 and a connecting rod 22. Several arc-shaped grooves 19 are opened on the side of the connecting rod 18. Insert rods 20 are installed on the inner wall of the arc-shaped grooves 19, and the insertion rods 20 correspond to the position of the insertion holes 16. Threaded holes 21 are opened inside the insertion rods 20. Several arc-shaped grooves 23 are opened on the side of the connecting rod 22. Insert holes 24 are opened on the inner wall of the arc-shaped grooves 23, and the insertion holes 24 penetrate the connecting rods 22. Fastening bolts 25 are installed inside the insertion holes 24.
[0022] The working principle of this utility model is as follows: two cement component bodies 1 are joined together, an I-shaped block 14 is inserted into the T-shaped groove 4 of the two cement component bodies 1, and then a hollow block 7 is placed into the mating groove 3 of the two cement component bodies 1. The rotating block and the rotating shaft 11 drive the bevel gear 2 10 to rotate. The bevel gear 2 10 and the bevel gear 1 9 mesh to drive the threaded rod 8 to rotate. The threaded rod 8 drives the two threaded sleeves 12 to move outward. The threaded sleeves 12 drive the locking block 13 to be inserted into the locking groove 5, so that the blocking mechanism 6 is installed in the mating groove 3. The blocking mechanism 6 blocks the I-shaped block 14, so that the two cement component bodies 1 are connected together.
[0023] Then, insert the insertion rod 20 of connecting rod 18 into the insertion hole 16 of the fixing block 15 of the two cement component bodies 1. Then, put connecting rod 22 and connecting rod 18 together, so that the insertion rod 20 is inserted into the insertion hole 24. Then, turn the fastening bolt 25 into the threaded hole 21 to fix connecting rod 18 and connecting rod 22 together. Through the fixed connection between connecting rod 18, insertion rod 20, connecting rod 22 and fixing block 15, the connection stability between cement component bodies 1 is improved.
[0024] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A composite long-span precast cement component, characterized in that, The cement component body (1), I-shaped block (14), blocking mechanism (6) and connecting mechanism (17) are included. Several through holes (2) are opened inside the cement component body (1). Matching grooves (3) are opened at the four corners of the upper end of the cement component body (1). T-shaped grooves (4) are opened at the lower end of the matching grooves (3). The T-shaped grooves (4) penetrate the side of the cement component body (1). The inner wall of the matching grooves (3) is symmetrically provided with slots (5). An I-shaped block (14) is provided inside the T-shaped groove (4) of two adjacent cement component bodies (1). A blocking mechanism (6) is provided inside the mating groove (3) of two adjacent cement component bodies (1). Several fixing blocks (15) are installed at the front and rear ends of the cement component body (1). An insertion hole (16) is opened inside the fixing block (15). A connecting mechanism (17) is provided at the front and rear ends of two adjacent cement component bodies (1).
2. The composite long-span precast cement component according to claim 1, characterized in that, The blocking mechanism (6) includes a hollow block (7) and a threaded rod (8). The threaded rod (8) is rotatably connected inside the hollow block (7). The threads on the left and right sides of the outer surface of the threaded rod (8) are opposite in direction. A bevel gear (9) is installed on the outer surface of the threaded rod (8).
3. A composite long-span precast cement component according to claim 2, characterized in that, The first bevel gear (9) and the second bevel gear (10) mesh. A rotating shaft (11) is installed at the rear end of the second bevel gear (10). A rotating block is installed at the rear end of the rotating shaft (11), and the rotating block is rotatably connected to the rear end of the hollow block (7).
4. A composite long-span precast cement component according to claim 2, characterized in that, The threaded rod (8) is symmetrically fitted with threaded sleeves (12) on its outer surface. A locking block (13) is symmetrically installed on the outer end of the threaded sleeve (12), and the locking block (13) corresponds to the position of the locking groove (5).
5. A composite long-span precast cement component according to claim 1, characterized in that, The connecting mechanism (17) includes a connecting rod one (18) and a connecting rod two (22). The connecting rod one (18) has several arc-shaped grooves one (19) on its side. The inner wall of the arc-shaped grooves one (19) is fitted with a plug rod (20), and the plug rod (20) corresponds to the position of the plug hole one (16). The plug rod (20) has a threaded hole (21) inside.
6. A composite long-span precast concrete component according to claim 5, characterized in that, The connecting rod 2 (22) has several arc-shaped grooves 2 (23) on its side. The inner wall of the arc-shaped grooves 2 (23) has a insertion hole 2 (24) which penetrates the connecting rod 2 (22). A fastening bolt (25) is installed inside the insertion hole 2 (24).