Prefabricated expansion joint filling structure
By introducing components such as buffer layer and protective roof panels into the concrete prefabricated expansion joint fill structure, the problem of lack of buffering function and wear resistance in the prior art is solved, and a higher service life and structural strength are achieved.
Patent Information
- Application Number
- CN202420925725.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing concrete prefabricated expansion joint caulking structure lacks buffering function, resulting in the inability to reduce impact force after the vehicle is rolled, the service life is low, and the structural strength and wear resistance are poor.
A prefabricated expansion joint caulking structure is designed, including base layer, mounting groove, adhesive layer, drain shell, elastic connecting plate, buffer layer, mounting base plate, protective top plate and positioning bolts. Through the combination of these components, buffer protection is added Function and wear resistance improve the strength and service life of the structure.
The structure has a buffer protection function, which can reduce impact force when the vehicle is rolled out, extend service life, and improve the top strength and wear resistance.
Smart Images

Figure CN222275135U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compartment joint filling, in particular to a prefabricated expansion joint filling structure. Background Art
[0002] A partition joint, also known as an expansion joint, refers to a gap with elastic deformation capability set in a concrete structure. It is generally set inside or around the concrete structure. Its main function is to solve the cracking problem caused by concrete shrinkage or temperature changes.
[0003] After searching, the patent number is CN213597230U, and the name is a utility model of a mounting structure of a prefabricated expansion joint on a concrete floor, which includes a base layer, a compartment joint is provided on the base layer, and an installation groove is opened along the compartment joint on the base layer. Through research and analysis, it is found that although it has a waterproof function and has the advantages of high strength and high chemical corrosion resistance, after installation, the floor coating system can be coated on the surface or it can be directly exposed for use. However, there are still the following defects to a certain extent.
[0004] For example, the caulking structure does not have a buffering function and cannot reduce the impact force generated after a vehicle runs over it. As a result, the internal structure will be damaged after a long period of impact and the service life will be short. In addition, the top strength of the caulking structure is not high and the wear resistance is poor. In order to solve the above technical problems, we have designed a prefabricated expansion joint caulking structure. Utility Model Content
[0005] The purpose of the utility model is to provide a prefabricated expansion joint filling structure, which has the advantages of buffering function, reducing impact force, extending service life, higher structural strength and better wear resistance of the outer surface, and solves the problems of lack of buffering function, affecting service life, low structural strength and poor wear resistance of the outer surface.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated expansion joint filling structure, comprising a right base layer and a left base layer, the tops of the right base layer and the left base layer are both provided with installation grooves, the inner cavity of the installation grooves is coated with a first adhesive layer, the tops of the left and right first adhesive layers are bonded with a drainage shell, the bottom of the inner cavity of the drainage shell is fixedly connected with an elastic connecting plate, the top of the first adhesive layer is bonded with a buffer layer, the top of the buffer layer is coated with a second adhesive layer, the top of the second adhesive layer is bonded with a mounting base plate, the top of the mounting base plate is paved with a protective top plate, and the front and rear sides of the top of the protective top plate are penetrated by positioning bolts that are movably connected.
[0007] Preferably, the mounting base plate comprises a base plate body, a placement groove is provided on the top of the base plate body, an inner cavity of the placement groove is filled with a buffer pad, and threaded grooves are provided on both the front and rear sides of the top of the base plate body.
[0008] Preferably, the protective top plate comprises a top plate body, the top of the top plate body is coated with a wear-resistant coating, and through holes are provided on both the front and rear sides of the top of the top plate body.
[0009] Preferably, a compartment gap is provided between the right base layer and the left base layer, and the inner cavity of the compartment gap is filled with a foam partition.
[0010] Preferably, the top of the elastic connecting plate penetrates to the top of the protective top plate, and sealing cover plates are inserted into the front and rear sides of the top of the protective top plate.
[0011] Preferably, the number of the positioning bolts is four, and the number of the mounting base plate, the buffer layer and the protective top plate are two each.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] The inner wall of the installation groove is polished and flat and coated with a first adhesive layer, the buffer layer is placed on the first adhesive layer for bonding and fixing, the bottom plate body is laid flat on the second adhesive layer for bonding and fixing, the positioning bolts are inserted into the through holes and the threaded grooves and tightened with a socket wrench. By arranging the top plate body on the top, the use strength of the top of the caulking structure can be improved to avoid deformation and damage after long-term use, and the wear resistance is stronger. By arranging a buffer layer and a placement groove inside, the caulking structure can have a buffer protection function, and when a vehicle runs over the structure, the impact on the device can be reduced, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an axonometric drawing of the structure of the utility model;
[0015] Figure 2 It is an exploded view of the local structure of the utility model;
[0016] Figure 3 It is a sectional axonometric view of the protective top plate of the utility model.
[0017] In the figure: 1. right base layer; 2. first adhesive layer; 3. foam partition; 4. drainage shell; 5. installation base plate; 6. buffer layer; 7. left base layer; 8. protective top plate; 9. sealing cover plate; 10. elastic connecting plate; 11. threaded groove; 12. buffer pad; 13. placement groove; 14. base plate body; 15. second adhesive layer; 16. positioning bolt; 17. through hole; 18. top plate body; 19. wear-resistant coating. DETAILED DESCRIPTION
[0018] See also Figure 1-Figure 3A prefabricated expansion joint caulking structure comprises a right base layer 1 and a left base layer 7. The tops of the right base layer 1 and the left base layer 7 are both provided with mounting grooves. The inner cavity of the mounting grooves is coated with a first adhesive layer 2. The tops of the left and right first adhesive layers 2 are bonded with a drainage shell 4. The bottom of the inner cavity of the drainage shell 4 is fixedly connected with an elastic connecting plate 10. The top of the first adhesive layer 2 is bonded with a buffer layer 6. The top of the buffer layer 6 is coated with a second adhesive layer 15. The top of the second adhesive layer 15 is bonded with a mounting base plate 5. The top of the mounting base plate 5 is paved with a protective top plate 8. The front and rear sides of the top of the protective top plate 8 are both penetrated and movably connected with positioning bolts 16. The buffer layer 6 and the buffer pad 12 are both made of damping rubber shock-absorbing pads, which have both high elasticity and high viscosity, reduce impact force, and have good buffering protection functions. By setting the drainage shell 4, it has the function of drainage, and can collect and discharge the leaked water in the drainage shell 4;
[0019] See also Figure 2 The installation base plate 5 includes a base plate body 14, a placement groove 13 is provided on the top of the base plate body 14, and the inner cavity of the placement groove 13 is filled with a buffer pad 12. The front and rear sides of the top of the base plate body 14 are provided with thread grooves 11. By setting the thread grooves 11, the function of connection and installation is provided, and the top plate body 18 can be fixedly installed by being used in conjunction with the positioning bolts 16;
[0020] See also Figure 3 The protective top plate 8 includes a top plate body 18, the top of the top plate body 18 is coated with a wear-resistant coating 19, and through holes 17 are opened on both the front and rear sides of the top of the top plate body 18. The top plate body 18 is made of steel plate to improve the use strength of the caulking structure. The wear-resistant coating 19 is coated with nano-ceramic coating;
[0021] See also Figure 1 A compartment gap is provided between the right base layer 1 and the left base layer 7, and the inner cavity of the compartment gap is filled with a foam partition 3;
[0022] See also Figure 1 The top of the elastic connecting plate 10 penetrates to the top of the protective top plate 8, and the front and rear sides of the top of the protective top plate 8 are plugged with sealing cover plates 9. By setting the sealing cover plates 9, a protective function is provided, which can seal the top of the through hole 17 and protect the internal positioning bolts 16;
[0023] See also Figure 1 The number of the positioning bolts 16 is four, and the number of the mounting base plate 5, the buffer layer 6 and the protective top plate 8 are two each.
[0024] When in use, the personnel use tools to open installation grooves on the top of the right base layer 1 and the left base layer 7 respectively, then grind the inner wall of the installation groove flat and apply the first adhesive layer 2, first put the two sides of the bottom of the drainage shell 4 flat on the two first adhesive layers 2 on the left and right, respectively, and fix the elastic connecting plate 10 to the middle of the bottom of the inner cavity of the drainage shell 4, and then place the buffer layer 6 on the first adhesive layer 2 for bonding and fixing, apply the second adhesive layer 15 on the top of the buffer layer 6 and lay the bottom plate body 14 flat on the second adhesive layer 15 for bonding and fixing, put the top plate body 18 flat on the bottom plate body 14 and screw it in place. The groove 11 overlaps with the through hole 17, and then the positioning bolt 16 is inserted into the through hole 17 and the threaded groove 11 and tightened with a socket wrench to fix the top plate body 18 on the bottom plate body 14. The installation of the caulking structure is completed. By arranging the top plate body 18 on the top, the use strength of the top of the caulking structure can be improved to avoid deformation and damage after long-term use, and the wear resistance is stronger. By arranging a buffer layer 6 and a placement groove 13 inside, the caulking structure can have a buffer protection function. When a vehicle runs over the structure, the impact on the device can be reduced, thereby extending the service life.
[0025] To sum up: the prefabricated expansion joint filling structure, through the coordinated use of the right base layer 1, the first adhesive layer 2, the foam partition 3, the drainage shell 4, the installation base plate 5, the buffer layer 6, the left base layer 7, the protective top plate 8 and the elastic connecting plate 10, solves the problems of lack of buffering function, affecting the service life, low structural strength and poor wear resistance of the outer surface.
Claims
1. A prefabricated expansion joint caulking structure, comprising a right base layer (1) and a left base layer (7), characterized in that: The tops of the right base layer (1) and the left base layer (7) are both provided with mounting grooves, the inner cavity of the mounting grooves is coated with a first adhesive layer (2), the tops of the left and right first adhesive layers (2) are bonded with a drainage shell (4), the bottom of the inner cavity of the drainage shell (4) is fixedly connected with an elastic connecting plate (10), the top of the first adhesive layer (2) is bonded with a buffer layer (6), the top of the buffer layer (6) is coated with a second adhesive layer (15), the top of the second adhesive layer (15) is bonded with a mounting base plate (5), the top of the mounting base plate (5) is paved with a protective top plate (8), and the front and rear sides of the top of the protective top plate (8) are both penetrated by positioning bolts (16) that are movably connected.
2. A prefabricated expansion joint filling structure according to claim 1, characterized in that: The mounting base plate (5) comprises a base plate body (14), a placement groove (13) is provided at the top of the base plate body (14), the inner cavity of the placement groove (13) is filled with a buffer pad (12), and thread grooves (11) are provided on both the front and rear sides of the top of the base plate body (14).
3. A prefabricated expansion joint filling structure according to claim 1, characterized in that: The protective top plate (8) comprises a top plate body (18), the top of which is coated with a wear-resistant coating (19), and through holes (17) are provided on both the front and rear sides of the top of the top plate body (18).
4. A prefabricated expansion joint filling structure according to claim 1, characterized in that: A compartment gap is provided between the right base layer (1) and the left base layer (7), and the inner cavity of the compartment gap is filled with a foam partition (3).
5. The prefabricated expansion joint filling structure according to claim 1, characterized in that: The top of the elastic connecting plate (10) penetrates to the top of the protective top plate (8), and sealing cover plates (9) are inserted at both the front and rear sides of the top of the protective top plate (8).
6. The prefabricated expansion joint filling structure according to claim 1, characterized in that: The number of the positioning bolts (16) is four, and the number of the mounting base plate (5), the buffer layer (6) and the protective top plate (8) are two each.