A building foundation pile head protection cover with high load bearing

Abstract

The utility model relates to the field of building foundation pile head protection cover discloses a building foundation pile head protection cover of high load bearing, including bottom protection cover, the bottom protection cover inside hollow is equipped with the hole of the required steel bar of concrete pile head pouring can pass, and the inner wall is equipped with threaded connection mouth. In the utility model, the convenient of material transportation is improved through detachable structure, and the effect of every protection cover is formed to every section of pressure relief through setting up a plurality of buffer sealing rings, and the effect of improving load bearing is reached through reducing stress. The problem of gap caused by assembly type is solved through setting up threaded connection mouth waterproofing membrane, the impermeability of protection cover is improved, the problem of strength reduction caused by the corrosion of concrete slurry penetration to the steel bar is alleviated, thereby the effect of improving load bearing is reached.

Description

Technical Field

[0001] This utility model relates to the field of protective covers for building foundation pile heads, and in particular to a protective cover for building foundation pile heads with high load-bearing capacity. Background Technology

[0002] A pile head protection cover is a device used to protect the reinforcing steel bars in pile heads. It is typically used during the construction of bored piles. Its main function is to prevent direct contact between the concrete and the reinforcing steel bars during concrete pouring, thereby making it easier to separate the reinforcing steel bars from the concrete when breaking the pile head later, and avoiding bending or damage to the reinforcing steel bars.

[0003] Existing protective covers for building foundation pile heads can reduce stress concentration and improve overall compressive strength by tightly fitting the protective cover over the reinforcing bars of the pile head above the design elevation. However, these protective covers are inconvenient to transport because of the high strength of the materials used. Protective covers that are easy to transport often have insufficient material strength and may not be able to withstand the pressure required by the design, resulting in poor compressive strength.

[0004] Therefore, those skilled in the art have provided a high-load-bearing building foundation pile head protective cover to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a high-load-bearing building foundation pile head protective cover, which has compressive strength after assembly and is easy to transport after disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-load-bearing building foundation pile head protective cover includes a bottom protective sleeve. The bottom protective sleeve is hollow inside and has holes for the steel bars required for concrete pile head pouring to pass through. The inner wall has a threaded connection port. A bottom lower connector is threadedly sleeved at the upper end of the threaded connection port inside the bottom protective sleeve. A first protective sleeve is fixedly connected to the upper end of the bottom lower connector. A bottom upper connector is fixedly connected to the upper end of the first protective sleeve. A connection repeater is threadedly sleeved at the upper end of the bottom upper connector. An upper lower connector is threadedly sleeved at the upper end of the connection repeater. A second protective sleeve is fixedly connected to the upper end of the upper lower connector. An upper upper connector is fixedly connected to the upper end of the second protective sleeve. A top protective sleeve is threadedly sleeved at the upper end of the upper upper connector.

[0008] Furthermore, the bottom threaded interface of the bottom protective sleeve is fitted with a bottom threaded connection buffer sealing ring at its lower end.

[0009] Furthermore, the threaded interface of the bottom lower connector, the threaded interface of the bottom upper connector, the threaded interface of the upper lower connector, and the threaded interface of the upper upper connector are all threadedly fitted with threaded connection waterproof membrane.

[0010] Furthermore, connector buffer sealing rings are fitted at the fixed connection points of the bottom upper connector and the first protective sleeve near the outer surface, the fixed connection points of the upper lower connector and the second protective sleeve near the outer surface, and the fixed connection points of the upper upper connector and the second protective sleeve near the outer surface.

[0011] Furthermore, universal threaded connection buffer sealing rings are fitted at both ends of the internal threaded connection port of the top protective sleeve, both ends of the internal upper threaded connection port of the connection repeater, and both ends of the internal lower threaded connection port.

[0012] This utility model has the following beneficial effects:

[0013] This utility model proposes a protective cover for high-load-bearing building foundation pile heads. The components—bottom protective sleeve, bottom lower connector, first protective sleeve, bottom upper connector, connecting repeater, upper lower connector, second protective sleeve, upper upper connector, and top protective sleeve—are disassembled and transported to the construction site. Upon arrival, they are reassembled, reducing transportation difficulties. After arrival, the reinforcing bars are threaded through pre-drilled holes in the bottom protective sleeve, bottom lower connector, first protective sleeve, bottom upper connector, connecting repeater, upper lower connector, second protective sleeve, and upper upper connector. A top protective sleeve is then installed on top of the reinforcing bars, thus isolating them from the impact of pouring concrete piles, ensuring the strength of the reinforcing bars, and achieving the desired load-bearing capacity. Depending on the length requirements, a connecting repeater can be added above the upper connector to extend the length of the pile head protective sleeve. By threading the threaded surfaces of the bottom connector threaded interface, the bottom upper connector threaded interface, the upper lower connector threaded interface, and the upper upper connector threaded interface with the threaded connection port, waterproof membrane is used to prevent concrete slurry from seeping into the protective sleeve and corroding the reinforcing steel. The pressure between the threaded connection port and the sleeve interface is buffered by the connecting buffer sealing ring and the connection port, thereby enhancing the compressive strength. Attached Figure Description

[0014] Figure 1 This is an isometric schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional schematic diagram of the top protective sleeve of this utility model;

[0016] Figure 3This is a cross-sectional schematic diagram of the upper connection of this utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of the connection repeater of this utility model;

[0018] Figure 5 This is a cross-sectional view of the bottom connection of this utility model;

[0019] Figure 6 This is a cross-sectional schematic diagram of the bottom protective sleeve of this utility model.

[0020] Legend:

[0021] 1. Bottom protective sleeve; 2. Bottom lower connector; 3. Protective sleeve No. 1; 4. Bottom upper connector; 5. Connection repeater; 6. Upper lower connector; 7. Protective sleeve No. 2; 8. Upper upper connector; 9. Top protective sleeve; 10. Universal threaded connection buffer seal ring; 11. Connector buffer seal ring; 12. Threaded connection waterproof membrane; 13. Bottom threaded connection buffer seal ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 One embodiment provided by this utility model:

[0024] A high-load-bearing building foundation pile head protective cover includes a bottom protective sleeve 1, which is hollow inside and has holes for the steel bars required for concrete pile head pouring to pass through. The inner wall is provided with a threaded connection port. A bottom lower connector 2 is threadedly sleeved to the threaded connection port inside the bottom protective sleeve 1. A first protective sleeve 3 is fixedly connected to the upper end of the bottom lower connector 2. A bottom upper connector 4 is fixedly connected to the upper end of the first protective sleeve 3. A connection repeater 5 is threadedly sleeved to the upper end of the bottom upper connector 4. An upper lower connector 6 is threadedly sleeved to the upper end of the connection repeater 5. A second protective sleeve 7 is fixedly connected to the upper end of the upper lower connector 6. An upper upper connector 8 is fixedly connected to the upper end of the second protective sleeve 7. A top protective sleeve 9 is threadedly sleeved to the upper end of the upper upper connector 8.

[0025] Specifically, the reinforcing bar is passed through and fitted into the hole inside the bottom protective sleeve 1, and then continues to pass through and fit into the preset hole inside the bottom lower connector 2. The upper end of the threaded connection port inside the bottom protective sleeve 1 is threaded with the bottom lower connector 2, allowing the reinforcing bar to continue passing through and fitting into the preset hole inside the first protective sleeve 3. The upper end of the bottom lower connector 2 is fixedly connected to the first protective sleeve 3, allowing the reinforcing bar to continue passing through and fitting into the preset hole inside the bottom upper connector 4. The upper end of the first protective sleeve 3 is fixedly connected to the bottom upper connector 4, allowing the reinforcing bar to continue passing through and fitting into the preset hole inside the connecting repeater 5. Connector 4 has a threaded connection to a repeater 5 at its upper end. Repeater 5 has a threaded connection to an upper lower connector 6 at its upper end, allowing the reinforcing bar to pass through a pre-drilled hole inside the upper lower connector 6 and be fitted. A second protective sleeve 7 is fixedly connected to the upper end of the upper lower connector 6, allowing the reinforcing bar to pass through a pre-drilled hole inside the second protective sleeve 7 and be fitted. An upper upper connector 8 is fixedly connected to the upper end of the second protective sleeve 7, allowing the reinforcing bar to pass through a pre-drilled hole inside the upper upper connector 8 and be fitted. A top protective sleeve 9 is threadedly connected to the upper end of the upper upper connector 8, allowing the reinforcing bar to pass through a hole inside the top protective sleeve 9 and be fitted. This completes the assembly of the reinforcing bar and the protective cover.

[0026] Reference Figure 6 The bottom protective sleeve 1 has a bottom threaded connection buffer sealing ring 13 fitted at the lower end of the threaded interface.

[0027] Specifically, after the reinforcing bar passes through the bottom protective sleeve 1 and is fitted, a bottom threaded connection buffer sealing ring 13 is fitted at the threaded interface at the lower end of the bottom protective sleeve 1. When the protective cover is spliced ​​and subjected to pressure from above, the bottom threaded connection buffer sealing ring 13 will act as a pressure-bearing object, bearing part of the pressure from above and relieving the pressure on the lower components.

[0028] Reference Figure 3 , Figure 5 The threaded interface of the bottom connector 2, the threaded interface of the bottom connector 4, the threaded interface of the top connector 6, and the threaded interface of the top connector 8 are all threadedly connected to the waterproof membrane 12.

[0029] Specifically, threaded waterproof membrane 12 is fitted onto the threaded surfaces of the bottom connector 2, the bottom connector 4, the top connector 6, and the top connector 8. This further reduces the gaps between the threaded connections. Since it is itself a waterproof membrane, the impermeability of the connection is further enhanced, reducing the penetration of concrete slurry and reducing the corrosion of the protected steel bars by concrete.

[0030] Connector buffer sealing rings 11 are fitted at the fixed connection points of the bottom upper connector 4 and the first protective sleeve 3 near the outer surface, the upper lower connector 6 and the second protective sleeve 7 near the outer surface, and the upper upper connector 8 and the second protective sleeve 7 near the outer surface.

[0031] Specifically, when the reinforcing bar passes through and is fitted with the bottom upper connector 4 and the first protective sleeve 3, the upper lower connector 6 and the second protective sleeve 7, and the upper upper connector 8 and the second protective sleeve 7, the connector buffer sealing ring 11 is fitted to the fixed connection point of the bottom upper connector 4 and the first protective sleeve 3 near the outer surface, the fixed connection point of the upper lower connector 6 and the second protective sleeve 7 near the outer surface, and the fixed connection point of the upper upper connector 8 and the second protective sleeve 7 near the outer surface. When the protective cover is spliced ​​and subjected to pressure from above, the connector buffer sealing ring 11 will act as a pressure-bearing object, bearing part of the pressure from above and relieving the pressure on the lower components.

[0032] Reference Figure 2 , Figure 4 Universal threaded connection buffer sealing rings 10 are fitted at both ends of the internal threaded connection port of the top protective sleeve 9, the two ends of the internal upper threaded connection port of the connecting repeater 5, and the two ends of the internal lower threaded connection port.

[0033] Specifically, when the top protective sleeve 9 of the steel bar passes through and is connected to the repeater 5, the two ends of the internal threaded connection port of the top protective sleeve 9, the two ends of the internal upper threaded connection port of the repeater 5, and the two ends of the internal lower threaded connection port are fitted with universal threaded connection port buffer sealing rings 10. When the protective cover is spliced ​​and subjected to pressure from above, the universal threaded connection port buffer sealing rings 10 will act as a pressure-bearing object, bearing part of the pressure from above and relieving the pressure on the lower components.

[0034] Working principle: After the disassembled parts are transported to the site, they are installed. The reinforcing bar is passed through the hole in the bottom protective sleeve 1 and fitted, allowing it to continue through the pre-set hole inside the bottom lower connector 2 and fitted. The upper end of the threaded connection port inside the bottom protective sleeve 1 is threaded with the bottom lower connector 2, allowing the reinforcing bar to continue through the pre-set hole inside the first protective sleeve 3 and fitted. The upper end of the bottom lower connector 2 is fixedly connected to the first protective sleeve 3, allowing the reinforcing bar to continue through the pre-set hole inside the bottom upper connector 4 and fitted. The upper end of the first protective sleeve 3 is fixedly connected to the bottom upper connector 4, allowing the reinforcing bar to continue through the internal connection repeater 5. The pre-set holes are fitted together, and the bottom upper connector 4 is threadedly fitted with a connecting repeater 5. The upper end of the connecting repeater 5 is threadedly fitted with an upper lower connector 6, allowing the reinforcing bar to continue passing through the pre-set holes inside the upper lower connector 6 and fitting together. The upper end of the upper lower connector 6 is fixedly connected to a second protective sleeve 7, allowing the reinforcing bar to continue passing through the pre-set holes inside the second protective sleeve 7 and fitting together. The upper end of the second protective sleeve 7 is fixedly connected to an upper upper connector 8, allowing the reinforcing bar to continue passing through the pre-set holes inside the upper upper connector 8 and fitting together. The upper end of the upper upper connector 8 is threadedly fitted with a top protective sleeve 9, allowing the reinforcing bar to fit through the holes inside the top protective sleeve 9 and fitting together. This completes the assembly of the reinforcing bar and the protective cover. After assembly, the reinforcing bar can be effectively protected, preventing contact between the reinforcing bar and concrete, which could cause corrosion and reduce the strength of the reinforcing bar. The spiral joint waterproof membrane 12 pairs of bottom lower connector 2 threaded interface threaded surfaces are connected to the bottom upper connector 4 threaded interface threaded surfaces, upper lower connector 6 threaded interface threaded surfaces, and upper upper connector 8 threaded interface threaded surfaces. This connection reduces pores after the spiral joint is connected, improves the sealing of the joint, thereby improving impermeability and reducing the strength reduction caused by corrosion of the protected steel bars due to concrete slurry infiltration. This indirectly improves the pressure resistance. The bottom upper connector 4 connects to the first protective sleeve 3, and the upper... When the lower connector 6 and the second protective sleeve 7 are connected together, and the upper connector 8 and the second protective sleeve 7 are connected together, connector buffer sealing rings 11 are fitted at the fixed connection points of the lower connector 4 and the first protective sleeve 3 near the outer surface, the fixed connection points of the upper connector 6 and the second protective sleeve 7 near the outer surface, and the fixed connection points of the upper connector 8 and the second protective sleeve 7 near the outer surface. When the protective cover is spliced ​​and subjected to pressure from above, the connector buffer sealing ring 11 will act as a pressure-bearing object, bearing part of the pressure from above and relieving the pressure on the lower components.Universal threaded connection buffer sealing rings 10 are fitted at both ends of the internal threaded connection ports of the top protective sleeve 9, the internal upper threaded connection ports of the connecting repeater 5, and the internal lower threaded connection ports of the connecting repeater 5. When the reinforcing bar is fitted onto the top protective sleeve 9 and passes through and is fitted onto the connecting repeater 5, the universal threaded connection buffer sealing rings 10 are fitted at both ends of the internal threaded connection ports of the top protective sleeve 9, the internal upper threaded connection ports of the connecting repeater 5, and the internal lower threaded connection ports of the connecting repeater 5. When the protective cover is spliced ​​and subjected to pressure from above, the universal threaded connection buffer sealing rings 10 act as a pressure-bearing object, absorbing part of the pressure from above and relieving the pressure on the lower components. This further improves the impermeability and reduces the pressure on each section of the protective cover, thereby increasing the load-bearing capacity.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective cover for the pile heads of high-load-bearing building foundations, comprising a bottom protective sleeve (1), characterized in that: The bottom protective sleeve (1) is hollow inside and has holes for the steel bars required for concrete pile head pouring to pass through. The inner wall is provided with a threaded connection port. The bottom lower connector (2) is threadedly sleeved at the upper end of the threaded connection port inside the bottom protective sleeve (1). The first protective sleeve (3) is fixedly connected to the upper end of the bottom lower connector (2). The bottom upper connector (4) is fixedly connected to the upper end of the first protective sleeve (3). The connecting repeater (5) is threadedly sleeved at the upper end of the bottom upper connector (4). The upper lower connector (6) is threadedly sleeved at the upper end of the connecting repeater (5). The second protective sleeve (7) is fixedly connected to the upper end of the second protective sleeve (7). The upper upper connector (8) is threadedly sleeved at the upper end of the upper upper connector (8). The top protective sleeve (9) is threadedly sleeved at the upper end of the upper upper connector (8).

2. The protective cover for high-load-bearing building foundation pile heads according to claim 1, characterized in that: The bottom protective sleeve (1) has a bottom threaded connection port buffer sealing ring (13) sleeved at the lower end of the threaded interface.

3. The protective cover for high-load-bearing building foundation pile heads according to claim 1, characterized in that: The threaded interface of the bottom lower connector (2), the threaded interface of the bottom upper connector (4), the threaded interface of the upper lower connector (6), and the threaded interface of the upper upper connector (8) are all threadedly fitted with threaded waterproof membrane (12).

4. A protective cover for high-load-bearing building foundation pile heads according to claim 1, characterized in that: The bottom upper connector (4) is fixedly connected to the first protective sleeve (3) near the outer surface, the upper lower connector (6) is fixedly connected to the second protective sleeve (7) near the outer surface, and the upper upper connector (8) is fixedly connected to the second protective sleeve (7) near the outer surface, all of which are fitted with connector buffer sealing rings (11).

5. A protective cover for high-load-bearing building foundation pile heads according to claim 1, characterized in that: Both ends of the internal threaded connection of the top protective sleeve (9), both ends of the internal upper threaded connection of the connection repeater (5) and both ends of the internal lower threaded connection are fitted with universal threaded connection buffer sealing rings (10).

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