Split type ellipsoid concrete cushion block

Abstract

The utility model relates to the technical field of reinforcement cage construction, and particularly discloses a split type ellipsoid concrete cushion block. The ellipsoid comprises an ellipsoid-shaped ellipsoid body, the ellipsoid body is provided with a first through hole for a stirrup to penetrate through in the long-axis direction, and the ellipsoid body is provided with a second through hole for the stirrup to penetrate through in the short-axis direction; the ellipsoid main body comprises two concrete split bodies which are oppositely arranged, a contact surface is formed at the contact part of the two concrete split bodies, an axial interlocking part is arranged on the contact surface, and the axial interlocking part comprises a dovetail joint formed on the contact surface of one concrete split body and a guide groove correspondingly formed in the contact surface of the other concrete split body, and the dovetail joint is inserted into the guide groove along the short axis direction of the ellipsoid main body, so that the two concrete split bodies are combined into the ellipsoid main body. The ellipsoidal shape can uniformly disperse load and reduce the risk of local stress concentration, and compared with a traditional rectangular or cylindrical cushion block, the cushion block is more difficult to damage.

Description

Technical Field

[0001] This utility model relates to the field of steel cage construction technology, specifically to a split ellipsoidal concrete pad. Background Technology

[0002] Concrete spacers for the protective layer of steel cages play a crucial role in building construction. They are typically fixed to the stirrups of the steel cage to ensure accurate positioning of the cage and improve the stability and seismic performance of the structure.

[0003] Traditional split concrete blocks are mostly cylindrical or similar shapes, using insert rods to connect them, and then fixing the split concrete blocks with connectors. This is relatively complicated to use, and only the insert rods bear the force at the connection points, resulting in low strength. Their structural dimensions are mostly fixed, making them poorly applicable to concrete cages of different thicknesses. Utility Model Content

[0004] This invention provides a split ellipsoidal concrete pad that overcomes some or all of the defects of the prior art.

[0005] According to the present invention, a split ellipsoidal concrete pad includes an ellipsoidal body. The ellipsoidal body has a first through hole along the long axis for hoop bars to pass through, and a second through hole along the short axis for hoop bars to pass through. The ellipsoidal body includes two opposing concrete parts. A contact surface is formed at the contact point of the two concrete parts. An axial interlocking part is provided on the contact surface. The axial interlocking part includes a dovetail tenon formed on the contact surface of one concrete part and a guide groove correspondingly opened on the contact surface of the other concrete part. The dovetail tenon is inserted into the guide groove along the short axis of the ellipsoidal body, so that the two concrete parts are combined to form the ellipsoidal body.

[0006] Through this invention, the dovetail tenon and the guide groove are axially interlocked along the short axis, achieving a tight connection between the two concrete parts. This effectively prevents misalignment or separation caused by external forces during concrete pouring, thus improving the overall structural stability. The ellipsoidal shape can evenly distribute the load, reducing the risk of local stress concentration, and is less prone to damage compared to traditional rectangular or cylindrical pads. The split structure allows for direct assembly after the stirrups are in place, without the need to disassemble or adjust the already tied reinforcing bars, greatly simplifying the construction process, and is especially suitable for complex reinforcing cage scenarios. The first and second through holes correspond to different installation methods and different protective layer thicknesses, making it more widely applicable.

[0007] Preferably, a longitudinal limiting part is also provided on the contact surface. The longitudinal limiting part includes a first boss protruding along the guide groove direction on the contact surface of one concrete part, and a second boss that matches the first boss is provided on the contact surface of another concrete part. When the dovetail tenon and the guide groove are mortised, the first boss and the second boss contact each other to form a limiting fit.

[0008] With this invention, the first boss and the second boss contact to form a limiting fit, providing a clear fitting path and assisting construction personnel in quick installation. Only the dovetail tenon needs to be inserted into the guide groove along the short axis of the ellipsoidal body, without over-insertion, thus avoiding rework caused by over-insertion.

[0009] Preferably, the stirrups pass through the first or second through hole, forming different installation states corresponding to the thickness of the protective layer.

[0010] With this utility model, the stirrups can be installed in different ways through the first through hole or the second through hole, and can be adapted to different protective layer thicknesses, thus having a wider range of applications.

[0011] Preferably, when the first through hole is installed and matched with the stirrup, a first installation state is formed. At this time, the minor axis length of the ellipsoid body is equal to the design thickness of the protective layer of the steel cage, and the ellipsoid body can rotate circumferentially around the axis of the stirrup.

[0012] With this invention, the minor axis of the ellipsoidal body is equal to the designed protective layer thickness, and the outer edge of the ellipsoidal body naturally forms a positioning reference. During concrete pouring, it directly abuts against the steel casing to eliminate deviations and ensure the thickness of the protective layer. The ellipsoidal body can rotate freely to prevent the rebar cage from getting stuck during the lowering process, which facilitates construction. At this time, the split structure allows for direct assembly after the stirrups are in place, without the need to disassemble or adjust the tied rebars, which greatly simplifies the construction process and is especially suitable for complex rebar cage scenarios.

[0013] Preferably, when the second through hole is installed and matched with the stirrup, a second installation state is formed. At this time, the major axis length of the ellipsoid body is greater than the design thickness of the protective layer, and the minor axis length of the ellipsoid body is less than the design thickness of the protective layer. The ellipsoid body can rotate within a certain angle range.

[0014] With this invention, the major axis of the ellipsoidal body is longer than the designed protective layer thickness, while the minor axis is shorter than the protective layer thickness. In the second installation state, the major axis of the ellipsoidal body serves as the upper limit of the protective layer thickness, and the minor axis serves as the lower limit, ensuring minimum effective protective layer coverage. This design can effectively protect the protective layer for different protective layer design thicknesses within a certain range. The ellipsoidal body can rotate within a certain angle range to prevent the steel cage from getting stuck during the lowering process, facilitating construction.

[0015] Preferably, the ellipsoidal bodies are evenly distributed along the circumference of the steel cage, and each ellipsoidal body is sleeved on the outer surface of the stirrup through a first through hole or a second through hole.

[0016] This invention allows for the even distribution of multiple ellipsoidal bodies, which can disperse the lateral pressure on the reinforcing cage during concrete pouring, avoid local stress concentration, and reduce the risk of deformation or displacement of the reinforcing cage. The symmetrically arranged ellipsoidal bodies can better balance the position of the reinforcing cage in the concrete, prevent displacement caused by vibration or flowing concrete during pouring, ensure that the sides of the reinforcing cage are equidistant from the steel casing, avoid local excessively thin or thick protective layer thickness, and meet the design specifications.

[0017] Preferably, the ellipsoid body is made of C60 concrete.

[0018] Through this invention, C60 concrete has high compressive and impact strength, can withstand the impact and collision of the lowering of the reinforcing cage, avoids crushing and failure of the ellipsoidal body, and ensures the stability of the protective layer thickness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the steel cage and the main ellipsoid.

[0020] Figure 2 This is a schematic diagram of the ellipsoid.

[0021] Figure 3 This is a schematic diagram of the main body of the ellipsoid.

[0022] Figure 4 This is a schematic diagram of a concrete structure.

[0023] Figure 5 This is a side view diagram of a concrete section.

[0024] Figure 6 This is a schematic diagram showing the maximum protective layer thickness corresponding to the ellipsoidal body in the second installation state;

[0025] Figure 7 This is a schematic diagram showing the minimum protective layer thickness corresponding to the ellipsoidal body in the second installation state. Detailed Implementation

[0026] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0027] Example 1

[0028] like Figure 1-7As shown, this embodiment provides a split ellipsoidal concrete pad, which includes an ellipsoidal body 100. The ellipsoidal body 100 has a first through hole 210 for the stirrups 120 to pass through along the long axis and a second through hole 220 for the stirrups 120 to pass through along the short axis. The ellipsoidal body 100 includes two opposing concrete parts 230. A contact surface 310 is formed at the contact point of the two concrete parts 230. An axial interlocking part 320 is provided on the contact surface 310. The axial interlocking part 320 includes a dovetail tenon 330 formed on the contact surface 310 of one concrete part 230 and a guide groove 340 correspondingly opened on the contact surface 310 of the other concrete part 230. The dovetail tenon 330 is inserted into the guide groove 340 along the short axis of the ellipsoidal body 100, so that the two concrete parts 230 are combined to form the ellipsoidal body 100.

[0029] In this embodiment, the dovetail tenon 330 and the guide groove 340 are axially interlocked along the short axis, achieving a tight connection between the two concrete parts 230. This effectively prevents misalignment or separation caused by external forces during concrete pouring, improving the overall structural stability. Compared with traditional insert rods, the cross-section of the connection bearing force is larger and can withstand higher impact strength. The ellipsoidal shape can evenly distribute the load, reducing the risk of local stress concentration. It is less prone to damage than traditional rectangular or cylindrical pads. The split structure allows for direct assembly after the stirrups 120 are in place, without the need to disassemble or adjust the tied reinforcing bars, greatly simplifying the construction process, especially suitable for complex reinforcing cage 140 scenarios. The first through hole 210 and the second through hole 220 correspond to different installation methods and different protective layer 130 thicknesses, making it more applicable. The contact surface 310 of the two concrete parts 230 forms resistance after installation through the friction of the concrete on its own surface, preventing detachment.

[0030] In this embodiment, a longitudinal limiting part 350 is also provided on the contact surface 310. The longitudinal limiting part 350 includes a first boss 351 protruding from the contact surface 310 of a concrete component 230 along the direction of the guide groove 340, and a second boss 352 adapted to the first boss 351 is provided on the contact surface 310 of another concrete component 230. When the dovetail tenon 330 and the guide groove 340 are mortised, the first boss 351 and the second boss 352 contact each other to form a limiting fit.

[0031] In this embodiment, the first boss 351 and the second boss 352 contact to form a limiting fit, providing a clear fitting path and assisting construction personnel to install quickly. Only the dovetail tenon 330 needs to be inserted into the guide groove 340 along the short axis of the ellipsoidal body 100, and there will be no over-insertion, avoiding rework caused by over-insertion.

[0032] In this embodiment, the stirrup 120 passes through the first through hole 210 or the second through hole 220, forming different installation states corresponding to the thickness of the protective layer 130.

[0033] In this embodiment, the stirrup 120 can be installed in different ways through the first through hole 210 or the second through hole 220, and can be adapted to different thicknesses of the protective layer 130, thus having a wider range of applications.

[0034] In this embodiment, when the first through hole 210 is installed and fitted with the stirrup 120, a first installation state is formed. At this time, the minor axis length of the ellipsoidal body 100 is equal to the design thickness of the protective layer 130 of the steel cage 140, and the ellipsoidal body 100 can rotate circumferentially around the axis of the stirrup 120.

[0035] In this embodiment, the minor axis length of the ellipsoidal body 100 is equal to the thickness of the designed protective layer 130. The outer edge of the ellipsoidal body 100 naturally forms a positioning reference, which directly abuts against the steel casing 610 during concrete pouring, eliminating deviations and ensuring the thickness of the protective layer 130. The ellipsoidal body 100 can rotate freely, preventing the rebar cage 140 from getting stuck during the lowering process, which facilitates construction. At this time, the split structure allows for direct assembly after the stirrups 120 are in place, without the need to disassemble or adjust the tied rebars, greatly simplifying the construction process, and is especially suitable for complex rebar cage 140 scenarios.

[0036] In this embodiment, when the second through hole 220 is installed and engaged with the stirrup 120, a second installation state is formed. At this time, the major axis length of the ellipsoidal body 100 is greater than the design thickness of the protective layer 130, and the minor axis length of the ellipsoidal body 100 is less than the design thickness of the protective layer 130. The ellipsoidal body 100 rotates within a certain angle range.

[0037] In this embodiment, the major axis of the ellipsoidal body 100 is greater than the designed thickness of the protective layer 130, while the minor axis of the ellipsoidal body 100 is less than the thickness of the protective layer 130. In the second installation state, the major axis of the ellipsoidal body 100 serves as the upper limit of the protective layer 130 thickness, and the minor axis of the ellipsoidal body 100 serves as the lower limit, ensuring minimum effective coverage of the protective layer 130. Within a certain range, different designed thicknesses of the protective layer 130 are corresponding to this design, and all of these designs can achieve effective protection of the protective layer 130. The ellipsoidal body 100 can rotate within a certain angle range to prevent the reinforcing cage 140 from getting stuck during the lowering process, facilitating construction.

[0038] In this embodiment, the ellipsoidal bodies 100 are evenly distributed around the circumference of the steel cage 140, and each ellipsoidal body 100 is sleeved on the outer surface of the stirrup 120 through the first through hole 210 or the second through hole 220.

[0039] In this embodiment, the even distribution of multiple ellipsoidal bodies 100 can disperse the lateral pressure on the reinforcing cage 140 during concrete pouring, avoid local stress concentration, and reduce the risk of deformation or displacement of the reinforcing cage 140. The symmetrically arranged ellipsoidal bodies 100 can better balance the position of the reinforcing cage 140 in the concrete, prevent displacement caused by vibration or flowing concrete during pouring, ensure that each side of the reinforcing cage 140 is equidistant from the steel casing 610, and avoid the protective layer 130 being too thin or too thick in some areas, thus meeting the design specifications.

[0040] In this embodiment, the ellipsoidal body 100 is made of C60 concrete.

[0041] Through this embodiment, C60 concrete has high compressive and impact strength, can withstand the impact of the lowering of the reinforcing cage 140, avoids the crushing failure of the ellipsoidal body 100, and ensures the stability of the thickness of the protective layer 130.

[0042] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A split-type ellipsoidal concrete pad, characterized in that... include: An ellipsoidal body (100) is provided with a first through hole (210) along the long axis for the hoop (120) to pass through, and a second through hole (220) along the short axis for the hoop (120) to pass through. The ellipsoidal body (100) includes two opposing concrete sub-sections (230), and a contact surface (310) is formed at the contact point of the two concrete sub-sections (230). An axial interlocking part (320) is provided on the contact surface (310). The axial interlocking part (320) includes a dovetail tenon (330) formed on the contact surface (310) of one concrete sub-section (230), and a guide groove (340) correspondingly opened on the contact surface (310) of the other concrete sub-section (230). The dovetail tenon (330) is inserted into the guide groove (340) along the short axis of the ellipsoidal body (100), so that the two concrete sub-sections (230) are combined into the ellipsoidal body (100).

2. The split-type ellipsoidal concrete pad block according to claim 1, characterized in that: The contact surface (310) is also provided with a longitudinal limiting part (350). The longitudinal limiting part (350) includes a first boss (351) protruding from the contact surface (310) of a concrete component (230) along the direction of the guide groove (340). The contact surface (310) of another concrete component (230) is provided with a second boss (352) that is compatible with the first boss (351). When the dovetail tenon (330) and the guide groove (340) are mortised, the first boss (351) and the second boss (352) come into contact to form a limiting fit.

3. A split-type ellipsoidal concrete pad according to claim 1, characterized in that: The stirrups (120) pass through the first through hole (210) or the second through hole (220), forming different installation states corresponding to the thickness of the protective layer (130).

4. A split-type ellipsoidal concrete pad according to claim 3, characterized in that: When the first through hole (210) is installed and matched with the stirrup (120), the first installation state is formed. At this time, the minor axis length of the ellipsoidal body (100) is equal to the design thickness of the protective layer (130) of the steel cage (140). The ellipsoidal body (100) can rotate circumferentially around the axis of the stirrup (120).

5. A split-type ellipsoidal concrete pad according to claim 3, characterized in that: When the second through hole (220) is installed and matched with the stirrup (120), a second installation state is formed. At this time, the length of the major axis of the ellipsoidal body (100) is greater than the design thickness of the protective layer (130), and the length of the minor axis of the ellipsoidal body (100) is less than the design thickness of the protective layer (130). The ellipsoidal body (100) rotates within a certain angle range.

6. A split-type ellipsoidal concrete pad according to claim 1, characterized in that: The ellipsoidal bodies (100) are evenly distributed around the circumference of the steel cage (140), and each ellipsoidal body (100) is sleeved on the outer surface of the stirrup (120) through the first through hole (210) or the second through hole (220).

7. A split-type ellipsoidal concrete pad according to claim 1, characterized in that: The ellipsoidal body (100) is made of C60 concrete.

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