Reusable steel cage support frame

Abstract

This utility model discloses a reusable steel cage support frame, including a horizontal bar assembly and a support rod. The horizontal bar assembly (1) includes a horizontal bar (11), an extension rod (111), a handle (13), and an L-shaped support rod (14). The two ends of the horizontal bar are bent upward at 90 degrees in the vertical direction to form an extension rod. The horizontal bar and the extension rods at both ends are on the same plane. A handle is provided at the outer end of each extension rod away from the horizontal bar. The handle is perpendicular to the plane where the extension rod and the horizontal bar are located. A large sleeve (12) is movably connected to each end of the horizontal bar. A small sleeve (121) is provided on each side of the large sleeve. The support rod is inserted into the small sleeve. Several L-shaped support rods are set at the bottom of the horizontal bar according to the specifications of the steel cage. The upper main reinforcement is placed on it. Before the concrete sets, the horizontal bar is moved to separate the L-shaped support rods from the upper main reinforcement, so that the steel cage support frame can be taken out for reuse.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, specifically to a reusable steel cage support frame for building projects. Background Technology

[0002] In building construction, before binding the reinforcing bars of a thick, large-volume foundation raft slab, a support frame for the reinforcing bar skeleton must first be prepared. If a proper support frame is not used, it will significantly affect the position of the reinforcing bar skeleton and the thickness of the protective layer, thus impacting the construction quality of the thick, large-volume foundation raft slab. In existing technologies, spacers are typically used to control the thickness and position of the protective layer, and steel stirrups are used as the support frame for the reinforcing bar skeleton of the thick, large-volume foundation raft slab. These steel stirrups are disposable; that is, after the concrete is poured, the steel stirrups remain permanently within the concrete structure. Moreover, as temporary reinforcement, the design unit does not explicitly define or confirm this type of reinforcement in the drawings, making it impossible to accurately calculate the quantity of this reinforcement.

[0003] Chinese patent document CN221682524 U (patent number CN2024200969550, publication date September 10, 2024) discloses a reusable steel bar trestle, comprising an inverted U-shaped frame, a support rod, an inverted U-shaped bracket, and sleeves. The two ends of the inverted U-shaped frame are bent to the same side to form hooks. A sleeve is provided on the inner side of the bend between the inverted U-shaped frame and the hooks. The sleeves are arranged perpendicularly to the two first extension arms of the inverted U-shaped frame, and the two sleeves are arranged coaxially. The support rod is sleeved in the two sleeves. Inverted U-shaped brackets are welded to the lower ends of the support rod. Steel bars on the plate can be placed on the hooks. After the concrete has initially set, the inverted U-shaped frame is pushed to one side to separate the hooks from the steel bars on the plate, and then the steel bar trestle can be taken out for reuse.

[0004] This type of steel reinforcement support has the following three shortcomings: 1. Due to its size and weight limitations, this type of support cannot be made too large. Once the size is too large, its strength, rigidity, and stability are insufficient, thus limiting its application range and making it unsuitable for use in thick, large-volume concrete structures; 2. A significant portion of this type of support protrudes from the surface of the poured concrete, making it easy for workers to trip and compromising construction safety; 3. The height of this type of support cannot be freely adjusted, resulting in poor applicability, low turnover rate, and insignificant economic benefits. Therefore, there is an urgent need to provide a safe and reliable steel cage support frame for the construction of thick, large-volume concrete structures that can effectively ensure the position of the steel reinforcement and can be reused. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to provide a reusable steel cage support frame for use in the construction of thick and large-volume concrete structures.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a reusable steel cage support frame, comprising a horizontal bar assembly and a support rod, wherein the horizontal bar assembly includes a horizontal bar, an extension rod, a handle, and an L-shaped support rod; both ends of the horizontal bar are bent upwards at 90 degrees in the vertical direction to form extension rods, and the horizontal bar and its two extension rods are on the same plane; a handle is provided at the outer end of the extension rod away from the horizontal bar, and this handle is perpendicular to the plane containing the extension rod and the horizontal bar; a large sleeve is movably sleeved at each end of the horizontal bar, and the large sleeve... On each side of the main sleeve, a small sleeve with internal threads is fixed in a direction perpendicular to the axis of the main sleeve; the angle formed by the intersection of the extended axes of the two small sleeves facing the main sleeve is no greater than 60 degrees; each small sleeve is fitted with a support rod; the upper end of the support rod has threads that are threadedly matched with the small sleeve; the support rod is directly supported on the bottom template; several L-shaped support rods are set along the length of the horizontal rod according to the specifications of the reinforcing cage; the plane of the L-shaped support rod is perpendicular to the axis of the horizontal rod, and an upper layer of reinforcing steel bar parallel to the horizontal rod is placed on its upper part.

[0007] Preferably, an L-shaped support rod is installed every 2m along the length of the horizontal bar at the bottom.

[0008] Furthermore, the second technical solution adopted by this utility model is as follows: a reusable steel cage support frame, including a horizontal bar assembly two and a support rod two. The horizontal bar assembly two includes a horizontal bar two and an extension rod two. The two ends of the horizontal bar two are each bent downwards vertically to form an extension rod two. At approximately the middle position of the two extension rods two, a tie rod is inserted horizontally. The two ends of the tie rod are provided with threads two, and the two ends of the tie rod are respectively screwed into nuts two after passing through the extension rods two. Every 2m along the middle of the tie rod, an L-shaped support rod two is provided. The plane of the L-shaped support rod two is parallel to the waterline. The second extension rod consists of a horizontal rod and a tie rod. The end of the second extension rod away from the horizontal rod has external threads, which are threadedly matched with the upper end of the second support rod, which has internal threads. The lower end of the second support rod away from the horizontal rod has a slot that engages with the bottom main reinforcement bars on the thick, large-volume concrete bottom formwork. The second L-shaped support rod is formed by integrally connecting a long straight rod and a short rod. The upper end of the long straight rod is hinged to the horizontal rod and the tie rod respectively via two pins. The lower end of the long straight rod is bent 90 degrees along a direction parallel to the tie rod to form a short rod, on which the upper layer of reinforcing bars rests.

[0009] Compared with the prior art, this utility model has the following advantages: 1. The size and weight of this utility model are not greatly limited, the frame has good stability and strength, and it is safe and reliable to use with a low failure rate and high turnover rate; 2. When using this utility model support frame, its upper surface can be lowered to a position very close to the surface of the poured concrete, so workers are less likely to trip on the concrete surface during construction, and construction safety is guaranteed; 3. The height of this utility model support frame can be freely adjusted, so it has high applicability and can be applied to the construction of thick and large-volume concrete structures of various heights. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a perspective view of the first embodiment of the reusable steel cage support frame of this utility model.

[0012] Figure 2 This is a top view of the first embodiment of the reusable steel cage support frame of this utility model.

[0013] Figure 3 This is a front view of the first embodiment of the reusable steel cage support frame of this utility model.

[0014] Figure 4 This is a side view of the first embodiment of the reusable steel cage support frame of this utility model.

[0015] Figure 5 This is a front view of a second embodiment of the reusable steel cage support frame of this utility model.

[0016] Figure 6 This is a perspective view of a second embodiment of the reusable steel cage support frame of this utility model.

[0017] Figure 7 This is a side view of a second embodiment of the reusable steel cage support frame of this utility model.

[0018] Figure 8 This is a detailed drawing of the L-shaped support rod of the second embodiment of the reusable steel cage support frame of this utility model.

[0019] In the diagram: 1-Horizontal bar assembly one, 11-Horizontal bar one, 111-Extension bar one, 12-Large sleeve, 121-Small sleeve, 13-Handle, 14-L-shaped support rod one, 2-Support rod one, 21-Thread one, 3-Upper layer steel bar, 4-Lower bottom main steel bar, 5-Horizontal bar assembly two, 51-Horizontal bar two, 511-Extension rod two, 52-Pin, 53-Tie rod, 531-Thread two, 532-Nut two, 54-L-shaped support rod two, 541-Long straight rod, 542-Short rod, 6-Support rod two, 61-Slot, 7-Bottom template. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 4 The first type of reusable steel cage support frame shown includes a horizontal bar assembly 1 comprising a horizontal bar 11, an extension bar 111, a handle 13, and an L-shaped support bar 14. Both ends of the horizontal bar 11 are bent upwards at a 90-degree angle in the vertical direction to form extension bars 111, which are on the same plane as the horizontal bar 11 and its extension bars 111. A handle 13 is provided at the outer end of the extension bar 111 away from the horizontal bar 11, and this handle 13 is perpendicular to the plane containing the extension bars 111 and the horizontal bar 11. A large sleeve 12 is movably fitted at both ends of the horizontal bar 11, and the large sleeve 12 has its sides extending along the direction of the sleeve. A small sleeve 121 with internal threads is fixed in a direction perpendicular to the axis; the angle formed by the intersection of the extended axes of the two small sleeves 121 facing the large sleeve 12 is no greater than 60 degrees; each small sleeve 121 is fitted with a support rod 2; the upper end of the support rod 2 is provided with threads 21, and is threadedly matched with the small sleeve 121; the support rod 2 is directly supported on the bottom template 7; several L-shaped support rods 14 are set along the length of the horizontal rod 11 according to the specifications of the steel cage; the plane of the L-shaped support rod 14 is perpendicular to the axis of the horizontal rod 11, and an upper steel bar 3 parallel to the horizontal rod 11 is placed on its upper part.

[0022] An L-shaped support rod 14 is installed every 2m along the length of the horizontal rod 11.

[0023] like Figures 5 to 8The image shows a second type of reusable steel cage support frame, comprising a second horizontal bar assembly and a second support rod. The second horizontal bar assembly includes a second horizontal bar 51 and a second extension bar 511. Both ends of the second horizontal bar 51 are bent downwards vertically to form the second extension bar 511. A tie rod 53 is inserted horizontally at approximately the midpoint of the two extension bars 511. The tie rod 53 has threads 531 at both ends, and nuts 532 are screwed into each end after passing through the extension bars 511. An L-shaped support rod 54 is installed every 2 meters along the middle of the tie rod, with the plane of the L-shaped support rod 54 parallel to the second horizontal bar 51 and the tie rod 53. The extension rod... The end of the second rod 51 away from the horizontal rod 51 is provided with an external thread, which is threadedly matched with the support rod 6, which is provided with an internal thread at the upper end. The lower end of the support rod 6 away from the horizontal rod 51 is provided with a slot 61, which is engaged with the bottom main reinforcement 4 on the thick and large volume concrete bottom formwork 7. The L-shaped support rod 54 is formed by integrally connecting a long straight rod 541 and a short rod 542. The upper end of the long straight rod 541 is hinged to the horizontal rod 51 and the tie rod 53 respectively through two pins 52. The lower end of the long straight rod 541 is bent at 90 degrees along a direction parallel to the tie rod 53 to form the short rod 542, on which the upper layer of steel reinforcement 3 is placed.

[0024] In the actual operation of the first embodiment of this utility model, when using it, four support rods are inserted into the four small sleeves 121 at both ends of the horizontal rod, and the support rods are supported on the bottom formwork 7 of the structural slab. The height of the support rods is adjusted according to the height of the concrete structural slab. During use, the upper main reinforcement bars of the slab are placed on the L-shaped support rods 14 fixed at the bottom of the horizontal rod without the need for binding. Compared with the traditional steel reinforcement trestles, this method effectively ensures the position of the reinforcement bars, is easy to dismantle and reuse, and brings good economic benefits. After the concrete has initially set and the position of the upper main reinforcement bars is fixed, the horizontal rod is pushed to one side to separate the L-shaped support rods from the upper main reinforcement bars above them. The support rods are then pulled out, and the steel cage support frame can be removed for reuse. After removing the steel cage support frame, the holes in the structural slab where the steel cage support frame is located are filled and smoothed with a trowel, and the concrete slag is cleaned off to complete the entire work.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used merely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "component one" and "component two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features. Thus, a feature defined as "component one" or "component two" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] The above specific examples illustrate the principles and implementation methods of this utility model in detail. These embodiments are only used to help understand the core technical content of this utility model and are not intended to limit the scope of protection of this utility model. The technical solution of this utility model is not limited to the above specific embodiments. Based on the above specific embodiments of this utility model, any improvements and modifications made to this utility model by those skilled in the art without departing from the principles of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A reusable steel cage support frame, comprising a horizontal bar assembly and a support rod, characterized in that: The horizontal rod assembly (1) includes a horizontal rod (11), an extension rod (111), a handle (13), and an L-shaped support rod (14). The two ends of the horizontal rod (11) are each bent upwards at a 90-degree angle in the vertical direction to form an extension rod (111). The horizontal rod (11) and the extension rods (111) at both ends are on the same plane. A handle (13) is provided at the outer end of the extension rod (111) away from the horizontal rod (11). This handle (13) is perpendicular to the plane where the extension rod (111) and the horizontal rod (11) are located. A large sleeve (12) is movably sleeved at each end of the horizontal rod (11). On both sides of the large sleeve (12), a direction perpendicular to the axis of the large sleeve is provided. A small sleeve (121) with internal threads is fixed; the angle formed by the intersection of the extended axes of the two small sleeves (121) facing the large sleeve (12) is no greater than 60 degrees; each small sleeve (121) is fitted with a support rod (2); the upper end of the support rod (2) is provided with threads (21) and is threadedly matched with the small sleeve (121); the support rod (2) is directly supported on the bottom template (7); several L-shaped support rods (14) are set along the length of the horizontal rod (11) according to the specifications of the steel cage; the plane of the L-shaped support rod (14) is perpendicular to the axis of the horizontal rod (11), and an upper steel bar (3) parallel to the horizontal rod (11) is placed on its upper part.

2. The reusable steel cage support frame according to claim 1, characterized in that: The lower part of the horizontal bar (11) is provided with an L-shaped support rod (14) every 2m along the length direction.

3. A reusable steel cage support frame, comprising a second horizontal bar assembly and a second support rod, characterized in that: The horizontal bar assembly 2 (5) includes a horizontal bar 2 (51) and an extension bar 2 (511). The two ends of the horizontal bar 2 (51) are each bent downwards vertically to form an extension bar 2 (511). A tie rod (53) is inserted horizontally at approximately the middle position of the two extension bars 2 (511). The two ends of the tie rod (53) are provided with threads 2 (531). The two ends of the tie rod (53) pass through the extension bars 2 (511) and are screwed into nuts 2 (532). An L-shaped support rod 2 (54) is provided every 2m in the middle of the tie rod. The plane of the L-shaped support rod 2 (54) is parallel to the horizontal bar 2 (51) and the tie rod (53). The end of the extension bar 2 (511) away from the horizontal bar 2 (51) is provided with a The external thread is threaded and connected to the support rod two (6) with the internal thread at the upper end. The support rod two (6) is provided with a slot (61) at the lower end away from the horizontal rod two (51). The slot (61) is locked on the bottom main bar (4) on the thick and large volume concrete bottom formwork (7). The L-shaped support rod two (54) is formed by a long straight rod (541) and a short rod (542) connected together. The upper end of the long straight rod (541) is hinged to the horizontal rod two (51) and the tie rod (53) respectively through two pins (52). The lower end of the long straight rod (541) is bent at 90 degrees along the direction parallel to the tie rod (53) to form a short rod (542). The upper layer of steel bars (3) is placed on the short rod (542).

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