Positioning device to prevent steel cage from floating

Abstract

This application discloses a locking device for preventing a reinforcing cage from floating, comprising a reinforcing cage including longitudinal bars and stirrups, and further comprising: a support rod connected to the reinforcing cage; a pressure plate movably disposed on the support rod and located inside the reinforcing cage; an anti-buoyancy rod, one end of which is rotatably connected to the pressure plate; a bottom rod disposed on the support rod; and a diagonal brace, one end of which is rotatably connected to the bottom rod, and the other end of which is rotatably connected to the anti-buoyancy rod. When concrete is poured into the borehole, the concrete is poured towards the pressure plate inside the reinforcing cage. The concrete impacts the pressure plate, causing it to move downwards. Due to the constraints of the pressure plate and the diagonal brace, during the downward movement of the pressure plate, the anti-buoyancy rod is driven to rotate towards the external space of the reinforcing cage, allowing it to insert into the soil or rock strata surrounding the borehole, forming an anchoring effect and providing downward pressure to the reinforcing cage to prevent it from floating.

Description

Technical Field

[0001] This application relates to the field of preventing steel cages from floating, and particularly to a positioning device for preventing steel cages from floating. Background Technology

[0002] In construction engineering, cast-in-place piles are an important component of the foundation structure, and their construction quality directly affects the safety and stability of the entire project. During the construction of cast-in-place piles, the floating of the reinforcing cage is a common and difficult problem to solve. Floating of the reinforcing cage not only affects the bearing capacity of the pile foundation but may also lead to rework, delays, wasted manpower, and economic losses.

[0003] In existing technologies, the weight of the reinforcing cage is increased to prevent it from floating, but increasing the weight of the reinforcing cage increases the difficulty and cost of construction.

[0004] Therefore, it is necessary to propose a positioning device to prevent the steel cage from floating, so as to improve construction efficiency, reduce costs and ensure the stability of the steel cage. This has become an important technical problem that needs to be solved urgently. Utility Model Content

[0005] This application provides a positioning device to prevent the steel cage from floating, aiming to solve the problem in the prior art that the steel cage is prevented from floating by increasing its weight, but increasing the weight of the steel cage will increase the construction difficulty and cost.

[0006] To achieve the above objectives, this application proposes a positioning device to prevent a reinforcing cage from floating, comprising a reinforcing cage including longitudinal bars and stirrups, and further comprising: a support rod connected to the reinforcing cage; a pressure plate movably disposed on the support rod and located inside the reinforcing cage; an anti-buoyancy rod, one end of which is rotatably connected to the pressure plate; a bottom rod disposed on the support rod; and a diagonal brace, one end of which is rotatably connected to the bottom rod, and the other end of which is rotatably connected to the anti-buoyancy rod.

[0007] In some embodiments, the device further includes a conical spike disposed at the other end of the anti-buoyancy rod, the conical spike facilitating the insertion of the anti-buoyancy rod into the soil.

[0008] In some embodiments, the system further includes: a multi-directional connecting base, wherein the multi-directional connecting base is provided with a first sleeve for connecting the support rod, and a second sleeve for connecting the bottom rod.

[0009] In some embodiments, a plurality of second sleeves are provided, and the plurality of second sleeves are circumferentially spaced at the bottom of the first sleeve.

[0010] In some embodiments, it further includes: a rotating shaft, wherein the bottom of the pressure plate is provided with a rotating shaft; and a rotating shaft hole, wherein one end of the anti-buoyancy rod is provided with a rotating shaft hole.

[0011] In some embodiments, the support rod may further include a limiting portion, wherein the limiting portion is provided at the top end of the support rod.

[0012] This application proposes a positioning device to prevent a reinforcing cage from floating. The device includes a reinforcing cage comprising longitudinal bars and stirrups, and further includes: a support rod connected to the reinforcing cage; a pressure plate movably mounted on the support rod and located inside the reinforcing cage; an anti-buoyancy rod, one end of which is rotatably connected to the pressure plate; a bottom rod mounted on the support rod; and diagonal bracing rods, one end of which is rotatably connected to the bottom rod, and the other end of which is rotatably connected to the anti-buoyancy rod. When concrete is poured into the borehole, it is poured towards the pressure plate inside the reinforcing cage. The concrete impacts the pressure plate, causing it to move downwards. Due to the constraints of the pressure plate and the diagonal bracing rods, the downward movement of the pressure plate drives the anti-buoyancy rod to rotate towards the external space of the reinforcing cage, allowing it to insert into the soil or rock strata surrounding the borehole, creating an anchoring effect and providing downward pressure to the reinforcing cage to prevent it from floating. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a three-dimensional structural diagram of a locking device for preventing the steel cage from floating and a steel cage according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the positioning device for preventing the steel cage from floating in one state according to an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the positioning device for preventing the steel cage from floating in one embodiment of this application in another state.

[0017] Figure 4 This is a three-dimensional structural diagram of a multi-directional connection base according to an embodiment of this application;

[0018] Figure 5 This is a three-dimensional structural diagram of an anti-buoyancy rod in one embodiment of this application.

[0019] In the diagram: 1. Longitudinal reinforcement; 2. Stirrups; 3. Compression plate; 4. Support rod; 5. Multi-directional connection base; 6. Bottom rod; 7. Anti-buoyancy rod; 8. Diagonal brace; 9. Rotary shaft; 10. Rotary shaft hole; 11. Soil layer. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0024] See Figure 1 , Figure 2 and Figure 3 As shown, this application proposes a positioning device to prevent a reinforcing cage from floating, including a reinforcing cage, which includes longitudinal bars 1 and stirrups 2, and further includes: a support rod 4 connected to the reinforcing cage; a pressure plate 3 movably disposed on the support rod 4 and located inside the reinforcing cage; an anti-buoyancy rod 7, one end of which is rotatably connected to the pressure plate 3; a bottom rod 6 disposed on the support rod 4; and a diagonal brace 8, one end of which is rotatably connected to the bottom rod 6 and the other end of which is rotatably connected to the anti-buoyancy rod 7.

[0025] In this process, stirrups 2 are welded to multiple circumferentially spaced longitudinal bars 1 to form a reinforcing cage. The reinforcing cage has internal and external spaces. The reinforcing cage needs to be placed into the borehole, and then concrete is poured into the borehole to form a cast-in-place pile. Support rods 4 are located in the internal space of the reinforcing cage and are parallel to the longitudinal bars 1 to improve the pile formation effect.

[0026] The pressure plate 3 is provided with a through hole adapted to the support rod 4, and the pressure plate 3 is movably sleeved on the support rod 4. Due to the constraints of the pressure plate 3 and the diagonal brace 8, during the downward movement of the pressure plate 3, the anti-buoyancy rod 7 will be driven to rotate towards the external space of the reinforcing cage, so that the anti-buoyancy rod 7 can be inserted into the soil layer 11 around the borehole.

[0027] Specifically, when pouring concrete into the borehole, the concrete is poured towards the pressure plate 3 inside the reinforcing cage. At this time, the concrete will impact the pressure plate 3, causing the pressure plate 3 to move downward. Due to the constraints of the pressure plate 3 and the diagonal bracing rod 8, during the downward movement of the pressure plate 3, the anti-buoyancy rod 7 will be driven to rotate towards the external space of the reinforcing cage, so that the anti-buoyancy rod 7 can be inserted into the soil layer 11 or rock layer around the borehole, forming an anchoring effect and providing downward pressure to the reinforcing cage to prevent the reinforcing cage from floating.

[0028] See Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, a conical spike is also included, which is disposed at the other end of the anti-buoyancy rod 7. The conical spike facilitates the insertion of the anti-buoyancy rod 7 into the soil. The conical spike makes it easier for the anti-buoyancy rod 7 to be inserted into the soil, thereby improving its anchoring effect.

[0029] In this embodiment, the anti-buoyancy rod 7 is arc-shaped, so that the angle between the conical tip and the soil is 90° when the conical tip penetrates the soil, making it easier for the conical tip to penetrate the soil.

[0030] See Figure 1 and Figure 4 As shown, in some embodiments, it further includes: a multi-directional connecting base 5, which is provided with a first sleeve for connecting the support rod 4, and a second sleeve for connecting the bottom rod 6. The bottom rod 6 is welded to the longitudinal reinforcement 1 or the stirrup 2 to form a connection between the support rod 4 and the reinforcing cage, and during the welding process, it must be ensured that the support rod 4 is parallel to the longitudinal reinforcement 1 and preferably positioned at the center of the reinforcing cage.

[0031] In this embodiment, different bottom rods 6 and support rods 4 can be selected according to different rebar cage specifications to improve the adaptability of the positioning device for preventing the rebar cage from floating, thereby enhancing the practicality of the positioning device. The support rod 4 is connected to the first sleeve by either screwing or welding, preferably by welding. The bottom rod 6 is connected to the second sleeve by either screwing or welding, preferably by welding.

[0032] See Figure 1 and Figure 4As shown, in some embodiments, multiple second sleeves are provided, and the multiple second sleeves are spaced apart circumferentially at the bottom of the first sleeve. The multiple second sleeves can be connected to multiple base rods 6. The multiple base rods 6 firstly help to improve the stability of the support rod 4, and multiple anti-buoyancy rods 7 can be correspondingly installed on the multiple base rods 6 to ensure the anti-buoyancy effect.

[0033] See Figure 5 As shown, in some embodiments, it further includes: a rotating shaft 9, which is provided at the bottom of the pressure plate 3; and a rotating shaft hole 10, which is provided at one end of the anti-buoyancy rod 7. The rotating shaft 9 includes end plates at both ends and a rotating shaft in the middle. The end plates at both ends are connected to the rotating shaft by welding. One end plate is welded to the rotating shaft, the rotating shaft passes through the rotating shaft hole 10, and the other end plate is welded on. The end plate is then welded to the bottom of the pressure plate 3, thus forming a rotatable connection between the anti-buoyancy rod 7 and the pressure plate 3.

[0034] In this embodiment, the rotational connection between the diagonal brace 8 and the anti-buoyancy rod 7 is the same as the rotational connection between the anti-buoyancy rod 7 and the pressure plate 3, and the rotational connection between the diagonal brace 8 and the bottom rod 6 is the same as the rotational connection between the anti-buoyancy rod 7 and the pressure plate 3. These details will not be repeated here. The other end of the diagonal brace 8 is rotatably connected to the middle section of the anti-buoyancy rod 7.

[0035] See Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, a limiting part is further included, with a limiting part provided at the top end of the support rod 4. The limiting part is used to prevent the pressure plate 3 from detaching from the top of the support rod 4.

[0036] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A positioning device for preventing a steel cage from floating, comprising a steel cage, said steel cage including longitudinal bars (1) and stirrups (2), characterized in that, Also includes: Support rod (4), the support rod (4) is connected to the steel cage; The pressure plate (3) is movably disposed on the support rod (4) and the pressure plate (3) is located inside the steel cage; An anti-buoyancy rod (7) is provided, one end of which is rotatably connected to the pressure plate (3). The bottom rod (6) is disposed on the support rod (4). A diagonal brace (8) is provided, one end of which is rotatably connected to the base rod (6), and the other end of which is rotatably connected to the anti-buoyancy rod (7).

2. The clamping device for preventing the reinforcement cage from floating up according to claim 1, characterized in that, Also includes: A conical spike is provided at the other end of the anti-buoyancy rod (7), which facilitates the insertion of the anti-buoyancy rod (7) into the soil.

3. The clamping device for preventing the reinforcement cage from floating up according to claim 1, characterized in that, Also includes: A multi-directional connecting base (5) is provided with a first sleeve for connecting the support rod (4) and a second sleeve for connecting the bottom rod (6).

4. The clamping device for preventing the reinforcement cage from floating up according to claim 3, characterized in that, Multiple second sleeves are provided, and the multiple second sleeves are arranged at intervals along the circumference at the bottom of the first sleeve.

5. The clamping device for preventing reinforcement cage from floating up according to claim 1, characterized in that, Also includes: Rotating shaft (9), the rotating shaft (9) is provided at the bottom of the pressure plate (3); A pivot hole (10) is provided at one end of the anti-buoyancy rod (7).

6. The clamping device for preventing reinforcement cage from floating up according to claim 1, characterized in that, Also includes: The limiting part is provided at the top of the support rod (4).

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