Control device for preventing reinforcement cage from floating upwards
By designing a control device for preventing the floating of the steel cage including a limiting mechanism and a cutting mechanism, the problem of the steel cage floating during the concrete pouring process is solved, and the stable lowering and efficient construction of the steel cage are achieved.
Patent Information
- Application Number
- CN202422167163.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the construction of reinforced concrete cast-in piles, the steel cage is prone to float up due to the impact force and buoyancy of the concrete, resulting in poor pile quality, displacement of the steel cage, long leakage of steel bars and serious waste of steel bars. The traditional anti-float method has poor effect, waste of labor, and slow construction speed.
A control device is designed to prevent the floating of the steel cage from being carried out, including a limiting mechanism and a cutting mechanism. The limiting mechanism consists of a vertically installed vertical shaft, a bendable limiting steel bar and a thin rope. The two ends of the limiting steel bar extend out of the steel bar cage and are connected by a thin rope, and the bending direction is towards the hole opening; the cutting mechanism consists of a sleeve, a draw rope and an anti-error cutting mechanism, which is used to cut the string to prevent improper operation.
Effectively prevent the steel cage from floating during concrete pouring, avoid the thin rope being cut off when the steel cage is not lowered, improve construction efficiency, and reduce labor and steel waste.
Smart Images
Figure CN222990799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti - floating treatment of steel reinforcement cages, and specifically relates to a control device for preventing the steel reinforcement cage from floating upward. Background Technique
[0002] Due to the improvement of people's living quality level, the requirements for buildings are getting higher and higher. In order to meet people's requirements, construction units continuously strengthen their own development, improve the quality of building construction, and ensure the stability and safety of buildings after they are put into use.
[0003] Since the construction technology of reinforced concrete cast - in - place piles is simple, has good stability, strong bearing capacity, can reduce the settlement amount, and can meet the requirements of buildings for the foundation, the construction technology of reinforced concrete cast - in - place piles has been widely used in building construction in our country. It not only ensures the quality of building construction, but also improves the overall stability and safety of buildings.
[0004] During the concrete pouring process of reinforced concrete cast - in - place piles, the concrete is poured into the hole from the center through the delivery pipe and rises along the hole from the periphery of the hole. The steel reinforcement cage will float upward under the action of the upward impact force and buoyancy of the concrete, resulting in poor pile quality, displacement of the steel reinforcement cage, long exposed steel bars, serious waste of steel bars, and even causing abandoned piles in severe cases. Traditional anti - floating methods generally use manual pressing with square timbers, controlling the concrete pouring speed, etc. to control the upward floating of the steel reinforcement cage, but these methods all have problems such as poor effect, waste of labor, and slow construction speed.
[0005] Therefore, a control device for preventing the steel reinforcement cage from floating upward is proposed. Content of the Utility Model
[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a control device for preventing the steel reinforcement cage from floating upward.
[0007] The purpose of the utility model is realized through the following technical solutions:
[0008] A control device for preventing the steel reinforcement cage from floating upward, the steel reinforcement cage is vertically installed in a vertical hole in the soil body, and includes a limiting mechanism and a cutting mechanism. The limiting mechanism includes a vertical shaft vertically installed in the steel reinforcement cage, at least one bendable limiting steel bar horizontally penetrating the vertical shaft, and a thin rope. Both ends of the limiting steel bar extend out of the steel reinforcement cage; both ends of the limiting steel bar are connected by the thin rope, the thin rope makes the limiting steel bar in a bent shape, and the bending direction of the limiting steel bar faces the opening of the vertical hole; the cutting mechanism for cutting the thin rope is arranged on the vertical shaft.
[0009] Further, in the present utility model, the cutting mechanism includes a sleeve vertically slidably disposed on the vertical shaft, a pulling rope connected to the sleeve, and an anti-mis-cutting mechanism connected to the pulling rope. The sleeve is located between the thin rope and the limiting steel bar, and a cutting knife is provided at one end of the sleeve close to the thin rope.
[0010] Further, in the present utility model, the pulling rope includes a main rope and a first pulling rope connected in sequence. One end of the first pulling rope far from the main rope is connected to the sleeve; the anti-mis-cutting mechanism is connected to the main rope.
[0011] Further, in the present utility model, the anti-mis-cutting mechanism includes a second pulling rope connected to the main rope, a limiting pin connected to the free end of the second pulling rope, a first lifting lug provided on the sleeve, a second lifting lug provided on the vertical shaft, and an easily breakable rod. The second lifting lug is located below the first lifting lug; through holes adapted to the limiting pin are provided on both the first lifting lug and the second lifting lug, and the limiting pin is sequentially passed through the two through holes; the easily breakable rod is passed through one end of the limiting pin far from the second pulling rope, the length of the easily breakable rod is greater than the diameter of the through hole, and the easily breakable rod is located below the second lifting lug; when the second pulling rope is in a straightened state, the first pulling rope is in a bent state.
[0012] Further, in the present utility model, water stop rings are provided at both ends of the limiting steel bar, and any of the water stop rings is located outside the steel reinforcement cage.
[0013] The beneficial effects of the present utility model are as follows:
[0014] The present utility model provides a control device for preventing the floating of the steel reinforcement cage. A limiting mechanism and a cutting mechanism are installed on the steel reinforcement cage. When the steel reinforcement cage is lowered in place in the vertical hole, during the process of pouring concrete into the steel reinforcement cage, due to the existence of the limiting steel bar, the steel reinforcement cage cannot move upward (float). Among them, when the steel reinforcement cage is lowered in the vertical hole, if the sleeve is accidentally pulled upward during the lowering process, the second pulling rope is first in a straightened state during the upward movement of the sleeve. At this time, if the main rope is pulled again, due to the existence of the easily breakable rod, the pulling will be hindered. After the construction personnel feel this resistance, they immediately stop pulling the main rope, thereby avoiding the situation that the thin rope is cut when the steel reinforcement cage is not lowered in place. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural view of an embodiment of the present utility model;
[0016] Figure 2 is Figure 1 the top view of
[0017] Figure 3 isFigure 1 Partial enlarged view at position A
[0018] Figure 4 It is a schematic structural diagram after the limiting steel bars of the embodiment of the present utility model are extended in place.
[0019] In the figure: 101 - steel cage; 201 - soil body; 301 - vertical hole; 401 - vertical shaft; 402 - limiting steel bar; 403 - thin rope; 501 - sleeve; 502 - main rope; 503 - first pulling rope; 601 - second pulling rope; 602 - limiting pin; 603 - first lifting lug; 604 - second lifting lug; 605 - easily breakable rod; 701 - water stop ring. Specific implementation manners
[0020] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.
[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0022] A control device for preventing the floating of a steel cage. The steel cage 101 is vertically installed in a vertical hole 301 in a soil body 201, and includes a limiting mechanism and a cutting mechanism. The limiting mechanism includes a vertical shaft 401 vertically installed in the steel cage 101, at least one bendable limiting steel bar 402 horizontally penetrating the vertical shaft 401, and a thin rope 403. Both ends of the limiting steel bar 402 extend out of the steel cage 101; both ends of the limiting steel bar 402 are connected by the thin rope 403, the thin rope 403 makes the limiting steel bar 402 in a bent shape, and the bending direction of the limiting steel bar 402 faces the opening of the vertical hole 301; the cutting mechanism for cutting the thin rope 403 is arranged on the vertical shaft 401.
[0023] In order to facilitate cutting the thin rope 403, the cutting mechanism includes a sleeve 501 vertically slidably arranged on the vertical shaft 401, a pulling rope connected to the sleeve 501, and an anti-mis-cutting mechanism connected to the pulling rope. The sleeve 501 is located between the thin rope 403 and the limiting steel bar 402, and a cutting knife is arranged at one end of the sleeve 501 close to the thin rope 403.
[0024] In order to facilitate separately controlling the sleeve 501 and the anti-mis-cutting mechanism, the pulling rope includes a main rope 502 and a first pulling rope 503 connected in sequence. One end of the first pulling rope 503 away from the main rope 502 is connected to the sleeve 501; the anti-mis-cutting mechanism is connected to the main rope 502.
[0025] Specifically, the anti-mis-cutting mechanism includes a second pulling rope 601 connected to the main rope 502, a limit pin 602 connected to the free end of the second pulling rope 601, a first lifting lug 603 arranged on the sleeve 501, a second lifting lug 604 arranged on the vertical shaft 401, and an easily breakable rod 605. The second lifting lug 604 is located below the first lifting lug 603. Through holes adapted to the limit pin 602 are provided on both the first lifting lug 603 and the second lifting lug 604, and the limit pin 602 passes through the two through holes in sequence. The easily breakable rod 605 is passed through one end of the limit pin 602 away from the second pulling rope 601. The length of the easily breakable rod 605 is greater than the diameter of the through hole, and the easily breakable rod 605 is located below the second lifting lug 604. When the second pulling rope 601 is in a straightened state, the first pulling rope 503 is in a bent state.
[0026] In this embodiment, the function of the anti-mis-cutting mechanism is as follows: During the process of lowering the steel reinforcement cage 101, if the sleeve 501 is accidentally pulled upward, and if the cutting knife at the top of the sleeve 501 abuts against the thin rope 403 before the steel reinforcement cage 101 is lowered in place, the thin rope 403 will be cut immediately at this time. After the thin rope 403 is cut, the limit steel bar 402 will straighten immediately, and its two ends will extend into the soil body 201, so that the limit steel bar 402 will limit the descent of the steel reinforcement cage 101. Therefore, in order to avoid this problem, the anti-mis-cutting mechanism is specifically designed. When the steel reinforcement cage 101 moves downward in the vertical hole 301 and accidentally pulls the sleeve 501 upward, the second pulling rope 601 is first in a straightened state during the upward movement of the sleeve 501. At this time, if the main rope 502 is pulled again, due to the existence of the easily breakable rod 605, the pulling will be hindered. After the construction personnel feel this resistance, they will immediately stop pulling the main rope 502, thus avoiding the situation where the thin rope 403 is cut when the steel reinforcement cage 101 is not lowered in place.
[0027] As Figure 4 shown, in order to prevent the water in the soil body 201 from flowing into the vertical hole 301 through the limit steel bar 402 after the limit steel bar 402 is inserted into the soil body 201, a water stop ring 701 is installed at appropriate positions at both ends of the limit steel bar 402, and any water stop ring 701 is located outside the steel reinforcement cage 101.
[0028] Working principle:
[0029] Before placing the steel reinforcement cage 101 into the vertical hole 301, the limit mechanism and the cutting mechanism need to be installed on the steel reinforcement cage 101 first.
[0030] First, place the vertical shaft 401 into the steel reinforcement cage 101. Then, horizontally insert the limiting steel bars 402 through the vertical shaft 401, and make both ends of the vertical shaft 401 extend out of the steel reinforcement cage 101. Then, install two water stop sheets at appropriate positions at both ends of the limiting steel bars 402. Then, install the sleeve 501 on the vertical shaft 401, and make the limit pin 602 pass through the first lifting ear 603 and the second lifting ear 604 in sequence. Then, install the easily breakable part at the bottom of the limit pin 602, so that the limit pin 602 cannot move upward away from the two lifting ears under the action of an upward pulling force. Then, use a thin rope 403 to connect both ends of the limiting steel bars 402, and make the limiting steel bars 402 in a bent state, and its bending direction faces the opening of the vertical hole 301.
[0031] After both the limiting mechanism and the cutting mechanism are installed, the steel reinforcement cage 101 can be lowered into the vertical hole 301. During the process of the steel reinforcement cage 101 falling in the vertical hole 301, since the limiting steel bars 402 are bent towards the opening of the vertical hole 301, the two ends of the limiting steel bars 402 will not affect the falling of the steel reinforcement cage 101.
[0032] After the steel reinforcement cage 101 falls in place, pull the main rope 502 upward. During the process of pulling the main rope 502 upward, the second pull rope 601 is first in a straightened state. After the second pull rope 601 is in a straightened state, continue to pull the main rope 502 upward. When the pulling force on the second pull rope 601 is greater than the breaking force of the easily breakable rod 605, the easily breakable rod 605 breaks, and at this time the limit pin 602 disengages from the two lifting ears. After disengagement, the first pull rope 503 is in a straightened state under the pulling of the main rope 502. Then, the sleeve 501 moves upward under the pulling forces of the main rope 502 and the first pull rope 503. When the cutting knife at the upper end of the sleeve 501 abuts against the thin rope 403, the thin rope 403 is cut off by the cutting knife. After the thin rope 403 is cut off, the sleeve 501 is pulled out for reuse.
[0033] After the thin rope 403 is cut off, as Figure 4 shown, after the limiting steel bars 402 are no longer restricted by the thin rope 403, they straighten, and both ends of the limiting steel bars 402 extend into the soil body 201 until one side of the water stop ring 701 abuts against the inner side wall of the vertical hole 301, that is, the limiting is completed. Thereafter, during the process of pouring concrete into the steel reinforcement cage 101, the steel reinforcement cage 101 cannot move upward (float) due to the existence of the limiting steel bars 402.
[0034] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in the relevant field. As long as the changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, they should all be within the protection scope of the appended claims of the present invention.
Claims
1. A control device for preventing a steel cage from floating up, wherein the steel cage (101) is vertically installed in a vertical hole (301) in a soil body (201), characterized in that: The invention comprises a limiting mechanism and a cutting mechanism, wherein the limiting mechanism comprises a vertical shaft (401) vertically installed in the steel cage (101), at least one bendable limiting steel bar (402) and a thin rope (403) transversely passed through the vertical shaft (401), both ends of the limiting steel bar (402) extend out of the steel cage (101); the two ends of the limiting steel bar (402) are connected by the thin rope (403), the thin rope (403) makes the limiting steel bar (402) bend, and the bending direction of the limiting steel bar (402) faces the opening of the vertical hole (301); the cutting mechanism for cutting the thin rope (403) is arranged on the vertical shaft (401).
2. A control device for preventing a steel cage from floating up according to claim 1, characterized in that: The cutting mechanism comprises a sleeve (501) vertically slidably arranged on the vertical shaft (401), a pull rope connected to the sleeve (501), and an anti-miscutting mechanism connected to the pull rope, wherein the sleeve (501) is located between the thin rope (403) and the limiting steel bar (402), and a cutting knife is arranged at one end of the sleeve (501) close to the thin rope (403).
3. A control device for preventing steel cage from floating up according to claim 2, characterized in that: The pull rope comprises a main rope (502) and a first pull rope (503) connected in sequence, wherein one end of the first pull rope (503) away from the main rope (502) is connected to the sleeve (501); and the anti-miscutting mechanism is connected to the main rope (502).
4. A control device for preventing a steel cage from floating up according to claim 3, characterized in that: The anti-miscutting mechanism comprises a second pull rope (601) connected to the main rope (502), a limit pin (602) connected to the free end of the second pull rope (601), a first lifting lug (603) arranged on the sleeve (501), a second lifting lug (604) arranged on the vertical axis (401) and a breakable rod (605), wherein the second lifting lug (604) is located below the first lifting lug (603); both the first lifting lug (603) and the second lifting lug (604) are A through hole adapted to the limit pin (602) is provided, and the limit pin (602) is sequentially inserted into the two through holes; the easily-breakable rod (605) is inserted into one end of the limit pin (602) away from the second pull rope (601), the length of the easily-breakable rod (605) is greater than the diameter of the through hole, and the easily-breakable rod (605) is located below the second lifting ear (604); when the second pull rope (601) is in a straightened state, the first pull rope (503) is in a bent state.
5. The control device for preventing the steel cage from floating up according to claim 2 is characterized in that: Both ends of the limiting steel bar (402) are provided with water stop rings (701), and any of the water stop rings (701) is located outside the steel bar cage (101).