Anti-sinking device for reinforcement cage
By using a movable rod and connecting bolts to adjust the height of the limiting mechanism in the anti-sinking device for the rebar cage, the problem of the rebar cage sinking or floating during the full casing method construction was solved, thus achieving the stability of the rebar cage and the smooth extraction of the casing, and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU SHENZHEN SOUTHERN CONSTR INVESTMENT CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, during the construction of the full casing method, the reinforcing cage is prone to sinking or floating during hoisting and grouting, which affects the extraction of the casing and reduces construction efficiency.
A device for preventing the sinking of a rebar cage is designed. By adjusting the height of the limiting mechanism through the movable rod and connecting bolts inside the fixed rod, and combining the contact between the support plate and the bottom of the hole in the ground, the rebar cage is pulled and limited, ensuring its stability during the grouting process.
It effectively prevents the steel cage from sinking or floating during the grouting process, ensures the stable extraction of the casing, and improves construction efficiency.
Smart Images

Figure CN224106396U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, and particularly relates to a steel reinforcement cage anti-sinking device. BACKGROUND
[0002] Building construction refers to the production activities in the implementation phase of engineering construction, is the building process of various buildings, and can also be said to be the process of turning various lines on design drawings into real objects at specified locations. It includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction and the like. The full casing method is also known as the Benoit method, which uses a steel casing to be inserted into the soil layer and cooperates with a shaking device to reduce the friction resistance between the casing and the soil body, synchronously completes the soil grabbing and casing pressing, and prevents hole wall collapse. The core lies in casing whole-process wall protection, without mud slurry assistance, and realizes dry hole forming.
[0003] The anti-sinking and anti-floating device for a steel reinforcement cage disclosed in Patent Publication No. CN213390096U relates to the technical field of pile foundation construction. It comprises a sinking plate provided with through holes and coaxially assembled with the steel reinforcement cage during use, and a connecting assembly fixedly assembled on the sinking plate and used for connecting the end of the steel reinforcement cage. The connecting assembly includes a plurality of connecting rods partially embedded in the sinking plate and corresponding to the end of the steel reinforcement cage during use. The part of the connecting rods embedded in the sinking plate is provided with a bending portion. The connecting assembly further includes a plurality of positioning rods assembled on the connecting rods to define the relative positions of the connecting rods. The sinking plate is made of concrete. The above technical solution has the advantages of effectively preventing the sinking and floating of the steel reinforcement cage, simple structure, and low cost.
[0004] The prior art has the following disadvantages: Figure 1 As shown in the figure, the existing full casing method construction cast-in-place pile steel reinforcement cage is supported at the hole opening by a temporary channel steel when the last section of the steel reinforcement cage is hoisted to the hole opening position during the construction process. The top elevation of the casing is measured by a level, the length of the lifting steel is calculated according to the top elevation of the steel reinforcement cage, the lifting ring is hung on the lifting steel, and then slowly lowered to the designed position. Parallel channel steels are inserted into the two lifting rings, the channel steels are laid horizontally on the sleepers, the whole cage body is hung on the square wood on both sides of the top end of the casing, and the position and height of the steel reinforcement cage are ensured to be accurate. Since the full casing method requires pouring and pulling out the casing and guide pipe simultaneously when pouring concrete, the above-mentioned traditional lifting steel method fixes the position of the steel reinforcement cage, but affects the pulling out of the casing, thereby affecting the efficiency of building construction. UTILITY MODEL CONTENTS
[0005] The utility model discloses a reinforcing cage anti -subsidence device, through the activity of movable rod in the fixed rod inside can adjust the height of limiting mechanism, and the fixed hole is passed through the connecting bolt and is connected with the adjacent adjusting hole inner wall screw thread and can fix the movable rod after adjusting, and then through the contact of support plate and ground hole bottom can tow and limit the reinforcing cage, to solve the above -mentioned insufficient place in the technology.
[0006] In order to realize the above -mentioned purpose, the utility model provides the following technical scheme: a reinforcing cage anti -subsidence device, including setting in the inside of ground hole's pouring mechanism, still including:
[0007] The limiting mechanism is arranged at the bottom of the pouring mechanism and is used for supporting and limiting the pouring mechanism.
[0008] The limiting mechanism includes two fixed rods arranged at both ends of the bottom of the pouring mechanism, a fixed hole is formed in the bottom of the outer wall of one side of the fixed rod, a movable rod is movably inserted into the inner wall of the fixed rod, a plurality of adjusting holes are equidistantly formed in the outer wall of one side of the movable rod, a connecting bolt is arranged between one of the adjusting holes and the fixed hole, and a support plate is fixedly installed at the bottom of the two movable rods.
[0009] Preferably, the pouring mechanism includes a sleeve arranged inside the ground hole, a reinforcing cage is movably inserted into the inside of the sleeve, and four positioning steels are annularly welded at the top of the outer wall of the reinforcing cage at equal intervals.
[0010] Preferably, a lifting bar is welded at each end of the top of the reinforcing cage, a lifting ring is fixedly installed at the top of each of the two lifting bars, and the bottom of the reinforcing cage is welded with the two fixed rods respectively, and a limiting groove is formed in the inner wall of the fixed rod away from the fixed hole.
[0011] Preferably, a sliding block is fixedly installed on the outer wall of one side of the movable rod away from the adjusting hole, and the outer wall of the sliding block is movably connected with the inner wall of the adjacent limiting groove.
[0012] Preferably, the diameter size of the support plate is smaller than the outer diameter size of the reinforcing cage, the diameter size of the fixed rod is smaller than the diameter size of a single steel bar of the reinforcing cage, and the inner diameter size of the fixed rod is the same as the outer diameter size of the movable rod.
[0013] Preferably, the inner wall of the fixed hole is screw-connected with the outer wall of the adjacent connecting bolt, and the side of the connecting bolt away from the fixed hole is screw-connected with the inner wall of the adjacent adjusting hole.
[0014] In the above technical scheme, the utility model provides the technical effect and advantage:
[0015] 1、By welding the fixed rod to the bottom of the reinforcement cage, then by pulling the movable rod to move inside the fixed rod, by changing the connection relationship between the plurality of adjusting holes and the fixed holes, the height of the limiting mechanism can be adjusted, then by connecting the bolt through the fixed hole and screwing with the inner wall of the adjacent adjusting hole, the limiting mechanism can be conveniently adjusted according to the distance between the bottom of the reinforcement cage and the hole bottom, so that the limiting mechanism can stably support and limit the reinforcement cage, so that the reinforcement cage can remain stable during pouring, and the stability of the sleeve can be guaranteed.
[0016] 2、The movement of the sliding block can be limited by the limiting groove, so that the movable rod can remain stable during movement, and the offset of the movable rod during movement can be avoided, so that the adjusting hole can be stably communicated with the fixed hole, and the adjusted movable rod can be stably fixed. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0018] Figure 1 It is a stereoscopic structure diagram of the prior art pouring mechanism.
[0019] Figure 2 It is a stereoscopic structure diagram of the present application.
[0020] Figure 3 It is a stereoscopic structure diagram of the limiting mechanism of the present application.
[0021] Figure 4 It is a partial sectional structure diagram of the limiting mechanism of the present application.
[0022] Figure 5 It is an enlarged view of A of the present application. Figure 4
[0023] Figure 6 It is an exploded view of the limiting mechanism of the present application.
[0024] Explanation of the drawings:
[0025] 1、Pouring mechanism; 101、Sleeve; 102、Reinforcement cage; 103、Positioning steel bar; 104、Hanging bar; 105、Lifting ring;
[0026] 2, limit mechanism; 201, fixed rod; 202, fixed hole; 203, limit slot; 204, movable rod; 205, adjusting hole; 206, slider; 207, connecting bolt; 208, support plate. DETAILED DESCRIPTION
[0027] The utility model provides a kind of steel reinforcement cage anti subsidence device as Figure 2 As shown in a kind of steel reinforcement cage anti subsidence device, including being set to inside the ground hole pouring mechanism 1, it further include the limit mechanism 2 being set to pouring mechanism 1 bottom, for supporting and limiting pouring mechanism 1.
[0028] In order to make steel reinforcement cage 102 keep stable during pouring, as Figures 2-6 As shown in the limit mechanism 2 includes two fixed rods 201 being set to the bottom of pouring mechanism 1 both ends, fixed hole 202 is opened in the bottom of one side outer wall of fixed rod 201, movable rod 204 is movably inserted in the inner wall of fixed rod 201, a plurality of adjusting holes 205 are equidistantly opened in the one side outer wall of movable rod 204, connecting bolt 207 is arranged between one adjusting hole 205 and fixed hole 202, support plate 208 is fixedly installed at the bottom of two movable rods 204, two fixed rods 201 are respectively welded to the main reinforcement on the bottom of both ends of steel reinforcement cage 102, the connection between adjusting hole 205 and fixed hole 202 can be changed by moving movable rod 204 in fixed rod 201, then using connecting bolt 207 is penetrated through fixed hole 202 and is screw-threadedly connected with the inner wall of adjacent adjusting hole 205, so that the adjusted movable rod 204 keeps stable, in turn, the height of limit mechanism 2 can be conveniently adjusted according to the distance between the bottom of steel reinforcement cage 102 and the bottom of hole, so that support plate 208 and the bottom structure of hole, steel reinforcement cage 102 can be stably supported and limited.
[0029] In order to conveniently pour by full casing method, as Figure 2 And Figures 4-5As shown, the pouring mechanism 1 comprises a sleeve 101 arranged inside the ground hole, a reinforcement cage 102 movably inserted into the sleeve 101, four positioning steels 103 annularly welded at equal intervals at the top of the outer wall of the reinforcement cage 102, a hanging steel 104 welded at the top of each end of the reinforcement cage 102, a lifting ring 105 fixedly installed at the top of each of the two hanging steels 104, and two fixed rods 201 welded at the bottom of the reinforcement cage 102, wherein a limiting groove 203 is formed in the inner wall of each of the two fixed rods 201 away from the fixed hole 202. During pouring, the sleeve 101 is arranged on the inner wall of the hole, the reinforcement cage 102 is placed inside the hole and in the sleeve 101 through the lifting ring 105 and the hanging steel 104, and then the limiting mechanism 2 is brought into contact with the hole at the bottom. When the concrete is poured, the sleeve 101 is pulled out upward while pouring, so that the supporting plate 208 remains stable at the bottom of the hole under the action of the concrete, and the reinforcement cage 102 is stably limited by the limiting mechanism 2.
[0030] In order to keep the movable rod 204 stable during movement, as shown, Figures 3-6 The outer wall of the movable rod 204 away from the adjusting hole 205 is fixedly installed with a sliding block 206, the outer wall of the sliding block 206 is movably connected with the inner wall of the adjacent limiting groove 203, the diameter of the supporting plate 208 is smaller than the outer diameter of the reinforcement cage 102, the diameter of the fixed rod 201 is smaller than the diameter of a single steel bar of the reinforcement cage 102, the inner diameter of the fixed rod 201 is the same as the outer diameter of the movable rod 204, the inner wall of the fixed hole 202 is threadedly connected with the outer wall of the adjacent connecting bolt 207, and the side of the connecting bolt 207 away from the fixed hole 202 is threadedly connected with the inner wall of the adjacent adjusting hole 205. During movement of the movable rod 204, the sliding block 206 on one side of the outer wall of the movable rod 204 can move along the inner wall of the adjacent limiting groove 203, so that the movable rod 204 remains stable during movement, and the adjusting hole 205 can be stably communicated with the fixed hole 202, so that the connecting bolt 207 can stably fix the adjusted movable rod 204 by penetrating the inner wall of the fixed hole 202 and being threadedly connected with the inner wall of the adjacent adjusting hole 205.
[0031] During the whole casing method construction process, the movable rod 204 is stretched or retracted according to the height between the hole bottom and the bottom of the reinforcement cage 102, so that the movable rod 204 moves in the fixed rod 201, and the sliding block 206 can move along the inner wall of the adjacent limiting groove 203, thereby the connection relationship between the plurality of adjusting holes 205 and the fixed holes 202 can be changed stably, and the height of the limiting mechanism 2 can be adjusted, so that the support plate 208 can be in contact with the hole bottom, and the fixed rod 201 is welded with the main reinforcement at the bottom of the reinforcement cage 102, then the connecting bolt 207 is penetrated through the inner wall of the fixed hole 202 and is screwed with the inner wall of the adjacent adjusting hole 205, so that the adjusted movable rod 204 is stable, and then the casing 101 is inserted into the hole, and then the hanging reinforcement 104 is welded to the top of the reinforcement cage 102, the reinforcement cage 102 is hoisted to the inside of the casing 101 through the lifting ring 105, so that the support plate 208 is in contact with the hole bottom, then during the pouring process, the casing 101 is pulled out upward while pouring, and when the concrete covers the support plate 208, it is fixed at the hole bottom, and then the reinforcement cage 102 is supported and limited by the fixed rod 201 and the movable rod 204, so that the reinforcement cage 102 remains stable during the subsequent pouring process, and the problems of the reinforcement cage 102 floating or sinking during the pouring process in the prior art, which affects the construction efficiency, can be avoided.
[0032] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present application.
Claims
1. A sinking prevention device for reinforcement cage, comprising a pouring mechanism (1) arranged inside a ground hole, characterized in that, Also include: The limiting mechanism (2) is arranged at the bottom of the perfusion mechanism (1), which is used for supporting and limiting the perfusion mechanism (1); The limiting mechanism (2) includes two fixed rods (201) arranged at both ends of the bottom of the perfusion mechanism (1), the outer wall of one side of the fixed rod (201) is provided with a fixed hole (202) at the bottom, the inner wall of the fixed rod (201) is movably connected with a movable rod (204), the outer wall of one side of the movable rod (204) is provided with a plurality of adjusting holes (205) at equal intervals, one of the adjusting holes (205) is provided with a connecting bolt (207) between the fixed hole (202), and the bottom of the two movable rods (204) is fixedly connected with a support plate (208).
2. A de¬ silt device according to claim 1, c h a r a c t e r i s e d in that: The perfusion mechanism (1) includes a sleeve (101) arranged inside the ground hole, the sleeve (101) is movably connected with a reinforcement cage (102) inside, and the outer wall of the reinforcement cage (102) is annularly welded with four positioning steels (103) at equal intervals at the top.
3. A de¬ silt device according to claim 2, c h a r a c t e r i s e d in that: The top of the reinforcement cage (102) is welded with a lifting bar (104) at both ends, the top of the two lifting bars (104) is fixedly connected with a lifting ring (105), the bottom of the reinforcement cage (102) is welded with two fixed rods (201) respectively, and the inner wall of the fixed rod (201) is provided with a limiting groove (203) away from the fixed hole (202).
4. A de¬ silt device according to claim 3, c h a r a c t e r i s e d in that: The outer wall of one side of the movable rod (204) is fixedly connected with a sliding block (206) away from the adjusting hole (205), and the outer wall of the sliding block (206) is movably connected with the inner wall of the adjacent limiting groove (203).
5. The reinforcement cage anti-sag device of claim 2, wherein: The diameter of the support plate (208) is smaller than the outer diameter of the reinforcement cage (102), the diameter of the fixed rod (201) is smaller than the diameter of a single steel bar of the reinforcement cage (102), and the inner diameter of the fixed rod (201) is the same as the outer diameter of the movable rod (204).
6. The reinforcement cage anti-sag device of claim 1, wherein: The inner wall of the fixed hole (202) is threadedly connected with the outer wall of the adjacent connecting bolt (207), and the side of the connecting bolt (207) away from the fixed hole (202) is threadedly connected with the inner wall of the adjacent adjusting hole (205).
Citation Information
Patent Citations
Anti-sinking and anti-floating device for reinforcement cage
CN213390096U