Pile head laitance breaking construction device

Abstract

The utility model discloses a pile head laitance breaking construction device which comprises a pile casing, a bottom plate, a top chamber and broken pieces, the bottom plate is outwards arranged at the bottom of the pile casing, a plurality of steel bar clamping grooves are evenly formed in the outer edge of the bottom plate, the broken pieces are arranged on the inner edge of the bottom plate, the broken pieces are continuously and evenly distributed on the inner edge of the bottom plate, and the steel bar clamping grooves are formed in the top chamber. A top chamber is arranged in the cylinder wall of the lateral lower portion of the protective cylinder, an opening of the top chamber faces the outer side of the protective cylinder, and a blocking rubber sheet is arranged at the bottom of the top chamber and fixed to the inner edge of the bottom plate between the broken sheets. The concrete laitance pile head breaking device is simple in structure and convenient to construct, the concrete laitance pile head is easily removed through the lever force of the top chamber, manpower and material resources are saved, the pile head breaking efficiency is greatly improved, and the construction progress is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pile head construction, especially relates to a pile head floating slurry breaking construction device. BACKGROUND

[0002] Pile head breaking construction is a construction process of chiseling or cutting off the pile head part higher than the design elevation after the pile foundation construction is completed, and in the concrete pouring process, the pile top part may appear floating slurry, mud inclusion or insufficient concrete strength, etc., and the poor quality concrete can be removed by pile head breaking to ensure the overall quality of the pile body concrete.

[0003] At present, the pile head breaking construction is carried out by manual chiseling or some pile head breaking devices, such as a convenient isolation disc for pile head breaking disclosed in CN 211973465 U, which specifically discloses a bottom disc with a central hole for the guide pipe of the pouring concrete to pass through, and a plurality of rubber tubes for sleeving on the main reinforcement, and the plurality of rubber tubes vertically extend upward from the bottom disc, and the size of the rubber bottom disc controls the concrete area of the pile to be cut off, although the device can effectively reduce the actual pile diameter of the breaking surface, but it cannot directly break the pile head with the device, and other devices are also needed for pile head breaking construction, which is complicated and inefficient. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a pile head floating slurry breaking construction device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A pile head floating slurry breaking construction device, which comprises a casing, a bottom plate, a top chamber and a fragment, the bottom of the casing is provided with the bottom plate outward, the outer edge of the bottom plate is uniformly provided with a plurality of steel bar clamping grooves, the inner edge of the bottom plate is provided with the fragment, the fragments are continuously and uniformly distributed on the inner edge of the bottom plate, the side lower wall of the casing is provided with the top chamber, the opening of the top chamber faces the outer side of the casing, the bottom of the top chamber is provided with a blocking rubber sheet, and the blocking rubber sheet is fixed on the inner edge of the bottom plate between the fragments.

[0007] The blocking rubber sheet has the following functions: firstly, it can prevent the concrete poured from the casing from returning from below the top chamber during use; and secondly, the blocking rubber sheet has a certain elasticity when the hydraulic jack in the top chamber is lifted, so that the stress point of the hydraulic jack is below the concrete of the blocking rubber sheet, which better plays the role of a lever.

[0008] The casing is cylindrical, and the bottom plate is annular.

[0009] The reinforcing bar clamping groove is in U shape.

[0010] The fragments are in the form of triangular teeth and are uniformly distributed on the inner edge of the bottom plate;

[0011] The function of the fragments is to bear force more evenly when the pile is broken, and the triangular teeth are designed to enable the concrete float slurry on the lower edge to return to the pile head from between the two triangular teeth through the vibration of the vibrating rod.

[0012] The top chamber is in the form of a semicircular groove.

[0013] In use, the casing is buckled on the steel cage, the outer side of the steel cage is fixed by the uniformly distributed reinforcing bars through the fixing wire, the outer side of the steel cage is provided with a formwork, the reinforcing bar clamping grooves on the bottom plate of the casing are clamped on the reinforcing bars at the upper end of the steel cage, the number of the reinforcing bars corresponds to the number of the reinforcing bar clamping grooves, after installation, the casing is used to pour concrete into the steel cage, after vibration by the vibrating rod, the concrete is allowed to solidify, the top end will generate float slurry, since the float slurry will affect the strength of the concrete pile, it is necessary to break the pile head at the top end; the hydraulic jack is placed in the top chamber to lift up, while lifting up, since the blocking rubber sheet is soft, the stress point is on the solidified concrete surface below the blocking rubber sheet, through the upward lifting force, the casing will be lifted up by the lever force, the solidified concrete will be broken at the position of the fragments, through external force, the casing and the float slurry pile head in the casing are removed, and the pile head breaking construction is completed.

[0014] The casing is buckled on the steel cage, the outer side of the steel cage is fixed by the uniformly distributed reinforcing bars through the fixing wire, the outer side of the steel cage is provided with a formwork, the reinforcing bar clamping grooves on the bottom plate of the casing are clamped on the reinforcing bars at the upper end of the steel cage, the number of the reinforcing bars corresponds to the number of the reinforcing bar clamping grooves, after installation, the casing is used to pour concrete into the steel cage, after vibration by the vibrating rod, the concrete is allowed to solidify, the top end will generate float slurry, since the float slurry will affect the strength of the concrete pile, it is necessary to break the pile head at the top end; the hydraulic jack is placed in the top chamber to lift up, while lifting up, since the blocking rubber sheet is soft, the stress point is on the solidified concrete surface below the blocking rubber sheet, through the upward lifting force, the casing will be lifted up by the lever force, the solidified concrete will be broken at the position of the fragments, through external force, the casing and the float slurry pile head in the casing are removed, and the pile head breaking construction is completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural view of the utility model;

[0016] Figure 2 It is a bottom view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 It is a use state structural view of the utility model;

[0019] In the drawing: 1, casing; 2, bottom plate; 21, reinforcing bar clamping groove; 3, top chamber; 31, blocking rubber sheet; 4, fragment; 5, steel cage; 6, fixing wire. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments, obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0021] Embodiment 1

[0022] As Figures 1-4 shown, the utility model provides a pile head floating mud breaking construction device, its structure is: including the casing 1, the bottom plate 2, the top chamber 3 and the fragment 4, the casing 1 bottom is outwardly provided with the bottom plate 2, the bottom plate 2 outer edge is evenly provided with 8 steel bar clamping slots 21, the bottom plate 2 inner edge is provided with the fragment 4, the fragment 4 is continuously and evenly distributed on the bottom plate 2 inner edge, the casing 1's side lower part cylinder wall is provided with the top chamber 3, the top chamber 3 opening is towards the casing 1 outside, the bottom of top chamber 3 is provided with the blocking rubber sheet 31, the blocking rubber sheet 31 is fixed on the bottom plate 2 inner edge between the fragment 4,

[0023] The casing 1 is cylindrical, and the bottom plate 2 is annular.

[0024] The steel bar clamping slots 21 are U-shaped.

[0025] The fragments 4 are triangular tooth-shaped and continuously and evenly distributed on the inner edge of the bottom plate 2.

[0026] The top chamber 3 is semicircular groove-shaped.

[0027] In use, the casing 1 is buckled on the steel reinforcement cage 5, the steel reinforcement cage 5 outside is fixed by the uniformly distributed steel bars through the fixed binding wire 6, the steel reinforcement cage 5 outside is installed with a formwork, the steel bar clamping slots 21 on the bottom plate 2 at the bottom of the casing 1 are clamped on the steel bars at the upper end of the steel reinforcement cage 5, the number of the steel bars corresponds to the number of the steel bar clamping slots 21, after installation, concrete is poured into the steel reinforcement cage 5 through the casing 1, after vibration by a vibrating rod, the concrete is allowed to solidify, floating mud is generated at the top end, since the floating mud will affect the strength of the concrete pile, it is necessary to break the pile head of the floating mud at the top end; the hydraulic jack is placed in the top chamber 3 to jacking up, while jacking up, since the blocking rubber sheet 31 is soft material, the stress point is on the solidified concrete surface below the blocking rubber sheet 31, by the upward jacking force, the casing 1 is lifted up by the force of a lever, the solidified concrete is fractured at the position of the fragments 4, the casing 1 and the floating mud pile head in the casing 1 are removed by external force, and the pile head breaking construction is completed.

Claims

1. A construction device for breaking up slurry at pile heads, characterized in that: The device includes a casing, a bottom plate, a top chamber, and segments. The bottom of the casing has a bottom plate facing outwards, and multiple steel bar slots are evenly arranged along the outer edge of the bottom plate. Segments are arranged on the inner edge of the bottom plate, and the segments are continuously and evenly distributed along the inner edge of the bottom plate. The top chamber is arranged inside the lower side wall of the casing, and the opening of the top chamber faces outwards from the casing. A sealing rubber sheet is arranged at the bottom of the top chamber, and the sealing rubber sheet is fixed to the inner edge of the bottom plate between the segments.

2. The pile head laitance removal construction device according to claim 1, characterized in that: The protective sleeve is cylindrical, and the bottom plate is annular.

3. The pile head laitance removal construction device according to claim 1, characterized in that: The rebar slot is U-shaped.

4. The pile head laitance removal construction device according to claim 1, characterized in that: The fragments are distributed continuously and evenly in a triangular tooth shape along the inner edge of the base plate.

5. The pile head laitance removal construction device according to claim 1, characterized in that: The top chamber is a semi-circular trough.

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