阅读说明：本技术 一种抗上浮装置及抗上浮旋挖桩钢筋笼、安装方法 (Anti-floating device, anti-floating rotary pile reinforcement cage and installation method ) 是由 曹快 叶胜军 秦玉欢 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种抗上浮装置及抗上浮旋挖桩钢筋笼、安装方法,属于钢筋笼固定浇筑技术领域,通过设计和安装一种抗上浮装置,包括中心盘和限位件,中心盘上安装有连接杆,连接杆设置有多组,多组连接杆沿中心盘轴线等间距分布,连接杆的一端与中心盘转动连接,连接杆的另一端安装有限位件,连接杆与限位件转动连接,中心盘外安装有安装环,安装环与中心盘同轴设置,安装环上开设有固定孔,限位件与固定孔相连接,限位件适于沿固定孔向外延伸；本发明解决了钢筋笼在桩基孔内上浮问题,且抗上浮装置结构简单,便捷实现锁紧,有效解决了混凝土灌注过程中,因为混凝土浇筑速度过快,混凝土上返对钢筋笼产生的冲力,减少钢筋笼上浮带来的问题。(The invention discloses an anti-floating device, an anti-floating rotary pile reinforcement cage and an installation method, belonging to the technical field of reinforcement cage fixing and pouring, wherein the anti-floating device is designed and installed and comprises a central disc and a limiting piece, the central disc is provided with a plurality of groups of connecting rods, the groups of connecting rods are distributed at equal intervals along the axis of the central disc, one end of each connecting rod is rotatably connected with the central disc, the other end of each connecting rod is provided with the limiting piece, the connecting rods are rotatably connected with the limiting pieces, an installation ring is installed outside the central disc, the installation ring and the central disc are coaxially arranged, the installation ring is provided with a fixing hole, the limiting pieces are connected with the fixing holes, and the limiting pieces are suitable for extending outwards along the fixing holes; the anti-floating device solves the problem that the reinforcement cage floats upwards in a pile foundation hole, is simple in structure, can conveniently realize locking, and effectively solves the problem caused by the fact that in the concrete pouring process, due to the fact that the concrete pouring speed is too high, the concrete returns upwards to generate impact force on the reinforcement cage, and the steel reinforcement cage floats upwards.)

1. An anti come-up device, its characterized in that: including central disk (1) and locating part (2), install connecting rod (3) on central disk (1), connecting rod (3) are provided with the multiunit, the multiunit connecting rod (3) are along the equidistant distribution of central disk (1) axis, the one end and central disk (1) of connecting rod (3) rotate and are connected, locating part (2) are installed to the other end of connecting rod (3), connecting rod (3) rotate with locating part (2) and are connected, install collar (4) outward in central disk (1), collar (4) and central disk (1) coaxial setting, fixed orifices (5) have been seted up on collar (4), locating part (2) are connected with fixed orifices (5), locating part (2) are suitable for outwards extending along fixed orifices (5).

2. The anti-floating device according to claim 1, wherein: locating part (2) include catch bar (6) and staple (7), the one end and connecting rod (3) of catch bar (6) rotate to be connected, the other end and staple (7) fixed connection of catch bar (6), locating part (2) still include outer shell (8), staple (7) are installed in outer shell (8).

3. An anti-floating device according to claim 2, wherein: install first mounting in outer cartridge case (8), be provided with the second mounting on the lateral wall of staple (7), first mounting and second mounting are suitable for the position of restriction staple (7) relative center disk (1).

4. An anti-floating device according to claim 3, wherein: first mounting includes restriction piece (9) down, the second mounting is including meshing line (10), install barb board (11) down on restriction piece (9), the pointed end and the meshing line (10) of barb board (11) mesh mutually, install torsional spring (12) between barb board (11) and the line piece down, torsional spring (12) are suitable for restriction staple (7) one-way motion.

5. An anti-floating device according to claim 4, wherein: the push rod (6) is provided with a hole sleeve (13), the size of the outer side of the hole sleeve (13) is matched with the inner diameter of the outer cylinder shell (8), and the hole sleeve (13) is sleeved on the push rod (6).

6. The utility model provides an anti-floating rotary pile reinforcement cage, includes steel reinforcement cage (14), its characterized in that: further comprising an anti-floating-up device mounted on the reinforcement cage (14) and according to any of claims 1 to 5, said anti-floating-up device being located on the top mesh of the reinforcement cage (14), said stop member (2) being adapted to abut down against the reinforcement cage (14).

7. The method for installing the anti-floating rotary pile cage according to claim 6, comprising the following steps:

the method comprises the following steps: presetting and measuring the size of an actual pile foundation hole (15) and marking the size, drilling a hole on the bottom surface of construction by using a drilling machine, and detecting that the inner diameter of the actual pile foundation hole (15) is matched with the outer diameter of a reinforcement cage (14);

step two: a positioning hole (16) is formed in the inner wall of the pile foundation hole (15), and the positioning hole (16) is matched with the fixing nail (7);

step three: placing a reinforcement cage (14) in the pile foundation hole (15), adjusting the reinforcement cage (14) to a construction position, and installing an anti-floating device in meshes of the reinforcement cage (14);

step four: a positioning frame (17) is mounted on a reinforcement cage (14), a center tube (18) is arranged on the positioning frame (17), a center hole (19) is formed in the center plate (1), the top end of the center plate (1) rotates on the positioning frame (17), the bottom end of the center tube (18) penetrates through the center hole (19) and extends to the bottom end of the center plate (1), an upper plate (20) and a lower plate (21) are mounted at the outer end of the center tube (18), the upper plate (20) is mounted at the upper end of the center plate (1), the lower plate (21) is mounted at the lower side of the center plate (1), the upper plate (20) and the lower plate (21) are detachably connected with the center tube (18), the upper plate (20) and the lower plate (21) are suitable for mounting a bolt (22) to be fixed, and the bolt (22) is suitable for penetrating through the center hole (19);

step five: an expansion link (23) is arranged below the positioning frame (17), a lower pressing plate (24) is arranged at the bottom end of the expansion link (23), and the lower pressing plate (24) is abutted to the mounting ring (4);

step six: the central cylinder (18) is rotated anticlockwise, the central disc (1) is rotated and drives the connecting rod (3) to rotate, the fixing nail (7) extends out of the outer shell, is inserted into the positioning hole (16) and is tamped, and concrete is poured into the central cylinder (18);

step seven: after pouring is finished, the central cylinder (18) is rotated clockwise to reset the fixing nail (7);

step eight: the telescopic rod (23) is reset, the anti-floating device is firstly detached, and then the positioning frame (17) is detached to finish the installation.

Technical Field

The invention belongs to the technical field of steel reinforcement cage fixing and pouring, and particularly relates to an anti-floating device, an anti-floating rotary pile steel reinforcement cage and an installation method.

Background

The cast-in-place pile has the advantages of strong adaptability, large bearing capacity, moderate cost, stable later quality, low construction noise, less interference to adjacent parts and the like, and is widely applied to house buildings, hydraulic buildings and bridge engineering. The problem of floating of the reinforcement cage is one of the most common problems in construction and the most troublesome problems for construction units. In the concrete pouring process, the concrete pouring speed is too fast, the impact force generated on the reinforcement cage by the upward return of the concrete is too large, the buried depth of the guide pipe is too large, and the upward floating of the reinforcement cage is easily caused by the acting force generated on the reinforcement cage when the guide pipe is lifted, so that the engineering quality is greatly damaged. The steel reinforcement cage is fixed, the steel reinforcement cage is prevented from floating upwards, and the quality of a pile foundation is guaranteed to be particularly important.

Therefore, the applicant inherits the experience of abundant design development and actual manufacturing of related industries for many years, researches and improves the existing structure and deficiency, and provides an anti-floating device, an anti-floating rotary pile reinforcement cage and an installation method so as to achieve the aim of higher practical value.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the problem of steel reinforcement cage downthehole come-up of pile foundation is solved, and anti come-up device simple structure, convenient realization locking.

In order to solve the technical problems, the inventor obtains the technical scheme of the invention through practice and summary, and the invention discloses an anti-floating device which comprises a central disc and a limiting piece, wherein the central disc is provided with a plurality of groups of connecting rods, the groups of connecting rods are distributed at equal intervals along the axis of the central disc, one end of each connecting rod is rotatably connected with the central disc, the other end of each connecting rod is provided with the limiting piece, the connecting rods are rotatably connected with the limiting piece, the central disc is externally provided with an installation ring, the installation ring and the central disc are coaxially arranged, the installation ring is provided with a fixing hole, the limiting piece is connected with the fixing hole, and the limiting piece is suitable for extending outwards along the fixing hole.

Furthermore, the locating part includes catch bar and staple, the one end and the connecting rod of catch bar rotate to be connected, the other end and the staple fixed connection of catch bar, the locating part still includes outer shell, the staple is installed in outer shell.

Furthermore, install first mounting in the outer cartridge case, be provided with the second mounting on the lateral wall of staple, first mounting and second mounting are suitable for the position of restriction staple relative central disk.

Further, first mounting includes down the gage block, the second mounting includes the meshing line, install the barb board on the gage block down, the pointed end and the meshing line of barb board mesh mutually, install the torsional spring between barb board and the lower line piece, the torsional spring is suitable for restriction staple unidirectional movement.

Furthermore, a hole sleeve is installed on the push rod, the size of the outer side of the hole sleeve is matched with the inner diameter of the outer cylinder shell, and the hole sleeve is sleeved on the push rod.

The utility model provides an anti-floating rotary pile reinforcement cage, includes the reinforcement cage, still including installing on the reinforcement cage anti-floating device, anti-floating device is located the top mesh of reinforcement cage, the locating part is suitable for downward butt reinforcement cage.

The anti-floating device is located on a mesh at the top end of the steel reinforcement cage, and the limiting piece is suitable for being downwards abutted to the steel reinforcement cage.

A method of installing an anti-floating rotary pile cage according to claim 6, comprising the steps of:

the method comprises the following steps: presetting and measuring the size of an actual pile foundation hole and marking the size, drilling a hole on the bottom surface of construction by using a drilling machine, and detecting that the inner diameter of the actual pile foundation hole is matched with the outer diameter of a reinforcement cage;

step two: a positioning hole is formed in the inner wall of the pile foundation hole and matched with the fixing nail;

step three: placing a reinforcement cage in the pile foundation hole, adjusting the reinforcement cage to a construction position, and installing an anti-floating device in meshes of the reinforcement cage;

step four: the steel reinforcement cage is provided with a positioning frame, a central cylinder is arranged on the positioning frame, a central hole is formed in the central disc, the top end of the central disc rotates on the positioning frame, the bottom end of the central cylinder penetrates through the central hole and extends to the bottom end of the central disc, an upper plate and a lower plate are arranged at the outer end of the central cylinder, the upper plate is arranged at the upper end of the central disc, the lower plate is arranged at the lower side of the central disc, the upper plate and the lower plate are detachably connected with the central cylinder, the upper plate and the lower plate are suitable for installing and fixing bolts, and the bolts are suitable for penetrating through the central hole;

step five: a telescopic rod is arranged below the positioning frame, a lower pressing plate is arranged at the bottom end of the telescopic rod, and the lower pressing plate is abutted to the mounting ring;

step six: rotating the central cylinder anticlockwise to enable the central disc to rotate and drive the connecting rod to rotate, enabling the fixing nails to extend out of the outer shell and to be inserted into the positioning holes to be tamped, and pouring concrete into the central cylinder;

step seven: after pouring is finished, the central cylinder is rotated clockwise to reset the fixing nail;

step eight: the telescopic rod resets, removes the anti-floating device earlier, and the locating rack is removed to the back, accomplishes the installation.

Compared with the prior art, the invention can obtain the following technical effects:

1. according to the anti-floating device, the anti-floating rotary pile reinforcement cage and the installation method, the reinforcement cage is fixed in the pile foundation hole in a manner of presetting a turntable connecting rod on the reinforcement cage and matching with the barb plate and the meshing lines, and the problems caused by floating of the reinforcement cage due to the fact that concrete returns upwards to the reinforcement cage because of high pouring speed of the concrete in the concrete pouring process are effectively solved.

2. The anti-floating device adopts simple connection modes such as a crank-slider mechanism and the like, can drive the fixing nail into the positioning hole after extending out when the central disc rotates, can pull the push rod out of the hole sleeve only by rotating the central disc forward and backward, has simple structure, can be used for multiple times, and has strong practicability.

3. According to the invention, the positioning frame is arranged on the anti-floating device, and the central cylinder is arranged on the positioning frame, so that concrete can be poured at a higher position, and can be clamped and fixed through the mounting bolts of the upper plate and the lower plate, so that the higher position is rotated, the central disc is driven to rotate, and the anti-floating device is simple and convenient.

4. According to the invention, the telescopic rod is pressed downwards on the mounting ring, so that the floating of the reinforcement cage is less influenced.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a top view of the anti-float device of the present invention;

FIG. 2 is a cross-sectional view of the anti-float device of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a cross-sectional view of the anti-floating device of the present invention installed in a reinforcement cage;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

fig. 6 is an enlarged view of a portion C of fig. 4.

In the figure: 1. a central disk; 2. a limiting member; 3. a connecting rod; 4. a mounting ring; 5. a fixing hole; 6. a push rod; 7. fixing nails; 8. an outer cylindrical shell; 9. a lower limiting block; 10. meshing lines; 11. a barb plate; 12. a torsion spring; 13. sleeving a hole; 14. a reinforcement cage; 15. pile foundation holes; 16. positioning holes; 17. a positioning frame; 18. a central barrel; 19. a central bore; 20. an upper plate; 21. a lower plate; 22. a bolt; 23. a telescopic rod; 24. and (5) pressing the plate downwards.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 to 5, which is an embodiment of the present invention, as shown in fig. 1 to 3, an anti-floating device includes a central plate 1 and a limiting member 2, a connecting rod 3 is installed on the central plate 1, the connecting rod 3 is provided with a plurality of groups, the plurality of groups of connecting rods 3 are distributed at equal intervals along an axis of the central plate 1, one end of the connecting rod 3 is rotatably connected with the central plate 1, the other end of the connecting rod 3 is installed with the limiting member 2, the connecting rod 3 is rotatably connected with the limiting member 2, an installation ring 4 is installed outside the central plate 1, the installation ring 4 is coaxially arranged with the central plate 1, a fixing hole 5 is formed in the installation ring 4, the limiting member 2 is connected with the fixing hole 5, and the limiting member 2 is adapted to extend outward along the fixing hole 5.

Locating part 2 includes catch bar 6 and staple 7, and the one end of catch bar 6 rotates with connecting rod 3 to be connected, the other end and the staple 7 fixed connection of catch bar 6, and locating part 2 still includes outer shell 8, and staple 7 is installed in outer shell 8.

A first fixing piece is installed in the outer cylinder shell 8, a second fixing piece is arranged on the side wall of the fixing nail 7, and the first fixing piece and the second fixing piece are suitable for limiting the position of the fixing nail 7 relative to the central disc 1.

Further, first mounting includes restriction piece 9 down, and the second mounting includes meshing line 10, installs barb board 11 on the restriction piece 9, and the pointed end of barb board 11 meshes with meshing line 10 mutually, installs torsional spring 12 between barb board 11 and the lower line piece, and torsional spring 12 is suitable for restriction staple 7 unidirectional movement.

Specifically, as shown in fig. 3, in the first installation part of the outer cylinder shell 8, the lower limit plate 9 is welded in the outer cylinder shell 8, the lower limit plate 9 is provided with a torsion spring 12 and a barb plate 11, the torsion spring 12 is suitable for limiting the movement of the phase center plate 1 of the fixing nail 7, and when the fixing nail 7 is used, the barb plate 11 is forced to move outwards by inserting a tool, so that the limitation of the torsion spring 12 can be opened, and the resetting of the fixing nail 7 is completed.

Further, in order to ensure that concrete is poured into the outer cylinder shell 8, a hole sleeve 13 is installed on the push rod 6, the size of the outer side of the hole sleeve 13 is matched with the inner diameter of the outer cylinder shell 8, and the hole sleeve 13 is sleeved on the push rod 6.

As shown in fig. 4, the anti-floating rotary pile reinforcement cage comprises a reinforcement cage 14 and an anti-floating device, wherein the anti-floating device is located on a mesh at the top end of the reinforcement cage 14, and the limiting member 2 extends into the side wall of the pile foundation hole 15, and is suitable for being abutted against the reinforcement cage 14 downwards.

A method of installing an anti-floating rotary pile cage according to claim 6, comprising the steps of:

the method comprises the following steps: presetting and measuring the size of an actual pile foundation hole 15 and marking the size, drilling a hole on the bottom surface of construction by using a drilling machine, and detecting that the inner diameter of the actual pile foundation hole 15 is matched with the outer diameter of the reinforcement cage 14;

step two: a positioning hole 16 is formed in the inner wall of the pile foundation hole 15, and the positioning hole 16 is matched with the fixing nail 7;

step three: placing a reinforcement cage 14 in the pile foundation hole 15, adjusting the reinforcement cage 14 to a construction position, and installing an anti-floating device in a mesh hole of the reinforcement cage 14;

step four: a positioning frame 17 is mounted on the reinforcement cage 14, a center barrel 18 is arranged on the positioning frame 17, a center hole 19 is formed in the center plate 1, the top end of the center plate 1 rotates on the positioning frame 17, the bottom end of the center barrel 18 penetrates through the center hole 19 and extends to the bottom end of the center plate 1, an upper plate 20 and a lower plate 21 are mounted at the outer end of the center barrel 18, the upper plate 20 is mounted at the upper end of the center plate 1, the lower plate 21 is mounted at the lower side of the center plate 1, the upper plate 20 and the lower plate 21 are both detachably connected with the center barrel 18, the upper plate 20 and the lower plate 21 are suitable for fixing a mounting bolt 22, and the bolt 22 is suitable for penetrating through the center hole 19;

step five: an expansion rod 23 is arranged below the positioning frame 17, a lower pressing plate 24 is arranged at the bottom end of the expansion rod 23, and the lower pressing plate 24 is abutted with the mounting ring 4;

step six: rotating the central cylinder 18 anticlockwise to enable the central disc 1 to rotate and drive the connecting rod 3 to rotate, enabling the fixing nails 7 to extend out of the outer shell, inserting the fixing nails into the positioning holes 16 to tamp, and pouring concrete into the central cylinder 18;

step seven: after the pouring is finished, the central cylinder 18 is rotated clockwise to reset the fixing nail 7;

step eight: the telescopic rod 23 is reset, the anti-floating device is firstly detached, and then the positioning frame 17 is detached to complete the installation.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.