CN218894079U

CN218894079U - Centering positioning device for pile foundation engineering construction

Info

Publication number: CN218894079U
Application number: CN202223524962.6U
Authority: CN
Inventors: 叶博; 张利; 宋耀; 王闵闵
Original assignee: First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-21
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of pile foundation engineering construction, in particular to a centering positioning device for pile foundation engineering construction, which comprises a pile casing, a centering positioning support, a support rod slideway and a reinforcement cage support rod, wherein the centering positioning support is fixedly connected to the top end of the pile casing, the centering positioning support is coaxial with the pile casing, and the positions of the reinforcement cage support rod can be adjusted along the circumferential direction of the pile casing through a plurality of groups of reinforcement cage support rods provided with the support rod slideway on the centering positioning support, so that the positions of the reinforcement cage support rod can be adjusted, when a reinforcement cage reaches the positions of the reinforcement cage support rod in the lowering process, if a situation that transverse reinforcement cannot fall into a groove occurs when a reinforcement in the vertical direction is opposite to the reinforcement cage support rod, the position of rotating the reinforcement cage can be reached without adjusting a lifting reinforcement cage crane, and the reinforcement cage support rod can be moved along the support rod slideway.

Description

Centering positioning device for pile foundation engineering construction

Technical Field

The utility model relates to the technical field of pile foundation engineering construction, in particular to a centering positioning device for pile foundation engineering construction.

Background

In the pile foundation engineering construction process, the installation of the reinforcement cage is an important step. The reinforcement cage needs to be lowered in the construction process of the pile foundation, and the construction influence is larger if the reinforcement cage is deviated in the lowering process. If the reinforcement cage is in an offset state when the reinforcement cage is put in place, pile foundation reworking is needed, so that the construction speed is reduced, manpower and material resources are wasted, and the loss is great. And when the deviation of the installation center point of the reinforcement cage is too large, the pile foundation is eccentrically pressed, so that the capacity of bearing the load of the pile foundation is reduced, and great quality problems and potential safety hazards exist.

Chinese patent CN215441894U discloses a centering positioning tool for pile foundation reinforcement cage, wherein a plurality of centering components are connected along the circumference of a pile casing, the centering components comprise a base plate vertically connected with the pile casing and a screw rod penetrating through the base plate, and the end part of the screw rod, which is close to the center of the pile casing, is connected with a tightening plate; the screw rod is driven to move by rotating the hand wheel, the screw rod drives the abutting plate to move, the abutting plate is adjusted to a required position, the distance between the center lines of each abutting plate and the protective cylinder is equal, and centering and positioning of the reinforcement cage are realized.

However, in the centering positioning tool, the centering component is fixed on the pile casing, the upward position of the centering component around the pile casing cannot be adjusted, and after the centering component is utilized to realize centering of the reinforcement cage, the reinforcement cage is positioned only through the clamping effect of the centering component, and when the reinforcement cage needs to be fixed, the reinforcement cage is easy to slide downwards.

Disclosure of Invention

The utility model aims to provide a centering and positioning device for pile foundation engineering construction, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the centering positioning device for pile foundation engineering construction comprises a pile casing, a centering positioning bracket, support rod slide ways and reinforcement cage support rods, wherein the centering positioning bracket is fixedly connected to the top end of the pile casing, the centering positioning bracket is coaxial with the pile casing, a plurality of groups of support rod slide ways are arranged on the side wall of the centering positioning bracket, the reinforcement cage support rods are slidably connected in each group of support rod slide ways,

the reinforcement cage support rod comprises a limiting piece and a reinforcement picking rod, wherein the limiting piece is clamped in the support rod slideway, the reinforcement picking rod is in sliding connection with the limiting piece through a frame body, and the reinforcement picking rod faces to the axis direction of the protection barrel.

Preferably, the whole of centering locating support is tubular structure, and branch slide has been seted up on its upper portion, and the bottom of centering locating support is provided with three group's engaging lug, and the engaging lug joint is in the top of a casing to on the lateral wall of a casing through the bolt fastening.

Preferably, each group of the strut slide ways are arranged along the circumferential direction of the centering positioning bracket, and at least two sets of reinforcement cage struts are embedded in each group of the strut slide ways.

Preferably, the support rod slideway comprises three arc slideways which are parallel to each other, namely a first slideway, a second slideway and a third slideway; the first slideway is positioned between the second slideway and the third slideway and used for penetrating the reinforcement cage supporting rod.

Preferably, the limiting part comprises a frame body and clamping positions positioned at two ends of the frame body, and the frame body and the clamping positions are integrally formed.

Preferably, the pile casing end of the rib picking rod is provided with a groove with an upward opening, the groove is arc-shaped, and the rib picking rod is provided with a plurality of circular holes which are circumferentially distributed around the central shaft of the pile casing.

Preferably, the rib picking rod is also provided with a slot which is vertically or horizontally penetrated.

Compared with the prior art, the utility model has the beneficial effects that:

the positions of the reinforcement cage struts can be adjusted along the circumferential direction of the protective cylinder through the plurality of groups of reinforcement cage struts provided with the strut slideways on the centering and positioning support, so that the positions of the reinforcement cage struts can be adjusted, and when the reinforcement cage is in the lowering process and reaches the positions of the reinforcement cage struts, if the situation that transverse reinforcement cannot fall into the grooves occurs when the reinforcement in the vertical direction is right opposite to the reinforcement cage struts, the positions of rotating the reinforcement cage can be reached without adjusting a lifting reinforcement cage crane, and only the reinforcement cage struts need to be moved along the strut slideways;

this centering positioner can also select the steel reinforcement cage branch of suitable quantity according to the diameter of steel reinforcement cage or a section of thick bamboo of protecting, distributes in a section of thick bamboo circumference and to realize the erection in circumference to the steel reinforcement cage.

Drawings

FIG. 1 is a schematic view of the construction of a casing and centering and locating bracket of the present utility model;

FIG. 2 is a top view of the centering bracket of the present utility model;

fig. 3 is a schematic view of a reinforcement cage strut of the present utility model.

In the figure: 1. a protective barrel; 2. centering and positioning the bracket; 201. a connecting lug; 3. a strut slideway; 301. a first slideway; 302. a second slideway; 303. a third slideway 303; 5. a reinforcement cage strut; 501. a limiting piece; 5011. a frame; 5012. clamping; 502. a rib picking lever; 5021. a groove; 5022. and (5) grooving.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the centering positioning device for pile foundation engineering construction comprises a pile casing 1, a centering positioning bracket 2, support rod slide ways 3 and reinforcement cage support rods 5, wherein the pile casing 1 is positioned in a pile foundation hole, the centering positioning bracket 2 is fixedly connected to the top end of the pile casing 1, the centering positioning bracket 2 is coaxial with the pile casing 1, a plurality of groups of support rod slide ways 3 are arranged on the side wall of the centering positioning bracket 2, the reinforcement cage support rods 5 are all connected in a sliding manner in each group of support rod slide ways 3,

the reinforcement cage strut 5 comprises a limiting piece 501 and a rib picking rod 502, wherein the limiting piece 501 is clamped in the strut slideway 3, the rib picking rod 502 is connected with the limiting piece 501 in a sliding manner through a frame 5011, and the rib picking rod 502 faces the axial direction of the casing 1.

The whole centering and positioning bracket 2 is of a cylindrical structure, a supporting rod slideway 3 is arranged at the upper part of the centering and positioning bracket, three groups of connecting lugs 201 are arranged at the bottom of the centering and positioning bracket 2, and the connecting lugs 201 are clamped at the top end of the protective cylinder 1 and are fixed on the protective cylinder 1 through bolts; specifically, each group of connecting lugs 201 is two arc-shaped pieces which are correspondingly arranged, the radian of each group of connecting lugs is matched with that of the protective barrel 1, and bolt holes are formed in the corresponding positions of the connecting lugs 201 and the protective barrel 1, so that the connecting lugs are convenient to pass through the bolts for fixing.

The strut slideways 3 are arranged along the circumferential direction of the centering and positioning bracket 2, and at least two sets of reinforcement cage struts 5 are embedded in each group of strut slideways 3; the number of the reinforcement cage struts 5 arranged in each group of strut slide ways 3 is matched according to the diameter of the pile casing 1 or the reinforcement cage to be placed, the larger the diameter of the pile casing 1 or the reinforcement cage to be placed is, the more the number of the reinforcement cage struts 5 arranged is, so that the reinforcement cage is erected more in the circumferential direction, and the reinforcement cage is centered and positioned. A proper number of reinforcement cage struts 5 are selected according to the diameter of the reinforcement cage or the pile casing 1, distributed in the circumferential direction of the pile casing 1 and erected in the circumferential direction of the reinforcement cage.

The strut slideway 3 comprises three arc slideways which are parallel to each other, namely a first slideway 301, a second slideway 302 and a third slideway 303; the first slideway 301 is located intermediate the second slideway 302 and the third slideway 303, and is arranged to extend through the reinforcement cage strut 5.

The limiting piece 501 is an integrated structure comprising a frame 5011 and clamping positions 5012 positioned at two ends of the frame 5011, wherein the frame 5011 is used for penetrating the rib-picking lever 502, and the inner contour of the frame 5011 is matched with the outer contour of the rib-picking lever 502; the two clamping positions 5012 are respectively clamped in the second slideway 302 and the third slideway 303, and bolt holes are formed in positions corresponding to the second slideway 302 and the third slideway 303, and are fixed through bolts so as to achieve the positioning of the reinforcement cage supporting rod 5.

The end of the protective cylinder 1 of the rib picking lever 502 is provided with a groove 5021 with an upward opening, the groove 5021 is arc-shaped and is used for accommodating the steel bars of the steel bar cage, the rib picking lever 502 is circumferentially arranged around the central shaft of the protective cylinder 1, the groove 5021 forms a circular shape, and the steel bars circumferentially arranged in the steel bar cage are just erected; because scales are arranged along the length direction of the rib picking rods 502, the distances of the rib picking rods 502 extending out of the limiting piece 501 are adjusted to be the same, and the aim of centering the reinforcement cage is fulfilled; the rib picking rod 502 is also provided with a slot 5022 which is vertically or horizontally penetrated, and the position of the reinforcement cage strut 5 is adjusted and then is fixed on the frame 5011 by adopting a bolt to penetrate through the slot 5022; in actual operation, the end of the rib picking lever 502 is lightly hammered to realize that the rib picking lever 502 moves towards the axis of the casing 1, and the pull rope is sleeved in the groove 5022 to be lightly pulled away from the axis of the casing 1, so that the rib picking lever 502 moves towards the direction away from the axis of the casing 1.

When the device works, when a crane lifts the reinforcement cage to be lowered into the pile foundation hole, the reinforcement cage is placed in the grooves 5021 of the reinforcement cage supporting rods 5 arranged along the circumferential direction of the pile foundation hole in the centering process of the reinforcement cage, meanwhile, the reinforcement cage is held by hands, and the reinforcement picking rods 502 on the reinforcement cage supporting rods 5 are adjusted, as the grooves 5021 form a circular shape, scales are arranged along the length direction of the reinforcement picking rods 502, the distances of the reinforcement picking rods 502 extending out of the limiting pieces 501 are adjusted, the distances are the same, bolts penetrate through the grooves 5022 and are fixed in the frame 5011, and the aim of centering the reinforcement cage is achieved; through set up multiunit steel reinforcement cage branch 5 on centering locating support 2, can follow the position of protecting 1 circumference regulation steel reinforcement cage branch 5 to make the position of steel reinforcement cage branch 5 can be adjusted, make the steel reinforcement cage when the in-process of transferring, when reaching steel reinforcement cage branch 5 position, appear can't realize the condition that horizontal reinforcing bar falls into recess 5021 when the reinforcing bar of vertical direction just to steel reinforcement cage branch 5, need not to reach the position of rotating the steel reinforcement cage through adjusting handling steel reinforcement cage crane this moment, only need with steel reinforcement cage branch 5 remove along branch slide 3 can.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pile foundation engineering construction is with centering positioner, includes pile casing (1), centering locating support (2), branch slide (3) and steel reinforcement cage branch (5), centering locating support (2) fixed connection is on pile casing (1) top, and centering locating support (2) are coaxial with pile casing (1), its characterized in that: a plurality of groups of support rod slide ways (3) are arranged on the side wall of the centering and positioning bracket (2), a reinforcement cage support rod (5) is connected in each group of support rod slide ways (3) in a sliding way,

the reinforcement cage support rod (5) comprises a limiting part (501) and a rib picking rod (502), wherein the limiting part (501) is clamped in the support rod slideway (3), the rib picking rod (502) is connected with the limiting part (501) in a sliding mode through a frame body (5011), and the rib picking rod (502) faces to the axis direction of the protection barrel (1).

2. The centering and positioning device for pile foundation engineering construction according to claim 1, wherein: the whole of centering locating support (2) is tubular structure, and branch slide (3) have been seted up on its upper portion, and the bottom of centering locating support (2) is provided with three group's engaging lug (201), and engaging lug (201) joint is in the top of protecting a section of thick bamboo (1) to on the lateral wall of protecting a section of thick bamboo (1) through the bolt fastening.

3. The centering and positioning device for pile foundation engineering construction according to claim 2, wherein: each group of support rod slide ways (3) are arranged along the circumferential direction of the centering and positioning support (2), and at least two sets of reinforcement cage support rods (5) are embedded in each group of support rod slide ways (3).

4. A centering and positioning device for pile foundation engineering construction according to claim 3, wherein: the support rod slideway (3) comprises three arc slideways which are parallel to each other, namely a first slideway (301), a second slideway (302) and a third slideway (303); the first slideway (301) is positioned between the second slideway (302) and the third slideway (303) and is used for penetrating the reinforcement cage support rod (5).

5. The centering and positioning device for pile foundation engineering construction according to claim 4, wherein: the limiting piece (501) comprises a frame body (5011) and clamping positions (5012) positioned at two ends of the frame body (5011), and the frame body (5011) and the clamping positions (5012) are integrally formed.

6. The centering and positioning device for pile foundation engineering construction according to claim 5, wherein: the rib-picking rod (502) is characterized in that a groove (5021) with an upward opening is formed in the end of the protective barrel (1) of the rib-picking rod (502), the groove (5021) is arc-shaped, a plurality of rib-picking rods (502) are arranged and are round and formed by circumferentially arranging the protective barrel (1) around the central shaft.

7. The centering and positioning device for pile foundation engineering construction of claim 6, wherein: the rib picking rod (502) is also provided with a slot (5022) which is vertically or horizontally penetrated.