Auxiliary device for lowering steel reinforcement framework

Abstract

The utility model provides a steel reinforcement framework lowering auxiliary device. The steel reinforcement framework lowering auxiliary device comprises a circular-ring-shaped positioning base plate, a cylindrical-ring-shaped supporting base coaxially fixed to the positioning base plate and a plurality of positioning assemblies arranged in the circumferential direction of the supporting base at equal intervals. The positioning assembly comprises a driving telescopic assembly, a supporting plate and a positioning rotating wheel assembly. The telescopic end of the driving telescopic assembly stretches into the inner side of the supporting base and stretches out and draws back in the radial direction of the supporting base. The supporting plate is fixed to the telescopic end of the driving telescopic assembly. The positioning rotating wheel assembly comprises a shaft seat installed on the supporting plate, a rotating shaft rotationally installed on the shaft seat and a rotating wheel fixed to the rotating shaft, and the axial direction of the rotating wheel is perpendicular to the axial direction of the supporting seat. The drive telescopic assembly drives the positioning rotating wheel assembly to move in the radial direction, so that rotating wheels make contact with the reinforcement cage, and the rotating direction of the rotating wheels adapts to the lowering direction of the reinforcement cage. According to the auxiliary device for lowering the steel reinforcement framework, the hole entering efficiency of the steel reinforcement framework can be improved, the steel reinforcement framework is prevented from deviating and inclining in the lowering process, and the centering precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, in particular to a reinforcement frame lowering auxiliary device. Background Art

[0002] The formation process of cast-in-place piles is as follows: a pile hole is obtained by drilling with a screw machine at the construction site, a steel frame is lowered into the pile hole by a crane, and concrete is poured into the pile hole to form a cast-in-place pile. At present, when the steel frame of the cast-in-place pile is lowered and inserted into the interior of the pile hole, the steel frame is suspended and lifted by a crane, and then the lifting rope is slowly lowered to allow the steel frame to enter the pile hole. The lower part of the steel frame lacks constraints and shakes, which easily makes it difficult for the steel frame to enter the hole, and the hole entry efficiency is low. After the steel frame enters the hole, it is skewed and offset, difficult to center, and has poor centering accuracy. Utility Model Content

[0003] In view of this, in order to solve the above-mentioned technical problems, the utility model proposes a steel bar skeleton lowering auxiliary device which has a simple structure, is easy to operate, can improve the efficiency of the steel bar skeleton entering the hole, prevent the steel bar skeleton from being offset and skewed during the lowering process, and improve the centering accuracy.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A reinforcement frame lowering auxiliary device, comprising:

[0006] A positioning chassis, wherein the positioning chassis is in a circular ring shape;

[0007] A support seat, which is cylindrical and annular and is fixed on the positioning chassis coaxially with the positioning chassis;

[0008] A positioning assembly, wherein there are multiple positioning assemblies, which are arranged on the side wall of the support seat at equal intervals along the circumference of the support seat; the positioning assembly comprises a driving telescopic assembly, a support plate and a positioning wheel assembly; the telescopic end of the driving telescopic assembly extends into the inner side of the support seat and telescopes radially along the support seat; the support plate is located on the inner side of the support seat, and is fixed to the telescopic end of the driving telescopic assembly; the positioning wheel assembly comprises an axle seat installed on the support plate, a rotating shaft rotatably installed on the axle seat, and a rotating wheel fixed on the rotating shaft, and the axial direction of the rotating wheel is perpendicular to the axial direction of the support seat; the driving telescopic assembly drives the positioning wheel assembly to move radially so that the rotating wheel contacts the steel frame, and the rotation direction of the rotating wheel is adapted to the lowering direction of the steel frame.

[0009] The positioning chassis is placed at the pile hole to ensure that the center of the pile hole and the center of the positioning chassis are on the same axis; the crane lifts the steel skeleton, and the bottom of the steel skeleton extends into the inner cavity from the upper end of the support seat; the drive telescopic assembly is started to make the turntable lightly contact the steel skeleton, and the turntables of multiple positioning assemblies limit the steel skeleton to ensure that the steel skeleton will not be skewed or offset during the lowering process and can be smoothly centered in the hole. During the lowering of the steel skeleton, since the turntable is rotatable, it can lightly contact the steel skeleton, which does not affect the lowering of the steel skeleton, but also plays a good role in restraining and limiting, and the centering accuracy is higher.

[0010] Furthermore, the positioning assembly includes two positioning wheel assemblies, which are distributed along the axial direction and symmetrically installed on the support plate.

[0011] Each positioning assembly is provided with two rotating wheel assemblies, which can improve stability, further avoid skewing, and improve lowering accuracy.

[0012] Furthermore, the outer side of the rotating wheel is coated with an anti-wear layer to avoid hard contact with the steel frame and prevent scratches on the steel frame.

[0013] Furthermore, the driving telescopic assembly includes a driving motor installed on the outside of the support seat, a driving gear installed on the output end of the driving motor, and a telescopic rod; a rack adapted to the driving gear is provided on one side of the telescopic rod, and the rack engages with the teeth of the gear, and the other end of the telescopic rod passes through the side wall of the support seat, extends into the inner side of the support seat and is connected to the support plate.

[0014] The driving motor is started, and the driving gear rotates and engages with the rack, so that the telescopic rod can be extended and retracted on the inner side of the support seat, thereby realizing the movement of the support plate and the positioning wheel assembly in the radial direction of the support seat.

[0015] Furthermore, the driving telescopic assembly also includes a guide rod; a radial guide sleeve is provided on the outer side wall of the support seat, one end of the guide rod is inserted into the guide sleeve, and passes through the side wall of the support seat to be connected to the support plate.

[0016] Furthermore, the support plate is rectangular, and the telescopic rod is connected to the center of the support plate; there are four guide rods, which are respectively connected to positions close to the four corners of the support plate.

[0017] Furthermore, there are four positioning components.

[0018] Furthermore, a plurality of positioning holes are circumferentially arranged on the edge of the positioning chassis, positioning rods are detachably arranged at the positioning holes, and universal wheels are arranged at the bottom of the positioning chassis.

[0019] Universal wheels are arranged at the bottom to facilitate the movement of the device; when the device is moved to the desired position, the positioning rod is inserted into the positioning hole and then inserted into the ground to fix the device.

[0020] Furthermore, a lifting ring is provided on the top of the side wall of the support seat, and the device can be lifted by a crane.

[0021] Furthermore, it also includes an import guide plate, which is trumpet-shaped and coaxially installed on the top of the support seat through a support rod. The bottom of the side wall plate of the import guide plate is located above the rotating wheel and on the side close to the axis of the support seat at the highest point of the rotating wheel.

[0022] An import guide plate is provided to facilitate the steel bar skeleton to enter the support seat.

[0023] Compared with the prior art, the reinforcement skeleton lowering auxiliary device described in the utility model has the following advantages:

[0024] (1) The reinforcement skeleton lowering auxiliary device described in the utility model has a simple structure and is easy to operate. The reinforcement skeleton is hoisted into the support seat by a crane, and the rotating wheels of multiple positioning components limit and constrain the reinforcement skeleton to ensure that the reinforcement skeleton will not be skewed or offset during the lowering process, and the insertion and centering of the hole are smooth, thereby improving work efficiency. During the lowering process of the reinforcement skeleton, since the rotating wheel is rotatable, it can slightly contact the reinforcement skeleton, which does not affect the lowering of the reinforcement skeleton and can play a good role in restraining and limiting, thereby preventing deviation and skewness and having a higher centering accuracy;

[0025] (2) The outer side of the rotating wheel of the auxiliary device for lowering the steel frame described in the utility model is covered with an anti-wear layer to prevent scratches on the steel frame; each positioning assembly is provided with two rotating wheel assemblies, which can improve the stability in the axial direction and avoid skewing; the driving telescopic assembly adopts a five-point method to push and pull the support plate and the positioning rotating wheel assembly, which is more stable; a positioning rod fixing device is adopted to avoid accidental movement during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the reinforcement skeleton lowering auxiliary device described in Example 1 of the utility model;

[0028] Figure 2 for Figure 1 A top view of

[0029] Figure 3This is a schematic diagram of the structure of the reinforcement skeleton lowering auxiliary device described in Example 2 of the utility model.

[0030] Description of reference numerals:

[0031] 1-positioning chassis, 2-support seat, 3-positioning assembly, 4-positioning rod, 5-lifting ring, 6-support plate, 7-positioning wheel assembly, 8-drive motor, 9-telescopic rod, 10-guide rod, 11-rack, 12-guide sleeve, 13-axle seat, 14-rotating shaft, 15-rotating wheel, 16-imported guide plate, 17-support rod. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] Example 1

[0037] like Figure 1 and 2 As shown, a reinforcement frame lowering auxiliary device comprises a positioning chassis 1, a support seat 2, and a positioning component 3;

[0038] The positioning chassis 1 is in the shape of a ring, and a plurality of positioning holes are arranged circumferentially on the edge of the positioning chassis 1. A positioning rod 4 is detachably arranged at the positioning hole, and a universal wheel is arranged at the bottom of the positioning chassis 1.

[0039] The support seat 2 is cylindrical and annular, and is fixed on the positioning chassis 1 coaxially with the positioning chassis 1; a lifting ring 5 is provided on the top of the side wall of the support seat 2;

[0040] There are four positioning assemblies 3, which are arranged on the side wall of the support seat 2 at equal intervals along the circumference of the support seat 2; the positioning assembly 3 includes a drive telescopic assembly, a support plate 6 and two positioning wheel assemblies 7; the drive telescopic assembly includes a drive motor 8 installed on the outside of the support seat 2, a drive gear installed on the output end of the drive motor 8, a telescopic rod 9, and a guide rod 10; a rack 11 adapted to the drive gear is provided on one side of the telescopic rod 9, and the rack 11 is engaged with the teeth of the gear. The other end of the telescopic rod 9 passes through the side wall of the support seat 2, extends into the inner side of the support seat 2, and can be retracted and extended in the radial direction of the support seat 2; there are four guide rods 10, and four radial guide sleeves 12 are provided on the outer side wall of the support seat 2, one end of the guide rod 10 is inserted into the guide sleeve 12, and passes through the side wall of the support seat 2, and extends into the support seat 2. The inner side of the support seat 2; the support plate 6 is located on the inner side of the support seat 2, the support plate 6 is rectangular, one end of the telescopic rod 9 extends into the support seat 2 and is connected to the center position of the support plate 6, and one end of the guide rod 10 extends into the support seat 2 and is connected to the positions near the four corners of the support plate 6; two positioning wheel assemblies 7 are distributed along the axial direction and are symmetrically installed on the support plate 6 at intervals; the positioning wheel assembly 7 includes an axle seat 13 installed on the support plate 6, a rotating shaft 14 rotatably installed on the axle seat 13, and a wheel 15 fixed on the rotating shaft 14, the axial direction of the wheel 15 is perpendicular to the axial direction of the support seat 2, and the outer side of the wheel 15 is coated with an anti-wear layer; the telescopic assembly is driven to drive the positioning wheel assembly 7 to move radially, so that the wheel 15 contacts the steel skeleton, and the rotation direction of the wheel 15 is adapted to the lowering direction of the steel skeleton.

[0041] The working process of the reinforcement skeleton lowering auxiliary device described in this embodiment is as follows:

[0042] S1. Take the pile hole as a circle and mark a circle with the same diameter as the positioning chassis around the pile hole;

[0043] S2, move the reinforcement skeleton lowering auxiliary device to the pile hole, adjust the position so that the positioning chassis 1 just coincides with the marked circle, at this time the center of the pile hole and the center of the positioning chassis 1 are on the same axis, insert the positioning rod 4 into the positioning hole, and then insert it into the ground to fix the device;

[0044] S3, the crane lifts the steel skeleton, and the bottom of the steel skeleton extends from the upper end of the support seat 2 into the inner cavity; the drive telescopic assembly is started to make the rotating wheel 15 lightly contact the steel skeleton, and the rotating wheels 15 of the multiple positioning assemblies 3 limit the steel skeleton to ensure that the steel skeleton will not be skewed or offset during the lowering process;

[0045] S4, during the lowering of the steel bar skeleton, the rotating wheel 15 slightly contacts the steel bar skeleton and rotates as the steel bar skeleton moves downward, which does not affect the lowering of the steel bar skeleton and plays a good role in restraining and limiting;

[0046] S5. After lowering is completed, remove the device and proceed to subsequent pouring and other processes.

[0047] Example 2

[0048] like Figure 3 As shown, based on Example 1, the difference from Example 1 is that it also includes an inlet guide plate 16, which is trumpet-shaped and coaxially installed on the top of the support seat 3 through a support rod 17. The bottom of the side wall plate of the inlet guide plate 16 is located above the impeller 15 and on the side of the axis of the support seat 2 at the highest point of the impeller 15.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforcement skeleton lowering auxiliary device, characterized in that: include: A positioning chassis, wherein the positioning chassis is in a circular ring shape; A support seat, which is cylindrical and annular and is fixed on the positioning chassis coaxially with the positioning chassis; A positioning assembly, wherein there are multiple positioning assemblies, which are arranged on the side wall of the support seat at equal intervals along the circumference of the support seat; the positioning assembly comprises a driving telescopic assembly, a support plate and a positioning wheel assembly; the telescopic end of the driving telescopic assembly extends into the inner side of the support seat and telescopes radially along the support seat; the support plate is located on the inner side of the support seat, and is fixed to the telescopic end of the driving telescopic assembly; the positioning wheel assembly comprises an axle seat installed on the support plate, a rotating shaft rotatably installed on the axle seat, and a rotating wheel fixed on the rotating shaft, and the axial direction of the rotating wheel is perpendicular to the axial direction of the support seat; the driving telescopic assembly drives the positioning wheel assembly to move radially so that the rotating wheel contacts the steel frame, and the rotation direction of the rotating wheel is adapted to the lowering direction of the steel frame.

2. The reinforcement skeleton lowering auxiliary device according to claim 1 is characterized in that: The positioning assembly includes two positioning wheel assemblies, which are distributed along the axial direction and symmetrically installed on the support plate.

3. The reinforcement skeleton lowering auxiliary device according to claim 1 is characterized in that: The outer side of the rotating wheel is coated with an anti-wear layer.

4. The reinforcement skeleton lowering auxiliary device according to claim 1 is characterized in that: The driving telescopic assembly includes a driving motor installed on the outside of the support seat, a driving gear installed on the output end of the driving motor, and a telescopic rod; a rack adapted to the driving gear is provided on one side of the telescopic rod, and the rack engages with the teeth of the gear. The other end of the telescopic rod passes through the side wall of the support seat, extends into the inner side of the support seat and is connected to the support plate.

5. The reinforcement skeleton lowering auxiliary device according to claim 4 is characterized in that: The driving telescopic assembly also includes a guide rod; a radial guide sleeve is provided on the outer side wall of the support seat, one end of the guide rod is inserted into the guide sleeve, and passes through the side wall of the support seat to be connected with the support plate.

6. The reinforcement skeleton lowering auxiliary device according to claim 5 is characterized in that: The support plate is rectangular, and the telescopic rod is connected to the center of the support plate; there are four guide rods, which are respectively connected to positions close to the four corners of the support plate.

7. The reinforcement skeleton lowering auxiliary device according to any one of claims 1 to 6, characterized in that: There are four positioning components.

8. The reinforcement skeleton lowering auxiliary device according to claim 1 is characterized in that: A plurality of positioning holes are circumferentially arranged on the edge of the positioning chassis, positioning rods are detachably arranged at the positioning holes, and universal wheels are arranged at the bottom of the positioning chassis.

9. The reinforcement skeleton lowering auxiliary device according to claim 1 is characterized in that: A hanging ring is arranged on the top of the side wall of the supporting seat.

10. The reinforcement skeleton lowering auxiliary device according to claim 1, characterized in that: It also includes an import guide plate, which is trumpet-shaped and coaxially installed on the top of the support seat through a support rod. The bottom of the side wall plate of the import guide plate is located above the rotating wheel and on the side of the highest point of the rotating wheel close to the axis of the support seat.

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