Bridge cast-in-place pile drilling positioning device

Abstract

The utility model relates to the technical field of cast-in-place pile construction, and discloses a bridge cast-in-place pile drilling positioning device which comprises a circular plate, a guide rail, a sliding block, a moving plate, a positioning piece, a cylinder, a rotating cylinder, a connecting rod, a rotating arm and a hydraulic cylinder. During use, the hydraulic cylinder is controlled to work, and the rotating arm can drive the rotating drum to rotate back and forth. And then, under the pulling and pushing of a plurality of connecting rods and the guiding and supporting effects of a plurality of guide rails and a plurality of sliding blocks, the plurality of moving plates can be mutually closed up or dispersed. And the distance between the positioning pieces is adjusted, so that the positioning device can be suitable for drill rods with different diameters, and can also be suitable for pile holes with different diameters.

Description

Technical Field

[0001] This application relates to the field of cast-in-place pile construction technology, and in particular to a drilling positioning device for bridge cast-in-place piles. Background Technology

[0002] A related technology (publication number: CN222376422U) discloses a positioning device for drilling bridge cast-in-place piles, including a positioning sleeve and an inner cylinder elastically disposed within the positioning sleeve. An annular elastic pleated airbag is fixedly fitted onto the outer wall of the inner cylinder, and the outer wall of the annular elastic pleated airbag is fixedly fitted into an annular cavity opened in the inner wall of the positioning sleeve. Interconnected elastic pleated telescopic airbag columns are installed on the annular elastic pleated airbag. A prompting component is also installed on the positioning sleeve, including a mounting bracket fixedly installed on the outer wall of the positioning sleeve, and a pressure sensor and a voice alarm mounted on the mounting bracket.

[0003] In the process of implementing the technical solution disclosed herein, it was found that the above technical solution has at least the following problems:

[0004] This bridge pile drilling positioning device, during use, compresses the annular elastic pleated airbag when the drill rod tilts, causing gas to enter the corresponding elastic pleated telescopic airbag column. This column then extends, and the extension is detected by a pressure sensor, thus determining the direction of the drill rod's tilt. However, because the positioning sleeve, inner cylinder, and inner diameter of the annular elastic pleated airbag are fixed, it cannot be used for detecting drill rods and pile holes of different diameters.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0007] This disclosure provides a positioning device for drilling bridge piles, which is applicable to the inspection of rotating rods and pile holes of different diameters.

[0008] In some technical solutions, the bridge cast-in-place pile drilling positioning device includes: a circular plate; guide rails, installed on the top surface of the circular plate along the radial direction of the circular plate and evenly distributed around the center of the circular plate; sliders, slidably installed on multiple guide rails; moving plates, respectively installed on multiple sliders; positioning elements, respectively installed on multiple moving plates; a cylinder, fitted onto the circular plate and coaxially distributed with the circular plate, the cylinder including a notch at its bottom end; a rotating cylinder, rotatably fitted onto the cylinder and coaxially distributed with the circular plate; a connecting rod, rotatably installed between the top end of the rotating cylinder and multiple moving plates; a rotating arm, installed on the inner side of the rotating cylinder and passing through the notch; and a hydraulic cylinder, rotatably installed between the bottom surface of the circular plate and the rotating arm.

[0009] Optionally, the positioning element includes: a guide shaft, slidably passing through a plurality of movable plates along the radial direction of the circular plate; a limiting plate, respectively installed on one end of the plurality of guide shafts facing the axis of the circular plate; a spring, respectively fitted on the plurality of guide shafts and located between the plurality of limiting plates and the plurality of movable plates; an annular pressure sensor, respectively fitted on the plurality of guide shafts and located between the plurality of springs and the plurality of movable plates; a limiting block, respectively installed on one end of the plurality of guide shafts away from the axis of the circular plate; and a cam bearing, respectively installed on the plurality of limiting blocks and abutting against the plurality of movable plates.

[0010] Optionally, the positioning element further includes: a universal ball bearing, which is respectively installed on the side of the plurality of limiting plates facing the axis of the circular plate.

[0011] Optionally, the positioning element further includes: linear bearings, which are respectively fitted onto the plurality of guide shafts and respectively mounted on the plurality of movable plates.

[0012] Optionally, the positioning element further includes: metal gaskets, which are respectively fitted onto the plurality of guide shafts and located at the contact points of the plurality of springs, the plurality of limiting plates, and the plurality of annular pressure sensors.

[0013] Optionally, it further includes: a deep groove ball bearing, installed between the cylinder and the rotating cylinder, wherein the inner ring of the deep groove ball bearing abuts against the cylinder and the outer ring of the deep groove ball bearing abuts against the rotating cylinder.

[0014] Optionally, it further includes: a first elastic retaining ring, which is fitted onto the outer side of the cylinder, the cylinder including a first annular protrusion on its outer side, and the inner ring of the deep groove ball bearing being held between the first elastic retaining ring and the first annular protrusion.

[0015] Optionally, it further includes: a second elastic retaining ring, which is fitted onto the inner side of the rotating cylinder, the rotating cylinder including a second annular protrusion located on its inner side, and the outer ring of the deep groove ball bearing being clamped between the second elastic retaining ring and the second annular protrusion.

[0016] Optionally, it further includes: a base plate, which is uniformly installed at the bottom end of the cylinder, and the plurality of base plates are distributed in a circular pattern.

[0017] Optionally, it further includes: a support column, rotatably inserted through the tail end of the hydraulic cylinder and mounted on the bottom surface of the circular plate.

[0018] The bridge cast-in-place pile drilling positioning device provided in this disclosure can achieve the following technical effects:

[0019] This disclosure provides a positioning device for drilling bridge cast-in-place piles, comprising a circular plate, guide rails, sliders, movable plates, positioning components, a cylinder, a rotating cylinder, connecting rods, a rotating arm, and a hydraulic cylinder. The guide rails are installed on the top surface of the circular plate along its radial direction and are evenly distributed around the center of the plate, supporting the slidable sliders. The sliders are slidably mounted on multiple guide rails, which together provide guidance and support. Movable plates are mounted on multiple sliders and move radially along the circular plate under the guidance and support of the guide rails and sliders. Positioning components are mounted on multiple movable plates and are used to detect the inclination of the drill rod. A cylinder is fitted onto the circular plate and is coaxially distributed with it. The cylinder includes a notch at its bottom for the rotating arm to pass through. A rotating cylinder is rotatably fitted onto the cylinder and coaxially distributed with the circular plate, allowing it to rotate relative to the cylinder. Connecting rods are rotatably mounted on the top of the rotating drum and between multiple movable plates, and can rotate relative to the rotating drum and the multiple movable plates to transmit driving force. A rotating arm is mounted on the inner side of the rotating drum and passes through a notch, used to drive the rotating drum to rotate relative to the cylinder. A hydraulic cylinder is rotatably mounted between the bottom surface of the circular plate and the rotating arm, and can rotate relative to the circular plate and the rotating arm to provide driving force.

[0020] In operation, the hydraulic cylinder is controlled, causing the rotating arm to drive the drum to rotate reciprocally. Then, under the pulling and pushing of multiple connecting rods, and with the guiding and supporting action of multiple guide rails and sliders, multiple moving plates can move closer together or disperse. This, in turn, causes multiple positioning components to move closer together or disperse. By adjusting the distance between the positioning components, it can be used with drill rods of different diameters and with pile holes of different diameters.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a top view schematic diagram of a bridge cast-in-place pile drilling positioning device provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0026] Figure 4 yes Figure 1 Enlarged structural diagram at point C;

[0027] Figure 5 This is a bottom view of a bridge pile drilling positioning device provided in an embodiment of the present disclosure;

[0028] Figure 6 This is a schematic diagram of the main structure of a bridge cast-in-place pile drilling positioning device provided in an embodiment of this disclosure;

[0029] Figure 7 yes Figure 6 A magnified structural diagram at point D.

[0030] Figure label:

[0031] 10. Circular plate; 20. Guide rail; 30. Slider; 40. Moving plate; 50. Positioning component; 51. Guide shaft; 52. Limiting plate; 53. Spring; 54. Annular pressure sensor; 55. Limiting block; 56. Cam bearing; 57. Universal ball bearing; 58. Linear bearing; 59. Metal gasket; 60. Cylinder; 70. Rotary cylinder; 80. Connecting rod; 90. Rotary arm; 100. Hydraulic cylinder; 110. Deep groove ball bearing; 120. First elastic retaining ring; 130. Second elastic retaining ring; 140. Base plate; 150. Support column. Detailed Implementation

[0032] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0033] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0034] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0035] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0036] Unless otherwise stated, the term "multiple" means two or more.

[0037] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0038] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0040] Combination Figures 1 to 7 As shown, this embodiment of the present disclosure provides a positioning device for drilling bridge cast-in-place piles, including a circular plate 10, guide rails 20, sliders 30, moving plates 40, positioning components 50, a cylinder 60, a rotating cylinder 70, a connecting rod 80, a rotating arm 90, and a hydraulic cylinder 100. The guide rails 20 are installed on the top surface of the circular plate 10 along its radial direction and are evenly distributed around the center of the circular plate 10, respectively supporting the slidable sliders 30. The sliders 30 are slidably installed on multiple guide rails 20, and the multiple guide rails 20 and multiple sliders 30 together provide guidance and support. The moving plates 40 are respectively installed on multiple sliders 30 and move radially along the circular plate 10 under the guidance and support of the multiple guide rails 20 and multiple sliders 30. The positioning components 50 are respectively installed on multiple moving plates 40 and are used to detect the inclination of the drill rod. A cylinder 60 is fitted onto a circular plate 10 and is coaxially distributed with the circular plate 10. The cylinder 60 includes a notch at its bottom end for the passage of a rotating arm 90. A rotating cylinder 70 is rotatably fitted onto the cylinder 60 and coaxially distributed with the circular plate 10, and can rotate relative to the cylinder 60. Connecting rods 80 are rotatably mounted between the top end of the rotating cylinder 70 and a plurality of movable plates 40, and can rotate relative to the rotating cylinder 70 and the plurality of movable plates 40 respectively, for transmitting driving force. A rotating arm 90 is mounted on the inner side of the rotating cylinder 70 and passes through the notch, for driving the rotating cylinder 70 to rotate relative to the cylinder 60. A hydraulic cylinder 100 is rotatably mounted between the bottom surface of the circular plate 10 and the rotating arm 90, and can rotate relative to the circular plate 10 and the rotating arm 90 respectively, for providing driving force.

[0041] This embodiment of the invention provides a positioning device for drilling bridge cast-in-place piles. The hydraulic cylinder 100 is controlled to operate, causing the rotating arm 90 to drive the rotating drum 70 to rotate reciprocally. Then, under the pulling and pushing of multiple connecting rods 80, and with the guiding and supporting action of multiple guide rails 20 and multiple sliders 30, multiple moving plates 40 can move closer together or disperse. This, in turn, causes multiple positioning components 50 to move closer together or disperse. Adjusting the distance between the multiple positioning components 50 allows for application to drill rods of different diameters and pile holes of different diameters.

[0042] Optionally, combined Figure 1 and Figure 2As shown, the positioning component 50 includes a guide shaft 51, a limiting plate 52, a spring 53, an annular pressure sensor 54, a limiting block 55, and a cam bearing 56. The guide shafts 51 are slidably inserted through multiple movable plates 40 along the radial direction of the circular plate 10, and can slide relative to each of the movable plates 40. The limiting plates 52 are respectively installed at one end of each guide shaft 51 facing the axis of the circular plate 10, and all serve to limit movement. The springs 53 are respectively fitted onto the multiple guide shafts 51 and located between the multiple limiting plates 52 and the multiple movable plates 40, and all serve to provide elastic force. The annular pressure sensors 54 are respectively fitted onto the multiple guide shafts 51 and located between the multiple springs 53 and the multiple movable plates 40, and all serve to detect pressure. The limiting blocks 55 are respectively installed at the ends of each guide shaft 51 away from the axis of the circular plate 10, and also serve to limit movement. Cam bearings 56 are respectively installed on multiple limit blocks 55 and abut against multiple movable plates 40, all serving as guide supports so that multiple guide shafts 51 can only slide and cannot rotate.

[0043] In this embodiment, the hydraulic cylinder 100 is operated, causing the rotating arm 90 to drive the rotating drum 70 to reciprocate. Then, under the pulling and pushing of multiple connecting rods 80, and with the guiding and supporting action of multiple guide rails 20 and multiple sliders 30, multiple moving plates 40 can move closer together or disperse, ultimately causing multiple limiting plates 52 to abut against the drill rod. When the rotating rod tilts to either side, one or more springs 53 on the corresponding side are compressed. The compressed springs 53 generate elastic force, which is detected by multiple annular pressure sensors 54 on the corresponding side. The tilt direction of the rotating rod can then be mapped based on the detection values ​​of the multiple annular pressure sensors 54 on the corresponding side.

[0044] Optionally, combined Figure 1 and Figure 2 As shown, the positioning component 50 also includes a universal ball bearing 57. The universal ball bearing 57 is respectively mounted on the side of the plurality of limiting plates 52 facing the axis of the circular plate 10.

[0045] In this embodiment, multiple universal ball bearings 57 are used to abut against the drill pipe, converting sliding friction into rolling friction, thereby reducing friction and thus reducing wear and damage.

[0046] Optionally, combined Figure 1 and Figure 2 As shown, the positioning component 50 also includes linear bearings 58. The linear bearings 58 are respectively fitted onto multiple guide shafts 51 and respectively mounted on multiple movable plates 40.

[0047] In this embodiment of the disclosure, a plurality of linear bearings 58 are used to reduce the friction between a plurality of guide shafts 51 and a plurality of movable plates 40, and to improve the accuracy of the plurality of guide shafts 51 sliding relative to the plurality of movable plates 40.

[0048] Optionally, combined Figure 1 and Figure 2 As shown, the positioning element 50 also includes metal gaskets 59. The metal gaskets 59 are respectively fitted onto multiple guide shafts 51 and are located at the contact points between multiple springs 53 and multiple limiting plates 52 and multiple annular pressure sensors 54.

[0049] In this embodiment of the disclosure, multiple metal pads 59 serve a protective function to prevent the surfaces of multiple limiting plates 52 and multiple annular pressure sensors 54 from being worn and damaged by multiple springs 53.

[0050] Optionally, combined Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it also includes a deep groove ball bearing 110. The deep groove ball bearing 110 is installed between the cylinder 60 and the rotating cylinder 70, with the inner ring of the deep groove ball bearing 110 abutting against the cylinder 60 and the outer ring of the deep groove ball bearing 110 abutting against the rotating cylinder 70.

[0051] In this embodiment of the present disclosure, the deep groove ball bearing 110 is used to enable the rotating drum 70 to rotate relative to the cylinder 60, thereby reducing the frictional force on the rotating drum 70 and improving the rotational accuracy of the rotating drum 70.

[0052] Optionally, combined Figure 6 and Figure 7 As shown, it also includes a first elastic retaining ring 120. The first elastic retaining ring 120 is fitted onto the outer side of the cylinder 60, which includes a first annular protrusion located on its outer side. The inner ring of the deep groove ball bearing 110 is held between the first elastic retaining ring 120 and the first annular protrusion.

[0053] In this embodiment of the disclosure, the first elastic retaining ring 120 and the first annular protrusion are used to determine the relative position of the cylinder 60 and the deep groove ball bearing 110 to avoid axial movement.

[0054] Optionally, combined Figure 6 and Figure 7 As shown, it also includes a second elastic retaining ring 130. The second elastic retaining ring 130 is fitted onto the inner side of the rotating cylinder 70, which includes a second annular protrusion located on its inner side. The outer ring of the deep groove ball bearing 110 is clamped between the second elastic retaining ring 130 and the second annular protrusion.

[0055] In this embodiment of the disclosure, the second elastic retaining ring 130 and the second annular protrusion are used to determine the relative position of the rotating cylinder 70 and the deep groove ball bearing 110 to avoid axial movement.

[0056] Optionally, combined Figure 1 , Figure 5 and Figure 6 As shown, it also includes a base plate 140. The base plates 140 are evenly installed at the bottom end of the cylinder 60, and multiple base plates 140 are distributed in a circle.

[0057] In this embodiment of the disclosure, multiple base plates 140 are used to abut against the ground to increase the contact area with the ground.

[0058] Optionally, combined Figure 5 As shown, it also includes a support column 150. The support column 150 is rotatably inserted through the tail end of the hydraulic cylinder 100 and mounted on the bottom surface of the circular plate 10.

[0059] In this embodiment of the disclosure, the support column 150 is used to support the mounting of a rotatable hydraulic cylinder 100, so that the hydraulic cylinder 100 can rotate relative to the circular plate 10.

[0060] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A positioning device for drilling bridge piles, characterized in that, include: Circular plate; The guide rails are installed on the top surface of the circular plate along the radial direction of the circular plate and are evenly distributed around the center of the circular plate. Slider, each slidably mounted on one of the guide rails; Movable plates are respectively mounted on multiple sliders; Positioning components are respectively installed on multiple of the movable plates; A cylinder is fitted onto the circular plate and is coaxially distributed with the circular plate, the cylinder including a notch at its bottom end; A rotating cylinder is rotatably fitted onto the cylindrical body and is coaxially distributed with the circular plate; The connecting rods are rotatably mounted on the top of the rotating drum and between the multiple movable plates; A rotating arm is installed on the inner side of the rotating drum and passes through the notch; A hydraulic cylinder is rotatably mounted between the bottom surface of the circular plate and the rotating arm.

2. The bridge cast-in-place pile drilling positioning device according to claim 1, characterized in that, The positioning element includes: Guide shafts are slidably disposed on a plurality of the movable plates along the radial direction of the circular plate; Limiting plates are respectively installed on one end of the plurality of guide shafts facing the axis of the circular plate; Springs are respectively fitted onto the plurality of guide shafts and are respectively located between the plurality of limiting plates and the plurality of moving plates; An annular pressure sensor is respectively mounted on multiple guide shafts and is located between multiple springs and multiple movable plates; Limiting blocks are respectively installed at one end of the plurality of guide shafts away from the axis of the circular plate; Cam bearings are respectively installed on the plurality of the limiting blocks and respectively abut against the plurality of the movable plates.

3. The bridge cast-in-place pile drilling positioning device according to claim 2, characterized in that, The positioning element also includes: Universal ball bearings are respectively installed on the sides of the multiple limiting plates facing the axis of the circular plate.

4. The bridge cast-in-place pile drilling positioning device according to claim 2, characterized in that, The positioning element also includes: Linear bearings are respectively fitted onto multiple guide shafts and respectively mounted on multiple movable plates.

5. A bridge cast-in-place pile drilling positioning device according to claim 2, characterized in that, The positioning element also includes: Metal gaskets are respectively fitted onto multiple guide shafts and are located at the contact points between multiple springs, multiple limiting plates, and multiple annular pressure sensors.

6. The bridge cast-in-place pile drilling positioning device according to claim 1, characterized in that, Also includes: A deep groove ball bearing is installed between the cylinder and the rotating cylinder, with the inner ring of the deep groove ball bearing abutting against the cylinder and the outer ring of the deep groove ball bearing abutting against the rotating cylinder.

7. A bridge cast-in-place pile drilling positioning device according to claim 6, characterized in that, Also includes: A first elastic retaining ring is fitted onto the outer side of the cylinder, the cylinder including a first annular protrusion on its outer side, and the inner ring of the deep groove ball bearing is held between the first elastic retaining ring and the first annular protrusion.

8. A bridge cast-in-place pile drilling positioning device according to claim 6, characterized in that, Also includes: The second elastic retaining ring is fitted onto the inner side of the rotating cylinder, which includes a second annular protrusion located on its inner side. The outer ring of the deep groove ball bearing is held between the second elastic retaining ring and the second annular protrusion.

9. A bridge cast-in-place pile drilling positioning device according to any one of claims 1 to 8, characterized in that, Also includes: The base plates are evenly installed at the bottom end of the cylinder, and the multiple base plates are distributed in a circle.

10. A bridge cast-in-place pile drilling positioning device according to any one of claims 1 to 8, characterized in that, Also includes: The support column is rotatably inserted through the tail end of the hydraulic cylinder and mounted on the bottom surface of the circular plate.

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