A pier hole reinforcement cage lowering device used in bridge engineering

Abstract

The utility model proposes a pier hole steel cage lowering device applied to bridge engineering, which belongs to the technical field of pier construction. The pier hole steel cage lowering device applied to bridge engineering includes a base, a support beam and a guide member. The base is annular in structure and is used to be placed outside the pier hole. A plurality of support beams are installed on the base, and the plurality of support beams are arranged in a circular row. The guide member is installed on the inner side of the support beam, and the bottom end of the guide member extends downward into the pier hole. The utility model has the advantages of facilitating the lowering of the pier hole steel cage, improving the lowering accuracy of the pier hole steel cage, and facilitating the lowering operation of the pier hole steel cage.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pier construction, in particular to a pier hole reinforcement cage lowering device applied to bridge engineering. Background Art

[0002] In the pile-casting construction of bridge pier foundations, after the pier hole is formed, the lowering of the steel cage needs to be completed by a crane. After the crane lifts one end of the steel cage, it lifts the steel cage to the vicinity of the pier hole, and then slowly aligns the steel cage with the pier hole and lowers it. During this process, two to three ground workers are usually required to observe the position and status of the steel cage in real time and remind the crane operator. Due to the large size of the steel cage, the lifted steel cage is affected by the hoist and the previous lifting operation, and it is inevitable that there is a slight tilt, resulting in the steel cage being lowered from the pier hole. The bottom of the cage is very easy to pile to the side wall of the pier hole, causing the pier hole to be damaged or the steel cage to deform. In view of this, in order to facilitate the lifting and lowering of the steel cage and improve the accuracy and stability of the lowering of the steel cage, the present application provides a pier hole steel cage lowering device for bridge engineering. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a pier hole steel cage lowering device for use in bridge engineering, which is convenient for lowering the pier hole steel cage, improves the lowering accuracy of the pier hole steel cage and facilitates the lowering operation of the pier hole steel cage.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A pier hole reinforcement cage lowering device used in bridge engineering comprises a base, a support beam and a guide member, wherein the base is annular in structure and is used to be placed outside the pier hole, a plurality of support beams are installed on the base, and the plurality of support beams are arranged in a circular row, the guide member is installed on the inner side surface of the support beam, and the bottom end of the guide member extends downward into the pier hole.

[0006] Furthermore, an annular slide groove is arranged on the top of the base, a slide seat is fixedly installed on the bottom of the support beam, and the slide seat is slidably arranged in the annular slide groove.

[0007] Furthermore, a lifting groove is provided on the inner side surface of the support beam, an adjusting screw rod is rotatably installed on the support beam and extends into the lifting groove, a lifting plate is provided on the external thread sleeve of the adjusting screw rod, and the guide member is installed on the inner end of the lifting plate.

[0008] Furthermore, the guide member is in a rod-shaped structure, and a top end of the guide member is provided with an inclined section inclined to one side.

[0009] Furthermore, a hook-shaped section is bent at the bottom end of the guide member toward one side of the inclined section.

[0010] Furthermore, an annular groove is formed on the guide member, the inner end of the lifting plate is sleeved in the annular groove, and a positioning structure for fixing the orientation of the guide member is provided between the lifting plate and the guide member.

[0011] Furthermore, the positioning structure includes a latch and a pin hole, the pin hole is provided on the guide member, and the pin hole and the inclined section are located on the same vertical plane, and the latch is installed on the lifting plate in a horizontal state.

[0012] Furthermore, the latch has an "L"-shaped structure, one side of the latch faces the center of the base, and a limiting groove for inserting the other side of the latch is provided on the lifting plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. By placing the base outside the pier hole and measuring the base and the pier hole so that the base and the pier hole are in a state of centering, in the process of lowering the steel cage, the guide piece is used to contact the side wall of the steel cage, which has a guiding and limiting effect on the steel cage, so that the lowered steel cage can be continuously lowered into the pier hole in a state of centering with the pier hole, which can not only correct the state of the steel cage, but also prevent the steel cage from hitting the side wall of the pier hole of the pile foundation, and can improve the accuracy and stability of the lowering of the steel cage.

[0015] 2. By setting a hook section at the bottom end of the guide, after the steel cage is lowered, the hook section is used to support the steel cage. At the same time, by adjusting the height of the hook section, the height of the supported part of the steel cage can be adjusted to further correct the state of the steel cage. At the same time, the support beam is displaced in the circumferential direction of the base, and the different positions of the steel cage lifted by the hook section can be adjusted to further improve the lifting accuracy of the steel cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 4 It is a schematic diagram of the guide member of the utility model.

[0020] In the figure: 1. base; 2. support beam; 3. guide member; 4. annular slide groove; 5. slide seat; 6. lifting groove; 7. adjusting screw rod; 8. lifting plate; 9. tilting section; 10. hook section; 11. annular groove; 12. latch pin; 13. pin hole; 14. limit groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 4 As shown, a pier hole reinforcement cage lowering device used in bridge engineering includes a base 1, a support beam 2 and a guide member 3. The base 1 is annular in structure and is used to be placed outside the pier hole. When the base 1 is placed, the base 1 and the pier hole are aligned. A plurality of support beams 2 are installed on the base 1. Specifically, in this embodiment, the number of support beams 2 is set to four, and the plurality of support beams 2 are distributed in a circular array. The guide member 3 is installed on the inner side of the support wheel, and the bottom end of the guide member 3 extends downward into the pier hole.

[0023] When applying the pier hole reinforcement cage lowering device provided in this embodiment for bridge engineering, the base 1 is first placed outside the pier hole, and the base 1 is aligned with the pier hole. When lowering the reinforcement cage, the reinforcement cage slides downward on the inner surface of the guide member 3, so that the guide member 3 has a guiding effect on the reinforcement cage, so that the reinforcement cage can be aligned with the pier hole after being lowered, so as to improve the lowering accuracy of the reinforcement cage, reduce the difficulty of subsequent adjustment operations, and improve the construction efficiency of lowering the reinforcement cage.

[0024] An annular chute 4 is provided on the top of the base 1, and a slide 5 is fixedly installed on the bottom of the support beam 2, and the slide 5 is slidably arranged in the annular chute 4. Such an arrangement enables the support beam 2 to adjust its position along the circumferential direction on the base 1, thereby enabling the guide member 3 to effectively avoid the longitudinal steel bars outside the steel cage, making it easier to lower the steel cage.

[0025] The inner side of the support beam 2 is provided with a lifting groove 6, and an adjusting screw 7 is rotatably installed on the support beam 2 and extends into the lifting groove 6. The outer thread of the adjusting screw 7 is provided with a lifting plate 8, and the guide member 3 is installed on the inner side end of the lifting plate 8. Specifically, the outer side end of the lifting plate 8 extends into the lifting groove 6, and the height of the lifting plate 8 can be controlled by rotating the adjusting screw 7, thereby fixing the height of the guide member 3. In the initial state, the guide member 3 is adjusted to the highest position so that the bottom end of the guide member 3 is located above the pier hole. After the base 1 is placed on the pier hole, the bottom end of the guide member 3 is extended into the pier hole by rotating the adjusting screw 7. Specifically, in this embodiment, the distance between the guide member 3 and the inner side wall of the pier hole should be set to match the preset distance between the steel cage and the inner side wall of the pier hole, so that the steel cage can be directly fixed in a precise position after being lowered.

[0026] The guide member 3 is a rod-shaped structure, and the top of the guide member 3 is provided with an inclined section 9 inclined to one side. Specifically, before the steel cage is lowered, the inclined section 9 is made to face outward. At this time, the inclined section 9 guides the lowered steel cage by contacting the bottom end of the steel cage, so that the steel cage can accurately enter the base 1.

[0027] The bottom end of the guide member 3 is bent with a hook section 10 toward one side of the inclined section 9. Specifically, in the process of lowering the steel cage, the hook section 10 and the inclined section 9 are both inclined outwards, and will not interfere with the lowering operation of the steel cage. After the steel cage is lowered to a preset height, the guide member 3 is rotated so that the hook section 10 faces one side of the steel cage. At this time, the hook section 10 will enter the grid between the stirrups of the steel cage, and then the screw rod 7 is rotated to make the hook section 10 hook the stirrups from bottom to top, and the cooperation of multiple guide members 3 is used to achieve effective support for the steel cage.

[0028] After supporting the steel cage, by adjusting the height of the guide rod, different parts of the steel cage can be lifted and lowered to achieve correction of the steel cage. At the same time, by coordinating the displacement of the guide member 3 in the circumferential direction of the base 1, different positions of the steel cage can be corrected more flexibly. It is easy to use and can improve the lowering accuracy of the steel cage.

[0029] An annular groove 11 is provided on the guide member 3, and the inner side end of the lifting plate 8 is sleeved in the annular groove 11, and a positioning structure for fixing the orientation of the guide member 3 is provided between the lifting plate 8 and the guide member 3. Specifically, the guide member 3 is fixed by the positioning structure before the steel cage is lowered, and the inclined section 9 and the hook section 10 are in an outward state. After the steel cage is lowered, before the steel cage is hung by the hook section 10, the guide member 3 is rotated so that the hook section 10 is in an inward state, and then the guide member 3 is fixed by the positioning mechanism.

[0030] The positioning structure includes a latch 12 and a pin hole 13. The pin hole 13 is provided on the guide member 3, and the pin hole 13 and the inclined section 9 are located on the same vertical plane. The latch 12 is installed in a horizontal state on the lifting plate 8. The guide member 3 is fixed by inserting the latch 12 into the pin hole 13 and utilizing the cooperation between the latch 12 and the pin hole 13.

[0031] Furthermore, the latch 12 is in an "L" shape, with one side of the latch 12 facing the center of the base 1, and a limiting groove 14 is provided on the lifting plate 8 for inserting the other side of the latch 12. With such a configuration, after the latch 12 is inserted into the pin hole 13, the limiting groove 14 can prevent the latch 12 from disengaging from the pin hole 13 backwards, thereby ensuring that the positioning structure has a stable positioning effect on the guide member 3.

[0032] 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 pier hole reinforcement cage lowering device used in bridge engineering, characterized in that: The invention comprises a base (1), a support beam (2) and a guide member (3); the base (1) is annular in structure and is used to be placed outside a pier hole; a plurality of support beams (2) are installed on the base (1), and the plurality of support beams (2) are arranged in a circular row; the guide member (3) is installed on the inner side surface of the support beam (2), and the bottom end of the guide member (3) extends downward into the pier hole.

2. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 1, characterized in that: An annular slide groove (4) is arranged on the top of the base (1), a slide seat (5) is fixedly installed on the bottom of the support beam (2), and the slide seat (5) is slidably arranged in the annular slide groove (4).

3. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 1, characterized in that: The inner side surface of the support beam (2) is provided with a lifting groove (6), and an adjusting screw rod (7) extending into the lifting groove (6) is rotatably mounted on the support beam (2), and a lifting plate (8) is sleeved on the outer thread of the adjusting screw rod (7), and the guide member (3) is mounted on the inner side end of the lifting plate (8).

4. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 3, characterized in that: The guide member (3) is in the form of a rod-shaped structure, and the top end of the guide member (3) is provided with an inclined section (9) inclined to one side.

5. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 4, characterized in that: The bottom end of the guide member (3) is bent toward one side of the inclined section (9) to form a hook-shaped section (10).

6. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 5, characterized in that: The guide member (3) is provided with an annular groove (11), the inner end of the lifting plate (8) is sleeved in the annular groove (11), and a positioning structure for fixing the orientation of the guide member (3) is provided between the lifting plate (8) and the guide member (3).

7. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 6, characterized in that: The positioning structure comprises a latch (12) and a pin hole (13); the pin hole (13) is provided on the guide member (3), and the pin hole (13) and the inclined section (9) are located on the same vertical plane; the latch (12) is installed on the lifting plate (8) in a horizontal state.

8. A pier hole reinforcement cage lowering device for bridge engineering as claimed in claim 7, characterized in that: The latch (12) is in an "L"-shaped structure, with one side of the latch (12) facing the center of the base (1), and a limiting groove (14) for inserting the other side of the latch (12) is provided on the lifting plate (8).

Images