Vertical positioning auxiliary device for hoisting of double-section prefabricated assembled pier

Abstract

The utility model discloses a vertical positioning auxiliary device for hoisting a double-section prefabricated assembled pier, which belongs to the technical field of pier construction equipment and comprises an annular base fixed at the upper part of the lower section of the pier in a surrounding manner; the wedge-shaped opening guide plates are uniformly fixed to the annular base at intervals in the circumferential direction, and at least parts of the free ends of the wedge-shaped opening guide plates extend upwards and protrude out of the top face of the lower section; the plurality of electric control rope tensioners are uniformly fixed on the annular base at intervals along the circumferential direction, and one end of each rope is provided with a lock catch used for connecting the upper section. The auxiliary device can assist in pier splicing and butt joint, and is simple and light in structure and easy to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge pier construction equipment, and in particular relates to a double-segment prefabricated assembled bridge pier hoisting vertical positioning auxiliary device. Background Art

[0002] With the rapid development of modern bridge engineering, the application of prefabricated assembly technology in bridge construction is becoming more and more widespread. As a new type of structure, prefabricated assembled bridge piers have attracted attention from the engineering community for their advantages such as fast construction speed and easy quality control. However, in the actual construction process, the existing docking equipment is often complex in structure and inflexible in operation, making the entire docking process cumbersome and consuming a lot of time for fine-tuning and positioning, reducing construction efficiency; traditional pier segment docking technology relies more on manual operation, often requiring manual pulling of ropes to adjust the position of the segment, etc., which is not only labor-intensive, but also difficult to ensure the balance of tension due to the unevenness of manual force, affecting the docking quality. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provides a double-segment prefabricated pier hoisting vertical positioning auxiliary device, which can assist in pier assembly and docking, has a simple and light structure, and is easy to operate.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] The utility model provides a double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device, comprising:

[0006] The annular base is fixed around the upper part of the lower segment of the pier;

[0007] A plurality of wedge-shaped opening guide plates are fixed to the annular base at uniform intervals along the circumferential direction, and the free ends at least partially extend upward and protrude from the top surface of the lower segment;

[0008] A plurality of electrically controlled rope tensioners are fixed to the annular base at even intervals along the circumferential direction, and a lock buckle for connecting the upper segment is arranged at one end of the rope.

[0009] Furthermore, at least two laser plumb meters are evenly spaced along the circumferential direction on the annular base, and are used to emit plumb bob laser lines facing the sides of the pier respectively.

[0010] Furthermore, the annular base is a rectangular frame structure, and strip-shaped horizontal bubble-type spirit levels are arranged on the frames surrounding the base.

[0011] Furthermore, the cross section of the wedge-shaped opening guide plate is L-shaped, and the top end is a wedge-shaped portion extending outwardly in an inclined manner.

[0012] Furthermore, the cross section of the wedge-shaped opening guide plate is L-shaped, the lower half is a guide portion extending vertically, and the upper half is a wedge-shaped portion extending outwardly in an inclined manner.

[0013] Furthermore, the wedge-shaped portion is a plastic elastic structure.

[0014] Furthermore, a wedge-shaped opening guide plate is respectively provided at the four corners of the rectangular frame of the annular base.

[0015] Furthermore, an electrically controlled rope tensioner is respectively arranged in the middle of the four sides of the rectangular frame of the annular base.

[0016] Furthermore, a laser plumb line is provided on at least two adjacent frames of the rectangular frame of the annular base.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a double-segment prefabricated assembled bridge pier hoisting vertical positioning auxiliary device, which adopts an annular base fixed around the upper part of the lower segment of the bridge pier, and a plurality of wedge-shaped opening guide plates are arranged on the annular base for guiding the upper segment, and an electrically controlled rope tensioner is used to pull the upper segment for easy position adjustment, so as to assist the bridge pier hoisting and docking operation, realize fast and automatic vertical positioning operation, shorten the construction time, reduce the labor intensity, and improve the flexibility and safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a double-segment prefabricated assembled bridge pier hoisting vertical positioning auxiliary device provided by an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A front view of

[0021] Figure 3 yes Figure 1 Application diagram of lifting vertical positioning.

[0022] In the figure:

[0023] 1. Ring base; 2. Wedge-shaped opening guide plate; 3. Electric-controlled rope tensioner; 4. Laser plumb line; 5. Guide part; 6. Wedge-shaped part; 7. Level; 8. Rope; 9. Lock; 10. Upper segment; 11. Lower segment; 12. Target; 13. Lifting rope. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "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 accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be 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 by specific circumstances.

[0027] like Figure 1 , Figure 2 As shown, an embodiment of the utility model provides a double-segment prefabricated assembled bridge pier hoisting vertical positioning auxiliary device, including an annular base 1, a wedge-shaped opening guide plate 2, an electric-controlled rope tensioner 3 and a laser plumb line 4.

[0028] The annular base 1 is in various structural forms such as a circular frame structure, a rectangular frame structure, or an elliptical frame structure, and can also be in other irregular shapes. In this embodiment, the annular base 1 is in a rectangular frame structure, and can be fixed around the upper part of the lower segment 11 of the pier, close to the joint between the upper segment 10 and the lower segment 11, by existing connection methods such as bolts and buckles.

[0029] A strip-shaped horizontal bubble level 7 is arranged on the frame around the annular base 1, and the level is finely adjusted by the level 7.

[0030] As a specific embodiment, the annular base 1 may be composed of annular vertical plates assembled in an annular shape along the circumferential direction, and horizontal transverse plates arranged on the outer sides of the vertical plates along the circumferential direction and extending outward.

[0031] The connection between the horizontal plate and the vertical plate can be integrated, welded, bolted or snap-fitted. The wedge-shaped opening guide plate 2 is arranged on the top surface of the vertical plate, and the electric-controlled rope tensioner 3 and the laser vertical leveler 4 are arranged on the horizontal plate.

[0032] In order to reduce weight, the horizontal and vertical boards can adopt a hollow structure.

[0033] A plurality of wedge-shaped opening guide plates 2 are evenly spaced and fixed along the circumferential direction. Specifically, a wedge-shaped opening guide plate 2 is respectively arranged at the four corners of the rectangular frame of the annular base 1. The free ends of the four wedge-shaped opening guide plates 2 at least partially extend upward and protrude from the top surface of the lower segment 11, so as to provide preliminary guidance for the hoisting of the upper segment 10.

[0034] Specifically, the cross section of the wedge-shaped opening guide plate 2 is L-shaped, the lower half is a vertically extending guide portion 5, and the upper half is a wedge-shaped portion 6 extending outwardly at an angle. Among them, the L-shaped structural portion of the guide portion 5 can be used to fit the column corner of the square lower segment 11 to be docked, and extend upward to protrude from the top surface of the lower segment 11; the protruding portion can match the column corner at the lower end of the upper segment 10, and is used to limit and guide the upper segment 10 to move downward for docking. The wedge-shaped portion 6 is designed to extend outward at an angle and is configured as a plastic elastic structure. When the upper segment 10 is hoisted and moved downward to contact the vertical positioning auxiliary device, it can play a certain buffering role to avoid strong collision or shaking during the initial docking and damage to the wedge-shaped opening guide plate 2.

[0035] A plurality of electric-controlled rope tensioners 3 are fixed to the annular base 1 at uniform intervals along the circumferential direction. Specifically, an electric-controlled rope tensioner 3 is respectively arranged in the middle of the four frames of the rectangular frame of the annular base 1, wherein a lock buckle 9 is arranged at one end of the rope 8, which is used to connect the corresponding connection part of the upper segment 10 during hoisting and docking, such as a ring buckle. The rope 8 can be made of fine steel wire, nylon (nylon fiber), polyester (polyester fiber), polypropylene (polypropylene fiber), Kevlar (aramid fiber), Dyneema (ultra-high molecular weight polyethylene fiber) and other materials to meet the pulling strength and safety.

[0036] During use, a section of connecting rope 8 can be pre-bolted to the corresponding connecting part of the upper segment 10, and after the upper segment 10 is hoisted, one end of the rope 8 of the control rope tensioner is connected to the connecting rope 8 through the lock buckle 9, which facilitates the connection operation of the rope 8. That is, the rope 8 of the control rope tensioner can be connected in a multi-section butt-joint manner.

[0037] The movement of the rope 8 is controlled by four electrically controlled rope tensioners 3 to adjust the front, rear, left, and right positions of the upper segment 10 so as to better align the lower segment 11 to be docked below.

[0038] In this embodiment, the electric rope tensioner 3 includes a motor, a reducer, a drum, a rope 8, a lock 9, a brake, a control system and an external power supply. Among them, the external power supply is used to provide power to each device, and the PLC control system controls the motor, the reducer and the brake to realize the start and stop movement of the drum, thereby realizing the retraction and release of the rope 8. It should be particularly noted that the electric rope tensioner 3 of this embodiment only briefly describes its composition structure to facilitate understanding of the function and use of the electric rope tensioner 3; it can adopt various forms such as conventional automatic rope retractors, rope retractors, automatic rope machines, etc. in the prior art. For those skilled in the art, as long as the automatic retraction and release function of the rope 8 can be realized, no specific limitation or improvement is made to the layout of each internal device, circuit connection, etc.

[0039] At least two laser plumb meters 4 are evenly spaced along the circumferential direction on the annular base 1 and are used to emit plumb bob laser lines facing the sides of the pier columns respectively.

[0040] In this embodiment, at least two adjacent frames of the rectangular frame of the annular base 1 are provided with a laser plumb line 4. Both laser plumb lines 4 are installed in a detachable manner such as by bolt connection of the base, so as to facilitate separate maintenance and storage. Figure 3 As shown, a target 12 is respectively arranged on the same side of the upper segment 10 and the lower segment 11. When the upper and lower targets 12 are docked to meet the accuracy requirements, they should be in the same vertical direction, that is, located on the plumb line emitted by the laser plumb 4. Therefore, by judging whether the upper and lower targets 12 are located on the plumb line emitted by the laser plumb 4, it is determined whether the vertical positioning meets the requirements.

[0041] In this embodiment, the upper segment 10 can be hoisted by a hoisting rope 13 using a hoisting machine, a tower crane or other hoisting equipment.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A double-segment prefabricated pier hoisting vertical positioning auxiliary device, characterized in that: include: The annular base is fixed around the upper part of the lower segment of the pier; A plurality of wedge-shaped opening guide plates are fixed to the annular base at uniform intervals along the circumferential direction, and the free ends at least partially extend upward and protrude from the top surface of the lower segment; A plurality of electrically controlled rope tensioners are fixed to the annular base at even intervals along the circumferential direction, and a lock buckle for connecting the upper segment is arranged at one end of the rope.

2. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 1 is characterized in that: At least two laser plumb meters are evenly spaced along the circumferential direction on the annular base, and are used to emit plumb bob laser lines facing the sides of the pier respectively.

3. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 1 is characterized in that: The annular base is in a rectangular frame structure, and strip-shaped horizontal bubble-type level gauges are arranged on the frames around the base.

4. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 1 is characterized in that: A wedge-shaped opening guide plate is respectively arranged at the four corners of the rectangular frame of the annular base.

5. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 4 is characterized in that: The cross section of the wedge-shaped opening guide plate is L-shaped, the lower half is a guide portion extending vertically, and the upper half is a wedge-shaped portion extending outwardly in an inclined manner.

6. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 5 is characterized in that: The wedge-shaped portion is a plastic elastic structure.

7. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 3 is characterized in that: The annular base is in the form of a circular frame structure, a rectangular frame structure or an elliptical frame structure.

8. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 3 is characterized in that: An electric-controlled rope tensioner is respectively arranged in the middle of four frames of the rectangular frame of the annular base.

9. The double-segment prefabricated bridge pier hoisting vertical positioning auxiliary device according to claim 3 is characterized in that: A laser plumb line is provided on at least two adjacent frames of the rectangular frame of the annular base.

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