CN211547392U - Positioning device for mounting arch rib of tied arch bridge - Google Patents

Abstract

The utility model relates to a positioner is used in installation of tie rod arch bridge arch rib relates to the technical field of bridge construction, and it includes the installing support and is used for fixing the positioning mechanism of tie rod arch bridge arch rib, and positioning mechanism rotates with the installing support to be connected, and can fixed connection. The utility model discloses a rotate positioning mechanism and installing support and be connected, and both can fix, have the effect that can reach better welding operation.

Description

Positioning device for mounting arch rib of tied arch bridge

Technical Field

The utility model belongs to the technical field of the technique of bridge construction and specifically relates to a positioner is used in installation of tie rod arch bridge arch rib.

Background

The tied arch bridge is a bridge type integrating the advantages of arch and beam, and combines two basic structural forms of arch and beam together to bear load, so that the structural performance and combination action of bending and arch compression of beam are fully exerted, and the horizontal thrust of arch end is borne by pull rod, so that the support of arch end does not produce horizontal thrust. The arch and the chord are connected by vertical rods hinged at two ends. The Nielsen system can also be formed by using diagonal rods instead of straight rods. The interior of the arch bridge is a hyperstatic system, and the exterior of the arch bridge is statically determinate, so that the uneven settlement of the abutment is not influenced. Arch type combined system bridges are generally composed of arch ribs, tie bars, suspension rods (or upright posts) and the like.

A conventional positioning device for a tied arch bridge arch rib, such as chinese patent No. CN207331471U, discloses a device for positioning a tied arch bridge arch rib segment, comprising: the tie-bar arch bridge comprises a mounting bracket erected on the tie-bar arch bridge, a supporting block for placing an arch rib segment and a limiting plate for supporting the arch rib segment; the supporting block is arranged on the mounting bracket in a lifting manner, the limiting plate is connected to the mounting bracket in a sliding manner, the limiting plate is positioned on the mounting bracket through the fixing piece after sliding in place, and the side face of the arch rib segment is supported against the limiting plate. Wherein the limiting plate is the U type setting, and the staff carries out weldment work from the open end of limiting plate.

The above prior art solutions have the following drawbacks: because the limiting plate can only slide along the left and right directions in the attached drawing, only one side of the tied arch bridge arch rib is located at the opening end of the limiting plate for a long time, a worker can only weld from the opening end of the limiting plate, and other side surfaces of the tied arch bridge arch rib cannot be welded better.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a positioner is used in installation of tie rod arch bridge arch rib is connected with positioning mechanism's rotation between the installation for the staff can follow all directions and carry out weldment work, thereby makes weldment work's effect better.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a positioning device for installing the arch rib of a tied arch bridge comprises an installation support and a positioning mechanism for fixing the arch rib of the tied arch bridge, wherein the positioning mechanism is rotatably connected with the installation support and can be fixedly connected with the installation support.

By adopting the technical scheme, in actual application, a worker firstly fixes the mounting bracket at the arch rib of the tied arch bridge to be mounted, the positioning mechanism and the mounting bracket are fixed, and the worker performs welding work; the positioning mechanism is rotated, so that the peripheral side welding operation effect of the tied arch bridge arch rib can be better achieved by workers.

The present invention may be further configured in a preferred embodiment as: the positioning mechanism comprises a rotating frame and a fixing piece, the rotating frame is rotatably connected with the mounting bracket, and the fixing piece is fixed on one side of the rotating frame, which is close to the bowstring arch bridge suspender.

Through adopting above-mentioned technical scheme, in the in-service use, when the staff need follow not equidirectional weldment work, rotate the rotating turret to change the relative position between installing support and the rotating turret, make things convenient for the staff to follow different directions, carry out weldment work to the tied arch bridge arch rib.

The present invention may be further configured in a preferred embodiment as: a sliding rail is arranged on one side, close to the rotating frame, of the mounting support, and a sliding block is fixed at the sliding rail of the rotating frame.

Through adopting above-mentioned technical scheme, in the in-service use, the slider is connected with sliding of slide rail and can realize the connection that slides between installing support and the rotating turret to the realization makes things convenient for the staff to carry out weldment work's function from a plurality of directions.

The present invention may be further configured in a preferred embodiment as: the slider is the T type, the slider with the rotating turret forms the I shape, the slide rail is the T setting.

Through adopting above-mentioned technical scheme, in the in-service use, the slider that the T type set up can also the joint cooperation with the slide rail except that the cooperation of sliding, effectively reduces the probability that the rotating frame breaks away from the installing support under the action of gravity, ensures that the staff can accomplish weldment work.

The present invention may be further configured in a preferred embodiment as: and the bottom wall of the sliding rail is provided with a fixing groove for fixing the sliding block.

Through adopting above-mentioned technical scheme, in the in-service use, after the staff confirmed the position of revolving rack for the installing support, promote the slider orientation near the one end of installing support for in the slider can peg graft into the fixed slot, thereby the position of restriction slider.

The present invention may be further configured in a preferred embodiment as: and a limiting component used for limiting the position of the sliding block is arranged in the fixed groove.

Through adopting above-mentioned technical scheme, in the in-service use, spacing subassembly further restricts the relative position of slider for the installing support, effectively reduces the swivel mount and breaks away from the probability of installing support under the action of gravity.

The present invention may be further configured in a preferred embodiment as: the section of rotating turret is the U type, the mounting is provided with threely, sets up respectively the three inside wall of mounting.

Through adopting above-mentioned technical scheme, in the in-service use, the open end of rotating turret makes things convenient for the staff to carry out weldment work, and the jib of three mounting butt tied arch bridge forms the triangle stable structure for the jib and the arch rib of tied arch bridge are difficult for taking place relative displacement in welding process.

The present invention may be further configured in a preferred embodiment as: the fixing piece is set to be a jack.

By adopting the technical scheme, in the practical application, the acting force of the jack is large, and after the ground jack of the suspender of the tied arch bridge, the suspender of the tied arch bridge is not easy to move, so that the positioning requirement of welding work can be met.

The present invention may be further configured in a preferred embodiment as: and one side of the mounting bracket, which is far away from the positioning mechanism, is in threaded connection with a fixing bolt.

By adopting the technical scheme, in practical application, the fixing bolt penetrates through the arch rib of the tied arch bridge between installation and is abutted against the arch rib of the tied arch bridge, and the relative position of the suspender and the arch rib of the tied arch bridge is limited.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by rotating the mounting bracket and the positioning mechanism, a worker can perform welding work from different directions after rotating the positioning mechanism, so that the welding effect is better;

2. furthermore, the position of the sliding block is further limited through the arrangement of the fixing groove, so that the relative position of the rotating frame and the mounting bracket is fixed;

3. further, through the setting of spacing subassembly, effectively reduce the rotating frame and break away from the probability of installing support under the action of gravity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a sectional view showing a stopper assembly.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a bracket is installed; 11. accommodating grooves; 12. fixing bolts 13 and sliding rails; 131. fixing grooves; 2. a positioning mechanism; 21. a rotating frame; 211. a slider; 22. a fixing member; 3. a limiting component; 31. a limiting block; 32. and a limiting spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, for the utility model discloses a positioner is used in installation of tie rod arch bridge arch rib, including installing support 1 and the positioning mechanism 2 that is used for fixing tie rod arch bridge arch rib, positioning mechanism 2 rotates with installing support 1 to be connected, and can fixed connection.

The installation support 1 is arranged in a U shape, an accommodating groove 11 is formed in the opening end of one side plate of the installation support 1, the section of the accommodating groove 11 is arranged in a semicircular shape, and the diameter of the accommodating groove 11 is equal to that of a tie rod arch bridge hanging rod; one side of the mounting bracket 1 far away from the positioning mechanism 2 is in threaded connection with a fixing bolt 12; the open end of the mounting bracket 1 is clamped with an arch rib of the tied arch bridge, and the fixing bolt passes through the mounting bracket 1 and then abuts against the arch rib of the tied arch bridge.

The positioning mechanism 2 comprises a rotating frame 21 and a fixing piece 22, the rotating frame 21 is rotatably connected with the mounting bracket 1, and the fixing piece 22 is fixed on one side of the rotating frame 21 close to the bowstring arch bridge suspender; preferably, the cross section of the rotating frame 21 is U-shaped, three fixing members 22 are provided, and are respectively disposed in the centers of three inner side walls of the fixing members 22, and the fixing members 22 are preferably configured as jacks.

A slide rail 13 is arranged on one side of the mounting bracket 1 close to the rotating frame 21, and a slide block 211 is fixed on the rotating frame 21 at the slide rail 13; slider 211 all is the T type setting with slide rail 13, and slider 211 forms the I shape with rotating turret 21, effectively reduces the probability that rotating turret 21 breaks away from installing support 1.

A fixing groove 131 for fixing the sliding block 211 is formed in the bottom wall of the sliding rail 13, and a limiting component 3 for limiting the position of the sliding block 211 is arranged in the fixing groove 131; spacing subassembly 3 includes stopper 31 and spacing spring 32, and the axial direction of spacing spring 32 sets up with the length direction of slider 211 is perpendicular, and spacing spring 32 imbeds the lateral wall setting of fixed slot 131, and spacing spring 32 is in the fixed stopper 31 of the lateral wall department of fixed slot 131, and the distance between stopper 31 and the fixed slot 131 diapire equals the thickness of slider 211 horizontal segment.

Stopper 31 is the triangular prism form setting, and a side of stopper 31 and the lateral wall parallel and level of fixed slot 131 set up, and the contained angle between the side that stopper 31 is close to the fixed slot 131 diapire and the horizontal plane is less than the contained angle between the side that stopper 31 keeps away from the fixed slot 131 diapire and the horizontal plane.

The implementation principle of the embodiment is as follows: when in use, a worker firstly installs the mounting bracket 1 on the arch rib and fixes the mounting bracket by the fixing bolt; the sliding block 211 slides into the sliding groove and is fixed in the fixing groove 131, and the limiting block 31 limits the movement of the sliding block 211 under the action of the limiting spring 32; the fixture 22 is adjusted so that the fixture 22 abuts against the boom to perform welding work, and after one side is completed, the position of the turret 21 is adjusted to continue welding work. When the staff welds one side between jib and the arch rib, weld its offside next for jib and arch rib are difficult more to take place relative displacement.

The staff can also set up the slide plate at the opening of installing support 1 according to actual need for make things convenient for slider 211 to slide, stabilize the position of rotating turret 21 simultaneously, and the slide plate is level and level with the board of being close to rotating turret 21 one side between the installation and sets up, and offer with 11 slick and sly formation cylindric cylinder grooves that are used for holding the jib of holding tank.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. A positioning device for installing a tied arch bridge arch rib comprises an installation support (1) and a positioning mechanism (2) for fixing the tied arch bridge arch rib, and is characterized in that: the positioning mechanism (2) is rotatably connected with the mounting bracket (1) and can be fixedly connected with the mounting bracket.

2. A tie rod arch bridge rib setting and positioning device as claimed in claim 1, wherein: the positioning mechanism (2) comprises a rotating frame (21) and a fixing piece (22), the rotating frame (21) is rotatably connected with the mounting bracket (1), and the fixing piece (22) is fixed on one side, close to the arch rib of the tied arch bridge, of the rotating frame (21).

3. A tie rod arch bridge rib setting and positioning device as claimed in claim 2, wherein: a sliding rail (13) is arranged on one side, close to the rotating frame (21), of the mounting bracket (1), and a sliding block (211) is fixed on the rotating frame (21) at the sliding rail (13).

4. A tie rod arch bridge rib setting and positioning device as claimed in claim 3, wherein: slider (211) are the T type, slider (211) with swivel mount (21) form the I shape, slide rail (13) are the T setting.

5. A tie rod arch bridge rib installation positioning device as set forth in claim 4, wherein: the bottom wall of the sliding rail (13) is provided with a fixing groove (131) for fixing the sliding block (211).

6. A tie rod arch bridge rib setting and positioning device as claimed in claim 5, wherein: and a limiting component (3) used for limiting the position of the sliding block (211) is arranged in the fixing groove (131).

7. A tie rod arch bridge rib setting and positioning device as claimed in claim 2, wherein: the section of rotating turret (21) is the U type, mounting (22) are provided with threely, set up respectively three inside wall of mounting (22).

8. A tie rod arch bridge rib setting and positioning device as claimed in claim 2, wherein: the fixing member (22) is provided as a jack.

9. A tie rod arch bridge rib setting and positioning device as claimed in claim 1, wherein: and one side of the mounting bracket (1) far away from the positioning mechanism (2) is in threaded connection with a fixing bolt (12).

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