Jacking device for bridge construction

Abstract

The utility model provides a jacking device for bridge construction, and belongs to the technical field of bridge construction. The bridge supporting frame can be used for supporting the jack; the number of the fixing mechanisms is six, and one fixing mechanism comprises a rotating seat which is fixedly connected to the upper end of the bridge supporting frame and can enable a pressing seat to rotate on the surface of the bridge supporting frame; the swing frame is rotationally connected into the rotating seat and can be used for driving the pressing seat to rotate; the pressing seat is fixedly connected to the side end of the swing frame and can fix the jack to the surface of the bridge supporting frame. When the jack is disassembled and assembled, after the jack is placed at the designated position of the surface of the bridge supporting frame, the hydraulic cylinder is operated to drive the swing rod to swing, meanwhile, after the swing frame is stressed, the jack is pressed by the pressing base, and therefore the jack can be fixed in the bridge supporting frame, and the jack can be disassembled and assembled through the device for automatically fixing or loosening the jack. And the jack can be replaced, disassembled and assembled without manual operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a jacking device for bridge construction. Background Art

[0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to the bridge construction technology and construction organization, construction management, and construction quality. The riverbank of the bridge approach should be filled with highly permeable soil and stone masonry slope protection should be used to prevent scouring. Diversion buildings are mostly built on-site in the dry season using firewood rafts, gabions, stone masonry or concrete according to the design.

[0003] The authorization publication number "CN213773012U" records "a bridge jacking device, which is used to jack up the main beam of a bridge with a pier-beam separation structure system. The bridge jacking device is located between the pier and the main beam, and includes two groups of hydraulic jacks and a group of screw mechanical jacks. The screw mechanical jack is located between the two groups of hydraulic jacks; the bridge jacking device also includes a plurality of support pads, which are located above the piers. The support pads are used to support the hydraulic jacks and the screw mechanical jacks. By using two different types of jacks, when the oil cylinder of the hydraulic jack loses pressure, the screw mechanical jack that has been synchronously followed can immediately self-lock and play a supporting role, thereby preventing the main beam from slipping. The use of support pads can achieve precise lifting while avoiding structural cracking caused by stress concentration of the jack, ensuring a smooth and safe jacking process."

[0004] The above patent ensures that the jacking process is smooth and safe, but in the prior art, when disassembling and assembling the jack, workers are required to install the jacks on the bridge support frame separately, which increases safety hazards and is time-consuming and labor-intensive. The present invention provides a device for automatically fixing or loosening the jack, thereby facilitating workers to replace and disassemble the jack. Utility Model Content

[0005] The utility model aims to provide a jacking device for bridge construction, aiming to solve the problem in the prior art that when disassembling and assembling the jacks, workers are required to install the jacks on the bridge support frame respectively, which increases safety hazards and is time-consuming and labor-intensive.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bridge construction jacking device, comprising:

[0008] Bridge support frames;

[0009] The fixing mechanism is provided with six groups, one of which includes:

[0010] A rotating seat, fixedly connected to the upper end of the bridge support frame;

[0011] A swing frame, rotatably connected to the rotating seat;

[0012] A pressure seat, fixedly connected to the side end of the swing frame;

[0013] Two pressure heads are fixedly connected to the lower end of the swing frame;

[0014] Two pressing blocks are fixedly connected to the lower end of the pressing seat;

[0015] A jack, arranged at the upper end of the bridge support frame;

[0016] A hydraulic cylinder fixedly connected to a side end of the bridge support frame;

[0017] A rotating plate, fixedly connected to the thin rod of the hydraulic cylinder;

[0018] A swing rod rotatably connected to the surface of the turntable;

[0019] The pull rod is rotatably connected to the side end of the swing rod, and the pull rod is fixedly connected to the two ends of the swing frame.

[0020] As a preferred solution of the utility model, both ends of the bridge support frame are rotatably connected to the limiting seats, and the side ends of the two limiting seats are fixedly connected with rotating plates.

[0021] As a preferred solution of the utility model, both side ends of the bridge support frame are fixedly connected with pull rings.

[0022] As a preferred solution of the utility model, a plurality of positioning holes are opened on the side end of the bridge support frame, and a rubber layer is provided on the side end of the bridge support frame.

[0023] As a preferred solution of the utility model, both side ends of the bridge support frame are fixedly connected with hooks.

[0024] As a preferred solution of the utility model, a slide groove is provided at the side end of the bridge support frame, and a balancing ball is slidably connected in the slide groove.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. In this scheme, when disassembling and assembling the jack, the jack is placed at a specified position on the surface of the bridge support frame, and then the hydraulic cylinder is operated to drive the swing rod to swing. At the same time, the swing frame presses the pressure seat to press the jack after being subjected to force, so that the jack can be fixed in the bridge support frame. Through the device that automatically fixes or releases the jack, the jack can be replaced and disassembled without the need for worker operation.

[0027] 2. In this solution, the pull rings arranged on both sides of the bridge support frame can facilitate the lifting device to drive the bridge support frame to move. The hooks arranged on both sides of the bridge support frame can be used to place the hydraulic pipes of the jack, which can effectively store and organize the hydraulic pipes. The positioning holes arranged on the side ends of the bridge support frame can install the bridge support frame in the bridge hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a three-dimensional diagram of the utility model;

[0030] Figure 2 This is an exploded view of the utility model;

[0031] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0032] Figure 4 It is an exploded view of the fixing mechanism in the utility model;

[0033] Figure 5 It is an enlarged view of the swing frame in the utility model;

[0034] Figure 6 It is an enlarged view of the bridge support frame in the utility model;

[0035] Figure 7 For this utility model Figure 6 A partial enlarged view of point A in the middle.

[0036] In the figure: 1. bridge support frame; 2. jack; 3. limit seat; 4. rotating plate; 5. positioning hole; 6. pull ring; 7. hook; 8. hydraulic cylinder; 9. rotating seat; 10. turntable; 11. swing rod; 12. pull rod; 13. swing frame; 14. pressure seat; 15. pressure head; 16. pressure block; 17. slideway; 18. balancing ball. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Example 1

[0039] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0040] A bridge construction jacking device, comprising:

[0041] A bridge support frame 1 can be used to support the use of a jack 2;

[0042] The fixing mechanism is provided with six groups, one of which includes:

[0043] The rotating seat 9 is fixedly connected to the upper end of the bridge support frame 1, so that the pressure seat 14 can rotate on the surface of the bridge support frame 1;

[0044] The swing frame 13 is rotatably connected to the rotating seat 9 and can be used to drive the pressing seat 14 to rotate;

[0045] The pressure seat 14 is fixedly connected to the side end of the swing frame 13, and can fix the jack 2 on the surface of the bridge support frame 1;

[0046] Two pressure heads 15 are fixedly connected to the lower end of the swing frame 13, which can increase the firmness of the swing frame 13 and the jack 2;

[0047] Two pressing blocks 16 are fixedly connected to the lower end of the pressing seat 14 and can be used to limit the jack 2 on the surface of the bridge support frame 1;

[0048] A jack 2 is provided at the upper end of the bridge support frame 1 and can be used to support the bridge;

[0049] The hydraulic cylinder 8 is fixedly connected to the side end of the bridge support frame 1 and can be used to drive the fixed mechanism to operate;

[0050] The rotating disk 10 is fixedly connected to the thin rod of the hydraulic cylinder 8 and can drive the swing rod 11 to swing;

[0051] The swing rod 11 is rotatably connected to the surface of the rotating disk 10 and can be used to drive the pull rod 12 to swing;

[0052] The pull rod 12 is rotatably connected to the side end of the swing rod 11. The pull rod 12 is fixedly connected to the two ends of the swing frame 13 and can drive the multiple pressure seats 14 to rotate.

[0053] like Figure 3 As shown, both ends of the bridge support frame 1 are rotatably connected to the limit seats 3, which can limit the jack 2 on the surface of the bridge support frame 1. The side ends of the two limit seats 3 are fixedly connected with rotating pieces 4, which can facilitate workers to rotate the limit seats 3 to position the jack 2.

[0054] like Figure 3 As shown, both side ends of the bridge support frame 1 are fixedly connected with pull rings 6, which can facilitate lifting and moving the bridge support frame 1.

[0055] like Figure 3 As shown, a plurality of positioning holes 5 are provided at the side end of the bridge support frame 1, so that the bridge support frame 1 can be fixedly installed in the bridge hole. A rubber layer is provided at the side end of the bridge support frame 1, which can be used to increase the firmness of the bridge support frame 1 and the wall.

[0056] like Figure 3 As shown, hooks 7 are fixedly connected to both side ends of the bridge support frame 1 and can be used to organize the hydraulic pipes of the jack 2.

[0057] like Figure 7 As shown, a slide groove 17 is provided at the side end of the bridge support frame 1, so that a balancing ball 18 can slide in the bridge support frame 1. The balancing ball 18 is slidably connected in the slide groove 17 and is used to adjust the flushness between the bridge support frame 1 and the bridge.

[0058] The working principle and use process of the utility model are as follows: when disassembling and assembling the jack 2, after placing the jack 2 at a designated position on the surface of the bridge support frame 1, the hydraulic cylinder 8 is operated to drive the swing rod 11 to swing, and at the same time, the swing frame 13 presses the pressure seat 14 against the jack 2 after being subjected to force, so that the jack 2 can be fixed in the bridge support frame 1. Through the device for automatically fixing or releasing the jack 2, the jack 2 can be replaced and disassembled without the need for worker operation.

[0059] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bridge construction lifting device, characterized in that: include: Bridge support frame (1); The fixing mechanism is provided with six groups, one of which includes: A rotating seat (9) fixedly connected to the upper end of the bridge support frame (1); A swing frame (13) rotatably connected to the rotating seat (9); A pressure seat (14) fixedly connected to a side end of the swing frame (13); Two pressure heads (15) are fixedly connected to the lower end of the swing frame (13); Two pressing blocks (16) are fixedly connected to the lower end of the pressing seat (14); A jack (2) is arranged at the upper end of the bridge support frame (1); A hydraulic cylinder (8) fixedly connected to a side end of the bridge support frame (1); A rotating disk (10) is fixedly connected to the thin rod of the hydraulic cylinder (8); A swing rod (11) rotatably connected to the surface of the rotating disk (10); The pull rod (12) is rotatably connected to the side end of the swing rod (11), and the pull rod (12) is fixedly connected to the two ends of the swing frame (13).

2. A bridge construction lifting device according to claim 1, characterized in that: Both ends of the bridge support frame (1) are rotatably connected to the limit seats (3), and the side ends of the two limit seats (3) are fixedly connected to rotating plates (4).

3. A bridge construction lifting device according to claim 2, characterized in that: Pull rings (6) are fixedly connected to both side ends of the bridge support frame (1).

4. A bridge construction lifting device according to claim 3, characterized in that: A plurality of positioning holes (5) are provided at the side end of the bridge support frame (1), and a rubber layer is provided at the side end of the bridge support frame (1).

5. A bridge construction lifting device according to claim 4, characterized in that: Both side ends of the bridge support frame (1) are fixedly connected with hooks (7).

6. A bridge construction lifting device according to claim 5, characterized in that: A sliding groove (17) is provided at the side end of the bridge support frame (1), and a balancing ball (18) is slidably connected in the sliding groove (17).

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