CN216445806U

CN216445806U - Steel pipe encircles quick closure device

Info

Publication number: CN216445806U
Application number: CN202123129365.9U
Authority: CN
Inventors: 张�杰; 普银波; 张德长; 曾金河; 胡雪峰; 王振利
Original assignee: China Railway 11th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Current assignee: China Railway 11th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-06
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to a closure device for a bridge steel pipe arch, in particular to a rapid closure device for a steel pipe arch, which comprises an adjusting block, a chord pipe, a butt joint sleeve, a flange plate, a rib plate and a lining pipe, wherein the adjusting block is arranged on the inner side of the bridge steel pipe arch; two ends of the adjusting block are fixedly connected with the flange plate in a butt joint mode, one end of the rib plate is fixedly connected in the chord tube, the other end of the rib plate is fixedly connected with the flange plate, the inner lining tube is arranged at the center of the flange plate, a butt joint sleeve is sleeved on the periphery of the adjusting block, and two ends of the butt joint sleeve are fixedly connected with the chord tube in a butt joint mode. The adjusting block comprises two connecting plates, two turn buckle screws and a turn buckle nut are arranged between the two connecting plates, two sides of the turn buckle nut are respectively connected with one turn buckle screw, and the turn buckle screws are fixedly connected with the connecting plates. The steel pipe closure device can quickly and accurately complete closure when in use, solves the problems of misalignment and twisting deviation of steel pipes on two sides and overlarge or undersize closure size in the conventional closure mode, has a simple structure, is convenient to operate, and ensures the construction progress and precision.

Description

Steel pipe encircles quick closure device

Technical Field

The utility model relates to a bridge closure device, in particular to a steel pipe arch rapid closure device.

Background

When building a dam or a bridge, construction is started from two ends, and finally the two ends are jointed in the middle, which is called 'closure'. The closure of the bridge refers to the closure of the bridge when the bridge is constructed from two ends of a river respectively and the last bridge deck is constructed in the process from the last construction. When a road needs to pass through a section with complex ground texture conditions or with navigation requirements, the bridge is widely adopted as a structural form with large spanning capacity and large navigation capacity, and the steel pipe arch through-type beam-arch combined bridge with the advantages of material saving, large span and the like is widely applied all over the country.

However, many problems are encountered in the existing bridge construction process, for example, in the steel pipe arch closure construction process, because a large-scale steel pipe arch rib structure system is sensitive to the influence of temperature, the elevation of a closure opening and the size of a section are obviously changed along with the rise and fall of the temperature, the misalignment and the twisting deviation of steel pipes on two sides and the oversize or undersize of the closure are easy to occur in closure installation, meanwhile, the closure is forced to generate stress easily to cause the cracking of an interface welding seam, the engineering quality is reduced, and the stress-free closure construction requirement cannot be met. Therefore, it is especially important to research a steel pipe arch rapid closure device.

Disclosure of Invention

The utility model aims to: the steel pipe arch rapid closure device is simple in structure and convenient and fast to use, and solves the problems that steel pipes on two sides are staggered, twisted and deflected in the closure installation process of a steel pipe arch and the closure size is uncertain.

The technical scheme of the utility model is as follows:

a steel pipe arch rapid closure device comprises an adjusting block, a chord pipe, a butt joint sleeve, a flange plate, a rib plate and a lining pipe; the method is characterized in that: the two ends of the adjusting block are fixedly connected with the flange plates in a butt joint mode, one end of each rib plate is fixedly connected into the chord tube, the other end of each rib plate is fixedly connected with the flange plate, the center of the flange plate is provided with the lining tube, the periphery of the adjusting block is sleeved with the butt joint sleeve, and the two ends of the butt joint sleeve are fixedly connected with the chord tube in a butt joint mode.

Furthermore, the adjusting block comprises two connecting plates, a turn buckle screw and a turn buckle nut are arranged between the two connecting plates, two sides of the turn buckle nut are respectively connected with the turn buckle screw, and the turn buckle screw is fixedly connected with the connecting plates.

Furthermore, the turn buckle screw rod and the turn buckle nut are in threaded connection, internal threads at two ends of the turn buckle nut are left-handed threads and right-handed threads respectively, the turn buckle nut is rotated, the length of the turn buckle screw rods on two sides is changed simultaneously, and then the distance between the two connecting plates is adjusted.

Furthermore, the flange plate and the connecting plate are respectively provided with six corresponding bolt holes which are uniformly distributed in an annular shape.

Furthermore, the flange plate is fixedly connected with the adjusting block through bolts.

Furthermore, the number of the rib plates is six, one ends of the rib plates are uniformly distributed and welded in the chord pipes, and the other ends of the rib plates are welded on the outer end face of the flange plate.

Furthermore, the ribbed plate is fixedly connected to the periphery of the lining pipe.

Furthermore, a steel gasket is arranged at the joint of the chord tube and the butt joint sleeve.

Compared with the prior art, the utility model has the advantages and positive effects that,

the steel pipe arch rapid closure device overcomes the defects of the prior art, and aims at the problem that the steel pipe arches at two sides are easy to have staggered edges and skew in the closure construction process of the steel pipe arches, the chord pipes and the flange plates are respectively connected and fixed through the rib plates, and the flange plates are fixedly connected with the connecting plates, so that the butt joint center lines of the chord pipes at two sides are ensured to be on the same straight line; the fixed connection of the lining pipe and the ribbed plate enhances the connection rigidity between the ribbed plate and the flange plate; the arrangement of the turnbuckle screw rod and the turnbuckle nut can adjust and control the distance in the closure process; the steel liner is arranged at the joint of the chord tube and the butt sleeve to prevent the bottom of the welding seam from generating defects; the steel pipe closure device can quickly and accurately complete closure in use, solves the problems of misalignment and twisting deviation of steel pipes on two sides and overlarge or undersize closure size, and ensures construction progress and precision.

Description of the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention.

In the figure: 1. a turnbuckle screw; 2. a turnbuckle nut; 3. a connecting plate; 4. a flange plate; 5. a liner tube; 6. a rib plate; 7. a string pipe; 8. a steel liner; 9. butting a sleeve; 10. a bolt; 11. and adjusting the block.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in the attached

drawings

1 and 2, the steel pipe arch rapid closure device comprises an adjusting block 11, a chord pipe 7, a butt joint sleeve 9, a flange plate 4, a rib plate 6 and an inner lining pipe 5; two ends of the adjusting block 11 are fixedly connected with the flange plate 4 in a butt joint mode, one end of the rib plate 6 is fixedly connected into the chord tube 7, the other end of the rib plate 6 is fixedly connected with the flange plate 4, the center of the flange plate 4 is provided with the lining tube 5, the periphery of the adjusting block 11 is sleeved with the butt joint sleeve 9, and two ends of the butt joint sleeve 9 are fixedly connected with the chord tube 7 in a butt joint mode.

The adjusting block 11 comprises two connecting plates 3, two turn buckle screws 1 and a turn buckle nut 2 are arranged between the two connecting plates 3, two sides of the turn buckle nut 2 are respectively connected with the turn buckle screws 1, and the turn buckle screws 1 are fixedly connected with the connecting plates 3.

The internal thread at the two ends of the turn-buckle nut 2 is left-handed thread and right-handed thread respectively, the turn-buckle screw 1 is in threaded connection with the turn-buckle nut 2, the turn-buckle nut 2 rotates, the length of the turn-buckle screw 1 on the two sides is changed simultaneously, and then the distance between the two connecting plates 3 is adjusted. The threaded connection of the turn buckle screw 1 and the turn buckle nut 2 is used for adjusting and controlling the closing distance of the chord tubes on two sides in the closing process.

The flange plate 4 and the connecting plate 3 are respectively and correspondingly provided with six bolt holes 10, and the bolt holes 10 are uniformly distributed in an annular shape. The flange plate 4 and the adjusting block 11 are fixedly connected through bolts 10.

Six rib plates 6 are arranged, one ends of the rib plates 6 are uniformly welded in the chord pipes 7, and the other ends of the rib plates 6 are welded on the outer end face of the flange plate 4. The rib plates 6 are respectively connected and fixed with the chord pipes 7 and the flange plates 4, and the flange plates 4 are fixedly connected with the connecting plates 3, so that the center lines of the butt joint of the chord pipes 7 on the two sides are ensured to be on the same straight line.

Rib 6 and interior bushing pipe 5 periphery fixed connection, interior bushing pipe 5 and the fixed connection of rib 6 have strengthened the rigidity of being connected between rib 6 and ring flange 4.

And a steel gasket 8 is arranged at the joint of the chord tube 7 and the butt joint sleeve 9. The purpose of the steel liner 8 arranged at the joint of the chord tube 7 and the butt sleeve 9 is to prevent the defect at the bottom of the welding seam in the welding process.

In the specific use of the utility model, before the closure operation is prepared, the rib plates 6 are uniformly welded on the inner wall of the chord tube 7, the lining tube 5 is welded at the center of the flange plate 4, then the other end of the rib plate 6 is welded on the flange plate 4, and the inner side of the rib plate 6 is tightly adhered to the lining tube 5 and welded and fixed; one end of a turn buckle bolt screw 1 in the adjusting block 11 is fixed on the connecting plate 3, and the other end is screwed with the turn buckle bolt nut 2. When the environmental temperature and other work preparation reach the closure condition, the closure work starts, firstly, after the arch rib is lifted in place, the linearity of the arch rib is adjusted through observation of a monitoring person, the flange plate 4 is butted with the adjusting block 11, the flange plate 4 and the connecting plate 3 are locked and fixed through the bolt 10, under the matching of a truck crane, the turnbuckle bolt and nut 2 retracts and hoists, the turnbuckle and nut is finely adjusted to enable no gap to exist between the flange plate 4 and the connecting plate 3, the linearity is adjusted again, the flange plate 4 is welded, the chord tube 7 outside the closure section is welded, the chord tube 7 and the butt joint sleeve 9 are welded, and closure is completed.

The steel pipe arch rapid closure device overcomes the defects of the prior art, and aims at solving the problems that the steel pipe arches on two sides are easy to have misalignment and skew twisting in the steel pipe arch closure construction process.

At present, the technical scheme of the application has been subjected to pilot plant test, namely small-scale experiment before large-scale mass production of products; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been set forth.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A steel pipe arch rapid closure device comprises an adjusting block (11), a chord pipe (7), a butt joint sleeve (9), a flange plate (4), a rib plate (6) and an inner lining pipe (5); the method is characterized in that: the two ends of the adjusting block (11) are fixedly connected with the flange plate (4) in a butt joint mode, one end of the rib plate (6) is fixedly connected into the chord tube (7), the other end of the rib plate (6) is fixedly connected with the flange plate (4), the center of the flange plate (4) is provided with the lining tube (5), the outer periphery of the adjusting block (11) is sleeved with the butt joint sleeve (9), and the two ends of the butt joint sleeve (9) are fixedly in butt joint with the chord tube (7).

2. The steel pipe arch rapid closure device according to claim 1, wherein: the adjusting block (11) comprises two connecting plates (3), a turn buckle screw (1) and a turn buckle nut (2) are arranged between the two connecting plates (3), two sides of the turn buckle nut (2) are respectively connected with the turn buckle screw (1), and the turn buckle screw (1) is fixedly connected with the connecting plates (3).

3. The steel pipe arch rapid closure device according to claim 2, wherein: the turn buckle is characterized in that the turn buckle screw rod (1) is in threaded connection with the turn buckle nut (2), internal threads at two ends of the turn buckle nut (2) are left-handed threads and right-handed threads respectively, the turn buckle nut (2) is rotated, the length of the turn buckle screw rod (1) on two sides is changed simultaneously, and then the distance between the two connecting plates (3) is adjusted.

4. The steel pipe arch rapid closure device according to claim 1, wherein: the flange plate (4) and the connecting plate (3) are respectively and correspondingly provided with six bolt (10) holes, and the bolt (10) holes are uniformly distributed in an annular shape.

5. The steel pipe arch rapid closure device according to claim 1, wherein: the flange plate (4) is fixedly connected with the adjusting block (11) through a bolt (10).

6. The steel pipe arch rapid closure device according to claim 1, wherein: the ribbed plate (6) be provided with six, ribbed plate (6) one end equipartition welding is in chord tube (7), ribbed plate (6) other end welding is in ring flange (4) outer terminal surface.

7. The steel pipe arch rapid closure device according to claim 1, wherein: the ribbed plate (6) is fixedly connected with the periphery of the lining pipe (5).

8. The steel pipe arch rapid closure device according to claim 1, wherein: and a steel gasket (8) is arranged at the joint of the chord tube (7) and the butt joint sleeve (9).