CN218911134U

CN218911134U - Temporary steel structure support for lower-bearing type steel truss girder dragging construction

Info

Publication number: CN218911134U
Application number: CN202222698949.6U
Authority: CN
Inventors: 彭高峰; 吴道洪; 谢益平; 陈雪龙; 吴炼; 蒋闯; 王东里
Original assignee: China Railway 12th Bureau Group Co Ltd; Seventh Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; Seventh Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-04-25
Anticipated expiration: 2032-10-13

Abstract

The utility model belongs to the technical field of steel structure brackets, and solves the problems that the support plate and a support column are inconvenient to assemble and disassemble, the transportation is inconvenient, and the support plate cannot be replaced quickly when damaged. The utility model provides a drag construction temporary steel structure support of underlaying steel truss, including bottom plate, support sleeve, backup pad, support column, connecting block, the top of bottom plate is through connecting block fixed mounting support sleeve, and support sleeve is inside to be equipped with the cavity, and the support column passes through elevating system with support sleeve to be connected for the support column is in the lift removal of cavity, and in the cavity was inserted to the one end of support column, the other end of support column stretched out the cavity and is connected through firm subassembly with the backup pad for the quick assembly disassembly of backup pad and support column. The device can realize quick disassembly of the support plate and the support column through the stabilizing component, and can effectively improve the construction efficiency.

Description

Temporary steel structure support for lower-bearing type steel truss girder dragging construction

Technical Field

The utility model belongs to the technical field of steel structure brackets, and particularly relates to a temporary steel structure bracket for traction construction of a lower-bearing steel truss girder.

Background

The steel truss bridge is a solid steel plate girder bridge in a regular hollow structural form, and the whole structure is in a girder stress mode, namely a structure mainly bearing bending moment and shearing force, and consists of a brake connection system, a bridge deck, a support and a bridge pier (bridge abutment). According to different supporting modes of the main girder, the girder comprises a simple steel girder bridge, a continuous steel girder bridge and a cantilever steel girder bridge; according to different bridge deck positions, the bridge deck is divided into an upper-bearing type steel truss bridge and a lower-bearing type steel truss bridge. The lower-bearing steel truss girder bridge needs to support and reinforce the girder by a temporary support steel frame during the dragging construction so as to improve the construction safety.

The application number CN202121916538.9 discloses a temporary steel structure bracket for the dragging construction of a lower-bearing steel truss girder, which comprises a bottom plate, a supporting plate arranged above the bottom plate and a lifting supporting mechanism connected between the bottom plate and the supporting plate; the lifting supporting mechanism comprises a supporting sleeve and a supporting column, an inner cavity is formed in the supporting sleeve in a hollowed mode, a limit screw is connected to one side of the top of the supporting sleeve in a threaded mode, the top end of the supporting column is connected with the supporting plate, the lower half section of the supporting column is inserted into the inner cavity, and a plurality of limit holes are formed in the lower half section of the supporting column.

The temporary steel structure bracket for the lower-bearing steel truss girder dragging construction has the following defects when in use: inconvenient dismouting of backup pad and support column can lead to the transportation inconvenient and when the backup pad damages, can not quick replacement's problem.

Disclosure of Invention

The utility model provides a temporary steel structure support for the traction construction of a lower-bearing steel truss girder, which aims to solve the problems that the support plate and the support column of the temporary steel structure support for the traction construction of the existing lower-bearing steel truss girder are inconvenient to assemble and disassemble, and the transportation is inconvenient and the support plate cannot be replaced quickly when damaged.

The utility model is realized by adopting the following technical scheme: the utility model provides a drag construction temporary steel structure support of hypostyle steel truss, includes bottom plate, support sleeve, backup pad, support column, connecting block, and the top of bottom plate is through connecting block fixed mounting support sleeve, and support sleeve is inside to be equipped with the cavity, and the support column passes through elevating system with support sleeve to be connected for the lift of support column in the cavity is removed, and in the one end of support column inserts the cavity, the other end of support column stretches out the cavity and is connected through firm subassembly with the backup pad for the quick assembly disassembly of backup pad and support column.

Preferably, the lifting mechanism comprises slots, a limit screw and nuts, a plurality of groups of slots which are symmetrically distributed are formed in the side surface of the support column along the length direction of the side surface of the support column, a group of holes which are symmetrically distributed are formed in the upper portion of the side surface of the support sleeve, the nuts are arranged in the holes, and one end of the limit screw penetrates through the nuts to be screwed into the slots to position the support column.

Preferably, the stabilizing component comprises a convex block, a first lantern ring, a movable column, a spring, a groove, a limiting groove, a through hole and a second lantern ring, wherein the top of the supporting column is provided with the groove, the bottom of the supporting column is provided with the convex block which is used for being inserted into the groove, the side surface of the convex block is provided with a group of limiting grooves which are symmetrically distributed, and the surface of the supporting column is symmetrically provided with a group of through holes which are communicated with the groove; the movable column is arranged in the through hole in a sliding manner, one end of the through hole, which is close to the protruding block, is provided with a limiting baffle ring used for limiting the protruding length of the movable column, the second lantern ring is fixedly connected to the inner wall of the through hole and positioned at one side far away from the protruding block, the first lantern ring is fixedly sleeved on the outer wall of the movable column and positioned at one side close to the protruding block, the second lantern ring is movably sleeved on the outer side of the movable column, the spring is sleeved on the outer side of the movable column, and two ends of the spring are respectively connected with the first lantern ring and the second lantern ring; one end of the movable column, which is close to the protruding block, is of a hemispherical structure, the limiting groove is of a spherical groove, and when the movable column is connected with the limiting groove in a clamping mode, the first lantern ring is abutted to the limiting baffle ring under the action of the spring, and the maximum diameter of the hemispherical structure of the movable column is located on the outer side of the spherical groove.

Preferably, the other end of the movable column can be further provided with a pull rod structure, and the movable column can move in the through hole through the pull rod structure.

Preferably, a limiting assembly for preventing the limiting screw from falling off is arranged between the supporting sleeve and the slot.

Preferably, the limiting assembly comprises a rubber block, a limiting block and a plug post, the limiting block is arranged on the outer side of the limiting screw, the limiting block is located in the cavity, the plug post is arranged on the supporting sleeve, the rubber block is arranged at the end of the plug post, and the rubber block is located in the cavity.

Preferably, the connecting block is L-shaped structure, and one end of the connecting block is connected with the supporting sleeve through a bolt, and the other end of the connecting block is connected with the bottom plate through a bolt.

Compared with the prior art, the utility model has the beneficial effects that:

the device realizes the quick disassembly of the supporting plate and the supporting column through the stabilizing component, and solves the problems of inconvenient transportation and high replacement cost after the supporting plate is damaged in the prior integral device; the lifting mechanism consisting of the slot, the limit screw and the nut realizes the rapid adjustment of the height of the support column, and improves the construction efficiency; limiting components for preventing the limiting screw from falling off are arranged between the supporting sleeve and the slot, so that the limiting screw is prevented from falling off and losing.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present embodiment;

fig. 2 is an enlarged schematic view of the structure at B in fig. 1 according to the present embodiment;

fig. 3 is a schematic diagram of a first enlarged structure at a in fig. 1 according to the present embodiment;

fig. 4 is a second enlarged structural diagram at a in fig. 1 of the present embodiment.

In the figure: 1-a bottom plate; 2-supporting the sleeve; 3-slots; 4-supporting plates; 5-supporting columns; 6-chamber; 7-connecting blocks; 8-limiting screw rods; 9-a nut; 10-rubber blocks; 11-defining a block; 12-inserting a column; 13-bump; 14-a first collar; 15-a movable column; 16-a spring; 17-grooves; 18-defining a slot; 19-a through hole; 20-a second collar; 21-a limiting plate; 22-tie rod structure.

Detailed Description

Technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the examples of this utility model without making any inventive effort, are intended to be within the scope of this utility model.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by those skilled in the art, should fall within the scope of the present disclosure without affecting the efficacy or the achievement of the present utility model, and it should be noted that, in the present disclosure, relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The present utility model provides an embodiment: the utility model provides a drag construction temporary steel structure support of lower-bearing steel truss girder, as shown in fig. 1, including bottom plate 1, support sleeve 2, backup pad 4, support column 5, connecting block 7, the top of bottom plate 1 is through connecting block 7 fixed mounting support sleeve 2, support sleeve 2 inside is equipped with cavity 6, support column 5 is connected through elevating system with support sleeve 2, be used for the lift of support column 5 in cavity 6 to remove, and in the cavity 6 is inserted to the one end of support column 5, the other end of support column 5 stretches out cavity 6 and is connected through firm subassembly with backup pad 4, be used for the quick assembly disassembly of backup pad 4 and support column 5.

In a specific embodiment, as shown in fig. 2, the lifting mechanism includes a slot 3, a limit screw 8, a nut 9 and a plug-in post 12, a plurality of groups of slots 3 are formed on the side surface of the support post 5 along the length direction of the side surface, each group of slots 3 includes two symmetrically distributed holes, a group of symmetrically distributed through holes are formed on the upper portion of the side surface of the support sleeve 2, the nut 9 is installed in each through hole, and one end of the limit screw 8 is screwed into the slot 3 through the nut 9. Namely, when lifting operation is performed, the limit screw 8 is rotated to be separated from the nut 9, so that the limit screw 8 is separated from the slot 3, the support column 5 is lifted and moved, and when the support column is lifted to a preset position, the limit screw 8 is rotated, the limit screw 8 is screwed into the slot 3, and the support column 5 after lifting adjustment is fixed.

In a specific embodiment, as shown in fig. 3, the stabilizing component includes a bump 13, a first collar 14, a movable column 15, a spring 16, a groove 17, a limiting groove 18, a through hole 19 and a second collar 20, the top of the support column 5 is provided with the groove 17, the bottom of the support plate 4 is provided with the bump 13 inserted into the groove 17, the bump 13 and the support plate 4 are vertically installed, and the support plate 4 has a cuboid structure, so that the bump 13 and the support plate 4 can be conveniently matched. The side surface of the protruding block 13 is provided with symmetrically distributed limiting grooves 18, and the surface of the supporting column 5 is symmetrically provided with through holes 19 communicated with the grooves 17;

the movable column 15 is arranged in the through hole 19 in a sliding manner, one end of the through hole 19, which is close to the protruding block 13, is provided with a limiting baffle ring 21 for limiting the extending length of the movable column 15, the second lantern ring 20 is fixedly connected to the inner wall of the through hole 19 and is positioned at one side far away from the protruding block 13, the first lantern ring 14 is fixedly sleeved on the outer wall of the movable column 15 and is positioned at one side close to the protruding block 13, the second lantern ring 20 is movably sleeved on the outer side of the movable column 15, the spring 16 is sleeved on the outer side of the movable column 15, and two ends of the spring 16 are respectively connected with the first lantern ring 14 and the second lantern ring 20;

one end of the movable column 15, which is close to the protruding block 13, is of a hemispherical structure, the limiting groove 18 is of a spherical groove, when the movable column 15 is connected with the limiting groove 18 in a clamping mode, the center line where the through hole 19 and the limiting groove 18 are located coincides, the first lantern ring 14 abuts against the limiting stop ring 21 under the action of the spring 16, and the maximum diameter of the hemispherical structure of the movable column 15 is located outside the spherical groove.

When the support plate 4 and the support column 5 are installed, the support plate 4 is lifted, the protruding block 13 is inserted into the groove 17, the movable column 15 is extruded when the protruding block 13 is inserted, one end of the movable column 15 is in a hemispherical structure, the hemispherical surface of the movable column 15 is pressed by the protruding block 13, so that the movable column 15 is extruded and contracted along the direction of the through hole 19, and the spring 16 is driven to be compressed; when the hemispherical surface of the movable column 15 slides to the limiting groove 18 along the convex block 13, the spring 16 is reset, so that the movable column 15 is driven to be clamped in the limiting groove 18, and the support plate 4 and the support column 5 are quickly installed; when the support plate 4 and the support column 5 are required to be separated, the support plate 4 is pulled up, the hemispherical surface of the movable column 15 is driven by the force to retract the movable column 15, and the support plate 4 and the support column 5 can be quickly disassembled.

In a specific embodiment, as shown in fig. 4, in order to prevent the blocking in the assembly and disassembly of the support plate 4 and the support column 5, a pull rod structure 22 may be further disposed at the other end of the movable column 15, and the movable column 15 may move in the through hole 19 through the pull rod structure 22. When the supporting plate 4 and the supporting column 5 are installed, the pull rod 22 is pulled to drive the movable column 15 to compress the spring 16 and retract into the through hole 19, the supporting plate 4 is lifted, the convex block 13 is inserted into the groove 17, then the pull rod structure 22 is loosened, the movable column 15 stretches out of the through hole 19 under the restoring force of the spring 16, and accordingly the movable column 15 is driven to be clamped in the limiting groove 18, the supporting plate 4 and the supporting column 5 are rapidly installed, when the supporting plate 4 and the supporting column 5 are required to be separated, the movable column 15 is separated from the limiting groove 18 by pulling the pull rod structure 22, and the supporting plate 4 and the supporting column 5 can be rapidly disassembled.

In a specific embodiment, as shown in fig. 2, the slot 3 is in a U-shaped structure, the support sleeve 2 and the slot 3 are provided with limiting components, the limiting components comprise a rubber block 10, a limiting block 11 and a plug post 12, the limiting block 11 is arranged on the outer side of the limiting screw 8, the plug post 12 is arranged on the support sleeve 2, the rubber block 10 is arranged at the end part of the plug post 12, the rubber block 10 is positioned in the cavity 6, and when the limiting screw 8 rotates, the limiting block 11 is used for limiting, and the buffering of the limiting block 11 is increased under the cooperation of the rubber block 10.

In a specific embodiment, as shown in fig. 1, the connection block 7 has an L-shaped structure, one end of the connection block 7 is connected with the support sleeve 2 through a bolt, the other end of the connection block 7 is connected with the bottom plate 1 through a bolt, and stable installation of the support sleeve 2 and the bottom plate 1 is realized through the connection block 7 having an L-shaped structure.

The working principle and the using flow of the utility model are as follows: when the support plate 4 and the support column 5 are installed, the support plate 4 is lifted, the convex block 13 is inserted into the groove 17, and the movable column 15 is extruded when the convex block 13 is inserted, so that the movable column 15 is extruded and contracted along the direction of the through hole 19 and drives the spring 16 to be compressed; when the hemispherical surface of the movable column 15 slides to the limiting groove 18 along the convex block 13, the spring 16 is reset, so that the movable column 15 is driven to be clamped in the limiting groove 18, the support plate 4 and the support column 5 are rapidly installed, when the support plate 4 and the support column 5 are required to be separated, the support plate 4 is pulled up, the hemispherical surface of the movable column 15 is forced to drive the movable column 15 to retract, and the support plate 4 and the support column 5 are rapidly disassembled; when the lifting of the support column 5 in the cavity 6 is realized through the lifting mechanism, the limit screw rod 8 is rotated, the limit screw rod 8 is separated from the slot 3, the support column 5 is lifted to a required position, the limit screw rod 8 is rotated, the limit screw rod 8 is screwed into the slot 3, and the support column 5 after lifting adjustment is stabilized.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The utility model provides a drag construction temporary steel structure support of under-bearing steel truss girder which characterized in that: including bottom plate (1), support sleeve (2), backup pad (4), support column (5), connecting block (7), the top of bottom plate (1) is through connecting block (7) fixed mounting support sleeve (2), support sleeve (2) inside is equipped with cavity (6), support column (5) are connected through elevating system with support sleeve (2), be used for the lift of support column (5) in cavity (6) to remove, in cavity (6) are inserted to the one end of support column (5), the other end of support column (5) stretches out cavity (6) and is connected through firm subassembly with backup pad (4), be used for the quick assembly disassembly of backup pad (4) and support column (5).

2. The temporary steel structure support for the dragging construction of the underpinning type steel truss girder according to claim 1, wherein the temporary steel structure support is characterized in that: the lifting mechanism comprises a slot (3), a limit screw (8) and a nut (9), wherein a plurality of groups of symmetrically distributed slots (3) are formed in the side surface of the support column (5) along the length direction of the side surface, a group of symmetrically distributed through holes are formed in the upper portion of the side surface of the support sleeve (2), the nut (9) is arranged in each through hole, and one end of the limit screw (8) penetrates through the nut (9) to be screwed into the slot (3) so as to position the support column (5).

3. The temporary steel structure support for the dragging construction of the underpinning type steel truss girder according to claim 1, wherein the temporary steel structure support is characterized in that: the stabilizing assembly comprises a protruding block (13), a first lantern ring (14), a movable column (15), a spring (16), a groove (17), limiting grooves (18), through holes (19) and a second lantern ring (20), wherein the groove (17) is formed in the top of the supporting column (5), the protruding block (13) used for being inserted into the groove (17) is arranged at the bottom of the supporting plate (4), a group of limiting grooves (18) which are symmetrically distributed are formed in the side surface of the protruding block (13), and a group of through holes (19) which are communicated with the groove (17) are symmetrically formed in the surface of the supporting column (5);

the movable column (15) is arranged in the through hole (19) in a sliding manner, one end, close to the protruding block (13), of the through hole (19) is provided with a limiting baffle ring (21) used for limiting the extending length of the movable column (15), the second lantern ring (20) is fixedly connected to the inner wall of the through hole (19) and located at one side far away from the protruding block (13), the first lantern ring (14) is fixedly sleeved on the outer wall of the movable column (15) and located at one side close to the protruding block (13), the second lantern ring (20) is movably sleeved on the outer side of the movable column (15), the spring (16) is sleeved on the outer side of the movable column (15), and two ends of the spring (16) are connected with the first lantern ring (14) and the second lantern ring (20) respectively;

one end of the movable column (15) close to the protruding block (13) is of a hemispherical structure, the limiting groove (18) is a spherical groove, and when the movable column (15) is in clamping connection with the limiting groove (18), the first lantern ring (14) is abutted to the limiting baffle ring (21) under the action of the spring (16), and the maximum diameter of the hemispherical structure of the movable column (15) is located outside the spherical groove.

4. A temporary steel structure support for the pull construction of a underpinning type steel truss girder according to claim 3, wherein: one end of the movable column (15) far away from the lug (13) is provided with a pull rod structure (22), and the movable column (15) can move in the through hole (19) through the pull rod structure (22).

5. The temporary steel structure support for the dragging construction of the underpinning type steel truss girder as claimed in claim 2, wherein: a limiting component for preventing the limiting screw rod (8) from falling off is arranged between the supporting sleeve (2) and the slot (3).

6. The temporary steel structure support for the dragging construction of the underpinning type steel truss girder as claimed in claim 5, wherein: the limiting assembly comprises a rubber block (10), a limiting block (11) and a plug-in column (12), the limiting block (11) is arranged on the outer side of the limiting screw (8), the limiting block (11) is located in the cavity (6), the plug-in column (12) is arranged on the supporting sleeve (2), the rubber block (10) is arranged at the end of the plug-in column (12), and the rubber block (10) is located in the cavity (6).

7. A temporary steel structure support for the pull construction of a underpinning type steel truss girder according to claim 3, wherein: the connecting block (7) is of an L-shaped structure, one end of the connecting block (7) is connected with the supporting sleeve (2) through a bolt, and the other end of the connecting block (7) is connected with the bottom plate (1) through a bolt.