Combined installation type steel truss bridge

Abstract

The utility model provides a combined installation type steel truss bridge which comprises frames, supporting frames are connected to the inner sides of the frames in a threaded mode, transverse rods are arranged on the front sides and the rear sides of the two frames, installation plates are welded to the tops of the two transverse rods, inserting holes are formed in the upper sides and the lower sides of the left sides and the right sides of the two transverse rods, and the supporting frames are connected to the supporting frames in a threaded mode. Clamping grooves are formed in the left sides and the right sides of the two transverse rods correspondingly, mounting mechanisms are arranged on the outer sides of the two frames correspondingly, each mounting mechanism comprises a mounting frame, the four mounting frames are fixedly mounted on the outer sides of the two frames correspondingly, and by arranging the mounting mechanisms, fixing work of the transverse rods is completed; due to the fact that the transverse rods, the frame and the supporting frame can be detached, when the parts are transported, transportation work can be independently carried out, carrying is convenient, meanwhile, the situation that follow-up installation work is affected due to the fact that the overall weight is high is reduced, and manpower and material resources in the installation process are reduced.

Description

Technical Field

[0001] The utility model relates to a combined and installed steel truss bridge, belonging to the technical field of steel truss bridges. Background Art

[0002] Steel truss bridges have the advantages of low beam height, light self-weight, large load-bearing capacity, smooth and comfortable walking, and short construction period, and are widely used in the field of bridges. For bridges using a through-type steel truss as the load-bearing structure, the cross-section of the steel truss is rectangular, and the bridge deck is located at the bottom of the steel truss. Therefore, the bottom of the truss is the main stress member.

[0003] Chinese Patent Publication (Publication No.: CN 218932836 U) discloses a combined through-type steel truss bridge, including a lower frame, an upper frame, vertical trusses, diagonal trusses, reinforcing bars, longitudinal beams and cross beams; the upper part of the lower frame is connected to the upper frame through diagonal trusses, and multiple diagonal trusses are connected between the lower frame and the upper frame. A reinforcing bar is fixedly arranged in the center of the upper frame, a longitudinal beam is fixedly arranged in the center of the lower frame, multiple cross beams are fixedly arranged on the inner side of the lower frame, embedding boxes are embedded on both sides of the left end of the lower frame and the upper frame, and embedding rods are fixedly arranged on the inner and outer sides of the right end of the lower frame and the upper frame; by providing the embedding boxes and embedding rods, when two steel truss bridges need to be combined, the embedding rods on one steel truss bridge are embedded into the embedding boxes on the other steel truss bridge, achieving the effect of assembling and connecting between the steel truss bridges, without the need to install the steel truss bridges on site, shortening the installation time and increasing the work efficiency;

[0004] However, the truss in the above device is integral, and the installation between the lower frame, the upper frame, the vertical trusses, the diagonal trusses, the reinforcing bars, the longitudinal beams and the cross beams is fixed, making the overall volume of the truss larger, and since the material of the truss is a rigid material, making the overall weight of the truss heavier. Therefore, more manpower and material resources are required for its transportation or installation, and the consumption during transportation or installation is relatively large, resulting in higher costs for transportation and installation and being relatively inconvenient to use.

[0005] Therefore, a combined and installed steel truss bridge is proposed. Summary of the Utility Model

[0006] In view of this, the utility model provides a combined and installed steel truss bridge to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0007] The technical solution of the utility model is realized as follows: A combined and installed steel truss bridge, including a frame, wherein a support frame is threadedly connected to the inner side of the frame, cross bars are arranged on the front and rear sides of the two frames, mounting plates are welded to the tops of the two cross bars, insertion holes are formed in the upper and lower sides of the left and right sides of the two cross bars, and clamping grooves are formed in the left and right sides of the two cross bars;

[0008] Mounting mechanisms are arranged on the outer sides of the two frames. The mounting mechanism includes mounting frames. The four mounting frames are fixedly installed on the outer sides of the two frames. Rotary disks are movably connected to the tops of the four mounting frames. Bidirectional threaded rods are fixedly installed at the bottoms of the four rotary disks. Threaded blocks are threadedly connected to the upper and lower sides of the surfaces of the four bidirectional threaded rods. Sliding plates are fixedly installed on the inner sides of the eight threaded blocks. Insert blocks are fixedly installed on the inner sides of the eight sliding plates. Connecting plates are fixedly installed on the inner sides of the eight sliding plates. Fixing bolts are threadedly connected to the surfaces of the eight connecting plates.

[0009] Further preferably, screw grooves are formed in the upper and lower sides of the left and right sides of the two cross bars, and the eight fixing bolts are threadedly connected to the inner cavities of the eight screw grooves.

[0010] Further preferably, moving grooves are formed in the upper and lower sides of the inner sides of the four mounting frames, and the eight connecting plates penetrate through the inner cavities of the eight moving grooves and extend to the inner sides of the four mounting frames.

[0011] Further preferably, sliding grooves are formed in the left and right sides of the inner cavities of the four mounting frames, and the outer sides of the eight sliding plates are slidably connected to the inner cavities of the sliding grooves.

[0012] Further preferably, limiting grooves are formed in the upper and lower sides of the outer sides of the four mounting frames, and the eight threaded blocks penetrate through the inner cavities of the eight limiting grooves and extend to the inner cavities of the mounting frames.

[0013] Further preferably, slot holes are formed in the inner sides of the four mounting frames, and the insert blocks penetrate through the inner cavities of the slot holes and extend to the inner cavities of the insertion holes.

[0014] Further preferably, clamping blocks are fixedly installed on the inner sides of the four mounting frames, and the clamping blocks are clamped in the inner cavities of the clamping grooves.

[0015] Further preferably, the insertion holes and the slot holes are in the same vertical direction and are communicated with each other.

[0016] Due to the adoption of the above technical solutions in the embodiments of the utility model, the following advantages are achieved:

[0017] 1. The utility model is provided with an installation mechanism. First, grasp the turntable and rotate it. As the turntable rotates, the turntable drives the bidirectional threaded rod to rotate. At this time, due to the rotation of the bidirectional threaded rod, the screw block moves inward. Through the movement of the screw block, the screw block drives the slide plate to move inward. At this time, the insertion block and the connecting plate move inward due to the movement of the slide plate. The insertion block is inserted into the inner cavity of the jack. Subsequently, rotate the fixing bolt and thread the fixing bolt into the inner cavity of the screw groove to complete the fixing work of the cross bar. Since the cross bar, the frame, and the support frame can all be disassembled, when transporting these components, they can be transported separately. This not only facilitates handling but also reduces the impact on subsequent installation work due to the high overall weight, and reduces the manpower and material resources during installation.

[0018] 2. The utility model is provided with a screw groove, which can facilitate the threaded connection of the fixing bolt to the cross bar, thereby improving the stability during the installation of the cross bar. By providing a moving groove, the movement of the connecting plate can be limited to prevent the connecting plate from shifting during movement, which may affect the fixing effect of the cross bar. By providing a sliding groove, the movement of the slide plate can be limited to prevent the sliding groove from shifting during movement, which may affect the fixing effect of the cross bar. By providing a limiting groove, the movement of the screw block can be limited to prevent the bidirectional threaded rod from driving the screw block to rotate synchronously during rotation, which may affect the normal movement of the screw block. By providing a slot, the movement of the insertion block can be limited to prevent the insertion block from shifting during movement, which may affect the fixing effect of the cross bar. By providing a clamping block, the jack and the slot can be in the same vertical direction, facilitating the fixing work of the cross bar by the insertion block. By providing the jack and the slot, since the two are interconnected and in the same vertical direction, it is convenient for the normal movement of the insertion block and facilitates the fixing work of the cross bar by the insertion block.

[0019] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic front three-dimensional structure diagram of the present utility model;

[0022] Figure 2 Schematic diagram of the disassembly structure of the mounting plate of the present utility model;

[0023] Figure 3 Schematic diagram of the disassembly structure of the cross bar of the present utility model;

[0024] Figure 4 Schematic diagram of the installation mechanism structure of the present utility model;

[0025] Figure 5 For the present utility model Figure 4 Schematic diagram of the enlarged structure at position A.

[0026] Reference numerals: 1, frame; 2, installation mechanism; 201, installation frame; 202, turntable; 203, bidirectional threaded rod; 204, screw block; 205, sliding plate; 206, insertion block; 207, connecting plate; 208, fixing bolt; 209, moving groove; 210, sliding groove; 211, limiting groove; 212, insertion slot; 213, clamping block; 3, support frame; 4, cross bar; 5, mounting plate; 6, card slot; 7, jack; 8, screw groove. Detailed implementation manners

[0027] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0028] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0029] Embodiment 1

[0030] As Figures 1-5 shown, the embodiment of the present utility model provides a combined installation type steel truss bridge, including a frame 1, a support frame 3 is threadedly connected to the inner side of the frame 1, cross bars 4 are arranged on the front and rear sides of the two frames 1, a mounting plate 5 is welded to the tops of the two cross bars 4, jacks 7 are opened on the upper and lower sides of the left and right sides of the two cross bars 4, and card slots 6 are opened on the left and right sides of the two cross bars 4;

[0031] Installation mechanisms 2 are provided on the outer sides of both frames 1. The installation mechanism 2 includes an installation frame 201. The four installation frames 201 are all fixedly installed on the outer sides of the two frames 1. Rotary disks 202 are movably connected to the tops of the four installation frames 201. Bidirectional threaded rods 203 are fixedly installed at the bottoms of the four rotary disks 202. Upper and lower sides of the surfaces of the four bidirectional threaded rods 203 are both threadedly connected with screw blocks 204. Slide plates 205 are fixedly installed on the inner sides of the eight screw blocks 204. Plug blocks 206 are fixedly installed on the inner sides of the eight slide plates 205. Connecting plates 207 are fixedly installed on the inner sides of the eight slide plates 205. Fixing bolts 208 are threadedly connected to the surfaces of the eight connecting plates 207.

[0032] By providing the installation mechanism 2, first grasp and rotate the rotary disk 202. As the rotary disk 202 rotates, the rotary disk 202 drives the bidirectional threaded rod 203 to rotate. At this time, due to the rotation of the bidirectional threaded rod 203, the screw block 204 moves inward. Through the movement of the screw block 204, the screw block 204 drives the slide plate 205 to move inward. At this time, the plug block 206 and the connecting plate 207 move inward due to the movement of the slide plate 205. The plug block 206 is inserted into the inner cavity of the jack 7. Subsequently, by rotating the fixing bolt 208 and threading the fixing bolt 208 into the inner cavity of the screw groove 8, the fixing work of the cross bar 4 is completed. Since the cross bar 4, the frame 1, and the support frame 3 can all be disassembled, when transporting these components, they can be transported separately. While facilitating handling, it also reduces the impact on subsequent installation work due to the high overall weight, and reduces the manpower and material resources during installation.

[0033] Embodiment 2

[0034] In one embodiment, screw grooves 8 are provided on the upper and lower sides of the left and right sides of the two cross bars 4. The eight fixing bolts 208 are all threadedly connected to the inner cavities of the eight screw grooves 8. Movement grooves 209 are provided on the upper and lower sides of the inner sides of the four installation frames 201. The eight connecting plates 207 all penetrate through the inner cavities of the eight movement grooves 209 and extend to the inner sides of the four installation frames 201. Chute grooves 210 are provided on the left and right sides of the inner cavities of the four installation frames 201. The outer sides of the eight slide plates 205 are all slidably connected to the inner cavities of the chute grooves 210. Limit grooves 211 are provided on the upper and lower sides of the outer sides of the four installation frames 201. The eight screw blocks 204 all penetrate through the inner cavities of the eight limit grooves 211 and extend into the inner cavities of the installation frames 201. Slot holes 212 are provided on the inner sides of the four installation frames 201. The plug block 206 penetrates through the inner cavity of the slot hole 212 and extends into the inner cavity of the jack 7. Clamping blocks 213 are fixedly installed on the inner sides of the four installation frames 201. The clamping blocks 213 are clamped in the inner cavity of the clamping groove 6. The jack 7 and the slot hole 212 are in the same vertical direction, and the jack 7 and the slot hole 212 communicate with each other.

[0035] By providing the spiral groove 8, it is convenient to threadedly connect the fixing bolt 208 to the cross bar 4, thereby improving the stability during the installation of the cross bar 4. By providing the moving groove 209, the movement of the connecting plate 207 can be limited, preventing the connecting plate 207 from shifting during movement and thus affecting the fixing effect on the cross bar 4. By providing the sliding groove 210, the movement of the sliding plate 205 can be limited, preventing the sliding groove 210 from shifting during movement and then affecting the fixing effect on the cross bar 4. By providing the limiting groove 211, the movement of the screw block 204 can be limited, preventing the two-way threaded rod 203 from driving the screw block 204 to rotate synchronously when rotating, thus affecting the normal movement of the screw block 204. By providing the inserting slot 212, the movement of the inserting block 206 can be limited, preventing the inserting block 206 from shifting during movement and resulting in affecting the fixing effect on the cross bar 4. By providing the clamping block 213, the jack 7 and the inserting slot 212 can be in the same vertical direction, facilitating the fixing of the cross bar 4 by the inserting block 206. By providing the jack 7 and the inserting slot 212, since the two are interconnected and in the same vertical direction, the normal movement of the inserting block 206 can be facilitated, and it is convenient for the inserting block 206 to fix the cross bar 4.

[0036] When the present utility model is in operation: After the support frame 3 is installed inside the frame 1 by threading, the cross bar 4 is placed inside the mounting frame 201. Subsequently, the turntable 202 is grasped and rotated. As the turntable 202 rotates, the turntable 202 drives the two-way threaded rod 203 to rotate. At this time, due to the rotation of the two-way threaded rod 203, the screw block 204 moves inward. Through the movement of the screw block 204, the screw block 204 drives the sliding plate 205 to move inward. At this time, the inserting block 206 and the connecting plate 207 move inward due to the movement of the sliding plate 205. The inserting block 206 is inserted into the inner cavity of the jack 7. Subsequently, the fixing bolt 208 is rotated and the fixing bolt 208 is threadedly connected to the inner cavity of the spiral groove 8 to complete the fixing of the cross bar 4 and complete the assembly of the truss.

[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A combined installation steel truss bridge, characterized in that: It comprises a frame (1), the inner side of the frame (1) is threadedly connected to a support frame (3), the front and rear sides of the two frames (1) are each provided with a cross bar (4), the tops of the two cross bars (4) are welded with a mounting plate (5), the upper and lower sides of the left and right sides of the two cross bars (4) are each provided with a socket (7), and the left and right sides of the two cross bars (4) are each provided with a card slot (6); The outer sides of the two frames (1) are each provided with a mounting mechanism (2), the mounting mechanism (2) comprising a mounting frame (201), the four mounting frames (201) being fixedly mounted on the outer sides of the two frames (1), the tops of the four mounting frames (201) being movably connected with a turntable (202), the bottoms of the four turntables (202) being fixedly mounted with a bidirectional threaded rod (203), the upper and lower sides of the surfaces of the four bidirectional threaded rods (203) being threadedly connected with screw blocks (204), the inner sides of the eight screw blocks (204) being fixedly mounted with a slide plate (205), the inner sides of the eight slide plates (205) being fixedly mounted with an insert block (206), the inner sides of the eight slide plates (205) being fixedly mounted with a connecting plate (207), and the surfaces of the eight connecting plates (207) being threadedly connected with fixing bolts (208).

2. The combined installation steel truss bridge according to claim 1, characterized in that: Screw grooves (8) are provided on the upper and lower sides of the left and right sides of the two cross bars (4), and the eight fixing bolts (208) are threadedly connected in the inner cavities of the eight screw grooves (8).

3. The combined installation type steel truss bridge according to claim 1, characterized in that: The upper and lower sides of the inner sides of the four installation frames (201) are provided with movable grooves (209), and the eight connecting plates (207) penetrate the inner cavities of the eight movable grooves (209) and extend to the inner sides of the four installation frames (201).

4. The combined installation type steel truss bridge according to claim 1, characterized in that: Slide grooves (210) are provided on both left and right sides of the inner cavities of the four installation frames (201), and the outer sides of the eight slide plates (205) are slidably connected to the inner cavities of the slide grooves (210).

5. The combined installation type steel truss bridge according to claim 1, characterized in that: Limiting grooves (211) are provided on both upper and lower sides of the outer sides of the four installation frames (201), and the eight screw blocks (204) penetrate the inner cavities of the eight limiting grooves (211) and extend into the inner cavity of the installation frame (201).

6. The combined installation type steel truss bridge according to claim 1, characterized in that: The inner sides of the four installation frames (201) are each provided with a slot (212), and the insert block (206) passes through the inner cavity of the slot (212) and extends into the inner cavity of the insertion hole (7).

7. The combined installation type steel truss bridge according to claim 1, characterized in that: A clamping block (213) is fixedly mounted on the inner side of each of the four installation frames (201), and the clamping block (213) is clamped in the inner cavity of the clamping slot (6).

8. The combined installation type steel truss bridge according to claim 6, characterized in that: The plug hole (7) and the slot (212) are in the same vertical direction, and the plug hole (7) and the slot (212) are connected to each other.

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