Connecting joint of foldable emergency bridge

Abstract

The utility model discloses a connector of a foldable emergency bridge, which is used for connecting a bridge section main truss and a bridge deck system and comprises a bridge deck system connector, a connector with a sliding groove and a locking piece. The joint with the sliding chute is fixedly connected with the bridge section main truss; one side of the bridge deck system connector is fixedly connected with a bridge deck system, the upper portion of the other side of the bridge deck system connector is in sliding fit with a sliding groove in the connector with the sliding groove, the sliding groove is formed in the length direction of the connector with the sliding groove, and the lower portion of the other side of the bridge deck system connector is fixedly connected with the connector with the sliding groove overturned in place through a locking piece. According to the utility model, the erection speed can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway emergency disposal, and particularly relates to a connecting joint of a foldable emergency bridge. Background Art

[0002] Currently, most of the widely used modular emergency bridges have independent designs for the main truss and the bridge deck system, and the main truss and the bridge deck system are connected by connecting pieces during actual assembly and erection. There are many types of connecting pieces, the connection operation is relatively complicated, the manual labor intensity is high, and the assembly speed is slow. In order to realize the modular design of the emergency bridge, reduce the space size required during the storage and transportation of the bridge, and at the same time improve the erection speed during the assembly and erection process and reduce the labor intensity of personnel, a connecting joint for the main truss and the bridge deck system needs to be designed. Content of the Utility Model

[0003] In view of this, the utility model provides a connecting joint of a foldable emergency bridge, which can improve the erection speed.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A connecting joint of a foldable emergency bridge is used to connect the main truss of a bridge section and the bridge deck system. The connecting joint includes a bridge deck system joint, a joint with a chute, and a locking member;

[0006] The joint with a chute is fixedly connected to the main truss of the bridge section; one side of the bridge deck system joint is fixedly connected to the bridge deck system, and the upper part of the other side is slidably matched with the chute on the joint with a chute. The chute is arranged along the length direction of the joint with a chute, and the lower part of the other side of the bridge deck system joint is fixedly connected to the joint with a chute in the flipped-in place through a locking member.

[0007] Further, the locking member is a fixed connecting pin, which is installed in the corresponding mounting holes of the bridge deck system joint and the joint with a chute.

[0008] Further, the bridge deck system joint is a single-ear joint, and the joint with a chute is a double-ear joint.

[0009] Further, the upper part of the other side of the bridge deck system joint is slidably matched with the chute through a connecting bolt pin.

[0010] Further, bosses are provided at the through holes for installing the connecting bolt pins on the other side of the bridge deck system joint and at the mounting holes of the bridge deck system joint, and the bosses are symmetrically arranged along both sides of the bridge deck system joint.

[0011] Further, the bridge deck system joint is clamped at the upper and lower ends of the butt joint end face of the bridge deck system.

[0012] Advantageous Effects:

[0013] 1. The utility model connects the main truss of the bridge section with the bridge deck system through a connecting joint, which can realize the folding of the main truss of the bridge section relative to the bridge deck system and the sliding recovery of the main truss during erection and removal, improve the erection speed, and not only meet the requirements of the joint bearing capacity, but also ensure the smooth folding and sliding of the main truss of the bridge section relative to the bridge deck system during erection and removal.

[0014] 2. The locking piece of the utility model has a simple structure and is convenient to use.

[0015] 3. The utility model is provided with bosses at the through holes and mounting holes of the bridge deck system joint, that is, the bridge deck system joint contacts the joint with a chute through the bosses, which can reduce the contact area between the bridge deck system joint and the joint with a chute and reduce the friction force when the main truss of the bridge section flips.

[0016] 4. The utility model defines the relative position relationship between the connecting bolt pin and the chute in the retracted and erected states, which can minimize the length of the main truss of the bridge section extending outwards when folded on the upper surface of the bridge deck system and reduce the space required for equipment storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the composition structure of the connecting joint of the utility model.

[0018] Figure 2 It is a schematic diagram after the connecting joint of the utility model is connected and in place.

[0019] Figure 3 It is a schematic diagram of the connection state of the utility model when the foldable emergency bridge is retracted.

[0020] Figure 4 It is a schematic diagram of the connection state of the utility model when the foldable emergency bridge is erected.

[0021] Figures 5 to 9 Schematic diagram of the implementation process of the connection and erection of the foldable emergency bridge.

[0022] Among them, 1 - bridge deck system joint, 2 - connection pin hole Ⅰ, 3 - connecting bolt pin, 4 - chute, 5 - joint with a chute, 6 - connection pin hole Ⅲ, 7 - fixed connection pin, 8 - connection pin hole Ⅱ, 9 - boss, 10 - main truss of the bridge section, 11 - bridge deck system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following are specific embodiments in conjunction with the drawings to describe the utility model in detail.

[0024] The utility model provides a connecting joint for a foldable emergency bridge, which is used to connect the main truss 10 of the bridge section and the bridge deck system 11. As Figure 1 shown, the connecting joint includes a bridge deck system joint 1, a joint with a chute 5 and a locking piece.

[0025] The chute joint 5 is fixedly connected to the main truss 10 of the bridge section; one side of the bridge deck system joint 1 is fixedly connected to the bridge deck system 11, and the upper part of the other side is in sliding fit with the chute 4 on the chute joint 5. The chute 4 is arranged along the length direction of the chute joint 5. The lower part of the other side of the bridge deck system joint 1 is fixedly connected to the chute joint 5 in the flipped - in place state through a locking member.

[0026] Specifically, as Figures 2 to 4 shown, in this embodiment, the bridge deck system joint 1 is a single - ear joint, and the chute joint 5 is a double - ear joint.

[0027] The upper part of the other side of the bridge deck system joint 1 is in sliding fit with the chute 4 through the connecting bolt pin 3. The upper part of the other side of the bridge deck system joint 1 is provided with a connecting pin hole Ⅰ2 for fixing the connecting bolt pin 3. The connecting bolt pin 3 passes through the connecting pin hole Ⅰ2 and is fixedly connected to the chute 4 to connect the bridge deck system joint 1 and the chute joint 5, completing the connection between the main truss 10 of the bridge section and the bridge deck system 11.

[0028] The locking member is a fixed connecting pin 7. The lower part of the other side of the bridge deck system joint 1 is provided with a connecting pin hole Ⅱ8, and the lower side of the chute joint 5 is provided with a connecting pin hole Ⅲ6 for installing the fixed connecting pin 7. The fixed connecting pin 7 passes through the connecting pin hole Ⅱ8 and the connecting pin hole Ⅲ6 to fixedly connect the bridge deck system joint 1 and the chute joint 5, completing the fixed connection between the main truss 10 of the bridge section and the bridge deck system 11.

[0029] As an improvement, bosses 9 are provided at both the connecting pin hole Ⅰ2 and the connecting pin hole Ⅱ8, and the bosses 9 are symmetrically arranged along both sides of the bridge deck system joint 1.

[0030] As a further improvement, the bridge deck system joint 1 is clamped at the upper and lower ends of the butting end face of the bridge deck system 11, and their profiles match, thereby increasing the weld length between the bridge deck system joint 1 and the bridge deck system 11 and improving the connection strength. In this embodiment, the butting surface between the bridge deck system joint 1 and the bridge deck system 11 is C - shaped.

[0031] When the foldable emergency bridge is erected using the above - mentioned connection joints, the main truss 10 of the bridge section and the bridge deck system 11 are connected by multiple groups of the above - mentioned connection joints. As Figures 5 to 9 shown, when the foldable emergency bridge is retracted, the main truss 10 of the bridge section is folded on the upper surface of the bridge deck system 11 and they are parallel; at this time, the foldable emergency bridge is in the folded state, which is convenient for transportation, and the connecting bolt pin 3 is located at the lowermost end of the chute 4.

[0032] When the collapsible emergency bridge is erected, it unfolds from the folded state. The main truss 10 of the sliding bridge section slides relative to the double-ear joint 5 with a chute in the chute 4, and the connecting bolt pin 3 slides. After sliding in place, at this time, the connecting bolt pin 3 is located at the uppermost end of the chute 4. Then, the main truss 10 of the bridge section is flipped, and the main truss 10 of the bridge section rotates relative to the bridge deck system 11 around the connecting bolt pin 3 until the main truss 10 of the bridge section is perpendicular to the bridge deck system 11. The fixed connection pin 7 passes through the connection pin hole II 8 on the bridge deck system joint 1 and the corresponding connection pin hole III 6 on the joint 5 with a chute to complete the fixation.

[0033] In summary, the above is only the preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, 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 connecting joint of a foldable emergency bridge, characterized in that, It is used to connect the main truss of the bridge joint and the bridge deck system. The connecting joint includes a bridge deck system joint, a joint with a chute, and a locking member; The joint with a chute is fixedly connected to the main truss of the bridge joint; one side of the bridge deck system joint is fixedly connected to the bridge deck system, and the upper part of the other side is in sliding fit with the chute on the joint with a chute. The chute is arranged along the length direction of the joint with a chute. The lower part of the other side of the bridge deck system joint is fixedly connected to the joint with a chute that has been flipped in place through a locking member.

2. The connecting joint of the foldable emergency bridge according to claim 1, characterized in that, The locking member is a fixed connecting pin and is installed in the corresponding installation holes of the bridge deck system joint and the joint with a chute.

3. The connecting joint of the collapsible emergency bridge according to claim 1, characterized in that, The bridge deck system joint is a single-ear joint, and the joint with a chute is a double-ear joint.

4. The connecting joint of the collapsible emergency bridge according to claim 2, characterized in that, The upper part of the other side of the bridge deck system joint is in sliding fit with the chute through a connecting bolt pin.

5. The connection joint of the foldable emergency bridge according to claim 4, characterized in that, There are bosses at the through-hole for installing the connecting bolt pin on the other side of the bridge deck system joint and at the installation hole of the bridge deck system joint, and the bosses are symmetrically arranged along both sides of the bridge deck system joint.

6. The connecting joint of the collapsible emergency bridge according to any one of claims 1-5, characterized in that, The bridge deck system joint is clamped at the upper and lower ends of the butt joint end face of the bridge deck system.

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