Turnover folding ladder type bridge

Abstract

The utility model relates to a ladder type bridge, in particular to a turnover folding ladder type bridge, which comprises a lower bridge, an upper bridge is rotatably arranged on the lower bridge, a turnover mechanism is arranged between the lower bridge and the upper bridge, and locking mechanisms are further arranged at the bottoms of the lower bridge and the upper bridge. The turnover mechanism and the locking mechanism are matched with each other, the turnover mechanism is used for rotating the upper bridge frame to enable the upper bridge frame to be extended or folded, and the locking mechanism is used for locking the upper bridge frame and the lower bridge frame to prevent the lower bridge frame and the upper bridge frame from sinking under the action of the gravity of a cable. The upper bridge frame and the lower bridge frame can be overturned, folded and extended, so that the bridge frame can be overturned, folded and locked, when transportation is needed, the longer bridge frame can be folded firstly, the transportation space can be saved, rapid installation can be achieved, the upper bridge frame and the lower bridge frame can be locked through the locking mechanism, and the bridge frame is convenient to use. And the upper bridge and the lower bridge are prevented from sinking under the action of the gravity of the cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ladder type bridge, specifically is a turnover folding ladder type bridge. BACKGROUND

[0002] The ladder type cable bridge is both a ladder type cable bridge, that is, a carrier for laying and assuming cables, and is usually composed of side plates and a plurality of crosspieces to form a ladder-shaped structure with certain rigidity and strength. This structure not only improves the overall bending resistance, but also enhances the load capacity. The side plates and the bottom plate of the ladder type cable bridge are usually drawn and formed by a forming machine to ensure their aesthetic appearance and durability. In addition, the ladder type cable bridge has the characteristics of light weight, low cost, beautiful appearance, easy installation, good ventilation, etc.

[0003] The ladder type cable bridge is relatively long, and when it needs to be transported, there is a limitation of limited transportation space. In addition, the turnover folding ladder type cable bridge also has problems such as locking when being turned over and assumed. Since the cable itself is heavy, when the cable is laid on the surface of the bridge, the cable itself will be pressed downward due to its own gravity, thereby causing instability of the turned-over bridge.

[0004] In summary, the ladder type cable bridge has certain limitations when being turned over and folded. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a turnover folding ladder type bridge to solve the limitation problem in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A turnover folding ladder type bridge, comprising a lower bridge, wherein the lower bridge is provided with an upper bridge rotatingly, a turnover mechanism is arranged between the lower bridge and the upper bridge, and a locking mechanism is further arranged at the bottom of the lower bridge and the upper bridge.

[0008] The turnover mechanism and the locking mechanism cooperate with each other, the turnover mechanism is used for rotating the upper bridge to extend or fold the upper bridge, and the locking mechanism is used for locking the upper bridge and the lower bridge to prevent the lower bridge and the upper bridge from sinking under the action of the gravity of the cable.

[0009] The turnover folding ladder type bridge as described above: the turnover mechanism comprises a first support, a second support and a rotating shaft, the first support is arranged on the lower bridge, the second support is arranged on the upper bridge, and the first support and the second support are both arranged in a symmetrical manner.

[0010] The turnover folding ladder type bridge frame as described above: the rotating shaft is arranged on the first support and the second support, the upper bridge frame rotates around the axis of the rotating shaft through the second support, and the first support and the second support are connected through the rotating shaft.

[0011] The turnover folding ladder type bridge frame as described above: the locking mechanism comprises clamping plates, the clamping plates are arranged in a group, and the clamping plates in the group are arranged on one side of the upper bridge frame and rotate around the axis of the rotating shaft.

[0012] The turnover folding ladder type bridge frame as described above: the locking mechanism further comprises a sleeve, a telescopic rod and a spring, the sleeve is arranged at the bottom of the lower bridge frame, the telescopic rod is slidingly arranged in the sleeve, one end of the telescopic rod in the sleeve is provided with a convex ring, the spring is arranged in the sleeve, one end of the spring is in abutment with the convex ring of the telescopic rod, and the other end of the spring is in abutment with the inner wall of the sleeve.

[0013] The turnover folding ladder type bridge frame as described above: the locking mechanism further comprises a bolt rod, the bolt rod is rotationally connected with one end of the telescopic rod, and the bolt rod is clamped with the clamping plate when being locked.

[0014] Compared with the prior art, the turnover folding ladder type bridge frame has the beneficial effects that: the upper bridge frame can be folded and extended with the lower bridge frame, so that the bridge frame can be folded and locked, the longer bridge frame can be folded when transportation is needed, so that transportation space is saved, and the bridge frame can be turned over when installation is needed, so that installation can be quickly completed.

[0015] The locking mechanism is arranged at the bottom of the bridge frame, the upper bridge frame and the lower bridge frame can be locked through the locking mechanism after the upper bridge frame and the lower bridge frame are arranged side by side, and the upper bridge frame and the lower bridge frame are prevented from sinking downward under the action of the gravity of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the turnover folding ladder type bridge frame.

[0017] Figure 2 It is a structure schematic view of the upper bridge frame in the turnover folding ladder type bridge frame in a turnover process.

[0018] Figure 3 It is a structure schematic view of the clamping plate extruding the bolt rod in the turnover folding ladder type bridge frame.

[0019] Figure 4 It is an enlarged structure schematic view of the connection between the clamping plate and the bolt rod in the turnover folding ladder type bridge frame.

[0020] Figure 5 It is a structure schematic view of the spring being separated from the sleeve in the turnover folding ladder type bridge frame.

[0021] In the figure: 1, the lower bridge frame; 2, the upper bridge frame; 3, the first support; 4, the second support; 5, the rotating shaft; 6, the clamping plate; 7, the sleeve; 8, the telescopic rod; 9, the bolt rod; 10, the spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-5 As an embodiment of the utility model, the turnover folding ladder type bridge frame comprises a lower bridge frame 1, the upper bridge frame 2 is rotationally arranged on the lower bridge frame 1, a turnover mechanism is arranged between the lower bridge frame 1 and the upper bridge frame 2, and a locking mechanism is further arranged at the bottom of the lower bridge frame 1 and the upper bridge frame 2.

[0024] The turnover mechanism and the locking mechanism cooperate with each other, the turnover mechanism is used for rotating the upper bridge frame 2 to make the upper bridge frame 2 extend or fold, and the locking mechanism is used for locking the upper bridge frame 2 and the lower bridge frame 1 to prevent the lower bridge frame 1 and the upper bridge frame 2 from sinking under the action of the gravity of the cable.

[0025] In the embodiment, in order to facilitate transportation, the upper bridge frame 2 is folded on the upper surface of the lower bridge frame 1 at the beginning, so that half of the length space is saved, when extension installation is needed, the upper bridge frame 2 can be turned over from the surface of the lower bridge frame 1 through the turnover mechanism, and after turnover is completed, the upper bridge frame 2 and the lower bridge frame 1 can be locked through the locking mechanism, so that the weight of the cable prevents the upper bridge frame 2 and the lower bridge frame 1 from being bent, thereby enabling the whole bridge frame structure to stably operate.

[0026] As a further scheme of the utility model, the turnover mechanism comprises a first support 3, a second support 4 and a rotating shaft 5, the first support 3 is arranged on the lower bridge frame 1, the second support 4 is arranged on the upper bridge frame 2, and the first support 3 and the second support 4 are both arranged in a symmetrical manner.

[0027] In the embodiment, the turnover is realized through the structure of the first support 3 arranged on the lower bridge frame 1 and the second support 4 arranged on the upper bridge frame 2, and the first support 3 and the second support 4 are both symmetrically arranged on the upper bridge frame 2 and the lower bridge frame 1.

[0028] As a further scheme of the utility model, the rotating shaft 5 is rotationally arranged on the first support 3 and the second support 4, the upper bridge frame 2 rotates around the axis of the rotating shaft 5 through the second support 4, and the first support 3 and the second support 4 are rotationally connected through the rotating shaft 5.

[0029] In this embodiment, a rotating shaft 5 is installed between the first bracket 3 and the second bracket 4, and the upper bridge 2 is rotated around the axis of the rotating shaft 5 by means of the second bracket 4.

[0030] As a further embodiment of this utility model, the locking mechanism includes a locking plate 6, which is configured as a set. The set of locking plates 6 is disposed on one side of the upper bridge frame 2, and the locking plates 6 also rotate around the axis of the rotating shaft 5.

[0031] In this embodiment, when locking is required, the upper bridge 2 and the card plate 6 are initially positioned around the axis of the rotating shaft 5, so that all the structures on the card plate 6 will rotate around the axis of the rotating shaft 5.

[0032] As a further embodiment of this utility model, the locking mechanism further includes a sleeve 7, a telescopic rod 8, and a spring 10. The sleeve 7 is disposed at the bottom of the lower bridge frame 1, the telescopic rod 8 is slidably disposed inside the sleeve 7, and a protruding ring is provided at one end of the telescopic rod 8 inside the sleeve 7. The spring 10 is located inside the sleeve 7, one end of the spring 10 abuts against the protruding ring of the telescopic rod 8, and the other end of the spring 10 abuts against the inner wall of the sleeve 7.

[0033] As a further embodiment of this utility model, the locking mechanism also includes a pin rod 9, which is rotatably connected to one end of the telescopic rod 8, and the pin rod 9 engages with the locking plate 6 when locked.

[0034] In this embodiment, in conjunction with the previous embodiment, when the card plate 6 moves in a circular motion around the axis of the rotating shaft 5, as... Figure 1 As shown, the device rotates counterclockwise. In the initial state, the pin 9 is at one end of the telescopic rod 8. When the locking plate 6 comes into contact with the pin 9, the structure at the top of the locking plate 6 will start to squeeze the pin 9. Under the pressure, the pin 9 will push the telescopic rod 8 into the sleeve 7 and squeeze the spring 10 inside the sleeve 7. When the highest point of the slot on the locking plate 6 passes the highest point of the pin 9, the spring 10 will push the pin 9 into the slot of the locking plate 6 through the telescopic rod 8 under the reset action. At this time, the locking plate 6 is also at its highest point. The cooperation between the pin 9 and the locking plate 6 can lock the lower bridge frame 1 and the upper bridge frame 2, so that the upper bridge frame 2 cannot rotate.

[0035] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A flip-folding ladder-type bridge, characterized by, The turnover folding ladder type bridge frame comprises a lower bridge frame (1), an upper bridge frame (2) rotatably arranged on the lower bridge frame (1), a turnover mechanism arranged between the lower bridge frame (1) and the upper bridge frame (2), and a locking mechanism arranged at the bottom of the lower bridge frame (1) and the upper bridge frame (2); The turnover mechanism and the locking mechanism cooperate with each other, the turnover mechanism is used for rotating the upper bridge frame (2) to extend or fold the upper bridge frame (2), and the locking mechanism is used for locking the upper bridge frame (2) and the lower bridge frame (1) to prevent the lower bridge frame (1) and the upper bridge frame (2) from sinking under the action of the gravity of the cable; The turnover mechanism comprises a first support (3), a second support (4) and a rotating shaft (5), the first support (3) is arranged on the lower bridge frame (1), the second support (4) is arranged on the upper bridge frame (2), and the first support (3) and the second support (4) are symmetrically arranged in a group; The rotating shaft (5) is rotatably arranged on the first support (3) and the second support (4), the upper bridge frame (2) rotates around the axis of the rotating shaft (5) through the second support (4), and the first support (3) and the second support (4) are rotatably connected through the rotating shaft (5); The locking mechanism comprises a clamping plate (6), the clamping plate (6) is arranged in a group, and one group of the clamping plate (6) is arranged on one side of the upper bridge frame (2) and rotates around the axis of the rotating shaft (5); The locking mechanism further comprises a sleeve (7), a telescopic rod (8) and a spring (10), the sleeve (7) is arranged at the bottom of the lower bridge frame (1), the telescopic rod (8) is slidably arranged in the sleeve (7), one end of the telescopic rod (8) located in the sleeve (7) is provided with a convex ring, the spring (10) is located in the sleeve (7), one end of the spring (10) abuts against the convex ring of the telescopic rod (8), and the other end of the spring (10) abuts against the inner wall of the sleeve (7); The locking mechanism further comprises a latch rod (9), the latch rod (9) is rotatably connected with one end of the telescopic rod (8), and the latch rod (9) is clamped with the clamping plate (6) when locked.

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