L-shaped corner connecting structure of trapezoidal bridge

Abstract

The utility model relates to the technical field of trapezoidal bridge frames, in particular to an L-shaped corner connecting structure of trapezoidal bridge frames, which comprises an L-shaped connecting frame, two trapezoidal bridge frames are vertically connected onto the L-shaped connecting frame, two L-shaped plates are arranged at the top of the L-shaped connecting frame, and positioning clamping grooves are respectively arranged at two ends of the L-shaped connecting frame. Positioning clamping blocks movably clamped in the positioning clamping grooves are arranged at the bottoms of the two trapezoidal bridge frames correspondingly, first pin holes are formed in the positioning clamping blocks in a penetrating mode, second pin holes penetrating through the L-shaped connecting frame shell are formed in the two sides of the positioning clamping grooves, pins are movably inserted into the first pin holes and the second pin holes, and check blocks are arranged at the tops of the pins; according to the utility model, a large number of connecting plates and bolts are not needed for connection and fixation, the operation is convenient, a ribbon is not needed for fixation, the situation that the cable falls off due to high operation difficulty in the air is avoided, the danger during cable laying is reduced, and the cable is not easy to damage after being laid at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to trapezoidal bridge technology field, specifically a trapezoidal bridge's L type corner connecting structure. BACKGROUND

[0002] Cable bridge is divided into groove type, tray type and ladder type, net format and ladder form structure, by support, tray and installation accessories etc. composition, building bridge can be independently erected, also can be laid on various buildings and pipe gallery support, should embody simple structure, modeling beautiful, configuration flexible and maintenance convenient etc. characteristics, all parts need to carry out galvanization treatment, install the bridge of building outside open air.

[0003] Chinese patent application document discloses a kind of moulding trapezoidal bottom high-strength cable bridge (CN107528265A), comprising: bottom plate, bottom plate is made of two pairs of joint trapezoidal groove type plate, trapezoidal groove type plate is respectively formed several parallel trapezoidal groove parts along length direction upwardly convex, there is a plane between two adjacent trapezoidal groove parts Part;Side plate, the left and right sides of bottom plate are respectively provided with a side plate, the lower flange of two side plates is respectively inwardly turned to form a lip on the direction of bottom plate, the left and right sides of several plane parts are respectively erected on the two lips of two side plates;The upper flange of two side plates is respectively bent to form the bending part with several angles in the direction of bottom plate, and bending part is open square tube structure;The middle part of two side plates is respectively inwardly bent to form semicircular reinforcing rib in the direction of bottom plate, and reinforcing rib is parallel to bending part.The present application can minimize the amount of steel, and obtain maximum load effect and stability.

[0004] The existing trapezoidal cable bridge can only meet the laying of straight cable when laying cable, lacks transition connecting assembly at cable corner, and most of the corners are fixed by cable ties during laying, which not only consumes materials, but also is too cumbersome to operate, and sometimes the bending angle is too large, which can easily cause the transmission line inside the cable to break, thereby causing the cable to be damaged, and most of the current cable bridges are connected by connecting plate and bolt, which is difficult to operate in the air, and is prone to falling, which not only has certain danger, but also causes damage to the cable bridge, therefore, the utility model provides a kind of L type corner connecting structure of trapezoidal bridge to solve the above-mentioned problems. Utility model content

[0005] The utility model aims at providing a kind of L type corner connecting structure of trapezoidal bridge to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The application discloses an L-shaped corner connecting structure of a ladder-shaped bridge, which comprises an L-shaped connecting frame, two ladder-shaped bridges are vertically connected to the L-shaped connecting frame, two L-shaped plates are arranged on the top of the L-shaped connecting frame, positioning clamping grooves are formed in the two ends of the L-shaped connecting frame, positioning clamping blocks are movably clamped in the positioning clamping grooves, first pin holes are formed in the positioning clamping blocks, second pin holes are formed in the two sides of the positioning clamping grooves and extend through the shell of the L-shaped connecting frame, a pin is movably inserted into the first pin hole and the second pin hole, a stop block is arranged on the top of the pin, a spring is arranged between the stop block and the L-shaped connecting frame, and a locking bolt is threadedly connected to the L-shaped connecting frame.

[0008] The locking bolt and the pin are connected through a linkage structure, and when the locking bolt is screwed to the inside of the L-shaped connecting frame, the pin is horizontally moved and clamped in the first pin hole and the second pin hole.

[0009] The L-shaped corner connecting structure of the ladder-shaped bridge comprises two L-shaped plates and two ladder-shaped bridges, and an L-shaped channel is formed through cooperation of the two L-shaped plates and the two ladder-shaped bridges, and cables are arranged in the L-shaped channel.

[0010] The L-shaped corner connecting structure of the ladder-shaped bridge comprises mounting holes formed in the ladder-shaped bridges and the positioning clamping blocks respectively, and a bolt mounting plate is arranged between the ladder-shaped bridges and the positioning clamping blocks, so that the ladder-shaped bridges and the positioning clamping blocks are connected through bolts through cooperation of the bolt mounting plate and the mounting holes.

[0011] The linkage structure comprises a rectangular cylinder hinged to the side wall of the L-shaped connecting frame, rectangular rods are movably clamped in the two ends of the rectangular cylinder, one of the rectangular rods is hinged to the pin, the other of the rectangular rods is hinged to a push plate extending through the shell of the L-shaped connecting frame, one end of the push plate is a slope surface, one end of the locking bolt is rotatably mounted on a cylinder through a bearing, the two ends of the cylinder are rotatably mounted on rollers, the rollers are in rolling connection with the slope surface of one end of the push plate, and a limiting assembly is arranged between the cylinder and the L-shaped connecting frame to limit movement of the cylinder.

[0012] The limiting assembly comprises a fixed plate fixed to the L-shaped connecting frame, a limiting groove is formed in the fixed plate, a limiting rod is arranged on the cylinder and movably clamped in the limiting groove and slides in the limiting groove.

[0013] The outer dimension of the positioning clamping block is matched with the inner dimension of the positioning clamping groove, and the positioning clamping block is clamped in the positioning clamping groove.

[0014] The L-shaped connecting frame is provided with a threaded hole, and the locking bolt is inserted into and threadedly connected with the threaded hole.

[0015] Compared with the prior art, the utility model has the advantages that: the L-shaped connecting frame is arranged at the vertical connection of the two ladder-shaped bridge frames to lay the cable at the corner, the positioning clamping block is fixed at the bottom of the ladder-shaped bridge frame in advance, and then is clamped in the positioning clamping slot of the L-shaped connecting frame to preliminarily limit and fix the two ladder-shaped bridge frames and the L-shaped connecting frame, then only the locking bolt needs to be rotated, the locking bolt is screwed into the L-shaped connecting frame to drive the cylinder to move, the roller is rolled at the bottom of one end of the push plate to horizontally move the push plate, the rectangular cylinder and the rectangular rod are rotated to horizontally move the pin of the rectangular rod, the positioning clamping block is fixed after being clamped in the positioning clamping slot, and the L-shaped connecting frame and the two ladder-shaped bridge frames are quickly connected and fixed, and the L-shaped plate of the L-shaped connecting frame is matched with the ladder-shaped bridge frame to lay the cable at the corner.

[0016] Therefore, the utility model does not need to be connected and fixed by a large number of connecting plates and bolts, but only needs to be screwed on the locking bolt to realize the corner connection and fixation between the two ladder-shaped bridge frames and the L-shaped connecting frame, realizes the laying of the cable at the corner, is convenient to operate, does not need to be fixed by a strap, avoids the situation that the difficulty of operation in the air is high and the cable is dropped, reduces the danger during the laying of the cable, and makes the laid cable more difficult to be damaged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the L-shaped corner connecting structure of the ladder-shaped bridge frame.

[0018] Figure 2 It is an explosion structure schematic view of the L-shaped corner connecting structure of the ladder-shaped bridge frame.

[0019] Figure 3 It is a ladder-shaped bridge frame and positioning clamping block structure schematic view of the L-shaped corner connecting structure of the ladder-shaped bridge frame.

[0020] Figure 4 It is a local structure schematic view of the L-shaped corner connecting structure of the ladder-shaped bridge frame.

[0021] Figure 5 It is a local structure schematic view of the L-shaped corner connecting structure of the ladder-shaped bridge frame. Figure 4 after being cut open.

[0022] Figure 6It is a linkage structure structure schematic view of L type corner connecting structure of ladder bridge.

[0023] Figure 7 It is a linkage structure structure schematic view of L type corner connecting structure of ladder bridge. Figure 5 It is a top view structure schematic view.

[0024] Figure 8 It is a linkage structure structure schematic view of L type corner connecting structure of ladder bridge. Figure 7 It is a partial enlarged structure schematic view.

[0025] In the figure: 1, L type connecting frame; 2, ladder bridge; 3, L type plate; 4, positioning slot; 5, positioning block; 6, first pin hole; 7, second pin hole; 8, pin; 9, spring; 10, rectangular cylinder; 11, rectangular rod; 12, push plate; 13, locking bolt; 14, cylinder; 15, roller; 16, fixed plate; 17, limiting groove; 18, limiting rod; 19, bolt mounting plate. DETAILED DESCRIPTION

[0026] 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. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0027] Please refer to Figures 1-8 As an embodiment of the present application, a L type corner connecting structure of ladder bridge comprises an L type connecting frame 1, two ladder bridges 2 are vertically connected on the L type connecting frame 1, two L type plates 3 are arranged on the top of the L type connecting frame 1, a positioning slot 4 is formed at each end of the L type connecting frame 1, a positioning block 5 movably connected in the positioning slot 4 is arranged at the bottom of each ladder bridge 2, a first pin hole 6 is formed through the positioning block 5, a second pin hole 7 is formed through the shell of the L type connecting frame 1 at the two sides of the positioning slot 4, a pin 8 is movably inserted into the first pin hole 6 and the second pin hole 7, a stopper is arranged on the top of the pin 8, a spring 9 is connected between the stopper and the L type connecting frame 1, and a locking bolt 13 is threadedly connected to the L type connecting frame 1.

[0028] The locking bolt 13 and the pin 8 are connected through a linkage structure, when the locking bolt 13 is screwed to the inside of the L type connecting frame 1, the pin 8 is horizontally moved and clamped in the first pin hole 6 and the second pin hole 7.

[0029] In the embodiment, the L-shaped connecting frame 1 is arranged at the vertical connecting position of the two ladder-shaped bridge frames 2 to lay the cable at the corner, the positioning clamping block 5 is fixed at the bottom of the ladder-shaped bridge frame 2 in advance, and then the positioning clamping block 5 is clamped in the positioning clamping slot 4 of the L-shaped connecting frame 1, so that the preliminary limiting and fixing between the two ladder-shaped bridge frames 2 and the L-shaped connecting frame 1 is completed, then the locking bolt 13 is rotated, the locking bolt 13 is screwed into the L-shaped connecting frame 1 through the threaded connection between the locking bolt 13 and the L-shaped connecting frame 1, the locking bolt 13 and the pin 8 are connected through the linkage structure, and when the locking bolt 13 is screwed to the inside of the L-shaped connecting frame 1, the pin 8 is driven to move horizontally and is clamped in the first pin hole 6 and the second pin hole 7, the positioning clamping block 5 is fixed through the pin connection after the positioning clamping block 5 is clamped in the positioning clamping slot 4, so that the quick connection and fixing between the L-shaped connecting frame 1 and the two ladder-shaped bridge frames 2 are realized, and the L-shaped plate 3 of the L-shaped connecting frame 1 is matched with the ladder-shaped bridge frame 2 to lay the cable at the corner.

[0030] As a further scheme of the utility model, the two L-shaped plates 3 and the two ladder-shaped bridge frames 2 form a continuous L-shaped channel, and the cable is laid in the L-shaped channel.

[0031] In the embodiment, the ladder-shaped bridge frame 2 and the L-shaped plate 3 of the L-shaped connecting frame 1 support the cable, the two L-shaped plates 3 and the two ladder-shaped bridge frames 2 form a continuous L-shaped channel, the cable can be directly laid at the corner, and the laying of the cable at the corner is ensured.

[0032] As a further scheme of the utility model, the mounting holes are formed in the ladder-shaped bridge frame 2 and the positioning clamping block 5 respectively, the bolt mounting plate 19 is arranged between the ladder-shaped bridge frame 2 and the positioning clamping block 5, and the bolt mounting plate 19 is matched with the mounting hole to lock and connect the ladder-shaped bridge frame 2 and the positioning clamping block 5 through the bolt.

[0033] In the embodiment, the bolt connection is convenient to disassemble and assemble, the positioning clamping block 5 is fixed at the bottom of the ladder-shaped bridge frame 2 through the bolt connection, so that the assembly and installation between the ladder-shaped bridge frame 2 and the L-shaped connecting frame 1 are more convenient.

[0034] As a further scheme of the utility model, the linkage structure comprises a rectangular cylinder 10 hingedly connected to the side wall of the L-shaped connecting frame 1, two rectangular rods 11 movably clamped at the two ends of the rectangular cylinder 10 respectively, one rectangular rod 11 being hingedly connected to the pin 8, and the other rectangular rod 11 being hingedly connected to a push plate 12 arranged through the shell of the L-shaped connecting frame 1, one end of the push plate 12 being a slope surface, one end of a locking bolt 13 being rotatably installed in the cylinder 14 through a bearing, the cylinder 14 being rotatably installed with two rollers 15 at the two ends, the rollers 15 being in contact with and rolling connection with the slope surface at one end of the push plate 12, and a limiting assembly being arranged between the cylinder 14 and the L-shaped connecting frame 1 for limiting the movement of the cylinder 14.

[0035] In the embodiment, the locking bolt 13 is rotated, the locking bolt 13 is screwed into the inside of the L-shaped connecting frame 1 to push the cylinder 14 to move, the rollers 15 are rolled at the bottom of one end of the push plate 12, the push plate 12 is horizontally moved, the rectangular cylinder 10 and the rectangular rod 11 are rotated, the pin 8 at one end of the rectangular rod 11 is horizontally moved, the pin 8 is inserted into the first pin hole 6 and the second pin hole 7, the positioning block 5 is clamped in the positioning slot 4, the positioning block 5 is fixed by the pin after being clamped in the positioning slot 4, the quick connection and fixing between the L-shaped connecting frame 1 and the two trapezoidal bridge frames 2 are realized, and the L-shaped plate 3 on the L-shaped connecting frame 1 is used for the laying of the cable at the corner.

[0036] As a further scheme of the utility model, the limiting assembly comprises a fixed plate 16 fixed in the L-shaped connecting frame 1, a limiting slot 17 is formed in the fixed plate 16, a limiting rod 18 is arranged on the cylinder 14, and the limiting rod 18 is movably clamped in and slides in the limiting slot 17.

[0037] In the embodiment, the locking bolt 13 is rotated, the locking bolt 13 is screwed into the inside of the L-shaped connecting frame 1 to push the cylinder 14 to move, the rollers 15 are rolled at the bottom of one end of the push plate 12, the push plate 12 is horizontally moved, the rectangular cylinder 10 and the rectangular rod 11 are rotated, the pin 8 at one end of the rectangular rod 11 is horizontally moved, the pin 8 is inserted into the first pin hole 6 and the second pin hole 7, the positioning block 5 is clamped in the positioning slot 4, the positioning block 5 is fixed by the pin after being clamped in the positioning slot 4, the quick connection and fixing between the L-shaped connecting frame 1 and the two trapezoidal bridge frames 2 are realized, and the L-shaped plate 3 on the L-shaped connecting frame 1 is used for the laying of the cable at the corner.

[0038] As a further scheme of the utility model, the outer size of the positioning block 5 is matched with the inner size of the positioning slot 4, and the positioning block 5 is embedded and clamped in the positioning slot 4.

[0039] In the embodiment, the positioning block 5 is embedded and clamped in the positioning slot 4, so that the trapezoidal bridge frame 2 can be quickly positioned and clamped and installed on the L-shaped connecting frame 1, and the trapezoidal bridge frame 2 is convenient to disassemble, and after the positioning and clamping, the first pin hole 6 and the second pin hole 7 are aligned, so that the pin 8 is convenient to insert.

[0040] As a further scheme of the utility model, a threaded hole is formed in the L-shaped connecting frame 1, and the locking bolt 13 is inserted into and threadedly connected with the threaded hole.

[0041] In this embodiment, the locking bolt 13 is inserted into the threaded hole and screwed with the threaded hole, so that when the locking bolt 13 is rotated, it can slowly move axially into the L-shaped connecting frame 1, thereby pushing the cylinder 14 to move.

[0042] The utility model discloses a setting L type connecting frame 1 at two trapezoidal bridge 2 vertical junctions is used for laying the corner of cable, when laying, the positioning clamping block 5 is fixed in the bottom of trapezoidal bridge 2 in advance, then movable clamping is set in the positioning clamping slot 4 of L type connecting frame 1, the preliminary location fixing between two trapezoidal bridge 2 and L type connecting frame 1 is completed, after only need to rotate locking bolt 13, utilize locking bolt 13 and L type connecting frame 1 threaded connection and push locking bolt 13 into L type connecting frame 1 tightly and push cylinder 14 to move, drive the roller 15 to roll in the bottom of one end of push plate 12, thereby pushing push plate 12 to move horizontally, drive rectangular cylinder 10, rectangular rod 11 to rotate, further push rectangular rod 11 one end pin 8 to move horizontally, through pin 8 and insert in first pin hole 6, second pin hole 7, spring 9 is extruded by pin 8 at this time, and spring 9 is in compression state, and pin 8 moves horizontally to first pin hole 6, second pin hole 7 is fixed in the positioning clamping block 5 after clamping in the positioning clamping slot 4, thereby realizing the quick connection and fixing between L type connecting frame 1 and two trapezoidal bridge 2, through the cooperation of L type plate 3 on L type connecting frame 1 and trapezoidal bridge 2 for the laying of the corner of cable, in addition, when trapezoidal bridge 2 is disassembled, only need to rotate locking bolt 13 reversely and make locking bolt 13 be screwed off from L type connecting frame 1, then pin 8 will move outward under the elastic force of spring 9, and pin 8 is no longer fixed in first pin hole 6, second pin hole 7, thereby facilitating the quick release of the pin connection and fixing between L type connecting frame 1 and trapezoidal bridge 2, and facilitating the quick disassembly of trapezoidal bridge 2.

[0043] Therefore, the utility model need not adopt a large number of connecting plates and bolts to connect and fix, only need to realize the corner connection and fixing between two trapezoidal bridge 2 and L type connecting frame 1 through the tightening operation of a locking bolt 13, realize the laying of the corner of cable, convenient operation, need not to tie the band fixed, avoid the situation that the difficulty degree is high in the air operation falls, reduce the danger when cable is laid, simultaneously make cable laying more difficult to damage after.

[0044] The above embodiment is exemplary and not restrictive, so the technical scheme of the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model, which is included in the utility model.

Claims

1. An L-shaped corner connection structure for a trapezoidal cable tray, comprising an L-shaped connecting frame (1), characterized in that, The L-shaped connecting frame (1) is vertically connected to two trapezoidal bridges (2). The top of the L-shaped connecting frame (1) is provided with two L-shaped plates (3). The two ends of the L-shaped connecting frame (1) are respectively provided with positioning slots (4). The bottom of the two trapezoidal bridges (2) is respectively provided with positioning blocks (5) that are movably engaged in the positioning slots (4). The positioning blocks (5) are provided with a first pin hole (6). The positioning slots (4) are provided with a second pin hole (7) that is provided in the housing of the L-shaped connecting frame (1) on both sides. The first pin hole (6) and the second pin hole (7) are movably inserted with pins (8). The top of the pins (8) is provided with a stop block. The stop block is connected to the L-shaped connecting frame (1) with a spring (9). The L-shaped connecting frame (1) is threaded with a locking bolt (13). The locking bolt (13) and the pin (8) are connected by a linkage structure. When the locking bolt (13) is tightened to the inside of the L-shaped connecting frame (1), it drives the pin (8) to move horizontally and engage inside the first pin hole (6) and the second pin hole (7).

2. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 1, characterized in that, The two L-shaped plates (3) and the two trapezoidal cable trays (2) work together to form a continuous L-shaped channel, and the cables are laid in the L-shaped channel.

3. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 1, characterized in that, The trapezoidal cable tray (2) and the positioning block (5) are respectively provided with mounting holes. A bolt mounting plate (19) is provided between the trapezoidal cable tray (2) and the positioning block (5). The trapezoidal cable tray (2) and the positioning block (5) are locked together by bolts through the cooperation of the bolt mounting plate (19) and the mounting hole.

4. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 1, characterized in that, The linkage structure includes a rectangular cylinder (10) hinged to the side wall of the L-shaped connecting frame (1). Rectangular rods (11) are movably engaged at both ends of the rectangular cylinder (10). One of the rectangular rods (11) is hinged to a pin (8), and the other rectangular rod (11) is hinged to a push plate (12) that penetrates the housing of the L-shaped connecting frame (1). One end of the push plate (12) is a slope. One end of the locking bolt (13) is rotatably mounted with a cylinder (14) via a bearing. Rollers (15) are rotatably mounted at both ends of the cylinder (14). The rollers (15) contact and roll with the slope at one end of the push plate (12). A limiting component for the movement of the cylinder (14) is provided between the cylinder (14) and the L-shaped connecting frame (1).

5. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 4, characterized in that, The limiting component includes a fixing plate (16) fixed in the L-shaped connecting frame (1), a limiting groove (17) is provided on the fixing plate (16), and a limiting rod (18) is provided on the cylinder (14). The limiting rod (18) is movably engaged in the limiting groove (17) and slides in the limiting groove (17).

6. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 1, characterized in that, The outer dimensions of the positioning block (5) are adapted to the inner dimensions of the positioning slot (4), and the positioning block (5) is embedded and engaged inside the positioning slot (4).

7. The L-shaped corner connection structure of a trapezoidal cable tray according to claim 1, characterized in that, The L-shaped connecting bracket (1) has a threaded hole, and the locking bolt (13) is inserted into the threaded hole and threadedly connected to the threaded hole.

Images