CN212033688U

CN212033688U - High-efficient crane span structure of cable maintenance

Info

Publication number: CN212033688U
Application number: CN202020791932.3U
Authority: CN
Inventors: 汪春来; 胡景琼; 唐秀梅
Original assignee: Nanjing Xintang Power Engineering Co ltd
Current assignee: Nanjing Xintang Power Engineering Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-11-27
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a high-efficient crane span structure of cable maintenance is applied to cable bridge technical field, has solved the inconvenient problem of cable maintenance, and it includes the access door that the articulated setting is on the crane span structure roof, be equipped with the fixed block on the outer wall of crane span structure bottom plate, the fixed block has seted up the spacing groove near one side of outer diapire, sliding connection has the stopper that passes the crane span structure bottom plate in the spacing groove, be equipped with the spring between the bottom wall of stopper and spacing groove, the both ends of spring butt respectively on the bottom wall of stopper and spacing groove, the pull rod is worn to be equipped with by the fixed block one end that deviates from the crane span structure bottom plate, the one end fixed connection of; when the access door is closed, the limiting block supports the access door against the inner wall of the bridge side plate. The utility model discloses operation process is simple and convenient, and the operator of being convenient for is quick convenient opens the access door to the operator overhauls the cable.

Description

High-efficient crane span structure of cable maintenance

Technical Field

The utility model belongs to the technical field of the cable testing bridge technique and specifically relates to a high-efficient crane span structure of cable maintenance is related to.

Background

At present, the cable bridge is widely used in human life, the exposed cable generally brings visual fatigue to people, the integral attractiveness is affected, meanwhile, the messy distribution also causes a plurality of problems such as inconvenient maintenance and the like, and the problems are completely overcome by the generation of the cable bridge.

Chinese patent with publication number CN207612021U discloses a cable bridge, the cable bridge is provided with the mount, mount upper portion is provided with the through-hole, the inside of mount is provided with trapezoidal platform, be provided with the bracket in the mount, the front end of bracket is provided with the dovetail groove, the bracket front portion is provided with connects the platform, the bracket rear portion is provided with the saddle, the cross-section of saddle is right angled triangle, the tip of saddle is provided with the locating hole, be provided with the locating pin in the locating hole, the saddle upside is provided with the bottom plate, be provided with the bleeder vent on the bottom plate, the one end of bottom plate is provided with the spout, the other end of bottom plate is provided with the slip table, the bottom plate both sides are provided with the fixed axle, the fixed axle is connected with the curb plate.

An access hole is often seted up on the lateral wall to current cable testing bridge, and the operator can overhaul the cable in the cable testing bridge through the access hole, still can be equipped with the access door that is used for sealing the access hole on the cable testing bridge usually to the access door often can support tightly on the curb plate of cable testing bridge through bolted connection.

The above prior art solutions have the following drawbacks: the operator is when overhauing the cable, and the operator need take off the bolt from the curb plate earlier, opens the access door again and overhauls the cable to make operation process loaded down with trivial details, overhaul the cable for the operator and bring inconvenience.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a high-efficient crane span structure of cable maintenance, its advantage: the operator can directly promote the access door upset, and the operator of being convenient for is quick convenient opens the access door to the operator overhauls the cable.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a cable maintenance high-efficiency bridge comprises an access door which is hinged on a bridge top plate, wherein a fixed block is arranged on the outer wall surface of a bridge bottom plate, a limit groove is formed in one side, close to the outer bottom wall, of the fixed block, a limit block which penetrates through the bridge bottom plate is connected in the limit groove in a sliding mode, a spring is arranged between the limit block and the bottom wall of the limit groove, two ends of the spring are respectively abutted against the bottom walls of the limit block and the limit groove, a pull rod penetrates through one end, away from the bridge bottom plate, of the fixed block, and one end of the pull rod is fixedly; when the access door is closed, the limiting block supports the access door against the inner wall of the bridge side plate.

By adopting the technical scheme, when an operator needs to overhaul the cable in the bridge, the operator pulls the pull rod, so that the pull rod drives the limiting block to approach the bottom wall of the limiting groove, the limiting block compresses the spring, and the limited block is separated from the access door, at the moment, an operator can directly push the access door to turn over towards the inner part of the bridge, thereby being convenient for an operator to open the access door quickly and conveniently so as to be convenient for the operator to overhaul the cable, after the operator loosens the access door, the access door rotates under the influence of the gravity of the access door until the access door is abutted against the inner wall of the side wall of the bridge, an operator loosens the pull rod, the spring pushes part of the limiting blocks out of the limiting grooves under the action of elastic restoring force, make the stopper support the access door tightly on the crane span structure curb plate to the operator seals the access hole fast convenient.

The present invention may be further configured in a preferred embodiment as: the inner wall of the bridge top plate is connected with a tension spring in a hanging mode, and one end, far away from the bridge top plate, of the tension spring is connected to one side, far away from the bridge top plate, of the access door in a hanging mode.

Through adopting above-mentioned technical scheme, the access door is when closing, the access door is tensile to the extension spring, the extension spring is stretched and is had elastic contraction power, when the operator need open the access door, the operator breaks away from the access door through pull rod pulling stopper, the extension spring is under the effect of elastic contraction power this moment, extension spring pulling access door is fast to the inside upset of crane span structure, thereby be convenient for the operator quick convenient open the access door, after the access door is opened simultaneously, under the influence that does not receive external force, the extension spring can hang on the crane span structure roof to the access door, so that the operator overhauls the cable.

The present invention may be further configured in a preferred embodiment as: the access door includes articulated overhead gage and lower baffle each other, one side that the overhead gage was kept away from down the baffle articulates on the crane span structure roof, the one end that the crane span structure roof was kept away from to the extension spring articulates the one side that the overhead gage was kept away from at the baffle down.

Through adopting above-mentioned technical scheme, the operator is when the access door is opened, and baffle is close to the crane span structure roof under the extension spring pulling, and the operator can turn over the overhead gage and lower baffle to the crane span structure outside this moment for the articulated department of overhead gage and lower baffle is located the outside of crane span structure, thereby is convenient for the operator to accomodate the access door fast, and then reduces the access door and occupy the inside space of crane span structure, so that the operator overhauls the cable.

The present invention may be further configured in a preferred embodiment as: the crane span structure curb plate is equipped with two guide rails that the opening is relative in the both sides of access hole edge vertical direction, slide and rotate in the guide rail and be connected with the guide post, the guide post sets up on baffle down.

Through adopting above-mentioned technical scheme, after the stopper breaks away from baffle down, the extension spring produces the inclined pulling force to baffle down, the moving direction of baffle is passed through to the guide rail this moment under the guide post restriction, make baffle down reverse to the outside of crane span structure, and it slides along the length direction of guide rail to drive the guide post, thereby guide rail and guide post have played the effect of direction to the baffle, so that the baffle is quick down to be close to the crane span structure roof, automatic folding purpose has been realized to the access door simultaneously, and then be convenient for quick convenient the opening the access door of operator, so that the operator overhauls the cable.

The present invention may be further configured in a preferred embodiment as: and an air outlet pipe communicated with the interior of the bridge is arranged on the bridge top plate.

Through adopting above-mentioned technical scheme, the cable generates heat easily at the in-process of long-term use for the gas temperature in the crane span structure rises, and high-temperature gas in the crane span structure can be discharged through the play tuber pipe this moment, thereby goes out the tuber pipe and has promoted the ventilation cooling effect of crane span structure, and then has increased the air mobility in the crane span structure, is favorable to the air cycle in the crane span structure, in order to reach the effect of cooling down to the cable.

The present invention may be further configured in a preferred embodiment as: and a filter screen is arranged at one end of the air outlet pipe, which is far away from the bridge top plate.

Through adopting above-mentioned technical scheme, the filter screen can filter the air that gets into the crane span structure inside, blocks the dust in the air, and then reduces the dust and enters into the inside possibility of crane span structure to it causes the cable to be difficult to radiating the condition emergence to reduce the cable because of the dust covers too much.

The present invention may be further configured in a preferred embodiment as: an exhaust fan is arranged inside the air outlet pipe.

Through adopting above-mentioned technical scheme, the operator can be regular start-up exhaust fan, and the exhaust fan can increase the inside air flow rate of air-out pipe to the exhaust fan accelerates the air flow rate in the crane span structure, and then accelerates air cycle's speed in the crane span structure, so that cool down the cable.

The present invention may be further configured in a preferred embodiment as: the bridge bottom plate is rotatably connected with a plurality of rollers along the length direction.

Through adopting above-mentioned technical scheme, the operator lays the in-process of cable in the crane span structure, and the operator drags the length direction removal of cable along the crane span structure, produces the friction between cable and the cylinder this moment for cylinder self produces the rotation, and the cylinder can convert the frictional force between cable and the crane span structure bottom plate into rolling friction, thereby the cylinder can reduce the frictional force between cable and the crane span structure bottom plate, and then the operator of being convenient for more smooth drags the cable, takes place with the condition that reduces crane span structure bottom plate wearing and tearing cable.

To sum up, the utility model discloses a following at least one useful technological effect:

1. an operator can directly push the access door to turn over, so that the operator can open the access door quickly and conveniently, and the operator can overhaul the cable conveniently;

2. the lower baffle plate is guided through the guide rail and the guide column, so that the purpose that the access door can be automatically folded is realized, and an operator can quickly and conveniently open the access door, so that the operator can conveniently overhaul the cable;

3. the friction force between the cable and the bridge bottom plate is reduced through the roller, so that an operator can pull the cable more smoothly, and the situation that the cable is abraded by the bridge bottom plate can be reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the access door of the present embodiment.

Fig. 3 is a schematic structural diagram for embodying the guide rail of the present embodiment.

Fig. 4 is a schematic structural diagram for embodying the guide post in this embodiment.

Fig. 5 is a schematic structural diagram of the embodiment after the access door is folded.

In the figure, 1, a bridge top plate; 11. a bridge deck; 12. a bridge frame side plate; 13. an access hole; 14. a through hole; 15. a connecting plate; 16. a drum; 2. an access door; 21. an upper baffle plate; 22. a lower baffle plate; 23. a tension spring; 24. a guide rail; 25. a guide post; 26. a hinge; 3. a fixed block; 31. a limiting groove; 32. a limiting block; 33. a spring; 34. a pull rod; 4. an air outlet pipe; 41. a filter screen; 42. an exhaust fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a high-efficient crane span structure of cable maintenance, including being used for sealing access door 2 of access hole 13, access door 2 includes overhead gage 21 and lower baffle 22, and overhead gage 21 articulates on crane span structure roof 1, and lower baffle 22 articulates one side of keeping away from crane span structure roof 1 at overhead gage 21 through hinge 26, and hinge 26 sets up one side at overhead gage 21 towards the crane span structure is inside. In a normal state, the lower baffle 22 naturally sags and is attached to the inner wall of the bridge side plate 12. When the operator need overhaul the cable in the crane span structure, the operator directly promotes down baffle 22 and last baffle 21 to can outwards fold the articulated limit between upper baffle 21 and the lower baffle 22, and then reduce access door 2 and occupy the inside space of crane span structure, so that the operator overhauls the cable.

Referring to fig. 1 and 2, fixedly connected with fixed block 3 on the outer wall of crane span structure bottom plate 11, spacing groove 31 has been seted up to the one end that fixed block 3 is close to crane span structure bottom plate 11, and sliding connection has the stopper 32 that passes crane span structure bottom plate 11 in the spacing groove 31 to stopper 32 extends to the one side that lower baffle 22 deviates from crane span structure curb plate 12. The one end fixedly connected with pull rod 34 of stopper 32 orientation spacing groove 31 diapire, the one end that pull rod 34 kept away from stopper 32 is worn out fixed block 3. The pull rod 34 is sleeved with a spring 33 between the bottom walls of the limit block 32 and the limit groove 31, and two ends of the spring 33 are respectively and fixedly connected to the bottom walls of the limit block 32 and the limit groove 31. In a normal state, the spring 33 pushes the stopper 32 to extend out of the stopper groove 31, so that the stopper 32 abuts against the lower baffle 22 on the inner wall of the bridge side plate 12. At this moment, the limiting block 32 limits the moving direction of the lower baffle 22, so that the limiting block 32 has a fixing effect on the lower baffle 22, and the condition that the access door 2 is opened by mistake by an operator is reduced.

Referring to fig. 3 and 4, one side of the lower baffle 22, which is away from the bridge side plate 12 and away from the upper baffle 21, is hung with a tension spring 23, one end of the tension spring 23, which is away from the lower baffle 22, is hung on the bridge top plate 1, the tension spring 23 is obliquely arranged between the lower baffle 22 and the bridge top plate 1, and two tension springs 23 are uniformly distributed along the length direction of the lower baffle 22. The bridge side plate 12 is provided with two guide rails 24 at two ends of the access opening 13 along the length direction, and openings of the two guide rails 24 are oppositely arranged. Two guide posts 25 respectively matched with the two guide rails 24 are arranged on the lower baffle 22, the guide posts 25 are cylindrical, the guide posts 25 are connected in the guide rails 24 in a sliding and rotating mode, and the guide posts 25 are higher than the connection points of the tension springs 23 and the lower baffle 22.

Referring to fig. 3 and 5, when the lower baffle 22 is pressed against the bridge side plate 12 by the limiting block 32, the tension spring 23 is in a stretched state, the tension spring 23 is stretched to have elastic contraction force, and the tension spring 23 generates oblique tension on the lower baffle 22. When the operator pulls the pull rod 34, the pull rod 34 drives the stopper 32 to approach the bottom wall of the stopper groove 31 (as shown in fig. 2) until the stopper 32 is separated from the lower baffle 22. At this time, under the action of elastic contraction force of the tension spring 23, the tension spring 23 pulls the lower baffle 22 to incline towards the outer side of the bridge frame around the guide column 25. Simultaneously baffle 22 drives guide post 25 down and slides along the length of guide rail 24, and baffle 22 is close to crane span structure roof 1 down for baffle 22 and overhead gage 21 are folding down, thereby the operator of being convenient for is quick convenient opens access door 2, so that the operator overhauls the cable. When an operator needs to close the access door 2, the operator presses the hinged position of the upper baffle plate 21 and the lower baffle plate 22, so that the lower baffle plate 22 pushes the guide column 25 to move to the side away from the upper baffle plate 21 until the upper baffle plate 21 and the lower baffle plate 22 are located on the same vertical plane, the operator releases the pull rod 34, and the spring 33 (shown in fig. 2) pushes the limiting block 32 to tightly abut the lower baffle plate 22 on the bridge side plate 12.

Referring to fig. 1 and 2, a through hole 14 is formed in the bridge bottom plate 11 along the length direction, two connecting plates 15 are arranged on two sides of the through hole 14 of the bridge bottom plate 11 along the length direction, and the two connecting plates 15 are both arranged on the outer wall surface of the bridge bottom plate 11. The two connecting plates 15 are simultaneously and rotatably connected with rollers 16, a plurality of rollers 16 are arranged along the length direction of the connecting plates 15, and the rollers 16 protrude out of the inner surface of the bridge bottom plate 11. During the process of laying the cable, an operator drags the cable to slide on the bridge bottom plate 11, and the cable and the roller 16 generate friction, so that the roller 16 rotates. The rollers 16 may convert friction between the cable and the tray floor 11 into rolling friction, thereby reducing friction between the cable and the tray floor 11 to facilitate an operator pulling the cable in the tray, and may reduce wear of the tray floor 11 on the cable.

Referring to fig. 1 and 2, the bridge top plate 1 is provided with a plurality of air outlet pipes 4 along the length direction, the air outlet pipes 4 are communicated with the inside of the bridge, and an exhaust fan 42 is arranged on the inner wall of the air outlet pipes 4. The cable is prone to generate heat over time, causing the temperature within the tray to rise. The operator can accelerate the air flow rate in the tuber pipe 4 through exhaust fan 42, and exhaust fan 42 discharges the high-temperature gas in the crane span structure for the inside air cycle that forms of crane span structure, in order to reach the effect of cooling down to the cable. Meanwhile, a filter screen 41 is arranged on one side, away from the bridge top plate 1, of the air outlet pipe 4, and the filter screen 41 can filter air entering the bridge so as to reduce dust entering the bridge.

The implementation principle of the embodiment is as follows: when an operator overhauls the cable in the bridge, the operator pulls the pull rod 34, and the pull rod 34 drives the limiting block 32 to be close to the bottom wall of the limiting groove 31 until the limiting block 32 is separated from the lower baffle 22. The tension spring 23 now pulls the lower stop 22 to reverse around the guide post 25 to the outside of the bridge. Meanwhile, the lower baffle 22 drives the guide post 25 to slide along the vertical direction of the guide rail 24, so that the lower baffle 22 and the upper baffle 21 are folded, and an operator can open the access door 2 quickly and conveniently.

When an operator needs to close the access door 2, the operator pushes the upper baffle 21 and the lower baffle 22 to be folded, so that the lower baffle 22 pushes the guide column 25 to slide towards one side far away from the upper baffle 21, until the upper baffle 21 and the lower baffle 22 are positioned on the same vertical plane, the operator releases the pull rod 34, the spring 33 pushes the limiting block 32 to enable the lower baffle 22 to be tightly abutted to the bridge frame side plate 12, and the access opening 13 is sealed after the operation is finished.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high-efficient crane span structure of cable maintenance, includes that articulated access door (2) that set up on crane span structure roof (1), its characterized in that: the outer wall surface of the bridge bottom plate (11) is provided with a fixing block (3), one side, close to the outer bottom wall, of the fixing block (3) is provided with a limiting groove (31), a limiting block (32) penetrating through the bridge bottom plate (11) is connected in the limiting groove (31) in a sliding mode, a spring (33) is arranged between the limiting block (32) and the bottom wall of the limiting groove (31), two ends of the spring (33) abut against the bottom walls of the limiting block (32) and the limiting groove (31) respectively, a pull rod (34) penetrates through one end, away from the bridge bottom plate (11), of the fixing block (3), and one end of the pull rod (34) is fixedly connected to the limiting block (32);

when the access door (2) is closed, the limit block (32) supports the access door (2) against the inner wall of the bridge side plate (12).

2. The cable repair high efficiency bridge stand of claim 1, wherein: the inner wall of the bridge roof (1) is connected with a tension spring (23) in a hanging mode, and one end, far away from the bridge roof (1), of the tension spring (23) is connected with one side, far away from the bridge roof (1), of the access door (2) in a hanging mode.

3. The cable repair high efficiency bridge stand of claim 2, wherein: access door (2) are including articulated overhead gage (21) and lower baffle (22) each other, one side that overhead gage (21) kept away from lower baffle (22) articulates on crane span structure roof (1), the one end that overhead gage (21) were kept away from to crane span structure roof (1) is articulated under baffle (22) one side of keeping away from overhead gage (21) in extension spring (23).

4. The cable repair high efficiency bridge stand of claim 3, wherein: the crane span structure curb plate (12) are equipped with two relative guide rails of opening (24) in access hole (13) along the both sides of vertical direction, slide and rotate in guide rail (24) and be connected with guide post (25), guide post (25) set up under on baffle (22).

5. The cable repair high efficiency bridge stand of claim 1, wherein: and an air outlet pipe (4) communicated with the interior of the bridge is arranged on the bridge top plate (1).

6. The cable repair high efficiency bridge stand of claim 5, wherein: and a filter screen (41) is arranged at one end of the air outlet pipe (4) far away from the bridge top plate (1).

7. The cable repair high efficiency bridge stand of claim 5, wherein: an exhaust fan (42) is arranged inside the air outlet pipe (4).

8. The cable repair high efficiency bridge stand of claim 1, wherein: the bridge bottom plate (11) is rotationally connected with a plurality of rollers (16) along the length direction.