CN216074740U - Bridge cable anchor head protection device - Google Patents

Abstract

The utility model discloses a bridge cable anchor head protection device, which comprises a cover body and a fixer arranged on the cover body, wherein the cover body comprises a sleeve and a cover plate for plugging one end of the sleeve; according to the utility model, the sleeve of the cover body is arranged to be of a hollow interlayer structure, and the hollow interlayer is filled with the fireproof heat-insulating material, so that a good heat-insulating effect is achieved, and the problem that the stability of a structure is influenced due to the damage of the anchor head caused by high temperature or other impacts is solved.

Description

Bridge cable anchor head protection device

Technical Field

The utility model relates to the technical field of building structure protection, in particular to a bridge cable anchor head protection device.

Background

The bridge cable is the most important bearing component for supporting bridges (including sling arch bridges, cable-stayed bridges, suspension bridges and the like), is the life line of the bridge, and the safety and the reliability of the bridge cable are directly related to the safe operation and the service life of the bridge.

Normally, the stay cable is close to the traffic lane, and once the bridge is exploded or in case of fire, the probability of damage to the stay cable is high. At present, most bridge accidents occur in the damage of a guy cable caused by fire or explosion, for example, a tiger door bridge, an oil tank truck is collided by a flat car, and then explosion and fire accidents occur; the explosion and fire accident can occur when a firecracker truck on a bridge of Changjiang river in Wu lake in Anhui is impacted. In the terrorist explosion accidents abroad, the fire accidents are often accompanied, the bridge cable is damaged by the fire or explosion impact, and the stay cable has no corresponding technical means for the safety protection of the fire and the explosion at the same time.

The stay cable anchoring structure is also a key stress structure of the bridge, and the anchor head part is damaged under the impact of high temperature or explosion, so that the strength of the stay cable is reduced, the anchoring effect of the stay cable is reduced, and the safety of the bridge structure is threatened. Therefore, the bridge is ensured to be in a normal anchoring stress state under severe environments such as fire, high temperature, explosion and the like, which is of great importance for ensuring the safety of the bridge.

The utility model provides a bridge cable anchor head protection device, aiming at solving the problems that the existing anchor head protection structure, such as an anchor cable outer anchor head steel strand protection device with the publication number of CN206337560U, adopts a sleeve and a cylinder to protect an anchor head, is easy to damage under the condition of explosion or high temperature, and cannot achieve the purposes of explosion prevention and fire prevention.

Disclosure of Invention

The utility model aims to provide a bridge cable anchor head protection device to achieve the purpose of preventing an anchor head from being impacted by explosion and high temperature.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a bridge cable anchor head protector, includes the cover body and installs fixer on the cover body, the cover body includes the sleeve and right sleeve one end carries out the apron of shutoff, the sleeve includes that shell and cover establish inner bag in the shell, form hollow intermediate layer between shell and the inner bag, pack fire prevention thermal insulation material in the hollow intermediate layer, the fixer be used for with cover body fixed cover is established in the outside of anchor head.

Preferably, the fixer comprises a rubber pad and a connecting plate provided with a through hole, the connecting plate is installed at one end, far away from the cover plate, of the outer wall of the shell, the rubber pad is installed at one side, in contact with the anchor backing plate, of the connecting plate, and the connecting plate penetrates through the through hole through a bolt and is fixed on the anchor backing plate.

Preferably, the cover plate is circumferentially provided with first threads, and the inner wall of the inner container is provided with second threads meshed with the first threads.

Preferably, a handle for opening and closing the cover body is mounted on the cover body.

Preferably, the cross-section of shell with the inner bag is circular, the shell includes a plurality of arc shell lamella that splice each other together, the inner bag includes backing plate and a plurality of arc inner bag lamella that splice together, the inner bag lamella with the radian of shell lamella is the same, inner bag lamella through-hole has all been seted up to the region that is close to the seam on the inner bag lamella, shell lamella through-hole has been seted up to the region that is close to the seam department on the shell lamella, the inner bag lamella with the shell lamella corresponds the setting, inner bag lamella through-hole with the position of shell lamella through-hole corresponds the setting, the backing plate groove has been seted up on the backing plate, the backing plate is installed the seam department of inner bag lamella inner wall, the bolt runs through in proper order shell lamella through-hole and inner bag lamella through-hole and fixes in the backing plate inslot.

Preferably, the inner container further comprises a connecting rod, and two ends of the connecting rod are arranged on the inner wall of the inner container and close to the cover plate.

Preferably, the connecting rod passes through the center of a circle of the section of the inner container and is kept horizontal.

Preferably, the fireproof heat insulation material is a basalt fiber composite felt.

Preferably, the outer shell and the inner container are both made of stainless steel plates with the thickness of 2-4 mm.

Compared with the prior art, the utility model has the following technical effects:

1. according to the utility model, the sleeve of the cover body is arranged to be of a hollow interlayer structure, and the hollow interlayer is filled with the fireproof heat-insulating material, so that a good heat-insulating effect is achieved, and the problem that the stability of a structure is influenced due to the damage of the anchor head caused by high temperature or other impacts is solved.

2. The fixing device comprises a rubber pad and a connecting plate provided with a through hole, the connecting plate is arranged at one end, far away from the cover plate, of the outer wall of the shell, the rubber pad is arranged on one side, in contact with the anchor backing plate, of the connecting plate, and the connecting plate is fixed on the anchor backing plate through the through hole through a bolt, so that the purpose of fixing the bridge cable head protection device on the anchor backing plate is achieved.

3. According to the utility model, the first threads are formed on the circumferential direction of the cover plate, the second threads meshed with the first threads are formed on the inner wall of the liner, the cover plate is screwed into the inner wall of the liner to plug the sleeve, and meanwhile, the cover plate is convenient to disassemble and is also convenient to detect the condition of the anchor head in the bridge cable anchor head protection device.

4. The cover body is provided with a handle for opening and closing the cover body.

Drawings

In order to more clearly illustrate the present invention or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of a bridge cable anchor head protection device;

FIG. 2 is a sectional view taken along line A-A;

wherein, 1, the inner container; 2. a connecting rod; 3. a base plate; 4. a cover plate; 5. a housing; 6. a straight rod; 7. a rubber pad; 8. an anchor backing plate; 10. a handle; 11. a fireproof heat-insulating material.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide a bridge cable anchor head protection device to achieve the purpose of preventing an anchor head from being impacted by explosion and high temperature.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1, a bridge cable anchor head protection device comprises a cover body and a fixer installed on the cover body, wherein the cover body comprises a sleeve and a cover plate 4 for plugging one end of the sleeve, the sleeve comprises a shell 5 and a liner 1 sleeved in the shell, a hollow interlayer is formed between the shell 5 and the liner 1, the hollow interlayer is filled with fireproof heat insulation materials 11, and the fixer is used for fixedly covering the cover body on the outer side of an anchor head; according to the utility model, the sleeve of the cover body is arranged to be of a hollow interlayer structure, and the fireproof heat-insulating material 11 is filled in the hollow interlayer, so that a good heat-insulating effect is achieved, and the problem that the stability of a structure is influenced due to the damage of the anchor head caused by high temperature or other impacts is solved.

Further, the fixer includes rubber pad 7 and the connecting plate of seting up the through-hole, and the one end of apron 4 is kept away from on 5 outer walls of shell to the connecting plate, and rubber pad 7 installs the one side of contacting with anchor backing plate 8 on the connecting plate, and the connecting plate link up the through-hole through the bolt and fix on anchor backing plate 8, reaches to fix bridge cable anchor head protector on anchor backing plate 8 purpose.

Furthermore, first screw thread has been seted up to apron 4 circumference, offers on the inner bag 1 inner wall with first screw thread engaged with second screw thread, can accomplish telescopic shutoff on 1 inner wall of inner bag with apron 4 screw in, and simultaneously, apron 4 dismantles conveniently, also is convenient for detect the condition of anchor head among the bridge cable anchor head protector.

Referring to fig. 1, a handle 10 for opening and closing the cover is mounted on the cover.

Referring to fig. 1-2, the cross-section of the outer shell 5 and the inner container 1 is circular, the outer shell 5 comprises a plurality of arc-shaped outer shell flaps which are spliced together, the inner container 1 comprises a base plate 3 and a plurality of arc-shaped inner container flaps which are spliced together, the radians of the inner container flaps and the outer shell flaps are the same, inner container flap through holes are formed in the areas, close to the seams, of the inner container flaps, outer shell flap through holes are formed in the areas, close to the seams, of the outer shell flaps, the inner container flaps and the outer shell flaps are correspondingly arranged, the positions of the inner container flap through holes and the outer shell flap through holes are correspondingly arranged, a base plate groove is formed in the base plate 3, the base plate 3 is installed at the seams of the inner wall of the inner container flaps, and bolts sequentially penetrate through the outer shell flap through holes and the inner container flap through holes and are fixed in the base plate groove; the shell 5 and the inner container 1 which are arranged in a split mode more conveniently detach the sleeve, and meanwhile when the sleeve is damaged locally, only the damaged part needs to be detached, all replacement is not needed, on one hand, the cost is saved, and on the other hand, the replacement efficiency is accelerated.

Referring to fig. 1, the liner 1 further includes a connecting rod 2, two ends of the connecting rod 2 are mounted on the inner wall of the liner 1 and close to the cover plate 4, further, in the mounting process, a straight rod 6 needs to be arranged on the anchor head, and then the straight rod 6 and the connecting rod 2 are fastened by using a cross fastener, so as to achieve the purpose of further enhancing the connection stability of the bridge cable anchor head protection device and the anchor head; in addition, the cover plate 4 is close to avoid the connecting rod 2 being blocked by the anchor head, and the connecting position of the straight rod 6 and the connecting rod 2 is influenced; still further, the connecting rod 2 passes through the centre of a circle of the section of the inner container 1 and keeps horizontal, so that the connecting rod 2 is in a horizontal and stable state.

Further, the fireproof heat-insulating material 11 is a basalt fiber composite felt.

Furthermore, the outer shell 5 and the inner container 1 are both stainless steel plates with the thickness of 2-4 mm.

Furthermore, sealing rubber strips and sealing glue sealing edges are designed at the bottom of the bridge cable anchor head protection device, and the protection device is isolated from external water vapor, so that the cable head is protected, and the cable is prevented from reacting with the water vapor to form corrosion.

The adaptation according to the actual needs is within the scope of the utility model.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides a bridge cable anchor head protector, its characterized in that, includes the cover body and installs fixer on the cover body, the cover body includes the sleeve and right the apron that shutoff was carried out to sleeve one end, the sleeve includes that shell and cover establish inner bag in the shell, form hollow intermediate layer between shell and the inner bag, fill fire prevention thermal insulation material in the hollow intermediate layer, the fixer be used for with the fixed cover of the cover body is established in the outside of anchor head.

2. The bridge cable anchor head protector as claimed in claim 1, wherein the anchor comprises a rubber pad and a connecting plate with a through hole, the connecting plate is mounted on the outer wall of the housing at an end away from the cover plate, the rubber pad is mounted on the connecting plate at a side contacting with the anchor pad, and the connecting plate is fixed on the anchor pad by passing through the through hole with a bolt.

3. The bridge cable anchor head protector as claimed in claim 1, wherein the cover plate has a first thread formed on a circumferential direction thereof, and a second thread formed on an inner wall of the inner container and engaged with the first thread.

4. A bridge cable anchor head guard according to claim 3, wherein a handle is mounted to the cover for opening and closing the cover.

5. The bridge cable anchor head guard of claim 1, the cross sections of the shell and the inner container are both circular, the shell comprises a plurality of arc-shaped shell petals which are spliced together, the liner comprises a liner plate and a plurality of arc liner flaps spliced together, the radians of the liner flaps and the radians of the shell flaps are the same, the areas of the inner bladder flaps close to the seams are all provided with inner bladder flap through holes, the areas of the outer bladder flaps close to the seams are provided with outer bladder flap through holes, the inner container flap and the outer shell flap are correspondingly arranged, the positions of the inner container flap through hole and the outer shell flap through hole are correspondingly arranged, the liner plate is characterized in that a liner plate groove is formed in the liner plate, the liner plate is installed at the joint of the inner wall of the inner container valve, and bolts sequentially penetrate through the shell valve through hole and the inner container valve through hole and are fixed in the liner plate groove.

6. The bridge cable anchor head protection device of claim 5, wherein the inner container further comprises a connecting rod, and two ends of the connecting rod are mounted on the inner wall of the inner container and close to the cover plate.

7. The bridge cable anchor head guard of claim 6, wherein the connecting rod passes through the center of the cross-section of the inner container and is held horizontally.

8. The bridge cable anchor head protector of claim 1, wherein the fire-resistant insulation material is a basalt fiber composite felt.

9. The bridge cable anchor head guard of claim 1, wherein the outer shell and inner container are each 2-4mm thick stainless steel plates.

Images