CN209784625U - Communication protection is with fire-retardant polyvinyl chloride pipe of low cigarette - Google Patents

Abstract

The utility model discloses a communication protection is with low fire-retardant polyvinyl chloride pipe of cigarette, the utility model relates to a communication pipeline field, concretely relates to communication protection is with low fire-retardant polyvinyl chloride pipe of cigarette. The utility model discloses a benefit: the utility model adopts the matching cooperation of the low-smoke halogen polyethylene sheath layer and the silver-plated steel strip armor layer, when fire occurs, the low-smoke halogen polyethylene sheath layer can effectively prevent flame from spreading, and has small smoke content, no halogen and environmental protection; the communication optical cable is wrapped inside the silver-plated steel strip armor layer, the rigidity of the pipeline can be increased by the silver-plated steel strip armor layer, direct contact between flame and the optical cable can be effectively isolated, and the optical cable is protected; the leakproofness of two root canals body junctions can be increased when two root canals bodies are connected, and the body inboard is provided with the waterproof layer simultaneously, can effectively improve the leakproofness of body to effectively prevent the inside water intaking of body, thereby influence the information transmission of optical cable.

Description

Communication protection is with fire-retardant polyvinyl chloride pipe of low cigarette

Technical Field

The utility model relates to a communication pipeline field, concretely relates to communication protection is with low fire-retardant polyvinyl chloride pipe of cigarette.

Background

At present, the communication optical cable is erected in a mode of pipeline erection, overhead erection and underground burying. In urban areas, due to the reasons of dense houses, complex pipelines under roads and the like, optical cables are generally laid without adopting an underground mode, a large-capacity optical cable pipeline is generally arranged in an overhead position in an overhead mode, and the optical cables are arranged in the optical cable pipeline and laid in an overhead mode.

However, there are still some problems with communication pipes in use: (1) the fire hazard is increased while the social wealth is increased day by day, the danger of fire is increased, the hazard of fire is increased, the existing communication pipe is poor in flame-retardant and fire-resistant performance, the existing communication pipe is inflammable, and the situation of the fire is aggravated by toxic gas released during combustion, so that huge personnel and property losses are finally caused. (2) The existing communication pipeline mode generally adopts threaded connection or hot melt connection, the threaded connection causes inconvenience in installation and needs a large amount of time consumption, and the threaded connection is often poor in sealing performance, so that the sealing performance of the pipeline is affected; and the central line is needed to be corrected before hot melting connection, so that the processing precision can be improved, the time for correcting the central line is long, the connection is unstable, the connection time of the MPP pipe is prolonged, and the working efficiency of workers is reduced. (3) Because the current communication optical cable generally adopts built on stilts mode, communication pipeline can take place ageing after long-term the use to influence the leakproofness of pipeline, the phenomenon of seeping water appears, thereby influence the information transfer of the inside optical cable of pipeline, can directly damage the optical cable even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a communication protection is with fire-retardant polyvinyl chloride pipe of low cigarette just in order to solve above-mentioned problem.

the utility model provides a communication protection is with fire-retardant polyvinyl chloride pipe of low cigarette, includes outer tube and fixed rand, and the inside cavity of outer tube has set gradually waterproof layer, low cigarette bittern polyethylene protective layer, polyvinyl chloride insulating layer, silvering steel band armor and lubricant film from outer to interior in the outer tube, the one end of outer tube is opened there is the slot, still is provided with the fixed block on the outer tube, the fixed block is located the global of slot, and inclined plane A is set to one side of fixed block, and the other end butt fusion of outer tube has the insert ring, and it has the fixed slot to open on the insert ring, and inclined plane B is set to one side of fixed slot, fixed block and fixed slot looks adaptation, and inclined plane A and inclined plane B looks adaptation, the lateral wall and the top of insert ring all inlay the sealing washer, and two outer tubes peg graft, and two sealing washer all butt outer tubes, the both ends of, the fixed clamping groove is matched with the fixed clamping block.

Preferably, the outer pipe and the insert ring are made of polyvinyl chloride, and the waterproof layer is made of resin.

Preferably, fixed rand is equipped with the opening, and both ends on the opening are provided with the fixed plate, are provided with the bolt on the fixed plate, and the one end threaded connection of bolt has the nut, and the opening part of fixed rand is fixed through the mating reaction of fixed plate, bolt and nut.

The utility model discloses an actively the effect as follows:

1. The utility model adopts the matching cooperation of the low-smoke halogen polyethylene protective layer and the silver-plated steel strip armor layer, when fire occurs, the low-smoke halogen polyethylene protective layer can effectively prevent flame from spreading, and has small smoke content, no halogen and environmental protection; the communication optical cable is wrapped inside the silver-plated steel strip armor layer, the rigidity of the pipeline can be increased through the silver-plated steel strip armor layer, direct contact between flame and the optical cable can be effectively isolated, and the optical cable is protected.

2. The utility model adopts the matching function of the slot and the insert ring and the matching function of the fixed clamping ring and the wear-resistant layer, two outer pipes are inserted, the insert ring of one outer pipe is inserted into the slot of the other outer pipe, the fixed block is inserted into the fixed slot, and the inclined plane A and the inclined plane B are butted simultaneously, because the inclined plane A and the inclined plane B are matched, the contact area is increased by the inclined plane, thereby the connection firmness is increased; after the two outer pipes are connected, the fixing clamping blocks of the fixing clamping ring are inserted into the fixing clamping grooves of the outer pipes, and the opening of the fixing clamping ring is sealed through the matching action of the bolt, the nut and the fixing plate, so that the connecting part of the two outer pipes can be firmly clamped by the fixing clamping ring; thereby realizing the firm connection of the two outer pipes.

3. The utility model discloses be provided with two sealing washers on the insert ring, can increase the leakproofness of two outer tube connections department during two outer tube connections, the outer tube inboard is provided with the waterproof layer simultaneously, can effectively improve the leakproofness of outer tube to effectively prevent the inside water intaking of outer tube, thereby influence the information transmission of optical cable.

Drawings

Fig. 1 is a schematic structural view of the middle and outer tube of the present invention.

Fig. 2 is a schematic view of a connection structure of two outer pipes.

fig. 3 is an enlarged view at Z in fig. 1.

Fig. 4 is an enlarged schematic view of fig. 2 at H.

Fig. 5 is a schematic view of the retainer collar when open.

Fig. 6 is a schematic structural view of the fixing clip when fixed.

In the figure: the outer tube comprises an outer tube 1, a fixing collar 2, a slot 3, a fixing block 4, an inserting ring 5, a fixing groove 6, a fixing ring 7, a fixing clamping groove 11, a waterproof layer 12, a low-smoke halogen polyethylene protective layer 13, a polyvinyl chloride insulating layer 14, a silver-plated steel strip armor layer 15, a lubricating layer 16, a fixing clamping block 21, a fixing plate 22, a bolt 23, a nut 24, an inclined plane A41 and an inclined plane B61.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a low-smoke flame-retardant polyvinyl chloride pipe for communication protection includes an outer pipe 1 and a fixing collar 2, the outer pipe 1 is hollow, a waterproof layer 12, a low-smoke halogen polyethylene protective layer 13, a polyvinyl chloride insulating layer 14, a silver-plated steel tape armor layer 15 and a lubricating layer 16 are sequentially arranged in the outer pipe 1 from outside to inside, the lubricating layer 16 can be made of talcum powder, and the lubricating layer 16 can increase lubricity and prevent an optical cable from being worn and damaged when the optical cable is pulled in the outer pipe 1; when a fire disaster happens, the low-smoke halogen polyethylene protective layer 13 can effectively prevent the flame from spreading, has small smoke content, is halogen-free and is environment-friendly; the communication optical cable is wrapped inside the silver-plated steel strip armor layer 15, and the silver-plated steel strip armor layer 15 can increase the rigidity of the outer pipe 1, effectively isolate direct contact between flame and the optical cable and protect the optical cable; one end of the outer pipe 1 is provided with a slot 3, the outer pipe 1 is further provided with a fixed block 4, the fixed block 4 is located on the circumferential surface of the slot 3, one side of the fixed block 4 is set to be an inclined plane A41, the other end of the outer pipe 1 is welded with an insert ring 5, the insert ring 5 is provided with a fixed groove 6, one side of the fixed groove 6 is set to be an inclined plane B61, the fixed block 4 is matched with the fixed groove 6, the inclined plane A41 is matched with the inclined plane B61, the side wall and the top end of the insert ring 5 are both inlaid with a sealing ring 51, the two outer pipes 1 are spliced, the insert ring 5 of one outer pipe 1 is inserted into the slot 3 of the other outer pipe 1, the fixed block 4 is inserted into the fixed groove 6, meanwhile, the inclined plane A41 and the inclined plane B61 are abutted, and the inclined plane A389; the two sealing rings 51 are abutted against the outer pipe 1, so that the sealing property of the joint of the two outer pipes is improved; the two ends of the outer tube 1 are respectively provided with a fixed clamping groove 11, the two ends of the fixed clamping ring 2 are respectively provided with a fixed clamping block 22, and the fixed clamping grooves 11 are matched with the fixed clamping blocks 21.

As a technical optimization scheme of the utility model, outer tube 1 and insert ring 5 and adopt the polyvinyl chloride material, waterproof layer 12 adopts the resin material, waterproof layer 12 effectively prevents that 1 inside of outer tube from intaking to influence the information transmission of optical cable.

As a technical optimization scheme of the utility model, fixed rand 2 is equipped with the opening, both ends on the opening are provided with fixed plate 22, be provided with bolt 23 on the fixed plate 22, a threaded connection of bolt 23 has nut 24, the opening part of fixed rand 2 is fixed through fixed plate 22, the cooperation of bolt 23 and nut 24, after two outer tubes 1 connect and accomplish, fixed fixture block 21 of fixed rand 2 inserts in fixed draw-in groove 11 of wearing layer 11, through the cooperation of bolt 23, nut 24 and fixed plate 22, seal the opening of fixed rand 7, make the junction that can firmly block two outer tubes 1 of fixed rand 7; thereby achieving a firm connection of the two outer pipes 1.

When the utility model is used, firstly, the inserting ring 5 of one outer tube 1 is inserted into the slot 3 of the other outer tube 1, the fixing block 4 is inserted into the fixing slot 6, and meanwhile, the inclined plane A41 and the inclined plane B61 are butted, because the inclined plane A41 and the inclined plane B61 are matched, the contact area of the inclined plane is increased, so that the connection firmness is increased, and meanwhile, the two sealing rings 51 on the inserting ring 5 can be butted against the other outer tube 1; after the two outer pipes 1 are connected, the fixing fixture blocks 21 of the fixing clamping ring 2 are inserted into the fixing clamp grooves 11 of the outer pipes 1, and the opening of the fixing clamping ring 7 is sealed through the matching action of the bolts 23, the nuts 24 and the fixing plates 22, so that the fixing clamping ring 7 can firmly clamp the connection part of the two outer pipes 1; thereby realizing the firm connection of the two outer pipes 1;

When a fire disaster occurs, the low-smoke halogen polyethylene protective layer 13 can effectively prevent flame from spreading, and has small smoke content, no halogen and environmental protection; the communication optical cable is wrapped inside the silver-plated steel strip armor layer 15, and the silver-plated steel strip armor layer 15 can increase the rigidity of the outer pipe 1, effectively isolate direct contact between flame and the optical cable and protect the optical cable;

the two sealing rings 51 and the waterproof layer 12 improve the sealing performance of the outer tube 1, and effectively prevent water from entering the inner part of the outer tube 1, thereby influencing the information transmission of the optical cable.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. The utility model provides a communication protection is with fire-retardant polyvinyl chloride pipe of low cigarette, which is characterized in that, includes outer tube (1) and fixed rand (2), the inside cavity of outer tube (1), has set gradually waterproof layer (12), low cigarette steamed polyethylene protective layer (13), polyvinyl chloride insulating layer (14), silvering steel band armor (15) and lubricating layer (16) from outer to interior in outer tube (1), slot (3) have been opened to the one end of outer tube (1), still is provided with fixed block (4) on outer tube (1), fixed block (4) are located the global of slot (3), and one side of fixed block (4) is set to inclined plane A (41), and the other end fusion of outer tube (1) has connect has insert ring (5), and it has fixed slot (6) to open on insert ring (5), and one side of fixed slot (6) is set to inclined plane B (61), and fixed block (4) and fixed slot (6) looks adaptation, inclined plane A (41) and inclined plane B (61) looks adaptation, seal ring (51) are all installed on the lateral wall and the top of inserting ring (5), and two outer tubes (1) are pegged graft, and two equal butt outer tubes (1) of seal ring (51), fixed slot (11) have been opened respectively at the both ends of outer tube (1), the both ends of fixed rand (2) are provided with fixed fixture block (21), fixed slot (11) and fixed fixture block (21) looks adaptation respectively.

2. The low-smoke flame-retardant polyvinyl chloride pipe for communication protection according to claim 1, characterized in that: the outer pipe (1) and the insert ring (5) are made of polyvinyl chloride, and the waterproof layer (12) is made of resin.

3. The low-smoke flame-retardant polyvinyl chloride pipe for communication protection according to claim 1, characterized in that: fixing rand (2) are equipped with the opening, and both ends on the opening are provided with fixed plate (22), are provided with bolt (23) on fixed plate (22), and the one end threaded connection of bolt (23) has nut (24), and the opening part of fixing rand (2) is fixed through the mating reaction of fixed plate (22), bolt (23) and nut (24).