CN217027906U

CN217027906U - Cable shaft fire resistive construction

Info

Publication number: CN217027906U
Application number: CN202220255252.9U
Authority: CN
Inventors: 刘永亮
Original assignee: Beijing Jingdian Fengsheng Construction Co ltd
Current assignee: Beijing Jingdian Fengsheng Construction Co ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-07-22
Anticipated expiration: 2032-02-08

Abstract

The application discloses cable shaft fire resistive construction relates to cable shaft technical field, and to the block structure in the current cable shaft simple structure, fire behavior is lower, has the problem of potential safety hazard, now proposes following scheme, and it is including seting up the well body in the wall body is inside, the well body runs through the wall body, the wall body lateral wall is equipped with the floor that is evenly distributed, the internal portion lateral wall fixed mounting of well has the crane span structure, the internal portion fixed mounting of crane span structure has the cable that a plurality of structures are the same, the internal portion lateral wall fixed mounting of crane span structure has the block structure that is evenly distributed, block structure is corresponding the setting and is located same horizontal plane with the floor, wall body lateral wall sets up the inspection opening that is evenly distributed. The application can improve the overall fireproof performance of the cable and the cable well, meanwhile, the fire resistance of the blocking structure is enhanced, the fire is controlled in one area when fire occurs, the fire is prevented from spreading, and the purposes of fire prevention and disaster reduction are achieved.

Description

Cable shaft fire resistive construction

Technical Field

The application relates to cable shaft technical field especially relates to a cable shaft fire resistive construction.

Background

A cable well is a vertical passage for a high-rise building to run vertically a power supply cable or a communication cable. Like the elevator shaft, strong and weak currents are generally laid separately. Generally separated on both sides of the elevator shaft or staircase. In the vertical shaft, various circuit laying modes such as cables, cable bridges, metal wire grooves, metal pipes, closed bus ducts and the like can be used. In any case, the cable or the pipeline is fixed on the vertical wall by a bracket and a fixture, and the cable or the pipeline is fixed very firmly by considering the action of gravity.

The cable burns in the well body, if do not block, just like a little chimney in the crane span structure, can accelerate spreading of intensity of a fire and toxic gas, in case of the conflagration, because of the cable sheath is fire-retardant, the intensity of a fire can upwards spread along the cable that burns, and the heat increases progressively from bottom to top, increases to the degree of blasting very easily. The plugging structure in the existing cable well is simple, the fireproof performance is low, great potential safety hazards exist, and the aims of fire prevention and disaster reduction cannot be effectively fulfilled. Therefore, in order to solve such problems, we propose a cable well fire-proof structure.

SUMMERY OF THE UTILITY MODEL

The application provides a cable shaft fire resistive construction, has solved the simple structure of shutoff in the current cable shaft, and fire behavior is lower, has the problem of potential safety hazard.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a cable well fireproof structure comprises a well body arranged inside a wall body, wherein the well body penetrates through the wall body, uniformly distributed floor slabs are arranged on the side wall of the wall body, a bridge frame is fixedly arranged on the side wall inside the well body, a plurality of cables with the same structure are fixedly arranged inside the bridge frame, uniformly distributed plugging structures are fixedly arranged on the side wall inside the bridge frame, and the plugging structures and the floor slabs are arranged correspondingly and are positioned on the same horizontal plane; the plugging structure comprises a support, the support is fixedly installed on the inner side wall of the bridge frame, a fire-resistant partition plate is fixedly installed at the bottom end of the support, a steel plate is fixedly installed at the top end of the support, and fire-resistant mud is filled in the inner cavity of the support.

By adopting the technical scheme, the plugging structure enables the well body to be arranged into the uniform partition areas, each partition area corresponds to one floor slab, and the fire behavior can be controlled in the partition areas when a fire occurs, so that the aims of preventing fire and reducing the disaster of the well body are fulfilled. The support is convenient for fix at the inside lateral wall of crane span structure, can play the supporting role to fire-resistant baffle, steel sheet and fire prevention mud, and fire-resistant baffle, steel sheet and fire prevention mud all have fire behavior, can stop intensity of a fire and heat to upwards stretch and increase progressively.

Preferably, the side wall of the wall body is provided with uniformly distributed inspection ports, and the inspection ports are located between two adjacent floor slabs.

By adopting the technical scheme, the inspection opening can conveniently and regularly inspect the cable in the well body, and the purpose of preventing the trouble in advance is achieved.

Preferably, fire-resistant baffle bottom four corners and steel sheet top four corners all are equipped with the screw, screw tip and support fixed connection, the cable runs through support, fire-resistant baffle, steel sheet and fire prevention mud.

Through adopting above-mentioned technical scheme, the screw can be connected on the stand of support, is convenient for to the fixed mounting of fire-resistant baffle, steel sheet.

Preferably, the cable includes the cable main part, the coating of cable main part circumference lateral wall has fire prevention coating, the outside fixed cover of fire prevention coating is equipped with the steel wire that is helical structure.

Through adopting above-mentioned technical scheme, paint fire prevention coating in cable main part, can prolong cable main part's life, improve the fire behavior of cable self, prevent that the intensity that the steel wire can strengthen cable main part that the intensity upwards stretchs along the cable of burning.

Preferably, the inspection opening penetrates through the side wall of the bridge frame, an inspection door is rotatably installed on the inspection opening, and the inspection door is made of a class-C fireproof door.

Through adopting above-mentioned technical scheme, the inspection door can be opened and closed, and the staff of being convenient for inspects the inside cable of crane span structure, prevents that flame and smog that the fire produced from leaking and cause resident to produce the injures and deaths in the corridor.

Preferably, fireproof blocking materials are filled between the side wall inside the well body and the side wall of the bridge, a fireproof plate is fixedly mounted on the inspection door close to the side wall of the bridge, and the fireproof plate and the fireproof blocking materials are both made of light expansion type organic blocking materials.

Through adopting above-mentioned technical scheme, the fire prevention putty is filled at the internal portion lateral wall of well, can improve the holistic fire behavior of well, and flame spread to the external portion of well when preventing to catch fire.

The beneficial effect of this application does:

1. the staff regularly opens the inspection door, observes the internal condition of well on every floor through the inspection opening, and whether damage appears in inspection cable and the block structure, can investigate and eliminate the risk of catching a fire, accomplishes to prevent and meets the precaution in the bud.

2. Through setting up block structure, upper and lower two-layer block structure controls the intensity of a fire in the inside subregion of crane span structure, and the intensity of a fire can't upwards stretch along the cable of burning, and fire prevention putty and inspection door also block flame and stretch to the wall body outside, reduce the fire loss.

In conclusion, the fireproof performance of the cable and the whole cable well can be improved, the fireproof performance of the plugging structure is enhanced, the fire is controlled in one area when a fire happens, the fire is prevented from spreading, and the purposes of fire prevention and disaster reduction are achieved.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a cross-sectional view of the present application;

FIG. 3 is an exploded view of the closure structure of the present application;

fig. 4 is a cross-sectional view of a cable of the present application.

Reference numbers in the figures: 1. a wall body; 2. a floor slab; 3. a well body; 4. fireproof blocking; 5. a bridge frame; 6. a blocking structure; 601. a support; 602. a refractory partition; 603. a steel plate; 605. fire-proof mud; 604. a screw; 7. a cable; 701. a cable main body; 702. a fire retardant coating; 703. a steel wire; 8. an inspection opening; 9. an inspection door; 10. a fire protection plate.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments.

The embodiment is as follows:

referring to fig. 1, a cable shaft fire resistive construction, including seting up in the 1 inside well body 3 of wall body, the well body 3 runs through wall body 1, 1 lateral wall of wall body is equipped with floor 2 that is evenly distributed, 3 inside lateral wall fixed mounting of well body has

crane span structure

5, 5 inside fixed mounting of crane span structure has the same cable 7 of a plurality of structures, 1 lateral wall of wall body has been seted up and has been evenly distributed's inspection opening 8, inspection opening 8 is located between two adjacent floor 2, it has fire prevention putty 4 to fill between 3 inside lateral walls of well body and the 5 lateral walls of crane span structure, can improve 3 holistic fire behavior of well body, flame stretches to 3 outsides of well body and causes resident to produce the injures and deaths in the corridor when preventing catching fire.

Inspection door 9 is close to 5 lateral walls fixed mounting of crane span structure has PLASTIC LAMINATED 10, inspection opening 8 runs through the lateral wall of crane span structure 5, inspection opening 8 rotates and installs inspection door 9, the material of inspection door 9 prevents fire door for third grade, inspection opening 8 can be opened and closed to inspection door 9, convenient regular cable 7 to the well body 3 in carries out the inspection to 5 inside cables 7 of crane span structure, accomplish to prevent taking precautions against in advance, PLASTIC LAMINATED 10 is the expanded organic putty of light with the material of fire prevention putty 4.

Referring to fig. 2-3, the inner side wall of the bridge frame 5 is fixedly provided with plugging structures 6 which are uniformly distributed, the plugging structures 6 are arranged corresponding to the floor slabs 2 and located on the same horizontal plane, the well body 3 is arranged into uniform partition areas by the plugging structures 6, so that each partition area corresponds to one floor slab 2, when a fire occurs, the fire can be controlled in the partition area, and the purposes of fire prevention and disaster reduction of the well body 3 are achieved, wherein each plugging structure 6 comprises a support 601. Support 601 fixed mounting has fire-resistant baffle 602 in the inside lateral wall of crane span structure 5, support 601 bottom fixed mounting, and support 601 top fixed mounting has steel sheet 603, and support 601 inner chamber is filled with fire prevention mud 605.

Support 601 is convenient for fix at the inside lateral wall of crane span structure 5, can be to fire barrier 602, steel sheet 603 and fire prevention mud 605 play the supporting role, fire barrier 602, steel sheet 603 and fire prevention mud 605 all have fire behavior, can block intensity of a fire and heat upwards stretch and increase progressively, fire barrier 602 bottom four corners and steel sheet 603 top four corners all are equipped with screw 604, screw 604 tip and support 601 fixed connection, cable 7 runs through support 601, fire barrier 602, steel sheet 603 and fire prevention mud 605.

Referring to fig. 4, cable 7 includes cable body 701, and cable body 701 circumference lateral wall has fireproof paint 702, can prolong cable body 701's life, improves cable 7 self fire behavior, prevents that the intensity of a fire from upwards spreading along the cable of burning, and the outside fixed cover of fireproof paint 702 is equipped with steel wire 703 that is helical structure, and steel wire 703 can strengthen cable body 701's intensity.

The implementation principle of a cable shaft fire resistive construction of this application embodiment does:

when using this cable shaft, arrange the staff and regularly open inspection door 9, observe the condition in the well body 3 on every floor 2 through inspection opening 8, whether damage appears in inspection cable 7 and block structure 6, the investigation and eliminate the risk of starting a fire, after catching a fire in the well body 3, upper and lower two-layer block structure 6 is with the intensity of a fire control in the inside subregion of crane span structure 5, the intensity of a fire can't upwards stretch along the cable 7 that burns, fire prevention putty 4 also blocks flame and outwards stretches wall body 1 with inspection door 9, reduce the loss of fire, realize the purpose of fire prevention, reduce the calamity, wait for the fire fighter to put out a fire after accomplishing, maintain in the well body 3 through inspection opening 8, reduce the cost of maintenance of cable shaft.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present application in the scope of the present application.

Claims

1. The cable well fireproof structure comprises a well body (3) arranged inside a wall body (1), and is characterized in that the well body (3) penetrates through the wall body (1), floors (2) which are uniformly distributed are arranged on the side wall of the wall body (1), a bridge (5) is fixedly arranged on the side wall inside the well body (3), a plurality of cables (7) which are identical in structure are fixedly arranged inside the bridge (5), plugging structures (6) which are uniformly distributed are fixedly arranged on the side wall inside the bridge (5), and the plugging structures (6) are arranged correspondingly to the floors (2) and are positioned on the same horizontal plane; the blocking structure (6) comprises a support (601), the support (601) is fixedly installed on the inner side wall of the bridge (5), a fire-resistant partition plate (602) is fixedly installed at the bottom end of the support (601), a steel plate (603) is fixedly installed at the top end of the support (601), and fire-resistant mud (605) is filled in the inner cavity of the support (601).

2. The cable well fire protection structure according to claim 1, wherein the side wall of the wall body (1) is provided with uniformly distributed inspection openings (8), and the inspection openings (8) are located between two adjacent floor slabs (2).

3. The cable well fire protection structure according to claim 1, wherein screws (604) are arranged at four corners of the bottom end of the fire-resistant partition (602) and four corners of the top end of the steel plate (603), the ends of the screws (604) are fixedly connected with the support (601), and the cable (7) penetrates through the support (601), the fire-resistant partition (602), the steel plate (603) and the fire-resistant mud (605).

4. A fire protection structure for a cable well according to claim 1, wherein the cable (7) comprises a cable main body (701), the circumferential side wall of the cable main body (701) is coated with a fire protection coating (702), and the fire protection coating (702) is externally and fixedly sleeved with a steel wire (703) in a spiral structure.

5. A cable well fire protection structure according to claim 2, wherein the inspection opening (8) penetrates through a side wall of the bridge (5), the inspection opening (8) is rotatably provided with an inspection door (9), and the inspection door (9) is made of class-c fireproof door.

6. The cable well fire protection architecture as claimed in claim 5, wherein a fire protection block (4) is filled between the inner side wall of the well body (3) and the side wall of the bridge (5), a fire protection plate (10) is fixedly installed on the inspection door (9) close to the side wall of the bridge (5), and the fire protection plate (10) and the fire protection block (4) are both made of light expansion type organic blocks.