CN111677941A

CN111677941A - Fire water system branch pipe assembly type pre-buried structure and method

Info

Publication number: CN111677941A
Application number: CN202010477890.0A
Authority: CN
Inventors: 朱文飚; 徐烨
Original assignee: Zhu Yincheng
Current assignee: Zhu Yincheng
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-09-18

Abstract

The invention discloses an assembled pre-buried structure and method for branch pipes of a fire water system, wherein a sleeve (2) and a junction box (3) are pre-buried in a prefabricated slab (1), the junction box (3) is positioned at two ends of the prefabricated slab, the sleeve (2) is communicated with the junction box (3), branch pipes (4) of the fire water system are arranged in the sleeve (2), and a spray head is arranged in the junction box (3) by connecting two branch pipes (4) of the fire water system through a tee. Adopt double-deck pre-buried mode, pre-buried sleeve pipe then inserts fire water system branch pipe earlier, even damage appears in the pipeline like this, also can take out the pipeline and change the new water pipe, solved the difficult problem of pre-buried water pipe maintenance.

Description

Fire water system branch pipe assembly type pre-buried structure and method

Technical Field

The invention relates to the field of fire fighting construction, in particular to a pre-buried structure of a fire fighting water system branch pipe.

Background

At present, because domestic fire fighting is not assembled, unified design, standard construction and management are not realized, the pipeline arrangement is different, the construction problem is more, the collision is more, and the installation belongs to the low efficiency of high altitude construction, potential safety hazard. With regard to technical process analysis, adopt the pre-buried pipeline of assembled, it is efficient, the unified standard of installation quality reduces pre-buried mistake worker and waves worker, but has two factors that restrict fire pipeline pre-buried at present: 1. the design is not standardized, and the distances among all spraying points are different, so that prefabrication is difficult. 2. If the pre-buried water pipe is broken and leaked, the maintenance is difficult. The first problem can be solved by the published patent (application No. 202010023786.4), and the technology is used for standardizing the distance between the spraying nodes and determining the positions of the spraying nodes, so that the fire hose embedding possibility is realized.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the problem of the pre-buried pipe fitting of assembled can't be realized to present fire pipeline construction provides a new pre-buried structure.

The technical scheme of the invention is as follows:

the utility model provides a pre-buried structure of fire water system branch pipe assembled, includes the prefabricated plate, pre-buried sleeve pipe and terminal box in the prefabricated plate, and the terminal box is located the prefabricated plate both ends, sleeve pipe and terminal box intercommunication, and fire water system branch pipe is installed in the sleeve pipe, with two fire water system branch pipes of tee junction and installation shower head in the terminal box.

When a spray head cannot be installed at a preset position at a position where a ceiling is decorated, the spray head can be connected with a tee joint through a hose to bypass the position of the ceiling, or the spray head is connected with a junction box tee joint to perform downward spraying, and a heat collecting plate is additionally arranged.

The branch pipe of the fire water system is a PVC-C pipe.

The prefabricated plate and the fire water system branch pipe are both standard lengths.

Two terminal boxes are spliced into a wiring space after the two prefabricated plates are spliced, and the space size meets the requirement that the fire water system branch pipe can be inserted into the sleeve pipe under the condition of no plastic deformation.

The junction box is a six-sided box lacking an upper surface and one side.

The junction box can also be a six-sided box body with the upper surface, the lower surface and one side surface missing, and the sleeve is pre-embedded on the central axis of the prefabricated slab in the length direction.

An assembly type pre-embedding method for branch pipes of a fire water system is characterized by comprising the following steps:

optimizing a design drawing, and adjusting the position of each spraying node on a pipeline to enable the distance between two adjacent nodes to be a standard distance;

b prefabricating a prefabricated panel according to claim 5;

c, assembling the precast slabs;

d, inserting the branch pipe of the fire fighting water system and installing a tee.

The prefabricated slab adopts cast-in-place, steel bars are embedded in the prefabricated slab, and a sleeve and a junction box are arranged according to intervals and adopt an integrated seamless structure

The invention has the beneficial effects that:

adopt double-deck pre-buried mode, pre-buried sleeve pipe then inserts fire water system branch pipe earlier, even damage appears in the pipeline like this, also can take out the pipeline and change the new water pipe, solved the difficult problem of pre-buried water pipe maintenance.

The assembly type pre-buried pipeline is adopted, the efficiency is high, the installation quality is unified and standard, pre-buried malfunction wave work and collision are reduced, the post-assembly type standardized construction is efficient and rapid, the construction period is short, and the development prospect is wide.

At present, the invention advocates a building assembly type in China, and the invention meets the requirement of pre-embedding fire-fighting water pipelines when the concrete wall top ground factory is prefabricated, thereby improving the assembly utilization rate. For the position that has the fitment furred ceiling, can be totally according to 3 meters unified spacing branch pipes pre-buried, can neglect the accuracy, spout down and adopt the hose adjustment in 1.8 meters to compensate distance error. The pre-embedding process can be applied to prefabrication of an assembly type building factory and can also be applied to a process of pre-embedding and pouring concrete on site.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of fig. one.

FIG. 3 is a schematic structural diagram of two prefabricated panels after splicing.

Fig. 4 is a schematic structural view of embodiment 2.

Detailed Description

Example 1:

firstly, a drawing is required to be modified, spraying nodes are adjusted, all the spraying nodes on branch lines are adjusted to be standard pitches, pre-buried conditions are provided after the pitches are unified, a prefabricated plate 1 can be manufactured in a factory, the structure of the prefabricated plate 1 is as shown in figures 1 and 2, a sleeve 2 and a junction box 3 are pre-buried in the prefabricated plate 1, the sleeve 2 and the junction box 3 are located in the longitudinal center and the transverse center of the prefabricated plate and higher than the center of the thickness of the prefabricated plate in the thickness direction, the two ends of the sleeve 2 are respectively connected with the junction box 3, the sleeve 2 and the junction box 3 are integrally manufactured by plastics, cement can be prevented from being poured into the prefabricated plate 1 or pouring after a tee joint and a pipe are connected before pre-burying, the junction boxes 3 are arranged at the two ends after the prefabricated plate 1 is formed, a concave wiring space is formed by two adjacent junction boxes 3 after the, the fire fighting water system branch pipe 4 is a chlorinated polyvinyl chloride (PVC-C) pipe, which can be elastically bent within a certain range to be inserted into or taken out of the casing 2. The lengths of the fire water system branch pipes 4 and the prefabricated plates 1 are standard lengths, one fire water system branch pipe 4 is installed in each prefabricated plate 1, two adjacent branch pipes are connected through a tee joint, the other end of the tee joint is used for installing a spray head, the design specification GB50084-2017 latest version 8.0.4 water distribution pipeline can adopt a 1.8m water spraying hose to be connected with the spray head, the position with a suspended ceiling can be connected through a hose, the requirement of randomly adjusting the position of the spray head in collision of equipment on the top surface of the suspended ceiling and the like is met, the requirement of randomly adjusting the position of the spray head after the suspended ceiling is changed in secondary decoration is met, and secondary reconstruction cost is saved. The process saves a support and a hanging bracket, improves the efficiency by operating the platform without high-altitude operation, saves the clearance height, improves the construction period, reduces collision of multiple specialties, meets the assembly process, reduces the hole plugging, the residence or the door surface and the like, can save a suspended ceiling, is suitable for hotel office places to avoid collision, improves the clearance and the like, and adds a filter in front of all the assembly type embedded pipelines to protect the service life of the system.

Example 2:

referring to fig. 4, the present embodiment is different from embodiment 1 in that the sleeve 2 and the junction box 3 are located on the central axis of the prefabricated slab, and are symmetrical in the upper, lower, left, right, front and rear directions, so that the junction box 3 is a box body lacking the upper, lower, outer and outer surfaces. The advantage of this kind of structure is prefabricated plate 1 need not divide the positive and negative, further improves the convenience of assembly.

Example 3:

the difference between this embodiment and embodiment 1 is that the prefabricated slab 1 is cast in place, the whole layer is cast, the steel bars are arranged in advance, the embedded sleeves 2 and the junction boxes 3 are arranged at the bottom according to the standard spacing, the sleeves 2 and the junction boxes 3 are integrally connected to prevent the infiltration of cement for a seamless structure, and further, the junction boxes 3 can be designed to be closed and cut after the casting is completed.

Claims

1. The utility model provides a pre-buried structure of fire water system branch pipe assembled, includes prefabricated plate (1), its characterized in that: pre-buried sleeve pipe (2) and terminal box (3) in prefabricated plate (1), terminal box (3) are located the prefabricated plate both ends, sleeve pipe (2) and terminal box (3) intercommunication, and fire water system branch pipe (4) are installed in sleeve pipe (2), and with two fire water system branch pipes (4) of tee junction and installation shower head in terminal box (3).

2. The fire water system branch pipe assembled pre-buried structure of claim 1, characterized in that: the spray header can be connected with a tee joint through a hose.

3. The fire water system branch pipe assembled pre-buried structure of claim 1, characterized in that: the fire water system branch pipe assembled pre-buried structure of claim 1, characterized in that: the fire water system branch pipe (4) is a PVC-C pipe.

4. The fire water system branch pipe assembled pre-buried structure of claim 1, characterized in that: the prefabricated plate (1) and the fire water system branch pipe (4) are both standard lengths.

5. The fire water system branch pipe assembled pre-buried structure of claim 3, characterized in that: two terminal boxes (3) are spliced into a wiring space after two precast slabs (1) are spliced, and the space size satisfies that fire water system branch pipe (4) can insert sleeve pipe (2) under the condition of not taking place moulding deformation.

6. The fire water system branch pipe assembly type embedded structure according to any one of claims 1-5, wherein: the junction box (3) is a six-sided box body lacking an upper surface and one side surface.

7. The fire water system branch pipe assembly type embedded structure according to any one of claims 1-5, wherein: the junction box (3) is a six-sided box body lacking an upper surface, a lower surface and one side surface.

8. The fire water system branch pipe assembled pre-buried structure of claim 7, characterized in that: the sleeve (2) is pre-embedded on the central axis of the prefabricated slab (1) in the length direction.

9. An assembly type pre-embedding method for branch pipes of a fire water system is characterized by comprising the following steps:

b prefabricating a prefabricated panel (1) according to claim 5;

c, assembling the precast slab (1);

d, inserting the branch pipe (4) of the fire water system and installing a tee.

10. The fire water system branch pipe assembly type embedding method according to claim 9, characterized in that: the prefabricated slab (1) adopts cast-in-place, steel bars are embedded, the sleeve (2) and the junction box (3) are arranged according to intervals, and the sleeve (2) and the junction box (3) adopt an integrated seamless structure.