CN-224228552-U - Invisible fireproof door for piping shaft

CN224228552UCN 224228552 UCN224228552 UCN 224228552UCN-224228552-U

Abstract

An invisible fire door for a piping shaft. The decorative pipeline well fireproof door for high-end houses, hotels and the like in the current market is formed by respectively processing and manufacturing two types of door types, the two types of door types are needed to be realized, the manufacturing cost is increased, the installation process of installation personnel is more difficult than that of a common door type, and the pipeline well fireproof door inside the door cannot be completely opened due to the addition of the decorative door, so that inconvenience is brought to inspection and maintenance of the pipeline well. For this reason, there is an urgent need for a hidden piping fire door to fill the market gap. The utility model comprises a door frame, a door leaf and an outer decoration panel, wherein the door frame is connected with the door leaf through a multi-angle rotary hinge, the outer decoration panel is fixed on the door leaf through a steel L-shaped corner connector, and an invisible pull ring handle is arranged outside the outer decoration panel. The utility model is used for the invisible piping shaft fireproof door.

Inventors

XIN FUCHENG
ZHANG LILONG

Assignees

哈尔滨鑫成门业有限公司

Dates

Publication Date: 20260512
Application Date: 20250523

Claims (4)

1. A hidden pipeline well fireproof door is characterized by comprising a door frame, a door leaf and an outer decoration panel, wherein the door frame is connected with the door leaf through a multi-angle rotary hinge, the outer decoration panel is fixed on the door leaf through a steel L-shaped corner connector, and a hidden pull ring handle is arranged outside the outer decoration panel.
2. The invisible conduit well fireproof door according to claim 1, wherein the multi-angle rotary hinge comprises two door frame L-shaped supports, a door leaf L-shaped support, two door frame support arms and a door leaf support arm, wherein each door frame L-shaped support is fixed on a door frame through a screw, one end of each door frame support arm is rotationally connected with the door frame L-shaped support through a rotating shaft bolt, the other end of each door frame support arm is sleeved on an upper rotating shaft bolt and a lower rotating shaft bolt and is rotationally connected with steel sleeves with tapping at two ends, one end of each door leaf support arm is rotationally connected with the door leaf L-shaped support through the rotating shaft bolt, and the other end of each door leaf support arm is welded on the steel sleeves.
3. The invisible piping shaft fireproof door as claimed in claim 2, wherein the door frame and the door leaf are provided with fireproof expansion sealing strips at the lap joint.
4. A hidden pipeline well fireproof door as claimed in claim 3, wherein the other side of the door leaf is provided with two fireproof lock bolts.

Description

Invisible fireproof door for piping shaft Technical Field The utility model relates to a fireproof door for an invisible piping shaft. Background The fire door for the decorative pipeline well of the high-end residence, the hotel and the like in the current market is manufactured by respectively processing two doors, firstly, a common pipeline well door meeting the requirements of national standard GB12955-2008 fire door is firstly installed in a pipeline well opening, and secondly, a decorative door is additionally arranged on the outer side of the pipeline well door, and the decorative door is only used for decorative effect. The decorative door adopts a square tube welding mode, square tubes are welded around the door leaf, square tube supporting ribs are added in the middle of the square tubes, external decorative materials are added in other hollowed-out positions, and the decorative door is integrated with the whole wall after decoration, so that the sensory effect is good. However, the method needs two door types, so that the manufacturing cost is increased, the installation personnel are difficult to install compared with the common door types, and the inside fireproof door of the pipeline well cannot be completely opened due to the addition of the decorative door, so that inconvenience is brought to inspection and maintenance of the pipeline well. For this reason, there is an urgent need for a hidden piping fire door to fill the market gap. Disclosure of utility model The utility model aims to solve the problems and provide a hidden pipeline well fireproof door. The above object is achieved by the following technical scheme: The invisible conduit well fireproof door comprises a door frame, a door leaf and an outer decoration panel, wherein the door frame is connected with the door leaf through a multi-angle rotary hinge, the outer decoration panel is fixed on the door leaf through a steel L-shaped corner connector, and an invisible pull ring handle is arranged outside the outer decoration panel. A stealthy piping shaft prevent fire door, multi-angle swivel hinge include two door frame L type supports, a door leaf L type support, two door frame support arms and a door leaf support arm, every door frame L type support all pass through the fix with screw on the door frame, every door frame support arm's one end and door frame L type support pass through pivot bolt rotation to be connected, another pot head is connected with the steel sleeve rotation of both ends tapping on upper and lower pivot bolt, door leaf support arm's one end and door leaf L type support pass through pivot bolt rotation to be connected, the other end welding is on the steel sleeve. The hidden pipeline well fireproof door is characterized in that a fireproof expansion sealing strip is arranged at the lap joint of the door frame and the door leaf. The invisible conduit well fireproof door is characterized in that two fireproof lock tongues are arranged on the other side of the door leaf. Advantageous effects 1. The door frame and the door leaf are connected through the multi-angle rotary hinge, the multi-point rotary function can realize that the opening angle of the door body is 180 degrees, the operable space is large enough when the door body is opened for overhauling by 180 degrees, and the construction space of workers during construction operation is met. 2. When the door leaf is closed, the external pasting decorative plate and the wall decorative plate are integrated into a whole, so that the invisible effect is achieved. 3. According to the utility model, the door leaf is internally filled with the composite fireproof door core plate, and the lap joint of the door frame and the door leaf is provided with the outer wrapping type fireproof expansion sealing strip without broken ends at the periphery, so that the fireproof performance can stably meet the requirements of GB12955-2008 on the fireproof door of the pipeline well under the condition of ensuring the higher integral rigidity and strength of the door. Drawings FIG. 1 is a front view (outer decorative surface) of the present utility model; FIG. 2 is a front elevational view of the uninstalled trim panel; FIG. 3 is a cross-sectional view A-A of FIG. 1; FIG. 4 is a section B-B of FIG. 1; FIG. 5 is a cross-sectional view of C-C of FIG. 1; FIG. 6 is a visual surface effect of the utility model when 180 is opened; FIG. 7 is a transverse cross-sectional view of the present utility model with the transverse cross-section open 180; FIG. 8 is an external view of the hidden tab 1; FIG. 9 is a block diagram of a multi-angle rotation controllable hinge; Fig. 10 is an explanatory view showing a process of opening the door leaf from the closed state to the opening angle of 180 °; Fig. 11 is a three-dimensional perspective view of a door leaf opened 180 °; The fireproof door comprises a pull handle with hidden pull rings, an external decoration panel, a fireproof lock with 3 and a