Middle-opening type fireproof landing door
By using a center-part fire-resistant door design, and employing independently processed sealing components and metal sheet bending forming, the problems of cumbersome manufacturing and low yield rate of traditional fire-resistant doors are solved, achieving simple manufacturing and efficient fire protection.
Patent Information
- Application Number
- CN202423119018.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Traditional fire-resistant doors are complicated to manufacture, have a low yield rate, and suffer from interference when opening.
It adopts a center-part design, using a left-layer door panel, a right-layer door panel, a left-door frame pillar, and a right-door frame pillar. A middle blocking component, a side blocking component, an upper baffle, and a lower baffle are set between the door panels. Each sealing component is independently processed and installed, and is made of bent metal sheet, which is compatible with a variety of door panel styles.
It simplifies the manufacturing process, improves production efficiency and yield, is suitable for conventional door panel types, is compatible with a variety of door panel materials, and achieves better fire resistance and safety levels.
Smart Images

Figure CN223561067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an improvement of elevator door structure, in particular to a middle-split fire resistance layer door. BACKGROUND
[0002] The layer door of an elevator is a kind of openable and closable structure for isolating elevator shaft and building interior space, so the layer door of fireproof elevator also needs to have the function of isolating fire environment, and the traditional fire resistance door is different from the edge folding mode of conventional door panel due to the edge closure requirement, and the precision of door edge matching also needs to be noticed, otherwise there will be the problem of door opening interference, and the production is relatively complicated, and the yield is relatively low, so the door structure needs to be improved to make it more convenient to process. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned deficiencies in the prior art, and provides a middle-split fire resistance layer door.
[0004] The utility model provides a technical scheme that solves the above-mentioned problems: the fire resistance layer door includes left layer door plate, right layer door plate, left door sleeve column, right door sleeve column, the left layer door plate and the right layer door plate are mutually matched and are translated to realize door opening, the left side of the left layer door plate is provided with the left door sleeve column as part of the door frame, the right side of the right layer door plate is correspondingly provided with the door sleeve column, the middle blocking piece is arranged between the left layer door plate and the right layer door plate, the side edge blocking piece is arranged between the left door sleeve column and the left layer door plate and between the right door sleeve and the right layer door plate, the upper portion of the left layer door plate and the right layer door plate is further provided with the upper baffle, and the lower portion is provided with the lower baffle. The design is a kind of middle door form elevator door structure, and the door plate structure is the conventional form, the door plate itself is formed and does not need special processing, different blocking structures are arranged on the edge of the door plate, the gap of corresponding side edge is closed, each closing piece can be individually processed and is installed separately, processing and manufacturing are convenient, and production efficiency is improved.
[0005] Further, the middle blocking piece, the side edge blocking piece, the upper baffle and the lower baffle are all formed by bending sheet material, and at least include a fixed plate and a blocking plate, wherein the fixed plate part is fixedly installed on the left layer door plate or the right layer door plate by bonding, welding or screw fixing. All are formed by bending metal sheet, convenient to process, different fixing modes can be selected according to the material, thickness and other factors of the door plate, processing is convenient, and can adapt to various door plate forms.
[0006] Further, the intermediate blocking piece comprises a left intermediate baffle and a right intermediate baffle, the left intermediate baffle has a recessed side edge arranged inwardly relative to the edge of the left door panel, and the right intermediate baffle has an outward convex side edge arranged outwardly relative to the edge of the right door panel and close to the recessed side edge.
[0007] Further, the side edge blocking piece and the upper baffle adopt the same structure, wherein the side edge blocking piece is arranged on both sides of the door, the blocking plate of the side edge blocking piece is inserted and attached to the open side edge of the left door sleeve column and the right door sleeve column, and the blocking plate of the upper baffle is inserted and attached to the open side edge of the door sleeve beam.
[0008] Further, the lower baffle further has a middle extension edge, the middle extension edge extends the blocking plate to the middle of the door panel, and the blocking plate of the lower baffle is inserted into the groove space of the threshold.
[0009] Compared with the prior art, the utility model has the following advantages and effects: the design is an improvement of the fireproof form of the layer door structure of the elevator, the structure can be installed by using conventional door panels, and the manufacturing and installation are relatively simple. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a top view structural schematic diagram of the middle-split fireproof layer door.
[0011] Figure 2 is an enlarged structural schematic diagram of the intermediate blocking piece.
[0012] Figure 3 is an enlarged structural schematic diagram of the side edge blocking piece.
[0013] Figure 4 is a lateral structural schematic diagram of the middle-split fireproof layer door.
[0014] Figure 5 is an enlarged structural schematic diagram of the lower baffle.
[0015] In the figure: 1, left layer door panel, 2, right layer door panel, 3, left door sleeve column, 4, right door sleeve column, 5, middle blocking piece, 6, side blocking piece, 7, upper blocking plate, 8, lower blocking plate, 9, fixed plate, 10, blocking plate, 11, left middle blocking plate, 12, right middle blocking plate, 13, recessed side, 14, outward convex side, 15, opening side, 16, middle extension edge, 17, threshold. DETAILED DESCRIPTION
[0016] The utility model will be further explained in detail in combination with the drawings and by examples, the following examples are the explanation of the utility model and the utility model is not limited to the following examples.
[0017] A middle partition type fire resistance layer door, the fire resistance layer door includes left layer door panel 1, right layer door panel 2, left door sleeve column 3, right door sleeve column 4, left layer door panel 1 and right layer door panel 2 are mutually opposite and translate to realize door opening, the left side of left layer door panel 1 is provided with left door sleeve column 3 as a part of door frame, the right side of right layer door panel 2 is provided with door sleeve column correspondingly, middle blocking piece 5 is arranged between left layer door panel 1 and right layer door panel 2, side blocking piece 6 is arranged between left door sleeve column 3 and left layer door panel 1 and between right door sleeve and right layer door panel 2, upper blocking plate 7 is further arranged at the upper portion of left layer door panel 1 and right layer door panel 2, and lower blocking plate 8 is arranged at the lower portion.
[0018] The middle blocking piece 5, the side blocking piece 6, the upper blocking plate 7 and the lower blocking plate 8 are all formed by bending plate material, and each includes a fixed plate 9 and a blocking plate 10, wherein the fixed plate 9 is attached to the left layer door panel 1 or the right layer door panel 2 by adhesion, welding or screwing.
[0019] The middle blocking piece 5 includes a left middle blocking plate 11 and a right middle blocking plate 12, the left middle blocking plate 11 has a recessed side 13, and the recessed side 13 is recessed relative to the edge of the left layer door panel 1, the right middle blocking plate 12 has an outward convex side 14, and the outward convex side 14 is arranged beyond the edge of the right layer door panel 2 and close to the recessed side 13.
[0020] The side blocking piece 6 and the upper blocking plate 7 have the same structure, the side blocking piece 6 is arranged opposite to the door, the blocking plate 10 of the side blocking piece 6 is inserted and attached to the opening side 15 of the left door sleeve column 3 and the right door sleeve column 4, and the blocking plate 10 of the upper blocking plate 7 is inserted and attached to the opening side 15 of the door sleeve beam.
[0021] The lower blocking plate 8 further has a middle extension edge 16, the middle extension edge 16 extends the blocking plate 10 to the middle of the door panel, and the blocking plate 10 of the lower blocking plate 8 is inserted into the recessed space of the threshold 17.
[0022] It is apparent to a person skilled in the art that the present application is not restricted to the details of the foregoing exemplary embodiments, but that the present application can be implemented in other embodiments without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application 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. No feature of the application should be considered critical or essential to the application unless the embodiment as a whole is inoperative to achieve its major purpose.
[0023] Furthermore, it should be understood that although the present specification is written in terms of embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.
Claims
1. A center-part fire-resistant door, characterized in that: The fire-resistant door includes a left door panel (1), a right door panel (2), a left door frame column (3), and a right door frame column (4). The left door panel (1) and the right door panel (2) are aligned and moved to open the door. The left door panel (1) is provided with a left door frame column (3) as part of the door frame on the left side, and the right door panel (2) is provided with a door frame column on the right side. A middle blocking component (5) is provided between the left door panel (1) and the right door panel (2). Side blocking components (6) are provided between the left door frame column (3) and the left door panel (1) and between the right door frame and the right door panel (2). An upper baffle (7) is provided on the upper part of the left door panel (1) and the right door panel (2), and a lower baffle (8) is provided on the lower part.
2. The center-part fire-resistant door according to claim 1, characterized in that: The middle blocking member (5), the side blocking member (6), the upper baffle (7) and the lower baffle (8) are all made of sheet metal and are formed by bending. Each of them includes at least a fixing plate (9) and a blocking plate (10). The fixing plate (9) is fixedly installed on the left door panel (1) or the right door panel (2) by bonding, welding and screwing.
3. The center-part fire-resistant door according to claim 2, characterized in that: The intermediate blocking member (5) includes a left intermediate baffle (11) and a right intermediate baffle (12). The left intermediate baffle (11) has a recessed side (13) which is recessed relative to the edge of the left layer door panel (1). The right intermediate baffle (12) has a convex side (14) which extends beyond the edge of the right layer door panel (2) and is close to the recessed side (13).
4. The center-part fire-resistant door according to claim 2, characterized in that: The side blocking member (6) and the upper baffle (7) adopt the same structure. The side blocking member (6) is a structure in which the two sides of the door are arranged opposite each other. The blocking plate (10) of the side blocking member (6) is inserted and fitted with the opening side (15) of the left door frame column (3) and the right door frame column (4). The blocking plate (10) of the upper baffle (7) is inserted and fitted with the opening side (15) of the door frame beam.
5. The center-part fire-resistant door according to claim 2, characterized in that: The lower baffle (8) also has a middle extension side (16), which extends the baffle (10) to the middle of the door panel. The baffle (10) of the lower baffle (8) is inserted into the groove space of the sill (17).