Splicing structure for split steel ladle sleeve of fireproof door frame

Abstract

The utility model discloses a fireproof door frame split steel ladle sleeve inserting structure which comprises a door frame, a door pocket, a door frame tie bar, a door frame pull piece, a door pocket fixing pull piece, a clamping groove pressing piece, a clamping groove pressing piece fixing piece and an expansion bolt, the door pocket is connected with the door frame in an inserting mode, the door frame tie bar is provided with the door frame pull piece, and the clamping groove pressing piece fixing piece is connected with the door frame. The door pocket is fixedly connected with a wall surface through the door pocket fixing pull piece and the expansion bolt, the clamping groove pressing pieces are connected with the door frame through the clamping groove pressing piece fixing pieces, one end of the door pocket is inserted between the clamping groove pressing pieces and the door frame and tightly attached to the door frame and the clamping groove pressing pieces, and the clamping groove pressing pieces comprise the first clamping groove pressing piece and the second clamping groove pressing piece. According to the split steel ladle sleeve insertion structure of the fireproof door frame, an insertion mode is adopted, the insertion depth can be adjusted until the insertion is in place, the structure is simple, the installation process is simple, convenient and rapid, abutted seams are compact and attractive, and the installation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of fireproof door frame technology, and in particular to a split steel-clad plug-in structure for fireproof door frames. Background Technology

[0002] Fire doors are installed in most public buildings, such as hospitals, schools, shopping malls, and factories. Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, and vertical shafts. Fire door frames are required during the installation of fire doors. Currently, aesthetics are prioritized for fire doors, often using a door frame with an cladding. Previously, solid wood or aluminum composite panel cladding was commonly used, but these methods suffer from low structural strength and susceptibility to wear. Therefore, steel cladding is now widely adopted. Steel cladding is increasingly used due to its advantages of high structural strength, wear resistance, ease of cleaning, and long service life.

[0003] Traditional steel-clad door frame installation typically involves first determining the opening thickness, then fixing the frame to the door frame, and finally installing it into the opening, especially with double-sided cladding. This method has strict requirements on the opening thickness, and gaps usually remain between the frame and the wall after installation. These gaps need to be repaired, and larger gaps due to larger errors are more difficult to repair, wasting time, affecting work efficiency, and impacting aesthetics, resulting in poor installation results. Utility Model Content

[0004] The purpose of this utility model is to provide a split steel-clad plug-in structure for fireproof door frames. The plug-in method allows for adjustable plug-in depth until the door is fully inserted. The structure is simple, the installation process is quick and easy, the joints are compact and aesthetically pleasing, and the installation effect is improved.

[0005] To achieve the above objectives, this utility model provides a fireproof door frame split steel sleeve plug-in structure, comprising a door frame, a door sleeve, a door frame tie rod, a door frame pull tab, a door sleeve fixing pull tab, a slot pressure plate, a slot pressure plate fixing plate, and an expansion bolt. The door sleeve and the door frame are plugged together. The door frame tie rod is provided with a door frame pull tab. The slot pressure plate fixing plate is connected to the door frame. The door sleeve is fixedly connected to the wall through the door sleeve fixing pull tab and the expansion bolt. The slot pressure plate is connected to the door frame through the slot pressure plate fixing plate. One end of the door sleeve is inserted between the slot pressure plate and the door frame and is tightly attached to the door frame and the slot pressure plate. The slot pressure plate includes a first slot pressure plate and a second slot pressure plate.

[0006] Preferably, the door frame is L-shaped, with a snap-on edge at one end and a hook edge on the outside of the snap-on edge. One end of the door frame fixing pull tab is riveted to the hook edge, and the other end is connected to the wall through an expansion bolt.

[0007] Preferably, the second card slot pressure plate is riveted or welded to the card slot pressure plate fixing plate, the door frame tie rod and the door frame tie plate are provided with mounting holes, and the expansion bolt is fixedly connected to the wall through the mounting holes.

[0008] Preferably, one end of the card slot pressing plate is welded to the card slot pressing plate fixing plate, and the other end is close to the door frame and extends 5mm to the outside of the door frame. The two ends of the card slot pressing plate are respectively close to the two ends of the door frame and extend 5mm to the outside of the door frame.

[0009] Preferably, the two ends of the card slot pressing plate fixing plate are welded to the inner sides of both ends of the door frame.

[0010] Preferably, the end of the door frame away from the door frame fixing tab is tightly attached to the outer side of one end of the door frame.

[0011] Preferably, the first slot pressing piece is zig-shaped, the second slot pressing piece is symmetrically zig-shaped, and both ends of the second slot pressing piece are respectively attached to the end of the door frame away from the door frame fixing pull piece.

[0012] Therefore, this utility model adopts the above-mentioned fireproof door frame split steel sleeve plug-in structure, which has a simple structure and is easy and quick to install. The slot pressure plate is elastic and easy to plug in. The zigzag-shaped drag edge gap facilitates the insertion of the door frame, ensuring the thickness and gap of the door frame. The slot pressure plate is 5mm higher than the tail end of the door frame. The 5mm higher end can serve as a guide for the door frame, and at the same time, it forms a chamfer with the R-angle of the door frame hook edge to facilitate the insertion of the door frame. One end of the slot pressure plate is close to the door frame, ensuring that there is no gap after the door frame is inserted. The door frame is close to the surface of the door frame. The door frame adopts a wrap-around plug-in method to ensure that the joint is tight and beautiful. The door frame is folded and bent against the wall side to ensure the verticality of the exposed surface. The door frame fixing piece is riveted to the inside of the hook edge to prevent the rivets from being exposed, thus improving the installation effect.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is an illustration of the installation effect of a single-sided central frame enclosure opening of a fireproof door frame split steel sleeve plug-in structure according to this utility model.

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is an illustration of the installation effect of a split steel-clad plug-in structure for a fireproof door frame with double-sided central frame openings.

[0017] Figure 4 This is an illustration of the installation effect of a single-sided external frame enclosure opening of a fireproof door frame split steel sleeve plug-in structure according to this utility model.

[0018] Figure 5 This is a side view of a single-sided external frame opening of a fireproof door frame split steel sleeve plug-in structure according to this utility model;

[0019] Figure 6 This is a side view of a single-sided central frame enclosure opening of a fireproof door frame split steel sleeve plug-in structure according to this utility model;

[0020] Figure 7 This utility model discloses a side view of a fireproof door frame split steel sleeve plug-in structure with double-sided middle frame opening.

[0021] Figure Labels

[0022] 1. Door frame; 2. Mounting hole; 3. Door casing; 4. Door casing fixing piece; 5. Edge trim; 6. Hook trim; 7. First slot pressing piece; 8. First slot pressing piece fixing piece; 9. Second slot pressing piece; 10. Expansion bolt; 11. Wall surface; 12. Door frame tie rod; 13. Door frame tie plate. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Example

[0026] A fireproof door frame 1 is a split steel sleeve plug-in structure, comprising a door frame 1, a door sleeve 3, a door frame tie rod 12, a door frame pull tab 13, a door sleeve fixing pull tab 4, a slot pressure plate, a slot pressure plate fixing piece 8, and an expansion bolt 10. The slot pressure plate includes a slot pressure plate one 7 and a slot pressure plate two 9.

[0027] The door frame 3 is connected to the door frame 1 by an insertion joint. The door frame tie rod 12 is equipped with a door frame pull tab 13. Both the door frame tie rod 12 and the door frame pull tab 13 have mounting holes 2. Expansion bolts 10 are fixedly connected to the wall 11 through the mounting holes 2. The door frame 1 is equipped with a door frame tie rod 12, which has mounting holes 2 and is fixed to the wall 11 by expansion bolts 10. When installing a single-sided external frame enclosure, if... Figure 5 As shown, a door frame tie rod 12 is provided with a door frame tie plate 13. The door frame tie rod 12 and the door frame tie plate 13 are provided with mounting holes 2. The door frame tie rod 12 and the door frame tie plate 13 can be fixed by the expansion bolt 10 respectively to strengthen the fixation of the door frame 1.

[0028] The fixing of door frame 3 is separate from the fixing of door frame 1, such as... Figure 5 As shown, a door frame tie rod 12 is welded side by side to the inner side of the door frame 1, and a slotted pressure plate fixing piece 8 is also welded to the slotted pressure plate fixing piece 8. The door frame tie piece 13 is welded to the door frame tie rod 12. When installing a single-sided external frame, fixing the expansion bolt 10 on the door frame tie rod 12 alone is not very stable and is prone to cracking the wall surface 11. Therefore, a door frame tie piece 13 is welded to the door frame tie rod 12. By setting mounting holes 2 on both the door frame tie rod 12 and the door frame tie piece 13, and using two expansion bolts 10 respectively, the door frame tie rod 12 and the door frame tie piece 13 are fixed to the wall surface 11 at the same time through the mounting holes 2, so as to ensure that the door frame 1 is firmly fixed.

[0029] The slot pressing plate fixing piece 8 is connected to the door frame 1. The door frame 3 is fixedly connected to the wall 11 through the door frame fixing pull piece 4 and the expansion bolt 10. The slot pressing piece is connected to the door frame 1 through the slot pressing plate fixing piece 8. One end of the door frame 3 is inserted between the slot pressing piece and the door frame 1 and is close to the door frame 1 and the slot pressing piece.

[0030] The door frame 3 is L-shaped, with a retaining edge 5 at one end. A hook edge 6 is located on the outer side of the retaining edge 5, ensuring the verticality of the exposed surface and improving aesthetics. One end of the door frame fixing tab 4 is riveted to the hook edge 6, and the other end is connected to the wall 11 via an expansion bolt 10. Riveting to the inside of the hook edge 6 prevents exposed rivets, maintaining a neat appearance. Riveting must be done on-site, adjusting as needed based on the actual conditions to prevent the door frame fixing tab 4 from scratching the paint on the door frame 1 during transportation.

[0031] The second slot pressing piece 9 is riveted or welded to the slot pressing piece fixing piece 8. One end of the first slot pressing piece 7 is welded to the slot pressing piece fixing piece 8, and the other end is tightly attached to the door frame 1 and extends 5mm to the outside of the door frame 1. Both ends of the second slot pressing piece 9 are tightly attached to both ends of the door frame 1 and extend 5mm to the outside of the door frame 1. The first slot pressing piece 7 and the second slot pressing piece 9 protrude 5mm above the tail end of the door frame 1. The protruding 5mm end can serve as a guide for the door frame 3, and at the same time, it forms a chamfer with the R-angle of the hook edge of the door frame 1 to facilitate the insertion of the door frame 3.

[0032] The two ends of the card slot pressing plate fixing piece 8 are welded to the inner sides of both ends of the door frame 1. The end of the door frame 3 away from the door frame fixing pull piece 4 is tightly attached to the outer side of one end of the door frame 1.

[0033] The slot retainer 7 is zig-shaped, with a flexible and easy-to-insert zig-shaped edge. The zig-shaped edge gap facilitates the insertion of the door frame 3, ensuring the thickness and clearance of the door frame 3. The slot retainer 7 protrudes 5mm from the end of the door frame 1. This 5mm protrusion serves as a guide for the door frame 3 and forms a chamfer with the R-angle of the door frame 1's edge, facilitating the insertion of the door frame 3. The other end of the slot retainer 7 is welded tightly to the slot retainer fixing piece 8, and the weld point is ground.

[0034] The card slot pressing plate 29 is symmetrically zigzag-shaped, and its shape is equivalent to two card slot pressing plates 1 7 joined together, such as... Figure 3 As shown, the two ends of the second slot pressure plate 9 are respectively attached to the end of the door frame 3 away from the door frame fixing pull tab 4. The second slot pressure plate 9 is suitable for the installation of the double-sided middle frame of the door frame 3, and the two ends of the second slot pressure plate 9 are respectively attached to the top of the door frame 3 on both sides.

[0035] Therefore, this utility model adopts the above-mentioned fireproof door frame split steel sleeve plug-in structure. The plug-in method allows for adjustable plug-in depth until fully inserted. The structure is simple, the installation process is quick and easy, the joints are tight and aesthetically pleasing, and the installation effect is improved.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A split steel-clad plug-in structure for a fireproof door frame, characterized in that: The components include a door frame, a door casing, a door frame tie rod, a door frame tie plate, a door casing fixing tie plate, a slotted pressure plate, a slotted pressure plate fixing plate, and an expansion bolt. The door casing and the door frame are connected by an insertion joint. The door frame tie rod is equipped with a door frame tie plate. The slotted pressure plate fixing plate is connected to the door frame. The door casing is fixedly connected to the wall via the door casing fixing tie plate and the expansion bolt. The slotted pressure plate is connected to the door frame via the slotted pressure plate fixing plate. One end of the door casing is inserted between the slotted pressure plate and the door frame and is tightly fitted to the door frame and the slotted pressure plate. The slotted pressure plate includes a slotted pressure plate one and a slotted pressure plate two.

2. The fireproof door frame split steel sleeve plug-in structure according to claim 1, characterized in that: The door frame is L-shaped, with a snap-on edge at the end of the L-shaped door frame. A hook edge is provided on the outer side of the snap-on edge. One end of the door frame fixing pull tab is riveted to the hook edge, and the other end is connected to the wall through an expansion bolt.

3. The fireproof door frame split steel-clad plug-in structure according to claim 1, characterized in that: The second slot pressure plate is riveted or welded to the slot pressure plate fixing plate. The door frame tie rod and the door frame tie plate are both provided with mounting holes. The expansion bolt is fixedly connected to the wall through the mounting holes.

4. The fireproof door frame split steel sleeve plug-in structure according to claim 1, characterized in that: One end of the card slot pressing plate is welded to the card slot pressing plate fixing plate, and the other end is close to the door frame and extends 5mm to the outside of the door frame. The two ends of the card slot pressing plate are respectively close to the two ends of the door frame and extend 5mm to the outside of the door frame.

5. The fireproof door frame split steel sleeve plug-in structure according to claim 1, characterized in that: The two ends of the card slot pressure plate fixing plate are respectively welded to the inner sides of the two ends of the door frame.

6. The fireproof door frame split steel-clad plug-in structure according to claim 1, characterized in that: The end of the door frame away from the door frame fixing tab is tightly attached to the outer side of one end of the door frame.

7. The fireproof door frame split steel-clad plug-in structure according to claim 1, characterized in that: The first slot pressing piece is zig-shaped, and the second slot pressing piece is symmetrically zig-shaped. The two ends of the second slot pressing piece are respectively attached to the end of the door frame away from the fixed pull piece of the door frame.

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