Door frame covered edge of fireproof door

Abstract

The utility model relates to a door frame covered edge of a fireproof door, which comprises a first covered edge and a second covered edge which are respectively covered on two side edges of a door frame structure, and a third covered edge and a fourth covered edge which are covered on the top edge of the door frame structure, and the top ends of the first covered edge and the second covered edge are respectively connected with two ends of the third covered edge. The bottom end of the first covered edge and the bottom end of the second covered edge are connected with the two ends of the fourth covered edge respectively, the top end of the first covered edge and the top end of the second covered edge are cut into 45-degree oblique angles, the two ends of the third covered edge and the two ends of the fourth covered edge are cut into corresponding 45-degree oblique angles respectively, and a door handle mounting hole is formed in the middle of the first covered edge or the second covered edge. A plurality of hinge mounting holes are formed in the second wrapping edge or the first wrapping edge, a plurality of stretching holes are further formed in the first wrapping edge, the second wrapping edge, the third wrapping edge and the fourth wrapping edge respectively, and elastic pieces are arranged on the portions, between every two adjacent stretching holes, of the first wrapping edge, the second wrapping edge, the third wrapping edge and the fourth wrapping edge.

Description

Technical Field

[0001] This utility model relates to the field of door frame manufacturing technology, and in particular to a fire door frame edging. Background Technology

[0002] Fire doors consist of a door leaf and a door frame. The door frame is fixedly installed on the wall, and the door leaf is connected to the door frame via hinges. To improve the overall strength of the fire door and address its short service life, the door frame is usually covered with edging and corner protectors. Edging is fixedly installed on the door frame, and it abuts against the door leaf. The edging reduces the likelihood of deformation of the door frame when impacted by the door leaf. However, the rounded corners of the edging are not easy to fit snugly against the door frame. During manufacturing, these corners are difficult to process, and manufacturing errors can lead to insufficient tightness in the fit, causing abnormal noises when the door leaf is impacted. Over time, the connection between the edging and the door frame loosens, creating a large gap. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects in the existing technology and provide a fire door frame edging.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a fire door frame edging, including a first edging and a second edging covering the two sides of the door frame structure, and a third edging and a fourth edging covering the top edge of the door frame structure. The top ends of the first edging and the second edging are respectively connected to the two ends of the third edging, and the bottom ends of the first edging and the second edging are respectively connected to the two ends of the fourth edging. The top ends of the first edging and the second edging are cut at a 45-degree angle, and the two ends of the third edging and the fourth edging are respectively cut at corresponding 45-degree angles. The edgings are spliced ​​together to form a 45-degree angle. A door handle mounting hole is provided in the middle of the first edging or the second edging. Several hinge mounting holes are provided in the second edging or the first edging. Several tension holes are also provided on the first edging, the second edging, the third edging, and the fourth edging.

[0005] A further preferred technical solution is to provide spring sheets on the first, second, third, and fourth edging edges between two adjacent stretching holes.

[0006] In a further preferred embodiment, the door handle mounting hole is polygonal.

[0007] In a further preferred embodiment, the door handle mounting hole is rectangular and is disposed through the first or second edging.

[0008] In a further preferred embodiment, the first or second edging is provided with four sets of hinge mounting holes, which are equally spaced on the first or second edging, and the hinge mounting holes are formed by a combination of several through holes.

[0009] In a further preferred embodiment, the hinge mounting hole is provided by three through holes arranged in a triangular pattern.

[0010] In a further preferred embodiment, the hinge mounting hole is provided by five circular through holes, and the five circular through holes are arranged in such a way that two circular through holes are symmetrically arranged on both sides of one of them as the center.

[0011] In a further preferred embodiment, the spring is fixedly connected to the first edge, the second edge, the third edge, and the fourth edge, with one end of the spring fixed to the first edge, the second edge, the third edge, and the fourth edge, and the other end being a free end.

[0012] In a further preferred embodiment, the spring is directly punched from the edge, one end of the spring is integrally connected to the edge and bent into an arc shape at the connection position, and the other end of the spring is a free end suspended on the outside of the edge.

[0013] In a further preferred embodiment, the spring piece is detachably connected to the first edge, second edge, third edge, and fourth edge. The first edge, second edge, third edge, and fourth edge are provided with sliding grooves for installing the spring piece. The spring piece includes an arc segment, and both ends of the arc segment are provided with connecting feet extending outward from the arc. The connecting feet are inserted into the sliding groove.

[0014] In a further preferred embodiment, the spring is S-shaped, with one end connected to the first, second, third, and fourth edgings, and the other end being a free end.

[0015] The advantages and beneficial effects of this utility model are as follows: by using the edge binding, the impact of the door leaf is reduced, the door frame is less prone to deformation, and the strength and service life of the door frame are improved.

[0016] The spring clip abuts against the door frame, eliminating the gap between the edging and the door frame. This allows the edging and the door frame to fit tightly together, subjecting both the door frame and the edging to pre-pressure, thus increasing their strength. This enables the door frame to withstand prolonged impacts from the door leaf. Simultaneously, because the spring clip fills the gap between the door frame and the edging, it eliminates any abnormal noises generated when the door frame is impacted by the door leaf. Attached Figure Description

[0017] Figure 1This is an axonometric view of the present invention;

[0018] Figure 2 This is a schematic diagram of the hinge mounting hole of this utility model;

[0019] Figure 3 This is a schematic diagram of the door handle mounting hole of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-section of the tension hole of this utility model;

[0021] Figure 5 This is a schematic diagram of a single spring piece of this utility model;

[0022] Figure 6 This is a schematic diagram of the symmetrical spring sheet of this utility model;

[0023] Figure 7 This is a schematic diagram of the detachable spring clip of this utility model;

[0024] Figure 8 This is a schematic diagram of the S-shaped spring sheet of this utility model;

[0025] In the diagram: 10. Edge binding; 11. First edge binding; 12. Second edge binding; 13. Third edge binding; 14. Fourth edge binding; 15. Hinge mounting hole; 16. Door handle mounting hole; 17. Extension hole; 18. Spring piece; 19. Slide groove. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0027] like Figure 1-3As shown, a fire door consists of a door leaf and a door frame. The door frame is fixedly installed on the wall, and the door leaf is connected to the door frame via hinges. To improve the overall strength of the fire door and address its short service life, the door frame is typically covered with edging and corner protectors. Specifically, a door frame edging 10 is fixedly installed on the door frame, and the edging 10 abuts against the door leaf. The use of edging reduces the likelihood of deformation of the door frame when impacted by the door leaf. This application provides a fire door frame edging 10 comprising a first edging 11 and a second edging 12 covering the two side edges of the door frame structure, and a third edging 13 and a fourth edging 14 covering the top edge of the door frame structure. The top ends of the first edging 11 and the second edging 12 are respectively connected to the two ends of the third edging 13. The first edging 11... The bottom ends of the first edge 11 and the second edge 12 are respectively connected to the two ends of the fourth edge 14. The top ends of the first edge 11 and the second edge 12 are cut at a 45-degree angle. The two ends of the third edge 13 and the fourth edge 14 are respectively cut at corresponding 45-degree angles. Then, the edges are spliced ​​together to form a 45-degree angle. A door handle mounting hole 16 is provided in the middle of the first edge 11 or the second edge 12. A plurality of hinge mounting holes 15 are provided in the second edge 12 or the first edge 11. When the door handle mounting hole 16 is opened on the first edge 11, the hinge mounting hole 15 is opened on the second edge 12. When the hinge mounting hole 15 is opened on the first edge 11, the door handle mounting hole 16 is opened on the second edge 12.

[0028] The door handle mounting hole 16 is polygonal, preferably rectangular, and is disposed through the first edge 11 and the second edge 12.

[0029] Preferably, the first edge band 11 or the second edge band 12 is provided with four hinge mounting holes 15. The four hinge mounting holes 15 are equally spaced on the first edge band 11 or the second edge band 12. Each hinge mounting hole 15 is formed by a combination of several through holes. In one embodiment, the hinge mounting holes 15 are provided with three through holes arranged in a triangular pattern. In another embodiment, the hinge mounting holes 15 are provided with five circular through holes arranged in a manner where two circular through holes are symmetrically arranged on both sides of a central hole. In other embodiments, four through holes can be arranged in a rhomboid pattern.

[0030] like Figure 4As shown, a plurality of stretching holes 17 are provided on the first edge 11, the second edge 12, the third edge 13, and the fourth edge 14. Specifically, the first edge 11 and the second edge 12 are provided with five stretching holes 17, which are equally spaced on the first edge 11 or the second edge 12. The third edge 13 and the fourth edge 14 are provided with three stretching holes 17, which are equally spaced on the third edge 13 and the fourth edge 14. The stretching holes 17 have a frustum-shaped outward flange located on the inner side of the edge 10.

[0031] like Figure 5 As shown, when the first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14 are installed on the door frame, due to manufacturing errors, the door frame and the edge banding 10 between the stretching holes 17 do not fit tightly enough, causing abnormal noise when the door is impacted. Over time, the connection between the edge banding 10 and the door frame becomes loose, resulting in a large gap. Therefore, the first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14 between two adjacent stretching holes are... The edging 14 is provided with a spring piece 18, which abuts against the door frame to eliminate the gap between the edging 10 and the door frame. This allows the edging 10 to fit tightly against the door frame, ensuring that both the door frame and the edging 10 are subjected to preload, thus increasing their strength and enabling the door frame to withstand the impact of the door leaf for an extended period. At the same time, since the gap between the door frame and the edging 10 is filled by the spring piece 18, it can eliminate any abnormal noises generated when the door frame is impacted by the door leaf.

[0032] The spring piece 18 can be fixedly connected to the first edge band 11, the second edge band 12, the third edge band 13, and the fourth edge band 14, or it can be detached from the edge band 14. In one embodiment, the spring piece 18 is fixedly connected to the first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14. One end of the spring piece 18 is fixed to the first edge banding 11, the second edge banding 12, the third edge banding 14, and the fourth edge banding 15, while the other end is a free end. The spring piece 18 can be fixedly connected to the first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14 by rivets, while the other end is suspended. In this way, the free end of the spring piece 18 can abut against the door frame and undergo elastic deformation under the action of the door frame, thereby causing the edge banding to elastically abut against the door frame. In another embodiment, the spring piece 18 is directly punched from the edge banding 10. One end of the spring piece 18 is integrally connected to the edge banding 10, and the spring piece 18 is bent into an arc shape at the connection position, so that the other end of the spring piece 18 is a free end suspended on the outside of the edge banding 10.

[0033] like Figure 6 As shown, since one end of the spring piece 18 is connected to the edging 10 and the other end is connected to the door frame, the force points are uneven. In order to make the force between the edging 10 and the door frame uniform, a pair of spring pieces 18 are set between the two tension holes 17. The pair of spring pieces 18 are symmetrically arranged, so that the spring pieces 18 form a pair of symmetrical force points on the edging 10, which makes the force between the edging 10 and the door frame uniform. At the same time, it can improve the service life of the spring pieces 18.

[0034] like Figure 7 As shown, the spring piece 18 is detachably connected to the first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14. The first edge banding 11, the second edge banding 12, the third edge banding 13, and the fourth edge banding 14 are provided with sliding grooves 19 for installing the spring piece 18. The sliding groove 19 can be a U-shaped groove. The spring piece 18 includes an arc segment, and both ends of the arc segment are provided with connecting feet extending outwards. The connecting feet are inserted into the sliding groove 19. When the arc segment of the spring piece 18 abuts against the frame, the connecting feet of the spring piece 18 extend into the sliding groove 19 along the sliding groove and simultaneously deform, allowing the spring piece 18 to adapt to the gap between the edge banding 10 and the door frame, while simultaneously generating pre-pressure between the edge banding 10 and the door frame.

[0035] like Figure 8 As shown, in order to improve the elastic performance of the spring piece 18, in one embodiment, the spring piece 18 is S-shaped. The S-shaped spring piece 18 has better elastic performance, which can increase the preload between the edging 10 and the door frame, and make the edging 10 and the door frame fit tightly together. At the same time, since the spring piece 18 is S-shaped, the spring piece can be elastically deformed at both ends near the edging 10 and the door frame, so that the spring piece 18 can adapt to different gaps between the edging 10 and the door frame, and the spring piece 18 has better performance.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fire door frame edging, characterized in that, The system includes a first and a second edging covering the two sides of the door frame structure, and a third and a fourth edging covering the top edge of the door frame structure. The top ends of the first and second edgings are connected to the two ends of the third edging, and the bottom ends of the first and second edgings are connected to the two ends of the fourth edging. The top ends of the first and second edgings are cut at a 45-degree angle, and the two ends of the third and fourth edgings are cut at corresponding 45-degree angles. The edgings are spliced ​​together to form a 45-degree angle. A door handle mounting hole is provided in the middle of the first or second edging. Several hinge mounting holes are provided in the second or first edging. Several tension holes are also provided on the first, second, third, and fourth edgings.

2. The fire door frame edging according to claim 1, characterized in that, Spring tabs are provided on the first, second, third, and fourth edging edges between two adjacent stretching holes.

3. The fire door frame edging according to claim 1, characterized in that, The door handle mounting hole is polygonal.

4. The fire door frame edging according to claim 3, characterized in that, The door handle mounting hole is rectangular and is disposed through the first or second edging.

5. The fire door frame edging according to claim 1, characterized in that, The first or second edging is provided with four sets of hinge mounting holes, which are equally spaced on the first or second edging. The hinge mounting holes are formed by a combination of several through holes.

6. The fire door frame edging according to claim 5, characterized in that, The hinge mounting hole is provided by three through holes arranged in a triangle.

7. The fire door frame edging according to claim 6, characterized in that, The hinge mounting hole is provided by five circular through holes, and the five circular through holes are arranged in such a way that two circular through holes are symmetrically arranged on both sides of one of them.

8. The fire door frame edging according to claim 2, characterized in that, The spring piece is fixedly connected to the first edge, the second edge, the third edge, and the fourth edge. One end of the spring piece is fixed to the first edge, the second edge, the third edge, and the fourth edge, while the other end is a free end.

9. The fire door frame edging according to claim 2, characterized in that, The spring piece is detachably connected to the first edge, second edge, third edge, and fourth edge. The first edge, second edge, third edge, and fourth edge are provided with sliding grooves for installing the spring piece. The spring piece includes an arc segment, and the two ends of the arc segment are provided with connecting feet extending outward from the arc. The connecting feet are inserted into the sliding groove.

10. The fire door frame edging according to claim 2, characterized in that, The spring is S-shaped, with one end connected to the first edge, second edge, third edge, and fourth edge, and the other end being a free end.

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