Fire door frame installed in two parts

Abstract

This utility model discloses a split-type fireproof door frame, relating to the field of fireproof door technology. It includes two vertical plates, one at the front and one at the back. A horizontal plate is positioned at the upper edge between the facing sides of the vertical plates. Rectangular grooves are formed near the front and back positions within the horizontal plates. A drive mechanism is fixedly installed on the inner wall of each rectangular groove, and a rectangular block is fixedly installed on the drive mechanism. A limit groove is formed on the side of the vertical plate corresponding to the rectangular block, and the rectangular block is inserted into the rectangular groove. Sealing mechanisms are provided on the outer surfaces of the horizontal plates and the front and rear vertical plates. Buffer mechanisms are provided on the left side of the vertical plates and the front and rear side plates near the inner wall. This utility model's door frame adopts a split-type structure, making it smaller and easier to transport. It also facilitates quicker and easier on-site assembly, increases the sealing performance between the door frame and the wall, and enhances the buffer function of the door frame, effectively preventing noise or damage from collisions with the door panel, resulting in a better seal between the door frame and the door panel.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a fire door frame that is installed in a split configuration. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and heat insulation for a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, and other similar locations. In addition to the functions of ordinary doors, fire doors also prevent the spread of fire and smoke, and can stop the spread of fire for a certain period of time to ensure the evacuation of personnel. The fire door frame is an important component of a fire door.

[0003] In existing technologies, conventional fire door frames are mostly one-piece structures, resulting in a large size that causes inconvenience in transportation and handling. The fire door frame lacks a sealing function with the wall. In addition, normally closed fire doors will automatically close after each opening, causing nozzles between the door frame and the door panel, resulting in significant noise. Furthermore, prolonged impacts can cause deformation of the door frame and door panel, leading to poor sealing performance. Utility Model Content

[0004] This utility model provides a fireproof door frame that can be installed in a split configuration to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof door frame with split installation, including vertical plates, two of which are arranged at the front and rear. A horizontal plate is arranged at the upper edge between the facing sides of the vertical plates. A rectangular groove is opened in the horizontal plate near the front and rear positions. A driving mechanism is fixedly installed on the inner wall of each rectangular groove. A rectangular block is fixedly installed on the driving mechanism. A limit groove is opened on the side of the vertical plate corresponding to the rectangular block. The rectangular block is inserted into the rectangular groove. The rectangular block is locked and fixed to the vertical plate by a locking mechanism. A sealing mechanism is provided on the outer surface of the horizontal plate and the front and rear vertical plates. A buffer mechanism is provided on the left side of the vertical plate and the front and rear side plates near the inner wall.

[0006] Furthermore, the drive mechanism includes a ball screw, a first bearing assembly, a ball nut, a second bearing assembly, a transmission rod, and a bevel gear assembly. The ball screw is mounted on the inner wall of the rectangular groove away from the vertical plate via the first bearing assembly. A ball nut is provided on the ball screw and is fixedly connected to the rectangular block. A transmission rod is mounted on the lower side wall of the horizontal plate corresponding to the rectangular groove via the second bearing assembly. The transmission rod is connected to the ball screw via the bevel gear assembly.

[0007] Furthermore, a groove is provided on the lower surface of the vertical plate corresponding to the transmission rod, and the lower surface of the transmission rod is horizontally flush with the lower surface of the vertical plate.

[0008] Furthermore, the four sides of the rectangular block are movably fitted with the inner walls of the rectangular groove and the limiting groove, and the side of the rectangular block facing the ball screw has an insertion hole for the ball screw to pass through.

[0009] Furthermore, the locking mechanism includes a threaded hole and a locking bolt. Threaded holes are provided on the left side of both the rectangular block and the vertical plate, and locking bolts are installed in the threaded holes.

[0010] Furthermore, the sealing mechanism includes a mounting groove and a high-temperature expansion strip. The mounting groove is provided on the outer surface of the vertical plate, and the high-temperature expansion strip is installed in the mounting groove.

[0011] Furthermore, the buffer mechanism includes a spring-damped shock absorber, a rectangular plate, and an elastic rubber strip. The spring-damped shock absorber is installed on the left side of the vertical plate from both the top and bottom. A rectangular plate is fixedly installed between the left sides of the spring-damped shock absorber, and an elastic rubber strip is fixedly installed on the left side of the rectangular plate.

[0012] Furthermore, the sides of the rectangular plate and the elastic rubber strip are movably fitted with the sides of the vertical plate.

[0013] Compared with the prior art, this utility model provides a fireproof door frame that can be installed in separate parts, which has the following advantages:

[0014] 1. This split-type fireproof door frame, through the cooperation of a drive mechanism and a locking mechanism, makes the front and rear vertical plates and the horizontal plates form a complete door frame. The split structure of the door frame makes it smaller in size, easier to transport, and more convenient and quick to assemble on site.

[0015] 2. This split-type fireproof door frame, through the preheating expansion of the sealing mechanism, increases the sealing performance between the door frame and the wall, thereby improving the fireproof sealing effect of the door frame.

[0016] 3. This split-type fireproof door frame has an added buffer mechanism to enhance its cushioning function. When the door panel is closed, it will not collide with the door frame and cause noise, or cause deformation or damage to the door panel and the door frame. This ensures a tighter fit between the door frame and the door panel and a better sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a left sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0020] Figure 4This is a left view of the drive mechanism of this utility model.

[0021] In the diagram: 1. Vertical plate; 2. Horizontal plate; 3. Rectangular groove; 4. Drive mechanism; 401. Ball screw; 402. First bearing assembly; 403. Ball nut; 404. Second bearing assembly; 405. Transmission rod; 406. Bevel gear assembly; 5. Rectangular block; 6. Limiting groove; 7. Locking mechanism; 701. Threaded hole; 702. Locking bolt; 8. Sealing mechanism; 801. Mounting groove; 802. High-temperature expansion strip; 9. Buffer mechanism; 901. Spring damping shock absorber; 902. Rectangular plate; 903. Elastic rubber strip; 10. Groove; 11. Insertion hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model discloses a split-type fireproof door frame, including a vertical plate 1, two of which are arranged at the front and rear. A horizontal plate 2 is arranged at the upper edge between the facing sides of the vertical plates 1. A rectangular groove 3 is opened in the horizontal plate 2 near the front and rear positions. A driving mechanism 4 is fixedly installed on the inner wall of the rectangular groove 3. A rectangular block 5 is fixedly installed on the driving mechanism 4. A limit groove 6 is opened on the side of the vertical plate 1 corresponding to the rectangular block 5. The rectangular block 5 is inserted into the rectangular groove 3. The rectangular block 5 is locked and fixed to the vertical plate 1 by a locking mechanism 7. A sealing mechanism 8 is provided on the outer surface of the horizontal plate 2 and the front and rear vertical plates 1. A buffer mechanism 9 is provided on the left side of the vertical plate 1 and the front and rear side plates near the inner wall.

[0024] Specifically, the drive mechanism 4 includes a ball screw 401, a first bearing assembly 402, a ball nut 403, a second bearing assembly 404, a transmission rod 405, and a bevel gear assembly 406. The ball screw 401 is mounted on the inner wall of the rectangular groove 3 away from the vertical plate 1 via the first bearing assembly 402. The ball screw 401 is provided with a ball nut 403, which is fixedly connected to the rectangular block 5. The transmission rod 405 is mounted on the lower side wall of the horizontal plate 2 corresponding to the rectangular groove 3 via the second bearing assembly 404. The transmission rod 405 is connected to the ball screw 401 via the bevel gear assembly 406.

[0025] In this embodiment, the transmission rod 405 rotates in the second bearing assembly 404, causing the transmission rod 405 to drive the ball screw 401 to rotate in the first bearing assembly 402 via the bevel gear assembly 406. The rotation of the ball screw 401 causes the ball nut 403 to move the rectangular block 5 towards the vertical plate 1 for easy movement, so that the rectangular block 5 is inserted into the limiting groove 6 on the vertical plate 1.

[0026] Specifically, a groove 10 is provided on the lower surface of the vertical plate 1 corresponding to the transmission rod 405, and the lower surface of the transmission rod 405 is horizontally flush with the lower surface of the vertical plate 1.

[0027] In this embodiment, the groove 10 facilitates hand-held insertion to rotate the transmission rod 405, and the transmission rod 405 is not obtrusive and will not affect other components.

[0028] Specifically, the four sides of the rectangular block 5 are movably fitted with the inner walls of the rectangular groove 3 and the limiting groove 6, and the rectangular block 5 has an insertion hole 11 on the side facing the ball screw 401 for the ball screw 401 to pass through.

[0029] In this embodiment, the rectangular block 5 moves stably from left to right and engages stably with the vertical plate 1, and the insertion hole 11 meets the requirement for the ball screw 401 to pass through the rectangular block 5.

[0030] Specifically, the locking mechanism 7 includes a threaded hole 701 and a locking bolt 702. The rectangular block 5 and the left side of the vertical plate 1 are both provided with threaded holes 701, and the locking bolt 702 is installed in the threaded hole 701.

[0031] In this embodiment, the locking bolt 702 is threaded into the threaded hole 701 on the rectangular block 5 and the vertical plate 1, so that the vertical plate 1 and the rectangular block 5 are locked and fixed, thereby preventing the vertical plate 1 and the horizontal plate 2 from separating.

[0032] Specifically, the sealing mechanism 8 includes an installation groove 801 and a high-temperature expansion strip 802. The installation groove 801 is provided on the outer surface of the vertical plate 1, and the high-temperature expansion strip 802 is installed in the installation groove 801.

[0033] In this embodiment, the mounting groove 801 is used to install the high-temperature expansion strip 802, which expands when heated and fits more tightly against the wall.

[0034] Specifically, the buffer mechanism 9 includes a spring damping shock absorber 901, a rectangular plate 902, and an elastic rubber strip 903. The spring damping shock absorber 901 is installed on the left side of the vertical plate 1 from both the top and bottom. The rectangular plate 902 is fixedly installed between the left sides of the spring damping shock absorber 901. The elastic rubber strip 903 is fixedly installed on the left side of the rectangular plate 902.

[0035] In this embodiment, the spring damping shock absorber 901 is embedded in the vertical plate 1. The spring damping shock absorber 901 increases the buffering function of the rectangular plate 902 and the elastic rubber strip 903. During the contact with the door panel, it buffers the impact force of the door panel to avoid noise and prevents the door panel from bumping into the door frame. In addition, the spring damping shock absorber 901 pushes the rectangular plate 902 and the elastic rubber strip 903 to stick to the door panel, making the door frame and the door panel fit more tightly. The buffering mechanism 9 on the horizontal plate 2 has the same function and is attached to the buffering mechanism 9 on the vertical plate 1.

[0036] Specifically, the sides of the rectangular plate 902 and the elastic rubber strip 903 are movably fitted with the sides of the vertical plate 1.

[0037] In this embodiment, the rectangular plate 902 and the elastic rubber strip 903 move stably from side to side.

[0038] In use, the front and rear vertical plates 1 are fitted together on the inner walls of the left and right sides of the door, and the horizontal plate 2 is installed between the front and rear vertical plates 1. The transmission rod 405 in the drive mechanism 4 rotates the second bearing assembly 404, causing the transmission rod 405 to drive the ball screw 401 to rotate in the first bearing assembly 402 via the bevel gear assembly 406. The rotation of the ball screw 401 causes the ball nut 403 to move the rectangular block 5 towards the vertical plate 1, allowing the rectangular block 5 to be inserted into the limiting groove 6 on the vertical plate 1. Then, the locking bolt 702 in the locking mechanism 7 is threaded into the threaded hole 701 on the rectangular block 5 and the vertical plate 1, locking and fixing the vertical plate 1 and the rectangular block 5 together. This prevents the vertical plate 1 and the horizontal plate 2 from separating, allowing the door frame to adopt a split structure, making it smaller and easier to transport. On-site assembly is also more convenient and faster. (This is achieved through a sealing machine.) The mounting groove 801 in structure 8 is used to install the high-temperature expansion strip 802. The high-temperature expansion strip 802 expands when heated and fits more tightly against the wall. After installation, the door panel is installed on the left side of the vertical plate 1 via a hinge, and the door panel and the door frame are connected by a door closer. When the door panel is closed, the spring damping shock absorber 901 in the buffer mechanism 9 increases the buffering function of the rectangular plate 902 and the elastic rubber strip 903. During the contact with the door panel, the impact force of the door panel is buffered to avoid noise and to prevent the door panel from colliding with the door frame. The spring damping shock absorber 901 pushes the rectangular plate 902 and the elastic rubber strip 903 to fit against the door panel, making the fit between the door frame and the door panel tighter. The buffer mechanism 9 on the horizontal plate 2 has the same function, making the fit between the door frame and the door panel tighter and the sealing effect better.

[0039] In summary, this split-type fireproof door frame features a split structure, resulting in a smaller size and easier handling. It also allows for quicker and easier on-site assembly, improves the sealing performance between the door frame and the wall, and enhances the door frame's buffering function. This effectively prevents noise or damage from collisions with the door panel, resulting in a better seal between the door frame and the door panel.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their contents.

[0041] Equivalents are limited.

Claims

1. A fire door frame with a split installation, including a vertical plate (1), characterized in that: Two vertical plates (1) are provided at the front and back. A horizontal plate (2) is provided at the upper edge between the facing sides of the vertical plates (1). A rectangular groove (3) is provided in the horizontal plate (2) near the front and back. A driving mechanism (4) is fixedly installed on the inner wall of the rectangular groove (3). A rectangular block (5) is fixedly installed on the driving mechanism (4). A limit groove (6) is provided on the side of the vertical plate (1) corresponding to the rectangular block (5). The rectangular block (5) is inserted into the rectangular groove (3). The rectangular block (5) is locked and fixed to the vertical plate (1) by a locking mechanism (7). A sealing mechanism (8) is provided on the outer surface of the horizontal plate (2) and the front and rear vertical plates (1). A buffer mechanism (9) is provided on the left side of the vertical plate (1) and the front and rear side plates near the inner wall.

2. The fireproof door frame with split installation according to claim 1, characterized in that: The drive mechanism (4) includes a ball screw (401), a first bearing assembly (402), a ball nut (403), a second bearing assembly (404), a transmission rod (405), and a bevel gear assembly (406). The ball screw (401) is mounted on the inner wall of the rectangular groove (3) away from the vertical plate (1) via the first bearing assembly (402). A ball nut (403) is provided on the ball screw (401). The ball nut (403) is fixedly connected to the rectangular block (5). A transmission rod (405) is mounted on the lower side wall of the horizontal plate (2) corresponding to the rectangular groove (3) via the second bearing assembly (404). The transmission rod (405) is connected to the ball screw (401) via the bevel gear assembly (406).

3. The fireproof door frame with split installation according to claim 2, characterized in that: The lower surface of the vertical plate (1) corresponding to the transmission rod (405) is provided with a groove (10), and the lower surface of the transmission rod (405) is horizontally flush with the lower surface of the vertical plate (1).

4. The fireproof door frame with split installation according to claim 1, characterized in that: The four sides of the rectangular block (5) are in contact with the inner walls of the rectangular groove (3) and the limiting groove (6). The rectangular block (5) has an insertion hole (11) on the side facing the ball screw (401) for the ball screw (401) to pass through.

5. The fireproof door frame with split installation according to claim 1, characterized in that: The locking mechanism (7) includes a threaded hole (701) and a locking bolt (702). The rectangular block (5) and the left side of the vertical plate (1) are both provided with threaded holes (701), and the locking bolt (702) is installed in the threaded hole (701).

6. The fireproof door frame with split installation according to claim 1, characterized in that: The sealing mechanism (8) includes a mounting groove (801) and a high-temperature expansion strip (802). The mounting groove (801) is provided on the outer surface of the vertical plate (1), and the high-temperature expansion strip (802) is installed in the mounting groove (801).

7. The fireproof door frame with split installation according to claim 1, characterized in that: The buffer mechanism (9) includes a spring damping shock absorber (901), a rectangular plate (902) and an elastic rubber strip (903). The spring damping shock absorber (901) is installed on the left side of the vertical plate (1) both above and below. The rectangular plate (902) is fixedly installed between the left sides of the spring damping shock absorber (901), and the elastic rubber strip (903) is fixedly installed on the left side of the rectangular plate (902).

8. The fireproof door frame with split installation according to claim 7, characterized in that: The sides of the rectangular plate (902) and the elastic rubber strip (903) are movably attached to the sides of the vertical plate (1).

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