An assembled fire door

Abstract

The utility model relates to a fire door, specifically, especially relates to an assembled fire door. The utility model provides an assembled fire door convenient to disassemble and replace, including right door frame, fire door, sliding rod and left door frame, the inner frame of right door frame is provided with fire door rotatably, a group of sliding rods are arranged on the left side of right door frame in upper and lower interval, and one left door frame is arranged between the left end of two sliding rods in sliding mode. The utility model discloses through pushing the sliding block to pull the positioning rod, so that can pass through the door frame, and the movement of positioning rod will push the guide inclined plate and the sliding fit of clamping rod, and then push out the clamping rod, so that the clamping rod can pass through the door frame and be inserted into the door hole, and the whole operation is coherent, and when needing to disassemble, directly push the sliding block and the positioning rod reset through the bolt, so that the disassembly and installation operation are more convenient, realize the effect that convenient to dismount.

Description

Technical Field

[0001] This utility model relates to fire doors, and more particularly to a prefabricated fire door. Background Technology

[0002] Fire doors are specially designed doors whose primary function is to prevent the spread of fire and smoke during a fire, buying valuable time for evacuation and firefighting rescue. Fire doors are designed and manufactured according to specific standards to ensure their stability and integrity under fire conditions.

[0003] The installation of fire doors is a professional and meticulous process. It usually requires measuring the door opening size to ensure that it matches the specifications of the fire door. Then, the door frame is placed into the door opening, and a spirit level is used to adjust the horizontal and vertical of the door frame. Expansion bolts or pre-embedded iron parts are used to fix the door frame to the wall to ensure that the door frame is stable and has no gaps with the wall. Because it is fixed by traditional bolts, the door frame needs to be embedded in the wall. This installation method makes the door frame in a tight state after it is fixed, which is not convenient for subsequent disassembly and replacement operations and will affect work efficiency.

[0004] Therefore, to address the above problems, it is necessary to propose a prefabricated fire door that is easy to disassemble and replace. Utility Model Content

[0005] To overcome the drawbacks of traditional bolt fixing, which keeps the door frame in a tight state and makes disassembly and replacement difficult, this utility model provides a prefabricated fire door that is easy to disassemble and replace.

[0006] The technical implementation scheme of this utility model is as follows: A prefabricated fire door includes a right door frame, a fire door, sliding rods, a left door frame, elastic elements, guide blocks, positioning rods, guide ramps, locking rods, sliding blocks, and bolts. A fire door is rotatably installed within the inner frame of the right door frame. A set of sliding rods is spaced vertically on the left side of the right door frame. A left door frame is slidably installed between the left ends of two sliding rods. Elastic elements are sleeved on the sliding rods, and both ends of the elastic elements are connected to one side of the adjacent right and left door frames, respectively. Multiple guide blocks are spaced apart on the sides of the right and left door frames that are far apart from each other. Guide blocks on the same side are slidably positioned... A positioning rod is provided, with the bottom ends of two positioning rods passing through the right and left door frames respectively. Multiple sets of guide ramps are evenly spaced on the positioning rods. The outer sides of both the right and left door frames are slidably equipped with locking rods of the same number as the guide ramps. The locking rods are slidably connected to two adjacent guide ramps. Sliding blocks are slidably provided on the lower front part of both the right and left door frames. The sliding blocks abut against the guide ramps at the lowest position on the same side, and bolts are threaded on the sliding blocks. The bolts are in contact with the guide ramps at the lower end. Threaded holes are provided on both the right and left door frames, and the threaded holes are threaded to the adjacent bolts.

[0007] As a further preferred option, a support plate is also included, with a rotatable support plate installed on the front side of both the right and left door frames.

[0008] As a further preferred embodiment, it also includes a sliding frame and a limiting block. A sliding frame is provided on both the right and left door frames. The sliding frame is located above the support plate, and a limiting block is slidably provided on the sliding frame. The limiting block is sleeved and fixed to the adjacent support plate.

[0009] As a further preferred option, it also includes telescopic plates, with telescopic plates slidably installed at the bottom of both support plates.

[0010] As a further preferred option, it also includes a screw and a fixing nut. The front of both telescopic plates is provided with a screw, and both support plates are provided with a sliding groove adapted to the screw. The sliding groove and the screw are slidably engaged, and a fixing nut is threaded on the screw.

[0011] As a further preferred option, it also includes hinge plates, with two hinge plates rotatably installed on the left end of the right door frame.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model pulls the positioning rod by pushing the sliding block, so that it can pass through the door frame. At the same time, the movement of the positioning rod will push the guide plate and the locking rod to slide and cooperate, thereby pushing the locking rod out, so that the locking rod can pass through the door frame and be inserted into the door opening. The overall operation is smooth, and when disassembly is required, the sliding block and positioning rod can be reset by pushing the bolt, which makes disassembly and installation more convenient and achieves the effect of easy disassembly and assembly.

[0013] 2. This utility model uses a support plate to support and abut the positions of the right and left door frames, providing fixation and support during installation, so that assembly can be completed more quickly, thereby improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an enlarged three-dimensional structural diagram of part A of this utility model.

[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the positioning rod, guide ramp, and locking rod of this utility model.

[0017] The markings in the diagram are as follows: 1: Right door frame, 101: Threaded hole, 2: Fire door, 3: Sliding rod, 4: Left door frame, 5: Elastic element, 6: Guide block, 7: Positioning rod, 8: Guide ramp, 9: Locking rod, 10: Sliding block, 11: Bolt, 12: Support plate, 13: Sliding frame, 14: Limiting block, 15: Telescopic plate, 16: Screw, 17: Fixing nut, 18: Hinge plate. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0019] Example: A prefabricated fire door, such as Figures 1-3As shown, the structure includes a right door frame 1, a fire door 2, a sliding rod 3, a left door frame 4, an elastic element 5, a guide block 6, a positioning rod 7, a guide ramp 8, a locking rod 9, a sliding block 10, and bolts 11. The fire door 2 is rotatably mounted on the right side of the inner frame of the right door frame 1. A set of sliding rods 3 is horizontally arranged at intervals on the left side of the right door frame 1. Each sliding rod 3 consists of two parallel rods. A left door frame 4 is slidably mounted between the left ends of the two sliding rods 3. The left door frame 4 can move left or right under the guidance of the sliding rods 3, thus facilitating the adjustment of the left door. The distance between frame 4 and the right door frame 1 is such that two elastic elements 5, which are springs, are fitted on the sliding rod 3. The left and right ends of the elastic elements 5 are respectively connected to the inward side of the adjacent right door frame 1 and left door frame 4. Five guide blocks 6 are spaced apart on the opposite side of the right door frame 1 and left door frame 4. A positioning rod 7 is slidably installed between the five guide blocks 6 on the same side. The positioning rod 7 can move up and down. The bottom ends of the two positioning rods 7 pass through the right door frame 1 and left door frame 4 respectively, forming an insertable and fixed state, thereby assisting the right door frame 1 to move. The bottom positions of frame 1 and left door frame 4 are fixed, and six sets of guide ramps 8 are evenly spaced on the positioning rod 7. The slope of the guide ramps 8 is downward. The outer sides of both right door frame 1 and left door frame 4 are slidably equipped with locking rods 9, the same number as the guide ramps 8. The locking rods 9 are slidably connected to two adjacent guide ramps 8, and can be pushed to extend or retract by the slope of the guide ramps 8, thereby facilitating the fixing of the left and right sides of right door frame 1 and left door frame 4. The lower front part of both right door frame 1 and left door frame 4 is slidably equipped with... A sliding block 10 is provided, which abuts against the guide ramp 8 at the lowest position on the same side, which facilitates the pushing of the positioning rod 7. The front of the sliding block 10 is threaded with a bolt 11, which is in contact with the guide ramp 8 at the lower position. Threaded holes 101 are provided on both the right door frame 1 and the left door frame 4. The threaded holes 101 are threaded with the adjacent bolts 11, which can be turned to the threaded holes 101 to fit and clamp the guide ramp 8 at the lower position, thus fixing the position of the positioning rod 7 and the locking rod 9.

[0020] like Figure 1 and Figure 2 As shown, it also includes a support plate 12. The support plate 12 is rotatably installed at the middle of the front part of both the right door frame 1 and the left door frame 4. The support plate 12 can assist in supporting and fixing during the installation process.

[0021] like Figure 1As shown, it also includes a sliding frame 13 and a limiting block 14. The right door frame 1 and the left door frame 4 are both provided with sliding frames 13. The sliding frame 13 is located above the support plate 12, and the limiting block 14 is slidably provided on the sliding frame 13. The limiting block 14 is sleeved and fixed to the adjacent support plate 12. The position of the support plate 12 can be restricted by sliding the limiting block 14, thereby achieving the effect of limiting.

[0022] like Figure 2 As shown, it also includes a telescopic plate 15. The bottom of both support plates 12 are slidably provided with telescopic plates 15, which can extend the length of the support plates 12.

[0023] like Figure 2 As shown, it also includes a screw 16 and a fixing nut 17. The front of each of the two telescopic plates 15 is provided with a screw 16, and each of the two support plates 12 is provided with a sliding groove adapted to the screw 16. The sliding groove and the screw 16 are slidably engaged. The screw 16 is threaded with a fixing nut 17. Twisting the fixing nut 17 in conjunction with the screw 16 can fix the position of the telescopic plate 15.

[0024] like Figure 1 and Figure 3 As shown, it also includes a hinge plate 18. Two hinge plates 18 are rotatably arranged on the left end of the right door frame 1. The two hinge plates 18 are arranged back to back and their rotation directions are opposite.

[0025] When installing the fire door 2, the worker first places the right door frame 1 against the right doorway, while simultaneously gently moving the left door frame 4 closer to the left wall of the doorway. Once the left door frame 4 contacts the inner wall of the doorway, it will be compressed and slide on the sliding rod 3. The elastic element 5 will deform accordingly, adjusting the distance between itself and the inner wall of the doorway for a more comfortable fit. After both sides are stably embedded in the doorway, the hinge plate 18 can be fastened onto the left door frame 4, covering the sliding rod 3 to maintain an aesthetically pleasing appearance. Then, the limiting block 14 is pushed upwards, sliding upwards on the sliding frame 13, causing the support plate 12 to disengage from the limiting block 14. The support plate 12 is then rotated, and the fixing nut 17 is turned, pushing the telescopic plate 15 downwards via the screw 16, thus increasing the length of the support plate 12 to support the corresponding right door frame 1 or left door frame 4. Finally, the worker can turn the bolt 1... 1. Disengage it from the guide ramp 8, then push the sliding block 10 downwards by holding the bolt 11. This causes the sliding block 10 to drag the guide ramp 8 and the positioning rod 7 downwards, thus moving the positioning rod 7 downwards. The positioning rod 7 passes through the right door frame 1 or the left door frame 4 to fix the lower part of the whole. At the same time, the guide ramp 8 slides with the locking rod 9. Through the inclined surface of the guide ramp 8, the locking rod 9 is pushed through the right door frame 1 or the left door frame 4, thereby fixing the positions of the right door frame 1 and the left door frame 4. Once both sides are locked, loosen the bolt 11 and insert it into the threaded hole 101. Then twist the bolt 11 to lock it against the guide ramp 8, thereby fixing the position of the guide ramp 8. This completes the assembly of the right door frame 1 and the left door frame 4. Then reset the telescopic plate 15 and rotate the support plate 12 back to its original position. Fix the support plate 12 by fitting it with the limit block 14. Finally, install the fire door 2 of the appropriate size on the corresponding right door frame 1.

[0026] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated fire door, characterized in that, The system includes a right door frame (1), a fire door (2), a sliding rod (3), a left door frame (4), an elastic element (5), a guide block (6), a positioning rod (7), a guide ramp (8), a locking rod (9), a sliding block (10), and a bolt (11). The fire door (2) is rotatably installed inside the inner frame of the right door frame (1). A set of sliding rods (3) is spaced vertically on the left side of the right door frame (1). A left door frame (4) is slidably installed between the left ends of the two sliding rods (3). An elastic element (5) is sleeved on the sliding rod (3). The two ends of the elastic element (5) are respectively connected to one side of the adjacent right door frame (1) and left door frame (4). Multiple guide blocks (6) are spaced apart on the side of the right door frame (1) and the left door frame (4) away from each other. A positioning rod (7) is slidably installed between the guide blocks (6) on the same side. The bottom ends of the two positioning rods (7) are respectively inserted through... The right door frame (1) and the left door frame (4) are connected, and multiple sets of guide ramps (8) are evenly spaced on the positioning rod (7). The outer sides of the right door frame (1) and the left door frame (4) are both slidably provided with a locking rod (9) with the same number of sets as the guide ramps (8). The locking rod (9) is slidably connected to two adjacent guide ramps (8). The lower front side of the right door frame (1) and the left door frame (4) are both slidably provided with a sliding block (10). The sliding block (10) abuts against the guide ramp (8) at the lowest position on the same side. The sliding block (10) is threaded with a bolt (11). The bolt (11) is in contact with the guide ramp (8) at the lower position. The right door frame (1) and the left door frame (4) are both provided with a threaded hole (101). The threaded hole (101) is threadedly engaged with the adjacent bolt (11).

2. The prefabricated fire door according to claim 1, characterized in that, It also includes a support plate (12), and the front side of both the right door frame (1) and the left door frame (4) is rotatably provided with a support plate (12).

3. A prefabricated fire door according to claim 2, characterized in that, It also includes a sliding frame (13) and a limiting block (14). The right door frame (1) and the left door frame (4) are both provided with sliding frames (13). The sliding frame (13) is located above the support plate (12), and the limiting block (14) is slidably provided on the sliding frame (13). The limiting block (14) is sleeved and fixed to the adjacent support plate (12).

4. A prefabricated fire door according to claim 3, characterized in that, It also includes a telescopic plate (15), and the bottom of both support plates (12) are slidably provided with a telescopic plate (15).

5. A prefabricated fire door according to claim 4, characterized in that, It also includes a screw (16) and a fixing nut (17). The front of both telescopic plates (15) is provided with a screw (16), and both support plates (12) are provided with a sliding groove adapted to the screw (16). The sliding groove is slidably engaged with the screw (16), and the fixing nut (17) is threaded on the screw (16).

6. A prefabricated fire door according to claim 5, characterized in that, It also includes hinge plates (18), and two hinge plates (18) are rotatably provided at the left end of the right door frame (1).

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