Combined fireproof door

Abstract

The utility model relates to the technical field of combined type fireproof doors, and discloses a combined type fireproof door which comprises a combined mechanism, the combined mechanism comprises a first door body, a second door body and a third door body, through the arranged combined mechanism, the whole fireproof door can be divided into the first door body, the second door body and the third door body so as to be convenient to transport and install, and the combined type fireproof door is convenient to use. The combined steel plates and the first bolts are used in a matched mode, the stability of all parts during connection is enhanced, the door body structure is firmer and more reliable, the fireproof plates are designed in a detachable mode, the fireproof performance of the fireproof door is remarkably improved, convenience is provided for later maintenance work, and in addition, the fireproof performance of the fireproof door is improved. The arrangement of the protective outer frame further ensures the integrity of the fireproof door, the fireproof door can keep good structural integrity and stability in various complex environments, a solid guarantee is provided for fire safety, the door frame and the door leaf are separated and can be installed in a combined mode on site, and the wrapping edge, the exterior facing and the door core can be separated and installed in a combined mode.

Description

Technical Field

[0001] This utility model relates to the field of modular fire door technology, and in particular to a modular fire door. 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 spaces. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, and can prevent the spread of fire for a certain period of time to ensure the evacuation of personnel.

[0003] The applicant discovered through a search that a Chinese patent, "A Modular Fire Door for Easy Assembly," with publication (announcement) number "CN218716352U," discloses a modular fire door. This patent mainly uses an assembly mechanism where two steel pins on the upper end of a steel insert plate are inserted into the insertion hole. Then, two hands press the spring bolts on both sides of the steel insert plate, compressing the spring until the outer end of the spring bolt is fully retracted into the slot. The steel insert plate is then inserted into the slot, at which point the spring bolt pops out from the through hole under the rebound of the compression spring, completing the assembly. Currently, most fire doors are one-piece, which is inconvenient to transport, and most assembly methods are too complex. The application of this assembly mechanism effectively avoids the above problems and improves the practicality of the equipment. However, this patent only uses springs and pins for connection, which is not very stable, and the entire fire door is prone to shaking after connection. Therefore, we propose a modular fire door. Utility Model Content

[0004] The purpose of this utility model is to provide a modular fire door to solve the problem mentioned in the background art, which is that the stability is not high and the entire fire door is prone to shaking after connection by using only springs and pins.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular fire door, comprising a modular mechanism, the modular mechanism comprising a first door body, a second door body, and a third door body, wherein each pair of the first door body, the second door body, and the third door body is connected to a modular steel plate via a slot, and the connection points of the first door body, the second door body, and the third door body are each connected to a first bolt via a second countersunk threaded hole, wherein the second door body and the third door body are connected to a fireproof plate and a protective outer frame via the first countersunk threaded hole and the second bolt, and a lock groove is provided inside the second door body.

[0006] As a preferred embodiment, the insertion slot is located inside one end of the connection between the first door body, the second door body, and the third door body, and the combined steel plate is inserted into the insertion slot.

[0007] As a preferred embodiment, the second countersunk threaded hole is opened on both sides of the connection between the first door body, the second door body and the third door body, and passes through both sides of the combined steel plate, and the first bolt is threadedly connected to the inside of the second countersunk threaded hole.

[0008] As a preferred embodiment, the second countersunk threaded hole is opened on both sides of the connection between the first door body, the second door body and the third door body, and passes through both sides of the combined steel plate, and the first bolt is threadedly connected to the inside of the second countersunk threaded hole.

[0009] As a preferred embodiment, the bottom of the third door is provided with an auxiliary mechanism, which includes a bottom support frame. Both ends of the bottom support frame are threaded with fastening bolts, and the upper end of the fastening bolts is threaded to the bottom of the third door. The bottom support frame has a rotating groove inside, and a through hole runs through the rotating groove.

[0010] As a preferred embodiment, a fixed shaft is fixedly installed inside the perforation, and a steel ball is rotatably connected to the outer wall of the fixed shaft.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the set combination mechanism, the entire fire door can be divided into the first door body, the second door body and the third door body to facilitate transportation and installation. The combination of combined steel plates and first bolts enhances the stability of the connection of each component, making the door structure more robust and reliable. The fireproof plate adopts a detachable design, which not only significantly improves the fire resistance performance of the fire door, but also provides convenience for later maintenance. In addition, the setting of the protective outer frame further ensures the integrity of the fire door, so that it can maintain good structural integrity and stability in various complex environments, providing a solid guarantee for fire safety.

[0013] 2. Through the auxiliary mechanism, the entire fire door can be supported by the bottom support frame. After prolonged use, due to the large weight of the fire door itself, it is prone to settling. Traditional fire doors have the bottom directly in contact with the ground. Once settling occurs, it is very easy to make it difficult or even impossible to open the fire door. This poses a serious threat to personnel evacuation and safety in emergency situations. By setting steel balls, the fire door becomes a rolling friction when in contact with the ground, which greatly reduces the friction and ensures that the fire door can be opened smoothly. This greatly improves the safety and convenience of using the fire door in emergency situations and creates more favorable conditions for the rapid evacuation and safe escape of personnel. Attached Figure Description

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

[0015] Figure 2This is an exploded view of the present invention;

[0016] Figure 3 This is an exploded view of part of the combined mechanism of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the auxiliary mechanism of this utility model;

[0018] Figure 5 This is an exploded view of the auxiliary mechanism of this utility model.

[0019] In the diagram: 1. Combined mechanism; 101. First door body; 102. Second door body; 103. Third door body; 104. First countersunk threaded hole; 105. Second countersunk threaded hole; 106. Insertion groove; 107. Combined steel plate; 108. First bolt; 109. Lock groove; 110. Fireproof board; 111. Protective outer frame; 112. Second bolt; 2. Auxiliary mechanism; 201. Bottom support frame; 202. Fastening bolt; 203. Rotating groove; 204. Through hole; 205. Fixed shaft; 206. Steel ball. Detailed Implementation

[0020] 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. Example 1

[0021] Please see the appendix Figure 1 - Appendix Figure 3A modular fire door includes a modular mechanism 1, which comprises a first door body 101, a second door body 102, and a third door body 103. Each pair of the first door body 101, second door body 102, and third door body 103 is connected to a modular steel plate 107 via a slot 106. The joints of the first door body 101, second door body 102, and third door body 103 are connected to a first bolt 108 via a second countersunk threaded hole 105. The second door body 102 and the third door body 103 are connected to a fireproof plate 110 and a protective outer frame 111 via a first countersunk threaded hole 104 and a second bolt 112. The second door body 102 has a lock groove 109 inside. The slots 106 are formed at the joints of the first door body 101, second door body 102, and third door body 103. Inside one end of the 03 connection, the combined steel plate 107 is inserted into the insertion groove 106. The second countersunk threaded hole 105 is opened on both sides of the connection between the first door body 101, the second door body 102 and the third door body 103, and passes through both sides of the combined steel plate 107. The first bolt 108 is threaded into the inside of the second countersunk threaded hole 105. The first countersunk threaded hole 104 is opened on both sides of the second door body 102 and the third door body 103, and passes through the fireproof plate 110 and the protective outer frame 111. The second bolt 112 is threaded into the inside of the first countersunk threaded hole 104. The fireproof plate 110 abuts against the outer wall of the first door body 101, the second door body 102 and the third door body 103, and the protective outer frame 111 abuts against the outer wall of the fireproof plate 110.

[0022] The first door 101, the second door 102, and the third door 103 are all the same size and have fireproof function. When the fireproof board 110 is installed with the first door 101, the second door 102, and the third door 103, fireproof adhesive will be used to connect them. At the same time, the protective outer frame 111 is also made of fireproof material.

[0023] Specifically, the fire door can be divided into a first door body 101, a second door body 102 and a third door body 103 to facilitate transportation and installation. The stability of the connection is improved by combining steel plates 107 with first bolts 108. The fire resistance performance of the fire door is increased by the detachable fireproof plate 110, which also facilitates later maintenance. The entire protective frame 111 is used to ensure the integrity of the fire door. Example 2

[0024] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 4 and attached Figure 5Furthermore, based on Embodiment 1, an auxiliary mechanism 2 is provided at the bottom of the third door body 103. The auxiliary mechanism 2 includes a bottom support frame 201. Both ends of the bottom support frame 201 are threadedly connected to fastening bolts 202. The upper end of the fastening bolts 202 is threadedly connected to the bottom of the third door body 103. A rotating groove 203 is provided inside the bottom support frame 201. A through hole 204 is passed through the rotating groove 203. A fixed shaft 205 is fixedly installed inside the through hole 204. A steel ball 206 is rotatably connected to the outer wall of the fixed shaft 205.

[0025] The size of the steel ball 206 is adapted to the rotating groove 203, so that the steel ball 206 can rotate smoothly along the fixed shaft 205 in the rotating groove 203. At the same time, the bottom of the steel ball 206 extends beyond the bottom of the bottom support frame 201, ensuring that the bottom support frame 201 will not hit the ground when the fire door sinks.

[0026] Specifically, the bottom support frame 201 can support the entire fire door. After long-term use, the fire door will settle due to its excessive weight. The bottom of the traditional fire door is prone to hitting the ground, making it difficult to open. The steel ball 206 can ensure that the fire door can be opened smoothly and improve safety.

[0027] The working principle of this utility model is as follows: This utility model is a combined fire door. First, the insertion slots 106 of the first door body 101, the second door body 102, and the third door body 103 are inserted into the combined steel plate 107. Then, the first bolt 108 is tightened inside the second countersunk threaded hole 105 to complete the assembly of the fire door. The bottom support frame 201 is tightened to the bottom of the third door body 103 by the fastening bolt 202. Then, fireproof adhesive is applied to the fireproof board 110 and pasted on both sides of the first door body 101, the second door body 102, and the third door body 103. Then, the protective outer frame 111 is fitted onto the outer wall of the fireproof board 110. Finally, the second bolt 112 is tightened inside the first countersunk threaded hole 104. After long-term use, the fire door will settle due to its excessive weight. At this time, the steel ball 206 will contact the ground to ensure that the fire door can be opened smoothly.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular fire door, comprising a modular assembly mechanism (1), characterized in that: The combined mechanism (1) includes a first door (101), a second door (102) and a third door (103). Each of the first door (101), the second door (102) and the third door (103) is connected to a combined steel plate (107) through a plug groove (106). The first door (101), the second door (102) and the third door (103) are connected to a first bolt (108) through a second countersunk threaded hole (105). The second door (102) and the third door (103) are connected to a fireproof plate (110) and a protective outer frame (111) through a first countersunk threaded hole (104) and a second bolt (112). The second door (102) has a lock groove (109) inside.

2. A combined fire door according to claim 1, characterized in that: The insertion slot (106) is located inside one end of the connection between the first door body (101), the second door body (102) and the third door body (103), and the combined steel plate (107) is inserted into the insertion slot (106).

3. A combined fire door according to claim 2, characterized in that: The second countersunk threaded hole (105) is opened on both sides of the connection between the first door body (101), the second door body (102) and the third door body (103), and passes through both sides of the combined steel plate (107). The first bolt (108) is threaded into the inside of the second countersunk threaded hole (105).

4. A combined fire door according to claim 3, characterized in that: The first countersunk threaded hole (104) is opened on both sides of the second door (102) and the third door (103), and passes through the fireproof plate (110) and the protective outer frame (111). The second bolt (112) is threaded into the inside of the first countersunk threaded hole (104). The fireproof plate (110) abuts against the outer wall of the first door (101), the second door (102) and the third door (103). The protective outer frame (111) abuts against the outer wall of the fireproof plate (110).

5. A combined fire door according to claim 1, characterized in that: The bottom of the third door (103) is provided with an auxiliary mechanism (2), which includes a bottom support frame (201). Both ends of the bottom support frame (201) are threaded with fastening bolts (202). The upper end of the fastening bolts (202) is threaded to the bottom of the third door (103). The bottom support frame (201) has a rotating groove (203) inside, and a through hole (204) runs through the rotating groove (203).

6. A combined fire door according to claim 5, characterized in that: A fixed shaft (205) is fixedly installed inside the perforation (204), and a steel ball (206) is rotatably connected to the outer wall of the fixed shaft (205).

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