Fireproof door for small-diameter mechanical connection channel and construction method of fireproof door

Abstract

The invention provides a fireproof door for a small-diameter mechanical connection channel and a construction method of the fireproof door, and relates to the technical field of connection channels. According to the device, a first door structure comprises a first door leaf and a first door frame, the first door leaf is arranged in the first door frame, a first groove is formed in the side wall, close to the first door leaf, of the first door frame, and the side wall of the first door leaf abuts against the first groove; one side wall of the second door structure makes contact with one side wall of the first door structure to form a contact part, unfilled corner structures are arranged on the vertex angles, away from the contact part, of the second door structure and the first door structure, the second door structure comprises a second door leaf, and the second door leaf and the first door leaf are arranged in a staggered mode in the thickness direction of the first door frame; the middle column structure is vertically arranged in the length direction of the first door structure and arranged in the contact part. The device solves the problems that the evacuation width is limited, the personnel evacuation speed is low in the emergency evacuation escape process, and personal safety cannot be fully guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of communication passages, and in particular to a fire door used for a small-diameter mechanical communication passage and a construction method thereof. Background Art

[0002] In the field of communication channel technology, the technology commonly used in communication channels is to arrange fire doors diagonally. The diagonally arranged fire doors cannot directly face the channel entrance. In the event of a fire or other emergency, when a large number of people need to evacuate quickly through the communication channel, the limited evacuation width of the diagonal fire door not only increases the difficulty of personnel passage, but also causes problems such as obstructed vision and misjudgment of direction, resulting in a slow evacuation speed during the escape process and inability to fully guarantee personal safety. Therefore, there is an urgent need for a fire door for a small-diameter mechanical communication channel and a construction method thereof, which solves the problem that the evacuation width of the diagonal fire door in the prior art is limited, the evacuation speed of personnel is slow during emergency evacuation, and personal safety cannot be fully guaranteed. Summary of the invention

[0003] The purpose of the present invention is to provide a fire door for a small diameter mechanical communication passage and a construction method thereof to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] In a first aspect, the present application provides a fire door for a small-diameter mechanical communication passage, comprising:

[0005] The first door structure includes a first door leaf and a first door frame, the first door leaf is arranged in the first door frame, a first groove is formed on a side wall of the first door frame close to the first door leaf, and the side wall of the first door leaf abuts against the first groove;

[0006] a second door structure, wherein a side wall of the second door structure contacts a side wall of the first door structure to form a contact portion, a notch structure is provided at a top corner of the second door structure and the first door structure away from the contact portion, and the second door structure comprises a second door leaf, and the second door leaf and the first door leaf are staggered along a thickness direction of the first door frame;

[0007] A center column structure, wherein the center column structure is vertically arranged along the length direction of the first door structure, the center column structure is arranged in the contact portion, and the center column structure fixes the first door structure and the second door structure.

[0008] In a second aspect, the present application also provides a fire door construction method for a small diameter mechanical communication passage, comprising:

[0009] A door frame wall is set on the pipe segment structure of the communication channel, and positions for the first door leaf, the first door frame, the second door leaf and the second door frame are reserved;

[0010] The first door frame and the second door frame are respectively installed on the door frame wall, the first door leaf is installed in the first door frame, and the second door leaf is installed in the second door frame;

[0011] The center column structure is arranged in the contact part between the first door frame and the second door frame, the force-bearing surface of the center column structure is arranged in the direction facing the wind pressure of the communication channel, the upper and lower ends of the center column structure are connected to the embedded parts of the pipe segment, and slurry is injected into the center column structure and the contact part for fixing.

[0012] The beneficial effects of this device are:

[0013] The present invention introduces a missing corner structure design, and by adjusting the maximum compression distance between the first door structure and the second door structure in the communication channel, the size of the first door leaf and the second door leaf is maximized. At the same time, the center column structure is embedded in the contact portion between the first door structure and the second door structure, which solves the problem of limited lateral space size and ensures that the maximum size of the door structure design can be achieved. The design of the maximum size solves the limitation of the communication channel size limit after the oblique setting in the prior art, so as to ensure smooth passage when people evacuate. Furthermore, the joint setting of the missing corner structure and the maximum size setting solves the problem that the evacuation width of the oblique fire door in the prior art is limited, the evacuation speed of people is slow during emergency evacuation, and personal safety cannot be fully guaranteed.

[0014] Other features and advantages of the present invention will be described in the following description, and some will become apparent from the description, or will be understood by implementing the embodiments of the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a fire door used for a small-diameter mechanical communication passage;

[0017] Figure 2 A top view of a fire door used for a small diameter mechanical communication passage;

[0018] Figure 3 The cross-sectional view of a fire door used for a small diameter mechanical communication passage;

[0019] Figure 4 It is a schematic diagram of the construction method of fire doors for small diameter mechanical communication passages;

[0020] Markings in the figure: 1. first door structure; 2. second door structure; 3. center column structure; 4. segment embedded parts; 5. door frame embedded parts; 6. door frame wall; 7. locking structure; 11. first door leaf; 12. first door frame; 21. second door leaf; 22. second door frame; 51. embedded anchor plate; 52. embedded anchor rib; 121. first column; 122. second column; 123. cross plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] Embodiment 1:

[0024] like Figure 1As shown, a fire door for a small-diameter mechanical communication passage comprises: the first door structure 1 comprises a first door leaf 11 and a first door frame 12, the first door leaf 11 is arranged in the first door frame 12, and a first groove is provided on the side wall of the first door frame 12 close to the first door leaf 11, and the side wall of the first door leaf 11 abuts against the first groove; a side wall of the second door structure 2 contacts with a side wall of the first door structure 1 and forms a contact portion, and a notch structure is provided on the top corners of the second door structure 2 and the first door structure 1 away from the contact portion, and the second door structure 2 comprises a second door leaf 21, and the second door leaf 21 and the first door leaf 11 are staggered along the thickness direction of the first door frame 12; the center column structure 3 is vertically arranged along the length direction of the first door structure 1, and the center column structure 3 is arranged in the contact portion, and the center column structure 3 fixes the first door structure 1 and the second door structure 2. In the present invention: by adjusting the distance between the first door structure 1 and the second door structure 2 to the minimum distance that meets the requirements of the specification, and setting the lateral space between the first door structure 1, the second door structure 2 and the center column structure 3 to the minimum, it is ensured that the limit size of the door structure design is achieved, and the design of the limit size solves the limitation of the limit size of the connecting channel after the oblique setting in the prior art, so as to ensure smooth passage when people evacuate. In order to meet the requirements of the specification, the top corners of the first door structure 1 and the second door structure 2 away from the contact part are set as a missing corner structure, which solves the problem of the two corners of the door structure being limited. The joint setting of the missing corner structure and the limit size setting solves the problem that the evacuation width of the oblique fire door in the prior art is limited, the evacuation speed of people is slow during emergency evacuation, and personal safety cannot be fully guaranteed.

[0025] Furthermore, the range of the missing corner structures of the second door structure 2 and the first door structure 1 is less than 300 mm.

[0026] To clarify the specific structure of the second door structure 2, the second door structure 2 includes a second door frame 22, the second door frame 22 is arranged outside the second door leaf 21, and the side wall of the second door frame 22 close to the second door leaf 21 is provided with a second groove, and the side wall of the second door leaf 21 abuts against the second groove. Preferably, the gap width between the second door frame 22 and the door frame wall 6 is 10-12 mm.

[0027] like Figure 2As shown, the cross-sections of the two side walls of the first door frame 12 and the second door frame 22 are both inverted "L" shape, the first door frame 12 and the second door frame 22 are staggered along the thickness direction of the first door leaf 11, and one side wall of the first door frame 12 and one side wall of the second door frame 22 are in contact and form a contact portion, and the contact portion is used to fill the grouting liquid. The arrangement method of the first door frame 12 and the second door frame 22 can not only make the space size of the first door leaf 11 and the second door leaf 21 larger, but also make the center column structure 3 be arranged in the contact portion to reduce the lateral space size.

[0028] In order to clarify the specific structure of the middle column structure 3, the cross section of the middle column structure 3 is in the shape of an "I", the middle column structure 3 is arranged in the contact portion, and the upper and lower ends of the middle column structure 3 are connected to the communication channel through the pipe segment embedded parts 4. The middle column structure 3 can be used to replace the steel-concrete structure in the technical field of the communication channel, fix the first door structure 1 and the second door structure 2, meet the requirements of wind pressure resistance, and realize the minimum lateral space size requirement.

[0029] Preferably, the thickness of the center pillar structure 3 is greater than or equal to the thickness of the first door frame 12 or the second door frame 22 .

[0030] like Figure 3 As shown, the first door frame 12 includes a first column 121, a second column 122 and two horizontal plates 123. The first column 121 and the second column 122 are arranged opposite to each other, and the two horizontal plates 123 are arranged opposite to each other. The two ends of the two horizontal plates 123 are respectively fixedly connected to the ends of the first column 121 and the second column 122 to form a rectangle.

[0031] In this step, the side wall surfaces of the first column 121 and the two horizontal plates 123 are provided with door frame embedded parts 5, the door frame embedded parts 5 extend along the door frame wall 6, and the first door frame 12 is connected to the door frame wall 6 through the door frame embedded parts 5. Further, the door frame embedded parts 5 include an embedded part anchor plate 51, one end of the embedded part anchor plate 51 is provided on the side wall surfaces of the first column 121 and the two horizontal plates 123, and the other end of the embedded part anchor plate 51 is provided with a plurality of embedded part anchor bars 52, and the other ends of the plurality of embedded part anchor bars 52 are connected to the door frame wall 6.

[0032] In this structure, the side wall surface of the second door leaf 21 is provided with a locking structure 7, and the locking structure 7 locks the second door leaf 21 with the second door frame 22. According to the structure of the second door structure 2, the position of the locking structure 7 is adjusted, and the locking structure 7 is arranged on the second door leaf 21, which avoids the missing corner structure and ensures that the second door leaf 21 can close the fire door in time during evacuation, effectively isolates the fire source and smoke, and prevents the crowd from being harmed by high temperature and toxic smoke, thereby protecting the safety of personnel.

[0033] Preferably, the opening angles of the first door leaf 11 and the second door leaf 21 are not less than 90 degrees.

[0034] Embodiment 2: A fire door construction method for a small-diameter mechanical communication passage, comprising:

[0035] like Figure 4 As shown in the figure, the method includes steps S1 to S3, including:

[0036] S1: a door frame wall 6 is arranged on the pipe segment structure of the communication channel, and positions of a first door leaf 11, a first door frame 12, a second door leaf 21 and a second door frame 22 are reserved;

[0037] S2: installing the first door frame 12 and the second door frame 22 on the door frame wall 6 respectively, installing the first door leaf 11 in the first door frame 12, and installing the second door leaf 21 in the second door frame 22;

[0038] In order to clarify the specific construction method of the door frame wall 6, step S2 includes S21 to S24, which are specifically:

[0039] S21: connecting the first steel plate to the second steel plate through the inner arc steel plate;

[0040] In this step, the first steel plate, the inner arc steel plate and the second steel plate are all connected by full welding to form a 250 mm thick steel structure door frame wall.

[0041] S22: alternately filling fireproof blocks on the inner walls of the first steel plate and the second steel plate;

[0042] Preferably, the fireproof block is made of fireproof material.

[0043] S23: injecting cement mortar into the first steel plate, the inner arc steel plate and the second steel plate for reinforcement;

[0044] S24: Apply fire-proof and anti-corrosion materials on the outer surfaces of the first steel plate, the second steel plate and the inner arc steel plate.

[0045] In order to clarify the specific construction method of the door frame wall 6, step S2 includes S25, which specifically includes:

[0046] S25: The door frame wall 6 is a prefabricated assembled structure, and the prefabricated assembled structure is fixedly connected to the pipe segment structure of the communication channel by bolts.

[0047] In this step, the prefabricated assembly structure greatly shortens the construction period of the door frame wall 6. The prefabricated components and the pipe segments are fixedly connected using M20 bolts through the bolt sleeves reserved at the corresponding positions of the pipe segments to complete the assembly of the door frame wall 6.

[0048] S3: The center column structure 3 is arranged in the contact part between the first door frame 12 and the second door frame 22, the force-bearing surface of the center column structure 3 is arranged in the direction facing the wind pressure of the communication channel, the upper and lower ends of the center column structure 3 are connected to the segment embedded parts 4, and slurry is injected into the center column structure 3 and the contact part for fixing.

[0049] In this step, the center column structure 3 is a hot-rolled steel structure covered with a cold-rolled hot-dip galvanized steel plate structure.

[0050] In order to clarify the specific method of injecting slurry into the middle column structure 3 and the contact part for fixing, step S3 includes S31 to S14, which are:

[0051] S31: vertically opening a plurality of door frame holes on the wall surface of the first door frame 12;

[0052] S32: Grouting process: inject slurry into the door frame hole of the first door frame 12, and the slurry flows into the center column structure 3 and the second door frame 22. After the slurry fills the door frame hole of the first door frame 12, stop grouting, vibrate the slurry, and wait for fixation;

[0053] In this step, the slurry is cement, perlite, sand and lime, and the volume ratio of cement:perlite:sand:lime is 1:1.5:1:0.1.

[0054] S33: Repeat the grouting process until the first door frame 12, the second door frame 22 and the center column structure 3 are fixed.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fire door for a small diameter mechanical communication channel, characterized in that: include: A first door structure (1), the first door structure (1) comprising a first door leaf (11) and a first door frame (12), the first door leaf (11) being arranged in the first door frame (12), a first groove being provided on a side wall of the first door frame (12) close to the first door leaf (11), the side wall of the first door leaf (11) being in contact with the first groove; a second door structure (2), wherein a side wall of the second door structure (2) contacts a side wall of the first door structure (1) to form a contact portion, and a notch structure is provided at top corners of the second door structure (2) and the first door structure (1) away from the contact portion, and the second door structure (2) comprises a second door leaf (21), and the second door leaf (21) and the first door leaf (11) are staggered along the thickness direction of the first door frame (12); A center column structure (3), the center column structure (3) is vertically arranged along the length direction of the first door structure (1), the center column structure (3) is arranged in the contact portion, and the center column structure (3) fixes the first door structure (1) and the second door structure (2).

2. The fire door for small diameter mechanical communication passage according to claim 1, characterized in that: The range of the missing corner structure of the second door structure (2) and the first door structure (1) is less than 300 mm.

3. The fire door for small diameter mechanical communication passage according to claim 1, characterized in that: The second door structure (2) comprises a second door frame (22), the second door frame (22) being arranged outside the second door leaf (21), the second door frame (22) being provided with a second groove on a side wall close to the second door leaf (21), and the side wall of the second door leaf (21) being in contact with the second groove.

4. The fire door for small diameter mechanical communication passage according to claim 3, characterized in that: The cross-sections of the side walls of the first door frame (12) and the second door frame (22) are both in an inverted "L" shape. The first door frame (12) and the second door frame (22) are staggered along the thickness direction of the first door leaf (11). A side wall of the first door frame (12) and a side wall of the second door frame (22) are in contact with each other to form a contact portion, and the contact portion is used to fill grouting liquid.

5. The fireproof door for small diameter mechanical communication passage according to claim 1, characterized in that: The cross section of the middle column structure (3) is in the shape of an "I" character. The middle column structure (3) is arranged in the contact portion. The upper and lower ends of the middle column structure (3) are connected to the communication channel via the pipe segment embedded parts (4).

6. The fireproof door for small diameter mechanical communication passage according to claim 3, characterized in that: The thickness of the center column structure (3) is greater than or equal to the thickness of the first door frame (12) or the second door frame (22).

7. A fire door construction method for a small diameter mechanical communication channel, characterized in that: include: A door frame wall (6) is arranged on the pipe segment structure of the communication channel, and positions of a first door leaf (11), a first door frame (12), a second door leaf (21) and a second door frame (22) are reserved; The first door frame (12) and the second door frame (22) are respectively installed on the door frame wall (6), the first door leaf (11) is installed in the first door frame (12), and the second door leaf (21) is installed in the second door frame (22); The center column structure (3) is arranged in the contact portion between the first door frame (12) and the second door frame (22), the force-bearing surface of the center column structure (3) is arranged in the direction facing the wind pressure of the communication channel, the upper and lower ends of the center column structure (3) are connected to the pipe segment embedded parts (4), and slurry is injected into the center column structure (3) and the contact portion for fixing.

8. The fire door construction method for a small diameter mechanical communication passage according to claim 7, characterized in that: Injecting slurry into the middle column structure (3) and the contact part for fixing, comprising: A plurality of door frame holes are vertically provided on the wall surface of the first door frame (12); Grouting process: injecting slurry into the door frame hole of the first door frame (12), the slurry flowing into the center column structure (3) and the second door frame (22), and after the slurry fills the door frame hole of the first door frame (12), stopping the grouting, vibrating the slurry, and waiting for fixation; The grouting process is repeated until the first door frame (12), the second door frame (22) and the center column structure (3) are fixed.

9. The fire door construction method for a small diameter mechanical communication passage according to claim 8, characterized in that: The slurry comprises cement, perlite, sand and lime, wherein the volume ratio of cement:perlite:sand:lime is 1:1.5:1:0.

1.

10. The fire door construction method for a small diameter mechanical communication passage according to claim 7, characterized in that: A door frame wall (6) is arranged on the pipe segment structure of the communication channel, and positions of a first door leaf (11), a first door frame (12), a second door leaf (21) and a second door frame (22) are reserved, including: Connecting the first steel plate to the second steel plate via the inner arc steel plate; The inner walls of the first steel plate and the second steel plate are alternately filled with fireproof blocks; Injecting cement mortar into the first steel plate, the inner arc steel plate and the second steel plate for reinforcement; The outer surfaces of the first steel plate, the second steel plate and the inner arc steel plate are all coated with fireproof and anti-corrosion materials.

Images