An easily disassembled invisible fireproof pipe well door

Abstract

The utility model relates to the technical field of fire door structures, and specifically to an easily detachable invisible fireproof pipe well door. The utility model opens a positioning hole on the door frame, and installs a positioning pin on the door panel. The positioning pin can be inserted into the positioning hole from top to bottom along the axial direction of the positioning hole, so as to form a pin hole match with the positioning hole. When the fire door hinders the fire prevention work and the door panel needs to be quickly removed to open the escape passage, after opening the door panel, the door panel can be immediately lifted up to pull the positioning pin out of the positioning hole, and then the door panel can be removed. The entire process of removing the door panel does not require the use of additional tools for assistance, which is quick and convenient; at the same time, during the normal use of the door panel, based on the downward pressure of gravity, the positioning pin can be stably rotated and installed in the positioning hole without the action of upward external force, and has no effect on the normal use of the fire door.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof door structures, in particular to an easily disassembled invisible fireproof pipe well door. Background Art

[0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed between fire compartments, evacuation stairwells, vertical shafts, etc.

[0003] In addition to the functions of ordinary doors, fire doors also have the functions of preventing the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel. Patent CN213391863U discloses a fire door, which solves the problem that the existing fire doors cannot automatically alarm, and can then sound an alarm in advance to buy more time for people to escape. The above-mentioned prior art uses hinges to hinge the door panel and the door frame together, so that corresponding tools need to be used for disassembly and assembly during the installation and disassembly process. Although the above-mentioned prior art realizes the connection between the door panel and the door frame through hinges, in the actual installation process, due to the different building structures at the installation site, the door panel will be blocked by the wall and the opening angle will be limited, resulting in a certain amount of reduction in the flow of people through the fire door. In the case of such a limited opening angle, when facing a large number of escaping people, the fire door at this time will hinder the flow of people, prolong the time for people to escape, and increase the difficulty of escape. In this situation, you can find the corresponding tools to remove the hinges or remove them violently, but in the panic of escaping, it is difficult to find the corresponding tools; at the same time, due to the large number of people escaping, violent removal takes a long time and may also cause harm to the escapees. It can be seen that both methods will increase the time of escape. In view of this, the current method of connecting door frames and door panels with hinges still has the disadvantage of being difficult to quickly disassemble and assemble. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides an easily disassembled invisible fireproof pipe well door. The utility model can quickly disassemble and assemble the fireproof door without using additional tools, thereby improving the efficiency of disassembly and assembly.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An easily disassembled invisible fireproof pipe well door comprises a door frame and a door panel rotatably mounted on the door frame via a swivel shaft; a positioning hole is provided on one side of the door frame, and the axial direction of the positioning hole is parallel to the height direction of the door frame; a positioning pin is fixedly mounted on the door panel, the positioning pin is inserted into the positioning hole from top to bottom along the axial direction of the positioning hole and forms a coaxial swivel fit with the positioning hole, and the positioning pin constitutes the swivel shaft.

[0007] As a further solution of the utility model: the locating pin is installed on the door panel through a hinge assembly; the hinge assembly includes a double-link hinge, the axial direction of the hinge axis of the double-link hinge is parallel to the height direction of the door frame, and the locating pin is fixedly installed at the front end of the double-link hinge; a through hole is provided at the tail end of the double-link hinge, and the axial direction of the through hole is parallel to the axial direction of the locating hole; a cylindrical pin is fixedly installed on the side of the door frame, and the cylindrical pin is inserted into the through hole from top to bottom and forms a coaxial rotating fit with the through hole.

[0008] As a further solution of the utility model: the double-link hinge is divided into two groups, and the two first links in the two groups of double-link hinge are fixedly connected to each other through a first rotating shaft, and the first rotating shaft constitutes the hinge axis of the two groups of double-link hinge; the two first links are fixedly installed at both ends of the first rotating shaft, and the projections of the two first links along the axial direction of the first rotating shaft overlap with each other;

[0009] The two second connecting rods in the two sets of double-link hinges are fixedly connected to each other through a first sleeve, the first sleeve is coaxially sleeved on the outside of the first rotating shaft, and the two ends of the first sleeve are respectively abutted against the corresponding first connecting rods; the projections of the two second connecting rods along the axial direction of the first sleeve coincide with each other.

[0010] As a further solution of the utility model: a supporting ear is installed on the door frame, and the positioning hole is opened on the supporting ear.

[0011] As a further solution of the utility model: positioning rings for limiting corresponding insertion depths are coaxially mounted on the pin bodies of the positioning pin and the cylindrical pin.

[0012] As a further solution of the utility model: a hanging ear is installed at the inner edge of the door panel, and a cylindrical pin is fixedly installed on the hanging ear.

[0013] As a further solution of the utility model: a threaded hole is provided on the hanging ear, an external thread is provided on the top end of the cylindrical pin, and the cylindrical pin is fixedly mounted on the hanging ear through the threaded cooperation between the external thread and the threaded hole.

[0014] As a further solution of the utility model: a plurality of windows are provided on the door panel, and transparent glass is installed on the windows.

[0015] As a further solution of the present invention: the door frame and the door panel are both in the shape of a cuboid.

[0016] As a further solution of the present invention: the door frame and the door panel are both made of aluminum alloy.

[0017] As a further solution of the utility model: two second connecting rods are fixedly installed at the middle position of the first sleeve.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model opens a positioning hole on the door frame, and installs a positioning pin on the door panel. The positioning pin can be inserted into the positioning hole from top to bottom along the axial direction of the positioning hole, so as to form a pin hole match with the positioning hole. When the fire door hinders the fire prevention work and the door panel needs to be quickly removed to open the escape passage, after opening the door panel, the door panel can be immediately lifted up to pull the positioning pin out of the positioning hole, and then the door panel can be removed. The entire process of removing the door panel does not require the use of additional tools for assistance, which is quick and convenient; at the same time, during the normal use of the door panel, based on the downward pressure of gravity, the positioning pin can be stably rotated and installed in the positioning hole without the action of upward external force, which has no effect on the normal use of the fire door.

[0020] 2. The utility model uses a double-link hinge to connect the door frame and the door panel, which can increase the opening and closing degree of the door panel while ensuring that the door panel can be opened normally. When the door frame is embedded in the wall, when the door panel is opened, the side wall of the door panel will press against the door panel, thereby limiting the opening angle of the door panel. The installation of the double-link hinge can replace the rotation of the first link when the first link is blocked by the wall and cannot rotate, and drive the door panel to continue rotating, thereby increasing the opening degree of the door panel, so that the door panel can fit the wall after multiple rotations, and achieve the purpose of maximizing the flow of people in the passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 for Figure 1 Enlarged view of point A in .

[0023] Figure 3 It is a schematic diagram of the split structure of the hanging ear and the cylindrical pin in the utility model.

[0024] Figure 4 It is a schematic diagram of the split structure of the support ear and the positioning pin in the utility model.

[0025] Figure 5 It is a schematic diagram of the split structure of the double-link hinge in the utility model.

[0026] Figure 6This is a schematic diagram of the structure of the door panel in the utility model when it is in an open state.

[0027] In the figure: 1. door frame; 11. supporting ear; 111. positioning hole; 2. positioning pin; 3. double-link hinge; 31. first connecting rod; 32. second connecting rod; 321. through hole; 33. first rotating shaft; 34. first shaft sleeve; 4. door panel; 41. hanging ear; 411. cylindrical pin; 5. positioning ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 to Figure 6 In the embodiment of the utility model, an easily disassembled invisible fireproof pipe well door comprises a rectangular hollow door frame 1. Two supporting ears 11 are installed on the inner side surface of one side of the door frame 1 from top to bottom by screws. The supporting ear 11 is an L-shaped block, and a positioning hole 111 is opened on the upper end surface of the supporting ear 11, and the hole axis direction of the positioning hole 111 is parallel to the height direction of the door frame 1.

[0030] The double-link hinge 3 includes a first link 31 and a second link 32 hinged to each other, and the hinge axis of the double-link hinge 3 is parallel to the height direction of the door frame 1. The positioning pin 2 is fixedly mounted at the free end of the first link 31, i.e., the front end of the double-link hinge 3; a through hole 321 is provided at the free end of the second link 32, i.e., the rear end of the double-link hinge 3, and the axial direction of the through hole 321 is parallel to the axial direction of the positioning hole 111.

[0031] The utility model uses two sets of double-link hinges 3, and a certain combination of the two sets of double-link hinges 3 is applied. The two first links 31 in the two sets of double-link hinges 3 are fixedly connected to each other through the first rotating shaft 33, and the first rotating shaft 33 constitutes the hinge axis of the two sets of double-link hinges 3. The two first links 31 are fixedly mounted at both ends of the first rotating shaft 33, and the projections of the two first links 31 along the axial direction of the first rotating shaft 33 overlap with each other, that is, the two first links 31 and the first rotating shaft 33 constitute a U-shaped rod.

[0032] The two second links 32 in the two sets of double-link hinges 3 are fixedly connected to each other through a first sleeve 34. The first sleeve 34 is coaxially sleeved on the outside of the first rotating shaft 33, and the two ends of the first sleeve 34 are respectively abutted against the corresponding first links 31; the projections of the two second links 32 along the axial direction of the first sleeve 34 coincide with each other.

[0033] Two ears 41 are installed on the edge of the inner side of the rectangular door panel 4. The ears 41 are L-shaped blocks. A threaded hole is opened on the lower end surface of the ear 41. An external thread is opened on the top of the cylindrical pin 411. The cylindrical pin 411 is fixedly installed on the ear 41 through the thread cooperation between the external thread and the threaded hole.

[0034] When in use, first install the door frame 1 at the set pipe well position, flush with the wall, and then achieve the purpose of invisibility. Then hold the first sleeve 34, align the positioning pins 2 on the two first connecting rods 31 with the positioning holes 111 on the support ears 11, and then insert the positioning pins 2 into the positioning holes 111, and coaxially fix a positioning ring 5 on the pin body of the positioning pin 2, and the positioning ring 5 abuts against the opening of the positioning hole 111. At this time, the two sets of double-link hinges 3 are installed. Then lift the door panel 4, align the cylindrical pin 411 with the through hole 321, and then insert the cylindrical pin 411 into the through hole 321, and coaxially fix a positioning ring 5 on the positioning pin 2 to limit the depth of the cylindrical pin 411 inserted into the through hole 321. When the door panel 4 is installed, rotate the door panel 4 to embed the door panel 4 into the door frame 1. When it needs to be opened, the door panel 4 can be opened by directly pulling the handle on the door panel 4. The door panel 4 is composed of commonly used fireproof materials.

[0035] The utility model opens a positioning hole 111 on the door frame 1, and installs a positioning pin 2 on the door panel 4. The positioning pin 2 can be inserted into the positioning hole 111 from top to bottom along the axial direction of the positioning hole 111, so as to form a pin hole match with the positioning hole 111. When the fire door hinders the fire prevention work and the door panel 4 needs to be quickly removed to open the escape passage, after opening the door panel 4, the door panel 4 can be immediately lifted up to pull the positioning pin 2 out of the positioning hole 111, and then the door panel 4 can be removed. The whole process of removing the door panel 4 does not require the use of additional tools for assistance, which is quick and convenient; at the same time, during the normal use of the door panel 4, based on the downward pressure of gravity, the positioning pin 2 can be stably rotated and installed in the positioning hole 111 without the action of an upward external force, which has no effect on the normal use of the fire door. In order to be applicable to more scenarios, the dimensions of each accessory of the utility model need to be measured on site and manufactured according to the measurement results.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An easily disassembled invisible fireproof pipe well door, characterized in that: The invention comprises a door frame (1), and a door panel (4) rotatably mounted on the door frame (1) via a rotating shaft; a positioning hole (111) is provided on one side of the door frame (1), and the axial direction of the positioning hole (111) is parallel to the height direction of the door frame (1); a positioning pin (2) is fixedly mounted on the door panel (4), the positioning pin (2) is inserted into the positioning hole (111) from top to bottom along the axial direction of the positioning hole (111) and forms a coaxial rotating fit with the positioning hole (111), and the positioning pin (2) constitutes the rotating shaft.

2. The easily detachable invisible fireproof pipe well door according to claim 1, characterized in that: The positioning pin (2) is installed on the door panel (4) through a hinge assembly; the hinge assembly includes a double-link hinge (3), the hinge axis of the double-link hinge (3) is axially parallel to the height direction of the door frame (1), and the positioning pin (2) is fixedly installed at the front end of the double-link hinge (3); a through hole (321) is opened at the rear end of the double-link hinge (3), and the axial direction of the through hole (321) is parallel to the axial direction of the positioning hole (111); a cylindrical pin (411) is fixedly installed on the side of the door frame (1), and the cylindrical pin (411) is inserted into the through hole (321) from top to bottom and forms a coaxial rotation fit with the through hole (321).

3. The easily detachable invisible fireproof pipe well door according to claim 2, characterized in that: The double-link hinge (3) is divided into two groups. The two first links (31) in the two groups of double-link hinges (3) are fixedly connected to each other via a first rotating shaft (33). The first rotating shaft (33) constitutes the hinge axis of the two groups of double-link hinges (3). The two first links (31) are respectively fixedly mounted at both ends of the first rotating shaft (33), and the projections of the two first links (31) along the axial direction of the first rotating shaft (33) overlap with each other. The two second connecting rods (32) in the two sets of double-link hinges (3) are fixedly connected to each other via a first shaft sleeve (34); the first shaft sleeve (34) is coaxially sleeved on the outside of the first rotating shaft (33), and the two ends of the first shaft sleeve (34) are respectively in contact with the corresponding first connecting rod (31); the projections of the two second connecting rods (32) along the axial direction of the first shaft sleeve (34) overlap with each other.

4. An easily detachable invisible fireproof manhole door according to any one of claims 1 to 3, characterized in that: The locating pin (2) and the cylindrical pin (411) are both coaxially mounted with locating rings (5) for limiting the corresponding insertion depths.

5. The easily detachable invisible fireproof pipe well door according to claim 4, characterized in that: A supporting ear (11) is installed on the door frame (1), and the positioning hole (111) is opened on the supporting ear (11).

6. The easily detachable invisible fireproof manhole door according to claim 5, characterized in that: A hanging ear (41) is installed at the inner edge of the door panel (4), and a cylindrical pin (411) is fixedly installed on the hanging ear (41).

7. The easily detachable invisible fireproof manhole door according to claim 6, characterized in that: The hanging ear (41) is provided with a threaded hole, the top end of the cylindrical pin (411) is provided with an external thread, and the cylindrical pin (411) is fixedly mounted on the hanging ear (41) through the threaded cooperation between the external thread and the threaded hole.

8. The easily detachable invisible fireproof pipe well door according to claim 7, characterized in that: The door panel (4) is provided with a plurality of windows, and transparent glass is installed on the windows.

9. The easily detachable invisible fireproof pipe well door according to claim 8, characterized in that: The door frame (1) and the door panel (4) are both in the shape of a rectangular parallelepiped.

10. The easily detachable invisible fireproof manhole door according to claim 3, characterized in that: The door frame (1) and the door panel (4) are both made of aluminum alloy.

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