An anti-interference automatic closing small door and its fireproof roller shutter and track matching structure

Abstract

The present invention discloses an anti-interference automatic closing small door and its fireproof roller shutter and track matching structure, which relates to the technical field of fireproof roller shutter construction. The anti-interference automatic closing small door comprises a mounting surface, a door body and a limit pin; the door body is rotatably connected to the mounting surface through a pin shaft, and a torsion spring is provided on the pin shaft, which enables the door body to have a rotational movement tendency; the limit pin is slidably connected to the mounting surface up and down, the bottom end of the limit pin protrudes from the bottom edge of the mounting surface, and the top end of the limit pin has an elbow, which hooks the top edge of the door body. The fireproof roller shutter and track matching structure comprises an I-beam track and a fireproof roller shutter body; a bypass opening for avoiding the I-beam track is provided at the bottom edge of the fireproof roller shutter body, and anti-interference automatic closing small doors are installed on both sides of the bypass opening. The present invention can close the fireproof gap when the fireproof roller shutter body is completely dropped by opening the bypass opening to avoid the track, and by using the anti-interference automatic closing small door, so as to achieve a good isolation effect.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof rolling shutter construction, and more particularly to an anti-interference automatic closing small door and a fireproof rolling shutter and track matching structure thereof. Background Art

[0002] With the development of national modernization, various types of industrial buildings are accelerating their development. In the process of construction, people pay more and more attention to fire prevention. Fire shutter doors are mainly used in fire partitions of various industrial, civil and public buildings. They are used to prevent fire, smoke, suppress the spread of fire, and protect personnel evacuation. They are widely used in high-rise buildings, large shopping malls and other crowded places.

[0003] In addition, compared with general rolling shutter doors, fireproof rolling shutter doors have stricter fireproof requirements and must comply with the national standard TF3 fireproof grade requirements. The fireproof rolling shutter with a fire resistance limit of not less than 3 hours is a special fireproof rolling shutter, with the temperature rise of the back-fire surface as the judgment condition. The special fireproof rolling shutters on the market now basically meet the minimum standards of special fireproof requirements, and the existing special fireproof rolling shutters include single-track single-curtain fireproof rolling shutter doors, double-track double-curtain fireproof rolling shutter doors, aerosol fireproof rolling shutter doors, evaporative fireproof rolling shutter doors, water mist fireproof rolling shutter doors, etc.

[0004] One of the main features of fire shutter doors is isolation. For some special places, such as theme parks, track structures for amusement facilities need to be set up. When the fire shutter door descends, it cannot fall to the bottom due to the existence of the track. If an escape opening is opened on the fire shutter door, isolation loopholes will appear, which has a great impact on the fire prevention effect.

[0005] Therefore, how to avoid obstacles such as tracks and other structures to meet the fire protection coordination between tracks and fireproof rolling shutters is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention provides an anti-interference automatic closing small door and its fireproof roller shutter and track matching structure, aiming to solve the above technical problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] An anti-interference automatic closing small door comprises a mounting surface; and further comprises:

[0009] A door body, wherein the door body is rotatably connected to the mounting surface via a pin shaft, and a torsion spring is provided on the pin shaft, and the torsion spring enables the door body to have a rotational movement tendency;

[0010] A limit pin is slidably connected to the mounting surface up and down, the bottom end of the limit pin protrudes from the bottom edge of the mounting surface, the top end of the limit pin has an elbow, the elbow hooks the top edge of the door body, so that the door body is close to the mounting surface and compresses the torsion spring.

[0011] Through the above technical scheme, the present invention provides a small door that can automatically close as the position of the mounting surface changes, and can be used in conjunction with the required structure. When the position of the mounting surface drops to contact other surfaces, the limit pin is pushed upward, thereby causing the elbow to separate from the door body. Under the action of the torsion spring, the door body automatically closes. The overall structure is simple and ingenious, and can achieve automatic closing without providing any power device.

[0012] Preferably, in the above-mentioned anti-interference automatic closing small door, when the limit pin moves upward until its bottom end is flush with the bottom edge of the mounting surface, the elbow is separated from the top edge of the door body, so as to satisfy the limit pin's limitation and release of the door body.

[0013] Preferably, in the above-mentioned anti-interference automatic closing small door, at least two upper and lower corresponding ear plates are fixed on the installation surface, and the limit pin passes through the ear plates, so that the installation of the limit pin can be realized simply and conveniently.

[0014] Preferably, in the above-mentioned anti-interference automatic closing small door, upper and lower corresponding pin shaft mounting blocks are fixed on the mounting surface, and both ends of the pin shaft are rotatably connected to the two pin shaft mounting blocks respectively, so that the installation of the pin shaft can be realized simply and conveniently.

[0015] Preferably, in the above-mentioned anti-interference automatic closing small door, two mounting sleeves arranged up and down are fixed on the shaft body of the pin shaft, and the two mounting sleeves are fixedly connected to one side edge of the door body, so as to realize the rotation connection of the door body simply and conveniently.

[0016] Preferably, in the above-mentioned anti-interference automatic closing small door, the torsion spring is sleeved on the pin shaft, and the two straight torsion arms at the end of the torsion spring are respectively in contact with the mounting surface and the door body, so that the elastic force accumulated by the torsion spring can open the door body.

[0017] Preferably, in the above-mentioned anti-interference automatic closing small door, the installation surface close to the pin shaft is a limiting surface, and the limiting surface limits the maximum opening and closing angle of the door body when the door body is opened under the energy storage elasticity of the torsion spring. By setting the limiting surface to limit the opening angle of the door body, the door body has a more stable opening effect in combination with the elastic force of the torsion spring.

[0018] Preferably, in the above-mentioned anti-interference automatic closing small door, the maximum opening and closing angle of the door body is parallel to the installation surface, which can meet the opening effect.

[0019] The present invention also provides a fireproof rolling shutter and track matching structure, comprising an I-beam track and a fireproof rolling shutter body arranged above the I-beam track; the bottom edge of the fireproof rolling shutter body is provided with an avoidance opening for avoiding the I-beam track, and both side surfaces of the avoidance opening are equipped with an anti-interference automatic closing small door, and the door body can block the fireproof gap formed by the web of the I-beam track and the upper and lower edge wing plates on both sides when the fireproof rolling shutter body is completely dropped.

[0020] Through the above technical scheme, the present invention provides a fireproof roller shutter and track matching structure. By opening an avoidance opening to avoid the track and using an anti-interference automatic closing small door, the fireproof gap can be closed when the fireproof roller shutter body is completely dropped, thereby achieving a good isolation effect. The structure is simple, the use is convenient, and the control is reliable.

[0021] Preferably, in the above-mentioned fireproof rolling shutter and track matching structure, the side surface of the door body that can rotate close to the fireproof rolling shutter body is a fireproof surface, and a supporting square tube is fixed to the other side surface of the door body. The rigidity of the fireproof rolling shutter body at the door body is improved to prevent deformation when the door body is closed and collided.

[0022] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses an anti-interference automatic closing small door and its fireproof roller shutter and track matching structure, which has the following beneficial effects:

[0023] 1. The present invention provides a small door that can be automatically closed as the position of the mounting surface changes, and can be used in conjunction with a required structure. When the mounting surface drops to contact other surfaces, the limit pin is pushed upward, thereby causing the elbow to separate from the door body. Under the action of the torsion spring, the door body automatically closes. The overall structure is simple and ingenious, and can achieve automatic closing without providing any power device.

[0024] 2. The present invention provides a fireproof roller shutter and track matching structure. By opening an avoidance opening to avoid the track and using an anti-interference automatic closing small door, the fireproof gap can be closed when the fireproof roller shutter body is completely dropped, thereby achieving a good isolation effect. The structure is simple, the use is convenient, and the control is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 The accompanying drawing is a schematic structural diagram of the fireproof rolling shutter body not touching the ground in the fireproof rolling shutter and track matching structure provided by the present invention;

[0027] Figure 2 The accompanying drawings provide Figure 1 A magnified view of the part A in the middle;

[0028] Figure 3 The accompanying drawings provide Figure 1 A magnified view of the part B in the middle;

[0029] Figure 4 The accompanying drawing is a schematic structural diagram of the fireproof rolling shutter body landing in the fireproof rolling shutter and track matching structure provided by the present invention;

[0030] Figure 5 The accompanying drawings provide Figure 4 Enlarged view of part C in the middle.

[0031] in:

[0032] 1-I-steel track; 11-fireproof gap; 12-T-steel track;

[0033] 2-fireproof roller shutter body; 21-avoidance opening; 211-lower opening; 212-upper notch; 22-installation surface; 221-ear plate; 222-pin shaft installation block; 223-restriction surface;

[0034] 3-door body; 31-fireproof surface;

[0035] 4-pin shaft; 41-installation sleeve;

[0036] 5-torsion spring; 51-straight torsion arm;

[0037] 6-limit pin; 61-elbow. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See attached Figure 1 To Attachment Figure 5 The embodiment of the present invention discloses a fireproof rolling shutter and track matching structure, comprising an I-beam track 1 and a fireproof rolling shutter body 2 arranged above the I-beam track 1; a bypass opening 21 for avoiding the I-beam track 1 is opened at the bottom edge of the fireproof rolling shutter body 2, and an anti-interference automatic closing small door is installed on both sides of the bypass opening 21;

[0040] See attached Figure 3 and attached Figure 5 The anti-interference automatic closing small door includes a mounting surface 22; and further includes:

[0041] The door body 3 is rotatably connected to the mounting surface 22 via a pin shaft 4. A torsion spring 5 is provided on the pin shaft 4. The torsion spring 5 enables the door body 3 to have a rotational movement tendency;

[0042] The limit pin 6 is slidably connected to the mounting surface 22 up and down, the bottom end of the limit pin 6 protrudes from the bottom edge of the mounting surface 22, and the top end of the limit pin 6 has an elbow 61, which hooks the top edge of the door body 3, so that the door body 3 is close to the mounting surface 22 and compresses the torsion spring 5.

[0043] The door body 3 can shield the fireproof gap 11 formed by the web of the I-beam track 1 and the upper and lower edge wing plates on both sides when the fireproof rolling shutter body 2 is completely dropped.

[0044] In order to further optimize the above technical solution, when the limiting pin 6 moves upward until its bottom end is flush with the bottom edge of the mounting surface 22 , the elbow 61 is separated from the top edge of the door body 3 .

[0045] In order to further optimize the above technical solution, at least two upper and lower corresponding ear plates 221 are fixed on the mounting surface 22 , and the limiting pin 6 passes through the ear plates 221 .

[0046] In order to further optimize the above technical solution, upper and lower corresponding pin shaft mounting blocks 222 are fixed on the mounting surface 22 , and both ends of the pin shaft 4 are rotatably connected to the two pin shaft mounting blocks 222 .

[0047] In order to further optimize the above technical solution, two mounting sleeves 41 arranged up and down are fixed on the shaft body of the pin shaft 4 , and the two mounting sleeves 41 are both fixedly connected to one side edge of the door body 3 .

[0048] In order to further optimize the above technical solution, the torsion spring 5 is sleeved on the pin 4, and the two straight torsion arms 51 at the ends of the torsion spring 5 are respectively in contact with the mounting surface 22 and the door body 3.

[0049] In order to further optimize the above technical solution, the installation surface 22 is close to the pin shaft 4 as a limiting surface 223. The limiting surface 223 limits the maximum opening and closing angle of the door body 3 when the door body 3 is opened under the energy storage elasticity of the torsion spring 5.

[0050] In order to further optimize the above technical solution, the maximum opening and closing angle of the door body 3 is parallel to the installation surface 22 .

[0051] In order to further optimize the above technical solution, the side surface of the door body 3 that can rotate close to the fireproof rolling shutter body 2 is the fireproof surface 31, and the other side surface of the door body 3 is fixed with a supporting square tube. In this embodiment, the specification is 40*20*2 square steel tubes, and two are set on each side.

[0052] In order to further optimize the above technical solution, a fire-expandable sealing strip is placed in the gap between the outer side of the track and the fireproof roller shutter body 2.

[0053] This embodiment provides a specific structure of the cooperation between a pin shaft and a torsion spring. In other embodiments, a spring hinge or other structure may be used for connection.

[0054] The specific principle of the fireproof roller shutter and track matching structure provided in this embodiment is:

[0055] In the initial state, that is, when the fireproof rolling curtain body 2 does not fall, the state of the door body 3 is as follows: Figure 1 and Figure 3 As shown, at this time, the elbow 61 of the limiting pin 6 hooks the door body 3.

[0056] In this embodiment, an inverted T-shaped steel track 12 is also fixed above the I-beam, so according to the track structure, the avoidance opening 21 includes a lower opening 211 for avoiding the I-shaped steel track 1 and an upper notch 212 for avoiding the T-shaped steel track 12, so that when the fireproof rolling shutter body 2 falls, it can avoid the track. When the fireproof rolling shutter body 2 falls to the bottom, the limit pin 6 is pushed up and the elbow 61 is separated from the door body 3. The door body 3 is closed under the action of the torsion spring 5 to block the fireproof gap 11. Figure 4 and Figure 5 shown.

[0057] When the fireproof rolling shutter body 2 needs to be raised, the door body 3 is manually reset first and then raised.

[0058] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fireproof rolling shutter and track matching structure, comprising an I-beam track (1) and a fireproof rolling shutter body (2) arranged above the I-beam track (1); characterized in that: The bottom edge of the fireproof rolling shutter body (2) is provided with an escape opening (21) for escaping the I-beam track (1), and both side mounting surfaces (22) of the escape opening (21) are mounted with anti-interference automatic closing small doors; the anti-interference automatic closing small doors include: A door body (3), the door body (3) being rotatably connected to the mounting surface (22) via a pin shaft (4), a torsion spring (5) being provided on the pin shaft (4), the torsion spring (5) enabling the door body (3) to have a tendency to rotate; A limit pin (6), the limit pin (6) being slidably connected to the mounting surface (22) up and down, the bottom end of the limit pin (6) protruding from the bottom edge of the mounting surface (22), the top end of the limit pin (6) having an elbow (61), the elbow (61) hooking the top edge of the door body (3), so that the door body (3) and the mounting surface (22) are close to each other and the torsion spring (5) is compressed; When the limiting pin (6) moves upward until its bottom end is flush with the bottom edge of the mounting surface (22), the elbow (61) is separated from the top edge of the door body (3); The mounting surface (22) is provided with a limiting surface (223) near the pin shaft (4), and the limiting surface (223) limits the maximum opening and closing angle of the door body (3) when the door body (3) is opened under the energy storage elasticity of the torsion spring (5); The door body (3) can shield the fireproof gap (11) formed by the web plate and the upper and lower edge wing plates on both sides of the I-beam track (1) when the fireproof rolling shutter body (2) is completely lowered.

2. A fireproof roller shutter and track matching structure according to claim 1, characterized in that: At least two upper and lower corresponding ear plates (221) are fixed on the mounting surface (22), and the limiting pin (6) passes through the ear plates (221).

3. The fireproof roller shutter and track matching structure according to claim 1, characterized in that: Upper and lower corresponding pin shaft mounting blocks (222) are fixed on the mounting surface (22), and the two ends of the pin shaft (4) are rotatably connected to the two pin shaft mounting blocks (222) respectively.

4. A fireproof roller shutter and track matching structure according to claim 3, characterized in that: Two mounting sleeves (41) arranged up and down are fixed on the shaft body of the pin shaft (4), and the two mounting sleeves (41) are both fixedly connected to one side edge of the door body (3).

5. A fireproof roller shutter and track matching structure according to claim 4, characterized in that: The torsion spring (5) is sleeved on the pin shaft (4), and two straight torsion arms (51) at the ends of the torsion spring (5) are in contact with the mounting surface (22) and the door body (3) respectively.

6. The fireproof roller shutter and track matching structure according to claim 1, characterized in that: The maximum opening and closing angle of the door body (3) is parallel to the installation surface (22).

7. The fireproof roller shutter and track matching structure according to claim 1, characterized in that: The surface of the door body (3) on one side that can rotate toward the fireproof rolling curtain body (2) is a fireproof surface (31), and a supporting square tube is fixed to the other side surface of the door body (3).

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