Improved steel structure single-leaf protective air-tight door

Abstract

The utility model provides an improved steel structure single-leaf protective airtight door. The improved steel structure single-leaf protective airtight door comprises a door leaf body and a door frame. The door leaf body and the door frame are hinged through the hinge assembly, a first blade plate of the hinge assembly is fixedly connected with the door leaf body, a plurality of installation grooves are formed in the front side wall of the door frame, the sliding seats are fixedly installed in the corresponding installation grooves, and the front end faces of the sliding seats extend out of the front side end face of the door frame. The second blade plate is matched with the sliding seat and can freely slide back and forth along the moving direction of the sliding seat; a plurality of front and back positioning grooves are formed in the front side wall of the right side of the door frame; a plurality of positioning assemblies are arranged on the right side wall of the door leaf body, the left ends of transmission shafts of the positioning assemblies are fixed to the right side wall of the door leaf body, and the transmission shafts are sleeved with positioning rollers. The air-tight door is suitable for the installation environment where the door opening position is small or close to the corner of a building, the defect that a traditional protective air-tight door limits the thickness of a wall is overcome through translation of the door leaf body, and finally the rear end face of the door leaf body is flush with the plane of the wall.

Description

Technical Field

[0001] The utility model relates to the technical field of building protection equipment, in particular to an improved steel structure single-leaf protective closed door. Background Art

[0002] With the continuous development of modern construction technology, the requirements for the safety and protection of buildings are getting higher and higher. As an important part of the building, the performance of protective closed doors is directly related to the safety performance of the building.

[0003] For some installation environments with small door openings or near the corners of buildings, existing single-leaf protective sealed doors are difficult to install in the above-mentioned special locations due to their own structural limitations. In addition, the thickness of the wall where the protective sealed door needs to be installed in special buildings is far greater than the thickness of the door frame. Ordinary protective sealed doors cannot be flush with the wall plane. More importantly, they cannot be opened and closed like normal protective sealed doors. Ordinary protective sealed doors are not suitable for assembly in such working conditions.

[0004] The invention with application number CN201811455109.9 discloses a reinforced concrete single-leaf protective closed door, including a door frame, a protective door, and a spring damping shock absorber. A metal frame is provided on one side of the door frame, and anode magnets are installed at the four corners of the end face of the metal frame. Spring damping shock absorbers are installed on one side of the door frame above and below the metal frame. A hinge ear is installed at one end of the door frame, and a hinge is installed in conjunction with the hinge ear. The protective door is installed at the mounting end of the hinge. The frame of the protective door is a steel plate frame, and an anti-corrosion layer is coated on one side of the steel plate frame, and an anti-oxidation layer is coated on the side of the anti-corrosion layer away from the steel plate frame. A groove is provided on the other side of the steel plate frame, and cathode magnets are installed at the four corners of the groove. The utility model achieves the advantage of closed adsorption between the protective door and the door frame by arranging a sealing ring bonded to the end face of the metal frame and a sealing gasket bonded to the inside of the groove.

[0005] However, the single-leaf protective sealed door in the above patented technology cannot be applied to specific scenarios, nor can it solve the technical problems existing in the single-leaf protective sealed door in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide an improved steel structure single-leaf protective closed door to solve the problems raised in the above background technology:

[0007] (1) How to achieve the installation of a single protective closed door in a small door opening or near a building corner through structural improvement.

[0008] (2) How to improve the hinge structure so that the rear end surface of the door leaf is flush with the end surface of the wall after the door leaf is closed.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] An improved steel structure single-leaf protective closed door, comprising a door leaf body and a door frame;

[0011] The left side of the door leaf main body and the left side of the door frame are hinged by a plurality of hinge assemblies, and the plurality of hinge assemblies are arranged in sequence up and down, and the hinge assemblies include a first blade plate, a second blade plate and a sliding seat, the first blade plate is fixedly connected to the door leaf main body, the first blade plate and the second blade plate are hinged and the first blade plate can rotate freely relative to the second blade plate, a plurality of mounting grooves in the front and rear directions are opened on the front side wall of the left side of the door frame, and the plurality of mounting grooves have a one-to-one correspondence with the sliding seats of the plurality of hinge assemblies, the sliding seat is fixedly installed in the corresponding mounting groove, the front end face of the sliding seat extends out of the front end face of the door frame, the second blade plate cooperates with the sliding seat and the second blade plate can slide freely forward and backward along the direction of the sliding seat;

[0012] A plurality of positioning grooves running forward and backward are provided on the front side wall on the right side of the door frame;

[0013] A plurality of positioning components are provided on the right side wall of the door leaf body, and the plurality of positioning components are arranged up and down in sequence, and the plurality of positioning components correspond one to one with the plurality of positioning grooves. The positioning components include a transmission shaft and a positioning roller, and the left end portion of the transmission shaft is fixedly connected to the right side wall of the door leaf body, and the positioning roller is mounted on the transmission shaft. When the door leaf body is closed relative to the door frame, the positioning roller contacts the bottom wall of the corresponding positioning groove of the door frame.

[0014] On the basis of the above technical solution, the present invention can also be improved as follows.

[0015] Furthermore, a guiding inclined surface with a smooth transition is provided between the front end surface of the door frame and the bottom wall of the positioning groove.

[0016] Furthermore, the improved steel structure single-leaf protective closed door also includes at least one set of door lock components, which include a lock tongue and a lock buckle. The lock tongue is arranged on the door leaf body, and the lock buckle is fixedly connected to the front side wall on the right side of the door frame. The lock buckle is provided with a lock hole that cooperates with the lock tongue.

[0017] Furthermore, the improved steel structure single-leaf protective closed door also includes at least one group of locking assemblies, and the at least one group of locking assemblies corresponds one-to-one to at least one group of door lock assemblies. The locking assembly includes a shell, a rack and a gear shaft. The shell is fixedly connected to the front side of the door leaf body, and the rack and the gear shaft are both located in the cavity inside the shell. The rack is meshed with the gear shaft, and the end of the rack is fixedly connected to the lock tongue of the corresponding door lock assembly, and the axial direction of the gear shaft is consistent with the axial direction of the lock hole of the lock buckle.

[0018] Furthermore, the locking assembly also includes a turntable handle, which is located at the front side of the shell, and the gear shaft passes through the shell and is fixedly connected to the turntable handle.

[0019] After adopting such a structure, the closing action of the door leaf main body relative to the door frame is divided into two stages. The first stage is the same as the closing of the traditional door leaf main body. The door leaf main body rotates toward the door frame along the two-group hinge assembly until the front end face of the door leaf main body is parallel to the front end face of the door opening wall; in the second stage, the door leaf main body can be moved in the front and rear directions through the hinge assembly and the positioning assembly. Through the translation of the door leaf main body, the embedded sealing cooperation between the door leaf main body and the door frame is realized, and then by manipulating the locking assembly, the lock tongue of the door lock assembly is matched with the lock buckle to realize the closing of this improved steel structure single-leaf protective closed door.

[0020] The improved steel structure single-leaf protective closed door is suitable for installation environments with small door openings or near building corners. The improved steel structure single-leaf protective closed door overcomes the limitation of wall thickness of traditional protective closed doors by translation of the door leaf body, and ultimately achieves the flushness of the rear end surface of the door leaf body with the wall plane.

[0021] The beneficial effects of the utility model are:

[0022] 1. Through the cooperation of hinge components and positioning components, the translational closure between the door leaf body and the door frame is realized, making the door leaf body more stable during opening and closing, avoiding the problem of abnormal opening and closing due to deformation of the door leaf.

[0023] 2. Through the cooperation of the mounting groove and the sliding seat, the second blade plate can slide forward and backward, further improving the stability of the door leaf body and making it smoother during opening and closing.

[0024] 3. The setting of the positioning groove and positioning assembly enables the door leaf body to be accurately positioned in the door frame during the closing process, ensuring the airtightness of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the embodiment of the improved steel structure single-leaf protective closed door.

[0026] Figure 2 yes Figure 1 Enlarged view of part A.

[0027] Figure 3 It is a schematic diagram of the hinge assembly in the embodiment of the improved steel structure single-leaf protective closed door.

[0028] Figure 4 yes Figure 3 Right view of .

[0029] Figure 5 It is a cross-sectional view of a schematic diagram of a locking assembly in an embodiment of the improved steel structure single-leaf protective closed door (the turntable handle is omitted).

[0030] Figure 6 It is the main view of the door frame in the embodiment of the improved steel structure single-leaf protective closed door.

[0031] Description of the numbers in the figure:

[0032] Door leaf body 100; door frame 200; mounting groove 210; positioning groove 220; guide slope 221; hinge assembly 300; first blade plate 310; second blade plate 320; sliding seat 330; transmission shaft 410; positioning roller 420; locking tongue 510; locking buckle 520; turntable handle 610; housing 620; rack 630; gear shaft 640. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0034] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 6

[0037] The improved steel structure single-leaf protective closed door comprises a door leaf body 100, a door frame 200, two sets of door lock assemblies and two sets of locking assemblies.

[0038] The left side of the door leaf body 100 and the left side of the door frame 200 are hinged by two sets of leaf assemblies 300, and the two sets of leaf assemblies 300 are arranged in sequence up and down. Each set of leaf assemblies 300 includes a first blade plate 310, a second blade plate 320 and a sliding seat 330. The first blade plate 310 is fixedly connected to the door leaf body 100 by bolts, and the first blade plate 310 is hinged to the second blade plate 320, and the first blade plate 310 can rotate freely relative to the second blade plate 320. Two mounting grooves 210 running forward and backward are formed on the front side wall on the left side of the door frame 200. The right side of the mounting groove 210 is connected to the door opening. The two mounting grooves 210 correspond to the sliding seats 330 of the two combination leaf assemblies 300 one by one. The sliding seats 330 are fixedly embedded in the corresponding mounting grooves 210. The front end surface of the sliding seat 330 extends out of the front end surface of the wall. The second blade plate 320 cooperates with the sliding seat 330 and the second blade plate 320 can slide freely forward and backward along the direction of the sliding seat 330.

[0039] The front side wall on the right side of the door frame 200 is also provided with two positioning grooves 220 extending forward and backward. The left opening of the positioning groove 220 communicates with the door opening. A guiding inclined surface 221 with a smooth transition is provided between the front end surface of the door frame 200 and the bottom wall of the positioning groove 220 .

[0040] Two groups of positioning components are provided on the right side wall of the door leaf main body 100. The two groups of positioning components are arranged in sequence up and down, and the two groups of positioning components correspond one by one to the two positioning grooves 220. The positioning components include a transmission shaft 410 and a positioning roller 420. The left end of the transmission shaft 410 is welded and fixed to the right side wall of the door leaf main body 100. The positioning roller 420 is mounted on the transmission shaft 410. When the door leaf main body 100 is closed relative to the door frame 200, the positioning roller 420 contacts the bottom wall of the corresponding positioning groove 220 of the door frame 200.

[0041] The door lock assembly includes a lock tongue 510 and a lock buckle 520 . The lock tongue 510 is disposed on the door leaf body 100 . The lock buckle 520 is fixedly connected to the front side wall on the right side of the door frame 200 . The lock buckle 520 is provided with a lock hole that cooperates with the lock tongue 510 .

[0042] The two sets of locking assemblies correspond to the two sets of door lock assemblies one by one, and the locking assemblies include a turntable handle 610, a housing 620, a rack 630 and a gear shaft 640. The housing 620 is fixed to the front side of the door leaf body 100 by bolts, and the rack 630 and the gear shaft 640 are both in the chamber in the housing 620. The rack 630 is meshed with the gear shaft 640, and the end of the rack 630 is fixedly connected to the lock tongue 510 of the corresponding door lock assembly, and the axial direction of the gear shaft 640 is consistent with the axial direction of the lock hole of the lock buckle 520. The turntable handle 610 is located at the front side of the housing 620, and the gear shaft 640 passes through the housing 620 and is fixed to the turntable handle 610.

[0043] When the improved steel structure single-leaf protective closed door is closed, the door leaf main body 100 rotates along the two-group hinge assembly 300 toward the door frame 200 until the front end face of the door leaf main body 100 is parallel to the front end face of the door opening wall, pushing the door leaf main body 100 to move backward; during this process, the second blade plate 320 of the hinge assembly 300 cooperates with the sliding seat 330 and the second blade plate 320 can slide backward along the sliding seat 330, and at the same time, the positioning roller 420 of the positioning assembly slides on the bottom wall of the corresponding positioning groove 220 of the door frame 200 until the rear end face of the door leaf main body 100 is flush with the end face of the wall, and the door leaf main body 100 is closed.

[0044] On the contrary, when the improved steel structure single-leaf protective closed door is opened, the door leaf main body 100 is first pulled to move to the front side. During this process, the second blade plate 320 of the hinge assembly 300 cooperates with the sliding seat 330 and the second blade plate 320 can slide forward along the sliding seat 330. At the same time, the positioning roller 420 of the positioning assembly slides on the bottom wall of the corresponding positioning groove 220 of the door frame 200 until the rear end face of the door leaf main body 100 is out of contact with the end face of the wall. The door leaf main body 100 rotates along the two-group hinge assembly 300, and the door leaf main body 100 is opened.

[0045] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An improved steel structure single-leaf protective closed door, comprising a door leaf body (100) and a door frame (200), characterized by: The left side of the door leaf body (100) and the left side of the door frame (200) are hingedly connected by a plurality of hinge assemblies (300), the plurality of hinge assemblies (300) are sequentially arranged up and down, the hinge assemblies (300) comprising a first blade plate (310), a second blade plate (320) and a sliding seat (330), the first blade plate (310) and the door leaf body (100) are fixedly connected, the first blade plate (310) and the second blade plate (320) are hingedly connected, and the first blade plate (310) is opposite to the second blade plate (320). The door frame (200) can be freely rotated. A plurality of installation grooves (210) running forward and backward are opened on the front side wall on the left side of the door frame (200). The plurality of installation grooves (210) correspond to the sliding seats (330) of the plurality of hinge assemblies (300) in a one-to-one relationship. The sliding seats (330) are fixedly installed in the corresponding installation grooves (210). The front end surface of the sliding seat (330) extends out of the front end surface of the door frame (200). The second blade plate (320) cooperates with the sliding seat (330) and the second blade plate (320) can freely slide forward and backward along the direction of the sliding seat (330). A plurality of positioning grooves (220) extending forward and backward are formed on the front side wall of the right side of the door frame (200); A plurality of positioning components are provided on the right side wall of the door leaf body (100), and the plurality of positioning components are arranged in sequence up and down, and the plurality of positioning components correspond one to one with the plurality of positioning grooves (220), and the positioning components include a transmission shaft (410) and a positioning roller (420), and the left end of the transmission shaft (410) is fixedly connected to the right side wall of the door leaf body (100), and the positioning roller (420) is sleeved on the transmission shaft (410), and when the door leaf body (100) is closed relative to the door frame (200), the positioning roller (420) contacts the bottom wall of the corresponding positioning groove (220) of the door frame (200).

2. The improved steel structure single-leaf protective closed door according to claim 1 is characterized by: A guiding inclined surface (221) with a smooth transition is provided between the front end surface of the door frame (200) and the bottom wall of the positioning groove (220).

3. The improved steel structure single-leaf protective closed door according to claim 1 is characterized by: The improved steel structure single-leaf protective closed door also includes at least one set of door lock components, which include a lock tongue (510) and a lock buckle (520). The lock tongue (510) is arranged on the door leaf body (100), and the lock buckle (520) is fixedly connected to the front side wall on the right side of the door frame (200). The lock buckle (520) is provided with a lock hole that cooperates with the lock tongue (510).

4. The improved steel structure single-leaf protective closed door according to claim 3 is characterized by: The improved steel structure single-leaf protective closed door also includes at least one group of locking components, and the at least one group of locking components corresponds to the at least one group of door lock components. The locking components include a shell (620), a rack (630) and a gear shaft (640). The shell (620) is fixedly connected to the front side of the door leaf body (100). The rack (630) and the gear shaft (640) are both located in a cavity in the shell (620). The rack (630) is meshed with the gear shaft (640). The end of the rack (630) is fixedly connected to the lock tongue (510) of the corresponding door lock component. The axial direction of the gear shaft (640) is consistent with the axial direction of the lock hole of the lock buckle (520).

5. The improved steel structure single-leaf protective closed door according to claim 4 is characterized by: The locking assembly further comprises a turntable handle (610), the turntable handle (610) is located at the front side of the housing (620), and the gear shaft (640) passes through the housing (620) and is fixedly connected to the turntable handle (610).

Images