Air pressure shielding electric lifting door for shielding room

Abstract

The utility model relates to the technical field of shielding electric lifting doors, in particular to an air pressure shielding electric lifting door for a shielding room, which comprises a lower door frame, a door leaf is arranged in the lower door frame, a fixed lock seat is arranged on the right side of the front surface of the door leaf, and a plurality of groups of uniformly distributed inner bolt holes are formed in the fixed lock seat. According to the lifting door, when the door leaf is in a half-air static state, secondary limiting can be carried out on the door leaf timely and accurately, sudden falling of the lifting door is prevented, and the product safety and the personal safety are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of shielded electric lifting doors, in particular to an air pressure shielded electric lifting door used in a shielded room. Background Art

[0002] In the past, the air pressure shielding electric lifting doors in the shielding room only considered electromagnetic shielding, and did not take safety, especially fall prevention, into consideration. When the lifting door is stationary in mid-air, due to the large traction force, if the lifting cable breaks at this time, the lifting door will suddenly fall, causing damage to the lifting door and loss of life of people entering and leaving.

[0003] Therefore, it is particularly important to design a gas pressure shielding electric lifting door for a shielding room to change the above technical defects and improve the overall practicality. Utility Model Content

[0004] The utility model aims to provide a pneumatic shielding electric lifting door for a shielding room to solve the problems raised in the above background technology.

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

[0006] A pressure-shielded electric lifting door for a shielded room, comprising a lower door frame, a door leaf is arranged inside the lower door frame, a fixed lock seat is arranged on the right side of the front of the door leaf, a plurality of groups of evenly distributed inner pin holes are arranged inside the fixed lock seat, a folding support plate is arranged on the right side of the lower door frame, and a door leaf stopping mechanism is installed on the folding support plate;

[0007] The door leaf stopping mechanism includes multiple groups of limit pin sleeves fixed to the front side of the lower door frame, multiple groups of outer support columns with the same intervals are installed on the inner side of the folding support plate, the inner side of the outer support column is slidably connected with an inner rack pin, the inner side of the folding support plate is rotatably connected with multiple groups of short shaft rods through a bracket, both ends of the short shaft rods are fixedly connected with gears, multiple groups of evenly distributed vertical frames are arranged inside the folding support plate, and movable rods are slidably connected between the multiple groups of vertical frames, the outer surface of the movable rod is provided with a tooth groove meshing with the gear, an electric push rod is installed on the top of the inner side of the folding support plate, and the driving end of the electric push rod is fixedly connected to the top of the movable rod.

[0008] As a preferred solution of the utility model, the top of the lower door frame is connected to an upper door frame, and the top of the upper door frame is installed with an air pressure lifting device used in conjunction with the door leaf.

[0009] As a preferred solution of the utility model, the inner pin holes and the limit pin sleeves are provided in three groups, and the positions of the two are designed correspondingly.

[0010] As a preferred solution of the utility model, the external structure size of the inner rack pin is matched with the internal structure size of the outer support column, and the left end of the inner rack pin passes through the limit pin sleeve and extends to the inside of the inner pin hole.

[0011] As a preferred solution of the utility model, the short shaft is rotatably connected to the bracket via a bearing seat, wherein the bracket is fixed to the inner wall of the folding support plate via bolts.

[0012] As a preferred solution of the utility model, an open groove is provided inside the outer support column, and the gear located at the rear side is meshedly connected with the inner rack pin through the open groove.

[0013] As a preferred solution of the utility model, a control button is arranged on the front side of the lower door frame, wherein the control button is connected to the electric push rod via a wire, and the connection method is electrical connection.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, a pressure-shielded electric lifting door for a shielded room is provided, which can timely and accurately perform secondary position limiting on the door leaf when the door leaf is in a stationary state in mid-air, thereby preventing the lifting door from falling suddenly and ensuring product and personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of the door leaf stopping mechanism of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of structure A of the utility model.

[0019] In the figure: 1. lower door frame; 2. door leaf; 3. fixed lock seat; 301. inner pin hole; 4. folding support plate; 5. door leaf stop mechanism; 501. limit pin sleeve; 502. outer support column; 503. inner rack pin; 504. short shaft rod; 505. gear; 506. stand; 507. movable rod; 508. tooth groove; 509. electric push rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used 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 in this article includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0025] A pressure shielding electric lifting door for a shielding room comprises a lower door frame 1, a door leaf 2 is arranged inside the lower door frame 1, a fixed lock seat 3 is arranged on the right side of the front of the door leaf 2, a plurality of groups of evenly distributed inner pin holes 301 are arranged inside the fixed lock seat 3, a folding support plate 4 is arranged on the right side of the lower door frame 1, and a door leaf stopping mechanism 5 is installed on the folding support plate 4;

[0026] The top of the lower door frame 1 is connected to the upper door frame, and the top of the upper door frame is installed with an air pressure lifting device used in conjunction with the door leaf 2, forming a complete air pressure shielding electric lifting door device.

[0027] In this embodiment, please refer to Figure 2 and Figure 3The door leaf stopping mechanism 5 includes a plurality of groups of limit pin sleeves 501 fixed on the front side of the lower door frame 1, a plurality of groups of outer support columns 502 with the same intervals are installed on the inner side of the folding support plate 4, and an inner rack latch 503 is slidably connected inside the outer support column 502, and a plurality of groups of short shaft rods 504 are rotatably connected to the inner side of the folding support plate 4 through a bracket, and both ends of the short shaft rods 504 are fixedly connected to gears 505, and a plurality of groups of evenly distributed vertical frames 506 are arranged inside the folding support plate 4, and a movable rod 507 is slidably connected between the plurality of vertical frames 506, and a tooth groove 508 meshing with the gear 505 is provided on the outer surface of the movable rod 507, and an electric push rod 509 is installed on the top of the inner side of the folding support plate 4, and the driving end of the electric push rod 509 is fixedly connected to the top of the movable rod 507;

[0028] The inner pin hole 301 and the limit pin sleeve 501 are each provided with three groups. The multi-group structure is more stable and has a better limiting effect. The positions of the two are designed correspondingly. The external structure size of the inner rack pin 503 is adapted to the internal structure size of the outer support column 502. The left end of the inner rack pin 503 passes through the limit pin sleeve 501 and extends to the inside of the inner pin hole 301 to fix the door leaf 2. The short shaft rod 504 is rotatably connected to the bracket through a bearing seat, and the bracket is fixed to the inner side wall of the folding support plate 4 by bolts. An open groove is provided inside the outer support column 502, and the gear 505 located on the rear side is meshed with the inner rack pin 503 through the open groove. A control button is provided on the front of the lower door frame 1, and the control button is connected to the electric push rod 509 by a wire, and the connection method is electrical connection.

[0029] The working process of the utility model is as follows: after the door leaf 2 is in a mid-air stationary state, the electric push rod 509 can be started, and the electric push rod 509 can be used to drive the movable rod 507 to move up and down inside the stand 506. During the movement, the tooth groove 508 on the outer side thereof is engaged with the gear 505, thereby driving the rotation of the short shaft rod 504 through the gear 505, so that the gear 505 at the other end is engaged with the inner rack pin 503, so that the inner rack pin 503 moves to the right inside the outer support column 502, passes through the limit pin sleeve 501 and is accurately inserted into the inner pin hole 301 inside the fixed lock seat 3, so as to timely and accurately limit the door leaf for a second time, prevent the sudden fall of the lifting door, and ensure the safety of the product and personnel.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-shielded electric lifting door for a shielded room, comprising a lower door frame (1), characterized in that: A door leaf (2) is arranged inside the lower door frame (1), a fixed lock seat (3) is arranged on the right side of the front face of the door leaf (2), a plurality of groups of evenly distributed inner pin holes (301) are arranged inside the fixed lock seat (3), a folding support plate (4) is arranged on the right side of the lower door frame (1), and a door leaf stopping mechanism (5) is installed on the folding support plate (4); The door leaf stopping mechanism (5) comprises a plurality of groups of limit pin sleeves (501) fixed on the front side of the lower door frame (1); a plurality of groups of outer support columns (502) with the same spacing are installed on the inner side of the folding support plate (4); an inner rack latch (503) is slidably connected to the inner side of the outer support column (502); a plurality of groups of short shaft rods (504) are rotatably connected to the inner side of the folding support plate (4) through a bracket; both ends of the short shaft rods (504) are fixedly connected to gears (505). ), a plurality of evenly distributed vertical frames (506) are arranged inside the folding support plate (4), a movable rod (507) is slidably connected between the plurality of vertical frames (506), a tooth groove (508) meshingly connected with the gear (505) is provided on the outer surface of the movable rod (507), an electric push rod (509) is installed on the top of the inner side of the folding support plate (4), and the driving end of the electric push rod (509) is fixedly connected to the top of the movable rod (507).

2. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: The top of the lower door frame (1) is connected to the upper door frame, and the top of the upper door frame is equipped with an air pressure lifting device used in conjunction with the door leaf (2).

3. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: The inner pin holes (301) and the limiting pin sleeves (501) are each provided in three groups, and the positions of the two are designed to correspond to each other.

4. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: The external structure size of the inner rack latch (503) is matched with the internal structure size of the outer support column (502), and the left end of the inner rack latch (503) passes through the limit pin sleeve (501) and extends to the inside of the inner pin hole (301).

5. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: The short shaft (504) is rotatably connected to the bracket via a bearing seat, wherein the bracket is fixed to the inner side wall of the folding support plate (4) via bolts.

6. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: An open slot is provided inside the outer support column (502), and the gear (505) located at the rear side is meshedly connected with the inner rack latch (503) through the open slot.

7. The air pressure shielding electric lifting door for a shielding room according to claim 1, characterized in that: A control button is provided on the front of the lower door frame (1), wherein the control button is connected to the electric push rod (509) via a wire, and the connection is electrical.

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