CN211819020U - Door frame for airtight door and airtight door - Google Patents

Abstract

The utility model relates to a door frame and airtight door for airtight door. This door frame for airtight door cooperatees with the door body for airtight door that is provided with the sealing strip, the door frame for airtight door is formed with and is used for holding the door opening of the door body for airtight door to facing at least one side chamfer global of the door opening of the door body for airtight door is formed with and is used for the door frame for airtight door with butt when the door body cooperation for airtight door is closed the contact inclined plane of sealing strip.

Description

Door frame for airtight door and airtight door

Technical Field

The utility model relates to a biological safety technical field especially relates to airtight door is with door frame and airtight door.

Background

In recent years, along with the increasing influence of various biohazards on society, biosafety laboratories have been widely established, especially for the research of high-risk virulent viruses. Air tight doors are key equipment in the laboratory and are an important component of the laboratory enclosure. The airtight door is used for personnel to pass in and out, and simultaneously ensures the isolation of a clean area and a polluted area, and ensures the air tightness of a laboratory to prevent pollutants from leaking. At present, a compression sealing ring type airtight door is generally adopted in a biosafety laboratory, and compression sealing is realized through the matching of a mechanical structure handle, a door body, a sealing ring and a door frame. However, the airtight door with a compressed sealing ring is usually in a knife-slot type compressed structure, and during the use of the airtight door, the sealing ring is easily damaged, so that the airtightness performance is reduced, the requirement of a biological safety laboratory cannot be met, the maintenance and replacement frequency of the sealing ring is increased, and the price of the sealing ring is high, so that the economic cost is high.

Therefore, there is a need in the art for a door frame for an airtight door and an airtight door having high durability and low economical cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can solve above-mentioned partial technical problem's airtight door frame for door at least.

The utility model also provides an use the airtight door of above-mentioned modified airtight door frame.

According to an aspect of the utility model, a door frame for air-tight door, it cooperatees with the door body for air-tight door that is provided with the sealing strip, door frame for air-tight door is formed with and is used for holding the door opening of the door body for air-tight door, and face towards global at least one side chamfer of door opening of the door body for air-tight door is formed with and is used for the door frame for air-tight door with butt when door body cooperation for air-tight door is closed the contact inclined plane of sealing strip.

Compared with the prior art, the door frame for the air-tight door in this embodiment with during the door body locking for the air-tight door, the door frame for the air-tight door passes through the sealing strip that the contact inclined plane butt set up on the door body for the air-tight door, when guaranteeing the abundant pressfitting of door frame for sealing strip and air-tight door, has avoided the damage to the sealing strip to avoided the maintenance and the change to the sealing strip, reduced economic cost.

Optionally, the door frame for the airtight door is designed to have a stepped surface on at least one side facing the door opening.

Optionally, the stepped surface is chamfered at a corner to form the contact slope.

Optionally, the chamfering angle of the door frame for the airtight door on at least one side of the peripheral surface of the door opening is 45 degrees.

Optionally, a door frame lock is included that is fixed to a side of the door frame for the airtight door facing away from the door body for the airtight door.

According to the utility model discloses a door for airtight door, including aforementioned door frame for airtight door and the door body for airtight door, the door body for airtight door with one side of door frame for airtight door is articulated and facing at least one side of door opening is provided with the sealing strip.

Optionally, the door body orientation for the air-tight door one side of door frame for the air-tight door be provided with door frame retaining member cooperation locking or the door body retaining member of unblock, wherein work as door body retaining member with when door frame retaining member cooperation locking the sealing strip butt contact inclined plane.

Optionally, the door body for the airtight door comprises a first door disc and a second door disc fixed on one side of the first door disc facing the door frame for the airtight door, wherein the first door disc and the second door disc are matched to form a sealing groove for installing the sealing strip.

Alternatively, a side of the first door panel with respect to the second door panel and a side of the second door panel with respect to the first door panel may be aligned with a side of the door frame for the gas seal toward the door body for the gas seal and a side facing away from the door body for the gas seal, respectively.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.

Drawings

Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

fig. 1 is a schematic view of a door body in an airtight door according to an embodiment of the present invention;

figure 2 is a cross-sectional view of an airtight door according to an embodiment of the present invention at a first drive shaft;

figure 3 is a cross-sectional view at the second drive shaft in an air tight door according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the doorframe lock of FIG. 3;

figure 5 is a front view of an airtight door frame according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view A-A of FIG. 5;

FIG. 7 is a perspective view of region B of FIG. 5;

figure 8 is a cross-sectional view of an airtight door according to an embodiment of the present invention in a locked state;

figure 9 is an elevation view of a first support column and a second support column of an airtight door according to an embodiment of the present invention;

FIG. 10 is a left side view of the first support column;

FIG. 11 is a rear view of a second support post;

fig. 12 is an enlarged schematic view of region C in fig. 9.

FIG. 13 is a top view of FIG. 10;

fig. 14 is an enlarged schematic view of region D in fig. 10.

Description of the reference numerals

1-an airtight door, 11-a door body, 111-a door body locking piece, 1111-a locking connecting piece, 1112-a locking rod, 1113-a rolling bearing, 112-a handle, 1121-a handle mounting piece, 113-a first transmission shaft, 114-a second transmission shaft, 115-an observation window, 116-a first door disc, 117-a second door disc, 118-a sealing sleeve, 12-a door frame, 121-a door frame locking piece, 1211-a guide inclined surface and 1212-a locking surface. 122-door opening, 123-contact inclined plane, 124-door frame front panel, 125-door frame back panel, 126-first side panel, 127-second side panel, 128-third side panel, 129-fourth side panel, 13-transmission mechanism, 131-first rocker arm, 132-second rocker arm, 133-connecting rod, 134-connecting rod connecting piece, 135-bending part, 14-sealing strip, 15-supporting column, 151-first supporting column, 1511-outdoor control panel mounting port, 1512-sensor mounting port, 1513-first wire inlet, 1514-first cavity, 1515-first joint connecting piece, 152-second supporting column, 1521-electromagnet mounting port, 1522-indoor control panel mounting port, 3-second wire inlet, 1524-second cavity, 1525-second joint connection, 153-first gasket layer, 154-second gasket layer, 161-electromagnet, 162-outdoor control panel.

Detailed Description

Referring now to the drawings, illustrative aspects of the disclosed apparatus will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

As used herein, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

Referring to fig. 1 to 14, the airtight door 1 of the present invention is illustrated by way of example, and the airtight door 1 uses a plurality of door body locking members 111 and a corresponding plurality of door frame locking members 121 to achieve locking between the door body 11 and the door frame 12, so as to ensure a multi-point type pressing force distributed on the door frame 12 and the door body 11, and further improve a locking effect between the door frame 12 and the door body 11. The airtight door 1 may include a door body 11, a first transmission shaft 113, at least one second transmission shaft 114, a transmission mechanism 13, and a door frame 12.

As shown in fig. 1 to 3, a plurality of door locks 111 may be provided from top to bottom on the side of the door 11 facing the door frame 12. The door lock 111 is preferably uniformly distributed on the side of the door 11 from top to bottom to provide a multi-point and uniform pressing force when the door 11 and the doorframe 12 are locked. The number of the door body locker 111 is preferably 3, which are respectively distributed at the upper, middle and lower portions of the side of the door body 11. The air tight door 1 as shown in fig. 1 to 3 may have three door body locker 111 disposed on the same straight line, and the three door body locker 111 are disposed on the upper left side, the middle left side and the lower left side of the door body 11, respectively. In addition, the door lock 111 may not be located on the same straight line, such as in the middle of the upper portion, the left side of the middle portion, and the middle of the lower portion of the side of the door 11, respectively, to provide a multi-point and circumferential pressing force.

As shown in fig. 2, a handle 112 may be provided on a side surface of the door body 11 opposite to the plurality of door body locks 111, and the handle 112 may be configured to include a handle mount 1121 and a handle. The first transmission shaft 113 is inserted through the door 11 and can be respectively and fixedly connected to one door lock 111 of the door locks 111 and the handle 112 at two ends. Optionally, both ends of the first transmission shaft 113 are respectively embedded in the door body locks 111 and the handle 112, the first transmission shaft 113 and one door body lock 111 of the door body locks 111 are coaxial, so that the rotation of the handle 112 is transmitted to the one door body lock 111 of the door body locks 111 via the first transmission shaft 113.

As shown in fig. 1 to 3, at least one second transmission shaft 114 can pass through the door 11 and is fixedly connected to another door lock 111 of the door locks 111. The transmission mechanism 13 is disposed in the door 11 and connects the first transmission shaft 113 and each of the second transmission shafts 114, so as to transmit the movement of the first transmission shaft 113 to each of the second transmission shafts 114, respectively, and thereby drive the other door locks 111 in the door locks 111 to move.

Specifically, the transmission mechanism 13 includes a first swing arm 131 fixedly connected to the first transmission shaft 113, a plurality of second swing arms 132 fixedly connected to the plurality of second transmission shafts 114, respectively, and a plurality of connecting rods 133 rotatably connected to the first swing arm 131 and each of the second swing arms 132. It is understood that the first transmission shaft 113, the first swing arm 131, the plurality of connecting rods 133, the plurality of second swing arms 132, and the plurality of second transmission shafts 114 constitute a multi-link type motion mechanism to transmit the motion of the first transmission shaft 113 to the respective second transmission shafts 114.

As shown in fig. 1 to 4, the door frame 12 is hinged to the door body 11 and is provided with a plurality of door frame locking pieces 121 corresponding to the plurality of door body locking pieces 111 from top to bottom on one side thereof, and the plurality of door frame locking pieces 121 are configured to cooperate with the corresponding door body locking pieces 111 to lock or unlock when the handle 112 is driven by an external force, so that the door body 11 and the door frame 12 cooperate to close or open.

Specifically, one side of the door frame 12 hinged to the door body 11 may be provided with 4 pairs of rotating shaft cores and fixed shaft seats, which are evenly distributed and may be respectively fixed on the door frame 12 and the door body 11 by bolts. In addition, the handle 112 is rotated by an external force, and the first transmission shaft 113 is rotated therewith, so as to drive one door locking member 111 of the door locking members 111 to rotate and to be matched and locked with the corresponding door frame locking member 121. Meanwhile, the rotation of the first transmission shaft 113 is converted into the translational motion of each connecting rod 133 through the first swing arm 131, so as to be converted into the rotation of the second swing arm 132 connected to the other end of each connecting rod 133, and the rotation is transmitted to the other door body locking members 111 in the door body locking members 111 through the second transmission shaft 114, so as to be matched and locked with the corresponding door frame locking members 121. Thereby, the door 11 and the door frame 12 are locked. It can be understood that when the handle 112 is rotated reversely, the unlocking process of the door frame 12 and the door body 11 can be correspondingly realized.

Optionally, as shown in fig. 1, the connection between the connecting rod 133 and the first rocker arm 131 and between the connecting rod 133 and the second rocker arm 132 via the connecting rod connecting piece 134 facilitates the installation between the connecting rod 133 and the first rocker arm 131 and between the connecting rod 133 and the second rocker arm 132, and ensures effective motion transmission between the first rocker arm 131 and each second rocker arm 132. Alternatively, link connector 134 may be configured as a clevis connector having a clevis end provided with a connecting bore, such as a pin, to which first or second rocker arm 131, 132 may be rotatably connected, and an end remote from the connecting bore to which link 133 is connected. As shown in fig. 1, when the first swing arm 131 is connected to the plurality of links 133 via a plurality of clevis links, the connecting holes of the plurality of clevis links are concentric and pinned to the first swing arm 131. Alternatively, the plural forked links herein may be constructed in one body, with one connecting hole connected to the first swing arm 131 provided in the middle, and the ends connected to the respective links 133, respectively.

Optionally, as shown in fig. 1, the door body 11 may further be embedded with an observation window 115 to facilitate a user inside and outside the airtight door 1 to observe the other side. In order to ensure the sealing performance of the airtight door 1, the observation window 115 is sealably installed on the door body 11. In addition, because the second links 133 located in the door 11 move along with the handle 112, one or more of the links 133 close to the observation window 115 have a bent portion 135 away from the observation window 115, so as to prevent one or more of the links 133 from colliding with the peripheral wall of the observation window 115 during the movement process and obstructing the movement thereof. The outer surface of the observation window 115 is preferably aligned with the outer surface of the door body 11 in order to clean the airtight door 1 and avoid the accumulation of dust and water droplets at the junction of the observation window 115 and the door body 11. In practical applications, the observation window 115 may be made of hydrophobic glass to prevent water droplets from remaining on the observation window 115 and ensure the visibility of the observation window 115.

Alternatively, as shown in fig. 1, 3 and 4, the doorframe lock 121 is configured with a guide slope 1211 and a locking surface 1212 adjoining the guide slope 1211 at a side facing away from the doorframe 12. The door locking member 111 includes a locking connector 1111 fixed to the first transmission shaft 113 or the second transmission shaft 114, respectively, a locking rod 1112 fixed to the locking connector 1111, and a rolling bearing 1113 rolling on the guide inclined surface 1211 and locked on the locking surface 1212 installed at a free end of the locking rod 1112.

Specifically, when the first transmission shaft 113 and the second transmission shaft 114 are driven by the handle 112 to rotate, the locking connection 1111 fixed to the first transmission shaft 113 and the second transmission shaft 114 rotates accordingly. The locking rod 1112 is installed on the locking link 1111 through a locking hole of the locking link 1111 and rotates with the locking link 1111. When the locking rod 1112 rotates to a certain position, the bottom surface of the rolling bearing 1113 sleeved on the free end of the locking rod 1112 and capable of rotating around the locking rod contacts the guide inclined surface 1211, and then under the rotation of the locking rod 1112, the rolling bearing 1113 rolls along the guide inclined surface 1211 to contact with the locking surface 1212 until being locked on the locking surface 1212, so that the door frame locking member 121 and the door body locking member 111 are matched and locked, and the door body 11 and the door frame 12 are pressed tightly.

Alternatively, as shown in fig. 8, the air-tight door 1 further includes a weather strip 14 provided on at least one side of the door body 11, and the weather strip 14 is pressed between the door frame 12 and the door body 11 when the door frame 12 and the door body 11 are fitted and locked via a plurality of door frame locking pieces 121 and corresponding door body locking pieces 111. The airtight door 1 can still keep a locking state in a power-off state by adopting a compression type sealing strip instead of an inflatable sealing strip, and the problem of sealing failure is avoided.

Alternatively, as shown in fig. 9, the door body 11 includes a first door panel 116 and a second door panel 117 fixed to a side of the first door panel 116 facing the door frame 12, and a peripheral side of the second door panel 117 is expanded outward compared to a peripheral side of the first door panel 116 to form a sealing groove for mounting the weather strip 14 by a shape fit with the first door panel 116, so that the structure is simple and a problem of adhesive failure which may be caused by adhering the weather strip 14 with an adhesive is avoided. Wherein the flared end of the second door disc 117 extends towards the first door disc 116 adjacent the side of the first door disc 116 to form a closed shape for the slot of the sealing groove to further capture the sealing strip 14. In addition, a bearing member may be disposed in the first door plate 116 for bearing the weight of the door 11 to ensure the normal operation of the door 11.

Alternatively, as shown in fig. 2 and 3, since the first transmission shaft 113 and the second transmission shaft 114 are inserted into the door 11 to form a gap with the door 11, a sealing sleeve 118 is compressed between each door lock 111 and the door 11 and between the handle 112 and the door 11 to further enhance the sealing performance when the door 11 is locked with the door frame 12. Alternatively, the sealing boot 118 and the aforementioned sealing strip 14 may be made of an elastic material such as rubber, e.g., silicone rubber. The gland 118 pressed between the door locking member 111 and the door 11 is sleeved on the first transmission shaft 113 or the second transmission shaft 114, and the gland 118 pressed between the handle 112 and the door 11 is sleeved on the first transmission shaft 113. Optionally, a shaft sealing ring is clamped between the sealing sleeve 118 and the first transmission shaft 113 or the second transmission shaft 114 to further improve the sealing performance.

Alternatively, as shown in fig. 5, the door frame 12 may be made of or partially made of a ferrous material or a ferrous material, and therefore, an electromagnet 161 for attracting the door body 11 when the door frame 12 and the door body 11 are locked by the plurality of door body locks 111 and the corresponding door frame locks 121 is further provided on the door frame 12, so as to further improve the locking effect between the door body 11 and the door frame 12, and to ensure the locking effect in the case where the door frame locks 121 and the door body locks 111 are all damaged and do not receive an unlocking signal, thereby avoiding the problem of the airtight door 1 that the airtightness is decreased.

Alternatively, as shown in fig. 5 to 8, the door body 11 can rotate around the side connected with the door frame 12 until the door opening 122 on the door frame 12 is received, so that when the door frame 12 and the door body 11 are closed in a matched manner, the sealing strip 14 arranged on the door body 11 is pressed between the contact inclined surface 123 and the door body 11 in a manner of abutting against the contact inclined surface 123 on the door frame 12, and sealing locking between the door frame 12 and the door body 11 is realized, so that the sealing strip 14 is prevented from being damaged. Wherein the shape of the contact slope 123 covers the shape of the weatherstrip 14 that is spread out in abutment on the contact slope 123. Optionally, the sealing strips 14 are disposed on four sides of the door body 11 facing the door frame 12, and accordingly, the four sides of the door frame 12 facing the peripheral surface of the door opening 122 of the door body 11 are chamfered to form contact inclined planes 123 matched with the sealing strips 14, so that while the sealing strips 14 and the door frame 12 are fully pressed, damage to the sealing strips 14 is avoided, maintenance and replacement of the sealing strips 14 are avoided, and economic cost is reduced. The chamfer angle of the door frame 12 on at least one side of the periphery of the door opening 122 can be selected according to actual requirements, and is preferably 45 degrees. Alternatively, the circumferential surface of the door frame 12 facing the door opening 122 of the door body 11 may be rounded to form a contact inclined surface 123 in the shape of a circular arc surface.

As shown in fig. 6 and 7, the door frame 12 may include a door frame front panel 124 and a door frame back panel 125 parallel to each other, and a first side panel 126, a second side panel 127, a third side panel 128, and a fourth side panel 129 connecting the door frame front panel 124 and the door frame back panel 125. Wherein the doorframe front panel 124, the first side panel 126, the second side panel 127, the third side panel 128, the fourth side panel 129 and the doorframe back panel 125 are sequentially connected to each other. Further, the first side panel 126 and the fourth side panel 129 are perpendicular to the doorframe front panel 124 and the doorframe back panel 125. The second side panel 127 is parallel to the doorframe front panel 124 and the doorframe back panel 125. The third side panel 128 is inclined to the doorframe front panel 124 and the doorframe back panel 125.

It can be seen that the outer surface of the fourth side panel 129 forms the periphery of the door opening 122. The outer surfaces of the first side panel 126, the second side panel 127, the third side panel 128, and the fourth side panel 129 together constitute a stepped surface formed on the side of the door frame 12 facing the door opening 122. The outer surface of the third side panel 128 forms a contact slope 123, the included angle between the third side panel 128 and the second and fourth side panels 127 and 129 may be 45 degrees, and the third side panel 128 may be formed by chamfering 45 degrees at the connection between the second and fourth side panels 127 and 129, which may be considered to be perpendicular to each other.

Alternatively, as shown in fig. 7 and 8, when the doorframe 12 and the door body 11 are locked, the first door panel 116 is substantially accommodated in a space formed by the first side panel 126, the second side panel 127 and the third side panel 128 together, so that the sealing tape 14 abuts against the outer surface of the third side panel 128, i.e., the contact slope 123, to prevent the sealing tape 14 from being damaged. Second door panel 117 is received within door opening 122 defined by fourth side panel 129. At this time, the side of the doorframe front panel 124 facing away from the doorframe back panel 125 is aligned with the side of the first door panel 116 facing away from the second door panel 117, and the side of the doorframe back panel 125 facing away from the doorframe front panel 124 is aligned with the side of the second door panel 117 facing away from the first door panel 116, so that the airtight door 1 is cleaned in the later use process, and the dust accumulation between the doorframe 12 and the door body 11 is avoided.

Alternatively, as shown in fig. 9 to 14, the airtight door 1 may further include a support pillar 15 for mounting at least one electric component to control the airtight door 1, the support pillar 15 is mounted on one side of the door frame 12 and provided with at least one mounting opening for correspondingly mounting at least one electric component on one side facing the door body 11 or one side facing away from the door body 11, and an end portion of the support pillar 15 is provided with a wire inlet for all the electric components, and the wire inlet and each mounting opening are communicated via a cavity provided in the support pillar 15. Wherein, the cable correspondingly connected with the electric element enters through the wire inlet and travels to the corresponding mounting port through the cavity in the supporting column 15 to connect the electric element, so as to supply power or control or data communication for the electric element.

The state of the door 11 on the side facing the door 11 and the state on the side facing away from the door 11 are both the state when the door 11 is not accommodated in the door opening 122 of the door frame 12. Wherein, by arranging the mounting opening only at one side facing the door body 11 or one side back to the door body 11, and the end is provided with a wire inlet for all the electrical components and an airtight threading joint hermetically connected with the wire inlet to realize the sealing of the wire inlet of the supporting column 15, while ensuring the expansion function of the airtight door, the support column is constructed into a structure with only one side opening, so that at the support column 115, contaminants such as chemical gas or air in the environment on the side of the mounting port facing the support column can only travel to the internal cavity of the support column 15 via the mounting port and cannot be leaked to other side areas of the support column, such as the area of the cable connecting the electrical components away from the wire inlet, such as the area of the controller connected by the cable, ensuring the tightness of the support column 15 and the airtight door 1 to which the support column 15 is applied at the support column 115, and local sealing in a plurality of areas of the supporting column 15 is avoided to improve the sealing effect and facilitate maintenance.

Alternatively, as shown in fig. 14, a first gasket layer 153 covering the mounting opening may be provided between the mounting opening and the corresponding electrical component to further improve the sealability of the airtight door 1. Alternatively, as shown in fig. 12, a joint connector for connecting an airtight threading joint may be installed on the end of the support column 15 provided with the wire inlet, and a connecting hole communicated with the wire inlet is provided on the joint connector. The attachment hole is preferably in coaxial communication with the port so that cables entering the support post 15 more easily enter the port for connection to the corresponding electrical component when the airtight twist tie is sealingly attached to the tie connector. In addition, a second sealing cushion 154 may be clamped between the joint connector and the end of the support column 15 to ensure the tightness between the joint connector and the support column 15 after the joint connector is sealingly connected to the sealing thread joint to further improve the air tightness of the air tight door 1.

Optionally, the airtight door 1 may further include electric components correspondingly mounted on the mounting opening. Wherein the electric element is configured as any one or a combination of an indoor control panel, an electromagnet 161, an outdoor control panel 162, and a sensor. It will be understood that other electrical components for the airtight door 1 may be used according to practical requirements.

As shown in fig. 8 to 14, the support pillar 15 is configured as a second support pillar 152 fixed to one side of the door frame 12 and a first support pillar 151 fixed to the opposite side of the second support pillar 152 with respect to the door frame 12 to mount electric components as needed while avoiding the provision of mounting openings on both the side of the same support pillar 15 facing the door body 11 and the side facing away from the door body 11. The side of the second support column 152 facing the door 11 is provided with an electromagnet mounting opening 1521 or the side facing away from the door 11 is provided with an indoor control panel mounting opening 1522 (as shown in fig. 9 and 11, respectively), and the side of the first support column 151 facing the door 11 is provided with an outdoor control panel mounting opening 1511 and a sensor mounting opening 1512. Accordingly, as shown in fig. 12, the first support column 151 is provided at an end portion thereof with a first wire inlet 1513 and internally with a first cavity 1514 communicating with the first wire inlet 1513 for entry of cables of the outdoor button control panel and the sensor. The end of the first support column 151 is further provided with a first joint connector 1515 for connecting an airtight threading joint to seal, and a second gasket layer 154 is clamped between the first joint connector 1515 and the first support column 151. The end of the second support column 152, which is located at the same side of the end of the first support column 151 where the first wire inlet 1513 is located, is provided with a second wire inlet 1523 and a second cavity 1524, which is located inside and is communicated with the second wire inlet 1523, for the entry of the cable of the electromagnet 161 or the indoor control panel. The end of the second support column 152 is further provided with a second connector 1525 for connecting an airtight threading connector to seal, and a second sealing cushion 154 is clamped between the second connector 1525 and the end of the second support column 152.

It can be seen that the side facing the door 11 is the outside and the side facing away from the door 11 is the inside. In the case where the indoor control panel mounting opening 1522 is provided on the side facing away from the door body 11, the first support column 151 and the second support column 152 are used to mount an electric component used outdoors and an electric component used indoors, respectively. With respect to the first support column 151, outdoor contaminants enter the first cavity 1514 via the outdoor control panel mounting port 1511 and the sensor mounting port 1512 and cannot further diffuse to other side regions of the first support column 151. For the second support column 152, the indoor contaminants enter the second cavity 1524 through the indoor control panel mounting opening 1522 and cannot further diffuse to other side areas of the second support column 152. Alternatively, since the second support pillar 152 is closer to the door frame 12 and the door body 11 than the first support pillar 151, the second support pillar 152 may be provided with an electromagnet mounting opening 1521 on a side facing the door body 11 for mounting the electromagnet 161, as shown in fig. 11, in which case both the first support pillar 151 and the second support pillar 152 are used for mounting outdoor electrical components.

Optionally, a door closing indicator light, a door opening indicator light and an emergency stop button are respectively disposed on the indoor control panel and the outdoor control panel 162, the door closing indicator light and the door opening indicator light may be light emitting diodes with different light emitting colors or different flashing modes, such as normally bright or flashing, and the emergency stop button may also be in the form of an emergency stop knob, and the like, so that a user can know the state of the airtight door 1 according to the door closing indicator light and the door opening indicator light and control the airtight door 1 to perform emergency stop by operating the emergency stop button. Wherein, the outdoor control panel 162 is also provided with an opening button, the opening button can also be in the form of an opening knob, and the outdoor control panel 162 is positioned at the opening side of the door, so that the electromagnet 161 can be controlled to stop working by controlling the opening button. Herein, the door body 11 is located outdoors and rotates toward the inside close to the door frame 12 to close the airtight door 1, and rotates toward the outside away from the door frame 12 to open the airtight door 1.

In practical applications, the corresponding cables of each electrical element may each be communicatively connected to one overall controller, or may each be communicatively connected to a plurality of controllers that may communicate with each other. Taking a master controller as an example, the sensor can sense the open/close state of the airtight door 1 and send a sensing signal to the master controller, and the master controller lights the door opening indicating lamp or the door closing indicating lamp according to the sensing signal. And the master controller can control the electromagnet 161 to work to generate magnetism to adsorb the door body when receiving the sensing signal sent by the sensor as the closing signal of the air-tight door. Further, the indoor control panel or the outdoor control panel 162 transmits an emergency stop signal or an on signal to the overall controller in response to the user pressing the emergency stop button or the on button, and the overall controller cuts off the power supply of all the electric elements or cuts off the power supply of the electromagnet 161 in accordance with the emergency stop signal or the on signal.

Alternatively, as shown in fig. 8, the supporting column 15 is sleeved in the door frame 12, the door frame 12 is provided with an operation opening for exposing each electrical component, and a cover plate for exposing the indicator light, the button, the electromagnet 161 and the sensor is hermetically installed on the operation opening, so that a certain gap exists between the side of the installation opening of the supporting column 15 and the adjacent door frame 12. In order to better ensure the tightness of the supporting column 15, the supporting column 15 is welded to the door frame 12 at least at the side edge adjacent to the installation opening from top to bottom in a continuous welding process so as to form a seal between the side of the installation opening of the supporting column 15 and the adjacent door frame 12, so that the pollutants at the side of the operation opening of the door frame 11 facing to one side cannot diffuse to other areas inside the airtight door 1.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above description is only illustrative of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention are to be considered within the scope of the invention.

Claims (12)

1. The door frame for the airtight door is matched with a door body for the airtight door, which is provided with a sealing strip, and is characterized in that the door frame for the airtight door is formed with a door hole for accommodating the door body for the airtight door, and at least one side chamfer facing the periphery of the door hole of the door body for the airtight door is formed with a contact inclined plane for abutting against the sealing strip when the door body for the airtight door is matched and closed.

2. The door frame for a gas-tight door according to claim 1, wherein the door frame for a gas-tight door is designed to have a stepped surface on at least one side facing the door opening.

3. The door frame for a gas-tight door according to claim 2, wherein the stepped surface is chamfered at a corner to form the contact slope.

4. The door frame for a gas-tight door according to claim 1, wherein a chamfer angle of the door frame for a gas-tight door on at least one side of the peripheral surface of the door opening is 45 degrees.

5. The door frame for a gas-tight door according to claim 1, comprising a door frame lock fixed to a side of the door frame for a gas-tight door facing away from the door body for a gas-tight door.

6. An airtight door comprising the door frame for airtight door according to any one of claims 1 to 4 and a door body for airtight door hinged to one side of the door frame for airtight door and provided with a weather strip on at least one side facing the door opening.

7. The air-tight door according to claim 6, wherein the door body comprises a first door disc and a second door disc fixed on a side of the first door disc facing the door frame, wherein the first door disc and the second door disc cooperate to form a sealing groove for mounting the sealing strip.

8. The air-tight door according to claim 7, wherein a side of the first door panel with respect to the second door panel and a side of the second door panel with respect to the first door panel are aligned with a side of the door frame of the air-tight door facing the door body of the air-tight door and a side facing away from the door body of the air-tight door, respectively.

9. An airtight door comprising the door frame for an airtight door according to claim 5 and a door body for an airtight door hinged to one side of the door frame for an airtight door and provided with a weather strip on at least one side facing the door opening.

10. The air-tight door of claim 9, wherein a side of the door body of the air-tight door facing the door frame of the air-tight door is provided with a door body locker which is locked or unlocked in cooperation with the door frame locker, and wherein the sealing strip abuts against the contact slope when the door body locker is locked in cooperation with the door frame locker.

11. The air-tight door according to claim 10, wherein the door body comprises a first door plate and a second door plate fixed to a side of the first door plate facing the door frame, wherein the first door plate and the second door plate cooperate to form a sealing groove for mounting the weather strip.

12. The air-tight door according to claim 11, wherein a side of the first door panel with respect to the second door panel and a side of the second door panel with respect to the first door panel are aligned with a side of the door frame of the air-tight door facing the door body of the air-tight door and a side facing away from the door body of the air-tight door, respectively.

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