Flat opening type airtight door

Abstract

The invention relates to the field of air-tight doors, and discloses a side-hung air-tight door which comprises a door frame body, a door body, a locking assembly and a driving assembly. The locking assembly comprises a locking part and a matching part, and the locking end of the locking part is inserted into the matching part to achieve locking of the door frame body and the door body. The driving assembly comprises a first motor, a hand wheel, a first transmission rod, a second transmission rod and a connecting sub-assembly, a fixing part of the first motor is fixedly mounted on the door body, the power output end of the first motor is in transmission connection with the first transmission rod, and the mounting end of the hand wheel is fixedly mounted on the second transmission rod; the first transmission rod and the second transmission rod are in detachable transmission connection through the connecting sub-assembly, and the first transmission rod is driven by the first motor or the second transmission rod to drive the locking end of the locking part to be inserted into the matching part. The air-tight door can quickly start manual operation under the condition of power failure, so that the problem that opening and closing of a flat-opening type air-tight door in the prior art depend on external power supply control is solved.

Description

Technical Field

[0001] This invention relates to the field of airtight door technology, and in particular to a swing-type airtight door. Background Technology

[0002] Hinged airtight doors are widely used in cleanrooms, laboratories, medical facilities, and industrial warehouses—places where high air cleanliness or environmental isolation is required. Their core function is to block the free flow of air between the door leaf and frame through a sealing system, thereby maintaining air pressure balance between the inside and outside spaces, preventing the spread of pollutants, and providing insulation and soundproofing.

[0003] Currently, common swing-type airtight doors mainly rely on the elastic sealing strips (such as rubber or silicone sealing strips) around the door leaf to press against the door frame to achieve a seal. Among them, high-performance airtight doors often adopt multi-layer sealing or air-filled sealing designs. Although this design can improve the airtightness index, its structure is complex, its cost is high, it is extremely dependent on external power supply or electrical control for opening and closing, and its failure risk is high, making it difficult to be used in occasions with strict cost or reliability requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a swing-type airtight door that solves the problem that the opening and closing of existing swing-type airtight doors depends on external power supply control.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: In a first aspect, the present invention discloses a swing-type airtight door, including a door frame body, a door body, a locking assembly and a driving assembly; The locking assembly includes a locking part and a mating part. The locking part is installed on the door body, and the mating part is installed on the door frame body. The locking end of the locking part is inserted into the mating part to achieve locking between the door frame body and the door body. The drive assembly includes a first motor, a handwheel, a first transmission rod, a second transmission rod, and a connecting sub-assembly. The fixing part of the first motor is fixedly installed on the door body, and the power output end of the first motor is connected to the first transmission rod. The mounting end of the handwheel is fixedly installed on the second transmission rod. The first transmission rod and the second transmission rod are detachably connected through the connecting sub-assembly. Under the drive of the first motor or the second transmission rod, the locking end of the locking part is inserted into the mating part.

[0006] As an optional solution, a commutator is also provided between the first transmission rod and the power output end of the first motor; The commutator includes a first connecting end and a switching end. The first connecting end is connected to the power output end of the first motor, and the switching end is fixedly mounted with the first transmission rod. The commutator converts the rotational power output from the power output terminal of the first motor into the linear movement power of the first transmission rod, and the movement direction of the first transmission rod is parallel to the movement direction of the locking end of the locking part inserted into the mating part.

[0007] As an optional solution, the locking part includes an upper locking rod, an upper pin, a lower locking rod, a lower pin, and a power rod; The power rod includes a first end and a second end, and the first end of the power rod is fixedly connected to the first transmission rod. One end of the upper locking rod is fixedly connected to the mounting end of the upper pin, and the other end of the upper locking rod is fixedly connected to the second end of the power rod; One end of the lower locking rod is fixedly connected to the mounting end of the lower pin, and the other end of the lower locking rod is fixedly connected to the second end of the power rod; The axes of the upper and lower pins are both parallel to the axis of the first transmission rod.

[0008] As an optional solution, the connecting sub-assembly includes a chain, sprocket, toothed disc, and rocker arm; The commutator also includes a second connection terminal; The sprocket is connected to the second connecting end via a chain, the sprocket is fixed coaxially with the toothed disc, and the axis of the sprocket is coaxial with the axis of the second transmission rod. The rocker arm is rotatably mounted on the second transmission rod, and the rotation axis of the rocker arm is coaxial with the second transmission rod; The end of the rocker arm is rotatably connected to a locking head, and the rotation axis of the locking head is parallel to the axis of the rocker arm. The locking head is provided with an arc-shaped clamping part for holding the second transmission rod, and a locking part protruding outward from the side wall of the arc-shaped clamping part. The engaging part has a engaging groove on the side close to the toothed disc that matches the tooth gap of the toothed disc. The rocker arm is configured to have two working positions: When the swing reaches the first position, the engaging head disengages from the gear plate and the second transmission rod; When the swing reaches the second position, the operator moves the rocker arm so that the engaging part engages with the tooth gap of the gear plate, while the arc-shaped clamping part is pressed tightly against the cylindrical surface of the second transmission rod, thereby coupling the rotational motion of the second transmission rod and the gear plate through friction and clamping force.

[0009] As an optional solution, the second transmission rod is also provided with a first bearing and a second bearing; The first bearing is sleeved at the mounting position of the rocker arm and the second transmission rod, and the second bearing is sleeved between the gear plate and the second transmission rod.

[0010] As an optional solution, the connecting sub-assembly includes a chain, sprocket, toothed disc, and rocker arm; The commutator also includes a second connection terminal; The sprocket is connected to the second connecting end via a chain, the sprocket is fixed coaxially with the toothed disc, and the axis of the sprocket is coaxial with the axis of the second transmission rod. The rocker arm is rotatably mounted on the door body, and the rotation axis of the rocker arm is parallel to and deviates from the axis of the second transmission rod; The rocker arm has a locking head at its end, and the locking head has an arc-shaped clamping part for holding the second transmission rod, as well as a locking part protruding outward from the side wall of the arc-shaped clamping part. The engaging part has a engaging groove on the side close to the toothed disc that matches the tooth gap of the toothed disc. The rocker arm is configured to have two working positions: When the swing reaches the first position, the engaging head disengages from the gear plate and the second transmission rod; When the swing reaches the second position, the operator moves the rocker arm so that the engaging part engages with the tooth gap of the gear plate, while the arc-shaped clamping part is pressed tightly against the cylindrical surface of the second transmission rod, thereby coupling the rotational motion of the second transmission rod and the gear plate through friction and clamping force.

[0011] As an option, the door frame body and the door body are connected by heavy-duty hinges.

[0012] As an optional solution, sealing strips are affixed to the top, left, and right ends of the door.

[0013] As an optional solution, a door opener is provided at the bottom of the door.

[0014] As an optional feature, it also includes a control unit, a second motor, and a bottom latch driven by the second motor; The bottom pin is located at the bottom end of the door, and the extension and retraction direction of the bottom pin is perpendicular to the bottom end face of the door. The control unit is electrically connected to the first motor and the second motor, and is configured to: after controlling the first motor to drive the locking part to complete the locking, control the second motor to drive the bottom pin to extend.

[0015] The present invention has the following unexpected beneficial effects: 1. The airtight door of the present invention includes a door frame body, a door body, a locking assembly, and a driving assembly. The locking part of the locking assembly is inserted into the mating part of the locking assembly to lock the door frame body and the door body. The first motor of the driving assembly is connected to the first transmission rod. The fixed end of the handwheel of the driving assembly is fixedly installed on the second transmission rod. The first transmission rod and the second transmission rod are detachably connected by a connecting sub-assembly, so that the airtight door can be quickly activated for manual operation in the event of a power failure, thereby solving the problem that the opening and closing of the swing-type airtight door in the prior art depends on the external power supply control.

[0016] 2. The present invention converts the rotational motion of the first motor and the handwheel into linear motion by setting a commutator, so that the first motor or the handwheel can directly drive the upper and lower pins to be inserted into the mating parts on the door frame at the same time, thereby achieving rigid locking of the door body and effectively preventing deformation and leakage of the door body, thus ensuring the sealing performance of the airtight door described in this application document under high pressure differential or airtight environment.

[0017] 3. The present invention integrates the first motor, handwheel, first transmission rod, second transmission rod, connecting sub-assembly, and second motor on the door body to drive the upper pin, lower pin, and bottom pin to complete the locking action. It has the advantage of compact structure. Moreover, the setting of the connecting sub-assembly ensures that the first motor and handwheel do not generate reverse interference when they work together, realizing mechanical interlocking between modes. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the airtight door according to an embodiment of the present invention; Figure 2 This is a perspective view of the structure of an airtight door according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the heavy-duty hinge of the airtight door according to an embodiment of the present invention; Figure 4 The airtight door of this embodiment of the invention is in Figure 2 A magnified view of a section at point A; Figure 5 The airtight door of this embodiment of the invention is in Figure 2 A magnified view of section B; Figure 6 This is a schematic diagram of the locking assembly of the airtight door according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the commutator of the airtight door according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the handwheel of the airtight door according to an embodiment of the present invention; Figure 9 This is a cross-sectional view of the connecting sub-assembly of the airtight door according to an embodiment of the present invention; In the diagram, 1. Door frame body; 2. Door body; 3. Locking assembly; 301. Locking part; 3011. Upper locking rod; 3012. Upper pin; 3013. Lower locking rod; 3014. Lower pin; 3015. Power rod; 302. Fitting part; 3021. Upper pin hole; 3022. Lower pin hole; 4. Drive assembly; 401. First motor; 402. Handwheel; 403. First transmission rod; 404. Second transmission rod; 405. Connecting sub-assembly; 4051. Sprocket; 4052. Gear plate; 4053. Rocker arm; 406. Reversing device; 407. First bearing; 408. Second bearing; 5. Heavy-duty hinge; 6. Door opener; 7. Second motor; 8. Bottom pin. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this invention, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In one embodiment, such as Figures 1 to 9 As shown, in a first aspect, the present invention provides a swing-type airtight door, including a door frame body 1, a door body 2, a locking assembly 3, and a driving assembly 4.

[0023] The door frame body 1 is a conventional airtight door structure, and the door frame body 1 and the door body 2 are connected by heavy-duty hinges 5 to ensure its load-bearing capacity and durability. The upper, left and right ends of the door body 2 are covered with sealing strips to further ensure the airtightness between the door gaps. The bottom of the door body 2 is equipped with a door opener 6 to save manpower.

[0024] The material of the sealing strip is not further limited here. The sealing strip can be made of common airtight materials, such as EPDM rubber, silicone rubber, neoprene rubber, etc., according to actual needs.

[0025] The main structure of the door body 2 is provided with several reinforcing ribs to enhance the structural strength, and the door body 2 is filled with lightweight concrete to improve its compressive strength.

[0026] The locking assembly 3 includes a locking part 301 and a mating part 302. The locking part 301 is installed on the door body 2, and the mating part 302 is installed on the door frame body 1. The locking end of the locking part 301 is inserted into the mating part 302 to achieve the locking of the door frame body 1 and the door body 2.

[0027] The drive assembly 4 includes a first motor 401, a handwheel 402, a first transmission rod 403, a second transmission rod 404, and a connecting sub-assembly 405. The fixing part of the first motor 401 is fixedly installed on the door body 2, and the power output end of the first motor 401 is connected to the first transmission rod 403. The mounting end of the handwheel 402 is fixedly installed on the second transmission rod 404. The first transmission rod 403 and the second transmission rod 404 are detachably connected through the connecting sub-assembly 405. Under the drive of the first motor 401 or the second transmission rod 404, the locking end of the locking part 301 is inserted into the mating part 302.

[0028] Based on this, when the airtight door is not powered off, the first transmission rod 403 disconnects from the second transmission rod 404 under the action of the connecting sub-assembly 405. The power output end of the first motor 401 drives the first transmission rod 403 to move, thereby locking the locking part 301 and the mating part 302, while avoiding damage to the first motor 401 that may be caused by the operator accidentally touching the handwheel 402. When the airtight door is powered off, the first transmission rod 403 maintains the transmission relationship with the second transmission rod 404 under the action of the connecting sub-assembly 405. Since the first motor 401 is in a powered-off state at this time, when the operator rotates the second transmission rod 404 using the handwheel 402, it not only achieves the locking of the locking part 301 and the mating part 302, but also avoids damage to the first motor 401 by reverse rotation.

[0029] Furthermore, such as Figures 1 to 9 As shown, a commutator 406 is also provided between the first transmission rod 403 and the power output end of the first motor 401.

[0030] The commutator 406 is an existing product, such as a bevel gear ball screw jack. The power output end of the bevel gear ball screw jack is equipped with gears for transmitting power to an external power device. The corresponding gears transmit power to the internal ball screw. After being subjected to the force of the gears, the ball screw moves linearly. This ball screw is the power output end of the bevel gear ball screw jack.

[0031] The commutator 406 includes a first connecting end and a switching end. The first connecting end is connected to the power output end of the first motor 401, and the switching end is fixedly mounted with the first transmission rod 403.

[0032] The commutator 406 converts the rotational power output from the power output end of the first motor 401 into the linear movement power of the first transmission rod 403, and the movement direction of the first transmission rod 403 is parallel to the movement direction of the locking end of the locking part 301 inserted into the mating part 302; the bevel gear shaft provided in the first connecting end transmits the power output from the motor shaft of the first motor 401 to the roller screw, the roller screw with the first transmission rod 403 is mounted to move forward, thereby driving the first transmission rod 403 to move, thereby realizing the locking of the locking part 301.

[0033] Furthermore, such as Figures 1 to 9 As shown, the locking part 301 includes an upper locking rod 3011, an upper pin 3012, a lower locking rod 3013, a lower pin 3014, and a power rod 3015.

[0034] The power rod 3015 includes a first end and a second end. The first end of the power rod 3015 is fixedly connected to the first transmission rod 403. Here, the power rod 3015 is set horizontally. The axes of the upper pin 3012 and the lower pin 3014 are parallel to the axis of the first transmission rod 403. In order to ensure the pushing efficiency of the upper pin 3012 and the lower pin 3014, the first transmission rod 403 is also kept horizontally.

[0035] One end of the upper locking rod 3011 is fixedly connected to the mounting end of the upper pin 3012, and the other end of the upper locking rod 3011 is fixedly connected to the second end of the power rod 3015.

[0036] One end of the lower locking rod 3013 is fixedly connected to the mounting end of the lower pin 3014, and the other end of the lower locking rod 3013 is fixedly connected to the second end of the power rod 3015.

[0037] At this time, the upper pin 3012 and the lower pin 3014 are the locking ends of the locking part 301, and the mating part 302 is the upper pin hole 3021 and the lower pin hole 3022 provided on the door frame body 1. When the locking end of the locking part 301 is inserted into the mating part 302, the upper pin 3012 is inserted into the upper pin hole 3021 provided on the door frame body 1, and the lower pin 3014 is inserted into the lower pin hole 3022 provided on the door frame body 1, so as to realize the locking of the door frame body 1 and the door body 2.

[0038] The fixed connection method of the upper locking rod 3011, the lower locking rod 3013 and the power rod 3015 is not further limited here. The upper locking rod 3011, the lower locking rod 3013 and the power rod 3015 can be integrally formed or connected by thread using a three-way interface.

[0039] The angle between the upper locking rod 3011 and the power rod 3015 is α, and the angle between the lower locking rod 3013 and the power rod 3015 is β. To ensure that the upper pin 3012 and the lower pin 3014 can be fully inserted by pushing the first transmission rod 403 a certain distance, α=β is set. In order to ensure the pushing efficiency of the first transmission rod 403, the angles α and β should be as close to 0° as possible, provided that the structural space is sufficient.

[0040] Furthermore, such as Figures 1 to 9 As shown, the connecting sub-assembly 405 includes a chain, a sprocket 4051, a toothed disc 4052, and a rocker arm 4053.

[0041] To ensure a more reasonable structural layout, the chain, sprocket 4051, gear 4052 and rocker arm 4053 are all positioned below the commutator 406, and the height of the handwheel 402 is the comfortable operating height of an adult's arm when standing.

[0042] The commutator 406 further includes a second connecting end, and the second connecting end is provided with a transmission gear for cooperating with the chain. The axis of the transmission gear is perpendicular to the axis of the motor shaft of the first motor 401. Specifically, the transmission gear here is a bevel gear.

[0043] The sprocket 4051 is connected to the second connecting end via a chain. The sprocket 4051 is coaxially fixed with the gear plate 4052, and the axis of the sprocket 4051 is coaxial with the axis of the second transmission rod 404. To ensure the ease of use of the handwheel 402, the rotation surface of the handwheel 402 is parallel to the mounting surface of the door body 2, and the axis of the second transmission rod 404 is perpendicular to the mounting surface of the door body 2.

[0044] The rocker arm 4053 is rotatably mounted on the second transmission rod 404, and the rotation axis of the rocker arm 4053 is coaxial with the second transmission rod 404. The rocker arm 4053 is also provided with a grip part that is convenient for human hands to hold, and the grip part is provided with a rubber sleeve.

[0045] The end of the rocker arm 4053 is rotatably connected to a locking head, and the rotation axis of the locking head is parallel to the axis of the rocker arm 4053. The pivot point of the locking head is also provided with a pin hole for inserting a limiting member. After the limiting member is inserted into the pin hole, it can prevent the locking head from rotating under force, which would cause coupling failure and loss of power transmission. The limiting member here is a spring pin.

[0046] The engaging head is provided with an arc-shaped clamping part for holding the second transmission rod 404, and an engaging part protruding outward from the side wall of the arc-shaped clamping part. The engaging part is provided with a engaging groove on the side close to the toothed disc 4052 that matches the tooth gap of the toothed disc 4052.

[0047] The rocker arm 4053 is configured to have two working positions: When the swing reaches the first position, the engaging head disengages from the gear disc 4052 and the second transmission rod 404.

[0048] When the swing reaches the second position, the operator moves the rocker arm 4053, causing the engaging part to engage with the tooth gap of the gear disk 4052, while the arc-shaped clamping part is tightly attached to the cylindrical surface of the second transmission rod 404, thereby coupling the rotational motion of the second transmission rod 404 with that of the gear disk 4052 through friction and clamping force.

[0049] Furthermore, such as Figure 9 As shown, the second transmission rod 404 is also provided with a first bearing 407 and a second bearing 408; The first bearing 407 is sleeved at the mounting position of the rocker arm 4053 and the second transmission rod 404, and the second bearing 408 is sleeved between the gear plate 4052 and the second transmission rod 404.

[0050] When the first motor 401 is working, the outer ring of the first bearing 407 is connected to the rocker arm 4053, and the inner ring of the first bearing 407 is connected to the rod body of the second transmission rod 404. At this time, the rocker arm 4053 can rotate freely, and the torque of its rotation will not affect the second transmission rod 404 and the first transmission rod 403. The outer ring of the second bearing 408 is connected to the gear plate 4052, and the inner ring of the second bearing 408 is connected to the rod body of the second transmission rod 404. When the first motor 401 is working, its motor shaft drives the roller screw to move linearly through the bevel gear shaft of the commutator. During this process, the roller screw outputs a reversing torque to the bevel gear of the commutator. This reversing torque drives the sprocket 4051 and the gear plate 4052 to reverse through the chain. If the operator accidentally touches the handwheel 402 at this time, the rotation direction of the second transmission rod 404 will be opposite to that of the gear plate 4052, causing damage to the parts. The second bearing 408 can effectively avoid this kind of damage.

[0051] In another embodiment, which is not shown in the accompanying drawings, the difference between this embodiment and the previous embodiment is that the fulcrum of the rocker arm 4053 of the connecting sub-assembly 405 is no longer located on the second transmission rod 404, but is directly rotatably mounted on the door body 2. Its rotation axis is parallel to and a certain distance from the axis of the second transmission rod 404. A guide rail is provided on the door body 2, and the trajectory of the guide rail matches the movement trajectory of the rotation fulcrum of the rocker arm 4053 when the person rotates the handwheel 402. The fulcrum of the rocker arm 4053 is rotatably mounted in the guide rail. The remaining structures of the connecting sub-assembly 405, such as the chain, sprocket 4051, gear plate 4052, and engaging head in the rocker arm 4053, are the same as in the previous embodiment.

[0052] Based on the first two embodiments, such as Figure 4 As shown, this airtight door also includes a control unit, a second motor 7, and a bottom latch 8 driven by the second motor 7.

[0053] The control unit includes a signal receiver, a processor, and a controller. The signal input terminal of the signal receiver is electrically connected to the signal output terminals of the first motor 401, the second motor 7, and the door opener 6. The signal output terminal of the signal receiver is electrically connected to the signal input terminal of the processor. The processor processes and judges the signal output from the signal receiver and outputs a control signal. The signal input terminal of the controller is electrically connected to the signal output terminal of the processor. The signal output terminal of the controller is electrically connected to the signal input terminals of the first motor 401, the second motor 7, and the door opener 6. The controller controls the first motor 401, the second motor 7, and the door opener 6 to work according to the control signal output by the processor.

[0054] When the door needs to be closed and locked, the door opener 6 first closes the door 2 to the correct position, then starts the first motor 401 to drive the upper pin 3012 and lower pin 3014 to complete the locking. Finally, the second motor 7 starts the bottom pin 8 to extend vertically downwards and insert into the ground or a pin hole provided in the ground. This sequence of locking prevents poor sealing caused by misalignment of the upper and lower pins 3014 due to the bottom locking first, greatly improving safety and sealing reliability.

[0055] In summary, the door frame body 1 and door body 2 of the airtight door are locked together by the locking part 301 and the mating part 302. The locking end of the locking part 301 is powered by the drive assembly 4. The drive assembly 4 is detachably connected to the first transmission rod 403 powered by the first motor 401 and the second transmission rod 404 powered by the handwheel 402 through the connecting sub-assembly 405. This allows the airtight door to be quickly operated manually in the event of a power outage, thus solving the problem that the opening and closing of the swing-type airtight door in the prior art depends on external power control.

[0056] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A swing-type airtight door, characterized in that, It includes the door frame body (1), the door body (2), the locking assembly (3) and the driving assembly (4); The locking assembly (3) includes a locking part (301) and a mating part (302). The locking part (301) is installed on the door body (2), and the mating part (302) is installed on the door frame body (1). The locking end of the locking part (301) is inserted into the mating part (302) to achieve the locking of the door frame body (1) and the door body (2). The drive assembly (4) includes a first motor (401), a handwheel (402), a first transmission rod (403), a second transmission rod (404), and a connecting sub-assembly (405). The fixed part of the first motor (401) is fixedly installed on the door body (2), and the power output end of the first motor (401) is connected to the first transmission rod (403). The mounting end of the handwheel (402) is fixedly installed on the second transmission rod (404). The first transmission rod (403) and the second transmission rod (404) are detachably connected by the connecting sub-assembly (405). Under the drive of the first motor (401) or the second transmission rod (404), the locking end of the locking part (301) is driven by the first transmission rod (403) to insert into the mating part (302).

2. The swing-type airtight door according to claim 1, characterized in that: A commutator (406) is also provided between the first transmission rod (403) and the power output end of the first motor (401). The commutator (406) includes a first connecting end and a switching end. The first connecting end is connected to the power output end of the first motor (401) for transmission, and the switching end is fixedly installed with the first transmission rod (403). The commutator (406) converts the rotational power output from the power output end of the first motor (401) into the linear movement power of the first transmission rod (403), and the movement direction of the first transmission rod (403) is parallel to the movement direction of the locking end of the locking part (301) inserted into the mating part (302).

3. The swing-type airtight door according to claim 2, characterized in that: The locking part (301) includes an upper locking rod (3011), an upper pin (3012), a lower locking rod (3013), a lower pin (3014), and a power rod (3015). The power rod (3015) includes a first end and a second end, and the first end of the power rod (3015) is fixedly connected to the first transmission rod (403); One end of the upper locking rod (3011) is fixedly connected to the mounting end of the upper pin (3012), and the other end of the upper locking rod (3011) is fixedly connected to the second end of the power rod (3015). One end of the lower locking rod (3013) is fixedly connected to the mounting end of the lower pin (3014), and the other end of the lower locking rod (3013) is fixedly connected to the second end of the power rod (3015). The axes of the upper pin (3012) and the lower pin (3014) are both parallel to the axis of the first transmission rod (403).

4. The swing-type airtight door according to claim 2, characterized in that: The connecting sub-assembly (405) includes a chain, a sprocket (4051), a toothed disc (4052), and a rocker arm (4053). The commutator (406) also includes a second connection terminal; The sprocket (4051) is connected to the second connecting end via a chain. The sprocket (4051) is fixed coaxially with the toothed disc (4052), and the axis of the sprocket (4051) is coaxial with the axis of the second transmission rod (404). The rocker arm (4053) is rotatably mounted on the second transmission rod (404), and the rotation axis of the rocker arm (4053) is coaxial with the second transmission rod (404); The end of the rocker arm (4053) is rotatably connected to a locking head, and the rotation axis of the locking head is parallel to the axis of the rocker arm (4053). The locking head is provided with an arc-shaped clamping part for holding the second transmission rod (404), and a locking part protruding outward from the side wall of the arc-shaped clamping part. The engaging part has a engaging groove on the side close to the toothed disc (4052) that matches the tooth gap of the toothed disc (4052). The rocker arm (4053) is configured to have two working positions: When the swing reaches the first position, the engaging head disengages from the gear disc (4052) and the second transmission rod (404). When the swing reaches the second position, the operator moves the rocker arm (4053) so that the engaging part is inserted into the tooth gap of the gear disc (4052), while the arc-shaped clamping part is pressed against the cylindrical surface of the second transmission rod (404), thereby coupling the rotational motion of the second transmission rod (404) with that of the gear disc (4052) through friction and clamping force.

5. The swing-type airtight door according to claim 4, characterized in that: The second transmission rod (404) is also provided with a first bearing (407) and a second bearing (408). The first bearing (407) is sleeved at the mounting position of the rocker arm (4053) and the second transmission rod (404), and the second bearing (408) is sleeved between the gear plate (4052) and the second transmission rod (404).

6. The swing-type airtight door according to claim 2, characterized in that: The connecting sub-assembly (405) includes a chain, a sprocket (4051), a toothed disc (4052), and a rocker arm (4053). The commutator (406) also includes a second connection terminal; The sprocket (4051) is connected to the second connecting end via a chain. The sprocket (4051) is fixed coaxially with the toothed disc (4052), and the axis of the sprocket (4051) is coaxial with the axis of the second transmission rod (404). The rocker arm (4053) is rotatably mounted on the door body (2), and the rotation axis of the rocker arm (4053) is parallel to and deviates from the axis of the second transmission rod (404); The rocker arm (4053) has a locking head at its end, and the locking head has an arc-shaped clamping part for holding the second transmission rod (404) and a locking part protruding outward from the side wall of the arc-shaped clamping part. The engaging part has a engaging groove on the side close to the toothed disc (4052) that matches the tooth gap of the toothed disc (4052). The rocker arm (4053) is configured to have two working positions: When the swing reaches the first position, the engaging head disengages from the gear disc (4052) and the second transmission rod (404). When the swing reaches the second position, the operator moves the rocker arm (4053) so that the engaging part is inserted into the tooth gap of the gear disc (4052), while the arc-shaped clamping part is pressed against the cylindrical surface of the second transmission rod (404), thereby coupling the rotational motion of the second transmission rod (404) with that of the gear disc (4052) through friction and clamping force.

7. The swing-type airtight door according to claim 1, characterized in that: The door frame body (1) and the door body (2) are hinged together by a heavy-duty hinge (5).

8. The swing-type airtight door according to claim 1, characterized in that: The upper, left and right ends of the door (2) are all covered with sealing strips.

9. The swing-type airtight door according to claim 1, characterized in that: The bottom end of the door (2) is provided with a door opener (6).

10. The swing-type airtight door according to claim 1, characterized in that: It also includes a control unit, a second motor (7) and a bottom latch (8) driven by the second motor (7); The bottom pin (8) is located at the bottom end of the door body (2), and the extension and retraction direction of the bottom pin (8) is perpendicular to the bottom end face of the door body (2); The control unit is electrically connected to the first motor (401) and the second motor (7), and is configured to: after controlling the first motor (401) to drive the locking part (301) to complete the locking, control the second motor (7) to drive the bottom pin (8) to extend.

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