A self-adaptive sealing enhancement device for confined spaces

Abstract

The present invention provides an adaptive sealing enhancement device for a confined space, comprising a switch fan, a locking device, a hinge device, a fixed frame, and a sealing member. The switch fan is hingedly connected to the fixed frame via the hinge device. The locking device is used to lock the switch fan and the fixed frame, and the sealing member is used to seal the switch fan and the fixed frame. In the locked state, the locking device and the hinge device both allow the switch fan to move toward the fixed frame under the action of the air pressure difference between the two sides to compress the sealing member. The device also includes a drive device for driving the switch fan to open or close. In the event of a power outage, the drive device automatically drives the switch fan to open. This device can achieve a sealing effect that increases with increasing air pressure within the confined space, while ensuring stable locking, resulting in excellent sealing performance. The device can also automatically open the switch fan in the event of a power outage, allowing the confined space to be promptly unblocked from the outside atmosphere, effectively ensuring the safety of personnel within the confined space in the event of a power outage.

Description

Technical Field

[0001] The present invention relates to the technical field of pressurization equipment in high-altitude areas, and in particular to an adaptive sealing enhancement device for a confined space. Background Art

[0002] Due to the low air pressure and oxygen content at high altitudes, pressurized and oxygenated spaces or buildings are required to provide a normal living and working environment for personnel. Existing pressurized and oxygenated spaces or buildings often have mechanically locked seals. After a power outage, manual door opening and ventilation are required, posing a safety hazard. Furthermore, their automatic locking mechanisms are often fixed and cannot automatically adjust to pressure fluctuations. Finally, their hinges are often mechanically adjustable, limiting adjustments to the initial state and failing to adapt to changes in air pressure within the space or building.

[0003] In summary, there is an urgent need for an adaptive sealing enhancement device for a confined space to solve the problems existing in the prior art. Summary of the Invention

[0004] The present invention aims to provide an adaptive sealing enhancement device for a confined space, which aims to achieve adaptive adjustment of the sealing effect of the confined space as the internal air pressure changes. The specific technical solution is as follows:

[0005] An adaptive sealing enhancement device for a confined space comprises a switch fan, a locking device, a hinge device, a fixed frame, and a sealing member. The switch fan is hinged to the fixed frame via the hinge device. The locking device is used to lock the switch fan and the fixed frame. The sealing member is used to seal the switch fan and the fixed frame.

[0006] In the locked state, the locking device and the hinge device both allow the switch fan to move toward the fixing frame under the action of the air pressure difference on both sides to squeeze the sealing member.

[0007] Preferably, the hinge device includes a mounting base, an elastomer, a pin and a rotating part. The mounting base is provided with a strip hole for mounting the pin. The pin is arranged in the strip hole and can move along the length direction of the strip hole. At least one end of the pin is hinged to the rotating part. The elastomer is deformed when the switch fan squeezes the seal to allow the pin to move.

[0008] Preferably in the above technical solution, the hinge device further includes an adjusting screw for adjusting the initial position of the pin in the strip hole, a threaded hole is provided on the mounting base, the adjusting screw is arranged in the threaded hole and the end thereof supports the pin.

[0009] Preferably, in the above technical solution, a blind hole is provided on the pin shaft, and the end of the adjusting screw is arranged in the blind hole to support the pin shaft.

[0010] Preferably in the above technical solution, the mounting base is fixedly connected to the fixed frame, the rotating member is fixedly connected to the switch fan, and the elastomer is arranged on the side of the pin shaft close to the fixed frame, one side of the elastomer supports the pin shaft, and the other side supports the inner wall of the mounting base or the fixed frame.

[0011] Among the above technical solutions, the locking device preferably includes a guide shaft, a mounting seat, a magnetic lock main lock body, a suction piece, a suction piece mounting plate and an elastic telescopic part. The mounting seat is arranged on the switch fan and a guide shaft is slidably arranged on the mounting seat. The suction piece mounting plate is arranged on the guide shaft and an elastic telescopic part is provided between the suction piece mounting plate and the mounting seat; the suction piece is arranged on the suction piece mounting plate, and the suction piece is used to magnetically adsorb with the magnetic lock main lock body on the fixed frame.

[0012] Preferably, in the above technical solution, the guide shaft is provided with an adjusting nut on the side of the mounting seat away from the suction piece mounting plate, and the adjusting nut is used to limit the guide shaft and adjust the initial compression amount of the elastic telescopic member.

[0013] Preferably in the above technical solution, the elastic telescopic member is sleeved on the guide shaft.

[0014] Preferably, the above technical solution also includes a driving device for driving the switch fan to open or close, and the driving device drives the switch fan to automatically open in a power outage state.

[0015] Preferably, in the above technical solution, the driving device includes a push rod and a push rod mounting seat, and both ends of the push rod are connected to the switch fan and the fixed frame respectively through the push rod mounting seat.

[0016] The application of the technical solution of the present invention has the following beneficial effects:

[0017] The locking device and hinge device of the present invention can allow the switch fan to squeeze the seal under the action of air pressure difference, and realize that the sealing effect is enhanced as the internal air pressure of the enclosed space increases while ensuring the stability of the locking. The hinge device and the locking device will not hinder the sealing enhancement process, thereby forming good sealing performance; and the initial sealing state can be adjusted to ensure that the rotation process of the switch fan is smooth and no shaking will occur.

[0018] The driving device can automatically open the switch fan in the event of a power outage, so that the confined space can be connected to the outside atmosphere in a timely manner, effectively ensuring the life safety of people in the confined space in the event of a power outage.

[0019] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 is a top view of the confined space adaptive sealing enhancement device;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the locking device;

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle drive device;

[0024] Figure 4 yes Figure 1 a cross-sectional view of the middle hinge assembly;

[0025] Figure 5 yes Figure 1 Axonometric view of the center hinge assembly;

[0026] Among them, 100, switch fan, 200, locking device, 300, driving device, 400, hinge device, 500, fixing frame, 600, sealing member;

[0027] 201. Guide shaft, 202. Mounting seat, 203. Main lock body of magnetic lock, 204. Suction piece, 205. Suction piece mounting plate, 206. Elastic telescopic member, 207. Adjusting nut; 301. Push rod, 302. Push rod mounting seat; 401. Mounting base, 402. Elastomer, 403. Pin, 404. Adjusting screw, 405. Rotating member. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more fully below, along with preferred embodiments thereof. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Example:

[0031] See also Figure 1-Figure 5, an adaptive sealing enhancement device for a confined space, including a switch fan 100, a locking device 200, a hinge device 400, a fixed frame 500 and a seal 600. The switch fan 100 is hinged to the fixed frame 500 through the hinge device 400, the locking device 200 is used to lock the switch fan 100 and the fixed frame 500, and the seal 600 is used to seal the switch fan 100 and the fixed frame 500; specifically, the seal can be set on the switch fan or on the fixed frame, and the locking device and hinge device are respectively located on both sides of the switch fan.

[0032] In the locked state, the locking device 200 and the hinge device 400 allow the switch fan to move toward the fixing frame under the action of the air pressure difference on both sides to squeeze the seal; Figure 1 As shown, the air pressure inside the enclosed space is greater than the air pressure outside. When the pressure difference between the air pressure in the enclosed space and the outside air pressure is greater, the squeezing effect of the switch fan on the seal is more obvious. That is, this embodiment can achieve adaptive adjustment of the sealing effect according to the actual air pressure changes inside the enclosed space.

[0033] See also Figure 4 and Figure 5 The hinge device 400 includes a mounting base 401, an elastic body 402, a pin 403 and a rotating member 405. The mounting base 401 is provided with a strip hole for mounting the pin 403. The pin 403 is arranged in the strip hole and can move along the length direction of the strip hole (the movement direction of the pin is parallel to the extrusion direction of the switch fan on the seal). At least one end of the pin is hinged to the rotating member 405. The elastic body 402 is deformed when the switch fan squeezes the seal, allowing the pin to move, that is, under the action of the air pressure difference, the pin will move with the switch fan.

[0034] Preferably, in order to ensure the stability of the connection between the rotating member and the pin shaft, both ends of the pin shaft are hinged to the rotating member in this embodiment; specifically, the rotating member is provided with a U-shaped opening, and after the pin shaft is provided in the strip hole, both ends are exposed to the mounting base respectively, and the two sides of the U-shaped opening are respectively hinged to the two ends of the pin shaft, thereby realizing the rotation of the rotating member relative to the mounting base.

[0035] Furthermore, the hinge device 400 also includes an adjusting screw 404 for adjusting the initial position of the pin in the strip hole. A threaded hole is provided on the mounting base 401. The adjusting screw is set in the threaded hole and the end thereof supports the pin 403. The position of the pin in the strip hole can be adjusted by turning the adjusting screw, so that the switch fan forms a good sealing effect with the seal in the initial closed state.

[0036] Preferably, a blind hole is provided on the pin shaft, and the end of the adjusting screw is arranged in the blind hole to support the pin shaft. The advantage of such an arrangement is that the rotation of the pin shaft can be limited, ensuring that the pin shaft can only move in the strip hole and cannot rotate.

[0037] Furthermore, the mounting base 401 is fixedly connected to the fixed frame 500, the rotating member 405 is fixedly connected to the switch fan 100, and the elastic body 402 is arranged on the side of the pin shaft close to the fixed frame. One side of the elastic body presses against the pin shaft, and the other side presses against the inner wall of the mounting base 401 or the fixed frame; as to whether the elastic body presses against the inner wall of the mounting base or the fixed frame, it depends on the structural form of the mounting base.

[0038] Preferably, the elastic member is a rubber member. Alternatively, any elastically deformable material or object (such as a spring) can be used as the elastic member in the hinge device of this embodiment. When the switch fan squeezes the seal, the elastic member deforms and adheres tightly to the pin, providing elastic force to reset the pin after the pressure in the enclosed space is released.

[0039] See also Figure 2 The locking device 200 includes a guide shaft 201, a mounting seat 202, a magnetic lock main lock body 203, a suction piece 204, a suction piece mounting plate 205, and an elastic retractable member 206. The mounting seat 202 is arranged on the switch fan 100 and a guide shaft is slidably arranged on the mounting seat (that is, a guide hole is provided on the mounting seat, and the guide shaft is slidably arranged in the guide hole). The suction piece mounting plate 205 is arranged on the guide shaft 201 and an elastic retractable member 206 is provided between the suction piece mounting plate 205 and the mounting seat 202; the suction piece 204 is arranged on the suction piece mounting plate 205, and the suction piece is used to magnetically adsorb with the magnetic lock main lock body 203 on the fixed frame, that is, to achieve locking; in the locked state, the distance between the suction piece mounting plate and the mounting seat can be further reduced by the deformation of the elastic retractable member, that is, the switch fan can further squeeze the sealing member.

[0040] Furthermore, the guide shaft is provided with an adjusting nut on the side of the mounting seat away from the suction plate mounting plate, and the adjusting nut is used to limit the guide shaft and adjust the initial compression amount of the elastic telescopic part, that is, to achieve a good seal between the switch fan and the sealing part in the initial closed state.

[0041] Preferably, the elastic telescopic member is a spring in the present embodiment, and the elastic telescopic member is sleeved on the guide shaft. Of course, in some embodiments, an elastic rubber product may be used as the elastic telescopic member, so any improvement to the elastic telescopic member based on the present embodiment should be equivalent to the elastic telescopic member in the present embodiment.

[0042] See also Figure 3The enclosed space adaptive sealing enhancement device also includes a driving device 300 for driving the switch fan 100 to open or close. In a power outage state, the driving device drives the switch fan to automatically open to ensure that the enclosed space is connected to the outside world in a timely manner.

[0043] Preferably, the driving device in this embodiment includes a push rod 301 and a push rod mounting base 302. The two ends of the push rod 301 are respectively connected to the switch fan 100 and the fixed frame 500 through the push rod mounting base 302. Preferably, the push rod is a gas spring; of course, other common driving devices may be used in some embodiments, which will not be listed in detail in this embodiment.

[0044] Preferably, the switch fan in this embodiment can be a door, and the fixed frame can be a door frame; alternatively, the switch fan can be a window fan, and the fixed frame can be a window frame.

[0045] The technical solution of this embodiment is specifically:

[0046] Step 1: Adjust the adjusting screw 404 and the adjusting nut 207 to a suitable position so that the switch fan and the sealing member are well sealed and the rotating member rotates smoothly;

[0047] Step 2: Turn on the power, the enclosed space officially works, and the adaptive locking device locks the switch fan;

[0048] Step 3: The air pressure in the enclosed space increases. As the pressure on the high-pressure side gradually increases, the seal is gradually compressed to achieve a seal. During this process, the elastic member 206 adaptively changes to reduce the distance between the mounting seat 202 and the suction plate mounting plate 205. The elastic body 402 adaptively changes to enable the pin to move with the switch fan. Throughout the entire process of increasing air pressure, the adaptive locking device and hinge device will not hinder the seal enhancement process, and the seal can always provide a good sealing effect.

[0049] Step 4: When the power is cut off in the enclosed space, the connection between the suction piece and the main lock body of the magnetic lock fails, and the push rod pushes the switch fan to move until it reaches the opening angle required for ventilation.

[0050] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A closed space adaptive sealing enhancement device, characterized in that: The invention comprises a switch fan (100), a locking device (200), a hinge device (400), a fixing frame (500) and a sealing member (600); the switch fan (100) is hinged to the fixing frame (500) via the hinge device (400); the locking device (200) is used for locking the switch fan (100) and the fixing frame (500); and the sealing member (600) is used for sealing the switch fan (100) and the fixing frame (500); In the locked state, the locking device (200) and the hinge device (400) both allow the switch fan to move toward the fixing frame under the action of the air pressure difference on both sides to squeeze the sealing member; The locking device (200) comprises a guide shaft (201), a mounting seat (202), a magnetic lock main lock body (203), a suction piece (204), a suction piece mounting plate (205) and an elastic telescopic member (206); the mounting seat (202) is arranged on the switch fan (100) and a guide shaft is slidably arranged on the mounting seat; the suction piece mounting plate (205) is arranged on the guide shaft (201) and an elastic telescopic member (206) is arranged between the suction piece mounting plate (205) and the mounting seat (202); the suction piece (204) is arranged on the suction piece mounting plate (205), and the suction piece is used for magnetic adsorption with the magnetic lock main lock body (203) on the fixed frame.

2. The enclosed space adaptive sealing enhancement device according to claim 1, characterized in that: The hinge device (400) includes a mounting base (401), an elastic body (402), a pin (403) and a rotating member (405). The mounting base (401) is provided with a strip hole for mounting the pin (403). The pin (403) is arranged in the strip hole and can move along the length direction of the strip hole. At least one end of the pin is hinged to the rotating member (405). The elastic body (402) is deformed when the switch fan squeezes the seal to allow the pin to move.

3. The enclosed space adaptive sealing enhancement device according to claim 2, characterized in that: The hinge device (400) further comprises an adjusting screw (404) for adjusting the initial position of the pin in the strip hole. The mounting base (401) is provided with a threaded hole. The adjusting screw is arranged in the threaded hole and its end supports the pin (403).

4. The enclosed space adaptive sealing enhancement device according to claim 3, characterized in that: The pin shaft is provided with a blind hole, and the end of the adjusting screw is arranged in the blind hole to support the pin shaft.

5. The enclosed space adaptive sealing enhancement device according to claim 2, characterized in that: The mounting base (401) is fixedly connected to the fixed frame (500), the rotating member (405) is fixedly connected to the switch fan (100), and the elastic body (402) is arranged on the side of the pin close to the fixed frame, one side of the elastic body supports the pin, and the other side supports the inner wall of the mounting base (401) or the fixed frame.

6. The enclosed space adaptive sealing enhancement device according to claim 1, characterized in that: The guide shaft is provided with an adjusting nut on the side of the mounting seat away from the suction piece mounting plate, and the adjusting nut is used to limit the guide shaft and adjust the initial compression amount of the elastic telescopic member.

7. The enclosed space adaptive sealing enhancement device according to claim 1, characterized in that: The elastic telescopic member is sleeved on the guide shaft.

8. The enclosed space adaptive sealing enhancement device according to any one of claims 1 to 7, characterized in that: It also includes a driving device (300) for driving the switch fan (100) to open or close, and the driving device drives the switch fan to automatically open in a power outage state.

9. The enclosed space adaptive sealing enhancement device according to claim 8, characterized in that: The driving device comprises a push rod (301) and a push rod mounting seat (302), and both ends of the push rod (301) are respectively connected to the switch fan (100) and the fixing frame (500) through the push rod mounting seat (302).

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