Anti-magnetic-interference sealing structure for shielding door of magnetic resonance room

Abstract

The utility model discloses an anti-magnetic-interference magnetic resonance room shielding door sealing structure, which relates to the technical field of magnetic resonance, and comprises an anti-magnetic-interference door plate, one side of the anti-magnetic-interference door plate is provided with an extrusion assembly, the extrusion assembly comprises an extrusion ring inserted on one side of the anti-magnetic-interference door plate, the anti-magnetic-interference door plate is provided with a cavity, and the cavity is provided with a sealing cover. A sealing ring is slidably connected into the cavity, a reset spring is fixedly installed on one side of the sealing ring, one end of the reset spring is fixedly connected with one side of the inner wall of the cavity, and the surface of the anti-magnetic-interference door plate is sleeved with an air bag ring. The anti-magnetic-interference sealing structure for the shielding door of the magnetic resonance room is provided with the extrusion assembly, when the door is closed, the extrusion ring extrudes air on one side of the sealing ring into the air bag ring, so that the air bag ring is attached to the door frame, and the sealing effect is improved. The effects that the sealing performance between the door frame and the door can be improved while the sealing structure is closed, automatic sealing of the door in the closing or opening process is avoided, the number of sealing procedures is reduced, and the sealing structure is easy to use are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic resonance, in particular to a magnetic resonance room shielding door sealing structure for preventing magnetic interference. Background Art

[0002] Magnetic resonance refers to the phenomenon of spin magnetic resonance, which has a broader meaning and includes nuclear magnetic resonance, electron paramagnetic resonance or electron spin resonance. In addition, the magnetic resonance that people often talk about in daily life refers to magnetic resonance imaging, which is a type of imaging equipment used for medical examinations made using the phenomenon of nuclear magnetic resonance. Materials with different magnetic properties may exhibit different magnetic resonances under certain conditions. The following lists the various magnetic properties of materials and their corresponding magnetic resonances: Various magnetic resonances have both commonalities and characteristics. The commonality is that the basic principles can be described phenomenologically in a unified way, while the characteristics are that various resonances have specific conditions and different microscopic mechanisms for their generation. Cyclotron resonance comes from the transition of carriers between orbital magnetic energy levels, and its excitation field is a high-frequency electric field perpendicular to the constant magnetic field, while other excitation fields from spin magnetic resonance are high-frequency magnetic fields. Shielding doors are used in magnetic resonance rooms, and sealing structures are used to avoid the influence of magnetic resonance on the outside world.

[0003] However, when the shielding door is actually used in the magnetic resonance imaging room, the sealing between the shielding door and the door frame cannot be increased while the shielding door is closed, thereby affecting the normal sealing operation of the structure and affecting the normal use in the later stage. Utility Model Content

[0004] The utility model discloses a magnetic interference-proof shielding door sealing structure for a magnetic resonance room, aiming to solve the technical problem that the sealing performance between the door and the door frame cannot be increased when the shielding door is closed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A magnetic resonance room shielding door sealing structure for preventing magnetic interference comprises a magnetic interference-proof door panel, one side of which is provided with an extrusion component.

[0007] The extrusion assembly includes an extrusion ring inserted on one side of the anti-magnetic interference door panel, a cavity is opened on the anti-magnetic interference door panel, a sealing ring is slidably connected to the inside of the cavity, a reset spring is fixedly installed on one side of the sealing ring, one end of the reset spring is fixedly connected to one side of the inner wall of the cavity, an airbag ring is provided on the surface of the anti-magnetic interference door panel, and the airbag ring is connected to the cavity through the air hole opened on the anti-magnetic interference door panel.

[0008] Through the extrusion assembly, when the door is closed, the extrusion ring squeezes the gas on one side of the sealing ring into the interior of the airbag ring, so that the airbag ring fits against the door frame, thereby increasing the sealing between the door frame and the door while closing the sealing structure, avoiding automatic sealing of the door during closing or opening, reducing the sealing process, and making it easier to use.

[0009] A sealing assembly is provided on one side of the anti-magnetic interference door panel, and the sealing assembly includes a positioning ring arranged on one side of the anti-magnetic interference door panel, a positioning groove is opened on one side of the positioning ring, and buffer strips are fixedly installed on both sides of the inner wall of the positioning groove, a silicone ring is fixedly installed on one side of the buffer strip, and a shock-absorbing ring is fixedly installed on one side of the silicone ring, and one side of the shock-absorbing ring is fixedly connected to one side of the anti-magnetic interference door panel.

[0010] The sealing assembly, buffer strip and buffer sheet are provided to dampen the shock-absorbing ring on the silicone ring, so that the door can be protected during the closing process. At the same time, it is also convenient to increase the fit between the door and the door frame, which can increase the sealing of the sealing structure and increase the safety of the sealing structure.

[0011] In a preferred solution, the inner wall of the airbag ring is fixedly connected to the surface of the anti-magnetic interference door panel, and the surface of the sealing ring is in contact with the inner wall of the cavity.

[0012] By fixing the inner wall of the airbag ring to the inner wall of the anti-magnetic interference door panel, the positioning of the airbag ring is facilitated during use, and the sealing between the airbag ring and the anti-magnetic interference door panel is also increased.

[0013] In a preferred solution, an annular groove for the extrusion ring to pass through is opened on one side of the anti-magnetic interference door panel, the inner wall of the annular groove is slidably connected to the surface of the extrusion ring, and the extrusion ring is adapted to the annular groove.

[0014] By providing an extrusion ring that is adapted to the annular groove, the extrusion ring can be easily moved inside the annular groove during use, thereby preventing the position of the extrusion ring from being shifted.

[0015] In a preferred solution, the buffer strip is made of rubber, the positioning ring is made of silicone, and buffer sheets are fixedly installed on both sides of the inner wall of the positioning groove on the positioning ring, and one side of the buffer sheet is fixedly connected to one side of the silicone ring.

[0016] The buffer strips and buffer sheets are provided to facilitate the buffering and positioning operations of the silicone ring during use, facilitate subsequent protection of the components, and also facilitate better fitting between the silicone ring and the components.

[0017] In a preferred solution, the inner wall of the positioning groove on the positioning ring is slidably connected to the surface of the silicone ring, and the silicone ring is adapted to the positioning groove.

[0018] By matching the provided silicone ring with the positioning groove, the silicone ring can be conveniently limited in position during use to prevent the silicone ring from shifting during movement.

[0019] In a preferred solution, a support ring is sleeved on the surface of the anti-magnetic interference door panel, and one side of the support ring contacts one side of the airbag ring.

[0020] By providing the support ring, when in use, the support ring can support one side of the airbag ring, so as to facilitate maintaining the positioning of the airbag ring.

[0021] In a preferred solution, a mounting plate is fixedly mounted on one side of the back of the anti-magnetic interference door panel, and a mounting hole is opened on the mounting plate, and the mounting hole is a circular hole.

[0022] The provided mounting plate makes it easy to install and position the structure, making it convenient for subsequent staff to disassemble and assemble.

[0023] As can be seen from the above, the magnetic resonance room shielding door sealing structure for preventing magnetic interference provided by the present invention has the following technical effects.

[0024] First: through the extrusion assembly, when the door is closed, the extrusion ring squeezes the gas on one side of the sealing ring into the interior of the airbag ring, so that the airbag ring fits against the door frame, thereby increasing the sealing between the door frame and the door while closing the sealing structure, avoiding automatic sealing of the door during closing or opening, reducing the sealing process, and simplifying operation.

[0025] Secondly: through the provided sealing components, buffer strips and buffer sheets, the shock-absorbing ring on the silicone ring is shock-absorbing and buffered, so that the door can be protected during the closing process. At the same time, it is also convenient to increase the fit between the door and the door frame, which can increase the sealing of the sealing structure and increase the safety of the shield door. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a first-perspective three-dimensional structural diagram of the magnetic resonance room shielding door sealing structure for preventing magnetic interference proposed by the present invention.

[0027] Figure 2 This is a schematic diagram of the third perspective structure of the magnetic resonance room shielding door sealing structure for preventing magnetic interference proposed by the present invention.

[0028] Figure 3 This is a schematic three-dimensional cross-sectional view of the sealing structure of the magnetic resonance room shielding door for preventing magnetic interference proposed by the present invention.

[0029] Figure 4 This is a schematic three-dimensional cross-sectional view of the positioning ring of the magnetic resonance room shielding door sealing structure for preventing magnetic interference proposed by the present invention.

[0030] In the accompanying drawings: 1. Anti-magnetic interference door panel; 2. Extrusion assembly; 200. Extrusion ring; 201. Sealing ring; 202. Reset spring; 203. Airbag ring; 3. Sealing assembly; 300. Positioning ring; 301. Buffer strip; 302. Silicone ring; 303. Shock-absorbing ring; 304. Buffer sheet; 4. Support ring; 5. Mounting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] Reference Figure 1 、 Figure 2 and Figure 3 , the magnetic resonance room shielding door sealing structure for anti-magnetic interference includes an anti-magnetic interference door panel 1, the anti-magnetic interference door panel 1 is made of iron plate, and the anti-magnetic interference door panel 1 is grounded to the ground of the magnetic resonance room by copper wire, an extrusion component 2 is provided on one side of the anti-magnetic interference door panel 1, the extrusion component 2 includes an extrusion ring 200 inserted on one side of the anti-magnetic interference door panel 1, a cavity is opened on the anti-magnetic interference door panel 1, a sealing ring 201 is slidably connected to the inside of the cavity, a return spring 202 is fixedly installed on one side of the sealing ring 201, one end of the return spring 202 is fixedly connected to one side of the inner wall of the cavity, an airbag ring 203 is provided on the surface of the anti-magnetic interference door panel 1, the inner wall of the airbag ring 203 is fixedly connected to the surface of the anti-magnetic interference door panel 1, and the sealing ring 201 is fixedly connected to the inner wall of the cavity. The surface fits with the inner wall of the cavity, and the inner wall of the airbag ring 203 is fixedly connected to the inner wall of the anti-magnetic interference door panel 1. During use, the positioning of the airbag ring 203 is convenient, and the sealing between the airbag ring 203 and the anti-magnetic interference door panel 1 is also increased. The airbag ring 203 is connected to the cavity through the air hole opened on the anti-magnetic interference door panel 1. The extrusion component 2 is set. When the door is closed, the extrusion ring 200 squeezes the gas on one side of the sealing ring 201 into the interior of the airbag ring 203, so that the airbag ring 203 fits with the door frame, and the sealing structure is closed while the sealing between the door frame and the door is increased, avoiding automatic sealing of the door during closing or opening, reducing the sealing process, and making it simple to use.

[0034] Reference Figure 1 and Figure 4 A sealing component 3 is provided on one side of the anti-magnetic interference door panel 1. The sealing component 3 includes a positioning ring 300 provided on one side of the anti-magnetic interference door panel 1. A positioning groove is opened on one side of the positioning ring 300. Buffer strips 301 are fixedly installed on both sides of the inner wall of the positioning groove. A silicone ring 302 is fixedly installed on one side of the buffer strip 301. A shock-absorbing ring 303 is fixedly installed on one side of the silicone ring 302. One side of the shock-absorbing ring 303 is fixedly installed. One side of the shock-absorbing ring 303 is fixedly connected to one side of the anti-magnetic interference door panel 1. The provided sealing component 3, the buffer strip 301 and the buffer sheet 304 perform shock-absorbing and buffering on the shock-absorbing ring 303 on the silicone ring 302, so that the door can be protected during the closing process. At the same time, it is also convenient to increase the fit between the door and the door frame, which can increase the sealing performance of the sealing structure and increase the safety of the use of the sealing structure.

[0035] Reference Figure 1 and Figure 3 In a preferred embodiment, an annular groove for the passage of the extrusion ring 200 is opened on one side of the anti-magnetic interference door panel 1, and the inner wall of the annular groove is slidably connected to the surface of the extrusion ring 200, and the extrusion ring 200 is adapted to the annular groove. The extrusion ring 200 is adapted to the annular groove. During use, it is convenient for the extrusion ring 200 to move inside the annular groove during use, and the position of the extrusion ring 200 is prevented from shifting. A support ring 4 is provided on the surface of the anti-magnetic interference door panel 1, and one side of the support ring 4 contacts one side of the airbag ring 203. The support ring 4 is provided, and when in use, the support ring 4 can support one side of the airbag ring 203, so as to maintain the positioning of the airbag ring 203.

[0036] Reference Figure 4 In a preferred embodiment, the buffer strip 301 is made of rubber and the positioning ring 300 is made of silicone. Buffer sheets 304 are fixedly installed on both sides of the inner wall of the positioning groove on the positioning ring 300, and one side of the buffer sheet 304 is fixedly connected to one side of the silicone ring 302. The provided buffer strip 301 and buffer sheet 304 facilitate the buffering and positioning operations of the silicone ring 302 during use, facilitate the subsequent protection of the components, and also facilitate better fit with the components. The inner wall of the positioning groove on the positioning ring 300 is slidably connected to the surface of the silicone ring 302, and the silicone ring 302 is adapted to the positioning groove. The provided silicone ring 302 is adapted to the positioning groove, and during use, it is convenient to limit the silicone ring 302 to prevent the silicone ring 302 from shifting in position during movement.

[0037] Reference Figure 2In a preferred embodiment, a mounting plate 5 is fixedly installed on one side of the back of the anti-magnetic interference door panel 1. A mounting hole is opened on the mounting plate 5, and the mounting hole is a circular hole. The setting of the mounting plate 5 can facilitate the installation and positioning of the structure and facilitate the subsequent disassembly and assembly by the staff.

[0038] Working principle: When in use, the structure is installed on the door frame through the mounting plate 5, and then in the process of closing the door, the extrusion ring 200 on the anti-magnetic interference door panel 1 contacts the door frame, and the extrusion ring 200 is squeezed with the door frame, so that the gas on one side of the sealing ring 201 is compressed, so that it enters the interior of the airbag ring 203, and the airbag ring 203 bulges to fill the gap on the door frame. At the same time, when the door is closed in place, the positioning ring 300 is squeezed, and then the buffer strip 301 and the buffer sheet 304 buffer the silicone ring 302, and the shock-absorbing ring 303 protects it, so as to increase its protectiveness during use and also increase the fit with the door frame. When the door is opened, the door frame loses the pressure on the extrusion ring 200, and the reset spring 202 resets the sealing ring 201, so that the gas in the airbag ring 203 enters the interior of the cavity, thereby facilitating its opening.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A magnetic resonance room shielding door sealing structure for preventing magnetic interference, comprising a magnetic interference preventing door panel (1), characterized in that: An extrusion assembly (2) is provided on one side of the anti-magnetic interference door panel (1); The extrusion assembly (2) comprises an extrusion ring (200) inserted on one side of the anti-magnetic interference door panel (1); a cavity is provided on the anti-magnetic interference door panel (1); a sealing ring (201) is slidably connected to the interior of the cavity; a return spring (202) is fixedly installed on one side of the sealing ring (201); one end of the return spring (202) is fixedly connected to one side of the inner wall of the cavity; an airbag ring (203) is sleeved on the surface of the anti-magnetic interference door panel (1); the airbag ring (203) is connected to the cavity through an air hole provided on the anti-magnetic interference door panel (1); A sealing assembly (3) is provided on one side of the anti-magnetic interference door panel (1), and the sealing assembly (3) includes a positioning ring (300) provided on one side of the anti-magnetic interference door panel (1), a positioning groove is provided on one side of the positioning ring (300), and buffer strips (301) are fixedly installed on both sides of the inner wall of the positioning groove, a silicone ring (302) is fixedly installed on one side of the buffer strip (301), a shock-absorbing ring (303) is fixedly installed on one side of the silicone ring (302), and one side of the shock-absorbing ring (303) is fixedly connected to one side of the anti-magnetic interference door panel (1).

2. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, characterized in that: The inner wall of the airbag ring (203) is fixedly connected to the surface of the anti-magnetic interference door panel (1), and the surface of the sealing ring (201) is in contact with the inner wall of the cavity.

3. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, characterized in that: An annular groove for the extrusion ring (200) to pass through is provided on one side of the anti-magnetic interference door panel (1); the inner wall of the annular groove is slidably connected to the surface of the extrusion ring (200), and the extrusion ring (200) is adapted to the annular groove.

4. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, wherein: The buffer strip (301) is made of rubber, the positioning ring (300) is made of silicone, and buffer sheets (304) are fixedly installed on both sides of the inner wall of the positioning groove on the positioning ring (300), and one side of the buffer sheet (304) is fixedly connected to one side of the silicone ring (302).

5. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, characterized in that: The inner wall of the positioning groove on the positioning ring (300) is slidably connected to the surface of the silicone ring (302), and the silicone ring (302) is adapted to the positioning groove.

6. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, characterized in that: A support ring (4) is sleeved on the surface of the anti-magnetic interference door panel (1), and one side of the support ring (4) is in contact with one side of the airbag ring (203).

7. The magnetic resonance room shielding door sealing structure for preventing magnetic interference according to claim 1, characterized in that: A mounting plate (5) is fixedly mounted on one side of the back of the anti-magnetic interference door panel (1), and a mounting hole is provided on the mounting plate (5), which is a circular hole.

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