CN204877177U - Pneumatic shield door device - Google Patents

Abstract

The utility model discloses a pneumatic shielding door device, which is applied in the field of medical equipment, especially the sealing and shielding of the entrance and exit channels of nuclear magnetic resonance equipment factory testing laboratory equipment. The device includes: a door frame, a threshold, a pneumatic mechanism, a shielding reed and a double leaf door leaf. The threshold is arranged at the bottom of the door frame, and the side of the door leaf is connected with the side of the door frame through a hinge. The pneumatic mechanism and the shielding reeds are arranged at the side and top of the door frame at the mutual contact with the door leaf, at the bottom of the door leaf, and at the mutual contact between the two door leaves. When the door leaf is closed, the pneumatic mechanism can compress the shielding reed, so as to realize the shielding and sealing performance of the pneumatic shielding door device. The utility model not only solves the technical problem that the equipment is inconvenient to enter and leave the laboratory, but also greatly improves the electromagnetic shielding and sealing sound insulation performance of the shielding door device.

Description

A pneumatic screen door device

technical field

The utility model relates to a shielding door structure, in particular to a pneumatic shielding door device used in the medical field, especially a nuclear magnetic resonance equipment factory testing laboratory equipment for sealing and shielding the inlet and outlet channels.

Background technique

MRI (magnetic resonance imaging, magnetic resonance imaging) technology is currently a widely used medical image diagnosis technology. The screen door equipment, as the supporting equipment for the MRI room, is mainly used for the entrance and exit of doctors and patients in the MRI examination room, related personnel, and articles and equipment. When the equipment is running, the shielding door is closed, and it forms an electromagnetic isolation barrier with the shielding body, shielding window, various waveguides, and filters, which can reflect, absorb and guide the flow of electromagnetic energy. After the screen door is closed, the transmission of electromagnetic signals indoors and outdoors can be blocked by the shielding system. The pneumatic screen door is to use the air compressor as the air source to realize the push of the screen door shielding system.

The shielded door must have the three conditions of easy and reliable door opening and closing action, good shielding and sealing, and non-magnetic materials used. The existing MRI medical screen door mainly has two kinds of closing forms, one is the common screen door, which adopts manual closing of the door leaf, and the reed is installed on the sides of the door leaf, and the gap is fixed by the door slit, so that the reed is sealed and shielded. The other is the pneumatic screen door, which uses manual closing of the door leaf, and the reed is installed inside the door frame, and the air source of the air pump is used to push against the reed through the cylinder piston, so that the reed is sealed and shielded. Pneumatic screen doors are currently only used in single-leaf screen door systems.

In the application of the testing laboratory of the medical nuclear magnetic resonance equipment factory, the width of the shielded door is more than twice that of the ordinary shielded door, and the height is also higher than that of the ordinary shielded door. Usually, the NMR equipment used in hospitals is installed in place at one time. The channel for the equipment to enter the room is a reserved entrance. The testing laboratory of the equipment factory is a channel with high frequency of equipment entering and exiting the room, so the screen door of the testing laboratory must consider the height and width of the equipment entering and exiting the door.

The existing common double-leaf screen door mainly has the technical defects in the following aspects:

(1) The threshold of the existing ordinary double-leaf screen door is higher than the ground, and there is a certain height with the indoor and outdoor ground. When the equipment frequently enters and exits the room, it needs to be padded with steel plates. Therefore, it is very inconvenient for the equipment to enter and exit, and the safety is also greatly reduced.

(2) The reed compression of the shielding sealing member reed of the existing common double-leaf shield door is to squeeze and compress the reed by manual mode, and the shielding reed is very easy to be damaged. Moreover, the shielding performance of the existing ordinary double-leaf shield door is unstable, and the work is extremely unreliable. The shielding seal is realized by manually opening and closing the door. The reeds are extremely fragile and require frequent replacement of the reeds.

(3) Due to the high-decibel noise of 80-90 decibels generated in the factory inspection and test of medical nuclear magnetic resonance equipment, it seriously affects the working environment and work efficiency of personnel. The door leaf of the existing common double-leaf screen door is generally made of galvanized steel plate shielding material, and the sound insulation and noise reduction effect is poor, and there is no noise reduction material, and the noise attenuation can only reach a limited 10 decibels.

Utility model content

The purpose of this utility model is to provide a pneumatic screen door device, which not only solves the technical problem of inconvenient equipment entering and leaving the laboratory, but also greatly improves the electromagnetic shielding and sealing and sound insulation performance of the screen door device.

In order to achieve the purpose of the above utility model, the utility model specifically provides a technical realization scheme of a pneumatic shielded door device. The pneumatic shielded door device includes: a door frame, a threshold, a pneumatic mechanism, a shielding reed and a double-leaf door leaf. The threshold is arranged at the bottom of the door frame, and the side of the door leaf is connected with the side of the door frame through a hinge. The pneumatic mechanism and the shielding reed are arranged at the mutual contact between the side and top of the door frame and the door leaf, the bottom of the door leaf, and the mutual contact between the two door leaves. When the door leaf is closed, the pneumatic mechanism can compress the shielding reed, thereby realizing the shielding and sealing performance of the pneumatic shielding door device.

Preferably, the pneumatic mechanism includes a cylinder, and the cylinder is arranged on the side and top of the door frame, the bottom of the door leaf, and the side of one of the door leaves, and the shielding spring is compressed by the cylinder. The side of the door leaf or the threshold is tightened, so as to realize the shielding and sealing performance of the pneumatic shielded door device.

Preferably, a control assembly for pneumatically controlling the pneumatic mechanism is further provided on the door frame.

Preferably, the pneumatic screen door device further includes a magnetic lock, and the control assembly further includes an air control mounting plate and a travel switch assembly. The stroke switch assembly is connected with the air control installation plate, and the air control installation plate is connected with the magnetic lock.

Preferably, the travel switch assembly further includes a travel switch 1 and a travel switch 2 connected in series, and the control assembly further includes an emergency power-off switch 1, a filter, and an emergency power-off switch 2 . The second emergency power-off switch, travel switch assembly, filter, emergency power-off switch one, and air control mounting plate are connected in sequence.

Preferably, the air control installation board further includes a terminal 1, a relay, a solenoid valve and a terminal 2, the terminal 1 is connected to the emergency power-off switch 1, and the terminal 1 is also connected to the The relay and the solenoid valve are connected, and the relay is respectively connected with the solenoid valve and the terminal 2, and the terminal 2 is also connected with the magnetic lock.

Preferably, the solenoid valve further includes three L-shaped quick-plug connectors and a muffler connected thereto, one L-shaped quick-plug connector is connected to the air source, and the other two L-shaped quick-plug connectors are connected to the cylinder.

Preferably, the magnetic lock further includes a main body and an auxiliary body, the main body of the magnetic lock is installed on the top of the door frame close to the door leaf, and the auxiliary body of the magnetic lock is installed on the top of the door leaf.

Preferably, the travel switch assembly is further arranged on the top of the door frame at a position close to the door leaf.

By implementing the above-mentioned technical scheme of a pneumatic shield door device of the utility model, the following technical effects can be achieved:

(1) The utility model adopts a pre-embedded zero-threshold structure design. The threshold is pre-buried below the ground, which is equal to the indoor and outdoor ground, which reduces the obstacles of frequent equipment entry and exit, makes it convenient and smooth, and greatly improves the safety of equipment movement. sex.

(2) The utility model adopts a double-leaf pneumatic shield door structure, which increases the width and height of the passageway. The realization of the shield seal is that after the door leaf is closed, the air source of the air pump is vertically pushed by the cylinder piston, and the compressed shield reed is in close contact. . The piston is deflated, the reed returns to its original state, and the door leaf can be opened. This structure reduces the damage probability of the shielding reed, prolongs the service life of the reed, and significantly improves the shielding performance and working reliability.

(3) The utility model adopts shielding, sound insulation, and noise-reducing compound multi-layer door leaf structure materials, and damping and noise-reducing materials are paved on the door frame of the screen door and the noise-facing surface of the door leaf, and the door leaf core of the door leaf is pasted on the wooden material. Copper foil shielding material, the panel is a flame-retardant composite material, the sound insulation and noise reduction effect is significantly improved, and the noise attenuation can reach 30 decibels.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Apparently, the accompanying drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can obtain other embodiments according to these drawings without creative efforts.

Figure 1 is a schematic diagram of the front structure of a specific embodiment of the utility model pneumatic screen door device;

Fig. 2 is a partial enlarged structural schematic diagram of part A in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of the structural layout of the control elements in a specific embodiment of the pneumatic shielded door device of the present invention;

Fig. 4 is a schematic diagram of a partial cross-sectional structure of B-B direction in Fig. 1 of the utility model;

Fig. 5 is a partial cross-sectional structure schematic diagram of C-C direction in Fig. 1 of the utility model;

Fig. 6 is a schematic diagram of a partial cross-sectional structure of the door leaf in a specific embodiment of the pneumatic shielded door device of the present invention;

Fig. 7 is a schematic cross-sectional structure diagram of a side frame in a specific embodiment of the pneumatic shielded door device of the present invention;

Fig. 8 is a schematic diagram of the electrical connection structure of the control components in a specific embodiment of the pneumatic shielded door device of the present invention;

Fig. 9 is a schematic diagram of the layout of the pneumatic mechanism of a single door leaf in a specific embodiment of the pneumatic shielded door device of the present invention;

Fig. 10 is a schematic diagram of the air passage structure of the pneumatic mechanism in a specific embodiment of the pneumatic screen door device of the present invention;

In the figure: 1-door frame, 2-door leaf, 3-door frame side, 4-door leaf side, 5-control component, 6-travel switch component, 7-magnetic lock, 8-side frame, 9-top frame, 10-cylinder , 11-shielding reed, 12-layer, 13-threshold, 14-decorative panel 1, 15-copper foil 1, 16-multilayer board 1, 17-damping layer, 18-multilayer board 2, 19-door core Layer, 20-multilayer board three, 21-copper foil two, 22-decorative panel two, 23-door leaf trim, 24-damping material layer, 25-door frame vertical edge, 26-door leaf vertical rib, 27-buffer strip , 28-Terminal 1, 29-Relay, 30-L-type quick plug connector, 31-Solenoid valve, 32-Terminal 2, 33-Pneumatic control mounting plate, 34-Muffler, 35-Emergency power off switch 1, 36 -filter, 37-travel switch one, 38-travel switch two, 39-emergency power off switch two, 40-hinge.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

As shown in accompanying drawings 1 to 10, a specific embodiment of a pneumatic shielded door device of the present invention is given, and the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in accompanying drawings 1 and 2 , a specific embodiment of a pneumatic shielded door device includes: a door frame 1 , a threshold 13 , a pneumatic mechanism, a shielding reed 11 and a double-leaf door leaf 2 . The threshold 13 and the door frame 1 form the door cover structure of the shielded door device, and the side of the door leaf 2 is connected with the side frame 8 of the door frame 1 through the hinge 40 . The door frame 1 includes a door frame side 3 , and the door leaf 2 includes a door leaf side 4 . The threshold 13 adopts a pre-embedded zero-threshold structure, and the height h shown in Figure 2 is close to zero. The pneumatic mechanism and the shielding reed 11 are arranged at the side and top of the door frame 1 where the door leaves 2 are in contact with each other, the bottom of the door leaves 2 , and the two door leaves 2 where they are in contact with each other. When the door leaf 2 is closed, the pneumatic mechanism can compress the shielding reed 11, thereby realizing the shielding and sealing performance of the pneumatic shielded door device. As shown in accompanying drawing 9 and accompanying drawing 10, it is a schematic diagram of the layout of the pneumatic mechanism of the single door leaf 2 in a specific embodiment of the utility model.

As shown in FIG. 3 , a control assembly 5 for pneumatically controlling the pneumatic mechanism is arranged on the top frame 9 . The pneumatic screen door device also includes a magnetic lock 7, the main body of the magnetic lock 7 is installed on the top frame 9 near the top of the door leaf 2, and the auxiliary body of the magnetic lock 7 is installed on the top of the door leaf 2. The magnetic force lock 7 further comprises a main body and an auxiliary body. The main body of the magnetic force lock 7 is installed on the top frame 9 near the top of the door leaf 2, and the auxiliary body of the magnetic force lock 7 is installed on the top of the door leaf 2. A travel switch assembly 6 is further provided at a position close to the door leaf 2 at the bottom of the top frame 9 .

As shown in accompanying drawing 3 and accompanying drawing 4, pneumatic mechanism further comprises air cylinder 10, and door frame 1 also further comprises top frame 9, and air cylinder 10 is arranged on side frame 8, top frame 9, the bottom of door leaf 2, and wherein a door leaf 2 The cylinder 10 compresses the shielding reed 11 to be close to the side or threshold 13 of the door leaf 2, thereby realizing the shielding and sealing performance of the pneumatic shielded door device. The shielding reeds 11 are arranged on the side frame 8 through screws, and a bead 12 is also arranged between the screws and the side frame 8 .

As shown in Figure 5, the bottom of the door leaf 2 is provided with a cylinder 10 and a shielding reed 11. When the door leaf 2 is closed, the cylinder 10 can compress the shielding reed 11 and closely contact with the top surface of the threshold 13.

As shown in Figure 6, the door leaf 2 further includes a decorative panel 14, a copper foil 15, a multilayer board 16, a damping layer 17, a multilayer board 18, a door core layer 19, and a multilayer board that are layered in sequence. Three 20, copper foil two 21 and decorative panel two 22. The door leaf 2 also includes a door leaf decorative strip 23 , and the door leaf decorative strip 23 is arranged on the inner and outer sides of the contacting side of the two door leaves 2 .

As shown in FIG. 7 , the side frame 8 further includes a damping material layer 24 , a door frame vertical edge 25 and a door leaf vertical rib 26 arranged in sequence from the inside to the outside. The side frame 8 further includes a buffer strip 27 , and the buffer strip 27 is arranged at the contact position between the vertical rib 26 of the door leaf and the door leaf 2 .

As shown in FIG. 8 , the control assembly 5 further includes an air control mounting plate 33 and a travel switch assembly 6 . The travel switch assembly 6 is connected to the air control mounting plate 33 , and the air control mounting plate 33 is connected to the magnetic lock 7 . The travel switch assembly 6 further includes a travel switch one 37 and a travel switch two 38 connected in series. Control assembly 5 also includes emergency power off switch one 35, filter 36 and emergency power off switch two 37, emergency power off switch two 37, travel switch assembly 6, filter 36, emergency power off switch one 35, air control mounting plate 33 are connected successively. The air control installation board 33 further includes a connection terminal 1 28 , a relay 29 , a solenoid valve 31 and a connection terminal 2 32 . Terminal one 28 links to each other with emergency power-off switch one 35, and terminal one 28 also links to each other with relay 29, solenoid valve 31 respectively, and relay 29 links to each other with electromagnetic valve 31, terminal two 32 respectively, and terminal two 32 also links to each other with magnetic force lock 7 connected. The solenoid valve 31 further includes three L-shaped quick-plug connectors 30 and a muffler 34 connected thereto. One L-shaped quick-plug connector 30 is connected to the air source F, and the other two L-shaped quick-plug connectors 30 are connected to the cylinder 10 .

By implementing the pneumatic screen door device described in the specific embodiments of the present invention, the following technical effects can be achieved:

(1) The pneumatic shielded door device described in the specific embodiment of the utility model adopts a pre-buried zero-threshold structure design, and the threshold is pre-buried below the ground, which is equal to the indoor and outdoor ground, which reduces the obstacles of frequent equipment entry and exit, making it convenient and convenient to enter and exit. Smooth, greatly improving the security of equipment movement.

(2) The pneumatic shielded door device described in the specific embodiment of the utility model adopts a double-leaf pneumatic shielded door structure, which increases the width and height of the passageway. Jacking, the compression shielding reeds are in close contact. The piston is deflated, the reed returns to its original state, and the door leaf can be opened. This structure reduces the damage probability of the shielding reed, prolongs the service life of the reed, and significantly improves the shielding performance and working reliability.

(3) The pneumatic shielded door device described in the specific embodiment of the utility model adopts a composite multi-layer door leaf structure material of shielding, sound insulation and noise reduction, and damping and noise reduction materials are paved on the door frame of the shielded door and the noise-reducing surface of the door leaf, and The door core of the door leaf is made of wooden material with copper foil shielding material, and the panel is made of flame-retardant composite material. The sound insulation and noise reduction effect is significantly improved, and the noise attenuation can reach 30 decibels.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the utility model, can use the methods and technical content disclosed above to make many possible changes and modifications to the technical solution of the utility model, or modify it to an equivalent change Equivalent embodiment. Therefore, any simple modifications, equivalent replacements, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still protected by the technical solutions of the present invention. within range.

Claims (9)

1. a pneumatic door apparatus, is characterized in that, comprising: doorframe (1), threshold (13), pneumatic mechanism, shielding finger (11) and biparting door leaf (2); Described threshold (13) is arranged on the bottom of described doorframe (1), and the side of described door leaf (2) is connected with the side of described doorframe (1) by hinge (40); Described pneumatic mechanism and described shielding finger (11) are arranged on the side of described doorframe (1) and top and contacting with each other of described door leaf (2) and locate, the bottom of described door leaf (2), and the place that contacts with each other between the two described door leaf of fans (2); After described door leaf (2) cuts out, described pneumatic mechanism can compress described shielding finger (11), thus realizes the shield gasket usefulness of described pneumatic door apparatus.

2. pneumatic door apparatus according to claim 1, it is characterized in that: described pneumatic mechanism comprises cylinder (10), described cylinder (10) is arranged on side, the top of described doorframe (1), the bottom of described door leaf (2), and wherein Yishanmen fans the side of (2), compress by described cylinder (10) side or the described threshold (13) that described shielding finger (11) is adjacent to described door leaf (2), thus realize the shield gasket usefulness of described pneumatic door apparatus.

3. pneumatic door apparatus according to claim 2, is characterized in that: on described doorframe (1), be provided with the Control Component (5) described pneumatic mechanism being carried out to pneumatic control further.

4. pneumatic door apparatus according to claim 3, it is characterized in that: described pneumatic door apparatus also comprises magnetic key operated lock (7), described Control Component (5) comprises gas control installing plate (33) and travel switch assembly (6) further; Described travel switch assembly (6) is connected with described gas control installing plate (33), and described gas control installing plate (33) is connected with described magnetic key operated lock (7).

5. pneumatic door apparatus according to claim 4, it is characterized in that: described travel switch assembly (6) comprises travel switch one (37) and the travel switch two (38) of series connection mutually further, described Control Component (5) also comprises urgent power-off switch one (35), wave filter (36) and urgent power-off switch two (39), and described urgent power-off switch two (39), travel switch assembly (6), wave filter (36), urgent power-off switch one (35), gas control installing plate (33) are connected successively.

6. pneumatic door apparatus according to claim 5, it is characterized in that: described gas control installing plate (33) also comprises wiring terminal one (28) further, relay (29), electromagnetic valve (31) and wiring terminal two (32), described wiring terminal one (28) is connected with described urgent power-off switch one (35), described wiring terminal one (28) also respectively with described relay (29), electromagnetic valve (31) is connected, described relay (29) respectively with described electromagnetic valve (31), wiring terminal two (32) is connected, described wiring terminal two (32) is also connected with described magnetic key operated lock (7).

7. pneumatic door apparatus according to claim 6, it is characterized in that: described electromagnetic valve (31) comprises three coupled L-type quick connectors (30) and sound absorber (34) further, a L-type quick connector (30) connects source of the gas, and two other L-type quick connector (30) connects described cylinder (10).

8. the pneumatic door apparatus according to any one of claim 4,5,6 or 7, it is characterized in that: described magnetic key operated lock (7) comprises main body and accessory body further, the main body of described magnetic key operated lock (7) is arranged on described doorframe (1) top near the position of described door leaf (2), and the accessory body of described magnetic key operated lock (7) installs the top of described door leaf (2).

9. pneumatic door apparatus according to claim 8, is characterized in that: described travel switch assembly (6) is arranged on the position of top near described door leaf (2) of described doorframe (1) further.