Lead protection shutter special for exhaust outlet of radiation machine room

Abstract

The utility model belongs to the technical field of shutters, and particularly relates to a lead protection shutter special for an air outlet of a radiation machine room, which comprises an aluminum window frame, a window is arranged in the aluminum window frame, a plurality of movable aluminum shutter blades are sequentially mounted in the window from top to bottom, and a synchronous moving group is further arranged on the aluminum window frame. The synchronous moving set and the aluminum louver blades are connected through elastic buffering pieces, each aluminum louver blade comprises a fixed louver fixedly connected into the window, a vertical groove with an opening in the lower side is formed in the fixed louver, a movable louver is slidably connected into the vertical groove, and the lower end of the movable louver is fixedly connected with a bottom piece. The upper side of the bottom piece is fixedly connected with the lower side of the elastic buffering piece, and one side of the interior of the vertical groove is fixedly connected with an extrusion elastic piece abutting against the movable shutter. According to the lead protection shutter, the motion difference of a plurality of aluminum shutter blades can be eliminated through deformation of the elastic buffer piece, and gaps generated when the lead protection shutter is in a sealed state are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of shutters, and in particular relates to a special lead protection shutter for an exhaust vent in a radiation room. Background Art

[0002] The radiation room is usually located inside the hospital. In order to ensure the ventilation performance of the radiation room, an exhaust vent is usually set in the radiation room, and a shutter is set at the exhaust vent. The exhaust vent is sealed during the use of the radiation room to achieve the purpose of radiation protection;

[0003] For example, the Chinese patent with the authorization announcement number CN217817375U discloses a lead protective shutter for the exhaust vent of a radiation room, which uses a lead protective shutter made of lead to reduce the phenomenon of radioactive radiation irradiating the outside of the radiation room;

[0004] However, due to the limitation of processing precision, there will be certain differences in the shapes of multiple louvers. When multiple louvers are closed synchronously, some of the closed louvers will restrict the movement of other louvers, resulting in certain gaps when the louvers are closed, affecting their radiation protection effect. Utility Model Content

[0005] The utility model aims to provide a special lead protection shutter for the exhaust vent of a radiation room, which can eliminate the difference in the movement of multiple aluminum shutters through the deformation of an elastic buffer and reduce the gap when the lead protection shutter is in a sealed state.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A lead protective shutter specially used for an exhaust vent in a radiation room comprises an aluminum window frame, a window is arranged inside the aluminum window frame, a plurality of movable aluminum shutter blades are installed inside the window in a sequence from top to bottom, a synchronous moving group is also arranged on the aluminum window frame, and the synchronous moving group and the aluminum shutter blades are connected by an elastic buffer.

[0008] Furthermore, the aluminum louver includes a fixed louver fixedly connected to the inside of the window, the inside of the fixed louver is provided with a vertical groove with a lower opening, the inside of the vertical groove is slidably connected with a movable louver, the lower end of the movable louver is fixedly connected to a bottom plate, and the upper side of the bottom plate is fixedly connected to the lower side of the elastic buffer.

[0009] Furthermore, a squeezing spring sheet that abuts against the movable shutter is fixedly connected to one side of the vertical slot.

[0010] Furthermore, the elastic buffer is any one of a return spring, a V-shaped spring sheet and a hollow rubber block.

[0011] Furthermore, the synchronous movement group includes a plurality of branch rods and a linear moving member driving the plurality of branch rods to move, and the plurality of branch rods are respectively fixedly connected to the upper sides of the plurality of elastic buffer members.

[0012] Furthermore, the linear moving member comprises an electric push rod fixedly connected to the aluminum window frame, the output end of the electric push rod is fixedly connected to a main push rod, and the plurality of branch rods are fixedly connected to the outer side of the main push rod.

[0013] The technical effects achieved by the utility model are:

[0014] The utility model discloses a lead protection shutter specially used for an exhaust vent of a radiation room, in which an elastic buffer is arranged between the aluminum shutter blades and a synchronous moving group, so that the difference in the movement of a plurality of aluminum shutter blades can be eliminated through the deformation of the elastic buffer blades, thereby reducing the gap when the lead protection shutter is in a sealed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model in a sealed state;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model in ventilation state;

[0017] Figure 3 It is a partial side view structural diagram of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the synchronous mobile group of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Aluminum window frame; 2. Window; 3. Fixed shutter; 4. Vertical slot; 5. Extrusion spring; 6. Movable shutter; 7. Bottom film; 8. Elastic buffer; 9. Electric push rod; 10. Main push rod; 11. Branch rod. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0022] like Figure 1-2As shown, a lead protection shutter specially used for an exhaust vent in a radiation room comprises an aluminum window frame 1, a window 2 is arranged inside the aluminum window frame 1, and a plurality of movable aluminum shutter blades are installed inside the window 2 in a sequence from top to bottom. The lead protection shutter comprises a sealing state and a ventilation state. The sealing state is that two adjacent aluminum shutter blades are against each other, and the ventilation state is that two adjacent aluminum shutter blades are separated. At this time, a ventilation channel appears between the two adjacent aluminum shutter blades, and ventilation can be performed.

[0023] In order to control the movement of the aluminum louver, a synchronous moving group is further provided on the aluminum window frame 1, and the synchronous moving group and the aluminum louver are connected by an elastic buffer 8. At this time, the setting of the elastic buffer 8 makes the synchronous moving group drive the aluminum louver to move, and the elastic deformation of the elastic buffer 8 allows the aluminum louver to have a certain buffer zone, that is, when the synchronous moving group drives the aluminum louver and another aluminum louver to resist, the deformation of the elastic buffer 8 makes it impossible for the synchronous moving group to drive the aluminum louver to move until all the aluminum louvers can be closed, thereby reducing the gap when the lead protective shutter is in a sealed state, and the processing accuracy requirements for the aluminum louver are relatively low.

[0024] like Figure 1-3 As shown, the aluminum louver includes a fixed louver 3 fixedly connected to the inside of the window 2, the inside of the fixed louver 3 is provided with a vertical groove 4 which is opened at the lower side, the inside of the vertical groove 4 is slidably connected with a movable louver 6, the lower end of the movable louver 6 is fixedly connected with a bottom plate 7, the upper side of the bottom plate 7 and the lower side of the elastic buffer 8 are fixedly connected, when the movable louver 6 moves downward until it abuts against another fixed louver 3, the closure of the movable louver 6 can be completed, and when the movable louver 6 abuts against another fixed louver 3, the elastic buffer 8 can reduce the movement of the movable louver 6 driven by the synchronous moving group.

[0025] Moreover, in order to further reduce the gap of the lead protective shutter, an extrusion spring piece 5 that abuts against the movable shutter 6 is fixedly connected to one side of the vertical groove 4. By applying elastic force to the movable shutter 6 by the extrusion spring piece 5, the movable shutter 6 and the inner wall of the vertical groove 4 can be tightly abutted against each other, thereby reducing the ventilation gap between the fixed shutter 3 and the movable shutter 6.

[0026] The elastic buffer 8 can be any one of a return spring, a V-shaped spring sheet and a hollow rubber block, preferably a hollow rubber block, which has good deformation performance and buffering performance.

[0027] like Figure 2-4 As shown, the synchronous moving group includes a plurality of branch rods 11 and a linear moving part that drives the plurality of branch rods 11 to move. The plurality of branch rods 11 are respectively fixedly connected to the upper sides of a plurality of elastic buffers 8. When the branch rods 11 move, the film 7 is driven to move together through the elastic buffers 8, thereby completing the synchronous movement.

[0028] The linear moving part includes an electric push rod 9 fixedly connected to the aluminum window frame 1, the output end of the electric push rod 9 is fixedly connected to the main push rod 10, and multiple branch rods 11 are fixedly connected to the outside of the main push rod 10. At this time, when the electric push rod 9 is started, the multiple branch rods 11 can be driven to move together through the main push rod 10, and they are self-locking after the movement is completed.

[0029] The working principle of the utility model is as follows: when the window 2 needs to be sealed, the electric push rod 9 is started to drive the main push rod 10 to move. When the main push rod 10 moves, it will drive multiple branch rods 11 to move together, so that the branch rods 11 drive the bottom film 7 to move together through the elastic buffer 8 until the movable shutter 6 and the fixed shutter 3 are against each other. The deformation of the elastic buffer 8 makes it impossible for the branch rods 11 to drive the movable shutter 6 to move until all the aluminum shutter blades can be closed.

[0030] In summary, the technical solution sets an elastic buffer 8 between the aluminum louvers and the synchronous moving group, which can eliminate the difference in the movements of multiple aluminum louvers through the deformation of the elastic buffer 8 and reduce the gap when the lead protective louver is in a sealed state.

[0031] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A lead protective shutter for an exhaust vent in a radiation room, comprising an aluminum window frame (1), a window (2) being arranged inside the aluminum window frame (1), a plurality of movable aluminum shutter blades being installed inside the window (2) in order from top to bottom, characterized in that: The aluminum window frame (1) is also provided with a synchronous movement group, and the synchronous movement group and the aluminum louver are connected via an elastic buffer (8).

2. The lead protection shutter for the exhaust vent of a radiation room according to claim 1, characterized in that: The aluminum louver comprises a fixed louver (3) fixedly connected to the inside of the window (2), a vertical slot (4) with a lower opening arranged inside the fixed louver (3), a movable louver (6) slidably connected inside the vertical slot (4), a bottom plate (7) fixedly connected to the lower end of the movable louver (6), and an upper side of the bottom plate (7) fixedly connected to a lower side of an elastic buffer (8).

3. The lead protection shutter for the exhaust vent of a radiation room according to claim 2 is characterized by: A squeezing spring sheet (5) abutting against the movable shutter (6) is fixedly connected to one side of the interior of the vertical slot (4).

4. The lead protection shutter for the exhaust vent of a radiation room according to claim 1, characterized in that: The elastic buffer (8) is any one of a return spring, a V-shaped spring sheet and a hollow rubber block.

5. The lead protection shutter for the exhaust vent of a radiation room according to claim 2, characterized in that: The synchronous movement group comprises a plurality of branch rods (11) and a linear moving member driving the plurality of branch rods (11) to move, and the plurality of branch rods (11) are respectively fixedly connected to the upper sides of a plurality of elastic buffer members (8).

6. The lead protection shutter for the exhaust vent of a radiation room according to claim 5, characterized in that: The linear moving part comprises an electric push rod (9) fixedly connected to an aluminum window frame (1), the output end of the electric push rod (9) is fixedly connected to a main push rod (10), and a plurality of branch rods (11) are fixedly connected to the outer side of the main push rod (10).

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