Heavy radiation protection door

Abstract

The utility model relates to the technical field of radiation protection doors, in particular to a heavy radiation protection door which comprises a door body, a receding block, a blocking piece and a pushing and pressing piece, the door body is provided with a guide rail groove, a wedge block is fixed to the end of the guide rail groove, and the receding block, the blocking piece and the pushing and pressing piece are arranged above the door body. The upper end of the receding block is provided with a forward extending part extending forwards to the outer side of the guide rail groove. The plugging piece at least comprises a main body part and a plugging strip connected to the main body part. When the door body is closed to the tail end, the wedge-shaped block pushes the receding block to move upwards, the control switch above the receding block touches the lower plate body to be triggered, the air cylinder extends and drives the pressing wheel to press the position above the main body part of the blocking piece, and the blocking piece slides along the T-shaped guide rail till the blocking strip moves into a gap between the door body above the guide rail groove and the forward extending part. The gap above the guide rail groove can be isolated when the door body is closed, the sealing performance of the edge of the door body of the heavy radiation-proof door is improved, and a better radiation-proof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiation protection doors, in particular to a heavy-duty radiation protection door. Background Art

[0002] Heavy-duty radiation-proof doors are often used in medical facilities such as radiotherapy rooms, CT rooms, X-ray rooms, etc., as well as industrial facilities involving high-energy rays to prevent harmful ionizing radiation from leaking into surrounding areas. The guide rail groove of the radiation-proof door, that is, the area along which the door slides when opening and closing, is one of the important links in the anti-leakage design. In the existing door design, it is impossible to ensure that there is no gap between the door and the guide rail when the door is in the closed state, and the edge sealing is not good enough, which poses an invisible risk of radiation leakage. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] The utility model aims to provide a heavy-duty radiation protection door, improve the sealing performance of the edge of the heavy-duty radiation protection door, and enhance the radiation protection capability.

[0005] 2. Technical Solution

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model proposes a heavy-duty radiation protection door, comprising a door body, wherein the door body is provided with a guide rail groove, a wedge block is fixed at the end of the guide rail groove, and also comprises a clearance block, a blocking piece and a pushing piece arranged above the door body, the side surface of the clearance block is provided with a first inclined surface that fits with the inclined surface of the wedge block, the upper end of the clearance block has a forward extension portion extending forward to the outside of the guide rail groove, and the blocking piece at least comprises a main body and a blocking strip connected to the main body; when the door body moves horizontally and closes, the wedge block pushes the clearance block to move upward, and the blocking piece is pushed by the pushing piece, so that the blocking strip moves above the guide rail groove and extends into the gap between the door body and the forward extension portion.

[0008] Furthermore, a second inclined surface is provided below the forward extension portion, a T-shaped guide rail is fixed to the lower surface of the second inclined surface, the main body portion has an inclined portion with the same slope as the second inclined surface, and a T-shaped groove slidably connected to the T-shaped guide rail is provided on the inclined portion.

[0009] Furthermore, a guide rod is fixedly connected above the give way block, and a fixed frame is arranged above the give way block, and the fixed frame includes an upper plate body, a lower plate body and a connecting rod fixedly connected between the upper plate body and the lower plate body, and a guide hole slidably connected to the guide rod is opened on the lower plate body, and the upper end of the guide rod extends above the guide hole and is fixedly connected to an end head, and a compression spring is sleeved on the guide rod, and the upper and lower ends of the compression spring are respectively fixedly connected to the end head and the upper surface of the lower plate body.

[0010] Furthermore, the pushing member is a cylinder fixedly connected to the lower surface of the upper plate body, the telescopic end of the cylinder faces downward and is fixedly connected to a pressure wheel, and the pressure wheel abuts against the top of the main body.

[0011] Furthermore, a control switch is fixed on the upper surface of the clearance block, the control switch is electrically connected to the cylinder, and the control switch can be compressed by the lower plate to extend the control cylinder.

[0012] Furthermore, a positioning plate extending to the front side of the door body is provided below the main body, a positioning block is fixed to the surface of the positioning plate facing the door body, a positioning groove is provided on the door body, and when the sealing strip moves above the guide rail groove, the positioning block extends into the positioning groove.

[0013] 3. Beneficial Effects

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, when the door body is closed to the end, the wedge block pushes the give way block to move upward, and the control switch above the give way block touches the lower plate body and is triggered, the cylinder extends and drives the pressure wheel to press on the main body of the blocking piece, and the blocking piece slides along the T-shaped guide rail until the blocking strip moves into the gap between the door body and the forward extension part above the guide rail groove, so that the gap above the guide rail groove can be isolated when the door body is closed, thereby improving the sealing of the door body edge of the heavy-duty radiation-proof door and forming a better radiation-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 It is a structural diagram of the door body;

[0020] Figure 5 It is a schematic diagram of the structure of the give way block;

[0021] Figure 6 It is a structural schematic diagram of the plugging member;

[0022] 1. Door body; 11. Guide rail groove; 12. Positioning groove; 2. Wedge block; 3. Give way block; 301. First inclined surface; 302. Forward extension; 303. Second inclined surface; 304. T-shaped guide rail; 305. Guide rod; 306. End; 4. Blocking piece; 401. Main body; 402. Blocking strip; 403. T-shaped groove; 404. Positioning plate; 405. Positioning block; 5. Pushing piece; 6. Fixing frame; 601. Upper plate body; 602. Connecting rod; 603. Lower plate body; 6031. Guide hole; 7. Compression spring; 8. Pressure wheel; 9. Control switch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] A heavy duty radiation shielding door, see Figure 1-6 , including a door body 1, a guide rail groove 11 is provided on the door body 1, a wedge block 2 is fixed at the end of the guide rail groove 11, and also includes a clearance block 3, a blocking member 4 and a pushing member 5 arranged above the door body 1, a side of the clearance block 3 is provided with a first inclined surface 301 that fits with the inclined surface of the wedge block 2, and the upper end of the clearance block 3 has a forward extension portion 302 extending forward to the outside of the guide rail groove 11, a second inclined surface 303 is provided below the forward extension portion 302, and a T-shaped guide rail 304 is fixed to the lower surface of the second inclined surface 303;

[0025] The blocking member 4 at least includes a main body 401 and a blocking strip 402 connected to the main body 401. The blocking strip 402 is made of radiation-proof material or coated with a radiation-proof coating. The main body 401 has an inclined portion with the same slope as the second inclined surface 303, and a T-shaped slot 403 slidably connected to the T-shaped guide rail 304 is provided on the inclined portion; the T-shaped guide rail 304 slides in the T-shaped slot 403, so that the blocking member 4 can slide relative to the clearance block 3.

[0026] When the door body 1 moves laterally and closes to the rear end, the wedge block 2 pushes the clearance block 3 to move upward, forming a gap between the door body 1 and the front extension 302 for the blocking strip 402 to extend into. At this time, the pushing piece 5 pushes the blocking piece 4, and the T-shaped guide rail 304 and the T-shaped groove 403 slide relative to each other, so that the blocking strip 402 moves toward the top of the guide rail groove 11 until the blocking strip 402 extends into the gap between the door body 1 and the front extension 302, blocking the gap above the guide rail groove 11 of the door body 1, forming better isolation, and having a good radiation protection effect.

[0027] A guide rod 305 is fixedly connected above the clearance block 3, and a fixing frame 6 is arranged above the clearance block 3. The fixing frame 6 includes an upper plate body 601, a lower plate body 603, and a connecting rod 602 fixedly connected between the upper plate body 601 and the lower plate body 603. A guide hole 6031 is provided on the lower plate body 603 to be slidably connected to the guide rod 305. The upper end of the guide rod 305 extends above the guide hole 6031 and is fixedly connected to the end 306. A compression spring 7 is sleeved on the guide rod 305, and the upper and lower ends of the compression spring 7 are respectively fixedly connected to the end 306 and the upper surface of the lower plate body 603. The guide rod 305 slides in the guide hole 6031 to play a guiding role. When the clearance block 3 moves up, the compression spring 7 is compressed and shortened. When the blocking member 4 is not pushed by the pushing member 5, the compression spring 7 drives the clearance block 3 to move down and pushes the blocking strip 402 out of the guide rail groove 11.

[0028] In this embodiment, the pushing member 5 is a cylinder fixedly connected to the lower surface of the upper plate body 601, and the telescopic end of the cylinder faces downward and is fixedly connected to a pressure wheel 8, which abuts against the top of the main body 401. After the clearance block 3 moves upward, the cylinder extends and drives the pressure wheel 8 to press on the top of the main body 401, thereby moving the blocking member 4 toward the guide rail groove 11.

[0029] In addition, a control switch 9 is fixed on the upper surface of the clearance block 3. The control switch 9 is electrically connected to the cylinder. After the clearance block 3 moves up, the control switch 9 moves up accordingly until the control switch 9 touches the lower plate 603. Under the pressure of the lower plate 603, the control switch 9 is closed, the cylinder extends and drives the pressure wheel 8 to press the blocking member 4; when the door body 1 is opened, the control switch 9 controls the cylinder to shorten.

[0030] A positioning plate 404 extending to the front side of the door body 1 is provided below the main body 401, a positioning block 405 is fixed to the surface of the positioning plate 404 facing the door body 1, a positioning groove 12 is provided on the door body 1, and when the sealing strip 402 moves to above the guide rail groove 11, the positioning block 405 extends into the positioning groove 12, thereby stabilizing the sealing member 4.

[0031] When the door body 1 is closed to the end, the wedge block 2 pushes the clearance block 3 to move upward, and the control switch 9 above the clearance block 3 touches the lower plate 603 and is triggered. The cylinder extends and drives the pressure wheel 8 to press on the main body 401 of the blocking member 4. The blocking member 4 slides along the T-shaped guide rail 304 until the blocking strip 402 moves to the gap between the door body 1 and the forward extension part 302 above the guide rail groove 11, so that the gap above the guide rail groove 11 can be isolated when the door body 1 is closed, thereby improving the sealing of the edge of the door body 1 and forming a good radiation protection effect.

[0032] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A heavy-duty radiation protection door, comprising a door body, wherein the door body is provided with a guide rail groove, characterized in that: A wedge block is fixed at the end of the guide rail groove, and also includes a clearance block, a blocking piece and a pushing piece arranged above the door body. The side of the clearance block is provided with a first inclined surface that fits with the inclined surface of the wedge block. The upper end of the clearance block has a forward extension portion extending forward to the outside of the guide rail groove. The blocking piece at least includes a main body and a blocking strip connected to the main body. When the door body moves laterally to close, the wedge block pushes the clearance block to move upward, and the blocking piece is pushed by the pushing piece, so that the blocking strip moves above the guide rail groove and extends into the gap between the door body and the forward extension portion.

2. A heavy-duty radiation protection door according to claim 1, characterized in that: A second inclined plane is arranged below the forward extension, a T-shaped guide rail is fixed to the lower surface of the second inclined plane, the main body has an inclined portion with the same slope as the second inclined plane, and a T-shaped groove is provided on the inclined portion for sliding connection with the T-shaped guide rail.

3. A heavy-duty radiation protection door according to claim 1, characterized in that: A guide rod is fixedly connected above the give way block, and a fixing frame is arranged above the give way block, and the fixing frame includes an upper plate body, a lower plate body and a connecting rod fixedly connected between the upper plate body and the lower plate body, and a guide hole slidably connected to the guide rod is opened on the lower plate body, and the upper end of the guide rod extends above the guide hole and is fixedly connected to an end head, and a compression spring is sleeved on the guide rod, and the upper and lower ends of the compression spring are respectively fixedly connected to the end head and the upper surface of the lower plate body.

4. A heavy-duty radiation protection door according to claim 1, characterized in that: The pushing member is a cylinder fixedly connected to the lower surface of the upper plate body, the telescopic end of the cylinder faces downward and is fixedly connected with a pressure wheel, and the pressure wheel abuts against the upper part of the main body.

5. A heavy-duty radiation protection door according to claim 1, characterized in that: A control switch is fixed on the upper surface of the clearance block, the control switch is electrically connected to the cylinder, and the control switch can be compressed by the lower plate body to extend the control cylinder.

6. A heavy-duty radiation protection door according to claim 1, characterized in that: A positioning plate extending to the front side of the door body is provided below the main body, a positioning block is fixed to the surface of the positioning plate facing the door body, a positioning groove is provided on the door body, and when the sealing strip moves above the guide rail groove, the positioning block extends into the positioning groove.

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