Sliding door shielding structure of blood irradiator

Abstract

A blood irradiator sliding door shielding structure comprises a shielding box (2) and a shielding door (1), characterized in that: a box retaining edge (21) is protruding upwards on one side edge of the upper opening of the shielding box (2); the shielding door (1) can slide and translate relative to the shielding box (2) in a horizontal direction to open or close; the shielding door (1) comprises a door body (11), and the upper edge of the half circumference of the door body (11) extends out of the door sealing edge (12); the other half circumference of the door body (11) is protruding downwards on a door retaining edge (13), and a box sealing edge (22) extends from the outer side surface of the shielding box (1); an annular mating surface (23) is provided on the inner side of the upper opening of the shielding box (2); thereby, each contact point between the shielding door (1) and the shielding box (2) in the vertical section forms a Z-shaped joint surface structure; and the contact point between the shielding door (1) and the shielding box (2) in the transverse section also forms a Z-shaped joint surface structure.

Description

Technical Field

[0001] The invention relates to medical equipment, in particular to a sliding door type shielding structure of a blood irradiator. Background Art

[0002] In clinical treatment, blood transfusion is a very necessary and important means, but it may also cause transfusion-related complications. Among them, graft-versus-host disease is a serious adverse reaction of blood transfusion. There is currently no specific treatment. An effective way to prevent this serious adverse reaction is to irradiate the blood.

[0003] As a medical device for irradiating blood, the blood irradiator works on the principle of using high-energy gamma rays or X-rays to inactivate T lymphocytes with immune activity in the blood, but has little effect on the functions of red blood cells and platelets and the activity of coagulation factors. Its structure is shown in the technical solution disclosed in the patent document with publication number CN106620910A, which specifically includes a bracket, an industrial computer, a control panel, a high-voltage generator, a ray generator, a shielding shell for enclosing an irradiation chamber, a loading tray rotatably placed in the irradiation chamber, and a rotary drive for driving the loading tray to rotate; during operation, the ray generator emits high-energy rays to the irradiation chamber through a ray passing hole provided on the shielding shell to irradiate the blood in the blood bag placed on the loading tray, thereby achieving the purpose of inactivating T lymphocytes.

[0004] Since the high-energy rays used for irradiation are extremely harmful to the human body, the blood irradiator needs to shield the internal high-energy rays to prevent X-ray leakage from causing harm to the operator, so the shielding door is a very important part that directly affects the shielding effect. Usually, the shielding door and the shielding shell of the blood irradiator contain a certain thickness of lead layer. When the X-rays pass through the lead layer, they will gradually attenuate and finally reach a safe radiation intensity. In addition to this part of the rays, another part of the rays will radiate to the outside along the gap between the shielding door and the shielding shell. Although X-rays propagate in a straight line, since X-rays will be partially reflected when irradiating an object, these reflected rays, after multiple reflections, will radiate to the outside along the channel between the shielding door and the shielding shell. However, as long as the number of reflections is sufficient, these stray radiations will gradually attenuate and reach a safe radiation intensity range.

[0005] Usually, the shielding door of the blood irradiator is a manual swing door, that is, the shielding door is connected to the instrument body by a hinge, and the shielding door rotates around the hinge axis. The shielding between the shielding door and the shielding shell is made in the form of grooves and protrusions. When the equipment is in the shielding state, the groove and the convex edge fit tightly, leaving only a very narrow channel, and the radiation can hardly scatter to the outside through the channel.

[0006] Since the shielding door of the blood irradiator contains a thick lead shielding layer, it is heavy. If the door is opened from bottom to top, it is difficult to operate it only by manpower. Even with the help of power-assisting mechanisms such as motors and cylinders, there are still problems such as occupying space and being difficult to manually reset when power is off.

[0007] People may think of making the shielding door move horizontally, but due to the interference problem during translation, it is impossible to directly use the shielding structure with grooves and protrusions. The radiation can easily pass through the gap between the shielding door and the shielding shell to reach the outside, and it is difficult to ensure the shielding effect. Therefore, how to design a set of sliding door structures with sufficient shielding effect is an important research direction of blood irradiator. Summary of the invention

[0008] The invention provides a sliding door type shielding structure of a blood irradiator, which can effectively prevent leakage of high-energy rays.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] A blood irradiator sliding door shielding structure comprises a shielding box and a shielding door, wherein the shielding box is an upper open box, and a box rib protrudes upward from the edge of the upper opening, and the box rib matches the shape of the upper opening and surrounds half of the upper opening;

[0011] The shielding door is sealed on the upper opening of the shielding box, and the shielding door can slide and translate in the horizontal direction relative to the shielding box to open or close;

[0012] The shielding door comprises a plate-shaped door body matching the shape of the upper opening, wherein a half circumference of one side of the door body is matched with the inner surface of the box retaining edge when the shielding door is closed, and the upper edge of the half circumference of the door body corresponds to the top surface of the box retaining edge and extends to the door sealing edge, and the door sealing edge is matched with the top surface of the box retaining edge; a door retaining edge is convexly provided downwardly on the other half circumference of the door body, and the door retaining edge matches the shape of the shielding box body and surrounds half of the shielding box body, and the door retaining edge is matched with the outer side surface of the shielding box body when the shielding door is closed, and a box sealing edge is extended from the outer surface of the shielding box body corresponding to the bottom end surface of the door retaining edge, and the box sealing edge is matched with the bottom end surface of the door retaining edge; and a circle of annular matching surface matching with the bottom surface edge of the door body is provided on the inner side of the upper opening of the shielding box body, and the annular matching surface matches with the bottom surface edge of the door body when the shielding door is closed; thereby, each contact point between the shielding door and the shielding box body in the vertical section constitutes a Z-shaped joint surface structure;

[0013] The two ends of the door stop edge correspond to the end of the box stop edge, which is folded outward to form a flange, and the edge of the flange extends to the side of the box stop edge to form a rim. When the shielding door is closed, the end of the box stop edge is embedded in the inner side of the rim to cooperate; in this way, the contact between the shielding door and the shielding box body in the transverse section also forms a Z-shaped joint surface structure.

[0014] In the above scheme, the top surface, circumferential surface and bottom edge of the door body are lined with a lead layer, the box walls of the shielding box are lined with a lead layer, and the door stopper, door sealing edge, box stopper, box sealing edge and annular mating surface are also lined with a lead layer.

[0015] In the above scheme, the shielding door comprises a shielding door outer shell, a shielding door lead layer and a shielding door reflective layer, the shielding door lead layer is fixedly lined inside the shielding door outer shell, and the shielding door reflective layer is placed inside the door body. Specifically, the shielding door lead layer comprises a shielding door lead layer body and a door bottom lead layer ring corresponding to the position of the peripheral edge of the bottom surface of the door body; the shielding door outer shell comprises a shielding door outer shell body and a door ring-shaped cover corresponding to the position of the peripheral edge of the bottom surface of the door body; the shielding door reflective layer is a circular plate-shaped body, which is placed in the middle position of the door body and is fixedly connected to the shielding door outer shell through the shielding door lead layer body through the fastener, and the door bottom lead layer ring and the door ring-shaped cover are sequentially stacked and fixedly arranged at the peripheral edge of the bottom surface of the shielding door reflective layer.

[0016] In the above scheme, the shielding box includes a shielding box shell, a shielding box lead layer and a shielding box reflective layer. The shielding box lead layer is fixedly lined on the inner side of the shielding box shell, and the shielding box reflective layer is lined 12 inside the shielding box lead layer.

[0017] Specifically, the shielding box lead layer includes a shielding box lead layer main body, a box edge sealing lead layer half ring corresponding to the box edge sealing, and an open lead layer ring corresponding to the annular mating surface; the shielding box shell includes a shielding box shell main body and a box ring-shaped cover corresponding to the annular mating surface; the shielding box reflective layer and the shielding box lead layer main body are sequentially embedded in the shielding box shell main body, the box edge sealing lead layer half ring is fixedly placed at the position corresponding to the box edge sealing of the shielding box shell main body, and the open lead layer ring and the box ring-shaped cover are sequentially fixedly stacked on the top of the shielding box reflective layer.

[0018] The above scheme further includes a frame, the shielding box is fixedly mounted on the frame, and the frame is provided with a guide rail in the horizontal direction, and the shielding door is slidably connected to the frame through the guide rail. It is further preferred that the scheme further includes a motor assembly, which drives the shielding door to move along the guide rail, that is, drives the shielding door to open and close in an electric manner.

[0019] In the above solution, a door stop mating edge is folded outwardly on the bottom end surface of the door stop edge, and the door stop mating edge is mating with the box sealing edge.

[0020] In the above solution, a box stop mating edge is also folded outwardly on the top end surface of the box stop edge, and the box stop mating edge is mating with the door sealing edge.

[0021] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0022] The present invention designs a unique sliding shielding door structure, in which each contact point between the shielding door and the shielding box in the vertical section forms a Z-shaped joint surface structure, and the contact point between the shielding door and the shielding box in the transverse section also forms a Z-shaped joint surface structure, which effectively ensures the shielding effect and prevents the leakage of high-energy rays, and makes the opening and closing of the shielding door easier and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall three-dimensional schematic diagram of the embodiment of the present invention Figure 1 , the figure shows the shield door closed state;

[0024] Figure 2 The overall three-dimensional schematic diagram of the embodiment of the present invention Figure 2 , the figure shows the shield door is open;

[0025] Figure 3 This is a schematic diagram of the exploded view of the shielding box according to an embodiment of the present invention;

[0026] Figure 4 It is a front view full cross-sectional schematic diagram of a shielding box according to an embodiment of the present invention;

[0027] Figure 5 for Figure 4 XX cross-sectional view;

[0028] Figure 6 This is a schematic diagram of an exploded view of a shielding door according to an embodiment of the present invention;

[0029] Figure 7 It is a front view full cross-sectional schematic diagram of the screen door according to an embodiment of the present invention;

[0030] Figure 8 It is a bottom-up full-section schematic diagram of a screen door according to an embodiment of the present invention;

[0031] Fig. 9 It is a front view full cross-sectional schematic diagram of the main body (shielding door and shielding box) of the embodiment of the present invention;

[0032] Fig.10 for Fig. 9 MM cross-sectional diagram.

[0033] In the above figure: 1, screen door; 11, door body; 12, door sealing edge; 13, door stop edge; 14, flanging; 15, hemming; 16, door stop mating edge;

[0034] 1a, shielding door shell; 1a1, shielding door shell body; 1a2, door ring cover;

[0035] 1b, shielding door lead layer; 1b1, shielding door lead layer body; 1b2, door bottom lead layer ring;

[0036] 1c. Shielding door reflective layer;

[0037] 1d, the first shielding door inner decorative shell;

[0038] 1e, the second shielding door inner decorative shell;

[0039] 2. Shielding box body; 21. Box retaining edge; 22. Box sealing edge; 23. Annular mating surface; 24. Box retaining mating edge; 25. Mating part;

[0040] 2a, shielding box shell; 2a1, shielding box shell body; 2a2, box ring cover;

[0041] 2b, shielding box lead layer; 2b1, shielding box lead layer body; 2b2, box edge sealing lead layer half ring; 2b3, open lead layer ring;

[0042] 2c. Shielding box reflective layer;

[0043] 2d, decorative shell inside the shielding box;

[0044] 3. Rack;

[0045] 4. Guide rails;

[0046] 5. Motor assembly.

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0048] Example: See Figure 1-10 As shown:

[0049] A blood irradiator sliding door type shielding structure comprises a shielding box 2, a shielding door 1, a bracket 3, a guide rail 4 and a motor component 5.

[0050] The shielding box 2 is fixed on the bracket 3. It is a cylindrical box with an upper opening. A box rib 21 which is semi-circular in shape when viewed from above is protruded upward from one side edge of the upper opening. The box rib 21 is cocentric with the upper opening and surrounds half of the upper opening.

[0051] The shielding door 1 is sealed on the upper opening of the shielding box 2, and the shielding door 1 is connected to the bracket 3 by sliding in the horizontal direction through a guide rail, so that it can slide and translate in the horizontal direction relative to the shielding box 2 to open or close, and the shielding door 1 can also be driven by a motor assembly 5 to realize electric opening and closing.

[0052] The shielding door 1 comprises a door body 11 in the shape of a circular plate that matches the shape of the upper opening. When the shielding door is closed, one half of the door body 11 is matched with the box retaining edge 21, and the upper edge of the half of the door body 11 extends out of the door sealing edge 12 corresponding to the top surface of the box retaining edge 21, and the door sealing edge 12 is matched with the top surface of the box retaining edge 21. The other half of the door body 11 is protruding downwardly with a door retaining edge 13 that is semi-circular when viewed from above. The door retaining edge 13 matches the shape of the shielding box 2 and surrounds half of the shielding box 2. When the shielding door is closed, the door retaining edge 13 is matched with the outer side surface of the shielding box 2, and a box sealing edge 22 is extended from the outer side surface of the shielding box 2 corresponding to the bottom end surface of the door retaining edge 13, and the box sealing edge 22 is matched with the bottom end surface of the door retaining edge 13. In addition, the upper opening of the shielding box 2 is provided with an annular mating surface 23 that is mated with the bottom peripheral edge of the door body 11. The annular mating surface 23 is mated with the bottom edge of the door body 11 when the shielding door is closed. In this way, each contact point between the shielding door 1 and the shielding box 2 in the vertical section forms a Z-shaped joint surface structure, such as Fig. 9 shown.

[0053] Better, such as Figure 7 and Fig. 9 As shown, a door stopper matching edge 16 is folded outwardly on the bottom end surface of the door stopper edge 13 , and the door stopper matching edge 16 is matched with the box sealing edge 22 .

[0054] Better, such as Figure 4 As shown in FIG. 9 , a box retaining mating edge 24 is also folded outwardly on the top end surface of the box retaining edge 21 , and the box retaining mating edge 24 is mated with the door sealing edge 12 .

[0055] The two ends of the door retaining edge 13 correspond to the ends of the box retaining edge 21 and are folded outward to form a flange 14. The edge of the flange 14 further extends to the side of the box retaining edge 21 to form a wrapping edge 15. When the shielding door is closed, the end of the box retaining edge 21 is embedded in the inner side of the wrapping edge 15. In this way, the contact between the shielding door 1 and the shielding box 2 in the transverse section also forms a Z-shaped joint surface structure, such as Fig.10 shown.

[0056] Better, such as Fig.10 As shown, the end of the box retaining edge 21 is provided with a matching fitting portion 25 corresponding to the shape of the cavity inside the edge 15 , so that the fitting portion 25 is embedded in the inner side of the edge 15 .

[0057] The shielding door 1 and the shielding box 2 both have shielding properties. Preferably, the top surface, circumferential surface and bottom peripheral edge of the door body 11 are lined with a lead layer, the box walls of the shielding box 2 are lined with a lead layer, and the door stop 13, door sealing edge 12, box stop 21, box sealing edge 22 and annular mating surface 23 are also lined with a lead layer.

[0058] Specifically, preferably, the shielding door 1 comprises a shielding door outer shell 1a, a shielding door lead layer 1b and a shielding door reflective layer 1c, wherein the shielding door lead layer 1b is fixedly lined inside the shielding door outer shell 1a, and the shielding door reflective layer 1c is placed inside the door body 11. More preferably, the shielding door lead layer 1b comprises a shielding door lead layer body 1b1 and a door bottom lead layer ring 1b2 corresponding to the peripheral edge position of the bottom surface of the door body 11; the shielding door outer shell 1a comprises a shielding door outer shell body 1a1 and a door ring-shaped cover body 1a2 corresponding to the peripheral edge position of the bottom surface of the door body 11; the shielding door reflective layer 1c is a circular plate-shaped body, which is placed in the middle position of the door body 11 and is fixedly connected to the shielding door outer shell 1a through fasteners passing through the shielding door lead layer body 1b1, and the door bottom lead layer ring 1b2 and the door ring-shaped cover body 1a2 are sequentially stacked and fixedly arranged at the peripheral edge of the bottom surface of the shielding door reflective layer 1c.

[0059] For the sake of aesthetics, the shielding door 1 may further include a first shielding door inner decorative shell 1d and a second shielding door inner decorative shell 1e, which cover the inner side of the shielding door 1 to make it more aesthetically pleasing.

[0060] The shielding box comprises a shielding box shell 2a, a shielding box lead layer 2b and a shielding box reflective layer 2c. The shielding box lead layer 2b is fixedly lined on the inner side of the shielding box shell 2a, and the shielding box reflective layer 2c is lined inside the shielding box lead layer 2b. More specifically, the shielding box lead layer 2b includes a shielding box lead layer main body 2b1, a box edge lead layer half ring 2b2 corresponding to the box edge seal, and an open lead layer ring 2b3 corresponding to the annular mating surface; the shielding box shell 2a includes a shielding box shell main body 2a1 and a box ring-shaped cover 2a2 corresponding to the annular mating surface; the shielding box reflective layer 2c and the shielding box lead layer main body 2b1 are sequentially embedded in the shielding box shell main body 2a1, the box edge lead layer half ring 2b2 is fixedly placed at the position of the shielding box shell main body 2a1 corresponding to the box edge seal 22, and the open lead layer ring 2b3 and the box ring-shaped cover 2a2 are sequentially fixedly stacked on the top of the shielding box reflective layer 2c.

[0061] For aesthetic purposes, the shielding box 2 may further include a shielding box inner decorative shell 2d to seal the inner side of the box rib 21 .

[0062] The shielding door 1 of the above embodiment is opened by translation, which is easy and convenient to open, and is more energy-efficient when driven by the motor assembly 5. In addition, since each contact point between the shielding door 1 and the shielding box 2 in the vertical section forms a Z-shaped joint surface structure, the contact point between the shielding door 1 and the shielding box 2 in the transverse section also forms a Z-shaped joint surface structure, which effectively ensures the shielding effect and effectively prevents the leakage of high-energy rays.

[0063] The above embodiment is for example that the shielding box body 2 is cylindrical, that is, the upper opening is a circular opening, which is just a preferred example.

[0064] In practice, it is feasible that the shielding box 2 is square (i.e., cylindrical with a rectangular cross-section), or the upper opening of the shielding box 2 can be rectangular. In this case, as long as the shape of the box retaining edge 21 is changed to a U-shape, and the shape of the door retaining edge 13 is also changed to a U-shape, it is completely feasible to match the outer wall of the shielding box 2.

[0065] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A blood irradiator sliding door shielding structure, comprising a shielding box (2) and a shielding door (1), characterized in that: The shielding box (2) is a box with an upper opening, and a box rib (21) is protruding upward from the edge of the upper opening. The box rib (21) matches the shape of the upper opening and surrounds half of the upper opening. The shielding door (1) is sealed on the upper opening of the shielding box (2), and the shielding door (1) can slide and translate in a horizontal direction relative to the shielding box (2) to open or close; The shielding door (1) comprises a plate-shaped door body (11) matching the shape of the upper opening; one half of the door body (11) is matched with the inner surface of the box retaining edge (21) when the shielding door is closed, and the upper edge of the half of the door body (11) corresponds to the top surface of the box retaining edge (21) and extends to the door sealing edge (12); the door sealing edge (12) is matched with the top surface of the box retaining edge (21); the other half of the door body (11) is provided with a door retaining edge (13) protruding downward; the door retaining edge (13) matches the shape of the shielding box (2) and surrounds half of the shielding box (2). When the shielding door is closed, the door retaining edge (13) is The edge (13) is matched with the outer side surface of the shielding box body (2), and a box sealing edge (22) extends from the outer side surface of the shielding box body (2) corresponding to the bottom end surface of the door stop edge (13), and the box sealing edge (22) is matched with the bottom end surface of the door stop edge (13); and a ring-shaped matching surface (23) is provided on the inner side of the upper opening of the shielding box body (2) to match the bottom edge of the door body (11), and the ring-shaped matching surface (23) is matched with the bottom edge of the door body (11) when the shielding door is closed; thereby, each contact point between the shielding door (1) and the shielding box body (2) in the vertical cross section forms a Z-shaped joint surface structure; The two ends of the door retaining edge (13) correspond to the end of the box retaining edge (21) and are folded outward to form a flange (14), and the edge of the flange (14) further extends to the side of the box retaining edge (21) to form a wrapping edge (15), and when the shielding door is closed, the end of the box retaining edge (21) is embedded in the inner side of the wrapping edge (15); thereby, the contact point between the shielding door (1) and the shielding box body (2) in the transverse cross section also forms a Z-shaped joint surface structure; The top surface, circumferential surface and bottom edge of the door body (11) are lined with a lead layer, the box wall of the shielding box (2) is lined with a lead layer, and the door retaining edge (13), the door sealing edge (12), the box retaining edge (21), the box sealing edge (22) and the annular matching surface (23) are also lined with a lead layer; The blood irradiator sliding door type shielding structure also includes a frame (3), the shielding box (2) is fixedly mounted on the frame (3), and the frame (3) is provided with a guide rail (4) in a horizontal direction, and the shielding door (1) is slidably connected to the frame (3) via the guide rail (4).

2. The sliding door shielding structure of the blood irradiator according to claim 1 is characterized in that: The shielding door (1) comprises a shielding door outer shell (1a), a shielding door lead layer (1b) and a shielding door reflective layer (1c); the shielding door lead layer (1b) is fixedly lined inside the shielding door outer shell (1a), and the shielding door reflective layer (1c) is placed inside the door body (11).

3. The sliding door shielding structure of the blood irradiator according to claim 2 is characterized in that: The shielding door lead layer (1b) comprises a shielding door lead layer body (1b1) and a door bottom lead layer ring (1b2) corresponding to the peripheral edge position of the bottom surface of the door body (11); the shielding door outer shell (1a) comprises a shielding door outer shell body (1a1) and a door ring-shaped cover body (1a2) corresponding to the peripheral edge position of the bottom surface of the door body (11); the shielding door reflective layer (1c) is a circular plate-shaped body, which is placed in the middle position of the door body (11) and is fixedly connected to the shielding door outer shell (1a) through fasteners passing through the shielding door lead layer body (1b1), and the door bottom lead layer ring (1b2) and the door ring-shaped cover body (1a2) are sequentially stacked and fixedly arranged at the peripheral edge of the bottom surface of the shielding door reflective layer (1c).

4. The sliding door shielding structure of the blood irradiator according to claim 1 is characterized in that: The shielding box comprises a shielding box shell (2a), a shielding box lead layer (2b) and a shielding box reflective layer (2c); the shielding box lead layer (2b) is fixedly lined on the inner side of the shielding box shell (2a), and the shielding box reflective layer (2c) is lined inside the shielding box lead layer (2b).

5. The sliding door shielding structure of the blood irradiator according to claim 4 is characterized in that: The shielding box lead layer (2b) comprises a shielding box lead layer main body (2b1), a box edge lead layer half ring (2b2) ​​corresponding to the box edge seal, and an open lead layer ring (2b3) corresponding to the annular mating surface; the shielding box shell (2a) comprises a shielding box shell main body (2a1) and a box annular cover (2a2) corresponding to the annular mating surface; the shielding box reflective layer (2c) and the shielding box lead layer main body (2b1) are sequentially embedded in the shielding box shell main body (2a1), the box edge lead layer half ring (2b2) ​​is fixedly placed at a position of the shielding box shell main body (2a1) corresponding to the box edge seal (22), and the open lead layer ring (2b3) and the box annular cover (2a2) are sequentially fixedly stacked on the top of the shielding box reflective layer (2c).

6. The sliding door shielding structure of the blood irradiator according to claim 1, characterized in that: It also includes a motor assembly (5), which drives the shielding door (1) to move along the guide rail (4).

7. The sliding door shielding structure of the blood irradiator according to claim 1 is characterized in that: A door stop mating edge (16) is folded outwardly on the bottom end surface of the door stop edge (13), and the door stop mating edge (16) is mated with the box sealing edge (22).

8. The sliding door shielding structure of the blood irradiator according to claim 1, characterized in that: A box stop mating edge (24) is also folded outwardly on the top end surface of the box stop edge (21), and the box stop mating edge (24) is mated with the door sealing edge (12).

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