A device for quickly taking out a radioactive liquid bottle from a shielding container

Abstract

The present invention relates to the field of radioactive drug production equipment, and in particular, to a device for quickly removing a radioactive liquid bottle from a shielding container, comprising a shell, a guide rod and a protective device. The shell is provided with a guide hole and a protective cylinder. The guide rod is inserted into the guide hole and is provided with an extraction member. The protective device comprises a rotating rod and a rotating member. The rotating member is connected to the rotating rod through a connecting rod. The rotating rod is arranged in conjunction with the guide rod so that when the guide rod slides into the protective cylinder, the rotating member can rotate and move away from the open end of the protective cylinder, and when the guide rod slides into the guide hole, the rotating member can rotate to the open end of the protective cylinder. After the shell is blocked by the shielding tank, the guide rod enters the shielding tank and extracts the liquid bottle. The guide rod also pushes the rotating member to rotate, thereby locking the liquid bottle in the protective cylinder. It is convenient and safe to take and put.

Description

Technical Field

[0001] The invention relates to the field of radioactive drug production equipment, and in particular to a device for quickly taking out a radioactive liquid bottle from a shielding container. Background Art

[0002] At present, radioactive drugs have been widely used in medicine for the treatment and diagnosis of various diseases, and their annual usage is very huge. In the production process of radioactive drugs, the radioactive raw materials used are basically high specific activity nuclide solutions.

[0003] In order to ensure the safety of radioactive materials during transportation, these radionuclide solutions are usually sealed in controlled antibiotic glass bottles, and then encapsulated in lead shielding tanks. Therefore, during production, it is necessary to first take the liquid bottle containing the radionuclide solution out of the lead shielding tank.

[0004] In order to protect the operator from high-dose radiation during the operation, the operation must be carried out in a shielded sealed hot room. The operator observes the situation in the hot room through the lead glass window on the front of the hot room, opens the lid of the lead shielding tank through the manipulator or glove hole, and then takes out the liquid bottle. However, in the actual operation, there will be the following problems:

[0005] First, the shielding layer of the hot chamber is usually thicker, and the shielding performance of lead glass is lower than that of the hot chamber shielding material, so the thickness of the observation window is usually thicker and its area is usually smaller, so the operator's viewing angle itself will be greatly limited, and the liquid bottle is usually located in the center of the shielding lead tank, which is basically in the operator's blind spot. After the cover of the lead shielding tank is opened, it is also difficult to see the specific situation of the liquid bottle;

[0006] Secondly, the location of the liquid bottle is deep inside the shielding lead tank, and it is difficult to directly grasp it with a robot. It is necessary to install a special clamp on the robot or use a long-arm clamp directly through the glove hole to operate it. However, due to the obstructed line of sight, it still takes multiple attempts to clamp the liquid bottle firmly. Using the glove hole to operate will greatly increase the radiation dose to the operator's hands.

[0007] Third, when operating through a manipulator or a glove hole, due to the lack of protective measures, there is a risk of the liquid bottle falling after being taken out of the lead tank. Once broken, a large amount of radioactive material will leak, with extremely serious consequences.

[0008] The above reasons usually require operators to make multiple attempts to successfully remove the liquid bottle, which is inefficient overall and may also result in high doses of radiation to personnel. Moreover, once the liquid bottle falls and breaks, radioactive substances will leak, which will not only pollute the operating site, but also endanger the safety of the external environment. Summary of the invention

[0009] The first object of the present invention is to provide a device for quickly taking out a bottle of radioactive liquid from a shielding container, which can conveniently take out the radioactive liquid in the shielding tank.

[0010] The embodiment of the present invention is achieved as follows:

[0011] A device for quickly taking out a bottle of radioactive liquid from a shielding container, comprising a shell, a guide rod and a protection device; the shell is provided with a guide hole and a protection tube; the protection tube is provided at one end of the shell, and the guide hole extends from the other end of the shell into the protection tube;

[0012] The guide rod is inserted into the guide hole and can slide along the guide hole; an extraction member for extracting the liquid bottle is provided at one end of the guide rod close to the protective tube;

[0013] The protective device includes a rotating rod and a rotating member; the outer shell is provided with a rotating hole connecting the outside and the guide hole; the rotating rod is inserted into the rotating hole and can rotate in the rotating hole; the rotating member is connected to the rotating rod through a connecting rod so that the rotating member follows the rotating rod to rotate to the opening end of the protective tube; one end of the rotating rod extending to the guide hole is arranged to cooperate with the guide rod, so that when the guide rod slides into the protective tube, the rotating member can rotate and move away from the opening end of the protective tube, and when the guide rod slides into the guide hole, the rotating member can rotate to the opening end of the protective tube.

[0014] Furthermore, the extraction member is a suction cup; an air guide hole is provided inside the guide rod, one end of which is connected to the suction cup; and the other end of the air guide hole extends to the other end of the guide rod.

[0015] Furthermore, a clamping head is provided at one end of the guide rod away from the extractor; and a clamping groove is provided on the outer wall of the clamping head.

[0016] Furthermore, a limiting groove is provided on the hole wall of the guide hole along the extension direction of the guide hole; and a limiting protrusion is provided on the guide rod in cooperation with the limiting groove so that the limiting protrusion is accommodated in the limiting groove and can slide along the limiting groove.

[0017] Furthermore, a torsion rod is provided at one end of the rotating rod extending into the guide hole along the radial direction of the rotating rod; the limiting protrusion is strip-shaped and extends along the axial direction of the guide rod; the limiting protrusion is close to one end of the extraction member and is provided in cooperation with the torsion rod, so that when the limiting protrusion moves into the protective tube, the limiting protrusion causes the torsion rod to deflect.

[0018] Furthermore, the extraction member is provided with a rotating top rod in cooperation with the torsion rod, so that when the extraction member moves into the guide hole, the rotating top rod pushes the torsion rod to deflect; the extraction member is also provided with a stop block; the outer diameter of the extraction member where the stop block is provided is larger than the aperture of the guide hole.

[0019] Furthermore, a roller is provided at one end of the torsion rod away from the rotation rod.

[0020] The beneficial effects of the present invention are:

[0021] When in use, the manipulator in the hot chamber clamps the clamping head and then lifts the device for quickly removing the radioactive liquid bottle from the shielding container of the present invention. The manipulator gradually descends, so that the protective tube abuts the top of the shielding container. The manipulator continues to descend, so that the guide rod continues to descend, and the protective tube abuts the top of the shielding container and stops descending. The guide rod descends relative to the protective tube and gradually descends to the bottom of the shielding container. During the descent of the guide rod relative to the protective tube, the rotating rod rotates and drives the rotating member to rotate away from the open end of the protective tube. The rotating member leaves the open end of the protective tube to avoid being blocked by the rotating member when the guide rod descends. When the extraction member follows the guide rod to descend to abut the radioactive liquid bottle in the shielding tank, the extraction member picks up the radioactive liquid bottle. At this time, the manipulator rises to lift the radioactive liquid bottle. In the early stage of the manipulator rising, the guide rod moves upward relative to the protective tube and gradually lifts the radioactive liquid bottle to the inside of the protective tube. After the radioactive liquid bottle reaches the inside of the protective tube, the guide rod will not be able to continue to rise relative to the protective tube; at the same time, the rotating member rotates to below the opening of the protective tube, thereby sealing the radioactive liquid bottle in the protective tube. At this time, the robot arm can extract the radioactive liquid bottle without causing the radioactive liquid bottle to fall and break.

[0022] After the radioactive liquid bottle is taken out, the manipulator descends to place the radioactive liquid bottle in the hot chamber. During the process of putting down the radioactive liquid bottle, the working process of the device is the same as the working process of picking up the radioactive liquid bottle.

[0023] The device for quickly taking out a radioactive liquid bottle from a shielding container can conveniently take out the radioactive liquid bottle in the shielding tank; at the same time, it can also ensure that the radioactive liquid bottle will not fall out and be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1A cross-sectional view of a device for quickly removing a bottle of radioactive liquid from a shielding container provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a housing according to an embodiment of the present invention;

[0027] Figure 3 is a schematic cross-sectional view of a housing according to an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of a guide rod according to an embodiment of the present invention;

[0029] Figure 5 is a cross-sectional view of a guide rod according to an embodiment of the present invention;

[0030] Figure 6 A top view of a guide rod according to an embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of a rotating member of an embodiment of the present invention when it is located at the opening of the protective tube;

[0032] Figure 8 It is a schematic diagram of a rotating member of an embodiment of the present invention when it is located on the side of the protective tube;

[0033] Fig. 9 Schematic diagram of the cooperation between the rotating rod and the housing according to an embodiment of the present invention.

[0034] icon:

[0035] 1-housing, 11-guide hole, 111-limiting groove, 12-protection tube, 121-top rod, 13-rotation hole, 2-guide rod, 21-extraction member, 211-rotation top rod, 212-stopper, 22-air guide hole, 23-clamping head, 231-clamping groove, 24-limiting protrusion, 3-protection device, 31-rotation rod, 311-torsion rod, 312-roller, 32-rotation member, 33-connecting rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. 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, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example

[0042] Please refer to Figure 1-Figure 9 The present embodiment provides a device for quickly removing a radioactive liquid bottle from a shielding container, comprising a housing 1, a guide rod 2 and a protection device 3. The housing 1 is provided with a guide hole 11 and a protection tube 12. The protection tube 12 is provided at the lower end of the housing 1, and the guide hole 11 extends from the upper end of the housing 1 to the inside of the protection tube 12.

[0043] The guide rod 2 is inserted into the guide hole 11 and can slide along the guide hole 11. In order to prevent the guide rod 2 from rotating in the guide hole 11, the hole wall of the guide hole 11 is provided with a limiting groove 111 along the extension direction of the guide hole 11. The guide rod 2 is provided with a limiting protrusion 24 in cooperation with the limiting groove 111, so that the limiting protrusion 24 is accommodated in the limiting groove 111 and can slide along the limiting groove 111. One end of the guide rod 2 is located in the protective tube 12, and the other end extends to the outside of the upper end of the shell 1. A clamping head 23 is provided at the end of the guide rod extending to the outside of the shell 1, and a clamping groove 231 is provided on the outer wall of the clamping head 23. The manipulator can well clamp the guide rod 2 by clamping the clamping groove 231. The other end of the guide rod 2, that is, the end of the guide rod 2 arranged in the protective tube 12, is provided with an extraction member 21 for extracting the liquid bottle. The extraction member 21 can be a manipulator with a clamping claw or other mechanical structure capable of grabbing the liquid bottle. In this embodiment, the extracting member 21 is a suction cup. Correspondingly, an air guide hole 22 is provided inside the guide rod 2 with one end connected to the suction cup, and the other end of the air guide hole 22 extends to the top of the guide rod 2.

[0044] The protective device 3 includes a rotating rod 31 and a rotating member 32. The housing 1 is provided with a rotating hole 13 connecting the outside thereof and the guide hole 11. The rotating rod 31 is inserted into the rotating hole 13 and can rotate in the rotating hole 13. The rotating member 32 is connected to the rotating rod 31 through a connecting rod 33 so that the rotating member 32 rotates with the rotating rod 31. The length of the connecting rod 33 is set to match the distance from the rotating hole 13 to the open end of the protective tube 12, so that the rotating member 32 can swing around the rotating rod 31 between the open lower end of the protective tube 12 and one side of the protective tube 12. In practice, the rotating member 32 is plate-shaped. When the rotating member 32 rotates to the open lower end of the protective tube 12, the rotating member 32 closes the opening of the protective tube 12.

[0045] One end of the rotating rod 31 extending to the guide hole 11 is arranged in cooperation with the guide rod 2, so that when the guide rod 2 slides into the protective tube 12, the rotating member 32 can rotate and move away from the open end of the protective tube 12, and when the guide rod 2 slides into the guide hole 11, the rotating member 32 can rotate to the open end of the protective tube 12. The end of the rotating rod 31 extending to the guide hole 11 can be arranged close to the guide rod 2, and when the guide rod 2 slides relative to the guide hole 11, the rotating rod 31 can be pushed to rotate by friction, thereby driving the rotating member 32 to swing between the open end of the protective tube 12 and one side of the protective tube 12.

[0046] The device for quickly taking out a radioactive liquid bottle from a shielding container of the present invention is used in conjunction with a hot chamber. A manipulator and gloves are arranged in the hot chamber. An operator can perform production through the manipulator arranged in the hot chamber, or through the gloves arranged in the hot chamber.

[0047] When in use, the shielding tank containing the liquid bottle is placed inside the hot chamber and the lead cover of the shielding tank is removed. The manipulator in the hot chamber clamps the clamping head 23 and then lifts the device for quickly removing the radioactive liquid bottle from the shielding container of the present invention. The manipulator gradually descends so that the protective cylinder 12 abuts the top of the shielding container. The manipulator continues to descend so that the guide rod 2 continues to descend, and the protective cylinder 12 stops descending after abutting the top of the shielding container. The guide rod 2 descends relative to the protective cylinder 12 and gradually descends to the bottom of the shielding container. During the descent of the guide rod 2 relative to the protective cylinder 12, the rotating rod 31 rotates and drives the rotating member 32 to rotate away from the open end of the protective cylinder 12. The rotating member 32 leaves the open end of the protective cylinder 12 to avoid the guide rod 2 being blocked by the rotating member 32 when it descends. When the extraction member 21 follows the guide rod 2 to descend to abut the radioactive liquid bottle in the shielding tank, the extraction member 21 picks up the radioactive liquid bottle. At this time, the manipulator rises to lift the radioactive liquid bottle. At the initial stage of the manipulator's ascent, the guide rod 2 moves upward relative to the protective tube 12 and gradually lifts the radioactive liquid bottle into the protective tube 12. After the radioactive liquid bottle reaches the inside of the protective tube 12, the guide rod 2 will not be able to continue to rise relative to the protective tube 12. At the same time, the rotating member 32 rotates to below the opening of the protective tube 12, thereby sealing the radioactive liquid bottle in the protective tube 12. At this time, the manipulator extracts the radioactive liquid bottle without causing the radioactive liquid bottle to fall and break.

[0048] After the radioactive liquid bottle is taken out, the manipulator descends to place the radioactive liquid bottle in the hot chamber. During the process of putting down the radioactive liquid bottle, the working process of the device is the same as the working process of picking up the radioactive liquid bottle.

[0049] The device for quickly taking out a radioactive liquid bottle from a shielding container can conveniently take out the radioactive liquid bottle in the shielding tank, and at the same time, can ensure that the radioactive liquid bottle will not fall out and be damaged.

[0050] In order to facilitate the removal of the lead cover of the shielding tank, a lifting device is also provided inside the hot chamber. The lifting device includes a winch and a hook. The hook is connected to the lifting rope of the winch. When in use, the hook is hooked to the lug of the lead cover by a manipulator, and the lead cover can be lifted up and separated from the shielding tank when the winch is raised. The lead cover can be placed on the shielding tank when the winch is lowered. In order to ensure that the rotating part 32 can swing after the protective tube 12 abuts against the top of the shielding tank, a push rod 121 is connected to the lower end of the protective tube 12. The push rod 121 abuts against the top of the shielding tank to prevent the protective tube 12 from continuing to approach the shielding tank. At this time, the gap between the protective tube 12 and the top of the shielding tank can ensure that the rotating part 32 can swing back and forth from the open end of the protective tube 12 to the side of the protective tube 12.

[0051] In this embodiment, a torsion rod 311 is provided at one end of the rotating rod 31 extending into the guide hole 11 along the radial direction of the rotating rod 31. The rotating rod 31 and the torsion rod 311 are combined to form an "L" shape. The limiting protrusion 24 is strip-shaped and extends along the axial direction of the guide rod 2. One end of the limiting protrusion 24 close to the extraction member 21 is provided in cooperation with the torsion rod 311, so that when the limiting protrusion 24 moves into the protective tube 12, the end of the limiting protrusion 24 pushes the torsion rod 311 and thus deflects the torsion rod 311. When the end of the torsion rod 311 deflects to one side of the limiting protrusion 24, one end of the torsion rod 311 slides relative to the side of the limiting protrusion 24 without being deflected by the push of the limiting protrusion 24. This makes it possible that when the guide rod 2 extends into the interior of the protective tube 12, the limiting protrusion 24 first pushes the torsion rod 311 to deflect, and then the rotating member 32 swings from the open end of the protective tube 12 to the side of the protective tube 12, and then opens the opening of the protective tube 12, making it convenient for the liquid bottle to enter the protective tube 12. After the rotating member 32 swings from the open end of the protective tube 12 to the side of the protective tube 12, one end of the torsion rod 311 slides relative to the side of the limiting protrusion 24 and does not deflect under the push of the limiting protrusion 24. This makes the rotating member 32 continue to remain on the side of the protective tube 12.

[0052] On the contrary, when the guide rod 2 is lifted, one end of the torsion rod 311 first slides relative to the side of the limiting protrusion 24 and will not deflect under the push of the limiting protrusion 24. When the end of the limiting protrusion 24 moves past the torsion rod 311, the torsion rod 311 is no longer subjected to the force of the limiting protrusion 24, and the rotating member 32 swings around the rotating rod 31 to the lower end of the opening of the protective tube 12 under the action of gravity, thereby closing the opening of the protective tube 12. In order to reduce the friction between the torsion rod 311 and the limiting protrusion 24, a roller 312 is provided at one end of the torsion rod 311 away from the rotating rod 31. At the same time, in order for the limiting protrusion 24 to better push the torsion rod 311 so that the end of the torsion rod 311 deflects to the side wall of the limiting protrusion 24, the end of the limiting protrusion 24 is arranged to be inclined in coordination with the torsion rod 311.

[0053] In this embodiment, the extraction member 21 is provided with a rotating top rod 211 in cooperation with the torsion rod 311, so that when the extraction member 21 moves into the guide hole 11, the rotating top rod 211 pushes the torsion rod 311 to deflect. The extraction member 21 is also provided with a stopper 212. The outer diameter of the stopper 212 of the extraction member 21 is larger than the aperture of the guide hole 11. The rotating top rod 211 is arranged below the torsion rod 311. During the rising process of the guide rod 2 along the guide hole 11, the rotating top rod 211 pushes the torsion rod 311 to rotate, thereby causing the rotating member 32 to rotate to the lower end of the opening of the protective tube 12, thereby closing the opening of the protective tube 12. During the rising process of the guide rod 2 along the guide hole 11, the stopper 212 can also limit the stroke of the guide rod 2 to prevent the guide rod 2 from detaching from the guide hole 11.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for quickly removing a bottle of radioactive liquid from a shielding container, characterized in that: The invention comprises a housing (1), a guide rod (2) and a protective device (3); the housing (1) is provided with a guide hole (11) and a protective tube (12); the protective tube (12) is arranged at one end of the housing (1), and the guide hole (11) extends from the other end of the housing (1) to the inside of the protective tube (12); The guide rod (2) is inserted into the guide hole (11) and can slide along the guide hole (11); an extraction member (21) for extracting a liquid bottle is provided at one end of the guide rod (2) close to the protective tube (12); the extraction member (21) is a suction cup; an air guide hole (22) is provided inside the guide rod (2) and one end of the air guide hole (22) is connected to the suction cup; the other end of the air guide hole (22) extends to the other end of the guide rod (2); The protective device (3) comprises a rotating rod (31) and a rotating member (32); the housing (1) is provided with a rotating hole (13) communicating with the outside and the guide hole (11); the rotating rod (31) is inserted into the rotating hole (13) and can rotate in the rotating hole (13); the rotating member (32) is connected to the rotating rod (31) through a connecting rod (33) so that the rotating member (32) follows the rotating rod (31) and rotates to the open end of the protective tube (12); one end of the rotating rod (31) extending to the guide hole (11) is arranged to cooperate with the guide rod (2) so that when the guide rod (2) slides into the protective tube (12), the rotating member (32) can rotate and move away from the open end of the protective tube (12); when the guide rod (2) slides into the guide hole (11), the rotating member (32) can rotate to the open end of the protective tube (12); The hole wall of the guide hole (11) is provided with a limiting groove (111) along the extension direction of the guide hole (11); the guide rod (2) is provided with a limiting protrusion (24) in cooperation with the limiting groove (111), so that the limiting protrusion (24) is accommodated in the limiting groove (111) and can slide along the limiting groove (111); one end of the rotating rod (31) extending into the guide hole (11) is provided with a torsion rod (311) along the radial direction of the rotating rod (31); the limiting protrusion (24) is strip-shaped and extends along the axial direction of the guide rod (2); one end of the limiting protrusion (24) close to the extraction member (21) is provided in cooperation with the torsion rod (311), so that when the limiting protrusion (24) moves into the protective tube (12), the limiting protrusion (24) causes the torsion rod (311) to deflect.

2. The device for quickly removing a bottle of radioactive liquid from a shielding container according to claim 1 is characterized in that: A clamping head (23) is provided at one end of the guide rod (2) away from the extraction member (21); and a clamping groove (231) is provided on the outer wall of the clamping head (23).

3. The device for quickly removing a bottle of radioactive liquid from a shielding container according to claim 1 is characterized in that: The extracting member (21) is provided with a rotating top rod (211) in cooperation with the torsion rod (311), so that when the extracting member (21) moves into the guide hole (11), the rotating top rod (211) pushes the torsion rod (311) to deflect; the extracting member (21) is also provided with a stopper (212); the outer diameter of the extracting member (21) where the stopper (212) is provided is greater than the hole diameter of the guide hole (11).

4. The device for quickly removing a bottle of radioactive liquid from a shielding container according to claim 1 is characterized in that: A roller (312) is provided at one end of the torsion rod (311) away from the rotation rod (31).

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