Radioactive filter water filter element filling three-element support

Abstract

The utility model discloses a radioactive filter water filter element filling three-element support which comprises a first filling frame, a second filling frame, a third filling frame and a guide mechanism, and the guide mechanism comprises a top seat, a base, a rotating shaft, an inclined guide plate, a first control assembly, a second control assembly, a third control assembly and a rotating power piece. The first control assembly comprises a first mounting shaft, a first limiting part and a first touch part; the second control assembly comprises a second mounting shaft, a second limiting part and a second touch part; the third control assembly comprises a third mounting shaft, a third limiting part and a third touch part; the rotating power piece comprises a spiral guide pipe, an elastic piece and a connecting piece. The device can be matched with existing corollary equipment of the TES of the nuclear power plant to carry out long-distance automatic three-core filling, operation is easy and convenient, the filling efficiency of the water filter element of the radioactive filter is high, the falling risk of the water filter element of the radioactive filter can be effectively avoided, manual close-range operation is not needed, human input is reduced, and personnel are prevented from being subjected to extra radiation.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a three-core bracket for filling a water filter element of a radioactive filter. Background Art

[0002] Conventional three-to-a-barrel operation involves manually loading the replaced radioactive water filter cartridges one by one into a holder within the barrel. Operators manually grasp the cartridges using a gripper and transfer them to the barrel. Radiation exposure is unavoidable, and to minimize exposure, transfer and loading must be swift. This rapid operation significantly increases the risk of cartridges falling, potentially causing them to fall to the ground and spread contamination. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a three-core bracket for filling a radioactive filter water filter element.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: constructing a three-core bracket for loading a radioactive filter water filter element, comprising a first loading frame, a second loading frame, a third loading frame and a guide mechanism, wherein the first loading frame, the second loading frame and the third loading frame are all cylindrical structures, and the horizontal connecting line of the axes of the first loading frame, the second loading frame and the third loading frame is a triangle;

[0005] The guide mechanism includes a top seat, a base, a rotating shaft, an inclined guide plate, a first control assembly, a second control assembly, a third control assembly and a rotating power part, the top seat is installed in the gap between the tops of the first loading frame, the second loading frame and the third loading frame, the base is installed in the gap between the bottoms of the first loading frame, the second loading frame and the third loading frame, and the top seat and the base are arranged opposite to each other; the upper and lower ends of the rotating shaft are respectively passed through the top seat and the base, and the part of the rotating shaft located above the base is provided with a step portion, and the upper surface of the step portion is provided with a limit block; the inclined guide plate is installed at the upper end of the rotating shaft;

[0006] The first control assembly, the second control assembly, and the third control assembly are mounted on the base. The first control assembly includes a first mounting shaft, a first limiting portion, and a first touch portion. The first limiting portion and the first touch portion are mounted on the first mounting shaft, and the first limiting portion is located on the upper surface of the step portion. An end portion of the first touch portion is located inside the first loading frame. The second control assembly includes a second mounting shaft, a second limiting portion, and a second touch portion. The second limiting portion and the second touch portion are mounted on the second mounting shaft, and the second limiting portion is located on the upper surface of the step portion. An end portion of the second touch portion is located inside the second loading frame. The third control assembly includes a third mounting shaft, a third limiting portion, and a third touch portion. The third limiting portion and the third touch portion are mounted on the third mounting shaft, and the third limiting portion is located on the upper surface of the step portion. An end portion of the third touch portion is located inside the third loading frame.

[0007] The rotating power component is installed on the lower surface of the base, and the rotating power component includes a spiral guide tube, an elastic component and a connecting component. The elastic component is installed in the spiral guide tube, and the first end of the elastic component is fixedly connected to the lower surface of the base and / or the spiral guide tube, and the second end of the elastic component is connected to the lower part of the rotating shaft through the connecting component.

[0008] In some embodiments, the first control component, the second control component, and the third control component are arranged at intervals of 120° along the circumferential direction of the rotation axis.

[0009] In some embodiments, the first control assembly further comprises a first sleeve rotatably mounted on the first mounting shaft, and the first limiting portion and the first actuating portion are mounted on the first sleeve at a predetermined angle.

[0010] The second control assembly further includes a second sleeve rotatably mounted on the second mounting shaft, and the second limiting portion and the second actuating portion are mounted on the second sleeve at a predetermined angle.

[0011] The third control assembly further includes a third shaft sleeve rotatably mounted on the third mounting shaft, and the third limiting portion and the third trigger portion are mounted on the third shaft sleeve at a predetermined angle.

[0012] In some embodiments, the connecting member includes a first connecting rod and a second connecting rod, the first connecting rod is radially connected to the lower portion of the rotating shaft, and the second connecting rod is vertically connected to the first connecting rod and the second end of the elastic member.

[0013] In some embodiments, the first end of the elastic member is fixedly connected to the lower surface of the base and / or the spiral guide tube via a fixing pin.

[0014] In some embodiments, the elastic member comprises a rubber band or a coil spring.

[0015] In some embodiments, the guide mechanism also includes a support plate arranged at the lower part of the first loading frame, the second loading frame and the third loading frame; a through hole is provided on the support plate for the lower part of the rotating shaft to pass through; the spiral guide tube is installed on the lower surface of the support plate.

[0016] In some embodiments, the first loading frame includes a first limiting ring, a first carrying plate, and a plurality of first connecting plates, wherein the first limiting ring is disposed above the first carrying plate, and the first limiting ring and the first carrying plate are connected via the plurality of first connecting plates;

[0017] The second loading frame includes a second limiting ring, a second carrying plate, and a plurality of second connecting plates. The second limiting ring is arranged above the second carrying plate, and the second limiting ring and the second carrying plate are connected via the plurality of second connecting plates.

[0018] The third loading frame includes a third limiting ring, a third carrying plate, and a plurality of third connecting plates. The third limiting ring is arranged above the third carrying plate, and the third limiting ring and the third carrying plate are connected via the plurality of third connecting plates.

[0019] The top seat is installed in the gap between the first limiting ring, the second limiting ring and the third limiting ring;

[0020] The base is installed in the gaps among the first supporting plate, the second supporting plate and the third supporting plate.

[0021] In some embodiments, the first filling frame, the second filling frame, and the third filling frame are all metal parts.

[0022] In some embodiments, the limiting block has a cubic structure.

[0023] The implementation of this utility model has the following beneficial effects: the three-core loading bracket for radioactive filter water cartridges can be used with existing supporting equipment in nuclear power plants' TES systems for remote, automated loading of three cartridges. This allows for easy operation, high loading efficiency, and effectively reduces the risk of dropping radioactive filter cartridges. Furthermore, the loading process eliminates the need for close-range manual operation, reducing manpower and preventing personnel from being exposed to additional radiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0025] Figure 1 This is a schematic structural diagram of a three-core support for loading a radioactive filter water filter element in some embodiments of the present invention;

[0026] Figure 2 yes Figure 1 Detailed view of the three-core bracket for loading the radioactive filter water cartridge;

[0027] Figure 3 It is a schematic structural diagram of the rotating power part in some embodiments of the present utility model. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0029] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0031] See Figures 1 to 3 The present invention shows a three-core support for loading a radioactive filter water filter element, which includes a first loading frame 10, a second loading frame 20, a third loading frame 30 and a guide mechanism 40. The first loading frame 10, the second loading frame 20 and the third loading frame 30 are all cylindrical structures, and the horizontal connecting line of the axes of the first loading frame 10, the second loading frame 20 and the third loading frame 30 is a triangle (such as Figure 1 shown).

[0032] The guide mechanism 40 includes a top seat 41, a base 42, a rotating shaft 43, an inclined guide plate 44, a first control component 45, a second control component 46, a third control component 47 and a rotating power part 48. The top seat 41 is installed in the gap between the tops of the first loading frame 10, the second loading frame 20 and the third loading frame 30, and the base 42 is installed in the gap between the bottoms of the first loading frame 10, the second loading frame 20 and the third loading frame 30, and the top seat 41 and the base 42 are arranged opposite to each other. The top seat 41 and the base 42 can be welded and fixed to the outer peripheral sides opposite to the first loading frame 10, the second loading frame 20 and the third loading frame 30. The upper and lower ends of the rotating shaft 43 are respectively provided on the top seat 41 and the base 42, and the portion of the rotating shaft 43 located above the base 42 is provided with a step portion 431. The upper surface of the step portion 431 is provided with a stop block 432. The stop block 432 is a cubic structure. The inclined guide plate 44 is installed on the upper end of the rotating shaft 43. The size of the inclined guide plate 44 can be gradually reduced from top to bottom, and its shape is as follows: Figure 1 shown.

[0033] The first control assembly 45 , the second control assembly 46 , and the third control assembly 47 are mounted on the base 42 . The first control assembly 45 , the second control assembly 46 , and the third control assembly 47 are arranged at intervals of 120° along the circumferential direction of the rotation shaft 43 .

[0034] like Figure 2As shown, the first control assembly 45 includes a first mounting shaft 451, a first stopper 452, and a first actuator 453. The first stopper 452 and the first actuator 453 are mounted on the first mounting shaft 451, with the first stopper 452 located on the upper surface of the step 431, and the end of the first actuator 453 located inside the first loading frame 10. The first mounting shaft 451 may be mounted on a shaft seat of the base 42. Preferably, the first control assembly 45 also includes a first shaft sleeve 454 rotatably mounted on the first mounting shaft 451. The first stopper 452 and the first actuator 453 are mounted on the first shaft sleeve 454 at a predetermined angle, which may be an acute angle, such as 20° to 45°, or even 30°. When the first actuating portion 453 is not subjected to force, it may be disposed upward, and the first limiting portion 452 is located on the upper surface of the step portion 431 for abutting and limiting the limiting block 432 .

[0035] like Figure 2 As shown, the second control assembly 46 includes a second mounting shaft 461, a second stopper 462, and a second actuator 463. The second stopper 462 and the second actuator 463 are mounted on the second mounting shaft 461, with the second stopper 462 located on the upper surface of the step 431, and the end of the second actuator 463 located inside the second loading frame 20. The second mounting shaft 461 may be mounted on a shaft seat of the base 42. Preferably, the second control assembly 46 also includes a second shaft sleeve 464 rotatably mounted on the second mounting shaft 461. The second stopper 462 and the second actuator 463 are mounted on the second shaft sleeve 464 at a predetermined angle, which may be an acute angle, such as 20° to 45°, or even 30°. When the second actuating portion 463 is subjected to force, it may be disposed upward, and the second limiting portion 462 is located on the upper surface of the step portion 431 for abutting and limiting the limiting block 432 .

[0036] like Figure 2As shown, the third control assembly 47 includes a third mounting shaft 471, a third stopper 472, and a third actuator 473. The third stopper 472 and the third actuator 473 are mounted on the third mounting shaft 471. The third stopper 472 is located on the upper surface of the step 431, and the end of the third actuator 473 is located inside the third loading frame 30. The third mounting shaft 471 can be mounted on a shaft seat of the base 42. The third control assembly 47 also includes a third sleeve 474 rotatably mounted on the third mounting shaft 471. The third stopper 472 and the third actuator 473 are mounted on the third sleeve 474 at a predetermined angle. The predetermined angle can be an acute angle, such as 20° to 45°, or even 30°. When the third actuating portion 473 is subjected to force, it may be disposed upward, and the third limiting portion 472 is located on the upper surface of the step portion 431 for abutting and limiting the limiting block 432 .

[0037] like Figure 3 As shown, the rotating power component 48 is installed on the lower surface of the base 42. The rotating power component 48 includes a spiral guide tube 481, an elastic component 482 and a connecting component 483. The elastic component 482 is installed in the spiral guide tube 481. The first end of the elastic component 482 is fixedly connected to the lower surface of the base 42 and / or the spiral guide tube 481, and the second end of the elastic component 482 is connected to the lower part of the rotating shaft 43 through the connecting component 483.

[0038] Furthermore, the connecting member 483 includes a first connecting rod 4831 and a second connecting rod 4832. The first connecting rod 4831 is radially connected (vertically connected) to the lower part of the rotating shaft 43, and the second connecting rod 4832 is vertically connected to the first connecting rod 4831 and the second end of the elastic member 482. The second connecting rod 4832 is roughly parallel to the base 42 or the support plate 49.

[0039] Furthermore, the first end of the elastic member 482 is fixedly connected to the lower surface of the base 42 and / or the spiral guide tube 481 via a fixing pin 484. The spiral guide tube 481 can be a spiral sleeve with its opening facing downward.

[0040] Preferably, the elastic member 482 comprises a rubber band or a coil spring. For example, the elastic member 482 may be a pre-stretched rubber band as a source of rotational power. Of course, the elastic member 482 may be selected and configured according to actual needs and is not specifically limited here.

[0041] like Figure 3As shown, the guide mechanism 40 further includes a support plate 49 disposed below the first loading frame 10, the second loading frame 20, and the third loading frame 30. The support plate 29 can be a circular plate-shaped structure that can be fixedly connected to the base 42 or considered as part of the base 42. The support plate 49 has a through hole for the lower portion of the rotating shaft 43 to pass through. The spiral guide tube 481 is mounted on the lower surface of the support plate 49.

[0042] like Figure 1 As shown, in some embodiments, the first loading frame 10 includes a first limiting ring 11, a first supporting plate 12 and a plurality of first connecting plates 13. The first limiting ring 11 is located above the first supporting plate 12. The first supporting plate 12 can be a cylindrical structure. The first limiting ring 11 is connected to the first supporting plate 12 through a plurality of the first connecting plates 13.

[0043] The second loading frame 20 includes a second limiting ring 21, a second supporting plate 22 and a plurality of second connecting plates 23. The second limiting ring 21 is arranged above the second supporting plate 22. The second supporting plate 22 can be a cylindrical structure. The second limiting ring 21 and the second supporting plate 22 are connected through a plurality of the second connecting plates 23.

[0044] The third loading frame 30 includes a third limiting ring 31, a third supporting plate 32, and a plurality of third connecting plates 33. The third limiting ring 31 is disposed above the third supporting plate 32. The third supporting plate 32 may be a cylindrical structure. The third limiting ring 31 and the third supporting plate 32 are connected via the plurality of third connecting plates 33. The top seat 41 is installed in the gap between the first limiting ring 11, the second limiting ring 21, and the third limiting ring 31. The base 42 is installed in the gap between the first supporting plate 12, the second supporting plate 22, and the third supporting plate 32.

[0045] In some embodiments, the first loading frame 10, the second loading frame 20, and the third loading frame 30 are all metal components, such as stainless steel. Of course, the top seat 41, the base 42, the rotating shaft 43, the inclined guide plate 44, the first control assembly 45, the second control assembly 46, and the third control assembly 47 may also be metal components, such as stainless steel.

[0046] The application of the radioactive filter water filter element filling three-core bracket is as follows:

[0047] (1) The radioactive filter water filter element and three-core bracket are loaded into an empty metal barrel (approximately 400L) in advance. The empty metal barrel (empty barrel) is opened and transferred to the filter element receiving station on the roller conveyor through the relevant crane of the nuclear power plant and the roller conveyor of the nuclear power plant TES system.

[0048] (2) The radioactive filter water filter element replaced by the nuclear power plant is lowered and transported through the slow descent channel of the TES system of the nuclear power plant.

[0049] (3) After the first radioactive filter water filter element is lowered into the metal barrel, it is guided into one of the loading frames (for example, the first loading frame 10) of the radioactive filter water filter element loading three-core bracket through the inclined guide plate 44 located at the center of the radioactive filter water filter element loading three-core bracket.

[0050] (4) After the radioactive filter water filter element continues to descend to the bottom of the loading frame, the touch part is pressed down by gravity, and the touch part rotates around the installation axis, triggering the limit part to rise and break away from the contact with the limit block 432. For example, after the radioactive filter water filter element continues to descend to the bottom of the first loading frame 10, the radioactive filter water filter element presses down the first touch part 453 by gravity, and the first touch part 453 rotates around the first installation axis 451, triggering the first limit part 452 to rise, so that the first limit part 452 breaks away from the contact with the limit block 432.

[0051] (5) The rotating power member 48 rotates and pulls the inclined guide plate 44 120° counterclockwise through the elastic member 482 (such as a pre-stretched rubber band), and the limit block 432 also rotates 120° along with the rotating shaft 43.

[0052] (6) The second stopper abuts against the stopper block 432, and the inclined guide plate 44 stops rotating. At this time, the top of the inclined guide plate 44 faces the next loading frame (e.g., the second loading frame 20), ready to receive the second radioactive filter water cartridge. For example, the second stopper 462 abuts against the stopper block 432, and the inclined guide plate 44 stops rotating. At this time, the top of the inclined guide plate 44 faces the second loading frame 20, ready to receive the second radioactive filter water cartridge.

[0053] (7) After the first radioactive filter water element falls to the bottom of the filling frame, the filter element gripper automatically loosens and rises through the filter element descending channel.

[0054] (8) Repeat steps (3), (4), (5), (6), and (7) to complete the automatic transfer and loading of the second and third radioactive filter water cartridges.

[0055] (9) After the three radioactive filter water cartridges are filled, the TES system is used to perform the next step of remote treatment of the radioactive filter water cartridges. Cement fixation is then performed.

[0056] As can be understood, this three-core radioactive filter cartridge loading stand can be used in conjunction with existing nuclear power plant TES equipment for remote, automated loading of three cartridges. It is simple to operate, highly efficient, and effectively prevents the risk of dropping radioactive filter cartridges. Furthermore, the loading process eliminates the need for close-up manual operation, reducing manpower and preventing additional radiation exposure.

[0057] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A radioactive filter water filter element filling three-core bracket, characterized in that: The invention comprises a first loading frame (10), a second loading frame (20), a third loading frame (30) and a guide mechanism (40), wherein the first loading frame (10), the second loading frame (20) and the third loading frame (30) are all cylindrical structures, and the horizontal connecting line of the axes of the first loading frame (10), the second loading frame (20) and the third loading frame (30) is triangular; The guide mechanism (40) includes a top seat (41), a base (42), a rotating shaft (43), an inclined guide plate (44), a first control component (45), a second control component (46), a third control component (47) and a rotating power member (48), wherein the top seat (41) is installed in the gap between the tops of the first loading frame (10), the second loading frame (20) and the third loading frame (30), and the base (42) is installed between the first loading frame (10), the second loading frame (20) and the third loading frame (30). The frame (20) and the bottom of the third loading frame (30) are arranged in a gap between the top seat (41) and the base (42); the upper and lower ends of the rotating shaft (43) are respectively passed through the top seat (41) and the base (42), and the portion of the rotating shaft (43) located above the base (42) is provided with a step portion (431), and the upper surface of the step portion (431) is provided with a limit block (432); the inclined guide plate (44) is installed on the upper end of the rotating shaft (43); The first control assembly (45), the second control assembly (46), and the third control assembly (47) are installed on the base (42). The first control assembly (45) includes a first mounting shaft (451), a first limiting portion (452), and a first touch portion (453). The first limiting portion (452) and the first touch portion (453) are installed on the first mounting shaft (451), and the first limiting portion (452) is located on the upper surface of the step portion (431). The end of the first touch portion (453) is located on the inner side of the first loading frame (10). The second control assembly (46) includes a second mounting shaft (461), a second limiting portion (462), and a second touch portion (463). The second limiting portion (462) and the second touch portion (463) are mounted on the second mounting shaft (461), and the second limiting portion (462) is located on the upper surface of the step portion (431), and the end of the second touch portion (463) is located on the inner side of the second loading frame (20); the third control component (47) includes a third mounting shaft (471), a third limiting portion (472), and a third touch portion (473), the third limiting portion (472) and the third touch portion (473) are mounted on the third mounting shaft (471), and the third limiting portion (472) is located on the upper surface of the step portion (431), and the end of the third touch portion (473) is located on the inner side of the third loading frame (30); The rotating power member (48) is installed on the lower surface of the base (42), and the rotating power member (48) includes a spiral guide tube (481), an elastic member (482) and a connecting member (483). The elastic member (482) is installed in the spiral guide tube (481), and the first end of the elastic member (482) is fixedly connected to the lower surface of the base (42) and / or the spiral guide tube (481). The second end of the elastic member (482) is connected to the lower part of the rotating shaft (43) through the connecting member (483).

2. The three-core support for loading radioactive filter water cartridge according to claim 1, characterized in that: The first control component (45), the second control component (46) and the third control component (47) are arranged at intervals of 120° along the circumferential direction of the rotating shaft (43).

3. The three-core support for loading radioactive filter water cartridge according to claim 1, characterized in that: The first control assembly (45) further includes a first shaft sleeve (454) rotatably mounted on the first mounting shaft (451), and the first limiting portion (452) and the first touch portion (453) are mounted on the first shaft sleeve (454) at a predetermined angle. The second control assembly (46) further includes a second shaft sleeve (464) rotatably mounted on the second mounting shaft (461), and the second limiting portion (462) and the second touch portion (463) are mounted on the second shaft sleeve (464) at a predetermined angle. The third control assembly (47) further comprises a third shaft sleeve (474) rotatably mounted on the third mounting shaft (471), and the third limiting portion (472) and the third touch portion (473) are mounted on the third shaft sleeve (474) at a predetermined angle.

4. The three-core support for loading radioactive filter water cartridge according to claim 1, characterized in that: The connecting member (483) includes a first connecting rod (4831) and a second connecting rod (4832), wherein the first connecting rod (4831) is radially connected to the lower part of the rotating shaft (43), and the second connecting rod (4832) is vertically connected to the first connecting rod (4831) and the second end of the elastic member (482).

5. The three-core support for loading radioactive filter water cartridge according to claim 1, characterized in that: The first end of the elastic member (482) is fixedly connected to the lower surface of the base (42) and / or the spiral guide tube (481) via a fixing pin (484).

6. The three-core support for loading radioactive filter water cartridges according to claim 1, characterized in that: The elastic member (482) includes a rubber band or a coil spring.

7. The three-core support for loading radioactive filter water cartridge according to claim 1, characterized in that: The guide mechanism (40) further comprises a support plate (49) provided at the lower portion of the first loading frame (10), the second loading frame (20) and the third loading frame (30); a through hole is provided on the support plate (49) for the lower portion of the rotating shaft (43) to pass therethrough; and the spiral guide tube (481) is mounted on the lower surface of the support plate (49).

8. The three-core support for loading a radioactive filter water cartridge according to any one of claims 1 to 7, characterized in that: The first loading frame (10) comprises a first limiting ring (11), a first carrying plate (12) and a plurality of first connecting plates (13); the first limiting ring (11) is arranged above the first carrying plate (12); the first limiting ring (11) and the first carrying plate (12) are connected via the plurality of first connecting plates (13); The second loading frame (20) comprises a second limiting ring (21), a second carrying plate (22) and a plurality of second connecting plates (23); the second limiting ring (21) is arranged above the second carrying plate (22); the second limiting ring (21) and the second carrying plate (22) are connected via the plurality of second connecting plates (23); The third loading frame (30) comprises a third limiting ring (31), a third bearing plate (32) and a plurality of third connecting plates (33); the third limiting ring (31) is arranged above the third bearing plate (32); the third limiting ring (31) and the third bearing plate (32) are connected via the plurality of third connecting plates (33); The top seat (41) is installed in the gap between the first limiting ring (11), the second limiting ring (21) and the third limiting ring (31); The base (42) is installed in the gap between the first supporting plate (12), the second supporting plate (22) and the third supporting plate (32).

9. The three-core support for loading radioactive filter water cartridges according to claim 1, characterized in that: The first filling frame (10), the second filling frame (20), and the third filling frame (30) are all metal parts.

10. The three-core support for loading a radioactive filter water cartridge according to any one of claims 1 to 7, characterized in that: The limiting block (432) has a cubic structure.

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