Associated radioactive waste residue activity rapid identification device

Abstract

The invention provides an associated radioactive waste residue activity rapid identification device, and belongs to the technical field of radionuclide detection.The associated radioactive waste residue activity rapid identification device comprises two sets of fixing frames which are arranged oppositely, and translation frames are slidably connected to the fixing frames; a translation assembly for driving the translation frame to slide horizontally is arranged on the fixed frame; a supporting frame is arranged on the translation frame, a lifting block is connected to the supporting frame in a sliding mode, and a lifting mechanism used for driving the lifting block to ascend and descend is arranged between the translation frame and the supporting frame; the lifting block is provided with nuclear radiation detectors used for detecting nuclide activity, and the two nuclear radiation detectors are arranged oppositely. According to the invention, multi-point detection of horizontal and vertical position adjustment of a single nuclear radiation detector is realized, the device is suitable for steel boxes of various sizes, the occupied space of multiple sets of detection devices is reduced, and the cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of radionuclide detection, and more specifically, relates to a device for quickly identifying the activity of associated radioactive waste residues. Background Art

[0002] In the practice of nuclear fuel manufacturing, nuclear power operation, nuclear waste treatment, nuclear facility decommissioning and other activities, a large amount of solid radioactive waste is continuously generated and accumulated. These radioactive solid wastes are packaged, temporarily stored and transported in steel boxes, which are generally transported by vehicles. Radioactive waste residues contain a variety of natural radioactive substances, and it is necessary to conduct radionuclide activity detection at multiple points on both sides of the steel boxes.

[0003] The existing device for detecting the activity of radionuclides on steel boxes on vehicles includes two sets of detection racks arranged opposite to each other, and multiple sets of nuclear radiation detectors arranged opposite to each other are arranged at different points on the two sets of detection racks. The nuclear radiation detection is stopped when the vehicle drives between the two sets of detection racks; and at least two sets of detection devices of different sizes are equipped according to the sizes of the vehicle and the steel box, so as to detect large steel boxes and small steel boxes respectively. However, the two sets of detection devices not only increase the occupied space, but also use double the number of nuclear radiation detectors, which makes the cost higher. Summary of the invention

[0004] The purpose of the present invention is to provide a device for quickly identifying the activity of associated radioactive waste residues, so as to solve the technical problem in the prior art that two sets of detection devices not only increase the occupied space, but also use double the number of nuclear radiation detectors, resulting in higher costs.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a rapid identification device for the activity of associated radioactive waste residues, comprising two sets of fixed frames arranged opposite to each other, the fixed frames are slidably connected with translation frames, and the fixed frames are provided with translation components for driving the translation frames to slide horizontally; the translation frames are provided with support frames, and the support frames are slidably connected with lifting blocks, and a lifting mechanism for driving the lifting blocks to be lifted and lowered is provided between the translation frames and the support frames; the lifting blocks are provided with nuclear radiation detectors for detecting the activity of nuclides, and the two nuclear radiation detectors are arranged opposite to each other. In combination with the above technical solution, in a possible implementation, the translation assembly includes a translation screw, a translation guide rail and a translation motor. The translation screw is horizontally rotatably connected to the bottom of the fixed frame, the translation guide rail is fixed to the bottom of the fixed frame and is parallel to the translation screw, the translation motor is arranged at the bottom of the fixed frame, the translation motor output shaft is coaxially fixed with the translation screw, the translation frame is threadedly connected to the translation screw, and the translation frame is slidably connected to the translation guide rail.

[0006] In combination with the above technical solution, in a possible implementation, the lifting mechanism includes a lifting screw, a lifting guide rail and a lifting motor. The lifting screw is vertically rotatably connected between the top of the support frame and the translation frame, the lifting guide rail is vertically fixed on the translation frame, the lifting motor is arranged on the translation frame, the lifting motor output shaft is coaxially fixed with the lifting screw, the lifting block is threadedly connected to the lifting screw, and the lifting block is slidably connected to the lifting guide rail.

[0007] In combination with the above technical solution, in a possible implementation method, the lifting screw includes an outer screw and an inner screw, the lifting block is threadedly connected to the outer screw, the outer screw and the lifting block are self-locking threads, the top of the outer screw is rotatably connected to the top of the support frame, and the support frame is a vertically retractable structure; the bottom of the inner screw is coaxially fixed to the output shaft of the lifting motor, and the inner screw is coaxially threadedly connected to the inside of the outer screw; an automatic connecting mechanism for relatively fixing the outer screw and the inner screw is provided between the bottom of the outer screw and the inner screw, the automatic connecting mechanism is used to release the fixation between the outer screw and the inner screw when the lifting block rises to the top of the outer screw, and to relatively fix the outer screw and the inner screw again after the outer screw descends and resets.

[0008] In combination with the above technical solution, in a possible implementation manner, the thread friction force between the outer screw and the inner screw is smaller than the thread friction force between the outer screw and the lifting block.

[0009] In combination with the above technical solution, in a possible implementation, a force spring facing the lifting block is fixed on the downward surface of the top of the support frame, and when the automatic connecting mechanism releases the fixation between the outer screw and the inner screw, the force spring is in a compressed state.

[0010] In combination with the above technical scheme, in a possible implementation method, the automatic connecting mechanism includes a top block, a connecting spring, a connecting column, a reset assembly, a pull rope, a wire take-up wheel and a linkage assembly; a cavity is opened inside the position of the inner screw near the translation frame, the top block slides vertically in the cavity, the connecting spring is arranged in the cavity and is connected to the top block; a fixing groove extending to the outer screw is opened at a position below the top block on the inner side wall of the cavity, and the connecting column is slidably connected between the cavity and the fixing groove; when the outer screw and the inner screw are relatively fixed, the connecting column is simultaneously located in the fixing grooves of the outer screw and the inner screw; the reset assembly is arranged in the fixing groove of the outer screw and is used to drive the connecting column to reset until one end is located in the cavity and the other end is located in the fixing groove of the inner screw, and the end portions of the bottom end of the top block that contact and extrude the connecting column are both hemispherical; The take-up wheel is rotatably connected to the top of the support frame, and a connecting hole coaxial with the inner screw is provided on the top wall of the cavity. One end of the pull rope is located in the cavity and fixed to the top block, and the other end of the pull rope is fixed to the take-up wheel after passing through the connecting hole; the linkage assembly is arranged between the lifting block and the take-up wheel, and when the lifting block rises to near the top of the outer screw, the linkage assembly drives the take-up wheel to rotate.

[0011] In combination with the above technical solution, in a possible implementation, the reset assembly includes a reset spring and a push plate, the push plate is slidably connected in the fixed groove of the outer screw, the reset spring is arranged in the fixed groove of the outer screw and is connected to the push plate, and the push plate is located on the side of the reset spring close to the cavity; when the reset spring is in a natural state, the push plate is coplanar with the side facing the cavity at the junction of the fixed grooves in the outer screw and the inner screw.

[0012] In combination with the above technical solution, in a possible implementation method, the linkage assembly includes a linkage gear, a linkage rack and a self-locking drive component. The linkage gear is coaxially fixed on the rotating shaft of the take-up wheel, the linkage rack is vertically slidably connected to the lifting block and is used to engage with the linkage gear, and the self-locking drive component is arranged on the lifting block and is used to drive the linkage rack to self-lock in position after sliding.

[0013] In combination with the above technical solution, in a possible implementation, the self-locking drive component includes a self-locking motor and a restoring gear, the self-locking motor is arranged on the lifting block row, the restoring gear is coaxially fixed on the output shaft of the self-locking motor, and the restoring gear is meshed with the linkage rack.

[0014] The beneficial effect of the device for rapid identification of activity of associated radioactive waste provided by the present invention is that, compared with the prior art, the present invention drives the translation frame to slide horizontally through the translation component and drives the lifting block to lift vertically through the lifting mechanism, thereby realizing multi-point detection of horizontal and vertical position adjustment of a single nuclear radiation detector, and is suitable for steel boxes of various sizes, reducing the space occupied by multiple sets of detection devices and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1A top view of a device for rapid identification of activity of associated radioactive waste residues provided by an embodiment of the present invention; Figure 2 A side view of a lifting mechanism provided by an embodiment of the present invention; Figure 3 A partial cross-sectional view of an automatic connection mechanism provided by an embodiment of the present invention; Figure 4 A partial cross-sectional view of a linkage assembly provided in an embodiment of the present invention.

[0017] Among them, the reference numerals in the figures are as follows: 1. Fixed frame; 11. Translation frame; 12. Support frame; 121. Force spring; 2. Translation assembly; 21. Translation screw; 22. Translation guide rail; 23. Translation motor; 3. Lifting block; 31. Nuclear radiation detector; 4. Lifting mechanism; 41. Lifting screw; 411. External screw; 412. Internal screw; 42. Lifting guide rail; 43. Lifting motor; 5. Automatic connection mechanism; 51. Top block; 511. Cavity; 52. Connecting spring; 53. Connecting column; 531. Fixed groove; 54. Reset assembly; 541. Reset spring; 542. Push plate; 55. Pull rope; 551. Connecting hole; 56. Take-up wheel; 57. Linkage assembly; 571. Linkage gear; 572. Linkage rack; 573. Self-locking drive member; 5731. Self-locking motor; 5732. Restoration gear. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0019] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0020] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. The directions or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 limiting the present invention.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0024] A device for quickly identifying the activity of associated radioactive waste residue provided by the present invention is now described.

[0025] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a device for rapid identification of the activity of associated radioactive waste residues, including two sets of fixed frames 1 arranged opposite to each other, a translation frame 11 is slidably connected to the fixed frame 1, and a translation component 2 for driving the translation frame 11 to slide horizontally is arranged on the fixed frame 1; a support frame 12 is arranged on the translation frame 11, a lifting block 3 is slidably connected to the support frame 12, and a lifting mechanism 4 for driving the lifting block 3 to lift and lower is arranged between the translation frame 11 and the support frame 12; a nuclear radiation detector 31 for detecting the activity of nuclides is arranged on the lifting block 3, and the two nuclear radiation detectors 31 are arranged opposite to each other.

[0026] Compared with the prior art, the present embodiment provides a device for rapid identification of the activity of associated radioactive waste residues. The device drives the translation frame 11 to slide horizontally through the translation component 2 and drives the lifting block 3 to lift vertically through the lifting mechanism 4, thereby realizing multi-point detection of horizontal and vertical position adjustment of a single nuclear radiation detector 31. The device is suitable for steel boxes of various sizes, reduces the space occupied by multiple sets of detection devices, and reduces costs.

[0027] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The translation assembly 2 includes a translation screw 21, a translation guide rail 22 and a translation motor 23. The translation screw 21 is horizontally rotatably connected to the bottom of the fixed frame 1. The translation guide rail 22 is fixed to the bottom of the fixed frame 1 and is parallel to the translation screw 21. The translation motor 23 is arranged at the bottom of the fixed frame 1. The output shaft of the translation motor 23 is coaxially fixed with the translation screw 21. The translation frame 11 is threadedly connected to the translation screw 21, and the translation frame 11 is slidingly connected to the translation guide rail 22.

[0028] When the horizontal position of the nuclear radiation detector 31 needs to be adjusted, the translation motor 23 is started to rotate the translation screw 21, and the translation screw 21 drives the translation frame 11 to slide along the length direction of the translation guide rail 22, thereby improving the horizontal adjustment efficiency of the nuclear radiation detector 31.

[0029] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The lifting mechanism 4 includes a lifting screw 41, a lifting guide rail 42 and a lifting motor 43. The lifting screw 41 is vertically rotatably connected between the top of the support frame 12 and the translation frame 11. The lifting guide rail 42 is vertically fixed on the translation frame 11. The lifting motor 43 is arranged on the translation frame 11. The output shaft of the lifting motor 43 is coaxially fixed with the lifting screw 41. The lifting block 3 is threadedly connected to the lifting screw 41, and the lifting block 3 is slidably connected to the lifting guide rail 42.

[0030] When the height of the nuclear radiation detector 31 needs to be adjusted, the lifting motor 43 is started to rotate the lifting screw 41, and the lifting screw 41 drives the lifting block 3 to slide along the length direction of the lifting guide rail 42, thereby improving the vertical adjustment efficiency of the nuclear radiation detector 31.

[0031] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The lifting screw 41 includes an outer screw 411 and an inner screw 412. The lifting block 3 is threadedly connected to the outer screw 411. The outer screw 411 and the lifting block 3 are self-locking threads. The top of the outer screw 411 is rotatably connected to the top of the support frame 12, and the support frame 12 is a vertically retractable structure; the bottom of the inner screw 412 is coaxially fixed to the output shaft of the lifting motor 43, and the inner screw 412 is coaxially threadedly connected to the inside of the outer screw 411; an automatic connecting mechanism 5 for relatively fixing the outer screw 411 and the inner screw 412 is provided between the bottom of the outer screw 411 and the inner screw 412. The automatic connecting mechanism 5 is used to release the fixation between the outer screw 411 and the inner screw 412 when the lifting block 3 rises to the top of the outer screw 411, and to relatively fix the outer screw 411 and the inner screw 412 again after the outer screw 411 is lowered and reset.

[0032] The setting of the outer screw 411 and the inner screw 412 can greatly reduce the height of the lifting screw 41 when inspecting a small steel box, making the lifting mechanism 4 more stable when the translation assembly 2 drives the translation frame 11 to translate, thereby improving the connection life between the lifting screw 41 and the translation frame 11.

[0033] When testing a small steel box, the outer screw 411 is completely wrapped around the inner screw 412, so that the height of the lifting screw 41 is the lowest. The automatic connection mechanism 5 relatively fixes the outer screw 411 and the inner screw 412 to achieve stable lifting of the low-height lifting block 3.

[0034] When inspecting a large steel box, the lifting block 3 first rises to a position close to the top of the outer screw 411. At this time, the automatic connecting mechanism 5 releases the fixation between the outer screw 411 and the inner screw 412. Since the thread between the outer screw 411 and the lifting block 3 has a self-locking function, and the lifting block 3 is guided by the lifting rail, when the lifting motor 43 drives the inner screw 412 to rotate, the outer screw 411 cannot rotate, but rises relative to the inner screw 412. At this time, the relative position of the lifting block 3 on the outer screw 411 does not move, which improves the lifting efficiency of the outer screw 411 and the lifting block 3, and there is no need to add an additional power source to the outer screw 411.

[0035] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The thread friction force between the outer screw 411 and the inner screw 412 is smaller than the thread friction force between the outer screw 411 and the lifting block 3 .

[0036] After the outer screw 411 and the inner screw 412 are released from fixation, when the lifting motor 43 drives the inner screw 412 to rotate, the lifting of the outer screw 411 is more stable.

[0037] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: A force spring 121 facing the lifting block 3 is fixed on the downward surface of the top of the support frame 12. When the automatic connection mechanism 5 releases the fixation between the outer screw 411 and the inner screw 412, the force spring 121 is in a compressed state.

[0038] When inspecting a large steel box, the lifting block 3 rises to a position close to the top of the outer screw 411. At this time, the lifting block 3 squeezes the force spring 121 upward, and the force spring 121 applies downward pressure to the lifting block 3, so that the thread friction between the lifting block 3 and the outer screw 411 is greater, further improving the stability of the inner screw 412 driving the outer screw 411 to lift and lower by rotating.

[0039] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The automatic connection mechanism 5 includes a top block 51, a connecting spring 52, a connecting column 53, a reset assembly 54, a pull rope 55, a take-up wheel 56 and a linkage assembly 57; a cavity 511 is provided inside the inner screw 412 near the translation frame 11, the top block 51 slides vertically in the cavity 511, the connecting spring 52 is arranged in the cavity 511 and connected to the top block 51; a fixing groove 531 extending to the outer screw 411 is provided on the inner side wall of the cavity 511 below the top block 51, and the connecting column 53 is provided on the inner side wall of the cavity 511. 53 is slidably connected between the cavity 511 and the fixing groove 531; when the outer screw 411 and the inner screw 412 are relatively fixed, the connecting column 53 is located in the fixing grooves 531 of the outer screw 411 and the inner screw 412 at the same time; the reset component 54 is arranged in the fixing groove 531 of the outer screw 411 and is used to drive the connecting column 53 to reset until one end is located in the cavity 511 and the other end is located in the fixing groove 531 of the inner screw 412, and the end of the bottom end of the top block 51 that contacts and squeezes the connecting column 53 is hemispherical; The take-up wheel 56 is rotatably connected to the top of the support frame 12, and a connecting hole 551 coaxial with the inner screw 412 is provided on the inner top wall of the cavity 511. One end of the pull rope 55 is located in the cavity 511 and is fixed to the top block 51, and the other end of the pull rope 55 passes through the connecting hole 551 and is fixed to the take-up wheel 56; the linkage assembly 57 is arranged between the lifting block 3 and the take-up wheel 56. When the lifting block 3 rises to near the top of the outer screw 411, the linkage assembly 57 drives the take-up wheel 56 to rotate.

[0040] When the take-up wheel 56 does not reel in the pull rope 55, the connecting spring 52 pushes the top block 51 downward to the bottom of the cavity 511. At this time, the top block 51 maintains an extrusion state on the connecting column 53. The connecting column 53 is simultaneously located in the fixing groove 531 of the outer screw 411 and the inner screw 412, so that the outer screw 411 and the inner screw 412 remain relatively fixed.

[0041] When it is necessary to inspect a large steel box, the lifting block 3 rises to a position close to the top of the outer screw 411, and drives the take-up wheel 56 to rotate through the linkage assembly 57. The take-up wheel 56 reels the pull rope 55 to move the top block 51 upward, and the connecting spring 52 is compressed until the top block 51 is disengaged from the connecting column 53. At this time, the reset assembly 54 drives the connecting column 53 to slide toward the cavity 511 and disengage from the fixing groove 531 of the outer screw 411, thereby automatically releasing the fixation between the outer screw 411 and the inner screw 412, thereby improving the convenience of operation.

[0042] Furthermore, in order to reduce the number of working times of the automatic connection mechanism 5 and improve the efficiency of radionuclide activity detection, when switching from small steel box detection to large steel box detection, the low points of the large steel box can be detected first. After all the low points are detected, the outer screw 411 is raised to perform unified detection of high-number points.

[0043] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The reset assembly 54 includes a reset spring 541 and a push plate 542. The push plate 542 is slidably connected in the fixed groove 531 of the outer screw 411. The reset spring 541 is arranged in the fixed groove 531 of the outer screw 411 and is connected to the push plate 542. The push plate 542 is located on the side of the reset spring 541 close to the cavity 511. When the reset spring 541 is in a natural state, the push plate 542 is coplanar with the side facing the cavity 511 at the junction of the fixed groove 531 in the outer screw 411 and the inner screw 412.

[0044] When the outer screw 411 and the inner screw 412 are relatively fixed, the return spring 541 is in a compressed state. When the pull rope 55 pulls the top block 51 upward to separate from the connecting column 53, the elastic force of the return spring 541 drives the push plate 542 to push the connecting column 53 out of the fixing groove 531 of the outer screw 411, thereby improving the fixing and releasing efficiency between the outer screw 411 and the inner screw 412.

[0045] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The linkage assembly 57 includes a linkage gear 571, a linkage rack 572 and a self-locking drive member 573. The linkage gear 571 is coaxially fixed on the rotating shaft of the take-up wheel 56. The linkage rack 572 is vertically slidably connected to the lifting block 3 and is used to engage with the linkage gear 571. The self-locking drive member 573 is arranged on the lifting block 3 and is used to drive the linkage rack 572 to self-lock in position after sliding.

[0046] When the lifting block 3 moves on the outer screw 411, the linkage rack 572 remains stationary. When the lifting block 3 moves upward to near the top of the outer screw 411, the linkage rack 572 meshes with the linkage gear 571 and drives it to rotate.

[0047] When the outer screw 411 needs to be reset to be fixed with the inner screw 412 again, the lifting motor 43 drives the inner screw 412 to reverse and the outer screw 411 is lowered and reset until the fixing groove 531 of the outer screw 411 and the inner screw 412 are connected again, and the self-locking drive member 573 drives the linkage rack 572 to move downward, so that the linkage rack 572 drives the linkage gear 571 to reverse, and the take-up wheel 56 releases the line, and the connecting spring 52 drives the top block 51 to squeeze the connecting column 53, and the outer screw 411 and the inner screw 412 are relatively fixed again, and the lifting motor 43 continues to drive the inner screw 412 to rotate to realize the lowering of the lifting block 3 on the outer screw 411, thereby improving the overall convenience of operation.

[0048] like Figures 1 to 3 As shown, the present invention provides a specific implementation method based on the above implementation method as follows: The self-locking driving member 573 includes a self-locking motor 5731 and a restoring gear 5732 . The self-locking motor 5731 is arranged on the 3rd row of lifting blocks. The restoring gear 5732 is coaxially fixed on the output shaft of the self-locking motor 5731 . The restoring gear 5732 is meshed with the linkage rack 572 .

[0049] When the lifting motor 43 drives the inner screw 412 to reverse and the outer screw 411 to descend and reset, the self-locking motor 5731 starts and drives the restoration gear 5732 to rotate, the restoration gear 5732 drives the linkage rack 572 to descend, and the linkage rack 572 drives the linkage gear 571 to rotate until it is separated from it. After the lifting block 3 descends on the outer screw 411, the self-locking motor 5731 drives the restoration gear 5732 to reverse and reset the linkage rack 572 again to facilitate the next switching detection of the large steel box.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A device for quickly identifying the activity of associated radioactive waste residues, comprising two sets of fixed frames (1) arranged opposite to each other, characterized in that: The fixed frame (1) is slidably connected to a translation frame (11), and the fixed frame (1) is provided with a translation assembly (2) for driving the translation frame (11) to slide horizontally; the translation frame (11) is provided with a support frame (12), and a lifting block (3) is slidably connected to the support frame (12), and a lifting mechanism (4) for driving the lifting block (3) to move up and down is provided between the translation frame (11) and the support frame (12); and the lifting block (3) is provided with a nuclear radiation detector (31) for detecting the activity of a nuclide, and two nuclear radiation detectors (31) are arranged opposite to each other.

2. The device for rapid identification of associated radioactive waste activity according to claim 1, characterized in that: The translation assembly (2) comprises a translation screw (21), a translation guide rail (22) and a translation motor (23); the translation screw (21) is horizontally rotatably connected to the bottom of the fixed frame (1); the translation guide rail (22) is fixed to the bottom of the fixed frame (1) and is parallel to the translation screw (21); the translation motor (23) is arranged at the bottom of the fixed frame (1); the output shaft of the translation motor (23) is coaxially fixed to the translation screw (21); the translation frame (11) is threadedly connected to the translation screw (21); and the translation frame (11) is slidably connected to the translation guide rail (22).

3. The device for rapid identification of associated radioactive waste activity according to claim 1, characterized in that: The lifting mechanism (4) comprises a lifting screw (41), a lifting guide rail (42) and a lifting motor (43); the lifting screw (41) is vertically rotatably connected between the top of the support frame (12) and the translation frame (11); the lifting guide rail (42) is vertically fixed on the translation frame (11); the lifting motor (43) is arranged on the translation frame (11); the output shaft of the lifting motor (43) is coaxially fixed with the lifting screw (41); the lifting block (3) is threadedly connected to the lifting screw (41); and the lifting block (3) is slidably connected to the lifting guide rail (42).

4. A device for rapid identification of activity of associated radioactive waste residues as claimed in claim 3, characterized in that: The lifting screw (41) comprises an outer screw (411) and an inner screw (412); the lifting block (3) is threadedly connected to the outer screw (411); a self-locking thread is formed between the outer screw (411) and the lifting block (3); the top of the outer screw (411) is rotatably connected to the top of the support frame (12); the support frame (12) is a vertically retractable structure; the bottom of the inner screw (412) is coaxially fixed to the output shaft of the lifting motor (43); the inner screw (412) is coaxially threadedly connected to the outer screw (411). an automatic connection mechanism (5) for fixing the outer screw (411) and the inner screw (412) relative to each other is provided between the bottom of the outer screw (411) and the inner screw (412); the automatic connection mechanism (5) is used to release the fixation between the outer screw (411) and the inner screw (412) when the lifting block (3) rises to the top of the outer screw (411), and to fix the outer screw (411) and the inner screw (412) relative to each other again after the outer screw (411) is lowered and reset.

5. A device for rapid identification of activity of associated radioactive waste residues as claimed in claim 4, characterized in that: The thread friction force between the outer screw (411) and the inner screw (412) is smaller than the thread friction force between the outer screw (411) and the lifting block (3).

6. A device for rapid identification of activity of associated radioactive waste residues as claimed in claim 5, characterized in that: A force spring (121) facing the lifting block (3) is fixed on the downward surface of the top of the support frame (12), and when the automatic connection mechanism (5) releases the fixation between the outer screw rod (411) and the inner screw rod (412), the force spring (121) is in a compressed state.

7. A device for rapid identification of associated radioactive waste activity as claimed in claim 4, characterized in that: The automatic connection mechanism (5) comprises a top block (51), a connecting spring (52), a connecting column (53), a reset assembly (54), a pull rope (55), a take-up wheel (56) and a linkage assembly (57); a cavity (511) is provided inside the inner screw (412) near the translation frame (11); the top block (51) slides vertically in the cavity (511); the connecting spring (52) is arranged in the cavity (511) and is connected to the top block (51); a fixing groove (531) extending to the outer screw (411) is provided on the inner side wall of the cavity (511) below the top block (51); the connecting column (53) is provided on the inner side wall of the cavity (511) and is provided on the inner side wall of the cavity (511). (53) is slidably connected between the cavity (511) and the fixing groove (531); when the outer screw (411) and the inner screw (412) are relatively fixed, the connecting column (53) is simultaneously located in the fixing grooves (531) of the outer screw (411) and the inner screw (412); the resetting component (54) is arranged in the fixing groove (531) of the outer screw (411) and is used to drive the connecting column (53) to be reset to a state where one end is located in the cavity (511) and the other end is located in the fixing groove (531) of the inner screw (412), and the bottom end of the top block (51) and the end portion of the connecting column (53) that contacts and is extruded are both hemispherical; The take-up wheel (56) is rotatably connected to the top of the support frame (12); a connecting hole (551) coaxial with the inner screw rod (412) is provided on the inner top wall of the cavity (511); one end of the pull rope (55) is located in the cavity (511) and is fixed to the top block (51); the other end of the pull rope (55) passes through the connecting hole (551) and is fixed to the take-up wheel (56); the linkage assembly (57) is arranged between the lifting block (3) and the take-up wheel (56); when the lifting block (3) rises to a position close to the top of the outer screw rod (411), the linkage assembly (57) drives the take-up wheel (56) to rotate.

8. The device for rapid identification of activity of associated radioactive waste residues as claimed in claim 7, characterized in that: The reset assembly (54) comprises a reset spring (541) and a push plate (542), wherein the push plate (542) is slidably connected in the fixing groove (531) of the outer screw (411), the reset spring (541) is arranged in the fixing groove (531) of the outer screw (411) and is connected to the push plate (542), and the push plate (542) is located on a side of the reset spring (541) close to the cavity (511); when the reset spring (541) is in a natural state, the side of the push plate (542) facing the cavity (511) is coplanar with the junction of the fixing groove (531) in the outer screw (411) and the inner screw (412).

9. The device for rapid identification of activity of associated radioactive waste residues as claimed in claim 7, characterized in that: The linkage assembly (57) comprises a linkage gear (571), a linkage rack (572) and a self-locking drive member (573); the linkage gear (571) is coaxially fixed on the rotating shaft of the take-up wheel (56); the linkage rack (572) is vertically slidably connected to the lifting block (3) and is used to mesh with the linkage gear (571); the self-locking drive member (573) is arranged on the lifting block (3) and is used to drive the linkage rack (572) to slide and then self-lock in position.

10. A device for rapid identification of activity of associated radioactive waste residues as claimed in claim 9, characterized in that: The self-locking drive member (573) comprises a self-locking motor (5731) and a restoring gear (5732); the self-locking motor (5731) is arranged on the lifting block (3); the restoring gear (5732) is coaxially fixed on the output shaft of the self-locking motor (5731); and the restoring gear (5732) is meshed with the linkage rack (572).

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