Shielding device for salt sampling system and sample transfer trolley

Abstract

The utility model relates to a shielding device and sample transfer trolley for salt block sampling system for shielding device of salt block sampling system includes: shielding jar, sampling cup, when sampling cup is in shielding jar, top projects shielding jar outside, cover, can rotate relative to shielding jar, including closing position and opening position, when covering sampling cup top opening in closing position, when being located sampling cup moving path outside in opening position, driving part, when sampling cup moves into shielding jar, with sampling cup moves, linkage, linkage is connected on cover, linkage rotates with cover, linkage can rotate to be located sampling cup moves into shielding jar when the moving path of driving part or moving path outside, when cover is located opening position, linkage is located sampling cup moves into shielding jar when the moving path of driving part. The present application can be linked with the existing mechanical arm mechanism, realizes the full -automatic switch cover control, and the manufacturing cost reduces, and the operator does not need on -the -spot operation.

Description

Technical Field

[0001] This utility model relates to the technical field of nuclear chemical industry, specifically to a shielding device and sample transfer trolley for a salt block sampling system. Background Technology

[0002] In the nuclear chemical industry, the Solid Waste Treatment System (ZST) and the wet waste treatment system of the QX nuclear waste facility contain salt block sampling devices. These devices are crucial components in the wet waste treatment equipment, used for sampling, collecting, and transferring dried salt blocks from salt drums. Workers monitor the dosage rate of the sampled salt blocks to confirm the proper functioning of the wet waste treatment equipment.

[0003] In a salt block sampling device, the shielding container is used to transfer the sample. The shielding container is typically designed with a top opening and equipped with an electrically operated lid-opening mechanism. During sampling, the electrically operated shielding container lid opens, the empty sampling cup inside is picked up by a robotic arm, and transferred to the sample placement station where the sample is placed into the sampling cup. The robotic arm then transfers the sample-filled sampling cup to the top of the shielding container and places it inside. The electrically operated shielding container lid then closes.

[0004] The shielding device with an electrically operated cover requires an external power supply or a built-in power supply. The external power supply method requires personnel to enter the sampling device to connect the power supply, which poses a radiation risk. The built-in power supply method has the problem of large size, and both methods have the problem of high cost. Utility Model Content

[0005] Based on the above description, this utility model provides a shielding device and a sample transfer trolley for a salt block sampling system to solve the problems existing in the shielding device of the electric switch cover.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: Firstly, this application provides a shielding device for a salt block sampling system, the technical solution of which is as follows: A shielding device for a salt block sampling system, comprising: Shielding container, wherein the shielding container has an opening at the top; The sampling cup has an opening at the top and can be vertically moved into or out of the shielding container. When the sampling cup is located inside the shielding container and supported by the shielding container, the top of the sampling cup protrudes outside the shielding container. A cover body is connected to the shielding container and is rotatable relative to the shielding container. The cover body includes a closed position and an open position. When the cover body is in the closed position, it covers the top opening of the sampling cup located inside the shielding container. When the cover body is in the open position, it is located outside the movement path of the sampling cup when it moves away from the shielding container. A driving component that moves with the sampling cup as the sampling cup moves into the shielding container; A linkage component is connected to the cover body. The linkage component rotates with the cover body. The linkage component can rotate to be located on or outside the movement path of the driving component when the sampling cup moves into the shielding container. When the cover body is in the open position, the linkage component is located on the movement path of the driving component when the sampling cup moves into the shielding container. Specifically, when the sampling cup moves away from the shielding container, the lid is driven to rotate from the closed position to the open position by the sampling cup, and when the sampling cup moves into the shielding container, the linkage is driven to rotate by the driving member so that the lid rotates from the open position to the closed position.

[0007] Preferably, the rotation axis of the cover relative to the shielding container is horizontal, and the rotation axis is spaced apart from the shielding container.

[0008] Preferably, the driving component is connected to the sampling cup, and the driving component and the sampling cup are spaced apart in the horizontal direction.

[0009] Preferably, the drive unit is connected to the robotic arm that grasps the sampling cup, and when the robotic arm grasps the sampling cup, the drive unit and the sampling cup are spaced apart in the horizontal direction.

[0010] Preferably, the cover further includes an intermediate position, and a counterweight is connected to the cover. During the rotation of the cover from the closed position to the open position, when the cover passes the intermediate position, the cover rotates towards the open position under the gravity of the counterweight. During the rotation of the cover from the open position to the closed position, when the cover passes the intermediate position, the cover rotates towards the closed position under its own gravity.

[0011] Preferably, a locking assembly is provided between the shielding container and the cover, the locking assembly connecting the shielding container and the cover when the cover is in the closed position, so as to restrict the cover from rotating to the open position.

[0012] Preferably, the cover body includes a cover plate and a cup lid. The cover plate is connected to the shielding can and can rotate relative to the shielding can. The cup lid and the linkage are both connected to the cover plate. The cup lid and the linkage are distributed at intervals in a direction perpendicular to the rotation axis of the cover plate, and the linkage is located between the rotation axis of the cup lid and the cover plate.

[0013] Secondly, this application provides a sample transfer cart, including a vehicle body and a shielding device for a salt block sampling system as described above, wherein the vehicle body can travel on the ground and the shielding device for the salt block sampling system is installed on the vehicle body.

[0014] Compared with the prior art, the technical solution of this application has at least the following beneficial technical effects: This application utilizes a shielding container comprised of a shielding vessel, a sampling cup, and a lid. The sampling cup can be grasped by a robotic arm and detached from the shielding vessel for movement to a sample placement station. After the sampling cup is placed inside the shielding vessel, the lid closes the top opening of the sampling cup, forming a sealed shielding container to shield against radiation. By incorporating a linkage connected to the lid and a drive mechanism that moves with the sampling cup, when the sampling cup is grasped by the robotic arm and moved along the shielding vessel, the lid is driven to the open position by the sampling cup, allowing the sampling cup to detach from the shielding vessel. When the robotic arm places the sampling cup into the shielding vessel, the drive mechanism moves with the sampling cup, contacting the linkage mechanism during its movement and causing it to rotate. This rotation of the linkage mechanism causes the lid to rotate from the open position to the closed position until the sampling cup is fully placed inside the shielding vessel. At this point, the lid rotates to the closed position, covering the opening of the sampling cup and sealing it. Together with the shielding vessel, this forms a sealed container, thus shielding the sample from radiation. The opening and closing of the lid is linked to the taking out and putting in the sampling cup, realizing the automatic opening and closing function of the lid. No electrical components or power supply are required, no manual operation is required, radiation risks are avoided, and the device cost is low. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the sample transfer cart provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the sample transfer cart from another perspective, provided in an embodiment of the present invention. Figure 3 This is a schematic diagram showing the position of the cover in the sample transfer cart provided in an embodiment of the present utility model, wherein the cover is located in the closed position, the middle position, and the open position from top to bottom; Figure 4 This is a schematic diagram of the sampling cup in the sample transfer cart provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the drive component in the sample transfer cart provided in an embodiment of the present invention; Figure 6This is a schematic diagram illustrating the cooperation between the shielding device and the robotic arm in the sample transfer cart provided in this embodiment of the utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Vehicle body; 11. Load-bearing plate; 12. Wheel; 13. Mounting bracket; 14. Handrail; 2. Shielding device; 21. Shielding container; 22. Sampling cup; 221. Cup body section; 222. Cup mouth section; 23. Lid; 231. Lid plate; 232. Cup lid; 24. Pin shaft; 25. Locking assembly; 26. Drive component; 27. Linkage plate; 28. Counterweight; 3. Robotic arm. Detailed Implementation

[0017] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0019] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0020] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0021] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0022] Reference Figure 1 As shown, this application provides a sample transfer cart, including a cart body 1 and a shielding device 2. The cart body 1 can travel on the ground, and the shielding device 2 is used to hold salt block samples in the salt block sampling system to shield the sample from radiation and facilitate sample transfer.

[0023] Reference Figure 1 and Figure 2 As shown, the vehicle body 1 includes a support plate 11 and multiple wheels 12. The wheels 12 are installed at the bottom of the support plate 11 so that the support plate 11 can move on the ground. A mounting frame 13 is installed on the support plate 11 for the installation of the shielding device 2, and a handrail 14 is provided on the mounting frame 13 for personnel to push the trolley.

[0024] Reference Figure 1 and Figure 2 As shown, the shielding device 2 includes a shielding container 21, a sampling cup 22, and a cover 23. Both the shielding container 21 and the sampling cup 22 have top openings, allowing the sampling cup 22 to move vertically into or out of the shielding container 21. The top opening of the shielding container 21 facilitates the robotic arm 3 in removing or placing the sampling cup 22 into the shielding container 21, while the top opening of the sampling cup 22 facilitates the placement of samples into the sampling cup 22.

[0025] Reference Figure 1 and Figure 2 As shown, when the sampling cup 22 is located inside and supported by the shielding container 21, the top of the sampling cup 22 protrudes outside the shielding container 21. This arrangement allows the sampling cup 22 to partially protrude outside the shielding container 21 when it is inside, so that the robotic arm 3 can grasp the sampling cup 22.

[0026] Reference Figure 2 and Figure 3 As shown, the cover 23 is connected to the shielding container 21 and can rotate relative to the shielding container 21. The cover 23 has a closed position and an open position. When the cover 23 is in the closed position, it covers the top opening of the sampling cup 22 located inside the shielding container 21. When the cover 23 is in the open position, it is located outside the movement path of the sampling cup 22 when it moves away from the shielding container 21. By covering the top opening of the sampling cup 22 with the cover 23, the sampling cup 22 is sealed, forming a closed shielding container to shield radiation.

[0027] Specifically, both the shielding container 21 and the cover 23 are mounted on the mounting bracket 13.

[0028] Reference Figure 4 As shown, the sampling cup 22 is configured to include a cup body segment 221 and a cup mouth segment 222. The outer diameter of the cup body segment 221 is smaller than the outer diameter of the cup mouth segment 222, and the outer diameter of the cup mouth segment 222 is larger than the diameter of the top opening of the shielding container. A limiting groove is provided on the outer wall of the cup mouth segment 222 for gripping by the robotic arm 3. When the sampling cup 22 is placed in the shielding container 21, the cup body segment 221 is completely located within the shielding container 21, and the cup mouth segment 222 is supported on the top surface of the shielding container 21. The shielding container 21 can provide radiation shielding for the cup body segment 221. The larger outer diameter of the cup mouth segment 222 results in a larger wall thickness, thus providing sufficient shielding effect. Therefore, when the cup lid 232 covers the top opening of the sampling cup 22, a shielding container with a relatively large wall thickness is formed to ensure the shielding effect.

[0029] Reference Figure 2 As shown, specifically, the rotation axis of the cover 23 relative to the shielding container 21 is horizontal, and the rotation axis is spaced apart from the shielding container 21. The cover 23 can be rotated upward from the closed position to the open position to open the opening of the sampling cup 22, or rotated downward from the open position to the closed position to cover the opening of the sampling cup 22.

[0030] Reference Figure 2 As shown, the cover 23 includes a cover plate 231 and a cup lid 232. The cover plate 231 is connected to the shielding container 21 and can rotate relative to the shielding container 21. The cup lid 232 is connected to the cover plate 231 and is spaced apart from the rotation axis of the cover plate 231. The cup lid 232 is designed to have a large thickness and is adapted to the top opening of the sampling cup 22, so that the cup lid 232 is partially embedded in the top opening of the sampling cup 22 to ensure a sealing effect. Specifically, in this embodiment, a conical countersunk hole is provided around the top opening of the sampling cup 22, and the cup lid 232 is partially designed to be frustum-shaped to fit the conical countersunk hole, so that the cup lid 232 can be embedded in the conical countersunk hole to ensure a sealing effect.

[0031] Reference Figure 2 As shown, the cover plate 231 is designed so that its surface is parallel to its rotation axis. The cover plate 231 is rotatably mounted on the mounting frame 13 via the pin 24. The specific structure by which the cover plate 231 is rotatably mounted on the mounting frame 13 via the pin 24 is a conventional technical means and will not be described in detail here.

[0032] Reference Figure 1 and Figure 2As shown, when the sampling cup 22 is located in the shielding container 21 and the cover 23 is in the closed position, in order to prevent the cover 23 from rotating and opening the sampling cup 22 during the trolley's push, a locking assembly 25 is provided between the shielding container 21 and the cover 23. The locking assembly 25 connects the shielding container 21 and the cover 23 when the cover 23 is in the closed position, so as to restrict the cover 23 from rotating to the open position.

[0033] Reference Figure 2 As shown, specifically, the locking assembly 25 is disposed between the mounting bracket 13 and the cover plate 231. In this embodiment, the locking assembly 25 adopts a latch, and a latch of appropriate size is selected according to the actual size of the shielding device 2. The latch hook is installed on the cover plate 231. Before pushing the trolley, the cover plate 231 and the mounting bracket 13, i.e., the shielding tank 21, can be quickly locked by the latch to prevent the cover plate 231 from rotating and opening the sampling cup 22 due to vibration during the pushing of the trolley.

[0034] In order to achieve automatic opening and closing of the cover 23 during automatic salt sampling, a drive component 26 and a linkage component are provided. The drive component 26 moves with the sampling cup 22 when it moves into the shielding container 21, while the linkage component is connected to the cover 23 and rotates with the cover 23. The linkage component can rotate to be located on or outside the moving path of the drive component 26 when the sampling cup 22 moves into the shielding container 21. When the cover 23 is in the open position, the linkage component is located on the moving path of the drive component 26 when the sampling cup 22 moves into the shielding container 21.

[0035] Reference Figure 2 and Figure 3 As shown, specifically, the cup lid 232 and the linkage are spaced apart in a direction perpendicular to the rotation axis of the cover plate 231, and the linkage is located between the rotation axis of the cup lid 232 and the cover plate 231. That is, the linkage is located between the cup lid 232 and the pin 24. When the linkage rotates with the cover plate 231, the spaced arrangement between the shielding can 21 and the pin 24 can prevent the linkage from interfering with the shielding can 21 when it rotates with the lid 23.

[0036] In this embodiment, the linkage component is the linkage plate 27. The surface of the linkage plate 27 is perpendicular to the cover plate 231 and parallel to the axis of the pin 24. The linkage plate 27 has a larger area to ensure that the driving component 26 contacts the linkage plate 27 and drives the linkage plate 27 to rotate when it moves with the sampling cup 22.

[0037] Reference Figure 5 and Figure 6As shown, the drive component 26 can be directly connected to the sampling cup 22, or connected to the robotic arm 3 that grips the sampling cup 22. When the robotic arm 3 grips the sampling cup 22, the drive component 26 and the sampling cup 22 are spaced apart in the horizontal direction. When the drive component 26 is connected to the sampling cup 22, the drive component 26 and the sampling cup 22 are spaced apart in the horizontal direction. When the drive component 26 is connected to the robotic arm 3 that grips the sampling cup 22, the drive component 26 and the sampling cup 22 are spaced apart in the horizontal direction. When the robotic arm 3 is designed to place the sampling cup 22, the drive component 26 is positioned between the shielding container 21 and the pin 24 when the sampling cup 22 is lowered into the shielding container 21. This allows the drive component 26 to contact the linkage plate 27 located on its movement path as the sampling cup 22 descends, driving the linkage plate 27 to rotate downwards, thereby driving the cover 23 to rotate to the closed position.

[0038] Reference Figure 5 As shown, in this embodiment, the drive component 26 is connected to the robotic arm 3 that grips the sampling cup 22. The drive component 26 is a drive wheel with a horizontal axis. When the sampling cup 22 is lowered into the shielding container 21, the drive wheel is in a position where its axis is parallel to the axis of the pin 24. The drive wheel allows for rolling friction between the drive component 26 and the linkage, thereby avoiding abnormal noise and jamming caused by sliding friction.

[0039] Reference Figure 2 and Figure 3 As shown, the cover 23 also includes a middle position, and a counterweight is connected to the cover 23. During the process of the cover 23 rotating from the closed position to the open position, when the cover 23 passes the middle position, the cover 23 rotates towards the open position under the gravity of the counterweight. During the process of the cover 23 rotating from the open position to the closed position, when the cover 23 passes the middle position, the cover 23 rotates towards the closed position under its own gravity.

[0040] In this embodiment, the counterweight is a counterweight block 28, which is fixed to the cover plate 231 and close to the pin 24. The counterweight block 28, cover plate 231, cup lid 232, and pin 24 constitute a lever mechanism. When the torques on both sides of the pin 24 are unbalanced, the side of the cover plate 231 with the larger torque rotates downward. In the design, when the cover 23 rotates to the middle position, the cover plate 231 is balanced on both sides of the pin 24, and at this time the cup lid 232 is still located above the top opening of the shielded container 21. Thus, when the sampling cup 22 moves away from the shielded container 21, the sampling cup 22 can move upward a short distance to make the cover 23 pass the middle position. At this time, the forces on both sides of the cover plate 231 are unbalanced, and the cover plate 231 rotates to the open position under the gravity of the counterweight block 28. The cover plate 231 does not need to be driven to rotate by the sampling cup 22 throughout the entire process.

[0041] Before the sampling cup 22 is completely placed into the shielding container 21, the linkage plate 27 needs to drive the cover 23 to rotate past the middle position to ensure that the cover 23 can rotate to the closed position under its own weight to close the top opening of the sampling cup 22.

[0042] In this embodiment, the sample transfer cart is linked with the existing robotic arm 3 mechanism of the salt block sampling device through the shielding device 2, achieving fully automatic cover opening and closing control without human intervention. By eliminating the need for electrical design and electric control, the cart's manufacturing cost is significantly reduced. Furthermore, it requires no power supply, eliminating the need for on-site operation and reducing the workload of on-site personnel, while also preventing accidental operation.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shielding device for a salt block sampling system, characterized in that, include: A shielding container (21) with an opening at the top; The sampling cup (22) has an opening at the top. The sampling cup (22) can be vertically moved into or out of the shielding container (21). When the sampling cup (22) is located inside the shielding container (21) and supported by the shielding container (21), the top of the sampling cup (22) protrudes out of the shielding container (21). A cover (23) is connected to the shielding container (21). The cover (23) is rotatable relative to the shielding container (21). The cover (23) includes a closed position and an open position. When the cover (23) is in the closed position, it covers the top opening of the sampling cup (22) located inside the shielding container (21). When the cover (23) is in the open position, it is located outside the movement path of the sampling cup (22) when it moves away from the shielding container (21). A drive unit (26) moves with the sampling cup (22) as the sampling cup (22) moves into the shielding container (21); A linkage component is connected to the cover (23). The linkage component rotates with the cover (23). The linkage component can rotate to be located on or outside the moving path of the driving component (26) when the sampling cup (22) moves into the shielding container (21). When the cover (23) is in the open position, the linkage component is located on the moving path of the driving component (26) when the sampling cup (22) moves into the shielding container (21). Specifically, when the sampling cup (22) moves away from the shielding container (21), the lid (23) is driven to rotate from the closed position to the open position by the sampling cup (22), and when the sampling cup (22) moves into the shielding container (21), the linkage is driven to rotate by the driving member (26) so that the lid (23) rotates from the open position to the closed position.

2. The shielding device for a salt block sampling system according to claim 1, characterized in that: The rotation axis of the cover (23) relative to the shielding tank (21) is horizontal, and the rotation axis is spaced apart from the shielding tank (21).

3. The shielding device for a salt block sampling system according to claim 2, characterized in that: The driving component (26) is connected to the sampling cup (22), and the driving component (26) and the sampling cup (22) are spaced apart in the horizontal direction.

4. The shielding device for a salt block sampling system according to claim 2, characterized in that: The drive unit (26) is connected to the robotic arm (3) that grips the sampling cup (22). When the robotic arm (3) grips the sampling cup (22), the drive unit (26) and the sampling cup (22) are spaced apart in the horizontal direction.

5. The shielding device for a salt block sampling system according to claim 2, characterized in that: The cover (23) also includes an intermediate position. A counterweight is connected to the cover (23). During the rotation of the cover (23) from the closed position to the open position, when the cover (23) passes the intermediate position, the cover (23) rotates towards the open position under the gravity of the counterweight. During the rotation of the cover (23) from the open position to the closed position, when the cover (23) passes the intermediate position, the cover (23) rotates towards the closed position under its own gravity.

6. The shielding device for a salt block sampling system according to claim 1, characterized in that: A locking assembly (25) is provided between the shielding container (21) and the cover (23). The locking assembly (25) connects the shielding container (21) and the cover (23) when the cover (23) is in the closed position, so as to restrict the cover (23) from rotating to the open position.

7. The shielding device for a salt block sampling system according to claim 2, characterized in that: The cover (23) includes a cover plate (231) and a cup lid (232). The cover plate (231) is connected to the shielding tank (21) and can rotate relative to the shielding tank (21). The cup lid (232) and the linkage are both connected to the cover plate (231). The cup lid (232) and the linkage are distributed at intervals in a direction perpendicular to the rotation axis of the cover plate (231), and the linkage is located between the rotation axis of the cup lid (232) and the rotation axis of the cover plate (231).

8. A sample transfer cart, characterized in that: The system includes a vehicle body (1) and a shielding device for a salt block sampling system as described in any one of claims 1-7, the vehicle body (1) being capable of traveling on the ground, and the shielding device for the salt block sampling system being mounted on the vehicle body (1).

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