An irradiation test irradiation chamber

Abstract

A kind of irradiation test is used irradiation box, including box and box door, the box front and rear side are hinged with box door, the support plate separates the cavity of box into upper placement cavity and lower drive cavity, four placement racks and drive assembly are equipped in the placement cavity, the drive assembly is set on the top of support plate, the placement rack is set on drive assembly, motor is equipped in the drive cavity, the motor output end penetrates support plate and is connected with drive assembly.As a kind of preferred technical scheme, the placement rack includes stand, several placement discs and several baffles, the several placement discs are sequentially fixed on the stand from top to bottom, the top of stand is rotatably connected with the top of box, the bottom of stand is fixed on drive assembly, the edge of placement disc is provided with baffle.The irradiation uniformity of product is improved.

Description

Technical Field

[0001] This utility model relates to the field of irradiation equipment technology, specifically to an irradiation box for irradiation testing. Background Technology

[0002] Irradiation testing is a technique that simulates a radiation environment to subject materials, devices, or systems to long-term exposure testing, aiming to evaluate their performance degradation, structural integrity, and functional reliability under radiation. This technology is widely used in the nuclear industry, aerospace, medical equipment, and high-reliability electronics fields. Examples include verifying the radiation swelling resistance of nuclear reactor components, the single-event resistance of spacecraft electronic components, and the sterilization compatibility of medical packaging materials. Currently used devices include the BFT-IV60Co γ-ray radiation device, whose radiation source is a single-plate frame structure. A hydraulic system is used to raise and lower the radiation source. Samples are placed into the irradiation chamber to receive radiation, and after sterilization, they are removed from the irradiation chamber.

[0003] Existing irradiation chambers have a fixed structure, with samples stacked in layers inside. Samples that are blocked from receiving gamma rays cannot be irradiated, resulting in uneven irradiation levels at different locations and low utilization of gamma rays. To address these problems, this invention proposes an irradiation chamber for irradiation experiments that improves irradiation uniformity. Utility Model Content

[0004] The purpose of this invention is to provide an irradiation chamber for irradiation testing, which improves the irradiation uniformity of samples.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An irradiation chamber for irradiation testing includes a chamber body and a door. The door is hinged to both the front and rear sides of the chamber body. A support plate divides the inner cavity of the chamber into an upper placement chamber and a lower drive chamber. The placement chamber is provided with four placement racks and a drive assembly. The drive assembly is located on the top of the support plate, and the placement racks are mounted on the drive assembly. The top of the placement racks is rotatably connected to the top of the chamber body. A motor is provided in the drive chamber, and the output end of the motor passes through the support plate and is connected to the drive assembly.

[0007] As a preferred technical solution, the placement rack includes support columns, a plurality of placement trays and a plurality of baffles. The plurality of placement trays are arranged sequentially from top to bottom. The bottom of the lowest placement tray is fixedly mounted on the drive assembly. The bottom of the remaining placement trays is fixedly provided with support columns. The bottom of the plurality of support columns is provided with threaded sections, and the top of the plurality of placement trays is provided with threaded holes that match the threaded sections.

[0008] As a preferred technical solution, the edge of the placement tray is provided with a baffle.

[0009] As a preferred technical solution, the placement tray is square, and the baffles are respectively disposed on the four sides of the placement tray, with the baffles located on the outer side of the side wall of the placement tray.

[0010] As a preferred technical solution, one end of the baffle is rotatably connected to the side of the placement tray via a rotating shaft, and the other end of the baffle is detachably connected to the side of the placement tray via a pin. The baffle has a through hole, and the placement tray has a pin hole that matches the position of the through hole. The pin passes through the through hole and is inserted into the pin hole to fix the baffle on the placement tray.

[0011] As a preferred technical solution, the drive assembly includes a first gear and four second gears. The first gear and four second gears are rotatably mounted on a support plate. The four second gears are arranged around the first gear and mesh with the first gear. The top of the second gear is fixedly connected to a placement plate, and the first gear is fixedly connected to the motor output end.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. In this utility model, four placement racks are provided and placed at the four corners of the box. The driving component can drive the four placement racks to rotate, so that the sample located in the center of the box can rotate to the outside and closer to the radiation source. The continuous rotation allows the sample in each place to get close to the radiation source to receive irradiation, which solves the problem of the sample located in the center of the box receiving less irradiation and improves the uniformity of sample irradiation.

[0014] 2. In this utility model, the placement rack consists of several placement trays and support columns. The number of placement trays can be added or reduced according to actual needs. The uppermost placement tray does not have a support column installed in the middle, so it can place large-volume samples. The remaining placement trays can place small-volume samples around the support columns, which can adapt to the irradiation of samples of different volumes and quantities.

[0015] 3. In this utility model, a unilaterally rotatable baffle is provided. The baffle has two positions: one that blocks the edge of the placement tray and the other that does not. When the baffle does not block the edge of the placement tray, it is convenient to place the sample on the placement tray. When the baffle blocks the edge of the placement tray, it can prevent the sample on the placement tray from falling off. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present utility model. Figure 1 ;

[0019] Figure 3 This is a cross-sectional view of the present utility model. Figure 2 ;

[0020] The reference numerals in the attached figures are as follows:

[0021] 1-Box body, 2-Box door, 3-Support plate, 4-Support column, 41-Threaded section, 5-Placement plate, 51-Threaded hole, 6-Baffle, 7-Pin, 8-First gear, 9-Second gear, 10-Motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the sample is in use. These are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example

[0026] like Figure 1-3 As shown, an irradiation chamber for irradiation testing includes a chamber body 1 and a door 2. The door 2 is hinged to both the front and rear sides of the chamber body 1. A support plate 3 divides the inner cavity of the chamber body 1 into an upper placement cavity and a lower drive cavity. The placement cavity is provided with four placement racks and a drive assembly. The drive assembly is located on the top of the support plate 3, and the placement racks are located on the drive assembly. A motor 10 is provided in the drive cavity, and the output end of the motor 10 passes through the support plate 3 and is connected to the drive assembly.

[0027] It is worth noting that the sample to be irradiated and sterilized is carried into the irradiation chamber through the enclosure 1 for irradiation testing. The irradiation chamber contains a radiation source, and the sample to be irradiated and sterilized is placed on four racks. Enclosure 1 has doors 2 on both the front and back sides to facilitate placing the sample on the four racks. A motor 10 drives a drive assembly, which in turn rotates the four racks, allowing the sample located at the center of enclosure 1 to rotate to the outside to receive irradiation. Specifically, the drive assembly rotates the four racks, and the motor 10 is a radiation-shielded motor 10, capable of counteracting the effects of the radiation source on electronic equipment.

[0028] It should be noted that the radiation source has a single-plate frame structure and is stored in the source well when not in use. When it is needed, it is lifted out of the water using a special lifting device. The radiation source can emit gamma rays to irradiate and sterilize the samples in the chamber 1. Therefore, the total amount of radiation received by the samples closer to the radiation source will be higher than that received by the samples farther away from the radiation source.

[0029] In some feasible embodiments, the placement frame includes a support column 4, a plurality of placement discs 5 and a plurality of baffles 6. The plurality of placement discs 5 are arranged sequentially from top to bottom. The bottom of the lowest placement disc 5 is fixedly mounted on the drive assembly, and the bottom of the remaining placement discs 5 is fixedly mounted on the support column 4. The bottom of the plurality of support columns 4 is provided with threaded sections 41, and the top of the plurality of placement discs 5 is provided with threaded holes 51 that match the threaded sections. By screwing the threaded sections 41 at the bottom of the support column 4 into the threaded holes 51, the plurality of placement discs 5 can be installed from bottom to top, and the number of placement discs 5 can be increased or decreased according to actual needs for irradiation.

[0030] Furthermore, since the uppermost placement tray 5 does not have a support column 4 installed in the middle, the uppermost placement tray 5 can hold large-volume samples, while the remaining placement trays 5 can hold small-volume samples around the support column 4.

[0031] In some feasible embodiments, the edge of the placement tray 5 is provided with a baffle 6, which allows workers to open the front and rear doors 2 to place samples on the four placement racks. The baffle 6 can prevent samples from falling off the placement tray 5.

[0032] In some feasible embodiments, the placement tray 5 is square, and four baffles 6 are provided, located on the four sides of the placement tray 5 respectively. The baffles 6 are located on the outer side of the placement tray 5, and one end of the baffle 6 is rotatably connected to the side wall of the placement tray 5 through a horizontally set pivot, so that the position of the other end of the baffle 6 is variable, realizing the switching between the position that blocks the edge of the placement tray 5 and the position that does not block the edge of the placement tray 5.

[0033] To ensure that the baffle 6 is stably positioned at the edge of the placement tray 5, a pin 7 is also provided in this embodiment. Specifically, the other end of the baffle 6 is detachably connected to the side of the placement tray 5 via the pin 7. The baffle 6 has a through hole, and the placement tray 5 has a pin hole that matches the position of the through hole. The pin 7 passes through the through hole and is inserted into the pin hole to fix the baffle 6 to the placement tray 5. When a sample needs to be placed, the pin 7 is removed, and the baffle 6 rotates downward along the pivot axis without obstructing the edge of the placement tray 5, making it convenient for workers to place samples onto the placement tray 5. After placement, the baffle 6 is manually rotated upward to align the through hole with the pin hole, and then the pin 7 is inserted to fix it.

[0034] In some feasible embodiments, the drive assembly includes a first gear 8 and four second gears 9, which are rotatably mounted on the support plate 3. The four second gears 9 are arranged around the first gear 8 and mesh with it. The tops of the second gears 9 are fixedly connected to the bottom of the placement tray 5, and the first gear 8 is fixedly connected to the output end of the motor 10. The motor 10 drives the first gear 8 to rotate, which in turn drives the four second gears 9 to rotate. The second gears 9 then drive the bottommost placement tray 5 to rotate, thereby driving all the placement trays 5 to rotate, so that the four placement trays can be irradiated evenly.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The various embodiments of this disclosure have been described in detail above. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description. The scope of this disclosure is defined by the appended claims.

Claims

1. An irradiation chamber for irradiation testing, comprising a chamber body (1) and a door (2), wherein the chamber body (1) is hinged with a door (2) on both the front and rear sides, characterized in that, The support plate (3) divides the inner cavity of the box (1) into an upper placement cavity and a lower driving cavity. The placement cavity is provided with four placement racks and a driving assembly. The driving assembly is located on the top of the support plate (3), and the placement racks are located on the driving assembly. The driving cavity is provided with a motor (10). The output end of the motor (10) passes through the support plate (3) and is connected to the driving assembly.

2. The irradiation chamber for irradiation testing according to claim 1, characterized in that, The placement rack includes a support column (4), several placement trays (5) and several baffles (6). The several placement trays (5) are arranged sequentially from top to bottom. The bottom of the lowest placement tray (5) is fixedly mounted on the drive assembly. The bottom of the remaining placement trays (5) is fixedly provided with a support column (4). The bottom of the several support columns (4) is provided with a threaded section (41). The top of the several placement trays (5) is provided with a threaded hole (51) that matches the threaded section.

3. An irradiation chamber for irradiation testing according to claim 2, characterized in that, The edge of the placement tray (5) is provided with a baffle (6).

4. An irradiation chamber for irradiation testing according to claim 3, characterized in that, The placement tray (5) is square, and the baffles (6) are respectively arranged on the four sides of the placement tray (5). The baffles (6) are located on the outside of the side wall of the placement tray (5).

5. An irradiation chamber for irradiation testing according to claim 3, characterized in that, One end of the baffle (6) is rotatably connected to the side of the placement tray (5) via a pivot, and the other end of the baffle (6) is detachably connected to the side of the placement tray (5) via a pin (7). The baffle (6) has a through hole, and the placement tray (5) has a pin hole that matches the position of the through hole. The pin (7) passes through the through hole and is inserted into the pin hole to fix the baffle (6) on the placement tray (5).

6. An irradiation chamber for irradiation testing according to claim 1, characterized in that, The drive assembly includes a first gear (8) and four second gears (9). The first gear (8) and four second gears (9) are rotatably mounted on the support plate (3). The four second gears (9) are arranged around the first gear (8). The four second gears (9) mesh with the first gear (8). The top of the second gear (9) is fixedly connected to the placement plate (5). The first gear (8) is fixedly connected to the output end of the motor (10).

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