Protective shielding device for plate radiation accelerator

Abstract

The utility model discloses a protective shielding device for a plate radiation accelerator, which relates to the technical field of plate radiation, and comprises a frame and a shielding cavity, the shielding cavity is fixedly mounted at the top end of the frame, a plurality of cylinders are uniformly and fixedly mounted at the bottom end in the shielding cavity, and the cylinders are fixedly mounted at the bottom end in the shielding cavity. The two sets of guide wheels are arranged, the two hydraulic telescopic rods are used for driving the guide wheels to be tightly attached to a plate, a spring buffer and a buffer rubber pad are arranged, the two hydraulic telescopic rods are used for driving the guide wheels to be tightly attached to the plate, and the two hydraulic telescopic rods are used for driving the guide wheels to be tightly attached to the plate. According to the plate pushing device, the clamping force of the two hydraulic telescopic rods is prevented from being too large to damage plates, when the plates are pushed, the plates can drive the two sets of guide wheels to rotate, the plates can be conveniently moved while the guide requirement is met, the guide stability is guaranteed, and the practicability of the plate pushing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate radiation, and particularly relates to a protection and shielding device for a plate radiation accelerator. Background Art

[0002] During the electron beam irradiation process, when the electron beam hits the irradiated object or the inner wall of the channel, harmful x-rays to the human body will be generated in the irradiation area. X-rays belong to ionizing radiation, which is different from visible light and ultraviolet light (UV) of non-ionizing radiation. Its interaction with matter is complex and has laws such as reflection and transmission at the interface. In a continuously producible production line, how to shield the x-rays generated in the irradiation area to a safe level is the primary safety issue in the production line design.

[0003] When the accelerator is used for flat and intermittent materials such as plates, a flat channel needs to be designed at the inlet and outlet of the accelerator, and a device that can dynamically prevent ray leakage is required. It can not only irradiate the plate at a certain speed but also keep the entire irradiation section in a safe and leak-free state. In the prior art, before the plate enters the accelerator, usually two groups of baffles are used to limit the position of the plate to facilitate the plate to enter the accelerator. However, after the baffle contacts the plate, it will generate friction on the plate, which will cause resistance to the movement of the plate and is inconvenient for the movement of the plate, so the practicability is relatively low. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a protection and shielding device for a plate radiation accelerator, which can solve the problem that in the prior art, before the plate enters the accelerator, usually two groups of baffles are used to limit the position of the plate to facilitate the plate to enter the accelerator. However, after the baffle contacts the plate, it will generate friction on the plate, which will cause resistance to the movement of the plate and is inconvenient for the movement of the plate, so the practicability is relatively low.

[0006] (2) Technical Solutions

[0007] To achieve the above purpose, the utility model provides the following technical solutions: A protection and shielding device for a plate radiation accelerator, including a frame and a shielding cavity. The shielding cavity is fixedly installed at the top of the frame. A plurality of cylinders are uniformly and fixedly installed at the bottom end inside the shielding cavity, and a gate plate is fixedly installed on the telescopic end of each of the plurality of cylinders.

[0008] Among them, notch openings are provided on the shielding plate at the upper end inside the shielding cavity corresponding to the positions of the plurality of gate plates, and guide rods are fixedly installed on the left side of the shielding cavity corresponding to the plurality of gate plates.

[0009] Among them, idler rollers are fixedly installed at corresponding positions between several cylinders at the inner bottom end of the shielding cavity;

[0010] Among them, a photoelectric switch is fixedly installed at the bottom side of the left end of the shielding cavity, a feed bin is fixedly installed at the left end of the shielding cavity, and a sheet is slidably installed inside the feed bin.

[0011] Preferably, hydraulic telescopic rods are fixedly installed at the middle positions of the front and rear sides inside the feed bin, U-shaped plates are fixedly installed at the telescopic ends of the two hydraulic telescopic rods, rectangular grooves are formed on the upper and lower surfaces inside the two U-shaped plates, and guiding devices are arranged inside the two rectangular grooves corresponding to each other.

[0012] Preferably, the guiding device includes two moving plates, the two moving plates are respectively slidably installed inside the two rectangular grooves, three fixed shafts are uniformly fixedly installed on the opposite surfaces of the two moving plates, and guiding wheels are rotatably installed on the outer surfaces of the three fixed shafts.

[0013] Preferably, spring buffers are fixedly installed on the inner walls of the two rectangular grooves at positions corresponding to the three fixed shafts, buffer rubber pads are fixedly installed at the telescopic ends of the three spring buffers on the upper and lower sides, and one end of the buffer rubber pad away from the spring buffer is fixedly installed on the moving plate.

[0014] Preferably, T-shaped chutes are formed on the left and right sides of the inner bottom surface of the feed bin, T-shaped sliders are slidably installed inside the two T-shaped chutes at positions corresponding to the two U-shaped plates, and the tops of the four T-shaped sliders are respectively fixedly connected to the front and rear sides of the bottom ends of the two U-shaped plates.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) For the protection and shielding device for the sheet radiation accelerator, by arranging two groups of guiding wheels, using two hydraulic telescopic rods to drive the guiding wheels to closely adhere to the sheet, and setting spring buffers and buffer rubber pads, it is avoided that the excessive clamping force of the two hydraulic telescopic rods damages the sheet. When pushing the sheet, the sheet can drive the two groups of guiding wheels to rotate, meeting the guiding requirements while facilitating the movement of the sheet, and ensuring the stability of guiding, thereby improving the practicability of the device.

[0018] (2) For the protective shielding device of the sheet radiation accelerator, when the rear edge of the sheet passes through the first shutter, this shutter rises, and the subsequent shutters rise in sequence according to the set time points, so that during the entire operation of the sheet, at least one shutter is in the raised state, thus ensuring that the rays will not leak. After the sheet is irradiated by the accelerator, it enters the shielding device at the rear end. The structure and principle of the shielding device at the rear end are the same, so that the sheet can continuously undergo irradiation to meet the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments:

[0020] Figure 1 is a schematic structural diagram of a protective shielding device for a sheet radiation accelerator of the present invention;

[0021] Figure 2 is a schematic partial structural diagram of the present invention;

[0022] Figure 3 is a schematic partial sectional view of the feed bin of the present invention;

[0023] Figure 4 is a schematic side sectional view of the feed bin of the present invention;

[0024] Figure 5 is Figure 4 an enlarged schematic view of part A in

[0025] Reference numerals: 1, frame; 2, cylinder; 3, photoelectric switch; 4, sheet; 5, roller; 6, guide rod; 7, shutter; 8, shielding cavity; 9, feed bin; 10, hydraulic telescopic rod; 11, U-shaped plate; 12, rectangular groove; 13, moving plate; 14, fixed shaft; 15, guide wheel; 16, spring buffer; 17, buffer rubber pad; 18, T-shaped chute; 19, T-shaped slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0027] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the orientations or positional relationships indicated by up, down, front, back, left, right, etc., they are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, "greater than", "less than", "exceeding", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0030] Please refer to Figures 1-5 , the present utility model provides a technical solution: a protection and shielding device for a plate radiation accelerator, including a frame 1 and a shielding cavity 8. The shielding cavity 8 is fixedly installed at the top of the frame 1. A plurality of cylinders 2 are uniformly and fixedly installed at the inner bottom end of the shielding cavity 8, and a shutter 7 is fixedly installed on the telescopic end of each of the plurality of cylinders 2;

[0031] Among them, notches are opened on the shielding plate at the upper end inside the shielding cavity 8 at positions corresponding to the plurality of shutters 7, and guide rods 6 are fixedly installed on the left side of the plurality of shutters 7 inside the shielding cavity 8;

[0032] Among them, roller supports 5 are fixedly installed at the inner bottom end of the shielding cavity 8 at positions corresponding to between the plurality of cylinders 2;

[0033] Among them, a photoelectric switch 3 is fixedly installed at the bottom side of the left end of the shielding cavity 8, a feeding bin 9 is fixedly installed at the left end of the shielding cavity 8, a plate 4 is slidably installed inside the feeding bin 9. When using this device, before the plate 4 enters the front end of the accelerator, the shutter 7 inside the entire cavity is in the raised state. When the front edge of the plate 4 runs to the position of the photoelectric switch 3, the cylinder 2 starts to receive a signal, and then the cylinder 2 descends according to the set time sequence, allowing the plate 4 to smoothly enter the channel. When the rear edge of the plate 4 passes through the first shutter 7, this shutter 7 rises, and the subsequent shutters 7 then rise in sequence according to the set time points, so that during the entire running process of the plate 4, at least one shutter 7 is in the raised state, thereby ensuring that the rays will not leak. After the plate 4 is irradiated by the accelerator, it enters the shielding device at the rear end. The structure and principle of the shielding device at the rear end are the same, so that the plate can continuously undergo irradiation to meet the production requirements.

[0034] Furthermore, hydraulic telescopic rods 10 are fixedly installed at the horizontal middle positions on the front and rear sides inside the feeding bin 9. U-shaped plates 11 are fixedly installed on the telescopic ends of the two hydraulic telescopic rods 10. Rectangular grooves 12 are opened on the upper and lower surfaces inside the two U-shaped plates 11, and guiding devices are arranged inside the two rectangular grooves 12 corresponding to each other.

[0035] Furthermore, the guiding device includes two moving plates 13. The two moving plates 13 are correspondingly slidably installed inside the two rectangular grooves 12. Three fixed shafts 14 are evenly fixedly installed on the opposite surfaces of the two moving plates 13. Guide wheels 15 are rotatably installed on the outer surfaces of the three fixed shafts 14.

[0036] Furthermore, spring buffers 16 are fixedly installed on the inner walls of the two rectangular grooves 12 corresponding to the positions of the three fixed shafts 14. Buffer rubber pads 17 are fixedly installed on the telescopic ends of the three spring buffers 16 on the upper and lower sides. One end of the buffer rubber pad 17 away from the spring buffer 16 is fixedly installed on the moving plate 13.

[0037] Furthermore, T-shaped sliding grooves 18 are formed on the left and right sides of the inner bottom surface of the feeding bin 9. T-shaped sliding blocks 19 are slidably installed at the positions corresponding to the two U-shaped plates 11 inside the two T-shaped sliding grooves 18. The tops of the four T-shaped sliding blocks 19 are fixedly connected to the front, rear, left, and right sides of the bottoms of the two U-shaped plates 11 respectively. When using this device, before the sheet 4 enters the front end of the accelerator, it first enters the inside of the feeding bin 9. The sheet 4 is placed on the inner lower surface of the feeding bin 9. Then, the two hydraulic extension rods 10 are started. The extension rods of the two hydraulic extension rods 10 extend to drive the two U-shaped plates 11 to move closer to each other, so that the three guide wheels 15 on the front and rear sides are close to the sheet 4. When the three guide wheels 15 on the left and right sides contact the sheet 4, the two corresponding moving plates 13 move away from each other, causing the spring buffers 16 on the left and right sides to contract. By providing the spring buffers 16 and the buffer rubber pads 17, damage to the sheet 4 caused by excessive clamping force of the two hydraulic extension rods 10 is avoided, and the guide wheels 15 on the left and right sides are tightly attached to the outer surface of the sheet 4, ensuring the stability of the guiding and preventing deviation, which makes it difficult for the sheet to enter the accelerator smoothly, thus improving the practicality of the device.

[0038] Working principle: When using this device, before the sheet 4 enters the front end of the accelerator, it first enters the inside of the feeding bin 9. The sheet 4 is placed on the inner lower surface of the feeding bin 9. Then, the two hydraulic extension rods 10 are started. The extension rods of the two hydraulic extension rods 10 extend to drive the two U-shaped plates 11 to move closer to each other, so that the three guide wheels 15 on the front and rear sides are close to the sheet 4. When the three guide wheels 15 on the left and right sides contact the sheet 4, the two corresponding moving plates 13 move away from each other, causing the spring buffers 16 on the left and right sides to contract. By providing the spring buffers 16 and the buffer rubber pads 17, damage to the sheet 4 caused by excessive clamping force of the two hydraulic extension rods 10 is avoided, and the guide wheels 15 on the left and right sides are tightly attached to the outer surface of the sheet 4, ensuring the stability of the guiding and improving the practicality of the device. When using this device, before the sheet 4 enters the front end of the accelerator, the shutter 7 inside the entire cavity is in the raised state. When the front edge of the sheet 4 reaches the position of the photoelectric switch 3, the cylinder 2 starts to receive a signal. After that, the cylinder 2 descends according to the set time sequence, allowing the sheet 4 to smoothly enter the channel. When the rear edge of the sheet 4 passes the first shutter 7, this shutter 7 rises, and then the subsequent shutters 7 rise in sequence according to the set time points, so that during the entire running process of the sheet 4, at least one shutter 7 is in the raised state, thus ensuring that the rays will not leak. After the sheet 4 is irradiated by the accelerator, it enters the shielding device at the rear end. The structure and principle of the shielding device at the rear end are the same. In this way, the sheet can continuously undergo irradiation to meet the production requirements.

[0039] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A protective shielding device for a plate radiation accelerator, comprising a frame (1) and a shielding cavity (8), characterized in that: The shielding cavity (8) is fixedly mounted on the top of the frame (1), a plurality of cylinders (2) are evenly fixedly mounted on the inner bottom of the shielding cavity (8), and gate plates (7) are fixedly mounted on the telescopic ends of the plurality of cylinders (2); Wherein, slots are provided on the upper shielding plate inside the shielding cavity (8) at positions corresponding to the plurality of gate plates (7), and guide rods (6) are fixedly installed on the left sides of the plurality of gate plates (7) inside the shielding cavity (8); Wherein, rollers (5) are fixedly installed at the positions between the inner bottom end of the shielding cavity (8) corresponding to the plurality of cylinders (2); A photoelectric switch (3) is fixedly mounted on the bottom left end of the shielding cavity (8), a feed bin (9) is fixedly mounted on the left end of the shielding cavity (8), and a plate (4) is slidably mounted inside the feed bin (9).

2. The protective shielding device for a plate radiation accelerator according to claim 1, characterized in that: Hydraulic telescopic rods (10) are fixedly installed at the lateral middle positions of the front and rear sides of the feed bin (9), and U-shaped plates (11) are fixedly installed on the telescopic ends of the two hydraulic telescopic rods (10). Rectangular grooves (12) are provided on the upper and lower surfaces of the two U-shaped plates (11), and guide devices are provided inside the two corresponding rectangular grooves (12) above and below.

3. The protective shielding device for a plate radiation accelerator according to claim 2, characterized in that: The guide device comprises two movable plates (13), the two movable plates (13) are slidably mounted in two rectangular grooves (12) respectively, three fixed shafts (14) are evenly fixedly mounted on opposite surfaces of the two movable plates (13), and guide wheels (15) are rotatably mounted on the outer surfaces of the three fixed shafts (14).

4. The protective shielding device for a plate radiation accelerator according to claim 3, characterized in that: Spring buffers (16) are fixedly mounted on the inner walls of the two rectangular grooves (12) at positions corresponding to the three fixed shafts (14), and buffer rubber pads (17) are fixedly mounted on the telescopic ends of the three spring buffers (16) on the upper and lower sides, and one end of the buffer rubber pad (17) away from the spring buffer (16) is fixedly mounted on the moving plate (13).

5. The protective shielding device for a plate radiation accelerator according to claim 1, characterized in that: The inner bottom surface of the feed bin (9) is provided with T-shaped slide grooves (18) on both sides, and T-shaped sliders (19) are slidably installed at positions corresponding to the two U-shaped plates (11) inside the two T-shaped slide grooves (18), and the top ends of the four T-shaped sliders (19) are fixedly connected to the front and rear sides of the bottom ends of the two U-shaped plates (11) respectively.

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