X-ray detection device based on ionization chamber

Abstract

The utility model provides an ionization chamber-based X-ray detection device, which relates to the field of detection devices and comprises a mounting plate, an ionization chamber, an X-ray head and an angle adjusting component used for driving the angle of the mounting plate to be adjusted, and a rotating mechanism used for driving the ionization chamber to rotate is arranged on the mounting plate. The rotating angle of the rotating mechanism is perpendicular to the rotating angle of the angle adjusting assembly, the X-ray head is fixedly installed in the ionization chamber, the angle adjusting assembly comprises a fixed bottom plate, a telescopic driving part, a [-shaped push rod, a supporting plate and a connecting plate, and the [-shaped push rod is driven to slide in a guiding groove by starting the telescopic driving part; when the transverse rod moves, the protruding block is pushed to rotate, the transverse rod slides in the driving groove, the transverse rod pushes the connecting plate and the X-ray head on the mounting plate to conduct angle adjustment, the rotating angle of the rotating mechanism is perpendicular to the rotating angle of the angle adjusting assembly, the detection range of the X-ray head can be widened, and images can be conveniently projected at different angles.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to an X-ray detection device based on an ionization chamber. Background Art

[0002] An ionization chamber is a detector that uses the ionization effect of ionizing radiation to measure ionizing radiation. It is also called an ion chamber, and is called an ionization box in Taiwan and other places. An ionization chamber consists of electrodes at different potentials and a medium between them. Ionizing radiation produces ionized ion pairs in the medium. Under the action of the electric field, positive and negative ions drift to the negative and positive electrodes respectively, forming an ionization current. Since the ionization current is proportional to the intensity of the radiation, the intensity of the ionizing radiation can be obtained by measuring the current. In the X-ray absorption fine structure experiment in fluorescence mode, ordinary fluorescence ionization chambers are often used to measure the fluorescence signal of the element to be measured in the sample.

[0003] The existing X-ray detection device includes a base, a column, a lifting mechanism, a detector body, and an X-ray emitter. The column is installed on the top of the base, the lifting mechanism is installed inside the column, and the detector body is transmission-connected to the lifting mechanism. The position of the detector body is adjusted by the lifting mechanism. In practical applications, it is often encountered that the detected object is inconvenient to move, which is troublesome for shooting and it is difficult to obtain projection images at different angles.

[0004] Therefore, it is necessary to provide a new X-ray detection device based on an ionization chamber to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an X-ray detection device based on an ionization chamber.

[0006] The X-ray detection device based on the ionization chamber provided by the utility model comprises a mounting plate, an ionization chamber, an X-ray head and an angle adjustment component for driving the mounting plate to adjust the angle, wherein the mounting plate is provided with a rotating mechanism for driving the ionization chamber to rotate, the rotating mechanism and the rotation angle of the angle adjustment component are perpendicular to each other, and the X-ray head is fixedly installed in the ionization chamber;

[0007] The angle adjustment assembly includes a fixed base plate, a telescopic driving member, a 匚-shaped push rod, a support plate and a connecting plate, the telescopic driving member and the support plate are respectively fixedly mounted on the fixed base plate, the pushing end of the telescopic driving member is fixedly connected to the 匚-shaped push rod, guide grooves are provided on both sides of the support plate, a cross bar is passed through one side of the 匚-shaped push rod, one end of the connecting plate extends outward and is fixedly connected with a protrusion, a driving groove is provided on one side of the protrusion, two ends of the cross bar are respectively passed through the driving groove and the guiding groove, and the end of the connecting plate away from the protrusion is fixedly connected to the bottom of the mounting plate.

[0008] Further, the rotation mechanism includes a slide rail, a carrier plate, a gear, and a driving member for driving the gear to rotate. The slide rail and the driving member are respectively fixedly installed on the mounting plate. The carrier plate is slidably installed on the surface of the slide rail, and the gear is rotatably installed on the mounting plate.

[0009] Further, the driving member includes a push electric cylinder and a rack. The push electric cylinder is fixedly installed on the mounting plate. One end of the push electric cylinder is fixedly connected to one end of the rack. One side of the rack is fixedly installed at the bottom of the carrier plate, and the rack meshes with the gear.

[0010] Further, the telescopic driving member includes a power cylinder. The power cylinder is fixedly installed on the fixed bottom plate, and the pushing end of the power cylinder is fixedly connected to the U-shaped push rod.

[0011] Further, a connecting seat is fixed at the bottom of the ionization chamber, and the connecting seat is fixedly installed on the top of the gear.

[0012] Further, a through groove for the connecting seat to pass through is formed on the carrier plate.

[0013] Compared with the related art, the X-ray detection device based on an ionization chamber provided by the present utility model has the following beneficial effects:

[0014] By starting the telescopic driving member to drive the U-shaped push rod to slide in the guiding groove, when the cross bar moves, it will push the convex block to rotate, and the cross bar will slide in the driving groove. The cross bar pushes the connecting plate and the X-ray head on the mounting plate to adjust the angle. The rotation angles of the rotation mechanism and the angle adjustment component are perpendicular to each other, which can improve the detection range of the X-ray head and facilitate projection images at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the X-ray detection device based on an ionization chamber provided by the present utility model;

[0016] Figure 2 is Figure 1 an enlarged schematic diagram of the part A shown in;

[0017] Figure 3 is a schematic diagram of the structure of the rotation mechanism provided by the present utility model;

[0018] Figure 4 is an exploded schematic diagram of the angle adjustment component provided by the present utility model.

[0019] Reference numerals in the figure: 1, mounting plate; 2, ionization chamber; 3, X-ray head; 4, fixed bottom plate; 5, U-shaped push rod; 6, support plate; 7, connecting plate; 8, guiding groove; 9, cross bar; 10, convex block; 11, driving groove; 12, slide rail; 13, bearing plate; 14, gear; 15, pushing electric cylinder; 16, rack; 17, power cylinder; 18, connecting seat. Specific embodiments

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , wherein Figure 1 is the overall structural schematic diagram of the X-ray detection device based on the ionization chamber provided by the present utility model; Figure 2 is Figure 1 the enlarged structural schematic diagram of the position A shown in; Figure 3 is the structural schematic diagram of the rotation mechanism provided by the present utility model; Figure 4 is the exploded structural schematic diagram of the angle adjustment assembly provided by the present utility model.

[0022] During the specific implementation process, as Figures 1 - 4 shown, the X-ray detection device includes a mounting plate 1, an ionization chamber 2, an X-ray head 3, and an angle adjustment assembly for driving the angle adjustment of the mounting plate 1. A rotation mechanism for driving the rotation of the ionization chamber 2 is provided on the mounting plate 1. The rotation angles of the rotation mechanism and the angle adjustment assembly are perpendicular to each other. The X-ray head 3 is fixedly installed in the ionization chamber 2.

[0023] It should be noted that when the X-ray emitted by the X-ray head 3 passes through the ionization chamber 2, ionization will occur in the gas medium to form positive and negative ion pairs. Positive and negative electrodes are provided inside the ionization chamber 2. By applying a certain voltage, the formed ions move towards the positive and negative electrodes respectively under the action of the electric field to form an ion current. The magnitude of this current is proportional to the intensity of the X-ray entering the ionization chamber 2. Therefore, the dose or intensity of the X-ray can be determined by measuring the current.

[0024] The angle adjustment assembly includes a fixed bottom plate 4, a telescopic driving member, a U-shaped push rod 5, a support plate 6, and a connecting plate 7. The telescopic driving member and the support plate 6 are respectively fixedly installed on the fixed bottom plate 4. The advancing end of the telescopic driving member is fixedly connected to the U-shaped push rod 5. Guiding grooves 8 are provided on both sides of the support plate 6. A cross bar 9 is penetrated through one side of the U-shaped push rod 5. One end of the connecting plate 7 extends outwards and is fixedly connected with a convex block 10. A driving groove 11 is provided on one side of the convex block 10. Both ends of the cross bar 9 are respectively penetrated through the driving groove 11 and the guiding groove 8. The end of the connecting plate 7 far from the convex block 10 is fixedly connected to the bottom of the mounting plate 1.

[0025] It should be noted that the telescopic driving member includes a power cylinder 17, the power cylinder 17 is fixedly installed on the fixed bottom plate 4, and the propulsion end of the power cylinder 17 is fixedly connected to the U-shaped push rod 5.

[0026] In a specific embodiment, referring to Figure 3 As shown, the rotating mechanism includes a slide rail 12, a bearing plate 13, a gear 14, and a driving member for driving the rotation of the gear 14. The slide rail 12 and the driving member are respectively fixedly installed on the mounting plate 1. The bearing plate 13 is slidably installed on the surface of the slide rail 12, and the gear 14 is rotatably installed on the mounting plate 1;

[0027] Specifically, the driving member includes a pushing electric cylinder 15 and a rack 16. The pushing electric cylinder 15 is fixedly installed on the mounting plate 1. One end of the pushing electric cylinder 15 is fixedly connected to one end of the rack 16. One side of the rack 16 is fixedly installed at the bottom of the bearing plate 13, and the rack 16 meshes with the gear 14. A connecting seat 18 is fixed to the bottom of the ionization chamber 2, and the connecting seat 18 is fixedly installed on the top of the gear 14. A through groove for the connecting seat 18 to pass through is formed on the bearing plate 13. By starting the pushing electric cylinder 15 to drive the rack 16 to move, the rack 16 drives the gear 14 to rotate, thereby enabling the ionization chamber 2 and the X-ray head 3 to be adjusted in angle. In order to increase the stability of the movement of the rack 16, the movement of the rack 16 drives the bearing plate 13 to slide on the slide rail 12.

[0028] The working principle provided by the present utility model is as follows: By starting the power cylinder 17 to drive the U-shaped push rod 5 to slide in the guiding groove 8, when the cross bar 9 moves, it will push the convex block 10 to rotate, and the cross bar 9 will slide in the driving groove 11. The cross bar 9 pushes the connecting plate 7 and the X-ray head 3 on the mounting plate 1 to adjust the angle. By starting the pushing electric cylinder 15 to drive the rack 16 to move, the rack 16 drives the gear 14 to rotate, thereby enabling the ionization chamber 2 and the X-ray head 3 to be adjusted in angle. In order to increase the stability of the movement of the rack 16, the movement of the rack 16 drives the bearing plate 13 to slide on the slide rail 12.

[0029] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0030] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. An X-ray detection device based on an ionization chamber, characterized in that: It includes a mounting plate (1), an ionization chamber (2), an X-ray head (3), and an angle adjustment component for driving the angle adjustment of the mounting plate (1). A rotation mechanism for driving the rotation of the ionization chamber (2) is provided on the mounting plate (1). The rotation angle of the rotation mechanism is perpendicular to that of the angle adjustment component. The X-ray head (3) is fixedly installed in the ionization chamber (2). The angle adjustment component includes a fixed bottom plate (4), a telescopic driving member, a U-shaped push rod (5), a support plate (6), and a connecting plate (7). The telescopic driving member and the support plate (6) are respectively fixedly installed on the fixed bottom plate (4). The pushing end of the telescopic driving member is fixedly connected to the U-shaped push rod (5). Guide grooves (8) are provided on both sides of the support plate (6). A cross bar (9) is inserted through one side of the U-shaped push rod (5). One end of the connecting plate (7) extends outward and is fixedly connected to a convex block (10). A driving groove (11) is provided on one side of the convex block (10). Both ends of the cross bar (9) are respectively inserted into the driving groove (11) and the guide groove (8). The end of the connecting plate (7) away from the convex block (10) is fixedly connected to the bottom of the mounting plate (1).

2. The X-ray detection device based on the ionization chamber according to claim 1, characterized in that: The rotation mechanism includes a slide rail (12), a bearing plate (13), a gear (14), and a driving member for driving the rotation of the gear (14). The slide rail (12) and the driving member are respectively fixedly installed on the mounting plate (1). The bearing plate (13) is slidably installed on the surface of the slide rail (12). The gear (14) is rotatably installed on the mounting plate (1).

3. The X-ray detection device based on the ionization chamber according to claim 2, characterized in that: The driving member includes a push electric cylinder (15) and a rack (16). The push electric cylinder (15) is fixedly installed on the mounting plate (1). One end of the push electric cylinder (15) is fixedly connected to one end of the rack (16). One side of the rack (16) is fixedly installed on the bottom of the bearing plate (13), and the rack (16) meshes with the gear (14).

4. The X-ray detection device based on the ionization chamber according to claim 3, characterized in that: The telescopic driving member includes a power cylinder (17). The power cylinder (17) is fixedly installed on the fixed bottom plate (4), and the pushing end of the power cylinder (17) is fixedly connected to the U-shaped push rod (5).

5. The X-ray detection device based on the ionization chamber according to claim 4, characterized in that: A connection seat (18) is fixed to the bottom of the ionization chamber (2), and the connection seat (18) is fixedly installed on the top of the gear (14).

6. The X-ray detection device based on the ionization chamber according to claim 5, characterized in that: A through groove for the connection seat (18) to pass through is provided on the bearing plate (13).

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