Combined assembly type collimator and detection device

Abstract

The utility model relates to the technical field of collimators, and provides a combined assembly type collimator and a detection device, comprising a shell with a cavity; the lead alloy blocks are arranged in the cavity; the shell comprises a splicing body, and the splicing body comprises two first splicing plates; the two second splice plates, the first splice plate and the second splice plates are sequentially clamped to form an annular plate; the third splice plate is clamped on the upper end surface of the annular plate; the fourth splicing plate is connected to the lower end face of the annular plate in a clamped mode, and the first splicing plate, the second splicing plate, the third splicing plate and the fourth splicing plate are connected in a clamped mode to form a spliced body; the third splice plate is provided with a first through hole, the fourth splice plate is provided with a second through hole, and the first through hole is communicated with the second through hole. According to the technical scheme, the problem that the safety of the X-ray upper collimator is affected due to the fact that sand holes possibly appear on the X-ray upper collimator in casting in the prior art and cannot be observed by naked eyes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of collimators, and in particular to a combined assembled collimator and a detection device. Background Art

[0002] An X-ray collimator is a device used to focus or direct an X-ray beam in a specific direction. It is an integral part of many medical and industrial applications, including medical diagnosis, radiotherapy, material analysis, and nondestructive testing. The design and manufacture of X-ray collimators need to consider many factors, such as the energy of the X-rays, the emission angle, the size and position of the focal spot, etc. In addition, the stability and durability of the collimator also need to be considered to ensure that it can maintain good performance under different working conditions. The X-ray collimators in the prior art are all cast in one piece. The disadvantage of casting is that the X-ray collimator may have sand holes, which cannot be observed by the naked eye, affecting the safety of the X-ray collimator. Utility Model Content

[0003] The utility model proposes a combined assembled collimator and a detection device, which solves the disadvantage of casting in the related art that the X-ray collimator may have sand holes, which cannot be observed by the naked eye and affect the safety of the X-ray collimator.

[0004] The technical solution of the utility model is as follows:

[0005] Combined assembled collimator, including:

[0006] A housing having a cavity;

[0007] A plurality of lead alloy blocks are arranged in the cavity.

[0008] As a further technical solution, the housing includes:

[0009] A spliced ​​body, the spliced ​​body comprising:

[0010] two first splicing plates;

[0011] Two second splicing plates, wherein the first splicing plate and the second splicing plate are sequentially clamped together to form an annular plate;

[0012] A third splicing plate, clamped on the upper end surface of the annular plate;

[0013] The fourth splicing plate is clamped on the lower end surface of the annular plate, and the first splicing plate, the second splicing plate, the third splicing plate and the fourth splicing plate are clamped together to form the splicing body.

[0014] As a further technical solution, the edges of the first splicing plate, the second splicing plate, the third splicing plate and the fourth splicing plate all have annular clamping protrusions, the thickness of the annular clamping protrusions is less than the thickness of the first splicing plate, the second splicing plate, the third splicing plate and the fourth splicing plate, and the annular clamping protrusions have a clamping gap. The annular clamping protrusions of the first splicing plate, the second splicing plate, the third splicing plate and the fourth splicing plate are abutted in sequence and clamped in the clamping gap to form the splicing body after abutment.

[0015] As a further technical solution, the first splicing panel is a trapezoidal structure, the second splicing panel, the third splicing panel and the fourth splicing panel are all rectangular structures, the length of the second splicing panel is equal to the length of the hypotenuse of the first splicing panel, the length of the third splicing panel is equal to the length of the upper base of the first splicing panel, the width of the third splicing panel is equal to the width of the second splicing panel, the length of the fourth splicing panel is equal to the length of the lower base of the first splicing panel, and the width of the fourth splicing panel is equal to the width of the second splicing panel.

[0016] As a further technical solution, the first splicing plate is a trapezoidal structure, the second splicing plate, the third splicing plate and the fourth splicing plate have the same annular clamping protrusion structure, and the upper bottom length of the first splicing plate is smaller than the lower bottom length of the first splicing plate.

[0017] As a further technical solution, the third splicing plate has a first through hole, the fourth splicing plate has a second through hole, and the first through hole is connected to the second through hole.

[0018] As a further technical solution, two housings are also included, and the housings include:

[0019] The main body has a mounting groove, and the splicing body is used to be snapped into the mounting groove;

[0020] A first connecting plate, disposed on the main body, and used to close the mounting groove after two first connecting plates are connected;

[0021] A second connecting plate is arranged on the upper end surface of the main body, the second connecting plate is used to fix the upper end surface of the main body, and the two second connecting plates are used to form a third through hole, the third through hole has the same structure as the first through hole, and the third through hole is connected to the first through hole;

[0022] A third connecting plate is arranged on the lower end surface of the main body, and the third connecting plate is used to fix the lower end surface of the main body. The two third connecting plates are used to form a fourth through hole. The fourth through hole has the same structure as the second through hole, and the fourth through hole is connected to the second through hole.

[0023] A detection device, including a combined assembled collimator, comprising:

[0024] A support frame, on which the upper collimator is arranged, and the support frame has a conveying gap;

[0025] a conveyor belt passing through the conveying gap;

[0026] The receiver is used to be arranged on the frame and located below the conveyor belt, and the receiver is used to receive X-rays.

[0027] The working principle and beneficial effects of the utility model are:

[0028] In the present invention, in order to solve the drawback of casting in the related art that the X-ray upper collimator may have sand holes, which cannot be observed by the naked eye and affect the safety of the X-ray upper collimator, this solution designs multiple lead alloy blocks to replace the integrally cast lead liquid. The lead alloy blocks in this structure are subjected to external pressure, making the structure more compact and preventing the generation of sand holes, which will affect the constraint of the upper collimator on X-rays. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Figure 1 This is a schematic diagram of the structure of the splicing body of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the annular plate of the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the first splicing plate of the utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the second splicing plate of the utility model;

[0034] Figure 5 This is a schematic diagram of the second through hole structure of the utility model;

[0035] Figure 6 This is a schematic diagram of the third through hole structure of the utility model;

[0036] Figure 7 This is a schematic diagram of the fourth through hole structure of the utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the detection device of the utility model;

[0038] In the figure: 1. splicing body, 2. first splicing plate, 3. second splicing plate, 4. second through hole, 5. third splicing plate, 6. annular plate, 7. fourth splicing plate, 8. annular snap-fit ​​protrusion, 9. first through hole, 10. shell, 11. main body, 12. mounting groove, 13. third through hole, 14. fourth through hole, 15. first connecting plate, 16. second connecting plate, 17. third connecting plate, 18. snap-fit ​​gap, 19. shell, 20. support frame, 21. conveyor belt, 22. receiver. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1 to Figure 8 As shown, this embodiment proposes

[0041] Combined assembled collimator, including:

[0042] The housing 19 has a cavity;

[0043] A plurality of lead alloy blocks are arranged in the cavity.

[0044] In this embodiment, in order to solve the drawback of casting in the related art that the X-ray upper collimator may have sand holes, which cannot be observed by the naked eye and affect the safety of the X-ray upper collimator, this solution designs multiple lead alloy blocks to replace the integrally cast lead liquid. Multiple lead alloy blocks are neatly placed in the shell 19 to form an upper collimator. The upper collimator composed of the shell 19 and the lead alloy blocks has a channel for transmitting X-rays. The lead alloy blocks in this structure are subjected to external pressure, making the structure more compact and preventing the generation of sand holes, which will affect the restraint of the upper collimator on X-rays.

[0045] Further, the housing 19 comprises:

[0046] Splice 1, splice 1 comprises:

[0047] Two first splicing plates 2;

[0048] Two second splicing plates 3, the first splicing plate 2 and the second splicing plate 3 are sequentially clamped together to form an annular plate 6;

[0049] The third splicing plate 5 is clamped on the upper end surface of the annular plate 6;

[0050] The fourth splicing plate 7 is clamped on the lower end surface of the annular plate 6 , and the first splicing plate 2 , the second splicing plate 3 , the third splicing plate 5 and the fourth splicing plate 7 are clamped together to form a splicing body 1 .

[0051] In this embodiment, the upper collimators in the prior art all have an outer shell 10 on the outside and a shell inside, and the middle of the inner shell is cast lead water. In order to solve the problem of fixing several lead alloy blocks into a specific shape, this scheme designs the structure of the splicing body 1. The first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 in this scheme are all stamped from lead alloys, and sand holes will be generated during casting because the lead will not be pressed very firmly during casting. The first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 in this scheme are formed by high-pressure extrusion, which is very tightly extruded and will not produce sand holes, ensuring that there are no sand holes. The advantages of this structure are: 1. Since lead will produce sand holes, the casting thickness will increase, resulting in heavy weight. The protective weight of lead in this scheme is reduced and the protection factor is high. 2. The service life is increased.

[0052] Furthermore, the edges of the first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 all have an annular snap-in protrusion 8, the thickness of the annular snap-in protrusion 8 is less than the thickness of the first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7, the annular snap-in protrusion 8 has a snap-in gap 18, the annular snap-in protrusions 8 of the first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 are abutted in sequence and snapped in the snap-in gap 18, and a splicing body 1 is formed after abutment.

[0053] In this embodiment, in order to solve the problem of how to splice the splicing body 1 together, in this solution, since the thickness of the annular clamping protrusion 8 is less than the thickness of the first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7, the clamping protrusion will form a clamping gap 18. When the first splicing plate 2 and the second splicing plate 3 are spliced, the annular clamping protrusion 8 of the first splicing plate 2 is clamped in the clamping gap 18 of the second splicing plate 3, and the annular clamping protrusion 8 of the second splicing plate 3 is clamped in the clamping gap 18 of the first splicing plate 2 to form a stable annular plate 6. The upper ends of the annular clamping protrusions 8 of the first splicing plate 2 and the second splicing plate 3 are both clamped in the clamping gap 18 of the third splicing plate 5, and the lower ends of the annular clamping protrusions 8 of the first splicing plate 2 and the second splicing plate 3 are both clamped in the clamping gap 18 of the fourth splicing plate 7. The first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 form a stable splicing body 1.

[0054] Furthermore, the first splicing plate 2 is a trapezoidal structure, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 are all rectangular structures, the length of the second splicing plate 3 is equal to the length of the hypotenuse of the first splicing plate 2, the length of the third splicing plate 5 is equal to the length of the upper base of the first splicing plate 2, the width of the third splicing plate 5 is equal to the width of the second splicing plate 3, the length of the fourth splicing plate 7 is equal to the length of the lower base of the first splicing plate 2, and the width of the fourth splicing plate 7 is equal to the width of the second splicing plate 3. In this embodiment, in order to strengthen the structure, this scheme designs the mutually contacting edges of the mutually contacting first splicing plate 2, the second splicing plate 3, the third splicing plate 5 and the fourth splicing plate 7 to be equal structures, ensuring that the structure of the splicing body 1 is neat and completely sealed.

[0055] Furthermore, the first splicing plate 2 is a trapezoidal structure, the annular clamping protrusions 8 of the second splicing plate 3 , the third splicing plate 5 and the fourth splicing plate 7 have the same structure, and the upper bottom length of the first splicing plate 2 is smaller than the lower bottom length of the first splicing plate 2 .

[0056] In this embodiment, the collimator can optimize the spectrum of the ray and improve the quality of the image. The collimator is also called a beam limiter or a beam beamer. In order to limit the path of the X-ray light source, the first splicing plate 2 is designed as a trapezoidal structure in this solution to limit the path direction of the X-ray light source. The upper collimator also has a positioning function and reduces the emission of stray rays. The trapezoidal structure can achieve the desired ray position of this solution.

[0057] Furthermore, the third splicing plate 5 has a first through hole 9, the fourth splicing plate 7 has a second through hole 4, and the first through hole 9 and the second through hole 4 are connected.

[0058] In this embodiment, the collimator is used to limit the size of the irradiation field, indirectly indicate the irradiation range and simulate the indication center line. Limiting the size of the irradiation field can suppress the generation of scattered rays. In order to allow X-rays to pass through the collimator, a first through hole 9 is opened on the upper and lower end faces of the collimator, that is, a first through hole 9 is opened on the third splicing plate 5 and a second through hole 4 is opened on the fourth splicing plate 7. The connected first through hole 9 and second through hole 4 allow X-rays to enter and exit.

[0059] Furthermore, two housings 10 are included, and the housings 10 include:

[0060] The main body 11 has a mounting groove 12, and the splicing body 1 is used to be snap-fitted into the mounting groove 12;

[0061] A first connecting plate 15 is disposed on the main body 11, and two first connecting plates 15 are connected to close the mounting groove 12;

[0062] A second connecting plate 16 is disposed on the upper end surface of the main body 11. The second connecting plate 16 is used to fix the upper end surface of the main body 11. The two second connecting plates 16 are used to form a third through hole 13. The third through hole 13 has the same structure as the first through hole 9. The third through hole 13 is connected to the first through hole 9;

[0063] The third connecting plate 17 is arranged on the lower end surface of the main body 11. The third connecting plate 17 is used to fix the lower end surface of the main body 11. The two third connecting plates 17 are used to form a fourth through hole 14. The fourth through hole 14 has the same structure as the second through hole 4, and the fourth through hole 14 is connected to the second through hole 4.

[0064] In this embodiment, in order to fix the spliced ​​body 1 and prevent the spliced ​​body 1 from falling off, this solution designs a shell 10, which is sleeved on the outside of the spliced ​​body 1. The shell 10 is composed of two identical main bodies 11. The structure of the mounting groove 12 is the same as that of the first connecting plate 15, both of which are trapezoidal structures. After the two main bodies 11 are buckled together, the spliced ​​body 1 can be sealed. In order to connect the two main bodies 11 together, this solution designs a first connecting plate 15. The two first connecting plates 15 are respectively located on the two oblique sides of the trapezoidal structure. The first connecting plates 15 located on different main bodies 11 are connected in pairs to prevent the spliced ​​body 1 from falling out. In order to fix the entire spliced ​​body 1, this solution designs a second connecting plate 16 and a third connecting plate 17. The second connecting plate 16 and the third connecting plate 17 can fix the spliced ​​body 1 in a specific position to ensure the stability of the structure. The third through hole 13 and the fourth through hole 14 are for X-rays to pass through.

[0065] A detection device, including a combined assembled collimator, comprising:

[0066] A support frame 20, an upper collimator is arranged on the support frame 20, and the support frame 20 has a conveying gap;

[0067] The conveyor belt 21 passes through the conveying gap;

[0068] The receiver 22 is used to be arranged on the frame and located below the conveyor belt 21. The receiver 22 is used to receive X-rays.

[0069] In this embodiment, the function of the upper collimator is that the conveyor belt 21 in this scheme is used to transport coal blocks. When the coal blocks pass through the upper collimator and the receiver 22, that is, the conveying gap, X-rays pass through the coal blocks to detect the coal blocks. The receiver 22 is arranged below the conveyor belt 21 to allow the X-rays to pass through the coal blocks. The positions of the receiver 22 and the upper collimator correspond exactly, and the receiver 22 can fully receive the X-rays transmitted by the upper collimator.

[0070] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Combined assembled collimator, characterized in that: include: A housing (19) having a cavity; A plurality of lead alloy blocks are arranged in the cavity, and the lead alloy blocks are neatly placed in the housing (19); The housing (19) comprises: A spliced ​​body (1), wherein the spliced ​​body (1) comprises: Two first splicing plates (2); Two second splicing plates (3), wherein the first splicing plate (2) and the second splicing plate (3) are sequentially snap-fitted to form an annular plate (6); A third splicing plate (5) is clamped on the upper end surface of the annular plate (6); A fourth splicing plate (7) is clamped on the lower end surface of the annular plate (6); the first splicing plate (2), the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7) are clamped together to form the splicing body (1); The third splicing plate (5) has a first through hole (9), the fourth splicing plate (7) has a second through hole (4), and the first through hole (9) and the second through hole (4) are in communication.

2. The combined assembled collimator according to claim 1, characterized in that: The edges of the first splicing plate (2), the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7) are all provided with an annular clamping protrusion (8); the thickness of the annular clamping protrusion (8) is smaller than the thickness of the first splicing plate (2), the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7); the annular clamping protrusion (8) has a clamping gap (18); the annular clamping protrusions (8) of the first splicing plate (2), the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7) are abutted in sequence and clamped in the clamping gap (18); and the splicing body (1) is formed after the abutment.

3. The combined assembled collimator according to claim 1, characterized in that: The first splicing plate (2) is a trapezoidal structure, the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7) are all rectangular structures, the length of the second splicing plate (3) is equal to the length of the hypotenuse of the first splicing plate (2), the length of the third splicing plate (5) is equal to the length of the upper base of the first splicing plate (2), the width of the third splicing plate (5) is equal to the width of the second splicing plate (3), the length of the fourth splicing plate (7) is equal to the length of the lower base of the first splicing plate (2), and the width of the fourth splicing plate (7) is equal to the width of the second splicing plate (3).

4. The combined assembled collimator according to claim 1, characterized in that: The first splicing plate (2) is of a trapezoidal structure, the annular clamping protrusions (8) of the second splicing plate (3), the third splicing plate (5) and the fourth splicing plate (7) have the same structure, and the upper base length of the first splicing plate (2) is shorter than the lower base length of the first splicing plate (2).

5. The combined assembled collimator according to claim 1, characterized in that: The housing (19) further comprises two outer shells (10), wherein the outer shells (10) comprise: The main body (11) has a mounting groove (12), and the splicing body (1) is used to be snap-fitted into the mounting groove (12); A first connecting plate (15) disposed on the main body (11); after two first connecting plates (15) are connected, they are used to close the installation groove (12); a second connecting plate (16) disposed on the upper end surface of the main body (11), the second connecting plate (16) being used to fix the upper end surface of the main body (11), the two second connecting plates (16) being used to form a third through hole (13), the third through hole (13) having the same structure as the first through hole (9), and the third through hole (13) being in communication with the first through hole (9); A third connecting plate (17) is arranged on the lower end surface of the main body (11), the third connecting plate (17) is used to fix the lower end surface of the main body (11), and the two third connecting plates (17) are used to form a fourth through hole (14), the fourth through hole (14) has the same structure as the second through hole (4), and the fourth through hole (14) is connected to the second through hole (4).

6. A detection device, comprising the combined assembled collimator according to any one of claims 1 to 5, characterized in that: include: A support frame (20), the upper collimator being arranged on the support frame (20), and the support frame (20) having a conveying gap; A conveyor belt (21) passing through the conveying gap; A receiver (22) is used to be arranged on the frame and located below the conveyor belt (21), and the receiver (22) is used to receive X-rays.

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