Beam limiting device aperture blade assembly structure

Abstract

The utility model discloses a beam limiting device aperture blade assembly structure, which relates to the technical field of blade assembly structures and comprises a blade assembly structure body, an emergent shielding window group and an assembly seat, the blade assembly structure body is mounted at the top of the assembly seat, and the emergent shielding window group is mounted at the top of the blade assembly structure body. According to the beam limiting device aperture blade assembly, the top of the emergent shielding window group is adjusted and sealed by arranging the sealing protection assembly to be matched with the adjusting moving assembly, so that dust particles are effectively prevented from entering the blade assembly structure body, and the problem that the emergent shielding window group of the existing beam limiting device aperture blade assembly is directly communicated with the outside; the problems of inconvenience in use and reduction of the use effect of the beam limiting device aperture blade assembly caused by dust accumulation on the surface of the blade surface, increase of mechanical motion resistance and reduction of positioning precision due to the fact that external dust easily enters through a top gap are solved, and the dustproof adjustment effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blade assembly structure, specifically is a beam limiter diaphragm blade assembly structure. BACKGROUND

[0002] The beam limiter diaphragm blade assembly structure is a device for controlling the irradiation range of a ray beam, which is usually composed of multiple adjustable blades that can rotate or translate around a central axis. By changing the gap size between the blades, a specific shape and size of the ray beam irradiation area can be accurately defined, thereby achieving precise control of the ray in medical radiation, industrial flaw detection and other fields, and reducing radiation to non-target areas.

[0003] For example, the beam limiter diaphragm blade assembly structure disclosed in CN212965742U includes a diaphragm blade seat, a diaphragm blade is arranged in the diaphragm blade seat, a diaphragm tooth disc is arranged at the top of the diaphragm blade seat, a diaphragm tooth disc compression ring set is arranged above the diaphragm tooth disc, a diaphragm detection baffle is connected to the diaphragm tooth disc through a disc head screw, an exit shielding window set is arranged above the diaphragm tooth disc compression ring set, an assembly seat is arranged at the bottom of the diaphragm blade seat, a servo motor is arranged on the side wall of the assembly seat, and the output end of the servo motor is connected with the diaphragm tooth disc through a transmission device. The utility model connects the upper ends of the multiple arc-shaped blades that constitute the diaphragm blade with the diaphragm tooth disc through upper shaft columns, controls the servo motor, and rotates the diaphragm tooth disc under the action of the transmission sprocket, rotating sprocket and meshing gear, so that the diaphragm tooth disc drives the arc-shaped blades to move, thereby adjusting the projection range of the diaphragm blade and avoiding replacement of the diaphragm assembly.

[0004] Based on the search of the patent number and the deficiencies in the prior art, it is found that:

[0005] The exit shielding window set of the existing beam limiter diaphragm blade assembly directly communicates with the outside world, external dust is easy to enter through the top gap, causing dust accumulation on the surface of the blades, increasing mechanical movement resistance, and reducing positioning accuracy, which causes inconvenience in use and reduces the use effect of the beam limiter diaphragm blade assembly. UTILITY MODEL CONTENTS

[0006] To solve the problems raised in the background art, the purpose of the utility model is to provide a beam limiter diaphragm blade assembly structure with the advantages of dustproof adjustment, which solves the problem of the exit shielding window set of the existing beam limiter diaphragm blade assembly directly communicating with the outside world, external dust being easy to enter through the top gap, causing dust accumulation on the surface of the blades, increasing mechanical movement resistance, and reducing positioning accuracy, which causes inconvenience in use and reduces the use effect of the beam limiter diaphragm blade assembly.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a beam limiter diaphragm blade subassembly structure, including blade subassembly structure body, emission shielding window group and assembly seat, the blade subassembly structure body installs at the top of assembly seat, the emission shielding window group installs at the top of blade subassembly structure body, the top of emission shielding window group is provided with sealed protection subassembly, the outside of the top of emission shielding window group is provided with adjustment movement subassembly.

[0008] As the utility model prefers, the sealed protection subassembly includes a sealing plate, a protective plate is installed on the top of the sealing plate, magnetic blocks are installed on the inner side of the protective plate, the magnetic blocks attract each other, a sealing strip is installed on the inner side of the protective plate, and the magnetic blocks are installed inside the sealing strip.

[0009] As the utility model prefers, the adjustment movement subassembly includes a mounting groove, an electric push rod is installed on the outer side of the inner wall of the mounting groove, a moving block is installed on the output end of the electric push rod, the top of the moving block is installed with the bottom of the protective plate, the electric push rod is electrically connected with a controller through wires, and the controller is installed on the front of the assembly seat.

[0010] As the utility model prefers, a sealing block is installed on the inner side of the moving block, a sealing column is installed on the outer side of the electric push rod, and the sealing column is installed inside the mounting groove.

[0011] As the utility model prefers, connecting blocks are installed on both sides of the outer side of the protective plate, sliding blocks are installed on the bottom of the connecting blocks, a sliding groove is formed on the outer side of the top of the emission shielding window group, and the surface of the sliding block is slidably connected with the inside of the sliding groove.

[0012] As the utility model prefers, a baffle is installed on the outer side of the top of the emission shielding window group, elastic plates are installed on the inner side of the baffle, and the elastic plates are located on the outer side of the sealing strip.

[0013] As the utility model prefers, a protective box is installed on the outer side of the controller, and the protective box is installed on the front of the assembly seat.

[0014] As the utility model prefers, elastic blocks are installed on the outer side of the sliding blocks, the controller is electrically connected with a remote controller through wires, and the remote controller is installed inside the protective box.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] 1. The utility model discloses a sealing protection subassembly is set up cooperation adjustment mobile subassembly to the top of the outgoing shielding window group is adjusted and sealed, effectively reduce the dust particle to enter the inside of vane subassembly structure ontology, solved the outgoing shielding window group of present limited beam stopper diaphragm vane subassembly is directly communicated with outside, and outside dust is easy to enter through the top gap, causes the vane surface dust, and the mechanical movement resistance increases, and the positioning precision drops the condition, has caused the inconvenience in use, reduced the problem of limited beam stopper diaphragm vane subassembly use effect, reached the effect that dustproof adjustment.

[0017] 2. The utility model discloses a sealing protection subassembly is set up, and the sealing plate is the protection structure of foundation, and the protection plate further enhances the protection effect, and the magnetic attraction piece of inside installation of protection plate mutually attract, make protection plate can closely adhere, form first dustproof defense line, prevent dust from entering from the top bigger gap, and the sealing strip of installation in the inside of protection plate and the wrapping magnetic attraction piece can fill the tiny gap between protection plate, further block dust from entering, provide dustproof protection for vane subassembly structure ontology, effectively reduce the erosion of dust to vane, prolong the service life of vane subassembly structure ontology, reduce maintenance cost.

[0018] 3. The utility model discloses a adjustment mobile subassembly is set up, and the electric push rod can accurately push the moving block under the control of controller, and the moving block is connected with the protection plate to move the protection plate steadily, realize the sealing opening and closing of outgoing shielding window group top, and this design is convenient and fast, and the operator can according to actual use demand, like opening when equipment preparation work, and close when equipment operation to prevent dust from entering, and the controller is installed at the front of assembly seat, and the operator carries out on -the -spot control conveniently, improve the applicability of equipment and the convenience of operation. ACCURACY

[0019] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the three -dimensional split structure schematic diagram of the utility model;

[0021] Figure 3 It is the utility model Figure 2 The enlarged structure schematic diagram of A place in the utility model.

[0022] In the diagram: 1. Blade assembly structure; 2. Outgoing shielding window assembly; 3. Assembly base; 4. Sealing and protection assembly; 41. Sealing plate; 42. Protective plate; 43. Magnetic block; 44. Sealing strip; 5. Adjustment and movement assembly; 51. Mounting groove; 52. Electric push rod; 53. Moving block; 54. Controller; 6. Sealing block; 7. Sealing column; 8. Connecting block; 9. Slider; 10. Slide groove; 11. Baffle; 12. Elastic plate; 13. Protective box; 14. Elastic block; 15. Remote controller. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 3 As shown, the present invention provides a beam limiter aperture blade assembly structure, including a blade assembly structure body 1, an emission shielding window group 2 and an assembly base 3. The blade assembly structure body 1 is installed on the top of the assembly base 3, the emission shielding window group 2 is installed on the top of the blade assembly structure body 1, a sealing and protection component 4 is provided on the top of the emission shielding window group 2, and an adjustment and movement component 5 is provided on the outer side of the top of the emission shielding window group 2.

[0025] refer to Figure 3 The sealing and protective assembly 4 includes a sealing plate 41, a protective plate 42 is installed on the top of the sealing plate 41, a magnetic block 43 is installed on the inner side of the protective plate 42, the magnetic blocks 43 attract each other, a sealing strip 44 is installed on the inner side of the protective plate 42, and the magnetic blocks 43 are installed inside the sealing strip 44.

[0026] As a technical optimization of this utility model, by setting a sealing and protective component 4, the sealing plate 41 forms the basic protective structure, and the protective plate 42 further enhances the protective effect. The magnetic blocks 43 installed on the inner side of the protective plate 42 attract each other, so that the protective plate 42 can fit tightly, forming the first dustproof line, preventing dust from entering from the larger gap at the top. The sealing strip 44 installed on the inner side of the protective plate 42 and wrapping the magnetic blocks 43 can fill the tiny gaps between the protective plates 42, further blocking dust from entering, providing dustproof protection for the blade assembly structure body 1, effectively reducing the erosion of the blade by dust, extending the service life of the blade assembly structure body 1, and reducing maintenance costs.

[0027] refer to Figure 2The adjusting moving assembly 5 comprises a mounting groove 51, an electric push rod 52 is mounted on the outer side of the inner wall of the mounting groove 51, a moving block 53 is mounted on the output end of the electric push rod 52, the top of the moving block 53 is mounted with the bottom of the protective plate 42, the electric push rod 52 is electrically connected with a controller 54 through wires, and the controller 54 is mounted on the front face of the assembling seat 3.

[0028] As a technical optimization scheme of the utility model, the adjusting moving assembly 5 is arranged, the electric push rod 52 can accurately push the moving block 53 under the control of the controller 54, the moving block 53 is connected with the protective plate 42, thereby driving the protective plate 42 to move stably, realizing the sealing opening and closing of the top of the exit shielding window group 2, the design is convenient and fast, and the operator can open according to the actual use demand, such as when preparing the equipment, and closes when the equipment is running to prevent dust from entering, flexibly adjusts the sealing state, the controller 54 is installed on the front face of the assembling seat 3, the on-site control of the operator is facilitated, and the applicability of the equipment and the convenience of operation are improved.

[0029] Reference Figure 2 The inner side of the moving block 53 is mounted with a sealing block 6, the outer side of the electric push rod 52 is mounted with a sealing column 7, and the sealing column 7 is mounted in the inside of the mounting groove 51.

[0030] As a technical optimization scheme of the utility model, the sealing block 6 and the sealing column 7 are arranged, the sealing block 6 is mounted on the inner side of the moving block 53, the sealing column 7 is mounted on the outer side of the electric push rod 52 and located in the inside of the mounting groove 51, when the electric push rod 52 pushes the moving block 53, the sealing block 6 avoids the dust and impurities from entering the blade assembly structure body 1 through the connecting gap between the moving block 53 and the mounting groove 51, the sealing column 7 can seal and protect the outer side of the electric push rod 52, reduces the influence of dust and impurities on the electric push rod 52, and enhances the safety and service life of the electric push rod 52 in use.

[0031] Reference Figure 3 The outer sides of the protective plate 42 are mounted with connecting blocks 8, the bottom of the connecting block 8 is mounted with a sliding block 9, the outer side of the top of the exit shielding window group 2 is provided with a sliding groove 10, and the surface of the sliding block 9 is slidably connected with the inside of the sliding groove 10.

[0032] As a technical optimization scheme of the utility model, the connecting block 8, the sliding block 9 and the sliding groove 10 are arranged, the connecting block 8 is mounted on the outer sides of the protective plate 42, the sliding block 9 at the bottom thereof is slidably connected with the sliding groove 10 provided on the outer side of the top of the exit shielding window group 2, in the moving process of the protective plate 42, the sliding block 9 stably slides in the sliding groove 10, so that the movement of the protective plate 42 is smoother, and the situations of jamming and deviation are avoided.

[0033] Reference Figure 2The outer side of the top of the exit shielding window group 2 is provided with a baffle 11, the inner side of the baffle 11 is provided with an elastic plate 12, and the elastic plate 12 is located on the outer side of the sealing strip 44.

[0034] As a technical optimization scheme of the utility model, the outer side of the sealing strip 44 can be sealed by the cooperation of the baffle 11 and the elastic block 14 in use, the connection gap on the outer side of the sealing strip 44 is avoided, the condition that dust particles enter is caused, and the sealing effect of the sealing strip 44 in use is enhanced.

[0035] Reference Figure 2 The outer side of the controller 54 is provided with a protective box 13, and the protective box 13 is installed on the front face of the assembly seat 3.

[0036] As a technical optimization scheme of the utility model, the controller 54 is wrapped in the protective box 13, in the actual use environment, dust, water vapor and other external factors may cause damage to the controller 54, affect the normal work, the protective box 13 can effectively block these external factors, provide a relatively safe operating environment for the controller 54, and ensure the stable operation of the controller 54.

[0037] Reference Figure 3 The outer side of the sliding block 9 is provided with an elastic block 14, the controller 54 is electrically connected with a remote controller 15 through a wire, and the remote controller 15 is installed in the protective box 13.

[0038] As a technical optimization scheme of the utility model, the outer side of the sliding block 9 is provided with the elastic block 14, which can play a buffering and damping role when the sliding block 9 moves, reduce the friction and collision between the sliding block 9 and the sliding groove 10, reduce the wear degree of the parts, and also play a certain sealing effect, and the remote controller 15 is installed in the protective box 13 and is electrically connected with the controller 54, so that the operator can remotely control the device at a position away from the device.

[0039] The working principle and use process of the utility model: when needing to use the beam limiter, the operator can send an instruction through the controller 54 or remote controller 15, the electric push rod 52 is started under the control of the controller 54, the output end of the electric push rod 52 pushes the moving block 53, since the top of the moving block 53 is connected with the bottom of the protective plate 42, and the bottom sliding block 9 of the connecting block 8 outside the protective plate 42 is slidingly connected with the sliding groove 10 at the top of the exit shielding window group 2, under the pushing of the electric push rod 52, the protective plate 42 moves stably to the outside along the sliding groove 10, thereby opening the blade assembly structure body 1 inside the beam limiter to prepare for the adjustment work of the radiation beam irradiation range, when not using the beam limiter, the electric push rod 52 keeps the protective plate 42 in the closed state, the sealing plate 41 serves as the basic protection structure to prevent dust from entering, the magnetic attraction blocks 43 inside the protective plate 42 attract each other to make the protective plate 42 closely adhere to each other, forming an effective dustproof barrier to block the dust from entering from the top gap, the sealing strip 44 wrapping the magnetic attraction blocks 43 fills the tiny gap between the protective plate 42, further preventing dust from entering, reducing the erosion of dust on the blade, ensuring that the blade can accurately adjust the irradiation range of the radiation beam, avoiding the problems of increased mechanical movement resistance and decreased positioning accuracy caused by dust, in the closing process of the protective plate 42, the baffle 11 and the elastic plate 12 also play an important role, the baffle 11 can block the external dust from directly contacting the outside connecting gap of the sealing strip 44, and the elastic plate 12 plays a role of elastic buffer sealing when the protective plate 42 is closed, avoiding the entry of dust due to the sealing, achieving the effect of dustproof adjustment, and enhancing the use effect of the beam limiter aperture blade assembly.

[0040] In conclusion: the beam limiter aperture blade assembly structure is adjusted and sealed to the top of the exit shielding window group 2 by the sealing protection assembly 4 cooperating with the adjustment moving assembly 5, effectively reducing the entry of dust particles into the blade assembly structure body 1, solving the problems of the exit shielding window group of the existing beam limiter aperture blade assembly directly communicating with the outside, the external dust easily entering through the top gap, causing the blade surface to be dusty, leading to increased mechanical movement resistance and decreased positioning accuracy, causing inconvenience in use, and reducing the use effect of the beam limiter aperture blade assembly.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A beam stopper diaphragm blade assembly structure comprising a blade assembly structure body (1), an exit shielding window group (2) and an assembly seat (3), characterized in that: The vane assembly structure body (1) is installed on the top of the assembly seat (3), the exit shielding window group (2) is installed on the top of the vane assembly structure body (1), the top of the exit shielding window group (2) is provided with a sealing protection assembly (4), and the outer side of the top of the exit shielding window group (2) is provided with an adjusting and moving assembly (5).

2. A collimator aperture blade assembly structure according to claim 1, wherein: The sealing protection assembly (4) comprises a sealing plate (41), the top of the sealing plate (41) is provided with a protection plate (42), the inner side of the protection plate (42) is provided with magnetic attraction blocks (43), the magnetic attraction blocks (43) are attracted to each other, the inner side of the protection plate (42) is provided with a sealing strip (44), and the magnetic attraction blocks (43) are installed in the sealing strip (44).

3. A collimator aperture blade assembly structure according to claim 2, wherein: The adjusting and moving assembly (5) comprises an installation groove (51), an electric push rod (52) is installed on the outer side of the inner wall of the installation groove (51), the output end of the electric push rod (52) is provided with a moving block (53), the top of the moving block (53) is installed on the bottom of the protection plate (42), and the electric push rod (52) is electrically connected with a controller (54) through wires, and the controller (54) is installed on the front surface of the assembly seat (3).

4. A collimator aperture blade assembly structure according to claim 3, wherein: The inner side of the moving block (53) is provided with a sealing block (6), the outer side of the electric push rod (52) is provided with a sealing column (7), and the sealing column (7) is installed in the installation groove (51).

5. A collimator aperture blade assembly structure according to claim 3, wherein: The outer side of the protection plate (42) is provided with a connecting block (8) on both sides, the bottom of the connecting block (8) is provided with a sliding block (9), the outer side of the top of the exit shielding window group (2) is provided with a sliding groove (10), and the surface of the sliding block (9) is slidably connected with the inner side of the sliding groove (10).

6. A collimator aperture blade assembly structure according to claim 2, wherein: The outer side of the top of the exit shielding window group (2) is provided with a baffle (11), the inner side of the baffle (11) is provided with an elastic plate (12), and the elastic plate (12) is located on the outer side of the sealing strip (44).

7. A beam dump collimator blade assembly structure as claimed in claim 3, wherein: The outer side of the controller (54) is provided with a protection box (13), and the protection box (13) is installed on the front surface of the assembly seat (3).

8. A beam dump collimator blade assembly structure as claimed in claim 5, wherein: The outer side of the sliding block (9) is provided with an elastic block (14), the controller (54) is electrically connected with a remote controller (15) through wires, and the remote controller (15) is installed in the protection box (13).

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