A light beam restrictor housing with dustproof sealing structure

Abstract

The utility model belongs to the technical field of light beam restrictor, specifically discloses a light beam restrictor shell with dustproof sealing structure, including bottom plate, clamping component, closed component and assembly component, the top of bottom plate is fixed and is sleeved with casing, clamping component connects between bottom plate and casing, is used for sealing bottom plate and casing, the top of casing inside is provided with horizontal cavity, and the centre of horizontal cavity is provided with round groove vertically, closed component is located between horizontal cavity and round groove. This light beam restrictor shell with dustproof sealing structure inserts casing vertically in the outside of support frame of bottom plate when assembling casing, the sealing layer one on the outer wall of support frame is in contact with sealing layer two on the inner wall of casing at this moment, increases frictional resistance and blocks the gap, and each clamping block of the four corners of bottom plate top is all aligned with the clamping slot of casing bottom and clamping fixed, avoids that bottom plate opens unexpectedly, solves the problem that the sealing dustproof performance is not good.

Description

Technical Field

[0001] This utility model relates to the field of beam stencil technology, specifically to a beam stencil housing with a dustproof and sealed structure. Background Technology

[0002] A collimator, often referred to as a beam collimator, is used in the medical field. It is usually installed below the head of a linear accelerator treatment machine and contains multiple sets of independently movable metal blades to adjust the X-rays passing through the beam collimator so that the radiation intensity of the emitted X-rays reaches the optimal dose.

[0003] To protect the internal components of the beam strainer and to facilitate installation and disassembly, an outer casing is required. These casings are mostly square, hollow inside, and have slots at the top and bottom to allow the beam to pass through. Although this structure is easy to open and close, the gaps are large and make it difficult to prevent dust from entering, which causes problems for the normal operation of the beam strainer.

[0004] Now, a novel beam slant housing with a dustproof and sealed structure is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a beam stencil housing with a dustproof and sealed structure to solve the problem of poor sealing and dustproof performance mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a beam stencil housing with a dustproof and sealed structure, comprising a base plate, a snap-fit ​​assembly, a sealing assembly, and an assembly assembly. A housing is fixedly sleeved on the top of the base plate, and the snap-fit ​​assembly is connected between the base plate and the housing to seal the base plate and the housing. A transverse cavity is horizontally arranged at the top of the housing, and a circular groove is longitudinally arranged at the center of the transverse cavity. The sealing assembly is located between the transverse cavity and the circular groove. The assembly assembly is symmetrically distributed at the front and rear ends of the upper surface of the housing to connect the housing and the treatment head.

[0007] As a further technical solution of this utility model, the snap-fit ​​assembly includes a support frame, and the support frame is longitudinally welded to the base plate. A sealing layer one is fixed around the outer surface of the support frame, and a sealing layer two is fixed around the inner wall of the housing. Slots are respectively provided at the four corners of the lower part of the housing, and snap blocks are respectively fixed at the four corners of the top of the base plate.

[0008] As a further technical solution of this utility model, the card block is embedded in the card slot, and the first sealing layer is in contact with the second sealing layer.

[0009] As a further technical solution of this utility model, the support frame is located inside the shell, and the shell moves longitudinally along the outer wall of the support frame.

[0010] As a further technical solution of this utility model, a horizontal bar is fixed to both sides of the interior of the transverse cavity, and a baffle is movably sleeved on the outer side of the horizontal bar. A horizontal groove is provided inside the baffle. A connecting block is fixed to the side of the top of the baffle, and a sleeve is fixed to the top of the side of the connecting block. A slot is provided to both sides of the top of the transverse cavity. Silicone strips are fixed to both sides of the upper surface of the shell.

[0011] As a further technical solution of this utility model, the silicone strips on both sides are respectively embedded in the groove, and the baffles are symmetrically arranged on both sides inside the circular groove.

[0012] As a further technical solution of this utility model, a bottom groove is provided at the center of the bottom plate, and a plug is fixedly inserted into the bottom groove.

[0013] As a further technical solution of this utility model, the assembly component includes an arc-shaped groove, and the arc-shaped groove is symmetrically distributed at both ends of the upper surface of the housing. The arc-shaped groove is provided with a slide rail, and an assembly piece is movably inserted into the slide rail. The assembly piece is provided with three sets of screw holes, and the slide rail is provided with a positioning hole. A screw is threadedly connected between the screw hole and the positioning hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the slant housing with dustproof and sealing structure not only achieves the sealing and dustproofing of the housing and makes it easy to close and open the upper and lower slots, but also enables the adjustment and assembly of components;

[0015] (1) By fixing and welding the support frame at the top of the base plate, when assembling the shell, the shell is inserted longitudinally into the outside of the support frame of the base plate. At this time, the sealing layer 1 on the outer wall of the support frame is in contact with the sealing layer 2 on the inner wall of the shell, which increases the frictional resistance and blocks the gap. In addition, each of the four corners at the top of the base plate is aligned with the slot at the bottom of the shell and is locked in place, which prevents the base plate from opening accidentally and ensures the stability of the shell.

[0016] (2) A bottom groove is provided in the center of the bottom plate and a circular groove is provided in the center of the transverse cavity. The bottom groove inside the bottom plate is sealed by a plug, while the circular groove connecting the treatment head above is closed by a sealing component. The silicone strip is simply pulled out from the groove on both sides, and then the connecting block is pushed horizontally along the groove to guide the baffle below to slide along the crossbar through the transverse groove and close the baffle on both sides at the bottom of the circular groove without removing the shell for sealing.

[0017] (3) By setting assembly components at the front and rear ends of the upper surface of the housing, the assembly pieces in the slide are moved at the arc grooves at the front and rear ends of the upper surface of the housing, and after aligning the screw holes and positioning holes, the screws are screwed in longitudinally for assembly and fixation. The angle and direction of each set of assembly pieces can be adjusted according to the different treatment heads being assembled, thereby expanding the applicable range of the beam beam housing so that it can be connected to the bottom of different treatment heads. Attached Figure Description

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0020] Figure 3 This is a front view cross-sectional structural diagram of the base plate of this utility model;

[0021] Figure 4 This is a front view cross-sectional structural diagram of the outer shell of this utility model;

[0022] Figure 5 This is a front view cross-sectional structural diagram of the closed component of this utility model;

[0023] Figure 6 This is a top view of the structure of this utility model.

[0024] In the diagram: 1. Base plate; 2. Plug; 3. Bottom groove; 4. Snap-fit ​​assembly; 5. Housing; 6. Horizontal cavity; 7. Sealing assembly; 8. Circular groove; 9. Assembly assembly;

[0025] 401. Support frame; 402. Sealing layer one; 403. Sealing layer two; 404. Slot; 405. Block;

[0026] 701. Crossbar; 702. Silicone strip; 703. Groove; 704. Connecting block; 705. Sleeve; 706. Baffle; 707. Horizontal groove;

[0027] 901. Arc groove; 902. Slide rail; 903. Positioning hole; 904. Assembly piece; 905. Screw hole; 906. Screw. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-6 The present invention provides an embodiment of a beam stencil housing with a dustproof and sealed structure, comprising a base plate 1, a snap-fit ​​assembly 4, a sealing assembly 7, and an assembly assembly 9. A housing 5 is fixedly sleeved on the top of the base plate 1. The snap-fit ​​assembly 4 is connected between the base plate 1 and the housing 5 to seal the base plate 1 and the housing 5. A transverse cavity 6 is horizontally arranged at the top of the housing 5, and a circular groove 8 is longitudinally arranged at the center of the transverse cavity 6. The sealing assembly 7 is located between the transverse cavity 6 and the circular groove 8. The assembly assembly 9 is symmetrically distributed at the front and rear ends of the upper surface of the housing 5 to connect the housing 5 and the treatment head.

[0030] The snap-fit ​​assembly 4 includes a support frame 401, which is longitudinally welded to the base plate 1. A sealing layer 402 is fixed around the outer surface of the support frame 401, and a sealing layer 403 is fixed around the inner wall of the housing 5. Slots 404 are respectively provided at the four corners of the lower part of the housing 5, and blocks 405 are respectively fixed at the four corners of the top of the base plate 1. The blocks 405 are embedded in the slots 404. The sealing layer 402 and the sealing layer 403 are in contact. The support frame 401 is located inside the housing 5, and the housing 5 moves longitudinally along the outer wall of the support frame 401.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when assembling the housing 5, the housing 5 is inserted longitudinally into the outside of the support frame 401 of the base plate 1. At this time, the sealing layer 402 on the outer wall of the support frame 401 is in contact with the sealing layer 403 on the inner wall of the housing 5, which increases the frictional resistance and blocks the gaps. In addition, each of the four corner blocks 405 at the top of the base plate 1 is aligned with the slot 404 at the bottom of the housing 5 and is locked in place to prevent the base plate 1 from opening accidentally.

[0032] A horizontal bar 701 is fixed to both sides inside the transverse cavity 6, and a baffle 706 is movably sleeved on the outside of the horizontal bar 701. A horizontal groove 707 is provided inside the baffle 706. A connecting block 704 is fixed to the side of the top of the baffle 706, and a retainer 705 is fixed to the top of the side of the connecting block 704. A slot 703 is provided to both sides of the top of the transverse cavity 6. A silicone strip 702 is fixed to both sides of the upper surface of the shell 5.

[0033] The silicone strips 702 on both sides are respectively embedded in the slots 703, the baffles 706 are symmetrically arranged on both sides inside the circular groove 8, and the bottom groove 3 is provided at the center of the bottom plate 1, and the plug 2 is fixedly inserted into the bottom groove 3.

[0034] Specifically, such as Figure 1 , Figure 3 and Figure 5As shown, the bottom groove 3 inside the base plate 1 is sealed by the plug 2, while the circular groove 8 connecting the treatment head above is closed by the sealing assembly 7. Simply pull out the silicone strip 702 from the slots 703 on both sides, and then push the connecting block 704 horizontally along the slots 703 to guide the lower baffle 706 to slide along the crossbar 701 through the transverse groove 707, and close the baffles 706 on both sides at the bottom of the circular groove 8.

[0035] The assembly component 9 includes an arc-shaped groove 901, which is symmetrically distributed at the front and rear ends of the upper surface of the housing 5. The arc-shaped groove 901 is provided with a slide rail 902, and an assembly piece 904 is movably inserted into the slide rail 902. The assembly piece 904 is provided with three sets of screw holes 905. The slide rail 902 is provided with a positioning hole 903. A screw 906 is threadedly connected between the screw hole 905 and the positioning hole 903.

[0036] Specifically, such as Figure 1 and Figure 6 As shown, the assembly piece 904 in the slide rail 902 is moved at the arc groove 901 at both ends of the upper surface of the housing 5, and after aligning with the screw hole 905 and the positioning hole 903, the screw 906 is screwed in longitudinally for assembly and fixation. The angle and direction of each assembly piece 904 can be adjusted according to the different treatment heads being assembled, thereby expanding the applicability of the beam beam housing and facilitating its installation and disassembly.

[0037] Working principle: When using this utility model, during the assembly of the housing 5, the housing 5 is longitudinally inserted into the outside of the support frame 401 of the base plate 1. At this time, the sealing layer 402 on the outer wall of the support frame 401 is in contact with the sealing layer 403 on the inner wall of the housing 5, increasing the frictional resistance and blocking the gaps. In addition, the locking blocks 405 at the four corners of the top of the base plate 1 are aligned with the locking grooves 404 at the bottom of the housing 5 and locked in place to prevent the base plate 1 from opening accidentally. The assembly piece 904 in the slide rail 902 is moved at the arc grooves 901 at both ends of the upper surface of the housing 5 to align with the screw holes 905 and the positioning holes. After step 903, screw 906 longitudinally into the assembly for fixation. The angle and direction of each assembly piece 904 can be adjusted according to the different treatment heads being assembled. The bottom groove 3 inside the base plate 1 is sealed by the plug 2, while the circular groove 8 connecting the treatment head above is closed by the sealing component 7. Simply pull out the silicone strip 702 from the slots 703 on both sides, and then push the connecting block 704 horizontally along the slots 703 to guide the lower baffle 706 to slide along the crossbar 701 through the transverse groove 707, and close the baffles 706 on both sides at the bottom of the circular groove 8 without removing the housing 5 for sealing.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A beam snoot housing with a dustproof and sealed structure, comprising a base plate (1), a snap-fit ​​assembly (4), a sealing assembly (7), and an assembly assembly (9), characterized in that: A housing (5) is fixedly sleeved on the top of the base plate (1), and the snap-fit ​​assembly (4) is connected between the base plate (1) and the housing (5) to seal the base plate (1) and the housing (5). The top of the housing (5) is horizontally provided with a transverse cavity (6), and a circular groove (8) is longitudinally provided at the center of the transverse cavity (6). The sealing component (7) is located between the transverse cavity (6) and the circular groove (8). The assembly components (9) are symmetrically distributed at the front and rear ends of the upper surface of the housing (5) and are used to connect the housing (5) and the treatment head.

2. The slant housing with a dustproof and sealed structure according to claim 1, characterized in that: The snap-fit ​​assembly (4) includes a support frame (401), which is longitudinally welded to the base plate (1). A sealing layer (402) is fixed around the outer surface of the support frame (401), and a sealing layer (403) is fixed around the inner wall of the housing (5). Slots (404) are provided at the four corners of the lower part of the housing (5), and snap blocks (405) are fixed at the four corners of the top of the base plate (1).

3. A beam stencil housing with a dustproof and sealed structure according to claim 2, characterized in that: The card block (405) is embedded in the card slot (404), and the first sealing layer (402) and the second sealing layer (403) are in contact.

4. A beam stencil housing with a dustproof and sealed structure according to claim 2, characterized in that: The support frame (401) is located inside the housing (5), and the housing (5) moves longitudinally along the outer wall of the support frame (401).

5. A beam stencil housing with a dustproof and sealed structure according to claim 1, characterized in that: A horizontal bar (701) is fixed to both sides of the interior of the transverse cavity (6), and a baffle (706) is movably sleeved on the outside of the horizontal bar (701). A horizontal groove (707) is provided inside the baffle (706). A connecting block (704) is fixed to the side of the top of the baffle (706), and a retainer (705) is fixed to the top of the side of the connecting block (704). A slot (703) is provided to both sides of the top of the transverse cavity (6), and silicone strips (702) are fixed to both sides of the upper surface of the shell (5).

6. A beam stencil housing with a dustproof and sealed structure according to claim 5, characterized in that: The silicone strips (702) on both sides are respectively embedded in the slots (703), and the baffles (706) are symmetrically arranged on both sides inside the circular groove (8).

7. A beam stencil housing with a dustproof and sealed structure according to claim 5, characterized in that: A bottom groove (3) is provided at the center of the bottom plate (1), and a plug (2) is fixedly inserted into the bottom groove (3).

8. A beam stencil housing with a dustproof and sealed structure according to claim 1, characterized in that: The assembly component (9) includes an arc groove (901), and the arc groove (901) is symmetrically distributed at the front and rear ends of the upper surface of the housing (5). The arc groove (901) is provided with a slide rail (902), and an assembly piece (904) is movably inserted in the slide rail (902). The assembly piece (904) is provided with three sets of screw holes (905), and the slide rail (902) is provided with a positioning hole (903). A screw (906) is threadedly connected between the screw hole (905) and the positioning hole (903).

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