Radiation-proof X-ray mechanism and dental X-ray machine

Abstract

According to the anti-radiation X-ray mechanism and the dental X-ray machine, radiation leakage of an X-ray assembly is blocked by arranging a light source protection sleeve, and X-rays which are emitted from the emitting end of the X-ray assembly and reach a beam limiting cylinder assembly are prevented from being leaked through a beam limiting cylinder protection sleeve; the inner diameter of the first end of the beam limiting cylinder protecting sleeve is larger than that of the window on the light source protecting sleeve, and the first end of the beam limiting cylinder protecting sleeve surrounds the peripheral side of the window, so that partial areas of the beam limiting cylinder protecting sleeve and the light source protecting sleeve are stacked in an imbricated manner to realize sealing; the X-ray can be blocked by the beam limiting cylinder protecting sleeve even if the X-ray escapes outwards after passing through the window, so that tight connection protection between the light source protecting sleeve and the beam limiting cylinder protecting sleeve is realized, and the X-ray is prevented from leaking from a gap.

Description

Technical Field

[0001] This application relates to the field of dental instrument technology, and in particular to a radiation-proof X-ray mechanism and a dental X-ray machine. Background Art

[0002] Dental X-ray machines pose a potential risk of radiation leakage, therefore various precautions are typically taken to minimize this risk. Radiation leakage generally refers to a situation where, during normal operation, the dental X-ray machine fails to completely maintain radiation within the normal radiation range, resulting in some radiation that causes minor harm to the surrounding environment or the operator.

[0003] Currently, dental X-ray machines primarily use lead sheeting for radiation protection to reduce leakage. However, due to structural differences, gaps often exist during the assembly and connection of structural components, preventing the lead sheeting from providing a tight seal and allowing X-rays to leak through these gaps. Utility Model Content

[0004] The purpose of this application is to provide a radiation-proof X-ray mechanism and a dental X-ray machine that can prevent X-rays from leaking out of gaps.

[0005] The embodiments of this application can be implemented as follows:

[0006] In a first aspect, this utility model provides a radiation-proof X-ray mechanism, including an X-ray assembly, a beam-limiting tube assembly, a light source protective sleeve, and a beam-limiting tube protective sleeve;

[0007] The X-ray assembly is connected to the beam-limiting tube assembly, and the X-ray emission end of the X-ray assembly is connected to the beam-limiting channel of the beam-limiting tube assembly.

[0008] The light source protective sleeve covers the outside of the X-ray assembly, and the light source protective sleeve has a window to expose the emission end through the window;

[0009] The beam-limiting sleeve covers the outside or inside of the beam-limiting assembly, and the first end of the beam-limiting sleeve is connected to the light source protective sleeve. The first end of the beam-limiting sleeve surrounds the outer periphery of the window.

[0010] In an optional embodiment, the beam limiting tube assembly includes a tapered beam limiting tube and a long beam limiting tube, wherein a first end of the tapered beam limiting tube is connected to the exit end, and a second end of the tapered beam limiting tube extends into the interior of the long beam limiting tube.

[0011] The beam-limiting sleeve includes a conical beam-limiting sleeve and a long beam-limiting sleeve. The conical beam-limiting sleeve covers the conical beam-limiting sleeve, and the long beam-limiting sleeve covers the long beam-limiting sleeve.

[0012] The first end of the cone-shaped beam-limiting protective sleeve is the same as the first end of the beam-limiting cylindrical protective sleeve, and the second end of the cone-shaped beam-limiting protective sleeve extends into the long beam-limiting protective sleeve.

[0013] In an optional embodiment, the cone-shaped beam-limiting protective sleeve includes a first cone sleeve and a second cone sleeve. The first end of the first cone sleeve is the first end of the cone-shaped beam-limiting protective sleeve. The first cone sleeve covers the outer circumferential surface of the cone-shaped beam-limiting cylinder, and the second cone sleeve covers the inner circumferential surface of the cone-shaped beam-limiting cylinder. The second end of the second cone sleeve is the second end of the cone-shaped beam-limiting protective sleeve. The first cone sleeve and the second cone sleeve partially overlap in the direction of the ray optical axis.

[0014] In an optional embodiment, the first conical sleeve and the light source protective sleeve, the first conical sleeve and the conical beam-limiting tube, and the second conical sleeve and the conical beam-limiting tube are connected by spot welding or adhesive bonding.

[0015] In an optional embodiment, the second conical sleeve includes a body section and an extension section coaxially connected, the body section being conical and the extension section being cylindrical, the extension section extending into the long-limiting protective sleeve.

[0016] In an optional embodiment, the long beam-limiting protective sleeve covers the inner circumferential surface of the long beam-limiting cylinder, and the long beam-limiting protective sleeve is cylindrical.

[0017] In an optional embodiment, the oil tank of the X-ray assembly is polyhedral in shape, and the light source protective sleeve includes an outer protective sleeve, which is a sheet of material with a length greater than the circumference of the X-ray assembly. The sheet of material is wrapped around the outer surface of the X-ray assembly and covers the side of the oil tank where the emission end is exposed.

[0018] The head and tail of the sheet overlap, and the overlapping area corresponds to the cathode region of the X-ray tube of the X-ray assembly.

[0019] In an optional embodiment, the light source protective sleeve further includes a ray tube protective sleeve that covers the ray tube and exposes the emission end.

[0020] In an optional embodiment, the light source protective sleeve is connected to the X-ray assembly by spot welding or adhesive bonding.

[0021] Secondly, this utility model provides a dental X-ray machine, including the radiation-proof X-ray mechanism described in any of the foregoing embodiments.

[0022] Compared with the prior art, the beneficial effects of the embodiments of this application include, for example:

[0023] Radiation leakage from the X-ray assembly is blocked by setting up a light source protective sleeve, and X-ray leakage from the exit end of the X-ray assembly to the beam confinement sleeve is prevented by a beam confinement sleeve. Since the inner diameter of the first end of the beam confinement sleeve is larger than the inner diameter of the window on the light source protective sleeve, and the first end of the beam confinement sleeve surrounds the outer periphery of the window, the beam confinement sleeve and the light source protective sleeve are partially stacked to achieve a seal. Even if X-rays escape outward after passing through the window, they will be blocked by the beam confinement sleeve, thus achieving a tight connection and protection between the light source protective sleeve and the beam confinement sleeve, preventing X-ray leakage from gaps. Attached Figure Description

[0024] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram of the internal structure of the dental X-ray machine according to an embodiment of this application;

[0026] Figure 2 This is an exploded view of a dental X-ray machine according to an embodiment of this application;

[0027] Figure 3 for Figure 1 A partial structural diagram;

[0028] Figure 4 for Figure 1 One of the schematic diagrams of Chinese and foreign protective sleeves;

[0029] Figure 5 for Figure 1 The second schematic diagram of the Chinese and foreign protective covers.

[0030] Icons: 1-Long beam constrictor; 2-Long beam constrictor protective sleeve; 3-Second cone sleeve; 31-Main body section; 32-Extension section; 4-Conical beam constrictor; 5-First cone sleeve; 6-Outer protective sleeve; 61-Overlapping area; 7-Fuel tank; 8-X-ray tube protective sleeve; 9-X-ray tube; 10-Casing. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0037] The following is combined Figures 1 to 5 This application provides a detailed description of some embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] refer to Figures 1 to 3This application discloses a dental X-ray machine, which includes a housing 10 and a radiation-shielding X-ray mechanism disposed within the housing 10. The housing 10 mainly serves to provide a gripping and operating space for the user and to support the radiation-shielding X-ray mechanism.

[0039] Radiation protection X-ray mechanism includes X-ray assembly, beam confinement tube assembly, light source protective sleeve and beam confinement tube protective sleeve;

[0040] The X-ray assembly is connected to the beam-limiting tube assembly, and the X-ray emission end of the X-ray assembly is connected to the beam-limiting channel of the beam-limiting tube assembly.

[0041] A protective cover for the light source covers the outside of the X-ray assembly, and the protective cover has a window to expose the emission end.

[0042] The beam-limiting sleeve covers the outside or inside of the beam-limiting assembly, and the first end of the beam-limiting sleeve is connected to the light source protective sleeve. The first end of the beam-limiting sleeve surrounds the outer periphery of the window, so the inner diameter of the first end of the beam-limiting sleeve is larger than the inner diameter of the window.

[0043] In this way, by setting up a light source protective sleeve to block radiation leakage from the X-ray assembly, and a beam-limiting sleeve to prevent X-rays emitted from the X-ray assembly's exit end from leaking into the beam-limiting sleeve assembly, and because the inner diameter of the first end of the beam-limiting sleeve is larger than the inner diameter of the window on the light source protective sleeve, and the first end of the beam-limiting sleeve surrounds the outer periphery of the window, the beam-limiting sleeve and the light source protective sleeve are partially stacked to achieve a seal. Even if X-rays escape outward after passing through the window, they will be blocked by the beam-limiting sleeve, thus achieving a tight connection and protection between the light source protective sleeve and the beam-limiting sleeve, preventing X-rays from leaking from gaps.

[0044] Furthermore, using this overlapping stacking method to prevent X-ray leakage at the gaps in the protective sleeve avoids the radiation leakage caused by uneven welding, which is a problem in prior art where the seams of each lead sheet are directly welded.

[0045] The protective sleeve can be made of lead or other materials that can block radiation, such as tungsten alloy. The structure of the X-ray assembly usually adopts the structure of existing technology, which will only be briefly described here. For example, the X-ray assembly includes an oil tank 7 and a ray tube 9 inside the oil tank 7. The exit end of the ray tube 9 is the exit end of the entire X-ray assembly. The exit end of the ray tube 9 is exposed in the oil tank 7 so that X-rays can be emitted through the exit end during operation. The oil tank 7 mainly serves the functions of cooling, insulation, lubrication and protection.

[0046] Combination Figure 4 and Figure 5The oil tank 7 of the X-ray assembly is polyhedral in shape. The light source protective sleeve includes an outer protective sleeve 6, which is a sheet of material with a length greater than the circumference of the X-ray assembly. The sheet of material is wrapped around the outer surface of the X-ray assembly and covers the exposed side of the output end on the oil tank 7. The head and tail of the sheet of material overlap, and the overlapping area 61 corresponds to the cathode area of ​​the X-ray tube 9 of the X-ray assembly.

[0047] This shingle-layer stacking method allows for targeted increases in lead thickness at locations with higher leakage rates, avoiding the use of multiple lead sheets of varying thicknesses or repeated use of the same thickness. Compared to conventional multi-layer stacking, this method reduces lead sheet usage and weight.

[0048] Refer again Figures 1 to 3 The light source protective sleeve also includes a radiation tube protective sleeve 8, which covers the radiation tube 9 and exposes the emission end. This allows for stacking and thickening in directions or areas with strong radiation leakage, significantly reducing the thickness of the outer protective sleeve 6 of the oil tank 7, thereby reducing the weight of the instrument while maintaining the same radiation protection performance.

[0049] The light source protective sleeve and the X-ray assembly are connected by spot welding or adhesive bonding. That is, the outer protective sleeve 6 and the oil tank 7, as well as the X-ray tube protective sleeve 8 and the X-ray tube 9, can be connected by spot welding or adhesive bonding. Compared with the prior seam welding technology, the process is less difficult and less costly.

[0050] The beam confinement tube assembly includes a conical beam confinement tube 4 and a long beam confinement tube 1. The first end of the conical beam confinement tube 4 is connected to the exit end, and the second end of the conical beam confinement tube 4 extends into the interior of the long beam confinement tube 1.

[0051] The beam-limiting sleeve includes a conical beam-limiting sleeve and a long beam-limiting sleeve 2. The conical beam-limiting sleeve covers the conical beam-limiting sleeve 4, and the long beam-limiting sleeve 2 covers the long beam-limiting sleeve 1.

[0052] The first end of the cone-shaped beam-limiting protective sleeve is the same as the first end of the beam-limiting tube protective sleeve, and the second end of the cone-shaped beam-limiting protective sleeve extends into the long beam-limiting protective sleeve 2.

[0053] In this way, the beam limiting sleeve is adapted to the structure of the beam limiting sleeve assembly. Since the second end of the cone beam limiting sleeve extends into the long beam limiting sleeve 2, the cone beam limiting sleeve and the long beam limiting sleeve 2 also form a shingled stack, which can prevent X-ray leakage due to the assembly gap between the cone beam limiting sleeve and the long beam limiting sleeve 2.

[0054] More specifically, the cone-shaped beam-limiting protective sleeve includes a first cone sleeve 5 and a second cone sleeve 3. The first end of the first cone sleeve 5 is the first end of the cone-shaped beam-limiting protective sleeve. The first cone sleeve 5 covers the outer circumferential surface of the cone-shaped beam-limiting cylinder 4. The second cone sleeve 3 covers the inner circumferential surface of the cone-shaped beam-limiting cylinder 4. The second end of the second cone sleeve 3 is the second end of the cone-shaped beam-limiting protective sleeve. The first cone sleeve 5 and the second cone sleeve 3 partially overlap in the direction of the ray optical axis.

[0055] In this way, the first conical sleeve 5 and the second conical sleeve 3 cover the inner and outer sides of the conical beam confinement tube 4 respectively, and the first conical sleeve 5 and the second conical sleeve 3 partially overlap in the direction of the X-ray optical axis. Therefore, the first conical sleeve 5 and the second conical sleeve 3 also form a tile-like stack, which can prevent X-rays from leaking from the assembly gap between the first conical sleeve 5 and the second conical sleeve 3 and the conical beam confinement tube 4 respectively.

[0056] The first conical sleeve 5 and the outer protective sleeve 6 of the light source protective sleeve, the first conical sleeve 5 and the conical beam limiting tube 4, and the second conical sleeve 3 and the conical beam limiting tube 4 are connected by spot welding or adhesive bonding.

[0057] The inner diameter of the first end of the first cone sleeve 5 can be about 5mm larger than the outer diameter of the window to ensure the airtightness of the stacked tiles.

[0058] Moreover, the shingled stacking scheme has lower precision requirements, which is more conducive to production; for structural assembly, the consistent shingled stacking design provides space for modification of the assembly design of each component at the X-ray exit, which can meet the design requirements of different scenarios.

[0059] The long-limiting protective sleeve 2 covers the inner circumferential surface of the long-limiting tube 1, and the long-limiting protective sleeve 2 is cylindrical.

[0060] The second conical sleeve 3 includes a body section 31 and an extension section 32 connected coaxially. The body section 31 is conical, and the extension section 32 is cylindrical. The extension section 32 extends into the long beam-limiting protective sleeve 2. This allows the part of the second conical sleeve 3 that extends into the long beam-limiting protective sleeve 2 to better form a tile-like structure with the long beam-limiting protective sleeve 2, ensuring the radiation protection effect.

[0061] In addition, it should be noted that each protective sleeve is not made of a single piece of material; it can also be made of irregularly shaped radiation-shielding materials assembled in a tile-like manner.

[0062] In summary, this application discloses a radiation-proof X-ray mechanism and a dental X-ray machine. A light source protective sleeve is used to block radiation leakage from the X-ray assembly, and a beam-limiting sleeve is used to prevent X-ray leakage from the exit end of the X-ray assembly to the beam-limiting sleeve assembly. Since the inner diameter of the first end of the beam-limiting sleeve is larger than the inner diameter of the window on the light source protective sleeve, and the first end of the beam-limiting sleeve surrounds the outer periphery of the window, the beam-limiting sleeve and the light source protective sleeve are partially stacked to achieve a sealed enclosure. Even if X-rays escape outwards after passing through the window, they will be blocked by the beam-limiting sleeve, thus achieving a tight connection and protection between the light source protective sleeve and the beam-limiting sleeve, preventing X-ray leakage from gaps.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A radiation-shielding X-ray mechanism, characterized in that, Includes X-ray assembly, beam confinement assembly, light source protective sleeve, and beam confinement protective sleeve; The X-ray assembly is connected to the beam-limiting tube assembly, and the X-ray emission end of the X-ray assembly is connected to the beam-limiting channel of the beam-limiting tube assembly. The light source protective sleeve covers the outside of the X-ray assembly, and the light source protective sleeve has a window to expose the emission end through the window; The beam-limiting sleeve covers the outside or inside of the beam-limiting assembly, and the first end of the beam-limiting sleeve is connected to the light source protective sleeve. The first end of the beam-limiting sleeve surrounds the outer periphery of the window.

2. The radiation-shielding X-ray mechanism according to claim 1, characterized in that, The beam limiting tube assembly includes a conical beam limiting tube (4) and a long beam limiting tube (1). The first end of the conical beam limiting tube (4) is connected to the emission end, and the second end of the conical beam limiting tube (4) extends into the interior of the long beam limiting tube (1). The beam-limiting sleeve includes a conical beam-limiting sleeve and a long beam-limiting sleeve (2). The conical beam-limiting sleeve covers the conical beam-limiting sleeve (4), and the long beam-limiting sleeve (2) covers the long beam-limiting sleeve (1). The first end of the cone-shaped beam-limiting protective sleeve is the first end of the beam-limiting tube protective sleeve, and the second end of the cone-shaped beam-limiting protective sleeve extends into the long beam-limiting protective sleeve (2).

3. The radiation-shielding X-ray mechanism according to claim 2, characterized in that, The cone-shaped beam limiting sleeve includes a first cone sleeve (5) and a second cone sleeve (3). The first end of the first cone sleeve (5) is the first end of the cone-shaped beam limiting sleeve. The first cone sleeve (5) covers the outer circumferential surface of the cone-shaped beam limiting cylinder (4). The second cone sleeve (3) covers the inner circumferential surface of the cone-shaped beam limiting cylinder (4). The second end of the second cone sleeve (3) is the second end of the cone-shaped beam limiting sleeve. The first cone sleeve (5) and the second cone sleeve (3) partially overlap in the direction of the ray optical axis.

4. The radiation-shielding X-ray mechanism according to claim 3, characterized in that, The first conical sleeve (5) and the light source protective sleeve, the first conical sleeve (5) and the conical beam limiting tube (4), and the second conical sleeve (3) and the conical beam limiting tube (4) are connected by spot welding or adhesive bonding.

5. The radiation-shielding X-ray mechanism according to claim 3, characterized in that, The second conical sleeve (3) includes a body section (31) and an extension section (32) coaxially connected. The body section (31) is conical, and the extension section (32) is cylindrical. The extension section (32) extends into the long-limiting protective sleeve (2).

6. The radiation-shielding X-ray mechanism according to claim 2, characterized in that, The long beam limiting protective sleeve (2) covers the inner circumferential surface of the long beam limiting cylinder (1), and the long beam limiting protective sleeve (2) is cylindrical.

7. The radiation-shielding X-ray mechanism according to claim 1, characterized in that, The oil tank (7) of the X-ray assembly is in the shape of a polyhedron. The light source protective sleeve includes an outer protective sleeve (6). The outer protective sleeve (6) is a sheet of material with a length greater than the circumference of the X-ray assembly. The sheet of material is wrapped around the outer surface of the X-ray assembly and covers the side of the oil tank (7) where the emission end is exposed. The head and tail of the sheet overlap, and the overlapping area (61) corresponds to the cathode region of the X-ray tube (9) of the X-ray assembly.

8. The radiation-shielding X-ray mechanism according to claim 7, characterized in that, The light source protective sleeve also includes a radiation tube protective sleeve (8), which covers the radiation tube (9) and exposes the emission end.

9. The radiation-shielding X-ray mechanism according to claim 7 or 8, characterized in that, The protective sleeve of the light source is connected to the X-ray assembly by spot welding or adhesive bonding.

10. A dental X-ray machine, characterized in that, Includes the radiation protection X-ray mechanism as described in any one of claims 1-9.

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