X-ray tube with multiple external core columns

Abstract

The utility model discloses an external multi-stem X-ray tube, which relates to the field of X-ray tubes and comprises a glass cover, a negative pole tube is arranged on the outer surface of one end of the glass cover, a positive pole tube is arranged on the outer surface of the other end of the glass cover, a first end sealing cover is arranged on the outer surface of one end of the positive pole tube, and a fixing ring is arranged on the outer surface of one end of the negative pole tube. A second sealing end cover is arranged on the outer surface of one end of the fixing ring, a positive electrode end is arranged on the outer surface of one end of the first sealing end cover, a negative electrode end is arranged on the outer surface of one end of the second sealing end cover, and a first positioning plate is arranged on the outer wall of the positive electrode end. According to the X-ray tube with the external multi-core column, the arranged second end sealing cover can be connected to the fixing ring in a butt joint mode in the using process, an inserting-connecting groove and an inserting-connecting rod can be in butt joint, the second end sealing cover can be conveniently detached, and the X-ray tube can be conveniently detached and maintained when damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to X ray tube field, concretely relates to a kind of X ray tube of external multi-core column. BACKGROUND

[0002] External multi-core column X ray tube is a kind of special X ray tube design, belongs to vacuum electron device technical field, main feature is that its cathode assembly and anode assembly are connected and supported by multi-core column structure, to optimize the structure and performance of X ray tube, but the existing‌There is certain inconvenience when using.

[0003] In Chinese utility model patent application No. CN202222565818.0, a kind of X ray tube of external multi-core column is disclosed, by setting flat plate core column and first, second, third, fourth, fifth, sixth Kovar rod, with first, second, fourth Kovar rod supporting cathode head, with third, sixth Kovar rod connecting filament connecting column at both ends of filament, so that the high-voltage components of cathode assembly are not exposed, and both ends of filament are directly connected with third, sixth Kovar rod, without passing through cathode head, effectively prevent filament string electricity, improve the safety performance of X ray tube, but the X ray tube of external multi-core column of the utility model is inconvenient to disassemble when using Kovar rod, when installing multiple groups, it is more troublesome, in addition, the X ray tube of external multi-core column is fixed structure installation at both ends of end cover when using, there is certain inconvenience when overhauling.

[0004] Therefore, we propose a kind of X ray tube of external multi-core column. UTILITY MODEL CONTENT

[0005] The main purpose of the utility model is to provide a kind of X ray tube of external multi-core column, which can effectively solve the problems in the background art.

[0006] In order to achieve the above object, the utility model takes the technical scheme for: a X ray tube of external multi -core column, including glass cover, one end outer surface of glass cover is equipped with negative pole cylinder, the other end outer surface of glass cover is equipped with positive pole cylinder, one end outer surface of positive pole cylinder is equipped with first end cap, one end outer surface of negative pole cylinder is equipped with fixed ring, one end outer surface of fixed ring is equipped with second end cap, one end outer surface of first end cap is equipped with positive pole end, one end outer surface of second end cap is equipped with negative pole end, the outer wall of positive pole end is equipped with first locating plate, the outer wall of negative pole end is equipped with second locating plate, one end outer surface of first locating plate and second locating plate is equipped with butt joint seat, the positioning spring is equipped between first locating plate and second locating plate, the rear end outer surface of negative pole end is equipped with wire, the middle part of second end cap is equipped with insertion slot and horizontal slot, the horizontal slot is located in one side of insertion slot, one end outer surface of fixed ring is equipped with insertion rod, the middle part of horizontal slot is equipped with limiting rod, the outer wall of limiting rod is equipped with baffle, the limiting spring is equipped between baffle and horizontal slot, the outer wall of insertion rod is equipped with limiting slot, both ends outer surfaces of positioning spring are equipped with connecting plate, one end outer surface of connecting plate is equipped with Kovar alloy rod.

[0007] Preferably, the second end cap and the insertion slot are integrally formed, and the insertion slot and the horizontal slot are through structures.

[0008] Preferably, one end outer surface of the fixed ring is fixedly connected with one end outer surface of the insertion rod, and the insertion rod and the limiting slot are integrally formed.

[0009] Preferably, the horizontal slot is movably connected with the limiting rod, and the limiting rod penetrates to the outside of the second end cap.

[0010] Preferably, the baffle is welded with the limiting rod, and the limiting springs are fixedly connected with the horizontal slot and the baffle.

[0011] Preferably, both ends outer surfaces of the positioning spring are fixedly connected with the other end outer surfaces of the connecting plates, and one end outer surface of the connecting plate is fixedly connected with one end outer surface of the Kovar alloy rod.

[0012] Beneficial effects

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The second end cover is connected to the fixed ring in use, and the insertion slot and the insertion rod are connected, so that the second end cover is convenient to disassemble, and the X-ray tube is convenient to disassemble and repair when damaged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is an internal structure view of the glass cover 1 of the utility model;

[0017] Figure 3 It is a structure view of the second end cover 6 of the utility model;

[0018] Figure 4 It is a structure view of the positioning spring 12 of the utility model.

[0019] In the drawing: 1, glass cover; 2, negative electrode cylinder; 3, positive electrode cylinder; 4, first end cover; 5, fixed ring; 6, second end cover; 7, positive electrode end; 8, negative electrode end; 9, first positioning plate; 10, second positioning plate; 11, connecting seat; 12, positioning spring; 13, wire; 14, insertion slot; 15, insertion rod; 16, horizontal slot; 17, limiting rod; 18, baffle; 19, limiting spring; 20, limiting slot; 21, connecting plate; 22, Kovar alloy rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] As Figures 1-4As shown, an external multi-core column X-ray tube, including a glass cover 1, the outer surface of one end of the glass cover 1 is provided with a negative cylinder 2, the outer surface of the other end of the glass cover 1 is provided with a positive cylinder 3, the outer surface of one end of the positive cylinder 3 is provided with a first end cap 4, the outer surface of one end of the negative cylinder 2 is provided with a fixing ring 5, the outer surface of one end of the fixing ring 5 is provided with a second end cap 6, the outer surface of one end of the first end cap 4 is provided with a positive end 7, the outer surface of one end of the second end cap 6 is provided with a negative end 8, the outer wall of the positive end 7 is provided with a first positioning plate 9, the outer wall of the negative end 8 is provided with a second positioning plate 10, the outer surface of one end of the first positioning plate 9 and the second positioning plate 10 is provided with a butt joint seat 11, the first positioning plate 9 and the second positioning plate 10 are provided with a positioning spring 12, the outer surface of the rear end of the negative end 8 is provided with a wire 13, the middle of the second end cap 6 is provided with a plug-in slot 14 and a transverse slot 16, the transverse slot 16 is located on one side of the plug-in slot 14, the outer surface of one end of the fixing ring 5 is provided with a plug-in rod 15, the middle of the transverse slot 16 is provided with a limiting rod 17, the outer wall of the limiting rod 17 is provided with a baffle 18, the limiting spring 19 is arranged between the baffle 18 and the transverse slot 16, the outer wall of the plug-in rod 15 is provided with a limiting slot 20, the outer surface of both ends of the positioning spring 12 is provided with a connecting plate 21, the outer surface of one end of the connecting plate 21 is provided with a Kovar alloy rod 22.

[0022] Further, the second end cap 6 and the plug-in slot 14 are an integral structure, the plug-in slot 14 and the transverse slot 16 are a through structure, the second end cap 6 can be butt jointed to the fixing ring 5 in use, and the plug-in slot 14 and the plug-in rod 15 can be butt jointed, when the plug-in rod 15 is inserted into the plug-in slot 14, the limiting rod 17 can be pulled backward to compress the limiting spring 19 through the baffle 18, when the plug-in rod 15 and the plug-in slot 14 are butt jointed, the limiting rod 17 can be inserted into the limiting slot 20, thereby completing the butt joint installation between the second end cap 6 and the fixing ring 5, which can facilitate the disassembly of the second end cap 6 and the disassembly and repair of the X-ray tube when it is damaged.

[0023] Further, the outer surface of one end of the fixing ring 5 and the outer surface of one end of the plug-in rod 15 are fixedly connected, the plug-in rod 15 and the limiting slot 20 are an integral structure, and the limiting slot 20 is mainly used for plug-in limiting of the limiting rod 17 in use.

[0024] Further, the transverse slot 16 and the limiting rod 17 are movably connected, the limiting rod 17 penetrates to the outside of the second end cap 6, and the limiting rod 17 can fix the second end cap 6 in use.

[0025] Further, the baffle 18 and the limiting rod 17 are welded, and the limiting spring 19 is fixedly connected with the transverse slot 16 and the baffle 18, which can facilitate the rebounding and resetting of the limiting rod 17 in use.

[0026] Further, the outer surfaces of the two ends of the positioning spring 12 are fixedly connected with the outer surfaces of the other end of the connecting plate 21, the outer surfaces of one end of the connecting plate 21 are fixedly connected with the outer surfaces of one end of the Kovar alloy rod 22, the positioning spring 12 can be compressed through the connecting plate 21 in use, the spacing between the Kovar alloy rods 22 can be shrunk, the Kovar alloy rods 22 can be supported between the first end cover 4 and the second end cover 6, and the multiple groups of Kovar alloy rods 22 can be quickly disassembled and assembled.

[0027] Working principle

[0028] It should be noted that the utility model is a kind of X-ray tube of external multi-core column, when needing to install the Kovar alloy rod 22 in use, the positioning spring 12 can be first extruded by the connecting plate 21, the Kovar alloy rod 22 is shrunk between the Kovar alloy rod 22, then the Kovar alloy rod 22 is corresponded on the docking seat 11, the connecting plate 21 is loosened at this time, the Kovar alloy rod 22 is popped into the docking seat 11 by the positioning spring 12, so that the Kovar alloy rod 22 can be fixedly installed between the first end cover 4 and the second end cover 6, and the multiple groups of Kovar alloy rods 22 can be quickly disassembled and assembled, the second end cover 6 can be connected to the fixed ring 5 in use, and the plug-in slot 14 and the plug-in rod 15 can be connected, while the plug-in rod 15 is inserted into the plug-in slot 14, the limiting rod 17 can be pulled back, the limiting rod 17 is compressed by the baffle 18, the limiting spring 19 is compressed by the limiting rod 17, when the plug-in rod 15 is connected with the plug-in slot 14, the limiting rod 17 can be loosened, the limiting rod 17 is inserted into the limiting slot 20, so that the second end cover 6 and the fixed ring 5 are connected and installed, the second end cover 6 can be disassembled, and the X-ray tube can be disassembled and repaired when damaged, which is practical.

[0029] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An external multicathode X-ray tube comprising a glass envelope (1), characterized in that: The outer surface of one end of the glass cover (1) is provided with a negative electrode cylinder (2), the outer surface of the other end of the glass cover (1) is provided with a positive electrode cylinder (3), the outer surface of one end of the positive electrode cylinder (3) is provided with a first end cap (4), the outer surface of one end of the negative electrode cylinder (2) is provided with a fixing ring (5), the outer surface of one end of the fixing ring (5) is provided with a second end cap (6), the outer surface of one end of the first end cap (4) is provided with a positive electrode end (7), the outer surface of one end of the second end cap (6) is provided with a negative electrode end (8), the outer wall of the positive electrode end (7) is provided with a first positioning plate (9), the outer wall of the negative electrode end (8) is provided with a second positioning plate (10), the outer surface of one end of the first positioning plate (9) and the second positioning plate (10) is provided with a butt joint seat (11), the first positioning plate (9) and the second positioning plate (10) are provided with a positioning spring (12), the outer surface of the rear end of the negative electrode end (8) is provided with a wire (13), the middle part of the second end cap (6) is provided with a plug-in slot (14) and a transverse slot (16), the transverse slot (16) is located on one side of the plug-in slot (14), the outer surface of one end of the fixing ring (5) is provided with a plug-in rod (15), the middle part of the transverse slot (16) is provided with a limiting rod (17), the outer wall of the limiting rod (17) is provided with a baffle (18), the baffle (18) and the transverse slot (16) are provided with a limiting spring (19), the outer wall of the plug-in rod (15) is provided with a limiting slot (20), the outer surface of both ends of the positioning spring (12) is provided with a connecting plate (21), and the outer surface of one end of the connecting plate (21) is provided with a Kovar alloy rod (22).

2. The X-ray tube of claim 1, wherein: The second end cap (6) and the plug-in slot (14) are an integral molding structure, and the plug-in slot (14) and the transverse slot (16) are a through structure.

3. The X-ray tube of claim 1, wherein: The outer surface of one end of the fixing ring (5) is fixedly connected with the outer surface of one end of the plug-in rod (15), and the plug-in rod (15) and the limiting slot (20) are an integral molding structure.

4. The X-ray tube of claim 1, wherein: The transverse slot (16) is movably connected with the limiting rod (17), and the limiting rod (17) penetrates to the outside of the second end cap (6).

5. The X-ray tube of claim 1, wherein: The baffle (18) and the limiting rod (17) are weldedly connected, and the limiting springs (19) are fixedly connected with the transverse slot (16) and the baffle (18).

6. The X-ray tube of claim 1, wherein: The outer surface of both ends of the positioning spring (12) is fixedly connected with the other end of the connecting plate (21), and the outer surface of one end of the connecting plate (21) is fixedly connected with the outer surface of one end of the Kovar alloy rod (22).

Images