Novel electronic gun

Abstract

The utility model belongs to the technical field of electronic guns, and particularly relates to a novel electronic gun which comprises an insulating sleeve, an anode tube is mounted at the bottom in the insulating sleeve, an insulating cathode base is mounted at the top in the insulating sleeve, and a cathode wire holder is mounted at the top in the insulating cathode base in an inserted manner. And copper pipes are symmetrically arranged at the bottom end of the cathode wire holder. The novel electron gun is composed of an insulating sleeve, an anode tube, an insulating cathode base, a cathode wire holder fixed in the insulating cathode base, a cathode heating wire and a grid cover fixed below the insulating cathode base, and the anode tube, the insulating cathode base, the cathode heating wire and the grid cover can be taken down independently. According to the novel electronic gun, the assembly difficulty of the novel electronic gun is reduced, and when the cathode of the novel electronic gun is damaged, the novel electronic gun can be continuously used by replacing a damaged part, so that the service life of the novel electronic gun can be prolonged, and the novel electronic gun is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of electron guns, and in particular relates to a new type of electron gun. Background Art

[0002] An electron gun is a device that generates, accelerates and converges high-energy-density electron beams. It emits electron beams with a certain energy, beam current, speed and angle, also known as electron beams. Applications of electron guns include inelastic electron scattering and fluorescent screen luminescence.

[0003] The cathode, as the electron supply part of the electron gun, is often not an independent whole. It must be combined with the electron gun body structure to form a component with a complete current loop. The cathode is a consumable part in the electron gun. When some parts in the cathode are damaged, the cathode of the electron gun needs to be replaced as a whole, and many undamaged parts cannot be used, which will cause great loss. Based on this, the utility model provides a new electron gun. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a new type of electron gun, which has the characteristic of being easy to replace damaged parts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel electron gun, comprising an insulating sleeve, an anode tube is installed at the bottom of the insulating sleeve, an insulating cathode base is installed at the top of the insulating sleeve, a cathode terminal holder is plugged and installed at the top of the insulating cathode base, copper tubes are symmetrically arranged at the bottom of the cathode terminal holder, a cathode heating wire is installed between the two copper tubes, a grid cover is installed at the bottom outside the cathode terminal holder, and bumps are equidistantly arranged on the circumference of the top of the cathode terminal holder.

[0006] As a preferred technical solution for the new electron gun of the utility model, an annular baffle is provided on the top and bottom of the inner wall of the insulating sleeve, and a No. 1 internal thread is provided at the top of the inner wall of the insulating sleeve near the top annular baffle and at the bottom of the inner wall of the insulating sleeve near the bottom annular baffle.

[0007] As a preferred technical solution of the novel electron gun of the utility model, an annular groove is provided at the top edge of the anode tube, and the cross-sectional dimension of the annular groove is matched with the cross-sectional dimension of the annular baffle.

[0008] As a preferred technical solution for the new electron gun of the utility model, the top of the outer wall of the anode tube and the top of the outer wall of the insulating cathode base are both provided with a No. 1 external thread, and the No. 1 external thread and the No. 1 internal thread are connected by threads.

[0009] As a preferred technical solution for the new electron gun of the utility model, a plug hole is provided in the middle of the top of the inner wall of the insulating cathode base, the longitudinal section of the cathode terminal holder is T-shaped, and the top of the cathode terminal holder passes through the inside of the plug hole.

[0010] As a preferred technical solution of the novel electron gun of the utility model, the cathode heating wire is composed of two support rods and a spiral wire welded between the two support rods, and the inner diameters of the support rods and the copper tube are matched.

[0011] As a preferred technical solution for the new electron gun of the utility model, the bottom of the outer wall of the insulating cathode base is provided with a No. 2 external thread, the top of the inner wall of the grid cover is provided with a No. 2 internal thread, and the No. 2 internal thread and the No. 2 external thread are connected by threads.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The novel electron gun is composed of an insulating sleeve, an anode tube, an insulating cathode base, a cathode terminal holder fixed inside the insulating cathode base, a cathode heating wire and a grid cover fixed below the insulating cathode base, wherein the anode tube, the insulating cathode base, the cathode heating wire and the grid cover can be removed separately, thereby reducing the difficulty of assembling the novel electron gun. When the cathode of the novel electron gun is damaged, the novel electron gun can be continuously used by replacing the damaged parts, thereby increasing the service life of the novel electron gun and facilitating the use of the novel electron gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 3 This is an exploded view of the installation of the cathode heating wire of the utility model;

[0018] Figure 4 This is a sectional view of the installation of the insulating sleeve of the utility model.

[0019] In the figure: 1. Insulating sleeve; 2. Anode tube; 3. Insulating cathode base; 4. Socket; 5. Cathode terminal block; 6. Copper tube; 7. Cathode heating wire; 8. Grid cover; 9. Bump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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 in 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. Example

[0021] See also Figures 1 to 4 The utility model provides the following technical solutions: a novel electron gun, comprising an insulating sleeve 1, an annular baffle is arranged at the top of the inner wall of the insulating sleeve 1 and the bottom of the inner wall of the insulating sleeve 1, a No. 1 internal thread is provided at the top of the inner wall of the insulating sleeve 1 near the top annular baffle and at the bottom of the inner wall of the insulating sleeve 1 near the bottom annular baffle, an anode tube 2 is installed at the bottom of the insulating sleeve 1, an annular groove is provided at the top edge of the anode tube 2, the cross-sectional size of the annular groove is matched with the cross-sectional size of the annular baffle, and the installation of the anode tube 2 can be positioned and limited, an insulating cathode base 3 is installed at the top of the insulating sleeve 1, an outer wall of the anode tube 2 and the top of the outer wall of the insulating cathode base 3 are both provided with a No. 1 external thread, the No. 1 external thread and the No. 1 internal thread are connected by threads, which is convenient for the installation and use of the anode tube 2 and the insulating cathode base 3;

[0022] A socket 4 is provided in the middle of the top of the inner wall of the insulating cathode base 3, and a cathode terminal holder 5 is installed at the top of the inner wall of the insulating cathode base 3. The longitudinal section of the cathode terminal holder 5 is T-shaped, and the top of the cathode terminal holder 5 passes through the inside of the socket 4. Copper tubes 6 are symmetrically arranged at the bottom of the cathode terminal holder 5, and a cathode heating wire 7 is installed between the two copper tubes 6. The cathode heating wire 7 is composed of two support rods and a spiral wire welded between the two support rods. The inner diameters of the support rods and the copper tubes 6 are matched, which is convenient for the plug-in installation of the cathode heating wire 7. A grid cover 8 is installed at the outer bottom of the cathode terminal holder 5. A No. 2 external thread is provided at the bottom of the outer wall of the insulating cathode base 3, and a No. 2 internal thread is provided at the top of the inner wall of the grid cover 8. The No. 2 internal thread and the No. 2 external thread are connected by threads, which is convenient for the installation and use of the grid cover 8. Bumps 9 are equidistantly arranged on the circumference of the top of the cathode terminal holder 5.

[0023] The working principle and use process of the utility model are as follows: when the cathode of the new electron gun is damaged, the staff rotates the protrusion 9, and the rotation of the protrusion 9 drives the insulated cathode base 3 to move. When the insulated cathode base 3 is separated from the insulating sleeve 1, the staff rotates to remove the grid cover 8, and then the staff removes the damaged parts (such as the cathode heating wire 7) and replaces them. By replacing the damaged parts, the service life of the new electron gun can be increased, thereby reducing the use loss and facilitating the use of the new electron gun.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A novel electron gun, comprising an insulating sleeve (1), characterized in that: The top of the inner wall of the insulating sleeve (1) and the bottom of the inner wall of the insulating sleeve (1) are both provided with an annular baffle, and the top of the inner wall of the insulating sleeve (1) near the top annular baffle and the bottom of the inner wall of the insulating sleeve (1) near the bottom annular baffle are both provided with a No. 1 internal thread, an anode tube (2) is installed at the inner bottom of the insulating sleeve (1), and the top edge of the anode tube (2) is provided with an annular groove, and the cross-sectional size of the annular groove is matched with the cross-sectional size of the annular baffle, and the top of the outer wall of the anode tube (2) and the top of the outer wall of the insulating cathode base (3) are both provided with a No. 1 external thread, and the No. 1 external thread and the No. 1 internal thread are connected by a thread, so that An insulating cathode base (3) is installed at the top of the insulating sleeve (1), a cathode terminal holder (5) is plugged and installed at the top of the insulating cathode base (3), copper tubes (6) are symmetrically arranged at the bottom of the cathode terminal holder (5), a cathode heating wire (7) is installed between the two copper tubes (6), a grid cover (8) is installed at the bottom of the cathode terminal holder (5), a No. 2 external thread is opened at the bottom of the outer wall of the insulating cathode base (3), a No. 2 internal thread is opened at the top of the inner wall of the grid cover (8), the No. 2 internal thread and the No. 2 external thread are connected by threads, and bumps (9) are equidistantly arranged on the top of the cathode terminal holder (5).

2. The novel electron gun according to claim 1 is characterized in that: A plug hole (4) is provided in the middle of the top of the inner wall of the insulating cathode base (3); the longitudinal cross-section of the cathode terminal holder (5) is T-shaped; the top of the cathode terminal holder (5) passes through the inside of the plug hole (4).

3. The novel electron gun according to claim 1 is characterized in that: The cathode heating wire (7) is composed of two support rods and a spiral wire welded between the two support rods, and the inner diameters of the support rods and the copper tube (6) are matched.

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