Cathode ray tube focusing head structure

Abstract

The utility model relates to the technical field of ray tubes, and discloses a cathode ray tube focusing head structure which comprises a focusing head and a ceramic tube body arranged on one side of the focusing head, a mounting mechanism is arranged on the focusing head and the ceramic tube body, a dismounting mechanism is arranged on the mounting mechanism, and when a supporting block slides on the inner wall of an insertion sliding groove, the supporting block can be dismounted from the ceramic tube body. When the supporting block moves to the position of the clamping groove, the rubber column and the spring rebound, so that the supporting block can be pushed to move downwards to be clamped on the inner wall of the clamping groove, and then the focusing head is rotated clockwise, so that the supporting block is driven to rotate on the inner wall of the clamping groove; and when the positioning rod moves to the position of the clamping hole, the spring rebounds downwards again to push the positioning rod to be clamped on the inner wall of the clamping hole, so that installation can be carried out conveniently, the focusing head does not need to be rotated repeatedly, the installation efficiency is improved, and a worker can carry out installation conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of ray tube tooling, and specifically relates to a cathode ray tube focusing head structure. Background Art

[0002] The method of generating X-rays is to use accelerated electrons to strike a metal target. During the impact process, the electrons suddenly decelerate, and the kinetic energy they lose will be released in the form of photons, forming the continuous part of the X-ray spectrum, which is called bremsstrahlung. By increasing the acceleration voltage, the energy carried by the electrons increases, and it is possible to knock out the inner-layer electrons of metal atoms. Thus, a hole is formed in the inner layer, and the outer-layer electrons transition back to the inner layer to fill the hole, while emitting photons with a wavelength of about 0.1 nanometers. Since the energy released by the transition of the outer-layer electrons is quantized, the wavelengths of the emitted photons are also concentrated in certain parts, forming the characteristic lines in the X-ray spectrum, which is called characteristic radiation.

[0003] After retrieval, CN219716800U discloses a cathode ray tube focusing head structure, which better realizes the focusing of the cathode ray electron beam, making its working effect better. At the same time, the entire focusing head structure is more stably connected and more convenient to disassemble and assemble, and has good practical use and popularization value.

[0004] When installing this focusing head, threaded connection is adopted. In this way, when disassembling and assembling, the focusing head needs to be rotated repeatedly to complete the installation, which will prolong the disassembly and assembly time, thereby reducing the disassembly and assembly efficiency and making it inconvenient for the staff to perform disassembly and assembly operations.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] To solve the above technical problem that when installing this focusing head, threaded connection is adopted. In this way, when disassembling and assembling, the focusing head needs to be rotated repeatedly to complete the installation, which will prolong the disassembly and assembly time, thereby reducing the disassembly and assembly efficiency and making it inconvenient for the staff to perform disassembly and assembly operations, the basic concept of the technical solution adopted by the present utility model is:

[0007] A cathode ray tube focusing head structure, including a focusing head;

[0008] A ceramic tube body arranged on one side of the focusing head, an installation mechanism is arranged on the focusing head and the ceramic tube body, and a disassembly mechanism is arranged on the installation mechanism. The installation mechanism includes an insertion chute opened on the outer wall of the ceramic tube body:

[0009] The inner wall of the insertion chute is provided with a clamping groove, and the bottom end of the inner wall of the clamping groove is provided with a clamping hole. One end of the outer wall of the ceramic tube body is provided with a groove ring, and a rubber ring is fixedly connected to the inner wall of the groove ring. A fixing block is fixedly connected to the outer wall of the focusing head. A concave hole is provided at the bottom end of the fixing block, and a rubber column is fixedly connected to the inner wall of the concave hole. One end of the rubber column away from the inner wall of the concave hole is fixedly connected to a support block. A sliding hole is provided at the bottom end of the support block, and a spring is fixedly connected to the inner wall of the sliding hole. One end of the spring away from the inner wall of the sliding hole is fixedly connected to a positioning rod.

[0010] As a preferred embodiment of the present invention, the disassembly mechanism includes a groove opened on the outer wall of the fixing block. A rotating hole is opened in the inner wall of the groove, and a torsion spring is fixedly connected to the inner wall of the rotating hole. One end of the torsion spring away from the inner wall of the rotating hole is fixedly connected to a rotating rod. A rotating plate is fixedly connected to the outer wall of the rotating rod. A communication hole is opened at the top end of the fixing block, and a connecting column is slidably connected to the inner wall of the communication hole. The bottom end of the connecting column is fixedly connected to the top end of the positioning rod, and a force-bearing rod is fixedly penetrated through the outer wall of the connecting column.

[0011] As a preferred embodiment of the present invention, the number of the fixing blocks and the positioning rods is two each, and the fixing blocks and the positioning rods are symmetrically distributed up and down on the upper and lower sides of the outer wall of the focusing head.

[0012] As a preferred embodiment of the present invention, the inner wall of the clamping groove is fitted with the outer wall of the support block, and the outer wall of the positioning rod is fitted with the inner wall of the clamping hole.

[0013] As a preferred embodiment of the present invention, a communication groove is opened in the inner wall of the focusing head, and the communication groove is communicated with the inner wall of the concave hole opened at the bottom end of the fixing block.

[0014] As a preferred embodiment of the present invention, the inner wall of the rotating hole opened in the inner wall of the groove on the outer wall of the fixing block is fitted with the outer wall of the rotating rod.

[0015] As a preferred embodiment of the present invention, the number of the force-bearing rods is two, and the force-bearing rods are symmetrically distributed left and right on the left and right sides of the top end of the positioning rod.

[0016] The present invention has the following beneficial effects compared with the prior art:

[0017] In the present utility model, during the socketing process, the support block is aligned with the insertion chute and then inserted into it. When the support block slides on the inner wall of the insertion chute, the support block will be squeezed and move upward to exert a squeezing effect on the rubber column. At the same time, the positioning rod will also be subjected to a squeezing effect. The squeezed positioning rod will move upward and then exert a squeezing effect on the spring. As the focusing head is continuously pushed inward, the support block can be driven to move to the card slot. When it moves to the card slot position, the rubber column and the spring will simultaneously rebound, thereby pushing the support block downward to be clamped on the inner wall of the card slot. After the support block is clamped on the inner wall of the card slot, the focusing head can be rotated clockwise, thereby driving the support block to rotate on the inner wall of the card slot and simultaneously driving the positioning rod to rotate. When the positioning rod moves to the position of the card hole, the spring will rebound downward again to push the positioning rod to be clamped on the inner wall of the card hole. In this way, the installation can be carried out more conveniently without repeatedly rotating the focusing head, improving the installation efficiency and facilitating the installation by the staff.

[0018] In the present utility model, when disassembly and assembly are required, the rotating plate can be pressed downward. At this time, the rotating plate will drive the rotating rod to rotate. When the rotating rod rotates, it can drive the torsion spring to rotate. At this time, the other end of the rotating plate will tilt upward, thereby contacting and pushing the force-bearing rod to move upward. When the force-bearing rod moves upward, it will drive the connecting column to move upward, thereby driving the positioning rod to move upward, so that it disengages from the inner wall of the card hole. Then, the focusing head is rotated counterclockwise to drive the support block to move to the position of the insertion chute, and then it can be pulled out to complete the disassembly.

[0019] The following further describes in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings. Description of the Drawings

[0020] In the drawings:

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the separated structure of the present utility model;

[0023] Figure 3 is a schematic diagram of the separated structure of the installation mechanism of the present utility model;

[0024] Figure 4 is a schematic diagram of a partial structure of the installation mechanism of the present utility model;

[0025] Figure 5 is a schematic cross-sectional view of the disassembly and assembly mechanism of the present utility model.

[0026] In the figure: 1. Focusing head; 2. Ceramic tube body; 31. Installation mechanism; 311. Insertion chute; 312. Card slot; 313. Rubber ring; 314. Card hole; 315. Fixed block; 316. Rubber column; 317. Support block; 318. Spring; 319. Positioning rod; 32. Dismantling mechanism; 321. Torsion spring; 322. Rotating rod; 323. Rotating plate; 324. Connecting column; 325. Stress rod. Detailed implementation mode

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0028] As Figures 1 to 5 shown, a cathode ray tube focusing head structure includes a focusing head 1 and a ceramic tube body 2 provided on one side of the focusing head 1. It is characterized in that an installation mechanism 31 is provided on the focusing head 1 and the ceramic tube body 2, and a dismantling mechanism 32 is provided on the installation mechanism 31. The installation mechanism 31 includes an insertion chute 311 opened on the outer wall of the ceramic tube body 2, a card slot 312 opened on the inner wall of the insertion chute 311, a card hole 314 opened at the bottom end of the inner wall of the card slot 312, a groove ring opened on the outer wall of one end of the ceramic tube body 2, a rubber ring 313 fixedly connected to the inner wall of the groove ring, a fixed block 315 fixedly connected to the outer wall of the focusing head 1, a concave hole opened at the bottom end of the fixed block 315, a rubber column 316 fixedly connected to the inner wall of the concave hole, a support block 317 fixedly connected to the end of the rubber column 316 away from the inner wall of the concave hole, a sliding hole opened at the bottom end of the support block 317, a spring 318 fixedly connected to the inner wall of the sliding hole, and a positioning rod 319 fixedly connected to the end of the spring 318 away from the inner wall of the sliding hole.

[0029] Furthermore, the numbers of the fixed block 315 and the positioning rod 319 are both two, and the fixed block 315 and the positioning rod 319 are symmetrically distributed up and down on the upper and lower sides of the outer wall of the focusing head 1. In this way, the upper and lower ends of the focusing head 1 can be simultaneously clamped and supported, thus ensuring the stability after clamping and installation.

[0030] Furthermore, the inner wall of the card slot 312 is adapted to the outer wall of the support block 317, and the outer wall of the positioning rod 319 is adapted to the inner wall of the card hole 314. In this way, the outer wall of the support block 317 and the inner wall of the card slot 312 can be closely fitted, thus ensuring the stability of the clamping. At the same time, the setting of the positioning rod 319 and the card hole 314 can also increase the stability of the clamping.

[0031] Even further, a communication groove is opened in the inner wall of the focusing head 1, and the communication groove is communicated with the inner wall of the concave hole opened at the bottom end of the fixed block 315. In this way, the fixed block 315 can have space to move up and down, thus facilitating clamping on the inner wall of the card slot 312.

[0032] The disassembly mechanism 32 includes a groove formed in the outer wall of the fixed block 315. A rotating hole is formed in the inner wall of the groove. A torsion spring 321 is fixedly connected to the inner wall of the rotating hole. One end of the torsion spring 321 away from the inner wall of the rotating hole is fixedly connected to a rotating rod 322. A rotating plate 323 is fixedly connected to the outer wall of the rotating rod 322. A communication hole is formed at the top end of the fixed block 315. A connecting column 324 is slidably connected to the inner wall of the communication hole. The bottom end of the connecting column 324 is fixedly connected to the top end of the positioning rod 319. A force-bearing rod 325 is fixedly penetrated through the outer wall of the connecting column 324.

[0033] Furthermore, the inner wall of the rotating hole formed in the inner wall of the groove on the outer wall of the fixed block 315 is fitted and adapted to the outer wall of the rotating rod 322, so as to ensure the tight fit between the outer wall of the rotating rod 322 and the inner wall of the rotating hole, thereby ensuring the stability of the rotating rod 322 during rotation.

[0034] Moreover, the number of the force-bearing rods 325 is two. The force-bearing rods 325 are distributed in a left-right symmetric structure on the left and right sides of the top end of the positioning rod 319. In this way, the left and right sides of the force-bearing rods 325 can be supported and applied force synchronously, so as to drive the positioning rod 319 to move up and down more smoothly.

[0035] The implementation principle of the cathode ray tube focusing head structure in this embodiment is as follows: When installation is required, the focusing head 1 can be sleeved on the outer wall of the ceramic tube body 2. During the sleeving process, the support block 317 is aligned with the insertion chute 311 and then inserted into it. When the support block 317 slides on the inner wall of the insertion chute 311, the support block 317 will be squeezed upward to squeeze the rubber column 316. At the same time, the positioning rod 319 will also be squeezed. The squeezed positioning rod 319 will move upward and then squeeze the spring 318. As the focusing head 1 is continuously pushed inward, the support block 317 can be driven to move to the card slot 312. When it moves to the position of the card slot 312, the rubber column 316 and the spring 318 will simultaneously rebound, so as to push the support block 317 to move downward and be clamped on the inner wall of the card slot 312. After the support block 317 is clamped on the inner wall of the card slot 312, the focusing head 1 can be rotated clockwise, thereby driving the support block 317 to rotate on the inner wall of the card slot 312 and driving the positioning rod 319 to rotate at the same time. When the positioning rod 319 moves to the position of the card hole 314, the spring 318 will rebound downward again to push the positioning rod 319 to be clamped on the inner wall of the card hole 314. In this way, the installation can be carried out more conveniently without repeatedly rotating the focusing head 1, improving the installation efficiency and facilitating the installation by the staff.

[0036] When disassembly is required, the rotating plate 323 can be pressed downward. At this time, the rotating plate 323 will drive the rotating rod 322 to rotate. When the rotating rod 322 rotates, it can drive the torsion spring 321 to rotate. At this time, the other end of the rotating plate 323 will tilt upward, thereby contacting and pushing the force-receiving rod 325 to move upward. When the force-receiving rod 325 moves upward, it will drive the connecting column 324 to move upward, thereby driving the positioning rod 319 to move upward, so that it disengages from the inner wall of the card hole 314. Then, rotate the focusing head 1 counterclockwise to drive the support block 317 to move to the position of the insertion chute 311, and then pull it out to complete the disassembly.

Claims

1. A cathode ray tube focusing head structure, comprising a focusing head (1); The ceramic tube body (2) arranged on one side of the focusing head (1) is characterized in that: The focusing head (1) and the ceramic tube body (2) are provided with a mounting mechanism (31), and the mounting mechanism (31) is provided with a disassembly mechanism (32). The mounting mechanism (31) comprises an insertion and sliding groove (311) provided on the outer wall of the ceramic tube body (2): The inner wall of the insertion slide groove (311) is provided with a slot (312), the inner wall bottom end of the slot (312) is provided with a slot hole (314), the outer wall of one end of the ceramic tube body (2) is provided with a groove ring, the inner wall of the groove ring is fixedly connected to a rubber ring (313), the outer wall of the focusing head (1) is fixedly connected to a fixing block (315), the bottom end of the fixing block (315) is provided with a concave hole, the inner wall of the concave hole is fixedly connected to a rubber column (316), the end of the rubber column (316) away from the inner wall of the concave hole is fixedly connected to a support block (317), the bottom end of the support block (317) is provided with a sliding hole, the inner wall of the sliding hole is fixedly connected to a spring (318), and the end of the spring (318) away from the inner wall of the sliding hole is fixedly connected to a positioning rod (319).

2. A cathode ray tube focusing head structure according to claim 1, characterized in that: The disassembly mechanism (32) comprises a groove formed on the outer wall of the fixed block (315), the inner wall of the groove is formed with a rotating hole, the inner wall of the rotating hole is fixedly connected to a torsion spring (321), one end of the torsion spring (321) away from the inner wall of the rotating hole is fixedly connected to a rotating rod (322), the outer wall of the rotating rod (322) is fixedly connected to a rotating plate (323), the top of the fixed block (315) is formed with a connecting hole, the inner wall of the connecting hole is slidably connected to a connecting column (324), the bottom end of the connecting column (324) is fixedly connected to the top of the positioning rod (319), and the outer wall of the connecting column (324) is fixedly penetrated by a force-bearing rod (325).

3. A cathode ray tube focusing head structure according to claim 1, characterized in that: The number of the fixing blocks (315) and the number of the positioning rods (319) are both two, and the fixing blocks (315) and the positioning rods (319) are distributed on the upper and lower sides of the outer wall of the focusing head (1) in an upper and lower symmetrical structure.

4. A cathode ray tube focusing head structure according to claim 1, characterized in that: The inner wall of the clamping slot (312) fits in contact with the outer wall of the support block (317), and the outer wall of the positioning rod (319) fits in contact with the inner wall of the clamping hole (314).

5. A cathode ray tube focusing head structure according to claim 1, characterized in that: The inner wall of the focusing head (1) is provided with a communication groove, and the communication groove is connected to the inner wall of the concave hole provided at the bottom end of the fixing block (315).

6. A cathode ray tube focusing head structure according to claim 2, characterized in that: The inner wall of the rotating hole formed on the inner wall of the groove on the outer wall of the fixing block (315) fits snugly with the outer wall of the rotating rod (322).

7. A cathode ray tube focusing head structure according to claim 2, characterized in that: There are two force-bearing rods (325), and the force-bearing rods (325) are distributed on the left and right sides of the top end of the positioning rod (319) in a left-right symmetrical structure.

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