CN2151484Y - Multifunctional small-size X-ray radiographic instrument - Google Patents

Abstract

The utility model relates to a multifunctional small-size X-ray radiographic instrument, which is suitable for medical diagnosis, industry fault detection and safety check. The utility model contains an insulating oil inner temperature rise self-compensating mechanism as an X-ray tube whose shielding cover and the outlet point of the X-ray is a double-layer optical stop, a viewing screen point is provided with a camera, and an automatic voltage regulator is arranged in a low-voltage DC power supply. The utility model has the advantages that the X-ray tube has a long-time work continuously and stably, the X-ray has smaller injury for an operator, the perspective result can be photographed and recorded to be kept for a long time, and the voltage of a power supply range is from 80 to 250 volt.

Description

Multifunctional small-size X-ray radiographic instrument

The utility model is a kind of multifunctional small-size X-ray machine, can be used for medical judgement, industrial flaw detection and safety inspection.

In the prior art, United States Patent (USP) 4142101 has been described a kind of mini X-ray scenograph, the problem that the utility model 87207274.6 of Shanghai Optics and Precision Mechanics institute, Chinese Academy of Sciences exists at United States Patent (USP) 4142101, x-ray source, converter and image intensifier are improved, provide that a stage body is long-pending little, easy to use, the life-span is long, the pocket X-ray machine of clear picture.The utility model 88217599.8 of Shanghai Optics and Precision Mechanics institute, Chinese Academy of Sciences is again at 87207274.6 problems that exist, improve actinogram booster change secondary and be converted to once conversion, save converter and optical amplification system, improve x-ray source intensity, provide one both to can be used for medical diagnosis, can be used for again industrial flaw detection simple in structure, volume is little, in light weight, Portable X-ray defectoscope that purposes is wide, but also there is following shortcoming in this utility model:

1) insulating oil that is potted on the X-ray tube anode is long because of the X-ray tube working time, the temperature of oil raises, pressure will increase, this will damage the shell of encapsulation, therefore for fear of oily temperature rise, can only adopt timing working, regularly shut down, work and rest are used alternatingly, and this brings very big inconvenience just for actual the use;

2) output terminal has only one deck diaphragm on the X-ray tube radome, and through the X ray of one deck diaphragm limit bundle, the X ray that also has some scatterings is encroached on the operator;

3) have only video screen to show the perspective result, can not write down file, and the result of the further analysis perspective of inconvenience;

4) the low-voltage dc power supply civil power that is only applicable to fix is 220 volts, for do not adopt 220 volts countries and regions and line voltage is crossed low or the fluctuation amplitude reaches ± 30 volts the time, machine can't operate as normal.

The purpose of this utility model is in order to overcome above-mentioned shortcoming, design a kind of oil sealing structure of improving x-ray source, eliminate the temperature rise influence automatically, accomplish more effectively shielding, the result can write down file with its perspective, and the wider multifunctional small-size X-ray machine of the low-tension supply scope of application.

Description of drawings:

In order to narrate conveniently, elder generation is to the drawing explanation of accompanying drawing.Fig. 1 provides the structural representation of this novel multifunctional mini X-ray machine; Fig. 2 provides temperature rise self compensation mechanism and the double-deck light of shielding hurdle synoptic diagram.

Multifunctional small-size X of the present utility model contains shell 1, X-ray tube 2, radome 14, double-deck diaphragm 3, X ray casting image intensifier 4, camera 5, insulating oil 6, temperature rise self compensation mechanism 7, linking arm 8, normal open switch 9, connecting line 11, handle 10, low-voltage dc power supply 12 and automatic voltage regulator 13. As shown in Figure 1.

Around these novel X-ray tube 2 anodes as x-ray source with oil sealing to reach the requirement of insulation and cooling, this part volume that temperature rise self compensation mechanism 14 has compensated increase automatically is housed in insulating oil 6.As shown in Figure 2.

The double-deck diaphragm 3 of said radome 14X ray equipped at outlet port as shown in Figure 2, ground floor diaphragm 15 is concentric with second layer diaphragm 16, second layer diaphragm 16 has a distance apart from ground floor diaphragm 15, has radome to shield between the two.Make from the X ray of ground floor diaphragm 15 scatterings to be stopped by second layer diaphragm 16, this has just prevented that X ray from encroaching on the operator.

This novel film viewing screen place is provided with camera, not only can observe at that time for the result who has an X-rayed, and all right film recording is so that the later analysis judged result.Can also permanently filing.

Be provided with automatic voltage regulator 13 in this novel low-voltage dc power supply, this automatic voltage regulator 13 is applicable to the scope of 80 volts～250 volts of input ac voltages, as long as the free voltage value of input voltage between 80 volts～250 volts,, all can make the complete machine operate as normal by the automatic adjustment of automatic voltage regulator 13.

Advantage of the present utility model:

1) owing to be provided with temperature rise self compensation mechanism in the insulating oil, in the long oil temperature rise of anode working time, during volumetric expansion, can avoid damaging X-ray tube or squeezing to decode and seal shell and cause leakage of oil to be damaged because of oil pressure increases, guaranteed the x-ray source long-term stable operation;

2) two diaphragms limit bundle shielding can have been eliminated the scattered dose that the X-ray beam that causes because of the intrinsic size of X-ray tube focal spot is dispersed effectively, thereby has guaranteed operator's safety;

3) image on the camera record video screen can significantly reduce radiation dose, and can file at any time for many people's analysis and research;

4) power supply is applicable to 80～250 volts of scopes of AC power, and this just makes this machine and not adopt the countries and regions of 220 volts of civil powers to use in the big area of civil power fluctuation amplitude.

Embodiment:

Complete machine structure as shown in Figure 1, the structure of temperature rise self compensation mechanism 13, radome 14 and double-deck diaphragm 3 is as shown in Figure 2.

Radome 14 and double-deck diaphragm 3 are all made with lead.

The machine shape volume can design growth 420mm, wide 93mm, and high 270mm, weight is less than 31kg, 80～250 volts of supply and AC voltages, direct current 12V, screen brightness＞20cd/cm ², leak ray＜0.01mR/n, scattered ray＜2.5mR/n(observation place), resolution＜49p/mm.

Complete machine can long-time continuous work, be not damaged because of the temperature of insulating oil raises.

Claims (1)

1, a kind of multifunctional small-size X-ray machine, contain shell (1), X-ray tube (2), X ray image intensifier (4), linking arm (8), normal open switch (9), connecting line (11), radome (14), handle (10) and low-voltage dc power supply (12), it is characterized in that in the insulating oil (6) of X-ray tube (2), temperature rise self compensation mechanism (7) is arranged, the X ray equipped at outlet port of radome (14) has double-deck diaphragm (3), camera (5) is arranged at the film viewing screen place, automatic voltage regulator (13) is arranged in low-voltage dc power supply.

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