Portable low-dose X-ray equipment for radiographic image diagnosis

Abstract

The invention discloses a portable low-dose X-ray device for radiographic image diagnosis, and relates to the technical field of medical instruments, the portable low-dose X-ray device for radiographic image diagnosis comprises an X-ray machine main body which is internally provided with an oil cavity for storing insulating oil; a detection hole is formed in one end face of the X-ray machine body, and a pressure plunger is slidably arranged in the X-ray machine body and used for pushing the pressure plunger to start a detection switch under the action of oil pressure. The rotating part is hinged to the top of the oil cavity; when the oil cavity inclines, the internal air layer moves along with angle change, when the oil level is higher than the detection hole and the oil cavity inclines towards the end of the sealing cover, the air layer moves to the detection hole area, oil flows to the lower position under the action of gravity, and due to the fact that the hinge point of the rotating part deviates from the center and the right end is long, the oil enters the sealing cover after overflowing the opening in the left end, the oil flows out of the detection hole. And the right end falls due to unbalanced torque caused by increase of oil quantity, the connecting piece is pulled to drive the elastic triggering piece to deform, the triggering piece abuts against the pressure plunger to continuously press the switch, and false alarm is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a portable low-dose X-ray device for radiological imaging diagnosis. Background Art

[0002] A portable low-dose X-ray machine is a miniaturized device that integrates an X-ray generator, an image acquisition system, and a control module. It is mainly used for instant imaging in the fields of medical diagnosis and industrial inspection. Its core components include a high-frequency inverter power supply, a carbon nanotube X-ray tube, and a digital detector. By optimizing the ray emission and dose control technology, the device can be made portable while maintaining the imaging function.

[0003] The X-ray tube is usually placed in an X-ray tube sleeve filled with cooling oil. When the X-ray tube is working, the temperature of the anode target surface can reach thousands of degrees Celsius, so cooling oil is needed to take away the heat through heat conduction and convection. There is a sealing cover at one end of the X-ray tube sleeve, and a detection hole is opened on the sealing cover. There is a trigger mechanism in the detection hole. When the oil is sufficient, the oil pressure will continue to resist the trigger mechanism in the detection hole. When the oil level is lower than the detection hole, the trigger mechanism will reset due to the loss of oil pressure support, and then trigger an alarm signal to indicate insufficient oil;

[0004] However, small X-ray machines will be in a shaking state during handheld operation. Even when not in use, external factors will affect the shaking of the X-rays, and the oil in the X-ray tube sleeve will also shake. When the oil in the X-ray tube sleeve drops a part but does not reach the warning line, an air layer will form above the tube sleeve after the oil level drops. Then the shaking of the oil will cause the air layer to reach the detection hole. Due to compressibility, the oil pressure cannot maintain the state of the trigger mechanism, which will cause misjudgment, causing the X-ray machine to frequently sound alarms when in use, which not only causes misjudgment by the user, but also accelerates the loss of the life of the trigger switch.

[0005] Even if the user tries his best to control his hands from shaking, there will still be continuous shaking when holding the device, even if it is imperceptible to the naked eye. This shaking mainly comes from the physiological characteristics of the human body. The human muscles are always in a state of slight tremor. Even if you try to stay still, the transmission of nerve signals and the tiny contraction of muscle fibers will cause displacement. Therefore, this shaking is unavoidable. The core design of portable devices is lightweight. If auxiliary tools such as tripods are added, the weight and volume of the device will increase, which goes against the original intention of portability. Summary of the invention

[0006] The object of the present invention is to provide a portable low-dose X-ray device for radiological imaging diagnosis to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides a portable low-dose X-ray device for radiological imaging diagnosis, comprising an X-ray machine body, an oil chamber inside which is used to store insulating oil; a detection hole is provided on one end surface of the X-ray machine body, a pressure plunger is slidably provided inside which is used to push the pressure plunger under the action of oil pressure to start the detection switch; and further comprising,

[0008] The rotating part is hinged to the top of the oil chamber, the hinge point is deviated from the center point of the rotating part to the side away from the detection hole, and the interior of the rotating part is connected to both ends;

[0009] The elastic trigger part is arranged in the detection hole and can move axially relative to the detection hole. The rotating part and the elastic trigger part are connected by a connecting piece. When the X-ray machine body is tilted and the insulating oil loses the squeezing of the pressure plunger, the part of the insulating oil exceeding the hinge point of the rotating part causes the rotating part to rotate. The elastic trigger part and the pressure plunger are driven by the connecting piece to always keep squeezing. When there is no oil in the oil chamber, one end of the elastic trigger part contacts the pressure plunger.

[0010] Furthermore, the rotating part is laterally arranged in the oil chamber, and the center point of the rotating part is biased toward the direction of the center point of the oil chamber away from the detection hole. A fixed frame is arranged above the oil chamber, and the fixed frame is located at the hinge point of the rotating part. The fixed frame is located on the side of the center point of the rotating part away from the detection hole. The top of the fixed frame is connected to the inner wall of the oil chamber, and the bottom thereof is hinged to the top of the rotating part.

[0011] Furthermore, the elastic trigger part is set to be arc-shaped, one end of the elastic trigger part is connected to the inner wall of the detection hole, and the other end is in contact with the outer wall of the pressure plunger, and the lowest point of the outer arc convex surface of the elastic trigger part is vertically downward.

[0012] Furthermore, the X-ray machine body is further provided with a connecting cavity, one end of which vertically corresponds to the end of the rotating part close to the detection hole, and the other end of which extends into the detection hole and corresponds to the arc-shaped convex surface of the elastic trigger part;

[0013] One end of the connecting piece is connected to one end of the rotating part close to the detection hole, and the other end of the connecting piece extends through the connecting cavity to the detection hole and is connected to the center point of the arc surface of the elastic trigger part.

[0014] Furthermore, the fixing frame is provided with inclined surfaces on both sides, the two inclined surfaces respectively correspond to the two open ends of the rotating part, the lower ends of the two inclined surfaces are close to the center point of the bottom of the fixing frame, and the bottom end of the fixing frame abuts against the top of the rotating part;

[0015] Two connecting rods are installed on the top of the rotating part. One end of the connecting rod away from the rotating part is rotatably connected to the outer wall of the fixing frame, and the connecting rod is located between the two inclined surfaces.

[0016] Furthermore, a floating ball is provided in the rotating part, and slideways are opened on the inner walls on both sides of the rotating part. A counterweight ball is slidably connected in the slideway, and the outer wall of the counterweight ball is in contact with the inner wall of the slideway. The area where the two counterweight balls are located outside the slideway is connected to the outside of the floating ball.

[0017] Furthermore, an elastic plate is provided in the rotating part, the elastic plate is elastic, the two ends of the elastic plate and the two ends of the rotating part are in the same vertical plane, one end of the elastic plate is connected to the inner bottom wall of one of the openings of the rotating part, and the other end of the elastic plate is tilted upward and abuts against the inner top wall of the opening at the other end of the rotating part;

[0018] An upwardly inclined end of the elastic plate is provided with an inclined end, wherein the inclined end has an arc and extends toward a direction in which one end of the elastic plate is connected with the rotating part.

[0019] Furthermore, a placement groove is provided in the connecting cavity, the inner wall of the placement groove is rotatably connected to a fixing rod, a pressure roller is installed on the outer wall of the fixing rod, the placement groove is also provided with a strip opening connected to the connecting cavity, the outer wall of the pressure roller extends into the connecting cavity through the strip opening and abuts against the outer wall of the connecting piece, the inner wall of the connecting cavity is also rotatably connected to a rotating rod, and the outer wall of the connecting piece is tightly attached to the outer wall of the rotating rod.

[0020] Furthermore, the connecting cavity is provided with an entrance and a through opening, the entrance is located above the closed end of the rotating part, an end of the connecting piece away from the rotating part passes through the entrance into the connecting cavity, and an outer wall of the entrance is in close contact with an outer wall of the connecting piece;

[0021] The through opening is located in the detection hole, and the connecting piece in the communication cavity extends through the through opening to the detection hole and is connected with the outer wall of the elastic triggering part.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, when the oil chamber is tilted, the internal air layer is displaced with the angle change. When the oil level is higher than the detection hole and the oil chamber is tilted toward the sealing cover end, the air layer moves to the detection hole area, and the oil flows downward under the action of gravity. Since the hinge point of the rotating part is offset from the center and the right end is longer, after the oil flows over the opening at the left end, the right end falls due to an unbalanced torque caused by the increase in oil volume, and the pulling connection drives the elastic trigger plate to deform. The trigger plate resists the pressure plunger and continuously presses the switch to avoid false alarms.

[0024] 2. In the present invention, when the oil level is low, the oil flows in from the opening on the left side of the rotating part, pushing the internal float to drive the counterweight block in the slideway to move. The float is guided by the buoyancy to move but does not hinder the entry of oil. The counterweight block moves to the right side to increase the torque at this end, assisting the rotating part to overcome the tilt resistance and fall, ensuring that the switch can still be triggered by the linkage of gravity and buoyancy when the oil level is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the X-ray machine body and the sealing cover in the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the X-ray machine body in the present invention;

[0028] Figure 4 It is a cross-sectional schematic diagram of the main body of the X-ray machine in the present invention;

[0029] Figure 5 It is a schematic diagram of the connection structure between the sealing cover and the detection hole in the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure between the rotating part and the connecting member in the present invention;

[0031] Figure 7 It is a schematic diagram of the connection structure between the detection hole and the elastic trigger part in the present invention;

[0032] Figure 8 It is a schematic diagram of the connection structure between the fixed rod and the pressure roller in the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the rotating part in the present invention;

[0034] Fig.10 It is a cross-sectional schematic diagram of the rotating part in the present invention.

[0035] In the figure: 1, X-ray machine body; 101, oil chamber;

[0036] 2. Sealing cover; 3. Detection hole; 4. Rotating part; 5. Fixed frame; 501. Inclined surface; 6. Connecting cavity; 7. Connecting piece; 8. Elastic triggering part; 9. Pressure plunger; 10. Through port; 11. Connecting rod; 12. Rotating rod; 13. Placement groove; 14. Strip port; 15. Fixed rod; 16. Pressing roller; 17. Entrance port; 18. Slideway; 19. Counterweight ball; 20. Floating ball; 21. Elastic plate; 22. Warped end. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention provides a technical solution:

[0039] See also Figure 1-Figure 10 As shown, a portable low-dose X-ray device for radiological imaging diagnosis includes an X-ray machine body 1, which has an oil chamber 101 inside for storing insulating oil; a detection hole 3 is provided on one end surface of the X-ray machine body 1, and a pressure plunger 9 is slidably provided inside, which is used to push the pressure plunger 9 under the action of oil pressure to start the detection switch; and further includes,

[0040] The rotating part 4 is hinged to the top of the oil chamber 101, and the hinge point deviates from the center point of the rotating part 4 to the side away from the detection hole 3, and the interior of the rotating part 4 is connected to both ends;

[0041] The elastic trigger part 8 is arranged in the detection hole 3 and can move axially relative to the detection hole 3. The rotating part 4 is connected to the elastic trigger part 8 by a connecting piece 7. When the X-ray machine body 1 is tilted and the insulating oil loses the squeezing of the pressure plunger 9, the insulating oil exceeds the hinge point of the rotating part 4, causing the rotating part 4 to rotate. The elastic trigger part 8 and the pressure plunger 9 are always squeezed by the connecting piece 7. When there is no oil in the oil chamber 101, one end of the elastic trigger part 8 contacts the pressure plunger 9.

[0042] Two sealing covers 2 are also installed on the X-ray machine body 1, which are used to block the entrances and exits of the oil chamber 101 at both ends. Among them, the detection hole 3 is opened on one of the sealing covers 2, which is used to detect the oil amount in the oil chamber 101, and the other sealing cover 2 has a component for adding oil to the oil chamber 101. The two sealing covers 2 have different functions, but they can both block the oil chamber 101;

[0043] When the oil overflows the detection hole 3, the oil pressure will press against the pressure plunger 9, so that the pressure plunger 9 presses against the detection switch in the detection hole 3. When the oil level is lower than the detection hole 3, the oil pressure is not enough to squeeze the pressure plunger 9. At this time, the pressure plunger 9 will move away from the mechanism under the elastic force of the original mechanism. After the pressure plunger 9 no longer squeezes the mechanism, the mechanism relaxes and triggers an external signal device such as a switch or sensor, indicating that the oil level is insufficient.

[0044] Next, Figure 5 and Figure 6From the perspective of, these two figures show the state that after the X-ray machine body 1 and the oil chamber 101 are tilted, the air layer inside the oil chamber 101 is located at the position of the detection hole 3. At this time, there is a lack of oil squeezing in the detection hole 3. When the X-ray machine body 1 is parallel and the oil is not lower than the detection hole 3, the air layer in the oil chamber 101 is parallel to the top of the oil chamber 101, that is, the area where the rotating part 4 is. When the oil chamber 101 is tilted, the air layer will move to the detection hole 3 only when the sealing cover 2 is tilted upward at one end, then the oil on the left side of the oil chamber 101 will move to the right. Specifically, the oil on the right side moves to the lower left due to the tilt, while the oil on the upper left side moves to the right. At this time, the air layer is at the upper right corner of the oil chamber 101;

[0045] After the oil on the left moves toward the right, the oil will first pass through the open end on the left side of the rotating part 4. When there is more oil, the rotating part 4 will be completely buried when the air layer reaches the detection hole 3, and when there is less oil, the oil will also bury most of the rotating part 4. In short, the oil will pass over the position of the hinge point and exceed the center point of the rotating part 4. Only when the oil itself is lower than the detection hole 3, the oil will not overflow the rotating part 4 when the oil chamber 101 tilts until the air layer reaches the detection hole 3. Therefore, when the oil level is higher than the detection hole 3 or parallel to the detection hole 3, the oil chamber 101 tilts until the air layer reaches the detection hole 3, and the oil will definitely overflow half of the rotating part 4.

[0046] It can be seen from the figure that the hinge point is not at the central symmetric point of the rotating part 4. The rotating part 4 is divided into left and right ends from the position of the hinge point. The right end of the rotating part 4 is longer than the left end of the rotating part 4. Since the connecting member 7 pulls the right end of the rotating part 4, the rotating part 4 is in a parallel state in the initial state. Because the rotating part 4 itself is not heavy, when the rotating part 4 is empty, the weight of the right end of the rotating part 4 is not enough to pull the connecting member 7 downward.

[0047] After the oil chamber 101 is tilted, the oil on the left side overflows the rotating part 4, and the oil enters the rotating part 4 through the open end of the rotating part 4. After the oil passes the hinge point, the weight exerted by the oil in the rotating part 4 on the rotating part 4 causes the right end of the rotating part 4 to tilt downward, and then the oil flows through the rotating part 4 to the right end of the rotating part 4. When the rotating part 4 is completely overflowed in the oil, the oil fills the space in the rotating part 4, and the long right end of the rotating part 4 is inevitably tilted downward due to the increased weight of the water inflow and the unbalanced torque;

[0048] When the right end of the rotating part 4 tilts downward, it will pull one end of the connecting member 7 to move downward, and the other end of the connecting member 7 will pull the elastic trigger part 8. Figure 7The initial shape of the elastic trigger part 8 is an arc shape. The connecting member 7 pulls the middle of the elastic trigger part 8 upward, that is, in the inner arc direction, so that the elastic trigger part 8 is deformed in the inner arc direction. When the elastic trigger part 8 is deformed, the end of the elastic trigger part 8 that abuts against the pressure plunger 9 will also push the pressure plunger 9 to move toward the switch, so that the pressure plunger 9 continues to abut against the switch.

[0049] When the oil chamber 101 returns to the parallel state, the oil in the rotating part 4 will also flow out from the right end of the rotating part 4 along the inclined rotating part 4 .

[0050] See also Figure 3-Figure 9 The rotating part 4 is laterally arranged in the oil chamber 101, and the center point of the rotating part 4 is biased toward the direction where the center point of the oil chamber 101 is away from the detection hole 3. A fixing frame 5 is arranged above the oil chamber 101, and the fixing frame 5 is located at the hinge point of the rotating part 4. The fixing frame 5 is located on the side where the center point of the rotating part 4 is away from the detection hole 3. The top of the fixing frame 5 is connected to the inner wall of the oil chamber 101, and the bottom thereof is hinged to the top of the rotating part 4.

[0051] by Figure 4 From the perspective of , the position of the rotating part 4 is more inclined to the left side of the oil chamber 101, so that when the air layer approaches the detection hole 3, the oil will also cover the rotating part 4 at the same time, and the position of the rotating part 4 is closer to the left side of the oil chamber 101, so when the air layer reaches the detection hole 3, the oil can cover the rotating part 4 in advance, and the fixing frame 5 fixes the rotating part 4 in the oil chamber 101.

[0052] See also Figure 7 The elastic trigger part 8 is set to be arc-shaped, one end of the elastic trigger part 8 is fixedly connected to the inner wall of the detection hole 3, and the other end is in contact with the outer wall of the pressure plunger 9, and the lowest point of the outer arc convex surface of the elastic trigger part 8 is vertically downward.

[0053] The outer arc surface of the elastic trigger part 8 is downward, so when the connecting member 7 pulls the elastic trigger part 8 upward, it pulls the elastic trigger part 8 in the direction of the inner arc, causing the elastic trigger part 8 to deform in the direction of the inner arc. As the elastic trigger part 8 deforms, the arc becomes smaller, and the end of the elastic trigger part 8 that abuts against the pressure plunger 9 will also push the pressure plunger 9 to move toward the switch, causing the pressure plunger 9 to continue to abut against the switch.

[0054] See also Figure 5-Figure 8 The X-ray machine body 1 is also provided with a connecting cavity 6, one end of which is vertically corresponding to the end of the rotating part 4 close to the detection hole 3, and the other end of which extends into the detection hole 3 and corresponds to the arc-shaped convex surface of the elastic trigger part 8;

[0055] One end of the connecting member 7 is fixedly connected to one end of the rotating part 4 close to the detection hole 3 , and the other end of the connecting member 7 extends through the connecting cavity 6 into the detection hole 3 and is fixedly connected to the center point of the arc surface of the elastic trigger part 8 .

[0056] When the right end of the rotating part 4 pulls the end connected to the connecting piece 7 downward, the rest of the connecting piece 7 will slide in the connecting cavity 6, and then the other end of the connecting piece 7 will pull the center point of the arc surface of the elastic trigger part 8 to deform in the inner arc direction. When the pulling force acts through the center point, the forces on both sides of the elastic trigger part 8 are symmetrically distributed, and the deformation direction is more uniform, avoiding the elastic trigger part 8 from being twisted or tilted due to unilateral force. Since one end of the elastic trigger part 8 is fixed on the detection hole 3, only the end of the elastic trigger part 8 that contacts the pressure plunger 9 will move after the elastic trigger part 8 is deformed;

[0057] One end of the connecting member 7 is fixedly connected to the edge wall of the outlet at the right end of the rotating part 4 and does not block the outlet at the right end of the rotating part 4 .

[0058] See also Figure 8 , both sides of the fixing frame 5 are provided with inclined surfaces 501, the two inclined surfaces 501 correspond to the two open ends of the rotating part 4 respectively, the lower ends of the two inclined surfaces 501 are close to the center point of the bottom of the fixing frame 5, and the bottom end of the fixing frame 5 is against the top of the rotating part 4;

[0059] Two connecting rods 11 are fixedly mounted on the top of the rotating part 4 . One end of the connecting rod 11 away from the rotating part 4 is rotatably connected to the outer wall of the fixing frame 5 . The connecting rod 11 is located between the two inclined surfaces 501 .

[0060] The rotating part 4 is rotatably connected to the fixing frame 5 through the connecting rod 11, so that when the rotating part 4 is tilted, the end connected to the fixing frame 5 through the connecting rod 11 can rotate along the fixing frame 5. If the rotating part 4 and the fixing frame 5 are fixedly connected, when the oil chamber 101 is tilted, the rotating part 4 will also tilt along with the oil chamber 101, so the oil in the rotating part 4 will be in the same plane as the tilted oil in the oil chamber 101. When the amount of oil is relatively small, if the oil level after tilting is near the fixing frame 5, then the rotating part 4 is likely to have a small tilt angle due to too little oil in the rotating part 4.

[0061] The connection rod 11 is connected to the fixed frame 5 by rotation, so that the rotating part 4 is more likely to tilt downward due to the longer right end. Figure 8 It can be seen that inclined surfaces 501 are provided on the left and right sides of the fixing frame 5 close to the top of the rotating part 4, which makes the contact area between the bottom of the fixing frame 5 and the rotating part 4 smaller. When the rotating part 4 tilts left and right, the left and right ends of the rotating part 4 will alternately approach the two inclined surfaces 501, which provides space for the tilting of the rotating part 4 to avoid being blocked by the bottom end of the fixing frame 5.

[0062] See also Figure 6-Figure 9A floating ball 20 is also provided in the rotating part 4, and slideways 18 are opened on the inner walls on both sides of the rotating part 4. A counterweight ball 19 is slidably connected in the slideway 18, and the outer wall of the counterweight ball 19 is in contact with the inner wall of the slideway 18. The area where the two counterweight balls 19 are located outside the slideway 18 is fixedly connected to the outside of the floating ball 20, and the two ends of the slideway 18 are in a closed state, so the counterweight ball 19 will not fall out of the slideway 18.

[0063] according to Figure 6 From the perspective in, when the oil is slightly less and the rotating part 4 is mostly buried, the oil cannot completely overflow the rotating part 4, which will cause the right end of the rotating part 4 to tilt downward at a smaller angle, resulting in insufficient pulling force on the connecting piece 7. Therefore, a floating ball 20 and a counterweight ball 19 are arranged at the opening at the left end of the rotating part 4. When the oil overflows the left opening end of the rotating part 4, the oil enters the rotating part 4 and pushes the lighter floating ball 20 to move deep into the rotating part 4. The floating ball 20 does not completely fit the inner wall of the rotating part 4, so it will not affect the entry of the oil, and the two counterweight balls 19 will follow the floating ball 20 to slide along the slideway 18;

[0064] The weight ball 19 is a solid body and relatively has some weight. After the oil pushes the float 20 and the weight ball 19 over the fixing frame 5, the weight ball 19 can add a part of the weight to the right end of the rotating part 4. Of course, this weight will not exceed the weight of the oil in the rotating part 4. This is to avoid that when the oil level is near the fixing frame 5, there is less oil in the rotating part 4, and it is likely that the tilting weight will not be reached. In addition, the rotating part 4 is tilted. Therefore, by adding weight to the weight ball 19, the right end of the rotating part 4 can be tilted downward to ensure that the right end of the rotating part 4 can pull the connecting piece 7.

[0065] After the right end of the rotating part 4 tilts downward, the weight ball 19 will also slide to the right end of the rotating part 4, and the oil in the rotating part 4 will also flow out from the right end of the rotating part 4, still referring to Figure 6 In the figure, after the rotating part 4 tilts downward, the left end of the rotating part 4 is still in the oil, and the oil will continue to enter the rotating part 4, while the right end of the rotating part 4 floats at the junction of the oil and air layers, because the float 20 will stay at the oil level line after moving to the right end of the rotating part 4. At this time, the pulling force of the right end of the rotating part 4 on the connecting member 7 is enough to cause the elastic trigger part 8 to be pulled and deformed;

[0066] According to Figure 7 It can be seen that the elastic trigger part 8 only needs to be applied with a small pulling force, and the right end of the rotating part 4 does not need to be tilted a long distance. Because the pressure plunger 9 is in the state of squeezing the switch, and the right end of the elastic trigger part 8 is already close to the pressure plunger 9 when the elastic trigger part 8 is not deformed, when the pressure plunger 9 is about to release the switch, the deformed elastic trigger part 8 will immediately extend toward the pressure plunger 9, pressing against the pressure plunger 9 to continuously press the switch.

[0067] See also Fig.10 An elastic plate 21 is also provided in the rotating part 4. The elastic plate 21 is elastic. Both ends of the elastic plate 21 are in the same vertical plane as both ends of the rotating part 4. One end of the elastic plate 21 is fixedly connected to the inner bottom wall of one of the openings of the rotating part 4. The other end of the elastic plate 21 is tilted upward and abuts against the inner top wall of the opening at the other end of the rotating part 4.

[0068] An upwardly tilted end of the elastic plate 21 is fixedly mounted with an upturned end 22 . The upturned end 22 has an arc and extends in a direction in which one end of the elastic plate 21 is fixedly connected to the rotating part 4 .

[0069] The elastic plate 21 has elasticity. Before the oil enters the rotating part 4, the elastic plate 21 Fig.10 The right end of the rotating part 4 is tilted. When the oil enters the rotating part 4, the oil pressure will press the elastic plate 21, so that the right end of the elastic plate 21 slides downward along the inner wall of the rotating part 4. The elastic plate 21 will not push the oil out when the oil overflows the rotating part 4. This is because the outlet at the left end of the rotating part 4 is inside the oil. The oil in the oil chamber 101 wraps up the rotating part 4. At this time, the oil pressure is heavy and the elastic plate 21 cannot rebound.

[0070] After the oil leaves the rotating part 4, the elastic plate 21 is only subjected to the pressure from the residual oil inside the rotating part 4. The amount of oil is small and the pressure is not great. Therefore, the elastic plate 21 will rebound to push out the residual oil and push the float 20 back to the left end of the rotating part 4 to return the float 20 to its initial position. The tilted end 22 can limit the float 20. When the elastic plate 21 is in a plane, the tilted end 22 protrudes upward and blocks the float 20 to prevent the float 20 from being pushed out of the rotating part 4 from the right end of the rotating part 4 by the oil.

[0071] See also Figure 8 A placement groove 13 is also provided in the connecting chamber 6, and a fixing rod 15 is rotatably connected to the inner wall of the placement groove 13, and a pressure roller 16 is fixedly installed on the outer wall of the fixing rod 15. The placement groove 13 also has a strip opening 14 connected to the connecting chamber 6, and the outer wall of the pressure roller 16 extends into the connecting chamber 6 through the strip opening 14 and abuts against the outer wall of the connecting member 7. The inner wall of the connecting chamber 6 is also rotatably connected to a rotating rod 12, and the outer wall of the connecting member 7 is tightly attached to the outer wall of the rotating rod 12.

[0072] When the connecting member 7 is pulled, the area of ​​the connecting member 7 located in the connecting cavity 6 will move, and the connecting member 7 is likely to rub against the corners in the connecting cavity 6, which may cause the connecting member 7 to be stuck or difficult to pull. The pressure roller 16 and the rotating rod 12 are located at the corners of the connecting cavity 6, so that when the connecting member 7 moves, the inner wall of the connecting member 7 can slide over the outer walls of the pressure roller 16 and the rotating rod 12, and the rotating rod 12 and the pressure roller 16 can rotate after being rubbed by the connecting member 7, thereby reducing the resistance to the movement of the connecting member 7. When the rotating rod 12 rotates, the two ends will rotate along the inner wall of the connecting cavity 6, and the pressure roller 16 will rotate along the inner wall of the connecting cavity 6 through the two ends of the fixed rod 15. Because the pressure roller 16 and the fixed rod 15 are rotationally connected, the rotation of the pressure roller 16 will also drive the fixed rod 15 to rotate, and the placement groove 13 provides space for the pressure roller 16 to rotate.

[0073] See also Figure 7-Figure 8 The connecting cavity 6 is provided with an inlet 17 and a through port 10. The inlet 17 is located above the closed end of the rotating portion 4. The end of the connecting member 7 away from the rotating portion 4 passes through the inlet 17 and enters the connecting cavity 6. The outer wall of the inlet 17 is in close contact with the outer wall of the connecting member 7.

[0074] The through opening 10 is located in the detection hole 3 , and the connecting piece 7 in the communication cavity 6 extends through the through opening 10 to the detection hole 3 and is connected to the outer wall of the elastic triggering portion 8 .

[0075] The oil chamber 101 and the sealing cover 2 are both provided with a connecting chamber 6. When the sealing cover 2 is installed in the X-ray machine body 1, the openings of the two connecting chambers 6 are just butted together, so that the connecting piece 7 in the connecting chamber 6 inside the oil chamber 101 can be inserted into the connecting chamber 6 in the sealing cover 2. The entry port 17 is the entry area of ​​the connecting chamber 6, so that the connecting piece 7 can be inserted into the connecting chamber 6 from the entry port 17, and then extend from the through port 10 to the detection hole 3, and be connected to the elastic trigger part 8.

Claims

1. A portable low-dose X-ray device for radiological imaging diagnosis, comprising an X-ray machine body (1), having an oil chamber (101) inside for storing insulating oil; a detection hole (3) is provided on one end surface of the X-ray machine body (1), and a pressure plunger (9) is slidably provided inside for pushing the pressure plunger (9) under the action of oil pressure to activate a detection switch; characterized in that: Also includes, The rotating part (4) is hinged to the top of the oil chamber (101), the hinge point is deviated from the center point of the rotating part (4) to the side away from the detection hole (3), and the interior of the rotating part (4) is connected to both ends; The elastic trigger part (8) is arranged in the detection hole (3) and can move axially relative to the detection hole (3). The rotating part (4) and the elastic trigger part (8) are connected via a connecting piece (7). When the X-ray machine body (1) is tilted and the insulating oil loses the pressure on the pressure plunger (9), the insulating oil exceeds the hinge point of the rotating part (4) so ​​that the rotating part (4) rotates. The elastic trigger part (8) and the pressure plunger (9) are driven by the connecting piece (7) to always keep the pressure. When there is no oil in the oil chamber (101), one end of the elastic trigger part (8) contacts the pressure plunger (9).

2. A portable low-dose X-ray device for radiological imaging diagnosis according to claim 1, characterized in that: The rotating part (4) is arranged transversely in the oil chamber (101), the center point of the rotating part (4) is biased towards the direction of the center point of the oil chamber (101) away from the detection hole (3), a fixing frame (5) is arranged above the oil chamber (101), the fixing frame (5) is located at the hinge point of the rotating part (4), the fixing frame (5) is located on the side of the center point of the rotating part (4) away from the detection hole (3), the top of the fixing frame (5) is connected to the inner wall of the oil chamber (101), and the bottom of the fixing frame (5) is hinged to the top of the rotating part (4).

3. A portable low-dose X-ray device for radiological imaging diagnosis as claimed in claim 2, characterized in that: The elastic trigger part (8) is designed to be arc-shaped, one end of the elastic trigger part (8) is connected to the inner wall of the detection hole (3), and the other end is in contact with the outer wall of the pressure plunger (9), and the lowest point of the outer arc convex surface of the elastic trigger part (8) is vertically downward.

4. A portable low-dose X-ray device for radiological imaging diagnosis as claimed in claim 3, characterized in that: The X-ray machine body (1) is further provided with a connecting cavity (6), one end of which vertically corresponds to an end of the rotating part (4) close to the detection hole (3), and the other end of which extends into the detection hole (3) and corresponds to the arc-shaped convex surface of the elastic trigger part (8); One end of the connecting member (7) is connected to one end of the rotating portion (4) close to the detection hole (3), and the other end of the connecting member (7) passes through the connecting cavity (6) to extend into the detection hole (3) and is connected to the center point of the arc surface of the elastic trigger portion (8).

5. A portable low-dose X-ray device for radiological imaging diagnosis according to claim 1, characterized in that: Both sides of the fixing frame (5) are provided with inclined surfaces (501), the two inclined surfaces (501) respectively correspond to the two open ends of the rotating part (4), the lower ends of the two inclined surfaces (501) are close to the center point of the bottom of the fixing frame (5), and the bottom end of the fixing frame (5) is against the top of the rotating part (4); Two connecting rods (11) are installed on the top of the rotating part (4), and one end of the connecting rod (11) away from the rotating part (4) is rotatably connected to the outer wall of the fixing frame (5), and the connecting rod (11) is located between the two inclined surfaces (501).

6. A portable low-dose X-ray device for radiological imaging diagnosis according to claim 2, characterized in that: A floating ball (20) is also provided in the rotating part (4), and slideways (18) are provided on the inner walls of both sides of the rotating part (4). A counterweight ball (19) is slidably connected in the slideway (18), and the outer wall of the counterweight ball (19) is in contact with the inner wall of the slideway (18). The area where the two counterweight balls (19) are located outside the slideway (18) is connected to the outside of the floating ball (20).

7. A portable low-dose X-ray device for radiological imaging diagnosis as claimed in claim 3, characterized in that: An elastic plate (21) is also provided in the rotating part (4), the elastic plate (21) is elastic, two ends of the elastic plate (21) and two ends of the rotating part (4) are located in the same vertical plane, one end of the elastic plate (21) is connected to the inner bottom wall of one of the openings of the rotating part (4), and the other end of the elastic plate (21) is tilted upward and abuts against the inner top wall of the opening at the other end of the rotating part (4); An upwardly tilted end of the elastic plate (21) is provided with a tilted end (22), the tilted end (22) having an arc and extending in a direction in which one end of the elastic plate (21) is connected to the rotating part (4).

8. A portable low-dose X-ray device for radiological imaging diagnosis as claimed in claim 4, characterized in that: The connecting cavity (6) is also provided with a placement groove (13), the inner wall of the placement groove (13) is rotatably connected to a fixing rod (15), the outer wall of the fixing rod (15) is installed with a pressure roller (16), the placement groove (13) is also provided with a strip-shaped opening (14) connected to the connecting cavity (6), the outer wall of the pressure roller (16) extends into the connecting cavity (6) through the strip-shaped opening (14) and abuts against the outer wall of the connecting member (7), the inner wall of the connecting cavity (6) is also rotatably connected to a rotating rod (12), and the outer wall of the connecting member (7) is in close contact with the outer wall of the rotating rod (12).

9. A portable low-dose X-ray device for radiological imaging diagnosis as claimed in claim 5, characterized in that: The connecting cavity (6) is provided with an inlet (17) and a through port (10), wherein the inlet (17) is located above the closed end of the rotating portion (4), and an end of the connecting member (7) away from the rotating portion (4) passes through the inlet (17) and enters the connecting cavity (6), and an outer wall of the inlet (17) is in close contact with an outer wall of the connecting member (7); The through opening (10) is located in the detection hole (3); the connecting piece (7) in the communicating cavity (6) passes through the through opening (10) and extends into the detection hole (3), and is connected to the outer wall of the elastic triggering portion (8).

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