Protective screen for nuclear magnetic resonance

Abstract

The utility model discloses a kind of protection curtains for nuclear magnetic resonance, belong to protection curtain technical field.This kind of protection curtain for nuclear magnetic resonance, including lifting mechanism and protection mechanism, the lifting mechanism includes chassis, the both ends of chassis are fixedly installed with lifting frame, a pair of lifting frame top is fixedly installed with truss, a pair of the opposite sides of lifting frame are all set with sealing slide strip;The protection mechanism includes reel, the reel is embedded and installed in the upper end of chassis, and the both ends of reel are respectively inserted into the inside of a pair of lifting frame, the inside one end of reel is equipped with clockwork spring box, the inside other end of reel is rotatably connected with reel shaft, the other end of reel shaft is connected with the rotary end of clockwork spring box, reel is wound with protection curtain, one end of protection curtain two sides is respectively connected with a pair of sealing slide strip slidingly, the utility model can effectively improve the practicality of protection curtain, with higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of protective curtain technology, specifically a protective curtain for nuclear magnetic resonance imaging. Background Technology

[0002] Applications of Magnetic Resonance Imaging: Magnetic resonance imaging has become a common imaging examination method, and it is a novel imaging technology.

[0003] Based on the above, the inventors have discovered the following problems: The protective curtains of existing MRI equipment are mainly used to shield magnetic fields and radiation, ensuring the safety of outdoor personnel, and can also serve as a shield to protect patient privacy. When adjusting the protective curtains, operators need to enter the MRI room to manually pull the curtain or adjust the fixing buckles. MRI equipment has extremely high requirements for magnetic field stability. Frequent entry of operators into the MRI room may involve carrying metal objects or causing airflow disturbances, interfering with the uniformity of the magnetic field and leading to image artifacts.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a protective curtain for nuclear magnetic resonance imaging, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a protective curtain for nuclear magnetic resonance imaging (NMR) to solve the problem mentioned in the background art that when adjusting the protective curtain of existing NMR equipment, the operator needs to enter the NMR chamber and manually pull the curtain or adjust the fixing buckle.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A protective curtain for nuclear magnetic resonance imaging includes a lifting mechanism and a protective mechanism. The lifting mechanism includes a base frame, with lifting frames fixedly installed at both ends of the base frame. A truss is fixedly installed between the top ends of a pair of lifting frames, and sealing strips are provided on the facing surfaces of the pair of lifting frames. The protective mechanism includes a roller, which is embedded in the upper end of the base frame, with both ends of the roller passing through the interior of the pair of lifting frames. A spring box is provided at one end of the inside of the roller, and a roller shaft is rotatably connected to the other end of the inside of the roller. The other end of the roller shaft is connected to the rotating end of the spring box, and a protective curtain is wound around the roller shaft. One end of the protective curtain is slidably connected to the pair of sealing strips on both sides.

[0008] Furthermore, each of the lifting frames is rotatably connected to a screw, and each screw is threaded with a slider. A pair of sliders are respectively connected to the upper two sides of the protective curtain, and the threads of the pair of screws are arranged in opposite directions.

[0009] The beneficial effect of adopting the above-mentioned further solution is that when the screw rotates, the opposite thread design enables a pair of sliders to rise and fall synchronously, driving the protective curtain to open and close smoothly, avoiding deviation or jamming during the lifting process, ensuring that the protective curtain and the sealing strip fit tightly, and improving the protective sealing performance.

[0010] Furthermore, the top ends of the screws all extend through the truss into the interior and are fitted with first bevel gears. The advantage of this further solution is that the first bevel gears change the power transmission direction between the screws and the shaft, enabling a single power source to drive a pair of screws to rotate synchronously, simplifying the transmission structure and ensuring consistent lifting speeds on both sides.

[0011] Furthermore, a pair of retainers are fixedly installed inside the truss, and a rotating shaft is rotatably inserted between the pair of retainers.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the cage provides stable support for the shaft, ensures the coaxiality of the shaft during rotation, reduces shaking during transmission, and ensures the stability and accuracy of power transmission.

[0013] Furthermore, a second bevel gear is fitted at both ends of the rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the second bevel gear meshes with the first bevel gear, transmitting the rotational power of the rotating shaft to the screw, realizing the synchronous reverse rotation of a pair of screws, ensuring that the lifting and lowering of both sides of the protective curtain are synchronized, and improving the smoothness of opening and closing.

[0015] Furthermore, a third bevel gear is fitted at the center of the rotating shaft, and a fourth bevel gear is rotatably connected to the inner top of the truss on one side of the third bevel gear, with the fourth bevel gear meshing with the third bevel gear.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the third bevel gear meshes with the fourth bevel gear, changing the power output direction of the drive motor, so that the power is efficiently transmitted to the rotating shaft, realizing the automatic lifting and lowering of the protective curtain, and simplifying the operation process.

[0017] Furthermore, a drive motor is fixedly installed at the upper end of the truss, and the output end of the drive motor is connected to the fourth bevel gear for transmission.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the drive motor provides power for the raising and lowering of the protective curtain, replacing manual operation, realizing the raising and lowering control of the protective curtain, and improving the convenience of use and protection efficiency.

[0019] Furthermore, a base is fixedly installed at the bottom of the frame, and casters are installed at the four corners of the bottom of the base.

[0020] The beneficial effects of adopting the above-mentioned further solutions are that the base increases the support area of ​​the base frame, improving the overall structural stability; the casters facilitate the flexible movement of the protective curtain, and the protective area can be adjusted according to the position of the MRI equipment, enhancing the applicability of the device.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: In the lifting mechanism of the protective curtain for nuclear magnetic resonance, the base frame and lifting frame form a supporting frame, the truss enhances the structural stability, and the sealing strip ensures the sealing of the protective curtain during lifting and lowering; the protective mechanism's drum houses the protective curtain, and the spring box, in conjunction with the roller, realizes the automatic winding of the protective curtain. The protective curtain slides along the sealing strip to open and close, thus achieving convenient protection of the nuclear magnetic resonance area and reducing radiation leakage. When the screw rotates, the opposite thread design allows a pair of sliders to rise and fall synchronously, driving the protective curtain to open and close smoothly, avoiding deviation or jamming during lifting and lowering, ensuring that the protective curtain and the sealing strip fit tightly, and improving the protective sealing performance. The first bevel gear changes the power transmission direction of the screw and the rotating shaft, realizing that a single power source drives a pair of screws to rotate synchronously, simplifying the transmission structure and ensuring that the lifting speed on both sides is consistent. The base increases the support area of ​​the base frame, improving the overall structural stability; the casters facilitate the flexible movement of the protective curtain, and the protective area can be adjusted according to the position of the nuclear magnetic resonance equipment, enhancing the applicability of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the protective curtain for nuclear magnetic resonance imaging disclosed in an embodiment of the present invention. Figure 1 ;

[0023] Figure 2 This is a three-dimensional structural diagram of the protective curtain for nuclear magnetic resonance imaging disclosed in an embodiment of the present invention. Figure 2 ;

[0024] Figure 3 This is a three-dimensional structural diagram of the protective curtain for nuclear magnetic resonance imaging disclosed in an embodiment of the present invention. Figure 3 ;

[0025] Figure 4 This is a partial front cross-sectional view of the lifting frame and roller of the protective curtain for nuclear magnetic resonance disclosed in an embodiment of the present utility model;

[0026] Figure 5 This is a partial front cross-sectional view of the truss of the protective curtain for nuclear magnetic resonance disclosed in an embodiment of this utility model.

[0027] In the diagram: 1. Lifting mechanism; 101. Base frame; 102. Lifting frame; 103. Base; 104. Casters; 105. Truss; 106. Drive motor; 107. Sealing strip; 108. Screw; 109. Slider; 110. Cage; 111. Shaft; 112. Second bevel gear; 113. First bevel gear; 114. Third bevel gear; 115. Fourth bevel gear; 2. Protective mechanism; 201. Drum; 202. Protective curtain; 203. Spring box; 204. Reel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a protective curtain for nuclear magnetic resonance imaging (MRI), comprising a lifting mechanism 1 and a protective mechanism 2. The lifting mechanism 1 includes a base frame 101, with lifting frames 102 fixedly installed at both ends of the base frame 101. A truss 105 is fixedly installed between the top ends of a pair of lifting frames 102, and sealing strips 107 are provided on the facing surfaces of the pair of lifting frames 102. The protective mechanism 2 includes a drum 201, which is embedded in the upper end of the base frame 101, with both ends of the drum 201 penetrating into the interior of a pair of lifting frames 102. A spring box 203 is provided at one end of the inside of the drum 201, and a roller 204 is rotatably connected to the other end of the inside of the drum 201. The other end of the shaft 204 is connected to the rotating end of the spring box 203. A protective curtain 202 is wound around the shaft 204. One end of the protective curtain 202 is slidably connected to a pair of sealing strips 107 on both sides. In the lifting mechanism 1, the base frame 101 and the lifting frame 102 form a support frame. The truss 105 enhances the structural stability. The sealing strips 107 ensure the sealing of the protective curtain 202 when it is raised and lowered. The drum 201 of the protective mechanism 2 houses the protective curtain 202. The spring box 203 cooperates with the shaft 204 to realize the automatic winding of the protective curtain 202. The protective curtain 202 slides along the sealing strips 107 to realize opening and closing. The whole system realizes convenient protection of the nuclear magnetic resonance area and reduces radiation leakage.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 - Figure 5The lifting frame 102 is internally connected to screws 108, each screw 108 having a threaded slider 109. A pair of sliders 109 are respectively connected to the upper sides of the protective curtain 202. The threads of the pair of screws 108 are opposite. The top ends of both screws 108 extend through the truss 105 into the interior and are each fitted with a first bevel gear 113. A pair of retainers 110 are fixedly installed inside the truss 105. A rotating shaft 111 is rotatably inserted between the two retainers 110. Second bevel gears 112 are fitted at both ends of the rotating shaft 111, meshing with the first bevel gears 113. A [missing information - likely a device or structure] is fitted at the center of the rotating shaft 111. A third bevel gear 114 is present. A fourth bevel gear 115 is rotatably connected to the inner top of the truss 105, located on one side of the third bevel gear 114. The fourth bevel gear 115 meshes with the third bevel gear 114. A drive motor 106 is fixedly mounted on the upper end of the truss 105, and its output is connected to the fourth bevel gear 115. A base 103 is fixedly mounted on the bottom end of the base frame 101, and casters 104 are mounted at each of the four corners of the base 103. When the screw 108 rotates, the opposite thread design causes a pair of sliders 109 to rise and fall synchronously, smoothly opening and closing the protective curtain 202 and preventing deviation or jamming during lifting. To ensure a tight fit between the protective curtain 202 and the sealing strip 107, improving the protective sealing performance, the first bevel gear 113 changes the power transmission direction of the screw 108 and the rotating shaft 111, enabling a single power source to drive a pair of screws 108 to rotate synchronously. This simplifies the transmission structure and ensures consistent lifting speeds on both sides. The retainer 110 provides stable support for the rotating shaft 111, ensuring coaxiality during rotation, reducing swaying during transmission, and guaranteeing the stability and accuracy of power transmission. The second bevel gear 112 meshes with the first bevel gear 113, transmitting the rotational power of the rotating shaft 111 to the screws 108, achieving synchronous reverse rotation of the pair of screws 108, ensuring the protective curtain... The protective curtain 202 is raised and lowered synchronously on both sides, improving the smoothness of opening and closing. The third bevel gear 114 and the fourth bevel gear 115 mesh, changing the power output direction of the drive motor 106, so that the power is efficiently transmitted to the rotating shaft 111, realizing the automatic raising and lowering of the protective curtain 202, simplifying the operation process. The drive motor 106 provides power for the raising and lowering of the protective curtain 202, replacing manual operation, realizing the raising and lowering control of the protective curtain 202, improving the convenience of use and protection efficiency. The base 103 increases the support area of ​​the base frame 101, improving the overall structural stability. The casters 104 facilitate the flexible movement of the protective curtain, and the protection area can be adjusted according to the position of the nuclear magnetic resonance equipment, enhancing the applicability of the device.

[0032] Specifically, the working principle of this type of protective curtain for nuclear magnetic resonance is as follows: During use, the drive motor 106 drives the fourth bevel gear 115 to rotate, which in turn drives the shaft 111 to rotate under the support of the cage 110 via the third bevel gear 114. The second bevel gears 112 at both ends of the shaft 111 mesh with the first bevel gear 113 at the top of the screw 108, which drives a pair of screws 108 with opposite threads to rotate synchronously, causing the slider 109 to move the protective curtain 202 up and down along the sealing strip 107. When opened, the protective curtain 202 stretches the spring box 203. When closed, the spring box 203 automatically rolls up the protective curtain 202 via the roller 204. The base 103 and the casters 104 facilitate the movement of the device, and the whole system achieves convenient opening and closing and stable protection of the protected area.

[0033] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A protective curtain for nuclear magnetic resonance imaging, characterized in that, The system includes a lifting mechanism (1) and a protective mechanism (2). The lifting mechanism (1) includes a base frame (101), with lifting frames (102) fixedly installed at both ends of the base frame (101). A truss (105) is fixedly installed between the top ends of a pair of lifting frames (102), and sealing strips (107) are provided on the facing surfaces of a pair of lifting frames (102). The protective mechanism (2) includes a drum (201), which is embedded in the upper end of the base frame (101). The two ends of the drum (201) are respectively inserted into the interior of a pair of lifting frames (102). One end of the interior of the drum (201) is provided with a spring box (203), and the other end of the interior of the drum (201) is rotatably connected to a spool (204). The other end of the spool (204) is connected to the rotating end of the spring box (203). A protective curtain (202) is wound around the spool (204), and one end of the protective curtain (202) is slidably connected to a pair of sealing strips (107) on both sides.

2. The protective curtain for nuclear magnetic resonance imaging according to claim 1, characterized in that, The lifting frame (102) is rotatably connected to a screw (108), and a slider (109) is threaded onto each screw (108). A pair of sliders (109) are respectively connected to the upper two sides of the protective curtain (202), and the threads of the pair of screws (108) are opposite.

3. A protective curtain for nuclear magnetic resonance imaging according to claim 2, characterized in that, The top ends of the pair of screws (108) extend through the truss (105) into the interior and are fitted with a first bevel gear (113).

4. A protective curtain for nuclear magnetic resonance imaging according to claim 3, characterized in that, A pair of retainers (110) are fixedly installed inside the truss (105), and a pivot (111) is rotatably inserted between the pair of retainers (110).

5. A protective curtain for nuclear magnetic resonance imaging according to claim 4, characterized in that, Both ends of the rotating shaft (111) are fitted with second bevel gears (112), and the second bevel gears (112) mesh with the first bevel gears (113).

6. A protective curtain for nuclear magnetic resonance imaging according to claim 5, characterized in that, A third bevel gear (114) is fitted at the center of the shaft (111), and a fourth bevel gear (115) is rotatably connected to the top of the truss (105) on one side of the third bevel gear (114). The fourth bevel gear (115) meshes with the third bevel gear (114).

7. A protective curtain for nuclear magnetic resonance imaging according to claim 6, characterized in that, A drive motor (106) is fixedly installed at the upper end of the truss (105), and the output end of the drive motor (106) is connected to the fourth bevel gear (115) for transmission.

8. A protective curtain for nuclear magnetic resonance imaging according to claim 1, characterized in that, The base (103) is fixedly installed at the bottom end of the base frame (101), and casters (104) are installed at the four corners of the bottom end of the base (103).

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