Rolling curtain device, scanning bed and medical imaging device

Abstract

The present application relates to a rolling curtain device, a scanning bed, and a medical imaging device. The rolling curtain device includes: a rolling curtain storage box, a rolling curtain, and a guiding assembly. In the above solution provided by the present application, by adjusting the position of the guiding assembly, the guiding assembly is alternately in a first position and a second position, so that the rolling curtain can alternately enter the first storage guiding groove and the second storage guiding groove from the rolling curtain guiding groove to complete folding and winding. Since one end of a single rolling curtain is located in the first storage guiding groove and the other end is located in the second storage guiding groove after winding, under the limitation of the structure of the rolling curtain device, the width of the single rolling curtain itself needs to be greater than or equal to the distance between the first storage guiding groove and the second storage guiding groove. Compared with the traditional cylindrical rolling curtain sheet, the width dimension of the single rolling curtain in the present application is significantly increased, and the number of rolling curtains is greatly reduced under the same length of winding and unwinding, thereby greatly reducing the failure rate of the rolling curtain and the overall manufacturing cost of the rolling curtain.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a rolling curtain device, a scanning bed, and a medical imaging device. Background Art

[0002] In modern nuclear medicine, a PET device (Positron Emission Computed Tomography) is a relatively advanced clinical examination imaging device. When a PET medical imaging device is in use, a hospital bed is required as a carrier to send a patient into a scanning area. Therefore, the hospital bed needs a large horizontal movement space with a large stroke.

[0003] Currently, as shown in the existing medical imaging system Figure 13 , a hospital bed 15 is connected to a moving column 14, and the moving column 14 cooperates with a winding structure 13 on a base 11. When the moving column 14 drives the hospital bed 15 to move, the winding structure 13 is gradually wound into a rolling curtain box 12 on the base 11. Among them, the winding structure 13 is as shown in Figure 14 and Figure 15 . It mainly includes rolling curtain sheets 131, connecting rubber strips 132, and rolling curtain rollers 133 located on both sides of the rolling curtain sheets 131. Among them, the connecting rubber strips 132 are used to ensure the connection between the rolling curtain sheets 131 and provide a bending force between adjacent two rolling curtain sheets 131. Rolling curtain rollers 133 are installed on both sides of each rolling curtain sheet 131 to achieve smooth movement in a rolling curtain groove. A spiral rolling curtain groove 121 is provided in the rolling curtain box 12 to provide space for the overall winding of a long rolling curtain. When the hospital bed 15 is working, the entire rolling curtain is driven by the movement of the moving column 14 and moves in the rolling curtain groove 121 through the rolling curtain rollers 133 on both sides. When the top rolling curtain sheet 131 rolls into the rolling curtain groove 121, since the rolling curtain sheets 131 are connected by the connecting rubber strips 132, a certain angle of mutual bending is allowed between adjacent two rolling curtain sheets 131. When the rolling curtain sheet 131 moves to the rolling curtain groove 121, it can move along the direction of the arc-shaped groove, thereby realizing winding. When the moving column 14 moves in the reverse direction, the rolling curtain sheets 131 are synchronously drawn out in the reverse direction, thereby realizing the effect of winding and unwinding.

[0004] Due to a certain bending radius existing in the existing winding structure, such a winding and unwinding structure has great limitations on the width of the rolling curtain sheets, resulting in relatively narrow single rolling curtain sheets. For a PET medical imaging device, due to its large movement stroke distance, the number of corresponding rolling curtain sheets, connecting rubber strips, and rolling curtain rollers is extremely large, which will lead to relatively high manufacturing and assembly costs of the overall rolling curtain, a large occupied space volume of the winding rolling curtain box, and due to problems such as wear, impact, slip, easy loosening, and aging failure of the connecting rubber strips, the probability of overall failure and damage of the rolling curtain will increase, and maintenance is difficult. Summary of the invention

[0005] Based on this, it is necessary to provide a rolling shutter device, a scanning bed and a medical imaging device to address the problem that in the existing spiral winding structure, the width of the rolling shutter piece is greatly restricted by the winding and unwinding structure, resulting in a single rolling shutter piece being narrow and a large number of rolling shutter pieces being required when in use, which is prone to malfunctions during winding and unwinding.

[0006] The present application provides a rolling curtain device, comprising:

[0007] A rolling curtain storage box, wherein a guide groove is arranged on the inner side wall of the rolling curtain storage box, wherein the guide groove comprises a rolling curtain guide groove, a first storage guide groove and a second storage guide groove, and one end of the rolling curtain guide groove is connected to the first storage guide groove and the second storage guide groove; and the other end of the rolling curtain guide groove is connected to the rolling curtain rolling groove on the scanning bed;

[0008] A rolling curtain, which is movably connected to the guide groove and can be stored in the rolling curtain storage box;

[0009] A guide assembly, wherein the guide assembly is movably arranged on the side wall of the rolling shutter storage box and has a first position and a second position. When the guide assembly is in the first position, the guide assembly connects the rolling shutter guide groove with the first storage guide groove and is separated from the second storage guide groove. When the guide assembly is in the second position, the guide assembly connects the rolling shutter guide groove with the second storage guide groove and is separated from the first storage guide groove.

[0010] In one embodiment, the side wall includes two opposite side walls, the rolling shutter guide groove and the first receiving guide groove are both straight grooves, and the second receiving guide groove includes an arc-shaped groove segment with a preset radius and a straight groove segment.

[0011] In one embodiment, one end of the rolling blind guide groove is connected to one end of the first receiving guide groove and are parallel to each other;

[0012] One end of the arcuate groove segment is connected to one end of the rolling shutter guide groove toward the first receiving guide groove, and the other end of the arcuate groove segment is connected to the straight groove segment. The straight groove segment is parallel to the first receiving guide groove and has a preset spacing, and the preset spacing is equal to the preset radius.

[0013] In one embodiment, the guide assembly includes a shift block, which is rotatably connected to the side wall and is arranged at a connecting position between one end of the rolling blind guide groove and the first receiving guide groove and the second receiving guide groove.

[0014] In one embodiment, the shift block has a first protrusion, a second protrusion and a third protrusion;

[0015] When the guide assembly is in the first position, the first protrusion blocks the second receiving guide groove, and the second protrusion is located in the first receiving guide groove;

[0016] When the guide assembly is in the second position, the first protrusion blocks the first receiving guide groove, and the third protrusion is located in the second receiving guide groove.

[0017] In one embodiment, the guide assembly further includes a position switching auxiliary assembly, wherein the position switching auxiliary assembly is disposed on the side wall and connected to the shift block, and the position switching auxiliary assembly is used to enable the shift block to accurately switch to the first position or the second position.

[0018] In one embodiment, the position switching auxiliary component includes a connecting rod, a pendulum and a limit member, the pendulum is rotatably connected to the side wall, the limit member is fixed to the side wall, and one limit member is provided on both sides of the pendulum, and the shift block is connected to the pendulum through the connecting rod.

[0019] In one embodiment, the position switching auxiliary component includes an elastic member, one end of the elastic member is connected to the shift block, and the other end of the elastic member is connected to the side wall.

[0020] In one of the embodiments, the rolling blind includes at least one rolling blind piece and at least two rolling blind shafts, each of the rolling blind pieces is connected to the rolling blind shaft at both ends along the rolling blind unfolding direction, and adjacent rolling blind pieces are rotatably connected through the rolling blind shaft, and both ends of the rolling blind shaft are slidably arranged in the guide groove.

[0021] In one of the embodiments, the rolling blind further comprises rollers, and the rollers are disposed at both ends of each rolling blind shaft, and the rolling blind shaft is rolled in the guide groove by the rollers.

[0022] In one of the embodiments, the width of the rolling shutter piece along the rolling shutter unfolding direction is not less than the preset radius.

[0023] The present application also provides a scanning bed, including a scanning bed and a scanning bed base, wherein the scanning bed is movably arranged on the scanning bed base, and a rolling curtain device as described in any one of the embodiments described in the present application is arranged on the scanning bed base, wherein one end of the rolling curtain is connected to the scanning bed.

[0024] The present application also provides a medical imaging device, including a scanning body for scanning and imaging, and a scanning bed as described in an embodiment of the present application.

[0025] The beneficial effects of the present invention include:

[0026] The rolling curtain device provided in this application adjusts the position of the guiding component so that the guiding component alternately stays in the first position and the second position. In this way, the rolling curtain can alternately enter the first storage guiding groove and the second storage guiding groove from the rolling curtain guiding groove to complete the folding and winding. Since one end of a single rolling curtain is located in the first storage guiding groove and the other end is located in the second storage guiding groove after winding, under the limitation of the structure of the rolling curtain storage box, the width of a single rolling curtain itself needs to be greater than or equal to the distance between the first storage guiding groove and the second storage guiding groove. Compared with the traditional cylindrical rolling curtain sheets, the width dimension of the single rolling curtain in this application is significantly increased, and the number of rolling curtains is greatly reduced under the same length of winding and unwinding. Furthermore, the probability of failure and damage of the rolling curtain, as well as the overall manufacturing, assembly, and maintenance costs of the rolling curtain, are greatly reduced. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a rolling curtain device provided in an embodiment of this application;

[0028] Figure 2 is a schematic diagram of a rolling curtain provided in an embodiment of this application;

[0029] Figure 3 is Figure 2 a schematic diagram after folding;

[0030] Figure 4 is Figure 1 a schematic internal structure diagram of the rolling curtain storage box in ;

[0031] Figure 5 is Figure 4 a schematic diagram of the guiding groove in ;

[0032] Figure 6 is a schematic diagram of the states of a dial block before and after rotation provided in an embodiment of this application;

[0033] Figure 7 is a schematic diagram of the state when a rolling curtain enters the rolling curtain storage box provided in an embodiment of this application;

[0034] Figure 8 is Figure 7 a schematic diagram of the state after the rolling curtain in enters the rolling curtain storage box;

[0035] Figure 9 is Figure 8 a schematic diagram of the state after the rolling curtain in continues to enter the rolling curtain storage box;

[0036] Figure 10 is a schematic diagram of the state after a rolling curtain repeatedly enters the rolling curtain storage box provided in an embodiment of this application;

[0037] Figure 11 Schematic diagram of the state of the rolling curtain storage box after winding for an embodiment of the present application;

[0038] Figure 12 Schematic diagram for comparing the sizes of the folding rolling curtain storage box and the traditional spiral rolling curtain box under the same winding and unwinding lengths for an embodiment of the present application;

[0039] Figure 13 Schematic diagram of an existing medical imaging device;

[0040] Figure 14 For Figure 13 Schematic diagram after the rolling curtain box in is wound;

[0041] Figure 15 For Figure 13 Schematic diagram of the rolling curtain box in .

[0042] The markings in the figure are as follows:

[0043] 10. Rolling curtain storage box; 101. First storage guide groove; 102. Second storage guide groove; 103. Rolling curtain guide groove; 20. Rolling curtain; 201. Rolling curtain sheet; 202. Rolling curtain shaft; 203. Roller; 30. Guide assembly; 301. Pusher block; 3011. First protrusion; 3012. Second protrusion; 3013. Third protrusion; 302. Link; 303. Pendulum; 304. First limit block; 305. Second limit block; 11. Base; 1101. Rolling curtain rolling groove. Detailed implementation manners

[0044] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0049] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0050] Such as Figure 1 And in combination with Figure 5As shown in the figure, in an embodiment of the present application, a rolling curtain device is provided, including: a rolling curtain storage box 10, a rolling curtain 20, and a guiding component 30. Among them, a guiding groove is provided on the inner side wall of the rolling curtain storage box 10. The guiding groove includes a rolling curtain guiding groove 103, a first storage guiding groove 101, and a second storage guiding groove 102. One end of the rolling curtain guiding groove 103 is connected to the first storage guiding groove 101 and the second storage guiding groove 102; the other end of the rolling curtain guiding groove 103 communicates with a rolling curtain rolling groove 1101 on the scanning bed. The rolling curtain 20 is movably connected to the guiding groove, and the rolling curtain 20 can be stored in the rolling curtain storage box 10. The guiding component 30 is movably arranged on the side wall of the rolling curtain storage box 10, and the guiding component 30 has a first position and a second position. When the guiding component 30 is in the first position, the guiding component 30 makes the rolling curtain guiding groove 103 communicate with the first storage guiding groove 101 and cut off from the second storage guiding groove 102. When the guiding component 30 is in the second position, the guiding component 30 makes the rolling curtain guiding groove 103 communicate with the second storage guiding groove 102 and cut off from the first storage guiding groove 101.

[0051] During operation, when the guiding component 30 is in the first position, the guiding component 30 makes the rolling curtain guiding groove 103 communicate with the first storage guiding groove 101 and cut off from the second storage guiding groove 102. At this time, one end of the rolling curtain 20 can move from the rolling curtain guiding groove 103 to the corresponding first storage guiding groove 101. When the rolling curtain 20 moves to a preset position, the guiding component 30 moves from the first position to the second position. At this time, the guiding component 30 makes the rolling curtain guiding groove 103 communicate with the second storage guiding groove 102 and cut off from the first storage guiding groove 101. At the same time, the rolling curtain 20 can move from the rolling curtain guiding groove 103 to the second storage guiding groove 102.

[0052] When the guiding component 30 alternately is in the first position and the second position, the rolling curtain 20 can alternately enter the first storage guiding groove 101 and the second storage guiding groove 102 from the rolling curtain guiding groove 103 to complete the folding and winding. Since one end of a single rolling curtain is located in the first storage guiding groove 101 and the other end is located in the second storage guiding groove 102 after winding, under the limitation of the structure of the rolling curtain storage box 10, the width of the single rolling curtain itself needs to be greater than or equal to the distance between the first storage guiding groove 101 and the second storage guiding groove 102. Compared with the traditional cylindrical rolling curtain sheet, the width dimension of the single rolling curtain in the present application is significantly increased, and the number of rolling curtains is greatly reduced under the same length of winding and unwinding, thereby greatly reducing the probability of failure and damage of the rolling curtain and the overall manufacturing, assembly, and maintenance costs of the rolling curtain.

[0053] In some embodiments, such as Figure 1As shown, the side walls in the present application include two opposite side walls. Guide grooves and guiding components 30 are provided on both of the two opposite side walls inside the rolling curtain storage box 10. At the same time, both the rolling curtain guide groove 103 and the first storage guide groove 101 are straight grooves, and the second storage guide groove 102 includes an arc groove section with a preset radius and a straight groove section.

[0054] Since guide grooves and guiding components 30 are provided on both of the two opposite side walls inside the rolling curtain storage box 10, when the rolling curtain 20 enters the inside of the rolling curtain storage box 10, both ends of the rolling curtain 20 along the direction perpendicular to its moving direction are correspondingly located in the two guide grooves, so that the rolling curtain 20 can be stably located in the guide grooves.

[0055] In some embodiments, as Figure 5 shown, one end of the rolling curtain guide groove 103 is connected to one end of the first storage guide groove 101 and they are parallel to each other; one end of the arc groove section is connected to the end of the rolling curtain guide groove 103 facing the first storage guide groove 101, the other end of the arc groove section is connected to the straight groove section, the straight groove section is parallel to the first storage guide groove 101 and has a preset distance, and the preset distance is equal to the preset radius.

[0056] Since the rolling curtain guide groove 103 and the first storage guide groove 101 are in a parallel straight transition, the rolling curtain 20 can move smoothly from the rolling curtain guide groove 103 to the first storage guide groove 101. Since the straight groove section is parallel to the first storage guide groove 101 and the distance between the straight groove section and the first storage guide groove 101 is equal to the preset radius of the arc groove section, a smooth transition is formed at the connection between the straight groove section and the arc groove section, so that the rolling curtain 20 can move smoothly in the second storage guide groove 102.

[0057] During operation, when the guiding component 30 is in the first position, the guiding component 30 connects the rolling curtain guide groove 103 with the first storage guide groove 101 and blocks one end of the arc groove section far from the straight groove section. At this time, one end of the rolling curtain 20 can move from the rolling curtain guide groove 103 to the corresponding first storage guide groove 101. When the rolling curtain 20 moves to a preset position, the guiding component 30 moves from the first position to the second position. At this time, the guiding component 30 connects the rolling curtain guide groove 103 with the arc groove section and blocks the first storage guide groove 101. At the same time, the rolling curtain 20 can move from the rolling curtain guide groove 103 to the arc groove section and then enter the straight groove section.

[0058] In some embodiments, as Figure 1 and combined with Figure 4 shown, the guiding component 30 includes a dial block 301 which is rotatably connected to the side wall and is arranged at the connection position of one end of the rolling curtain guide groove 103 with the first storage guide groove 101 and the second storage guide groove 102.

[0059] When working, when the shifting block 301 is in the first position, the shifting block 301 can connect the rolling curtain guiding groove 103 with the first storage guiding groove 101 and cut off the second storage guiding groove 102. When the shifting block 301 is in the second position, the shifting block 301 can connect the rolling curtain guiding groove 103 with the second storage guiding groove 102 and cut off the first storage guiding groove 101.

[0060] Furthermore, as Figure 6 shown, the shifting block 301 has a first protrusion 3011, a second protrusion 3012 and a third protrusion 3013. When the guiding component 30 is in the first position, the first protrusion 3011 cuts off the second storage guiding groove 102, and the second protrusion 3012 is located in the first storage guiding groove 101. When the guiding component 30 is in the second position, the first protrusion 3011 cuts off the first storage guiding groove 101, and the third protrusion 3013 is located in the second storage guiding groove 102.

[0061] As Figure 6 shown, when the guiding component 30 is in the first position, the connecting part formed by the first protrusion 3011 and the third protrusion 3013 cuts off the second storage guiding groove 102, and the second protrusion 3012 is located in the first storage guiding groove 101. The rolling curtain 20 can move from the rolling curtain rolling groove 1101 on the base 11 to the rolling curtain guiding groove 103 under the drive of the scanning bed, and then enter the first storage guiding groove 101 and push the second protrusion 3012 to rotate so that the guiding component 30 moves from the first position to the second position.

[0062] When the guiding component 30 is in the second position, the connecting part formed by the first protrusion 3011 and the second protrusion 3012 cuts off the horizontal groove 101, and the third protrusion 3013 is located in the second storage guiding groove 102. The rolling curtain 20 can move from the rolling curtain rolling groove 1101 on the base 11 to the rolling curtain guiding groove 103 under the drive of the scanning bed, and then enter the arc section in the second storage guiding groove 102 and push the third protrusion 3013 to rotate, so that the guiding component 30 moves from the second position to the first position, and further makes the guiding component 30 alternately in the first position and the second position.

[0063] In some embodiments, in order to facilitate connecting the shifting block 301 to the side wall, the guiding component further includes a position switching auxiliary component. The position switching auxiliary component is arranged on the side wall and connected to the shifting block 301. The position switching auxiliary component is used to accurately switch the shifting block 301 to the first position or the second position.

[0064] Furthermore, as Figure 4As shown, the position switching auxiliary component includes a connecting rod 302, a pendulum 303, and a limiting member. The pendulum 303 is rotatably connected to the side wall. Among them, the limiting member is fixed on the side wall, and a limiting member is provided on both sides of the pendulum 303. The dial 301 is connected to the pendulum 303 through the connecting rod 302.

[0065] Exemplarily, the above-mentioned limiting block includes a first limiting block 304 and a second limiting block 305. The first limiting block 304 and the second limiting block 305 are both fixed on the side wall inside the rolling curtain storage box 10, and the pendulum 303 is located between the first limiting block 304 and the second limiting block 305; as Figure 6 shown in Figure (a) of [reference], when the guiding component 30 is in the first position, the pendulum 303 abuts against the first limiting block 304, as Figure 6 shown in Figure (b) of [reference], when the guiding component 30 is in the second position, the pendulum 303 abuts against the second limiting block 305.

[0066] Furthermore, the position switching auxiliary component includes an elastic member. One end of the elastic member is connected to the dial 301, and the other end is connected to the side wall. It should be noted that the specific structure of the position switching auxiliary component in this application is not limited, and it can be specifically designed according to the needs of actual products.

[0067] In some embodiments, as Figure 2 and combined with Figure 1 shown, the rolling curtain 20 includes at least one rolling curtain sheet 201 and at least two rolling curtain shafts 202. Among them, both ends of each rolling curtain sheet 201 along the rolling curtain unfolding direction are connected to the rolling curtain shafts 202, and the adjacent rolling curtain sheets 201 are rotatably connected through the rolling curtain shafts 202. Both ends of the rolling curtain shafts 202 are slidably arranged in the guide grooves.

[0068] When a single rolling curtain sheet 201 in this application is being wound up, one end will enter the first storage guide groove 101 through the rolling curtain guide groove 103, and one end will enter the second storage guide groove 102 through the rolling curtain guide groove 103. Thus, under the limitation of the structures of the first storage guide groove 101 and the second storage guide groove 102, the single rolling curtain sheet 201 itself will have a certain width. Compared with the traditional cylindrical rolling curtain sheet, the width dimension of the single rolling curtain sheet 201 in this application is significantly increased, and the number of rolling curtains is greatly reduced under the same winding and unwinding length, thereby greatly reducing the probability of failure and damage of the rolling curtain and the overall manufacturing, assembly, and maintenance costs of the rolling curtain.

[0069] Furthermore, in order to facilitate the movement of the rolling curtain 20 in the guide groove, as Figure 2 shown, the rolling curtain 20 further includes rollers 203. Rollers 203 are provided at both ends of each rolling curtain shaft 202, and the rolling curtain shafts 202 are arranged in the guide grooves in a rolling manner through the rollers 203.

[0070] Exemplarily, as Figure 2 shown, in the present application, a plurality of rolling curtain sheets 201 are sequentially connected along their moving direction, and rolling curtain shafts 202 are arranged on both sides of each rolling curtain sheet 201 along the moving direction. Rollers 203 are arranged at both ends of the rolling curtain shaft 202 along its length direction, and the rollers 203 are located in the rolling curtain rolling groove 1101;

[0071] In the initial stage, as Figure 7 and in combination with Figure 1 shown, the rollers 203 on the rolling curtain 20 are located in the rolling curtain rolling groove 1101, and at this time, the guiding component 30 is in the first position. When the scanning bed drives the rolling curtain 20 to wind up, the scanning bed can drive the first roller 203 to enter the rolling curtain guiding groove 103 from the rolling curtain rolling groove 1101; then as Figure 8 shown in Figure (a) of , when the roller 203 passes by the dial block 301, the roller 203 pushes the second protrusion 3012 to rotate. Under the action of the thrust force, the roller 203 drives the dial block 301 to rotate clockwise, and the dial block 301 drives the pendulum 303 to swing clockwise through the connecting rod 302. When the pendulum 303 swings past the vertical balance point, as Figure 8 shown in Figure (b) of , under the action of gravity, the pendulum 303 continues to rotate clockwise until it abuts against the second limiting block 305. At this time, as Figure 8 shown in Figure (c) of , the roller 203 can continue to roll to the right and enter the first storage guiding groove 101; at the same time, the dial block 301 changes from the first position to the second position, and the connecting part formed by the first protrusion 3011 and the second protrusion 3012 cuts off the horizontal groove 101, and the third protrusion 3013 is located in the second storage guiding groove 102.

[0072] The movement of the above-mentioned roller 203 is a completely reversible process. When the scanning bed drives the rolling curtain 20 to unwind, as Figure 8 shown in Figures (d), (e), and (f) of , the roller 203 can also push the dial block 301 to rotate in the opposite direction, and at this time, the rolling curtain 20 is pulled out. Since the movement process of the roller 203 being pulled out from the rolling curtain storage box 10 is exactly opposite to the movement process of the roller 203 entering the rolling curtain storage box 10, the movement process of the roller 203 being pulled out from the rolling curtain storage box 10 will not be described in detail here.

[0073] As Figure 9 shown in Figure (a) of , when the dial block 301 changes from the first position to the second position, the second roller 203 entering the rolling curtain guiding groove 103 continues to move to the right. At this time, the dial block 301 is in the second position. When the roller 203 enters the arc section of the second storage guiding groove 102 from the rolling curtain guiding groove 103, as Figure 9 shown in Figure (b) of , when the roller 203 passes by the third protrusion 3013, under the action of the thrust force, as Figure 9As shown in Figure (c) of FIG. 2 , the roller 203 drives the shift block 301 to rotate counterclockwise, and the shift block 301 drives the pendulum 303 to swing counterclockwise through the connecting rod 302. After the pendulum 303 passes the vertical balance point, it continues to rotate counterclockwise under the action of gravity until it contacts the first limit block 304. At this time, Figure 9 As shown in FIG. (d), the second roller 203 continues to roll along the arc-shaped groove segment to the end of the arc-shaped groove segment, and the shape of the rolling curtain 20 is as follows Figure 3 As shown in Figure (a), at the same time, the shift block 301 is changed from the second position to the first position, the connecting portion formed by the first protrusion 3011 and the third protrusion 3013 separates the second receiving guide groove 102, and the second protrusion 3012 is located in the first receiving guide groove 101.

[0074] The movement of the second roller 203 is a completely reversible process. When the scanning bed drives the rolling curtain 20 to unwind, Figure 9 As shown in Figures (e), (f), (g) and (h), the roller 203 can also push the dial block 301 to rotate in the opposite direction, and the roller blind 20 is pulled out.

[0075] like Figure 10 As shown in FIG. 1 (a), when the third roller 203 enters the rolling guide groove 103, since the shift block 301 is in the first position at this time, the movement process of the third roller 203 is the same as the movement process of the first roller 203, which will not be repeated here. Figure 10 As shown in Figures (b) and (c) of FIG. 1 , when the third roller 203 enters the first receiving guide groove 101, the shifting block 301 moves from the first position to the second position, and then the fourth roller 203 enters the arc-shaped groove section of the second receiving guide groove 102. The movement process of the fourth roller 203 is the same as that of the second roller 203, which will not be described here. The above process is repeated continuously, as shown in FIG. Figure 10 As shown in FIG. (d), the rolling shutter piece 201 can be folded and rolled up, and the shape of the folded rolling shutter is as follows: Figure 3 As shown in Figure (b) in Figure 11 As shown in FIG. 1 , it is a schematic diagram of rolling up a plurality of rolling shutter pieces 201 in the rolling shutter 20 into the rolling shutter storage box 10. The above process is also reversible, such as Figure 10 As shown in Figures (e), (f), (g) and (h), the reverse process is the process of pulling the roller blind out of the roller blind storage box 10.

[0076] like Figure 12The left figure in it is the rolling curtain storage box 10 in the present application, and the right figure is the existing rolling curtain box 12. In the present application, since the rolling curtain 20 can be folded and wound into the rolling curtain storage box 10, the occupied space size of the folded rolling curtain sheet 201 is smaller. Thus, for the rolling curtain 20 of the same length, the rolling curtain storage box 10 in the present application has a smaller volume than the rolling curtain box with a traditional structure, and the overall structure is more compact, thereby saving the equipment installation space.

[0077] In some embodiments, the width of the rolling curtain sheet 201 along the rolling curtain unfolding direction is not less than the preset radius.

[0078] Exemplarily, the width of a single rolling curtain sheet 201 along its moving direction is not less than the preset radius of the arc section on the second storage guiding groove 102. Since the distance between the straight groove section on the second storage guiding groove 102 and the first storage guiding groove 101 is equal to the preset radius, the width of a single rolling curtain sheet 201 along its moving direction is also not less than the distance between the straight groove section on the second storage guiding groove 102 and the first storage guiding groove 101. In this way, during the winding process of a single rolling curtain sheet 201, one end can be located in the first storage guiding groove 101 and the other end can be located in the straight groove section, avoiding the situation that the width of a single rolling curtain sheet 201 is too small to be wound between the first storage guiding groove 101 and the straight groove section.

[0079] The present application also provides a scanning bed, including a scanning bed and a scanning bed base. The scanning bed is movably arranged on the scanning bed base, and a rolling curtain device as in any one of the embodiments of the present application is arranged on the scanning bed base, wherein one end of the rolling curtain is connected to the scanning bed.

[0080] The present application also provides a medical imaging device, including a scanning main body for scanning and imaging, and a scanning bed as in the embodiments of the present application.

[0081] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0082] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A rolling curtain device, characterized in that, it includes: A rolling curtain storage box (10), on the inner side wall of the rolling curtain storage box (10), a guiding groove is provided, the guiding groove includes a rolling curtain guiding groove (103), a first storage guiding groove (101) and a second storage guiding groove (102), and one end of the rolling curtain guiding groove (103) is connected to the first storage guiding groove (101) and the second storage guiding groove (102); the other end of the rolling curtain guiding groove (103) is communicated with a rolling curtain rolling groove (1101) on the scanning bed; A rolling curtain (20), the rolling curtain (20) is movably connected with the guiding groove and can be stored in the rolling curtain storage box (10); A guiding component (30), the guiding component (30) is movably arranged on the side wall of the rolling curtain storage box (10), and has a first position and a second position. When the guiding component (30) is in the first position, the guiding component (30) makes the rolling curtain guiding groove (103) communicate with the first storage guiding groove (101) and cut off from the second storage guiding groove (102). When the guiding component (30) is in the second position, the guiding component (30) makes the rolling curtain guiding groove (103) communicate with the second storage guiding groove (102) and cut off from the first storage guiding groove (101); wherein, the rolling curtain moves into the rolling curtain guiding groove (103) under the drive of the scanning bed, and the rolling curtain (20) can push the guiding component (30) to alternately switch between the first position and the second position.

2. The rolling curtain device according to claim 1, characterized in that, The side wall includes two opposite side walls. The rolling curtain guiding groove (103) and the first storage guiding groove (101) are both straight grooves, and the second storage guiding groove (102) includes an arc groove section with a preset radius and a straight groove section.

3. The rolling curtain device according to claim 2, characterized in that, One end of the rolling curtain guiding groove (103) is connected to one end of the first storage guiding groove (101) and they are parallel to each other; One end of the arc groove section is connected to the end of the rolling curtain guiding groove (103) facing the first storage guiding groove (101), the other end of the arc groove section is connected to the straight groove section, the straight groove section is parallel to the first storage guiding groove (101) and has a preset distance, and the preset distance is equal to the preset radius.

4. The rolling curtain device according to claim 1, characterized in that, The guiding component (30) includes a dial block (301), the dial block (301) is rotatably connected to the side wall and is arranged at the connection position of one end of the rolling curtain guiding groove (103) with the first storage guiding groove (101) and the second storage guiding groove (102).

5. The rolling curtain device according to claim 4, characterized in that, The dial block (301) has a first protrusion (3011), a second protrusion (3012) and a third protrusion (3013); When the guide assembly (30) is in the first position, the first protrusion (3011) blocks the second receiving guide groove (102), and the second protrusion (3012) is located in the first receiving guide groove (101); When the guide assembly (30) is in the second position, the first protrusion (3011) blocks the first receiving guide groove (101), and the third protrusion (3013) is located in the second receiving guide groove (102).

6. The rolling curtain device according to claim 4, It is characterized in that The guide assembly further comprises a position switching auxiliary assembly, which is arranged on the side wall and connected to the shift block (301), and is used to enable the shift block (301) to accurately switch to the first position or the second position.

7. The rolling blind device according to claim 6, It is characterized in that The position switching auxiliary component comprises a connecting rod (302), a pendulum (303) and a limiting member, wherein the pendulum (303) is rotatably connected to the side wall, the limiting member is fixed to the side wall, and one limiting member is provided on both sides of the pendulum (303), and the shifting block (301) is connected to the pendulum (303) via the connecting rod (302).

8. The rolling curtain device according to claim 6, It is characterized in that The position switching auxiliary component comprises an elastic member, one end of which is connected to the shifting block (301), and the other end of which is connected to the side wall.

9. The rolling curtain device according to claim 3, It is characterized in that The rolling curtain (20) comprises at least one rolling curtain piece (201) and at least two rolling curtain shafts (202); both ends of each rolling curtain piece (201) along the rolling curtain unfolding direction are connected to the rolling curtain shaft (202); adjacent rolling curtain pieces (201) are rotatably connected via the rolling curtain shafts (202); and both ends of the rolling curtain shafts (202) are slidably arranged in the guide grooves.

10. The rolling blind device according to claim 9, It is characterized in that The rolling blind (20) further comprises rollers (203), and the rollers (203) are arranged at both ends of each rolling blind shaft (202), and the rolling blind shaft (202) is rolled in the guide groove via the rollers (203).

11. The rolling blind device according to claim 9, It is characterized in that The width of the rolling shutter piece (201) along the rolling shutter unfolding direction is not less than the preset radius.

12. A scanning bed, It is characterized in that It comprises a scanning bed and a scanning bed base, wherein the scanning bed is movably arranged on the scanning bed base, and the rolling curtain device according to any one of claims 1 to 11 is arranged on the scanning bed base, wherein one end of the rolling curtain is connected to the scanning bed.

13. A medical imaging device, It is characterized in that The invention comprises a scanning body for scanning imaging, and a scanning bed as claimed in claim 12.

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