Medical scanning imaging equipment, slip ring and spacing adjusting device of slip ring

Abstract

The utility model relates to medical scanning imaging equipment, a sliding ring and a distance adjusting device of the sliding ring. The distance adjusting device comprises a fixing piece, a mounting piece and a telescopic assembly. The fixing part is used for being connected with the fixed rack, and the mounting part is used for being connected with the rotating rack in an abutting mode; the fixing piece and the mounting piece are connected through the telescopic assembly, and the telescopic assembly is configured to adjust the distance between the fixing piece and the mounting piece; and the mounting piece is used for mounting a signal transmission unit. The fixed part is connected with the fixed rack; the fixing piece is connected with the mounting piece through a telescopic assembly, and the telescopic assembly can automatically adjust the distance between the fixing piece and the mounting piece, so that when the rotating rack rotates, the mounting piece abuts against the rotating rack all the time. In other words, the distance between the receiver and the corresponding transmitting antenna is further kept at the preset distance all the time, so that the installation requirement for the rotating rack is lowered, and deformation caused by the uneven installation face of the sliding ring or the rack is made up.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and particularly to medical scanning imaging devices, slip rings, and their spacing adjustment devices. Background Art

[0002] The communication of the rotating gantry in the slip ring is achieved through one or more sets of transmitting antennas and receivers, where one of the transmitting antenna and the receiver is disposed on the rotating gantry, and the other is disposed on the gantry or the stator. Since the rotating gantry needs to rotate, and the receiver should be able to receive the signal of the transmitting antenna through the receiving antenna at any rotated angle. Therefore, requirements are imposed on the relative positions of the receiver and the corresponding transmitting antenna.

[0003] However, due to errors, deformations, etc. to varying degrees during the installation and manufacturing processes of the slip ring, when the rotating gantry rotates, the relative positions of the receiver and the corresponding transmitting antenna will change, thus affecting the signal reception of the receiver. Summary of the Utility Model

[0004] Based on this, in view of the problem that the relative positions of the receiver and the corresponding transmitting antenna will change, it is necessary to provide a medical scanning imaging device, a slip ring, and their spacing adjustment device.

[0005] A spacing adjustment device for a slip ring, the slip ring including a fixed gantry, a rotating gantry, and a signal transmission unit, characterized in that the spacing adjustment device includes: a fixing member, a mounting member, and a telescopic assembly;

[0006] The fixing member is used for connecting with the fixed gantry, and the mounting member is used for abutting against the rotating gantry;

[0007] The fixing member and the mounting member are connected by the telescopic assembly, and the telescopic assembly is configured to adjust the spacing between the fixing member and the mounting member;

[0008] The mounting member is used for mounting the signal transmission unit.

[0009] In one embodiment, the telescopic assembly includes a first telescopic assembly, and the fixing member is connected to the mounting member via the first telescopic assembly;

[0010] Alternatively, the telescopic assembly includes a second telescopic assembly, and the mounting member is connected to the fixing member via the second telescopic assembly, and the telescopic directions of the first telescopic assembly and the second telescopic assembly are different.

[0011] In one embodiment, the telescopic assembly includes a connecting member, a first telescopic assembly, and a second telescopic assembly. The connecting member is connected to the fixing member through the first telescopic assembly, and the connecting member is connected to the mounting member through the second telescopic assembly. The telescopic directions of the first telescopic assembly and the second telescopic assembly are different.

[0012] In one embodiment, the first telescopic assembly includes a first guide rod and a first elastic member sleeved on the first guide rod. One end of the first guide rod is fixedly connected to the connecting member, the other end of the first guide rod is slidably connected to the fixing member, one end of the first elastic member abuts against the connecting member, and the other end of the first elastic member abuts against the fixing member.

[0013] In one embodiment, the second telescopic assembly includes a second guide rod and a second elastic member sleeved on the second guide rod. One end of the second guide rod is slidably connected to the connecting member, the other end of the second guide rod is fixedly connected to the mounting member, one end of the second elastic member abuts against the connecting member, and the other end of the second elastic member abuts against the mounting member.

[0014] In one embodiment, the spacing adjustment device includes at least one first roller. The first roller is rotatably connected to the mounting member, and the first roller is used for rolling abutting against the radially arranged surface of the rotating frame.

[0015] And / or, the spacing adjustment device includes at least one second roller. The second roller is rotatably connected to the mounting member, and the second roller is used for rolling abutting against the axially arranged surface of the rotating frame.

[0016] In one embodiment, the spacing adjustment device includes a movable structure. The first roller is rotatably arranged on the movable structure, and the movable structure is movably arranged on the mounting member.

[0017] In one embodiment, the fixing member is used for connecting to the rotating frame, and the mounting member is used for abutting against the fixed frame.

[0018] A slip ring includes a fixed frame, a rotating frame, and the spacing adjustment device of the slip ring according to any one of the claims. The fixed frame is rotationally coupled to the rotating frame.

[0019] A medical scanning imaging device includes the slip ring.

[0020] The above-mentioned medical scanning imaging device, slip ring and its spacing adjustment device, where the fixing member is connected to the fixed frame; the fixing member is connected to the mounting member through a telescopic assembly, and the telescopic assembly can automatically adjust the spacing between the fixing member and the mounting member so that when the rotating frame rotates, the mounting member always abuts against the rotating frame. That is, it further makes the spacing between the receiver and the corresponding transmitting antenna always remain at the preset spacing, thereby reducing the installation requirements for the rotating frame and compensating for the deformation caused by the unevenness of the slip ring itself or the mounting surface of the frame. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a slip ring in an embodiment.

[0022] Figure 2 It is Figure 1 a schematic structural diagram of the position A in

[0023] Figure 3 In an embodiment Figure 2 it is a schematic structural diagram of the spacing adjustment device.

[0024] Figure 4 It is a schematic structural diagram of the spacing adjustment device from another perspective in an embodiment.

[0025] Figure 5 It is a cross-sectional view of the spacing adjustment device in an embodiment.

[0026] Figure 6 It is a schematic structural diagram of the first telescopic assembly in an embodiment.

[0027] Reference numerals: 10, fixed frame; 20, rotating frame; 30, spacing adjustment device;

[0028] 100, fixing member; 110, first receiving groove;

[0029] 200, mounting member; 210, receiver; 220, transmitting antenna;

[0030] 300, telescopic assembly; 310, first telescopic assembly; 311, first guide rod; 312, first elastic member; 313, first limiting block; 314, first linear bearing; 315, first guide groove; 320, connecting member; 330, second telescopic assembly; 331, second guide rod; 332, second elastic member;

[0031] 400, first roller; 410, movable structure; 411, moving block; 412, waist-shaped hole;

[0032] 500, second roller. Detailed Description of the Invention

[0033] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of 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.

[0034] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application.

[0035] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes 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 the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0036] In the present application, unless otherwise clearly specified and limited, if terms such as "install", "connect", "join", "fix", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can 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 the present application can be understood according to specific circumstances.

[0037] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning can 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 can be that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0039] Refer to Figures 1-3 , an embodiment of the present application discloses a spacing adjustment device for a slip ring. The slip ring includes a fixed frame 10, a rotating frame and a signal transmission unit. The rotating frame 20 is rotationally coupled to the fixed frame 10. The spacing adjustment device 30 includes a fixing member 100, a mounting member 200 and a telescopic assembly 300. The fixing member 100 is used to connect to the fixed frame; the fixing member 100 is connected to the mounting member 200 through the telescopic assembly 300. The telescopic assembly 300 is configured to automatically adjust the spacing between the fixing member 100 and the mounting member 200 so that the mounting member 200 abuts against the rotating frame 20; the mounting member 200 is used to mount the signal transmission unit, and the signal transmission unit includes a receiver 210 and / or a transmitting antenna 220.

[0040] Wherein the fixing member 100 can be a fixing plate, a fixing block or a fixing rod. The mounting member 200 can be a mounting plate, a mounting block or a mounting rod.

[0041] It should be noted that the spacing adjustment device 30 of the present application can be used to be mounted on a one-way signal transmission slip ring, such as the slip ring of a CT machine. At this time, a rotor is provided on the rotating frame 20. The fixing member 100 is connected to the fixed frame 10, and the mounting member 200 abuts against the rotor. The signal transmission unit includes any one of the receiver 210 and the transmitting antenna 220, and the other one of the receiver 210 and the transmitting antenna 220 is provided on the rotor for realizing one-way signal transmission.

[0042] Alternatively, the spacing adjustment device 30 of the present application can also be used to be arranged on a bidirectional signal transmission slip ring, such as the slip ring of an RT machine. At this time, a stator is arranged on the fixed frame 10, and a rotor is arranged on the rotating frame. The fixing member 100 is connected to the stator, and the mounting member 200 abuts against the rotor. The signal transmission unit includes a receiver 210 and a transmitting antenna 220. The receiver 210 and the transmitting antenna 220 are also arranged on the rotor for realizing bidirectional signal transmission.

[0043] In this embodiment, the fixing member 100 and the mounting member 200 are connected by a telescopic assembly 300. The telescopic assembly 300 can make the mounting member 200 always abut against the rotating frame 20, so as to further make the distance between the receiver 210 and the corresponding transmitting antenna always remain at a preset distance, thereby reducing the installation requirements for the rotating frame 20 and compensating for the deformation caused by the uneven installation surface of the rotating frame 20 or the fixed frame 10.

[0044] In some embodiments, the telescopic assembly 300 includes a first telescopic assembly 310. One end of the fixing member 100 along the first direction OX is connected to the mounting member 200 through the first telescopic assembly 310, and the first telescopic assembly 310 is used for telescoping along the first direction OX; alternatively, the telescopic assembly 300 includes a second telescopic assembly 330. One end of the mounting member 200 along the second direction OY is connected to the fixing member 100 through the second telescopic assembly 330, and the second telescopic assembly 330 is used for telescoping along the second direction OY.

[0045] Wherein, the first direction OX can be the radial direction of the slip ring, and the second direction OY can be the axial direction of the slip ring. It can also be that the first direction OX and the second direction OY are respectively different directions.

[0046] In some of these embodiments, the telescopic assembly 300 includes a first telescopic assembly 310. One end of the fixing member 100 along the first direction OX is connected to the mounting member 200 through the first telescopic assembly 310, and the first telescopic assembly 310 is configured to telescope along the first direction OX. When the axial distance between the fixed frame 10 and the rotating frame 20 changes during the rotation of the rotating frame 20, the first telescopic assembly 310 automatically telescopes so that the mounting member 200 always abuts against the fixed frame 10 radially, that is, to ensure that the relative position of the receiver 210 and the corresponding transmitting antenna radially remains unchanged.

[0047] In some other embodiments, the telescopic assembly 300 includes a second telescopic assembly 330. One end of the mounting member 200 along the second direction OY is connected to the fixing member 100 through the second telescopic assembly 330, and the second telescopic assembly 330 is configured to telescope along the second direction OY. When the rotating frame 20 rotates and the axial distance between the fixed frame 10 and the rotating frame 20 changes, the second telescopic assembly 330 automatically telescopes so that the mounting member 200 always abuts against the fixed frame 10 axially, that is, to ensure that the relative positions of the receiver 210 and the corresponding transmitting antenna along the axis remain unchanged.

[0048] Combined with Figures 3-6 , in other embodiments, the telescopic assembly 300 includes a connecting member 320, a first telescopic assembly 310, and a second telescopic assembly 330. One end of the connecting member 320 along the first direction OX is connected to the fixing member 100 through the first telescopic assembly 310, and one end of the connecting member 320 along the second direction OY is connected to the mounting member 200 through the second telescopic assembly 330. The first telescopic assembly 310 is configured to telescope along the first direction OX, and the second telescopic assembly 330 is configured to telescope along the second direction OY.

[0049] Specifically, the first direction OX is perpendicular to the second direction OY. When the rotating frame 20 rotates and the radial distance between the fixed frame 10 and the rotating frame 20 changes, at this time, the first telescopic assembly 310 automatically telescopes to push the mounting member 200 radially through the connecting member 320, so that the mounting member 200 always abuts against the fixed frame 10 radially, that is, to ensure that the relative positions of the receiver 210 and the corresponding transmitting antenna along the radial direction remain unchanged. At the same time, the second telescopic assembly 330 automatically telescopes to push the mounting member 200 axially through the connecting member 320, so that the mounting member 200 always abuts against the fixed frame 10 axially, that is, to ensure that the relative positions of the receiver 210 and the corresponding transmitting antenna along the axis remain unchanged.

[0050] In some embodiments, the first telescopic assembly 310 includes a first guide rod 311 with a length direction along the first direction OX and a first elastic member 312 sleeved on the first guide rod 311. One end of the first guide rod 311 is fixedly connected to the connecting member 320, the other end of the first guide rod 311 is slidably connected to the fixing member 100, one end of the first elastic member 312 abuts against the connecting member 320, and the other end of the first elastic member 312 abuts against the fixing member 100.

[0051] In this embodiment, the first elastic member 312 is sleeved on the first guide rod 311, and the first guide rod 311 is used to enable the first elastic member 312 to expand and contract along the first direction OX. The first elastic member 312 is compressed between the connecting member 320 and the fixing member 100 along the first direction OX, and the fixing member 100 is fixedly connected to the rotating frame 20. It can be considered that one end of the first elastic member 312 connected to the fixing member 100 is fixed. Through the elastic force of the first elastic member 312 itself, the other end of the first elastic member 312 drives the mounting member 200 to move along the first direction OX through the connecting member 320, so that the mounting member 200 abuts against the fixed frame 10. That is, when the mounting member 200 is affected by radial errors, the first elastic member 312 offsets the errors by stretching or compressing.

[0052] At the same time, since one end of the first guide rod 311 is slidably connected to the fixing member 100, when the first elastic member 312 expands and contracts, the first guide rod 311 can expand and contract synchronously, so that both ends of the first elastic member 312 can always abut against the connecting member 320 and the fixing member 100.

[0053] Of course, in other embodiments, it may also be that one end of the first guide rod 311 is slidably connected to the connecting member 320, and the other end of the first guide rod 311 is fixedly connected to the fixing member 100; or one end of the first guide rod 311 is slidably connected to the connecting member 320, and the other end of the first guide rod 311 is slidably connected to the fixing member 100. That is, as long as it is ensured that the connection method of at least one end of the first guide rod 311 is a sliding connection.

[0054] In some embodiments, the second telescopic assembly 330 includes a second guide rod 331 whose length direction is along the second direction OY and a second elastic member 332 sleeved on the second guide rod 331. One end of the second guide rod 331 is slidably connected to the connecting member 320, the other end of the second guide rod 331 is fixedly connected to the mounting member 200, one end of the second elastic member 332 abuts against the connecting member 320, and the other end of the second elastic member 332 abuts against the mounting member 200.

[0055] In this embodiment, the second elastic member 332 is sleeved on the second guide rod 331, and the second guide rod 331 is used to enable the second elastic member 332 to expand and contract along the second direction OY. That is, the second elastic member 332 is compressed along the second direction OY between the connecting member 320 and the mounting member 200. Since the fixing member 100 is fixedly connected to the rotating frame 20, the connecting member 320 can only move relative to the fixing member 100 along the first direction OX and cannot move along the second direction OY. It can be considered that the connecting member 320 is fixed along the second direction OY. One end of the second elastic member 332 close to the connecting member 320 is fixed. At this time, through the elastic force of the second elastic member 332 itself, one end of the second elastic member 332 close to the mounting member 200 can push the mounting member 200 to move along the second direction OY to abut against the fixed frame 10. That is, when the mounting member 200 is affected by the axial jump of the fixed frame and the rotating frame 20, the second elastic member 332 offsets the error by stretching or compressing.

[0056] At the same time, since one end of the second guide rod 331 is slidably connected to the connecting member 320, when the second elastic member 332 expands and contracts, the second guide rod 331 can expand and contract synchronously, so that both ends of the second elastic member 332 can always abut against the connecting member 320 and the fixing member 100 respectively.

[0057] Of course, in other embodiments, it may also be that one end of the second guide rod 331 is fixedly connected to the connecting member 320, and the other end of the second guide rod 331 is slidably connected to the mounting member 200; or one end of the second guide rod 331 is slidably connected to the connecting member 320, and the other end of the second guide rod 331 is slidably connected to the mounting member 200. That is, as long as it is ensured that the connection method of at least one end of the second guide rod 331 is a sliding connection.

[0058] Among them, in combination Figure 5 and Figure 6 , the first telescopic assembly 310 includes a first limiting block 313 and a first linear bearing 314 arranged on the first limiting block 313. A first guide groove 315 coaxial with the first linear bearing 314 is formed on the first limiting block 313. One end of the first guide rod 311 passes through the first linear bearing 314 and is threadedly connected to the connecting member 320, and the other end of the first guide rod 311 is located in the first guide groove 315 and is locked by a nut. A plurality of first receiving grooves 110 are formed in the fixing member 100, and the first limiting block 313 is fixed in any first receiving groove 110 by screws, and the first guide rod 311 passes through the first receiving groove 110 and extends outside the fixing member 100. Among them, the pre-tightening force of the first elastic member 312 along the first direction OX can be adjusted by adjusting the number of the first telescopic assemblies 310.

[0059] The same second telescopic component 330 can adopt the same structure as the first telescopic component 310. Similarly, the number of the second telescopic components 330 is adjusted to further adjust the pre-tightening force of the second elastic member 332 along the second direction OY.

[0060] In some other embodiments, the first telescopic component includes a telescopic block, a distance sensor, and a temperature adjusting member. The telescopic block is made of a temperature-variable material, and a fixed housing is disposed on the circumferential outer side of the telescopic block perpendicular to the first direction. When the temperature changes, under the limiting action of the fixed housing, the telescopic block can only expand and contract along the first direction, so as to push the mounting member to move along the first direction through a connecting member. Specifically, the temperature adjusting member is disposed on the fixed housing, and the distance sensor is in signal connection with the temperature adjusting member. When the distance sensor detects that the distance between the receiver and the corresponding transmitting antenna changes, a signal is transmitted to the temperature adjusting member, and the temperature adjusting member heats or cools the telescopic block to achieve the expansion and contraction of the telescopic block. The same second telescopic component can also adopt the above structure.

[0061] In some embodiments, the spacing adjusting device 30 includes at least one first roller 400, the first roller 400 is rotatably connected to the mounting member 200, and the first roller 400 is configured to rollingly abut against the surface of the rotating frame 20 disposed in the radial direction. And / or, the spacing adjusting device 30 includes at least one second roller 500, the second roller 500 is rotatably connected to the mounting member 200, and the second roller 500 is configured to rollingly abut against the surface of the rotating frame 20 disposed in the axial direction.

[0062] Combined with Figure 4 , in some of these embodiments, the spacing adjusting device 30 includes a first roller 400 that rotates around the second direction OY. The first roller 400 is rotatably connected to the mounting member 200, and the surface of the first roller 400 protrudes from the surface of the mounting member 200 along the first direction OX. The first roller 400 is configured to rollingly abut against the rotating frame 20.

[0063] In this embodiment, taking the receiver 210 being disposed on the mounting member 200 as an example. When the first roller 400 rolls and abuts against the surface of the rotating frame 20 around the second direction OY, the spacing between the fixing member 100 and the mounting member 200 along the first direction OX remains unchanged, that is, the spacing between the receiver 210 and the transmitting antenna on the fixed frame 10 along the first direction OX also remains unchanged, ensuring the stability of the signal transmission between the two. Secondly, by the rolling abutment of the first roller 400 and the surface of the mounting member 200 along the first direction OX, the friction between the two can also be reduced.

[0064] Specifically, first rollers 400 are respectively disposed at both ends of the mounting plate along the third direction OZ, and the two first rollers 400 simultaneously rollingly abut against the rotating frame 20. The first direction OX, the second direction OY, and the third direction OZ are perpendicular to each other in pairs.

[0065] In some embodiments, the spacing adjustment device 30 includes a movable structure 410, on which a roller is rotatably arranged, and the movable structure 410 is movably arranged on the mounting member 200 along the first direction OX.

[0066] Specifically, the movable structure 410 is used to drive the roller to move along the first direction OX, so as to change the height of the roller protruding from the surface of the mounting plate along the first direction OX, and further to change the spacing between the mounting member 200 and the fixing member 100 along the first direction OX, so as to adapt to the spacing requirements between different receivers 210 and the corresponding transmitting antennas, or to adapt to different spacings between the fixed frame 10 and the rotating frame 20 of different slip rings.

[0067] The movable structure 410 includes a moving block 411, and a waist-shaped hole 412 with a length direction along the first direction OX is formed in the moving block 411. Screws sequentially pass through the waist-shaped hole 412 and the threaded hole on the mounting member 200 to fix the moving block 411 on the mounting member 200.

[0068] In some other embodiments, the spacing adjustment device 30 includes a second roller 500 that rotates around the first direction OX. The second roller 500 is rotatably connected to the mounting member 200, and the second roller 500 is configured to rollingly abut against the rotating frame 20. The number of the second rollers 500 is two, and the two second rollers 500 simultaneously rollingly abut against the rotating frame 20.

[0069] In this embodiment, taking the receiver 210 being provided on the mounting member 200 as an example, when the second roller 500 rolls and abuts against the surface of the rotating frame 20 around the first direction OX, the spacing between the fixing member 100 and the mounting member 200 along the second direction OY remains unchanged, that is, the spacing between the receiver 210 and the transmitting antenna on the fixed frame along the second direction OY also remains unchanged, ensuring the stability of signal transmission between the two. Secondly, by the second roller 500 rolling and abutting against the surface of the mounting member 200 along the second direction OY, the friction between the two can also be reduced.

[0070] In other embodiments, the spacing adjustment device 30 includes at least one first roller 400 and at least one second roller 500. The first roller 400 is rotatably connected to the mounting member 200, and the first roller 400 is used to rollingly abut against the surface of the rotating frame 20 arranged radially. The second roller 500 is rotatably connected to the mounting member 200, and the second roller 500 is used to rollingly abut against the surface of the rotating frame 20 arranged axially.

[0071] In some other embodiments, the mounting positions of the fixing member 100 and the mounting member 200 can also be interchanged, that is, the fixing member 100 is used to connect to the rotating frame 20, and the mounting member 200 is used to abut against the fixed frame 10.

[0072] One embodiment of the present application discloses a slip ring, which includes a fixed frame 10, a rotating frame 20, and a spacing adjustment device 30 of the slip ring. The fixed frame 10 is rotationally coupled with the rotating frame 20. A fixing member 100 is connected to the fixed frame 10, and a mounting member 200 abuts against the rotating frame 20.

[0073] In this embodiment, the fixing member 100 and the mounting member 200 are connected by a telescopic assembly 300. The telescopic assembly 300 can make the mounting member 200 always abut against the rotating frame 20, so as to further keep the spacing between the receiver 210 and the corresponding transmitting antenna always at a preset spacing, thereby reducing the installation requirements for the rotating frame 20, compensating for the deformation caused by the unevenness of the rotating frame 20 itself or the mounting surface of the frame, and reducing the coaxiality requirements between the fixed frame 10 and the rotating frame 20.

[0074] One embodiment of the present application discloses a medical scanning imaging device, including the above-mentioned slip ring.

[0075] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0076] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on 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 spacing adjustment device (30) for a slip ring, the slip ring comprising a fixed frame (10), a rotating frame (20), and a signal transmission unit, characterized in that, The spacing adjustment device (30) includes: a fixing member (100), a mounting member (200), and a telescopic assembly (300); The fixing member (100) is used to connect with the fixed frame (10), and the mounting member (200) is used to abut against the rotating frame (20); The fixing member (100) is connected to the mounting member (200) through the telescopic assembly (300), and the telescopic assembly (300) is configured to adjust the spacing between the fixing member (100) and the mounting member (200); The mounting member (200) is used to mount the signal transmission unit.

2. The pitch adjustment device (30) of the slip ring according to claim 1, characterized in that, The telescopic assembly (300) includes a first telescopic assembly (310), and the fixing member (100) is connected to the mounting member (200) via the first telescopic assembly (310); Alternatively, the telescopic assembly (300) includes a second telescopic assembly (330), the mounting member (200) is connected to the fixing member (100) via the second telescopic assembly (330), and the telescopic directions of the first telescopic assembly (310) and the second telescopic assembly (330) are different.

3. The spacing adjustment device (30) of the slip ring according to claim 1, characterized in that, The telescopic assembly (300) includes a connecting member (320), a first telescopic assembly (310), and a second telescopic assembly (330). The connecting member (320) is connected to the fixing member (100) through the first telescopic assembly (310), and the connecting member (320) is connected to the mounting member (200) through the second telescopic assembly (330). The telescopic directions of the first telescopic assembly (310) and the second telescopic assembly (330) are different.

4. The pitch adjusting device (30) of the slip ring according to claim 3, characterized in that, The first telescopic assembly (310) includes a first guide rod (311) and a first elastic member (312) sleeved on the first guide rod (311). One end of the first guide rod (311) is fixedly connected to the connecting member (320), the other end of the first guide rod (311) is slidably connected to the fixing member (100), one end of the first elastic member (312) abuts against the connecting member (320), and the other end of the first elastic member (312) abuts against the fixing member (100).

5. The pitch adjustment device (30) of the slip ring according to claim 3, characterized in that, The second telescopic assembly (330) includes a second guide rod (331) and a second elastic member (332) sleeved on the second guide rod (331). One end of the second guide rod (331) is slidably connected to the connecting member (320), the other end of the second guide rod (331) is fixedly connected to the mounting member (200), one end of the second elastic member (332) abuts against the connecting member (320), and the other end of the second elastic member (332) abuts against the mounting member (200).

6. The pitch adjusting device (30) of the slip ring according to claim 3, characterized in that, The spacing adjustment device (30) includes at least one first roller (400). The first roller (400) is rotatably connected to the mounting member (200), and the first roller (400) is used to rollingly abut against the radially arranged surface of the rotating frame (20); And / or, the spacing adjustment device (30) includes at least one second roller (500), the second roller (500) is rotatably connected to the mounting member (200), and the second roller (500) is used for rolling abutting against the axially arranged surface of the rotating frame (20).

7. The pitch adjustment device (30) of the slip ring according to claim 6, characterized in that, The spacing adjustment device (30) includes a movable structure (410), the first roller (400) is rotatably arranged on the movable structure (410), and the movable structure (410) is movably arranged on the mounting member (200).

8. The spacing adjusting device (30) of the slip ring according to any one of claims 1-7, characterized in that, The fixing member (100) is used for connecting with the rotating frame (20), and the mounting member (200) is used for abutting against the fixed frame (10).

9. A slip ring, characterized in that, It includes a fixed frame (10), a rotating frame (20) and a spacing adjustment device (30) of the slip ring according to any one of claims 1-8, and the fixed frame (10) is rotationally coupled with the rotating frame (20).

10. A medical scanning imaging device, characterized in that, It includes the slip ring according to claim 9.

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