Storage device, read-write device, storage system and electronic device

Abstract

The invention discloses a storage device, a read-write device, a storage system and an electronic device, and aims to solve the problem that the time delay of data reading and writing is relatively large. A first storage band and a second storage band of the storage device are configured to be arranged at an interval along an axis in a data read-write state, so that a first magnetic head is aligned with the first storage band or the second storage band. In a non-data write state, the first memory tape and the second memory tape are configured to approach each other in the axial direction. Through the arrangement, when data are read, the first magnetic head can be aligned with the first storage band or the second storage band so as to read the data on the first storage band or the second storage band; when data is written, the first magnetic head can be aligned with the first storage band or the second storage band so as to write data into the first storage band or the second storage band; the position of the written data can be accurately positioned, and the time delay in the data reading and writing process is shortened.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of storage devices, and specifically to a storage device, a read-write device, a storage system, and an electronic device. Background Art

[0002] The tape storage has been widely used in storage devices due to its long storage time and large capacity. In the related art, the tape storage includes a magnetic tape, a first tape reel and a second tape reel, the magnetic tape is wound on the first tape reel and the second tape reel, and a magnetic track is arranged on the magnetic tape, and data is stored through the magnetic track. During use, the first tape reel and the second tape reel are generally driven to rotate by a tape drive, at which time part of the magnetic tape is unwound by the first tape reel, and the magnetic tape between the first tape reel and the second tape reel moves toward the second tape reel and is wound on the second tape reel. During this process, the tape drive can read the data on the magnetic tape between the first tape reel and the second tape reel, or write data to the magnetic tape between the first tape reel and the second tape reel. However, when reading or writing data, it is necessary to drive the first tape reel and the second tape reel to rotate so that the magnetic tape at a specific position is located between the first tape reel and the second tape reel, resulting in a large data reading and writing delay of the tape storage. Summary of the invention

[0003] Embodiments of the present application provide a storage device, a read-write device, a storage system, and an electronic device, which can reduce the delay in the data reading and writing process.

[0004] In a first aspect, an embodiment of the present application provides a storage device, comprising: a first storage belt and a second storage belt, the first storage belt and the second storage belt are both ring-shaped, and the first storage belt and the second storage belt are both used to store data; the axes of the first storage belt and the second storage belt are arranged in a colinear manner, and the first storage belt and the second storage belt are configured to be arranged at intervals along the axis when the storage device is in a data reading and writing state.

[0005] Through the above arrangement, the first storage belt and the second storage belt are configured to be spaced apart along the axis in the data reading and writing state, that is, the first storage belt and the second storage belt are away from each other along the axis direction, so that the first magnetic head is aligned with the first storage belt or the second storage belt. In the non-data writing state, the first storage belt and the second storage belt are configured to be close to each other along the axis direction to reduce the space occupied by the first storage belt and the second storage belt. The data reading and writing state is a state in which data is read and written, and the non-data reading and writing state is a state in which data is not read and written (such as a non-working state). With such an arrangement, when reading data, the first magnetic head can be aligned with the first storage tape or the second storage tape to read the data on the first storage tape or the second storage tape. Compared with winding the magnetic tape around the first tape reel and the second tape reel for multiple turns, the annular first storage tape and the second storage tape can accurately locate the position of the data, thereby reducing the delay when reading data; when writing data, the first magnetic head can be aligned with the first storage tape or the second storage tape to write data to the first storage tape or the second storage tape; the position of the written data can be accurately located, thereby reducing the delay in writing data; that is, the storage device provided in the embodiment of the present application can reduce the delay in reading and writing data, thereby improving the performance of the device during storage.

[0006] In some embodiments that may include the above-mentioned embodiments, the outer diameter of the first storage tape and the outer diameter of the second storage tape may be equal, and accordingly, when the storage device is in a non-reading and writing state, the first storage tape and the second storage tape approach each other in a direction parallel to the axis of the first storage tape, and the first storage tape and the second storage tape may also form a cylindrical structure to reduce the space occupied by the first storage tape and the second storage tape.

[0007] In some embodiments that may include the above embodiments, the outer diameter of the second storage tape is smaller than the inner diameter of the first storage tape, and the second storage tape is further configured to move into the first storage tape when the storage device is in a non-data read / write state. That is, in the non-data read / write state, the first storage tape is sleeved outside the second storage tape; in the data read / write state, the second storage tape moves outside the first storage tape. In this way, the space occupied by the first storage tape and the second storage tape in the non-data read / write state can be further reduced.

[0008] In some embodiments that may include the above embodiments, there are multiple second storage belts, and when the storage device is in a data reading and writing state, each second storage belt is arranged at intervals along the axis, and the outer diameters of each second storage belt located on one side of the first storage belt along the axis direction are different. In this way, multiple second storage belts can all store data, thereby increasing the capacity of the storage device. In addition, the outer diameters of each second storage belt located on one side of the first storage belt in the axis direction are different, so that in a non-data reading and writing state, each second storage belt can be nested together and located inside the first storage belt, so as to reduce the space occupied by the first storage belt and each second storage belt.

[0009] In some embodiments that may include the above embodiments, when the storage device is in a data reading and writing state, the outer diameter of each second storage belt gradually decreases in a direction away from the first storage belt; in the data reading and writing state, each second storage belt moves in a direction away from the first storage belt, and at this time, the first storage belt and each second storage belt can form a trumpet shape. Through the above arrangement, when each second storage belt moves in a direction close to the first storage belt and gradually enters the first storage belt, since the outer diameter of each second storage belt gradually decreases, interference between the second storage belts can be avoided.

[0010] In some embodiments that may include the above-mentioned embodiments, when the storage device is in a data reading and writing state, the outer diameter of each second storage tape is not related to the distance between the second storage tape and the first storage tape, and accordingly, when the storage device is in a data reading and writing state, the first storage tape and each second storage tape form an irregular shape.

[0011] In some embodiments that may include the above embodiments, the first storage tape includes a first tape base in an annular shape, a first outer magnetic track disposed on an outer wall of the first tape base, and a first inner magnetic track disposed on an inner wall of the first tape base, and the first outer magnetic track and the first inner magnetic track are disposed around an axis. Both the first outer magnetic track and the first inner magnetic track can store data, and the capacity of the storage device can be increased.

[0012] In some embodiments that may include the above embodiments, the first outer magnetic track and the first inner magnetic track are both annular or spiral. The first outer magnetic track and the first inner magnetic track arranged in a spiral shape are relatively long, which can increase the capacity of the storage device.

[0013] In some embodiments that may include the above embodiments, the second storage tape includes a second tape base, a second inner magnetic track disposed on an inner wall of the second tape base, and a second outer magnetic track disposed on an outer wall of the second tape base, and the second inner magnetic track and the second outer magnetic track are disposed around the axis. In this arrangement, both the second outer magnetic track and the second inner magnetic track can store data, and the capacity of the storage device can be increased.

[0014] In some embodiments that may include the above embodiments, the second inner magnetic track and the second outer magnetic track are both annular or spiral. The second inner magnetic track and the second outer magnetic track arranged in a spiral shape are relatively long, which can increase the capacity of the storage device.

[0015] In some embodiments that may include the above embodiments, the storage device further includes a first support wheel and a second support wheel, the first storage belt is supported on the first support wheel, the second storage belt is supported on the second support wheel, and the axis of the first support wheel, the axis of the second support wheel and the axis of the first storage belt are collinearly arranged. The above arrangement facilitates the fixing of the first storage belt and the second storage belt, and in addition, the driving device drives the first storage belt to rotate through the first support wheel, and the driving device drives the second storage belt to rotate through the second support wheel, which can avoid direct contact between the driving device and the first storage belt and the second storage belt, thereby avoiding damage to the first storage belt and the second storage belt, and improving the service life of the storage device.

[0016] In some embodiments that may include the above embodiments, the storage device further includes a first magnet and a second magnet, the first magnet is arranged on the first storage belt, and the second magnet is arranged on the second storage belt, and in the data reading and writing state, the first magnet and the second magnet drive the first storage belt and the second storage belt to move in a direction parallel to the axis under the action of magnetic force, so that the first storage belt and the second storage belt are arranged to be spaced apart in a direction parallel to the axis. Through the above arrangement, the driving device can generate magnetic force to drive the first storage belt and the second storage belt to move in a direction parallel to the axis, and the driving device does not directly contact the first storage belt and the second storage belt, which can avoid damage to the first storage belt and the second storage belt, thereby increasing the service life of the storage device. In addition, the driving device does not directly contact the first storage belt and the second storage belt, which can also reduce the rotational resistance of the first storage belt and the second storage belt.

[0017] In some embodiments that may include the above-mentioned embodiments, the driving device includes a first driving coil and a second driving coil, the first magnet is located in the magnetic field of the first driving coil, and the second magnet is located in the magnetic field of the second driving coil; the magnetic fields generated by the first driving coil and the second driving coil rotate, so that the first storage belt and the second storage belt can be driven to rotate while the first storage belt and the second storage belt are driven to be suspended, thereby further avoiding damage to the first storage belt and the second storage belt, and further improving the service life of the storage device.

[0018] In a second aspect, an embodiment of the present application also provides a read-write device for use with the storage device as described above, the read-write device comprising a first magnetic head and a drive device, the first magnetic head being configured to write data to a first storage tape or a second storage tape, and the first magnetic head being further configured to read data on the first storage tape or the second storage tape; the drive device being used to connect to the first storage tape and the second storage tape, the drive device being used to drive the first storage tape and the second storage tape to rotate; the drive device being further used to drive the first storage tape and the second storage tape to move in a direction parallel to the axis when the storage device is in a data read-write state, so that the first storage tape and the second storage tape are spaced apart along the axis.

[0019] The reading and writing device provided in the embodiments of the present application includes the storage device in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.

[0020] In a third aspect, an embodiment of the present application further provides a storage device, comprising: a first storage belt, the first storage belt is spirally arranged around its axis, and the first storage belt is used to store data; the first storage belt is configured to extend along the axis direction when the storage device is in a data reading and writing state, and to contract along the axis direction when the storage device is in a non-data reading and writing state.

[0021] Through the above arrangement, when reading data, the first storage tape is extended, so that the first magnetic head can accurately locate a certain turn of the first storage tape, that is, the position of the data can be accurately located, thereby reducing the delay in reading data; when writing data, the first magnetic head can accurately locate a certain turn of the first storage tape, that is, the position of the write data can be accurately located, thereby reducing the delay in writing data; that is, the delay in data reading and writing is reduced, thereby improving the performance of the device during storage.

[0022] In some embodiments that may include the above embodiments, the first storage tape includes a first tape base in an annular shape, a first outer magnetic track disposed on an outer wall of the first tape base, and a first inner magnetic track disposed on an inner wall of the first tape base, the first outer magnetic track and the first inner magnetic track being disposed in a spiral shape around an axis. The first tape base is used to carry the first outer magnetic track, and the first outer magnetic track can store data.

[0023] The first inner magnetic track and the first outer magnetic track can both be used for data storage, thereby increasing the capacity of the storage device.

[0024] In some embodiments that may include the above embodiments, the storage device further includes a second storage belt, the second storage belt is spirally arranged around the axis, and the second storage belt is used to store data; the outer diameter of the second storage belt is smaller than the inner diameter of the first storage belt; the second storage belt is configured to extend in a direction parallel to the axis when the storage device is in a data reading and writing state, and extend from the inside of the space surrounded by the first storage belt; the second storage belt is also configured to shrink in a direction parallel to the axis when the storage device is in a non-data reading and writing state, and shrink into the space surrounded by the first storage belt. Through the above arrangement, the first storage belt and the second storage belt can both be used to store data, thereby increasing the capacity of the storage device; in addition, in the non-data reading and writing state, the second storage belt shrinks into the first storage belt, which can reduce the space occupied by the first storage belt and the second storage belt.

[0025] In some embodiments that may include the above embodiments, the second storage tape includes a second tape base and a second outer magnetic track disposed on an outer wall of the second tape base, the second outer magnetic track being disposed in a spiral shape around an axis. The second tape base is used to carry the second outer magnetic track, and the second outer magnetic track can store data.

[0026] In some embodiments that may include the above embodiments, the second storage tape includes a second tape base and a second inner magnetic track disposed on an inner wall of the second tape base, the second inner magnetic track being disposed in a spiral shape around the axis. The second tape base is used to carry the second inner magnetic track, and the second inner magnetic track can store data.

[0027] In some embodiments that may include the above-mentioned embodiments, the second storage tape includes a second tape base, a second outer magnetic track arranged on the outer wall of the second tape base, and a second inner magnetic track arranged on the inner wall of the second tape base, and both the second inner magnetic track and the second outer magnetic track can be used for data storage, thereby increasing the capacity of the storage device.

[0028] In a fourth aspect, an embodiment of the present application further provides a read-write device for use with the storage device as described above, the read-write device comprising a first magnetic head and a drive device, the first magnetic head being configured to write data to a first storage tape or read data on the first storage tape; the drive device being connected to the first storage tape, the drive device being configured to drive the first storage tape to extend along an axial direction when the storage device is in a data read-write state, and the drive device being further configured to drive the first storage tape to contract along an axial direction when the storage device is in a non-data read-write state.

[0029] The reading and writing device provided in the embodiments of the present application includes the storage device in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.

[0030] In a fifth aspect, an embodiment of the present application provides a storage system, including: a read-write device and the storage device as described above, the read-write device is connected to the storage device, and the read-write device is used to read data stored in the storage device or write data to the storage device.

[0031] The storage system provided in the embodiments of the present application includes the storage device in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects.

[0032] In a sixth aspect, an embodiment of the present application provides an electronic device, comprising: a controller and the storage system as described above, wherein the controller is electrically connected to the storage system.

[0033] The electronic device provided in the embodiments of the present application includes the storage system in any of the above embodiments, so the two can solve the same technical problems and achieve the same technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the connection between a storage device and a tape drive in the related art;

[0035] Figure 2 A logic block diagram on a magnetic tape in the related art;

[0036] Figure 3 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 1 ;

[0037] Figure 4 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 2 ;

[0038] Figure 5 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 3 ;

[0039] Figure 6 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 4 ;

[0040] Figure 7 A schematic diagram of the structure of a first storage band in a storage device provided in an embodiment of the present application;

[0041] Figure 8 A schematic diagram of the structure of the storage device provided in the embodiment of the present application in a non-data reading and writing state Figure 1 ;

[0042] Fig. 9 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 5 ;

[0043] Fig.10A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 6 ;

[0044] Fig.11 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 7 ;

[0045] Fig.12 A schematic diagram of the structure of the storage device provided in the embodiment of the present application in a non-data reading and writing state Figure 2 ;

[0046] Fig.13 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 8 ;

[0047] Fig.14 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 9 ;

[0048] Fig.15 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 ;

[0049] Fig.16 A schematic diagram of the structure of the storage device provided in the embodiment of the present application in a non-data reading and writing state Figure 3 ;

[0050] Fig.17 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 one;

[0051] Fig.18 A schematic diagram of the structure of the storage device provided in the embodiment of the present application in a non-data reading and writing state Figure 4 ;

[0052] Fig.19 A schematic diagram of the structure of the storage device provided in the embodiment of the present application in a non-data reading and writing state Figure 5 ;

[0053] Fig. 20 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 two;

[0054] Fig.21 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 three;

[0055] Fig. 22 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 Four;

[0056] Fig.23 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 five;

[0057] Fig.24 A schematic diagram of a storage device provided in an embodiment of the present application performing data reading or writing;

[0058] Fig.25 A schematic diagram of replacing a storage device in a storage system provided in an embodiment of the present application;

[0059] Fig.26 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 six;

[0060] Fig. 27 A schematic diagram of the structure of the storage device provided in the embodiment of the present application Figure 10 seven.

[0061] Description of reference numerals:

[0062] 10: first storage tape; 20: second storage tape; 101: first tape reel; 102: second tape reel; 103: magnetic tape; 104: magnetic track; 110: first tape base; 111: first outer magnetic track; 112: first inner magnetic track; 113: first support wheel; 114: first wheel body; 115: first wheel hub; 116: first magnet; 201: drive motor; 202: read / write head; 203: guide wheel; 210: second tape base; 211: second outer magnetic track; 212: second inner magnetic track; 213: second support wheel; 214: second wheel body; 215: second wheel hub; 216: second magnet; 30: read / write device; 310: drive device; 311: first bushing; 312: second bushing; 313: first drive coil; 314: second drive coil; 320: first head; 330: second head. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0064] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0065] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left", "right", "horizontal" and "vertical" are defined relative to the orientation of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components placed in the drawings.

[0066] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, an electrical connection, a coupled connection, or a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium. Among them, coupling can be understood as direct coupling and / or indirect coupling, and "coupled connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction of components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitor through coupling between the gap between two conductive parts.

[0067] Tape storage has been widely used in storage devices due to its long storage time and large capacity. Figure 1 and Figure 2 In the related art, the tape storage includes a tape 103, a first tape reel 101 and a second tape reel 102. The tape 103 is wound around the first tape reel 101 and the second tape reel 102. The tape 103 is provided with a track 104, and data is stored through the track 104. The tape drive is used to write and read data on the tape storage. The tape drive includes a drive motor 201, a read / write head 202 and a guide wheel 203. The drive motor 201 is connected to the first tape reel 101 or the second tape reel 102 to drive the first tape reel 101 and the second tape reel 102 to rotate. The guide wheel 203 is used to guide the tape 103 between the first tape reel 101 and the second tape reel 102. The read / write head 202 is arranged near the guide wheel 203. The read / write head 202 is used to read data on the tape 103 between the first tape reel 101 and the second tape reel 102. The read / write head 202 is also used to write data to the tape 103 between the first tape reel 101 and the second tape reel 102.

[0068] When data is written, the first tape reel 101 and the second tape reel 102 are driven to rotate by the driving motor 201. At this time, part of the magnetic tape 103 is unwound from the first tape reel 101, and the tape body between the first tape reel 101 and the second tape reel 102 moves toward the second tape reel 102 and is wound around the second tape reel 102. During this process, the read-write head 202 can write data on the magnetic tape 103 passing through it.

[0069] When reading data, the first tape reel 101 and the second tape reel 102 are driven to rotate by the driving motor 201. At this time, part of the tape is unwound from the first tape reel 101, and the tape between the first tape reel 101 and the second tape reel 102 moves toward the second tape reel 102 and is wound around the second tape reel 102. During this process, the read-write head 202 can read the data on the magnetic tape 103 passing through it.

[0070] In order to increase the storage capacity of the magnetic tape 103, a plurality of tracks 104 (such as 8, 36, 208, etc.) can be arranged on the magnetic tape 103. Accordingly, when reading or writing data, the read / write head 202 is aligned with one track 104, and the driving motor 201 drives the first tape reel 101 and the second tape reel 102 to rotate; when the magnetic tape 103 is completely wound around the second tape reel 102, or is about to be completely wound around the second tape reel 102, the driving motor 201 changes the rotation direction of the first tape reel 101 and the second tape reel 102, so that the magnetic tape 103 on the second tape reel 102 is gradually unwound, and the magnetic tape 103 is gradually wound around the first tape reel 101. In the above process, the read / write head 202 is aligned with another track 104 to write data to the other track 104 or read data on the other track 104; and this process is repeated until data is written to all tracks 104 or data is read from all tracks 104.

[0071] like Figure 2 As shown, Figure 2 In the figure, only the number of tracks 104 on the magnetic tape 103 is 8 for illustration. Each track 104 includes 8 logic blocks. Each logic block corresponds to a track 104 of a certain length, and data is stored in the logic block. When reading or writing data, the read / write head 202 can accurately determine the position (addressing) of the logic block by reading the data on the tracks 104 between adjacent logic blocks, so as to write data into a specific logic block or read data in a specific logic block.

[0072] In the above-mentioned related technologies, when reading and writing data, it is necessary to drive the first tape reel 101 and the second tape reel 102 to rotate so that the tape body at a specific position can be unwound and moved between the first tape reel 101 and the second tape reel 102, resulting in a large delay in data reading and writing of the tape storage.

[0073] The embodiment of the present application provides an electronic device, which may include a computer, a mobile phone, a mobile hard disk, a database, or other device capable of storing data. Accordingly, the electronic device may include a controller and a storage system, and the controller is used to control the storage system to read and write data. Taking the electronic device as a computer as an example, the controller may include a central processing unit of the computer, and the storage system may include a memory or an external memory of the computer, and the storage system may be controlled by the controller to read and write data. Among them, the memory may include a random read-write memory (RAM) and a read-only memory (ROM), and the external memory may include a hard disk.

[0074] In the above implementation, the storage system is used to read and write data, and the corresponding storage system may include a hard disk, a random read / write memory (RAM), a read-only memory (ROM), etc. The storage system includes a read / write device and a storage device, and the storage device may be a tape storage device. The corresponding read / write device may include a first magnetic head, and data on the tape may be read or written to the tape through the first magnetic head.

[0075] Please refer to Figure 3 The storage device provided in the embodiment of the present application includes a first storage tape 10, the first storage tape 10 is in a ring shape, and the first storage tape 10 is used to store data. Exemplarily, the first storage tape 10 may include a first tape base 110, the first tape base 110 is in a ring shape, and the axis of the first tape base 110 ( Figure 3 The dotted line in the figure) is arranged colinearly with the axis of the first storage belt 10.

[0076] It can be understood that, in the embodiment of the present application, collinearity means that two straight lines are located on the same straight line, or there is a small distance between the two straight lines (such as not more than 1 mm, etc.).

[0077] In some embodiments, the first storage tape 10 further includes a first outer magnetic track 111, which is disposed on the outer wall of the first tape base 110, and the outer wall of the first tape base 110 is the side wall of the first tape base 110 away from the axis of the first tape base 110; the first outer magnetic track 111 is disposed around the axis of the first tape base 110. The first outer magnetic track 111 is used to store data; illustratively, the material of the first outer magnetic track 111 may include magnetic materials such as iron oxide and chromium dioxide. The first tape base 110 serves as a carrier of the first outer magnetic track 111, and the material of the first tape base 110 may include plastic, polyester, etc.

[0078] In some embodiments, the read / write device 30 may include a first magnetic head 320 and a drive device 310, and a coil may be provided on the first magnetic head 320. When data is written, the first storage tape 10 is driven to rotate around its axis by the drive device 310. The read / write device 30 may also include a magnetic head drive device (such as an electric push rod, an electromagnet, etc.), and the magnetic head drive device may bring the first magnetic head 320 close to the first storage tape 10, and at the same time transmit a pulse current to the coil, so that a magnetic field is generated near the coil, and then the first outer magnetic track 111 close to the first magnetic head 320 is magnetized to the same magnetic property. Exemplarily, the state of the first preset polarity formed by the magnetization of the first outer magnetic track 111 when the coil is passed through a forward current can be set as the write data "1", and correspondingly, the state of the second preset polarity formed by the magnetization of the first outer magnetic track 111 when the coil is passed through a reverse current is set as the write data "0", and the first preset polarity is opposite to the second preset polarity. It is understandable that, while transmitting the pulse current to the coil, the driving device 310 drives the first storage tape 10 to rotate, so that each data can be written on the first outer track 111 in sequence.

[0079] When reading data, the first magnetic head 320 is brought close to the first storage tape 10. Since the first outer magnetic track 111 is magnetized when writing data, the coil can generate an induced current under the action of the magnetic field on the first outer magnetic track 111. The data can be read by receiving the induced current. It can be understood that when the first magnetic head 320 is close to the first storage tape 10, the first storage tape 10 is driven to rotate by the driving device 310, and the data on the first outer magnetic track 111 can be read in sequence.

[0080] In some implementations, the first outer magnetic track 111 may be arranged in a circular ring around the axis of the first tape base 110. Figure 4 As shown), a plurality of first outer magnetic tracks 111 are arranged at intervals along the axial direction of the first tape base 110; in this arrangement, each first outer magnetic track 111 can store data, thereby increasing the capacity of the storage device.

[0081] In other implementations, the first outer magnetic track 111 may also be arranged in a spiral shape around the axis of the first tape base 110. The first outer magnetic track 111 arranged in a spiral shape is relatively long, which can increase the capacity of the storage device. It is understandable that the first outer magnetic track 111 is arranged in a spiral shape. When reading or writing data, while driving the first storage tape 10 to rotate, the first magnetic head 320 needs to be driven to move in a direction parallel to the axis of the first storage tape 10, so that the first magnetic head 320 can always be aligned with the first outer magnetic track 111.

[0082] In the above implementation, there may be multiple first outer tracks 111, which are spaced apart along an axial direction parallel to the first tape base 110. Each first outer track 111 can store data, which can further increase the capacity of the storage device.

[0083] Please refer to Figure 5 In other embodiments, the first storage tape 10 includes a first inner magnetic track 112 disposed on the inner wall of the first tape base 110, wherein the inner wall of the first tape base 110 is a side wall of the first tape base 110 close to the axis of the first tape base 110. The first inner magnetic track 112 is disposed around the axis of the first tape base 110, and illustratively, the material of the first inner magnetic track 112 may include magnetic materials such as iron oxide and chromium dioxide.

[0084] Accordingly, the read / write device 30 may include a second magnetic head 330. When the second magnetic head 330 is reading or writing data, the second magnetic head 330 may be driven by a magnetic flux driving device to extend into the annular space surrounded by the first tape base 110, so that the second magnetic head 330 may be close to the first inner magnetic track 112 for data reading. The process of the second magnetic head 330 reading and writing data is similar to that of the first magnetic head 320, and will not be repeated here.

[0085] The first inner magnetic track 112 may be arranged in a circular ring around the axis of the first tape base 110. Alternatively, the first inner magnetic track 112 may be arranged in a spiral shape around the axis of the first tape base 110. The first inner magnetic track 112 arranged in a spiral shape is relatively long, which may increase the capacity of the storage device. It is understood that the first inner magnetic track 112 is arranged in a spiral shape. When reading or writing data, while driving the first storage tape 10 to rotate, the second magnetic head 330 needs to be driven to move in a direction parallel to the axis of the first storage tape 10, so that the first magnetic head 320 can always be aligned with the first inner magnetic track 112.

[0086] In the above implementation, there may be multiple first inner magnetic tracks 112, which are spaced apart along an axial direction parallel to the first tape base 110. Each first inner magnetic track 112 can store data, which can further increase the capacity of the storage device.

[0087] Please refer to Figure 6In some embodiments, the first storage tape 10 includes a first outer magnetic track 111 and a first inner magnetic track 112. The first outer magnetic track 111 is arranged on the outer wall of the first tape base 110, and the first inner magnetic track 112 is arranged on the inner wall of the first tape base 110. With such an arrangement, both the first outer magnetic track 111 and the first inner magnetic track 112 can store data, further improving the capacity of the storage device. Accordingly, the read-write device 30 may include a first magnetic head 320 and a second magnetic head 330. The first magnetic head 320 is used to read and write data on the first outer magnetic track 111, and the second magnetic head 330 is used to read and write data on the first inner magnetic track 112.

[0088] It can be understood that the first head 320 and the second head 330 can work simultaneously, that is, at the same time, the first outer track 111 and the first inner track 112 can write data or read data simultaneously, which can improve the data writing and reading rates; of course, the first head 320 and the second head 330 can also work at different times, that is, when the first head 320 is working, the second head 330 is not working, or when the second head 330 is working, the first head 320 is not working, so as to avoid mutual interference between the first head 320 and the second head 330.

[0089] Continue to refer to Figure 3 In the embodiment of the present application, the storage device further includes a second storage tape 20, the second storage tape 20 is annular, and the axis of the second storage tape 20 is collinear with the axis of the first storage tape 10. The second storage tape 20 is also used for storing data. Exemplarily, the second storage tape 20 may include a second tape base 210, the second tape base 210 is annular, and the axis of the second tape base 210 is collinear with the axis of the first storage tape 10.

[0090] In some embodiments, the second storage tape 20 further includes a second outer magnetic track 211 disposed on the outer wall of the second tape base 210, and the second outer magnetic track 211 is disposed around the axis of the second tape base 210. The second outer magnetic track 211 is used to store data; illustratively, the material of the second outer magnetic track 211 may include magnetic materials such as iron oxide and chromium dioxide. The second tape base 210 serves as a carrier of the second outer magnetic track 211, and the material of the second tape base 210 may include plastic, polyester, etc.

[0091] When writing data, the second storage belt 20 is driven to rotate around its axis by the driving device 310, and the first magnetic head 320 is brought close to the second storage belt 20 by the magnetic head driving device. At the same time, a pulse current is transmitted to the coil so that a magnetic field is generated near the coil, and the second outer magnetic track 211 close to the first magnetic head 320 is magnetized to the same magnetic property. Exemplarily, the state of the third preset polarity formed by the magnetization of the second outer magnetic track 211 when the forward current is passed through the coil can be set as the write data "1", and correspondingly, the state of the fourth preset polarity formed by the magnetization of the second outer magnetic track 211 when the reverse current is passed through the coil is set as the write data "0", and the third preset polarity is opposite to the fourth preset polarity. It can be understood that while transmitting a pulse current to the coil, the second storage belt 20 is driven to rotate, and each data can be written on the second outer magnetic track 211 in sequence.

[0092] When reading data, the first magnetic head 320 is brought close to the second storage tape 20 by the magnetic head driving device. Since the second outer magnetic track 211 is magnetized when writing data, the coil can generate an induced current under the action of the magnetic field on the second outer magnetic track 211. The data can be read by receiving the induced current. It can be understood that when the first magnetic head 320 is close to the second storage tape 20, the second storage tape 20 is driven to rotate by the driving device 301, and the data on the second outer magnetic track 211 can be read in sequence.

[0093] In some implementations, the second outer magnetic track 211 may be arranged in a circular ring around the axis of the second tape base 210. Exemplarily, there may be multiple second outer magnetic tracks 211, and the multiple second outer magnetic tracks 211 are arranged at intervals along the axis direction of the second tape base 210; in this way, each second outer magnetic track 211 can store data, thereby increasing the capacity of the storage device.

[0094] In other implementations, the second outer magnetic track 211 may also be arranged in a spiral shape around the axis of the second tape base 210. The second outer magnetic track 211 arranged in a spiral shape is relatively long, which can increase the capacity of the storage device. It is understandable that the second outer magnetic track 211 is arranged in a spiral shape. When reading or writing data, while driving the second storage tape 20 to rotate, the first magnetic head 320 needs to be driven to move along the axis direction of the second storage tape 20, so that the first magnetic head 320 can always be aligned with the second outer magnetic track 211.

[0095] Please refer to Figure 4 In the above implementation, there may be multiple second outer tracks 211, and the multiple second outer tracks 211 are spaced apart along an axial direction parallel to the second tape base 210. Each second outer track 211 can store data, which can further increase the capacity of the storage device.

[0096] Please refer to Figure 5In other embodiments, the second storage tape 20 includes a second inner magnetic track 212 disposed on the inner wall of the second tape base 210, wherein the inner wall of the second tape base 210 is a side wall of the second tape base 210 close to the axis of the second tape base 210. The second inner magnetic track 212 is disposed around the axis of the second tape base 210, and illustratively, the material of the second inner magnetic track 212 may include magnetic materials such as iron oxide and chromium dioxide.

[0097] Accordingly, the read / write device 30 may include a second magnetic head 330, and the second magnetic head 330 may extend into the space surrounded by the second tape base 210 when reading or writing data, so that the second magnetic head 330 may be close to the second inner magnetic track 212 for data reading. The process of the second magnetic head 330 reading and writing data is similar to that of the first magnetic head 320, and will not be repeated here.

[0098] The second inner magnetic track 212 may be arranged in a circular ring around the axis of the second tape base 210. Alternatively, the second inner magnetic track 212 may be arranged in a spiral shape around the axis of the second tape base 210. The second inner magnetic track 212 arranged in a spiral shape is relatively long, which may increase the capacity of the storage device. It is understood that the second inner magnetic track 212 is arranged in a spiral shape. When reading or writing data, while driving the second storage tape 20 to rotate, the second magnetic head 330 needs to be driven to move in a direction parallel to the axis of the second storage tape 20, so that the second magnetic head 330 can always be aligned with the second inner magnetic track 212.

[0099] In the above implementation, there may be multiple second inner magnetic tracks 212, which are spaced apart along an axial direction parallel to the second tape base 210. Each second inner magnetic track 212 can store data, which can further increase the capacity of the storage device.

[0100] Please refer to Figure 6 In some embodiments, the second storage tape 20 includes a second outer magnetic track 211 and a second inner magnetic track 212, wherein the second outer magnetic track 211 is disposed on the outer wall of the second tape base 210, and the second inner magnetic track 212 is disposed on the inner wall of the second tape base 210. With such an arrangement, both the second outer magnetic track 211 and the second inner magnetic track 212 can store data, further increasing the capacity of the storage device. Accordingly, the read / write device 30 may include a first magnetic head 320 and a second magnetic head 330, wherein the first magnetic head 320 is used to read and write data on the second outer magnetic track 211, and the second magnetic head 330 is used to read and write data on the second inner magnetic track 212.

[0101] It is understandable that the first magnetic head 320 and the second magnetic head 330 can work simultaneously, that is, at the same time, the second outer track 211 and the second inner track 212 can simultaneously write or read data, which can improve the data writing and reading rate.

[0102] Please refer to Figure 7 In the implementation mode where the first storage tape 10 includes the first outer magnetic track 111 and the first inner magnetic track 112, the first outer magnetic track 111 and the first inner magnetic track 112 can both be multiple, so as to further increase the capacity of the storage device. Similarly, in the implementation mode where the second storage tape 20 includes the second outer magnetic track 211 and the second inner magnetic track 212, the second outer magnetic track 211 and the second inner magnetic track 212 can both be multiple, so as to further increase the capacity of the storage device.

[0103] In the present application embodiment, Figure 3 As shown, the first storage tape 10 and the second storage tape 20 are configured to be spaced apart along the axis in the data reading and writing state, that is, the first storage tape 10 and the second storage tape 20 are away from each other along the axis direction, so that the first magnetic head 320 is aligned with the first storage tape 10 or the second storage tape 20. Figure 8 As shown, in the non-data writing state, the first storage tape 10 and the second storage tape 20 are configured to be close to each other along the axial direction to reduce the space occupied by the first storage tape 10 and the second storage tape 20. The data reading and writing state is a state in which data is read and written, and the non-data reading and writing state is a state in which data is not read and written (such as a non-working state). Through the above configuration, when reading data, the first magnetic head 320 can be aligned with the first storage tape 10 or the second storage tape 20 to read the data on the first storage tape 10 or the second storage tape 20, and the position of the data can be accurately located, reducing the delay when reading data; when writing data, the first magnetic head 320 can be aligned with the first storage tape 10 or the second storage tape 20 to write data to the first storage tape 10 or the second storage tape 20; the position of the written data can be accurately located, reducing the delay of writing data, thereby improving the performance of the device during storage.

[0104] In addition, the drive device 30 drives the annular first storage belt 10 and the second storage belt 20 to rotate around the axis of the first storage belt 10, and the magnetic tape 103 is wound around the first tape reel 101 and the second tape reel 102 (such as Figure 1 As shown in the figure, during the process of data reading and writing, the first storage tape 10 and the second storage tape 20 will not be pulled, thereby increasing the service life of the first storage tape 10 and the second storage tape 20. Due to the limitation of the strength of the magnetic tape 103, the rotation speed of the first tape reel 101 and the second tape reel 102 is relatively slow, and the magnetic tape 103 needs to be unwound during data reading and writing, which results in a relatively large delay; in the above-mentioned embodiment, the tension on the first storage tape 10 and the second storage tape 20 is relatively small, and the rotation speed of the first storage tape 10 and the second storage tape 20 can be set relatively fast to further reduce the delay during data reading and writing. Figure 1In the related technology shown, when writing or reading data, the first tape reel 101 and the second tape reel 102 need to be reciprocated in forward and reverse directions. The switching process between forward and reverse directions is relatively long, resulting in a large delay. In the above embodiment, the first storage tape 10 and the second storage tape 20 are ring-shaped, and there is no need to change the rotation direction of the first storage tape 10 and the second storage tape 20, which can further reduce the delay in the data reading and writing process.

[0105] Please refer to Fig. 9 In an achievable manner, the storage device further comprises a first support wheel 113 and a second support wheel 213, the first storage belt 10 is supported on the first support wheel 113, and the second storage belt 20 is supported on the second support wheel 213. The first support wheel 113 can drive the first storage belt 10 to move along the axis direction, and can also drive the first storage belt 10 to rotate; similarly, the second support wheel 213 can drive the second storage belt 20 to move along the axis direction, and can also drive the second storage belt 20 to rotate. The above arrangement facilitates the fixing of the first storage belt 10 and the second storage belt 20. In addition, the driving device drives the first storage belt 10 to rotate through the first support wheel 113, and the driving device drives the second storage belt 20 to rotate through the second support wheel 213, which can avoid the driving device from directly contacting the first storage belt 10 and the second storage belt 20, thereby avoiding damage to the first storage belt 10 and the second storage belt 20, and improving the service life of the storage device.

[0106] Exemplarily, the first support wheel 113 may be supported on the bottom end of the first tape base 110 in the axial direction. Of course, the first support wheel 113 may also be connected to the outer wall or inner wall of the first tape base 110. The embodiment of the present application does not limit the connection relationship between the first support wheel 113 and the first tape base 110, as long as the first support wheel 113 can drive the first tape base 110 to rotate and move along the axial direction. The connection between the second support wheel 213 and the second tape base 210 is similar to the connection between the first support wheel 113 and the first tape base 110, and will not be repeated here.

[0107] In the above implementation, the read-write device 30 may further include a first sleeve 311 and a second sleeve 312, the second sleeve 312 being inserted into the first sleeve 311, the first sleeve 311 being used to connect to the first support wheel 113 in the data read-write state, and the second sleeve 312 being used to connect to the second support wheel 213 in the data read-write state; the driving device may include a lifting device, the lifting device being connected to the first sleeve 311 and the second sleeve 312, the lifting device being used to drive the first sleeve 311 and the second sleeve 312 to move relative to each other in a direction parallel to the axis in the data read-write state, and then drive the first support wheel 113 and the second support wheel 213 to move relative to each other in a direction parallel to the axis, so as to drive the first storage belt 10 and the second storage belt 20 to move relative to each other in the axial direction and move away from each other; in the non-read-write state, the lifting device drives the first support wheel 113 and the second support wheel 213 to move relative to each other in a direction parallel to the axis through the first sleeve 311 and the second sleeve 312, so as to drive the first storage belt 10 and the second storage belt 20 to move closer to each other in the axial direction.

[0108] Among them, the lifting device may include a first electric push rod and a second electric push rod, the first electric push rod is rotatably connected to the first sleeve 311, and the first electric push rod is used to drive the first sleeve 311 to move in a direction parallel to the axis, so that the first sleeve 311 can press against the first support wheel 113, and further drive the first support wheel 113 to move in a direction parallel to its axis; the second electric push rod is rotatably connected to the second sleeve 312, and the second electric push rod is used to drive the second sleeve 312 to move in a direction parallel to the axis, so that the second sleeve 312 can press against the second support wheel 213, and further drive the second support wheel 213 to move in a direction parallel to its axis. The driving device may also include a first motor and a second motor. The first motor is transmission-connected to the first sleeve 311 to drive the first sleeve 311 to rotate, and then when the first sleeve 311 contacts the first support wheel 113, the first support wheel 113 is driven to rotate, thereby driving the first storage belt 10 to rotate; the second motor is transmission-connected to the second sleeve 312 to drive the second sleeve 312 to rotate, and then when the second sleeve 312 contacts the second support wheel 213, the second support wheel 213 is driven to rotate, thereby driving the second storage belt 20 to rotate.

[0109] It is understandable that the first sleeve 311 is detachably connected to the first support wheel 113, and the second sleeve 312 is detachably connected to the second support wheel 213. Such a configuration can facilitate the installation and removal between the storage device and the read-write device, that is, the read-write device can be adapted to different storage devices. In addition, the rotation speeds of the first storage belt 10 and the second storage belt 20 can be reasonably controlled according to the actual usage scenario to facilitate the reading and writing of data, that is, the rotation speeds and rotation angles of the first storage belt 10 and the second storage belt 20 can be controlled separately.

[0110] Please refer to Fig.10 In other implementations, the storage device further includes a first magnet 116 and a second magnet 216. The first magnet 116 is disposed on the first storage tape 10. For example, the first magnet 116 can be disposed on the first tape base 110. The second magnet 216 is disposed on the second storage tape 20. For example, the second magnet 216 can be disposed on the second tape base 210. Accordingly, the drive device includes a first drive coil 313 and a second drive coil 314. The first magnet 116 is located in the magnetic field of the first drive coil 313, and the second magnet 216 is located in the magnetic field of the second drive coil 314. The axis of the first storage belt 10 can be perpendicular to the horizontal plane, and the first drive coil 313 and the second drive coil 314 are located at the lower part of the first storage belt 10 and the second storage belt 20; in the data reading and writing state, the first drive coil 313 and the second drive coil 314 are energized, and under the magnetic force of the first drive coil 313, the first magnet 116 drives the first storage belt 10 to move relative to the second storage belt 20 in a direction parallel to the axis; and / or, under the magnetic force of the second drive coil 314, the second magnet 216 drives the second storage belt 20 to move relative to the first storage belt 10 in a direction parallel to the axis, thereby making the first storage belt 10 and the second storage belt 20 spaced apart (away from each other) in a direction parallel to the axis; when the gravity of the first storage belt 10 and the first magnet 116 is equal to the magnetic force exerted on the first magnet 116, the first storage belt 10 stops moving and floats in the air. In the non-data reading and writing state, the first drive coil 313 and the second drive coil 314 are powered off, and under the action of gravity, the first storage belt 10 and the second storage belt 20 are close to each other in a direction parallel to the axis. It can be understood that the distance between the first storage belt 10 and the second storage belt 20 can be adjusted by reasonably setting the current of the first drive coil 313 and the second drive coil 314.

[0111] Through the above arrangement, the driving device 310 can generate magnetic force to drive the first storage belt 10 and the second storage belt 20 to move in a direction parallel to the axis. The driving device 310 does not directly contact the first storage belt 10 and the second storage belt 20, which can avoid damage to the first storage belt 10 and the second storage belt 20, thereby increasing the service life of the storage device. In addition, the driving device 310 does not directly contact the first storage belt 10 and the second storage belt 20, which can also reduce the rotation resistance of the first storage belt 10 and the second storage belt 20.

[0112] In the above implementation, the magnetic field generated by the first drive coil 313 and the second drive coil 314 rotates, which can drive the first storage belt 10 and the second storage belt 20 to rotate while driving the first storage belt 10 and the second storage belt 20 to suspend, which can further avoid damage to the first storage belt 10 and the second storage belt 20, and further improve the service life of the storage device. It can be understood that by controlling the electrical signals input to the first drive coil 313 and the second drive coil 314, the rotation speed and rotation angle of the first storage belt 10 and the second storage belt 20 can be independently controlled.

[0113] In the above implementation, there may be a plurality of first magnets 116, and the plurality of first magnets 116 are arranged at equal central angles around the axis of the first storage belt 10 to ensure that the first storage belt 10 is subjected to uniform force and to prevent the first storage belt 10 from tilting. Similarly, there may be a plurality of second magnets 216, and the plurality of second magnets 216 are arranged at equal circular angles around the axis of the second storage belt 20 to ensure that the second storage belt 20 is subjected to uniform force.

[0114] In some embodiments, the outer diameter of the first storage tape 10 and the outer diameter of the second storage tape 20 may be equal. Accordingly, in the non-reading and writing state, the first storage tape 10 and the second storage tape 20 are close to each other in a direction parallel to the axis of the first storage tape 10. The first storage tape 10 and the second storage tape 20 may also form a cylindrical structure (such as Figure 8 As shown), the space occupied by the first storage belt 10 and the second storage belt 20 can be reduced.

[0115] Continue to refer to Fig. 9 In the implementation mode in which the storage device includes the first support wheel 113 and the second support wheel 213, the first support wheel 113 includes a first wheel body 114 and a first wheel hub 115 connected to the first wheel body 114, and the outer periphery of the first wheel body 114 is connected to the first storage belt 10; the second support wheel 213 includes a second wheel body 214 and a second wheel hub 215 connected to the second wheel body 214, and the outer periphery of the second wheel body 214 is connected to the second storage belt 20, and the outer diameter of the first wheel hub 115 can be greater than the outer diameter of the second wheel hub 215. Accordingly, the first shaft sleeve 311 abuts against the first wheel hub 115, and the second shaft sleeve 312 abuts against the second wheel hub 215.

[0116] Please refer to Fig.11In the above implementation, there may be multiple second storage tapes 20, and the multiple second storage tapes 20 may be arranged in sequence along a direction parallel to the axis of the first storage tape 10. The first storage tape 10 may be located at the bottom of each second storage tape 20. In the data reading and writing state, each second storage tape 20 may move away from the first storage tape 10 to achieve the expansion of each storage tape; it is convenient for the first magnetic head 320 to accurately align with the first storage tape 10 and one of the multiple second storage tapes 20 to reduce the delay of data reading and writing. Fig.12 As shown, in the non-data reading and writing state, each second storage band 20 can move toward the direction close to the first storage band 10 to achieve the contraction of each storage band, thereby reducing the space occupied by each storage band.

[0117] Please refer to Fig.13 , illustratively, the outer diameters of the second hubs 215 corresponding to the second storage belts 20 may be different, and accordingly, the second sleeves 312 are sleeved together and inserted into the first sleeve 311, and each second sleeve 312 abuts against the first second hub 215. The lifting device includes a first electric push rod and a plurality of second electric push rods, the first electric push rod is connected to the first sleeve 311 to drive the first sleeve 311 to move along the axis direction of the first storage belt 10, and each second electric push rod is connected to a second sleeve 312 to drive the second sleeve 312 to move along the axis direction of the first storage belt 10. The driving device may include a first motor and multiple second motors, the first motor is connected to the first sleeve 311 to drive the first sleeve 311 to rotate, and then when the first sleeve 311 contacts the first support wheel 113, the first support wheel 113 is driven to rotate, thereby driving the first storage belt 10 to rotate; each second motor is connected to a second sleeve 312 to drive the corresponding second sleeve 312 to rotate, and then when the second sleeve 312 contacts the second support wheel 213, the second support wheel 213 is driven to rotate, thereby driving the second storage belt 20 to rotate.

[0118] Please refer to Fig.14 In the implementation mode in which the driving device 310 includes the first magnet 116 and the second magnet 216, each second storage belt 20 is provided with a second magnet 216. Correspondingly, the reading and writing device 30 also includes a first driving coil 313 and a plurality of second driving coils 314. The first magnet 116 is located in the magnetic field of the first driving coil 313. The first driving coil 313 can drive the first storage belt 10 to move along its axial direction, and can also drive the first storage belt 10 to rotate; the second magnet 216 on each second storage belt 20 is located in the magnetic field of a second driving coil 314. The second driving coil 314 can drive the corresponding second storage belt 20 to move in a direction parallel to the axis of the first storage belt 10, and can also drive the second storage belt 20 to rotate.

[0119] It can be understood that the first magnet 116 can be connected to the first storage belt 10 through the first connecting part, and the first connecting part can be located on the inner wall of the first storage belt 10; the second magnet 216 is connected to the corresponding second storage belt 20 through the second connecting part, and the second connecting part can be located on the inner wall of the second storage belt 20. Reasonable setting of the dimensions of the first connecting part and the second connecting part along the direction perpendicular to the axis of the first storage belt 10 can make the distances between the first magnet 116 and each second magnet 216 and the axis of the first storage belt 10 unequal.

[0120] Please refer to Fig.15 In some embodiments, the outer diameter of the second storage tape 20 is smaller than the inner diameter of the first storage tape 10, and the second storage tape 20 is further configured to move to the inside of the space surrounded by the first storage tape 10 in a non-data reading and writing state (such as Fig.16 That is, in the non-data reading and writing state, the first storage tape 10 is set outside the second storage tape 20; in the data reading and writing state, the second storage tape 20 moves to the outside of the first storage tape 10 (as shown in FIG. Fig.15 Such arrangement can further reduce the space occupied by the first storage band 10 and the second storage band 20 in the non-data reading and writing state.

[0121] Please refer to Fig.17 In some implementations, there are multiple second storage belts 20. In the data reading and writing state, each second storage belt 20 is arranged at intervals along the axis, and the outer diameters of each second storage belt 20 located on one side of the first storage belt 10 along the axis are different. With this arrangement, multiple second storage belts 20 can all store data, thereby increasing the capacity of the storage device. In addition, the outer diameters of each second storage belt 20 located on one side of the axis of the first storage belt 10 are different, so that in the non-data reading and writing state, each second storage belt 20 can be nested together and all located inside the first storage belt 10 (such as Fig.18 and Fig.19 As shown), the space occupied by the first storage belt 10 and each second storage belt 20 can be reduced.

[0122] It can be understood that the outer diameters of each second storage tape 20 are not the same. During the process of reading and writing data, the first magnetic head and the second magnetic head can be driven by a head driving device to move in a direction parallel to the axis of the first storage tape 10, while driving the first magnetic head and the second magnetic head to move in a direction perpendicular to the axis of the first storage tape to approach the first storage tape 10 or the second storage tape 20.

[0123] In the above implementation, in the implementation in which the storage device includes a first support wheel 113 and a second support wheel 213, there are multiple second support wheels 213, the first support wheel 113 includes a first wheel body 114 and a first hub 115 connected to the first wheel body 114, and the outer periphery of the first wheel body 114 is connected to the first storage belt 10; the second support wheel 213 includes a second wheel body 214 and a second hub 215 connected to the second wheel body 214, and the outer periphery of the second wheel body 214 is connected to the second storage belt 20, and the outer diameter of the first hub 115 can be larger than the outer diameter of the second hub 215. The outer diameters of the second hubs 215 corresponding to the second storage belts 20 may be different. Accordingly, the first sleeve 311 abuts against the first hub 115. There are multiple second sleeves 312. The second sleeves 312 are sleeved together and inserted into the first sleeve 311. Each second sleeve 312 abuts against the first second hub 215. Each second sleeve 312 abuts against one second hub 215. The lifting device includes a first electric push rod and multiple second electric push rods. The first electric push rod is connected to the first sleeve 311 to drive the first sleeve 311 to move along the axis direction of the first storage belt 10. Each second electric push rod is connected to a second sleeve 312 to drive the second sleeve 312 to move along the axis direction of the first storage belt 10. The driving device may include a first motor and multiple second motors. The first motor is transmission connected to the first sleeve 311 to drive the first sleeve 311 to rotate, and then when the first sleeve 311 contacts the first support wheel 113, the first support wheel 113 is driven to rotate, thereby driving the first storage belt 10 to rotate; each second motor is transmission connected to a second sleeve 312 to drive the corresponding second sleeve 312 to rotate, and then when the second sleeve 312 contacts the second support wheel 213, the second support wheel 213 is driven to rotate, thereby driving the second storage belt 20 to rotate.

[0124] In the implementation mode where the drive device 310 includes the first magnet 116 and the second magnet 216, each second storage belt 20 is provided with the second magnet 216. Accordingly, the read-write device 30 also includes a first drive coil 313 and a plurality of second drive coils 314. The first magnet 116 is located in the magnetic field of the first drive coil 313. The first drive coil 313 can drive the first storage belt 10 to move along its axial direction and also drive the first storage belt 10 to rotate. The second magnet 216 on each second storage belt 20 is located in the magnetic field of a second drive coil 314. The second drive coil 314 can drive the corresponding second storage belt 20 to move in a direction parallel to the axis of the first storage belt 10 and also drive the second storage belt 20 to rotate. It can be understood that the distances between the first magnet 116 and each second magnet 216 and the axis of the first storage belt 10 are not equal to avoid interference between the magnets.

[0125] Please refer to Fig. 20 and Fig.21 In some implementations, in the data reading and writing state, the outer diameter of each second storage belt 20 gradually decreases in the direction away from the first storage belt 10. In the data reading and writing state, each second storage belt 20 moves in the direction away from the first storage belt 10. At this time, the first storage belt 10 and each second storage belt 20 can form a trumpet shape. Through the above arrangement, when each second storage belt 20 moves in the direction close to the first storage belt 10 and gradually enters the first storage belt 10, since the outer diameter of each second storage belt 20 gradually decreases, interference between the second storage belts 20 can be avoided. Of course, if Fig.17 As shown, in the data reading and writing state, the outer diameter of each second storage tape 20 is not related to the distance between the second storage tape 20 and the first storage tape 10. Accordingly, in the data reading and writing state, the first storage tape 10 and each second storage tape 20 form a columnar structure, and the cylindrical surface of the structure is uneven to form an irregular shape.

[0126] Please refer to Fig. 22 and Fig.23 In other implementations, in the data reading and writing state, the first storage tape 10 has a plurality of second storage tapes 20 on both sides along its axial direction, and the outer diameters of the second storage tapes 20 located on one side of the first storage tape 10 and away from the first storage tape 10 gradually decrease; similarly, the outer diameters of the second storage tapes 20 located on the other side of the first storage tape 10 and away from the first storage tape 10 also gradually decrease; at this time, the first magnetic head 320 can be aligned with the first storage tape 10 and any one of the plurality of second storage tapes 20 to accurately locate the position of data reading and writing (such as Fig.24 In a non-data reading and writing state, the second storage tapes 20 located on one side of the first storage tape 10 are sequentially nested together and at least partially contracted in the first storage tape 10, and the second storage tapes 20 located on the other side of the first storage tape 10 are sequentially nested together and at least partially contracted in the first storage tape 10, so as to reduce the space occupied by each storage tape.

[0127] In some implementations, in the data reading and writing state, the outer diameters of the two second storage belts 20 that are at equal distances from the first storage belt 10 may be equal, and in this case, the first storage belt 10 and each second storage belt 20 may roughly form a sphere (e.g. Fig.23 as shown) or oval (as Fig. 22The spherical shape means that the end of each second storage belt 20 close to the first storage belt is located on the same spherical surface, and the elliptical shape means that the end of each second storage belt 20 close to the first storage belt is on the same ellipsoidal surface. In the non-data reading and writing state, each second storage belt 20 located on one side of the first storage belt 10 can be retracted into the first storage belt 10, and each second storage belt 20 located on the other side of the first storage belt 10 can be nested together in sequence and located outside the first storage belt 10.

[0128] In other implementations, the outer diameters of the two second storage belts 20 that are at equal distances from the first storage belt 10 may also be different, and accordingly, the outer diameters of the second storage belts 20 are all different. With such an arrangement, in a non-data reading and writing state, the second storage belts 20 can be nested together and located inside the first storage belt 10, so as to further reduce the space occupied by the first storage belt 10 and the second storage belts 20.

[0129] In the above implementation, in the data reading and writing state, the first storage belt 10 has multiple second storage belts 20 on both sides along its axial direction, and are located on one side of the first storage belt 10, and the outer diameter of each second storage belt 20 gradually decreases in the direction away from the first storage belt 10; accordingly, the first shaft sleeve 311 can be sleeved outside the second shaft sleeve 312 corresponding to each second storage belt 20 on one side of the first storage belt 10, and the second shaft sleeve 312 corresponding to each second storage belt 20 on the other side of the first shaft sleeve 311 is sleeved outside the first shaft sleeve 311.

[0130] In the above implementation, please refer to Fig.25 The drive device 310 is detachably connected to the first storage tape 10 and the second storage tape 20, so that the read-write device can adapt to different storage devices. Exemplarily, when replacing, the previous storage device is first taken out, and then the latter storage device is installed on the read-write device, and the drive device 310 is connected to the first storage tape 10 and the second storage tape 20 in the latter storage device, and the storage device can be replaced.

[0131] It can be understood that in the implementation mode where there are multiple second storage tapes 20, during the data reading and writing process, each second storage tape 20 can be moved in the direction away from the first storage tape 10 to achieve expansion; of course, only the second storage tape 20 that needs to read or write data can be moved in the direction away from the first storage tape 10 to facilitate data reading and writing.

[0132] Please refer to Fig.26 The embodiment of the present application also provides a storage device, a first storage tape 10, the first storage tape 10 is spirally arranged around its axis, and the first storage tape 10 is used to store data; the first storage tape 10 may include a first tape base, and the first tape base is spirally arranged around the axis.

[0133] In the embodiment of the present application, the spiral shape extends around the axis and also extends in a direction parallel to the axis.

[0134] In some embodiments, the first storage tape 10 further includes a first outer magnetic track located on the outer wall of the first tape base, and the first outer magnetic track is arranged in a spiral shape around the axis. The first outer magnetic track is used to store data; illustratively, the material of the first outer magnetic track may include magnetic materials such as iron oxide and chromium dioxide. The first tape base serves as a carrier of the first outer magnetic track, and the material of the first tape base may include plastic, polyester, etc.

[0135] In other embodiments, the first storage tape 10 further includes a first inner magnetic track located on the inner wall of the first tape base, and the first inner magnetic track is arranged in a spiral shape around the axis. The first inner magnetic track is used to store data; illustratively, the material of the first inner magnetic track may include magnetic materials such as iron oxide and chromium dioxide.

[0136] In some embodiments, a first inner magnetic track is disposed on the inner wall of the first tape base, and a first outer magnetic track is disposed on the outer wall of the first tape base. Both the first inner magnetic track and the first outer magnetic track can store data, thereby increasing the capacity of the storage device.

[0137] In the above implementation, there can be multiple first inner magnetic tracks and multiple first outer magnetic tracks, and the multiple first inner magnetic tracks are spaced apart in a direction parallel to the axis, and the multiple first outer magnetic tracks are spaced apart in a direction parallel to the axis. Such a setting can further increase the capacity of the storage device.

[0138] In the embodiment of the present application, the first storage belt 10 is configured to extend in the axial direction when the storage device is in a data reading and writing state, and to contract in the axial direction when the storage device is in a non-data reading and writing state. That is, when reading and writing data, the first storage belt 10 extends in the axial direction (the distance between adjacent turns of the first storage belt 10 increases), and in a non-data reading and writing state (such as when data is not read and written), the first storage belt 10 contracts in the axial direction (the distance between adjacent turns of the first storage belt 10 decreases) to reduce the space occupied by the first storage belt 10. Among them, the first belt base needs to have a certain elasticity to avoid damage to the first storage belt 10 when extending and contracting.

[0139] It is understandable that the read-write device may include a first magnetic head and a magnetic head driving device. When writing data, the magnetic head driving device drives the first magnetic head close to the first storage tape 10, and the coil on the first magnetic head generates a magnetic field, thereby magnetizing the first outer magnetic track to write data; when reading data, the first magnetic head is close to the first storage tape 10. Since the first outer magnetic track storing data is magnetized, the coil can generate an induced current under the action of the magnetic field on the first outer magnetic track, and the data can be read by receiving the induced current. Exemplarily, the read-write device may include a driving device, and the driving device can drive the first storage tape 10 to rotate around the axis when reading and writing data. At the same time, the first magnetic head can be driven to move in the axial direction by other devices, so that the first magnetic head is always aligned with the first storage tape 10, and then the data on the first storage tape 10 is read in sequence, or the data is written in sequence on the first storage tape 10.

[0140] In an implementation in which a first inner magnetic track and a first outer magnetic track are arranged on a first tape base, the read-write device may include a first magnetic head located on the outside of the first tape base and a second magnetic head located on the inside of the first tape base, the first magnetic head can read data on the first outer magnetic track, and the first magnetic head can also write data on the first outer magnetic track; correspondingly, the second magnetic head can read data on the second outer magnetic track, and the second magnetic head can also write data on the second outer magnetic track.

[0141] In some implementations, the read / write device further includes a drive device, the drive device is connected to the first storage belt 10, and the drive device is configured to drive the first storage belt to extend along the axis direction when the storage device is in a data read / write state, and the drive device is further configured to drive the first storage belt to contract along the axis direction when the storage device is in a non-data read / write state. Exemplarily, the drive device includes a first electric push rod and a first motor, one end of the first electric push rod is rotatable with the first end (such as Fig.26 The main shaft of the first motor is connected to the second end of the first storage belt 10 (such as Fig.26 In the data reading and writing state, the first electric push rod can drive the first end to move away from the second end to extend the first storage belt 10, and the first motor can drive the first storage belt 10 to rotate around the axis to facilitate data reading and writing. In the non-data reading and writing state, the first electric push rod can drive the first end to move toward the second end to retract the first storage belt 10.

[0142] In other implementations, the drive device may include a first magnet and a first coil, wherein the first magnet is coupled to a first end of a first storage tape (eg, Fig.26The first magnet is located in the magnetic field of the first coil. In the data reading and writing state, power can be supplied to the first coil to drive the first end of the first storage tape 10 away from the second end (such as Fig.26 The first storage belt 10 is moved in the direction of the bottom end of the first coil to achieve the extension of the first storage belt 10; in the non-data reading and writing state, the current direction of the first coil can be adjusted to change the magnetic force exerted on the first magnet, thereby causing the first end of the first storage belt to move toward the second end to achieve the contraction of the first storage belt. It can be understood that by controlling the current direction of the first coil and changing the magnetic force exerted on the first magnet, the first storage belt 10 can be driven to rotate by the first magnet after the first end of the first storage belt 10 is driven to move in the direction away from the second end.

[0143] In the storage device provided by the embodiment of the present application, the first storage tape 10 is arranged in a spiral shape around an axis, and the first storage tape 10 is configured to extend along the axial direction in a data reading and writing state, and to contract along the axial direction in a non-data reading and writing state; when reading data, the first storage tape 10 is extended, so that the first magnetic head can accurately locate a certain turn of the first storage tape 10, that is, the position of the data can be accurately located, thereby reducing the delay in reading data; when writing data, the first magnetic head can accurately locate a certain turn of the first storage tape 10, so that the position of the write data can be accurately located, thereby reducing the delay in writing data, thereby improving the performance of the device during storage.

[0144] In addition, the driving device drives the spiral first storage belt 10 to rotate around the axis of the first storage belt 10, and the magnetic tape 103 is wound around the first tape reel 101 and the second tape reel 102 (such as Figure 1 As shown in the figure, during the process of reading and writing data, the first storage tape 10 will not be pulled, thereby increasing the service life of the first storage tape 10. Due to the limitation of the strength of the magnetic tape 103, the rotation speeds of the first tape reel 101 and the second tape reel 102 are relatively slow, and the magnetic tape 103 needs to be unwound during data reading and writing, which results in a relatively large delay. In the above embodiment, the tension on the first storage tape 10 is relatively small, and the rotation speeds of the first storage tape 10 and the second storage tape 20 can be set relatively fast to further reduce the delay during data reading and writing. Please refer to Fig. 27In some embodiments, the storage device further includes a second storage tape 20, which is arranged in a spiral shape around the axis and is used to store data; the outer diameter of the second storage tape 20 is smaller than the inner diameter of the first storage tape 10; the second storage tape 20 is configured to extend along the axial direction in the data reading and writing state, and extend from the inside of the first storage tape 10; the second storage tape 20 is also configured to shrink along the axial direction in the non-data reading and writing state, and shrink into the first storage tape 10. Through the above arrangement, the first storage tape 10 and the second storage tape 20 can both be used to store data, thereby increasing the capacity of the storage device; in addition, in the non-data reading and writing state, the second storage tape 20 shrinks into the first storage tape 10, which can reduce the space occupied by the first storage tape 10 and the second storage tape 20.

[0145] In some implementations, the second storage tape includes a second tape base and a second outer magnetic track disposed on an outer wall of the second tape base, the second tape base is disposed in a spiral shape around an axis, and the second outer magnetic track is disposed in a spiral shape around the axis. The second outer magnetic track is used to store data; illustratively, the material of the second outer magnetic track may include magnetic materials such as iron oxide and chromium dioxide. The second tape base serves as a carrier of the second outer magnetic track, and the material of the second tape base may include plastic, polyester, etc.

[0146] In other embodiments, the second storage tape includes a second tape base and a second magnetic track disposed on the inner wall of the second tape base, the second tape base is disposed in a spiral shape around the axis, and the second inner magnetic track is disposed in a spiral shape around the axis. The second inner magnetic track is used to store data; illustratively, the material of the second inner magnetic track may include magnetic materials such as iron oxide and chromium dioxide.

[0147] In some implementations, a second inner magnetic track is disposed on the inner wall of the second tape base, and a second outer magnetic track is disposed on the outer wall of the second tape base. Both the second inner magnetic track and the second outer magnetic track can store data, thereby increasing the capacity of the storage device.

[0148] In the above implementation, there can be multiple second inner magnetic tracks and multiple second outer magnetic tracks, and the multiple second inner magnetic tracks are spaced apart in a direction parallel to the axis, and the multiple second outer magnetic tracks are spaced apart in a direction parallel to the axis. Such a configuration can further increase the capacity of the storage device.

[0149] The read-write device may include a first magnetic head located on the outside of the first storage tape 10 and a second magnetic head located on the inside of the second storage tape 20. The first magnetic head can read data on the first outer track and the second outer track, and the first magnetic head can also write data on the first outer track and the second outer track; correspondingly, the second magnetic head can read data on the first inner track and the second inner track, and the second magnetic head can also write data on the first inner track and the second inner track.

[0150] In an implementation in which the storage device includes a second storage belt 20, the drive device includes a second electric push rod and a second motor, one end of the second electric push rod being rotatable with a first end of the second storage belt 20 (such as Fig. 27 The main shaft of the second motor is connected to the second end of the second storage belt 20 (such as Fig. 27 The second motor is connected to the bottom end of the storage belt 10. In the data reading and writing state, the second electric push rod can drive the first end to move away from the second end to achieve the extension of the second storage belt 20, and can drive the second storage belt 20 to extend from the first storage belt 10; the second motor can drive the second storage belt 20 to rotate around the axis to facilitate data reading and writing. In the non-data reading and writing state, the second electric push rod can drive the first end to move toward the second end to achieve the contraction of the second storage belt 20, and can cause the second storage belt 20 to contract into the first storage belt 10.

[0151] In other implementations, the drive device may include a second magnet and a second coil, the second magnet and the first end of the second storage tape 20 (eg Fig. 27 The second magnet is located in the magnetic field of the second coil. In the data reading and writing state, the second coil can be powered to drive the first end of the second storage tape 20 away from the second end (such as Fig. 27 The second storage belt 20 can be moved in the direction of the bottom end in the middle of the first storage belt 10 to extend the second storage belt 20, and the second storage belt 20 can be driven to extend from the first storage belt 10; in the non-data reading and writing state, the current direction of the second coil can be adjusted to change the magnetic force exerted on the second magnet, so that the first end of the second storage belt 20 can be moved in the direction close to the second end to achieve the contraction of the second storage belt, and the second storage belt 20 can be contracted into the first storage belt 10. It can be understood that by controlling the current direction of the second coil and changing the magnetic force exerted on the second magnet, the second storage belt 20 can be driven to rotate by the second magnet after the first end of the second storage belt 20 is driven to move in the direction away from the second end.

[0152] In some embodiments, the number of the second storage belts 20 can be multiple, and the multiple second storage belts 20 are all arranged in a spiral shape around the axis, and the outer diameters of the second storage belts 20 are different; each second storage belt 20 is configured to extend along the axial direction in the data reading and writing state, and each extends from the inside of the first storage belt 10; each second storage belt 20 is also configured to shrink along the axial direction in the non-data reading and writing state, and shrink into the first storage belt 10, and at the same time, each second storage belt 20 is also sequentially sleeved together. Through the above arrangement, the capacity of the storage device can be increased while reducing the space occupied by the first storage belt 10 and the second storage belt 20 in the non-data reading and writing state.

[0153] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A storage device, characterized in that: include: a first storage belt, wherein the first storage belt is ring-shaped; The second storage belt is ring-shaped, and the first storage belt and the second storage belt are both used to store data; the axes of the first storage belt and the second storage belt are arranged in a colinear manner, and the first storage belt and the second storage belt are configured to be arranged at intervals along the axis when the storage device is in a data reading and writing state.

2. The storage device according to claim 1, characterized in that The outer diameter of the second storage tape is smaller than the inner diameter of the first storage tape, and the second storage tape is further configured to be located in a space surrounded by the first storage tape when the storage device is in a non-data reading and writing state.

3. The storage device according to claim 2, characterized in that: There are multiple second storage belts. When the storage device is in the data reading and writing state, the second storage belts are arranged at intervals along the axis, and the outer diameters of the second storage belts located on one side of the first storage belt along the axis direction are different.

4. The storage device according to claim 3, characterized in that: When the storage device is in the data reading and writing state, the outer diameter of each of the second storage bands gradually decreases in a direction away from the first storage band.

5. The storage device according to any one of claims 1 to 4, characterized in that: The first storage tape includes a first ring-shaped tape base, a first outer magnetic track arranged on the outer wall of the first tape base, and a first inner magnetic track arranged on the inner wall of the first tape base, and the first outer magnetic track and the first inner magnetic track are arranged around the axis of the first storage tape.

6. The storage device according to claim 5, characterized in that: The first outer magnetic track and the first inner magnetic track are both in an annular or spiral shape.

7. The storage device according to any one of claims 1 to 6, characterized in that: The second storage tape includes a second tape base, a second inner magnetic track arranged on an inner wall of the second tape base, and a second outer magnetic track arranged on an outer wall of the second tape base, and the second inner magnetic track and the second outer magnetic track are arranged around the axis.

8. The storage device according to claim 7, characterized in that: The first inner magnetic track and the second inner magnetic track are both annular or spiral.

9. The storage device according to any one of claims 1 to 8, characterized in that: The storage device also includes a first support wheel and a second support wheel, the first storage belt is supported on the first support wheel, the second storage belt is supported on the second support wheel, and the axis of the first support wheel, the axis of the second support wheel and the axis of the first storage belt are collinearly arranged.

10. The storage device according to any one of claims 1 to 8, characterized in that: The storage device also includes a first magnet and a second magnet, the first magnet is arranged on the first storage belt, and the second magnet is arranged on the second storage belt. When the storage device is in a data reading and writing state, the first magnet and the second magnet drive the first storage belt and the second storage belt to move in a direction parallel to the axis under the action of magnetic force, so that the first storage belt and the second storage belt are arranged to be spaced apart in a direction parallel to the axis.

11. A reading and writing device, characterized in that: The storage device according to any one of claims 1 to 10, wherein the read / write device comprises a first magnetic head and a drive device, wherein the first magnetic head is configured to write data to the first storage tape or the second storage tape, and the first magnetic head is further configured to read data on the first storage tape or the second storage tape; The driving device is used to connect with the first storage belt and the second storage belt, and the driving device is used to drive the first storage belt and the second storage belt to rotate; the driving device is also used to drive the first storage belt and the second storage belt to move in a direction parallel to the axis when the storage device is in a data reading and writing state, so that the first storage belt and the second storage belt are arranged at intervals along the axis.

12. A storage device, characterized in that: include: A first storage belt, wherein the first storage belt is spirally arranged around its axis, and the first storage belt is used to store data; the first storage belt is configured to extend along the axis direction when the storage device is in a data reading and writing state, and to contract along the axis direction when the storage device is in a non-data reading and writing state.

13. The storage device according to claim 12, characterized in that: The first storage tape includes a first ring-shaped tape base, a first outer magnetic track arranged on an outer wall of the first tape base, and a first inner magnetic track arranged on an inner wall of the first tape base, wherein the first outer magnetic track and the first inner magnetic track are arranged in a spiral shape around the axis.

14. The storage device according to claim 12 or 13, characterized in that: The storage device further comprises a second storage belt, the second storage belt is spirally arranged around the axis, and the second storage belt is used to store data; the outer diameter of the second storage belt is smaller than the inner diameter of the first storage belt; The second storage tape is configured to extend in a direction parallel to the axis when the storage device is in a data reading and writing state, and to extend out from the space surrounded by the first storage tape; the second storage tape is also configured to shrink in a direction parallel to the axis when the storage device is in a non-data reading and writing state, and to shrink into the space surrounded by the first storage tape.

15. The storage device according to claim 14, characterized in that: The second storage tape includes a second tape base, a second outer magnetic track arranged on an outer wall of the second tape base, and a second inner magnetic track arranged on an inner wall of the second tape base, wherein the second outer magnetic track and the second inner magnetic track are arranged in a spiral shape around the axis.

16. A reading and writing device, characterized in that: Used in the storage device according to any one of claims 12 to 15, the read-write device comprises a first magnetic head and a drive device, the first magnetic head is configured to write data to the first storage tape or read data on the first storage tape; The drive device is connected to the first storage belt, and is configured to drive the first storage belt to extend along the axis direction when the storage device is in a data reading and writing state. The drive device is also configured to drive the first storage belt to contract along the axis direction when the storage device is in a non-data reading and writing state.

17. A storage system, characterized in that: include: A read-write device and a storage device as described in any one of claims 1-10 and 12-15, wherein the read-write device is connected to the storage device, and the read-write device is used to read data stored in the storage device or write data to the storage device.

18. An electronic device, characterized in that: include: A controller and the storage system according to claim 17, wherein the controller is electrically connected to the storage system.

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