Intelligent control lock based on blockchain technology and use method

Abstract

A kind of intelligent control lock based on blockchain technology, the intelligent control lock is assembled on the shell of door lock of security door, and the holding end of key for unlocking door lock is assembled in intelligent control lock.The intelligent control lock includes shell, one side of the shell is equipped with assembly fixing ring, the assembly fixing ring is arranged between the shell and the body of security door, and the shell is arranged on the outside of the shell.A rotating cavity, a control cavity and a power supply cavity are arranged in the shell.A rotating mechanism is arranged in the rotating cavity, the rotating mechanism is equipped with an assembly cavity for assembling key, and the rotating mechanism extends from the shell to the side of door lock.A circuit board is arranged in the control cavity.A battery is arranged in the power supply cavity.Compared with the prior art, the present application has the following advantages: cooperation with door lock, no need to disassemble door lock for replacement installation, easy and simple installation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intelligent locks, and particularly relates to an intelligent control lock based on a blockchain technology and a use method. BACKGROUND

[0002] The essence of the full blockchain technology is a distributed ledger technology, which is combined with a series of high-techs such as distributed data storage, consensus algorithm, encryption algorithm and point-to-point transmission network, so as to ensure the data unalterable and permanent, which has great significance for data security protection in the information age. The blockchain intelligent lock is upgraded and improved on the basis of the traditional intelligent lock, so that the blockchain intelligent lock meets the dual needs of safety and privacy.

[0003] The popular blockchain intelligent lock in the market is mainly installed by replacing the original door lock of the door body, and has the following problems: 1. The installation is complicated, the original door lock needs to be disassembled first, and then the intelligent lock is installed. 2. There is a limitation on the type of door body, which requires that the door body has enough space inside and the thickness of the door body needs to meet certain requirements, and some also require that the door body does not have a sky-to-ground lock function. 3. Some intelligent locks need to damage the original door body or the original door lock to install.

[0004] Therefore, based on some of the above prior art, the present application has been further designed and improved. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides an intelligent control lock based on a blockchain technology, which is installed in cooperation with a door lock, and does not need to disassemble the door lock for replacement installation, so the installation is convenient and simple.

[0006] In order to solve the above technical problems, the present application solves the problems through the following technical scheme.

[0007] An intelligent control lock based on a blockchain technology, the intelligent control lock is assembled on the shell of a door lock of a security door, and the holding end of a key for unlocking the door lock is assembled in the intelligent control lock. The intelligent control lock comprises a shell body, a assembling and fixing ring is arranged on one side of the shell body, the assembling and fixing ring is arranged between the shell and the security door body, and the shell body is arranged on the outer side of the shell. A rotating cavity, a control cavity and a power supply cavity are arranged in the shell body. A rotating mechanism is arranged in the rotating cavity, an assembling cavity for assembling the key is arranged in the rotating mechanism, and the rotating mechanism extends from the shell body to the side of the door lock. A circuit board is arranged in the control cavity. A battery is arranged in the power supply cavity.

[0008] In a preferred embodiment, a rotating cover plate, a control cover plate, and a power supply cover plate are respectively mounted on the housing corresponding to the rotating cavity, the control cavity, and the power supply cavity. The rotating cavity and the rotating cover plate, the control cavity and the control cover plate, and the power supply cavity and the power supply cover plate are all fixed together by locking switches. The control cover plate is equipped with a first identification module connected to the circuit board for controlling the rotation of the rotating mechanism. The housing also has a cover plate switch for opening the power supply cover plate and a second identification module for opening the rotating cover plate.

[0009] In a preferred embodiment, the locking switch includes a locking block and a locking plate. The locking plate is disposed on a rotating cover, a control cover, or a power supply cover, and the locking block is disposed on the inner wall of the housing. The locking block has a locking groove in the middle for the locking plate to pass through. The locking block has a telescopic element, and the telescopic element has a telescopic post that passes through the locking block. The locking plate has a locking hole that mates with the telescopic post.

[0010] In a preferred embodiment, the rotating mechanism includes a rotating frame, with a first rotating wheel and a second rotating wheel respectively mounted on both sides of the rotating frame. Both the first and second rotating wheels are rotatably mounted to the inner wall of the housing. The first rotating wheel extends from the housing towards the door lock and has a rotating gear ring meshing with it. The rotating gear ring is driven by a rotating motor.

[0011] In a preferred embodiment, the assembly cavity is disposed through the rotating frame, and a clamping mechanism is provided within the assembly cavity. The clamping mechanism includes an upper clamping block, a lower clamping block, and an active adsorption block. A first adsorption element is provided on the upper clamping block, a second adsorption element that cooperates with the first adsorption element is provided on the lower clamping block, and a passive adsorption block that cooperates with the active adsorption block is provided at the bottom of the lower clamping block. The adsorption force between the active and passive adsorption blocks is greater than the adsorption force between the first and second adsorption elements.

[0012] In a preferred embodiment, the lower clamping block includes a clamping platform with a rotating shaft. A left clamping member and a right clamping member, respectively located on opposite sides of the clamping platform, are connected to the rotating shaft via torsion springs. When the clamping mechanism is in the clamping state, the left and right clamping members, together with the clamping platform and the upper clamping block, clamp the key. When the clamping mechanism is in the released state, the upper and lower clamping blocks separate, and the left and right clamping members spring open to the sides under the action of the torsion springs, releasing the clamp on the key.

[0013] In a preferred embodiment, both the left and right clamping members include pressure blocks, and the second adsorption member is mounted on the pressure block. The lower surface of the pressure block has a plurality of spaced-apart connecting arms that connect to the rotating shaft. The connecting arms of the left clamping member and the connecting arms of the right clamping member are staggered. The lower surface of the upper clamping block has converging flanges on both sides that mate with the pressure block.

[0014] In a preferred embodiment, the lower surface of the upper clamping block and the upper surface of the clamping platform are provided with friction textures.

[0015] In a preferred embodiment, the gripping end of the key is provided with a through hole, and the lower surface of the upper clamping block is provided with a limiting protrusion corresponding to the through hole.

[0016] In a preferred embodiment, the rotating frame is equipped with a translation motor, the translation motor is connected to a translation gear, the upper surface of the upper clamping block is provided with a translation tooth groove that meshes with the translation gear, and the rotating frame is provided with a through slot for the moving gear to pass through.

[0017] A method for using a smart control lock, which unlocks the door by turning a key, includes the following steps:

[0018] S10: During installation, place the grip end of the key in the assembly cavity of the rotating mechanism, install the smart control lock on the door lock housing, and ensure that the key is correctly inserted into the door lock during installation.

[0019] S20: When automatically unlocking, the user is identified through the first identification module. After the unlocking information is matched, the circuit board controls the rotating mechanism to rotate, which drives the key to rotate to unlock the door lock.

[0020] S30: When manually unlocking, the user identifies the door lock through the second identification module. After the unlocking information is matched, the rotating cover opens, and the user unlocks the door lock by manually controlling the rotating mechanism.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] 1. It can be installed in conjunction with a door lock without the need to disassemble the door lock for replacement, making installation convenient and simple.

[0023] 2. The door lock is assembled and fixed by the mounting ring, which eliminates the need for adaptability modifications such as drilling holes in the door, thus avoiding damage to the door structure.

[0024] 3. The door lock is unlocked by turning the key, which can be applied to all types of security doors on the market, making it highly practical. Attached Figure Description

[0025] Figure 1 This is an assembly diagram of an intelligent control lock.

[0026] Figure 2 A 3D illustration of a smart control lock Figure One .

[0027] Figure 3 A 3D illustration of a smart control lock Figure Two .

[0028] Figure 4 This is a schematic diagram of the internal structure of a smart control lock.

[0029] Figure 5 This is a schematic diagram of the rotating mechanism.

[0030] Figure 6 This is a plan view of the rotating mechanism.

[0031] Figure 7 This is a schematic diagram of the clamping mechanism.

[0032] Figure 8 This is a three-dimensional schematic diagram of the upper clamping block.

[0033] Figure 9 This is a three-dimensional schematic diagram of the lower clamping block.

[0034] Figure 10 This is a cross-sectional schematic diagram of the locking switch mechanism.

[0035] The following is an explanation of the markings in the accompanying drawings:

[0036] 1. Security door; 11. Door lock; 12. Outer casing;

[0037] 2. Key;

[0038] 3. Intelligent control lock; 31. Housing; 311. Rotating cavity; 312. Control cavity; 313. Power supply cavity; 314. Circuit board; 315. Battery; 32. Rotating cover; 33. Control cover; 34. Power supply cover; 35. Assembly fixing ring; 36. First identification module; 37. Cover switch; 38. Second identification module;

[0039] 4. Rotating mechanism; 41. Rotating frame; 42. First rotating wheel; 421. Rotating gear ring; 43. Second rotating wheel; 44. Rotating gear; 45. Rotating motor; 46. Translation motor; 47. Translation gear;

[0040] 5. Clamping mechanism; 51. Upper clamping block; 511. First suction element; 512. Converging flange; 513. Limiting protrusion; 514. Friction texture; 515. Translational tooth groove; 52. Lower clamping block; 521. Left clamping element; 522. Right clamping element; 523. Clamping platform; 524. Pressure block; 525. Connecting arm; 526. Second suction element; 527. Passive suction block; 53. Active suction block;

[0041] 6. Locking switch; 61. Locking block; 62. Locking piece; 63. Telescopic element; 64. Telescopic column. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] In the following embodiments, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the description of this invention; therefore, they should not be construed as limiting this invention. Furthermore, terms such as first, second, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this invention, unless otherwise expressly specified and limited, terms such as installation, connection, linking, etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Reference Figures 1 to 10 A smart control lock based on blockchain technology is disclosed. The smart control lock 3 is mounted on the outer shell 12 of the lock 11 of a security door 1. The gripping end of the key 2 used to unlock the lock 11 is mounted inside the smart control lock 3. The smart control lock 3 includes a shell 31, on one side of which is a mounting fixing ring 35. The mounting fixing ring 35 is disposed between the outer shell 12 and the security door 1, and the shell 31 is located on the outside of the outer shell 12. The shell 31 contains a rotating cavity 311, a control cavity 312, and a power supply cavity 313. A rotating mechanism 4 is installed in the rotating cavity 311, and the rotating mechanism 4 contains a mounting cavity for mounting the key 2. The rotating mechanism 4 extends from the side of the shell 31 toward the lock 11. A circuit board 314 is installed in the control cavity 312. A battery 315 is installed in the power supply cavity 313.

[0046] Specifically, a rotating cover plate 32, a control cover plate 33, and a power supply cover plate 34 are respectively mounted on the housing 31 corresponding to the rotating cavity 311, the control cavity 312, and the power supply cavity 313. The rotating cavity 311 and the rotating cover plate 32, the control cavity 312 and the control cover plate 33, and the power supply cavity 313 and the power supply cover plate 34 are all fixed together by locking switches 6. The control cover plate 33 is equipped with a first identification module 36 connected to the circuit board 314 for controlling the rotation of the rotating mechanism 4. The housing 31 also has a cover plate switch 37 for opening the power supply cover plate 34 and a second identification module 38 for opening the rotating cover plate 32.

[0047] In one specific embodiment, the locking switch 6 includes a locking block 61 and a locking piece 62. The locking piece 62 is disposed on the rotating cover plate 32, the control cover plate 33, or the power supply cover plate 34, and the locking block 61 is disposed on the inner wall of the housing 31. The locking block 61 has a locking groove in the middle for the locking piece 62 to pass through. The locking block 61 is provided with a telescopic element 63, and the telescopic element 63 is provided with a telescopic post 64. The telescopic post 64 passes through the locking block 61, and the locking piece 62 is provided with a locking hole that cooperates with the telescopic post 64.

[0048] Compared with the above embodiments, the difference in this embodiment is that the locking switch 6 is completely hidden inside the housing 31, preventing others from opening the door and entering the room by disassembling the smart control lock 3.

[0049] This embodiment enables the door lock 11 to be unlocked by controlling the rotation of the key 2. The method of use is as follows: When installing this embodiment, the gripping end of the key 2 of the door lock 11 is installed in the assembly cavity of the rotating mechanism 4. The smart control lock 3 is installed on the outer shell 12 of the door lock 11. During installation, ensure that the key 2 is correctly inserted into the door lock 11. When using this embodiment for automatic unlocking, the user is identified through the first identification module 36. After the unlocking information matches, the circuit board 314 controls the rotating mechanism 4 to rotate, causing the key 2 to rotate and unlock the door lock 11. When using this embodiment for manual unlocking, the user is identified through the second identification module 38. After the unlocking information matches, the rotating cover 32 opens, and the user unlocks the door lock 11 by manually controlling the rotating mechanism 4.

[0050] In one specific embodiment, the rotating mechanism 4 includes a rotating frame 41, with a first rotating wheel 42 and a second rotating wheel 43 respectively mounted on both sides of the rotating frame 41. Both the first rotating wheel 42 and the second rotating wheel 43 are rotatably mounted to the inner wall of the housing 31. The first rotating wheel 42 extends from the side of the housing 31 toward the door lock 11, and has a rotating gear ring 421 that meshes with a rotating gear 44, which is driven by a rotating motor 45. This embodiment has a simple structure and reliable assembly; by controlling the rotation of the rotating motor 45, the key 2 can be rotated to unlock the door lock 11.

[0051] In one specific embodiment, the assembly cavity is disposed through the rotating frame 41, and a clamping mechanism 5 is provided within the assembly cavity. The clamping mechanism 5 is controlled by a second identification module 38. The clamping mechanism 5 includes an upper clamping block 51, a lower clamping block 52, and an active adsorption block 53. The upper clamping block 51 is provided with a first adsorption element 511, the lower clamping block 52 is provided with a second adsorption element 526 that cooperates with the first adsorption element 511, and the bottom of the lower clamping block 52 is provided with a passive adsorption block 527 that cooperates with the active adsorption block 53. The adsorption force between the active adsorption block 53 and the passive adsorption block 527 is greater than the adsorption force between the first adsorption element 511 and the second adsorption element 526. When the clamping mechanism 5 is in the clamping state, the active adsorption block 53 is de-energized, and the upper clamping block 51 and the lower clamping block 52 are adsorbed and clamped. When the clamping mechanism 5 is in the released state, the active adsorption block 53 is energized, and the lower clamping block 52 falls and is adsorbed and fixed to the passive adsorption block 527.

[0052] Specifically, the lower clamping block 52 includes a clamping platform 523, on which a rotating shaft is provided. A left clamping member 521 and a right clamping member 522, respectively located on opposite sides of the clamping platform 523, are connected to the rotating shaft via torsion springs. When the clamping mechanism 5 is in the clamping state, the left clamping member 521 and the right clamping member 522 cooperate with the clamping platform 523 and the upper clamping block 51 to clamp the key 2. When the clamping mechanism 5 is in the released state, the upper clamping block 51 separates from the lower clamping block 52, and the left clamping member 521 and the right clamping member 522 spring open to both sides under the action of the torsion springs, releasing the clamp on the key 2.

[0053] The specific structures of the left clamping member 521 and the right clamping member 522 are as follows: both the left clamping member 521 and the right clamping member 522 include a pressure block 524, and the second adsorption member 526 is mounted on the pressure block 524. The lower surface of the pressure block 524 is provided with a plurality of spaced connecting arms 525 that are connected to the rotating shaft. The connecting arms 525 of the left clamping member 521 and the connecting arms 525 of the right clamping member 522 are staggered, so that the left clamping member 521 and the right clamping member 522 are subjected to uniform force. The lower surface of the upper clamping block 51 is provided with converging flanges 512 on both sides that cooperate with the pressure block 524.

[0054] Compared with the above embodiments, the difference in this embodiment is that the key 2 is assembled in the assembly cavity through the clamping mechanism 5, so that this embodiment can assemble different types of keys 2 to be suitable for different models of door locks 11.

[0055] In one specific embodiment, the lower surface of the upper clamping block 51 and the upper surface of the clamping platform 523 are provided with friction textures 514. The friction textures 514 can increase the frictional resistance during clamping. The gripping end of the key 2 is provided with a through hole, and the lower surface of the upper clamping block 51 is provided with a limiting protrusion 513 corresponding to the through hole. The rotating frame 41 is equipped with a translation motor 46, the translation motor 46 is connected to a translation gear 47, the upper surface of the upper clamping block 51 is provided with a translation tooth groove 515 that meshes with the translation gear 47, and the rotating frame 41 is provided with a through groove for the moving gear to pass through.

[0056] Compared with the above embodiments, the difference in this embodiment is that when the user needs to remove the key 2, the translation motor 46 can drive the upper clamping block 51 to translate outward, so that the key 2 can be removed for the user to take.

[0057] The smart control lock in this application can be a blockchain smart lock. The smart control lock is equipped with a processing chip, a communication module (Wi-Fi communication module, Bluetooth communication module, 5G communication module, etc.), and an identity recognition module (fingerprint, iris, RFID chip, etc.). It can identify and process the identity information of the unlocker, unlocking time information, unlocking frequency information, lock status information, etc., and encrypt and send them to a smartphone or processor for the user to view.

[0058] Compared with the prior art, this application has the following beneficial effects:

[0059] 1. It can be installed in conjunction with door lock 11 without the need to disassemble door lock 11 for replacement, making installation convenient and simple.

[0060] 2. The door lock 11 is assembled and fixed by the mounting ring 35 and the outer shell 12 of the door lock 11. No adaptation modifications such as drilling are required for the door body, thus avoiding damage to the door structure.

[0061] 3. The door lock 11 can be unlocked by turning the key 2. It can be applied to all types of security doors on the market and is highly practical.

[0062] The scope of protection of this invention includes, but is not limited to, the above embodiments. The scope of protection of this invention is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art fall within the scope of protection of this invention.

Claims

1. A smart control lock based on blockchain technology, characterized in that, The intelligent control lock (3) is mounted on the outer shell (12) of the door lock (11) of the security door (1), and the gripping end of the key (2) used to unlock the door lock (11) is mounted inside the intelligent control lock (3); The intelligent control lock (3) includes a housing (31), and an assembly fixing ring (35) is installed on one side of the housing (31). The assembly fixing ring (35) is located between the outer shell (12) and the anti-theft door (1). The housing (31) is located on the outside of the outer shell (12). The housing (31) is provided with a rotating cavity (311), a control cavity (312), and a power supply cavity (313); a rotating mechanism (4) is installed in the rotating cavity (311), and an assembly cavity for assembling the key (2) is installed in the rotating mechanism (4), and the rotating mechanism (4) extends from the side of the housing (31) toward the door lock (11); a circuit board (314) is installed in the control cavity (312); and a battery (315) is installed in the power supply cavity (313). The housing (31) is equipped with a rotating cover plate (32), a control cover plate (33), and a power supply cover plate (34) respectively corresponding to the rotating cavity (311), the control cavity (312), and the power supply cavity (313). The rotating cavity (311) and the rotating cover plate (32), the control cavity (312) and the control cover plate (33), and the power supply cavity (313) and the power supply cover plate (34) are all fixed by locking switches (6). The control cover plate (33) is equipped with a first identification module (36) connected to the circuit board (314) for controlling the rotation of the rotating mechanism (4). The housing (31) is also equipped with a cover plate switch (37) for opening the power supply cover plate (34) and a second identification module (38) for opening the rotating cover plate (32). The rotating mechanism (4) includes a rotating frame (41), on which a first rotating wheel (42) and a second rotating wheel (43) are respectively mounted on both sides; the first rotating wheel (42) and the second rotating wheel (43) are both mounted and rotated with the inner wall of the housing (31); the first rotating wheel (42) extends from the side of the housing (31) toward the door lock (11), and a rotating gear ring (421) is provided on the first rotating wheel (42), which meshes with a rotating gear (44), which is driven by a rotating motor (45); The assembly cavity is disposed through the rotating frame (41), and a clamping mechanism (5) is provided in the assembly cavity; the clamping mechanism (5) includes an upper clamping block (51), a lower clamping block (52) and an active adsorption block (53); the upper clamping block (51) is provided with a first adsorption element (511), the lower clamping block (52) is provided with a second adsorption element (526) that cooperates with the first adsorption element (511), and the bottom of the lower clamping block (52) is provided with a passive adsorption block (527) that cooperates with the active adsorption block (53); the adsorption force between the active adsorption block (53) and the passive adsorption block (527) is greater than the adsorption force between the first adsorption element (511) and the second adsorption element (526).

2. The smart control lock based on blockchain technology according to claim 1, characterized in that, The locking switch (6) includes a locking block (61) and a locking piece (62). The locking piece (62) is disposed on a rotating cover plate (32), a control cover plate (33), or a power supply cover plate (34). The locking block (61) is disposed on the inner wall of the housing (31). The locking block (61) has a locking groove in the middle for the locking piece (62) to pass through. The locking block (61) has a telescopic element (63). The telescopic element (63) has a telescopic post (64). The telescopic post (64) passes through the locking block (61). The locking piece (62) has a locking hole that cooperates with the telescopic post (64).

3. The smart control lock based on blockchain technology according to claim 1, characterized in that, The lower clamping block (52) includes a clamping platform (523), on which a rotating shaft is provided. A left clamping member (521) and a right clamping member (522) located on both sides of the clamping platform (523) are connected by a torsion spring on the rotating shaft. When the clamping mechanism (5) is in the clamping state, the left clamping member (521) and the right clamping member (522) cooperate with the clamping platform (523) and the upper clamping block (51) to clamp the key (2). When the clamping mechanism (5) is in the releasing state, the upper clamping block (51) separates from the lower clamping block (52), and the left clamping member (521) and the right clamping member (522) spring open to both sides under the action of the torsion spring, releasing the clamping of the key (2).

4. A smart control lock based on blockchain technology according to claim 3, characterized in that, Both the left clamping member (521) and the right clamping member (522) include a pressure block (524). The second adsorption member (526) is mounted on the pressure block (524). The lower surface of the pressure block (524) is provided with a plurality of connecting arms (525) that are spaced apart and connected to the rotating shaft. The connecting arms (525) of the left clamping member (521) and the connecting arms (525) of the right clamping member (522) are staggered. The lower surface of the upper clamping block (51) is provided with converging flanges (512) that cooperate with the pressure block (524) on both sides.

5. A smart control lock based on blockchain technology according to claim 4, characterized in that, The lower surface of the upper clamping block (51) and the upper surface of the clamping platform (523) are provided with friction texture (514); the gripping end of the key (2) is provided with a through hole, and the lower surface of the upper clamping block (51) is provided with a limiting protrusion (513) corresponding to the through hole.

6. A smart control lock based on blockchain technology according to claim 5, characterized in that, The rotating frame (41) is equipped with a translation motor (46), the translation motor (46) is connected to a translation gear (47), the upper surface of the upper clamping block (51) is provided with a translation tooth groove (515) that meshes with the translation gear (47), and the rotating frame (41) is provided with a through groove for the moving gear to pass through.

7. A method of using a smart control lock, comprising the smart control lock (3) based on blockchain technology as described in any one of claims 1-6, characterized in that, The door lock (11) can be unlocked by turning the control key (2), including the following steps: S10: During installation, place the gripping end of the key (2) of the door lock (11) into the assembly cavity of the rotating mechanism (4), and install the smart control lock (3) on the outer shell (12) of the door lock (11). During installation, ensure that the key (2) is correctly inserted into the door lock (11). S20: When unlocking automatically, the user identifies the door lock through the first identification module (36). After the unlocking information is matched, the circuit board (314) controls the rotating mechanism (4) to rotate, which drives the key (2) to rotate to unlock the door lock (11). S30: When unlocking manually, the user identifies the door lock (11) through the second identification module (38). After the unlocking information is matched, the rotating cover (32) is opened, and the user unlocks the door lock (11) by manually controlling the rotating mechanism (4).

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