Locking device and control method

Abstract

The invention relates to a locking device and a control method. The locking device comprises a shell; each locking assembly comprises a locking part and a first elastic piece for driving the locking part to be in a locked state; the driving assembly comprises a transmission part, a rotary driving part and a pawl part; when the rotary driving part operates in the first direction, the pawl part can contract in the radial direction so as to cross the transmission part to continue to rotate. When the rotary driving part operates in the second direction, the pawl part can push the transmission part to move so as to drive the locking part to move; the first direction is opposite to the second direction, the elastic strength of the first elastic piece is larger than that of the second elastic piece, and the locking device has the advantage that the manufacturing cost and the product size of the locking device are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of shared mobile power sources, and in particular to a locking device and a control method. Background Art

[0002] Shared battery storage solves the problem of insufficient charging sockets in public places by providing a charging device that can be used by multiple people.

[0003] Existing shared battery compartments usually include a charging chamber, a mobile power source, and a locking device, wherein the locking device is used to control the unlocking and locking of the mobile power source. Since the same shared battery compartment usually has multiple mobile power sources, correspondingly, it is necessary to set up several locking devices to control the unlocking and locking of different mobile power sources, and the number of motors and driving structures used for driving also increases accordingly, especially the motor, which has a relatively high cost, which leads to a significant increase in the production cost and product size of the locking device.

[0004] Therefore, it is urgent for those skilled in the art to provide a locking device and a control method to reduce the manufacturing cost and product size of the locking device. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a locking device and a control method.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A locking device, comprising:

[0008] case;

[0009] A plurality of locking assemblies, each of which comprises a locking portion and a first elastic member driving the locking portion to be in a locked state;

[0010] A driving assembly, comprising a transmission part, a rotation driving part and a ratchet part;

[0011] The transmission part is arranged in one-to-one correspondence with the locking part, and extends from the locking part to the rotation driving part, the rotation driving part is installed at the housing, the pawl part is rotatably installed on the rotation driving part, and is connected to the rotation driving part through a second elastic member;

[0012] When the rotary drive unit rotates in the first direction, the pawl unit can be contracted in the radial direction to continue rotating over the transmission unit;

[0013] When the rotary drive portion rotates in the second direction, the pawl portion can push the transmission portion to move, so as to drive the locking portion to move;

[0014] The first direction is arranged in opposite directions to the second direction, and the elastic strength of the first elastic member is greater than the elastic strength of the second elastic member.

[0015] Preferably, the rotary drive portion comprises a contraction accommodation area and an abutment surface;

[0016] The pawl portion is rotatably mounted at a position of the contraction accommodating area close to the abutment surface;

[0017] The second elastic member is always in a stretched state to drive the pawl portion to abut against the abutting surface.

[0018] Preferably, each of the locking assemblies comprises two locking portions; the two locking portions are arranged opposite to each other and connected via the first elastic member;

[0019] Among the two locking parts, the transmission part corresponding to one of the locking parts is set as the first transmission part, and the transmission part corresponding to the other locking part is set as the second transmission part.

[0020] Preferably, the first transmission part comprises a first protrusion, a transmission rod and a first force-bearing protrusion;

[0021] The first protrusion is fixedly mounted on the locking portion corresponding thereto;

[0022] The transmission rod is rotatably mounted on the housing, with one end of the transmission rod abutting against the first protrusion, and the other end of the transmission rod is fixedly provided with the first force-bearing protrusion;

[0023] or,

[0024] The first transmission part includes a transmission rod and a first force-bearing protrusion. The transmission rod is rotatably mounted on the housing, and one end of the transmission rod is connected to the corresponding locking part, and the other end is fixedly provided with the first force-bearing protrusion.

[0025] Preferably, the second transmission part comprises a second protrusion and a second force-bearing protrusion, the second protrusion is fixedly connected to its corresponding locking part, and a side away from the locking part is fixedly connected to the second force-bearing protrusion;

[0026] or,

[0027] The second transmission part includes a third force-bearing protrusion and a driving slider, the third force-bearing protrusion is fixedly connected to its corresponding locking part, the driving slider is slidably installed on the shell, the third force-bearing protrusion is provided with a first guide inclined surface, and one side of the driving slider is provided with a second guide inclined surface corresponding to the first guide inclined surface.

[0028] Preferably, the driving assembly further comprises a sensing block and a control board;

[0029] The control board is provided with an origin sensor, and the origin sensor is used to monitor the origin position of the sensing block, and / or the control board is provided with a lock tongue sensor, and the lock tongue sensor is used to monitor the unlocking position of the locking part.

[0030] Preferably, the induction block is fixed to one end of the rotary drive portion extending out of the housing;

[0031] The origin sensor and the lock tongue sensor are both inserted into the control board.

[0032] A control method, applied to the above locking device, comprises the following steps:

[0033] The pawl portion is driven by the rotary drive portion to rotate in a first direction to a preset position, and the pawl portion is contracted toward the central axis direction of the rotary drive portion during the operation to continue to rotate over the transmission portion of the drive assembly;

[0034] The pawl portion is driven to rotate along the second direction by the rotary driving portion, and the pawl portion abuts against the rotary driving portion during the rotation process to drive the locking portion to move.

[0035] Preferably, the method further comprises the following steps:

[0036] Assembling the locking device and placing the rotary drive portion and the pawl portion at the origin position;

[0037] After the locking device is assembled, the rotation driving part is driven to rotate one circle, and the initial data of one circle of rotation is recorded;

[0038] Based on the initial data, the rotation driving part is driven to operate to determine the actual position of the rotation driving part during rotation, and after the corresponding locking part is unlocked, the rotation driving part and the pawl part are driven to operate along the first direction to the origin position.

[0039] Preferably, the method further comprises the following steps:

[0040] Monitoring the origin positions of the rotary drive unit and the pawl unit by an origin sensor;

[0041] and / or,

[0042] The unlocked position of the locking part is monitored by a bolt sensor.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] The present solution provides a locking device, in which a transmission part, a rotary drive part, a pawl part, a second elastic part, a first elastic part and a locking part cooperate with each other. When the rotary drive part drives the pawl part to move in a first direction, the pawl part can shrink under the thrust exerted by the overall structure formed by the first elastic part, the locking part and the transmission part, so that the pawl part can pass over the transmission part, thereby realizing the adjustment of the circumferential position of the pawl part; and when the pawl part moves in a second direction, it can push the transmission part to move, thereby driving the locking part to move, thereby realizing the unlocking of the locking part. It can be seen from this that the locking device of the present solution can realize the unlocking of multiple locking parts through the same driving component, reduce the use of the driving component in the locking device, thereby reducing the manufacturing cost of the locking device and reducing the structural size of the locking device, especially when applied to the locking of a mobile power supply, it can greatly reduce the size and manufacturing cost of the entire shared battery compartment. And due to the cooperation between the first elastic member and the second elastic member, the pawl portion can automatically expand and contract during the rotation of the rotary drive portion, so that only one power source is needed to drive the entire locking device, which can further reduce the manufacturing cost of the locking device and reduce the structural size of the locking device. Correspondingly, based on the above-mentioned control method of a locking device, multiple locking portions can be unlocked through the same driving component, thereby reducing the size and manufacturing cost of the entire locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0047] Figure 2 for Figure 1 Schematic diagram of the explosion.

[0048] Figure 3 for Figure 2 Schematic diagram of the distribution of the middle housing, locking assembly and drive assembly.

[0049] Figure 4 for Figure 3 Exploded diagram of the mid-drive assembly (partial).

[0050] Figure 5 It is a schematic diagram of the position of the pawl portion when it is in the initial state.

[0051] Figure 6 for Figure 4 Schematic diagram of the structure of the middle pawl part.

[0052] Figure 7 for Figure 1 Schematic diagram of the structure installed on the control panel.

[0053] Figure 8 It is a structural diagram of embodiment 2 of the present invention.

[0054] Fig. 9 for Figure 8 Schematic diagram of the structure from another perspective.

[0055] Fig.10 for Figure 8 Schematic diagram of the structure of the middle drive slider.

[0056] Fig.11 This is a schematic diagram of the structure of the third embodiment of the present invention.

[0057] Description of reference numerals:

[0058] 1. Shell; 10. Sink; 11. Support rod; 2. Locking assembly; 21. Locking part; 211. Second extension rod; 22. First elastic member; 3. Driving assembly; 31. Rotating driving part; 311. Contraction accommodating area; 312. Abutting surface; 313. Cylindrical shaft; 32. Ratchet part; 321. Pushing surface; 322. Abutting force receiving surface; 33. Second elastic member; 331. First pull ear; 332. Second pull ear; 34. First transmission part; 341. First protrusion; 342. Transmission Moving rod; 343, first force-bearing protrusion; 35, second transmission part; 351, second protrusion; 352, second force-bearing protrusion; 353, third force-bearing protrusion; 3531, first guide slope; 354, driving slider; 3541, second guide slope; 36, sensing block; 361, connecting seat; 362, connecting rod; 363, first extension rod; 37, control board; 371, origin sensor; 372, lock tongue sensor; 38, driving motor; 4, first pull ring; 5, second pull ring. DETAILED DESCRIPTION

[0059] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] See also Figures 1 to 11 The embodiment of the present invention provides a locking device, which is used to be installed in a shared battery compartment for storing a mobile power source (specifically, between multiple charging cavities of the shared battery compartment, and between four charging cavities in this embodiment) to unlock the power bank in the shared battery compartment. Specifically, the locking device includes a housing 1, a locking assembly 2, and a driving assembly 3. The locking assembly 2 and the driving assembly 3 are installed on the housing 1. The driving assembly 3 can drive the locking assembly 2 to operate, thereby unlocking the power bank.

[0063] Specifically, there are several locking assemblies 2, each of which includes a locking portion 21 and a first elastic member 22 that drives the locking portion 21 to be in a locked state. The driving assembly 3 includes a transmission portion, a rotation driving portion 31 and a ratchet portion 32; the transmission portion is arranged in a one-to-one correspondence with the locking portion 21, and extends from the locking portion 21 to the rotation driving portion 31, the rotation driving portion 31 is installed at the housing 1, the ratchet portion 32 is rotatably installed on the rotation driving portion 31, and is connected to the rotation driving portion 31 through a second elastic member 33; when the rotation driving portion 31 rotates in the first direction, the ratchet portion 32 can contract radially to continue rotating over the transmission portion; when the rotation driving portion 31 rotates in the second direction, the ratchet portion 32 can push the transmission portion to move to drive the locking portion 21 to move; the first direction and the second direction are arranged in opposite directions, and the elastic strength of the first elastic member 22 is greater than the elastic strength of the second elastic member 33.

[0064] In the above scheme, the transmission part, the rotary drive part 31, the pawl part 32, the second elastic member 33, the first elastic member 22 and the locking part 21 cooperate with each other. When the rotary drive part 31 drives the pawl part 32 to move in the first direction, the pawl part 32 can shrink under the thrust exerted by the overall structure formed by the first elastic member 22, the locking part 21 and the transmission part, so that the pawl part 32 can pass over the transmission part, thereby realizing the adjustment of the circumferential position of the pawl part 32; and when the pawl part 32 moves in the second direction, it can push the transmission part to move, thereby driving the locking part 21 to move, thereby realizing the unlocking of the locking part 21. It can be seen from this that the locking device of this scheme can realize the unlocking of multiple locking parts 21 through the same driving component 3, reduce the use of the driving component 3 in the locking device, and thereby reduce the manufacturing cost and structural size. In particular, when it is applied to the locking of a mobile power supply, it can greatly reduce the size and manufacturing cost of the entire shared battery compartment. And due to the mutual cooperation between the first elastic member 22 and the second elastic member 33, the pawl portion 32 can automatically extend and retract during the rotation of the rotating drive portion 31, so that only one power source (i.e., the drive motor 38 mentioned later) is required to drive the entire locking device, which can further reduce the manufacturing cost of the locking device and reduce the structural size of the locking device.

[0065] It is understandable that the “first direction” is Figure 3 In the counterclockwise direction in the orientation shown, when the pawl portion 32 rotates in this direction, the side of the pawl portion 32 close to the second elastic member 33 is acted upon by the transmission portion, so that the pawl portion 32 can contract radially, and the pawl portion 32 can continue to rotate beyond the transmission portion; correspondingly, the “second direction” is Figure 3 In the clockwise direction under the orientation shown, when the pawl portion 32 rotates in this direction, the side of the pawl portion 32 away from the second elastic member 33 is acted upon by the transmission portion. At this time, the pawl portion 32 cannot shrink and resists the rotating drive portion 31, thereby pushing the transmission portion to operate, and further causing the transmission portion to drive the locking portion 21 to move, thereby unlocking the power bank.

[0066] The locking assembly 2 and the driving assembly 3 can be set to a variety of matching structures, so that the transmission part, the rotation driving part 31, the pawl part 32 and the second elastic part 33 of the driving assembly 3 cooperate with the first elastic part 22 and the locking part 21 of the locking assembly 2, so that the same driving assembly 3 can unlock different locking parts 21.

[0067] Embodiment 1

[0068] See also Figures 1 to 7 In this embodiment, the rotary drive portion 31 includes a contraction accommodating area 311 and a contact surface 312; the pawl portion 32 is rotatably installed in the contraction accommodating area 311 close to the contact surface 312; the second elastic member 33 is always in a stretched state to drive the pawl portion 32 to contact the contact surface 312.

[0069] Specifically, the rotary drive portion 31 is configured as a cylindrical rod, the contraction accommodating area 311 is a notch formed on the cylindrical rod, and the pawl portion 32 is rotatably installed on the rotary drive portion 31 through a cylindrical shaft 313; the pawl portion 32 has a pushing surface 321 and a resistance receiving surface 322, one side of the second elastic member 33 is connected to the side of the pawl portion 32 provided with the resistance receiving surface 322, and the other end extends circumferentially away from the contraction accommodating area 311 and is connected to the rotary drive portion 31. When the pawl portion 32 is not subjected to external force, the second elastic member 33 can always pull the pawl portion 32 so that the resistance receiving surface 322 of the pawl portion 32 always resists the abutment surface 312.

[0070] Further, the second elastic member 33 is configured as a tension spring, one end of which is provided with a first pull ear 331, and the other end of which is provided with a second pull ear 332; the pawl portion 32 is provided with a first pull ring 4, and the rotation drive portion 31 is provided with a second pull ring 5, the first pull ear 331 is hung on the first pull ring 4, and the second pull ear 332 is hung on the second pull ring 5, and the elastic restoring force generated by the tension spring is always directed from the first pull ring 4 to the second pull ring 5. It should be understood that since the elastic force of the second elastic member 33 is relatively small, and there is at least one stretching and rebounding in each unlocking process, therefore, in this embodiment, the first pull ear 331, the second pull ear 332, the first pull ring 4 and the second pull ring 5 cooperate with each other, so that the second elastic member 33 can be easily replaced.

[0071] See also Figures 1 to 7 In this embodiment, the locking assembly 2 has two groups arranged opposite to each other, and the driving assembly 3 is located between the two groups of locking assemblies 2; each locking assembly 2 includes two locking parts 21; the two locking parts 21 are arranged opposite to each other and connected by a first elastic member 22. It can be seen that in this embodiment, the same driving assembly 3 can be used to control the unlocking of four power banks. Of course, in other embodiments, the locking assembly 2 can also be arranged in three, four or more groups, which are arranged around the driving assembly 3, so that the driving assembly 3 can drive all the locking parts 21 to unlock.

[0072] For the convenience of description, one of the locking components 2 is taken as an example for explanation. Figure 3 The left and right positions in the figure are used to illustrate the left and right positions of the entire locking device.

[0073] See also Figures 1 to 6The first elastic member 22 can be set as a spring, and one end of the spring is connected to one of the locking parts 21, and the other end is connected to the other locking part 21. When the locking part 21 is not subjected to external force, the first elastic member 22 applies a force along the X1 direction to one of the locking parts 21, so that its lock tongue extends into the lock hole of the mobile power supply to be locked, thereby locking the mobile power supply matched with the locking part 21; correspondingly, the first elastic member 22 applies a force along the X2 direction to the other locking part 21, thereby locking the mobile power supply matched with the locking part 21.

[0074] Specifically, among the two locking parts 21 of the locking assembly 2 , the transmission part corresponding to one of the locking parts 21 is configured as the first transmission part 34 , and the transmission part corresponding to the other locking part 21 is configured as the second transmission part 35 .

[0075] Specifically, the first transmission part 34 includes a first protrusion 341, a transmission rod 342 and a first force-bearing protrusion 343; the first protrusion 341 is fixed on the locking part 21 corresponding thereto; the transmission rod 342 is rotatably mounted on the shell 1, and one end thereof abuts against the first protrusion 341, and the other end thereof is fixed with the first force-bearing protrusion 343.

[0076] Specifically, the second transmission portion 35 includes a second protrusion 351 and a second force-bearing protrusion 352 . The second protrusion 351 is fixedly connected to the corresponding locking portion 21 , and the side away from the locking portion 21 is fixedly connected to the second force-bearing protrusion 352 .

[0077] It is not difficult to understand that when the left side of the first force-bearing protrusion 343 of the first transmission part 34 is subjected to force, the transmission rod 342 can be driven to rotate counterclockwise, so that the other end of the transmission rod 342 pushes the first protrusion 341 in the X1 direction, and then drives the locking part 21 on the right side to move to the left (i.e., move in the X1 direction), thereby unlocking the locking part 21 (i.e., the right locking part 21), and squeezing the first elastic member 22 in the process. When the left side of the first force-bearing protrusion 343 is not subjected to force, the locking part 21 (i.e., the right locking part 21) is reset to the locked position under the elastic restoring force of the first elastic member 22. Similarly, when the left side of the second force-bearing protrusion 352 is subjected to force, it can directly drive the locking portion 21 on the left side to move right (i.e., move in the direction of X2), thereby unlocking the locking portion 21 (i.e., the left locking portion 21); when the left side of the second force-bearing protrusion 352 is not subjected to force, the locking portion 21 (i.e., the left locking portion 21) is reset to the locked position under the action of the elastic restoring force of the first elastic member 22.

[0078] See also Figures 1 to 7In order to achieve precise control of the entire locking device, in this embodiment, the driving assembly 3 also includes a sensing block 36 and a control board 37. The control board 37 is connected to an origin sensor 371, and the origin sensor 371 is used to monitor the origin position of the sensing block 36.

[0079] Furthermore, the control panel 37 is also connected to a lock tongue sensor 372 , and the lock tongue sensor 372 is used to monitor the unlocking position of the locking portion 21 .

[0080] It should be understood that there are many ways to connect the origin sensor 371 and the lock tongue sensor 372 to the control board 37, and it only needs to ensure communication connection with the control board 37 (for example, with the control chip or signal transmission structure on the control board 37). In order to avoid too many internal lines of the entire locking device and ensure the stability of the installation of the origin sensor 371 and the lock tongue sensor 372, in this embodiment, the induction block 36 is fixed to one end of the rotation drive part 31 extending out of the housing 1; the origin sensor 371 and the lock tongue sensor 372 are both plugged into the control board 37.

[0081] Furthermore, the sensing block 36 includes a connecting seat 361, a connecting rod 362 and a first extension rod 363. The connecting seat 361 is fixedly installed on one end of the rotating drive unit 31 extending out of the shell 1. One end of the connecting rod 362 is connected to the connecting seat 361, and the other end is connected to the first extension rod 363. The first extension rod 363 can rotate to the sensing position of the origin sensor 371.

[0082] Furthermore, the housing 1 is provided with a sink 10 for the sensor block 36 to rotate.

[0083] In order to avoid collision interference with the origin sensor 371 during the rotation of the first extension rod 363 and to make the origin sensor 371 monitor more accurately, the first extension rod 363 is configured as an arc rod. It is understandable that the first extension rod 363 is configured as an arc rod so that it can have a certain width to facilitate the monitoring of the origin sensor 371 and can also better rotate the first extension rod 363 to the sensing position of the origin sensor 371.

[0084] Specifically, the locking portion 21 has a second extension rod 211 , and the second extension rod 211 can move to a sensing position of the bolt sensor 372 .

[0085] It is not difficult to understand that the control board 37 is installed on one side of the shell 1, the origin sensor 371 and the lock tongue sensor 372 are both inserted on the end face of the control board 37, and the first extension rod 363 and the second extension rod 211 both extend in a direction perpendicular to the end face of the control board 37.

[0086] In order to facilitate the parallel installation of the housing 1 and the control board 37 and avoid interference between the first extension rod 363 and the origin sensor 371 during operation, a plurality of support rods 11 can be fixed on the housing 1, and the other ends of the support rods 11 abut against the end surface of the control board 37.

[0087] Furthermore, the driving assembly 3 further includes a driving motor 38, and the rotation driving end of the driving motor 38 is at least circumferentially limitedly connected to the rotation driving part 31, so that the driving motor 38 can drive the rotation driving part 31 to operate. Specifically, the driving motor 38 can be set as a stepping motor, so as to facilitate the control of the rotation angle or time of the driving motor 38 driving the rotation driving part 31, so as to facilitate the monitoring of the positions of the rotation driving part 31 and the ratchet part 32.

[0088] It is worth noting that "the rotation drive unit 31 is installed at the shell 1" means that the rotation drive unit 31 is located at the position of the shell 1. Specifically, the rotation drive unit 31 can be directly rotatably installed on the shell 1. At this time, the drive motor 38 can be fixedly installed on the shell 1, and the rotation drive end of the drive motor 38 is circumferentially limited and connected to the rotation drive unit 31. There can also be a gap between the rotation drive unit 31 and the shell 1 (that is, not connected). For example, the drive motor 38 is fixedly installed on the shell 1, and the rotation drive end of the drive motor 38 extends into the shell 1 and is fixedly connected to the rotation drive unit 31 (circumferential and axial synchronous limit).

[0089] In summary, the specific operation mode of the locking device is as follows:

[0090] In the initial state, all locking parts 21 are in a locked state; the abutting force receiving surface 322 of the pawl part 32 abuts against the abutting surface 312 of the rotary drive part 31 under the action of the second elastic member 33, and is in an extended state, and the pawl part 32 is located between two adjacent transmission parts, and the first extension rod 363 is at the position of the origin sensor 371. It is not difficult to understand that, as a preferred embodiment, "the pawl part 32 is located between two adjacent transmission parts" means that the pawl part 32 is located at the midpoint of the line connecting the two transmission parts (for details, please refer to Figure 8 The position of the pawl portion 32, in this embodiment Figure 1-Figure 7 The initial position of the ratchet portion 32 is not shown). Of course, in other embodiments, the ratchet portion 32 may also be located only between the two transmission portions. In this case, when the ratchet portion 32 is controlled to rotate, the corresponding rotation angle can be synchronously adaptively adjusted to ensure that the ratchet portion 32 can run to the preset position.

[0091] See also Figures 1 to 7 When unlocking is required, one of the locking parts 21 is taken as an example (such as Figure 3When the locking portion 21 in the upper right corner of the middle part is rotated, the rotation driving portion 31 is driven by the driving motor 38 to rotate counterclockwise. During the rotation, when the side of the pawl portion 32 connected to the second elastic member 33 abuts against the first transmission portion 34, since the elastic strength of the first elastic member 22 is less than that of the second elastic member 33, and the first transmission portion 34 cannot move, the pawl portion 32 shrinks toward the contraction accommodating area 311 until the pawl portion 32 rotates 90° (or runs to the left side of the first force-bearing protrusion 343), and then the rotation driving portion 31 is driven by the driving motor 38 to rotate clockwise. During this process, the abutting force surface 322 of the pawl portion 32 always abuts against the abutting surface 312, thereby pushing the transmission rod 342 to rotate, and further driving its corresponding locking portion 21.

[0092] Understandably, when the need to drive Figure 3 When the locking part 21 at the upper left corner is unlocked, the driving motor 38 drives the rotation driving part 31 to rotate 180° counterclockwise (during this process, the pawl part 32 can pass over the second transmission part 35), and then rotates clockwise to push the second transmission part 35, further pushing the corresponding locking part 21 to unlock; when it is necessary to drive Figure 3 When the locking part 21 at the lower left corner is engaged, the driving motor 38 drives the rotating driving part 31 to rotate 270° counterclockwise and then drives it clockwise. Figure 3 When the locking portion 21 at the lower right corner is engaged, the rotation driving portion 31 can be directly driven to rotate clockwise, so that the pawl portion 32 drives the transmission portion corresponding to the locking portion 21 .

[0093] When the bolt sensor 372 detects that the locking part 21 is unlocked, the driving motor 38 drives the rotation driving part 31 to rotate counterclockwise again to restore the initial position. Of course, it is not difficult to understand that after rotating 90° counterclockwise, the clockwise rotation is also 90°, so in this case it is directly restored to the initial state without further adjustment.

[0094] In addition, it should be understood that in the above solution, the origin sensor 371 is used to determine whether it has returned to the initial state, and then the drive motor 38 is controlled to stop, thereby making the monitoring result more accurate.

[0095] In other embodiments, only the lock tongue sensor 372 may be provided to determine whether the entire device is restored to the initial state, thereby reducing the investment in sensors and lowering costs.

[0096] In other embodiments, it is also possible to directly not set up a sensor, and to monitor the angle of rotation of the rotary drive unit 31 controlled by the drive motor 38 itself to determine whether it has returned to the initial state or the real-time position, so as to reduce the investment in sensors and reduce costs. In this state, preliminary calibration can be achieved after the entire locking device is assembled. For example, the origin position of the rotary drive unit 31, the ratchet portion 32 and the induction block 36 can be directly located during assembly; afterwards, after the locking device is assembled, the initial data of the rotary drive unit 31 rotating for one circle, such as the time required for one circle (i.e., 360°), is pre-monitored, and the rotary drive unit 31 is driven to operate based on the initial data to determine the actual position of the rotary drive unit 31 during the rotation process, and after the corresponding locking unit 21 is unlocked, the rotary drive unit 31 and the ratchet portion 32 are driven to operate to the origin position, and specifically, the same time and angle as the unlocking process can be used.

[0097] Embodiment 2

[0098] See also Figures 8 to 10 Based on the above-mentioned embodiment 1, the difference of this embodiment is that: the second transmission part 35 includes a third force-bearing protrusion 353 and a driving slider 354, the third force-bearing protrusion 353 is fixedly connected to its corresponding locking part 21, the driving slider 354 is slidably installed on the shell 1, the third force-bearing protrusion 353 is provided with a first guide inclined surface 3531, and one side of the driving slider 354 is provided with a second guide inclined surface 3541 corresponding to and abutting against the first guide inclined surface 3531.

[0099] Specifically, the driving slider 354 is installed in the guide groove, and the sliding direction of the driving slider 354 is perpendicular to the sliding direction of the third force-bearing protrusion 353. It is easy to understand that the pawl portion 32 slides through the driving slider 354, further driving the third force-bearing protrusion 353 and the corresponding locking portion 21 to slide and unlock.

[0100] It is worth noting that, based on the above-mentioned first and second embodiments, the first embodiment can make the structure more compact and can be provided without the driving slider 354, thereby reducing the manufacturing cost and product size, while the second embodiment can be more labor-saving and can avoid deformation of the stressed structure, especially when the stressed structure is set as an injection molded part. In order to verify the effect and further verify the labor-saving situation, the details are as follows:

[0101] See also Figure 3 (Example 1), the force analysis of this scheme is as follows:

[0102] The force analysis of the locking part 21 shows that since the locking part 21 moves to the left, the resultant force of the locking part 21 in the horizontal direction is to the left, that is,

[0103] F4*cosJ1≥f4+G1

[0104]

[0105] Among them, the friction force of the shell 1 on the locking part 21 is f4; the driving force of the driving motor 38 is F4; the elastic force of the first elastic member 22 on the locking part 21 is G1, the angle between the force of the pawl part 32 on the locking part 21 and the horizontal plane is J1, and 0<J1<90°.

[0106] See also Figures 8 to 10 (Example 2), a stress analysis of this solution shows that:

[0107] Performing horizontal mechanical calculation on the locking part 21, since the locking part 21 moves to the left, it means that the horizontal resultant force is to the left, that is: F1*cosJ2≥G1+f3+f1*cosJ2;

[0108] In the vertical direction, the driving force causes the slider to move downward, which means that the resultant force in the vertical direction is downward, that is: F0≥f1*sinJ2+f2+F1*cosJ2≥f1*sinJ2+f2+G1+f3+f1*cosJ2;

[0109] After simplification: F0≥f1*(sinJ2+cosJ2)+f2+f3+G1

[0110] Among them, the friction force of the locking part 21 on the driving slider 354 is f1; the friction force of the shell 1 on the driving slider 354 is f2; the friction force of the shell 1 on the locking part 21 is f3; the driving force of the driving motor 38 is F0; the positive pressure between the driving slider 354 and the locking part 21 is F1, and the supporting force of the shell 1 on the locking part 21 is N1; the angle between the acting inclined surface (the second guide inclined surface 3541) between the driving slider 354 and the locking part 21 and the horizontal plane is J2, and 0<J2<90°; the elastic force of the first elastic member 22 on the locking part 21 is G1.

[0111] As can be seen from the above, since 0<J2<90°, 0<J1<90°, and self-locking cannot occur, when the friction force f of the system (friction force f can be reduced by lubrication, material selection, etc., and the influence of friction force can be ignored) is much smaller than the spring elastic force G1, the driving force in the second embodiment is greater than G1, and the driving force in the first embodiment is greater than It can be driven, that is, the driving force required by the first embodiment is greater than that of the second embodiment.

[0112] Embodiment 3

[0113] See also Fig.11 Based on the above-mentioned embodiment 1, the difference of this embodiment is that the first transmission part 34 includes a transmission rod 342 and a first force-bearing protrusion 343, the transmission rod 342 is rotatably installed on the shell 1, and one end is connected to its corresponding locking part 21, and the other end is fixedly provided with the first force-bearing protrusion 343.

[0114] Furthermore, in this embodiment, the transmission rod 342 is fixedly connected to its corresponding locking portion 21. Of course, in other embodiments, the transmission rod 342 may also be rotatably connected or clamped to the locking portion 21. When the first force-bearing protrusion 343 of the transmission rod 342 is stressed, the transmission rod 342 can be driven to swing, thereby driving the locking portion 21 to move (different from the first embodiment, the specific movement mode in this embodiment is swinging) to unlock.

[0115] It is easy to understand that the first transmission part 34 and the second transmission part 35 can be set to a variety of structures, which can receive force at one end and transfer the force to the corresponding locking part 21, thereby driving the corresponding locking part 21 to move and unlock.

[0116] Embodiment 4

[0117] Based on the above-mentioned Embodiment 1, Embodiment 2 and Embodiment 3, the present application further provides a control method of a locking device, comprising the following steps:

[0118] The pawl portion 32 is driven by the rotary drive portion 31 to rotate along the first direction to a preset position, and the pawl portion 32 is retracted toward the central axis direction of the rotary drive portion 31 during the operation to continue rotating over the transmission portion of the drive assembly 3;

[0119] The pawl portion 32 is driven to rotate along the second direction by the rotation driving portion 31 , and the pawl portion 32 abuts against the rotation driving portion 31 during the operation to drive the locking portion 21 to move.

[0120] Furthermore, the following steps are also included:

[0121] Assemble the locking device and make the rotation driving part 31 and the pawl part 32 be at the origin position;

[0122] After the locking device is assembled, the rotation driving part 31 is driven to rotate one circle, and the initial data of one circle of rotation is recorded;

[0123] Based on the initial data, the rotation driving part 31 is driven to operate to determine the actual position of the rotation driving part 31 during the rotation process, and after the corresponding locking part 21 is unlocked, the rotation driving part 31 and the pawl part 32 are driven to operate along the first direction to the origin position.

[0124] It is worth noting that the initial data includes the time required to drive the rotation driving portion 31 and the ratchet portion 32 to rotate one circle.

[0125] Furthermore, the following steps are also included:

[0126] The origin positions of the rotation driving portion 31 and the pawl portion 32 are monitored by the origin sensor 371;

[0127] and / or,

[0128] The unlocked position of the locking part 21 is monitored by the bolt sensor 372 .

[0129] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A locking device, characterized in that: include: Housing (1); A plurality of locking assemblies (2), each of the locking assemblies (2) comprising a locking portion (21) and a first elastic member (22) for driving the locking portion (21) to be in a locked state; A driving assembly (3) comprising a transmission portion, a rotation driving portion (31) and a ratchet portion (32); The transmission part is arranged in one-to-one correspondence with the locking part (21) and extends from the locking part (21) to the rotation driving part (31); the rotation driving part (31) is mounted on the housing (1); the pawl part (32) is rotatably mounted on the rotation driving part (31) and is connected to the rotation driving part (31) via a second elastic member (33); When the rotary drive portion (31) rotates in a first direction, the ratchet portion (32) can contract in a radial direction to pass over the transmission portion and continue to rotate; When the rotary drive portion (31) rotates in the second direction, the ratchet portion (32) can push the transmission portion to move, thereby driving the locking portion (21) to move; The first direction is arranged in opposite directions to the second direction, and the elastic strength of the first elastic member (22) is greater than the elastic strength of the second elastic member (33).

2. A locking device according to claim 1, characterized in that: The rotary drive portion (31) comprises a contraction accommodating area (311) and an abutment surface (312); The ratchet portion (32) is rotatably mounted at a position of the shrinkage accommodating area (311) close to the abutment surface (312); The second elastic member (33) is always in a stretched state to drive the ratchet portion (32) to abut against the abutting surface (312).

3. A locking device according to claim 1 or 2, characterized in that: Each of the locking assemblies (2) comprises two locking parts (21); the two locking parts (21) are arranged opposite to each other and connected via the first elastic member (22); Of the two locking parts (21), the transmission part corresponding to one of the locking parts (21) is set as a first transmission part (34), and the transmission part corresponding to the other locking part (21) is set as a second transmission part (35).

4. A locking device according to claim 3, characterized in that: The first transmission part (34) comprises a first protrusion (341), a transmission rod (342) and a first force-bearing protrusion (343); the first protrusion (341) is fixedly arranged on a locking part (21) corresponding thereto; the transmission rod (342) is rotatably mounted on the housing (1), with one end abutting against the first protrusion (341) and the other end being fixedly arranged with the first force-bearing protrusion (343); or, The first transmission part (34) comprises a transmission rod (342) and a first force-bearing protrusion (343); the transmission rod (342) is rotatably mounted on the housing (1), one end of which is connected to its corresponding locking part (21), and the other end of which is fixedly provided with the first force-bearing protrusion (343).

5. A locking device according to claim 4, characterized in that: The second transmission part (35) comprises a second protrusion (351) and a second force-bearing protrusion (352); the second protrusion (351) is fixedly connected to its corresponding locking part (21), and the side away from the locking part (21) is fixedly connected to the second force-bearing protrusion (352); or, The second transmission part (35) comprises a third force-bearing protrusion (353) and a driving slider (354), wherein the third force-bearing protrusion (353) is fixedly connected to its corresponding locking part (21), and the driving slider (354) is slidably installed on the shell (1), and a first guiding inclined surface (3531) is provided on the third force-bearing protrusion (353), and a second guiding inclined surface (3541) corresponding to and abutting against the first guiding inclined surface (3531) is provided on one side of the driving slider (354).

6. A locking device according to claim 1, characterized in that: The driving assembly (3) further comprises a sensing block (36) and a control board (37); The control board (37) is connected to an origin sensor (371), and the origin sensor (371) is used to monitor the origin position of the sensing block (36), and / or the control board (37) is connected to a lock tongue sensor (372), and the lock tongue sensor (372) is used to monitor the unlocking position of the locking portion (21).

7. A locking device according to claim 6, characterized in that: The induction block (36) is fixedly mounted on one end of the rotary drive portion (31) extending out of the housing (1); The origin sensor (371) and the lock tongue sensor (372) are both plugged into the control board (37).

8. A control method, characterized in that: The locking device as claimed in any one of claims 1 to 7 comprises the following steps: The pawl portion (32) is driven by the rotary drive portion (31) to rotate in a first direction to a preset position, and the pawl portion (32) is contracted toward the central axis direction of the rotary drive portion (31) during the operation to continue rotating beyond the transmission portion of the drive assembly; The pawl portion (32) is driven to rotate in the second direction by the rotary drive portion (31), and the pawl portion (32) abuts against the rotary drive portion (31) during the operation to drive the locking portion (21) to move.

9. The control method according to claim 8, characterized in that: The following steps are also included: Assembling a locking device and placing the rotary drive portion (31) and the ratchet portion (32) at an origin position; When the locking device is assembled, the rotation driving part (31) is driven to rotate one circle, and initial data of one circle of rotation is recorded; Based on the initial data, the rotation driving part (31) is driven to operate so as to determine the actual position of the rotation driving part (31) during the rotation process, and after the corresponding locking part (21) is unlocked, the rotation driving part (31) and the ratchet part (32) are driven to operate along the first direction to the origin position.

10. The control method according to claim 8, characterized in that: The following steps are also included: Monitoring the origin positions of the rotation drive unit (31) and the ratchet unit (32) by means of an origin sensor (371); and / or, The unlocking position of the locking portion (21) is monitored by a lock tongue sensor (372).

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