A door lock system integrating positioning and unlocking

Abstract

The present invention discloses a door lock system that integrates positioning and unlocking, comprising a door lock body and an unlocking and positioning linkage device that are separately arranged; a lock hook is rotatably provided in the door lock body, a lock hole is provided on the door lock body, and the lock hook and the door hook are locked and matched; an unlocking assembly is provided in the door lock body, the unlocking assembly includes a first unlocking block, and the first unlocking block cooperates with the lock hook stop; the unlocking and positioning linkage device includes a housing, a driving assembly, a push rod and a positioning rod, and the driving assembly drives the push rod and the positioning rod to extend and retract relative to the housing through the linkage assembly. The present invention has the following advantages and effects: by adopting the method of separately arranged door lock body and unlocking and positioning linkage device, the door lock body that does not require electrical connection can be installed on the rotating component, and the electric control device that requires electrical connection can be installed on the fixed component, thereby avoiding wire entanglement and improving safety. In addition, the positioning and unlocking processes are successively linked and matched through the linkage assembly, achieving the effect of rapid rotation-stopping positioning and automatic unlocking.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to a door lock system integrating positioning and unlocking. Background Art

[0002] Conventional electronic door locks cannot be installed on rotating components. Because the electronic control unit is connected to wires, when the rotating component rotates at high speed, installing a conventional electronic door lock on the rotating component can cause the wires to become tangled. Furthermore, functions such as electronic detection cannot be implemented. Conventional door locks installed on rotating components can only be manually unlocked with a push-button mechanism. Therefore, there is an urgent need for a door lock structure with separate locking and control components that can automatically locate the unlocking position and then automatically unlock the door. Summary of the Invention

[0003] The purpose of the present invention is to provide a door lock system integrating positioning and unlocking, which has the effects of rapid positioning and automatic unlocking.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a door lock system integrating positioning and unlocking, comprising a door lock body and an unlocking and positioning linkage device which are separately arranged; a lock hook is rotatably provided in the door lock body, a lock hole for inserting the door hook is opened on the door lock body, and the lock hook and the door hook are locked together;

[0005] An unlocking assembly is also provided in the door lock body, and the unlocking assembly includes a first unlocking block slidably provided on the door lock body, and the first unlocking block cooperates with the lock hook stopper;

[0006] The unlocking and positioning linkage device includes a housing, a driving assembly, a push rod and a positioning rod. The push rod and the positioning rod are both slidably arranged on the housing. The driving assembly drives the push rod and the positioning rod to extend and retract relative to the housing through the linkage assembly. When the push rod is extended, it pushes and cooperates with the first unlocking block.

[0007] When the positioning rod extends out of the shell and is inserted into the blind hole, the linkage assembly drives the push rod to push the first unlocking block to move, so that the first unlocking block is away from the lock hook, and the lock hook can rotate to unlock the door hook.

[0008] By adopting the above technical solution, during assembly, the door lock body is installed on the rotating component, the unlocking and positioning linkage device is installed on the fixed component, and the door hook is correspondingly installed on the door body of the rotating component. When the door is unlocked, the driving assembly drives the positioning rod to extend into the housing and abut against the surface of the rotating component, and the rotating component continues to rotate. When the positioning rod corresponds to the blind hole of the rotating component, it can be inserted and positioned in the blind hole under the action of the driving assembly, so that the rotating component stops rotating. Then the driving assembly drives the push rod to extend out of the housing through the linkage assembly, and the front end of the push rod pushes the first unlocking block to move into the door lock body, so that the first unlocking block no longer cooperates with the lock hook stop, and the lock hook can rotate toward the lock hole to unlock. In this way, the positioning and unlocking processes of the rotating component can be realized in turn. The door lock body and the unlocking positioning linkage device are separated. Compared with the integrated one in the prior art, the door lock body that does not require electrical connection can be installed on the rotating component, and the electronic control device that requires electrical connection can be installed on the fixed component, which avoids wire entanglement and improves safety. The positioning and unlocking processes are linked and coordinated in turn to achieve rapid rotation stopping and unlocking.

[0009] The present invention is further configured as follows: the linkage assembly includes a transmission block, the transmission block is integrally formed with a first rack and a second rack, the driving assembly includes a first transmission assembly and a driving motor, the first transmission assembly is meshed with the first rack, and the driving motor drives the transmission block to move in the shell through the first transmission assembly; the second rack is transmitted to the push rod through the second transmission assembly; and the positioning rod is installed on the transmission block.

[0010] By adopting the above technical solution, when the drive motor is started, the drive motor drives the transmission block to move through the meshing action of the first transmission assembly and the first rack, thereby driving the positioning rod to move. When the transmission block moves, the second rack also moves accordingly, and the push rod can be driven to move through the transmission cooperation between the second rack and the second transmission assembly.

[0011] The present invention is further configured as follows: the length of the second rack is set to half of the first rack, the second transmission assembly includes a double gear and a third rack, the double gear is arranged in the housing through the rotation of the gear shaft, and the third rack is integrally formed on the side wall of the push rod; the double gear is respectively engaged with the second rack and the third rack, and an idle stroke is provided between the second rack and the double gear.

[0012] By adopting the above technical solution, when the drive assembly drives the transmission block to move, the transmission block drives the positioning post to extend out of the housing and abut against the surface of the rotating component during the first half of its movement. Due to the idle travel between the second rack and the double gear, the second rack does not drive the double gear to rotate during this process. When the positioning rod is correspondingly inserted into the blind hole, the transmission block is further displaced by the drive assembly, causing the second rack to mesh with the double gear. The rotation of the double gear synchronously drives the push rod out of the housing through the third rack. In this way, the positioning and unlocking processes can be carried out in an orderly manner.

[0013] The present invention is further configured as follows: the positioning rod is elastically connected to the transmission block via an elastic member, and the elastic member causes the positioning rod to always have a tendency to move away from the transmission block.

[0014] By adopting the above technical solution, when the positioning rod is initially extended and abuts against the surface of the rotating component, the elastic part is compressed. When the blind hole of the rotating component rotates to the position of the positioning rod, the positioning rod can be extended under the elastic force of the elastic part and inserted into the blind hole to achieve positioning.

[0015] The present invention is further configured as follows: the unlocking and positioning linkage device includes a position detection component, the position detection component includes a first microswitch, a second microswitch and a third microswitch; a first protrusion and a second protrusion are provided on the transmission block, and a stop block is provided on the side wall of the positioning rod. The first microswitch is positioned and matched with the first protrusion, the third microswitch is positioned and matched with the second protrusion, and the second microswitch is positioned and matched with the stop block.

[0016] By adopting the above technical solution, in the initial state, the positioning rod is retracted into the housing. At this time, the second protrusion corresponds to the contact of the third microswitch, and the transmission block and the positioning rod retract into position relative to the housing. When the rotating component (flange) needs to be positioned, the drive assembly is started, and the drive assembly drives the transmission block and the positioning rod to gradually extend out of the housing until the outer end of the positioning rod contacts the surface of the rotating component. The first protrusion corresponds to the contact of the first microswitch, and the position of the transmission block can be detected and a signal fed back to the remote end, causing the rotating component to rotate further. At the same time, the drive assembly drives the transmission block to move further in the direction in which the positioning rod extends, causing the elastic member to be compressed. During this process, the elastic member gradually accumulates force. When the blind hole of the rotating component rotates to correspond to the positioning rod, the positioning rod extends and inserts into the blind hole under the elastic force of the elastic member, and the rotating component can be positioned. At this time, the stopper of the positioning rod acts on the second microswitch to feed back a signal to the remote end. In this way, the blind hole positioning on the rotating component can be achieved, which is suitable for installing the flange in a position that cannot be directly seen, thereby achieving rapid positioning.

[0017] The present invention is further configured as follows: a sliding groove is provided on the side wall of the transmission block, and the stopper slides in the sliding groove.

[0018] By adopting the above technical solution, when the positioning rod extends relative to the transmission block under the elastic force of the elastic part, the block slides along the slide groove, and the slide groove can play a better limiting role on the block and the positioning rod as a whole, so that the positioning rod has higher linearity when moving, thereby improving the positioning accuracy. In addition, it can also play an anti-slip limiting role on the slide groove to a certain extent.

[0019] The present invention is further configured as follows: the unlocking and positioning linkage device includes a position detection component, the position detection component includes a fixing frame, a circuit board arranged on the fixing frame, and a photoelectric signal detection element arranged on the circuit board, the photoelectric signal detection element includes a first position detection component and a second position detection component, the first position detection component is positioned and matched with the transmission block, and the second position detection component is positioned and matched with the positioning rod.

[0020] By adopting this technical solution, when the corresponding position of the transmission block blocks the first-point detection element, the front end of the positioning rod contacts the surface of the rotating component, the elastic element begins to compress, and the first-point detection element sends feedback to the remote end. When the front end of the positioning rod corresponds to the blind hole, the elastic element pushes the positioning rod forward to insert it into the blind hole. When the stop block blocks the second-point detection element, a signal is fed back to the remote end.

[0021] The present invention is further configured as follows: a first return spring is provided in the door lock body, and the first return spring drives the first unlocking block to always have a movement tendency of extending out of the door lock body; the first unlocking block is provided with an avoidance notch and a blocking portion, and when the first return spring is in an extended state, the blocking portion cooperates with the lock hook stop, and the lock hook is in a locked state; when the first return spring is in a compressed state, the avoidance notch cooperates with the lock hook avoidance, and the lock hook is in an unlocked state.

[0022] By adopting the above technical solution, in the initial state, the bottom of the lock hook abuts against the stopper of the first unlocking block, preventing the lock hook from rotating freely and locking it. When unlocking, the push rod pushes the first unlocking block into the door lock body, causing the stopper and the lock hook to move away. The lock hook is aligned with the avoidance gap. At this time, the lock hook is no longer blocked by the stopper and can be rotated to unlock. When the door hook is inserted into the lock hook and the push rod is retracted into the housing, the first unlocking block automatically moves outward from the door lock body under the elastic force of the first return spring, causing the stopper to re-position below the lock hook to form a stop for the lock hook.

[0023] The present invention is further configured as follows: the unlocking assembly also includes a second unlocking block arranged in the door lock body, the second unlocking block and the first unlocking block are matched through a guide surface transmission, the guide surface is arranged on the second unlocking block, the guide surface drives the first unlocking block to move into the door lock body, and the unlocking directions of the first unlocking block and the second unlocking block are perpendicular; a second return spring is provided between the second unlocking block and the door lock body, the second return spring drives the second unlocking block to always have a movement tendency to extend out of the door lock body; the lock hook is provided with a return torsion spring, the return torsion spring drives the lock mouth of the lock hook to always have a movement tendency toward the lock hole.

[0024] By adopting this technical solution, in addition to electronically unlocking the door using the first unlocking block, manual unlocking can also be achieved by pressing the second unlocking block. The second unlocking block, via a guide surface, drives the first unlocking block relative to the lock hook, causing the first unlocking block to move into the door lock body and unlock the lock hook. Because the unlocking directions of the first and second unlocking blocks are perpendicular, the first unlocking block can be driven from different directions to unlock the door. This allows for indirect unlocking via the second unlocking block when the first unlocking block's unlocking position is blocked and cannot be unlocked directly. This multi-directional unlocking method provides ease of use and a double guarantee.

[0025] The present invention is further configured as follows: a positioning structure is provided between the first unlocking block and the second unlocking block, the positioning structure includes a hook and a positioning groove provided on the second unlocking block, the first unlocking block is provided with a positioning portion, the hook and the positioning portion cooperate to stop along the direction in which the second unlocking block extends out of the door lock body, and the positioning portion is correspondingly embedded in the positioning groove; the blocking portion of the first unlocking block is provided with a guide inclined surface, the upper surface of the blocking portion is provided with a stop surface, and the guide inclined surface is adjacent to the stop surface.

[0026] By adopting the above technical solution, when the second unlocking block is pressed into the door lock body, the door hook may be pressed at the same time as the second unlocking block, and the door hook will press against the lock hook, making it impossible to unlock. The above phenomenon can be avoided by the action of the guiding slope. Under the elastic action of the second return spring, the second unlocking block can automatically move back to the outside of the door lock body, and then the first unlocking block moves outward under the elastic action of the first return spring and automatically resets.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. The door lock body and unlocking positioning linkage device are separated. Compared with the integrated arrangement in the prior art, the door lock body (which does not require electrical connection) can be installed on the rotating component, while the electronic control device (which requires electrical connection) can be installed on the fixed component, avoiding wire entanglement and thus improving safety. The positioning and unlocking processes are coordinated in sequence by the linkage components, achieving the effect of rapid anti-rotation positioning and automatic unlocking.

[0029] 2. The first and second racks are integrally formed on the transmission block, and an idle travel is provided between the second rack and the double gear. This allows the positioning and unlocking processes to proceed sequentially.

[0030] 3. By setting a position detection component in the unlocking and positioning linkage device, feedback signals can be implemented to achieve accurate positioning of blind holes on rotating parts. It is suitable for installing flanges in places that are not directly visible, thereby achieving rapid positioning;

[0031] 4. The micro switch is used for position detection, which has the effect of high positioning accuracy;

[0032] 5. The use of photoelectric signal detection elements for site detection has a more flexible and wider range of applications and higher detection sensitivity;

[0033] 6. A positioning structure is set between the first unlocking block and the second unlocking block, so that both are in a semi-unlocked state after unlocking. The first unlocking block and the second unlocking block will not automatically reset under the elastic force of the first return spring and the second return spring, preventing the feedback signal time from being short and the main control device from not being able to detect it. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structural relationship of Example 1.

[0035] Figure 2 It is an exploded view of the door lock body of Example 1.

[0036] Figure 3 It is a schematic diagram of the internal structural relationship of the door lock body of Example 1, and the lock hook is in a locked state.

[0037] Figure 4 It is a schematic diagram of the internal structural relationship of the door lock body of Example 1, and the lock hook is in the unlocked state.

[0038] Figure 5 This is a schematic diagram of the matching relationship between the first unlocking block and the second unlocking block in Example 1.

[0039] Figure 6 It is a schematic diagram of the structural relationship of the unlocking and positioning linkage device of Example 1.

[0040] Figure 7 It is an exploded view of the unlocking and positioning linkage device of Example 1.

[0041] Figure 8 Schematic diagram of the structural relationship of the site detection component of Example 1.

[0042] Figure 9 It is a cross-sectional view of the transmission block and the positioning rod of Example 1.

[0043] Figure 10 It is a schematic diagram of the structural relationship of the site detection component of Example 2.

[0044] Figure 11 It is a schematic diagram of the structural relationship between the transmission block and the positioning rod of Example 2.

[0045] In the figure: 1. Door lock body; 11. Lock hook; 12. Rotating shaft; 13. Lock hole; 14. First unlocking block; 141. Avoidance gap; 142. Stopper; 143. First return spring; 144. First limiting hole; 145. Positioning part; 146. Guide slope; 15. Second unlocking block; 151. Guide surface; 152. Second return spring; 153. Second limiting hole; 154. Positioning groove; 155. Hook; 16. Return torsion spring; 2. Unlocking and positioning linkage device; 21. Housing; 211. First extension hole; 212. Second extension hole; 3. Push rod; 4. Positioning rod; 41. Stopper; 5. Transmission block; 51. First rack; 52. Second rack; 53. Slide groove ;54. First protrusion;55. Second protrusion;6. Drive assembly;61. First transmission assembly;611. Reduction gear set;612. Transmission gear;62. Drive motor;63. Second transmission assembly;631. Double gear;6311. First pinion;6312. Second pinion;632. Third rack;7. Extension spring;8. Position detection assembly;81. Fixed bracket;82. Circuit board;821. Terminal;83. Photoelectric signal detection element;831. First position detection part;832. Second position detection part;84. First micro switch;85. Second micro switch;86. Third micro switch;9. Rotating component;91. Blind hole;10. Door hook. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the accompanying drawings.

[0047] A door lock system that integrates positioning and unlocking, such as Figure 1-2 and Figure 6-7 As shown, the door lock comprises a separate door lock body 1 and an unlocking and positioning linkage 2, which is electrically connected to the main control unit of the appliance via a wire. A U-shaped lock hook 11 is provided within the door lock body 1, which rotates via a shaft 12. A lock hole 13 is provided on the door lock body 1 for inserting the door hook 10, and the lock hook 11 and the door hook 10 engage in a locking engagement. During assembly, the door lock body 1 is mounted on the rotating component 9, the unlocking and positioning linkage 2 is mounted on the fixed component, and the door hook 10 is mounted on the door body of the rotating component 9. The unlocking and positioning linkage device 2 includes a shell 21, a driving component 6 arranged in the shell 21, a push rod 3 and a positioning rod 4. The push rod 3 and the positioning rod 4 are both slidably arranged in the shell 21. The shell 21 is provided with a first extension hole 211 for the push rod 3 to extend, and a second extension hole 212 for the positioning rod 4 to extend. The extension directions of the two are perpendicular. The driving component 6 drives the push rod 3 and the positioning rod 4 to extend and retract relative to the shell 21 through the linkage component. When the push rod 3 is extended, it pushes and cooperates with the first unlocking block 14 arranged in the door lock body 1.

[0048] like Figure 2-4As shown, an unlocking assembly is provided in the door lock body 1, and the unlocking assembly includes a first unlocking block 14 slidably arranged on the door lock body 1, the bottom of the first unlocking block 14 cooperates with the lock hook 11 stop, the first unlocking block 14 is provided with an avoidance notch 141 and a stopper 142, and a first return spring 143 is provided in the door lock body 1, and the inner end of the first unlocking block 14 is provided with a first limiting hole 144, one end of the first return spring 143 is correspondingly embedded in the first limiting hole 144, and the first return spring 143 drives the first unlocking block 14 to always have a movement tendency to extend out of the door lock body 1; when the first return spring 143 is in an extended state, the stopper 142 cooperates with the bottom stop of the lock hook 11, and the lock hook 11 is in a locked state; when the first return spring 143 is in a compressed state, the avoidance notch 141 avoids and cooperates with the lock hook 11, and the lock hook 11 is in an unlocked state.

[0049] like Figure 2-5 As shown, the unlocking assembly also includes a second unlocking block 15 provided in the door lock body 1. The second unlocking block 15 and the first unlocking block 14 are matched with each other through a guide surface 151. The guide surface 151 is provided on the second unlocking block 15. The guide surface 151 drives the first unlocking block 14 to move into the door lock body 1 along the axial direction parallel to the rotating shaft 12, and the unlocking directions of the first unlocking block 14 and the second unlocking block 15 are perpendicular; a second return spring 152 is provided between the second unlocking block 15 and the door lock body 1. A second limiting hole 153 is provided at the inner end of the second unlocking block 15, and the bottom end of the second return spring 152 is correspondingly limited in the second limiting hole 153. The second return spring 152 drives the second unlocking block 15 to always have a movement tendency to extend out of the door lock body 1; a return torsion spring 16 is sleeved on the rotating shaft 12, and the two ends of the return torsion spring 16 are against the door lock body 1, and the middle part of the return torsion spring 16 is against the lock hook 11. The return torsion spring 16 drives the lock mouth of the lock hook 11 to always have a movement tendency toward the lock hole 13.

[0050] like Figure 3-5 As shown, a positioning structure is provided between the first unlocking block 14 and the second unlocking block 15, and the positioning structure includes a hook 155 and a positioning groove 154 provided on the second unlocking block 15, and the first unlocking block 14 is provided with a positioning portion 145, and the hook 155 cooperates with the positioning portion 145 to stop along the direction in which the second unlocking block 15 extends out of the door lock body 1, and the positioning portion 145 is correspondingly embedded in the positioning groove 154; the blocking portion 142 of the first unlocking block 14 is provided with a guide slope 146, and the upper surface of the blocking portion 142 is provided as a stop surface, and the guide slope 146 is provided adjacent to the stop surface.

[0051] In the initial state, the bottom of the lock hook 11 abuts against the stopper 142 of the first unlocking block 14, preventing the lock hook 11 from rotating freely and locking it. To unlock, the push rod 3 pushes the first unlocking block 14 into the door lock body 1, causing the stopper 142 to move away from the lock hook 11. The lock hook 11 then corresponds to the avoidance notch 141. At this point, the lock hook 11 is no longer blocked by the stopper 142 and can be rotated and unlocked. When the door hook 10 is inserted into the lock hook 11 and the push rod 3 is retracted into the housing 21, the first unlocking block 14 automatically moves outward from the door lock body 1 under the elastic force of the first return spring 143, causing the stopper 142 to reposition below the lock hook 11 to form a stop for the lock hook 11.

[0052] In addition to electronic unlocking via the first unlocking block 14, manual unlocking can also be achieved via the second unlocking block 15. The second unlocking block 15, via its guide surface 151, forces the first unlocking block 14 to move relative to the hook 11, causing it to move into the door lock body 1 and unlock the hook 11. Because the unlocking directions of the first and second unlocking blocks 14, 15, are perpendicular, the first unlocking block 14 can be driven from different directions to unlock the door. This allows for indirect unlocking via the second unlocking block 15 when the first unlocking block 14 is blocked and cannot be unlocked directly. This multi-directional unlocking method provides ease of use and a double guarantee.

[0053] When the second unlocking block 15 is pressed into the door lock body 1, the door hook 10 may be pressed at the same time as the second unlocking block 15, which will cause the door hook 10 to press against the lock hook 11, making it impossible to unlock. However, the above phenomenon can be avoided by the action of the guiding slope 146. The second unlocking block 15 is pressed inward, and under the action of the guiding slope 151, the first unlocking block 14 is displaced into the door lock body 1. When the positioning portion 145 corresponds to the positioning groove 154, the first unlocking block 14 is pushed to move a certain distance outward from the door lock body 1 under the elastic force of the first return spring 143, so that the positioning portion 145 is correspondingly embedded in the positioning groove 154. The second unlocking block 15 is hooked to the side wall of the positioning portion 145 under the elastic force of the second return spring 152. In this way, the first unlocking block 14 and the second unlocking block 15 are both positioned in the unlocking position, and the guiding slope 146 is just aligned with the first unlocking block 14. It should be located on the end face of the lock hook 11. When the pressure on the second unlocking block 15 and the door hook 10 is released, the lock hook 11 rotates outward from the lock hole 13 under the elastic force of the second return torsion spring 16, so that its bottom contacts the guide slope 146, and the first unlocking block 14 moves a certain distance into the door lock body 1. The positioning portion 145 is away from the positioning groove 154, and the hook portion 155 of the second unlocking block 15 is also disengaged from the positioning portion 145. Under the elastic force of the second return spring 152, the second unlocking block 15 can automatically move outward from the door lock body 1 to reset, and then the first unlocking block 14 moves outward under the elastic force of the first return spring 143 to automatically reset.

[0054] like Figure 6 and Figure 7 As shown, the linkage assembly includes a transmission block 5 that is slidably disposed within the housing 21. A first rack 51 and a second rack 52 are integrally formed on both sides of the transmission block 5. The length of the second rack 52 is set to half that of the first rack 51, and the first rack 51 and the second rack 52 are flush with the ends of the push rod 3. The drive assembly 6 includes a first transmission assembly 61 and a drive motor 62. The first transmission assembly 61 includes a reduction gear set 611 and a transmission gear 612 that cooperate in transmission. The reduction gear set 611 is in transmission cooperation with the output gear of the output shaft of the drive motor 62. The first rack 51 is meshed with the transmission gear 612. The drive motor 62 drives the transmission block 5 to move within the housing 21 through the reduction gear set 611 and the transmission gear 612. The second rack 52 is coupled to the push rod 3 via a second transmission assembly 63. The second transmission assembly 63 includes a double gear 631 and a third rack 632. The double gear 631 is rotatably mounted within the housing 21 via a gear shaft, and the third rack 632 is integrally formed with the side wall of the push rod 3. A first pinion 6311 of the double gear 631 meshes with the second rack 52, and a second pinion 6312 of the double gear 631 meshes with the third rack 632. An idle travel is provided between the second rack 52 and the first pinion 6311.

[0055] like Figure 7 and Figure 9 As shown, the positioning rod 4 is elastically connected to the transmission block 5 via an elastic member. One end of the positioning rod 4 extends into the hollow transmission block 5. The elastic member is configured as an extension spring 7. The elastic member ensures that the positioning rod 4 always has a tendency to move away from the transmission block 5. The side wall of the positioning rod 4 is provided with a stopper 41, and the side wall of the transmission block 5 is provided with a slide groove 53. The stopper 41 slides within the slide groove 53. When the positioning rod 4 extends relative to the transmission block 5 under the elastic force of the extension spring 7, the stopper 41 slides along the slide groove 53. The slide groove 53 effectively limits the stopper 41 and the positioning rod 4 as a whole, ensuring that the positioning rod 4 has a high degree of linearity when moving, thereby improving positioning accuracy.

[0056] like Figure 6-8As shown, the unlocking and positioning linkage device 2 includes a position detection assembly 8, which includes a fixing frame 81, a circuit board 82 mounted on the fixing frame 81, and a photoelectric signal detection element 83 mounted on the circuit board 82. A terminal 821 is provided at the end of the circuit board 82. The photoelectric signal detection element 83 includes a first position detection member 831 and a second position detection member 832. A first protrusion 54 is provided on the side wall of the transmission block 5. The first position detection member 831 is positioned and engaged with the first protrusion 54 of the transmission block 5, and the second position detection member 832 is positioned and engaged with the stopper 41 of the positioning rod 4. When the first protrusion 54 of the transmission block 5 blocks the first position detection member 831, the front end of the positioning rod 4 contacts the surface of the rotating component 9, the extension spring 7 begins to be compressed, and the first position detection member 831 is fed back to the distal end. When the front end of the positioning rod 4 corresponds to the blind hole 91, the extension spring 7 can push the positioning rod 4 forward to insert it into the blind hole 91. The block 41 blocks the second position detection component 832, and the signal can be fed back to the remote end.

[0057] The basic working principle of this embodiment is as follows: in the initial state (door closed state), the door hook 10 installed on the door body is inserted into the lock hole 13, locked with the lock hook 11, and the rotating component 9 continues to rotate. When the door body needs to be unlocked, the drive motor 62 is started. The drive motor 62 drives the transmission block 5 to move through the meshing action of the first transmission assembly 61 and the first rack 51, thereby driving the positioning rod 4 to move in the direction of extending out of the housing 21 until the front end of the positioning rod 4 contacts the surface of the rotating component 9 (flange). When the transmission block 5 moves, the second rack 52 also moves accordingly. During this process, the second rack 52 is in an idle stroke motion and does not drive the double gear 631 to rotate. At this time, the stopper 41 of the transmission block 5 just blocks the first point detection member 831. The first point detection member 831 feeds back a signal to the main control unit of the appliance and controls the rotating component 9 to continue rotating. When the blind hole 91 rotates to the position corresponding to the positioning rod 4, the positioning rod 4 is inserted into the blind hole 91 under the elastic force of the extension spring 7 to achieve positioning, causing the rotating component 9 to stop rotating. The extension spring 7 will extend a certain distance, and the driving assembly 6 can drive the transmission block 5 further forward, while the second rack 52 and the double gear 631 are meshed and transmitted. The rotation of the double gear 631 synchronously drives the push rod 3 out of the housing 21 through the third rack 632. The front end of the push rod 3 pushes the first unlocking block 14 into the door lock body 1, so that the first unlocking block 14 no longer stops the lock hook 11, and the lock hook 11 can rotate toward the lock hole 13 to unlock. In this way, the positioning and unlocking processes of the rotating component 9 can be carried out in an orderly manner.

[0058] The door lock body 1 and the unlocking and positioning linkage device 2 are set separately. Compared with the integrated setting in the prior art, the door lock body 1 that does not require electrical connection can be installed on the rotating component 9, and the electric control device that requires electrical connection can be installed on the fixed component to avoid wire entanglement, thereby improving safety. The positioning and unlocking processes are linked and coordinated in sequence to achieve rapid rotation stopping and unlocking.

[0059] It should be noted that the rotating component 9 with a blind hole shown in the figure is only a part of its upper flange.

[0060] Example 2:

[0061] A door lock system that integrates positioning and unlocking, such as Figure 10-11 As shown, this embodiment differs from Example 1 in that the position detection assembly 8 is different. In this embodiment, the position detection assembly 8 includes a first microswitch 84, a second microswitch 85, and a third microswitch 86. The transmission block 5 is provided with a first protrusion 54 and a second protrusion 55. The first protrusion 54 and the second protrusion 55 are respectively provided with inclined surfaces corresponding to the contacts of the first microswitch 84 and the third microswitch 86. The first microswitch 84 is positioned and engaged with the first protrusion 54, the third microswitch 86 is positioned and engaged with the second protrusion 55, and the second microswitch 85 is positioned and engaged with the stopper 41 of the positioning rod 4. The first microswitch 84 is located below the positioning rod 4, the second microswitch 85 is located above the positioning rod 4, and the third microswitch 86 is located below the transmission block 5. The contacts of the first and second microswitch 84, 85 are tilted toward the extension direction of the positioning rod 4, and the contact of the third microswitch 86 is tilted toward the retraction direction of the positioning rod 4. When the transmission block 5 moves in the direction of extending the positioning rod 4, the inclined surface of the first protrusion 54 and the contact on the first microswitch 84 can play a better role in interference and cooperation. When the transmission block 5 moves in the direction of retracting the positioning rod 4, the inclined surface of the second protrusion 55 and the contact on the third microswitch 86 can play a better role in interference and cooperation, so that the interference directions are adapted and it is not easy to cause damage to the contacts of the microswitch.

[0062] The basic working principle of this embodiment is as follows: in the initial state, the positioning rod 4 is retracted in the housing 21. At this time, the second protrusion 55 corresponds to the contact piece of the third microswitch 86, and the transmission block 5 and the positioning rod 4 are retracted relative to the housing 21. When the rotating component 9 (flange) needs to be positioned, the driving assembly 6 is started, and the driving assembly 6 drives the transmission block 5 and the positioning rod 4 to gradually extend out of the housing 21 until the outer end of the positioning rod 4 contacts the surface of the rotating component 9. The first protrusion 54 corresponds to the contact piece of the first microswitch 84, and the position of the transmission block 5 can be detected and the signal can be fed back to the remote end, so that the rotating component 9 further rotates. At the same time, the driving assembly 6 drives the transmission block 5 to move further in the direction of extending the positioning rod 4, so that the extension spring 7 is compressed. During this process, the extension spring 7 gradually accumulates force. When the blind hole 91 of the rotating component 9 rotates to correspond to the positioning rod 4, the positioning rod 4 extends and is inserted into the blind hole 91 under the elastic force of the extension spring 7, so that the rotating component 9 can be positioned. At this time, the stopper 41 of the positioning rod 4 acts on the second micro switch 85 to feed back a signal to the remote end. In this way, the blind hole 91 on the rotating component 9 can be positioned, which is suitable for installing the flange in a place that is not directly visible, such as the inner drum of a washing machine, so as to achieve rapid positioning.

[0063] It should be noted that the invention is not only applicable to the door lock of the inner drum of a washing machine, but can also be used in other components that are rotationally locked and require electronic unlocking, such as a blender.

[0064] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A door lock system integrating positioning and unlocking, characterized by: The invention comprises a door lock body (1) and an unlocking and positioning linkage device (2) which are arranged separately, wherein the door lock body (1) is mounted on a rotating component (9), and the unlocking and positioning linkage device (2) is mounted on a fixed component, and the rotating component (9) is provided with a blind hole (91); a lock hook (11) is provided in the door lock body (1) for rotating inside, and a lock hole (13) for inserting the door hook (10) is provided on the door lock body (1), and the lock hook (11) and the door hook (10) are locked together; An unlocking assembly is also provided in the door lock body (1), and the unlocking assembly includes a first unlocking block (14) slidably provided on the door lock body (1), and the first unlocking block (14) cooperates with the lock hook (11) to stop. The unlocking and positioning linkage device (2) comprises a housing (21), a driving assembly (6), a push rod (3) and a positioning rod (4); the push rod (3) and the positioning rod (4) are both slidably arranged on the housing (21); the driving assembly (6) drives the push rod (3) and the positioning rod (4) to extend and retract relative to the housing (21) through the linkage assembly; when the push rod (3) is extended, it pushes and cooperates with the first unlocking block (14); When the positioning rod (4) extends out of the housing (21) and is inserted into the blind hole (91), the linkage assembly drives the push rod (3) to push the first unlocking block (14) to move, so that the first unlocking block (14) is away from the lock hook (11), and the lock hook (11) can be rotated to unlock the door hook (10).

2. The door lock system integrating positioning and unlocking according to claim 1, characterized in that: The linkage assembly includes a transmission block (5), the transmission block (5) is integrally formed with a first rack (51) and a second rack (52), the driving assembly (6) includes a first transmission assembly (61) and a driving motor (62), the first transmission assembly (61) is engaged with the first rack (51), and the driving motor (62) drives the transmission block (5) to move in the housing (21) through the first transmission assembly (61); the second rack (52) is transmission-coordinated with the push rod (3) through the second transmission assembly (63); and the positioning rod (4) is mounted on the transmission block (5).

3. The door lock system integrating positioning and unlocking according to claim 2, characterized in that: The length of the second rack (52) is set to be half of the first rack (51), and the second transmission assembly (63) includes a double gear (631) and a third rack (632). The double gear (631) is rotatably arranged in the housing (21) through a gear shaft, and the third rack (632) is integrally formed on the side wall of the push rod (3); the double gear (631) is respectively engaged with the second rack (52) and the third rack (632), and an idle stroke is provided between the second rack (52) and the double gear (631).

4. The door lock system integrating positioning and unlocking according to claim 2, characterized in that: The positioning rod (4) is elastically connected to the transmission block (5) via an elastic member, and the elastic member enables the positioning rod (4) to always have a movement tendency away from the transmission block (5).

5. The door lock system integrating positioning and unlocking according to claim 4, characterized in that: The unlocking and positioning linkage device (2) includes a position detection component (8), and the position detection component (8) includes a first micro switch (84), a second micro switch (85) and a third micro switch (86); the transmission block (5) is provided with a first protrusion (54) and a second protrusion (55), and the side wall of the positioning rod (4) is provided with a stopper (41); the first micro switch (84) is positioned and matched with the first protrusion (54), the third micro switch (86) is positioned and matched with the second protrusion (55), and the second micro switch (85) is positioned and matched with the stopper (41).

6. The door lock system integrating positioning and unlocking according to claim 5, characterized in that: A sliding groove (53) is provided on the side wall of the transmission block (5), and the stopper (41) slides in the sliding groove (53).

7. The door lock system integrating positioning and unlocking according to claim 4, characterized in that: The unlocking and positioning linkage device (2) includes a position detection component (8), the position detection component (8) includes a fixing frame (81), a circuit board (82) provided on the fixing frame (81), and a photoelectric signal detection element (83) provided on the circuit board (82), the photoelectric signal detection element (83) includes a first position detection element (831) and a second position detection element (832), the first position detection element (831) is positioned and matched with the transmission block (5), and the second position detection element (832) is positioned and matched with the positioning rod (4).

8. The door lock system integrating positioning and unlocking according to claim 1, characterized in that: A first return spring (143) is provided in the door lock body (1), and the first return spring (143) drives the first unlocking block (14) to always have a movement tendency of extending out of the door lock body (1); the first unlocking block (14) is provided with an avoidance notch (141) and a blocking portion (142); when the first return spring (143) is in an extended state, the blocking portion (142) cooperates with the lock hook (11) to stop, and the lock hook (11) is in a locked state; when the first return spring (143) is in a compressed state, the avoidance notch (141) cooperates with the lock hook (11) to avoid, and the lock hook (11) is in an unlocked state.

9. The door lock system integrating positioning and unlocking according to claim 8, characterized in that: The unlocking assembly further comprises a second unlocking block (15) provided in the door lock body (1), the second unlocking block (15) and the first unlocking block (14) being coupled in transmission via a guide surface (151), the guide surface (151) being provided on the second unlocking block (15), the guide surface (151) driving the first unlocking block (14) to move into the door lock body (1), and the unlocking directions of the first unlocking block (14) and the second unlocking block (15) being perpendicular to each other; a second return spring (152) is provided between the second unlocking block (15) and the door lock body (1), the second return spring (152) driving the second unlocking block (15) to always have a movement tendency of extending out of the door lock body (1); the lock hook (11) is provided with a return torsion spring (16), the return torsion spring (16) driving the lock mouth of the lock hook (11) to always have a movement tendency toward the lock hole (13).

10. The door lock system integrating positioning and unlocking according to claim 9, characterized in that: A positioning structure is provided between the first unlocking block (14) and the second unlocking block (15), the positioning structure comprising a hook portion (155) and a positioning groove (154) provided on the second unlocking block (15); the first unlocking block (14) is provided with a positioning portion (145); the hook portion (155) and the positioning portion (145) are engaged in a stoppering manner along the direction in which the second unlocking block (15) extends out of the door lock body (1); the positioning portion (145) is correspondingly embedded in the positioning groove (154); the blocking portion (142) of the first unlocking block (14) is provided with a guide inclined surface (146); the upper surface of the blocking portion (142) is provided as a stop surface, and the guide inclined surface (146) is provided adjacent to the stop surface.

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