Lock body
By centrally setting the drive motor, anti-locking tongue and handle seat in the lock body, the transmission mechanism is simplified, and the problem of excessive size of the traditional lock body is solved, thereby improving the compactness and applicability of the lock body structure are achieved.
Patent Information
- Application Number
- CN202421610317.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The lock body of traditional electronic locks requires the installation of motors, handles, lock tongues and other structures, which leads to too large size and is difficult to adapt to a variety of door bodies, and has poor applicability.
A lock body is designed, by setting a drive motor, anti-locking tongue, cross-slant tongue, handle seat, limiting mechanism and locking core mechanism in the lock shell, and centrally setting the anti-locking tongue, drive motor and handle seat, simplifying the transmission mechanism structure and improving structural compactness.
The compactness of the lock body structure is achieved, and the problem of excessive lock body size caused by the drive motor, lock core mechanism, cross lock tongue and limit mechanism are avoided when the driving motor, the lock body is set at the same time, and the suitability of the lock body is enhanced.
Smart Images
Figure CN222879447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a lock body. Background Art
[0002] With the development of technology, the application of electronic locks has become more and more extensive. Compared with traditional pure mechanical locks, in electronic locks, a motor is generally set in the lock body. While being able to unlock with a key, the motor can also be controlled by an electronic key to unlock. However, after the motor is set, the lock body has structures such as a motor, a handle seat, various lock tongues, and a lock core. In order to ensure the normal coordination of each structure, the length or width of the lock body is generally increased so that there is enough space in the lock body to install various components. However, this usually results in the lock body being too large, making it difficult to adapt to a variety of door bodies, and having poor applicability. Utility Model Content
[0003] The main purpose of the utility model is to provide a lock body, aiming to improve the compactness of the lock body structure.
[0004] In order to achieve the above-mentioned purpose, the lock body proposed by the utility model comprises:
[0005] A lock housing, wherein a first tongue hole and a second tongue hole are provided on one side of the lock housing, a reverse lock tongue is provided at the first tongue hole, and a cross oblique tongue is provided at the second tongue hole;
[0006] A driving motor is disposed in the lock housing and is located at a side of the anti-locking tongue away from the second tongue hole, and the driving motor is transmission-connected to the anti-locking tongue through a transmission mechanism;
[0007] A handle seat is rotatably mounted on the lock housing and is located at the anti-lock tongue. The handle seat is transmission-connected to the anti-lock tongue through the transmission mechanism.
[0008] a limiting mechanism, which can be movably mounted on the lock housing and is located at the rear side of the cross oblique tongue, the limiting mechanism having a limiting state for limiting the retraction of the cross oblique tongue into the second tongue hole and a avoiding state for avoiding the cross oblique tongue, the limiting mechanism cooperates with the transmission mechanism to drive the limiting mechanism to move to the avoiding state when the transmission mechanism drives the anti-lock tongue to retract into the first tongue hole; and
[0009] The lock core mechanism is arranged on the lock housing and is located on a side of the limiting mechanism away from the anti-lock tongue. The lock core mechanism cooperates with the transmission mechanism to drive the anti-lock tongue to retract into the first tongue hole.
[0010] Optionally, the lock body further comprises a sensing device, wherein the sensing device is arranged on a side of the cross oblique tongue away from the anti-lock tongue, the sensing device is configured to be triggered when the door is closed, and the driving motor is configured to drive the anti-lock tongue to extend out of the first tongue hole when the sensing device is triggered.
[0011] Optionally, the sensing device includes a triggering inclined tongue, a first sensor and a first elastic member. The lock housing is further provided with a third tongue hole, and the third tongue hole is located on a side of the second tongue hole away from the first tongue hole. The triggering inclined tongue is movably installed in the third tongue hole and has a first position extending out of the third tongue hole and a second position retracted into the third tongue hole. The first elastic member has elastic deformation driving the triggering inclined tongue to move to the first position. The first sensor is disposed in the lock housing, and the first sensor is triggered when the triggering inclined tongue moves to the second position.
[0012] Optionally, a portion of the anti-locking tongue located in the lock housing is provided with an avoidance hole, the handle seat is penetrated through the avoidance hole, and a size of the avoidance hole along the movement direction of the anti-locking tongue is larger than a diameter of a corresponding portion of the handle seat.
[0013] Optionally, the anti-locking tongue is provided with a rack portion, which extends along the movement direction of the anti-locking tongue. The transmission mechanism includes a first gear and a second gear, the first gear is meshed with the rack portion and is connected to the driving motor, and the second gear is installed on the handle seat and meshed with the first gear.
[0014] Optionally, the second gear is provided with a mounting hole and an avoidance gap located on the wall of the mounting hole, the second gear is rotatably mounted on the handle seat through the mounting hole, the handle seat is provided with a limiting protrusion, the limiting protrusion is correspondingly located in the avoidance gap, and the width of the avoidance gap along the circumferential direction of the handle seat is greater than the width of the limiting protrusion along the circumferential direction of the handle seat.
[0015] Optionally, the limiting mechanism includes a mounting shaft and a limiting member, the mounting shaft is mounted on the lock housing, the limiting member is rotatably mounted on the mounting shaft, a limiting portion is provided on a side of the limiting member close to the cross oblique tongue, and a first abutting portion is provided on a side close to the lock core mechanism, in the limiting state, the limiting portion is located on a movement path when the cross oblique tongue is retracted into the second tongue hole, and in the avoidance state, the limiting portion is located outside the movement path when the cross oblique tongue is retracted into the second tongue hole, and the lock core mechanism has a fork driven by a key, so as to directly or indirectly abut the first abutting portion through the fork, so as to drive the limiting member to move from the limiting state to the avoidance state.
[0016] Optionally, a second abutment is provided on the side of the anti-lock tongue away from the first tongue hole, and the transmission mechanism includes a toggle member, which is rotatably installed on the mounting shaft, and the toggle member has a first arm extending toward the lock core mechanism and a second arm extending toward the anti-lock tongue, the second arm is located on the side of the second abutment facing the first tongue hole, and the first arm is arranged corresponding to the shift fork of the lock core mechanism, so that the shift fork can push the first arm to drive the second arm to move toward the second abutment, thereby pushing the anti-lock tongue to retract into the first tongue hole.
[0017] Optionally, an abutment column is provided at the end of the first arm, and the abutment column is located on the side of the first abutment portion, so that when the shift fork abuts against the abutment column, the first abutment portion is pushed by the abutment column.
[0018] Optionally, the transmission mechanism also includes a third gear, a fourth gear and a linkage member, the third gear is rotatably sleeved on the handle base, the fourth gear is rotatably installed on the lock housing and meshes with the third gear, the fourth gear is transmission connected to the driving motor, the end face of the third gear is provided with a third abutment, the limiting member is provided with a fourth abutment, the linkage member is slidably installed between the third gear and the limiting member along the direction from the first tongue hole to the second tongue hole, and is provided with a first hook extending toward the third gear and a second hook extending toward the limiting member, the first hook cooperates with the third abutment, and the second hook cooperates with the fourth abutment, so as to drive the limiting member to move to the avoidance state when the handle base or the driving motor drives the anti-lock tongue to retract into the first tongue hole.
[0019] Optionally, a portion of the triggering oblique tongue located in the lock housing is provided with a hook-pull portion, and the limiting member has an extension portion extending toward the triggering oblique tongue, and the extension portion is located on a side of the hook-pull portion facing the third tongue hole, so that when the triggering oblique tongue extends toward the third tongue hole, the hook-pull portion abuts against the extension portion to drive the limiting member to move from the limiting state to the avoidance state.
[0020] Optionally, the transmission mechanism further includes a second elastic member, which connects the limiting member and the lock housing and has elastic deformation for driving the limiting member to move from the avoidance state to the limiting state.
[0021] The technical solution of the utility model is that when the drive motor, the anti-lock tongue, the cross-lock tongue, the handle seat, the limiting mechanism and the lock core mechanism are arranged on the lock body, the drive motor is arranged on the side of the anti-lock tongue away from the second tongue hole, the handle seat is rotatably installed at the anti-lock tongue, and the limiting mechanism is arranged on the rear side of the cross-oblique tongue, so that the limiting mechanism and the cross-oblique tongue are arranged in parallel on the side of the anti-lock tongue, and then the lock core mechanism is arranged on the side of the limiting mechanism away from the anti-lock tongue. In this way, the anti-lock tongue, the drive motor and the handle seat are centrally arranged, which is conducive to reducing the size of the transmission mechanism between the drive motor, the handle seat and the anti-lock tongue, thereby simplifying the structure of the transmission mechanism and improving the compactness of the structure. Then the limiting mechanism and the cross-oblique tongue are arranged in parallel on the side of the anti-lock tongue. Since the length of the cross-oblique tongue can be set smaller, the space on the rear side of the cross-oblique tongue can be fully utilized, so that the anti-lock tongue, the cross-lock tongue, the handle seat and the limiting mechanism are arranged compactly, which can improve the compactness of the lock body structure and avoid the situation that the lock body size is too large when the drive motor, the lock core mechanism, the cross-lock tongue and the limiting mechanism are arranged at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0023] Figure 1 This is a structural schematic diagram of an embodiment of a lock body of the utility model;
[0024] Figure 2 for Figure 1 Schematic diagram of the structure after the middle lock body hides part of the lock shell;
[0025] Figure 3 for Figure 2 A schematic diagram of the structure on the other side of the middle lock body;
[0026] Figure 4 for Figure 2 A schematic diagram of the structure of the middle lock body when it is in the door closing and locking state;
[0027] Figure 5 for Figure 4 A schematic diagram of the structure on the other side of the middle lock body;
[0028] Figure 6 for Figure 5 A schematic diagram of the structure of the middle drive motor, the handle seat and the anti-lock tongue;
[0029] Figure 7 for Figure 6 Schematic diagram of the structure of the middle drive motor, handle seat and anti-lock tongue from another angle
[0030] Figure 8 for Figure 7 Sectional view at XX in the middle;
[0031] Fig. 9 for Figure 6 Schematic diagram of the structure of the middle reverse lock tongue;
[0032] Fig.10 for Figure 6 A schematic diagram of the structure of the fourth gear and the first gear;
[0033] Fig.11 for Figure 6 Schematic diagram of the structure of the middle handle seat and the second gear;
[0034] Fig.12 for Figure 5 A schematic diagram of the structure of the middle handle seat, the third gear, the linkage member and the limit member;
[0035] Fig.13 for Figure 5 Schematic diagram of the structure after the middle lock body hides the handle seat, the third gear, the linkage part and the limit part.
[0036] Description of Figure Numbers:
[0037] 10. Lock housing; 11. First tongue hole; 12. Second tongue hole; 13. Third tongue hole; 14. Anti-lock tongue; 141. Avoidance hole; 142. Rack portion; 143. Second abutment portion; 15. Cross-oblique tongue; 16. Return spring; 21. Mounting shaft; 22. Stopper; 221. Stopper portion; 222. First abutment portion; 223. Fourth abutment portion; 224. Extension portion; 30. Drive motor; 40. Handle seat; 41. Stopper convex portion; 42. Fifth abutment portion; 51. First gear; 511. Second abutment portion Holding part; 52, second gear; 521, mounting hole; 522, avoidance gap; 53, third gear; 531, third abutting part; 54, fourth gear; 541, first abutting part; 55, linkage member; 551, first hook; 552, second hook; 56, toggle member; 561, first arm; 562, abutting column; 563, second arm; 57, second elastic member; 61, triggering oblique tongue; 611, hooking and pulling part; 62, first sensor; 63, first elastic member; 70, lock core mechanism; 71, fork.
[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0042] The utility model provides a lock body.
[0043] In the embodiment of the present utility model, Figures 1 to 13 As shown, the lock body includes a lock housing 10, a driving motor 30, a handle seat 40, a limiting mechanism and a lock core mechanism 70. A first tongue hole 11 and a second tongue hole 12 are provided on one side of the lock housing 10. A reverse lock tongue 14 is provided at the first tongue hole 11, and a cross oblique tongue 15 is provided at the second tongue hole 12. Specifically, the first tongue hole 11 and the second tongue hole 12 are spaced apart along the length direction of the lock housing 10, that is, when the lock body is installed on the door body, the length direction of the lock housing 10 is consistent with the up-and-down direction of the door body.
[0044] The drive motor 30 is arranged in the lock housing 10 and is located at a side of the anti-locking tongue 14 away from the second tongue hole 12. The drive motor 30 is transmission-connected to the anti-locking tongue 14 through a transmission mechanism. That is, the drive motor 30 can at least be used to drive the anti-locking tongue 14 to retract into the first tongue hole 11 so as to electrically unlock the door when the door is closed.
[0045] The handle seat 40 is rotatably mounted on the lock housing 10 and is located at the anti-locking tongue 14 . The handle seat 40 is transmission-connected to the anti-locking tongue 14 via a transmission mechanism; that is, the handle seat 40 can at least be used to drive the anti-locking tongue 14 to retract into the first tongue hole 11 .
[0046] The limiting mechanism can be movably mounted on the lock housing 10 and is located at the rear side of the cross-oblique tongue 15. The limiting mechanism has a limiting state for limiting the cross-oblique tongue 15 to retract into the second tongue hole 12 and a avoiding state for avoiding the cross-oblique tongue 15. The limiting mechanism cooperates with the transmission mechanism to drive the limiting mechanism to move to the avoiding state when the transmission mechanism drives the anti-lock tongue 14 to retract into the first tongue hole 11. That is, the end of the cross-oblique tongue 15 extending from the first tongue hole 11 is the front end, and the end located in the lock housing 10 is the rear end. When the limiting mechanism is in the limiting state, the limiting mechanism is located on the movement path when the cross-oblique tongue 15 retracts into the second tongue hole 12, so as to limit the cross-oblique tongue 15 from retracting into the second tongue hole 12. That is, when the door is closed only by the cross-oblique tongue 15, the cross-oblique tongue 15 can be prevented from automatically retracting into the second tongue hole 12, thereby avoiding misoperation or opening the door by abnormal means. When the anti-locking tongue 14 is used to lock the door, when the limiting mechanism is in the limiting state, the limiting mechanism is also located on the movement path when the cross-oblique tongue 15 is retracted into the second tongue hole 12. When unlocking, when the driving motor 30 or the handle seat 40 drives the anti-locking tongue 14 to retract into the first tongue hole 11 through the transmission mechanism, the transmission mechanism can drive the limiting mechanism to move from the limiting state to the avoidance state, so that the limiting mechanism leaves the movement path when the cross-oblique tongue 15 is retracted into the second tongue hole 12, so that the cross-oblique tongue 15 can be normally retracted into the second tongue hole 12, and unlocking is achieved. A reset spring 16 is arranged in the lock housing 10, the reset spring 16 abuts against the cross-oblique tongue 15, and has elastic deformation to drive the cross-oblique tongue 15 to extend out of the second tongue hole 12.
[0047] The lock core mechanism 70 is provided in the lock housing 10 and is located on the side of the limit mechanism away from the anti-lock tongue 14. The lock core mechanism 70 cooperates with the transmission mechanism to drive the anti-lock tongue 14 to retract the first tongue hole 11. That is, the anti-lock tongue 14 can be driven by the key to retract the first tongue hole 11 to achieve unlocking.
[0048] The technical solution of the utility model is that when the drive motor 30, the anti-lock tongue 14, the cross lock tongue, the handle seat 40, the limiting mechanism and the lock core mechanism 70 are arranged on the lock body, the drive motor 30 is arranged on the side of the anti-lock tongue 14 away from the second tongue hole 12, the handle seat 40 is rotatably installed at the anti-lock tongue 14, the limiting mechanism is arranged on the rear side of the cross oblique tongue 15, so that the limiting mechanism and the cross oblique tongue 15 are arranged in parallel on the side of the anti-lock tongue 14, and the lock core mechanism 70 is arranged on the side of the limiting mechanism away from the anti-lock tongue 14. In this way, the anti-lock tongue 14, the drive motor 30 and the handle seat 40 are centrally arranged, which is conducive to reducing the size of the transmission mechanism between the drive motor 30, the handle seat 40 and the anti-lock tongue 14, thereby simplifying the structure of the transmission mechanism and improving the compactness of the structure. The limiting mechanism is then arranged in parallel with the cross oblique tongue 15 on one side of the anti-lock tongue 14. Since the length of the cross oblique tongue 15 can be set to be smaller, the space behind the cross oblique tongue 15 can be fully utilized, so that the anti-lock tongue 14, the cross lock tongue, the handle seat 40 and the limiting mechanism are compactly arranged, which can improve the compactness of the lock body structure and avoid the situation where the lock body is too large when the drive motor 30, the lock core mechanism 70, the cross lock tongue and the limiting mechanism are set at the same time.
[0049] In some embodiments, the lock body further includes a sensing device, which is disposed on a side of the cross-oblique tongue 15 away from the anti-lock tongue 14, and the sensing device is configured to be triggered when the door is closed, and the drive motor 30 is configured to drive the anti-lock tongue 14 to extend out of the first tongue hole 11 when the sensing device is triggered. Specifically, the lock body further includes an electric control device, and when the lock body is installed on the door body for use, in the door open state, the anti-lock tongue 14 is in a state of being retracted into the first tongue hole 11, and when the door is closed until the door body is located in the door frame, the sensing device can be triggered by the door frame, and the sensing device sends an electrical signal to the electric control device. When the electric control device receives the electrical signal sent by the sensing device, it controls the drive motor 30 to drive the anti-lock tongue 14 to extend out of the first tongue hole 11, so that the anti-lock tongue 14 extends into the corresponding lock hole of the door frame. In this way, automatic anti-locking can be achieved when the door is closed, avoiding the situation where the user manually locks the door, and also avoiding the situation where the user forgets to lock the door, which can improve the convenience and safety of the user.
[0050] In some embodiments, the sensing device includes a triggering inclined tongue 61, a first sensor 62 and a first elastic member 63. The lock housing 10 is further provided with a third tongue hole 13. The third tongue hole 13 is located on a side of the second tongue hole 12 away from the first tongue hole 11. The triggering inclined tongue 61 is movably installed in the third tongue hole 13 and has a first position extending out of the third tongue hole 13 and a second position retracted into the third tongue hole 13. The first elastic member 63 has elastic deformation that drives the triggering inclined tongue 61 to move to the first position. The first sensor 62 is disposed in the lock housing 10. The first sensor 62 is triggered when the triggering inclined tongue 61 moves to the second position. Specifically, when the door is opened, under the action of the first elastic member 63, the triggering oblique tongue 61 extends from the third tongue hole 13. When the door is closed, as the door body gradually embeds into the door frame, the triggering oblique tongue 61 is abutted by the door frame and retracts into the third tongue hole 13. When the triggering oblique tongue 61 moves to the second position, that is, the door body is completely closed, the anti-locking tongue 14 and the cross oblique tongue 15 correspond to the lock holes on the door frame respectively, and the triggering oblique tongue 61 triggers the first sensor 62 at the same time. The first sensor 62 sends an electrical signal to the electric control device. When the electric control device receives the electrical signal sent by the sensor device, it controls the driving motor 30 to drive the anti-locking tongue 14 to extend from the first tongue hole 11, so that the anti-locking tongue 14 extends into the corresponding lock hole of the door frame. Such a structure is simple and reliable, and the first sensor 62 is located in the lock housing 10 to avoid being damaged by bumps. Among them, the first elastic member 63 can be a spring or an elastic body, etc. The first sensor 62 can be a micro switch, a Hall switch or a photoelectric switch, etc.
[0051] In addition, in other embodiments, the sensing device may also be a Hall switch or an infrared sensor, etc.
[0052] In some embodiments, the portion of the anti-locking tongue 14 located in the lock housing 10 is provided with an avoidance hole 141, and the handle seat 40 is provided through the avoidance hole 141, and the size of the avoidance hole 141 along the movement direction of the anti-locking tongue 14 is larger than the diameter of the corresponding portion of the handle seat 40. That is, the handle seat 40 can rotatably pass through the avoidance hole 141, and compared with the case where the handle seat 40 is provided beside the anti-locking tongue 14, the installation space of the handle seat 40 and the anti-locking tongue 14 partially overlaps, which can further improve the compactness of the lock body structure.
[0053] In some embodiments, the anti-lock tongue 14 is provided with a rack portion 142, the rack portion 142 extends along the movement direction of the anti-lock tongue 14, the transmission mechanism includes a first gear 51 and a second gear 52, the first gear 51 is meshed with the rack portion 142, and is in transmission connection with the drive motor 30, and the second gear 52 is installed on the handle seat 40 and meshed with the first gear 51. That is, the handle seat 40 and the drive motor 30 are both driven by the first gear 51 and the rack portion 142 of the anti-lock tongue 14, compared with the case where the handle seat 40 and the drive motor 30 are each matched with the rack portion 142 through a gear or the anti-lock tongue 14 is respectively provided with a rack portion 142 corresponding to the handle seat 40 and the drive motor 30, this can simplify the structure of the anti-lock tongue 14, reduce the number of parts of the transmission mechanism, and improve the compactness of the structure of the anti-lock tongue 14, the handle seat 40 and the transmission mechanism.
[0054] In the embodiment where the portion of the anti-locking tongue 14 located in the lock housing 10 is provided with the avoidance hole 141, the second gear 52 and the portion of the anti-locking tongue 14 located in the lock housing 10 overlap more in the thickness direction of the lock housing 10, which can further improve the compactness of the lock body structure. Of course, the handle seat 40 can also be arranged on one side of the anti-locking tongue 14.
[0055] Optionally, the driving motor 30 is a reduction motor.
[0056] Optionally, the second gear 52 is provided with a mounting hole 521 and an avoidance notch 522 located on the hole wall of the mounting hole 521. The second gear 52 is rotatably sleeved on the handle base 40 through the mounting hole 521. The handle base 40 is provided with a limiting protrusion 41, and the limiting protrusion 41 is correspondingly located in the avoidance notch 522. The width of the avoidance notch 522 along the circumferential direction of the handle base 40 is greater than the width of the limiting protrusion 41 along the circumferential direction of the handle base 40. That is, when the handle rotates relative to the second gear 52 until the limiting protrusion 41 abuts against any side wall of the avoidance notch 522, the handle base 40 can drive the second gear 52 to rotate. In this way, by adjusting the initial positions of the second gear 52 and the handle seat 40, the limiting protrusion 41 is close to the first side wall of the avoidance gap 522. When the driving motor 30 drives the first gear 51 to rotate and drive the anti-locking tongue 14 to extend out of the first tongue hole 11, the first gear 51 drives the second gear 52 to rotate relative to the handle seat 40. In this process, the second side wall of the avoidance gap 522 (the second side wall is opposite to the first side wall) gradually approaches the limiting protrusion 41. When the anti-locking tongue 14 is extended to the right position, the second side wall of the avoidance gap 522 contacts or is spaced from the limiting protrusion 41. When opening the door, the driving motor 30 drives the first gear 51 to rotate in the opposite direction to drive the anti-locking tongue 14 to retract into the first tongue hole 11. At this time, the second gear 52 also rotates in the opposite direction relative to the handle seat 40, so that the first side wall gradually approaches the limiting protrusion 41 until the anti-locking tongue 14 retracts into the first tongue hole 11, and the first side wall contacts or is spaced from the limiting protrusion 41. This can prevent the handle base 40 from rotating when the driving motor 30 drives the first gear 51 to rotate, thereby reducing the load of the driving motor 30. Of course, in other embodiments, a movable latch can be provided between the second gear 52 and the handle base 40 to enable the second gear 52 to be engaged or disengaged through the latch.
[0057] In some embodiments, the limiting mechanism includes a mounting shaft 21 and a limiting member 22, the mounting shaft 21 is mounted on the lock housing 10, the limiting member 22 is rotatably mounted on the mounting shaft 21, a limiting portion 221 is provided on the side of the limiting member 22 close to the cross-oblique tongue 15, and a first abutting portion 222 is provided on the side close to the lock core mechanism 70, in the limiting state, the limiting portion 221 is located on the movement path when the cross-oblique tongue 15 is retracted into the second tongue hole 12, in the avoidance state, the limiting portion 221 is located outside the movement path when the cross-oblique tongue 15 is retracted into the second tongue hole 12, and the lock core mechanism 70 has a fork 71 that is driven by a key, so as to directly or indirectly abut the first abutting portion 222 through the fork 71, so as to drive the limiting member 22 to move from the limiting state to the avoidance state. Specifically, when closing the door, even if the anti-lock tongue 14 is not used for anti-locking, the limiting member 22 in the limiting state can avoid directly opening the door. At this time, the limit member 22 can be driven by the key to move from the limit state to the avoidance state, thereby achieving unlocking.
[0058] In some embodiments, a second abutment 143 is provided on the side of the anti-lock tongue 14 away from the first tongue hole 11, and the transmission mechanism includes a toggle member 56, which is rotatably installed on the mounting shaft 21, and the toggle member 56 has a first arm 561 extending toward the lock core mechanism 70 and a second arm 563 extending toward the anti-lock tongue 14, and the second arm 563 is located on the side of the second abutment 143 facing the first tongue hole 11. The first arm 561 is arranged corresponding to the fork 71 of the lock core mechanism 70, so that the fork 71 can push the first arm 561 to drive the second arm 563 to move toward the second abutment 143, thereby pushing the anti-lock tongue 14 to retract into the first tongue hole 11. That is, when the door is closed, when the anti-lock tongue 14 extends from the first tongue hole 11, the fork 71 is rotated by the key, and the fork 71 pushes the first arm 561 to rotate the toggle member 56, so that the second arm 563 moves toward the second abutting portion 143 on the anti-lock tongue 14, and then the anti-lock tongue 14 is driven to retract into the first tongue hole 11 by pushing the second abutting portion 143, thereby achieving unlocking. In this way, the anti-lock tongue 14 can be unlocked by driving the driving motor 30 or by driving the key, which is convenient for users to choose to use. Even when the driving motor 30 is powered off, the key can be used to unlock the door, which is convenient for users to use.
[0059] Optionally, an abutment column 562 is provided at the end of the first arm 561, and the abutment column 562 is located at the side of the first abutment portion 222, so that when the shift fork 71 abuts against the abutment column 562, the first abutment portion 22 is pushed by the abutment column 562. That is, when the anti-lock tongue 14 is retracted into the first tongue hole 11 by the key, the limiting member 22 can be driven to move from the limiting state to the avoidance state. In this way, the toggle member 56 and the limiting member 22 are installed on the mounting shaft 21 at the same time, and the toggle member 56 is used to drive the limiting member 22 to move, which can avoid the situation of additionally setting a component between the shift fork 71 and the limiting member 22, and can reduce the number of components and improve the compactness of the structure.
[0060] When the transmission structure drives the anti-locking tongue 14 to extend out of the first tongue hole 11, the transmission structure can drive the limiting mechanism to move to the limited state, and a motor can also be provided to drive the limiting mechanism to move to the limited state.
[0061] In some embodiments, the transmission mechanism also includes a third gear 53 and a linkage member 55. The third gear 53 is rotatably mounted on the handle seat 40 and is transmission-connected to the drive motor 30. The end face of the third gear 53 is provided with a third abutment portion 531, and the limiting member 22 is provided with a fourth abutment portion 223; the linkage member 55 is slidably installed between the third gear 53 and the limiting member 22 along the direction from the first tongue hole 11 to the second tongue hole 12, and is provided with a first hook portion 551 extending toward the third gear 53 and a second hook portion 552 extending toward the limiting member 22. The first hook portion 551 cooperates with the third abutment portion 531, and the second hook portion 552 cooperates with the fourth abutment portion 223, so as to drive the limiting member 22 to move to an avoidance state when the drive motor 30 drives the anti-locking tongue 14 to retract into the first tongue hole 11.
[0062] Specifically, the first hook 551 and the second hook 552 are arranged opposite to each other, the side of the first hook 551 facing the second hook 552 is used to abut against the third abutting portion 531, and the side of the second hook 552 facing the first hook 551 is used to abut against the fourth abutting portion 223, and the fourth abutting portion 223 is spaced from the rotating shaft of the limiting member 22 in the moving direction of the cross oblique tongue 15. In the closed state, the first hook 551 is located above the third abutting portion 531, and when the anti-locking tongue 14 extends from the first tongue hole 11, the anti-locking tongue 14 is driven to retract into the first tongue hole 11 by the driving motor 30, and the third gear 53 can be driven to rotate, so that the third abutting portion 531 abuts against the side of the first hook 551 facing the second hook 552, thereby pushing the linkage member 55 to move upward, and at this time, the second hook 552 hooks the fourth abutting portion 223, thereby driving the limiting member 22 to rotate, so that the limiting member 22 moves from the limiting state to the avoidance state. When the anti-locking tongue 14 is retracted into the first tongue hole 11, the limiting member 22 moves to the avoidance state, so that unlocking can be achieved. The situation of operating the limiting member 22 and the anti-locking tongue 14 to unlock separately can be avoided, which facilitates unlocking.
[0063] Optionally, the circumferential side of the handle seat 40 is provided with a fifth abutment portion 42, and in the radial direction of the third gear 53, the third abutment portion 531 is spaced from the fifth abutment portion 42, that is, the distance between the third abutment portion 531 and the axis of the handle seat 40 is greater than the distance between the farthest end of the fifth abutment portion 42 and the axis of the handle shaft. That is, when the anti-locking tongue 14 is driven by the handle to retract the first tongue hole 11, the fifth abutment portion 42 can be abutted against the side of the first hook portion 551 toward the second hook portion 552, thereby pushing the linkage member 55 to move upward, and at this time, the second hook portion 552 hooks the fourth abutment portion 223, thereby driving the limiting member 22 to rotate, so that the limiting member 22 moves from the limiting state to the avoidance state. When the anti-locking tongue 14 retracts the first tongue hole 11, the limiting member 22 moves to the avoidance state, so that unlocking can be achieved. In this way, unlocking can be achieved by driving the motor 30 and the handle seat 40, which is convenient for users to use. Optionally, the handle base 40 is used to connect to the door handle inside, and the handle base 40 is separated from the door handle outside or connected through a clutch mechanism, so that the user can unlock the door by the handle inside the door, which is convenient for the user to use inside the door. At the same time, it is avoided that the door handle is directly unlocked by the outside.
[0064] In some embodiments, the transmission mechanism further includes a fourth gear 54, which is coaxially arranged with the first gear 51, and is transmission-connected with the drive motor 30 and meshed with the third gear 53. The fourth gear 54 is provided with two spaced first abutting portions 541 in the circumferential direction, and the first gear 51 is provided with a second abutting portion 511 extending between the two first abutting portions 541, and the spacing between the two first abutting portions 541 in the circumferential direction of the fourth gear 54 is greater than the width of the second abutting portion 511 in the circumferential direction of the fourth gear 54. When the fourth gear 54 rotates in any direction until the corresponding first abutting portion 541 abuts against the side of the second abutting portion 511, the first gear 51 is driven to rotate, thereby driving the anti-locking tongue 14 to move. In this way, the third gear 53 and the first gear 51 can be driven by the fourth gear 54, and the structure of the transmission mechanism can be simplified. The provision of the first abutting portion 541 and the second abutting portion 511 facilitates the drive motor 30 to drive the fourth gear 54 to reset.
[0065] In some embodiments, the part of the triggering latch 61 located in the lock housing 10 is provided with a hooking portion 611, and the limiting member 22 has an extension portion 224 extending toward the triggering latch 61, and the extension portion 224 is located on the side of the hooking portion 611 facing the third latch hole 13, so that when the triggering latch 61 extends toward the third latch hole 13, the hooking portion 611 abuts against the extension portion 224, so as to drive the limiting member 22 to move from the limiting state to the avoidance state. That is, when the first elastic member 63 pushes the triggering latch to extend from the third latch hole 13, the hooking portion 611 can hook the extension portion 224, thereby driving the limiting member 22 from rotating to the avoidance state, so as to ensure that the limiting member 22 can be kept in the avoidance state in the door opening state, so that the user can close the door at any time (when the cross latch 15 abuts against the door frame but has not yet entered the corresponding lock hole during the door closing process, the cross latch 15 can be moved toward the lock housing 10).
[0066] In some embodiments, the transmission mechanism further includes a second elastic member 57, which connects the limiting member 22 and the lock housing 10 and has elastic deformation to drive the limiting member 22 to move from the avoidance state to the limit state. That is, after closing the door, when the triggering latch 61 is pushed into the third latch hole 13 by the door frame, the limiting member 22 can be pushed to automatically rotate from the avoidance state to the limit state under the action of the second elastic member 57, thereby avoiding manual operation by the user, which greatly facilitates the use of the user. Optionally, the second elastic member 57 abuts against the extension portion 224, and the second elastic member 57 can be a spring.
[0067] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A lock body, characterized in that: include: A lock housing, wherein a first tongue hole and a second tongue hole are provided on one side of the lock housing, a reverse lock tongue is provided at the first tongue hole, and a cross oblique tongue is provided at the second tongue hole; A driving motor is disposed in the lock housing and is located at a side of the anti-locking tongue away from the second tongue hole, and the driving motor is transmission-connected to the anti-locking tongue through a transmission mechanism; A handle seat is rotatably mounted on the lock housing and is located at the anti-lock tongue. The handle seat is transmission-connected to the anti-lock tongue through the transmission mechanism. a limiting mechanism, which can be movably mounted on the lock housing and is located at the rear side of the cross oblique tongue, the limiting mechanism having a limiting state for limiting the retraction of the cross oblique tongue into the second tongue hole and a avoiding state for avoiding the cross oblique tongue, the limiting mechanism cooperates with the transmission mechanism to drive the limiting mechanism to move to the avoiding state when the transmission mechanism drives the anti-lock tongue to retract into the first tongue hole; and The lock core mechanism is arranged on the lock housing and is located on a side of the limiting mechanism away from the anti-lock tongue. The lock core mechanism cooperates with the transmission mechanism to drive the anti-lock tongue to retract into the first tongue hole.
2. The lock body according to claim 1, characterized in that: The lock body also includes a sensing device, which is arranged on a side of the cross oblique tongue away from the anti-lock tongue, and the sensing device is configured to be triggered when the door is closed. The drive motor is configured to drive the anti-lock tongue to extend out of the first tongue hole when the sensing device is triggered.
3. The lock body according to claim 2, characterized in that: The sensing device includes a triggering inclined tongue, a first sensor and a first elastic member. The lock housing is further provided with a third tongue hole, and the third tongue hole is located on a side of the second tongue hole away from the first tongue hole. The triggering inclined tongue is movably installed in the third tongue hole and has a first position extending out of the third tongue hole and a second position retracted into the third tongue hole. The first elastic member has elastic deformation for driving the triggering inclined tongue to move to the first position. The first sensor is disposed in the lock housing, and the first sensor is triggered when the triggering inclined tongue moves to the second position.
4. The lock body according to any one of claims 1 to 3, characterized in that: The portion of the anti-locking tongue located in the lock housing is provided with an avoidance hole, the handle seat is penetrated through the avoidance hole, and the size of the avoidance hole along the movement direction of the anti-locking tongue is larger than the diameter of the corresponding portion of the handle seat.
5. The lock body according to claim 4, characterized in that: The anti-locking tongue is provided with a rack portion, and the rack portion extends along the movement direction of the anti-locking tongue. The transmission mechanism includes a first gear and a second gear, the first gear is meshed with the rack portion and is transmission-connected to the driving motor, and the second gear is installed on the handle seat and meshed with the first gear; The second gear is provided with a mounting hole and an avoidance gap located on the wall of the mounting hole. The second gear is rotatably mounted on the handle seat through the mounting hole. The handle seat is provided with a limiting protrusion, and the limiting protrusion is correspondingly located in the avoidance gap. The width of the avoidance gap along the circumferential direction of the handle seat is greater than the width of the limiting protrusion along the circumferential direction of the handle seat.
6. The lock body according to claim 3, characterized in that: The limiting mechanism includes a mounting shaft and a limiting member, the mounting shaft is mounted on the lock housing, the limiting member is rotatably mounted on the mounting shaft, a limiting portion is provided on a side of the limiting member close to the cross oblique tongue, and a first abutting portion is provided on a side close to the lock core mechanism, in the limiting state, the limiting portion is located on a movement path when the cross oblique tongue is retracted into the second tongue hole, in the avoidance state, the limiting portion is located outside the movement path when the cross oblique tongue is retracted into the second tongue hole, and the lock core mechanism has a fork driven by a key, so as to directly or indirectly abut the first abutting portion through the fork, so as to drive the limiting member to move from the limiting state to the avoidance state.
7. The lock body according to claim 6, characterized in that: A second abutment is provided on the anti-lock tongue at a side away from the first tongue hole, the transmission mechanism includes a toggle member, the toggle member is rotatably mounted on the mounting shaft, the toggle member has a first arm extending toward the lock core mechanism and a second arm extending toward the anti-lock tongue, the second arm is located on a side of the second abutment facing the first tongue hole, the first arm is arranged corresponding to the shift fork of the lock core mechanism, so that the shift fork can push the first arm to drive the second arm to move toward the second abutment, thereby pushing the anti-lock tongue to retract into the first tongue hole.
8. The lock body according to claim 7, characterized in that: An abutment column is provided at the end of the first arm, and the abutment column is located at the side of the first abutment portion, so that when the shift fork abuts against the abutment column, the first abutment portion is pushed by the abutment column.
9. The lock body according to claim 6, characterized in that: The transmission mechanism also includes a third gear, a fourth gear and a linkage member, the third gear is rotatably sleeved on the handle base, the fourth gear is rotatably installed on the lock housing and meshes with the third gear, the fourth gear is transmission connected to the driving motor, the end face of the third gear is provided with a third abutment, the limiting member is provided with a fourth abutment, the linkage member is slidably installed between the third gear and the limiting member along the direction from the first tongue hole to the second tongue hole, and is provided with a first hook extending toward the third gear and a second hook extending toward the limiting member, the first hook cooperates with the third abutment, and the second hook cooperates with the fourth abutment, so as to drive the limiting member to move to the avoidance state when the handle base or the driving motor drives the anti-lock tongue to retract into the first tongue hole.
10. The lock body according to claim 6, characterized in that: The part of the triggering oblique tongue located in the lock housing is provided with a hooking portion, the limiting member has an extending portion extending toward the triggering oblique tongue, and the extending portion is located on a side of the hooking portion facing the third tongue hole, so that when the triggering oblique tongue extends toward the third tongue hole, the hooking portion abuts against the extending portion to drive the limiting member to move from the limiting state to the avoiding state; and / or, The transmission mechanism further includes a second elastic member, which connects the limiting member and the lock housing and has elastic deformation for driving the limiting member to move from the avoiding state to the limiting state.