A passive lock with handle locking function

Abstract

The present invention provides a passive lock with a handle locking function, comprising a housing, a bolt hole is provided on the housing for the main bolt on the active lock to be inserted, a rotating connector and a linkage mechanism are provided inside the housing, the rotating connector is connected to the handle of the passive lock, a protrusion is provided on the rotating connector, and the linkage mechanism comprises a blocking rod, and the main bolt is inserted into the bolt hole and then drives the linkage mechanism, so that the blocking rod moves to conflict with the protrusion, so that the rotating connector cannot rotate. The present invention avoids damage to the main bolt when the door is opened when the main bolt is fixed in the passive lock, protects the main bolt of the active lock, and prolongs the service life of the door lock.

Description

Technical Field

[0001] The invention belongs to the technical field of locks, and in particular relates to a passive lock with a handle locking function. Background Art

[0002] A double door, such as a residential entrance door, has an active door (a door used for regular entry and exit) and a passive door (usually fixed, but can be opened if necessary). The passive lock on the passive door usually includes an upper latch and a lower latch (i.e., a lock tongue of a floor lock) that extend into the top or bottom of the door frame to form a stable connection. Common locking elements, such as a deadbolt and a bolt (or a lock tongue), are provided on the active lock of the active door and extend into the passive lock to secure the double door when locked.

[0003] However, when the handle of the traditional passive lock is twisted, the lock tongue of the top and bottom lock will retract, while the fixing bolt of the active lock is still inserted in the passive lock. If the door is pushed at this time, the fixing bolt of the active lock will be misplaced or broken, endangering the safety of the door. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art and provide a passive lock with a handle locking function. When the main lock tongue of the active lock is fixed in the passive lock, the handle of the passive lock is locked, thereby protecting the main lock tongue of the active lock and extending the service life of the door lock.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A passive lock with a handle locking function, comprising a housing, a bolt hole is provided on the housing for inserting a main bolt on an active lock, a rotating connector and a linkage mechanism are provided inside the housing, the rotating connector is connected to the handle of the passive lock, and a protrusion is provided on the rotating connector;

[0007] The linkage mechanism comprises a blocking rod, and the linkage mechanism is driven after the main lock tongue is inserted into the lock tongue hole, so that the blocking rod moves to conflict with the protrusion, so that the rotating connector cannot rotate.

[0008] Preferably, the linkage mechanism further comprises a first transmission member and a second transmission member slidably disposed in the housing, and the blocking rod is in transmission connection with the second transmission member;

[0009] One end of the first transmission member extends into the lock tongue hole, and a sliding groove is provided on the second transmission member corresponding to the other end of the first transmission member. When the first transmission member slides relative to the sliding groove, the second transmission member drives the blocking rod to move until it contacts the protrusion.

[0010] Preferably, the sliding groove is provided with an inclined surface, and when the first transmission member slides along the inclined surface, the second transmission member moves in a straight line, and the movement direction of the second transmission member and the movement direction of the first transmission member form an angle with each other. The second transmission member is provided with transmission blocks in pairs, and the blocking rod is provided between the paired transmission blocks, and the blocking rod moves synchronously with the movement of the transmission blocks until it conflicts with the protrusion.

[0011] Preferably, a plurality of reset springs are arranged on the linkage mechanism, and the reset springs reset the linkage mechanism when the main lock tongue exits the lock tongue hole.

[0012] Preferably, the plurality of return springs include a first return spring and a second return spring, the first return spring is arranged on an end of the first transmission member close to the sliding groove, the second return spring is arranged on an end of the second transmission member away from the sliding groove, the compression or extension direction of the first return spring is in the same line as the movement direction of the first transmission member, and the compression or extension direction of the second return spring is in the same line as the movement direction of the second transmission member.

[0013] Preferably, a sky lock, a ground lock and a gear set are also provided inside the shell, a main gear is provided on the rotating connecting head, the main gear rotates synchronously with the rotating connecting head, the sky lock, the ground lock are transmission connected with the gear set, and the gear set is meshingly connected with the main gear.

[0014] Preferably, a first spur rack is provided at the lower end of the sky lock, and a second spur rack is provided at the upper end of the ground lock, and the gear group includes a first gear and a second gear, the first gear is respectively meshed and connected with the main gear and the second spur rack, the second gear is arranged between the first spur rack and the second spur rack, and the second gear is respectively meshed and connected with the first spur rack and the second spur rack, the first spur rack and the second spur rack move linearly synchronously with the rotation of the second gear, and the movement directions of the first spur rack and the second spur rack are opposite.

[0015] Preferably, the rotating connecting head is provided with a handle through hole, and the connecting end of the handle is inserted into the handle through hole. When the handle is lifted, the sky lock moves upward and the ground lock moves downward. When the handle is pressed downward, the sky lock moves downward and the ground lock moves upward.

[0016] Preferably, the rotating connector is further provided with a third return spring, and the third return spring returns the lifted or pressed handle to an initial position.

[0017] Preferably, a blocking block is provided inside the shell beside the rotating connector, one end of the third return spring is in contact with one side of the blocking block, and the other end of the third return spring is in contact with the other side of the blocking block, wherein when the rotating connector rotates to one side, the third return spring is in contact with the blocking block and deformed, and the deformation direction is opposite to the rotation direction of the rotating connector.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this scheme, a rotating connector is provided inside the shell of the passive lock, and the rotating connector is connected to the handle of the passive lock. A protrusion is provided on the rotating connector. The main lock tongue of the active lock is inserted from the lock tongue hole on the passive lock shell and drives the linkage mechanism, so that the blocking rod of the linkage mechanism moves to conflict with the protrusion, so that the rotating connector cannot rotate. At this time, the handle of the passive lock cannot rotate either, thereby avoiding damage to the main lock tongue when the door is opened when the main lock tongue of the active lock is fixed in the passive lock, protecting the main lock tongue of the active lock, and extending the service life of the door lock; a plurality of reset springs are provided on the linkage mechanism, so that the linkage mechanism can be reset after the main lock tongue exits the lock tongue hole.

[0020] It should be understood that within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features specifically described below (such as embodiments) can be combined with each other to form a new or preferred technical solution. Due to space limitations, they will not be described one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the handle locking structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the sky and earth lock of the present invention.

[0025] in:

[0026] 1-passive lock, 11-first transmission member, 111-first return spring, 12-second transmission member, 121-sliding groove, 122-transmission block, 123-second return spring, 13-blocking rod, 14-rotating connector, 141-protrusion, 142-blocking block, 143-third return spring, 15-main gear, 16 sky lock, 161-first straight rack, 17-ground lock, 171-second straight rack, 18-first gear, 19-second gear;

[0027] 2-active lock, 21-main lock tongue. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] like Figures 1 to 3As shown, this embodiment discloses a passive lock with a handle locking function, including a housing, a bolt hole (not shown in the figure) is provided on the housing, for the main bolt 21 on the active lock 2 to be inserted, a rotating connector 14 and a linkage mechanism are provided inside the housing, the rotating connector 14 is connected to the handle (not shown in the figure) of the passive lock 1, a protrusion 141 is provided on the rotating connector 14, and the linkage mechanism includes a blocking rod 13, and the main bolt 21 is inserted into the bolt hole to drive the linkage mechanism, and transmission occurs inside the linkage mechanism, so that the blocking rod 13 moves to conflict with the protrusion 141, so that the rotating connector 14 cannot rotate downward. At this time, the handle of the passive lock 1 cannot rotate downward, and the downward pressing of the handle is an unlocking action, that is, the unlocking function of the passive lock is locked, and the main bolt 21 of the active lock 2 is prevented from being damaged by opening the door when the main bolt 21 is fixed in the passive lock 1, thereby protecting the main bolt 21 of the active lock 1 and extending the service life of the door lock.

[0033] Preferably, in the present embodiment, the linkage mechanism further includes a first transmission member 11 and a second transmission member 12 slidably arranged inside the shell, a blocking rod 13 is transmission-connected to the second transmission member 12, one end of the first transmission member 11 is extended into and arranged in the lock tongue hole, the first transmission member 11 moves in the insertion direction as the main lock tongue 21 is inserted, a sliding groove 121 is arranged on the other end of the second transmission member 12 corresponding to the first transmission member 11, the sliding groove 121 is provided with an inclined surface, when the first transmission member 11 slides along the inclined surface, the second transmission member 12 moves in a straight line, the movement direction of the second transmission member 12 and the movement direction of the first transmission member 11 form an angle with each other, the second transmission member 12 is provided with transmission blocks 122 in pairs, the blocking rod 13 is arranged between the paired transmission blocks 122, the blocking rod 13 moves synchronously with the movement of the transmission blocks 122 until it conflicts with the protrusion 141.

[0034] Specifically, in the present embodiment, the position of the first transmission member 11 corresponds to the insertion direction of the main lock tongue 21, the position of the second transmission member 12 is perpendicular to the position of the first transmission member 11, and the sliding groove 121 is arranged on the second transmission member 12 at a position corresponding to the other end of the first transmission member 11, so that the first transmission member 11 can slide in and out, and the first transmission member 11 is supported by the main lock tongue 21 and moves linearly in the direction of insertion of the main lock tongue 21, and contacts the inclined surface of the sliding groove 121 of the second transmission member 12 during the movement, converting the sliding of the first transmission member 11 and the inclined surface into the translation of the second transmission member 12, and the translation direction is perpendicular to the insertion direction of the main lock tongue 21 and away from the sliding groove 121. When the second transmission member 12 moves, a pair of transmission blocks 122 fixedly arranged on the second transmission member 12 follow the movement, driving the blocking rod 13 arranged between the transmission blocks 122 to move. The blocking rod 13 is specifically an "L"-shaped rod, and the slightly shorter end of the blocking rod 13 is arranged between the two transmission blocks 122. When the transmission block 122 moves, the long end of the blocking rod 13 rotates around its center of gravity to the position of the protrusion 141 and contacts the protrusion 141, blocking the protrusion 141 from moving downward, thereby realizing the locking of the unlocking direction of the rotating connector 14.

[0035] Preferably, in the present embodiment, the linkage mechanism is provided with a first return spring 111 and a second return spring 123. The first return spring 111 is arranged on one end of the first transmission member 11 close to the sliding groove 121, and the second return spring 123 is arranged on one end of the second transmission member 12 away from the sliding groove 121. The compression or extension direction of the first return spring 111 is in the same straight line with the movement direction of the first transmission member 11. When the main lock tongue 21 withdraws from the lock tongue hole, the first return spring 111 and the second return spring 123 respectively reset the first transmission member 11 and the second transmission member 12, and the protrusion 141 rotates with the rotating connector 14 without conflicting with the blocking rod 13.

[0036] Specifically, in the present embodiment, the first return spring 111 is arranged at one end of the first transmission member 12 that slides into the sliding groove 121, and the second return spring 123 is arranged at one end of the second transmission member 12 that is away from the sliding groove 121, and the housing is provided with a receiving groove at this end. When the main lock tongue 21 withdraws from the lock tongue hole, the first transmission member 11 is no longer subjected to the thrust of the main lock tongue 21, but only to the spring force of the first return spring 111, and the spring force is in the direction of the withdrawal of the main lock tongue 21, so that the first transmission member 11 is reset. During the process of the first transmission member resetting 11, the sliding groove 121 of the second transmission member 12 slides relative to the first transmission member 11, and the second transmission member 12 moves relatively in a translational direction in the direction of the sliding groove 121. The spring force of the second return spring 123 is also in the direction of the sliding groove 121, so that the second transmission member 12 is reset. During the resetting process of the second transmission member 12, the transmission block 122 drives the blocking rod 13 to rotate around its center of gravity, and the blocking rod 13 also returns to the initial position. At this time, the protrusion 141 rotates with the rotating connector 14 without conflicting with the blocking rod 13, that is, the locking state of the handle disappears, and the handle can be rotated to operate the passive lock 1.

[0037] Preferably, in the present embodiment, a sky lock 16, a ground lock 17, a first gear 18 and a second gear 19 are further provided inside the housing, and a main gear 15 is provided on the rotating connector 14, and the main gear 15 rotates synchronously with the rotating connector 14. A first spur rack 161 is provided at the lower end of the sky lock 16, and a second spur rack 171 is provided at the upper end of the ground lock 17. The first gear 18 is meshed and connected with the main gear 15 and the second spur rack 171 respectively, and the second gear 19 is provided between the first spur rack 161 and the second spur rack 171, and the second gear 19 is meshed and connected with the first spur rack 161 and the second spur rack 171 respectively, and the first spur rack 161 and the second spur rack 171 move linearly synchronously with the rotation of the second gear 19, and the movement directions of the first spur rack 161 and the second spur rack 171 are opposite. The rotating connector 14 is provided with a handle through hole, and the connecting end of the handle is inserted into the handle through hole. When the handle is lifted, the sky lock 16 moves upward and the ground lock 17 moves downward. When the handle is pressed down, the sky lock 16 moves downward and the ground lock 17 moves upward.

[0038] Specifically in the present embodiment, lifting the handle drives the rotating connector 14 to rotate counterclockwise, and the rotating connector 14 drives the main gear 15 to rotate counterclockwise synchronously. The first gear 18 and the main gear 15 are externally meshed gears, that is, the first gear 18 rotates clockwise synchronously with the counterclockwise rotation of the main gear 15, thereby driving the second spur rack 171 to move downward, and then the second spur rack 171 moves downward while driving the second gear 19 to rotate counterclockwise, thereby synchronously driving the first spur rack 161 to move upward. At this point, the upward movement of the sky lock 16 and the downward movement of the ground lock 17 are realized, so that the sky lock and the ground lock are fixed to the door frame. When the handle is pressed down, the rotating connector 14 is driven to rotate clockwise, and the rotating connector 14 drives the main gear 15 to rotate clockwise synchronously. The first gear 18 rotates counterclockwise synchronously with the clockwise rotation of the main gear 15, thereby driving the second spur rack 171 to move upward. Then, the second spur rack 171 moves upward while driving the second gear 19 to rotate clockwise, thereby synchronously driving the first spur rack 161 to move downward, realizing the downward movement of the sky lock 16 and the upward movement of the ground lock 17, and retracting the sky and ground locks.

[0039] Preferably, in the present embodiment, the rotating connector 14 is provided with a third return spring 143, and a blocking block 142 is provided inside the shell beside the rotating connector 14, one end of the third return spring 143 is in conflict with one side of the blocking block 142, and the other end of the third return spring 143 is in conflict with the other side of the blocking block 142, wherein, when the rotating connector 14 rotates to one side, the third return spring 143 is in conflict with the blocking block 142 and deformed, and the deformation direction is opposite to the rotation direction of the rotating connector 14.

[0040] Specifically in the present embodiment, when the handle is lifted, the rotating connector 14 rotates counterclockwise, and the third return spring 143 follows the synchronous counterclockwise rotation. The end of the third return spring 143 located on the lower side generates an interaction force with the blocking block 142 to generate elastic deformation. After the handle is released, the elastic deformation causes the third return spring 143 to rotate clockwise, thereby driving the rotating connector 14 to rotate synchronously clockwise, and the handle follows the rotation and moves down to the initial position, which is generally a horizontal position; similarly, when the handle is pressed down, the rotating connector 14 rotates clockwise, and the third return spring 143 follows the synchronous clockwise rotation. The end of the third return spring 143 located on the upper side generates an interaction force with the blocking block 142 to generate elastic deformation. After the handle is released, the elastic deformation causes the third return spring 143 to rotate counterclockwise, thereby driving the rotating connector 14 to rotate synchronously counterclockwise, and the handle follows the rotation and moves up to the initial position.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A passive lock with a handle locking function, comprising a housing, characterized in that: The housing is provided with a bolt hole for inserting the main bolt of the active lock, and a rotating connector and a linkage mechanism are provided inside the housing, the rotating connector is connected to the handle of the passive lock, and a protrusion is provided on the rotating connector; The linkage mechanism includes a blocking rod, and the linkage mechanism is driven after the main lock tongue is inserted into the lock tongue hole, so that the blocking rod moves to conflict with the protrusion, so that the rotating connector cannot rotate; The housing is also provided with a sky lock, a ground lock and a gear set, the rotating connector is provided with a main gear, the main gear rotates synchronously with the rotating connector, the sky lock, the ground lock are transmission-connected with the gear set, and the gear set is meshed with the main gear; The rotating connector is also provided with a third return spring, and the third return spring enables the handle that is lifted or pressed down to return to an initial position.

2. A passive lock with a handle locking function according to claim 1, characterized in that: The linkage mechanism further comprises a first transmission member and a second transmission member slidably disposed in the housing, and the blocking rod is transmission-connected to the second transmission member; One end of the first transmission member extends into the lock tongue hole, and a sliding groove is provided on the second transmission member corresponding to the other end of the first transmission member. When the first transmission member slides relative to the sliding groove, the second transmission member drives the blocking rod to move until it contacts the protrusion.

3. A passive lock with a handle locking function according to claim 2, characterized in that: The sliding groove is provided with an inclined surface, and when the first transmission member slides along the inclined surface, the second transmission member moves in a straight line, and the movement direction of the second transmission member and the movement direction of the first transmission member form an angle with each other. The second transmission member is provided with transmission blocks in pairs, and the blocking rod is provided between the paired transmission blocks. The blocking rod moves synchronously with the movement of the transmission blocks until it conflicts with the protrusion.

4. A passive lock with a handle locking function according to claim 2 or 3, characterized in that: The linkage mechanism is provided with a plurality of return springs, and the return springs reset the linkage mechanism when the main lock tongue exits the lock tongue hole.

5. A passive lock with a handle locking function according to claim 4, characterized in that: The plurality of return springs include a first return spring and a second return spring, the first return spring is arranged on an end of the first transmission member close to the sliding slot, the second return spring is arranged on an end of the second transmission member away from the sliding slot, the compression or extension direction of the first return spring is in the same straight line with the movement direction of the first transmission member, and the compression or extension direction of the second return spring is in the same straight line with the movement direction of the second transmission member.

6. A passive lock with a handle locking function according to claim 1, characterized in that: A first spur rack is provided at the lower end of the sky lock, and a second spur rack is provided at the upper end of the ground lock. The gear set includes a first gear and a second gear. The first gear is meshed with the main gear and the second spur rack respectively. The second gear is provided between the first spur rack and the second spur rack, and the second gear is meshed with the first spur rack and the second spur rack respectively. The first spur rack and the second spur rack move linearly synchronously with the rotation of the second gear, and the movement directions of the first spur rack and the second spur rack are opposite.

7. A passive lock with a handle locking function according to claim 6, characterized in that: The rotating connecting head is provided with a handle through hole, and the connecting end of the handle is inserted into the handle through hole. When the handle is lifted, the sky lock moves upward and the ground lock moves downward. When the handle is pressed downward, the sky lock moves downward and the ground lock moves upward.

8. The passive lock with a handle locking function according to claim 1, characterized in that: A blocking block is arranged inside the shell beside the rotating connector, one end of the third return spring is in contact with one side of the blocking block, and the other end of the third return spring is in contact with the other side of the blocking block, wherein when the rotating connector rotates to one side, the third return spring is in contact with the blocking block and deformed, and the deformation direction is opposite to the rotation direction of the rotating connector.

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