CN220869086U - Safety door lock - Google Patents

Abstract

The utility model discloses a safety door lock, comprising: the door catch assembly comprises a swing arm and a socket, wherein the swing arm is rotatably arranged, the socket is fixedly arranged, the free end of the swing arm is provided with a plug-in part, and the plug-in part can be plugged and buckled with the socket; the locking assembly comprises a lock seat, a locking piece movably arranged on the lock seat, a socket arranged on the lock seat, and a first spring driving the locking piece to prevent the plug-in part from separating from the socket; the unlocking assembly comprises a first sliding block which is slidably arranged on the lock seat, a wedge-shaped surface for transmission is arranged between the first sliding block and the lock catch piece, and the first sliding block can be abutted with the lock catch piece to enable the lock catch piece to be far away from the plug-in connection part; the lock core assembly comprises a cam driving the first sliding block to be abutted against the locking piece and a lock body which is rotatably arranged, and the lock body is in transmission connection with the cam. The utility model is convenient to use and operate, has better locking operation experience and meets the use requirement.

Description

Safety door lock

Technical Field

The utility model relates to the technical field of locks, in particular to a safety door lock.

Background

In the prior art, a novel door latch with a coded lock is provided, and the patent number is CN216588159U, and the door latch comprises a lock catch seat, a door fastener, a coded lock assembly which is arranged in the lock catch seat and used for locking or unlocking the door fastener, and a buckle inserting seat which is used for inserting and buckling one end part of the door fastener.

The coded lock door catch is generally installed on a cabinet door, and sometimes the coded lock door catch is not required to be locked when in use, and only the door catch and the eye-splice seat are required to be buckled so as to close the cabinet door, however, when the existing coded lock door catch is buckled with the eye-splice seat in a buckling manner, the coded lock component is required to be rotated simultaneously, and the coded lock component is not easy to operate, so that the eye-splice operation is more troublesome, and therefore, a safety door catch lock is required to be designed so as to meet the requirement that the coded lock component is not required to be rotated when the door catch and the eye-splice seat are buckled.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the safety door lock disclosed by the utility model is convenient to use and operate, better in locking operation experience and capable of meeting the use requirements.

According to an embodiment of the first aspect of the present utility model, a safety door lock includes: the door catch assembly comprises a swing arm and a socket, wherein the swing arm is rotatably arranged, the socket is fixedly arranged, the free end of the swing arm is provided with a plug-in part, and the plug-in part can be plugged and buckled with the socket; the locking assembly comprises a lock seat, a locking piece movably arranged on the lock seat, a socket arranged on the lock seat, and a first spring driving the locking piece to prevent the plug-in part from separating from the socket; the unlocking assembly comprises a first sliding block which is slidably arranged on the lock seat, a wedge-shaped surface for transmission is arranged between the first sliding block and the lock catch piece, and the first sliding block can be abutted with the lock catch piece to enable the lock catch piece to be far away from the plug-in connection part; the lock core assembly comprises a cam driving the first sliding block to be abutted against the locking piece and a lock body which is rotatably arranged, and the lock body is in transmission connection with the cam.

According to some embodiments of the utility model, the locking piece is provided with a locking rod penetrating through the lock seat, a jack is arranged on one side of the plug-in connection part, close to the lock seat, and the locking rod can be inserted into the jack.

According to some embodiments of the utility model, the unlocking assembly further comprises a second spring driving the first slider to be far away from the locking piece, the first slider is provided with a limiting portion, one end, far away from the locking piece, of the second spring is abutted against the limiting portion, and one end, close to the locking piece, of the second spring is fixedly arranged on the lock seat.

According to some embodiments of the utility model, the first slider is provided with two abutting portions, the wedge-shaped surface is arranged on the abutting portions, the locking piece is provided with a guiding portion, and the guiding portion is accommodated between the two abutting portions to pass through.

According to some embodiments of the utility model, the socket is provided with a slot for accommodating the plug-in part, the lock base is provided with a first mounting hole, the first mounting hole is arranged close to the slot, and the lock base is connected with the cabinet door after a bolt passes through the first mounting hole.

According to some embodiments of the utility model, the door latch assembly further comprises a mounting seat rotatably connected with the swing arm, the mounting seat is provided with at least one second mounting hole, the mounting seat is connected with the door frame after a bolt passes through the second mounting hole, the door latch assembly further comprises a cover rotatably arranged on the mounting seat, the cover coaxially rotates with the swing arm, the cover is positioned on one side of the mounting seat close to the swing arm, and the cover is used for covering the second mounting hole.

According to some embodiments of the utility model, the swing arm has a rotation shaft, the mounting seat is provided with a barrel part sleeved with the rotation shaft, a third spring is sleeved on the radial outer surface of the barrel part, and two ends of the third spring are respectively abutted with the cover and the swing arm.

According to some embodiments of the utility model, the cover is provided with a first protrusion, and the swing arm is provided with a second protrusion, and when the plug-in part is plugged into the socket, the first protrusion abuts against the second protrusion, so that the swing arm and the mounting seat clamp the cover.

According to some embodiments of the utility model, the mounting is provided with a boss, the mask is provided with a groove, and the boss cooperates with the groove to limit the mask rotation.

According to some embodiments of the utility model, a recess is formed on a side of the cover, which is close to the first protrusion, and extends along a rotation direction of the swing arm, and the recess is used for accommodating the second protrusion to pass through.

According to some embodiments of the utility model, the lock base is provided with a third mounting hole, the lock base is connected with the cabinet door after the bolt passes through the third mounting hole, the lock body is provided with a rotating base rotatably arranged on the lock base, the rotating base is in transmission connection with the cam, the rotating base is provided with a knob, and the knob is provided with a cover plate, and the cover plate is used for covering the third mounting hole.

The safety door lock disclosed by the embodiment of the utility model has at least the following beneficial effects:

1. According to the utility model, the swing arm, the socket and the plug-in part are arranged, so that the swing arm can rotate, the plug-in part is plugged in the socket, the coded lock assembly is not required to rotate, the cabinet door is temporarily fixed, the requirement of the door fastener for plugging in the plug-in seat is met, and the coded lock assembly is not required to rotate, so that the operation is more convenient.

2. According to the cabinet door locking device, the lock seat, the locking piece and the first spring are arranged, and the locking piece stretches out of the lock seat under the drive of the elastic force of the first spring, so that the locking piece can prevent the swing arm from rotating, the inserting part cannot be separated from the socket, the swing arm is locked, and further the cabinet door is locked.

3. According to the utility model, the lock body is rotated by arranging the first sliding block, the wedge-shaped surface, the cam and the lock body, so that the cam rotates along with the lock body, and therefore, the cam can drive the first sliding block to translate, the first sliding block is contacted with the locking piece through the wedge-shaped surface, so that the locking piece overcomes the spring force, and the locking piece is far away from the plug-in part, and therefore, the swing arm is enabled to recover a rotatable state, and further, the unlocking of the cabinet door is realized.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a safety door lock according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the safety door lock of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the safety door lock of FIG. 1 with the lock base removed;

FIG. 4 is a schematic view of the safety door lock of FIG. 1 from another perspective;

Fig. 5 is a schematic view of a safety door lock of fig. 1 from another perspective.

Reference numerals: 100-swing arm, 110-socket, 120-plug, 130-lock base, 140-lock catch, 150-first spring, 160-first slider, 170-wedge face, 180-cam, 190-lock lever, 200-jack, 210-second spring, 220-stop, 230-abutment, 240-guide, 250-slot, 260-first mounting hole, 270-mount, 280-second mounting hole, 290-mask, 300-first boss, 310-second boss, 320-boss, 330-groove, 340-avoidance slot, 350-third mounting hole, 360-swivel base, 370-knob, 380-cover plate, cipher wheel-390, lock plate-400, abutment face-410, second slider-420, fourth spring-430, spindle-440, barrel-450, third spring-460, recess-470.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A safety door lock according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1, a safety door lock according to an embodiment of the present utility model includes a door latch assembly, a locking assembly, an unlocking assembly, and a key cylinder assembly.

The door catch assembly comprises a swing arm 100 which can be rotatably arranged and a socket 110 which is fixedly arranged, wherein the free end of the swing arm 100 is provided with a plug-in connection part 120, and the plug-in connection part 120 can be plugged with the socket 110.

The locking assembly comprises a lock seat 130, a locking piece 140 movably arranged on the lock seat 130, a socket 110 arranged on the lock seat 130, and a first spring 150 driving the locking piece 140 to prevent the plug-in connection part 120 from separating from the socket 110, wherein the lock seat 130 is fixedly connected with the cabinet door.

The unlocking assembly comprises a first slider 160 slidably arranged on the lock base 130, a wedge-shaped surface 170 for driving is arranged between the first slider 160 and the lock catch member 140, and the first slider 160 can be abutted with the lock catch member 140 to enable the lock catch member 140 to be far away from the plug-in connection portion 120.

The lock core assembly comprises a cam 180 driving the first sliding block 160 to abut against the lock catch piece 140 and a lock body which is rotatably arranged, and the lock body is in transmission connection with the cam 180.

In some embodiments of the present utility model, the socket 110 is provided with a slot 250 for receiving the plug portion 120, the lock base 130 is provided with a first mounting hole 260, the first mounting hole 260 is disposed near the slot 250, and the lock base 130 is connected to the cabinet door after the bolt passes through the first mounting hole 260.

Therefore, when the lock is locked, the plug portion 120 is plugged into the socket 110, the plug portion 120 can cover the first mounting hole 260, and the first mounting hole 260 cannot be seen, so that the lock seat 130 is not easy to detach, thereby greatly improving the safety of the lock, and being more attractive.

In some embodiments of the present utility model, the door latch assembly further includes a mounting base 270 rotatably coupled to the swing arm 100, the mounting base 270 being provided with at least one second mounting hole 280, the mounting base 270 being coupled to the door frame after the bolt passes through the second mounting hole 280, the door latch assembly further including a cover 290 rotatably provided to the mounting base 270, the cover 290 being coaxially rotatable with the swing arm 100, the cover 290 being positioned on a side of the mounting base 270 adjacent to the swing arm 100, the cover 290 being configured to cover the second mounting hole 280.

Thus, after the mounting seat 270 is mounted, the cover 290 can cover the two second mounting holes 280, so that the second mounting holes 280 cannot be seen, and the mounting seat 270 is not easy to detach and break, and is more attractive.

It should be noted that, the mounting seat 270 is provided with a first connecting plate, so that the door frame is made of metal or glass, and the first connecting plate is glued to the door frame.

In some embodiments of the present utility model, the swing arm 100 has a rotation shaft 440, the mounting seat 270 is provided with a barrel portion 450 sleeved with the rotation shaft 440, a third spring 460 is sleeved on the radial outer surface of the barrel portion 450, and two ends of the third spring 460 are respectively abutted with the cover 290 and the swing arm 100.

Therefore, the cover 290 is pressed against the mounting seat 270 by the third spring 460, so that the cover 290 is fixed and is not easy to loosen.

Specifically, the cover 290 further has a through hole for receiving the cylinder 450, and the rotating shaft 440 is further provided with a snap spring, which prevents the rotating shaft 440 from being mounted on the mounting seat 270.

In some embodiments of the present utility model, the covering 290 is provided with a first protrusion 300, the swing arm 100 is provided with a second protrusion 310, and when the socket 110 is plugged into the plug 120, the first protrusion 300 abuts against the second protrusion 310, so that the covering 290 is clamped between the swing arm 100 and the mounting seat 270, and thus, in the locked state, the covering 290 cannot move along the axial direction of the swing arm 100, and the covering 290 cannot move and is not easy to loosen.

In some embodiments of the present utility model, the mount 270 is provided with a boss 320 and the shroud 290 is provided with a recess 330, the boss 320 cooperating with the recess 330 to limit rotation of the shroud 290.

Therefore, when the first protrusion 300 abuts against the second protrusion 310, the cover 290 cannot move along the axial direction of the swing arm 100, and at the same time, the boss 320 and the groove 330 can cooperate to cover 290 from rotating, so that the second mounting hole 280 cannot be exposed, thereby improving the security of the lock.

In some embodiments of the present utility model, the mask 290 is provided with a relief groove 340 near the side of the first protrusion 300, the relief groove 340 extends along the rotation direction of the swing arm 100, and the relief groove 340 is used for receiving the second protrusion 310 to pass through.

Thus, the swing arm 100 is rotated to cause the first protrusion 300 and the second protrusion 310 to be dislocated, and the cover 290 can move along the axial direction of the swing arm 100 against the spring force of the third spring 460, so that when the socket portion 120 and the socket 110 are not inserted, the cover 290 can rotate to expose the second mounting hole 280, so that the bolt can penetrate into the second mounting hole 280, and the mounting seat 270 is mounted and fixed.

In some embodiments of the present utility model, circular arc-shaped recesses 470 are provided at edge positions of both sides of the mounting seat 270, and the recesses 470 are provided near the third springs 460, so that the recesses 470 can be engaged with fingers, facilitating the extraction of the mask 290 by the installer, so that the mask 290 can be moved axially along the swing arm 100.

In some embodiments of the present utility model, the positioning assembly further includes a rotating shaft 440 coaxially connected to the rotation center of the swing arm 100, and a plurality of abutment surfaces 410 are disposed on the radial outer surface of the rotating shaft 440, and further includes a second slider 420 and a fourth spring 430 driving the second slider 420 to abut against the abutment surfaces 410, so that the swing arm 100 can be positioned.

In some embodiments of the present utility model, the lock base 130 is provided with the third mounting hole 350, the lock base 130 is connected to the cabinet door after the bolt passes through the third mounting hole 350, the lock body is provided with the rotating base 360 rotatably arranged on the lock base 130, the rotating base 360 is in transmission connection with the cam 180, the rotating base 360 is provided with the knob 370, the knob 370 is provided with the cover plate 380, and the cover plate 380 is used for covering the third mounting hole 350, so that the third mounting hole 350 cannot be seen, the lock base 130 is not easy to detach, the security of the lock is improved, and the lock is more attractive.

It should be noted that, the lock base 130 is provided with a second connecting plate, so that the door leaf is made of metal or glass, and the second connecting plate is glued to the door frame.

In some embodiments of the present utility model, the lock body further includes a combination wheel 390, a locking plate 400, etc. disposed on the rotating base 360, and the rotating base 360 can be locked by using the locking plate 400, so that the lock body can realize combination locking.

In some embodiments of the present utility model, the locking piece 140 has a locking rod 190 penetrating through the lock base 130, and a jack 200 is disposed on a side of the plugging portion 120 near the lock base 130, and the locking rod 190 can be inserted into the jack 200, so as to fasten the locking piece 140 to the socket 110, so as to achieve locking.

In some embodiments of the present utility model, the unlocking assembly further includes a second spring 210 driving the first slider 160 away from the locking member 140, the first slider 160 is provided with a limiting portion 220, one end of the second spring 210 away from the locking member 140 abuts against the limiting portion 220, and one end of the second spring 210 close to the locking member 140 is fixedly disposed on the lock base 130, so that, in the unlocking state, the second spring 210 drives the first slider 160 to reset, and the first spring 150 can also enable the locking member 140 to prevent the plug portion 120 from being separated from the socket 110.

In some embodiments of the present utility model, the first slider 160 is provided with two abutting portions 230, the wedge surface 170 is disposed on the abutting portions 230, the locking member 140 is provided with a guiding portion 240, and the guiding portion 240 is accommodated between the two abutting portions 230, so that the locking member 140 moves stably.

Thus, the present embodiment has the following effects:

1. According to the utility model, the swing arm 100, the socket 110 and the plug-in part 120 are arranged, so that the swing arm 100 can rotate, the plug-in part 120 is plugged into the socket 110, and the cabinet door is temporarily fixed without rotating the coded lock assembly, thereby meeting the requirement that the coded lock assembly is not required to be rotated when the door fastener is plugged into the plug-in seat, and facilitating the operation.

2. According to the utility model, the lock seat 130, the lock catch member 140 and the first spring 150 are arranged, and the lock catch member 140 extends out of the lock seat 130 under the drive of the elastic force of the first spring 150, so that the lock catch member 140 can prevent the swing arm 100 from rotating, the plug-in connection part 120 cannot be separated from the socket 110, the swing arm 100 is locked, and further, the cabinet door is locked.

3. According to the utility model, the lock body is rotated by arranging the first sliding block 160, the wedge-shaped surface 170, the cam 180 and the lock body, so that the cam 180 rotates along with the lock body, and therefore, the cam 180 can drive the first sliding block 160 to translate, the first sliding block 160 is contacted with the locking piece 140 through the wedge-shaped surface 170, so that the locking piece 140 overcomes the spring force, and the locking piece 140 is far away from the plug-in connection part 120, and therefore, the swing arm 100 is enabled to recover a rotatable state, and further, the unlocking of the cabinet door is realized.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A safety door latch, comprising:

The door catch assembly comprises a swing arm (100) and a socket (110) which are rotatably arranged, wherein the free end of the swing arm (100) is provided with a plug-in part (120), and the plug-in part (120) can be plugged and buckled with the socket (110);

The locking assembly comprises a lock seat (130), a locking piece (140) movably arranged on the lock seat (130), the socket (110) is arranged on the lock seat (130), and the locking assembly further comprises a first spring (150) for driving the locking piece (140) to prevent the plug-in connection part (120) from being separated from the socket (110);

The unlocking assembly comprises a first sliding block (160) which is slidably arranged on the lock seat (130), a wedge-shaped surface (170) for transmission is arranged between the first sliding block (160) and the lock catch (140), and the first sliding block (160) can be abutted with the lock catch (140) to enable the lock catch (140) to be far away from the plug-in connection part (120);

The lock core assembly comprises a cam (180) driving the first sliding block (160) to be abutted against the locking piece (140) and a lock body which is rotatably arranged, and the lock body is in transmission connection with the cam (180).

2. The safety door lock according to claim 1, wherein the locking member (140) has a locking rod (190) penetrating through the lock base (130), the plugging portion (120) is provided with a jack (200) near one side of the lock base (130), and the locking rod (190) can be inserted into the jack (200).

3. The safety door lock according to claim 1, wherein the unlocking assembly further comprises a second spring (210) driving the first slider (160) to be away from the locking piece (140), the first slider (160) is provided with a limiting portion (220), one end, away from the locking piece (140), of the second spring (210) is abutted to the limiting portion (220), and one end, close to the locking piece (140), of the second spring (210) is fixedly arranged on the lock seat (130).

4. The safety door lock according to claim 1, wherein the first slider (160) is provided with two abutting portions (230), the wedge-shaped surface (170) is provided on the abutting portions (230), the locking member (140) is provided with a guiding portion (240), and the guiding portion (240) is accommodated between the two abutting portions (230).

5. The safety door lock according to claim 1, wherein the socket (110) is provided with a slot (250) for accommodating the plug-in portion (120), the lock base (130) is provided with a first mounting hole (260), the first mounting hole (260) is disposed close to the slot (250), and the lock base (130) is connected to the cabinet door after the bolt passes through the first mounting hole (260).

6. The safety door lock according to claim 1, wherein the door latch assembly further comprises a mounting seat (270) rotatably connected with the swing arm (100), the mounting seat (270) is provided with at least one second mounting hole (280), the mounting seat (270) is connected with the door frame after the bolt passes through the second mounting hole (280), the door latch assembly further comprises a covering (290) rotatably arranged on the mounting seat (270), the covering (290) and the swing arm (100) rotate coaxially, the covering (290) is located on one side of the mounting seat (270) close to the swing arm (100), and the covering (290) is used for covering the second mounting hole (280).

7. The safety door lock according to claim 6, wherein the swing arm (100) has a rotating shaft (440), the mounting seat (270) is provided with a barrel portion (450) sleeved with the rotating shaft (440), a third spring (460) is sleeved on the radial outer surface of the barrel portion (450), and two ends of the third spring (460) are respectively abutted with the cover (290) and the swing arm (100).

8. The safety door lock according to claim 6, wherein the cover (290) is provided with a first protrusion (300), the swing arm (100) is provided with a second protrusion (310), and when the plug part (120) is plugged into the socket (110), the first protrusion (300) abuts against the second protrusion (310), so that the swing arm (100) and the mounting seat (270) clamp the cover (290).

9. A safety door lock according to claim 8, wherein the mounting block (270) is provided with a boss (320), the shroud (290) is provided with a recess (330), and the boss (320) cooperates with the recess (330) to limit rotation of the shroud (290).

10. The safety door lock according to claim 1, wherein the lock base (130) is provided with a third mounting hole (350), the lock base (130) is connected with a cabinet door after a bolt passes through the third mounting hole (350), the lock body is provided with a rotating base (360) rotatably arranged on the lock base (130), the rotating base (360) is in transmission connection with the cam (180), the rotating base (360) is provided with a knob (370), the knob (370) is provided with a cover plate (380), and the cover plate (380) is used for covering the third mounting hole (350).