CN211422173U - Door lock - Google Patents

Abstract

The utility model provides a door lock, including casing, main spring bolt subassembly, vice spring bolt subassembly and vice spring bolt plectrum. The shell body encloses an accommodating space. The main spring bolt assembly comprises a main spring bolt, a main connecting piece and a push rod matched with the lock cylinder. The secondary bolt assembly is movably mounted to the housing in a first direction and selectively extends or retracts into the housing. The auxiliary lock tongue shifting piece is rotatably arranged on the shell, when the main lock tongue retracts into the shell, one end of the auxiliary lock tongue shifting piece is abutted to the push rod to form transmission, and when the auxiliary lock tongue assembly extends out of the shell, the other end of the auxiliary lock tongue shifting piece is abutted to the auxiliary lock tongue assembly, so that when the push rod pushes the auxiliary lock tongue shifting piece to rotate, the auxiliary lock tongue shifting piece drives the auxiliary lock tongue assembly to retract into the shell. The utility model provides a door lock when main spring bolt subassembly is withdrawed, promotes vice spring bolt plectrum through installing the push rod on the main connecting piece and rotates, and vice spring bolt plectrum drives vice spring bolt subassembly and withdraws it, and simple structure, and application scope is wide.

Description

Door lock

Technical Field

The utility model relates to a theftproof technical field particularly, relates to a lock.

Background

The door lock is an indispensable part in life of people, is mainly used for doors or safes and the like, and is more and more widely applied. The existing door lock usually includes a plurality of bolts, such as a main bolt, a reverse bolt, a latch bolt, etc., wherein the latch bolt has a function of locking when the door is pushed indoors, is convenient to use, and has been widely used for various types of door locks. The latch bolt of the door lock on the market is mainly opened by rotating the handle, the mode is single, the structure is complex, and the application range of the door lock is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door lock to solve above-mentioned problem. The embodiment of the utility model provides an above-mentioned purpose is realized through following technical scheme.

The utility model provides a door lock, including casing, main spring bolt subassembly, vice spring bolt subassembly and vice spring bolt plectrum. The shell body encloses an accommodating space. The main spring bolt assembly comprises a main spring bolt, a main connecting piece and a push rod matched with the lock cylinder, the main spring bolt is exposed out of the shell, the main connecting piece is mechanically connected with the main spring bolt and arranged in the accommodating space, the main connecting piece is movably arranged on the shell along a first direction, and the push rod is arranged on the main connecting piece. The secondary bolt assembly is movably mounted to the housing in a first direction and selectively extends or retracts into the housing. The auxiliary lock tongue shifting piece is rotatably arranged on the shell, when the main lock tongue retracts into the shell, one end of the auxiliary lock tongue shifting piece is abutted to the push rod to form transmission, and when the auxiliary lock tongue assembly extends out of the shell, the other end of the auxiliary lock tongue shifting piece is abutted to the auxiliary lock tongue assembly, so that when the push rod pushes the auxiliary lock tongue shifting piece to rotate, the auxiliary lock tongue shifting piece drives the auxiliary lock tongue assembly to retract into the shell.

In one embodiment, the main connecting piece comprises a main connecting plate and a guide part which are connected with each other, the main connecting plate is fixedly connected with the main bolt, the guide part is arranged towards the shell, the push rod moves along a second direction under the guide effect of the guide part so as to selectively abut against or separate from the auxiliary bolt shifting piece, and the second direction is perpendicular to the first direction.

In an embodiment, the guide part comprises a guide post, the push rod is provided with a guide groove, the guide groove extends along the second direction, and the guide post is slidably embedded in the guide groove.

In an embodiment, the push rod includes the body of rod and the fixed column of fixed connection, and the guide way is seted up in the body of rod, the fixed column is from the body of rod to the direction protrusion of keeping away from the main connecting piece, and the lock still includes first elastic component, and first elastic component is connected between guide post and fixed column.

In one embodiment, the push rod further comprises a blocking piece, the blocking piece is connected to the rod body and protrudes in the direction away from the shell, and when the main lock tongue retracts into the shell, the blocking piece is abutted to the auxiliary lock tongue shifting piece to form transmission.

In one embodiment, the main link is formed with a sliding slot extending in a second direction perpendicular to the first direction, and the push rod is at least partially inserted into the sliding slot to move in the extending direction of the sliding slot.

In an embodiment, the door lock further comprises a lock core, the lock core comprises a lock core main body and a toggle piece, the lock core main body is installed in the shell, the toggle piece is rotatably installed in the lock core main body, the toggle piece is abutted against the push rod to push the push rod when the toggle piece rotates, or the toggle piece and the push rod are separated from each other.

In one embodiment, the auxiliary lock tongue shifting piece comprises an abutting end, a hinged end and a transmission end which are sequentially connected, the hinged end is hinged to the shell, when the main lock tongue retracts into the shell, the abutting end abuts against the push rod, the auxiliary lock tongue assembly comprises an auxiliary lock tongue and an auxiliary connecting piece which are mechanically connected, the auxiliary lock tongue selectively extends out of or retracts into the shell, the auxiliary connecting piece is arranged in the accommodating space, and when the auxiliary lock tongue extends out of the shell, the transmission end abuts against the auxiliary connecting piece.

In one embodiment, the secondary connector comprises a fixedly connected connecting body and a projection, the connecting body being fixedly connected with the secondary latch, the projection abutting against the drive end when the secondary latch extends out of the housing plate.

In one embodiment, the secondary latch assembly further comprises a fixed member fixedly mounted to the housing and a second elastic member connected between the secondary connecting member and the fixed member.

Compared with the prior art, the utility model provides a door lock when main spring bolt subassembly is withdrawed, promotes vice spring bolt plectrum through installing the push rod on the main connecting piece and rotates, and vice spring bolt plectrum drives vice spring bolt subassembly and withdraws it, and simple structure, and application scope is wide.

Drawings

In order to more clearly illustrate the technical solution of the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a state diagram of the door lock provided by the embodiment of the present invention when the secondary bolt is extended at the first viewing angle.

Fig. 2 is a state diagram of the door lock provided by the embodiment of the present invention when the secondary bolt is extended at the second viewing angle.

Fig. 3 is a schematic structural diagram of a main bolt assembly of a door lock according to an embodiment of the present invention at a viewing angle.

Fig. 4 is a schematic structural diagram of a main bolt assembly of a door lock according to another view angle.

Fig. 5 is a schematic partial structural view of the door lock according to the embodiment of the present invention when the auxiliary bolt is extended at the first viewing angle.

Fig. 6 is a schematic view of a splitting structure of a door lock provided by an embodiment of the present invention.

Fig. 7 is a schematic structural view of a door lock provided in an embodiment of the present invention in a state where an auxiliary bolt is retracted.

Detailed Description

To facilitate an understanding of the present embodiments, the present embodiments will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, the present invention provides a door lock 1, which includes a housing 10, a main bolt assembly 20, an auxiliary bolt assembly 30, and an auxiliary bolt moving plate 40. The housing 10 encloses an accommodating space. The main bolt assembly 20 includes a main bolt 21, a main connecting member 23 and a push rod 25 for cooperating with the key cylinder 60, the main bolt 21 is exposed from the housing 10, the main connecting member 23 is mechanically connected with the main bolt 21 and disposed in the accommodating space, the main connecting member 23 is movably mounted to the housing 10 along a first direction D1, and the push rod 25 is mounted to the main connecting member 23. The sub-latch bolt assembly 30 is movably mounted to the housing 10 in a first direction D1 and selectively extends or retracts into the housing 10. The auxiliary bolt shifting piece 40 is rotatably installed on the housing 10, when the main bolt 21 retracts into the housing 10, one end of the auxiliary bolt shifting piece 40 abuts against the push rod 25 to form transmission, and when the auxiliary bolt assembly 30 extends out of the housing 10, the other end of the auxiliary bolt shifting piece 40 abuts against the auxiliary bolt assembly 30, so that when the push rod 25 pushes the auxiliary bolt shifting piece 40 to rotate, the auxiliary bolt shifting piece 40 drives the auxiliary bolt assembly 30 to retract into the housing 10.

Referring to fig. 2, specifically, the housing 10 encloses an accommodating space, and the housing 10 includes a bottom shell 11 and a mounting plate 13, and the accommodating space is formed by enclosing the bottom shell 11 and the mounting plate 13.

The bottom case 11 is a substantially semi-enclosed rectangular frame structure, that is, the bottom case 11 is composed of a bottom plate and four side plates connected to the bottom plate, wherein the bottom case 11 can be used for installing the key cylinder 60, the fork assembly 70, the main bolt assembly 20, the sub bolt assembly 30, and the like. In this embodiment, the bottom case 11 further defines a connecting member limiting groove extending along the second direction D2, wherein the number of the connecting member limiting groove is at least one, and when the number of the connecting member limiting grooves is multiple, the extending directions of the connecting member limiting grooves are the same. The second direction D2 is perpendicular to the first direction D1, and the connecting element limiting groove is in a strip shape, and may be in a rectangular shape or a track shape. The link limiting groove may be used to guide the sub-latch assembly 30 such that the sub-latch assembly 30 may move on the surface of the bottom chassis 11 along the second direction D2.

The mounting plate 13 is substantially rectangular plate-shaped, and the mounting plate 13 extends along the second direction D2 and is connected to the bottom case 11, and specifically, the mounting plate 13 is mounted on one side of the bottom case 11, and the mounting plate 13 can be used to mount the door lock 1 on a door panel. The mounting plate 13 includes a plurality of mounting holes 131, and the mounting holes 131 may be used to pass through fixing members 38 such as screws to fix the door lock 1. The mounting plate 13 further comprises a plurality of avoiding holes 133, the positions of the avoiding holes 133 correspond to the positions of the lock tongues, and the lock tongues of the door lock 1 can extend out of the mounting plate 13 from the accommodating space through the arrangement of the avoiding holes 133, so that the door lock is matched with the door frame to achieve the locking effect.

Referring to fig. 1, 3 and 4, the main latch bolt assembly 20 is disposed in the bottom case 11 and can extend out of or retract into the mounting plate 13 along a first direction D1. The main bolt assembly 20 includes a main bolt 21, a main link 23, and a push rod 25 for cooperating with the key cylinder 60.

The main latch bolt 21 is exposed from the housing 10. In this embodiment, the main bolt 21 has a square bolt structure, that is, the cross section is square or rectangular, the main bolt 21 includes four identical bolts, and the four bolts are arranged side by side.

In other embodiments, the main bolt 21 may also be oval, circular, hexagonal or other shapes in cross section. In other embodiments, the number of main bolt 21 may be one, two, three or more.

The main connecting piece 23 is mechanically connected with the main bolt 21 and is disposed in the accommodating space, wherein the connecting manner may be welding. The main link 23 is movably mounted to the bottom case 11 of the housing 10 in the first direction D1. Specifically, the bottom housing 11 may be provided with a guiding structure 111 as shown in fig. 5, the guiding structure 111 may be a guiding groove, a sliding rail, or a fixing post, for example, and accordingly, a guiding post, a sliding groove, or the like may be provided on the main link 23 to cooperate with the guiding structure 111 of the bottom housing 11, so that the main link 23 may move along the first direction D1.

The main connecting member 23 includes a main connecting plate 231 and a guiding portion 233, the main connecting plate 231 is substantially a rectangular frame structure, the main connecting plate 231 is fixedly connected to the main bolt 21, the guiding portion 233 is disposed toward the housing 10, and the guiding portion 233 can be used for guiding the push rod 25 so as to move the push rod 25 along a limited direction.

In the present embodiment, the guide portion 233 includes a guide post 2331, and the guide post 2331 protrudes from the main link 23 toward the bottom case 11. The number of the guide posts 2331 is two, and the two guide posts 2331 are spaced apart, and a connecting line between the two guide posts 2331 has an angle with the second direction D2. By the arrangement, the push rod 25 arranged on the main connecting piece 23 can move more stably, and the push rod 25 is prevented from being locked.

In other embodiments, the number of the guiding columns 2331 may be one, three, four or more, which is sufficient for the guiding part 233 to guide the push rod 25.

The main link 23 defines a sliding slot 235, and the sliding slot 235 extends along a second direction D2. Specifically, main link 23 further includes a limit plate 237, where limit plate 237 is plate-shaped, and the cross section of limit plate 237 is substantially "U" shaped, and main link plate 231 is embedded in limit plate 237 and connected to main lock tongue 21. In the present embodiment, the limit plate 237 is connected to the main connection plate 231. The slide groove 235 is defined by a limit plate 237 and a main connecting plate 231.

In some embodiments, the chute 235 may also open directly into the main connection plate 231. In other embodiments, the sliding chute 235 can also open directly to the limiting plate 237.

In the present embodiment, the push rod 25 is mounted to the main link 23, and the push rod 25 moves in the second direction D2 under the guiding action of the guiding portion 233 to selectively abut against or separate from the sub latch paddle 40. And the push rod 25 is at least partially inserted into the slide groove 235 to move in the extending direction of the slide groove 235. That is, the guide 233 and the slide groove 235 are combined, so that the main link 23 can be smoothly moved in the second direction D2.

In this embodiment, the push rod 25 is formed with a guide groove 255, the guide groove 255 extends along the second direction D2, and the guide groove 255 can be used for slidably inserting the guide post 2331. The number of guide grooves 255 is the same as that of guide posts 2331, and is two.

In other embodiments, the number of the guide grooves 255 may be one, three, four, or more, and may be sufficient for the sliding engagement of the guide posts 2331.

The push rod 25 comprises a rod body 251 and a fixing column 253 which are fixedly connected, the guide groove 255 is arranged on the rod body 251, one end of the rod body 251 and the lock cylinder 60 form a transmission relation, and the fixing column 253 protrudes from the rod body 251 to the direction far away from the main connecting piece 23.

In this embodiment, the push rod 25 further includes a blocking piece 257, the blocking piece 257 is a rectangular plate-shaped structure, the blocking piece 257 is connected to the rod 251 and protrudes in a direction away from the housing 10, and a plane of the blocking piece 257 is perpendicular to a plane of the rod 251, and the blocking piece 257 can be shifted by the lock cylinder 60 and moved along the second direction D2. When the main lock tongue 21 retracts into the housing 10, the blocking piece 257 can be used to abut against the auxiliary lock tongue shifting piece 40 and form transmission, specifically, when the lock cylinder 60 shifts the push rod 25 to move along the second direction D2, the blocking piece 257 abuts against the auxiliary lock tongue shifting piece 40, and since the auxiliary lock tongue shifting piece 40 is rotatably installed in the housing 10, the blocking piece 257 drives the auxiliary lock tongue shifting piece 40 to rotate.

In some embodiments, the plane of the stop 257 may be connected to the plane of the rod 251 at other angles. In other embodiments, the flap 257 may also be a rod-like structure.

In this embodiment, the door lock 1 further includes a first elastic member 50, the first elastic member 50 is connected between the guide post 2331 and the fixing post 253, the first elastic member 50 can be used for restoring the push rod 25, and when the acting force on the push rod 25 is removed, the push rod 25 moves to the initial position under the action of the first elastic member 50.

Referring to fig. 5 and 6, the sub latch assembly 30 is movably mounted to the housing 10 in a first direction D1 and selectively extends or retracts into the housing 10. In the present embodiment, the secondary latch bolt assembly 30 is a latch bolt structure. In other embodiments, the secondary latch bolt assembly 30 may also be an anti-lock or other latch bolt configuration.

The sub-latch bolt assembly 30 includes a sub-latch bolt 32 and a sub-connector 34 that are mechanically connected, and the connection mode may be an integral setting or welding mode. The sub latch 32 is selectively extended or retracted from the housing 10, and in the present embodiment, the sub latch 32 is exposed from the mounting plate 13. The sub link 34 is movably mounted to the bottom case 11 in the first direction D1 and serves to drive the sub latch tongue 32. Specifically, a guide region may be provided on bottom case 11 to move sub link 34 in first direction D1.

The secondary bolt assembly 30 further includes a fixing member 38 and a second elastic member 36, the fixing member 38 is fixedly installed in the housing 10, and the second elastic member 36 is connected between the secondary connecting member 34 and the fixing member 38. The second elastic member 36 can be used for restoring the secondary latch 32, for example, when the door is closed, the secondary latch 32 is first pressed by the door frame to retract into the mounting plate 13, and when the pressing action disappears, the secondary latch 32 can be driven to extend out of the mounting plate 13 due to the restoring action of the second elastic member 36.

The sub-connector 34 is disposed in the receiving space. The secondary connector 34 comprises a fixedly connected connecting body fixedly connected with the secondary latch 32 and a projection abutting against the driving end 45 when the secondary latch 32 is extended out of the housing 10 plate.

The sub latch paddle 40 is rotatably mounted to the housing 10. The secondary latch blade 40 includes an abutting end 41, a hinged end 43, and a transmission end 45 connected in series. Hinged end 43 is hinged to housing 10; when the main bolt 21 retracts into the housing 10, the contact end 41 contacts the push rod 25; the driving end 45 may abut the secondary connector 34 of the secondary latch assembly 30 when the secondary latch 32 is extended out of the housing 10, the driving end 45 being generally hook-shaped.

The door lock 1 may further include a key cylinder 60, the key cylinder 60 includes a key cylinder main body 61 and a toggle member 63, the key cylinder main body 61 is installed in the housing 10, the toggle member 63 is rotatably installed in the key cylinder main body 61, the toggle member 63 abuts against the push rod 25 to push the push rod 25 when the toggle member 63 rotates, or the toggle member 63 and the push rod 25 are separated from each other. In the present embodiment, in the viewing angle of fig. 5, when the toggle member 63 rotates clockwise, the push rod 25 can be pushed to move along the second direction D2.

The door lock 1 further includes a fork assembly 70, the fork assembly 70 is rotatably mounted to the bottom case 11, and a rotation axis of the fork assembly 70 is perpendicular to the bottom case 11. The fork assembly 70 is in transmission connection with the main link 23, and the transmission mode can be gear engagement transmission, that is, the fork assembly 70 includes a transmission gear piece which is engaged with the gear of the main link 23 to form transmission. The fork assembly 70 may be used to mount a handle to move the main link 23 in the first direction D1 by turning the handle.

Referring to fig. 1 and 7, the following is the principle that the lock cylinder 60 drives the secondary bolt 32 to retract into the housing 10:

when the main lock tongue 21 retracts into the housing 10, one end of the auxiliary lock tongue shifting piece 40 abuts against the push rod 25 to form transmission, and when the auxiliary lock tongue assembly 30 extends out of the housing 10, the other end of the auxiliary lock tongue shifting piece 40 abuts against the auxiliary lock tongue assembly 30, so that when the push rod 25 pushes the auxiliary lock tongue shifting piece 40 to rotate, the auxiliary lock tongue shifting piece 40 drives the auxiliary lock tongue assembly 30 to retract into the housing 10. Specifically, when the key is inserted into the key cylinder 60, the toggle member 63 is driven to rotate, the toggle member 63 drives the push rod 25 to move along the second direction D2, the push rod 25 further pushes the auxiliary latch blade 40 to rotate around the bottom shell 11, and the auxiliary latch blade 40 rotates to finally drive the auxiliary latch 32 to retract.

To sum up, the utility model provides a door lock 1, when main spring bolt subassembly 20 withdraws, promotes vice lock tongue plectrum 40 through installing push rod 25 on main connecting piece 23 and rotates, and vice lock tongue plectrum 40 drives vice lock tongue subassembly 30 and withdraws it, and simple structure, and application scope is wide.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A door lock, comprising:

the shell surrounds an accommodating space;

the main spring bolt assembly comprises a main spring bolt, a main connecting piece and a push rod, the main spring bolt is used for being matched with the lock cylinder, the main spring bolt is exposed out of the shell, the main connecting piece is mechanically connected with the main spring bolt and is arranged in the accommodating space, the main connecting piece is movably arranged on the shell along a first direction, and the push rod is arranged on the main connecting piece;

the auxiliary bolt assembly is movably arranged on the shell along the first direction and can selectively extend out of or retract into the shell; and

vice spring bolt plectrum, vice spring bolt plectrum rotationally install in the casing, work as main spring bolt retraction during the casing, the one end butt of vice spring bolt plectrum in the push rod forms the transmission, and vice spring bolt subassembly stretches out during the casing, the other end butt of vice spring bolt plectrum in vice spring bolt subassembly, with the push rod promotes when vice spring bolt plectrum rotates, vice spring bolt plectrum drives vice spring bolt subassembly retraction in the casing.

2. The door lock of claim 1, wherein the main connecting member includes a main connecting plate and a guide portion connected to each other, the main connecting plate is fixedly connected to the main bolt, the guide portion is disposed toward the housing, the push rod is moved in a second direction under the guide of the guide portion to selectively abut against or separate from the sub bolt paddle, and the second direction is perpendicular to the first direction.

3. The door lock of claim 2, wherein the guide portion comprises a guide post, the push rod defines a guide slot, the guide slot extends along the second direction, and the guide post is slidably engaged with the guide slot.

4. The door lock of claim 3, wherein the push rod comprises a rod body and a fixed column which are fixedly connected, the guide groove is formed in the rod body, the fixed column protrudes from the rod body in a direction away from the main connecting piece, and the door lock further comprises a first elastic piece connected between the guide column and the fixed column.

5. The door lock of claim 4, wherein the push rod further comprises a blocking piece, the blocking piece is connected to the rod body and protrudes in a direction away from the shell, and when the main bolt retracts into the shell, the blocking piece is abutted with the auxiliary bolt shifting piece to form transmission.

6. The door lock of claim 1, wherein the main link defines a slot extending in a second direction perpendicular to the first direction, and the push rod is at least partially inserted into the slot for movement in the direction of extension of the slot.

7. The door lock of claim 1, further comprising a lock cylinder, wherein the lock cylinder comprises a lock cylinder body and a toggle member, the lock cylinder body is mounted in the housing, the toggle member is rotatably mounted in the lock cylinder body, and the toggle member abuts against the push rod to push the push rod when the toggle member rotates, or the toggle member and the push rod are disengaged from each other.

8. The door lock of claim 1, wherein the auxiliary bolt moving piece comprises an abutting end, a hinged end and a transmission end which are sequentially connected, the hinged end is hinged to the housing, when the main bolt retracts into the housing, the abutting end abuts against the push rod, the auxiliary bolt assembly comprises an auxiliary bolt and an auxiliary connecting piece which are mechanically connected, the auxiliary bolt selectively extends out of or retracts into the housing, the auxiliary connecting piece is arranged in the accommodating space, and when the auxiliary bolt extends out of the housing, the transmission end abuts against the auxiliary connecting piece.

9. The door lock of claim 8, wherein the secondary connecting member includes a connecting body and a projection, the connecting body is fixedly connected with the secondary bolt, and the projection abuts against the driving end when the secondary bolt extends out of the housing plate.

10. The door lock of claim 8, wherein the secondary bolt assembly further comprises a fixed member fixedly mounted to the housing and a second elastic member connected between the secondary connecting member and the fixed member.

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