CN221590718U - Back locking structure and door lock - Google Patents

Abstract

The utility model discloses a back locking structure and a door lock; the back locking structure comprises a first shell, a second shell, a rotating wheel and a back locking piece; the first shell is provided with a first through hole, the edge of the first through hole is provided with a first notch, the second shell is provided with a second through hole, the edge of the second through hole is provided with a second notch, the rotating wheel is rotationally connected between the first through hole and the second through hole, and the edge of the rotating wheel is provided with a notch groove; when the back locking piece simultaneously clamps the first notch, the notch groove and the second notch, back locking is realized. According to the utility model, the first notch, the notch groove and the second notch are clamped by the counter locking piece at the same time, so that counter locking is realized, the counter locking structure of a conventional door lock is simplified, the product cost is reduced, and the assembly efficiency of the product is improved.

Description

Back locking structure and door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a back locking structure and a door lock.

Background

In door and window hardware fittings, the back locking structure of door lock mainly falls into two kinds:

1. The device comprises a locking piece, a driving piece for driving the locking piece to move, a shell and a rotating wheel; when the door lock is required to be locked or unlocked, the lock cylinder or the simple lock cylinder is used for driving the driving piece to rotate and swing, and the driving piece drives the locking piece to directly lock or indirectly lock the rotating wheel, so that the rotating wheel is limited to rotate (the rotating wheel is released when the door lock is unlocked), and the function of locking or unlocking is achieved;

2. The device comprises a locking piece, a shell, a rotating wheel and a transmission piece which moves in a matched manner with the rotating wheel; when the door lock is required to be locked or unlocked, the lock cylinder or the simple lock cylinder is used for poking the locking piece, and the locking piece clamps the transmission piece which is in matched connection with the rotating wheel, so that the rotating wheel is indirectly limited to rotate (the rotating wheel is released when the door lock is unlocked), and the function of locking or unlocking is achieved;

Both the above schemes can be realized by the necessary structures of the locking member and the driving member or the transmission member, and have the problems of complex structure, inconvenient assembly and high cost.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provides a back locking structure and a door lock.

In order to solve the technical problems, the utility model adopts the following technical scheme:

In a first aspect, an embodiment of the present utility model provides a locking structure, including a first housing, a second housing, a rotating wheel, and a locking member; the first shell is provided with a first through hole, the edge of the first through hole is provided with a first notch, the second shell is provided with a second through hole, the edge of the second through hole is provided with a second notch, the rotating wheel is rotationally connected between the first through hole and the second through hole, and the edge of the rotating wheel is provided with a notch groove; when the back locking piece simultaneously clamps the first notch, the notch groove and the second notch, back locking is realized.

In a specific embodiment, the counter-locking member is movably disposed, and a bump is disposed on the counter-locking member, where the bump is used to block the first notch, the notch groove, and the second notch.

In a specific embodiment, the counter locking member is rotatably disposed, and a first recess and a second recess are disposed on the counter locking member, so that counter locking is achieved when the first recess and the second recess face away from the first notch and the second notch.

In a specific embodiment, the counter-locking element is in a round stick shape, and the first recess and the second recess are located in a middle section of the counter-locking element.

In a specific embodiment, the notch groove is in a circular arc shape.

In a specific embodiment, the counter-locking element is in a flat strip shape, and the protruding block is located in the middle section of the counter-locking element.

In a specific embodiment, the longitudinal section of the bump is M-shaped.

In a specific embodiment, the first notch and the second notch have the same structure, and the first notch is U-shaped.

In a specific embodiment, the counter lock structure further comprises a latch bolt assembly and a spring; the spring bolt assembly is movably connected with the second shell, one end of the rotating wheel is in transmission connection with the spring bolt assembly, and the other end of the rotating wheel is in abutting connection with the spring.

Compared with the prior art, the anti-lock structure has the beneficial effects that: the first notch, the notch groove and the second notch are clamped simultaneously through the counter locking piece, so that counter locking is realized, the counter locking structure of the conventional door lock is simplified, the product cost is reduced, and the assembly efficiency of the product is improved.

In a second aspect, an embodiment of the present utility model provides a door lock, including a counter-locking structure as described above.

Compared with the prior art, the door lock has the beneficial effects that: the first notch, the notch groove and the second notch are clamped simultaneously through the back locking piece, so that back locking is achieved, a conventional door lock structure is simplified, product cost is reduced, and assembly efficiency of products is improved.

The utility model is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a locking structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a first locking structure according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a locking structure according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a counter lock structure according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a second housing according to the present utility model;

FIG. 6 is a schematic view of a latch bolt assembly according to the present utility model;

FIG. 7 is a schematic diagram of a wheel according to an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a second embodiment of the present utility model;

FIG. 9 is a schematic structural view of a second locking element according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram of a second embodiment of a rotor according to the present utility model;

FIG. 11 is a schematic diagram of a three-lock structure according to an embodiment of the present utility model;

fig. 12 is a schematic structural diagram II of a three-locking structure according to an embodiment of the present utility model;

FIG. 13 is a schematic cross-sectional view of a three-lock structure according to an embodiment of the present utility model;

FIG. 14 is an exploded view of a three-lock structure according to an embodiment of the present utility model;

FIG. 15 is a schematic view of a three-wheel structure according to an embodiment of the present utility model;

fig. 16 is a schematic structural diagram of a transmission member provided by the present utility model.

In the figure: 10. a first housing; 11. a first through hole; 12. a first notch; 20. a second housing; 21. a second through hole; 22. a second notch; 23. a passage hole; 24. a support block; 25. a connecting column; 26. an extension boss; 30. a rotating wheel; 31. a notch groove; 32. polygonal through holes; 33. a first side wing; 34. a second side wing; 341. a limit protrusion; 35. a driving section; 351. driving the protrusion; 40. a counter lock; 41. a bump; 42. a first recess; 43. a second recess; 50. a latch bolt assembly; 51. a bolt; 511. a limiting plate; 52. a tongue main body; 521. a driving arm; 60. a spring; 70. a transmission member; 71. a chute; 80. and a cover plate.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some 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 present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Referring to fig. 1 to 16, the present utility model discloses an embodiment of a back locking structure, which is applied to a lock box, and specifically includes a first housing 10, a second housing 20, a rotating wheel 30 and a back locking member 40; the first shell 10 is provided with a first through hole 11, a first notch 12 is formed in the edge of the first through hole 11, the second shell 20 is provided with a second through hole 21, a second notch 22 is formed in the edge of the second through hole 21, the rotating wheel 30 is positioned between the first through hole 11 and the second through hole 21, the rotating wheel 30 is rotationally connected with the first through hole 11 and the second through hole 21, and a notch groove 31 is formed in the edge of the rotating wheel 30; when the counter locking member 40 simultaneously locks the first notch 12, the notch groove 31 and the second notch 22, counter locking is achieved.

Specifically, the first notch 12, the notch groove 31 and the second notch 22 are simultaneously clamped by the counter lock 40, so that counter locking is realized, a counter locking structure of a conventional door lock is simplified, the product cost is reduced, and the assembly efficiency of the product is improved.

In one embodiment, the wheel 30 is further provided with polygonal through holes 32.

Specifically, the polygonal through hole 32 is used to connect with a driving shaft of the door handle, and when the door handle is turned, the rotating wheel 30 is driven to rotate.

First, referring to fig. 1 to 7, there is shown:

In one embodiment, the counter locking member 40 is provided with a protrusion 41, and the protrusion 41 is used for clamping the first notch 12, the notch groove 31 and the second notch 22.

Specifically, in use, the locking element 40 passes through the notch 31 and penetrates the first through hole 11 and the second through hole 21, in the non-locked state, the protrusion 41 is located between the first casing 10 and the second casing 20 or outside the first casing 10 and the second casing 20, at this time, the rotation diameter of the locking element 40 at the thickness plane position of the first casing 10 and the second casing 20 is smaller than the diameter of the first through hole 11 and the second through hole 21, at this time, the rotating runner 30 can drive the locking element 40 to rotate together, the first side wing 33 of the runner 30 is in transmission connection with the driving arm 521 of the locking bolt assembly 50, the locking bolt 51 is driven to retract into the second casing 20 along the channel hole 23, and after the force of the rotating runner 30 is removed, the runner 30 is reset to the initial position under the action of the spring 60.

In one embodiment, the counter lock structure further includes a latch bolt assembly 50 and a spring 60; the latch bolt assembly 50 is movably connected with the second housing 20, one end of the rotating wheel 30 is in transmission connection with the latch bolt assembly 50, and the other end is abutted with the spring 60.

Specifically, when wheel 30 is rotated, wheel 30 moves latch bolt assembly 50, at which time spring 60 is compressed; when the force of the rotating wheel 30 is removed, the wheel 30 is restored to the original position by the elastic force of the spring 60.

In an embodiment, the latch bolt assembly 50 includes a latch bolt 51 and a latch bolt main body 52, the second housing 20 is provided with a channel hole 23 corresponding to the latch bolt 51, the latch bolt main body 52 is provided with a driving arm 521, one end of the rotating wheel 30 is provided with a first flank 33, the other end is provided with a second flank 34, the first flank 33 is in transmission connection with the driving arm 521, and the second flank 34 is abutted with the spring 60.

Specifically, when the rotating wheel 30 is rotated, the first side wing 33 drives the driving arm 521 to move, so that the locking tongue 51 is retracted into the second housing 20 along the passage hole 23, and at this time, the spring 60 is compressed; when the force of the rotating wheel 30 is removed, the second side wing 34 moves under the elastic force of the spring 60, so as to drive the rotating wheel 30 to return to the initial position.

In an embodiment, the second side wing 34 is provided with a limiting protrusion 341, and one end of the spring 60 is sleeved on the limiting protrusion 341, so that when the spring 60 is compressed or extended, the movement direction of the spring 60 is always on a straight line, so that the elastic force of the spring 60 is kept stable, and the movement stroke of the second side wing 34 is consistent.

In an embodiment, the second housing 20 is further provided with a supporting block 24, and one end of the spring 60 abuts against the supporting block 24, and the other end abuts against the second side wing 34.

Specifically, a cavity for placing the spring 60 is formed between the support block 24 and the second housing 20, and one end of the spring 60 abuts against the support block 24, and the other end abuts against the second side wing 34, so that when the spring 60 is compressed or extended, the movement direction of the spring 60 is always on a straight line, and the elastic force of the spring 60 is ensured to be stable.

In an embodiment, the supporting block 24 is also provided with a protrusion for limiting the spring 60, so that the situation that the spring 60 is displaced can be effectively avoided.

In an embodiment, a limiting plate 511 is further disposed on a side of the locking bolt 51 near the supporting block 24, and when the locking bolt 51 is retracted into the second housing 20, the limiting plate 511 is in abutting connection with the supporting block 24, so as to perform a limiting function.

In an embodiment, the second housing 20 is further provided with connecting posts 25, wherein one connecting post 25 is located on one side of the second side wing 34 away from the spring 60, and when the rotating wheel 30 is located at the initial position, the second side wing 34 is in abutting connection with the connecting post 25, so as to perform a limiting function, and the second side wing 34 cannot be separated from the spring 60. One of the connecting posts 25 is located at one side of the driving arm 521 far away from the locking bolt 51, and when the locking bolt 51 is retracted into the second housing 20, the driving arm 521 is in interference connection with the connecting post 25, so as to perform a limiting function. The first housing 10 is connected with the connection post 25 by a screw to achieve connection between the first housing 10 and the second housing 20.

In an embodiment, the bolt 51 and the bolt main body 52 are integrally formed, so that the strength is high, only one set of die is needed in production, and the production cost is reduced.

In an embodiment, the runner 30, the first side wing 33 and the second side wing 34 are integrally formed, so that the strength is high, only one set of mold is needed during production, and the production cost is reduced.

In an embodiment, the outer sides of the first through hole 11 and the second through hole 21 are respectively provided with a convex groove, and the rotating wheel 30 is rotationally connected with the convex grooves, so that the structure is compact and the sealing performance is strong.

In one embodiment, the counter lock 40 is a counter lock bar.

Specifically, the counter lock 40 is flat, and the protrusion 41 is located at the middle section of the counter lock 40.

In one embodiment, the longitudinal cross section of the bump 41 is M-shaped.

Specifically, the M-shaped projection 41 is high in strength and good in locking effect.

In one embodiment, the first notch 12 and the second notch 22 have the same structure, and the first notch 12 has a U shape.

Specifically, the notch of the U shape is convenient for the up-and-down movement of the lug 41, and when the notch is clamped by the lug 41, the notch of the U shape is uniformly stressed, and the locking effect is more stable.

Preferably, the notch 31 is also U-shaped to correspond to the shape of the counter lock 40.

Specifically, when the door lock needs to be locked, the position of the locking bar is moved (either along the length direction or perpendicular to the length direction), so that the protrusion 41 of the locking bar simultaneously blocks the first notch 12, the notch groove 31 and the second notch 22, and the rotating wheel 30 cannot rotate, thereby realizing the locking operation.

In a second embodiment, see fig. 8 to 10:

In one embodiment, the counter lock 40 is rotatably disposed, and the counter lock 40 is provided with a first recess 42 and a second recess 43, so that the counter lock is achieved when the first recess 42 and the second recess 43 are opposite to the first notch 12 and the second notch 22.

Specifically, the counter locking mode of the counter locking piece 40 is changed from movement to rotation, the positions of the counter locking piece 40 corresponding to the notches of the first shell 10 and the second shell 20 are provided with recesses, the recess direction of the counter locking piece 40 faces to the notch of the shell in the non-counter locking state, the rotating wheel 30 can be rotated at the moment, after the counter locking piece 40 rotates 180 degrees, the recess of the counter locking piece 40 faces to the notch of the shell, and at the moment, the counter locking piece 40 clamps the notch of the shell to realize counter locking.

In one embodiment, the counter-locking element 40 is in the shape of a round stick, and the first recess 42 and the second recess 43 are located in the middle section of the counter-locking element 40.

Specifically, the first recess 42 and the second recess 43 are provided in the middle section of the counter lock 40, so that the counter lock 40 can be manually rotated.

In one embodiment, the notch 31 has a circular arc shape to correspond to the shape of the counter lock 40, so that the counter lock 40 can perform a rotational movement in the notch 31.

Specifically, the rotor 30 in the second embodiment is different from the rotor 30 in the first embodiment only in the shape of the notch groove 31.

Embodiment three, see fig. 11 to 16:

In an embodiment, the back locking structure is applied to the transmission assembly, and specifically further includes a transmission member 70, where the transmission member 70 is slidably connected to the first housing 10 and the second housing 20, and the transmission member 70 is in transmission connection with the rotating wheel 30.

Specifically, when the rotating wheel 30 is rotated, the rotating wheel 30 drives the driving member 70 to move along the first housing 10 and the second housing 20.

In one embodiment, the driving part 35 is disposed at one end of the rotating wheel 30 near the driving part 70, the driving part 70 is provided with a sliding groove 71 corresponding to the driving part 35, and the driving part 35 is slidably connected with the sliding groove 71.

Specifically, the upper and lower ends of the driving part 35 are respectively provided with a driving protrusion 351, the driving protrusions 351 are slidably connected to the sliding grooves 71, and when the rotating wheel 30 is rotated, the driving protrusions 351 slide in the sliding grooves 71 and drive the transmission member 70 to move.

In an embodiment, the first casing 10 and the second casing 20 are further provided with an extending protrusion 26 near one end of the transmission member 70, and the transmission member 70 is slidably connected to the inner sides of the extending protrusions 26 at the upper and lower ends, so that the structure is compact.

In an embodiment, the counter lock structure further includes a cover plate 80, and the cover plate 80 is connected to the first housing 10 and the second housing 20.

Specifically, a cover plate 80 is coupled to the outer sides of the upper and lower extension bosses 26 for defining the transmission member 70 to slide in a designated direction.

Specifically, the counter-locking element 40 is in a strip shape or a column shape, penetrates through the notch groove 31 and penetrates through the first through hole 11 and the second through hole 21, and in the state that the door lock is not locked, the counter-locking element 40 is only in the notch groove 31 of the rotating wheel 30 and can rotate along with the rotating wheel 30; when the door lock needs to be locked, the locking piece 40 is moved towards the outer side of the rotating wheel 30, so that the locking piece 40 is positioned in the first notch 12, the notch groove 31 and the second notch 22 at the same time, and the rotating wheel 30 is limited to rotate at the moment, so that the locking effect is realized.

The utility model also discloses a door lock comprising the back locking structure.

Specifically, the first notch 12, the notch groove 31 and the second notch 22 are simultaneously clamped by the counter-locking piece 40, so that counter-locking is realized, the conventional door lock structure is simplified, the product cost is reduced, and the assembly efficiency of the product is improved.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. The anti-lock structure is characterized by comprising a first shell, a second shell, a rotating wheel and an anti-lock piece; the first shell is provided with a first through hole, the edge of the first through hole is provided with a first notch, the second shell is provided with a second through hole, the edge of the second through hole is provided with a second notch, the rotating wheel is rotationally connected between the first through hole and the second through hole, and the edge of the rotating wheel is provided with a notch groove; when the back locking piece simultaneously clamps the first notch, the notch groove and the second notch, back locking is realized.

2. The back lock structure according to claim 1, wherein the back lock is movably disposed, and the back lock is provided with a protrusion, and the protrusion is configured to lock the first notch, the notch groove, and the second notch.

3. The counter lock structure according to claim 1, wherein the counter lock member is rotatably provided with a first recess and a second recess, and counter lock is achieved when the first recess and the second recess face away from the first notch and the second notch.

4. A counter lock according to claim 3, wherein the counter lock is in the form of a round stick, and the first recess and the second recess are located in a middle section of the counter lock.

5. The counter lock of claim 4, wherein the notch slot is arcuate in shape.

6. The counter lock according to claim 2, wherein the counter lock is in a flat bar shape, and the protrusion is located in a middle section of the counter lock.

7. The counter lock structure according to claim 6, wherein the longitudinal cross section of the tab is M-shaped.

8. The backlock structure of claim 1, wherein the first notch and the second notch are identical in structure, the first notch being U-shaped.

9. The lockout structure of claim 1, further comprising a latch bolt assembly and a spring; the spring bolt assembly is movably connected with the second shell, one end of the rotating wheel is in transmission connection with the spring bolt assembly, and the other end of the rotating wheel is in abutting connection with the spring.

10. A door lock comprising a counter lock arrangement according to any one of claims 1 to 9.