CN219100957U - Narrow frame door lock - Google Patents

Abstract

The utility model discloses a narrow frame door lock, which comprises a panel, a handle, a lock cylinder structure and a back locking assembly. The lock core structure penetrates through the panel and is connected with the handle; the anti-lock assembly comprises a knob, a sliding plate and a poking piece, wherein the knob is arranged on the outer side of the panel and is connected with the poking piece arranged in the panel, the poking piece is of a symmetrical structure, positioning protrusions are arranged at two ends of the poking piece, the lock cylinder structure is provided with an anti-lock opening, the sliding plate is provided with an anti-lock portion opposite to the anti-lock opening, the sliding plate is provided with two arc grooves symmetrically distributed along the width direction of the sliding plate, one end of each arc groove, far away from the anti-lock portion, is an anti-lock end, one end of each arc groove, close to the anti-lock portion, is an unlocking end, the connecting line length of each two positioning protrusions is larger than the diameter of each arc groove, and the angle of each arc groove is 90 degrees. The two positioning bulges are respectively arranged in the two arc grooves, the knob drives the positioning bulge of the shifting block to rotate to the opposite locking end, and under the action of the guide structure, the opposite locking part of the sliding plate slides into the opposite locking opening, so that the lock cylinder structure cannot rotate.

Description

Narrow frame door lock

Technical Field

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

Background

The existing door lock generally comprises a panel, a handle arranged outside the panel, a back lock assembly and a lock cylinder, wherein the handle is used for driving the lock cylinder to rotate; however, the panel of the conventional door lock is large, and the installation on the door affects the beauty of the door, so people pursue the door lock with a narrower panel. The width of the panel is determined by the following factors: the size of the lock body and the size of the back locking assembly.

For example, the utility model patent with publication number of CN203230244U discloses a door lock back locking structure, which comprises a panel, a knob, a push rod, a transmission piece connected with the knob and a transmission disc, wherein a clamping groove for the push rod to be inserted is arranged on the transmission disc, and when the push rod is inserted into the clamping groove, the door lock is in a back locking state. The transmission disc is provided with a semicircular slot, the ejector rod is provided with a linkage piece positioned in the semicircular slot, the transmission piece is rotated, and the ejector rod and the linkage piece are driven to slide. If the panel is narrowed for attractive appearance, the angle of the slotted hole matched with the linkage piece is correspondingly reduced, so that the reverse locking rotation angle of the knob is reduced, and the reverse locking is unstable. Based on the problems, the utility model further improves the door lock.

Disclosure of Invention

The main purpose of the utility model is to provide a narrow frame door lock, the reverse locking rotation angle of a knob is 90 degrees, the reverse locking state is stable, the panel width is smaller, and the door lock is attractive.

The utility model provides a narrow frame door lock which comprises a panel, a handle, a lock cylinder structure and a back locking assembly. The lock core structure penetrates through the panel and is connected with the handle; the anti-lock assembly comprises a knob, a sliding plate and a poking piece, wherein the knob is arranged on the outer side of the panel and is connected with the poking piece arranged in the panel, the poking piece is of a symmetrical structure, positioning protrusions are arranged at two ends of the poking piece, an anti-lock opening is arranged on the lock cylinder structure, the sliding plate is provided with anti-lock parts opposite to the anti-lock opening, the sliding plate is provided with two arc grooves symmetrically distributed in the width direction of the sliding plate, one end of each arc groove, which is far away from the corresponding anti-lock part, is an anti-lock end, one end of each arc groove, which is close to the corresponding anti-lock part, is an unlocking end, the length of a connecting line of each positioning protrusion is larger than the diameter of each arc groove, the angle of each arc groove is 90 degrees, and a guide structure is arranged between the sliding plate. The two positioning bulges are respectively arranged in the two arc-shaped grooves.

Preferably, the plectrum is olive-shaped, and its symmetry axis is inclined with respect to the width direction of the panel.

Preferably, the knob is provided with a reverse lock core, the center of the pulling piece is provided with a clamping hole which is clamped with the reverse lock core, the sliding plate is provided with a through hole which is opposite to the reverse lock core, and the reverse lock core sequentially penetrates through the panel and the through hole and is clamped with the clamping hole.

Preferably, the guiding structure comprises a sliding groove and a limiting column which are arranged on the inner side of the panel, and a limiting groove arranged on the sliding plate, wherein the width of the sliding groove is matched with that of the sliding plate, the sliding groove extends to the back locking opening, the extending direction of the limiting groove is consistent with the sliding direction of the sliding plate, and the limiting column is positioned in the limiting groove.

Preferably, the chute width is consistent with the panel inside width.

Preferably, the back locking assembly further comprises a positioning torsion spring, one end of the positioning torsion spring is connected with the limiting column, and the other end of the positioning torsion spring is connected with the adjacent end part of the shifting piece.

Preferably, the lock cylinder structure comprises a handle head, a reset torsion spring and a groove arranged on the inner side of the panel, the handle head comprises a connecting part and a boss, a handle head hole matched with the connecting part is formed in the groove, one end of the connecting part extends out of the panel from the handle head hole and is connected with the handle, and the other end of the connecting part extends outwards along the radial direction to form the boss; the reset torsion spring is sleeved on the connecting part, the reset torsion spring is pressed in the groove by the boss, the side wall of the groove is provided with the counter locking opening, two ends of the reset torsion spring are propped against two sides of the counter locking opening, and the boss is provided with a protruding part for driving the reset torsion spring to realize synchronous rotation.

Preferably, the handle head is provided with a countersunk hole, the handle is provided with a connecting screw hole, one end of the threaded fixing piece penetrates through the countersunk hole and is fixed in the connecting screw hole, and the countersunk head of the threaded fixing piece is arranged in the countersunk hole.

Preferably, the handle is provided with a clamping groove matched with the handle head, and the clamping groove is internally provided with the connecting screw hole.

Preferably, the boss is provided with two protruding parts, which are respectively positioned at two outer sides of the reset torsion spring.

The door lock back locking principle is as follows: the knob is rotated by 90 degrees, and the positioning protrusion of the shifting sheet is driven to rotate to the anti-locking end, in the process, the sliding plate moves towards the anti-locking opening along the sliding groove, and the anti-locking part is clamped into the anti-locking opening, so that the lock cylinder structure cannot rotate; and at the moment, the positioning torsion spring is in a compressed state, and applies pressure towards the inner side direction of the arc-shaped groove to the sliding plate, so that the positioning bulge is stabilized at the anti-locking end.

The beneficial effects of the utility model are as follows:

1. the utility model adopts the double positioning bulges to perform positioning and back locking, and compared with the positioning bulges only provided with one positioning bulge, the positioning of the double positioning bulges is more stable, and the positioning bulges are not easy to separate from the arc-shaped groove. The width of the panel is reduced by reducing the angle of the arc groove, the rotation range of the back locking knob is 45-70 degrees, and the knob rotates 90 degrees during back locking, so that the positioning bulge is more stable at the back locking end.

2. The shifting sheet is in a regular pattern, and the symmetry axis of the shifting sheet is inclined relative to the width direction of the panel, so that the width of the panel is smaller than that of the shifting sheet, the width of the inner side of the panel is consistent with that of the chute, and the width of the panel of the door lock is limited to be minimum as possible.

Drawings

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

FIG. 2 is a schematic diagram of an unlocked state according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a narrow frame door lock according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a handle head according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of the cooperation of the pulling piece and the sliding plate according to the embodiment of the utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

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 identify like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships as described based on 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed therewith; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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 explicitly specified and limited otherwise, a first feature "up" or "down" on a second feature may be a direct contact between the first feature and the second feature, or an indirect contact between the first feature and the second feature through an intermediary, and further, a first feature "above", "above" and "over" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-5, one embodiment of a narrow frame door lock of the present utility model is shown:

a narrow frame door lock comprises a panel 1, a handle 2, a lock cylinder structure and a back locking component. The lock core structure penetrates through the panel 1 and is connected with the handle 2; the anti-lock assembly comprises a knob 31, a sliding plate 32 and a poking piece 33, wherein the knob 31 is arranged on the outer side of the panel 1 and is connected with the poking piece 33 arranged on the inner side of the panel 1, the poking piece 33 is of a symmetrical structure, two ends of the poking piece are provided with positioning protrusions 331, the lock cylinder structure is provided with an anti-lock opening 11, the sliding plate 32 is provided with an anti-lock portion 321 opposite to the anti-lock opening 11, the sliding plate 32 is provided with two arc-shaped grooves 322 symmetrically distributed along the width direction of the sliding plate 32, one end of each arc-shaped groove 322, far away from the corresponding anti-lock portion 321, is an anti-lock end 3221, one end of each arc-shaped groove 322, close to the corresponding anti-lock portion 321, is an unlocking end 3222, the connecting line length of each two positioning protrusions 331 is larger than the diameter of each arc-shaped groove 322, and each positioning protrusion 331 is arranged in each arc-shaped groove 322. The angle of the arcuate slot 322 is 90.

As shown in fig. 2, in order to limit the sliding direction of the sliding plate 32, a guiding structure is arranged between the sliding plate 32 and the panel 1, and comprises a sliding groove 12 and a limiting post 13 which are arranged on the inner side of the panel 1, and a limiting groove 324 which is arranged on the sliding plate 32, wherein the width of the sliding groove 12 is matched with that of the sliding plate 32, the sliding groove 12 extends to the counter-locking opening 11, the extending direction of the limiting groove 324 is consistent with the sliding direction of the sliding plate 32, and the limiting post 13 is positioned in the limiting groove 324.

Door lock back locking principle: the knob 31 is rotated by 90 degrees, and the positioning protrusion 331 of the shifting piece 33 is driven to rotate to the back locking end 3221, in the process, the sliding plate 32 moves towards the back locking port 11 along the sliding groove 32, and the back locking part 321 is clamped into the back locking port 11, so that the lock cylinder structure cannot rotate, and back locking is realized; the knob 31 is rotated by 90 degrees in the opposite direction, and the positioning protrusion 331 of the pulling piece 33 is driven to rotate to the unlocking end 3222, in the process, the sliding plate 32 is far away from the anti-locking opening 11 along the sliding groove 12, the anti-locking portion 321 is separated from the anti-locking opening 11, and the anti-locking portion 321 does not obstruct the rotation of the core structure any more, so that unlocking is realized.

In this embodiment, the dual positioning protrusions 331 are adopted for positioning and locking, compared with the dual positioning protrusions 331 only having one positioning protrusion 331, the dual positioning protrusions 331 are more stable in positioning, and the positioning protrusions 331 are not easy to separate from the arc grooves 322. In addition, the width of the panel is reduced by reducing the angle of the arc-shaped groove, the rotation range of the back locking knob is 45 degrees to 70 degrees, and the knob 31 rotates 90 degrees during back locking in the embodiment, so that the positioning protrusion 331 is more stable at the back locking end 3221.

As shown in fig. 1 and 2, the back lock assembly further includes a positioning torsion spring 34, one end of the positioning torsion spring 34 is connected to the limit post 13, and the other end is connected to an end of the adjacent pulling piece 33, when the positioning protrusion 331 is located at either end of the arc-shaped groove 322, the positioning torsion spring 34 is in a compressed state, and applies pressure to the sliding plate 32 in a direction toward the inner side of the arc-shaped groove 322, so that the positioning protrusion 331 is stabilized at the back lock end 3221/the unlock end 3222.

The paddle 33 is olive-shaped with its symmetry axis inclined with respect to the width direction of the panel 1 such that the width of the panel 1 is smaller than the width of the paddle 33, and the width of the inside of the panel 1 coincides with the width of the chute 12 such that the width of the panel 1 is as minimum as possible. The smaller the width of the panel 1 of the door lock, the less the effect on the appearance of the door, making it more attractive to install the door of the utility model.

The knob 31 is provided with a reverse lock cylinder 311, the center of the pulling piece 33 is provided with a clamping hole 332 matched with the reverse lock cylinder 311, the sliding plate 32 is provided with a through hole 323 opposite to the reverse lock cylinder 311, the reverse lock cylinder 311 sequentially penetrates through the panel 1 and the through hole 323 and is clamped with the clamping hole 332, and in the embodiment, the through hole 323 is communicated with the two arc-shaped grooves 322.

As shown in fig. 3 and 4, the lock cylinder structure includes a handle head 41, a reset torsion spring 42, and a groove 14 provided inside the panel 1, the handle head 41 includes a connection portion 411 and a boss 412, and one end of the connection portion 411 extends radially outward to form the boss 412. The reset torsion spring 42 is sleeved on the connecting portion 411, the reset torsion spring 42 is pressed in the groove 14 by the boss 412, the anti-locking opening 11 is arranged on the side wall of the groove 14, two ends of the reset torsion spring 42 are propped against two sides of the anti-locking opening 11, the boss 412 is provided with two protruding portions 413 for driving the reset torsion spring 42 to synchronously rotate, the protruding portions 413 are respectively located on two outer sides of the reset torsion spring 42, any protruding portion 413 can press the reset torsion spring 42, so that restoring force is generated, and the handle head 41 and the handle 2 are driven to reset.

The handle head 41 is provided with a countersunk hole 414, the handle 2 is provided with a clamping groove 21 matched with the connecting part 411, a connecting screw hole 211 is arranged in the clamping groove 21, a handle head hole 141 matched with the connecting part 411 is arranged in the groove 14, one end of the connecting part 411 extends out of the panel 1 from the handle head hole 141 and is clamped in the clamping groove 21, a sealing ring 415 is arranged between the handle head hole 141 and the connecting part 411, further, one end of a threaded fixing piece penetrates through the countersunk hole 414 and is fixed in the connecting screw hole 211, and the countersunk head of the threaded fixing piece is arranged in the countersunk hole 414, so that the handle head 41 is fixedly connected with the handle 2, and the connection operation is simple.

In the description of the present specification, reference to descriptions as pertaining to "one embodiment," "some embodiments," "examples," "particular examples," or "some examples" and the like 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 are not necessarily 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, and further, different embodiments or examples, and features of different embodiments or examples, described in this specification may be combined and combined by those skilled in the art without contradiction to each other.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims (10)

1. The narrow frame door lock comprises a panel, a handle, a lock cylinder structure and a back lock assembly, and is characterized in that the lock cylinder structure penetrates through the panel to be connected with the handle; the anti-lock assembly comprises a knob, a sliding plate and a poking piece, wherein the knob is arranged on the outer side of the panel and is connected with the poking piece arranged in the panel, the poking piece is of a symmetrical structure, positioning protrusions are arranged at two ends of the poking piece, an anti-lock opening is arranged on the lock cylinder structure, an anti-lock part opposite to the anti-lock opening is arranged on the sliding plate, two arc-shaped grooves symmetrically distributed in the width direction of the sliding plate are arranged on the sliding plate, one end of each arc-shaped groove, far away from the corresponding anti-lock part, is an anti-lock end, one end of each arc-shaped groove, close to the corresponding anti-lock part, is an unlocking end, the connecting line length of each positioning protrusion is larger than the diameter of each arc-shaped groove, and the angle of each arc-shaped groove is 90 degrees; a guide structure is arranged between the sliding plate and the panel; the two positioning bulges are respectively arranged in the two arc grooves, the knob drives the positioning bulge of the plectrum to rotate to the locking end, and the locking part of the sliding plate slides into the locking opening under the action of the guide structure.

2. The narrow frame door lock according to claim 1, wherein the paddle is olive-shaped with an axis of symmetry inclined with respect to a width direction of the panel.

3. The narrow frame door lock of claim 1, wherein the knob is provided with a counter lock core penetrating into the panel, and a clamping hole clamped with the counter lock core is arranged in the center of the poking piece.

4. The narrow frame door lock according to claim 1, wherein the guiding structure comprises a sliding groove and a limiting column arranged on the inner side of the panel, a limiting groove arranged on the sliding plate, the width of the sliding groove is matched with that of the sliding plate, the sliding groove extends to the counter locking opening, the extending direction of the limiting groove is consistent with the sliding direction of the sliding plate, and the limiting column is positioned in the limiting groove.

5. The door lock according to claim 4, wherein the chute width is consistent with the panel inside width.

6. The door lock of claim 4, wherein the counter lock assembly further comprises a positioning torsion spring having one end connected to the limit post and the other end connected to the adjacent paddle end.

7. The narrow frame door lock according to claim 1, wherein the lock core structure comprises a handle head, a reset torsion spring and a groove arranged on the inner side of the panel, the handle head comprises a connecting part and a boss, a handle head hole matched with the connecting part is arranged in the groove, one end of the connecting part extends out of the panel from the handle head hole and is connected with the handle, and the other end of the connecting part extends outwards along the radial direction to form the boss; the reset torsion spring is sleeved on the connecting part, the reset torsion spring is pressed in the groove by the boss, the side wall of the groove is provided with the counter locking opening, two ends of the reset torsion spring are propped against two sides of the counter locking opening, and the boss is provided with a protruding part for driving the reset torsion spring to realize synchronous rotation.

8. The door lock according to claim 7, wherein the handle head is provided with a countersunk hole, the handle is provided with a connecting screw hole, one end of the threaded fixing member penetrates through the countersunk hole and is fixed in the connecting screw hole, and the countersunk head of the threaded fixing member is arranged in the countersunk hole.

9. The narrow frame door lock of claim 8, wherein the handle is provided with a clamping groove adapted to the handle head, and the clamping groove is internally provided with the connecting screw hole.

10. The door lock according to claim 7, wherein the boss is provided with two of the bosses, respectively located on both outer sides of the return torsion spring.

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