CN217080001U - False lock pin lockset - Google Patents

Abstract

A false mortise lock comprises a front cover component, a rear cover component and a lock body, wherein the rear cover component comprises a knob; the front cover assembly comprises a front support, a lock cylinder and a lock ruler, the front end of the lock ruler is connected to the lock cylinder, and the rear end of the lock ruler penetrates through the lock body and is connected to the knob; the front cover assembly is characterized in that a support through hole and a clamping groove are formed in the front support, a clamping arm is arranged on the lock cylinder, the support through hole is larger than the lock cylinder, the lock cylinder inserted into the support through hole can move back and forth along the radial direction of the support through hole, so that the clamping arm is clamped into or moved out of the clamping groove, the front cover assembly further comprises a front decorative cover, the front decorative cover is provided with a front cover through hole matched with the lock cylinder, the outer diameter of the front decorative cover is larger than the support through hole, and when the front decorative cover covers the front support, the front decorative cover can shield a gap between the lock cylinder and the support through hole and clamp the clamping arm in the clamping groove.

Description

False lock pin lockset

Technical Field

The invention relates to the technical field of locks, in particular to a false mortise lock.

Background

The lock in the market is various, wherein the lock with the false insertion core does not use a lock core with a complex structure, but the appearance of the lock is equivalent to that of a common lock, and the lock also has a basic door locking function and is suitable for door leaf locking in public places. For example, chinese utility model patent with publication number CN208329893U discloses a novel false lock pin tool to lock, it includes that the lock core keeps off and covers subassembly and knob lid subassembly, the double-screw bolt in the lock core keeps off and covers the subassembly and insert along the perforation of lock body, and the lock core thumb wheel of lock body is inserted simultaneously to the lock chi, and the lock chi passes stealthy supporting cover, and fastening screw passes and screws up along two apertures and with the double-screw bolt cooperation, the knob embolias the lock chi in the knob lid subassembly, compresses tightly the invisible supporting of knob lid subassembly installation on the door plant and covers, screws up the jackscrew at last and lets the knob lid subassembly connect firmly on the stealthy supporting covers. The lock core of the lock is generally fixedly connected to the lock core blocking cover component through the screw and the pressing plate, so that the integral thickness of the lock core blocking cover component is increased, the integral attractiveness of a door leaf is influenced, and the lock core is complex to assemble and disassemble.

Disclosure of Invention

In order to solve the technical problem, the invention provides a false mortise lock which comprises a front cover assembly, a rear cover assembly and a lock body, wherein the rear cover assembly comprises a knob; the front cover assembly comprises a front support, a lock cylinder and a lock ruler, the front end of the lock ruler is connected to the lock cylinder, and the rear end of the lock ruler penetrates through the lock body and is connected to the knob; the front cover assembly is characterized in that a support through hole and a clamping groove are formed in the front support, a clamping arm is arranged on the lock cylinder, the support through hole is larger than the lock cylinder and is inserted into the support through hole, the lock cylinder can be arranged in the support through hole to enable the radial back and forth movement of the support through hole to enable the clamping arm to be clamped into or shifted out of the clamping groove, the front cover assembly further comprises a front decoration cover, the front decoration cover is provided with a front cover through hole matched with the lock cylinder, the outer diameter of the front decoration cover is larger than the support through hole, and when the front decoration cover covers the front support, the front decoration cover can shield a gap between the lock cylinder and the support through hole and enable the clamping arm to be clamped in the clamping groove.

The lock core is a false lock core without a complex anti-theft structure and comprises a lock core shell and a core body which is rotatably arranged on the lock core shell, wherein one side of the core body is provided with a key hole, the other side of the core body is connected with the lock ruler, and the core body and the lock ruler can be driven to rotate by inserting a key.

The front support is a member attached to the front side surface of the door leaf and used for connecting and supporting the lock cylinder and the front decorative cover, and in order to reduce cost, the front support can be made of plastic.

The bracket through hole is a hole which is arranged on the front bracket and is larger than the lock cylinder in size, the lock cylinder can be easily inserted into the bracket through hole and can also move along the radial direction, and the lock cylinder is a moving space reserved for the clamping arm to be clamped into or withdrawn from the clamping groove; the moving direction of the clamping arm clamped into the clamping groove is defined as forward movement, and conversely, backward movement.

The clamping groove is of a groove-shaped structure arranged along the through hole of the support, the clamping groove comprises a groove side wall and a notch, the clamping arm can be clamped into the clamping groove from the notch when moving forwards, and the groove side wall can limit the axial and radial movement of the lock cylinder.

The front decorative cover is a component which is installed and covered on the front support, the size and shape of the front cover through hole are matched with the structure of the lock cylinder, namely, the lock cylinder can be inserted into the front cover through hole but can not move along the radial direction basically, and the front decorative cover can cover the front support when the clamping arm of the lock cylinder clamp is clamped in the clamping groove, so that the radial movement of the lock cylinder can be limited through the front cover through hole. In one embodiment, the edge of the front decorative cover is further provided with a flange, the flange is just covered on the side wall of the front support, the flange is provided with a groove, the side wall of the front support is provided with a buckle matched with the groove, and the front decorative cover can be stably covered on the front support through the matching of the buckle and the groove.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, the lock cylinder and the front support are connected in a mode of combining the clamping arm and the clamping groove, so that the lock cylinder is simple in structure and convenient to install, and the thickness of the front support can be effectively controlled; secondly, the front decorative cover is covered, so that the position of the lock cylinder can be limited through the through hole of the front cover to ensure that the lock cylinder is not easy to loosen; and thirdly, through the arrangement of the front decorative cover, the front decorative cover not only can well shield the gap between the lock cylinder and the front support, but also can shield the connecting structure of the front support, such as a screw column, so that the whole attractiveness of the lockset is favorably improved.

In order to better mount and connect the lock cylinder to the front bracket, a positioning structure may be provided on the front bracket, the lock cylinder, or the front decorative cover, and three specific embodiments are described below.

The first type is provided with the locking arm on the fore-stock be provided with the location wall on the lock core, wherein the locking arm is the elasticity digging arm, the location wall then sets up on the card arm of lock core, when installing the lock core, the locking arm is in outside swing under the pressure effect of card arm is dodged thereby lets the lock core slides forward, works as the card arm card is gone into when the draw-in groove, thereby the locking arm combines with the location wall and restricts the lock core shifts out the draw-in groove. In order to provide a certain elasticity of the stop arm, the front bracket may be integrally made of plastic.

The lock core is provided with a locking arm capable of swinging, the front support is provided with a positioning wall, in one embodiment, the locking arm is arranged on the clamping arm, namely the clamping arm can swing and can limit the movement of the lock core in the axial direction when the clamping arm is clamped into the clamping groove, the positioning wall is one of groove side walls of the clamping groove, when the lock core is installed, the locking arm swings and avoids under the extrusion effect of the positioning wall so as to enable the lock core to slide forwards, and when the clamping arm is clamped into the clamping groove, the locking arm is combined with the positioning wall so as to limit the lock core to move out of the clamping groove.

And thirdly, a limiting rib is arranged on the front decorative cover, and when the clamping arm is clamped into the clamping groove, the limiting rib can be inserted into the through hole of the bracket and abuts against the lock cylinder so as to limit the lock cylinder to move out of the clamping groove.

In order to better install the front cover assembly and the rear cover assembly, a further technical scheme is that the rear cover assembly comprises a rear support, and the knob is rotatably arranged on the rear support. Still including connecting screw, be provided with positioning hole on the lock body, connecting screw passes in proper order the screw hole on the after-poppet, the positioning hole of lock body and connect thereby on the fore-stock thereby handle protecgulum subassembly, lock body link together with the back cover subassembly.

The invention can be applied to false mortise locks due to the characteristics and advantages.

Drawings

FIG. 1 is a schematic axial view of the false mortise lock;

FIG. 2 is an exploded view of the false mortise lock;

FIG. 3 is a schematic axial view of the front cover assembly;

FIG. 4 is a schematic axial view of the front bracket;

FIG. 5 is a schematic axial view of the lock cylinder;

FIG. 6 is a front view of the front cover assembly showing a second positioning structure;

FIG. 7 is a schematic cross-sectional view of the front cover assembly in a right-side view, showing a third positioning structure.

Detailed Description

The structure of the false mortise lock applying the technical scheme of the invention is further explained with reference to the attached drawings. Various implementation details disclosed below may be selectively applied or combined in one embodiment even if not directly related or synergistic in functional terms, except where expressly specified to belong to equivalent or alternative embodiments.

As shown in fig. 1 and 2, the false mortise lock installed on a door leaf 1 includes a lock body 2 installed in a sidewall body of the door leaf 1, and a front cover assembly 3 and a rear cover assembly 4 disposed on inner and outer sides of the door leaf 1, where the lock body 2 includes a main body 21, a locking tongue 22, and a connecting side plate 23, the main body 21 is disposed in a groove of a sidewall body of the door leaf 1, the connecting side plate 23 is connected to a sidewall body of the door leaf 1 through a screw, and the locking tongue 22 can extend out of or retract into the main body 21. The rear cover assembly 4 includes a rear bracket 41, a rear cover 42 and a knob 43, wherein the knob 43 is rotatably disposed on the rear bracket 41. The front cover assembly 3 comprises a front support 5, a lock cylinder 6 and a lock ruler 7, wherein the lock cylinder 6 is connected to the front support 5, the front end of the lock ruler 7 is connected to the lock cylinder 6, and the rear end of the lock ruler 7 penetrates through the lock body 2 and is connected to the knob 43. Thus, the lock ruler 7 can be driven to rotate by rotating the lock core 6 or the knob 43, and the lock ruler 7 further drives the lock tongue 22 to move back and forth, so that unlocking or locking is realized.

In order to fixedly connect the front cover assembly 3 and the rear cover assembly 4 to the door leaf 1, the door leaf further comprises a connecting screw 11, two positioning through holes are formed in the lock body 2, and the connecting screw 11 sequentially penetrates through a screw hole in the rear support 41 and a positioning through hole in the lock body 2 and is connected to the front support 5, so that the front cover assembly 3, the lock body 2 and the rear cover assembly 4 are connected together and firmly connected to the door leaf 1.

In the prior art, the lock cylinder 6 is generally fixedly connected to the front support 5 through screws and pressing sheets, so that not only are screw posts added on the front support 5, but also installation is complicated, and the requirement on structural strength of a false mortise lock is not high, so that the front cover assembly 3 and the rear cover assembly 4 can be made of plastics, so that the cost is reduced, and installation and maintenance are facilitated. Further, the front support 5 and the lock cylinder 6 are arranged in a clamping manner, so that the installation structure of the lock cylinder 6 is simplified, the number of screw columns on the front support 5 can be reduced, the overall thickness of the front cover assembly 3 is reduced, and the overall attractiveness of the door leaf 1 is improved. In the following, referring to fig. 2 to 5, the structure of the front cover assembly 3 is further described, a bottom plate of the front bracket 5 is provided with a bracket through hole 50 and a locking groove 51, wherein the bracket through hole 50 is arranged in the middle of the bottom plate of the front bracket 5, and the bracket through hole 50 is larger than the lock cylinder 6; and a latch arm 61 is provided on the key cylinder 6, the latch arm 61 extending radially outward. After the lock cylinder 6 is inserted into the bracket through hole 50, the lock cylinder 6 can move back and forth in the bracket through hole 50 along the radial direction of the bracket through hole 50, so that the latch arm 61 can be latched into or removed from the latch slot 51. As shown in fig. 3 and 4, the locking grooves 51 are disposed along the edge of the through hole 50 of the bracket, the locking grooves 51 are intermittently disposed at the front and left and right sides of the moving direction of the lock cylinder 6, and the locking arms 61 of the lock cylinder 6 can be locked into the locking grooves 51 when moving forward, so that the front bracket 5 can limit the axial movement of the lock cylinder. In addition, the width dimension of the bracket through hole 50 is equivalent to the width dimension of the lock cylinder 6, and the lock cylinder can be limited to move in the left and right directions in the radial direction through the bracket through hole 50.

Further, the front cover assembly 3 further includes a front decorative cover 8, the front decorative cover 8 is provided with a front cover through hole 80 matched with the lock cylinder 6, and the outer diameter of the front decorative cover 8 is larger than the bracket through hole 50, when the front decorative cover 8 is covered and connected to the front bracket 5, the front decorative cover 8 can shield the gap between the lock cylinder 6 and the bracket through hole 50 and allow the clamping arm 61 to be clamped in the clamping groove 51.

In order to stably cover and connect the front decoration cover 8 to the front frame 5, the front decoration cover 8 includes a cover bottom plate 81 and a flange 82 disposed at an edge of the cover bottom plate 81, when the front decoration cover 8 is covered on the front frame 5, the cover bottom plate 81 is attached to the front frame 5, the flange 82 is just covered on a side wall of the front frame 5, as shown in fig. 2 and 3, a plurality of grooves 83 are disposed on an inner side wall of the flange 82 of the front decoration cover 8, a buckle 52 is disposed on a side wall of the front frame 5, and when the front decoration cover 8 is covered on the front frame 5, the buckle 52 is combined with the grooves 83 to firmly cover and connect the front decoration cover 8 to the front frame 5.

Further, in order to better connect the key cylinder 6 to the front bracket 5, a positioning structure may be provided on the front bracket 5, the key cylinder 6, or the front decorative cover 8, and three specific embodiments will be described below.

In a first embodiment, as shown in fig. 2 to 4, a bracket stopping arm 53 is disposed on a bottom plate of the front bracket 5, the bracket stopping arm 53 has certain elasticity, a first end of the bracket stopping arm 53 is fixedly connected to the front bracket 5, and a second end thereof is suspended and can swing back and forth. In a natural state, the second end of the bracket stopping arm 53 extends to a moving path of the key cylinder 6, and a key cylinder positioning wall 62 cooperating with the bracket stopping arm 53 is provided on the key cylinder 6, in this embodiment, the key cylinder positioning wall 62 is a rear side wall of the latch arm 61. When the lock cylinder 6 is installed, the bracket stopping arm 53 swings outwards under the pressure of the lock cylinder 6 to move the lock cylinder 6 forwards, and when the latch arm 61 of the lock cylinder 6 latches to the latch slot 51, the latch arm 53 swings back under its own elastic force and latches to the rear of the rear sidewall of the latch arm 61 to limit the lock cylinder 6 from moving backwards. When the lock cylinder 6 is disassembled, the lock cylinder 6 can slide backwards by manually pressing the clamping arm 53, so that the clamping arm 61 is separated from the clamping groove 51.

In a second embodiment, as shown in fig. 6, a key cylinder stopping arm 63 is provided on the key cylinder 6, and the key cylinder stopping arm 63 is arranged on the latch arm 61 and can swing left and right, i.e. the latch arm 61 not only limits the axial movement of the key cylinder 6, but also limits the radial movement of the key cylinder 6; one of the groove side walls of the catching groove 53 serves as a holder positioning wall 54. When the lock cylinder 6 is installed, the lock cylinder stopping arm 63 is pressed by the bracket positioning wall 54 to swing inwards so as to move the lock cylinder 6 forwards, and when the clamping arm 61 of the lock cylinder 6 is clamped in the clamping groove 51, the lock cylinder stopping arm 63 swings outwards under the self elasticity to reset and is clamped on the bracket positioning wall 54 so as to limit that the lock cylinder 6 cannot move backwards. When the lock cylinder 6 is dismounted, the lock cylinder 6 can be slid backwards by manually shifting the lock cylinder stop arm 63 to swing inwards, so that the clamp arm 61 is separated from the clamp groove 51.

When the first and second embodiments are used, the key cylinder 6 can be stably locked to the front bracket 5 before the front decorative cover 8 is not mounted by providing the bracket stop arm 53 or the key cylinder stop arm 63, so that the key cylinder 6 can be pre-mounted on the front bracket 5 as a module before factory shipment, which effectively reduces the mounting process of a worker when mounting the false mortise lock to a door; on the other hand, when the lock cylinder 6 and the front support 5 are installed as a component, the front support 5 is not easy to loosen, and the false mortise lock is beneficial to improving the installation efficiency.

In a third embodiment, as shown in fig. 7, a limiting rib 84 is provided on the cover bottom plate 81 of the front decorative cover 8, and when the latch arm 61 is latched into the latch slot 51, the limiting rib 84 can be just inserted into the bracket through hole 50 to limit the latch arm 61 of the lock cylinder 6 from moving out of the latch slot 51. Further, the front end of the stopper rib 84 is provided with a chamfer, which allows the stopper rib 84 to be more easily inserted into the bracket through hole 50 to guide the front decorative cover 8 to be closed onto the front bracket 5.

Claims (6)

1. A false mortise lock comprises a front cover assembly, a rear cover assembly and a lock body, wherein the rear cover assembly comprises a knob; the front cover assembly comprises a front support, a lock cylinder and a lock ruler, the front end of the lock ruler is connected to the lock cylinder, and the rear end of the lock ruler penetrates through the lock body and is connected to the knob; the front cover assembly is characterized in that a support through hole and a clamping groove are formed in the front support, a clamping arm is arranged on the lock cylinder, the support through hole is larger than the lock cylinder and is inserted into the support through hole, the lock cylinder can be arranged in the support through hole to enable the radial back and forth movement of the support through hole to enable the clamping arm to be clamped into or shifted out of the clamping groove, the front cover assembly further comprises a front decoration cover, the front decoration cover is provided with a front cover through hole matched with the lock cylinder, the outer diameter of the front decoration cover is larger than the support through hole, and when the front decoration cover covers the front support, the front decoration cover can shield a gap between the lock cylinder and the support through hole and enable the clamping arm to be clamped in the clamping groove.

2. The false insertion lock according to claim 1, further comprising a stop arm and a positioning wall respectively disposed on the front bracket and the lock cylinder, wherein when the lock arm is inserted into the lock slot, the stop arm and the positioning wall are combined to limit the movement of the lock arm out of the lock slot.

3. The false mortise lock according to claim 1, further comprising a limiting rib disposed on the front decorative cover, wherein when the latch arm is latched into the latch slot, the limiting rib is capable of being inserted into the through hole of the bracket to limit the movement of the latch arm out of the latch slot.

4. The false mortise lock according to any one of claims 1 to 3, wherein the rear cover assembly includes a rear bracket, and the knob is rotatably disposed on the rear bracket.

5. The pseudo mortise lock according to claim 4, further comprising a connection screw, wherein the lock body is provided with a positioning through hole, and the connection screw passes through the screw hole of the rear bracket and the positioning through hole of the lock body in sequence and is connected to the front bracket so as to connect the front cover assembly, the lock body and the rear cover assembly together.

6. The false mortise lock according to claim 4, wherein the front decoration cover includes a cover bottom plate and a flange arranged at an edge of the cover bottom plate, and further includes a latch and a groove respectively arranged on the flange and the front bracket, and the front decoration cover is closed to the front bracket by the latch and the groove being combined.

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