CN109779398B

CN109779398B - Spring bolt lock assembly for door lock

Info

Publication number: CN109779398B
Application number: CN201910241728.6A
Authority: CN
Inventors: 徐钜祥
Original assignee: Wenzhou Jinfu Locks Co ltd
Current assignee: Wenzhou Jinfu Locks Co ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2024-04-09
Anticipated expiration: 2039-03-28
Also published as: CN109779398A; GB2587435A; GB2587435B; GB201914243D0

Abstract

The invention discloses a novel latch lock assembly for a door lock, which comprises a shell and side panels, wherein the shell comprises an upper cover and a bottom shell, the latch lock assembly is arranged in the shell and comprises a latch, a chute is arranged in the middle of the latch, top grooves are arranged on two sides of the chute, the latch is arranged at the upper end of the shell, latch fixing mechanisms are arranged on two sides of the latch, and a latch reset mechanism is arranged in the latch. The invention has the advantages that when the door is normally open, the spring tongue is retracted into the lock body through the spring tongue fixing mechanism, so that potential safety hazards can be effectively prevented, and simultaneously, the spring tongue is ejected and retracted, and through the arrangement and installation of the sliding plate in the shell, the door lock can achieve the mute effect, and the noise can be effectively reduced.

Description

Spring bolt lock assembly for door lock

Technical Field

The invention relates to a hardware lockset, in particular to a latch lock assembly for a door lock.

Background

The existing lock generally comprises a lock box, a lock tongue (comprising a bevel tongue and a main lock tongue) arranged on the lock box and a side panel arranged on one side of the lock box and provided with a lock tongue hole, wherein the lock tongue is matched with the lock tongue hole, and can extend into the lock tongue hole (the bevel tongue corresponds to the bevel tongue hole and the main lock tongue corresponds to the main lock tongue hole).

Therefore, the traditional lockset always has a certain potential safety hazard in the use process, the inclined tongue is always exposed outside the lock box in a normally open state, if the door is in a half-open state, the exposed inclined tongue is easily touched by a person to cause unnecessary damage, and meanwhile, the inclined tongue is outwards locked to be ejected out due to the retraction of the inclined tongue when the door is closed, so that noise is easily generated.

Disclosure of Invention

Aiming at the problems of the existing latch lock, the invention provides a latch lock component for a door lock and the door lock, which have the characteristics of exquisite structure, convenient use and safety and silence.

The invention solves the problems by adopting the following technical scheme:

the utility model provides a latch lock subassembly for lock, includes casing and side board, the casing includes upper cover and drain pan, be equipped with latch lock subassembly in the casing, latch lock subassembly includes a latch, latch middle part is equipped with the spout, the spout both sides are equipped with the roof groove, the latch sets up in the casing upper end, latch both sides are equipped with latch fixed establishment, be equipped with latch canceling release mechanical system in the latch.

Further, the spring tongue fixing mechanism is arranged on two sides of the spring tongue and comprises a top pin arranged in a top groove and a top block symmetrically arranged on a bottom shell, wherein the top block is internally and centrally controlled, a first spring is arranged in the top block, a stop pin is arranged at the front end of the first spring, a top hole which is matched with the stop pin is formed in the top pin, and the spring tongue resetting mechanism is arranged between the top pins.

Still further, bullet tongue canceling release mechanical system includes the smooth round pin that sets up in the spout, the smooth round pin front end is equipped with the marble, smooth round pin end is equipped with the ejector pin adaptation breach, smooth round pin rear side is equipped with reset spring.

Still further, the bullet tongue rear still is equipped with ejecting subassembly, ejecting subassembly is including the fixed mounting panel that sets up on the bullet tongue, be equipped with spacing slider on the mounting panel, the mounting panel rear side is equipped with the second spring.

Further, the side face of the top block is also provided with an extension part.

Through the use of the extension part, the ejection tongue locks the ejection pin in the ejection tongue when the ejection tongue is ejected.

Further, the side board adaptation is installed in casing one side, the side board upper end is equipped with the latch lockhole with the latch adaptation, latch lockhole one side is equipped with auxiliary flange, auxiliary flange passes through reset torsion spring setting on the side board, still be equipped with a plurality of slide boards on the casing, the slide board is used for setting up latch lock subassembly.

The auxiliary flange and the reset torsion spring are matched for use, when the door is closed, the marble is not influenced to touch the auxiliary flange, and when the door is opened, the auxiliary flange rotates along the opening direction through the reset torsion spring, so that the force of the marble touching the auxiliary flange can not reach the ejecting strength of the elastic tongue, and the elastic tongue can be stably in a retracted state.

Further, the lower end of the spring tongue is further provided with a locking mechanism, the locking mechanism comprises a locking hole, a second spring is arranged in the locking hole, and a lock column is arranged at the front end of the second spring.

The locking mechanism is arranged, when the latch bolt is in a retracted state, the lock column can be ejected to prevent the door handle of the door lock which is adaptively installed from rotating.

From the above technical solution, the advantages of the present invention are:

1. when the door is normally open, the spring tongue is retracted into the lock body through the spring tongue fixing mechanism, so that potential safety hazards can be effectively prevented;

2. the spring tongue is ejected and retracted, and the sliding plate in the shell is arranged to enable the door lock to achieve a mute effect, so that noise can be effectively reduced;

3. the invention has the advantages of easy manufacture, convenient assembly, stable structure and durability.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the side panel of the present invention at another angle;

FIG. 3 is a schematic view of the structure of the pop-up state of the present invention;

FIG. 4 is a schematic view of the structure of the present invention in a retracted state;

FIG. 5 is a schematic cross-sectional view of the present invention in a retracted state;

FIG. 6 is a schematic view of a latch mechanism of the present invention in partial cross-section; and

fig. 7 is a schematic view of a partially cut-away structure of the latch mechanism of the present invention.

Detailed Description

Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.

Referring to fig. 1 to 7, a latch lock assembly for a door lock as shown in fig. 1 to 7 includes a housing 100 and a side panel 200, the housing 100 includes an upper cover 101 and a bottom case 102, a latch lock assembly 110 is disposed in the housing 100, the latch lock assembly 110 includes a latch 111, a chute 112 is disposed in the middle of the latch 111, top slots 113 are disposed on two sides of the chute 112, the latch 111 is disposed at an upper end of the housing 100, latch fixing mechanisms 130 are disposed on two sides of the latch 111, and a latch reset mechanism 140 is disposed in the latch 111.

As shown in fig. 5 and 6, the latch fixing mechanism 130 is disposed on two sides of the latch 111, and includes a top pin 131 disposed in the top slot 113, and symmetrically disposed top blocks 132 fixed on the bottom shell 102, the top blocks 132 are hollow, a first spring 133 is disposed in the top blocks 132, a stop pin 134 is disposed at a front end of the first spring 133, a top hole 135 adapted to the stop pin 134 is disposed on the top pin 131, and the latch resetting mechanism 140 is disposed between the top pins 131.

As shown in fig. 5 and 6, the latch return mechanism 140 includes a sliding pin 141 disposed in the chute 112, a marble 142 is disposed at the front end of the sliding pin 141, a notch 143 adapted to the ejector pin 131 is disposed at the end of the sliding pin 141, and a return spring 144 is disposed at the rear side of the sliding pin 141.

As shown in fig. 4, an ejector assembly 160 is further disposed behind the latch 111, the ejector assembly 160 includes a mounting plate 161 fixedly disposed on the latch 111, a limit slider 162 is disposed on the mounting plate 161, and a second spring 163 is disposed on the rear side of the mounting plate 161.

As shown in fig. 6 and 7, the side of the top block 132 is further provided with an extension 136.

As shown in fig. 1 and 3, the side panel 200 is adapted to be installed on one side of the housing 100, a latch lock hole 201 adapted to the latch 111 is provided at the upper end of the side panel 200, an auxiliary flange 202 is provided on one side of the latch lock hole 201, the auxiliary flange 202 is disposed on the side panel through a reset torsion spring 203, a plurality of slide plates 103 are further provided on the housing 100, and the slide plates 103 are used for setting the latch lock assembly 110.

As shown in fig. 7, a locking mechanism is further disposed at the lower end of the latch 111, the locking mechanism includes a locking hole 114, a second spring 115 is disposed in the locking hole 114, and a locking post 116 is disposed at the front end of the second spring 115.

When the door is normally opened, the latch bolt is retracted into the lock body due to the action of the door opening, the stop pin is ejected out by the first spring and clamped in the ejection hole, so that the latch bolt is in an retracted state when the door is normally opened, meanwhile, no potential safety hazard exists when the door is in a normally opened state, the latch bolt bumps against the auxiliary flange when the door is closed, the sliding pin is retracted, the ejector pin is ejected out, the stop pin is ejected back into the ejection block, and meanwhile, the latch bolt is ejected out through the rear ejection assembly, and the slide plate is matched to enable the latch bolt to enter and exit to achieve a mute effect.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a latch lock assembly for door lock, includes casing (100) and side board (200), casing (100) are equipped with latch lock assembly (110) including upper cover (101) and drain pan (102), a serial communication port, be equipped with latch lock assembly (110) in casing (100), latch lock assembly (110) are including a latch (111), latch (111) middle part is equipped with spout (112), spout (112) both sides are equipped with tongue (113), latch (111) set up in casing (100) upper end, latch (111) both sides are equipped with latch fixed establishment (130), be equipped with latch return mechanism (140) in latch (111), latch fixed establishment (130) set up in latch (111) both sides, including setting up in tongue (131) top pin (131), latch return mechanism (140) are including setting up between top pin (131), latch return mechanism (140) are including setting up sliding pin (141) in spout (112), sliding pin (141) end are equipped with and adaptation top pin (111) top pin (131), can be equipped with lock hole (114) in two lock hole (114) shape locking mechanism (130), the front end of the second spring (115) is provided with a lock column (116).

2. The latch lock assembly according to claim 1, wherein the latch fixing mechanism (130) comprises symmetrically arranged top blocks (132) fixed on the bottom shell (102), the top blocks (132) are hollow, first springs (133) are arranged in the top blocks (132), stop pins (134) are arranged at the front ends of the first springs (133), and top holes (135) which are matched with the stop pins (134) are formed in the top pins (131).

3. The latch lock assembly according to claim 2, wherein a marble (142) is provided at a front end of the slide pin (141), and a return spring (144) is provided at a rear side of the slide pin (141).

4. A latch lock assembly for a door lock according to claim 3, wherein an ejector assembly (160) is further arranged behind the latch (111), the ejector assembly (160) comprises a mounting plate (161) fixedly arranged on the latch (111), a limit slider (162) is arranged on the mounting plate (161), and a second spring (163) is arranged on the rear side of the mounting plate (161).

5. The latch lock assembly according to claim 2, wherein the side of the top block (132) is further provided with an extension (136).

6. The latch lock assembly for a door lock according to claim 1, wherein the side panel (200) is mounted on one side of the housing (100) in an adapting manner, a latch lock hole (201) adapted to the latch (111) is formed in the upper end of the side panel (200), an auxiliary flange (202) is formed on one side of the latch lock hole (201), the auxiliary flange (202) is disposed on the side panel through a reset torsion spring (203), a plurality of slide plates (103) are further disposed on the housing (100), and the slide plates (103) are used for setting the latch lock assembly (110).