CN209179644U

CN209179644U - A kind of safety door latch

Info

Publication number: CN209179644U
Application number: CN201821135964.7U
Authority: CN
Inventors: 罗重山
Original assignee: Xiaogan Yumei Home Creative Design Co Ltd
Current assignee: Xiaogan Yumei Home Creative Design Co Ltd
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2019-07-30
Anticipated expiration: 2028-07-18

Abstract

A kind of safety door latch, belongs to lock technology field.Including grille main body, door handle and lock core, shielded frame is fixed on the outside of the grille main body, the inside two sides of shielded frame offer the first limiting groove respectively, the two sides of grille main body are respectively fixed with the first spacing block set, positioning mechanism is connected between first spacing block set and shielded frame, positioning mechanism includes the first adjustable spring, the first loose slot and positioning column, and limited post is movably set on the inside of the tail end of door handle, and the interface of grille main body and door handle is movably set with push rod；By shielded frame and positioning mechanism, so that grille main body is limited to the inside of shielded frame, the shaking of grille main body is avoided, and positioning mechanism, even if bolt looseness, will not cause grille main body to shake by buffer function；It is very convenient when needing replacing handle, it is not necessary to remove Fang Xin, reduce labor intensity by limited post and push rod, and the second adjustable spring and third adjustable spring that are mutually matched.

Description

A kind of safety door latch

Technical field

The utility model belongs to lock technology field, and in particular to a kind of safety door latch.

Background technique

Door lock is for locking the door, and with the equipment for preventing other people from opening this, present average family generally uses safety It can higher safe-guard door lock.Most of door lock is all directly to be fixed by bolts on door, and the time, bolt was easy pine too long It is de-, it causes door lock to loosen, influences normally to use, and after the damage of door handle, it is necessary to using specific purpose tool by door handle Residual section and Fang Xin are removed together, more troublesome problem, thus it is proposed that a kind of safety door latch.

Utility model content

The purpose of this utility model is to provide a kind of safety door latch, mentioned above in the background art most of to solve Door lock be all directly to be fixed by bolts on door, the time, bolt was easy to loosen, and door lock is caused to loosen too long, influenced normal Use, and door handle damage after, it is necessary to the residual section and Fang Xin of door handle are removed together using specific purpose tool, than Cumbersome problem.

To achieve the above object, the utility model provides the following technical solutions:

A kind of safety door latch, including grille main body, door handle and lock core, the door handle are fixed on the grille main body Outside, the lock core are fixed on the inside of the grille main body, and shielded frame is fixed on the outside of the grille main body, described anti- The inside two sides of shield frame offer the first limiting groove respectively, and the two sides of the grille main body are respectively fixed with and described first The first spacing block set that limiting groove matches is connected with localization machine between first spacing block set and the shielded frame Structure, the positioning mechanism include the first adjustable spring, the first loose slot and positioning column, and activity is set on the inside of the tail end of the door handle It is equipped with limited post, the interface of the grille main body and the door handle is movably set with push rod.

Preferably, first loose slot is opened on the shielded frame, and the end of the positioning column is movably embedding Enter the inside of first loose slot, first adjustable spring is distributed in the slot bottom and the positioning column of first loose slot End face between.

Preferably, the two sides of first loose slot offer the second limiting groove, the outboard end of the positioning column respectively Portion is symmetrically fixed with the second spacing block set to match with second limiting groove.

Preferably, the inside of the door handle offers the second loose slot, and the medial end of the limited post is movably It is embedded in the inside of second loose slot, the inside of second loose slot is additionally provided with the second adjustable spring, and described second Adjustable spring is distributed between the slot bottom of second loose slot and the end face of the limited post.

It preferably, further include Fang Xin, the outer surface of the Fang Xin offers limiting slot, and the outboard end of the limited post is embedding Enter the inside of the limiting slot, the outboard end of the limited post is ramp-like configuration.

Preferably, the inside of the grille main body offers third loose slot, and the medial end of the push rod is movably It is embedded in the inside of the third loose slot, the third loose slot is additionally provided with third adjustable spring, and the third is flexible Spring is located between the slot bottom of the third loose slot and the end face of the push rod.

Preferably, offer notch on the outside of the tail end of the door handle, the notch is sector structure, the push rod it is outer Side end is embedded into the inside of the notch.

Compared with prior art, the utility model has the beneficial effects that

(1) the utility model enables to grille main body to be limited to shielded frame by shielded frame and positioning mechanism Inside, avoid the shaking of grille main body, and positioning mechanism is by buffer function, even if external bolt looseness, also not It will cause grille main body shaking；

(2) the utility model is by limited post and push rod, and the flexible bullet of the second adjustable spring and third being mutually matched Spring, it is very convenient when needing replacing handle, it is not necessary to remove Fang Xin, reduce labor intensity.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the A-A of Fig. 1 of the utility model to schematic cross-sectional view；

Fig. 3 is the portion the C enlarged section structural schematic diagram of Fig. 2 of the utility model；

Fig. 4 is the door handle broken section structural schematic diagram of the utility model；

Fig. 5 is the portion the B enlarged section structural schematic diagram of Fig. 1 of the utility model；

In figure: 1, grille main body；2, door handle；3, lock core；4, shielded frame；5, the first limiting groove；6, positioning mechanism； 7, the first spacing block set；8, the second spacing block set；9, the first adjustable spring；10, the first loose slot；11, the second limiting groove； 12, positioning column；13, the second adjustable spring；14, the second loose slot；15, limited post；16, Fang Xin；17, third adjustable spring；18, Third loose slot；19, push rod；20, notch；21, limiting slot.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

Please referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model provides a kind of safety door latch, including grille main body 1, Door handle 2 and lock core 3, door handle 2 are fixed on the outside of grille main body 1, and lock core 3 is fixed on the inside of grille main body 1, door lock master The outside of body 1 is fixed with shielded frame 4, and the inside two sides of shielded frame 4 offer the first limiting groove 5, grille main body 1 respectively Two sides be respectively fixed with the first spacing block set 7 to match with the first limiting groove 5, the first spacing block set 7 and shielded frame 4 Between be connected with positioning mechanism 6, positioning mechanism 6 includes the first adjustable spring 9, the first loose slot 10 and positioning column 12, door handle 2 Tail end on the inside of be movably set with limited post 15, the interface of grille main body 1 and door handle 2 is movably set with push rod 19.

For the ease of the connection of shielded frame 4 and grille main body 1, and connection is more stable, in the present embodiment, it is preferred that First loose slot 10 is opened on shielded frame 4, and the end of positioning column 12 is movably embedded in the inside of the first loose slot 10, the One adjustable spring 9 is distributed between the slot bottom of the first loose slot 10 and the end face of positioning column 12.

In order to facilitate positioning column 12 in the activity of the inside of the first loose slot 10, and activity is more stable, excellent in the present embodiment Choosing, the two sides of the first loose slot 10 offer the second limiting groove 11 respectively, and the outboard end of positioning column 12 is symmetrically fixed with The second spacing block set 8 to match with the second limiting groove 11.

In order to facilitate activity of the limited post 15 inside the second loose slot 14 with reset, in the present embodiment, it is preferred that door is held 2 inside is offered the second loose slot 14, the medial end of limited post 15 is movably embedded in the inside of the second loose slot 14, The inside of second loose slot 14 is additionally provided with the second adjustable spring 13, and the second adjustable spring 13 is distributed in the second loose slot 14 Between slot bottom and the end face of limited post 15.

In order to enable square core 16 and the connection of door handle 2 are more stable, in the present embodiment, it is preferred that the side's of further including core 16, The outer surface of square core 16 offers limiting slot 21, and the outboard end of limited post 15 is embedded in the inside of limiting slot 21, limited post 15 Outboard end is ramp-like configuration.

In order to facilitate the activity of push rod 19 with reset, in the present embodiment, it is preferred that the inside of grille main body 1 offers the Three loose slots 18, the medial end of push rod 19 are movably embedded in the inside of third loose slot 18, and third loose slot 18 is also set It is equipped with third adjustable spring 17, and third adjustable spring 17 is located between the slot bottom of third loose slot 18 and the end face of push rod 19.

In order to limit direction of rotation and the range of a handle 2, in the present embodiment, it is preferred that opened on the outside of the tail end of door handle 2 Equipped with notch 20, notch 20 is sector structure, and the outboard end of push rod 19 is embedded into the inside of notch 20.

The working principle and process for using of the utility model: in use, grille main body 1 is fixed by bolts on door i.e. Can, by key and the lock core 3 that matches, key is injected in the hole of lock core 3, can carry out using；

Shielded frame 4 is fixed by bolts on door, and the first spacing block set 7 is enabled to be embedded in the first limiting groove 5 Inside, even if bolt looseness, due to the presence of positioning mechanism 6, under the action of the first adjustable spring 9, positioning column 12 The first spacing block set 7 is propped up, ensure that the stability of grille main body 1, when replacing door handle 2, push rod 19 is first pushed up, makes Push rod 19 is separated with third loose slot 18, at this point, a handle 2 is rotated counterclockwise, since the outboard end of limited post 15 is inclination Shape structure, in the process of revolving door handle 2, limited post 15 is separated with limiting slot 21, that is, can be taken off a handle 2.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of safety door latch, including grille main body (1), door handle (2) and lock core (3), the door handle (2) is fixed on described The outside of grille main body (1), the lock core (3) are fixed on the inside of the grille main body (1), the grille main body (1) it is outer Side is fixed with shielded frame (4), it is characterised in that: it is recessed that the inside two sides of the shielded frame (4) offer the first limit respectively Slot (5), the two sides of the grille main body (1) are respectively fixed with the first limit convex to match with first limiting groove (5) Block (7) is connected with positioning mechanism (6), the positioning mechanism between first spacing block set (7) and the shielded frame (4) It (6) include the first adjustable spring (9), the first loose slot (10) and positioning column (12), activity on the inside of the tail end of the door handle (2) It is provided with limited post (15), the interface of the grille main body (1) and the door handle (2) is movably set with push rod (19).

2. a kind of safety door latch according to claim 1, it is characterised in that: first loose slot (10) is opened in described On shielded frame (4), the end of the positioning column (12) is movably embedded in the inside of first loose slot (10), and described One adjustable spring (9) is distributed between the slot bottom of first loose slot (10) and the end face of the positioning column (12).

3. a kind of safety door latch according to claim 1, it is characterised in that: distinguish the two sides of first loose slot (10) It offers the second limiting groove (11), the outboard end of the positioning column (12) is symmetrically fixed with and second limiting groove (11) the second spacing block set (8) to match.

4. a kind of safety door latch according to claim 1, it is characterised in that: the inside of the door handle (2) offers Two loose slots (14), the medial end of the limited post (15) are movably embedded in the inside of second loose slot (14), institute The inside for stating the second loose slot (14) is additionally provided with the second adjustable spring (13), and second adjustable spring (13) is distributed in institute It states between the slot bottom of the second loose slot (14) and the end face of the limited post (15).

5. a kind of safety door latch according to claim 4, it is characterised in that: it further include (16) Fang Xin, the Fang Xin (16) Outer surface offer limiting slot (21), the outboard end of the limited post (15) is embedded in the inside of the limiting slot (21), institute The outboard end for stating limited post (15) is ramp-like configuration.

6. a kind of safety door latch according to claim 1, it is characterised in that: the inside of the grille main body (1) offers Third loose slot (18), the medial end of the push rod (19) are movably embedded in the inside of the third loose slot (18), institute Being additionally provided with third adjustable spring (17) for third loose slot (18) is stated, and the third adjustable spring (17) is located at the third Between the slot bottom of loose slot (18) and the end face of the push rod (19).

7. a kind of safety door latch according to claim 6, it is characterised in that: opened up on the outside of the tail end of the door handle (2) Have notch (20), the notch (20) is sector structure, and the outboard end of the push rod (19) is embedded into the notch (20) It is internal.