CN108756467A - A kind of safety door latch - Google Patents
A kind of safety door latch Download PDFInfo
- Publication number
- CN108756467A CN108756467A CN201810788450.XA CN201810788450A CN108756467A CN 108756467 A CN108756467 A CN 108756467A CN 201810788450 A CN201810788450 A CN 201810788450A CN 108756467 A CN108756467 A CN 108756467A
- Authority
- CN
- China
- Prior art keywords
- main body
- loose slot
- grille main
- slot
- adjustable spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
- E05B3/04—Fastening the knob or the handle shank to the spindle by screws, springs or snap bolts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A kind of safety door latch, belongs to lock technology field.Including grille main body, door handle and lock core, it is fixed with shielded frame on the outside of the grille main body, the inside both sides of shielded frame offer the first limiting groove respectively, the both sides of grille main body are respectively fixed with the first spacing block set, it is connected with detent mechanism between first spacing block set and shielded frame, detent 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；Pass through shielded frame and detent mechanism so that grille main body is limited to the inside of shielded frame, avoids the shaking of grille main body, and detent mechanism, even if bolt looseness, will not cause grille main body to shake by cushioning effect；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
Technical field
The invention belongs to lock technology fields, and in particular to a kind of safety door latch.
Background technology
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 secured 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 use specific purpose tool by door handle
Residual section and Fang Xin are removed together, cumbersome problem, thus it is proposed that a kind of safety door latch.
Invention content
The purpose of the present invention is to provide a kind of safety door latch, to solve most of door mentioned above in the background art
Lock is all directly to be secured by bolts on door, and the time, bolt was easy to loosen, and door lock is caused to loosen too long, influenced normally to make
With, and after the damage of door handle, it is necessary to the residual section and Fang Xin of door handle are removed together using specific purpose tool, it is number
Tired problem.
To achieve the above object, the present invention 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 outer of the grille main body
Side, the lock core are fixed on the inside of the grille main body, and shielded frame, the protection are fixed on the outside of the grille main body
The inside both sides of frame offer the first limiting groove respectively, and the both sides of the grille main body are respectively fixed with and first limit
First spacing block set of position groove match, detent mechanism is connected between first spacing block set and the shielded frame,
The detent mechanism includes the first adjustable spring, the first loose slot and positioning column, the tail end inside activity setting of the door handle
There are limited post, the interface of the grille main body and the door handle to be 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 of first loose slot and the positioning column
End face between.
Preferably, the both 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
The inside of embedded 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 and the end face of the limited post of second loose slot.
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
The inside of the embedded 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 and the end face of the push rod of the third loose slot.
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 beneficial effects of the invention are as follows：
（1）The present invention is enabled to grille main body to be limited to the inside of shielded frame, is kept away by shielded frame and detent mechanism
The shaking of grille main body is exempted from, and detent mechanism is by cushioning effect, even if external bolt looseness, will not cause door lock
Main body is shaken；
（2）The present invention is by limited post and push rod, and the second adjustable spring and third adjustable spring that are mutually matched, is needing
It replaces very convenient when door handle, it is not necessary to remove Fang Xin, reduce labor intensity.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the A-A of Fig. 1 of the present invention to schematic cross-sectional view；
Fig. 3 is the portions the C enlarged section structural schematic diagram of Fig. 2 of the present invention；
Fig. 4 is the door handle broken section structural schematic diagram of the present invention；
Fig. 5 is the portions the B enlarged section structural schematic diagram of Fig. 1 of the present invention；
In figure：1, grille main body；2, door handle；3, lock core；4, shielded frame；5, the first limiting groove；6, detent mechanism；7,
One 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, fixed
Position 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 implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.
It please refers to Fig.1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present invention provides a kind of safety door latch, including grille main body 1, door are held
2 and lock core 3, door handle 2 is fixed on the outside of grille main body 1, and lock core 3 is fixed on the inside of grille main body 1, grille main body 1
Outside be fixed with shielded frame 4, the inside both sides of shielded frame 4 offer the first limiting groove 5 respectively, grille main body 1
Both sides are 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 it
Between be connected with detent mechanism 6, detent mechanism 6 includes the first adjustable spring 9, the first loose slot 10 and positioning column 12, door handle 2
Limited post 15 is movably set on the inside of tail end, grille main body 1 and the interface of door handle 2 are movably set with push rod 19.
It for the ease of the connection of shielded frame 4 and grille main body 1, and connects and more stablizes, 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 and the end face of positioning column 12 of the first loose slot 10.
In order to facilitate positioning column 12 in the activity of the inside of the first loose slot 10, and activity is more stablized, excellent in the present embodiment
Choosing, the both 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 the connection of square core 16 and door handle 2 is more stablized, 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 and the end face of push rod 19 of third loose slot 18.
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 operation principle and process for using of the present invention：In use, grille main body 1 is secured by bolts on door,
By key and the lock core 3 to match, key is injected in the hole of lock core 3, you can used；
Shielded frame 4 is secured by bolts on door, and enables the inside of the first spacing block set 7 the first limiting groove 5 of insertion
Even if bolt looseness, due to the presence of detent mechanism 6, under the action of the first adjustable spring 9, positioning column 12 supports
First spacing block set 7, ensure that the stability of grille main body 1, when replacing door handle 2, first pushes up push rod 19, makes push rod
19 detach with third loose slot 18, at this point, a handle 2 is rotated counterclockwise, since the outboard end of limited post 15 is skewed knot
Structure, in the process of revolving door handle 2, limited post 15 is detached with limiting slot 21, you can takes out door handle 2.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of safety door latch, including grille main body（1）, door handle（2）And lock core（3）, the door handle（2）It is fixed on described
Grille main body（1）Outside, the lock core（3）It is fixed on the grille main body（1）Inside, the grille main body（1）It is outer
Side is fixed with shielded frame（4）, it is characterised in that：The shielded frame（4）To offer the first limit respectively recessed for inside both sides
Slot（5）, the grille main body（1）Both sides be respectively fixed with and first limiting groove（5）The first limit convex to match
Block（7）, first spacing block set（7）With the shielded frame（4）Between be connected with detent mechanism（6）, the detent mechanism
（6）Including the first adjustable spring（9）, the first loose slot（10）And positioning column（12）, the door handle（2）Tail end on the inside of activity
It is provided with limited post（15）, the grille main body（1）With the door handle（2）Interface be 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）It is opened in described
Shielded frame（4）On, the positioning column（12）End be movably embedded in first loose slot（10）Inside, described
One adjustable spring（9）It is distributed in first loose slot（10）Slot bottom and the positioning column（12）End face between.
3. a kind of safety door latch according to claim 1, it is characterised in that：First loose slot（10）Both sides difference
Offer the second limiting groove（11）, the positioning column（12）Outboard end be symmetrically fixed with and second limiting groove
（11）The second spacing block set to match（8）.
4. a kind of safety door latch according to claim 1, it is characterised in that：The door handle（2）Inside offer
Two loose slots（14）, the limited post（15）Medial end be movably embedded in second loose slot（14）Inside, institute
State the second loose slot（14）Inside be additionally provided with the second adjustable spring（13）, and second adjustable spring（13）It is distributed in institute
State the second loose slot（14）Slot bottom and the limited post（15）End face between.
5. a kind of safety door latch according to claim 4, it is characterised in that：Further include Fang Xin（16）, the Fang Xin（16）
Outer surface offer limiting slot（21）, the limited post（15）Outboard end be embedded in the limiting slot（21）Inside, institute
State limited post（15）Outboard end be ramp-like configuration.
6. a kind of safety door latch according to claim 1, it is characterised in that：The grille main body（1）Inside offer
Third loose slot（18）, the push rod（19）Medial end be movably embedded in the third loose slot（18）Inside, institute
State third loose slot（18）Be additionally provided with third adjustable spring（17）, and the third adjustable spring（17）Positioned at the third
Loose slot（18）Slot bottom and the push rod（19）End face between.
7. a kind of safety door latch according to claim 6, it is characterised in that：The door handle（2）Tail end on the outside of open up
There is notch（20）, the notch（20）For sector structure, the push rod（19）Outboard end be embedded into the notch（20）'s
It is internal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788450.XA CN108756467A (en) | 2018-07-18 | 2018-07-18 | A kind of safety door latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788450.XA CN108756467A (en) | 2018-07-18 | 2018-07-18 | A kind of safety door latch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108756467A true CN108756467A (en) | 2018-11-06 |
Family
ID=63970546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810788450.XA Pending CN108756467A (en) | 2018-07-18 | 2018-07-18 | A kind of safety door latch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108756467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360317A (en) * | 2018-11-26 | 2019-02-19 | 大连派欧机电设备有限公司 | A kind of RFID door gear and safety door inhibition method |
-
2018
- 2018-07-18 CN CN201810788450.XA patent/CN108756467A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360317A (en) * | 2018-11-26 | 2019-02-19 | 大连派欧机电设备有限公司 | A kind of RFID door gear and safety door inhibition method |
| CN109360317B (en) * | 2018-11-26 | 2024-06-07 | 索立得(深圳)智能科技有限公司 | RFID door device and safety access control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181106 |
|
| WD01 | Invention patent application deemed withdrawn after publication |