CN204386273U - A kind of tongue driving device of safety door latch - Google Patents
A kind of tongue driving device of safety door latch Download PDFInfo
- Publication number
- CN204386273U CN204386273U CN201520010331.3U CN201520010331U CN204386273U CN 204386273 U CN204386273 U CN 204386273U CN 201520010331 U CN201520010331 U CN 201520010331U CN 204386273 U CN204386273 U CN 204386273U
- Authority
- CN
- China
- Prior art keywords
- driving wheel
- connecting axle
- dead bolt
- wheel body
- mount pad
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of tongue driving device of safety door latch, comprise driving wheel, driving shaft, dead bolt connecting axle, mount pad and limited block, described mount pad is provided with connecting axle through hole, one end of described dead bolt connecting axle is passed connecting axle through hole and is connected to limited block, described driving wheel comprises driving wheel body and is arranged at the actuating arm of driving wheel body one end, described actuating arm is linked in the position of dead bolt connecting axle between mount pad and limited block away from one end of driving wheel body, the middle part of described driving wheel body is provided with foursquare driving shaft through hole, described driving shaft is through driving shaft through hole both sides, reduction torsion spring is provided with in described driving wheel body.The utility model structure is more simple, manufacturing cost is lower, it is more convenient to assemble, and not fragile, long service life, better can realize the reciprocating motion of dead bolt.
Description
Technical field
The utility model relates to the technical field of lock, is specifically related to a kind of tongue driving device of safety door latch.
Background technology
Door lock is a kind of device that door-plate can be pinned, existing door lock generally comprises lock body, dead bolt, tongue driving device, lever handle device and safeties, lock body comprises the lock body housing be arranged in a body, and tongue driving device is positioned at the external dead bolt of lock body shell by being installed in lock body housing to be connected to, and lever handle device to be located at lock body shell external and be connected to tongue driving device, the running of bolt device is driven, with the reciprocating motion making tongue driving device drive dead bolt by lever handle device.But the structure of the tongue driving device of existing safety door latch is usually comparatively complicated, and not only manufacturing cost is high, and install inconvenient, assembly technology is high, and easily damages, and application life is short.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is more simple, manufacturing cost is lower, it is more convenient to assemble, and the tongue driving device of the safety door latch of not fragile, long service life.
In order to solve the problem existing for background technology, the utility model have employed following technical scheme: a kind of tongue driving device of safety door latch, comprise driving wheel, driving shaft, dead bolt connecting axle, mount pad and limited block, described mount pad is provided with connecting axle through hole, one end of described dead bolt connecting axle is passed connecting axle through hole and is connected to limited block, described driving wheel comprises driving wheel body and is arranged at the actuating arm of driving wheel body one end, described actuating arm is linked in the position of dead bolt connecting axle between mount pad and limited block away from one end of driving wheel body, the middle part of described driving wheel body is provided with foursquare driving shaft through hole, described driving shaft is through driving shaft through hole both sides, reduction torsion spring is provided with in described driving wheel body.
Pass through technique scheme, the tongue driving device structure of this safety door latch is more simple, manufacturing cost is lower, it is more convenient to assemble, and not fragile, long service life, when using external force rotating driveshaft, driving shaft just can drive driving wheel to drive the motion of dead bolt connecting axle, when after release external force, driving wheel is by self-resetting under the effect of reduction torsion spring, dead bolt connecting axle self-resetting under the effect of driving wheel simultaneously, thus when by when dead bolt connecting axle loads onto dead bolt, can be good at the reciprocating motion realizing dead bolt, automatic locking to realize.
Further setting of the present utility model: be provided with annular cavity in described driving wheel body, described annular cavity and driving shaft through hole are coaxially arranged, and described reduction torsion spring is arranged in annular cavity.
By technique scheme, by being provided with the annular cavity installing reduction torsion spring in driving wheel body, thus reduction torsion spring can be avoided directly to be exposed to driving wheel body exterior, the effect of protection reduction torsion spring can be played, be conducive to extending its application life.
Further setting of the present utility model: the lateral wall of described driving wheel body offers two otch communicated with annular cavity, two ends of described reduction torsion spring are stretched out by two otch of driving wheel body respectively.
By technique scheme, thus fixing and spacing effect can be played to reduction torsion spring, with the phenomenon avoiding reduction torsion spring that skew occurs, and produce deviation when directly causing driving wheel to drive dead bolt connecting axle to move back and forth.
Further setting of the present utility model: one end that described actuating arm is linked in dead bolt connecting axle is provided with breach, the sidepiece of described breach is the drive division of actuating arm, and described drive division closely abuts with the side of limited block near mount pad.
Pass through technique scheme, by being provided with breach on actuating arm, thus spacing effect can be played to dead bolt connecting axle, avoid dead bolt connecting axle in the phenomenon of radial position generation off normal, so that tongue driving device can better drive dead bolt to lock accurately, drive the motion of dead bolt connecting axle by the drive division on actuating arm, structure is more compact simultaneously.
Further setting of the present utility model: described dead bolt connecting axle is positioned at mount pad and is arranged with back-moving spring away from the side of limited block, and described back-moving spring abuts against near the side of mount pad and mount pad.
By technique scheme, the setting of back-moving spring can limit the stroke of dead bolt connecting axle, to avoid dead bolt connecting axle stroke long, dead bolt connecting axle can be enable better to reset simultaneously.
The beneficial effects of the utility model are: the tongue driving device structure of safety door latch of the present utility model is more simple, manufacturing cost is lower, it is more convenient to assemble, and not fragile, long service life, better can realize the reciprocating motion of dead bolt.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tongue driving device of a kind of safety door latch of the utility model;
Fig. 2 is the structural representation of driving wheel in the tongue driving device of a kind of safety door latch of the present utility model.
Detailed description of the invention
In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Fig. 1, shown in Fig. 2, the tongue driving device of a kind of safety door latch of the utility model embodiment, comprise driving wheel 1, driving shaft 2, dead bolt connecting axle 3, mount pad 4 and limited block 5, its mount pad 4 is provided with connecting axle through hole 41, one end of dead bolt connecting axle 3 is passed connecting axle through hole 41 and is connected to limited block 5, driving wheel 1 comprises driving wheel body 11 and is arranged at the actuating arm 12 of driving wheel body 11 one end, further, actuating arm 12 is linked in the position of dead bolt connecting axle 3 between mount pad 4 and limited block 5 away from one end of driving wheel body 11, further, the middle part of driving wheel body 11 is provided with foursquare driving shaft through hole 111, its driving shaft 2 is through driving shaft through hole 111 both sides, further, reduction torsion spring 6 is provided with in driving wheel body 11, the tongue driving device structure of this safety door latch is more simple, manufacturing cost is lower, assemble more convenient, and it is not fragile, long service life, when using external force rotating driveshaft 2, driving shaft 2 just can drive driving wheel 1 to drive dead bolt connecting axle 3 to move, when after release external force, driving wheel 1 is by self-resetting under the effect of reduction torsion spring 6, dead bolt connecting axle 3 self-resetting under the effect of driving wheel 1 simultaneously, thus when by when dead bolt connecting axle 3 loads onto dead bolt, can be good at the reciprocating motion realizing dead bolt, automatic locking to realize.
In the present embodiment; annular cavity 112 is provided with in driving wheel body 11; and annular cavity 112 and driving shaft through hole 111 are coaxially arranged; its reduction torsion spring 6 is arranged in annular cavity 112; by being provided with the annular cavity 112 installing reduction torsion spring 6 in driving wheel body 11; thus it is outside that reduction torsion spring 6 can be avoided directly to be exposed to driving wheel body 11, the effect of protection reduction torsion spring 6 can be played, be conducive to extending its application life.
In the present embodiment, the lateral wall of driving wheel body 11 offers two otch 113 communicated with annular cavity 112, two ends 61 of reduction torsion spring 6 are stretched out by two otch 113 of driving wheel body 11 respectively, thus fixing and spacing effect can be played to reduction torsion spring 6, with the phenomenon avoiding reduction torsion spring 6 that skew occurs, and produce deviation when directly causing driving wheel 11 to drive dead bolt connecting axle 3 to move back and forth.
In the present embodiment, one end that actuating arm 12 is linked in dead bolt connecting axle 3 is provided with breach 121, the sidepiece of breach 121 is the drive division 122 of actuating arm 12, and drive division 122 closely abuts with the side of limited block 5 near mount pad 4, by being provided with breach 121 on actuating arm 12, thus spacing effect can be played to dead bolt connecting axle 3, avoid dead bolt connecting axle 3 in the phenomenon of radial position generation off normal, so that tongue driving device can better drive dead bolt to lock accurately, drive dead bolt connecting axle 3 to move by the drive division 122 on actuating arm 12 simultaneously, structure is more compact.
In the present embodiment, dead bolt connecting axle 3 is positioned at mount pad 4 and is arranged with back-moving spring 7 away from the side of limited block 5, this back-moving spring 7 abuts against near the side of mount pad 4 and mount pad 4, the setting of back-moving spring 7 can limit the stroke of dead bolt connecting axle 3, to avoid dead bolt connecting axle 3 stroke long, dead bolt connecting axle 3 can be made better to reset simultaneously.
Claims (5)
1. the tongue driving device of a safety door latch, it is characterized in that: comprise driving wheel, driving shaft, dead bolt connecting axle, mount pad and limited block, described mount pad is provided with connecting axle through hole, one end of described dead bolt connecting axle is passed connecting axle through hole and is connected to limited block, described driving wheel comprises driving wheel body and is arranged at the actuating arm of driving wheel body one end, described actuating arm is linked in the position of dead bolt connecting axle between mount pad and limited block away from one end of driving wheel body, the middle part of described driving wheel body is provided with foursquare driving shaft through hole, described driving shaft is through driving shaft through hole both sides, reduction torsion spring is provided with in described driving wheel body.
2. the tongue driving device of a kind of safety door latch according to claim 1, it is characterized in that: in described driving wheel body, be provided with annular cavity, described annular cavity and driving shaft through hole are coaxially arranged, and described reduction torsion spring is arranged in annular cavity.
3. the tongue driving device of a kind of safety door latch according to claim 2, it is characterized in that: the lateral wall of described driving wheel body offers two otch communicated with annular cavity, two ends of described reduction torsion spring are stretched out by two otch of driving wheel body respectively.
4. the tongue driving device of a kind of safety door latch according to claim 1, it is characterized in that: one end that described actuating arm is linked in dead bolt connecting axle is provided with breach, the sidepiece of described breach is the drive division of actuating arm, and described drive division closely abuts with the side of limited block near mount pad.
5. the tongue driving device of a kind of safety door latch according to claim 1, is characterized in that: described dead bolt connecting axle is positioned at mount pad and is arranged with back-moving spring away from the side of limited block, and described back-moving spring abuts against near the side of mount pad and mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010331.3U CN204386273U (en) | 2015-01-07 | 2015-01-07 | A kind of tongue driving device of safety door latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010331.3U CN204386273U (en) | 2015-01-07 | 2015-01-07 | A kind of tongue driving device of safety door latch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386273U true CN204386273U (en) | 2015-06-10 |
Family
ID=53359005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520010331.3U Expired - Fee Related CN204386273U (en) | 2015-01-07 | 2015-01-07 | A kind of tongue driving device of safety door latch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204386273U (en) |
-
2015
- 2015-01-07 CN CN201520010331.3U patent/CN204386273U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325204 Ruian international automobile and motorcycle industrial base, Wenzhou, Zhejiang, 488 Patentee after: Wenzhou European building hardware Co., Ltd. Address before: 325204 No. 3-5 Chenzhaiwang Road, Tangxia Town, Ruian City, Zhejiang Province Patentee before: The human relations architectural hardware Co., Ltd in Rui'an City Europe |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20190107 |