CN203452465U - Novel mortice door lock mounting and fixing structure - Google Patents
Novel mortice door lock mounting and fixing structure Download PDFInfo
- Publication number
- CN203452465U CN203452465U CN201320503803.XU CN201320503803U CN203452465U CN 203452465 U CN203452465 U CN 203452465U CN 201320503803 U CN201320503803 U CN 201320503803U CN 203452465 U CN203452465 U CN 203452465U
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- Prior art keywords
- door
- pad
- protective cover
- door plate
- fastening bolt
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Abstract
The utility model discloses a novel mortice door lock mounting and fixing structure which comprises a lock cylinder arranged in a door plate lock hole, an outer protection cover which covers the front end of the lock cylinder and a front door plate and an inner protection cover which covers the rear end of the lock cylinder and a rear door plate. The novel mortice door lock mounting and fixing structure is characterized in that a pad is arranged on the inner side of the front door plate; a fastening bolt penetrates through the inner protection cover, the rear door plate, the pad and the front door plate in sequence to be screwed with the outer protection cover; a limiting boss arranged at the front end of the fastening bolt presses against the pad to fixedly clamp the front door plate between the pad and the outer protection cover; the rear end of the fastening bolt is also screwed with a nut to fix the inner protection cover on the rear door plate. The novel mortice door lock mounting and fixing structure disclosed by the utility model has the beneficial effects that (1) the structure is simple, the production cost is low and the market competitiveness is improved; (2) the protection covers are respectively connected with the front door plate and the rear door plate through the fastening bolt, so that the prying resistant property of the protection covers can be effectively improved, and the shortcomings of sinking of the door plates and the like, which are easily caused by the conventional connection mode, can be overcome.
Description
Technical field
The utility model relates to a kind of door lock, specifically a kind of novel mortise door lock mount fixing structure.
Background technology
Security door generally adopts mortise door lock core, in order to protect mortise door lock core, often in the outer panels of security door, installs protector additional.The protector of existing mortise door lock core comprises the inside and outside protective cover that mortise door lock core is covered being arranged on the inside and outside panel of security door, it is corresponding with the lockhole on mortise door lock core that anti-drilling sheet on outer protective cover is provided with perforate, because be is connected interior protective cover with screw and is fixed on security door in security door with outer protective cover, thereby outer protective cover is easy to be pried open and destroys door lock, and therefore the explosion-proof performance of this protector is poor.So China Patent No.: 201210516895.5 have proposed a kind of protector of improved mortise door lock core, comprise the outer protective cover that mortise door lock core is covered being arranged in security door outer panels, outer protective cover is provided with the protuberance matching with mortise door lock core end, protuberance is provided with rotatable lamella, it is characterized in that also comprising being located in security door outer panels being enclosed within the fixed head on mortise door lock core, described outer protective cover is used through the rivet of security door outer panels or screw and is fixed on described fixed head.Although said structure has been strengthened outer protective cover explosion-proof performance greatly, be not easy to be prized, improved the barrier propterty of its protection lock core, can effectively protect lock core.But well-known, existing security door comprises inside and outside double layer of metal thin plate, the hollow position filled with foaming material between two-layer door-plate mostly.If so protective cover is just fixed on outer field door-plate, lawless person easily pries open monoblock door-plate and destroys door-plate.Also having technical scheme is through fixing with backing plate below after two-layer door-plate by protective cover, but applicant finds in long-term installation experiment, moment when being fastenedly connected bolt requires very strict, if cross pine, cause protective cover to install insecure, if tension, the pulling force that bolt produces can cause door-plate depression by the Distance Shortened between two side door plates, so be necessary the mounting structure of existing door lock to do further to improve.
Utility model content
The purpose of this utility model is the shortcoming existing in order to overcome prior art, provides a kind of simple in structure, easy to install, can effectively promote a kind of novel mortise door lock mount fixing structure of lockset safety performance.
The utility model object realizes with the following methods: a kind of novel mortise door lock mount fixing structure, it comprises the lock core of installing in lock-hole of door board, cover the outer protective cover on lock core front end and front door, and cover the interior protective cover on lock core rear end and Rear Door, it is characterized in that: described front door inner side is provided with pad, one fastening bolt is successively through interior protective cover, Rear Door, after pad and front door, be spirally connected with outer protective cover, fastening bolt front end is provided with positive stop lug boss and is pressed on pad, front door is clamped between pad and outer protective cover, described fastening bolt rear end is also bolted with nut interior protective cover is fixed on Rear Door.
Described outer protective cover is provided with screw and is spirally connected fixing through front door and pad.
The rear end face of described fastening bolt is provided with cross recess or flat recess.
Positive stop lug boss diameter on described fastening bolt is greater than the diameter of installing hole on pad.
The beneficial effects of the utility model are: 1) simple in structure, cost of production is low, improve the market competitiveness.2) utilize fastening bolt that protective cover is connected with Rear Door with front door respectively simultaneously, can effectively promote the pick-proof ability of protective cover, also avoided traditional connected mode easily to cause the drawbacks such as door-plate depression.
Accompanying drawing explanation
Fig. 1 is the utility model general assembly design sketch.
Fig. 2 is the utility model assembling drawing.
Fig. 3 is the utility model structure sectional view.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is made to concrete further instruction.A kind of novel mortise door lock mount fixing structure, it comprises the lock core 1 of installing in lock-hole of door board, cover the outer protective cover 3 on lock core front end and front door 2, and cover the interior protective cover 5 on lock core 1 rear end and Rear Door 4, it is characterized in that: described front door 2 inner sides are provided with pad 6, one fastening bolt 7 is successively through interior protective cover 5, Rear Door 4, after pad 6 and front door 2 and outer protective cover 3 be spirally connected, fastening bolt 7 front ends are provided with positive stop lug boss 71 and are pressed on pad 6, front door 2 is clamped between pad 6 and outer protective cover 3, described fastening bolt 7 rear ends are also bolted with nut 72 interior protective cover 5 are fixed on Rear Door 4.
Described outer protective cover 3 is provided with screw 31 and is spirally connected fixing through front door 2 and pad 6.
The rear end face of described fastening bolt 7 is provided with cross recess 73 or flat recess.
Positive stop lug boss 71 diameters on described fastening bolt 7 are greater than the diameter of installing hole 61 on pad 6.
Operating principle: when mounted, utilize fastening bolt 7 successively through after interior protective cover 5, Rear Door 4, pad 6 and front door 2 and outer protective cover 3 be spirally connected, the front end of fastening bolt is provided with positive stop lug boss and is pressed on pad, first by this bolt, is arranged in external door panel outer protective cover is fastening.Then the nut by fastening bolt rear end is fixed on interior protective cover 5 on Rear Door 4.Therefore the utility model is compared with conventional art, when guaranteeing to combine closely between outer protective cover and external door panel, also can be fastening with internal hilar plate, and realized the object that outer protective cover can be simultaneously fastenedly connected with inside and outside two-layer door-plate.Therefore when protective cover is subject to external impacts, can share impact force by inside and outside two-layer door-plate simultaneously, promote the impact resistance of lockset.Also after having avoided conventional mounting mode easily to cause two-layer door-plate to be extruded distortion, cave inward simultaneously.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications; the structures of fastening bolt etc., these changes and improvements all fall within the scope of claimed the utility model.
Claims (4)
1. a novel mortise door lock mount fixing structure, it comprises the lock core (1) of installing in lock-hole of door board, cover the outer protective cover (3) on lock core front end and front door (2), and cover the interior protective cover (5) on lock core (1) rear end and Rear Door (4), it is characterized in that: described front door (2) inner side is provided with pad (6), one fastening bolt (7) is successively through interior protective cover (5), Rear Door (4), after pad (6) and front door (2) and outer protective cover (3) be spirally connected, fastening bolt (7) front end is provided with positive stop lug boss (71) and is pressed on pad (6), front door (2) is clamped between pad (6) and outer protective cover (3), described fastening bolt (7) rear end is also bolted with nut (72) interior protective cover (5) is fixed on Rear Door (4).
2. a kind of novel mortise door lock mount fixing structure according to claim 1, is characterized in that: described outer protective cover (3) is provided with screw (31) and is spirally connected fixing through front door (2) and pad (6).
3. a kind of novel mortise door lock mount fixing structure according to claim 1, is characterized in that: the rear end face of described fastening bolt (7) is provided with cross recess (73) or flat recess.
4. a kind of novel mortise door lock mount fixing structure according to claim 1, is characterized in that: positive stop lug boss (71) diameter on described fastening bolt (7) is greater than the diameter of the upper installing hole (61) of pad (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503803.XU CN203452465U (en) | 2013-08-19 | 2013-08-19 | Novel mortice door lock mounting and fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503803.XU CN203452465U (en) | 2013-08-19 | 2013-08-19 | Novel mortice door lock mounting and fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452465U true CN203452465U (en) | 2014-02-26 |
Family
ID=50132352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503803.XU Expired - Fee Related CN203452465U (en) | 2013-08-19 | 2013-08-19 | Novel mortice door lock mounting and fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930927A (en) * | 2017-12-18 | 2019-06-25 | 天津骏航科技有限公司 | It is a kind of to rotate flexible automobile-used small door lock |
-
2013
- 2013-08-19 CN CN201320503803.XU patent/CN203452465U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930927A (en) * | 2017-12-18 | 2019-06-25 | 天津骏航科技有限公司 | It is a kind of to rotate flexible automobile-used small door lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140226 Termination date: 20210819 |