CN110242135B - Door bolt - Google Patents
Door bolt Download PDFInfo
- Publication number
- CN110242135B CN110242135B CN201910186816.0A CN201910186816A CN110242135B CN 110242135 B CN110242135 B CN 110242135B CN 201910186816 A CN201910186816 A CN 201910186816A CN 110242135 B CN110242135 B CN 110242135B
- Authority
- CN
- China
- Prior art keywords
- latch
- plate
- door
- lock tongue
- bolt
- 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.)
- Active
Links
- 230000005484 gravity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The invention discloses a door bolt, which comprises a supporting part, a latch part and a movable part, wherein the rear end part of the supporting part is detachably fixed on a first door body, the front end of the supporting part extends forwards horizontally, the movable part comprises a latch and a limiting plate, the rear upper end edge of the latch is in a right-angle shape, the lower end edge of the latch is in an arc shape which is concave from back to front, the limiting plate horizontally extends and is fixed on the rear upper side of the latch, the limiting plate is detachably lapped on the rear upper side of the supporting part, the latch is rotatably connected in the supporting part, the left end part of the latch part is detachably fixed on a second door body or a door frame, the right end of the latch part extends rightwards transversely, the right end part of the latch part is in releasable sliding contact with the lower end edge of the latch, and the right end part of the latch part is in releasable contact with the rear of the latch. The door bolt disclosed by the invention has the advantages of simple structure and wide application range, and can automatically lock the door when the door is closed, and manual operation is not needed.
Description
Technical Field
The invention relates to a door bolt, in particular to a door bolt capable of automatically locking a door when the door is closed.
Background
A door bolt is a lock that limits the free opening of a door. The lock is a locking mechanism, the functions of the lock are generally realized through a fixed part and a movable part, and the lock is usually manually locked through a transverse H-shaped bolt and a chain-type bolt.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the invention aims to provide the door bolt which has the advantages of simple structure and wide application range, can automatically lock a door when the door is closed, and does not need manual operation.
The invention relates to a door bolt, which comprises a supporting part, a latch part and a movable part, wherein the rear end part of the supporting part is detachably fixed on a first door body, the front end of the supporting part extends forwards horizontally, the movable part comprises a latch and a limiting plate, the rear upper end edge of the latch is in a right angle shape, the lower end edge of the latch is in a concave arc shape from back to front, the limiting plate horizontally extends and is fixed on the rear upper side of the latch, the limiting plate is detachably lapped on the rear upper side of the supporting part, the latch is rotatably connected in the supporting part, the left end part of the latch part is detachably fixed on a second door body or a door frame, the right end of the latch part extends rightwards and transversely, the right end part of the latch part is detachably slipped against the lower end edge of the latch, and the right end part of the latch part is detachably slipped against the rear of the latch.
The door bolt of the invention can also be:
the supporting component comprises a supporting plate and a first fixing plate, the first fixing plate and the first door body are detachably fixed, the supporting plate is in a U shape extending backwards horizontally, the rear end of the supporting plate is fixed on the front side of the first fixing plate, the left end and the right end of the first fixing plate are detachably lapped on the upper sides of the rear parts of the transverse arms at the left end and the right end of the supporting plate, and the lock tongue is rotatably connected in the supporting plate.
The left and right transverse arms of the support plate are respectively provided with a first bolt hole in the middle, the middle upper part of the lock tongue is provided with a second bolt hole, the first bolt penetrates through the first bolt hole and the second bolt hole, and the lock tongue is rotatably connected between the left and right transverse arms of the support plate through the first bolt.
The middle of the upper end and the lower end of the first fixing plate is respectively provided with a first fixing hole, and the second bolt penetrates through the corresponding first fixing hole and is detachably fixed with the first door body.
The door bolt component comprises a second fixing plate and a latch plate, wherein the second fixing plate is detachably fixed on a second door body, the left end part of the latch plate is fixed on the outer side of the second fixing plate, the right end of the latch plate extends right vertically and transversely, the upper edge of the right end part of the latch plate is connected with the edge of the lower end of the lock tongue in a releasable sliding manner, and the right end part of the latch plate is propped against the rear of the lock tongue.
And second fixing holes are respectively formed in the middle of the upper end and the lower end of the second fixing plate, and third bolts penetrate through the corresponding second fixing holes and are detachably fixed with the second door body.
The invention relates to a door bolt, which comprises a supporting part, a latch part and a movable part, wherein the rear end part of the supporting part is detachably fixed on a first door body, the front end of the supporting part extends forwards horizontally, the movable part comprises a latch and a limiting plate, the rear upper end edge of the latch is in a right angle shape, the lower end edge of the latch is in a concave arc shape from back to front, the limiting plate horizontally extends and is fixed on the rear upper side of the latch, the limiting plate is detachably lapped on the rear upper side of the supporting part, the latch is rotatably connected in the supporting part, the left end part of the latch part is detachably fixed on a second door body or a door frame, the right end of the latch part extends rightwards and transversely, the right end part of the latch part is detachably slipped against the lower end edge of the latch, and the right end part of the latch part is detachably slipped against the rear of the latch. In this way, the limiting plate is releasably lapped on the upper rear side of the supporting component, the latch is rotatably connected in the supporting component, when the door is closed, the second door body slides backwards with the latch component, in the sliding process, the latch component is propped against the front end of the lower end edge of the latch, the lower end edge of the latch is in a concave arc shape from back to front, in the process of propping against the lower end edge of the latch, the lower end edge of the latch is upwards extruded by the right end of the latch component, the latch gradually rotates upwards in the supporting component, the right end of the latch component gradually releases the propping against the lower end edge of the latch, the latch component slides to the rear of the latch, at the moment, the latch releases the extrusion of the latch component, the latch downwards rotates to the original state due to self gravity, and the second door body is in a closed state; when the door is opened, the limiting plate is lifted upwards manually, the limiting plate releases the lap joint with the upper rear side of the supporting component, the lock tongue rotates and slides upwards through the limiting plate, the right end part of the door latch component is released to prop against the rear of the lock tongue, the second door body slides forwards with the door latch component and finally passes over the lock tongue, at the moment, the limiting plate is loosened, the lock tongue rotates downwards to return to the original state due to self gravity, and the second door body is in an open state. Compared with the prior art, the door bolt has the advantages that: the door bolt has simple structure and wide application range, and can automatically lock the door when the door is closed without manual operation.
Drawings
Fig. 1 is a schematic view of the structure of the inventive door bolt in a closed state.
Fig. 2 is a schematic view of the structure of the inventive door bolt in a door closing process state (the movement of the locking bolt in a door closing state is consistent with that in a door opening state).
Fig. 3 is a schematic view of the structure of the movable part of the inventive door bolt.
Fig. 4 is a schematic structural view of a supporting member in the inventive keeper.
Fig. 5 is a schematic view of the structure of the latch member in the inventive keeper.
Description of the drawings
10 … support part 11 … support plate 12 … first fixing plate
13 … first bolt hole 14 … first securing hole 20 … door latch member
21 … second fixing plate 22 … latch plate 23 … second fixing hole
30 … movable part 31 … lock tongue 32 … limiting plate
33 … second bolt hole 40 … first bolt
Detailed Description
A latch according to the present invention will be described in further detail with reference to fig. 1 to 5 of the accompanying drawings.
Referring to fig. 1 to 5, the door bolt of the present invention includes a support member 10, a latch member 20 and a movable member 30, wherein the rear end portion of the support member 10 is detachably fixed on a first door body, the front end of the support member 10 extends forward horizontally, the movable member 30 includes a latch member 31 and a limiting plate 32, the rear upper end edge of the latch member 31 is in a right angle shape, the lower end edge of the latch member 31 is in a concave arc shape from back to front, the limiting plate 32 extends horizontally and is fixed on the rear upper side of the latch member 31, the limiting plate 32 is detachably overlapped on the rear upper side of the support member 10, the latch member 31 is rotatably connected in the support member 10, the left end portion of the latch member 20 is detachably fixed on a second door body or a door frame, the right end of the latch member 20 extends rightward and horizontally, the right end portion of the latch member 20 is detachably slidably abutted against the lower end edge of the latch member 31, and the right end portion of the latch member 20 is releasably abutted against the rear upper side of the latch member 31. Specifically, the limiting plate 32 is releasably lapped on the upper rear side of the supporting component 10, the latch component 31 is rotatably connected in the supporting component 10, when the door is closed, the second door body slides backwards with the latch component 20, during sliding, the latch component 20 abuts against the front end of the lower end edge of the latch component 31, the lower end edge of the latch component 31 is in a concave arc shape from back to front, during abutting against the lower end edge of the latch component 31, as shown in fig. 2, the lower end edge of the latch component 20 is pressed upwards by the right end of the latch component 20, the latch component 31 gradually rotates upwards in the supporting component 10, the right end of the latch component 20 and the lower end edge of the latch component 31 gradually release abutting, the latch component 20 slides backwards into the latch component 31, at this time, the latch component 20 is released from pressing by the latch component 31, the latch component 31 rotates downwards to the original state due to self gravity, and the second door body is in a closed state; when the door is opened, the limiting plate 32 is lifted upwards manually, the limiting plate 32 releases the lap joint with the upper rear side of the supporting part 10, the lock tongue 31 rotates and slides upwards through the limiting plate 32, the right end part of the door latch part 20 releases the lap joint with the rear side of the lock tongue 31, the second door body slides forwards with the door latch part 20 and finally passes over the lock tongue 31, at the moment, the limiting plate 32 is released, the lock tongue 31 rotates downwards to return to the original state due to self gravity, and the second door body is in an open state. The advantages compared with the prior art are that: the door bolt has simple structure and wide application range, and can automatically lock the door when the door is closed without manual operation.
The door bolt of the present invention, please refer to fig. 1 to 5, may further be based on the technical scheme described above: the support part 10 comprises a support plate 11 and a first fixing plate 12, the first fixing plate 12 is detachably fixed with the first door body, the support plate 11 is in a U shape extending horizontally backwards, the rear end of the support plate 11 is fixed on the front side of the first fixing plate 12, the left end and the right end of the first fixing plate 12 are detachably lapped on the upper sides of the rear parts of the transverse arms at the left end and the right end of the support plate 11, and the lock tongue 31 is rotatably connected in the support plate 11. In this way, the supporting plate 11 is in a shape of a U extending horizontally backwards, the lock tongue 31 is rotatably connected in the supporting plate 11, the left end and the right end of the limiting plate 32 are releasably overlapped at the rear upper sides of the left end and the right end of the supporting plate 11, when the door is closed, the second door body slides backwards with the latch part 20, in the sliding process, the latch part 20 is propped against the front end of the lower end edge of the lock tongue 31, in the process of propping against the lower end edge of the lock tongue 31, as shown in fig. 2, the lower end edge of the lock tongue 31 is extruded upwards by the right end of the latch part 20, the lock tongue 31 gradually rotates upwards in the supporting plate 11, the right end of the latch part 20 is gradually released from propping against the lower end edge of the lock tongue 31, at the moment, the lock tongue 31 releases the extrusion of the latch part 20, the lock tongue 31 downwards rotates to the original state due to self gravity, and the second door body is in the closed state; when the door is opened, the limiting plate 32 is lifted upwards manually, the left end and the right end of the limiting plate 32 are released from lap joint with the rear upper sides of the transverse arms at the left end and the right end of the supporting plate 11, the lock tongue 31 rotates and slides upwards through the limiting plate 32, the right end of the latch component 20 is released from being propped against the rear of the lock tongue 31, the second door body slides forwards with the latch component 20 and finally passes over the lock tongue 31, at the moment, the limiting plate 32 is released, the lock tongue 31 rotates downwards to return to the original state due to self gravity, and the second door body is in an open state. The further preferred technical scheme based on the technical scheme described above is: the middle parts of the left lateral arm and the right lateral arm of the supporting plate 11 are respectively provided with a first bolt 40 hole 13, the middle upper part of the lock tongue 31 is provided with a second bolt hole 33, the first bolt 40 is penetrated in the first bolt 40 hole 13 and the second bolt hole 33, and the lock tongue 31 is rotatably connected between the left lateral arm and the right lateral arm of the supporting plate 11 through the first bolt 40. In this way, the first bolt 40 is inserted into the first bolt 40 hole 13 and the second bolt hole 33, the lock tongue 31 is rotatably connected between the left and right lateral arms of the support plate 11 through the first bolt 40, the lock tongue 31 rotates with the second bolt hole 33 as the rotation center, when the door is closed, the lower end edge of the lock tongue 31 is pressed upwards by the right end of the latch component 20, the lock tongue 31 gradually rotates upwards in the support plate 11 with the second bolt hole 33 as the rotation center, when the door is opened, the limit plate 32 is manually lifted upwards, and the lock tongue 31 rotates upwards with the second bolt hole 33 as the rotation center through the limit plate 32. Based on the technical scheme, the method can also be as follows: the upper and lower ends of the first fixing plate 12 are respectively provided with a first fixing hole 14 in the middle, and the second bolts penetrate through the corresponding first fixing holes 14 and are detachably fixed with the first door body. Thus, the first fixing holes 14 are respectively arranged in the middle of the upper end and the lower end of the first fixing plate 12, and the first fixing holes 14 and the first door body are detachably fixed through the second bolts and the corresponding first fixing holes, so that the first fixing plate 12 and the first door body can be conveniently installed and detached.
The door bolt of the present invention, please refer to fig. 1 to 5, may further be based on the technical scheme described above: the latch assembly comprises a second fixing plate 21 and a latch plate 22, wherein the second fixing plate 21 is detachably fixed on a second door body, the left end part of the latch plate 22 is fixed on the outer side of the second fixing plate 21, the right end of the latch plate 22 extends right vertically and transversely, the right end part of the latch plate 22 is in releasable sliding connection with the edge of the lower end of the lock tongue 31, and the right end part of the latch plate 22 abuts against the rear of the lock tongue 31. When the door is closed, the second door body slides backwards with the latch plate 22, in the sliding process, the upper edge of the right end part of the latch plate 22 abuts against the front end of the lower end edge of the latch plate 31, the lower end edge of the latch plate 31 is arc-shaped, in the abutting process with the lower end edge of the latch plate 31, as shown in fig. 2, the lower end edge of the latch plate 31 is extruded upwards by the upper edge of the right end part of the latch plate 22, the latch plate 31 gradually rotates upwards in the supporting part 10, the upper edge of the right end part of the latch plate 22 gradually releases the abutting with the lower end edge of the latch plate 31, the latch plate 22 slides to enter the rear of the latch plate 31, at the moment, the extrusion of the latch plate 22 is released by the latch plate 31, the latch plate 31 downwards rotates to return to the original state due to self gravity, and the second door body is in the closed state; when the door is opened, the limiting plate 32 is manually lifted up by rotating upwards, the limiting plate 32 releases the lap joint with the upper rear side of the supporting part 10, the lock tongue 31 rotates and slides forwards through the limiting plate 32, the right end part of the latch plate 22 releases the butt against the rear of the lock tongue 31, the second door body slides forwards with the latch plate 22 and finally passes over the lock tongue 31, at the moment, the limiting plate 32 is released, the lock tongue 31 rotates downwards to return to the original state due to self gravity, and the second door body is in an open state. The further preferred technical scheme based on the technical scheme described above is: second fixing holes 23 are respectively formed in the middle of the upper end and the lower end of the second fixing plate 21, and third bolts penetrate through the corresponding second fixing holes 23 and are detachably fixed with the second door body. Like this, be equipped with second fixed orifices 23 respectively in the middle of the upper and lower both ends of second fixed plate 21, can dismantle fixedly through third bolt and corresponding second fixed orifices 23 and second door body, make things convenient for the installation and the dismantlement of second fixed plate 21 and second door body.
The foregoing description of the embodiments of the present invention should not be taken as limiting the scope of the invention, but rather should be construed in view of the following detailed description.
Claims (3)
1. A door bolt, characterized in that: the door latch comprises a supporting part (10), a door latch part (20) and a movable part (30), wherein the rear end part of the supporting part (10) is detachably fixed on a first door body, the front end of the supporting part (10) horizontally extends forwards, the movable part (30) comprises a lock tongue (31) and a limiting plate (32), the rear upper end edge of the lock tongue (31) is in a right angle shape, the lower end edge of the lock tongue (31) is in an arc shape which is downwards concave from back to front, the limiting plate (32) horizontally extends and is fixed on the rear upper side of the lock tongue (31), the limiting plate (32) is detachably lapped on the rear upper side of the supporting part (10), the lock tongue (31) is rotatably connected in the supporting part (10), the left end part of the door latch part (20) is detachably fixed on a second door body or a door frame, the right end of the door latch part (20) horizontally extends rightwards, the right end part of the door latch part (20) is detachably slipped against the lower end edge of the lock tongue (31) in a releasable manner, and the right end part (20) is detachably slipped against the rear upper side of the lock tongue (31) in a releasable manner
The support component (10) comprises a support plate (11) and a first fixing plate (12), the first fixing plate (12) is detachably fixed with the first door body, the support plate (11) is in a U shape extending backwards and horizontally, the rear end part of the support plate (11) is fixed on the front side of the first fixing plate (12), the left end and the right end of the first fixing plate (12) are detachably lapped on the upper sides of the rear parts of the transverse arms at the left end and the right end of the support plate (11), and the lock tongue (31) is rotatably connected in the support plate (11);
the middle parts of the left transverse arm and the right transverse arm of the supporting plate (11) are respectively provided with a first bolt hole (13), the middle upper part of the lock tongue (31) is provided with a second bolt hole (33), a first bolt (40) penetrates through the first bolt hole (13) and the second bolt hole (33), and the lock tongue (31) is rotatably connected between the left transverse arm and the right transverse arm of the supporting plate (11) through the first bolt (40);
the middle of the upper end and the lower end of the first fixed plate (12) is respectively provided with a first fixed hole (14), and the second bolt is penetrated in the corresponding first fixed hole (14) and is detachably fixed with the first door body.
2. A door bolt according to claim 1, wherein: the door latch component comprises a second fixing plate (21) and a latch plate (22), wherein the second fixing plate (21) is detachably fixed on a second door body, the left end part of the latch plate (22) is fixed on the outer side of the second fixing plate (21), the right end of the latch plate (22) extends right vertically and transversely, the upper edge of the right end part of the latch plate (22) is connected with the edge of the lower end of the lock tongue (31) in a releasable sliding mode, and the right end part of the latch plate (22) abuts against the rear of the lock tongue (31).
3. A door bolt according to claim 2, wherein: and second fixing holes (23) are respectively formed in the middle of the upper end and the lower end of the second fixing plate (21), and third bolts penetrate through the corresponding second fixing holes (23) and are detachably fixed with the second door body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186816.0A CN110242135B (en) | 2019-03-13 | 2019-03-13 | Door bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186816.0A CN110242135B (en) | 2019-03-13 | 2019-03-13 | Door bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242135A CN110242135A (en) | 2019-09-17 |
| CN110242135B true CN110242135B (en) | 2024-02-20 |
Family
ID=67883096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910186816.0A Active CN110242135B (en) | 2019-03-13 | 2019-03-13 | Door bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110242135B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106328Y (en) * | 2007-10-26 | 2008-08-27 | 宁波永发集团有限公司 | Inverse hook type latch structure |
| WO2011143687A1 (en) * | 2010-05-21 | 2011-11-24 | Steel Storage Holdings Pty Ltd | Door latch assembly |
| KR101315492B1 (en) * | 2012-07-18 | 2013-10-07 | 동우정밀(주) | Door latch apparatus |
| CN207436749U (en) * | 2017-10-31 | 2018-06-01 | 牧原食品股份有限公司 | Novel pig house gives up door special door lock |
| CN208441668U (en) * | 2018-05-30 | 2019-01-29 | 杭州老板电器股份有限公司 | Lockset and household electrical appliance |
| CN109306826A (en) * | 2017-12-20 | 2019-02-05 | 诺电器有限公司 | The door lock mortise lock for preventing keeper locked |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209924691U (en) * | 2019-03-13 | 2020-01-10 | 国家电网有限公司 | Door bolt |
-
2019
- 2019-03-13 CN CN201910186816.0A patent/CN110242135B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106328Y (en) * | 2007-10-26 | 2008-08-27 | 宁波永发集团有限公司 | Inverse hook type latch structure |
| WO2011143687A1 (en) * | 2010-05-21 | 2011-11-24 | Steel Storage Holdings Pty Ltd | Door latch assembly |
| KR101315492B1 (en) * | 2012-07-18 | 2013-10-07 | 동우정밀(주) | Door latch apparatus |
| CN207436749U (en) * | 2017-10-31 | 2018-06-01 | 牧原食品股份有限公司 | Novel pig house gives up door special door lock |
| CN109306826A (en) * | 2017-12-20 | 2019-02-05 | 诺电器有限公司 | The door lock mortise lock for preventing keeper locked |
| CN208441668U (en) * | 2018-05-30 | 2019-01-29 | 杭州老板电器股份有限公司 | Lockset and household electrical appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110242135A (en) | 2019-09-17 |
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