CN201486268U - Door lock structure for preventing pressure clamp - Google Patents
Door lock structure for preventing pressure clamp Download PDFInfo
- Publication number
- CN201486268U CN201486268U CN2009202081046U CN200920208104U CN201486268U CN 201486268 U CN201486268 U CN 201486268U CN 2009202081046 U CN2009202081046 U CN 2009202081046U CN 200920208104 U CN200920208104 U CN 200920208104U CN 201486268 U CN201486268 U CN 201486268U
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- CN
- China
- Prior art keywords
- push rod
- steel ball
- brake block
- seaming
- door latch
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- 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 relates to a door lock structure which can be unlocked under the prepressing state. The door lock structure for preventing pressure clamp comprises a rotary latch (1) on which a tip seam (1a) is protruded; the latch seam (1a) is provided with a crown bar (2) coaxial with a rotary shaft of the latch (1); the crown bar (2) is inserted in a sliding sleeve; the bar wall of the crown bar (2) is provided with a spherical recess (2b); a circular hole is arranged on the position corresponding to the sliding sleeve; a steel ball (3) is placed in the circular hole; a rotatable brake block (9) is arranged at the outer side of the steel ball (3); a prominence surface (9a) of the brake block (9) supports against the steel ball (3); a cavity (9b) capable of receiving the steel ball (3) is arranged at the lateral part of the prominence surface (9a); and a vertical rotary shaft (8) on the brake block (9) is provided with a latch push rod (6) mechanism connected with a driving handle (9c). In the technical scheme, the door under the prestressing state can be opened by moving the crown bar (2) with little push or pull force. The utility model provides a safe and reliable door lock mechanism.
Description
(1) technical field
The utility model is a kind of door latch structure, particularly relates to a kind of door latch structure that still can normally open under the preloading state.
(2) background technology
As everyone knows, door lock is cooperated with backset by snap close and constitutes, and snap close is one to have the long piece of rotation of seaming, and backset is one section cylindrical bar, half of cylindrical bar is breach, half is the face of cylinder, and when the seaming of snap close is positioned at indentation, there, snap close can rotarily open door leaf, be positioned at the seaming place of snap close when the face of cylinder of stopper, the seaming of snap close is stopped that by the face of cylinder snap close can't rotate, and door leaf can't be opened.
Described backset is one section cylindrical bar, half is a breach, half is the face of cylinder, cylindrical bar is that front-rear reciprocation movement makes the breach of backset promote to move to snap close seaming bottom when needs open the door vertically, when needs close latching door, promotes backset and moves, make the face of cylinder section of backset be positioned at the seaming bottom of snap close, moving axially by electromagnetic solenoid control of backset, when the electromagnetic coil energising or the outage generation magnetic flux of electromagnetic solenoid, the electromagnet in the middle of ordering about moves back and forth.
It more than is the situation in normal condition is used.
Yet; in abnormal condition; under the state of emergency; such as situations such as the condition of a fire occurring; people can go out to run in a panic to outdoor forcing the way to from indoor; can push with strength on unwisely ground; apply super large pressure on the opposite house, this moment, door leaf was subjected to big unexpected pushing force at a time when the face of cylinder section of backset is positioned at the seaming bottom of snap close; the seaming port " is bitten " face of cylinder of backset inflexibly; push away more that " sting " on the contrary must be tight more, at this moment, even electromagnetic solenoid is connected; in in electromagnet move and want to drive backset and move also powerless; the electromagnetic force that electromagnet produces " is bitten " power on the backset face of cylinder much smaller than the snap close seaming, can't open lockset at all, can't open door leaf at all; bigger accident takes place this moment easily; cause bigger injures and deaths, therefore, must provide the door latch structure that uses under a kind of state of emergency device; so that escape, the protection lives and properties.
Similar above fortuitous event also has extraneous blast excessive, " has bitten " face of cylinder of backset and also can cause door not open; Door is owing to make moist and can be out of shape or the like, and this type of occasion was before normally opening door lock and has been subjected to abnormal precompression, has been difficult to open door lock with normal means again, and at this moment, needing to provide a kind of counter-measure and mechanism, still can open the mechanism of door lock.
(3) summary of the invention
The purpose of this utility model provides at door and is subjected to a kind of door lock mechanism that can be opened smoothly under the situation of precompression.
The purpose of this utility model is solved by following technical scheme:
The stuck door latch structure of a kind of anti-precompression comprises being revolving snap close, and sharp mouth seaming of snap close upper process is characterized in that:
Push rod with the snap close rotating shaft coaxle is set at described snap close seaming place, and push rod inserts in the sliding sleeve, and the push rod exposed junction is a raised face, and raised face is withheld mutually with the seaming of rotating latch;
The bar wall of push rod is offered a spherical notch, described recess is positioned at push rod and inserts the sliding sleeve part, and offers a circular hole in the corresponding position of sliding sleeve, places a steel ball in the circular hole, and can head in the recess of push rod bar wall, at the arranged outside one rotating brake block of steel ball;
Described brake block is installed on the axis of rotation, and brake block one raised face (RF) props up steel ball, offers a cavity that can hold steel ball at the sidepiece of raised face (RF), contains on the brake block to make raised face (RF) prop up the resetting-mechanism of steel ball;
Vertical rotating shaft is provided with driving handle on brake block, and driving handle is connected with the lockset push-pull mechanism;
Described sliding sleeve bottom is provided with ejector spring.
Adopt the technical program, when door-plate cut out, push rod was ejected to the snap close direction by the spring of sliding sleeve bottom, and push rod exposes raised face (RF) to be withheld mutually with the seaming of rotating latch; Brake block is resetted by resetting-mechanism to make the raised face (RF) of brake block to prop up steel ball and embeds circular hole on the sliding sleeve, and the spherical shrinkage pool on the inner push rod of sliding sleeve, steel ball can't withdraw from, push rod can't be moved in sliding sleeve by the constraint of steel ball, make that the raised face (RF) that exposes of push rod is awkwardly withheld below the seaming of rotating latch and cannot moved, no matter almost can't push open, can't open door leaf with much extra strength.
When door is desired to open, the unlatching of lockset, the push-pull mechanism of closing promote the driving handle on the brake block, only need promotion gently, brake block rotates around axis of rotation, withdraws from the spherical shrinkage pool of steel ball from push rod, fall in the cavity of brake block raised face (RF) sidepiece, push rod is former to be subjected to the steel ball constraint to be disengaged and can to have moved in sliding sleeve, promotes door leaf lightly, the seaming rotation of rotating latch, the promotion push rod exposes raised face (RF) and moves to the sliding sleeve direction, and door is opened.
After every opened, rotating latch was by recovering the origin-location again under the effect of torsion spring, and push rod is outwards shifted out again by the tail springs effect.
Further, described push rod exposed junction is a hemisphere face, withholds mutually with the seaming of rotating latch with the size less than radius.
Further, described push rod exposed junction is a taper seat, withholds mutually with the seaming of rotating latch with the taper seat of coning angle 90 to 120 degree.
Further, described push rod exposed junction is placed a steel ball, and steel ball is withheld with the seaming of rotating latch mutually with the size less than radius.
Further, described brake block is the anchor shape, and centrosymmetric lower position is an axis of rotation, and the upper lobes end is a raised face (RF), and left and right sides symmetry is offered two cavitys that can hold steel ball.
Further, described brake block with configuration torsion spring on the axis of rotation or at the sidepiece of axis of rotation with spring or extension spring as resetting-mechanism.
Further, the iron core in the described electromagnetic solenoid connects described lockset push rod.
Further again, the iron core in the described electromagnetic solenoid connects the lockset push rod, as the resetting-mechanism of brake block.
Further, the bar wall of described push rod is offered a circle ball recess.
The beneficial effects of the utility model, adopt the technical program to solve door under the preloading state, under the state of emergency, people unwiselyly promptly push, can not occur of the prior art stuck again, kill, the disadvantage that pushes away tighter and tighter, and only need one to push away or pulling force, shake the driving handle on the brake block, driving handle is shaking, do not need to overcome big resistance on the rotation direction, only make the brake block rolling leave the ball in the periphery outside of raised face (RF), therefore required strength is very little, thus, ball drops no longer to retrain and places restrictions on moving of push rod, even make to be subjected to preloading condition, under other lockset was stuck the state that can't open, the utility model can easily be opened, do not go out anything unexpected, guarantee the safety exit of indoor occupant under the state of emergency, have never again, be included under the state of other preloading and all can open smoothly because of lock structure has caused the unexpected accident of life.Therefore, be a fool proof reliable door lock mechanism.
(4) description of drawings
Fig. 1 is a kind of embodiment structure chart of the door latch structure that the anti-precompression of the utility model is stuck, and push rod is pushed out, and spherical notch is embedded by the steel ball of sliding sleeve circular hole on the push rod wall, and the outside of steel ball is compressed by brake block again can't to move, be the state of locking a door;
Fig. 2 is door opening state figure for Fig. 1, and the driving handle of brake block is subjected to door lock start signal control push rod to promote rotation, and steel ball falls and rolls into the cavity of twitching piece, and the constraint that push rod loses steel ball is promoted, moves by the component of snap close motive force side direction, and door is opened;
Fig. 3 is among Fig. 1, and the bar wall of push rod is offered a spherical notch to substitute the structural representation of offering a circle ball recess at the bar wall of push rod;
Fig. 4 is a kind of embodiment of the stuck door latch structure of the anti-precompression of the utility model,, the stereogram of critical piece;
Fig. 5 is the stereogram of rotating latch parts;
Fig. 6 is the stereogram of prior art cylindrical shape backset, has shown the face of cylinder part of backset and two parts of barbed portion, and backset is moving axially, and is positioned at when face of cylinder part under the seaming of snap close, and snap close can't rotate, and door can't be opened; When backset moves axially, barbed portion is positioned under the seaming of snap close, and door can be opened;
Fig. 7 is that rotating latch cooperates with backset, the cross sectional representation of backset; Institute's diagrammatic sketch is that barbed portion is positioned at state under the snap close seaming;
Fig. 8 is that backset moves to the face of cylinder and is positioned at view under the snap close seaming among Fig. 7.
Among the figure, the 1st, snap close, 1a are seamings, 1b is a rotating hole, the 2nd, push rod, 2a are steel balls, and 2b is a groove, and 2b ' is a recess, the 3rd, steel ball, the 4th, ejector spring, the 5th, sleeve base, the 6th, lockset push rod, the 7th, back-moving spring, the 8th, axis of rotation, the 9th, brake block, 9a is a raised face (RF), and 9b is a cavity, and 9c is a driving handle, the 10th, backset, 10a is a cylindrical bar, 10b is a breach.
(5) specific implementation method
Further describe structure of the present utility model below in conjunction with accompanying drawing.
The stuck door latch structure of a kind of anti-precompression comprises being revolving snap close 1, sharp mouth seaming 1a of snap close 1 upper process,
Push rod 2 with snap close 1 rotating shaft coaxle is set at snap close seaming 1a place, and push rod 2 inserts in the sliding sleeves, and push rod 2 exposed junctions are raised face, and raised face is withheld mutually with the seaming 1a of rotating latch 1;
The bar wall of push rod 2 is offered a spherical notch 2b, described recess 2b ' is positioned at push rod 2 and inserts the sliding sleeve part, and offer a circular hole in the corresponding position of sliding sleeve, place a steel ball 3 in the circular hole, and can head among the recess 2b ' of push rod 2 bar walls, at the arranged outside one rotating brake block 9 of steel ball 3;
Vertical rotating shaft 8 is provided with driving handle 9c on brake block 9, and driving handle 9c is connected with lockset push rod 6 mechanisms;
The sliding sleeve bottom is provided with ejector spring 4, and push rod 2 is promptly ejected to the snap close direction by outside.
Described push rod 2 exposed junctions are taper seat, withhold mutually with the seaming 1a of rotating latch 1 with the taper seat of coning angle 90 to 120 degree.When push rod afterbody constraint release, the seaming 1a of snap close 1 presses taper seat, and in the coning angle scope of 90 to 120 degree, push rod can be pushed out by its component and open the door vertically.
The bar wall of push rod 2 is offered a circle ball recess 2b.Improve reliability for the ease of processing with in using, the bar wall of push rod 2 is offered a circle ball recess 2b to replace offering a spherical notch 2b ' at the bar wall of push rod 2.
Even the technical program under door preloading state, only needs door lock that very little pushes away or pulling force is just realized moving of push rod 2 is provided, door is a fool proof reliable door lock mechanism by smooth opening.
Claims (9)
1. the door latch structure that anti-precompression is stuck comprises being revolving snap close (1), and snap close (a 1) sharp mouth seaming of upper process (1a) is characterized in that:
Locate to be provided with a push rod (2) with snap close (1) rotating shaft coaxle at described snap close seaming (1a), push rod (2) inserts in the sliding sleeve, and push rod (2) exposed junction is a raised face, and raised face is withheld mutually with the seaming (1a) of rotating latch (1);
The bar wall of push rod (2) is offered a spherical notch (2b '), described recess (2b ') is positioned at push rod (2) and inserts the sliding sleeve part, and offer a circular hole in the corresponding position of sliding sleeve, place a steel ball (3) in the circular hole, and can head in the recess (2b ') of push rod (2) bar wall, at the arranged outside one rotating brake block (9) of steel ball (3);
Described brake block (9) is installed on the axis of rotation (8), brake block (9) one raised face (RF)s (9a) prop up steel ball (3), offer one at the sidepiece of raised face (RF) (9a) and can hold the cavity (9b) of steel ball (3), contain on the brake block (9) and make raised face (RF) prop up the resetting-mechanism of steel ball;
Go up vertical rotating shaft (8) at brake block (9) driving handle (9c) is set, driving handle (9c) is connected with lockset push rod (6) mechanism;
Described sliding sleeve bottom is provided with ejector spring (4).
2. according to the described door latch structure of claim 1, it is characterized in that described push rod (2) exposed junction is a hemisphere face, withhold mutually with the seaming (1a) of rotating latch (1) with size less than radius.
3. according to the described door latch structure of claim 1, it is characterized in that described push rod (2) exposed junction is a taper seat, withhold mutually with the seaming (1a) of rotating latch (1) with the taper seat of coning angle 90 to 120 degree.
4. according to the described door latch structure of claim 1, it is characterized in that described push rod (2) exposed junction places a steel ball (2a), steel ball (2a) is withheld with the seaming (1a) of rotating latch (1) mutually with the size less than radius.
5. according to the described door latch structure of claim 1, it is characterized in that described brake block (9) is the anchor shape, centrosymmetric lower position is axis of rotation (8), and the upper lobes end is raised face (RF) (9a), and left and right sides symmetry offers two can hold the cavity (9b) of steel ball (3).
6. according to the described door latch structure of claim 1, it is characterized in that described brake block (9) is gone up the configuration torsion spring with axis of rotation (8) or at the sidepiece of axis of rotation (8) with spring or extension spring (7) as resetting-mechanism.
7. according to the described door latch structure of claim 1, it is characterized in that the iron core in the electromagnetic solenoid connects described lockset push rod (6).
8. according to the described door latch structure of claim 7, it is characterized in that the iron core in the described electromagnetic solenoid connects lockset push rod (6), as the resetting-mechanism of brake block (9).
9. according to the described door latch structure of claim 1, it is characterized in that the bar wall of described push rod (2) is offered a circle ball recess (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202081046U CN201486268U (en) | 2009-08-19 | 2009-08-19 | Door lock structure for preventing pressure clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202081046U CN201486268U (en) | 2009-08-19 | 2009-08-19 | Door lock structure for preventing pressure clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486268U true CN201486268U (en) | 2010-05-26 |
Family
ID=42425152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202081046U Expired - Fee Related CN201486268U (en) | 2009-08-19 | 2009-08-19 | Door lock structure for preventing pressure clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624886B (en) * | 2009-08-19 | 2011-09-14 | 上海欧一安保器材有限公司 | Door lock structure capable of being opened in prepressing state of door |
| CN113511302A (en) * | 2021-08-16 | 2021-10-19 | 陈成东 | Efficient marine emergency chain abandoning device |
| CN114310619A (en) * | 2022-03-15 | 2022-04-12 | 沈阳铁路信号有限责任公司 | Automatic grinding machine for relay power supply piece |
-
2009
- 2009-08-19 CN CN2009202081046U patent/CN201486268U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624886B (en) * | 2009-08-19 | 2011-09-14 | 上海欧一安保器材有限公司 | Door lock structure capable of being opened in prepressing state of door |
| CN113511302A (en) * | 2021-08-16 | 2021-10-19 | 陈成东 | Efficient marine emergency chain abandoning device |
| CN113511302B (en) * | 2021-08-16 | 2022-08-16 | 武汉江南锚链有限公司 | Efficient marine emergency chain abandoning device |
| CN114310619A (en) * | 2022-03-15 | 2022-04-12 | 沈阳铁路信号有限责任公司 | Automatic grinding machine for relay power supply piece |
| CN114310619B (en) * | 2022-03-15 | 2022-05-13 | 沈阳铁路信号有限责任公司 | Automatic grinding machine for relay power supply piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120819 |