CN111877865A - Mute lock for door - Google Patents
Mute lock for door Download PDFInfo
- Publication number
- CN111877865A CN111877865A CN202010495101.6A CN202010495101A CN111877865A CN 111877865 A CN111877865 A CN 111877865A CN 202010495101 A CN202010495101 A CN 202010495101A CN 111877865 A CN111877865 A CN 111877865A
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- door
- lock
- rod
- contact
- output
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- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
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Classifications
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- 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
- E05B15/0006—Devices for aligning wing and frame; Anti-rattling devices
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- Lock And Its Accessories (AREA)
Abstract
The invention discloses a silent lock for a door, which comprises a push rod, a locking mechanism arranged on one side of the door, which is far away from a hinge, and a transmission mechanism arranged on one side of a door frame, which is close to the hinge, wherein the locking mechanism comprises a lock tongue; when the door is closed, the contact is contracted in the door frame and the output head is protruded out of the door frame. The invention has the following beneficial effects: the contraction of the lock tongue is controlled in advance, so that the collision between the lock tongue and the door frame is avoided, and the noise generated by the collision is eliminated; the door is locked while the door is closed, so that redundant locking action is avoided; the spherical contact and the output head reduce the requirement on precision and reduce the probability of generating noise; the pure mechanical structure has high reliability, simple structure and convenient installation.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a silent lock for a door.
Background
When the door is in an open state, the lock bolt of the door lock usually protrudes out of the door, when the door is closed, the lock bolt usually collides with the door frame firstly, the door is contracted under the action of the door frame and then popped out to lock the door, and the collision of the lock bolt and the door frame can bring great noise, so that a plurality of silent door locks appear in the market. The existing mute door lock is usually realized by magnet or electromagnet adsorption, and the magnet adsorption force is reduced or even disappears in the long term, so that the mute function of the door lock is disabled; some mechanical silent door locks usually use damping materials to reduce noise, and after the materials are aged, the functions of the mechanical silent door locks gradually lose efficacy; in addition, a part of mechanical silent door locks only improve the door lock structure arranged on the door leaf, and the collision between the lock tongue and the door frame is replaced by other structures to recover the lock tongue, so that the noise generated by the collision between the lock body and the door frame cannot be changed substantially, and the door locks are usually complex in structure or need to be additionally provided with redundant operations to achieve the purpose of muting, so that the actual muting effect is poor.
For example, a "silent door lock body" disclosed in chinese patent literature, which is disclosed under the publication No. CN105464471B, includes a lock frame, a latch rod connected to the latch, and a lock linkage linked to the latch rod, wherein a lock cord connected to the lock frame is provided on the latch rod and/or the lock linkage, a rotatable contact block is provided below the latch, a horizontally retractable contact push rod is provided at the right end of the contact block, a contact linkage block capable of ascending and descending up and down is provided at the right end of the contact push rod, a contact control block capable of driving the contact linkage block is provided on the latch rod, wherein mutually corresponding inclined planes are provided between the contact push rod and the contact linkage block, mutually corresponding inclined planes are provided between the contact linkage block and the contact control block, and springs are respectively sleeved on the contact push rod and the contact linkage block. The contact block is arranged to replace the bolt to contact with the doorframe so as to withdraw the bolt, and the invention has the defects that even if the bolt is not in direct contact with the doorframe to generate noise, the contact block still collides with the doorframe, the collision direction is vertical to the plane of the contact block, the collision noise is unavoidable and even larger, and the actual silencing effect is not good.
Disclosure of Invention
The invention aims to solve the problems of easy failure of a mute function, complex structure, inconvenient operation and poor mute effect in the prior art, and provides the mute lock for the door, which has simple structure, simple and convenient locking operation, good reliability and avoids the noise generated by the collision of a lock tongue and a door frame when the door is closed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a silent lock for a door comprises a push rod, a locking mechanism arranged on one side, far away from a hinge, of the door and a transmission mechanism arranged on one side, close to the hinge, of a door frame, wherein the locking mechanism comprises a lock tongue; when the door is closed, the contact is contracted in the door frame and the output head is protruded out of the door frame.
The invention is characterized in that one side of the door frame close to the hinge is provided with a contact and an output head, the contact and the output head are matched with the push rod to control the spring bolt, when the door is opened, the spring bolt is contracted in the door, when the door is closed, the spring bolt can not impact the door frame to generate noise, at the moment, the contact is protruded out of the door frame, and the output head is contracted in the door frame; the output head is pushed outwards by linkage at the moment, and pushes the push rod to move towards the direction of the lock tongue so as to drive the lock tongue to extend out of the door to realize locking; when the door is opened, the lock tongue is withdrawn through external force, the locking state is removed, the door can be opened, the push rod is withdrawn at the moment, the output rod is pushed to be withdrawn, and the contact is subjected to linkage and protrudes out of the door frame.
Preferably, the transmission mechanism further comprises a resistance block and a thrust rod, the contact is matched with the inclined surface of the resistance block, the resistance block is matched with the inclined surface of the thrust rod, the resistance block and the thrust rod are both elastically connected with the door frame, the thrust rod is linked with the output head through a lever mechanism, and the movement directions of the thrust rod and the output head are opposite.
When the contact is pushed into the door frame, the resistance block moves through the cooperation of the inclined surfaces, the resistance block is separated from the thrust rod, the thrust rod moves towards the inside of the door frame under the action of elastic force, and the output head moves towards the outside of the door frame under the action of linkage of the lever mechanism; when the output head is pushed to the inside of the door frame to move, the thrust rod is linked by the lever mechanism to move towards the outside of the door frame, and if the door is opened at the moment, the resistance block rebounds to match with the inclined surface of the thrust rod to lock the thrust rod and push the contact head to extend out of the door frame.
Preferably, the thrust rod is provided with a wedge-shaped groove, and the resistance block is matched with the inclined surface of the wedge-shaped groove.
The resistance block locks the movement of the thrust rod by being inserted into the wedge-shaped groove, and the structure is compact in arrangement and high in space utilization rate.
Preferably, the transmission mechanism further comprises a transmission rod, an output rod and a support sleeve, the thrust rod and the output rod are movably connected with two ends of the transmission rod respectively, the transmission rod is movably arranged in the support sleeve, and an output head is arranged at the outer side end of the output rod.
Through setting up the lever mechanism that transmission pole and support cover formed, the quick change atress direction changes the outside removal that the thrust bar inwards removed and changes into the output pole through the transmission pole, simple structure, and good reliability, output pole and thrust bar inboard are equipped with the movable groove, and the extension of transmission pole both ends to the movable groove and rather than swing joint, transmission pole both ends also can rotate with output pole and thrust bar respectively and be connected.
Preferably, the door lock further comprises a lock box arranged in the door frame, the transmission mechanism is arranged in the lock box, and the contact and the output head are arranged in the lock box in a sliding mode.
When the lock box is installed, the whole lock box is installed on the inner machine shell of the door frame to complete the installation of the transmission mechanism.
Preferably, the contact is provided with a limiting boss, the lock box is provided with a contact retainer ring, and the contact retainer ring is provided with a through hole for the end part of the contact, which is close to one side of the door, to pass through.
The limit of the limit boss is limited through the contact check ring, the moving range of the limit boss is limited, and the contact is guaranteed not to be completely separated from the lock box.
Preferably, the lock box is provided with an output head retainer ring, and the output head retainer ring is provided with a through hole for the end part of the output head close to the door to pass through.
Carry on spacingly through output head retaining ring to output head, guarantee that output head can not deviate from the lock case completely, the output rod diameter is greater than output head diameter in the embodiment, and output head retaining ring is through spacing the realization to output head to output rod spacing.
Preferably, the door is provided with a slide groove penetrating the door in the width direction, and the push rod is slidably provided in the slide groove.
The push rod is completely arranged in the door, the external structure of the door is not influenced, and the installation is convenient.
Preferably, the locking mechanism further comprises a lock cylinder and a toggle block, the toggle block is arranged at the inner end part of the lock cylinder, and the lock tongue is provided with a toggle piece abutted against the toggle block.
When the door is closed, the key is inserted into the lock cylinder and rotates, the poking block rotates for a certain angle, and the lock tongue is retracted by pushing the poking piece, so that locking is released.
Preferably, the ends of the contact and the output head are convex spherical surfaces.
The spherical contact and the output head ensure that the contact and the side edge of the door and the push rod are in point contact respectively, the requirement on precision is reduced, and the probability of generating noise is reduced.
Therefore, the invention has the following beneficial effects: (1) the collision between the lock tongue and the door frame is avoided by controlling the contraction of the lock tongue in advance, and the noise generated by the collision is eliminated; (2) the transmission mechanism is arranged on the door frame, the relative position of the door and the door frame is utilized to control the extension of the lock tongue, the door is locked while the door is closed, and redundant locking action is avoided; (3) the thrust rod is limited by arranging a resistance block to be matched with the inclined surface of the thrust rod; (4) the moving direction is simply and quickly switched by arranging the transmission rod of the lever mechanism; (5) the spherical contact and the output head reduce the requirement on precision and reduce the probability of generating noise; (6) the pure mechanical structure has high reliability, simple structure and convenient installation.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
Fig. 3 is a schematic view of a structure of the present invention when the door is closed.
Fig. 4 is a schematic view of a structure of the present invention when the door is opened.
In the figure: 1. the locking mechanism comprises a locking mechanism 11, a lock tongue, 111, a toggle piece, 12, a lock core, 121, an unequal height shaft, 122, a spring seat, 123, a pressure spring set, 13, a toggle block, 14, a lock sleeve, 15, a lock tongue spring, 16, a cover plate, 2, a push rod, 3, a transmission mechanism, 31, a contact, 32, an output head, 33, a resistance block, 331, a first spring, 34, a thrust rod, 341, a wedge-shaped groove, 342, a second spring, 343, a movable groove, 35, a transmission rod, 36, an output rod, 37, a support sleeve, 4, a lock box, 41, a contact retainer, 42, an output retainer, 43, a plug, 5, a door frame, 6 and a door leaf.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
In the embodiment shown in fig. 1 and 2, the silent lock for the door comprises a push rod 2, a locking mechanism 1 arranged on the side of the door far away from a hinge, a transmission mechanism 3 arranged on the side of a door frame 5 close to the hinge, and a lock box 4. As shown in fig. 1, the transmission mechanism 3 includes a contact 31, an output head 32, a resistance block 33, a thrust rod 34, a transmission rod 35, an output rod 36, and a support sleeve 37. As shown in fig. 3, a contact 31, an output head 32, a thrust rod 34 and an output rod 36 are slidably connected in the lock box 4 parallel to the width direction of the door frame, and a resistance block 33 is slidably connected with the lock box 4 perpendicular to the sliding direction of the contact 31, wherein the contact 31 comprises a cylinder at the right end and a limit boss at the left end, the diameter of the limit boss is larger than that of the cylinder, the right end of the cylinder is a convex spherical surface, a contact retainer ring 41 is fixed at the right side of the lock box 4, a through hole for the cylinder at the right end of the contact to pass through is formed in the contact retainer ring 41, and the; the left end of the contact 31 is matched with the inclined surface at the upper end of the resistance block 33, and the lower end of the resistance block 33 is connected with the lock box 4 through a first spring 331; a cylindrical thrust rod 34 is arranged above the contact 31, the right end of the thrust rod 34 is fixed with a plug 43 through a second spring 342, the plug 43 is fixed on the right side of the lock box 4, a wedge-shaped groove 341 matched with the resistance block 33 is formed in the thrust rod 34, and a movable groove 343 is formed in the left end of the thrust rod 34; a cylindrical output rod 36 is arranged below the first spring 331, a movable groove is formed in the left end of the output rod 36, a cylindrical output head 32 with the diameter smaller than that of the output rod is fixed at the right end of the output rod 36, the right end of the output head 32 is a convex spherical surface, an output head retainer ring 42 is fixed on the right side of the lock box, and a through hole for the output head 32 to pass through is formed in the output head retainer ring 42; a supporting sleeve 37 is fixed in the middle of the left side in the lock box 4, a through hole with the diameter larger than that of the transmission rod 35 is formed in the middle of the supporting sleeve 37, the transmission rod 35 is C-shaped, two ends of the transmission rod 35 are respectively inserted into movable grooves in the thrust rod 34 and the output rod 36, and the transmission rod 35 is movably arranged in the supporting sleeve 37.
As shown in fig. 1, the locking mechanism 1 includes a latch 11, a lock cylinder 12, a tumbler 13, a lock sleeve 14, and a cover plate 16. Wherein, lock core 12 is prior art, be equipped with a plurality of not high axles 121 on the lock core 12, not high axle 121 passes through spring housing 122 and is connected with pressure spring group 123, lock core 12 rotates and sets up in axle sleeve 14, lock core 12 inboard is connected with stirring piece 13, stir 13 tops of piece and the setting at the stirring piece 111 butt of spring bolt 11 left end, the cover is equipped with spring 15 that involves on the spring bolt 11, 15 left ends butts of spring bolt spring are on stirring piece 111, spring bolt spring 15 right-hand member is connected with apron 16, be equipped with the through-hole that supplies spring bolt 11 to pass through on the apron 16.
As shown in fig. 3, a sliding groove penetrating through the door is formed in the door leaf 6 along the width direction, the push rod 2 is slidably disposed in the sliding groove, the left end of the push rod 2 is in clearance fit with the right end of the output head 32, and the right end of the push rod 2 is connected with the bolt 11.
As shown in fig. 4, when the door 6 is opened, the contact 31 protrudes out of the door frame, the output head 32 is retracted into the door frame, and the latch 11 is retracted into the door; when the door leaf is gradually closed, the contact 31 is pressed leftward by the left side edge of the door leaf 6 to drive the resistance block 33 to move downward, at this time, the resistance block 33 is separated from the wedge-shaped groove 341 of the thrust rod 34, the thrust rod 34 moves leftward under the thrust action of the first spring to drive the upper portion of the transmission rod 35 to tilt leftward, the transmission rod 35 makes a seesaw movement, which means that the lower portion of the transmission rod tilts rightward, the output rod 36 moves rightward passively, the output head 32 extends out of the door frame and pushes the middle push rod 2 to move rightward, and the lock tongue is pushed out rightward from the cover plate 16, extends out of the door leaf, and locks the door leaf. In the locking process, because the bolt does not collide with the door frame, noise is not generated, the door frame and the contact 31 form point contact, the noise is low, and the noise generated when the door is closed is greatly reduced. And just can realize the locking of door leaf when closing the door, need not manual lock door, easy operation.
If the door needs to be opened, the lock cylinder is screwed in the counterclockwise direction by a key to drive the shifting block to rotate counterclockwise, the lock tongue is driven to move leftwards, the lock tongue is retracted into the door leaf, the push rod 2 is pushed leftwards, the output head 32 is retracted into the door frame, the output rod 36 moves leftwards, the lower part of the transmission rod inclines leftwards, the upper part of the transmission rod inclines rightwards to drive the thrust rod to move rightwards, the resistance block and the contact are kept in the original positions and still before the door leaf is opened, the resistance block 33 moves upwards to be inserted into the wedge-shaped groove 341 while the door leaf is opened, the thrust rod 34 is locked, and the contact 31 is pushed right.
Claims (10)
1. The silent lock for the door is characterized by comprising a push rod (2), a locking mechanism (1) arranged on one side, far away from a hinge, of the door and a transmission mechanism (3) arranged on one side, close to the hinge, of a door frame, wherein the locking mechanism (1) comprises a lock tongue (11), the transmission mechanism (3) comprises a contact (31) and an output head (32) which are linked, one end of the push rod (2) is in clearance fit with the output head (32), the other end of the push rod (2) is connected with the lock tongue (11), when the door is opened, the contact (31) protrudes out of the door frame, the output head (32) is retracted into the door frame, and the lock tongue (11) is retracted into the door; when the door is closed, the contact (31) is retracted into the door frame and the output stud (32) protrudes out of the door frame.
2. The silent lock for the door as claimed in claim 1, wherein the transmission mechanism (3) further comprises a resistance block (33) and a thrust rod (34), the contact (31) is in inclined surface fit with the resistance block (33), the resistance block (33) is in inclined surface fit with the thrust rod (34), the resistance block (33) and the thrust rod (34) are both in elastic connection with the door frame, the thrust rod (34) is linked with the output head (32) through a lever mechanism, and the thrust rod (34) and the output head (32) are opposite in moving direction.
3. The silent lock for door as claimed in claim 2, wherein said thrust rod (34) is provided with a wedge-shaped groove (341), and said resistance block (33) is in inclined engagement with the wedge-shaped groove (341).
4. The silent lock for the door as claimed in claim 2, wherein the transmission mechanism (3) further comprises a transmission rod (35), an output rod (36) and a support sleeve (37), the thrust rod (34) and the output rod (36) are respectively movably connected with two ends of the transmission rod (35), the transmission rod (35) is movably arranged in the support sleeve (37), and an output head (32) is arranged at the outer end of the output rod (36).
5. A silent lock for door as claimed in claim 1, further comprising a lock case (4) disposed in the door frame, said transmission mechanism (3) being disposed in the lock case (4), said contacts (31) and output pins (32) being slidably disposed in the lock case (4).
6. The silent lock for the door as claimed in claim 5, wherein the contact (31) is provided with a limiting boss, the lock case (4) is provided with a contact retainer ring (41), and the contact retainer ring (41) is provided with a through hole for the end part of the contact (31) close to the door to pass through.
7. The silent lock for door as claimed in claim 5, wherein said lock case (4) is provided with an output retainer ring (42), said output retainer ring (42) is provided with a through hole for the output head (32) to pass through.
8. A silent lock for door as claimed in claim 1, wherein the door has a sliding slot running through the door in the width direction, said push rod (2) being slidably disposed in the sliding slot.
9. The silent lock for the door as claimed in claim 1, wherein the locking mechanism (1) further comprises a lock cylinder (12) and a toggle block (13), the toggle block (13) is arranged at the inner end of the lock cylinder (12), and the lock tongue (11) is provided with a toggle piece (111) which is abutted against the toggle block (13).
10. A silent lock for door as claimed in claim 1, wherein the contact (31) and output stud (32) end portions are spherical surfaces which are convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010495101.6A CN111877865B (en) | 2020-06-03 | 2020-06-03 | Mute lock for door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010495101.6A CN111877865B (en) | 2020-06-03 | 2020-06-03 | Mute lock for door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111877865A true CN111877865A (en) | 2020-11-03 |
| CN111877865B CN111877865B (en) | 2024-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010495101.6A Active CN111877865B (en) | 2020-06-03 | 2020-06-03 | Mute lock for door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111877865B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851444Y (en) * | 2005-07-07 | 2006-12-27 | 王力集团有限公司 | Automatic door lock and its lock bolt opening mechanism |
| CN101725282A (en) * | 2009-12-11 | 2010-06-09 | 大连理工大学 | Low-noise safe-guard door lock for buildings |
| CN101736951A (en) * | 2010-01-28 | 2010-06-16 | 刘辉舟 | Silent door lock |
| CN104389465A (en) * | 2014-12-09 | 2015-03-04 | 广东炬森五金精密制造有限公司 | Square-tongue silencing door lock |
| CN104975758A (en) * | 2014-12-17 | 2015-10-14 | 陈杰辉 | Non-impact induction silence door lock |
| CN105464471A (en) * | 2015-12-22 | 2016-04-06 | 胡洪芳 | Mute door lock |
| CN206233705U (en) * | 2016-10-10 | 2017-06-09 | 何京川 | The lock of safety opening and closing |
| CN208202834U (en) * | 2018-03-29 | 2018-12-07 | 温州市动宠商贸有限公司 | A kind of door latch structure |
| CN212614129U (en) * | 2020-06-03 | 2021-02-26 | 浙江亚厦装饰股份有限公司 | Mute lock for door |
-
2020
- 2020-06-03 CN CN202010495101.6A patent/CN111877865B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851444Y (en) * | 2005-07-07 | 2006-12-27 | 王力集团有限公司 | Automatic door lock and its lock bolt opening mechanism |
| CN101725282A (en) * | 2009-12-11 | 2010-06-09 | 大连理工大学 | Low-noise safe-guard door lock for buildings |
| CN101736951A (en) * | 2010-01-28 | 2010-06-16 | 刘辉舟 | Silent door lock |
| CN104389465A (en) * | 2014-12-09 | 2015-03-04 | 广东炬森五金精密制造有限公司 | Square-tongue silencing door lock |
| CN104975758A (en) * | 2014-12-17 | 2015-10-14 | 陈杰辉 | Non-impact induction silence door lock |
| CN105464471A (en) * | 2015-12-22 | 2016-04-06 | 胡洪芳 | Mute door lock |
| CN206233705U (en) * | 2016-10-10 | 2017-06-09 | 何京川 | The lock of safety opening and closing |
| CN208202834U (en) * | 2018-03-29 | 2018-12-07 | 温州市动宠商贸有限公司 | A kind of door latch structure |
| CN212614129U (en) * | 2020-06-03 | 2021-02-26 | 浙江亚厦装饰股份有限公司 | Mute lock for door |
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| Publication number | Publication date |
|---|---|
| CN111877865B (en) | 2024-06-25 |
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