CN211851295U

CN211851295U - Mechanical silent lock for door

Info

Publication number: CN211851295U
Application number: CN201922176514.3U
Authority: CN
Inventors: 杨珩; 刘海斌; 杨华
Original assignee: Liuzhou Vocational and Technical College
Current assignee: Liuzhou Vocational and Technical College
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-11-03
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a door mechanical type silence lock, including activity lock body, fixed lock body and two door handles, the activity lock body includes movable lock body shell, compression spring I, spring baffle, spring bolt and activity lock body baffle, fixed lock body includes fixed lock body baffle, fixed lock body shell and inslot baffle, the door handle includes handle casing, handle and swing rocker, and swing rocker middle part is through round pin axle movable mounting on handle casing, and during the user state, the one end of swing rocker is located the stirring piece pushing groove of spring bolt. The handle of the utility model adopts the rocker to open and close the door, the swinging angle of the rocker is limited by the movement of the lock tongue, and the rocker does not have the spring limit, so the swinging does not generate noise; meanwhile, the spring bolt is automatically ejected out by stretching the baffle plate, and slowly moves under the buffering action of the spring force after the spring bolt is contacted with the baffle plate in the groove, so that larger sound is not generated, and the emission of noise is reduced.

Description

Mechanical silent lock for door

Technical Field

The utility model relates to a lock body for the door, in particular to door mechanical type silence lock.

Background

In our daily life, the bedroom door has the highest use frequency, and the bedroom door has a certain sound insulation function after being closed, so that the noise of a dining room and a living room is isolated. However, in a quiet and peaceful bedroom rest space, the noise generated by the door lock when the door is opened and closed greatly influences the daily life of people. Most of the door locks on the market do not have the silencing function, and the generated noise is large. The old and children have high requirements on sleeping environment, and the generation of noise has greater influence on the sleeping quality of the people.

The mechanical lock body of the existing bedroom door has the following defects in the aspects of structure and silence: 1. when the lock tongue of the traditional mechanical lock body collides with the door frame, instant impact sound is generated; 2. the spring back of the spring bolt can generate larger noise after the traditional mechanical lock body closes the door; 3. the impact of the bedroom door and the doorframe can generate collision sound; 4. the impact sound can be given out in the resilience after the door handle opens and closes the door under the action of the spring force.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a door mechanical type silence lock, the spring bolt and the door frame of this lock body do not bump, have eliminated the noise that spring bolt and door frame striking sent, and have improved the structure of handle, have reduced the noise that the handle kick-backs and produce in the twinkling of an eye, for traditional mechanical lock body, the noise that sends when can effectual reduction switch door.

The technical scheme for solving the technical problems is as follows: a mechanical silent lock for a door comprises a movable lock body, a fixed lock body and two door handles, wherein the movable lock body comprises a movable lock body shell, a pressure spring I, a spring baffle, a spring bolt and a movable lock body baffle, the upper part of the movable lock body shell is provided with a spring bolt mounting groove, the spring baffle and the spring bolt are mounted in the spring bolt mounting groove, the spring bolt and the spring bolt mounting groove are in clearance fit, the pressure spring I is mounted between the spring baffle and the spring bolt, one end of the spring bolt close to the pressure spring I is provided with a toggle piece pushing groove, a toggle piece through groove communicated with the toggle piece pushing groove is formed in the spring bolt mounting groove, a guide limiting groove is formed in the spring bolt, a boss matched with the guide limiting groove is arranged in the spring bolt mounting groove, the movable lock body baffle is connected with the movable lock body shell, a spring bolt extending through hole is formed in the corresponding position of the movable lock, the stretching baffle is provided with a convex edge, and when no external force acts, the stretching baffle shields part of the lock tongue from extending out of the through hole;

the fixed lock body comprises a fixed lock body baffle, a fixed lock body shell and an in-groove baffle, a layer of plastic cement is adhered to the end face, in contact with the lock tongue, of the in-groove baffle, the fixed lock body shell is of a hollow three-dimensional structure with an opening, the in-groove baffle is movably installed in the fixed lock body shell, a pressure spring II is installed between the in-groove baffle and the fixed lock body shell, the fixed lock body baffle is connected with the fixed lock body shell, and the position, corresponding to the fixed lock body baffle, of the fixed lock body is provided with a lock tongue extending through hole;

the door handle comprises a handle shell, a handle and a swinging rocker, wherein the handle is installed on the handle shell through a locking bolt, the middle part of the swinging rocker is movably installed on the handle shell through a pin shaft, one end of the swinging rocker is located in a poking part pushing groove of a spring bolt in a use state, and a lock cylinder installation groove is further formed in the handle shell.

The movable lock body is characterized by further comprising a swing spring bolt, the lower portion of the movable lock body shell is further provided with an anti-lock cylinder mounting groove and an arc groove, the swing spring bolt is movably mounted on the movable lock body shell through a pin, the pin is located in the arc groove, the bottom end of the swing spring bolt is provided with a lock swing groove used for mounting an anti-lock cylinder upper swing lock block, the corresponding position on the movable lock body baffle is opened with the swing spring bolt to stretch out a through hole, the corresponding position on the fixed lock body baffle is opened with the swing spring bolt to stretch into the through hole, and the bottom surface in the through hole is provided with plastic cement when the swing spring.

One end of the swing rocker is provided with a toggle head, and the other end of the swing rocker is provided with an inclined end convenient to toggle.

The clearance between spring bolt outer wall and the spring bolt mounting groove inner wall is 0.1 mm.

The utility model mainly aims at the problem of large noise of opening and closing the door of the mechanical lock body of the existing bedroom door, and designs a mechanical silent lock of the door, the handle of the utility model adopts a rocker to open and close the door, the swing angle of the rocker is limited by the movement of the spring bolt, and the rocker has no spring limit, so that the swing can not generate noise; meanwhile, the spring bolt is automatically ejected out by stretching the baffle plate, and slowly moves under the buffering action of the spring force after the spring bolt is contacted with the baffle plate in the groove, so that larger sound is not generated, and the emission of noise is reduced. The utility model discloses the beneficial effect who has divides as follows:

1. when the door is closed, the stretching baffle plate is contacted with the door frame, the buffering effect is achieved under the action of the spring force, and the door frame can be effectively prevented from being impacted to generate larger impact sound.

2. After the spring bolt is popped out and enters the lock hole of the fixed lock body baffle, the spring bolt plays a role in buffering under the reaction force of the baffle in the groove, and the instantaneous spring sound of the spring bolt is greatly reduced.

3. The spring bolt adopts the embedded design, has avoided the impact sound of traditional spring bolt AND gate when closing the door.

4. The special door handle design, the swing rocker swings along with the removal of spring bolt, for traditional handle, has reduced the handle switch door and has released the hitting sound in the twinkling of an eye after the hand in the twinkling of an eye.

5. The utility model discloses an overall structure design is similar with traditional lock shape size, keeps the commonality of lock and lock core installation.

The technical features of the mechanical silent lock for door according to the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1: the utility model discloses a movable lock body front view.

FIG. 2: fig. 1 is a sectional view taken along line a-a.

FIG. 3: the utility model discloses a movable lock body right side view.

FIG. 4: fig. 2 is a sectional view taken along line B-B.

FIG. 5: the utility model discloses a fixed lock body left side view.

FIG. 6: the utility model discloses a fixed lock body front view.

FIG. 7: fig. 6 is a cross-sectional view taken along line C-C.

FIG. 8: the utility model discloses a door handle front view.

FIG. 9: the utility model discloses a door handle left side view.

FIG. 10: the utility model discloses a door handle top view.

FIG. 11: the utility model discloses a door handle rear view.

FIG. 12: the utility model discloses the position relation picture of swing rocker and spring bolt during user state (the state of opening the door).

FIG. 13: the utility model discloses the position relation picture (the state of closing the door) of swing rocker and spring bolt during user state.

FIG. 14: the utility model discloses user state diagram (the state of closing the door).

In the figure: 1-movable lock body housing, 101-bolt installation groove, 102-swing bolt extension through hole, 103-counter lock cylinder installation groove, 104-boss, 105-toggle through groove, 2-compression spring i, 3-spring catch, 4-swing bolt, 5-pin, 6-arc groove, 7-bolt, 71-toggle push groove, 72-guide limit groove, 8-tension spring, 9-tension catch, 10-movable lock body catch, 11-fixed lock body housing, 12-set screw i, 13-compression spring ii, 14-fixed lock body catch, 141-swing bolt extension through hole, 15-in-groove catch, 16-set screw ii, 17-handle housing, 171-installation groove lock cylinder, 18-handle, 19-swing rocker, 20-locking bolt.

Detailed Description

Example 1: a mechanical silent lock for a door is disclosed, as shown in figures 1-11, comprising a movable lock body, a fixed lock body and two door handles, wherein the movable lock body comprises a movable lock body housing 1, a pressure spring I2, a spring baffle 3, a lock tongue 7 and a movable lock body baffle 10, the excircle of the front end of the lock tongue is chamfered so as to facilitate the locking of the hole, the upper part of the movable lock body housing is provided with a lock tongue mounting groove 101, the spring baffle and the lock tongue are mounted in the lock tongue mounting groove, the lock tongue and the lock tongue are in clearance fit, the pressure spring I is mounted between the spring baffle and the lock tongue, one end of the lock tongue close to the pressure spring I is provided with a toggle pushing groove 71, the lock tongue mounting groove is provided with a toggle through groove 105 communicated with the toggle pushing groove, the lock tongue is provided with a guide limiting groove 72, the lock tongue mounting groove is provided with a boss 104 matched with the guide limiting groove, the movable, the corresponding position is opened on the activity lock body baffle has the spring bolt to stretch out the through-hole, it has the spout to open on the activity lock body baffle that the spring bolt stretches out through-hole department, installs tensile baffle 9 through tension spring 8 in the spout, and tensile baffle has protruding edge 91, and when no external force was used, tensile baffle sheltered from partial spring bolt and stretches out the through-hole, and the terminal surface adopts tensile baffle 9 to block restriction spring bolt 7 to pop out before the spring bolt 7 promptly, and under the external force was greater than the circumstances of tension spring force, tensile baffle 9 can be at the limited slip of inslot.

Fixed lock body includes fixed lock body baffle 14, fixed lock body shell 11 and inslot baffle 15, and one deck plastic is pasted with the terminal surface of spring bolt contact to inslot baffle 15, fixed lock body shell is hollow has open-ended spatial structure, and inslot baffle movable mounting is in fixed lock body shell, installs pressure spring II 13 between inslot baffle and the fixed lock body shell, and set screw I12 and set screw II 16 fixed connection are passed through respectively at pressure spring II's both ends on fixed lock body shell and inslot baffle promptly, and pressure spring II 13 has restricted the axial displacement of inslot baffle 15 in movable lock body shell 11, and fixed lock body baffle and fixed lock body shell are connected, and fixed lock body baffle corresponds the position and opens there is the spring bolt to stretch into the through-hole.

The door handle adopts a pair of designs, one is installed outside the door, and the other is installed in the door, and the door handle is the same with outside door handle shape in the door, and the installation direction is opposite. The door handle comprises a handle housing 17, a handle 18 and a swing rocker 19, the handle is mounted on the handle housing by a locking bolt 20, and the handle 18 cannot swing along the center line of the locking bolt 20. The middle part of the swing rocker is movably arranged on the handle shell through a pin shaft, the swing rocker can do circumferential swing along the pin shaft, one end of the swing rocker is positioned in a poking part pushing groove 71 of the spring bolt in a use state, a lock cylinder mounting groove 171 is further formed in the handle shell, and the size of the lock cylinder mounting groove is consistent with that of a lock cylinder of a bedroom room door on the market.

In this embodiment, movable lock body is still including swing bolt 4, the lower part of movable lock body shell still is provided with anti-lock core mounting groove 103 and arc groove 6, swing bolt passes through 5 movable mounting of pin on movable lock body shell, and the pin is located the arc groove, and the lock swing slot 41 that is used for installing the anti-lock core of locking on the swing bolt is offered to swing bolt's bottom, and swing bolt 4 can be under the restriction of pin 5, can be the swing at 90 degrees angles in arc groove 6, and it has swing bolt to stretch out through-hole 102 to correspond the position to open on the movable lock body baffle, the fixed lock body baffle corresponds the position and opens and has swing bolt to stretch into through-hole 141, swing bolt stretches into through-hole 141 and swing bolt and stretches out through-hole 102 the inner bottom surface and is. As an alternative, when the back-locking function is not required, the corresponding back-locking component may be omitted.

In this embodiment, one end of the swing rocker is provided with a toggle head 191, and the other end is provided with an inclined end convenient for toggling. As a transformation, the specific structure of the swing rocker can also be changed according to actual conditions, as long as the spring bolt is convenient to shift to open the door.

In this embodiment, the clearance between spring bolt outer wall and the spring bolt mounting groove inner wall is 0.1 mm. As a transform, the clearance between spring bolt outer wall and the spring bolt mounting groove inner wall can be confirmed according to actual conditions, as long as guarantee that the spring bolt can remove smoothly in the spring bolt mounting groove can.

The use process comprises the following steps: the movable lock body is arranged in a lock hole of the door, and rivets or screws are put into the upper screw hole and the lower screw hole of the baffle plate 10 of the fixed movable lock body and are fixed and screwed with the door. Then, the door handle is installed, as shown in fig. 12, the swing rocker 19 is placed in the pushing groove 71 of the toggle piece at the tail end of the bolt, and then the back locking lock cylinder is placed; the lock core swing block of the back lock is embedded into the lock swing groove 41 on the swing bolt 4, after the lock core is fixed, the upper and lower screw holes of the front and rear handles are fixed by screws and connected together, and the fixation is firm (the panel of the outside door handle is installed in the same step as the inside door handle).

The fixed lock body is installed in the lockhole department of door frame, and the hole site on the round hole position on the fixed lock body baffle 14 of adjustment aligns with the hole site on the movable lock body baffle 10, puts into two screw holes about the fixed lock body baffle 14 with the screw after the position is fixed well in, screws up in advance, tries to close the door and makes the spring bolt 7 get into in the 14 round holes of fixed lock body baffle, finely tunes the fixed lock position after, screws up with the fix with screw, accomplishes the installation of whole mechanical type bedroom door silence lock.

When closing the door, extension baffle 9 can contact the door frame earlier, because inertial force, make extension baffle 9 outwards stretch all the time (extension baffle is when tensile to the limit, it has less clearance to reserve between door and the door frame, do not collide and avoid producing the striking between door and the door frame), when tensile to spring bolt 7 exposes completely, under compression spring I2's effect, spring bolt 7 outwards pops out in the twinkling of an eye, because the design of spring bolt 7 front end adoption chamfer, make spring bolt 7 get into inside the round hole of fixed lock body baffle 14 more easily. The bolt 7 enters the round hole of the baffle 14 of the fixed lock body to contact with the baffle 15 in the groove, and because the plastic is stuck on the outer side of the baffle 15 in the groove, the instant impact can not generate larger sound. The spring force of the pressure spring i 2 is larger than the force of the pressure spring ii 13, and the lock tongue 7 continues to enter the lock hole until the guide limit groove 72 on the lock tongue 7 moves to the limit position, the lock tongue 7 stops (the pressure spring ii 13 plays a role in buffering in the process that the lock tongue extends out of the door to be closed), and a door closing action is completed, as shown in fig. 13.

After closing the door, if need the back locking, then the knob of rotatory back locking lock core afterbody to be in horizontal position after driving back locking lock core and swing bolt 4 rotation 90 degrees, as shown in fig. 14, swing bolt 4 gets into the rectangle lockhole of fixed lock body baffle 14 lower extreme (namely swing bolt stretches into through-hole 141), and the plastic has been placed to the lockhole bottom, prevents that swing bolt 4 rotatory in the twinkling of an eye from producing the striking with the lockhole and making a sound, at this moment realizes the back locking function. When the reverse lock is unlocked, a key is only required to be put into the lock core knob to drive the lock core swinging block to rotate, and the whole swinging lock tongue 4 is driven to rotate to the vertical direction, so that the unlocking operation is completed.

When the door is opened, the swing rocker 19 is pulled by hand to move the bolt into the bolt mounting groove 101, when the bolt 7 completely enters the movable lock body baffle 10, the door can be opened, meanwhile, the stretching baffle 9 moves back under the action of the spring force to block the bolt 7, the bolt 7 is fixed in the original position, and at the moment, the door opening action is completed once.

Claims

1. The utility model provides a door mechanical type silence lock which characterized in that: the movable lock body comprises a movable lock body shell (1), a pressure spring I (2), a spring baffle (3), a lock tongue (7) and two door handles, wherein the upper part of the movable lock body shell is provided with a lock tongue mounting groove (101), the spring baffle and the lock tongue are mounted in the lock tongue mounting groove, the lock tongue and the lock tongue mounting groove are in clearance fit, the pressure spring I is mounted between the spring baffle and the lock tongue, one end of the lock tongue close to the pressure spring I is provided with a toggle piece push groove (71), the lock tongue mounting groove is provided with a toggle piece through groove (105) communicated with the toggle piece push groove, the lock tongue is provided with a guide limiting groove (72), the lock tongue mounting groove is provided with a boss (104) matched with the guide limiting groove, the movable lock body baffle is connected with the movable lock body shell, and the corresponding position on the movable lock body baffle is provided with a lock tongue extending, a stretching baffle (9) is arranged on the bolt extending through hole through a tension spring (8), the stretching baffle is provided with a raised edge (91), and when no external force acts, the stretching baffle shields part of the bolt extending through hole;

the fixed lock body comprises a fixed lock body baffle (14), a fixed lock body shell (11) and an in-groove baffle (15), a layer of plastic is pasted on the end face, in contact with the lock bolt, of the in-groove baffle (15), the fixed lock body shell is of a hollow three-dimensional structure with an opening, the in-groove baffle is movably installed in the fixed lock body shell, a pressure spring II (13) is installed between the in-groove baffle and the fixed lock body shell, the fixed lock body baffle is connected with the fixed lock body shell, and the position, corresponding to the fixed lock body baffle, of the fixed lock body baffle is provided with a lock bolt extending through hole;

the door handle comprises a handle shell (17), a handle (18) and a swing rocker (19), wherein the handle is installed on the handle shell through a locking bolt (20), the middle part of the swing rocker is movably installed on the handle shell through a pin shaft, one end of the swing rocker is located in a poking piece pushing groove (71) of a lock tongue in a use state, and a lock cylinder installation groove (171) is further formed in the handle shell.

2. The mechanical silent door lock of claim 1, wherein: the activity lock body is still including swing bolt (4), the lower part of activity lock body shell still is provided with anti-lock core mounting groove (103) and circular arc groove (6), and swing bolt passes through pin (5) movable mounting on the activity lock body shell, and the pin is located the circular arc inslot, and the lock swing groove (41) that are used for installing the anti-lock core and go up the swing locking piece are offered to swing bolt's bottom, and it has swing bolt to stretch out through-hole (102) to open corresponding position on the activity lock body baffle, the lock body baffle corresponds the position and opens and have swing bolt to stretch into through-hole (141), swing bolt stretches into through-hole (141) and swing bolt and stretches out through-hole (102) bottom surface and is provided.

3. The mechanical silent door lock of claim 1 or 2, wherein: one end of the swing rocker is provided with a toggle head (191), and the other end of the swing rocker is provided with an inclined end convenient for toggling.

4. The mechanical silent door lock of claim 1 or 2, wherein: the clearance between spring bolt outer wall and the spring bolt mounting groove inner wall is 0.1 mm.