CN209277719U - A kind of mute lock of self-locking - Google Patents

Abstract

A kind of mute lock of the utility model, including lock body and locking plate, lock body includes lock box, lock tongue assembly, slide block and handle, and handle is fixedly connected with slide block for driving slide block to rotate, and slide block and lock tongue assembly link, intracorporal fixture block is locked to be rotatably mounted in lock box, the position of lock body side towards locking plate is provided with mandril, the mute lock is provided with unlocking and locking two states, under the unlocking condition, the lock tongue front end is located in lock box, and fixture block blocks the slide block；In the lockout condition, the lock tongue front end is prominent outside lock box, and fixture block is separated with slide block, wherein mandril is used to switch the state between fixture block and slide block, so that multi-functional quite lock switches between unlocking and blocking.The utility model can realize door and window automatic blocking while closing window, improve safety, while solve the problems, such as to be easy contact-impact, noise reduction and the service life for improving door and window when lock tongue opening and closing.

Description

A self-locking silent lock

technical field

The utility model relates to a lockset, in particular to a silent lock which can automatically realize the contraction locking of the lock tongue.

Background technique

When the door or window is closed, people often forget to lock the door and window because of their negligence or habit, which brings certain potential safety hazards. The door and window can be directly opened, which may lead to theft. If the automatic locking can be realized when the doors and windows are closed, it will undoubtedly greatly improve the safety, but at present, there are only structures such as window closers and door closers to realize the closing of doors and windows, but it has not been effectively and simply realized. Self-locking door locks.

In addition, when the door lock is locked, the dead bolt touches the strike plate, retracts inwardly, and then the dead bolt pops out and locks in the cavity in the strike plate to realize locking. It is not difficult to find that when the door is closed, the lock tongue will hit the strike plate to make a sound, which will cause noise, and if things go on like this, the impact caused by the impact will cause deformation of the door frame and damage to the lock cylinder due to the impact situation occurs.

Utility model content

The purpose of this utility model is to provide a self-locking silent lock, which can realize the automatic pop-up of the deadbolt while closing the window, realize the automatic locking of doors and windows, improve safety, and solve the problem of the deadbolt and striker plate being opened and closed at the same time. It can avoid the collision and friction of the lock tongue when it is opened and closed, so as to achieve a quiet effect and improve the service life of the door and window at the same time.

For achieving the above object, the technical scheme that the utility model adopts is:

The utility model provides a self-locking silent lock, which comprises a lock body and a striker plate. The lock body includes a lock box, a bolt assembly, a toggle block and a handle, and the handle is connected to the toggle block. connected and can drive the toggle block to rotate, the toggle block is linked with the lock tongue assembly, and is used to drive the lock tongue assembly to expand and contract, and the lock plate is provided with a position limiting lock tongue A cavity, the lock body is provided with a block, the block is rotatably fixed in the lock box, a push rod is provided on the side of the lock body facing the strike plate, and the silent lock is provided with an unlocking and There are two states of locking. In the unlocked state, the front end of the lock tongue is located in the lock box, and the locking block clamps the toggle block; in the locked state, the front end of the lock tongue protrudes from the Outside the lock box, the locking block is separated from the toggle block, wherein the push rod is used to switch the state between the locking block and the toggle block, so that the The above multi-functional silent lock can be switched between unlocked and locked states.

For the above technical solution, the applicant has a further optimized implementation plan.

Further, one end of the clamping block is in contact with the push rod, and the other end of the clamping block is provided with a hook-shaped positioning part that can hook the toggle block. In the unlocked state, the rotation of the toggle block makes the lock The front end of the tongue is located in the lock box, and the toggle block is snapped into the positioning part of the block; in the locked state, one end of the block is pushed by the push rod, so that the block rotates and drives the block The positioning part at the other end of the block is released from the toggle block, and the front end of the lock bolt protrudes outside the lock box.

Further, a limiting block for limiting the rotational position of the locking block is arranged in the lock box.

Furthermore, the limiting block is arranged close to one end of the positioning portion of the locking block, and is used to limit the rotational position of the locking block in the locked state.

Further, a torsion spring for resetting the block is provided at the block.

Further, the push rod is an elastic push rod.

Further, the lock tongue assembly includes a lock tongue, a lock bar, a contact piece and a return spring, and a horizontally arranged through slot for accommodating the lock bar to pass through is opened in the lock box, and the lock bar is arranged parallel to the through slot And it can be movably installed in the through groove, one end of the lock bar is fixedly connected to the lock tongue, the other end of the lock bar is fixedly connected to the contact piece, the top end of the toggle block is sleeved on the lock bar, the The return spring is arranged on the outside of the contact piece to push the lock tongue to pop out, wherein, after turning the handle, the toggle block drives the lock tongue to retract, and when the lock tongue retracts back into the lock box, the positioning part of the locking block catches the lock tongue. The lower part of the toggle block fixes the position of the toggle block, and then the lock tongue is locked in the lock box. When the door and window are closed, the push rod is forced to lift the block inward so that the positioning part of the block is in line with the lock box. The lower part of the toggle block is tripped, and at the same time, the return spring acts to push the dead bolt to pop out.

Due to the use of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

The self-locking silent lock of the utility model adds a rotatable block, and one end of the block is in contact with the external push rod, and the positioning part at the other end can overlap and lock with the lower part of the toggle block. , when unlocking, turn the handle to make the toggle block rotate, and then drive the lock tongue to retract. When the lock tongue is retracted, the lower part of the toggle block is hooked by the positioning part of the block to achieve locking, and when the window is closed, the ejector rod Touch the striker plate to push against the inside of the lock box, so that the block is toggled and rotated, so as to realize the tripping between the positioning part at the other end of the block and the toggle block, thereby releasing the lock tongue, so that the lock tongue pops out, In order to realize automatic locking, prevent people from forgetting to close the lock, improve safety, and at the same time, the lock tongue will not be bumped and rubbed when opening and closing, thereby reducing noise and improving the service life of the silent lock.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a silent lock in an unlocked state according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of the silent lock in a locked state according to an embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1. Lock box;

2. Lock tongue assembly, 21, lock tongue, 22, lock lever, 23, contact piece, 24, return spring, 25, through groove on the lock box;

3. Toggle block;

4, block, 41, positioning part, 42, torsion spring, 43, rotating shaft;

5. Ejector.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Fig. 1 is a schematic structural diagram of a silent lock in an unlocked state according to this embodiment; Fig. 2 is a schematic structural diagram in a locked state according to this embodiment.

This embodiment describes a self-locking silent lock, which includes a lock body and a strike plate, wherein the strike plate (not shown in the figure) is fixed on the door frame or window frame, and a cavity is opened on it, and the strike plate The structure can select conventional structure, and it is not the key point of the present utility model, repeats no more here.

As shown in Figure 1 and Figure 2, the lock body includes a lock box 1, a lock tongue assembly 2, a toggle block 3 and a handle (not shown in the figure), and the lock tongue assembly 2 and the toggle block 3 are located in the lock box 1, the handle drives the toggle block 3 to rotate through the square shaft, and the toggle block 3 then drives the dead bolt 21 to enter and exit the cavity of the lock box 1 and the strike plate, thereby realizing the unlocking and locking of the door or window.

The lock body is provided with a block 4, the block 4 is rotatably fixed in the lock box 1, and a push rod is arranged on the side of the lock body facing the strike plate, and the silent lock is provided with an unlocking and locking mechanism. There are two locking states. In the unlocked state, the front end of the dead bolt 21 is located in the lock box 1, and the locking block 4 blocks the toggle block 3; in the locked state, the The front end of the lock tongue 21 protrudes outside the lock box 1, and the clamp block 4 is separated from the toggle block 3, wherein the push rod 5 is used to switch the clamp block 4 and the toggle block 3. The state between the above-mentioned toggle blocks 3 makes the multifunctional silent lock switch between the unlocked state and the locked state.

In this embodiment, the locking block 4 is fixed in the lock box 1 through the rotating shaft 43 , and of course it can also be rotatably fixed in the lock box through a pivot or the like. One end of the push rod 5 is in contact with the push rod 5, and the other end is in contact with one end of the clamping block 4. The other end of the clamping block 4 is provided with a hook-shaped positioning portion 41, and the positioning portion 41 can be clamped. Hold the toggle block 3, the ejector rod 5 here can be an elastic ejector rod 5 that can automatically reset, which is beneficial to the cooperation of mechanical movement.

The lock tongue assembly 2 includes a lock tongue 21, a lock bar 22, a contact piece 23 and a return spring 24. A through slot 25 arranged horizontally to accommodate the lock bar 22 is provided in the lock box 1, and the lock bar 22 is parallel to the Set in the through groove 25 and movably pass through the through groove 25, one end of the lock rod 22 is fixedly connected to the lock tongue 21, the other end of the lock rod 22 is fixedly connected to the contact piece 23, and the toggle The top of the block 3 is sleeved on the lock rod 22, and the return spring 24 is arranged on the outside of the contact piece 23 to push the dead bolt 21 to pop up, wherein, after turning the handle, the block 3 drives the dead bolt 21 back When the lock tongue 21 shrinks back into the lock box 1, the positioning part 41 of the clamping block 4 hooks the lower part of the toggle block 3 so that the position of the toggle block 3 is fixed, and then the lock tongue 21 is locked in the lock box. 1 (as shown in Figure 1), when the doors and windows are closed, the push rod 5 is forced to lift the block 4 inward so that the positioning part 41 of the block 4 is released from the lower part of the toggle block 3, and at the same time The return spring 24 acts to push the lock tongue 21 to pop out (as shown in FIG. 2 ).

The self-locking mute lock of this embodiment adds a rotatable block 4, and one end of the block 4 is in contact with the external elastic push rod 5, and the positioning part 41 at the other end can be in contact with the lower part of the toggle block 3. Lap lock, in this way, when opening the door and window, turn the handle to make the toggle block 3 rotate, and then drive the lock tongue 21 to retract, when the lock tongue 21 is fully retracted, the lower part of the toggle block 3 is positioned by the clamp block 4 Part 41 is hooked to realize locking, and when the window is closed, the elastic ejector rod 5 touches the striker plate to push against the inside of the lock box 1, so that the block 4 is turned and rotated, thereby realizing the positioning part of the other end of the block 4 41 and the tripping block 3, thereby releasing the dead bolt 21, so that the dead bolt 21 pops up, thereby realizing the automatic locking of the doors and windows, preventing people from forgetting to close the doors and windows, improving safety, and meanwhile the dead bolt 21 will not be locked when the door is opened. When it is closed, it is bumped and rubbed, thereby reducing noise and improving the service life of the lock. In addition, a projection is provided in the locking plate corresponding to the position where one end of the ejector rod contacts, so that the ejector rod can be effectively jacked up.

In order to realize the automatic reset of the block 4 when the window is opened, the rotating shaft 43 at the block 4 can adopt a rotatable and resettable damping rotating shaft 43, or by setting a reset device at the rotating shaft 43, such as at the block 4 The torsion spring 42 that resets block 4 usefulness is set at rotating shaft 43 places.

In addition, a limit block 6 is provided inside the lock box 1 to limit the rotational position of the locking block 4 . The limiting block 6 is set close to one end of the positioning portion 41 of the clamping block 4. In this embodiment, it is set close to the lower end of the clamping block 4 and is located below the positioning portion 41. The rotational position of the block.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. Equivalent changes or modifications made according to the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims (7)

1. A self-locking silent lock, comprising a lock body and a strike plate, the lock body comprising a lock box, a dead bolt assembly, a toggle block and a handle, the handle is connected to the toggle block and can be Drive the toggle block to rotate, the toggle block is linked with the lock tongue assembly to drive the lock tongue assembly to expand and contract, the lock plate is provided with a cavity for limiting the lock tongue, It is characterized in that a block is provided in the lock body, the block is rotatably fixed in the lock box, a push rod is set on the side of the lock body facing the strike plate, and the silent lock is provided with an unlocking In the unlocked state, the front end of the lock tongue is located in the lock box, and the locking block clamps the toggle block; in the locked state, the front end of the lock tongue protrudes Outside the lock box, the locking block is separated from the toggle block, wherein the push rod is used to switch the state between the locking block and the toggle block, so that The multifunctional silent lock is switched between unlocked and locked states. 2. The self-locking silent lock according to claim 1, characterized in that, one end of the block is in contact with the push rod, and the other end of the block is provided with a hook-shaped hook that can hook the toggle block. Positioning part, in the unlocked state, the rotation of the toggle block makes the front end of the lock tongue located in the lock box, and the toggle block snaps into the positioning part of the locking block; in the locked state, one end of the locking block is pushed Pushing the rod makes the locking block rotate and then drives the positioning part at the other end of the locking block to release from the toggle block, and the front end of the deadbolt protrudes outside the lock box. 3. The self-locking silent lock according to claim 1 or 2, characterized in that, a limiting block for limiting the rotational position of the locking block is arranged in the lock box. 4. The self-locking silent lock according to claim 3, wherein the limiting block is arranged close to one end of the positioning portion of the locking block, and is used to limit the rotation position of the locking block in the locked state. 5. The self-locking silent lock according to claim 1, characterized in that a torsion spring for resetting the block is provided at the block. 6. The self-locking silent lock according to claim 1, wherein the push rod is an elastic push rod. 7. The self-locking silent lock according to claim 1, characterized in that the deadbolt assembly includes a deadbolt, a locking rod, a contact piece and a return spring, and a lock rod is provided in the lock box to pass through A horizontally arranged through groove, the lock rod is arranged parallel to the through groove and is movably inserted in the through groove, one end of the lock rod is fixedly connected to the lock tongue, and the other end of the lock rod is fixedly connected to the contact piece, The top end of the toggle block is sleeved on the lock rod, and the return spring is arranged on the outside of the contact piece to push the lock tongue to pop out, wherein, after the handle is turned, the toggle block drives the lock tongue to retract, and the lock When the tongue retracts back into the lock box, the positioning part of the clamping block hooks the lower part of the toggle block so that the position of the toggle block is fixed, and then the dead bolt is locked in the lock box. When the door and window are closed, the push rod is pressed Pushing the push rod inwardly lifts the clamping block so that the positioning part of the clamping block is released from the lower part of the toggle block, and at the same time the return spring acts to push the dead bolt to pop out.