Emergency lock
Through the emergency lock design with impact shrapnel and spring mechanism, the problems of poor concealment of traditional emergency locks and the need for keys to unlock the lock are solved, and rapid emergency lock opening and high concealment are achieved to meet the needs of different door weights.
Patent Information
- Application Number
- CN202510349629.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-07-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional emergency locks are not concealed in secret rooms and are prone to expose the location of the secret rooms. The unlocking requires a key and cannot be opened quickly in an emergency.
An emergency lock is designed, using impact shrapnel and spring mechanism, and emergency lock opening is achieved through strong impact. The lock tongue plate is raised when the pre-pressure exceeds, and the rotary button no longer holds the lock tongue plate. The lock tongue plate retracts into the lock shell under the action of the spring to achieve rapid lock opening, and the pre-pressure is adjusted through the elastic force of the impact shrapnel to adapt to different door weights.
It realizes quick unlocking without a key in an emergency situation, and adapts to different door weights by adjusting the impact force, which has high concealment, is not easy to detect, and extends service life.
Smart Images
Figure CN120273582A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of locks and relates to an emergency lock. Background Art
[0002] Emergency locks are generally used in escape doors, secret rooms, and emergency exits. In the event of an emergency, the door lock can be quickly opened to quickly hide and escape. Traditional emergency locks are equipped with handles, which are not very concealed. Therefore, when installing an emergency lock on a secret room, the handle is likely to reveal the location of the secret room. Summary of the invention
[0003] In view of the above problems, the present invention provides an emergency lock, which has the advantages of being able to be unlocked in an emergency and being highly concealed.
[0004] The object of the present invention is achieved in that:
[0005] An emergency lock comprises a lock shell, a lock tongue and a rotating knob, wherein the rear end of the lock tongue is connected to a lock tongue plate, the rotating knob is arranged behind the lock tongue plate, a contact end is arranged on the rotating knob, the contact end contacts the rear end of the lock tongue plate, a torsion spring is also sleeved on the rotating knob, and the torsion spring always exerts a force on the contact end of the rotating knob to keep away from the lock tongue plate;
[0006] The bolt plate is provided with an impact spring, which includes a fixed section, a connecting section and a pre-pressing section. The fixed section of the impact spring is fixedly connected to the bolt plate, the lower end of the pre-pressing section of the impact spring abuts against the bolt plate, and the upper end of the pre-pressing section abuts against the lock shell, and the pre-pressing section applies a force to press the bolt plate downward;
[0007] A spring seat is also provided in the lock housing, a spring abutment end is formed on the lock tongue plate, a spring is provided between the spring seat and the spring abutment end and always gives the lock tongue plate a force to drive the lock tongue to retract into the lock housing.
[0008] The present invention uses the design of the impact spring piece so that the impact spring piece gives a certain pre-pressure to the bolt plate. Only when the impact force exceeds the pre-pressure, the rear end of the bolt plate tilts upward and moves to the top of the knob, and the knob no longer supports the bolt plate. The bolt plate is pulled back into the locker under the action of the spring, thereby realizing emergency unlocking. In this way, when encountering an emergency, there is no need to use a key to unlock. Only a large force is needed to achieve emergency unlocking, and the unlocking is quick. And the elastic force of the impact spring piece can be selected according to factors such as the weight of the door, so as to change the size of the pre-pressure, so as to adjust the size of the impact force required to open the door according to the needs. And this emergency lock is not provided with a handle, so as to achieve a high concealment effect, and it is not easy to be found when used on the door of a secret room.
[0009] The present invention is further configured such that: the fixed section of the impact shrapnel is horizontally arranged and fixedly connected to the locking tongue plate, the rear end of the fixed section extends backward and upward to form a connecting section, the rear end of the connecting section extends backward and downward to form a preloading section, and the lower end of the preloading section abuts against the locking tongue plate.
[0010] Through the above design: the impact shrapnel can apply a preloading force to the front part of the locking tongue plate through the fixed end, and can also apply a pressure to the rear part of the locking tongue plate through the preloading section. By applying pressure at both ends, the deformation amount of the locking tongue plate itself can be reduced, making the emergency unlocking more stable.
[0011] The present invention is further configured such that: the upper end of the preloading section is connected to the connecting section through an arc transition, and the lower end of the preloading section is provided with an arc surface that abuts against the locking tongue plate.
[0012] Through the above setting, the lock shell and the locking tongue plate can be protected, are not easily worn, and the service life is increased.
[0013] The present invention is further configured such that: the fixed section of the impact shrapnel is arranged between the locking tongue and the locking tongue plate and is fixed by screws.
[0014] Through the above setting, the impact shrapnel can be replaced according to different requirements, and it is convenient to repair and replace the worn impact shrapnel.
[0015] The present invention is further configured such that: limiting strips are provided on both sides of the locking tongue plate, and the impact shrapnel is arranged between the two limiting strips.
[0016] Through the design of the limiting strips, the movement of the impact shrapnel is made more stable.
[0017] The present invention is further configured such that: two locking tongue plate guiding strips are formed in the lock shell, and the locking tongue plate guiding strips are arranged on both sides of the locking tongue plate.
[0018] Through the setting of the locking tongue plate guiding strips, the locking tongue plate is restricted from excessive deviation during movement.
[0019] The present invention is further configured such that: the spring seat is arranged at the rear end of the locking tongue plate guiding strip, and the spring seat is integrally provided with the locking tongue plate guiding strip.
[0020] Through the above setting, the structure is made more compact.
[0021] The present invention is further configured such that: a guiding groove is formed on the lock shell, a guiding post is fixed on the turning knob, the guiding post is slidably arranged in the guiding groove, one end of the torsion spring is connected to the lock shell, the other end of the torsion spring is sleeved on the guiding post, and the torsion spring always gives the guiding post a movement from the end of the guiding groove close to the locking tongue plate to the end away from the locking tongue plate.
[0022] Through the above setting, the rotation path of the turning knob is restricted.
[0023] The present invention is further configured such that: an arc-shaped knob abutting groove is formed at the rear end of the lock tongue plate, and the abutting end of the knob is an arc-shaped protrusion and is matched with the knob abutting groove.
[0024] With the above configuration, after emergency unlocking is facilitated, the knob can be driven to reset by the key. Through the design of the arc-shaped abutting groove and the arc-shaped protrusion, the reset is made easier.
[0025] The present invention is further configured such that: a relief groove is further formed at the abutting end of the knob.
[0026] Through the setting of the relief groove, the thickness of the abutting end of the knob can be reduced, so that the lock tongue plate can be more easily moved above the knob to achieve emergency unlocking.
[0027] The prominent and beneficial technical effects of the present invention compared with the prior art are as follows: through the design of the impact elastic sheet, the impact elastic sheet gives a certain pre-pressure to the lock tongue plate. Only when the impact force exceeds the pre-pressure, the rear end of the lock tongue plate tilts upward and moves above the knob, and the knob no longer abuts against the lock tongue plate. The lock tongue plate is pulled back into the lock body under the action of the spring, thus realizing emergency unlocking. In this way, in case of an emergency, there is no need to use a key to unlock. Only by hitting with a greater force can emergency unlocking be achieved, and the unlocking is rapid. And the elastic force of the impact elastic sheet can be selected according to factors such as the weight of the door, so as to change the magnitude of the pre-pressure and achieve the adjustment of the impact force required to open the door according to requirements. And there is no handle provided on this emergency lock, thus achieving the effect of high concealment and being not easily detected when applied to the secret room door. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0029] Figure 1 It is a schematic structural diagram of the emergency lock.
[0030] Figure 2 It is a schematic internal structure diagram of the emergency lock.
[0031] Figure 3 It is a schematic internal structure diagram of the emergency lock when the lock tongue retracts.
[0032] Figure 4 It is a state diagram of the lock tongue plate and the knob during impact.
[0033] Figure 5 It is a schematic structural diagram of the impact elastic sheet.
[0034] 1 - lock housing; 2 - lock tongue; 3 - turning knob; 31 - abutting end; 4 - limiting protrusion; 5 - lock tongue hole; 6 - lock tongue plate; 7 - torsion spring; 8 - impact elastic sheet; 81 - fixed section; 82 - connecting section; 83 - pre - pressed section; 9 - spring seat; 10 - spring abutting end; 11 - spring; 12 - limiting strip; 13 - lock tongue plate guiding strip; 14 - guiding groove; 15 - guiding column; 16 - relief groove. Detailed implementation mode
[0035] To make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.
[0036] An emergency lock includes a lock housing 1, a lock tongue 2 and a turning knob 3. Limiting protrusions 4 are provided on both sides of the rear end of the lock tongue 2, and the distance between the two limiting protrusions 4 is greater than the width of the lock tongue hole 5; the rear end of the lock tongue 2 is connected to a lock tongue plate 6, the turning knob 3 is arranged behind the lock tongue plate 6, and an abutting end 31 is provided on the turning knob 3, and the abutting end 31 abuts against the rear end of the lock tongue plate 6. A keyhole is provided on the turning knob. A torsion spring 77 is also sleeved on the turning knob 3, and the torsion spring always gives a force to the abutting end 31 of the turning knob away from the lock tongue plate 6;
[0037] An impact elastic sheet 8 is provided on the lock tongue plate 6. The impact elastic sheet includes a fixed section 81, a connecting section 82 and a pre - pressed section 83. The fixed section 81 of the impact elastic sheet 8 is fixedly connected to the lock tongue plate 6. The lower end of the pre - pressed section 83 of the impact elastic sheet abuts against the lock tongue plate 6, and the upper end of the pre - pressed section 83 abuts against the lock housing 1. The pre - pressed section 83 gives a downward pressing force to the lock tongue plate 6;
[0038] A spring seat 9 is further provided in the lock housing 1. A spring abutting end 10 is formed on the lock tongue plate 6. A spring 11 is provided to abut between the spring seat 9 and the spring abutting end 10 and always gives a force to the lock tongue plate to drive the lock tongue to retract into the lock housing.
[0039] Through the design of the impact shrapnel 8, the impact shrapnel 8 applies a certain pre-pressure to the locking tongue plate 6. Only when the impact force exceeds the pre-pressure, the rear end of the locking tongue plate 6 tilts upward and moves above the rotary button 3. The rotary button 3 no longer holds the locking tongue plate 6, and the locking tongue plate 6 is pulled back into the lock housing under the action of the spring, thus realizing emergency unlocking. In this way, in case of an emergency, there is no need to use a key to unlock. Just strike with a greater force to achieve emergency unlocking quickly. And the elastic force of the impact shrapnel can be selected according to factors such as the weight of the door, so as to change the magnitude of the pre-pressure and achieve the adjustment of the impact force required to open the door according to the demand. And there is no handle on this emergency lock, thus achieving the effect of high concealment. When used on the secret room door, it is not easy to be detected.
[0040] The fixed section 81 of the impact shrapnel is horizontally arranged and fixedly connected to the locking tongue plate 6. The rear end of the fixed section 81 extends backward and upward to form a connecting section 82, and the rear end of the connecting section 82 extends backward and downward to form a pre-pressure section 83. The lower end of the pre-pressure section 83 abuts against the locking tongue plate 6. Through the above design: the impact shrapnel 8 can apply pre-pressure to the front part of the locking tongue plate through the fixed end 81, and can also apply pressure to the rear part of the locking tongue plate through the pre-pressure section 83. By applying pressure at both ends, the deformation amount of the locking tongue plate itself can be reduced, making the emergency unlocking more stable.
[0041] The upper end of the pre-pressure section 83 is connected to the connecting section by an arc transition, and the lower end of the pre-pressure section 83 is provided with an arc surface abutting against the locking tongue plate. Through the above setting, the lock housing and the locking tongue plate can be protected, not easily worn, and the service life is increased.
[0042] The fixed section 81 of the impact shrapnel is arranged between the locking tongue 2 and the locking tongue plate 6 and is fixed by screws. Through the above setting, the impact shrapnel can be replaced according to different needs, and it is convenient to repair and replace the worn impact shrapnel.
[0043] Limit strips 12 are provided on both sides of the locking tongue plate 6, and the impact shrapnel 8 is arranged between the two limit strips 12. Through the design of the limit strips, the movement of the impact shrapnel is made more stable.
[0044] Two locking tongue plate guiding strips 13 are formed in the lock housing, and the locking tongue plate guiding strips 13 are arranged on both sides of the locking tongue plate 6. Through the setting of the locking tongue plate guiding strips, the locking tongue plate is restricted from excessive deviation during movement.
[0045] The spring seat 9 is arranged at the rear end of the locking tongue plate guiding strip 13, and the spring seat is integrally arranged with the locking tongue plate guiding strip. Through the above setting, the structure is made more compact.
[0046] A guiding groove 14 is formed on the lock housing, and a guiding post 15 is fixed on the turning knob. The guiding post 15 is slidably arranged in the guiding groove 14. One end of the torsion spring 7 is connected to the lock housing, and the other end of the torsion spring is sleeved on the guiding post 15. The torsion spring always gives the guiding post 15 a movement from one end of the guiding groove 14 close to the lock tongue plate to the end away from the lock tongue plate. The guiding groove is 90 degrees. After resetting, the side of the contact end of the turning knob abuts against the rear end of the lock tongue plate. Through the above settings, the rotation path of the turning knob is restricted.
[0047] An arc-shaped turning knob contact groove is formed at the rear end of the lock tongue plate. The contact end of the turning knob is an arc-shaped protrusion and matches the turning knob contact groove. Through the above settings, after emergency unlocking, it is convenient for the turning knob to be reset by the key drive. Through the design of the arc-shaped contact groove and the arc-shaped protrusion, the reset is easier.
[0048] A relief groove 16 is also formed at the contact end of the turning knob. Through the setting of the relief groove, the thickness of the contact end of the turning knob can be reduced, so that the lock tongue plate can more easily move above the turning knob to achieve emergency unlocking.
[0049] The present invention can be emergently unlocked and has the characteristics of high concealment.
[0050] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. An emergency lock, comprising a lock case, a lock tongue and a turning knob, characterized in that, The rear end of the lock tongue is connected to a lock tongue plate, a rotating knob is arranged behind the lock tongue plate, a contact end is arranged on the rotating knob, the contact end contacts the rear end of the lock tongue plate, a torsion spring is also sleeved on the rotating knob, and the torsion spring always gives the contact end of the rotating knob a force to keep away from the lock tongue plate; The bolt plate is provided with an impact spring, which includes a fixed section, a connecting section and a pre-pressing section. The fixed section of the impact spring is fixedly connected to the bolt plate, the lower end of the pre-pressing section of the impact spring abuts against the bolt plate, and the upper end of the pre-pressing section abuts against the lock shell, and the pre-pressing section applies a force to press the bolt plate downward; A spring seat is also provided in the lock housing, a spring abutment end is formed on the lock tongue plate, a spring is provided between the spring seat and the spring abutment end and always gives the lock tongue plate a force to drive the lock tongue to retract into the lock housing.
2. The emergency lock according to claim 1, characterized in that: The fixed section of the impact spring is horizontally arranged and fixedly connected to the lock tongue plate, the rear end of the fixed section extends rearward and upward to form a connecting section, the rear end of the connecting section extends rearward and downward to form a pre-compression section, and the lower end of the pre-compression section abuts against the lock tongue plate.
3. The emergency lock according to claim 2, wherein: The upper end of the pre-pressing section is connected to the connecting section through an arc transition, and the lower end of the pre-pressing section is provided with an arc surface that abuts against the lock tongue plate.
4. An emergency lock according to claim 2, characterized in that: The fixing section of the impact spring is arranged between the lock tongue and the lock tongue plate and is fixed by screws.
5. An emergency lock according to claim 1, characterized in that: Limiting strips are arranged on both sides of the locking tongue plate, and the impact spring piece is arranged between the two limiting strips.
6. An emergency lock according to claim 1, characterized in that: Two bolt plate guide strips are formed in the lock housing, and the bolt plate guide strips are arranged on both sides of the bolt plate.
7. An emergency lock according to claim 6, characterized in that: The spring seat is arranged at the rear end of the guide strip of the bolt plate, and the spring seat and the guide strip of the bolt plate are arranged integrally.
8. An emergency lock according to claim 1, characterized in that: A guide groove is formed on the lock shell, and a guide column is fixed on the turning knob. The guide column is slidably arranged in the guide groove. One end of the torsion spring is connected to the lock shell, and the other end of the torsion spring is mounted on the guide column. The torsion spring always allows the guide column to move from one end of the guide groove close to the lock tongue plate to the end away from the lock tongue plate.
9. An emergency lock according to claim 8, characterized in that: The rear end of the bolt plate is formed with an arc-shaped turning button abutment groove, and the abutment end of the turning button is an arc-shaped protrusion and matches the turning button abutment groove.
10. An emergency lock according to claim 8, characterized in that: The abutting end of the rotating knob is also formed with a yielding groove.