CN223387115U - Electromechanical escape lock - Google Patents

Abstract

The utility model discloses an electromechanical escape lock which comprises a lock shell, a lock tongue, a limiting claw, a touch rod and a locking assembly, wherein a through hole is formed in the side part of the lock shell. The lock tongue is connected with the lock shell in a sliding way and is positioned at the through hole; the limiting claw is connected to the lock shell and is arranged adjacent to the lock tongue, the limiting claw is located on one side of the lock tongue, deviating from the through hole, the limiting claw is provided with a containing groove for containing the lock tongue to retract, one side of the containing groove, close to the lock tongue, is provided with an opening, and under a normal state, the distance between the openings is smaller than the width of the lock tongue so as to limit the lock tongue to retract. The touch rod is connected to the lock shell in a sliding way, the touch rod is hinged with the limiting clamping jaw, the touch rod moves to drive the distance between the openings to be increased, and the lock tongue can retract into the accommodating groove. The locking assembly comprises an electromagnet and a locking rod, wherein the electromagnet is connected to the lock shell, the locking rod is rotationally connected to the lock shell, the electromagnet is used for absorbing the lateral part of the locking rod, when the locking rod is absorbed, the end part of the locking rod is abutted against the movable rod so as to limit the movement of the touch rod, and a safety reset spring is further arranged between the locking rod and the lock shell.

Description

Electromechanical escape lock

Technical Field

The utility model relates to the technical field of locks, in particular to an electromechanical escape lock.

Background

In emergency situations, such as fires, earthquakes, etc., the escape lock needs to be able to be opened quickly and reliably in order for personnel to evacuate quickly. The traditional escape lock usually adopts a pure mechanical structure, and although the escape lock meets the escape requirement to a certain extent, the traditional escape lock has defects in the aspects of intelligence and automation. Meanwhile, part of mechanical locks can not be opened in time under emergency conditions due to complex operation or structural faults, and potential safety hazards are brought to escape.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the electromechanical escape lock provided by the utility model has the advantages of simple structure, convenience in operation, safety and reliability.

The electromechanical escape lock comprises a lock shell, a lock tongue, a limiting claw, a touch rod and a locking assembly, wherein a through hole is formed in the side portion of the lock shell. The lock tongue is connected with the lock shell in a sliding way and is positioned at the through hole. The limiting claw is connected to the lock shell and is arranged adjacent to the lock tongue, the limiting claw is located on one side, away from the through hole, of the lock tongue, a containing groove for containing the lock tongue to retract is formed in the side, close to the lock tongue, of the containing groove, an opening is formed in one side, close to the lock tongue, of the containing groove, and under a normal state, the distance between the openings is smaller than the width of the lock tongue, so that the lock tongue is limited to retract the lock shell. The touch rod is connected to the lock shell in a sliding manner, the touch rod is hinged with the limiting clamping jaw, the touch rod moves to drive the gap between the openings to be increased, and the lock tongue can retract into the accommodating groove. The locking assembly comprises an electromagnet and a locking rod, the electromagnet is connected with the lock shell, the locking rod is rotationally connected with the lock shell, the electromagnet is used for absorbing the side part of the locking rod, when the locking rod is absorbed, the end part of the locking rod is abutted against the touch rod so as to limit the movement of the touch rod and limit the locking bolt to retract into the lock shell, and a safety reset spring is further arranged between the locking rod and the lock shell.

The electromechanical escape lock provided by the embodiment of the utility model has the advantages that the lock shell is used as the main body structure of the whole escape lock, the side part of the lock shell is provided with the through hole for installing the lock tongue, and the lock tongue is connected to the lock shell in a sliding manner and is used for being matched with the fixed structures such as the door frame and the like to realize the locking function. In an emergency situation, the lock tongue needs to be able to retract the lock housing rapidly in order to open the escape passage, while the limit pawl is connected to the lock housing and arranged adjacent to the lock tongue. The limit claw is positioned at one side of the lock tongue, which is away from the opening, and is provided with a containing groove for containing the lock tongue to retract. The side of the accommodating groove, which is close to the lock tongue, is provided with an opening, and the distance between the openings is smaller than the width of the lock tongue in a normal state so as to limit the lock tongue to retract into the lock shell. Therefore, under normal conditions, the lock tongue is firmly clamped by the limiting claw and cannot retract at will, the touch rod is hinged with the limiting claw, and when the touch rod moves, the opening distance of the limiting claw can be driven to be increased, so that the lock tongue can retract into the accommodating groove. The arrangement of the touch rod provides an operating mechanism for the retraction of the lock tongue. In the locking assembly, an electromagnet is connected to a lock shell, and a locking rod is rotatably connected to the lock shell. The electromagnet is used for absorbing the side part of the locking rod, when the electromagnet is electrified, the locking rod is absorbed and rotated, and the end part of the locking rod is abutted against the movable rod, so that the movement of the touch rod is limited, and the locking bolt is indirectly limited to retract into the lock shell. Therefore, under normal conditions, the electromagnet keeps in an electrified state, the locking rod firmly locks the touch rod, and the locking bolt cannot retract. In an emergency, the locking lever can release the touch lever by only cutting off the power supply of the electromagnet, and the lock tongue is allowed to retract the lock shell. Further, a safety return spring is arranged between the locking rod and the lock shell and is used for supporting the locking rod to maintain a posture of abutting against the touch rod under the condition that the electromagnet is not powered, and the locking effect is low but the mechanical movement of the inclined tongue which can be pressed downwards can be restored. The unlocking mode of the electromechanical escape lock provided by the utility model is that the electromagnet is powered off, the limiting claw loses the limiting effect on the lock tongue, at the moment, the lock tongue can be optionally retracted into the lock shell, and in an emergency, a user pulls or pushes the door plate, so that the escape lock can be rapidly opened, and a safety guarantee is provided for personnel evacuation.

According to some embodiments of the utility model, the locking lever comprises an adsorption part, a hinge part and a limit part which are connected in sequence, wherein the adsorption part is used for being adsorbed by the electromagnet, the hinge part is rotationally connected with the lock shell through a rotating shaft, and the end part of the limit part can be abutted against the touch lever.

According to some embodiments of the utility model, the electromagnet is disposed on one side of the lock case close to the through hole and below the lock tongue, the hinge part is disposed on the other side of the lock case away from the through hole, and the length of the adsorption part is at least 3 times that of the limit part.

According to some embodiments of the utility model, the suction portion is disposed in an arc from the hinge portion toward the electromagnet.

According to some embodiments of the utility model, the limiting jaw comprises a locking block, guide blocks are hinged to two sides of the locking block, each guide block is hinged to a limiting block, and the accommodating groove is formed between two limiting blocks.

According to some embodiments of the utility model, the locking block is rotatably connected to the lock housing, the touch rod is fixedly connected with the locking block, the touch rod slides towards the bottom of the lock housing, the locking block rotates to drive the guide block to rotate, and the limiting block rotates to enlarge the opening.

According to some embodiments of the utility model, an end of the limiting block facing the side of the lock tongue is provided with a first guide bearing.

According to some embodiments of the utility model, the end of the locking lever on the side close to the trigger lever is provided with a second guide bearing.

According to some embodiments of the utility model, the locking tongue comprises a first tongue and a second tongue hinged to each other, the inclined surfaces of the first tongue and the inclined surfaces of the second tongue being located on opposite sides to each other.

According to some embodiments of the utility model, the lock case is further provided with an access controller and a door position sensor to obtain a door panel position signal, and the door position sensor and the electromagnet are electrically connected with the access controller.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of an electromechanical escape lock according to an embodiment of the present utility model.

Reference numerals include a lock case 100, a through hole 101, a lock tongue 200, a first latch 210, a second latch 220, a limit claw 300, a lock block 310, a guide block 320, a limit hole 330, a first guide bearing 331, a receiving groove 340, a lock assembly 400, an electromagnet 410, a lock lever 420, an adsorption portion 421, a hinge portion 422, a rotation shaft 4221, a limit plate 423, a second guide bearing 4231, a touch lever 500, an entrance guard controller 600, and a door position sensor 700.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme. In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, the present utility model provides an electromechanical escape lock, which comprises a lock case 100, a lock tongue 200, a limiting jaw 300, a touch rod 500 and a locking assembly 400, wherein a through hole 101 is arranged at the side of the lock case 100. The lock tongue 200 is slidably connected to the lock case 100 and located at the through hole 101, the limiting claw 300 is connected to the lock case 100 and is disposed adjacent to the lock tongue 200, the limiting claw 300 is located at one side of the lock tongue 200 away from the opening, the limiting claw is provided with a containing groove 340 for containing the retraction of the lock tongue 200, one side of the containing groove 340 close to the lock tongue 200 is an opening, and the distance between the openings is smaller than the width of the lock tongue 200 in order to limit the retraction of the lock tongue 200. The touch lever 500 is slidably connected to the lock case 100, the touch lever 500 is hinged to the limiting jaw 300, the touch lever 500 moves to drive the opening interval to increase, and the lock tongue 200 can retract into the accommodating groove 340. The locking assembly 400 includes an electromagnet 410 and a locking lever 420, the electromagnet 410 is connected to the lock case 100, the locking lever 420 is rotatably connected to the lock case 100, the electromagnet 410 is used for absorbing the side portion of the locking lever 420, when the locking lever 420 is absorbed, the end portion of the locking lever 420 abuts against the movable lever 500 to limit the movement of the touch lever 500, and a safety return spring is further provided between the locking lever 420 and the lock case 100.

In a specific embodiment, the lock case 100 is used as a main structure of the whole escape lock, a through hole 101 is arranged at a side part of the lock case 100 for installing the lock tongue 200, and the lock tongue 200 is slidably connected to the lock case 100 and is used for being matched with a fixed structure such as a door frame to realize a locking function. In an emergency, the latch bolt 200 needs to be able to retract the lock case 100 rapidly in order to open the escape passage, and the limit pawl 300 is connected to the lock case 100 and disposed adjacent to the latch bolt 200. The limiting jaw 300 is located at one side of the lock tongue 200 away from the opening, and is provided with a containing groove 340 for containing the lock tongue 200 to retract. The receiving groove 340 is provided with an opening at a side close to the lock tongue 200, and the distance between the openings is smaller than the width of the lock tongue 200 in order to limit the lock tongue 200 to retract into the lock case 100. Thus, under normal conditions, the lock tongue 200 is firmly clamped by the limiting jaw 300 and cannot be retracted at will, the touch rod 500 is hinged with the limiting jaw 300, and when the touch rod 500 moves, the opening interval of the limiting jaw 300 can be driven to be increased, so that the lock tongue 200 can be retracted into the accommodating groove 340. The provision of the trigger lever 500 provides an operating mechanism for retraction of the locking bolt 200.

In the locking assembly 400, the electromagnet 410 is connected to the lock case 100, and the locking lever 420 is rotatably connected to the lock case 100. The electromagnet 410 is used to attract the side of the locking lever 420, and when the electromagnet 410 is energized, the locking lever 420 is attracted and rotated, and the end thereof abuts against the touch lever 500, thereby restricting the movement of the touch lever 500 and indirectly restricting the retraction of the lock tongue 200 into the lock case 100. Thus, under normal conditions, the electromagnet 410 remains energized, and the locking lever 420 firmly locks the trigger lever 500, ensuring that the locking bolt 200 cannot be retracted. In an emergency, the locking lever 420 releases the trigger lever 500 by simply turning off the power to the electromagnet 410, allowing the locking bolt 200 to retract into the lock housing 100. Further, a safety return spring is provided between the locking lever 420 and the lock case 100, so that the locking lever 420 can be still supported to maintain a posture of contacting the movable lever 500 in the absence of power to the electromagnet 410, and the mechanical movement of the latch tongue that can be depressed can be restored although the locking effect is low.

It can be understood that the electromechanical escape lock provided by the utility model is unlocked by the electromagnet 410 being powered off, the limiting claw 300 loses the limiting function on the lock tongue 200, at the moment, the lock tongue 200 can be optionally retracted into the lock case 100, in case of emergency, a user pulls or pushes the door panel, the escape lock can be rapidly opened, and safety guarantee is provided for personnel evacuation.

It should be noted that, in this embodiment, a spring or torsion spring is disposed at the limiting jaw 300, so that the lock tongue 200 is not in a long-time retracted state in the unlocked state, and the lock tongue 200 still pops up, specifically, the spring or torsion spring is fixed at the limiting jaw 300, and the other side is fixed at the lock tongue 200.

Referring to fig. 1, specifically, the locking lever 420 is composed of an adsorption portion 421, a hinge portion 422, and a limiting portion, and the three portions cooperate to achieve locking and unlocking functions, wherein the adsorption portion 421 is used for being tightly matched with the electromagnet 410, and when the electromagnet 410 is energized, it generates a strong magnetic force to attract the adsorption portion 421 and tightly fit it. This design ensures stability of the locking lever 420 in the energized state. The hinge 422 is coupled to the lock housing 100 by a rotation shaft 4221, allowing the locking lever 420 to freely rotate within a certain range. This design enables the locking lever 420 to flexibly rotate according to the attractive force of the electromagnet 410, thereby achieving switching between locking and unlocking. The end of the limiting part is used for abutting against the movable rod 500. When the locking lever 420 is attracted by the electromagnet 410 and rotated to a specific position, the limiting portion will tightly abut against the touch lever 500 to prevent movement thereof. In this way, the locking bolt 200 is securely locked within the lock housing 100.

Further, the electromagnet 410 is disposed at a side of the lock case 100 near the through hole 101 and below the latch bolt 200, which not only saves space, but also ensures optimal magnetic force transmission between the electromagnet 410 and the adsorption portion 421. Meanwhile, the length of the adsorption part 421 is at least 3 times that of the limiting part, which increases the contact area of the electromagnet 410 and the adsorption part 421, and enhances the attractive force to the adsorption part 421, thereby improving the stability of the locking lever 420. The adsorption portion 421 is disposed in a radian from the hinge portion 422 toward the electromagnet 410, so that the adsorption portion 421 can rotate more smoothly when attracted by the electromagnet 410, and friction and resistance are reduced. This optimization not only increases the response speed of the locking lever 420, but also increases its useful life.

Referring to fig. 1, it should be noted that, in a specific embodiment, the limiting jaw 300 is composed of a locking block 310, a guiding block 320 and a limiting block, and the three cooperate together to realize locking and unlocking functions of the lock tongue 200. The locking block 310 is rotatably connected to the lock case 100, and is a core component of the limit pawl 300. It is fixedly connected with the touch rod 500, so that the transmission and control of the motion of the touch rod 500 are realized. The guide blocks 320 are hinged to both sides of the locking block 310 for guiding the movement of the stopper. When the locking block 310 rotates, it drives the guide block 320 to rotate together, thereby changing the position and posture of the stopper. The stopper is hinged to the guide block 320, and a receiving groove 340 is formed therebetween for receiving the locking bolt 200. When the stopper rotates, the opening of the receiving groove 340 increases or decreases, thereby allowing or preventing the retraction of the latch bolt 200.

Further, in order to improve the sliding efficiency between the stopper and the lock tongue 200, the first guide bearing 331 is disposed at the end of the stopper facing the lock tongue 200, so that friction and abrasion between the stopper and the lock tongue 200 are reduced, and the lock tongue 200 can retract and extend more smoothly.

Optionally, the end of the locking lever 420 near the side of the touch lever 500 is provided with a second guide bearing 4231, which not only reduces friction and resistance between the locking lever 420 and the touch lever 500, but also improves rotation efficiency and stability of the locking lever 420. The coefficient of friction and wear rate may be further reduced by optimizing the material and dimensions of the second guide bearing 4231, thereby extending the service life of the locking lever 420 and the trigger lever 500. Further alternatively, referring to the embodiment shown in fig. 1, bearings may be provided at both ends of the stopper, both ends of the guide block 320, and the end of the touch lever 500 to reduce friction and wear during operation of the machine and to reduce noise.

Note that, the latch bolt 200 is composed of a first latch bolt 210 and a second latch bolt 220 hinged to each other, and inclined surfaces of the first latch bolt 210 and the second latch bolt 220 are located at opposite sides. The structure setting of two-way latch is used for closing the door back automatic fixation door position, can realize opening about not dividing, has guaranteed that latch structure need not be according to the left and right customization latch direction of opening the door direction, also need not adjust the lock body when installing, simple structure, simple to operate.

Referring to fig. 1, in some embodiments, the lock case 100 is further provided with a door controller 600 and a door position sensor 700, and the door controller 600 is a core component of the entire system, responsible for receiving a signal of the door position sensor 700 and controlling an energization state of the electromagnet 410. The door position sensor 700 is used for monitoring the position state of the door panel in real time and feeding back a signal to the door controller 600. When the escape lock works, the lock tongue 200 is not locked when the door is not closed, so that the phenomenon that the door cannot be closed is prevented. And signals the door access controller 600 via the door position sensor 700 to indicate the door closed condition.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. An electromechanical escape lock, comprising:

A lock shell, the side part of which is provided with a through hole;

The lock tongue is connected with the lock shell in a sliding way and is positioned at the through hole;

The limiting claw is connected to the lock shell and is arranged adjacent to the lock tongue, the limiting claw is positioned on one side of the lock tongue, which is away from the through hole, and is provided with a containing groove for containing the lock tongue to retract, one side of the containing groove, which is close to the lock tongue, is provided with an opening, and the spacing between the openings is smaller than the width of the lock tongue in a normal state so as to limit the lock tongue to retract into the lock shell;

The touch rod is connected to the lock shell in a sliding way, the touch rod is hinged with the limiting clamping jaw, the touch rod moves to drive the distance between the openings to be increased, and the lock tongue can retract into the accommodating groove;

The locking assembly comprises an electromagnet and a locking rod, wherein the electromagnet is connected with the lock shell, the locking rod is rotationally connected with the lock shell, the electromagnet is used for absorbing the side part of the locking rod, when the locking rod is absorbed, the end part of the locking rod is abutted against the touch rod so as to limit the movement of the touch rod and limit the locking bolt to retract into the lock shell, and a safety reset spring is further arranged between the locking rod and the lock shell.

2. The electromechanical escape lock according to claim 1, wherein the locking lever includes an adsorption portion, a hinge portion and a limit portion which are sequentially connected, the adsorption portion is configured to be adsorbed by the electromagnet, the hinge portion is rotatably connected to the lock housing through a rotation shaft, and an end portion of the limit portion can abut against the touch lever.

3. An electromechanical escape lock according to claim 2, wherein the electromagnet is disposed on one side of the lock housing adjacent to the through hole and below the lock tongue, the hinge portion is disposed on the other side of the lock housing away from the through hole, and the length of the adsorption portion is at least 3 times that of the limit portion.

4. An electromechanical escape lock according to claim 3, wherein the adsorption portion is disposed in an arc from the hinge portion toward the electromagnet.

5. The electromechanical escape lock according to claim 1, wherein the limiting claw comprises a locking block, guide blocks are hinged to two sides of the locking block, each guide block is hinged to a limiting block, and the accommodating groove is formed between two limiting blocks.

6. An electromechanical escape lock according to claim 5, wherein the locking block is rotatably connected to the lock housing, the touch lever is fixedly connected to the locking block, the touch lever slides towards the bottom of the lock housing, the locking block rotates to drive the guide block to rotate, and the limiting block rotates to enlarge the opening.

7. An electromechanical escape lock according to claim 6, wherein an end of the stopper facing the side of the locking bolt is provided with a first guide bearing.

8. An electromechanical escape lock according to claim 1, wherein an end of the locking lever on a side close to the actuating lever is provided with a second guide bearing.

9. An electromechanical escape lock according to claim 1, wherein the locking bolt includes a first tongue and a second tongue hinged to each other, the inclined surfaces of the first tongue and the second tongue being located on opposite sides to each other.

10. The electromechanical escape lock of claim 1, wherein the lock housing is further provided with an access control controller and a door position sensor to obtain a door panel position signal, the door position sensor and the electromagnet being electrically connected to the access control controller.