Escape door lock

Abstract

The present invention discloses an escape door lock, comprising: a lock body, provided with a lock tongue and a transmission block, the transmission block drives the lock tongue to move; a driving component, comprising a first driving component and a horizontally arranged rotating shaft, the first driving component drives the rotating shaft to rotate; a locking component, comprising a second driving component and a limiting component, the second driving component drives the limiting component to move, so that the limiting component is engaged with the transmission block; wherein a spiral track is arranged around the outer periphery of the rotating shaft, the transmission block is provided with a connecting part, the connecting part abuts against the spiral track, when the rotating shaft rotates, the connecting part can slide along the spiral track to drive the transmission block to reciprocate in the horizontal direction. The lock tongue retracts quickly and smoothly, and can be kept in the retracted position after retraction, and can quickly open the escape passage in an emergency, reducing the unlocking time and helping users to gain an escape opportunity.

Description

Technical Field

[0001] The invention relates to the technical field of fire safety equipment, and in particular to an escape door lock. Background Art

[0002] At present, the escape door locks are mainly installed in crowded places such as large shopping malls. When the escape lock is opened from the inside of the door, it is necessary to manually press the switch to open the door lock. In an emergency, it is necessary to open the escape door lock and then push the door to escape. The escape process consumes a lot of time, which is easy to delay the escape opportunity and is not conducive to the user to gain escape time. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least some extent. To this end, the present invention provides an escape door lock, which controls the movement of a lock tongue through a first driving member, and the lock tongue is quickly and smoothly recovered, so that an escape passage can be quickly opened.

[0004] According to a first aspect of an embodiment of the present invention, an escape door lock is provided, comprising: a lock body, provided with a lock tongue and a transmission block, the transmission block drives the lock tongue to move; a driving component, comprising a first driving component and a horizontally arranged rotating shaft, the first driving component drives the rotating shaft to rotate; a locking component, comprising a second driving component and a limiting component, the second driving component drives the limiting component to move so that the limiting component is engaged with the transmission block; wherein a spiral track is arranged around the outer circumference of the rotating shaft, and a connecting part is arranged on the transmission block, the connecting part abuts against the spiral track, and when the rotating shaft rotates, the connecting part can slide along the spiral track to drive the transmission block to reciprocate in the horizontal direction.

[0005] The escape door lock of the embodiment of the present invention has at least the following beneficial effects: the first driving member drives the rotating shaft to rotate, the spiral track arranged around the outer circumference of the rotating shaft abuts against the connecting part on the transmission block, the rotating shaft rotates to drive the transmission block to move in the horizontal direction, after the transmission block moves to the retracted position, the second driving member drives the limit member to move, so that the limit member is engaged with the transmission block, the transmission block is locked in the retracted position, and the lock tongue is driven to retract the lock body. The retraction of the lock tongue is driven by the first driving member, and the lock tongue retracts quickly and smoothly, which can reduce the unlocking time in an emergency, quickly open the escape channel, and help users buy time for escape.

[0006] According to some embodiments of the present invention, the transmission block is provided with a roller sleeve, the roller sleeve is rotatably arranged on the connecting portion, and the roller sleeve abuts against the spiral track.

[0007] According to some embodiments of the present invention, the limiting member is hingedly arranged on the lock body, and the second driving member drives one end of the limiting member to rotate around the hinge point to drive the other end of the limiting member to engage with or disengage from the transmission block.

[0008] According to some embodiments of the present invention, the second driving member includes an electromagnetic component and a spring, the spring is arranged between the electromagnetic component and the limiting member, the electromagnetic component is used to drive the limiting member to engage with the transmission block, and the spring is used to drive the limiting member to separate from the transmission block.

[0009] According to some embodiments of the present invention, the driving component further includes a positioning shaft, the positioning shaft is movably disposed on the lock body, and the positioning shaft is coaxially connected to the rotating shaft.

[0010] According to some embodiments of the present invention, the lock body is provided with a connecting rod, the connecting rod is hinged to the transmission block, and the transmission block drives the lock tongue to move through the connecting rod.

[0011] According to some embodiments of the present invention, the lock body is provided with a push handle, a push rod and a connecting plate, the push rod is slidably arranged on the lock body, the connecting plate is rotatably arranged on the lock body, the push handle drives the connecting plate to rotate, the connecting plate drives the push rod to move, the push rod drives the lock tongue to move, and the push rod is connected to the connecting rod.

[0012] According to some embodiments of the present invention, the connecting plate is provided with a torsion spring, and the torsion spring is used to drive the connecting plate to reset.

[0013] According to some embodiments of the present invention, the escape door lock further includes a first switch, the first switch abuts against the rotating shaft, and the first switch is used to control the rotation angle of the rotating shaft.

[0014] According to some embodiments of the present invention, the escape door lock further includes a second switch, and the second switch abuts against the transmission block.

[0015] The foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of an escape door lock according to an embodiment of the present invention;

[0018] Figure 2 is an exploded view of an escape door lock according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 1 A cross-sectional view at AA is shown;

[0020] Figure 4 yes Figure 3 Enlarged view of point B.

[0021] The accompanying figures are as follows:

[0022] The lock body 100, the lock tongue 110, the transmission block 120, the connecting portion 121, the rolling sleeve 122, the connecting rod 130, the push handle 140, the push rod 150, the connecting plate 160, and the torsion spring 170;

[0023] Driving component 200, first driving member 210, rotating shaft 220, spiral track 221, positioning shaft 230;

[0024] A locking component 300, a second driving component 310, an electromagnetic component 311, a spring 312, and a limiting component 320;

[0025] A first switch 410 and a second switch 420 . DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] It is understandable that, referring to Figure 1 and Figure 2The escape door lock of the present invention comprises: a lock body 100, which is provided with a lock tongue 110 and a transmission block 120, and the transmission block 120 drives the lock tongue 110 to move; a driving component 200, which comprises a first driving component 210 and a horizontally arranged rotating shaft 220, and the first driving component 210 drives the rotating shaft 220 to rotate; a locking component 300, which comprises a second driving component 310 and a limiting component 320, and the second driving component 310 drives the limiting component 320 to move so that the limiting component 320 is engaged with the transmission block 120; wherein a spiral track 221 is arranged around the outer periphery of the rotating shaft 220, and a connecting portion 121 is arranged on the transmission block 120, and the connecting portion 121 abuts against the spiral track 221, and when the rotating shaft 220 rotates, the connecting portion 121 can slide along the spiral track 221 to drive the transmission block 120 to reciprocate in the horizontal direction.

[0031] The first driving member 210 drives the rotating shaft 220 to rotate, and the spiral track 221 set on the rotating shaft 220 abuts against the connecting part 121 set on the transmission block 120. When the rotating shaft 220 rotates, the connecting part 121 can slide along the spiral track 221 to drive the transmission block 120 to retract, and the transmission block 120 drives the lock tongue 110 to retract the lock body 100 to open the escape door lock. When the lock tongue 110 is fully retracted, the second driving member 310 drives the limiting member 320 to move so that the limiting member 320 is engaged with the transmission block 120, and the transmission block 120 is locked in the retracted position, thereby locking the lock tongue 110 and keeping the escape door lock open. The retraction of the lock tongue 110 is driven by the first driving member 210. The lock tongue 110 retracts quickly and smoothly. After retracting, the lock tongue 110 can remain in the retracted position, avoiding the failure of unlocking caused by the reset of the lock tongue 110. When an emergency occurs, the escape passage can be quickly opened, reducing the unlocking time and helping the user gain escape time.

[0032] It is understandable that, referring to Figure 2 The transmission block 120 is provided with a roller sleeve 122, which is rotatably arranged on the connection part 121, and the roller sleeve 122 abuts against the spiral track 221. The roller sleeve 122 is rotatably connected to the connection part 121, and the roller sleeve 122 can rotate on the connection part 121. When the rotating shaft 220 rotates, the roller sleeve 122 abuts against the spiral track 221 of the rotating shaft 220. The roller sleeve 122 reduces the friction resistance when the rotating shaft 220 rotates, improves the movement smoothness of the transmission block 120, reduces the noise generated when the rotating shaft 220 drives the transmission block 120 to move, and improves the service life of the rotating shaft 220 and the transmission block 120.

[0033] Specifically, refer to Figure 1 and Figure 2The limiting member 320 is hingedly arranged on the lock body 100, and the second driving member 310 drives one end of the limiting member 320 to rotate around the hinge point to drive the other end of the limiting member 320 to engage or separate with the transmission block 120. When the lock tongue 110 extends, the second driving member 310 drives the limiting member 320 to rotate around the hinge point to separate the limiting member 320 from the transmission block 120, so that the first driving member 210 and the rotating shaft 220 can cooperate to drive the transmission block 120 to move in the horizontal direction, thereby unlocking the lock tongue 110. When the lock tongue 110 retracts, the second driving member 310 drives the limiting member 320 to engage with the transmission block 120, so that the transmission block 120 can be locked in the retracted position, thereby locking the lock tongue 110, and preventing the lock tongue 110 from extending and causing the unlocking to fail.

[0034] Specifically, refer to Figure 1 and Figure 4 The second driving member 310 includes an electromagnetic component 311 and a spring 312. The spring 312 is arranged between the electromagnetic component 311 and the limiting member 320. The electromagnetic component 311 is used to drive the limiting member 320 to engage with the transmission block 120, and the spring 312 is used to drive the limiting member 320 to separate from the transmission block 120. When the electromagnetic component 311 is closed, the spring 312 drives the limiting member 320 to rotate around the hinge point so that the limiting member 320 is separated from the transmission block 120, thereby unlocking the position of the transmission block 120, and then unlocking the position of the lock tongue 110. When the electromagnetic component 311 is opened, the electromagnetic component 311 absorbs the limiting member 320 to drive the limiting member 320 to rotate around the hinge point so that the limiting member 320 is engaged with the transmission block 120, thereby locking the position of the transmission block 120, and then locking the position of the lock tongue 110, preventing the lock tongue 110 from resetting, so that the lock tongue 110 can be stabilized in the retracted position, and the shaking of the lock tongue 110 is reduced.

[0035] It is understandable that, referring to Figure 2 The driving component 200 further includes a positioning shaft 230, which is movably arranged on the lock body 100 and is coaxially connected to the rotating shaft 220. The positioning shaft 230 can rotate on the lock body 100, and the positioning shaft 230 is coaxially connected to the rotating shaft 220, so that the rotating shaft 220 can rotate coaxially with the positioning shaft 230. It should be noted that the spiral track 221 on the rotating shaft 220 will produce an eccentric effect when driving the transmission block 120 to move, and the eccentric effect generated by the spiral track 221 will be directly transmitted to the output shaft of the first driving member 210, so that the output shaft of the first driving member 210 is subjected to additional load, which reduces the service life of the first driving member 210. By arranging the positioning shaft 230 to balance the eccentric effect generated when the rotating shaft 220 rotates, it is avoided that the eccentric effect generated by the rotating shaft 220 is directly transmitted to the output shaft of the first driving member 210, thereby improving the service life of the first driving member 210.

[0036] It is understandable that, referring to Figure 3 and Figure 4 The lock body 100 is provided with a connecting rod 130, which is hinged to the transmission block 120, and the transmission block 120 drives the lock tongue 110 to move through the connecting rod 130. When the lock tongue 110 is retracted, the first driving member 210 drives the rotating shaft 220 to rotate, the rotating shaft 220 drives the transmission block 120 to retract, and the transmission block 120 drives the connecting rod 130 to retract, thereby driving the lock tongue 110 to retract to open the escape door lock. When the lock tongue 110 is extended, the first driving member 210 drives the rotating shaft 220 to rotate, and the rotating shaft 220 abuts against the transmission block 120. When the rotating shaft 220 rotates to the extended position, the transmission block 120 extends, and the transmission block 120 drives the connecting rod 130 to extend, thereby driving the lock tongue 110 to extend and close the escape door lock.

[0037] Specifically, refer to Figure 3 and Figure 4 The lock body 100 is provided with a push handle 140, a push rod 150 and a connecting plate 160. The push rod 150 is slidably arranged on the lock body 100, and the connecting plate 160 is rotatably arranged on the lock body 100. The push handle 140 drives the connecting plate 160 to rotate, and the connecting plate 160 drives the push rod 150 to move, and the push rod 150 drives the lock tongue 110 to move, and the push rod 150 is connected to the connecting rod 130. When the escape door lock is powered off, the limiter 320 is separated from the transmission block 120, and the lock tongue 110 can be driven by pressing the push handle 140. By pressing the push handle 140, the push handle 140 drives the connecting plate 160 to rotate, and the connecting plate 160 drives the push rod 150 to slide in the horizontal direction to drive the lock tongue 110 to retract, thereby realizing mechanical unlocking, and avoiding the failure of the electric device to cause the escape door lock to fail to open, thereby delaying the escape opportunity.

[0038] Specifically, refer to Figures 2 to 4, the connecting plate 160 is provided with a torsion spring 170, and the torsion spring 170 is used to drive the connecting plate 160 to reset. When the push handle 140 is not pressed, the torsion spring 170 provided at the connecting plate 160 drives the connecting plate 160 to reset, so as to drive the push handle 140 to extend, so that the escape door lock remains in a normally closed state, thereby improving the safety of the escape door lock. It should be noted that when the push handle 140 is pressed, the push handle 140 drives the connecting plate 160 to rotate, so that the connecting rod 130 drives the transmission block 120 to retract. At this time, the connecting portion 121 moves in a direction away from the spiral track 221, so that the connecting portion 121 is disengaged from the spiral track 221, so as to perform manual unlocking. When the push handle 140 is reset, the torsion spring 170 drives the connecting plate 160 to reset, so that the connecting rod 130 drives the transmission block 120 to extend. At this time, the connecting part 121 moves toward the direction of the spiral track 221, so that the connecting part 121 abuts against the spiral track 221. At this time, the escape door is in a locked state. The escape door lock can drive the transmission block 120 to move through the driving component 200, and the transmission block 120 drives the lock tongue 110 to retract the lock body 100 to achieve automatic unlocking, or manually press the push handle 140 to drive the connecting plate 160 to rotate, the connecting plate 160 drives the push rod 150 to move, and the push rod 150 drives the lock tongue 110 to retract the lock body 100 to achieve manual unlocking.

[0039] It is understandable that, referring to Figure 2 and Figure 4 The escape door lock further includes a first switch 410, which is in contact with the rotating shaft 220 and is used to control the rotation angle of the rotating shaft 220. The first switch 410 is in contact with the rotating shaft 220 and is connected to the first driving member 210. When the rotating shaft 220 rotates to the retracted position, the first switch 410 is triggered, and the first switch 410 controls the first driving member 210 to stop, so that the rotating shaft 220 stops rotating, thereby controlling the stroke of the transmission block 120 and improving the accuracy of the movement of the transmission block 120.

[0040] It is understandable that, referring to Figure 1 and Figure 2 The escape door lock further includes a second switch 420, which is in contact with the transmission block 120. When the lock tongue 110 retracts, the transmission block 120 moves to the retracted position to trigger the second switch 420. The second switch 420 receives a signal indicating that the lock tongue 110 has completed retraction, so as to detect the opening of the escape door lock and improve the safety of the escape door lock.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Escape door lock, characterized by: include: The lock body is provided with a lock tongue and a transmission block, and the transmission block drives the lock tongue to move; A driving component, comprising a first driving member and a horizontally arranged rotating shaft, wherein the first driving member drives the rotating shaft to rotate; A locking component, comprising a second driving member and a limiting member, wherein the second driving member drives the limiting member to move so that the limiting member is engaged with the transmission block; Among them, a spiral track is arranged around the outer circumference of the rotating shaft, and the transmission block is provided with a connecting part, which abuts against the spiral track. When the rotating shaft rotates, the connecting part can slide along the spiral track to drive the transmission block to reciprocate in the horizontal direction.

2. The escape door lock according to claim 1, characterized in that: The transmission block is provided with a roller sleeve, the roller sleeve is rotatably arranged on the connecting portion, and the roller sleeve abuts against the spiral track.

3. The escape door lock according to claim 2, characterized in that: The limiting member is hingedly arranged on the lock body, and the second driving member drives one end of the limiting member to rotate around the hinge point to drive the other end of the limiting member to engage with or separate from the transmission block.

4. The escape door lock according to claim 3, characterized in that: The second driving member includes an electromagnetic component and a spring. The spring is arranged between the electromagnetic component and the limiting member. The electromagnetic component is used to drive the limiting member to engage with the transmission block, and the spring is used to drive the limiting member to separate from the transmission block.

5. The escape door lock according to claim 1, characterized in that: The driving component also includes a positioning shaft, which is movably arranged on the lock body and is coaxially connected to the rotating shaft.

6. The escape door lock according to claim 1, characterized in that: The lock body is provided with a connecting rod, the connecting rod is hinged to the transmission block, and the transmission block drives the lock tongue to move through the connecting rod.

7. The escape door lock according to claim 6, characterized in that: The lock body is provided with a push handle, a push rod and a connecting plate. The push rod is slidably arranged on the lock body, and the connecting plate is rotatably arranged on the lock body. The push handle drives the connecting plate to rotate, and the connecting plate drives the push rod to move, and the push rod drives the lock tongue to move. The push rod is connected to the connecting rod.

8. The escape door lock according to claim 7, characterized in that: The connecting plate is provided with a torsion spring, and the torsion spring is used for driving the connecting plate to reset.

9. The escape door lock according to claim 1, characterized in that: The escape door lock also includes a first switch, the first switch is in contact with the rotating shaft, and the first switch is used to control the rotation angle of the rotating shaft.

10. The escape door lock according to claim 1, characterized in that: The escape door lock also includes a second switch, and the second switch abuts against the transmission block.

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