Escape door lock

Abstract

The application discloses an escape door lock, which comprises a main lock body, a top-and-bottom lock and an unlocking device, lock latches are arranged on the main lock body and the top-and-bottom lock respectively, the unlocking device is connected with the main lock body, a transmission rod is arranged between the main lock body and the top-and-bottom lock, lock core rotating members are arranged in the main lock body and the top-and-bottom lock respectively, the lock core rotating members can rotate around an axis in the up-and-down direction, the lock latches are arranged on one side of the lock core rotating members, the unlocking device abuts against the other side of the lock core rotating members, protruding rods are arranged at the upper end and the lower end of the lock core rotating members respectively, the end of the transmission rod is provided with a through hole, the protruding rods are inserted into the transmission rod through the through hole, when the unlocking device is triggered, the lock core rotating member in the main lock body rotates, the lock core rotating member in the main lock body drives the lock core rotating member of the top-and-bottom lock to rotate through the transmission rod, and the lock latches are synchronously retracted. The escape door lock of the embodiment realizes transmission through rotation, reduces the number of action conversion, simplifies the lock core and the transmission structure, reduces parts, lowers the manufacturing cost, and effectively improves the product competitiveness.

Description

Technical Field

[0001] This invention relates to the field of escape locks, and particularly to an escape door lock. Background Technology

[0002] Escape locks, also known as fire escape locks, are mainly used on the doors of emergency exits in public places with high traffic, such as large supermarkets, shopping malls, office buildings, hospitals, schools, and factories. They serve to prevent unauthorized personnel from entering the premises while allowing occupants to escape safely in emergencies such as fires.

[0003] Existing escape door locks generally consist of a main lock body, a top and bottom lock, and an unlocking device. The unlocking device is connected to the main lock body, and the lock cylinder of the main lock body is connected to the top and bottom locks via a lever. When a person triggers the unlocking device, the lock cylinder of the main lock body moves to unlock, and at the same time, the lever drives the top and bottom locks to move, achieving synchronous unlocking.

[0004] However, the existing main lock body and the top and bottom lock are mainly linked by a pull rod. The pull rod is driven by moving up and down. That is, the main lock body needs to first convert the action of the unlocking device into up and down movement, and then drive the pull rod to drive the lock cylinder of the top and bottom lock. This transmission structure requires multiple conversions of action, requires many parts, has a complex structure, and has high manufacturing cost and difficulty, which is not conducive to market competitiveness.

[0005] Therefore, it is necessary to improve the lock cylinder and transmission structure between the main lock body and the top and bottom locks. Summary of the Invention

[0006] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an escape door lock in which the rotating part of the lock cylinder and the transmission rod achieve transmission through rotation, reducing the number of action transitions, simplifying the lock cylinder and transmission structure, and improving competitiveness.

[0007] An escape door lock according to a first aspect of the present invention includes a main lock body, a multi-lock mechanism, and an unlocking device. The main lock body and the multi-lock mechanism are each provided with a bolt. The unlocking device is connected to the main lock body, and when activated, it unlocks the main lock body.

[0008] A transmission rod is provided between the main lock body and the top and bottom locks.

[0009] The main lock body and the top and bottom locks are each equipped with a lock cylinder rotating component, which can rotate around a vertical axis. The lock tongue is movably disposed on one side of the lock cylinder rotating component, and the unlocking device abuts against the other side of the lock cylinder rotating component in the main lock body. The upper and lower ends of the lock cylinder rotating component are respectively provided with protruding rods, and the end of the transmission rod is provided with a through hole that mates with the protruding rods. The protruding rods are inserted into the transmission rod through the through hole.

[0010] When the unlocking device is triggered, it applies pressure to the rotating cylinder of the main lock body, causing the rotating cylinder in the main lock body to rotate. The rotating cylinder in the main lock body drives the rotating cylinder of the top and bottom lock to rotate synchronously through the transmission rod, thereby causing the bolt to retract synchronously.

[0011] An escape door lock according to an embodiment of the present invention has at least the following beneficial effects: The escape door lock of this embodiment is provided with a lock cylinder rotating component and a transmission rod. The lock cylinder rotating component can rotate around an axis in the vertical direction. The transmission rod is inserted into both ends of the lock cylinder rotating component and is driven to rotate by the lock cylinder rotating component, thereby realizing transmission through rotation. When the unlocking device is triggered, the lock cylinder rotating component in the main lock body rotates, which drives the bolt of the main lock body to move simultaneously. At the same time, the transmission rod drives the lock cylinder rotating component of the top and bottom lock to rotate synchronously, realizing the synchronous retraction of multiple bolts. Transmission through rotation reduces the number of action transitions, simplifies the lock cylinder and transmission structure, reduces parts, lowers manufacturing costs, and effectively improves product competitiveness.

[0012] According to some embodiments of the first aspect of the present invention, the main lock body and the top and bottom locks are respectively provided with inner supports, the lock tongue is rotatably disposed on the inner supports, and when the lock cylinder rotating member is driven to rotate by the unlocking device, the lock cylinder rotating member pushes the lock tongue, causing the lock tongue to rotate and retract.

[0013] According to some embodiments of the first aspect of the present invention, at least one of the lock cylinder rotating members is provided with an elastic member for resetting the lock tongue and the lock cylinder rotating member.

[0014] According to some embodiments of the first aspect of the present invention, the elastic element is a torsion spring.

[0015] According to some embodiments of the first aspect of the present invention, at least one of the lock tongues is movably provided with a lock tongue latch, and a locking protrusion that cooperates with the lock tongue latch is provided on the lock cylinder rotating member corresponding to the lock body;

[0016] When the latch is pressed down, it engages with the locking protrusion to lock the latch. When the lock cylinder rotating component is rotated by the unlocking device, the locking protrusion activates and releases the latch from its locked state.

[0017] According to some embodiments of the first aspect of the present invention, the protruding rod is polygonal, and the through hole of the transmission rod is configured as a polygonal hole corresponding to the protruding rod;

[0018] Alternatively, the convex rod may be provided with raised patterns, and the through hole of the transmission rod may be provided with a groove that matches the raised patterns.

[0019] According to some embodiments of the first aspect of the present invention, the unlocking device is a push-type unlocking device.

[0020] According to some embodiments of the first aspect of the present invention, a push-type unlocking device is movably mounted on a push-type cover, and a push-type transmission member is provided at one end of the push-type cover, the push-type transmission member abutting against the lock cylinder rotating member.

[0021] According to some embodiments of the first aspect of the present invention, the unlocking device is a push-down unlocking device.

[0022] According to some embodiments of the first aspect of the present invention, the push-down unlocking device includes a pressure handle and a rotating handle, the pressure handle being rotatably disposed via the rotating handle, and the main lock body being provided with a rotating transmission member for triggering the action of the lock cylinder rotating member, wherein one of the rotating handles is connected to the rotating transmission member and drives the rotating transmission member to rotate.

[0023] Additional aspects and advantages of the invention 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 invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of the escape door lock according to the first embodiment of the present invention.

[0026] Figure 2 yes Figure 1 The connection structure between the central unlocking device and the main lock body.

[0027] Figure 3 yes Figure 1 A schematic diagram showing the connection between the central lock body and the top and bottom locks.

[0028] Figure 4 yes Figure 2 An exploded view of the lock cylinder rotating parts and the lock tongue of the main lock body.

[0029] Figure 5 This is a schematic diagram of the structure of the escape door lock according to the second embodiment of the present invention.

[0030] Figure label:

[0031] Main lock body 100, bolt 110, bolt latch 111, lock cylinder rotating part 120, protruding rod 121, torsion spring 122, locking protrusion 123, rotating transmission part 130, top and bottom lock 200, flat push type unlocking device 300, flat push cover 310, flat push transmission part 320, transmission rod 400, through hole 410, downward pressure type unlocking device 500, rotating handle 510. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0034] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0036] The following is combined Figures 1 to 5 The detailed embodiments provided analyze the escape door lock of the present invention.

[0037] Reference Figures 1 to 4 , Figures 1 to 4 The diagram shown is a schematic representation of an escape door lock according to the first embodiment provided in this application.

[0038] like Figure 1 As shown, the escape door lock includes a main lock body 100, a top and bottom lock 200, a transmission rod 400, and a push-type unlocking device 300, with the push-type unlocking device 300 connected to the main lock body 100.

[0039] Specifically, in this embodiment, the main lock body 100 and the top and bottom lock 200 are respectively provided with a bolt 110. Normally, the bolt 110 extends and cooperates with the bolt hole in the door frame to lock the escape door. When the push-type unlocking device 300 is triggered, the bolt 110 retracts and the escape door can be opened.

[0040] Reference Figure 2 and Figure 3 The main lock body 100 and the top and bottom locks 200 are connected and linked by a transmission rod 400. Specifically, the main lock body 100 and the top and bottom locks 200 are respectively provided with lock cylinder rotating parts 120. The lock cylinder rotating parts 120 can rotate around the vertical axis. The upper and lower ends of the lock cylinder rotating parts 120 are respectively provided with protruding rods 121. The transmission rod 400 is provided with through holes 410 that cooperate with the protruding rods 121. The protruding rods 121 are inserted into the transmission rod 400 through the through holes 410. When either the lock cylinder rotating parts 120 or the transmission rod 400 rotates, it drives the other to rotate synchronously and can continue to transmit the rotational action downwards. Therefore, when multiple lock cylinder rotating parts 120 and transmission rods 400 are connected in series, synchronous rotation can be achieved. In this embodiment, when the push-type unlocking device 300 is triggered, the push-type unlocking device 300 applies pressure to the lock cylinder rotating member 120 of the main lock body 100. The lock cylinder rotating member 120 in the main lock body 100 rotates, and drives the transmission rod 400 to rotate through the protruding rod 121. The rotation of the transmission rod 400 drives the lock cylinder of the top and bottom locks 200 to move, realizing the synchronous movement between the main lock body 100 and the top and bottom locks 200.

[0041] Furthermore, the protruding rod 121 can be polygonal, and the through hole 410 of the transmission rod 400 can be a polygonal hole corresponding to the protruding rod 121. The cooperation between the two can better achieve rotational transmission. Alternatively, the protruding rod 121 can be provided with raised patterns, and the inner wall of the through hole 410 of the transmission rod 400 can be provided with corresponding grooves to increase the rotational friction between the two, thereby achieving better rotational transmission. It should be understood that the protruding rod 121 and the through hole 410 in this application are not limited to the above two connection structures. In other embodiments, other structural methods can be used between the protruding rod 121 and the through hole 410 to achieve rotational transmission.

[0042] Furthermore, such as Figure 2As shown, the unlocking device in this embodiment is a push-type unlocking device 300. A push-type cover 310 is movably mounted on the push-type unlocking device 300. The push-type cover 310 is designed to be easily pushed and translated by a force directed towards the escape door. One end of the push-type cover 310 is connected to a push-drive component 320. When the push-type cover 310 is pushed and translated, the push-type cover 310 drives the push-drive component 320 to move. The push-drive component 320 of the push-type unlocking device 300 is used to trigger the lock cylinder of the main lock body 100. Specifically, the bolt 110 is located on one side of the lock cylinder rotating member 120, and the push transmission member 320 of the push-type unlocking device 300 abuts against the other side of the lock cylinder rotating member 120 of the main lock body 100. When the push cover 310 of the push-type unlocking device 300 is pushed, the push transmission member 320 of the push-type unlocking device 300 moves and applies pressure to the lock cylinder rotating member 120, causing the lock cylinder rotating member 120 of the main lock body 100 to rotate, thereby driving the bolt 110 to retract.

[0043] Furthermore, the main lock body 100 and the top and bottom locks 200 are respectively provided with internal supports (not shown in the figure). The bolt 110 is rotatably mounted on the internal support. When the lock cylinder rotating component 120 is driven to rotate by the flat-push unlocking device 300, the lock cylinder rotating component 120 pushes the bolt 110, causing the bolt 110 to rotate and retract. Figure 2 and Figure 4 As shown, at least one lock cylinder rotating member 120 is provided with an elastic element for resetting the bolt 110 and the lock cylinder rotating member 120. Preferably, this elastic element is provided on the lock cylinder rotating member 120 of the main lock body 100, and the elastic element is preferably a torsion spring 122. When the unlocking force applied by the person disappears, the lock cylinder rotating member 120 of the main lock body 100 resets under the action of the torsion spring 122. The resetting action of the lock cylinder rotating member 120 drives the lock cylinder rotating member 120 of the top and bottom lock 200 to reset synchronously through the transmission rod 400, so that the bolt 110 re-extends, ensuring that the escape door can be normally locked under normal circumstances.

[0044] Furthermore, to ensure the sliding cover 310 can reset after being pushed (to guarantee normal subsequent use), the sliding unlocking device 300 is also equipped with one or more buffer reset components. The buffer reset components apply a pushing force to the sliding cover 310, causing it to extend outward. When the sliding cover 310 is pushed by a person, the buffer reset components can buffer the impact and prevent the sliding cover 310 from colliding violently. When the pushing force applied by the person disappears, the sliding cover 310 resets under the action of the buffer reset components, ensuring normal subsequent use.

[0045] Furthermore, such as Figure 4As shown, at least one latch 110 is movably provided with a latch buckle 111, which is hinged to the rear of the latch 110 via a hinge shaft. Correspondingly, the lock cylinder rotating member 120 is provided with a locking protrusion 123 that cooperates with the latch buckle 111. The locking protrusion 123 is integrally provided on the lock cylinder rotating member 120 and rotates with the lock cylinder rotating member 120. When the latch buckle 111 is pressed down, the latch buckle 111 and the locking protrusion 123 are locked together, locking the state of the latch 110. When the lock cylinder rotating member 120 is driven to rotate by the push-type unlocking device 300, the locking protrusion 120 is activated and releases the locked state of the latch 110. The latch buckle 111 and the locking protrusion 123 in this embodiment have a simple structure, requiring only two parts to achieve the locking of the state of the latch 110, further simplifying the structure of the escape lock and reducing the manufacturing cost of the escape lock.

[0046] Reference Figure 5 , Figure 5 The diagram shown is a second embodiment of the escape door lock provided in this application. Figure 5 As shown, the escape door lock includes a main lock body 100, a top and bottom lock 200, a transmission rod 400, and a push-down unlocking device 500, which is connected to the main lock body 100.

[0047] Similar to the first embodiment, in this embodiment, the main lock body 100 and the top and bottom locks 200 are connected and linked by a transmission rod 400. Both the main lock body 100 and the top and bottom locks 200 are equipped with a latch 110. Normally, the latch 110 extends and engages with the latch hole in the door frame to lock the escape door. When the push-to-open device 500 is triggered, the latch 110 retracts, allowing the escape door to open.

[0048] Reference Figure 5The push-down unlocking device 500 of this embodiment includes a push handle and a rotating handle 510. The push handle is rotatably mounted via the rotating handle 510. By applying downward pressure to the push handle, it can be easily rotated to unlock the escape door. One rotating handle 510 of the push-down unlocking device 500 is connected to a rotating transmission component 130 inside the main lock body 100. A lock cylinder rotating component 120 is provided inside the main lock body 100. The lock cylinder rotating component 120 can rotate around an axis in the vertical direction. The bolt 110 is located on one side of the lock cylinder rotating component 120, and the rotating transmission component 130 abuts against the other side of the lock cylinder rotating component 120. When the push handle is subjected to downward pressure, the push handle drives the rotating handle 510 to move. The rotating handle 510 drives the rotating transmission component 130 to rotate. The rotating transmission component 130 applies pressure to the lock cylinder rotating component 120, causing the lock cylinder rotating component 120 to rotate, thereby causing the bolt 110 to retract. Similar to the first embodiment, in order to simultaneously drive the bolt 110 of the top and bottom lock 200, the upper and lower ends of the lock cylinder rotating member 120 of the main lock body 100 are also provided with protruding rods 121. The transmission rod 400 is provided with through holes 410 that cooperate with the protruding rods 121. The protruding rods 121 are inserted into the transmission rod 400 through the through holes 410. When the lock cylinder rotating member 120 rotates, the protruding rods 121 drive the transmission rod 400 to rotate. The rotation of the transmission rod 400 drives the lock cylinder of the top and bottom lock 200 to move, thereby causing the bolt 110 of the top and bottom lock 200 to retract as well, achieving linkage. Furthermore, in order to ensure that the first pressing unlocking device 600 can be smoothly reset after it is activated, a reset torsion spring is provided on the rotating transmission member 130. When the downward pressure applied to the handle disappears, the reset torsion spring drives the rotating transmission member 130 to reset, thereby resetting the rotating handle 510 and the handle.

[0049] In summary, the escape door lock of this application includes a lock cylinder rotating component 120 and a transmission rod 400. The lock cylinder rotating component 120 can rotate around its vertical axis, and the transmission rod 400 is inserted into both ends of the lock cylinder rotating component 120, which drives the rotation, thus achieving transmission. When the unlocking device is triggered, the lock cylinder rotating component 120 in the main lock body 100 rotates, simultaneously causing the bolt 110 of the main lock body 100 to move. At the same time, the transmission rod 400 drives the lock cylinder rotating component 120 of the top and bottom lock 200 to rotate synchronously, achieving synchronous retraction of multiple bolts 110. The escape lock of this application achieves transmission through rotation, reducing the number of action transitions, simplifying the lock cylinder and transmission structure, reducing parts, lowering manufacturing costs, and effectively improving product competitiveness.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An escape door lock, comprising a main lock body, a locking mechanism, and an unlocking device, wherein the main lock body and the locking mechanism are each provided with a bolt, and the unlocking device is connected to the main lock body, wherein the unlocking device, when activated, causes the main lock body to unlock, characterized in that: A transmission rod is provided between the main lock body and the top and bottom locks. The main lock body and the top and bottom locks are respectively provided with lock cylinder rotating parts. The lock cylinder rotating parts can rotate around the vertical axis. The lock tongue is movably disposed on one side of the lock cylinder rotating parts. The unlocking device abuts against the other side of the lock cylinder rotating parts in the main lock body. The upper and lower ends of the lock cylinder rotating parts are respectively provided with protruding rods. The end of the transmission rod is provided with a through hole that cooperates with the protruding rod. The protruding rod is inserted into the transmission rod through the through hole. When either the lock cylinder rotating parts or the transmission rod rotates, it drives the other to rotate synchronously. The protruding rod is polygonal, and the through hole of the transmission rod is configured as a polygonal hole corresponding to the protruding rod; or the protruding rod is provided with raised patterns, and the through hole of the transmission rod is provided with mutually cooperating grooves corresponding to the raised patterns; when the unlocking device is triggered, the unlocking device applies pressure to the lock cylinder rotating component of the main lock body, the lock cylinder rotating component in the main lock body rotates, and the lock cylinder rotating component in the main lock body drives the lock cylinder rotating component of the top and bottom lock to rotate synchronously through the transmission rod, thereby driving the bolt to retract synchronously.

2. The escape door lock according to claim 1, characterized in that, The main lock body and the top and bottom locks are respectively provided with inner brackets. The lock tongue is rotatably mounted on the inner brackets. When the lock cylinder rotating component is driven to rotate by the unlocking device, the lock cylinder rotating component pushes the lock tongue, causing the lock tongue to rotate and retract.

3. The escape door lock according to claim 1 or 2, characterized in that, At least one of the lock cylinder rotating parts is provided with an elastic element for resetting the lock tongue and the lock cylinder rotating part.

4. The escape door lock according to claim 3, characterized in that, The elastic element is a torsion spring.

5. The escape door lock according to claim 1 or 2, characterized in that, At least one of the lock tongues is movably provided with a lock tongue latch, and the corresponding lock cylinder rotating part on the lock body is provided with a locking protrusion that cooperates with the lock tongue latch; When the latch is pressed down, it engages with the locking protrusion to lock the latch. When the lock cylinder rotating component is rotated by the unlocking device, the locking protrusion activates and releases the latch from its locked state.

6. The escape door lock according to claim 1, characterized in that, The unlocking device is a push-type unlocking device.

7. The escape door lock according to claim 6, characterized in that, A push-type unlocking device is movably mounted with a push-type cover, and a push-type transmission component is provided at one end of the push-type cover. The push-type transmission component abuts against the rotating component of the lock cylinder.

8. The escape door lock according to claim 1, characterized in that, The unlocking device is a pressure-type unlocking device.

9. The escape door lock according to claim 8, characterized in that, The pressure-type unlocking device includes a pressure handle and a rotating handle. The pressure handle is rotatably set via the rotating handle. The main lock body is provided with a rotating transmission component for triggering the action of the lock cylinder rotating component. One of the rotating handles is connected to the rotating transmission component and drives the rotating transmission component to rotate.

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