A central locking latch and door control system

Abstract

This invention discloses a central locking bolt and door control system, relating to the field of door locks. The central locking bolt includes a bolt box, a locking mechanism, and an unlocking component. The locking mechanism includes a driving component, an upper locking component, a lower locking component, and a linkage component. This invention provides an automatic locking and unlocking scheme through the locking mechanism. The driving component drives the upper or lower locking component to slide within the bolt box. The linkage component links the upper and lower locking components, enabling automatic locking and unlocking. The unlocking component provides a manual unlocking scheme. The user operates a lever to rotate relative to the bolt panel, causing the lever to move a paddle that slides the upper and lower locking components together to unlock the central locking bolt. This invention solves the problem of the electric bolt malfunctioning due to a motor drive failure, preventing the door control system from opening / closing the door, thus improving the reliability and security of the central locking bolt.

Description

Technical Field

[0001] This invention relates to the field of door control locks, specifically to a central locking bolt and door control system. Background Technology

[0002] As people's needs for door control systems change in different usage scenarios, the design of door locks has gradually become more diversified. Doors can be simply classified by the number of door leaves into single doors, double doors, and mother-daughter doors. In a mother-daughter door, one door is wider, called the mother door, and the other is narrower, called the daughter door. The mother door is equipped with a door control lock and handle, allowing it to be opened or closed relative to the daughter door. The daughter door is equipped with a bolt, typically used in conjunction with the building wall, door frame, or door structure to maintain a closed state. In current door control systems, the daughter door can achieve automatic locking and unlocking via an electric bolt.

[0003] However, when there are adverse conditions such as power outages, motor damage, or damage or jamming of the motor drive rack / gear (reduction gearbox), the electric latch cannot work properly due to the failure of the motor drive, causing the door control system to be unable to open / close the door to provide access. Therefore, it lacks reliability and safety. Summary of the Invention

[0004] To address the technical problems raised in the background section, the present invention provides a central locking latch, comprising:

[0005] A latch box, with a latch panel on one side;

[0006] The locking mechanism includes a driving component, an upper locking component, a lower locking component, and a linkage component; the driving component is installed inside the pin box, the upper locking component and the lower locking component are slidably disposed inside the pin box, and the linkage component is throttlely connected between the upper locking component and the lower locking component to actuate the sliding movement of the upper locking component and the lower locking component; the upper locking component or the lower locking component is disposed on the driving path of the driving component;

[0007] The unlocking component includes a lever and a paddle that are fixedly connected. The lever is rotatable to engage or disengage from the latch panel. The lever has an operating end and a transmission end that are disposed opposite to each other. The paddle is connected to the transmission end. The operating end is adapted to disengage from the extension plane of the latch panel when the lever rotates relative to the latch panel, so as to drive the paddle to slide the upper locking component and the lower locking component together to unlock the central locking latch.

[0008] As a preferred technical solution, the lower locking component includes a lower locking slide member and a lower locking hook. The lower locking slide member is slidably disposed in the pin box. The driving component is adapted to drive the lower locking slide member to slide. One end of the lower locking hook is fixedly connected to the lower locking slide member, and the other end passes through the pin box and extends to the external space of the pin box.

[0009] As a preferred technical solution, the driving component includes a locking drive component, an output force transmission component, a moving component, and a releasing component. The locking drive component and the output force transmission component are installed in the pin box, and the output force transmission component and the moving component are tractively connected. The moving component is slidably connected to the pin box, and the releasing component is installed on the moving component. The releasing component is adapted to slide synchronously with the moving component under the driving action of the locking drive component and abut against the lower locking sliding component to unlock the central control pin by acting on the upper locking component and the lower locking component.

[0010] As a preferred technical solution, the lower locking sliding member is provided with a force transmission part, the force transmission part is disposed on the driving path of the driving component, the force transmission part is disposed on the movement path of the paddle, and the unlocking part is adapted to slide against the paddle.

[0011] As a preferred technical solution, the lower locking sliding member is provided with a force transmission part and an unlocking part, the force transmission part and the unlocking part are arranged at intervals, the force transmission part is arranged on the driving path of the driving component, the unlocking part is arranged on the movement path of the paddle, and the unlocking part is adapted to slide against the paddle.

[0012] As a preferred technical solution, the release member and the moving member are movably connected; the release member includes a fixedly connected actuating part and a guide wall, the actuating part being adapted to approach or abut against the force transmitting part or release the force transmitting part away from the moving part on the moving path of the moving member; the guide wall has a guide surface adapted to slide against the paddle.

[0013] As a preferred technical solution, the movable component includes a movable plate, an assembly plate, and a connecting plate that are fixedly connected. The connecting plate is bent and disposed on the movable plate. The assembly plate is connected to the side of the connecting plate away from the movable plate. The movable plate and the assembly plate are arranged at intervals to form an installation space for assembling the release component.

[0014] As a preferred technical solution, the release member and the moving plate are spaced apart, and the lower locking sliding member is installed between the release member and the moving plate.

[0015] As a preferred technical solution, the driving component further includes at least one elastic element, which is pressed between the release element and the moving element. The moving element is provided with a sliding groove structure. The release element and the moving element are slidably configured through the sliding groove structure. The paddle is adapted to contact and act on the release element and compress the elastic element. The release element can slide through the sliding groove structure to displace the acting part and the force transmitting part, so that the paddle contacts the force transmitting part.

[0016] As a preferred technical solution, the driving component further includes at least one elastic element, which is pressed between the release element and the moving element. The elastic element is used to elastically act on the release element toward the lower locking sliding element. The paddle is adapted to contact and act on the release element and compress the elastic element, so that the acting part and the force transmitting part are misaligned and disengaged.

[0017] As a preferred technical solution, the locking mechanism further includes a reset component, which includes a reset spring and a reset bracket. The reset bracket is installed inside the pin box, and the reset spring is sleeved on the reset bracket. One end of the reset spring is connected to the reset bracket, and the other end of the reset spring is connected to the lower locking component. The reset spring is used to reset the lower locking component; and / or

[0018] The latch box is provided with a guide structure, which is used to slide and guide the locking mechanism.

[0019] As a preferred technical solution, the central locking pin further includes a control component, which includes a control circuit board, a push-button switch, and a micro switch. The control circuit board and the micro switch are installed inside the pin box. The control circuit board is electrically connected to the drive component, the push-button switch, and the micro switch. The micro switch is used to obtain the working position of the locking mechanism. The micro switch is located on the sliding path of the upper locking component or the lower locking component. The push-button switch is installed on the pin panel.

[0020] As a preferred technical solution, the latch box includes a main support and a cover plate, and the main support, the cover plate and the latch panel are detachably connected.

[0021] As a preferred technical solution, the latch box is provided with a fixing plate, and multiple fixing plates are provided. One part of the fixing plates fixes the main body bracket and the cover plate together by a first locking member, and another part of the fixing plates fixes the main body bracket, the cover plate and the latch panel together by a first locking member and a second locking member.

[0022] The present invention also provides a door control system, including the aforementioned central locking pin.

[0023] The technical solution provided by this invention has the following advantages:

[0024] The central locking latch provided by this invention includes a latch box, a locking mechanism, and an unlocking component. The locking mechanism includes a driving component, an upper locking component, a lower locking component, and a linkage component. A latch panel is provided on one side of the latch box. The driving component is installed inside the latch box. The upper and lower locking components are slidably disposed inside the latch box. The linkage component is driven between the upper and lower locking components to drive the upper and lower locking components to slide. The upper or lower locking component is disposed on the driving path of the driving component. The unlocking component includes a lever and a paddle that are fixedly connected. The lever can be rotated to engage with or deviate from the latch panel. The lever has an operating end and a transmission end that are arranged opposite to each other. The paddle and the transmission end are connected. The operating end is adapted to deviate from the extension plane of the latch panel when the lever rotates relative to the latch panel, so that the upper and lower locking components slide together to unlock the central locking latch.

[0025] This central locking latch structure provides both automatic locking and unlocking mechanisms. A drive component moves either the upper or lower locking component within the latch box, and a linkage mechanism ensures they are synchronized, enabling automatic locking and unlocking. A manual unlocking mechanism is provided; the user rotates a lever relative to the latch panel, causing a paddle to slide the upper and lower locking components together, unlocking the central locking latch. This design resolves the issue of motor drive malfunctions preventing the electric latch from functioning properly, thus hindering the door control system from opening / closing the door and improving the reliability and security of the central locking latch. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 An exploded view of the central locking pin provided by the present invention;

[0028] Figure 2 A three-dimensional schematic diagram of the central locking pin provided by the present invention;

[0029] Figure 3 A cross-sectional schematic diagram of the central locking pin provided by the present invention;

[0030] Figure 4 A connection diagram of one embodiment of the moving part and releasing part in the central control pin provided by the present invention;

[0031] Figure 5 This is a schematic diagram of the locking sliding component in the central locking pin provided by the present invention;

[0032] Figure 6 This is a schematic diagram of one embodiment of the central locking sliding component of the central locking pin provided by the present invention;

[0033] Figure 7 A schematic diagram of the central locking pin provided by the present invention, viewed from a first-view side perspective.

[0034] Figure 8 This is a schematic diagram of the central locking pin provided by the present invention from a second-view side perspective.

[0035] Figure 9 This is an assembly diagram of the latch panel in the central locking latch provided by the present invention.

[0036] Figure 10 This is a structural schematic diagram of a second embodiment of the central locking sliding component of the central locking pin provided by the present invention;

[0037] Figure 11 This is a connection diagram of a second embodiment of the moving part and releasing part in the central control pin provided by the present invention;

[0038] Figure 12 This is a structural schematic diagram of a second embodiment of the moving part in the central control pin provided by the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of a second embodiment of the release component in the central locking pin provided by the present invention;

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Pin box; 11-Main body bracket; 12-Cover plate; 13-Pin panel; 14-Guide post; 15-Fixing plate; 16-First locking element; 17-Sealing plate; 18-Second locking element;

[0042] 211-Locking drive component; 212-Output force transmission component; 213-Moving component; 2131-Moving plate; 2132-Meshing teeth; 2133-Assembly plate; 2134-Connecting plate; 2135-First slide groove; 2136-Second slide groove; 2137-Third slide groove; 214-Release component; 2141-Actuating part; 2142-Guide wall; 2143-Sliding column; 215-Elastic component; 216-Secondary component Mounting base; 221-Locking sliding component; 2211-Firing part; 2212-Upper guide part; 2213-Upper rack part; 222-Locking hook; 231-Lower locking sliding component; 2311-Force transmission part; 2312-Unlocking part; 2313-Lower guide part; 2314-Lower rack part; 2315-Connecting part; 232-Lower locking hook; 24-Linkage component; 251-Return spring; 252-Return bracket;

[0043] 31-Lever; 32-Pulley;

[0044] 41-Control circuit board; 42-Push-button switch; 43-Micro switch. Detailed Implementation

[0045] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] Example

[0050] See Figures 1 to 9 This embodiment provides a central locking pin, including a pin box 1, a locking mechanism and an unlocking component. The locking mechanism includes a driving component, an upper locking component, a lower locking component and a linkage component 24.

[0051] In this embodiment, see Figure 1 and Figure 2 The latch box 1 has a latch panel 13 on one side; the latch box 1 includes a main support 11 and a cover plate 12, and the main support 11, the cover plate 12 and the latch panel 13 are detachably connected.

[0052] In some implementations, see Figure 1 The latch box 1 contains a fixing plate 15, and multiple fixing plates 15 are provided. One group of fixing plates 15 is fixedly connected to the main support 11 and the cover plate 12 via a first locking member 16. Another group of fixing plates 15 is fixedly connected to the main support 11, the cover plate 12, and the latch panel 13 via a first locking member 16 and a second locking member 18. In a specific embodiment, using... Figure 1 For example, four fixing plates 15 are provided, and the four fixing plates 15 are located in the four internal corner areas inside the pin box 1; two fixing plates 15 are used only for connecting the main body bracket 11 and the cover plate 12. The fixing plates 15 are U-shaped structures, and each fixing plate 15 has two connecting holes. One connecting hole connects the main body bracket 11 and the fixing plate 15 through the first locking member 16, and the other connecting hole connects the cover plate 12 and the fixing plate 15 through the first locking member 16, thereby fixing the main body bracket 11 and the cover plate 12 together. There are two fixing plates 15 for plate 12 and pin panel 13. The fixing plates 15 are U-shaped structures. Each fixing plate 15 has three connecting holes. One connecting hole connects the main support 11 and the fixing plate 15 through the first locking member 16. Another connecting hole connects the pin panel 13 and the fixing plate 15 through the second locking member 18. The third connecting hole connects the cover plate 12 and the fixing plate 15 through the first locking member 16, thereby fixing the main support 11, cover plate 12 and pin panel 13 together. Of course, more fixing plates 15 can be provided.

[0053] In this embodiment, an automatic locking scheme and an automatic unlocking scheme are provided by a locking mechanism; the driving component is installed in the pin box 1, the upper locking component and the lower locking component are slidably disposed in the pin box 1, and the linkage component 24 is drivenly connected between the upper locking component and the lower locking component to link the upper locking component and the lower locking component to slide; the upper locking component or the lower locking component is disposed on the driving path of the driving component.

[0054] See Figure 1 and Figure 3 The upper locking component includes an upper locking slide 221 and an upper locking hook 222. The upper locking slide 221 is slidably disposed in the pin box 1. One end of the upper locking hook 222 is fixedly connected to the upper locking slide 221, and the other end passes through the pin box 1 and extends to the external space of the pin box 1. The lower locking component includes a lower locking slide 231 and a lower locking hook 232. The lower locking slide 231 is slidably disposed in the pin box 1. One end of the lower locking hook 232 is fixedly connected to the lower locking slide 231, and the other end passes through the pin box 1 and extends to the external space of the pin box 1.

[0055] In this embodiment, a manual unlocking scheme is provided by an unlocking component. The unlocking component includes a lever 31 and a paddle 32 fixedly connected. The lever 31 can be rotated to engage with or deviate from the pin panel 13. The lever 31 has an operating end and a transmission end that are arranged opposite to each other. The paddle 32 is connected to the transmission end. The operating end is adapted to deviate from the extension plane of the pin panel 13 when the lever 31 rotates relative to the pin panel 13, so that the transmission paddle 32 can act on the upper locking component and the lower locking component to slide and unlock the central locking pin.

[0056] As an exemplary implementation, the lower locking component is driven by the driving component, and the lower locking component then links the upper locking component via the linkage member 24 to achieve automatic locking or unlocking. The driving component is adapted to drive the lower locking slide member 231 to slide.

[0057] For a specific implementation method, see Figure 10 The lower locking sliding member 231 is provided with a force transmission part 2311, which is disposed on the driving path of the driving component and on the movement path of the lever 32. The unlocking part 2312 is adapted to slide against the lever 32. In this way, the automatic locking and unlocking paths and the manual unlocking path share the same path, which can improve the integration of the structure.

[0058] As another specific implementation method, see Figure 6 The lower locking sliding member 231 is provided with a force transmission part 2311 and an unlocking part 2312, which are spaced apart. The force transmission part 2311 is located on the driving path of the driving component, and the unlocking part 2312 is located on the movement path of the lever 32. The unlocking part 2312 is adapted to slide against the lever 32. By spaced apart, the force transmission part 2311 and the unlocking part 2312 ensure that the automatic locking and unlocking paths and the manual unlocking paths do not interfere with each other.

[0059] In some implementations, see Figure 5The locking sliding member 221 includes a firing part 2211, an upper guide part 2212, and an upper rack part 2213. The firing part 2211 is used to contact the micro switch 43, so that the micro switch 43 can detect the position information of the locking sliding member 221. The upper guide part 2212 is used to slide with the cover plate 12. Two upper guide parts 2212 can be provided to improve the sliding motion accuracy of the locking sliding member 221. The upper rack part 2213 is used to drive the linkage member 24.

[0060] In some implementations, see Figure 6 and Figure 10 The lower locking sliding member 231 also includes a lower guide portion 2313, a lower rack portion 2314, and a connecting portion 2315. The lower guide portion 2313 is used to slide with the cover plate 12. Two lower guide portions 2313 can be provided to improve the sliding motion accuracy of the lower locking sliding member 231. The upper rack portion 2213 is used to drive the linkage member 24. The connecting portion 2315 is used to connect the reset member.

[0061] See Figure 1 The driving components include a locking drive component 211, an output force transmission component 212, a moving component 213, and a releasing component 214. The locking drive component 211 and the output force transmission component 212 are installed inside the pin box 1, and the output force transmission component 212 and the moving component 213 are connected by a transmission mechanism. The moving component 213 is slidably connected to the pin box 1, and the releasing component 214 is installed on the moving component 213. The releasing component 214 is adapted to slide synchronously with the moving component 213 under the driving action of the locking drive component 211, and abut against the force transmission part 2311 to unlock the central locking pin by acting on the upper and lower locking components. When the locking mechanism automatically unlocks, the moving plate 2131 and the releasing component 214 can jointly drive the lower locking sliding component 231 to slide synchronously.

[0062] In some embodiments, the locking drive component 211 is configured as a drive geared motor, the output force transmission component 212 is configured as an output gear connected to the output end of the drive geared motor, and the moving component 213 is provided with meshing teeth 2132, which mesh with the output gear for transmission. A mounting base 216 is fixed inside the pin box 1, and the locking drive component 211 and the mounting base 216 are fixedly installed.

[0063] In this embodiment, the release member 214 and the moving member 213 are movably connected; as a preferred embodiment, see [reference needed]. Figure 4 The release member 214 includes a fixedly connected action part 2141 and a guide wall 2142. The action part 2141 is adapted to approach or move away from the force transmission part 2311 on the movement path of the moving member 213.

[0064] In some implementations, see Figure 13The guide wall 2142 has a guide surface extending toward the force transmission part 2311. The paddle 32 is adapted to slide against the guide surface under the transmission action of the lever 31. After the action part 2141 on the release member 214 is misaligned and withdraws from the working position, the paddle 32 abuts against the force transmission part 2311 to implement manual unlocking.

[0065] In some implementations, see Figure 4 The guide wall 2142 has a guide surface extending toward the unlocking part 2312. The lever 32 is adapted to slide against the guide surface under the transmission action of the lever 31, so as to abut against the unlocking part 2312. When the locking mechanism automatically unlocks, the actuating part 2141 contacts the force transmission part 2311 of the lower locking sliding member 231, causing the lower locking sliding member 231 to move. When the user manually unlocks using the unlocking assembly, the guide wall 2142 guides the lever 32 so that it can reliably abut against the unlocking part 2312.

[0066] As a preferred technical solution, see Figure 4 The movable component 213 includes a movable plate 2131, an assembly plate 2133, and a connecting plate 2134 fixedly connected to each other. The connecting plate 2134 is bent and disposed on the movable plate 2131. The assembly plate 2133 is connected to the side of the connecting plate 2134 away from the movable plate 2131. The movable plate 2131 and the assembly plate 2133 are arranged at intervals to form an installation space for the assembly release component 214. The release component 214 and the assembly plate 2133 are fixedly connected. This arrangement, through the movable plate 2131, the assembly plate 2133, and the connecting plate 2134, can create a partially shielded space, which is beneficial for blocking external interference and ensuring the smooth flow of the driving path and the unlocking path.

[0067] As one specific implementation method, see Figure 4 and Figure 6 The release member 214 and the moving plate 2131 are spaced apart, and the locking sliding member 231 is installed between the release member 214 and the moving plate 2131. The force transmission part 2311 and the unlocking part 2312 are respectively protruding from the side of the locking sliding member 231 facing the release block. As another embodiment, the force transmission part 2311 can be set as the end of the groove, and a protrusion is provided on the release block. The protrusion slides in the groove, and when the locking mechanism automatically unlocks, the protrusion and the end of the groove are connected to transmit force and abut against each other.

[0068] As a further technical solution, see Figures 11 to 13The driving component also includes an elastic element 215, which is pressed between the release element 214 and the moving element 213. The moving element 213 has a groove structure, and the release element 214 and the moving element 213 are slidably configured through the groove structure. The paddle 32 is adapted to contact and act on the release element 214 and compress the elastic element 215. The release element 214 can slide through the groove structure, causing the acting part 2141 and the force transmission part 2311 to be displaced and separated, so that the paddle 32 contacts the force transmission part 2311. This structure allows the automatic locking and unlocking structure of the driving component to exit the working position, and facilitates the manual unlocking structure to enter the working position. During manual unlocking, the paddle 32 acts on the release element 214 to slide along the guide surface and compresses the elastic element 215. After the manual unlocking is completed and the paddle 32 is withdrawn, the elastic element 215 acts on the release element 214 to slide back to its original position, so that the acting part 2141 enters the working position. Specifically, the elastic element 215 can be pressed between the connecting plate 2134 of the release element 214 and the moving element 213.

[0069] For a specific implementation method, see Figure 12 and Figure 13 The sliding structure includes a first sliding groove 2135, a second sliding groove 2136, and a third sliding groove 2137. The first sliding groove 2135 and the second sliding groove 2136 are disposed on the moving plate 2131, and the third sliding groove 2137 is disposed on the assembly plate 2133. The release member 214 is provided with three sliding pillars 2143, which are slidably connected to the three sliding grooves respectively. The first sliding groove 2135 is configured as a closed groove, and the second sliding groove 2136 and the third sliding groove 2137 are configured as semi-closed grooves to facilitate the disassembly and assembly of the release member 214 and the moving member 213.

[0070] As a further technical solution, see Figure 4 The driving component also includes an elastic element 215, which is pressed between the assembly plate 2133 of the release element 214 and the moving element 213. The elastic element 215 is used to elastically force the release element 214 toward the lower locking sliding element 231. The paddle 32 is adapted to contact the release element 214 and compress the elastic element 215, causing the acting part 2141 and the force transmission part 2311 to be misaligned and disengaged. This allows the automatic locking and unlocking structure of the driving component to exit the working position, facilitating the manual unlocking structure to enter the working position. The elastic element 215 establishes a flexible connection between the release element 214 and the lower locking sliding element 231, providing a flexible buffer when the driving component contacts and slides the lower locking sliding element 231, which helps to extend the service life of the driving component and the lower locking sliding element 231 in their transmission. In a specific embodiment, two elastic elements 215 are provided. The two elastic elements 215 can strengthen the alignment of the release element 214 and the lower locking sliding element 231, which helps to improve the assembly accuracy.

[0071] In some embodiments, the linkage component 24 is configured as a locking hook gear; the locking hook gear is meshed with the upper rack portion 2213 and the lower rack portion 2314 respectively for transmission, and the main support 11 is provided with a shaft that is rotatably connected to the locking hook gear.

[0072] As a preferred technical solution, see Figure 1 and Figure 3 The locking mechanism also includes a reset component, which comprises a reset spring 251 and a reset bracket 252. The reset bracket 252 is installed inside the pin box 1, and the reset spring 251 is sleeved on the reset bracket 252. One end of the reset spring 251 is connected to the reset bracket 252, and the other end of the reset spring 251 is connected to the lower locking component, specifically to the lower locking sliding member 231. The reset spring 251 is used to reset the lower locking sliding member 231. During automatic unlocking, the driving component displaces the lower locking component and compresses the reset spring 251. During automatic locking, the driving component resets the lower locking component, and simultaneously, the reset spring 251 elastically resets the lower locking sliding member 231. During manual unlocking, the lever 32 displaces the lower locking component and compresses the reset spring 251. After manual unlocking, the reset spring 251 resets the lower locking sliding member 231, enabling the locking mechanism to automatically and smoothly lock.

[0073] In a preferred embodiment, the latch box 1 is provided with a guide structure for guiding the sliding of the locking mechanism. The guide structure includes a guide groove on the cover plate 12, which corresponds to and slidably connects to the upper guide portion 2212 and the lower guide portion 2313. The guide groove serves two purposes: firstly, it guides the upper guide portion 2212 and the lower guide portion 2313, ensuring the upper and lower locking sliding members 221 and 231 slide in alignment; secondly, it limits the extreme positions of the upper and lower locking sliding members 221 and 231, ensuring the rationality and reliability of the movement range. (See also...) Figure 1 The guide structure also includes a guide post 14 disposed in the pin box 1. The guide post 14 is fixedly connected to the main support 11. The guide post 14 can be used to guide the sliding of the limiting moving part 213 in the pin box 1. A guide groove can be provided on the moving part 213, and the guide post 14 is disposed through the guide groove.

[0074] In some implementations, the central locking pin also includes a control component, see [link to relevant documentation]. Figure 1The control components include a control circuit board 41, a push-button switch 42, and a micro switch 43. The control circuit board 41 and micro switch 43 are installed inside the latch box 1. The control circuit board 41 is electrically connected to the drive component, the push-button switch 42, and the micro switch 43. The micro switch 43 is used to obtain the working position of the locking mechanism and is located on the sliding path of the upper or lower locking component. In specific implementation, when the micro switch 43 is triggered, it indicates automatic unlocking and controls the closing locking drive component 211. The push-button switch 42 is installed on the latch panel 13 for user triggering.

[0075] In one specific implementation, see Figure 1 A sealing plate 17 is provided inside the pin box 1. The sealing plate 17 is disposed adjacent to the pin panel 13. The sealing plate 17 can be used to install the lever 31. The pin panel 13 has an installation notch for the lever 31. When the lever 31 is rotated, the user can see the inside of the pin box through this notch. The sealing plate 17 can close and block this notch to prevent the inside from being exposed. In addition, the sealing plate 17 can limit the lever 31 so that the lever 31 is flush with the horizontal plane of the pin panel 13.

[0076] The central locking latch provided in this embodiment has an automatic locking scheme and an automatic unlocking scheme provided by the locking mechanism; specifically, with Figure 1 and Figure 3 For example, the locking drive 211 is controlled to drive the output force transmission component 212 to rotate, and the output force transmission component 212 drives the moving component 213 to move up and down. When the moving component 213 moves up and down, the release component 214 can squeeze / release the lower locking slide component 231, so that the lower locking slide component 231 and the lower locking hook 232 move up and down, thereby realizing the opening and closing of the lower pin. The lower locking slide component 231 drives the upper locking slide component 221 and the upper locking hook 222 to move up and down synchronously through the linkage component 24, thereby realizing the opening and closing of the upper pin. At the same time, the micro switch 43 will detect whether the upper locking slide component 221 has moved into place and feed the signal back to the control circuit board 41. The control circuit board 41 can control the output parameters of the locking drive 211 according to the signal.

[0077] As a variation, the driving component drives the upper locking component, which in turn drives the lower locking component via the linkage component 24 to achieve automatic locking or unlocking. The driving component is adapted to drive the locking sliding component 221 to slide.

[0078] The central locking latch provided in this embodiment has a manual unlocking solution provided by the unlocking component. Specifically, it is based on... Figures 1 to 3For example, the user presses the transmission end below the lever 31, causing the operating end above the lever 31 to lift; the operating end of the lever 31 moves outward, causing the transmission end to drive the paddle 32 to move; when the paddle 32 contacts the lower locking slide 231, it can drive the lower locking slide 231 and the lower locking hook 232 to move upward, thereby opening the lower pin, and simultaneously squeezing the return spring 251; the lower locking slide 231 drives the upper locking slide 221 and the upper locking hook 222 to move downward synchronously through the linkage component 24, thereby opening the upper pin; when the lever 31 is no longer operated, the return spring 251 will restore its deformation, driving the lower locking slide 231 and the lower locking hook 232 to move downward, thereby closing the lower pin, until it is reset; the lower locking slide 231 drives the upper locking slide 221 and the upper locking hook 222 to move upward synchronously through the linkage component 24, thereby closing the upper pin.

[0079] When the locking drive 211 resumes operation, it will drive the output force transmission component 212 to return to its initial position, and the release component 214 will reset to its initial position. At this time, the electric switch can work normally.

[0080] The central locking latch provided in this embodiment offers both automatic locking and automatic unlocking mechanisms. A drive component moves the upper or lower locking component within the latch box 1, and a linkage component 24 links the upper and lower locking components, enabling automatic locking and unlocking. An unlocking component provides a manual unlocking solution. The user operates a lever 31 to rotate relative to the latch panel 13, causing the lever 31 to drive a paddle 32, which in turn moves the upper and lower locking components to unlock the central locking latch. This design solves the problem of motor drive failures causing the electric latch to malfunction, preventing the door control system from opening / closing the door and providing access. This improves the reliability and security of the central locking latch.

[0081] This embodiment also provides a door control system, including the aforementioned central locking latch. The door control system has good reliability and security.

[0082] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A central locking latch, characterized in that, include: A latch box (1) has a latch panel (13) on one side; The locking mechanism includes a driving component, an upper locking component, a lower locking component, and a linkage component (24); the driving component is installed in the pin box (1), the upper locking component and the lower locking component are slidably disposed in the pin box (1), and the linkage component (24) is convexly connected between the upper locking component and the lower locking component to link the upper locking component and the lower locking component to slide; the upper locking component or the lower locking component is disposed on the driving path of the driving component; The lower locking component includes a lower locking slide member (231) and a lower locking hook (232). The lower locking slide member (231) is slidably disposed in the pin box (1). The driving component is adapted to drive the lower locking slide member (231) to slide. One end of the lower locking hook (232) is fixedly connected to the lower locking slide member (231), and the other end passes through the pin box (1) and extends to the external space of the pin box (1). The driving component includes a locking drive (211), an output force transmission component (212), a moving component (213), and a releasing component (214). The locking drive (211) and the output force transmission component (212) are installed in the pin box (1). The output force transmission component (212) and the moving component (213) are connected in a transmission manner. The moving component (213) is slidably connected to the pin box (1). The releasing component (214) is installed on the moving component (213). The releasing component (214) is adapted to slide synchronously with the moving component (213) under the driving action of the locking drive (211) and abut against the lower locking sliding component (231) to unlock the central locking pin by acting on the upper locking component and the lower locking component. The unlocking component includes a lever (31) and a paddle (32) fixedly connected. The lever (31) is rotatably engaged with or disengaged from the pin panel (13). The lever (31) has an operating end and a transmission end that are disposed opposite to each other. The paddle (32) is connected to the transmission end. The operating end is adapted to deviate from the extension plane of the pin panel (13) when the lever (31) rotates relative to the pin panel (13), so as to drive the paddle (32) to act on the upper locking component and the lower locking component to slide and unlock the central locking pin.

2. The central locking pin according to claim 1, characterized in that, The lower locking sliding member (231) is provided with a force transmission part (2311), which is arranged on the driving path of the driving component and on the movement path of the paddle (32). The force transmission part (2311) is adapted to slide against the paddle (32).

3. The central locking pin according to claim 1, characterized in that, The lower locking sliding member (231) is provided with a force transmission part (2311) and an unlocking part (2312). The force transmission part (2311) and the unlocking part (2312) are arranged at intervals. The force transmission part (2311) is arranged on the driving path of the driving component, and the unlocking part (2312) is arranged on the movement path of the paddle (32). The unlocking part (2312) is adapted to slide against the paddle (32).

4. The central locking pin according to claim 2 or 3, characterized in that, The release member (214) and the moving member (213) are movably connected; the release member (214) includes a fixedly connected actuating part (2141) and a guide wall (2142), the actuating part (2141) being adapted to approach or release the force transmission part (2311) on the moving path of the moving member (213); the guide wall (2142) has a guide surface adapted to slide against the paddle (32).

5. The central locking pin according to claim 4, characterized in that, The movable component (213) includes a movable plate (2131), an assembly plate (2133), and a connecting plate (2134) that are fixedly connected. The connecting plate (2134) is bent and disposed on the movable plate (2131). The assembly plate (2133) is connected to the side of the connecting plate (2134) away from the movable plate (2131). The movable plate (2131) and the assembly plate (2133) are arranged at intervals to form an installation space for assembling the release component (214).

6. The central locking pin according to claim 5, characterized in that, The release member (214) and the moving plate (2131) are spaced apart, and the lower locking sliding member (231) is installed between the release member (214) and the moving plate (2131).

7. The central locking pin according to claim 4, characterized in that, The driving component further includes at least one elastic element (215), which is pressed between the release element (214) and the moving element (213). The moving element (213) is provided with a groove structure. The release element (214) and the moving element (213) are slidably configured through the groove structure. The paddle (32) is adapted to contact and act on the release element (214) and compress the elastic element (215). The release element (214) can slide through the groove structure, so that the acting part (2141) and the force transmission part (2311) are displaced and separated, so that the paddle (32) contacts the force transmission part (2311).

8. The central locking pin according to claim 4, characterized in that, The driving component further includes at least one elastic element (215), which is pressed between the release element (214) and the moving element (213). The elastic element (215) is used to elastically act on the release element (214) toward the lower locking sliding element (231). The paddle (32) is adapted to contact and act on the release element (214) and compress the elastic element (215) so that the acting part (2141) and the force transmission part (2311) are misaligned and disengaged.

9. The central locking pin according to claim 4, characterized in that, The locking mechanism further includes a reset component, which includes a reset spring (251) and a reset bracket (252). The reset bracket (252) is installed inside the pin box (1). The reset spring (251) is sleeved on the reset bracket (252). One end of the reset spring (251) is connected to the reset bracket (252), and the other end of the reset spring (251) is connected to the lower locking component. The reset spring (251) is used to reset the lower locking component; and / or The pin box (1) is provided with a guide structure, which is used to slide and guide the locking mechanism.

10. The central locking pin according to claim 4, characterized in that, The central locking pin also includes a control component, which includes a control circuit board (41), a push-button switch (42), and a micro switch (43). The control circuit board (41) and the micro switch (43) are installed in the pin box (1). The control circuit board (41) is electrically connected to the drive component, the control circuit board (41) is electrically connected to the push-button switch (42), and the control circuit board (41) is electrically connected to the micro switch (43). The micro switch (43) is used to obtain the working position of the locking mechanism. The micro switch (43) is set on the sliding path of the upper locking component or the lower locking component. The push-button switch (42) is installed on the pin panel (13).

11. The central locking pin according to claim 4, characterized in that, The latch box (1) includes a main support (11) and a cover plate (12), and the main support (11), the cover plate (12) and the latch panel (13) are detachably connected.

12. The central locking pin according to claim 11, characterized in that, The latch box (1) is provided with a fixing plate (15). There are multiple fixing plates (15). One part of the fixing plates (15) are fixedly connected to the main body bracket (11) and the cover plate (12) by the first locking member (16). Another part of the fixing plates (15) are fixedly connected to the main body bracket (11), the cover plate (12) and the latch panel (13) by the first locking member (16) and the second locking member (18).

13. A gating system, characterized in that, Includes the central locking pin as described in any one of claims 1-12.

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