An adjustable integrated locking plate and central locking pin device

Abstract

This application provides an adjustable integrated locking plate and central locking bolt device, comprising: a panel extending along a first direction, the length of which matches the length of the sub-door mounting groove; a central locking bolt detachably mounted on the panel; a pair of sliding plate assemblies slidably connected to the panel and located on both sides of the central locking bolt along the first direction; each sliding plate assembly includes a sliding plate body extending along the first direction, the sliding plate body having at least one gourd hole, the gourd hole including a connected circular fixing hole and a strip-shaped sliding groove; a first connecting member passing through the gourd hole and the panel in sequence, slidably connecting the sliding plate assembly to the panel, the sliding direction of the sliding plate body being parallel to the first direction. This structure, through a split sliding plate structure (panel and sliding plate separated) combined with a gourd hole mounting mechanism, achieves the dual functions of adjustable sliding plate height and adjustable installation position, improving installation efficiency.

Description

Technical Field

[0001] This application relates to the field of door lock manufacturing technology, specifically to an adjustable integrated lock plate and central locking pin integrated device. Background Technology

[0002] A double-leaf door is a special type of double-door door, consisting of a narrower smaller door and a wider larger door. In practical use, the smaller door is usually closed and only opened in specific situations, such as when moving large furniture or appliances, while the larger door is opened or closed normally. The smaller door is typically secured to the door frame by two bolts, one at the top and one at the bottom, which are synchronously driven by a central locking bolt.

[0003] However, in the field of door lock manufacturing, in traditional integrated lock plates and bolt devices, the panel and slide plate are an integral structure. During installation, the height and horizontal position of the bolt need to be adjusted simultaneously. Operators need to repeatedly disassemble and reposition the bolts, resulting in long average installation time and low installation efficiency. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide an adjustable integrated locking plate and central locking pin device to improve the installation efficiency of the integrated locking plate and pin head device; including: A panel that extends along a first direction and whose length matches the length of the sub-door mounting groove; A central locking bolt, which is detachably mounted on the panel; A pair of sliding plate assemblies, the pair of sliding plate assemblies being slidably connected to the panel and located on both sides of the central locking pin along the first direction; each sliding plate assembly includes a sliding plate body extending along the first direction, the sliding plate body having at least one gourd hole, the gourd hole including a connected circular fixing hole and a strip groove; A first connector passes through the gourd hole and the panel in sequence, slidably connecting the slider assembly to the panel. The sliding direction of the slider body is parallel to the first direction.

[0005] According to the technical solution provided in the embodiments of this application, each of the sliding body has a pin head at the end away from the central control pin lock, and the pin head extends along the first direction; the pin head has an extended state and a retracted state. When it is in the extended state, the pin head at least partially protrudes from the edge of the panel, and when it is in the retracted state, the pin head is completely retracted into the projection area of ​​the panel; the central control pin lock is used to control the pin head to switch between the extended state and the retracted state.

[0006] According to the technical solution provided in the embodiments of this application, the central locking pin is provided with a bidirectional power output end, and a pair of sliding plate assemblies are respectively connected to the bidirectional power output end through a transmission structure; the sliding plate assembly is driven by the central locking pin and slides towards or away from the central locking pin under the transmission mechanism, so that the pin head switches between the extended state and the retracted state.

[0007] According to the technical solution provided in the embodiments of this application, the first connecting member includes: The rivet has a first through hole axially formed at its center; A fixing screw, which can pass through the first through hole to lock the panel to the sub-door.

[0008] According to the technical solution provided in the embodiments of this application, the length of the strip groove limits the sliding stroke of the slide body relative to the panel, and the sliding stroke corresponds to the extension and retraction stroke of the pin head.

[0009] According to the technical solution provided in the embodiments of this application, the panel includes a long panel and a short panel detachably connected to the long panel. A pressure plate is provided at the end of the short panel near the long panel. The pressure plate extends toward the long panel to cover a part of the long panel. A serrated cutting part is provided at the top of the slider body. After cutting, the short panel and the pin head installed thereon can be moved downward along a first direction.

[0010] According to the technical solution provided in the embodiments of this application, the panel is provided with a clearance hole corresponding to the position of the gourd hole, and the rivet is riveted and fixed to the panel through the clearance hole.

[0011] According to the technical solution provided in the embodiments of this application, the panel is also provided with a secondary latch box, and the secondary latch box is provided with at least one secondary oblique lock docking groove for docking with the secondary lock tongue on the main door.

[0012] According to the technical solution provided in the embodiments of this application, the panel is further provided with a main latch box, which is provided with a main oblique lock docking groove and a main square lock docking groove for docking with the main lock tongue on the main door.

[0013] According to the technical solution provided in the embodiments of this application, the secondary buckle box includes: A substrate, wherein the mating groove is provided on the substrate; At least one adjustment hole, the adjustment hole penetrating the substrate; An eccentric screw passes through the adjustment hole to connect the substrate to the panel; A limiting groove is provided on the substrate. The screw portion of the eccentric screw is threadedly connected to the panel. The head of the eccentric screw is recessed into the limiting groove. When the eccentric screw is rotated, its head moves along the limiting groove, causing the secondary buckle box to move laterally relative to the panel.

[0014] In summary, this utility model proposes an adjustable integrated locking plate and central locking pin device, comprising: a panel extending along a first direction, the length of which matches the length of the sub-door mounting groove; a central locking pin lock detachably mounted on the panel; a pair of sliding plate assemblies slidably connected to the panel and located on both sides of the central locking pin lock along the first direction; each sliding plate assembly includes a sliding plate body extending along the first direction, the sliding plate body having at least one gourd hole, the gourd hole including a connected circular fixing hole and a strip-shaped sliding groove; a first connecting member sequentially passing through the gourd hole and the panel, slidably connecting the sliding plate assembly to the panel, the sliding direction of the sliding plate body being parallel to the first direction.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: The slidable connection design between the slider assembly and the panel (through the gourd hole and the first connecting piece) allows for independent adjustment of the slider's horizontal position and the central locking pin height. Operators do not need to adjust both dimensions simultaneously, significantly simplifying the installation process and enabling modular independent adjustment. Furthermore, utilizing the combination of the circular fixing hole and the strip-shaped groove in the gourd hole, the slider's sliding direction is strictly limited to the first direction (horizontal). Adjustment only requires sliding the slider body to complete the positioning, eliminating the need for repeated disassembly of components and reducing installation time. In summary, this structure, through a split slider structure (panel and slider separated) combined with a gourd hole installation mechanism, achieves both adjustable slider height and adjustable installation position, improving installation efficiency. Attached Figure Description

[0016] Figure 1 A side view of one side of the adjustable integrated locking plate and central control pin integrated device provided in the embodiments of this application; Figure 2 A side view of the other side of the adjustable integrated locking plate and central locking pin integrated device provided in the embodiments of this application; Figure 3 A schematic diagram illustrating the structure of the adjustable integrated locking plate of the sub-door, the integrated device of the central control bolt, and the integrated device of the main door provided in this application embodiment. Figure 4 A schematic diagram of the short panel and pin (unassembled) provided in an embodiment of this application; Figure 5 A schematic diagram of the short panel and pin (when assembled) provided in an embodiment of this application; Figure 6A schematic diagram of the structure of the long panel and the slider body (when not assembled) provided in the embodiments of this application; Figure 7 A schematic diagram of the structure of the long panel and the slider body (when the first connector is aligned with the gourd hole on the slider body) provided in the embodiments of this application; Figure 8 A schematic diagram of the structure of the long panel and the slider body (when the first connector enters the gourd hole on the slider body) provided in the embodiments of this application; Figure 9 A schematic diagram of the structure of the long panel and the slider body (when the head of the first connector completely penetrates the gourd hole on the slider body) provided in the embodiment of this application; Figure 10 This is a schematic diagram of the structure of the long panel and the slider body (when the slider body slides on the panel after assembly) provided in the embodiment of this application.

[0017] The text labels in the image represent: 1. Panel; 2. Sliding plate body; 3. Central locking pin; 4. Wrench; 5. Hoist hole; 6. First connecting piece; 7. Serrated cutting part; 8. Pin head; 9. Secondary oblique lock docking groove; 10. Eccentric screw; 11. Main oblique lock docking groove; 12. Main square lock docking groove; 13. Short panel; 14. Pressure plate. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example 1 As mentioned in the background section, to address the problems in the prior art, this application proposes an adjustable integrated locking plate and central locking pin device to improve the installation efficiency of the integrated locking plate and pin device; such as Figure 1-2 As shown, it includes: Panel 1 extends along a first direction and its length matches the length of the sub-door mounting groove; Central locking bolt 3, which is detachably installed on the panel 1; A pair of sliding plate assemblies, the pair of sliding plate assemblies being slidably connected to the panel 1 and located on both sides of the central locking pin 3 along the first direction; each sliding plate assembly includes a sliding plate body 2 extending along the first direction, the sliding plate body 2 being provided with at least one gourd hole 5, the gourd hole 5 including a connected circular fixing hole and a strip-shaped sliding groove; The first connector 6 passes through the gourd hole 5 and the panel 1 in sequence, and slidably connects the slider assembly to the panel 1. The sliding direction of the slider body 2 is parallel to the first direction.

[0021] Specifically, panel 1, serving as the supporting base, extends along the height direction of the door (i.e., the first direction). Its length matches the pre-embedded groove of the sub-door frame, and strip-shaped mounting holes are opened on both sides to accommodate different door thicknesses. The central locking bolt lock 3 is an electromagnetically driven or mechanically actuated lock body, which is detachably attached to the rectangular opening in the middle of panel 1 via a buckle. When it is a mechanically actuated lock body, when the lever 4 is turned by hand, the bolt head 8 will be driven to extend. Sliding assemblies are symmetrically arranged on the left and right sides of the central locking bolt lock 3 along the first direction. Each sliding assembly includes: sliding body 2: a serrated stainless steel strip with a gourd-shaped hole 5 (composed of a circular hole and a strip-shaped groove, resembling a gourd). Sliding mechanism: the first connecting piece 6 (such as a rivet) passes through the gourd-shaped hole 5 and the guide hole of panel 1, so that the sliding body 2 can only slide along the first direction. The circular hole is used to fix the initial position, and the strip-shaped groove limits the sliding stroke.

[0022] Working principle: When there is a misalignment between the child door and the mother door, the first connecting piece 6 is loosened, and the sliding plate body 2 is pushed laterally along the strip groove. After adjusting the lock position, it is tightened again. The geometric constraint of the gourd hole 5 provides both sliding freedom and prevents rotational offset. It solves the misalignment problem caused by door frame deformation in traditional door locks by combining the drive of the bolt head 8 with the function of the lock plate, reducing on-site welding procedures; the central control bolt lock 3 has a modular design and can be replaced individually when damaged.

[0023] In a preferred embodiment, each of the slider bodies 2 has a pin head 8 at the end away from the central locking pin 3, and the pin head 8 extends along the first direction; the pin head 8 has an extended state and a retracted state. When in the extended state, the pin head 8 protrudes at least partially from the edge of the panel 1, and when in the retracted state, the pin head 8 is completely retracted into the projection area of ​​the panel 1; the central locking pin 3 is used to control the pin head 8 to switch between the extended state and the retracted state.

[0024] Specifically, the pin head 8 is also provided with a gourd hole 5. The pin head 8 is assembled with the short panel 13, and the slider body 2 is assembled with the long panel. The assembly method of the pin head 8 with the short panel 13 through the gourd hole 5 and the first connecting piece 6 is the same as the assembly method of the slider body 2 with the long panel. The detachable assembly method of the pin head 8 and the short panel 13 is as follows: Figure 4 and Figure 5 The assembly process of the slider body 2 and the long panel (in chronological order of the assembly process) is as follows: Figures 6-10 As shown.

[0025] Furthermore, the central locking pin 3 is provided with a bidirectional power output end, and a pair of sliding plate assemblies are respectively connected to the bidirectional power output end through a transmission structure; the sliding plate assembly is driven by the central locking pin 3 and slides towards or away from the central locking pin 3 under the transmission mechanism, so that the pin head 8 switches between the extended state and the retracted state.

[0026] Specifically, the pin head 8 is vertically fixed to the end of the slider body 2. In the extended state, the pin head 8 protrudes from the edge of the panel 1 (inserting into the pre-embedded hole in the door frame); in the retracted state, the pin head 8 is completely retracted into the projection area of ​​the panel 1. State switching: When the central locking bolt lock 3 is manually operated, it outputs thrust along its two ends, driving the slider assemblies on both sides to slide, causing the pin heads 8 at both ends of the slider assemblies to extend and retract. When the user locks the bolt, the central locking bolt lock 3 outputs axial thrust to push the slider body 2 outward in the first direction, causing the pin head 8 to extend and insert into the door frame hole; when unlocking, the reverse action retracts the pin head 8.

[0027] Specifically, to achieve synchronous movement of the left and right pin heads 8, a symmetrical transmission design is adopted: the bidirectional power output end is a bidirectional rack extending from both sides of the central control pin lock 3; the transmission structure includes: a connecting rod: hinged between the end of the rack and the slide body 2; the central control pin lock 3 is activated → the bidirectional rack is pushed outward / pulled inward synchronously → the connecting rod pushes the slide bodies 2 on both sides to slide in opposite directions → the pin heads 8 extend / retract synchronously.

[0028] In a preferred embodiment, the first connector 6 includes: The rivet has a first through hole axially formed at its center; A fixing screw is provided, which can pass through the first through hole to lock the panel 1 to the sub-door.

[0029] Specifically, the first connector 6 adopts a composite structure to achieve both sliding and installation functions. The rivet is made of hollow stainless steel, and the fixing screw is an M4 machine screw that passes through the rivet hole and is screwed into the door frame. Installation process: The rivet passes through the gourd hole 5 of the slider body 2 and is riveted and fixed to the clearance hole of the panel 1; the rivet head is stuck in the circular part of the gourd hole 5 (to prevent it from falling off); the fixing screw passes through the center hole of the rivet and is locked to the pre-embedded nut in the door frame. This achieves dual fixation: the rivet constrains the movement trajectory of the slider, while the screw bears the main load; the slider position can be adjusted by loosening the screw without complete disassembly; the rivet head and the gourd hole 5 are fitted with a clearance to prevent loosening and eliminate vibration and abnormal noise.

[0030] In a preferred embodiment, the length of the strip groove defines the sliding stroke of the slide body 2 relative to the panel 1, the sliding stroke corresponding to the extension stroke of the pin head 8.

[0031] Specifically, the range of motion is precisely controlled by the physical dimensions of the strip groove. The groove length L is designed according to the stroke requirements of the pin head 8; the sliding stroke S is calculated as S = L - rivet diameter, corresponding to the extension and retraction distance of the pin head 8. When the rivet slides within the strip groove: extreme position 1: the rivet contacts the left end of the groove → the pin head 8 is fully retracted; extreme position 2: the rivet contacts the right end of the groove → the pin head 8 is fully extended.

[0032] In a preferred embodiment, the panel 1 includes a long panel and a short panel 13 detachably connected to the long panel. The short panel 13 is provided with a pressure plate 14 near the end of the long panel. The pressure plate 14 extends toward the long panel to cover a portion of the long panel. The top of the slider body 2 is provided with a serrated cutting portion 7, which, after cutting, allows the short panel 13 and the pin head 8 mounted thereon to move downward in a first direction.

[0033] Specifically, at least one end of the long panel is provided with a short panel 13 detachably connected to it in the extension direction of the long panel. Generally, one end is selected as the secondary height adjustment end, that is, a short panel 13 is detachably connected to this end of the long panel. A pressure plate 14 is provided on the side of the short panel 13 near the long panel. The pressure plate 14 is fixed to the sub-door by the second connector and presses the long panel so that it fits the surface of the sub-door. When the height of the door to be installed is relatively low (the height of the door to be installed is less than the height of the integrated device), a saw is used to cut the corresponding length (the height allowance of the integrated device above the door to be installed) of the slide body 2 and the long panel at the serrated cutting part 7. Then the cut long panel is installed with the short panel 13. Correspondingly, the mounting point of the pin head 8 on the short panel 13 is moved down. This embodiment can achieve on-site adaptation: solve the processing error of the door frame height; tool-free adjustment: no professional equipment is required, and ordinary personnel can operate it.

[0034] In a preferred embodiment, the rivet is riveted to the panel 1 through the clearance hole.

[0035] Specifically, both the long panel and the short panel 13 are provided with clearance holes corresponding to the position of the gourd hole 5; during installation, the fixing screw passes through the through hole in the center of the rivet, assembling the slide body 2 with the long panel and the pin head 8 with the short panel 13 to complete the complete assembly of the slide and the panel, and locking the panel to the sub-door.

[0036] In a preferred embodiment, the panel 1 is further provided with a secondary latch box, which has at least one secondary oblique lock docking groove 9 for docking with the secondary lock tongue on the main door.

[0037] Specifically, the secondary latch box is provided with two secondary bevel lock docking slots 9 for docking with the secondary lock tongue on the main door, and the secondary lock tongues are all beveled.

[0038] Furthermore, the panel 1 is also provided with a main latch box, which has a main oblique lock docking groove 11 and a main square lock docking groove 12 for docking with the main lock tongue on the main door.

[0039] Specifically, the main lock bolt includes a beveled bolt and a square bolt. The main lock box has a main beveled lock mating groove 11 corresponding to the beveled bolt and a main square lock mating groove 12 corresponding to the square bolt.

[0040] In a preferred embodiment, the secondary buckle box includes: A substrate, wherein the mating groove is provided on the substrate; At least one adjustment hole, the adjustment hole penetrating the substrate; An eccentric screw 10 passes through the adjustment hole to connect the substrate to the panel 1; A limiting groove is provided on the substrate. The screw portion of the eccentric screw 10 is threadedly connected to the panel 1. The head of the eccentric screw 10 is recessed into the limiting groove. When the eccentric screw 10 is rotated, its head moves along the limiting groove, causing the secondary buckle box to move laterally relative to the panel 1.

[0041] Furthermore, such as Figure 3 As shown, panel 1 is also provided with a main strike box corresponding to the main strike box on the main door. The main strike box is provided with a docking groove for docking with the main lock tongue on the main door. The docking groove for docking with the main lock tongue on the main door includes a main oblique lock docking groove 11 and a main square lock docking groove 12. The matching method is the same as that between the auxiliary lock and the auxiliary strike box.

[0042] Specifically, the secondary lock box and the main lock box are fixed to the panel 1 by bolts. The secondary oblique lock docking groove 9 has a 45° slope structure to guide the secondary lock tongue of the main door to slide in. The main square lock docking groove has a rectangular opening to engage the main lock tongue of the main door.

[0043] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An adjustable integrated locking plate and central control pin device, characterized in that, include: Panel (1), the panel (1) extends along a first direction and its length matches the length of the sub-door mounting groove; Central locking pin (3), which is detachably installed on the panel (1); A pair of sliding plate assemblies, the pair of sliding plate assemblies being slidably connected to the panel (1) and located on both sides of the central locking pin lock (3) along the first direction; each of the sliding plate assemblies includes a sliding plate body (2) extending along the first direction, the sliding plate body (2) being provided with at least one gourd hole (5), the gourd hole (5) including a connected circular fixing hole and a strip groove; The first connector (6) passes through the gourd hole (5) and the panel (1) in sequence, and slidably connects the slider assembly to the panel (1). The sliding direction of the slider body (2) is parallel to the first direction.

2. The adjustable integrated locking plate and central control pin integrated device according to claim 1, characterized in that: Each of the slide bodies (2) has a pin head (8) at the end away from the central locking pin (3), the pin head (8) extending along the first direction; the pin head (8) has an extended state and a retracted state, when in the extended state, the pin head (8) at least partially protrudes from the edge of the panel (1), when in the retracted state, the pin head (8) is completely retracted into the projection area of ​​the panel (1); the central locking pin (3) is used to control the pin head (8) to switch between the extended state and the retracted state.

3. The adjustable integrated locking plate and central control pin integrated device according to claim 2, characterized in that: The central locking pin lock (3) is provided with a bidirectional power output end, and a pair of sliding plate assemblies are respectively connected to the bidirectional power output end through a transmission structure; the sliding plate assembly is driven by the central locking pin lock (3) and slides towards or away from the central locking pin lock (3) under the transmission of the transmission structure, so that the pin head (8) switches between the extended state and the retracted state.

4. The adjustable integrated locking plate and central control pin integrated device according to claim 1, characterized in that: The first connector (6) includes: The rivet has a first through hole axially formed at its center; A fixing screw is provided, which can pass through the first through hole to lock the panel (1) to the sub-door.

5. The adjustable integrated locking plate and central control pin integrated device according to claim 2, characterized in that: The length of the strip groove limits the sliding stroke of the slide body (2) relative to the panel (1), and the sliding stroke corresponds to the extension stroke of the pin head (8).

6. The adjustable integrated locking plate and central control pin integrated device according to claim 2, characterized in that: The panel (1) includes a long panel and a short panel (13) detachably connected to the long panel. The short panel (13) is provided with a pressure plate (14) near the end of the long panel. The pressure plate (14) extends toward the long panel to cover part of the long panel. The top of the slider body (2) is provided with a serrated cutting part (7). After cutting, the short panel (13) and the pin head (8) installed thereon can be moved down in a first direction.

7. The adjustable integrated locking plate and central control pin integrated device according to claim 4, characterized in that: The panel (1) is provided with a clearance hole corresponding to the position of the gourd hole (5), and the rivet is riveted and fixed to the panel (1) through the clearance hole.

8. The adjustable integrated locking plate and central control pin integrated device according to claim 1, characterized in that: The panel (1) is also provided with a secondary latch box, which has at least one secondary oblique lock docking groove (9) for docking with the secondary lock tongue on the main door.

9. The adjustable integrated locking plate and central control pin integrated device according to claim 1, characterized in that: The panel (1) is also provided with a main latch box, which is provided with a main oblique lock docking groove (11) and a main square lock docking groove (12) for docking with the main lock tongue on the main door.

10. The adjustable integrated locking plate and central control pin integrated device according to claim 8, characterized in that: The secondary buckle box includes: A substrate, wherein the mating groove is provided on the substrate; At least one adjustment hole, the adjustment hole penetrating the substrate; An eccentric screw (10) passes through the adjustment hole to connect the substrate to the panel (1); The limiting groove is provided on the substrate. The screw part of the eccentric screw (10) is threadedly connected to the panel (1). The head of the eccentric screw (10) is sunk into the limiting groove. When the eccentric screw (10) is rotated, its head moves along the limiting groove, causing the secondary buckle box to move laterally relative to the panel (1).

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