Multi-point locking device of door system

By rationally arranging components such as the first moving frame, the second moving frame, and gears, the problem of sliding friction loss of the locking tongue was solved, achieving smoothness and stability of the locking device and ensuring the reliability of multi-point locking.

CN223753885UActive Publication Date: 2026-01-02NANJING YUQI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202520095251.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-01-02
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Frictional wear occurs when the bolt slides within the bolt guide seat, resulting in poor smoothness of the bolt's horizontal movement.

Method used

The design incorporates a rational layout of components such as a first movable frame, a second movable frame, gears, toothed plates, and connecting rods and blocks connected to the rotating arm. It also features a design that allows the rotating arm and mounting column to rotate through bearings, as well as a sliding fit between the connecting rod and the movable frame, ensuring smooth movement and stable linkage.

Benefits of technology

This reduces frictional loss, ensuring that the locking device maintains reliable locking performance and stability even after prolonged use, without taking up too much space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-point locking device of a door system, and relates to the technical field of multi-point locking. Comprising a door body, spring bolt extending grooves are formed in the two sides of the side edge, the top edge and the bottom edge of the door body, rotating arms are arranged on the inner walls of the multiple spring bolt extending grooves in a rotating fit mode, spring bolt columns are arranged on one sides of the rotating arms, a button lock block is arranged on the side edge of the door body in a rotating fit mode, and a multi-point locking assembly is arranged between the button lock block and the multiple rotating arms. By reasonably arranging the first moving frame, the second moving frame, the gear, the toothed plate, the connecting rod connected with the rotating arm, the connecting block and other components, arranging the rotating arm and the mounting column to be in rotating fit through the bearing, and designing the connecting rod and the moving frames to be in sliding fit, the smoothness of all the components in the moving process is guaranteed, friction loss is reduced, and the service life of the components is prolonged. And the linkage accuracy and stability are ensured, and the reliable locking performance can still be maintained after repeated use for multiple times.
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Description

TECHNICAL FIELD

[0001] The utility model relates to multi -point locking technical field, specifically, relate to a door system's multi -point locking device. BACKGROUND

[0002] Practical new type patent application number: CN201920462516.6, disclosed a kind of armored vehicle window door multi -point automatic locking mechanism, including swing arm, electric cylinder, lock tongue guide seat, connecting rod and pull rod.The locking mechanism is automatic, power source is electric cylinder, when electric cylinder telescopes, swing arm rotates around swing arm support, the three ends of swing arm are connected three connecting rods by pull rod, connecting rod is connected with three lock tongues along linear bearing and three lock tongues, lock tongue is under the action of connecting rod, along lock tongue guide seat extends and retracts, lock tongue and window door frame fit and release, realize the locking and unlocking function of window door;

[0003] The above-mentioned patent rotates swing arm and drives the lock tongue on multiple connecting rods to slide in lock tongue guide seat, so that the lock tongue extends or retracts in door body to carry out multi-point locking, and the sliding of lock tongue in lock tongue guide seat will generate friction loss under long-time use, thereby causing the smoothness of horizontal movement of lock tongue to be poor.

[0004] Therefore, we improve it, and propose a multi-point locking device of door system. UTILITY MODEL CONTENT

[0005] The utility model aims at: in view of the sliding of lock tongue in lock tongue guide seat under long-time use will generate friction loss, thereby causing the smoothness of horizontal movement of lock tongue to be poor.

[0006] In order to realize the above-mentioned utility model purpose, the utility model provides the following technical scheme:

[0007] A multi-point locking device of door system is provided to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] It includes door body, lock tongue extension slot is set up in the side of door body and top edge and bottom edge, a plurality of lock tongue extension slot inner wall is rotatably connected with swing arm, the swing arm is equipped with lock tongue column on one side, the side of door body is rotatably connected with button lock block, button lock block and a plurality of swing arms are provided with multi-point locking assembly, the multi-point locking assembly includes first mobile frame and second mobile frame slidingly fitted in door body.

[0010] By reasonably arranging the first moving frame, the second moving frame, the gear, the toothed plate, the connecting rod connected with the rotating arm, the connecting block and other components, rotating cooperation between the rotating arm and the mounting column and sliding cooperation between the connecting rod and the moving frame are arranged, so that the smoothness of the components in the movement process is ensured, the friction loss is reduced, the accuracy and stability of the linkage are ensured, and reliable locking performance can be maintained after repeated use for many times.

[0011] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the inner wall of each of the plurality of lock tongue extension grooves is provided with a mounting groove, the inner wall of the mounting groove is provided with a mounting column, and the rotating arm is in rotating cooperation with the mounting column.

[0012] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the side edge of the rotating arm is provided with a mounting hole, a bearing is mounted on the circumferential side of the mounting column, the bearing is mounted on the inner wall of the mounting hole, and the end portion of the rotating arm is provided with a connecting shaft.

[0013] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the inside of the door body is provided with a sliding groove, and the first moving frame and the second moving frame are respectively in sliding cooperation on the two sides of the sliding groove.

[0014] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the side edge of the button lock block is provided with a connecting column, one end of the connecting column penetrating into the inside of the door body is provided with a gear, the opposite sides of the first moving frame and the second moving frame are respectively provided with toothed plates, and the gear is located between the two toothed plates and is in engagement with the toothed plates.

[0015] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the connecting shafts of the two rotating arms located on the side edges of the door body are respectively provided with first connecting blocks in rotating cooperation, the opposite sides of the two first connecting blocks are respectively provided with first connecting rods, and the upper and lower ends of the first moving frame are respectively provided with the first connecting rods in sliding cooperation.

[0016] As a preferred embodiment of the multi-point locking device of the door system provided by the utility model, the connecting shafts of the two rotating arms located on the top edge and the bottom edge of the door body are respectively provided with second connecting blocks in rotating cooperation, the opposite sides of the two second connecting blocks are respectively provided with second connecting rods, and the upper and lower ends of the second moving frame are respectively provided with the second connecting rods in sliding cooperation.

[0017] Compared with the prior art, the utility model discloses the beneficial effect has: through first mobile frame, second mobile frame, gear, toothed plate and with the connecting rod of connecting arm, connecting block etc. reasonable layout, set up connecting arm and install the column through bearing rotation cooperation, and the sliding fit design between connecting rod and mobile frame, both ensure the smoothness of each component in the movement process, reduce friction loss, guarantee the accuracy and stability of linkage again, still can maintain reliable locking performance after repeated use for many times. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure schematic diagram of the multipoint locking device of the door system provided in the application is provided.

[0019] Figure 2 The structure schematic diagram that the lock tongue column is located in the door body is provided in the application.

[0020] Figure 3 The structure schematic diagram that the lock tongue column is located in the door body is provided in the application.

[0021] Figure 4 The partial structure schematic diagram of the multipoint locking assembly provided in the application is provided.

[0022] Figure 5 The partial structure schematic diagram of the multipoint locking assembly provided in the application is provided.

[0023] Indicated in the drawing:

[0024] 1, door body, 2, lock tongue extension groove, 3, connecting arm, 4, lock tongue column, 5, button lock block, 6, multipoint locking assembly, 601, first mobile frame, 602, second mobile frame, 603, toothed plate, 604, first connecting block, 605, first connecting rod, 606, second connecting block, 607, second connecting rod, 608, installation groove, 609, installation column, 610, mounting hole, 611, bearing, 612, connecting shaft, 7, connecting column, 8, gear, 9, sliding slot. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantage of the utility model embodiment more clear, below, to the technical scheme in the utility model embodiment, clear, complete description is carried out.Certainly, the described embodiment is the part embodiment of the utility model, not all the embodiment.

[0026] Therefore, the following detailed description of the embodiment of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection.

[0027] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0028] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0029] In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms such as 'upper', 'lower' is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, or the orientation or position relationship commonly understood by the person skilled in the art, such terms are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms 'first','second' and the like are only used for differentiation in description, and cannot be understood as indicative or suggestive of relative importance.

[0030] In order for the person skilled in the art to better understand the utility model scheme, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings.

[0031] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] Embodiment 1

[0034] Please refer to Figures 1-5 A multi-point locking device of a door system, comprising: a door body 1, lock tongue extension grooves 2 are formed on both sides of the side edge and the top edge and the bottom edge of the door body 1, rotating arms 3 are rotatably arranged on the inner walls of the plurality of lock tongue extension grooves 2, lock tongue columns 4 are arranged on one side of the rotating arms 3, a button lock block 5 is rotatably arranged on the side edge of the door body 1, a multi-point locking assembly 6 is arranged between the button lock block 5 and the plurality of rotating arms 3, the multi-point locking assembly 6 comprises a first moving frame 601 and a second moving frame 602 which are slidingly arranged in the door body 1. The inner walls of the plurality of lock tongue extension grooves 2 are provided with mounting grooves 608, mounting columns 609 are arranged on the inner walls of the mounting grooves 608, the rotating arms 3 are rotatably arranged with the mounting columns 609. The side edge of the rotating arm 3 is provided with a mounting hole 610, bearings 611 are mounted on the circumferential side of the mounting column 609, the bearings 611 are mounted on the inner walls of the mounting hole 610, and a connecting shaft 612 is arranged on the end of the rotating arm 3.

[0035] The implementation process: the mounting column 609 is matched with the mounting hole 610 of the rotating arm 3 through the bearing 611, ensuring smooth rotation. During the rotation of the rotating arm 3, the lock tongue column 4 arranged on one side of the rotating arm 3 will be extended out of the lock tongue extension slot 2 along with the movement of the rotating arm 3, realizing the side locking action. The design of the rotating cooperation between the rotating arm 3 and the mounting column 609 through the bearing 611 and the sliding cooperation between the connecting rod and the moving frame ensures the smoothness of each component during the movement, reduces the friction loss, and ensures the accuracy and stability of the linkage. After repeated use for many times, the reliable locking performance can still be maintained. The multi-point locking assembly 6 ingeniously uses the internal space of the door body 1 to reasonably arrange the first moving frame 601, the second moving frame 602, the gear 8, the toothed plate 603, and the connecting rod and connecting block connected with the rotating arm 3, etc. components, realizing the multi-point locking function while not occupying too much additional space, so that the whole door system structure still maintains a relatively compact structure, and does not affect the overall beauty and installation adaptability of the door body.

[0036] The implementation benefits: the rotating cooperation between the rotating arm 3 and the mounting column 609 through the bearing 611 ensures the smoothness of each component during the movement, reducing the friction loss.

[0037] Example 2

[0038] The door body 1 is internally provided with a sliding groove 9, and the first moving frame 601 and the second moving frame 602 are respectively slidably matched on both sides of the sliding groove 9. The side of the button lock block 5 is provided with a connecting column 7, one end of the connecting column 7 penetrating into the interior of the door body 1 is provided with a gear 8, and the opposite sides of the first moving frame 601 and the second moving frame 602 are respectively provided with toothed plates 603. The gear 8 is located between the two toothed plates 603 and is engaged with them. The connecting shaft 612 of the two rotating arms 3 located on the side of the door body 1 is rotatably matched with a first connecting block 604, and the opposite sides of the two first connecting blocks 604 are respectively provided with first connecting rods 605. The two first connecting rods 605 are respectively slidably matched on the upper and lower ends of the first moving frame 601. The connecting shaft 612 of the two rotating arms 3 located on the top and bottom edges of the door body 1 is rotatably matched with a second connecting block 606, and the opposite sides of the two second connecting blocks 606 are respectively provided with second connecting rods 607. The two second connecting rods 607 are respectively slidably matched on the upper and lower ends of the second moving frame 602.

[0039] The implementation process is as follows: when the door body 1 needs to be locked, the knob block 5 is rotated, the connecting column 7 at the side of the knob block 5 is rotated, and the gear 8 at the end of the connecting column 7 is synchronously rotated. Since the gear 8 is located between the toothed plates 603 at the opposite sides of the first moving frame 601 and the second moving frame 602 and is engaged with the toothed plates 603, the rotation of the gear 8 drives the first moving frame 601 and the second moving frame 602 to slide in the sliding grooves 9 in the door body 1 in opposite directions. For the rotating arm 3 located at the side of the door body 1, the upper and lower ends of the first moving frame 601 are respectively slidably connected with the first connecting rods 605 connected thereto, and the first connecting rods 605 are rotationally connected with the connecting shaft 612 of the rotating arm 3 through the first connecting blocks 604. When the first moving frame 601 moves, the rotating arm 3 is driven to rotate around the mounting column 609 through the first connecting rods 605 and the first connecting blocks 604, and the mounting column 609 is connected with the mounting hole 610 of the rotating arm 3 through the bearing 611, so that the rotation is smooth. During the rotation of the rotating arm 3, the lock tongue column 4 arranged at one side of the rotating arm 3 is extended out of the lock tongue extension slot 2, so that the side locking action is realized. Similarly, for the rotating arms 3 located at the top and bottom edges of the door body 1, the upper and lower ends of the second moving frame 602 are respectively slidably connected with the second connecting rods 607 connected thereto, and the second connecting rods 607 are rotationally connected with the connecting shaft 612 of the rotating arm 3 through the second connecting blocks 606. When the second moving frame 602 moves, the rotating arms 3 at the top and bottom edges are driven to rotate around the respective mounting columns 609, so that the lock tongue column 4 is extended out of the lock tongue extension slot 2, the top and bottom locking actions are completed, and the multi-point simultaneous locking of the door body 1 is realized. When unlocking, the knob block 5 is reversely rotated, the gear 8 drives the first moving frame 601 and the second moving frame 602 to move in the opposite direction, the rotating arms 3 are reversely rotated through the connecting rods and the connecting blocks, the lock tongue column 4 is retracted into the lock tongue extension slot 2, and the door body 1 is unlocked.

[0040] The implementation benefits are as follows: the rotating arms 3 are rotationally connected with the mounting columns 609 through the bearings 611, so that the smoothness of the movement of the components is ensured, and the friction loss is reduced.

[0041] The above embodiments are only used to illustrate the technical solutions described in the utility model and do not limit the utility model. Although the utility model has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific implementation manners, and any modification or equivalent replacement of the utility model is included in the scope of the utility model.

Claims

1. A multipoint locking device for a door system, characterized in that Include: Door body (1), the two sides of the side edge of the door body (1) are provided with lock tongue extension grooves (2) on the top edge and the bottom edge, a plurality of inner walls of the lock tongue extension grooves (2) are rotatably connected with rotating arms (3), one side of the rotating arm (3) is provided with a lock tongue column (4), the side edge of the door body (1) is rotatably connected with a button lock block (5), a plurality of rotating arms (3) and the button lock block (5) are provided with a multi-point locking assembly (6), the multi-point locking assembly (6) comprises a first moving frame (601) and a second moving frame (602) which are slidably connected in the door body (1).

2. A multipoint locking device for a door system according to claim 1, characterized in that A plurality of inner walls of the lock tongue extension grooves (2) are provided with mounting grooves (608), the inner wall of the mounting groove (608) is provided with a mounting column (609), the rotating arm (3) and the mounting column (609) are rotatably connected.

3. A multipoint locking device for a door system according to claim 2, wherein The side edge of the rotating arm (3) is provided with a mounting hole (610), the mounting column (609) is provided with a bearing (611) on the circumferential side, the bearing (611) is mounted on the inner wall of the mounting hole (610), and the end of the rotating arm (3) is provided with a connecting shaft (612).

4. A multipoint locking device for a door system according to claim 1, wherein The inside of the door body (1) is provided with a sliding groove (9), the first moving frame (601) and the second moving frame (602) are slidably connected on the two sides of the sliding groove (9).

5. A multipoint locking device for a door system according to claim 1, wherein The side edge of the button lock block (5) is provided with a connecting column (7), one end of the connecting column (7) penetrating into the inside of the door body (1) is provided with a gear (8), the opposite sides of the first moving frame (601) and the second moving frame (602) are provided with toothed plates (603), and the gear (8) is located between the two toothed plates (603) and is engaged with the toothed plates (603).

6. A multipoint locking device for a door system according to claim 3 wherein, The connecting shaft (612) of the two rotating arms (3) located on the side edge of the door body (1) is rotatably connected with a first connecting block (604), the opposite sides of the two first connecting blocks (604) are provided with first connecting rods (605), and the upper and lower ends of the first moving frame (601) are slidably connected with the two first connecting rods (605) respectively.

7. A multipoint locking device for a door system according to claim 3 wherein, The connecting shaft (612) of the two rotating arms (3) located on the top edge and the bottom edge of the door body (1) is rotatably connected with a second connecting block (606), the opposite sides of the two second connecting blocks (606) are provided with second connecting rods (607), and the upper and lower ends of the second moving frame (602) are slidably connected with the two second connecting rods (607) respectively.

Citation Information

Patent Citations

  • Multi-point automatic locking mechanism for windows and doors of armored vehicles

    CN210033010U