Locking mechanism with anti-misuse function

By designing a combination of transmission components and anti-mislocking components, the problem of passive opening of the locking mechanism due to misoperation is solved, thus protecting the lock tongue and profile and extending its service life.

CN224379559UActive Publication Date: 2026-06-19CMECH (GUANGZHOU) INDUSTRIAL LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CMECH (GUANGZHOU) INDUSTRIAL LTD
Filing Date
2025-06-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In traditional double doors, the locking mechanism can cause the passive door to open if the user accidentally operates the handle of the passive door after the active and passive doors are locked together, resulting in damage to the profiles and lock tongue and affecting the service life.

Method used

A locking mechanism including a transmission component and an anti-mislocking component is designed. The transmission component includes a transmission base and a transmission mechanism, and the anti-mislocking component includes an anti-mislocking base, an anti-mislocking rod, and an elastic element. Through the cooperation of the limiting part and the elastic element, the passive opening caused by misoperation is prevented, and the limiting effect is ensured when the lock tongue cooperates with the limiting part.

Benefits of technology

It effectively prevents the passive opening of the door due to misoperation, protects the profile and locking tongue, and extends the service life of the locking mechanism.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224379559U_ABST
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Abstract

The utility model belongs to door and window connecting structure technical field provides a locking mechanism with prevent mistake function, including transmission assembly and prevent mistake lock subassembly. Its installation is in the door and window sash, specifically, transmission assembly and prevent mistake lock subassembly are located at the passive fan of door and window sash, simultaneously, the lock bolt position of the lock body at the active fan of door and window sash corresponds with the position of prevent mistake lock rod, when the lock bolt of lock body acts prevent mistake lock rod and moves, makes the one end of prevent mistake lock rod cooperate with the limiting portion to prevent mistake lock rod to the movement of the transmission mechanism of transmission assembly and play the limiting effect.
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Description

Technical Field

[0001] This utility model belongs to the technical field of door and window connection structure, specifically relating to a locking mechanism with anti-misoperation function. Background Technology

[0002] Traditional double doors have a structure with an active and a passive door. After the active and passive doors are locked together, if the user accidentally operates the handle of the passive door, it will cause the door's locking mechanism to shift, thus opening the passive door. Because the bolt of the active door's lock body is still extended, the opening and movement of the passive door will cause damage to the profile and bolt, affecting the service life of the entire product. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a locking mechanism with anti-misoperation function.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A locking mechanism with anti-misoperation function includes a transmission component and an anti-misoperation locking component;

[0006] The transmission assembly includes a transmission base and a transmission mechanism. The transmission mechanism is disposed on the transmission base and has a transmission end that can slide relative to the transmission base. The transmission end is provided with a limiting part.

[0007] The anti-mislocking assembly includes an anti-mislocking base, an anti-mislocking rod, and an elastic element. The anti-mislocking rod is slidably engaged with the anti-mislocking base. The elastic element is connected to both the anti-mislocking base and the anti-mislocking rod. When the elastic element is in a compressed state, one end of the anti-mislocking rod engages with the limiting part. When the elastic element is in a free state, one end of the anti-mislocking rod is separated from the limiting part.

[0008] Preferably, the transmission mechanism includes a cam, a gear, an upper gear, and a lower gear. The cam and gear are rotatably engaged with the transmission base, and the upper and lower gears are slidably engaged with the transmission base. The upper gear is the transmission end of the transmission mechanism, and the upper and lower gears are provided with rack portions that mesh with the gears. One end of the cam engages with the upper gear.

[0009] Preferably, the upper tooth condition is provided with a mating groove that mates with one end of the cam component.

[0010] Preferably, the other end of the cam is provided with a first handle.

[0011] Preferably, the limiting part is a through hole structure.

[0012] Preferably, the anti-mislocking base is provided with a guide seat and a limiting panel, the guide seat is provided with a guide groove, the anti-mislocking rod slides with the guide seat through the guide groove, and the elastic element is sleeved on the anti-mislocking rod and located in the guide groove;

[0013] The position of the limiting panel corresponds to the position of the groove opening of the guide groove. The limiting panel is provided with a mating hole for the anti-mislocking rod to pass through. The outer wall surface of the anti-mislocking rod is provided with a limiting boss, which is located in the guide groove.

[0014] Preferably, the transmission assembly and the anti-mislocking assembly are located at the passive sash of the door / window sash, and the active sash of the door / window sash is provided with a lock body and a second handle. The second handle is connected to the lock body, and the position of the lock tongue of the lock body corresponds to the position of the other end of the anti-mislocking rod.

[0015] Compared with the prior art, the beneficial effects of this utility model include:

[0016] The locking mechanism of this application is installed on the door and window sash. Specifically, the transmission component and the anti-mislocking component are located on the passive sash of the door and window sash. At the same time, the position of the lock tongue of the lock body on the active sash of the door and window sash corresponds to the position of the anti-mislocking rod. When the lock tongue of the lock body moves the anti-mislocking rod, so that one end of the anti-mislocking rod cooperates with the limiting part, the anti-mislocking rod will limit the movement of the transmission mechanism of the transmission component. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model installed on a door or window sash.

[0019] Figure 2 This is a schematic diagram showing the release of the transmission component's limit by the anti-mislocking component of this utility model.

[0020] Figure 3 This is a schematic diagram showing how the anti-locking component of this utility model limits the movement of the transmission component.

[0021] Figure 4 This is a cross-sectional structural diagram of the anti-mislocking component of this utility model.

[0022] Figure 5This is a cross-sectional structural diagram of the transmission component of this utility model.

[0023] in:

[0024] 1-Transmission assembly, 101-Transmission seat, 102-Limiting part, 103-Cam part, 104-Gear part, 105-Upper tooth condition, 106-Lower tooth condition, 107-Rack part, 108-Matching groove, 109-First handle part;

[0025] 2-Anti-lock component, 201-Anti-lock base, 202-Anti-lock rod, 203-Elastic element, 204-Guide seat, 205-Limiting panel, 206-Guide groove, 207-Limiting boss;

[0026] 3-Passive Fan;

[0027] 4-Active fan, 401-Second handle component;

[0028] 5-Lock body, 501-Lock tongue. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] Example:

[0032] like Figure 1-5 As shown, this embodiment provides a locking mechanism with anti-misoperation function, including a transmission component 1 and an anti-misoperation locking component 2;

[0033] The transmission assembly 1 includes a transmission base 101 and a transmission mechanism. The transmission mechanism is disposed on the transmission base 101 and has a transmission end that can slide relative to the transmission base 101. The transmission end is provided with a limiting part 102.

[0034] The anti-mislocking component 2 includes an anti-mislocking base 201, an anti-mislocking rod 202, and an elastic element 203. The anti-mislocking rod 202 is slidably engaged with the anti-mislocking base 201. The elastic element 203 is connected to both the anti-mislocking base 201 and the anti-mislocking rod 202. When the elastic element 203 is in a compressed state, one end of the anti-mislocking rod 202 engages with the limiting part 102. When the elastic element 203 is in a free state, one end of the anti-mislocking rod 202 is separated from the limiting part 102.

[0035] The locking mechanism with anti-misoperation function in this embodiment is installed on the door and window sash. Specifically, the transmission component 1 and the anti-misoperation locking component 2 are located at the passive sash 3 of the door and window sash. At the same time, the position of the latch 501 of the lock body 5 at the active sash 4 of the door and window sash corresponds to the position of the anti-misoperation locking rod 202. When the latch 501 of the lock body 5 moves the anti-misoperation locking rod 202, so that one end of the anti-misoperation locking rod 202 cooperates with the limiting part 102, the anti-misoperation locking rod 202 limits the movement of the transmission mechanism of the transmission component 1.

[0036] The specific structure of the transmission mechanism in this embodiment is as follows:

[0037] The transmission mechanism includes a cam 103, a gear 104, an upper gear condition 105, and a lower gear condition 106. The cam 103 and gear 104 are rotatably engaged with the transmission base 101. The upper gear condition 105 and lower gear condition 106 are slidably engaged with the transmission base 101. The upper gear condition 105 is the transmission end of the transmission mechanism. The upper gear condition 105 and lower gear condition 106 are provided with rack portions 107 that mesh with the gear condition. One end of the cam 103 is engaged with the upper gear condition 105.

[0038] Specifically, the upper gear condition 105 is provided with a mating groove 108 that mates with one end of the cam component 103.

[0039] Specifically, the other end of the cam 103 is provided with a first handle 109.

[0040] Specifically, the limiting part 102 has a through hole structure.

[0041] In the above structure, the opening and closing of the passive sash 3 is achieved by the operation of the first handle 109. When the bolt 501 of the lock body 5 extends and abuts against the other end of the anti-mislocking rod 202, the active sash 4 of the door and window is in a closed and locked state. That is, when one end of the anti-mislocking rod 202 is engaged with the limiting part 102, the movement of the upper tooth condition 105 is limited. Under the meshing structure of the tooth condition and the rack part 107, the rotation of the gear part 104 and the cam part 103 can be limited, thereby limiting the first handle 109.

[0042] When the first handle 109 is released from its limit, one end of the anti-mislocking rod 202 needs to be separated from the limiting part 102. At this time, the bolt 501 of the lock body 5 retracts, and under the action of the elastic member 203, the position of the anti-mislocking rod 202 is restored, so that one end of the anti-mislocking rod 202 is separated from the limiting part 102, thereby releasing the locking effect of the transmission assembly 1, that is, releasing the limit on the first handle 109. Thus, the cam member 103 can be driven to rotate through the first handle 109, and the upper tooth condition 105 and the lower tooth condition 106 can be slid through the gear member 104, so that the passive sash 3 of the door and window can be opened.

[0043] In this embodiment, the specific structure of the anti-locking component 2 is as follows:

[0044] The anti-mislocking base 201 is provided with a guide seat 204 and a limiting panel 205. The guide seat 204 is provided with a guide groove 206. The anti-mislocking rod 202 slides with the guide seat 204 through the guide groove 206. The elastic element 203 is sleeved on the anti-mislocking rod 202 and is located in the guide groove 206.

[0045] The position of the limiting panel 205 corresponds to the position of the groove of the guide groove 206. The limiting panel 205 is provided with a mating hole for the anti-mislocking rod 202 to pass through. The outer wall surface of the anti-mislocking rod 202 is provided with a limiting boss 207, which is located in the guide groove 206.

[0046] The above structure facilitates the installation of the anti-mislocking rod 202, the elastic element 203, and the anti-mislocking seat 201. At the same time, the structure of the limiting panel 205 and the limiting boss 207 can prevent the anti-mislocking rod 202, the elastic element 203, and the guide seat 204 from separating, ensuring the overall stability of use.

[0047] A second handle 401 is provided at the active sash 4 of the door and window sash. The second handle 401 is connected to the lock body 5. The user can extend or retract the bolt 501 of the lock body 5 through the second handle 401.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A locking mechanism with anti-misoperation function, characterized in that, include: Transmission components and anti-locking components; The transmission assembly includes a transmission base and a transmission mechanism. The transmission mechanism is disposed on the transmission base and has a transmission end that can slide relative to the transmission base. The transmission end is provided with a limiting part. The anti-mislocking assembly includes an anti-mislocking base, an anti-mislocking rod, and an elastic element. The anti-mislocking rod is slidably engaged with the anti-mislocking base. The elastic element is connected to both the anti-mislocking base and the anti-mislocking rod. When the elastic element is in a compressed state, one end of the anti-mislocking rod engages with the limiting part. When the elastic element is in a free state, one end of the anti-mislocking rod is separated from the limiting part.

2. The lock mechanism with a mistake preventing function according to claim 1, wherein The transmission mechanism includes a cam, a gear, an upper gear, and a lower gear. The cam and gear are rotatably engaged with the transmission base. The upper and lower gears are slidably engaged with the transmission base. The upper gear is the transmission end of the transmission mechanism. The upper and lower gears are provided with rack portions that mesh with the gears. One end of the cam engages with the upper gear.

3. The lock mechanism with a mistake prevention function according to claim 2, characterized in that, The upper tooth is provided with a mating groove that mates with one end of the cam component.

4. The lock mechanism with a mistake preventing function according to claim 2, wherein The other end of the cam component is provided with a first handle component.

5. The lock mechanism with a mistake preventing function according to claim 1, wherein The limiting part has a through hole structure.

6. The locking mechanism with anti-misoperation function according to claim 1, characterized in that, The anti-mislocking base is provided with a guide seat and a limiting panel. The guide seat is provided with a guide groove. The anti-mislocking rod slides with the guide seat through the guide groove. The elastic element is sleeved on the anti-mislocking rod and is located in the guide groove. The position of the limiting panel corresponds to the position of the groove opening of the guide groove. The limiting panel is provided with a mating hole for the anti-mislocking rod to pass through. The outer wall surface of the anti-mislocking rod is provided with a limiting boss, which is located in the guide groove.

7. The lock mechanism with a mistake preventing function according to claim 1, wherein The transmission assembly and the anti-mislocking assembly are located at the passive sash of the door and window sash. The active sash of the door and window sash is provided with a lock body and a second handle. The second handle is connected to the lock body. The position of the lock tongue of the lock body corresponds to the position of the other end of the anti-mislocking rod.