Ecological lock convenient to operate in emergency
By incorporating a sliding plate and linkage shaft within the lever lock, the problem of external users needing to turn the handle to detect when the door is locked is solved, enabling real-time status display and enhancing the user experience.
Patent Information
- Application Number
- CN202522372460.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-08
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-11-08
AI Technical Summary
When the existing lever lock is in the deadbolt position, external users need to try turning the handle to know that the door is locked, which causes inconvenience and trouble.
Design an emergency operation convenient eco-lock by setting a sliding plate and a linkage shaft inside the handle body. The sliding plate has a marking area. When the sliding plate slides, the marking area and the window correspond to the locked or unlocked state. The linkage transmits the sliding plate movement to lock or release the handle.
External users can instantly know the door's deadbolt status by observing the marked area, improving the user experience and avoiding the inconvenience of trying to turn the handle.
Smart Images

Figure CN223661575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lever handle locks, and in particular to an eco-friendly lock that is convenient for emergency operation. Background Technology
[0002] Lever locks are a widely used type of lock with diverse applications and scenarios. They are frequently used in modern office buildings, high-end apartment buildings, and other commercial and residential environments, and also play a vital role in the daily lives of ordinary families. These locks are typically installed on various room doors and bathroom doors, their core function being to ensure the security and privacy of these spaces and prevent unauthorized entry.
[0003] A lever handle lock typically consists of several parts, including a lock cylinder, lock housing, lock shaft, and handle assembly. Its working principle involves rotating the handle assembly to operate the lock shaft, which in turn acts on the lock cylinder, thus enabling the lock to be opened. Furthermore, lever handle locks usually have a deadbolt device on the inside; when activated, the lock cannot be opened from the outside, further enhancing security.
[0004] However, a significant drawback exists in practical applications: external users only realize the door is locked and occupied after attempting to turn the handle. This often causes inconvenience and frustration for external users, and also negatively impacts the user experience within the room. Therefore, improving the user experience while maintaining the basic functions of the lever lock has become a pressing issue. Utility Model Content
[0005] The main purpose of this utility model is to provide an eco-friendly lock that is convenient for emergency operation, aiming to solve the problem that users can only know that the door is locked after trying to turn the handle, which causes inconvenience and trouble to external users.
[0006] To achieve the above objectives, this utility model provides an emergency-operation-friendly eco-lock, comprising:
[0007] Two lock cases, plate-shaped with through holes;
[0008] A lock cylinder is disposed between the two lock housings;
[0009] Two mounting bases are respectively installed on the lock housing and mounting cylinders are provided corresponding to the through holes;
[0010] Two handle portions, each handle portion including a cover plate and a handle body rotatably mounted on the mounting cylinder, the side of the handle body away from the mounting base being open and closed by the cover plate, the cover plate being provided with a window;
[0011] A pivot shaft passes through the lock cylinder, the through hole, and the mounting base, with both ends of the pivot shaft extending from the central axis of the pivot shaft in the length direction to form linkage shafts;
[0012] A sliding plate is slidably disposed within the handle body along its length, with a portion of the sliding plate protruding from the handle body. An operation hole is provided on the sliding plate corresponding to the linkage shaft for the linkage shaft to pass through. A marking area is provided on the outer side of the sliding plate. The sliding of the sliding plate drives the rotating shaft to rotate, and the marking area is positioned in relation to the window.
[0013] A fixing pin is elastically supported on the handle body. The mounting base is provided with a locking hole for fixing the fixing pin at the inner end. The inner side of the slide plate is provided with a limiting hole corresponding to the outer end of the fixing pin. During the sliding of the slide plate, the outer end of the fixing pin engages with and disengages from the limiting hole.
[0014] An elastic element is connected between the handle body and the lock housing to reset the handle portion.
[0015] Furthermore, the marking area includes two marking patterns spaced apart along the length direction, wherein when the slide plate slides to both ends, the two marking patterns correspond to the window respectively.
[0016] Furthermore, the window has a hollow structure.
[0017] Furthermore, the operating hole is an oblong hole and is set along the width direction of the slide plate, and the width of the operating hole is consistent with the diameter of the linkage shaft.
[0018] Furthermore, the portion of the skateboard exposed outside the handle body is located on the inner side of the handle body.
[0019] Furthermore, a paddle is provided on a portion of the skateboard that protrudes from the handle body.
[0020] Furthermore, the elastic element is a helical spring type and is sleeved on the mounting cylinder.
[0021] Furthermore, the handle is made of metal or polymer material.
[0022] Furthermore, the rotating shaft includes two sub-shafts that are circumferentially fixed.
[0023] Furthermore, the slide plate is fixed in the thickness direction of the handle body by screws.
[0024] The emergency operation convenience ecological lock provided by this utility model has a slide plate that protrudes from the handle body and can serve as the basis for operating the slide plate. The two ends of the rotating shaft extend from the central axis of the rotating shaft in the length direction and have linkage shafts. The slide plate is provided with operation holes for the linkage shafts to pass through, and the slide plate is provided with marking areas corresponding to the window. By operating the inner slide plate, the handle can be locked and released. During this process, the marking areas on the inner slide plate and the window are positioned accordingly. Through the transmission of the rotating shaft, the outer slide plate also slides, and the marking areas on the outer slide plate and the window are positioned accordingly. Thus, the locked state can be displayed through the marking areas when the locking and unlocking actions are performed. Attached Figure Description
[0025] Figure 1 This is a schematic diagram (first-person view) of the first embodiment of the emergency operation convenient eco-lock of this utility model;
[0026] Figure 2 This is a schematic diagram (second perspective) of the first embodiment of the emergency operation convenient eco-lock of this utility model.
[0027] Figure 3 This is a schematic diagram of the first embodiment of the emergency operation convenient eco-lock of this utility model (cover plate hidden);
[0028] Figure 4 This is a schematic diagram (first perspective) of the sliding plate in the emergency operation convenient eco-lock of the first embodiment of this utility model;
[0029] Figure 5 This is a schematic diagram (second perspective) of the sliding plate in the emergency operation convenient eco-lock of the first embodiment of this utility model;
[0030] Figure 6 This is a schematic diagram of the central pivot of the emergency operation convenient eco-lock according to the first embodiment of this utility model;
[0031] Figure 7 This is a schematic diagram of the mounting base in the emergency operation convenient eco-lock of the first embodiment of this utility model;
[0032] Figure 8 This is a partial cross-sectional view (in the locked state) of the emergency operation convenient eco-lock of the first embodiment of this utility model.
[0033] Figure 9 This is a partial cross-sectional view (non-locked state) of the first embodiment of the emergency operation convenient ecological lock of this utility model.
[0034] Reference numerals: 100-lock housing, 200-mounting base, 210-mounting cylinder, 220-locking hole, 300-handle part, 310-handle body, 320-cover plate, 321-window, 400-rotating shaft, 410-linkage shaft, 420-sub-shaft, 500-slide plate, 510-operating hole, 520-marking area, 521-marking pattern, 530-limiting hole, 540-paddle, 600-fixing pin. Detailed Implementation
[0035] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0036] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.
[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.
[0038] Reference Figures 1 to 9 In one embodiment of this utility model, an emergency-operation-friendly eco-lock includes:
[0039] Two lock housings 100, plate-shaped with through holes;
[0040] A lock cylinder is disposed between the two lock housings 100;
[0041] Two mounting bases 200 are respectively installed on the lock housing 100 and mounting cylinders 210 are provided corresponding to the through holes;
[0042] Two handle portions 300, each handle portion 300 including a cover plate 320 and a handle body 310 rotatably mounted on the mounting cylinder 210. The side of the handle body 310 away from the mounting base 200 is open and closed by the cover plate 320. A window 321 is provided on the cover plate 320.
[0043] A rotating shaft 400 passes through the lock cylinder, the through hole, and the mounting base 200. Both ends of the rotating shaft 400 extend from the central axis of the rotating shaft 400 in the length direction, forming a linkage shaft 410.
[0044] A sliding plate 500 is slidably disposed within the handle body 310 along its length, with a portion of the sliding plate 500 protruding from the handle body 310. The sliding plate 500 is provided with an operation hole 510 corresponding to the linkage shaft 410 for the linkage shaft 410 to pass through. A marking area 520 is provided on the outer side of the sliding plate 500. The sliding of the sliding plate 500 drives the rotating shaft 400 to rotate, and the marking area 520 is positionally corresponding to the window 321.
[0045] A fixing pin 600 is elastically supported on the handle body 310. The mounting base 200 is provided with a locking hole 220 for fixing the fixing pin 600 at its inner end. The inner side of the sliding plate 500 is provided with a limiting hole 530 corresponding to the outer end of the fixing pin 600. During the sliding of the sliding plate 500, the outer end of the fixing pin 600 engages with and disengages from the limiting hole 530.
[0046] An elastic element is connected between the handle body 310 and the lock housing 100 to reset the handle portion 300.
[0047] In the existing technology, when an external user enters an internal room, they can only realize that the door has been locked after trying to turn the handle, thus realizing that the internal room has been occupied. This situation often causes inconvenience and annoyance to external users, and also affects the user experience of the users in the internal room, causing them inconvenience and discomfort.
[0048] The emergency operation convenient eco-lock provided by this utility model includes two lock shells 100, a lock cylinder, two mounting bases 200, two handles 300, a pivot 400, a sliding plate 500, and an elastic element.
[0049] Two lock housings 100 are installed on the door leaf. The lock housing 100 is plate-shaped and has through holes, providing a base for the subsequent pivot 400.
[0050] The lock cylinder is located between the two lock housings 100 and installed inside the door leaf.
[0051] Two mounting bases 200 are respectively installed on the outside of the lock housing 100. The mounting base 200 and the lock housing 100 can be connected by bolts, for example, the bolt passes through the mounting base 200 and is connected to the door leaf, thereby fixing the mounting base 200. A mounting sleeve 210 is provided on the outside of the mounting base 200 corresponding to the through hole.
[0052] Two handle portions 300 are respectively provided for two mounting bases 200. Each handle portion 300 includes a cover plate 320 and a handle body 310 rotatably mounted on a mounting cylinder 210. The handle body 310 can be sleeved onto the mounting cylinder 210. The side of the handle body 310 away from the mounting base 200 is open and closed by the cover plate 320. The cover plate 320 can be removed and installed to achieve closure and provide a base for mounting the internal components of the handle body 310. A window 321 is provided on the cover plate 320; the window 321 can be empty or made of light-transmitting material.
[0053] The pivot 400 is rotatably configured to pass through the lock cylinder, two through holes, and two mounting bases 200. Rotation of the pivot 400 operates the lock cylinder. Both ends of the pivot 400 extend into the two handle bodies 310 respectively. Linkage shafts 410 extend from both ends of the pivot 400 along its length, offset from its central axis. For example, a turntable is provided at both ends of the pivot 400, and the linkage shaft 410 is eccentrically positioned on the turntable.
[0054] The slide plate 500 is slidably disposed within the handle body 310 along its length. For example, multiple limiting posts within the handle body 310 restrict the slide plate 500, thus limiting its width and thickness while allowing it to move freely along its length. A portion of the slide plate 500 protrudes from the handle body 310, allowing its sliding to be operated. An operating hole 510 is provided on the slide plate 500 corresponding to the linkage shaft 410, through which the linkage shaft 410 passes. A marking area 520 is provided on the outer side of the slide plate 500. The sliding of the slide plate 500 drives the rotating shaft 400 to rotate, and the marking area 520 corresponds in position to the window 321. The marking area 520 can be two distinctly colored patterns; when the slide plate 500 slides to either end, the different patterns are revealed in the window 321 for observation, thus indicating the usage status.
[0055] An anti-lock mechanism is added. The fixing pin 600 can be elastically supported by a cylindrical helical spring. The inner end of the fixing pin 600 is fixed with the locking hole 220, and the outer end of the fixing pin 600 can be disengaged from the limiting hole 530 on the slide plate 500. When the slide plate 500 slides to one end, the fixing pin 600 engages with the limiting hole 530, and the handle 300 cannot be rotated. When the slide plate 500 slides to the other end, the fixing pin 600 disengages from the limiting hole 530, and the handle 300 can be rotated.
[0056] An elastic element is connected between the handle body 310 and the lock housing 100 to reset the handle portion 300. The elastic element can be a coil spring, etc.
[0057] During use, the handle 300 can be locked and released by operating the inner slide plate 500. During this process, the marking area 520 on the inner slide plate 500 corresponds to the window 321. Simultaneously, through the transmission of the pivot 400, the outer slide plate 500 also slides, and the marking area 520 on the outer slide plate 500 corresponds to the window 321. Therefore, the locked state can be displayed through the marking area 520 during locking and unlocking actions.
[0058] In summary, the portion of the skateboard 500 exposed above the handle body 310 serves as the basis for operating the skateboard 500. The two ends of the pivot 400 extend from the central axis of the pivot 400 along its length, forming a linkage shaft 410. The skateboard 500 has an operation hole 510 corresponding to the linkage shaft 410 for the linkage shaft 410 to pass through. The skateboard 500 has a marking area 520 corresponding to the window 321. By operating the inner skateboard 500, the handle 300 can be locked and released. During this process, the marking area 520 on the inner skateboard 500 corresponds to the window 321. Through the transmission of the pivot 400, the outer skateboard 500 also slides, and the marking area 520 on the outer skateboard 500 corresponds to the window 321. Therefore, the locked state can be displayed through the marking area 520 during the locking and unlocking actions.
[0059] Reference Figures 4 to 5 In one embodiment, the marking area 520 includes two marking patterns 521 spaced apart in the length direction, wherein when the slide plate 500 slides to both ends, the two marking patterns 521 correspond to the window 321 respectively.
[0060] In this embodiment, the marking area 520 is restricted, and the two marking patterns 521 can be a red icon and a green icon, respectively. When the slide 500 slides to both ends, the red icon and the green icon are exposed in the window 321 and can be observed.
[0061] In one embodiment, the window 321 has a hollow structure.
[0062] In this embodiment, the window 321 is defined as a hollow structure, thereby reducing processing costs and improving the observability of the marking area 520.
[0063] Reference Figures 4 to 5In one embodiment, the operating hole 510 is an oblong hole and is arranged along the width direction of the slide plate 500, and the width of the operating hole 510 is the same as the diameter of the linkage shaft 410.
[0064] In this embodiment, the operation hole 510 and the linkage shaft 410 are fitted together in the form of a waist hole. The width of the operation hole 510 is the same as the diameter of the linkage shaft 410, thereby making the sliding process smoother. Specifically, during the operation, as the slide plate 500 slides, the rotating shaft 400 rotates while the linkage shaft 410 slides along the length direction of the operation hole 510.
[0065] Reference Figures 8 to 9 In one embodiment, the portion of the skateboard 500 exposed outside the handle body 310 is disposed on the inner side of the handle body 310.
[0066] In this embodiment, the exposed portion is located on the inner side of the handle body 310, thereby ensuring the flatness of the outer panel and improving the user experience.
[0067] Reference Figures 8 to 9 In one embodiment, a paddle 540 is provided on a portion of the skateboard 500 that is exposed above the handle body 310.
[0068] In this embodiment, a paddle 540 is provided on the portion of the slide plate 500 of the handle 300 that protrudes from the handle body 310 inside the room, thereby improving the convenience of operation. However, the portion of the slide plate 500 protruding from the handle body 310 outside the room is not equipped with any convenience features and is only used in emergency situations.
[0069] In one embodiment, the elastic element is a helical spring type and is sleeved on the mounting cylinder 210.
[0070] In this embodiment, the elastic element is constrained to a helical spring, which offers advantages such as convenient installation and stable use. The two ends of the helical spring are respectively connected to the mounting base 200 and the handle body 310.
[0071] In one embodiment, the handle portion 300 is made of metal or polymer material.
[0072] In this embodiment, when the handle part 300 is made of metal, it can be made of aluminum or copper. When the handle part 300 is made of polymer, it can be made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, polycarbonate, polyurethane, polyamide, polysulfone, and polyetheretherketone, etc.
[0073] Reference Figure 6 In one embodiment, the rotating shaft 400 includes two sub-shafts 420 that are circumferentially fixed.
[0074] In this embodiment, considering that in some cases the diameter of the middle part of the rotating shaft 400 is small while the diameters at both ends are large, making installation impossible, the rotating shaft 400 is broken into two sub-shafts 420. The two sub-shafts 420 are circumferentially fixed at their inner ends, thereby enabling the transmission of rotation. The sub-shafts 420 can be circumferentially connected by a shaft groove fit, for example, one sub-shaft 420 has a protruding cross shaft, while the other sub-shaft 420 has a recessed cross groove.
[0075] Reference Figure 3 In one embodiment, the slide plate 500 is fixed in the thickness direction of the handle body 310 by screws.
[0076] In this embodiment, a method for fixing the slide plate 500 in the thickness direction is provided. For example, the slide plate 500 is fixed in the width direction by a limiting post on the handle body 310, while in the thickness direction it is fixed by screws. In a specific implementation, a waist-shaped hole is provided at a corresponding position on the slide plate 500, and the screw passes through the waist-shaped hole and connects to the handle body 310, with the screw head restricting the slide plate 500.
[0077] In summary, the emergency operation convenient eco-lock provided by this utility model has a portion of the slide plate 500 exposed on the handle body 310, which can serve as the basis for operating the slide plate 500. The two ends of the pivot 400 extend from the central axis of the pivot 400 in the length direction and have linkage shafts 410. The slide plate 500 is provided with operation holes 510 for the linkage shafts 410 to pass through, and the slide plate 500 is provided with marking areas 520 corresponding to the window 321. By operating the inner slide plate 500, the handle 300 can be locked and released. During this process, the marking area 520 on the inner slide plate 500 corresponds to the window 321. Through the transmission of the pivot 400, the outer slide plate 500 also slides. The marking area 520 on the outer slide plate 500 corresponds to the window 321. Thus, the locked state can be displayed through the marking area 520 when the locking and unlocking actions are performed.
[0078] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. An eco-friendly lock for convenient emergency operation, characterized in that, include: Two lock cases, plate-shaped with through holes; A lock cylinder is disposed between the two lock housings; Two mounting bases are respectively installed on the lock housing and mounting cylinders are provided corresponding to the through holes; Two handle portions, each handle portion including a cover plate and a handle body rotatably mounted on the mounting cylinder, the side of the handle body away from the mounting base being open and closed by the cover plate, the cover plate being provided with a window; A pivot shaft passes through the lock cylinder, the through hole, and the mounting base, with both ends of the pivot shaft extending from the central axis of the pivot shaft in the length direction to form linkage shafts; A sliding plate is slidably disposed within the handle body along its length, with a portion of the sliding plate protruding from the handle body. An operation hole is provided on the sliding plate corresponding to the linkage shaft for the linkage shaft to pass through. A marking area is provided on the outer side of the sliding plate. The sliding of the sliding plate drives the rotating shaft to rotate, and the marking area is positioned in relation to the window. A fixing pin is elastically supported on the handle body. The mounting base is provided with a locking hole for fixing the fixing pin at the inner end. The inner side of the slide plate is provided with a limiting hole corresponding to the outer end of the fixing pin. During the sliding of the slide plate, the outer end of the fixing pin engages with and disengages from the limiting hole. An elastic element is connected between the handle body and the lock housing to reset the handle portion.
2. The emergency operation convenient eco-lock according to claim 1, characterized in that, The marking area includes two marking patterns spaced apart along the length direction, wherein when the slide plate slides to both ends, the two marking patterns correspond to the window respectively.
3. The emergency operation convenient eco-lock according to claim 1, characterized in that, The window has a hollow structure.
4. The emergency operation convenient eco-lock according to claim 1, characterized in that, The operating hole is an oblong hole and is set along the width direction of the slide plate. The width of the operating hole is the same as the diameter of the linkage shaft.
5. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, The portion of the skateboard that protrudes from the handle body is located on the inside of the handle body.
6. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, A paddle is provided on a portion of the skateboard that protrudes from the handle body.
7. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, The elastic element is a helical spring and is sleeved on the mounting cylinder.
8. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, The handle is made of metal or polymer.
9. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, The rotating shaft includes two sub-shafts that are fixed circumferentially.
10. The emergency operation convenient eco-lock according to any one of claims 1 to 4, characterized in that, The slide plate is fixed in the thickness direction of the handle body by screws.