An extremely narrow lock

Abstract

The application discloses an extremely narrow lock, a rotating head comprising an inner end head and an outer end head connected with each other, the inner end head is rotatably installed in a wall ring and the outer end head penetrates out of a lock shell, the inner end head is provided with a third notch in the circumferential direction, a lug is protruded on the circumferential wall of the inner end head, the lug is matched with the second notch to limit the rotating angle of the rotating head; the extremely narrow lock is provided with a wall ring which is in a whole barrel shape on the inner side of the lock shell, the wall ring is provided with a first notch and a second notch in the circumferential direction; the rotating head is rotatably installed in the wall ring and the lug is protruded on the circumferential wall; the lug is matched with the second notch to limit the rotating angle of the rotating head; a torsion spring is installed on the inner end head and is fixed with the first notch and the second notch, the rotating of the rotating head can be reset under the action of the torsion spring; thus, the work is stable while the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of lever handle locks, and in particular to an ultra-narrow lock. 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. For smaller doors, miniaturization while ensuring smooth operation is a key application focus. Utility Model Content

[0004] The main purpose of this utility model is to provide an ultra-narrow lock, which aims to solve the problem of poor size optimization of lever handle locks.

[0005] To achieve the above objectives, this utility model provides an extremely narrow lock, comprising: The lock case has an integral cylindrical wall ring on its inner side. The lock case has a first through hole corresponding to the wall ring, and the wall ring has a first notch and a second notch in the circumferential direction. A rotating head includes an inner end and an outer end connected to each other. The inner end is rotatably mounted in the wall ring while the outer end protrudes through the lock housing. The inner end has a third notch in the circumferential direction, and a protrusion is provided on the peripheral wall of the inner end. The protrusion matches the second notch to limit the rotation angle of the rotating head. A torsion spring is installed at the inner end and fixed to the wall ring, wherein the torsion spring is fixed to the first notch and the third notch; A rotating shaft is connected to the inner end and forms a circumferential fixation. A handle is attached to the outer end and forms a circumferential fixation.

[0006] Furthermore, the ultra-narrow lock also includes a linkage shaft and a turntable rotatably disposed on the handle, with a rod protruding from the turntable; the linkage shaft passes through the turntable and is freely disposed circumferentially; a sliding plate partially exposed inside the handle is slidably disposed; the handle is provided with an opening; the sliding plate is provided with an operating hole for the rod to pass through; a marking area is provided on the sliding plate corresponding to the opening; wherein, the sliding of the sliding plate drives the linkage shaft to rotate, and the positional relationship between the marking area and the opening switches.

[0007] Furthermore, the ultra-narrow lock also includes a fixing pin, which is elastically supported on the handle. The lock housing is provided with a locking hole for fixing the fixing pin at the inner end, and the sliding plate is provided with a limiting hole at the outer end of the fixing pin. During the sliding of the sliding plate, the outer end of the fixing pin engages with and disengages from the limiting hole.

[0008] 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 openings respectively.

[0009] Furthermore, the diameter of the inner end is larger than the diameter of the outer end, and a retaining ring is fixed on the outer end, which clamps the lock shell with the inner end.

[0010] Furthermore, a first annular lubrication ring is provided between the retaining ring and the lock housing.

[0011] Furthermore, a second annular lubricating ring is provided between the inner end and the lock housing.

[0012] Furthermore, the second lubricating ring is made of graphite or polytetrafluoroethylene.

[0013] Furthermore, the first gap and the second gap are spaced 180 degrees apart in the circumferential direction.

[0014] Furthermore, the lock housing, the rotating head, the rotating shaft, and the handle are made of aluminum alloy, stainless steel, or polymer.

[0015] The ultra-narrow lock provided by this utility model has a cylindrical wall ring on the inner side of the lock shell, with a first notch and a second notch on the circumference of the wall ring; a rotating head is rotatably installed in the wall ring and has a protrusion on the circumferential wall; the protrusion matches the second notch to limit the rotation angle of the rotating head; a torsion spring is installed on the inner end and is fixed with the first and second notches, so that the rotation of the rotating head can be reset under the action of the torsion spring; thus, while having a simple structure, stable operation is achieved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first embodiment of the ultra-narrow lock of this utility model (hidden part); Figure 2 This is a schematic diagram of the first embodiment of the ultra-narrow lock of this utility model; Figure 3 This is a schematic diagram of the rotating head in the ultra-narrow lock of the first embodiment of this utility model; Figure 4 This is a schematic diagram (first perspective) of the sliding plate in the ultra-narrow lock of the first embodiment of this utility model. Figure 5 This is a schematic diagram (second view) of the sliding plate in the ultra-narrow lock of the first embodiment of this utility model; Figure 6 This is a schematic diagram of the lock shell in the ultra-narrow lock of the first embodiment of this utility model; Figure 7 This is a schematic diagram of the handle and lock shell combined in the first embodiment of the ultra-narrow lock of this utility model; Figure 8 This is a schematic diagram of the installation of the sliding plate in the ultra-narrow lock according to the first embodiment of this utility model. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] Reference Figures 1 to 8 In one embodiment of this utility model, an ultra-narrow lock includes: The lock housing 100 has an integral cylindrical wall ring 110 on its inner side. The lock housing 100 has a first through hole corresponding to the wall ring 110. The wall ring 110 has a first notch 111 and a second notch 112 in the circumferential direction. The rotating head 200 includes an inner end 210 and an outer end 220 connected to each other. The inner end 210 is rotatably mounted in the wall ring 110, while the outer end 220 protrudes through the lock housing 100. The inner end 210 is provided with a third notch 211 in the circumferential direction, and a protrusion 212 is provided on the peripheral wall of the inner end 210. The protrusion 212 matches the second notch 112 to limit the rotation angle of the rotating head 200. A torsion spring 300 is installed on the inner end 210 and fixed to the wall ring 110, wherein the torsion spring 300 is fixed to the first notch 111 and the third notch 211; A rotating shaft 400 is connected to the inner end 210 and forms a circumferential fixation; The handle 500 is connected to the outer end 220 and forms a circumferential fixation.

[0021] In existing technologies, the key application direction is how to miniaturize lever locks while ensuring smooth use.

[0022] The ultra-narrow lock provided by this utility model includes a lock shell 100, a rotating head 200, a torsion spring 300, a rotating shaft 400, and a handle 500.

[0023] The lock housing 100 has a cylindrical wall ring 110 on its inner side. The lock housing 100 has a first through hole corresponding to the wall ring 110. The wall ring 110 has a first notch 111 and a second notch 112 in the circumferential direction. The circumferential angle between the first notch 111 and the second notch 112 is set according to the actual use.

[0024] The rotating head 200 includes an inner end 210 and an outer end 220 connected to each other. The inner end 210 is rotatably mounted in the wall ring 110, while the outer end 220 protrudes through the lock housing 100. The inner end 210 has a third notch 211 in the circumferential direction, and a protrusion 212 protrudes from the circumferential wall of the inner end 210. The protrusion 212 matches the second notch 112 to limit the rotation angle of the rotating head 200.

[0025] The torsion spring 300 is installed on the inner end 210 and fixed to the wall ring 110. The torsion spring 300 is spirally sleeved on the inner end 210 and its two ends extend into the first notch 111 and the third notch 211. At this time, the rotation of the rotating head 200 can be reset under the action of the torsion spring 300.

[0026] The rotating shaft 400 is connected to the inner end 210 and forms a circumferential fixation. For example, the rotating shaft 400 is a square shaft, and the inner end 210 is provided with a square groove corresponding to the rotating shaft 400.

[0027] The handle 500 is connected to the outer end 220 and is circumferentially fixed. The fixing method between the handle 500 and the outer end 220 can be varied.

[0028] In summary, the inner side of the lock housing 100 is provided with a cylindrical wall ring 110, and the wall ring 110 has a first notch 111 and a second notch 112 on its circumference; the rotating head 200 is rotatably installed in the wall ring 110 and has a protrusion 212 on its circumferential wall; the protrusion 212 matches the second notch 112 to limit the rotation angle of the rotating head 200; the torsion spring 300 is installed in the inner end 210 and is fixed with the first notch 111 and the second notch 112, and the rotation of the rotating head 200 can be reset under the action of the torsion spring 300; thus, while having a simple structure, stable operation is achieved.

[0029] Reference Figures 1 to 8 In one embodiment, the ultra-narrow lock further includes a linkage shaft 600 and a turntable 700 rotatably disposed on the handle 500, with a rod 710 protruding from the turntable 700; the linkage shaft 600 passes through the turntable 400 and is circumferentially free; a sliding plate 800 partially protruding from the handle 500 is slidably disposed inside the handle 500; the handle 500 is provided with an opening 510; the sliding plate 800 is provided with an operating hole 820 for the rod 710 to pass through; and a marking area 810 is provided on the sliding plate 800 corresponding to the opening 510; wherein, the sliding of the sliding plate 800 drives the linkage shaft 600 to rotate, and the positional relationship between the marking area 810 and the opening 510 switches.

[0030] In this embodiment, an indication is achieved by setting a marking area 810 (such as a red block) on the sliding plate 800. The positional relationship between the marking area 810 and the opening 510 indicates whether the ultra-narrow lock is in use. Rotation is transmitted through the linkage shaft 600, and the inner and outer sliding plates 800 are linked together.

[0031] Reference Figures 1 to 8In one embodiment, the ultra-narrow lock further includes a fixing pin, which is elastically supported on the handle 500. The lock housing 100 is provided with a locking hole for fixing the fixing pin corresponding to the inner end of the fixing pin. The sliding plate 800 is provided with a limiting hole corresponding to the outer end of the fixing pin. During the sliding of the sliding plate 800, the outer end of the fixing pin engages with and disengages from the limiting hole.

[0032] In this embodiment, a locking structure is provided, in which the interaction between the sliding plate 800 and the elastically supported fixing pin enables the fixing pin and the lock housing 100 to engage and release.

[0033] Reference Figures 1 to 8 In one embodiment, the marking area 810 includes two marking patterns spaced apart in the length direction, wherein when the slide plate 800 slides to both ends, the two marking patterns correspond to the window 510 respectively.

[0034] In this embodiment, a structural form of a marking area 810 is provided, and the marking pattern can be color blocks of different colors, such as red and green.

[0035] Reference Figures 1 to 8 In one embodiment, the diameter of the inner end 210 is larger than the diameter of the outer end 220, and a retaining ring is fixed on the outer end 220. The retaining ring and the inner end 210 clamp the lock housing 100.

[0036] In this embodiment, the diameter of the inner end 210 is increased to be larger than the diameter of the inner end 210, at which time the tendency of the rotating head 200 to slide outward is restricted; a retaining ring is introduced to restrict the tendency of the rotating head 200 to slide inward; thus, the position of the rotating head 200 is conveniently and stably fixed.

[0037] In one embodiment, an annular first lubrication ring is provided between the snap ring and the lock housing 100.

[0038] In this embodiment, the addition of a first lubricating ring reduces the resistance to the rotation of the rotating head 200. The first lubricating ring can be made of materials with lubricating effects, such as graphite or polytetrafluoroethylene.

[0039] In one embodiment, an annular second lubrication ring is provided between the inner end 210 and the lock housing 100.

[0040] In this embodiment, the addition of a second lubricating ring reduces the resistance to the rotation of the rotating head 200. The material of the second lubricating ring can be graphite or polytetrafluoroethylene, which have lubricating effects.

[0041] In one embodiment, the second lubricating ring is made of graphite or polytetrafluoroethylene.

[0042] In this embodiment, suitable material selections are provided for the first lubricating ring and the second lubricating ring.

[0043] In one embodiment, the first notch 111 and the second notch 112 are spaced 180 degrees apart in the circumferential direction.

[0044] In this embodiment, the first notch 111 and the second notch 112 are spaced 180 degrees apart, thereby ensuring the structural strength of the wall ring 110.

[0045] In one embodiment, the lock housing 100, the rotating head 200, the rotating shaft 400, and the handle 500 are made of aluminum alloy, stainless steel, or polymer.

[0046] In this embodiment, several common materials are limited, and an appropriate selection should be made in a specific scenario.

[0047] In summary, the ultra-narrow lock provided by this utility model has a cylindrical wall ring 110 on the inner side of the lock shell 100, with a first notch 111 and a second notch 112 on the circumference of the wall ring 110; a rotating head 200 is rotatably installed in the wall ring 110 and has a protrusion 212 on its circumferential wall; the protrusion 212 matches the second notch 112 to limit the rotation angle of the rotating head 200; a torsion spring 300 is installed in the inner end 210 and is fixed with the first notch 111 and the second notch 112, and the rotation of the rotating head 200 can be reset under the action of the torsion spring 300; thus, while having a simple structure, stable operation is achieved.

[0048] 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 extremely narrow lock, characterized in that, include: The lock housing (100) has an inner wall ring (110) that is cylindrical in shape. The lock housing (100) has a first through hole corresponding to the wall ring (110). The wall ring (110) has a first notch (111) and a second notch (112) in the circumferential direction. The rotating head (200) includes an inner end (210) and an outer end (220) connected to each other. The inner end (210) is rotatably mounted in the wall ring (110), while the outer end (220) protrudes from the lock housing (100). The inner end (210) has a third notch (211) in the circumferential direction. A protrusion (212) is provided on the peripheral wall of the inner end (210). The protrusion (212) matches the second notch (112) to limit the rotation angle of the rotating head (200). A torsion spring (300) is mounted on the inner end (210) and fixed to the wall ring (110), wherein the torsion spring (300) is fixed to the first notch (111) and the third notch (211); A rotating shaft (400) is connected to the inner end (210) and forms a circumferential fixation; The handle (500) is connected to the outer end (220) and forms a circumferential fixation.

2. The ultra-narrow lock according to claim 1, characterized in that, The ultra-narrow lock also includes a linkage shaft (600) and a turntable (700) rotatably disposed on the handle (500). A rod (710) protrudes from the turntable (700). The linkage shaft (600) passes through the turntable (400) and is circumferentially free. A sliding plate (800) partially protrudes from the handle (500) and is slidably disposed inside the handle (500). The handle (500) is provided with an opening (510). The sliding plate (800) is provided with an operation hole (820) for the rod (710) to pass through. A marking area (810) is provided on the sliding plate (800) corresponding to the opening (510). The sliding of the sliding plate (800) drives the linkage shaft (600) to rotate, and the positional relationship between the marking area (810) and the opening (510) switches.

3. The ultra-narrow lock according to claim 2, characterized in that, The ultra-narrow lock also includes a fixing pin, which is elastically supported on the handle (500). The lock housing (100) is provided with a locking hole for fixing the fixing pin corresponding to the inner end of the fixing pin. The sliding plate (800) is provided with a limiting hole corresponding to the outer end of the fixing pin. During the sliding of the sliding plate (800), the outer end of the fixing pin engages with and disengages from the limiting hole.

4. The ultra-narrow lock according to claim 2, characterized in that, The marking area (810) includes two marking patterns spaced apart in the length direction, wherein when the slide plate (800) slides to the two ends, the two marking patterns correspond to the window (510) respectively.

5. The ultra-narrow lock according to claim 1, characterized in that, The diameter of the inner end (210) is larger than the diameter of the outer end (220). A retaining ring is fixed on the outer end (220), and the retaining ring and the inner end (210) clamp the lock shell (100).

6. The ultra-narrow lock according to claim 5, characterized in that, A first annular lubrication ring is provided between the snap ring and the lock housing (100).

7. The ultra-narrow lock according to claim 6, characterized in that, A second annular lubrication ring is provided between the inner end (210) and the lock housing (100).

8. The ultra-narrow lock according to claim 7, characterized in that, The second lubricating ring is made of graphite or polytetrafluoroethylene.

9. The extremely narrow lock according to any one of claims 1 to 8, characterized in that, The first notch (111) and the second notch (112) are set at a circumferential interval of 180 degrees.

10. The ultra-narrow lock according to any one of claims 1 to 8, characterized in that, The lock housing (100), the rotating head (200), the rotating shaft (400), and the handle (500) are made of aluminum alloy, stainless steel, or polymer.

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