CN204571493U - Crescent lock - Google Patents

Abstract

The crescent lock comprises a lock seat, a cover plate, a lock handle, a first elastic element and a limiting component; the cover plate covers the lock seat, the lock handle penetrates through the cover plate and can be rotatably installed on the lock seat, the limiting assembly is arranged in the lock seat and used for positioning the lock handle relative to the rotating motion of the lock seat, and the first elastic element is arranged between the cover plate and the lock handle and used for enabling the cover plate to be opposite to a space where the lock seat is separated and providing restoring force for moving in the direction close to the lock seat. The utility model discloses well apron lid fits and hides lock seat and the screw on it on the lock seat, makes whole crescent moon lock outward appearance keep unanimous, and is muddy as an organic whole, has greatly improved crescent moon lock's pleasing to the eye. Meanwhile, the cover plate can be lifted and rotated by a certain angle relative to the lock seat under the action of external force, so that the cover plate is separated from the lock seat and staggered by a certain angle, the lock seat is convenient to mount, the whole mounting process is convenient and rapid, and the mounting efficiency is improved.

Description

Crescent lock

technical field

The utility model relates to a hardware fitting for a door and window of a house, in particular to a crescent lock.

Background technique

With the continuous improvement of living standards, people's pursuit of quality of life is getting higher and higher, and the corresponding requirements for door and window hardware accessories are also increasing. The products not only require beautiful and generous appearance, but also convenient and fast installation and use. advanced features.

Traditional crescent locks are applied to doors and windows as handles for opening and locking doors and windows. However, the existing crescent lock has a complex and time-consuming installation process due to the large number of components.

Utility model content

Based on this, it is necessary to provide a crescent lock which is simple and convenient to install.

The crescent lock includes a lock base, a cover plate, a lock handle, a first elastic element and a stopper assembly; the cover plate is set on the lock base and can be moved away from the lock base under the action of an external force. The lock base is separated and rotates relative to the lock base, the lock handle is rotatably mounted on the lock base through the cover plate, and the limit assembly is arranged in the lock base for adjusting the The lock handle is positioned relative to the rotation movement of the lock seat, and the first elastic element is arranged between the cover plate and the lock handle to provide a space for the cover plate to separate from the lock seat and Provide a restoring force to move towards the lock seat.

In one of the embodiments, a first elastic arm and a second elastic arm are provided on opposite sides of the first elastic element, and the crescent lock also includes a spring that is threaded on the lock handle and rotates with the lock handle. A lock ring, a certain elastic space is formed between the first elastic arm and the second elastic arm, and the two abut against the cover plate and the lock ring respectively.

In one embodiment, the first elastic element is an annular elastic washer that abuts between the anvil seat and the locking ring.

In one embodiment, the first elastic element is an annular plastic gasket that abuts between the anvil seat and the lock ring.

In one of the embodiments, the middle part of the lock seat is provided with a through hole for the lock handle to pass through, and the surface of the cover plate opposite to the lock seat is provided with a hole coaxial with the through hole and communicated with each other. the perforation; the surface of the cover plate facing away from the lock seat is centered on the perforation and along the edge of the perforation is provided with an annular flange, and a receiving groove is formed between the flange and the surface of the cover plate, The first elastic element is sheathed on the flange and accommodated in the receiving groove.

In one of the embodiments, the limiting assembly includes a limiting frame, a limiting washer and a positioning piece, the limiting frame is fixedly accommodated in the lock seat and a limiting hole is arranged on it; the limiting The washer is accommodated in the limiting hole and connected with the lock handle so as to rotate with the lock handle relative to the lock base; The pads abut against each other, and are used for cooperating with the limiting pads to realize the rotational positioning of the lock handle.

In one of the embodiments, the limiting frame is provided with two notches radially opposite to the limiting hole, and the two notches communicate with the limiting hole; the positioning member includes a second The elastic element and the pressing element, each second elastic element and each pressing element are respectively accommodated in each notch; the outer wall of the spacer is provided with a plurality of grooves, and one end of the pressing element It abuts against one of the grooves of the limiting washer, and the other end abuts against the second elastic element.

In one embodiment, the second elastic element is a spring, and the pressing element is a steel ball matched with the spring.

In one of the embodiments, the lock handle includes a handle for the user to operate and a rotating shaft connected to one end of the handle, the end of the rotating shaft away from the handle includes a square shaft in the shape of a square column, and the limit The surface of the spacer opposite to the spacer is provided with a square hole matched with the square shaft.

In one of the embodiments, the limiting assembly includes a connecting piece, and the connecting piece passes through the square hole to fixedly connect the limiting washer to the lock handle.

In the utility model, the cover plate is closed on the lock seat to hide the lock seat and the screws on it, so that the appearance of the whole crescent lock remains consistent and integrated, which greatly improves the appearance of the handle. At the same time, the cover plate can be lifted up and rotated at a certain angle relative to the lock seat under the action of external force, so that the cover plate and the lock seat are separated and staggered at a certain angle, so as to facilitate the installation of the lock seat, making the entire installation process convenient and fast. Improve installation efficiency.

Description of drawings

Fig. 1 is the structural representation of the crescent lock in the utility model.

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , a crescent lock in an embodiment of the present invention includes a lock base 10 , a cover plate 20 , a first elastic element 30 , a lock ring 40 , a lock handle 50 and a limiting component 70 . Lock base 10 is fixedly installed on the door and window. The cover plate 20 is movable to cover the lock base 10 and can be separated from the lock base 10 in a direction away from the lock base 10 under the action of an external force, so as to rotate relative to the lock base 10 . The lock handle 50 is rotatably mounted on the lock base 10 through the cover plate 20 . The lock ring 40 is sheathed on the lock handle 50 and can rotate with the lock handle 50 relative to the lock base 10 to open or lock the door or window. The limiting component 70 is disposed in the lock base 10 for positioning the rotation of the lock handle 50 relative to the lock base 10 . The first elastic element 30 is disposed between the cover plate 20 and the lock handle 50 to provide a space for the cover plate 20 to be separated from the lock base 10 and to provide a restoring force to move toward the lock base 10 .

The lock base 10 is in the shape of a hollow long frame with one end open, and it is fixedly installed on the door and window through lock accessories (such as screws, etc.). When installed, the open end of the lock base 10 faces the door and window. A boss 11 protrudes from the surface of the lock seat 10 facing away from the door and window, that is, facing the cover plate 20 . A certain height difference is formed between the edge of the boss 11 and the surface of the lock seat 10 . A through hole 110 penetrating through the boss 11 is provided in the middle of the lock base 10 .

The cover plate 20 is movably covered on the boss 11 of the lock base 10 , and the surface opposite to the lock base 10 is provided with a through hole 21 coaxial with the through hole 110 and communicating with each other. A ring-shaped flange 22 is provided on the surface of the cover plate 20 facing away from the lock seat 10 with the through hole 21 as the center and along the edge of the through hole 21 . A receiving groove 23 for receiving the first elastic element 30 is formed between the flange 22 and the surface of the cover plate 20 . The first elastic element 30 is sheathed on the flange 22 and accommodated in the receiving groove 23 for providing a restoring force for the cover 20 to move toward the lock seat 10 . Wherein, the first elastic element 30 is an elastic gasket between the cover plate 20 and the lock ring 40 , such as a spring steel sheet, a plastic gasket, and the like. In this embodiment, the first elastic element 30 is an annular plastic gasket, and a first elastic arm 31 and a second elastic arm 32 are arranged on opposite sides thereof along the axial direction. The first elastic arm 31 and the second elastic arm 32 abut against the cover plate 20 and the lock handle 50 respectively, and a certain elastic space 33 is formed between them, so that the first elastic element 30 is hollowed out.

The lock handle 50 is rotatably installed on the lock base 10 to open and lock the door and window, and includes a handle 51 operated by a user and a rotating shaft 53 connected to one end of the handle 51 . Wherein, the handle 51 is designed in a shape that is convenient for the user to hold. In this embodiment, the rotating shaft 53 is vertically connected to one end of the handle 51 , and the end of the rotating shaft 53 away from the handle 51 includes a square column-shaped square shaft 530 . The lock ring 40 passes through the rotating shaft 53 and is located between the first elastic element 30 and the lock handle 21 , and can rotate with the lock handle 21 relative to the lock base 10 . When the cover plate 20 is closed on the boss 11 of the lock seat 10, the first elastic arm 31 in the first elastic member 30 will press the lock ring 40 in the direction close to the lock handle 21; When separating from the lock base 10 in the direction away from the lock base 10, the first elastic arm 31 and the second elastic arm 32 are pressed by the cover plate 20 and when the external force is released, the first elastic arm 31 pushes the lock ring 40 closer to the lock handle 21 The second elastic arm 32 provides a restoring force for the cover 20 to move toward the lock seat 10 .

The limiting component 70 is fixedly accommodated in the lock base 10 through the open end of the lock base 10 , and is used for positioning the rotation movement of the lock handle 50 relative to the lock base 10 . The limiting assembly 70 includes a limiting frame 71 , a limiting washer 73 , a connecting piece 75 and a positioning piece.

The limiting frame 71 is substantially rectangular, and a limiting hole 710 for accommodating the limiting washer 73 is disposed on it. Meanwhile, the limiting hole 710 is coaxial with the through hole 110 and communicates with each other. In this embodiment, the through hole 110 , the through hole 21 and the limiting hole 710 are all circular holes, so as to prevent the lock base 10 , the cover plate 20 and the limiting frame 71 from rotating together with the lock handle 50 . The limiting frame 71 is provided with two notches 711 radially opposite to each other along the limiting hole 710 . Both notches 711 communicate with the limiting hole 710 .

The limiting washer 73 is approximately hollow cylindrical, and is disposed in the limiting hole 710 . The surface of the limit washer 73 opposite to the limit frame 71 is provided with a square hole 730 matching with the square shaft 530 in the lock handle 50 . The square axis 530 of the lock handle 50 passes through the lock ring 40, the first elastic element 30, the through hole 21 of the cover plate 20, the through hole 110 of the lock seat 10 and the limit hole 710 of the limit frame 71 and is inserted into the limit pad In the square hole 730 of the sheet 73 , the connecting piece 75 passes through the square hole 730 to securely connect the spacer washer 73 with the lock handle 50 . In this way, when the lock handle 50 rotates relative to the lock base 10 under the action of an external force, the lock ring 40 rotates together with the lock handle 50, and the limit washer 73 also rotates with the lock handle 50 in the limit hole 710; the cover plate 20 and the limit The bit frames 71 are all stationary relative to the lock base 10 . In this embodiment, the connecting piece 75 is a Phillips countersunk head screw.

The outer wall of the limit washer 73 is provided with a plurality of grooves 731 . A plurality of grooves 731 extend along the axial direction of the square hole 730 and are arranged at intervals along the circumferential direction on the outer periphery of the spacer 73 . In this embodiment, the grooves 731 are all semicircular.

The locating member is arranged on the limit frame 71 and abuts against the limit washer 73 , and is used to cooperate with the limit washer 73 to realize the rotational positioning of the lock handle 50 . Specifically, the positioning member includes a second elastic element 77 and a pressing element 79 . Wherein, there are two second elastic elements 77 and two resisting elements 79 , and each second elastic element 77 and each resisting element 79 are correspondingly accommodated in each notch 711 . Wherein, one end of each resisting element 79 abuts against one of the grooves 731 of the limiting washer 73 , and the other end abuts against one end of the second elastic element 77 . In this way, under the action of the second elastic element 77, the pressing element 79 presses against the spacer washer 73, so that the spacer washer 73 rotates smoothly and realizes the positioning of the lock handle 50, while improving the lock handle 50 to a certain extent. feel. In this embodiment, the pressing element 79 is a steel ball matched with the groove position 731, and the second elastic element 77 is a spring.

During the process of installing the crescent lock on the door and window, the cover plate 20 is lifted away from the lock seat 10 and rotated at a certain angle, so that the cover plate 20 is separated from the lock seat 10 and interlaced with each other. At this time, screws can be used to fix the lock base 10 on the door and window. After the lock seat 10 is installed, turn the cover plate 20 back to align with the boss 11 and release the external force, and the cover plate 20 will be re-covered on the lock seat 10 under the restoring force of the second elastic element 77 to complete the crescent. The installation of the lock is convenient and simple. In this way, the cover plate 20 hides the lock base 10 and the screws on it, so that the appearance of the entire crescent lock remains consistent and integrated, which greatly improves the appearance of the crescent lock.

During use, the lock handle 50 rotates relative to the lock base 10 under the action of an external force, the stop washer 73 rotates together with the square shaft 530 and pushes against the pressing element 79, and the second elastic element 77 is compressed so that the pressing element 79 When the lock ring 40 is rotated together with the lock handle 50 to open or lock the door and window; when the lock handle 50 rotates to a certain angle (for example, 180 degrees), the pressing element 79 is in the second elastic Under the action of the elastic force of the element 77, it falls into the next groove position 731 again to position the lock handle 50. At this time, the lock ring 40 rotates to a certain angle with the lock handle 50 to re-lock or open the door and window. At the same time, since the first elastic member 30 is located between the lock ring 40 and the lock base 10 to separate the two, the noise caused by friction between the lock handle 50 and the lock base 10 during rotation relative to the lock base 10 is avoided.

In the utility model, the cover plate 20 covers the lock base 10, and hides the lock base 10 and the screws on it, so that the appearance of the entire crescent lock remains consistent and integrated, which greatly improves the appearance of the crescent lock. At the same time, the cover plate 20 can be lifted up and rotated at a certain angle relative to the lock base 10 under the action of external force, so that the cover plate 20 is separated from the lock base 10 and staggered to form a certain angle, so as to facilitate the installation of the lock base 10 and make the entire installation process Convenient and fast to improve installation efficiency. In addition, under the action of the second elastic element 77, the pressing element 79 presses against the spacer washer 73, so that the spacer washer 73 rotates smoothly and realizes the positioning of the lock handle 50, while improving the lock handle 50 to a certain extent. feel.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. crescent lock, is characterized in that: comprise lock, cover plate, lock handle, the first flexible member and limit assembly; Described cover plate to be covered on described lock and can under external force to be separated with described lock away from described lock direction and to rotate relative to described lock, described lock handle is installed on described lock through described cover plate revolvably, described limit assembly is arranged in described lock, for positioning the rotary motion of described lock handle relative to described lock, described first flexible member is arranged between described cover plate and described lock handle, to provide to the restoring force near the motion of described lock direction for the space that is separated for the relatively described lock of described cover plate.

2. crescent lock as claimed in claim 1, it is characterized in that: the both sides that described first flexible member is relative are provided with the first elastic arm and the second elastic arm, described crescent lock also comprises and being arranged on described lock handle with the lock ring that described lock handle rotates, described first elastic arm and the certain elastic space of described second elastic arm gap-forming between the two, and both are connected on described cover plate and described lock ring respectively.

3. crescent lock as claimed in claim 2, is characterized in that: described first flexible member is be connected to the described elastomeric pad to the annular between hand seat and described lock ring.

4. crescent lock as claimed in claim 3, is characterized in that: described first flexible member is be connected to the described plastic spacer to the annular between hand seat and described lock ring.

5. crescent lock as claimed in claim 1, is characterized in that: the middle part of described lock is provided with the through hole passed for described lock handle, and the surface that described cover plate is relative with described lock is provided with and the perforation that be interconnected coaxial with described through hole; The surface of described cover plate described lock is dorsad provided with collar flange along the edge of described perforation centered by perforation, be formed with accepting groove between the surface of described flange and described cover plate, described first flexible member to be sheathed on described flange and to be contained in described accepting groove.

6. crescent lock as claimed in claim 1, is characterized in that: described limit assembly comprises position-limited rack, spacing shim and keeper, and it is interior and be provided with spacing hole that described position-limited rack fixedly is contained in described lock; Described spacing shim to be contained in described spacing hole and to be connected with described lock handle, to rotate relative to described lock with described lock handle; Described keeper to be arranged on described position-limited rack and to abut against with described spacing shim, locates for coordinating the rotation realizing described lock handle with described spacing shim.

7. crescent lock as claimed in claim 6, it is characterized in that: described position-limited rack is diametrically provided with two notches along described spacing hole, described two notches are all interconnected with described spacing hole; Described keeper comprises the second flexible member and pressing element, and each second flexible member and each pressing element are contained in each notch respectively; Described spacing shim outside wall surface is provided with multiple groove position, and one end of described pressing element is connected in one of them groove position of described spacing shim, and the other end abuts with described second flexible member.

8. crescent lock as claimed in claim 7, it is characterized in that: described second flexible member is spring, described pressing element is the steel ball coordinated with described spring.

9. crescent lock as claimed in claim 6, it is characterized in that: described lock handle comprises the handle supplying user operation and the rotating shaft be connected with described handle one end, described rotating shaft comprises the square shaft of the column that is square away from one end of described handle, and the surface that described spacing shim is relative with described position-limited rack is provided with the square hole coordinated with described square shaft.

10. crescent lock as claimed in claim 9, is characterized in that: described limit assembly comprises connector, and described spacing shim is fixedly connected with described lock handle through described square hole by described connector.